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WO2020186433A1 - 显示基板、显示装置、控制方法和控制电路 - Google Patents

显示基板、显示装置、控制方法和控制电路 Download PDF

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Publication number
WO2020186433A1
WO2020186433A1 PCT/CN2019/078594 CN2019078594W WO2020186433A1 WO 2020186433 A1 WO2020186433 A1 WO 2020186433A1 CN 2019078594 W CN2019078594 W CN 2019078594W WO 2020186433 A1 WO2020186433 A1 WO 2020186433A1
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WO
WIPO (PCT)
Prior art keywords
sub
power supply
supply voltage
pixels
pixel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2019/078594
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English (en)
French (fr)
Inventor
陆旭
梁恒镇
朱潇龙
刘练彬
李凡
王士豪
孟欢
徐文
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BOE Technology Group Co Ltd
Chengdu BOE Optoelectronics Technology Co Ltd
Original Assignee
BOE Technology Group Co Ltd
Chengdu BOE Optoelectronics Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BOE Technology Group Co Ltd, Chengdu BOE Optoelectronics Technology Co Ltd filed Critical BOE Technology Group Co Ltd
Priority to CN201980000332.0A priority Critical patent/CN112219232B/zh
Priority to PCT/CN2019/078594 priority patent/WO2020186433A1/zh
Priority to EP19858630.7A priority patent/EP3958244A4/en
Priority to US16/641,082 priority patent/US11087690B2/en
Publication of WO2020186433A1 publication Critical patent/WO2020186433A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/2003—Display of colours
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    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
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    • G09G3/3258—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the voltage across the light-emitting element
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    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
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    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3607—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
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    • G09G2300/0452—Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
    • G—PHYSICS
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    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0232—Special driving of display border areas
    • G—PHYSICS
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    • G09G2320/0276—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
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    • G09G2380/02—Flexible displays

Definitions

  • the present disclosure relates to the field of display technology, and in particular to a display substrate, a display device, a control method, and a control circuit.
  • a display screen such as an OLED (Organic Light-Emitting Diode, organic light emitting diode) display
  • a right-angle CG Cross Glass, glass cover
  • the display screen prepared by this technology can be applied to mobile phones and other products.
  • a display substrate including: a bending area, the bending area includes a plurality of first sub-pixels and a plurality of other light-emitting color different from the first sub-pixels Sub-pixels; the plurality of first sub-pixels are electrically connected to the same first power supply voltage terminal for providing a first power supply voltage; the other sub-pixels are electrically connected to other power supply voltage terminals different from the first power supply voltage terminal connection.
  • the plurality of other sub-pixels includes a plurality of second sub-pixels and a plurality of third sub-pixels, wherein the first sub-pixel, the second sub-pixel, and the third sub-pixel Sub-pixels with different light-emitting colors.
  • the other power supply voltage terminal includes a second power supply voltage terminal for providing a second power supply voltage and a third power supply voltage terminal for providing a third power supply voltage; in the bending region, the The plurality of second sub-pixels are electrically connected to the same second power supply voltage terminal, and the plurality of third sub-pixels are electrically connected to the same third power supply voltage terminal.
  • the other power supply voltage terminal includes a fourth power supply voltage terminal for providing a fourth power supply voltage; in the bending area, the plurality of second sub-pixels and the plurality of third The sub-pixel is electrically connected to the fourth power supply voltage terminal.
  • sub-pixels in the same sub-pixel column are sub-pixels with the same emission color.
  • the light-emitting colors of the sub-pixels in two adjacent sub-pixel columns are different.
  • the bending area includes a plurality of first-type pixels, and each first-type pixel includes the first sub-pixel, the second sub-pixel, and the third sub-pixel in the same sub-pixel row. Sub-pixels, wherein, in each first-type pixel, the second sub-pixel and the third sub-pixel are respectively adjacent to the first sub-pixel, and the first sub-pixel is in the second Between the sub-pixel and the third sub-pixel.
  • the display substrate further includes: a flat area adjacent to the bending area, the flat area includes a plurality of second-type pixels, and each second-type pixel includes pixels in the same sub-pixel row. Two first sub-pixels, one second sub-pixel, and one third sub-pixel, wherein, in the second type pixel, the second sub-pixel and the third sub-pixel are divided by the two first sub-pixels One of the first sub-pixels in is spaced apart, and the two first sub-pixels are spaced apart by the second sub-pixel or the third sub-pixel.
  • all the first sub-pixels, the second sub-pixels, and the third sub-pixels in the flat area are electrically connected to the same fifth power supply voltage terminal for providing the fifth power supply voltage.
  • the first subpixel is a green subpixel
  • the second subpixel is a red subpixel
  • the third subpixel is a blue subpixel
  • the first power supply voltage is lower than the power supply voltage provided by the other power supply voltage terminals.
  • a display device including the display substrate as described above.
  • a control method for a display panel including the display substrate as shown above; the control method includes: The plurality of first sub-pixels provide a first power supply voltage, and other power supply voltages are provided to a plurality of other sub-pixels in the bending area whose light-emitting color is different from the first sub-pixel.
  • the plurality of other sub-pixels includes a plurality of second sub-pixels and a plurality of third sub-pixels, wherein the first sub-pixel, the second sub-pixel, and the third sub-pixel For sub-pixels with different light-emitting colors; the step of providing other power supply voltages includes: providing a second power supply voltage to the plurality of second sub-pixels in the bending area, and supplying a second power supply voltage to all the sub-pixels in the bending area.
  • the plurality of third sub-pixels provide a third power supply voltage.
  • the plurality of other sub-pixels includes a plurality of second sub-pixels and a plurality of third sub-pixels, wherein the first sub-pixel, the second sub-pixel, and the third sub-pixel
  • the step of providing other power supply voltages includes: providing a fourth power supply voltage to the plurality of second sub-pixels and the plurality of third sub-pixels in the bending area.
  • the control method further includes: obtaining display picture information of the bending area of the display panel and standard picture information corresponding to the display picture information, wherein the display picture information includes color coordinates The horizontal coordinate and the vertical coordinate, the standard picture information includes a predetermined horizontal coordinate range and a predetermined vertical coordinate range of the color coordinate; and the horizontal coordinate and the vertical coordinate according to the color coordinate of the displayed picture information, and the predetermined horizontal coordinate range and In the predetermined ordinate range, at least one of the first power supply voltage, the second power supply voltage, and the third power supply voltage is adjusted so that the abscissa of the color coordinate in the displayed picture information is within the predetermined Within the range of the abscissa, and the ordinate of the color coordinate in the displayed picture information is within the range of the predetermined ordinate.
  • the first subpixel is a green subpixel
  • the second subpixel is a red subpixel
  • the third subpixel is a blue subpixel
  • the step of adjusting at least one of the first power supply voltage, the second power supply voltage, and the third power supply voltage includes: according to the abscissa of the color coordinate of the displayed picture information and the predetermined
  • the abscissa range adjusts the second power supply voltage so that the abscissa of the color coordinate of the displayed picture information is within the predetermined abscissa range; and the ordinate of the color coordinate of the displayed picture information is different from the predetermined
  • the ordinate range adjusts at least one of the first power supply voltage and the third power supply voltage, so that the ordinate of the color coordinate of the displayed picture information is within the predetermined ordinate range.
  • the display picture information further includes display brightness
  • the standard picture information further includes a predetermined brightness range
  • the control method further includes: adjusting at least one of the first power supply voltage, the second power supply voltage, and the third power supply voltage according to the display brightness and the predetermined brightness range , So that the display brightness is within the predetermined brightness range.
  • the control method further includes: determining whether the adjusted display brightness is within the predetermined brightness range, whether the abscissa of the adjusted color coordinate is within the predetermined abscissa range, and the adjusted Whether the ordinate of the color coordinate is within the predetermined ordinate range; wherein, when the adjusted display brightness is not within the predetermined brightness range, continue to adjust the first power supply voltage, the second power supply voltage and At least one of the third power supply voltages to adjust the display brightness of the displayed picture information to the predetermined brightness range; in the case that the abscissa of the adjusted color coordinate is not within the predetermined abscissa range, Continue to adjust the second power supply voltage to adjust the abscissa of the color coordinate of the displayed picture information to the predetermined abscissa range; if the ordinate of the adjusted color coordinate is not within the predetermined ordinate range In this case, continue to adjust at least one of the first power supply voltage and the third power supply voltage to adjust the ordinate of the color coordinate of the displayed picture information
  • the step of adjusting the second power supply voltage according to the abscissa of the color coordinate of the displayed picture information and the predetermined abscissa range includes: when the abscissa of the color coordinate of the displayed picture information is greater than all In the case of the upper limit of the predetermined abscissa range, reduce the second power supply voltage; in the case that the abscissa of the color coordinate of the displayed picture information is less than the lower limit of the predetermined abscissa range, increase the The second power supply voltage.
  • the step of adjusting at least one of the first power supply voltage and the third power supply voltage according to the ordinate of the color coordinate of the displayed picture information and the predetermined ordinate range includes: When the ordinate of the color coordinate of the picture information is greater than the upper limit of the predetermined ordinate range, at least one of the first power supply voltage and the third power supply voltage is reduced; When the ordinate of is smaller than the lower limit of the predetermined ordinate range, at least one of the first power supply voltage and the third power supply voltage is increased.
  • the step of adjusting at least one of the first power supply voltage, the second power supply voltage, and the third power supply voltage according to the display brightness and the predetermined brightness range includes: If the brightness is greater than the upper limit of the predetermined brightness range, the first power supply voltage is decreased; if the display brightness is less than the lower limit of the predetermined brightness range, the second power supply voltage and the second power supply voltage are increased. At least one of the third power supply voltage.
  • the first power supply voltage is lower than the other power supply voltages.
  • a control circuit for a display panel including the display substrate as shown above; the control circuit includes: a first voltage supply unit configured to The first power supply voltage is provided to the plurality of first sub-pixels in the bending area; other voltage supply units are configured to provide power to the plurality of first sub-pixels in the bending area Other sub-pixels with different emission colors provide other power supply voltages.
  • the plurality of other sub-pixels includes a plurality of second sub-pixels and a plurality of third sub-pixels, wherein the first sub-pixel, the second sub-pixel, and the third sub-pixel Are sub-pixels with different light-emitting colors; other voltage supply units include: a second voltage supply unit configured to provide a second power supply voltage to the plurality of second sub-pixels in the bending area; and a third voltage The providing unit is configured to provide a third power supply voltage to the plurality of third sub-pixels in the bending area.
  • the plurality of other sub-pixels includes a plurality of second sub-pixels and a plurality of third sub-pixels, wherein the first sub-pixel, the second sub-pixel, and the third sub-pixel Are sub-pixels with different light-emitting colors;
  • the other voltage supply unit includes: a fourth voltage supply unit configured to supply the plurality of second sub-pixels and the plurality of third sub-pixels in the bending area The pixel provides the fourth power supply voltage.
  • control circuit further includes: an acquiring unit configured to acquire display picture information of the bending area of the display panel and standard picture information corresponding to the display picture information, wherein the display The picture information includes the abscissa and the ordinate of the color coordinate, the standard picture information includes the predetermined abscissa range and the predetermined ordinate range of the color coordinate; and the adjustment unit is configured to display according to the abscissa of the color coordinate of the picture information And the ordinate, and the predetermined abscissa range and the predetermined ordinate range, adjusting at least one of the first power supply voltage, the second power supply voltage, and the third power supply voltage, so that the displayed picture The abscissa of the color coordinate in the information is within the predetermined abscissa range, and the ordinate of the color coordinate in the display picture information is within the predetermined ordinate range.
  • an acquiring unit configured to acquire display picture information of the bending area of the display panel and standard picture information corresponding to the display picture information, wherein the display The picture
  • FIG. 1 is a schematic cross-sectional view showing a display panel according to an embodiment of the present disclosure
  • FIG. 2 is a schematic diagram showing the arrangement of sub-pixels of a display substrate according to an embodiment of the present disclosure
  • FIG. 3 is a schematic diagram showing the arrangement of sub-pixels of a display substrate according to another embodiment of the present disclosure.
  • FIG. 4 is a flowchart showing a control method for a display panel according to an embodiment of the present disclosure
  • FIG. 5 is a flowchart showing a control method for a display panel according to another embodiment of the present disclosure
  • FIG. 6 is a structural block diagram showing a control circuit for a display panel according to an embodiment of the present disclosure
  • FIG. 7 is a structural block diagram showing a control circuit for a display panel according to another embodiment of the present disclosure.
  • FIG. 8 is a structural block diagram showing a control circuit for a display panel according to another embodiment of the present disclosure.
  • FIG. 9 is a schematic diagram showing experimental results in which bright lines appear at the edge of the display panel during the display process of the display panel.
  • FIG. 10 is a schematic diagram showing the experimental results in which bright lines appear at the edge of the display panel during the display of the green screen on the display panel.
  • a specific device when it is described that a specific device is located between the first device and the second device, there may or may not be an intermediate device between the specific device and the first device or the second device.
  • the specific device When it is described that a specific device is connected to another device, the specific device may be directly connected to the other device without an intermediate device, or may not be directly connected to the other device but has an intermediate device.
  • FIG. 1 is a schematic cross-sectional view showing a display panel according to an embodiment of the present disclosure. This FIG. 1 shows a display panel prepared by a right-angle CG bonding process.
  • the display panel may include a bending area 110.
  • the display panel may further include a flat area 120.
  • the bending area 110 may be provided on both sides of the flat area 120 respectively.
  • system software can be set in the display device (such as a mobile phone) to which the display panel is applied to implement side touch, so that the Power button and volume adjustment button set on the side of the display device can be cancelled. Wait.
  • the display screen may have the problem of edge bright lines in the right-angle CG bonding state.
  • the color of the bright line on the edge is yellow, which can be called a yellow fringe phenomenon.
  • a bright line 1101 appears at the bending area 110 of the display panel.
  • the inventors of the present disclosure have discovered through research that, in the case of comparing three color pictures of pure red, pure green and pure blue, it is found that pure green pictures are prone to bright edges. For example, as shown in FIG. 10, during the process of displaying the green screen 1104 on the display panel, a bright line 1103 appears at the bending area 110.
  • the inventors of the present disclosure have also found that the yellow fringing phenomenon can be reduced when the brightness of the displayed pure green picture is reduced. Therefore, the yellowish edge of the display screen may be caused by the light dispersion of the green pixels at the right-angle edge of the CG.
  • the inventor of the present disclosure proposes a sub-pixel arrangement for a display substrate of a display panel, so as to alleviate the above-mentioned edge bright line problem.
  • the arrangement of the edge sub-pixels of the display substrate according to some embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.
  • FIG. 2 is a schematic diagram showing the arrangement of sub-pixels of a display substrate according to an embodiment of the present disclosure. This FIG. 2 schematically shows the bending area 110, the flat area 120 and the bending start position 130.
  • the display substrate may include a bending area 110.
  • the bending area 110 may include a plurality of first sub-pixels 211 and a plurality of other sub-pixels whose light-emitting color is different from that of the first sub-pixel 211.
  • the plurality of first sub-pixels 211 are electrically connected to the same first power supply voltage terminal 231 for providing the first power supply voltage ELVDD1 (here, ELVDD is Emission Layer Voltage Drain Drain, light-emitting layer power supply voltage).
  • ELVDD1 is Emission Layer Voltage Drain Drain, light-emitting layer power supply voltage
  • the other sub-pixels are electrically connected to other power voltage terminals different from the first power voltage terminal 231.
  • the plurality of other sub-pixels may include a plurality of second sub-pixels 212 and a plurality of third sub-pixels 213.
  • the first sub-pixel 211, the second sub-pixel 212, and the third sub-pixel 213 are sub-pixels with different light-emitting colors.
  • the first sub-pixel 211 is a green sub-pixel G
  • the second sub-pixel 212 is a red sub-pixel R
  • the third sub-pixel 213 is a blue sub-pixel B.
  • the application to the first sub-pixel can be adjusted.
  • the size of the power supply voltage For example, the first power supply voltage applied to the green sub-pixel (ie, the first sub-pixel) can be reduced, thereby reducing the problem of bright lines at the edges of the display screen.
  • the power supply voltage applied to the sub-pixels of other colors for example, red or blue
  • the problem of edge bright lines can also be reduced to a certain extent.
  • the first power supply voltage ELVDD1 is lower than the power supply voltage provided by other power supply voltage terminals. This can alleviate the problem of bright lines on the edges of the display to a certain extent.
  • other power supply voltage terminals may include a second power supply voltage terminal 232 for providing the second power supply voltage ELVDD2 and a third power supply voltage terminal 233 for providing the third power supply voltage ELVDD3.
  • the plurality of second sub-pixels 212 are electrically connected to the same second power voltage terminal 232
  • the plurality of third sub-pixels 213 are electrically connected to the same third power voltage terminal 233.
  • the first power supply voltage ELVDD1 is lower than the second power supply voltage ELVDD2, or the first power supply voltage ELVDD1 is lower than the third power supply voltage ELVDD3.
  • the first power supply voltage is lower than the second power supply voltage, or the first power supply voltage is lower than the third power supply voltage.
  • the light-emitting brightness of the green sub-pixel G (that is, the first sub-pixel) can be made smaller than the light-emitting brightness of the conventional setting value of the green sub-pixel, so that the brightness ratio of the green sub-pixel can be reduced, thereby reducing the problem of edge bright lines.
  • the power supply voltage applied to the sub-pixels of each color in the bending area can be adjusted separately (described in detail later).
  • it can also make the displayed picture information (such as brightness, color coordinates, etc.) conform to the relevant range of standard picture information (such as predetermined brightness range, predetermined abscissa range of color coordinates, and Predetermine the ordinate range, etc.) to improve the display effect.
  • the sub-pixels in the same sub-pixel column are sub-pixels with the same emission color.
  • the sub-pixels in the same sub-pixel column may all be red sub-pixels R, or all green sub-pixels G, or all blue sub-pixels B. This is beneficial to electrically connect the sub-pixels with the same light-emitting color to the corresponding same power supply voltage terminal.
  • all green sub-pixels are electrically connected to the first power supply voltage terminal 231
  • all red sub-pixels are electrically connected to the second power supply voltage terminal 232
  • all the blue The sub-pixel is electrically connected to the third power voltage terminal 233.
  • the light-emitting colors of the sub-pixels in two adjacent sub-pixel columns are different.
  • one sub-pixel column is a green sub-pixel column
  • the sub-pixel columns adjacent to the green sub-pixel column may all be red sub-pixel columns (for example, on the left side of the green sub-pixel column and corresponding to each other).
  • Adjacent sub-pixel columns) or all blue sub-pixel columns for example, adjacent sub-pixel columns to the right of the green sub-pixel. This can prevent two sub-pixel columns with the same emission color from being adjacent, thereby improving the display effect.
  • the bending area 110 may include a plurality of pixels 21 of the first type.
  • Each first type pixel 21 may include a first sub-pixel 211 (e.g., a green sub-pixel G), a second sub-pixel 212 (e.g., a red sub-pixel R), and a third sub-pixel 213 (e.g., blue sub-pixel R) in the same sub-pixel row.
  • Sub-pixel B In each first-type pixel 21, the second sub-pixel 212 and the third sub-pixel 213 are respectively adjacent to the first sub-pixel 211, and the first sub-pixel 211 is located between the second sub-pixel 212 and the Between the third sub-pixels 213.
  • the display panel may further include a flat area 120 adjacent to the bending area 110.
  • the flat area 120 may include a plurality of second-type pixels 22.
  • Each second type pixel 22 may include two first sub-pixels 211 (for example, green sub-pixel G), one second sub-pixel 212 (for example, red sub-pixel R) and one third sub-pixel 213 in the same sub-pixel row. (For example, blue sub-pixel B).
  • the second sub-pixel 212 and the third sub-pixel 213 are separated by one of the two first sub-pixels 212.
  • the two first sub-pixels 211 are separated by the second sub-pixel 212 or the third sub-pixel 213.
  • the sub-pixels of each pixel are arranged in the manner of RGBG (or BGRG), which can improve the display effect.
  • all the first sub-pixel 211, the second sub-pixel 212, and the third sub-pixel 213 in the flat area 120 are the same as the fifth sub-pixel used to provide the fifth power voltage ELVDD5.
  • the power supply voltage terminal 235 is electrically connected.
  • all the sub-pixels in the flat area are electrically connected to the same power supply voltage terminal, which can simplify the circuit complexity of the flat area.
  • the arrangement of the sub-pixels in the bent area is different from the arrangement of the sub-pixels in the flat area.
  • the bending area uses the RGB sub-pixel arrangement
  • the flat area uses the RGBG sub-pixel arrangement.
  • the arrangement of the sub-pixels in the bent area may be the same as the arrangement of the sub-pixels in the flat area.
  • the bending area can also adopt the RGBG sub-pixel arrangement, that is, the bending area can adopt the same or similar sub-pixel arrangement as the flat area in FIG. 2, and all green sub-pixels in the bending area (Ie, the first sub-pixel) is electrically connected to the same first power supply voltage terminal, all the red sub-pixels (ie, the second sub-pixel) in the bending area are electrically connected to the same second power supply voltage terminal, and the bending All the blue sub-pixels (that is, the third sub-pixels) in the area are electrically connected to the same third power supply voltage terminal.
  • the flat area may also adopt an RGB sub-pixel arrangement, that is, the flat area may adopt the same or similar sub-pixel arrangement as the bending area in FIG. 2.
  • FIG. 3 is a schematic diagram showing the arrangement of sub-pixels of a display substrate according to another embodiment of the present disclosure.
  • the above-mentioned other power supply voltage terminal may include a fourth power supply voltage terminal for providing a fourth power supply voltage ELVDD4.
  • the display substrate shown in FIG. 3 is different in that: in the bending area 110, a plurality of second sub-pixels 212 (for example, red sub-pixels R) and a plurality of third The sub-pixel 213 (for example, the blue sub-pixel B) is electrically connected to the fourth power supply voltage terminal 234, that is, is electrically connected to the same power supply voltage terminal.
  • the first power supply voltage ELVDD1 is lower than the fourth power supply voltage ELVDD4.
  • the power supply voltage applied to the green sub-pixel is lower than the power supply voltage applied to the red sub-pixel and the blue sub-pixel, which can alleviate the problem of edge bright lines.
  • this embodiment can reduce the number of lines.
  • a display device may also be provided.
  • the display device may include the aforementioned display substrate (for example, the display substrate shown in FIG. 2 or FIG. 3).
  • the display device may be any product or component with a display function, such as a display panel, a display screen, a monitor, a mobile phone, a tablet computer, a notebook computer, a television, or a navigator.
  • a control method for a display panel can also be provided.
  • the display panel may include the display substrate as described above.
  • the control method may include: supplying a first power supply voltage to a plurality of first sub-pixels in the bending area, and providing other power supplies to a plurality of other sub-pixels in the bending area that have a different light emission color from the first sub-pixels Voltage.
  • the first power supply voltage is lower than other power supply voltages. This method can reduce the problem of edge bright lines.
  • the plurality of other sub-pixels may include a plurality of second sub-pixels and a plurality of third sub-pixels.
  • the first sub-pixel, the second sub-pixel and the third sub-pixel are sub-pixels with different light-emitting colors.
  • the first sub-pixel is a green sub-pixel
  • the second sub-pixel is a red sub-pixel
  • the third sub-pixel is a blue sub-pixel.
  • the step of providing other power supply voltages may include: supplying a second power supply voltage to the plurality of second sub-pixels in the bending area, and supplying a second power supply voltage to the plurality of third sub-pixels in the bending area.
  • the sub-pixel provides the third power supply voltage.
  • the display panel may include a display substrate as shown in FIG. 2.
  • a first power supply voltage is provided to a plurality of first sub-pixels (for example, green sub-pixels) in the bending area, and a plurality of second sub-pixels (for example, The red sub-pixel provides the second power supply voltage, and provides the third power supply voltage to the third sub-pixels (for example, the blue sub-pixels) in the bending area.
  • the first power supply voltage is lower than the second power supply voltage, or the first power supply voltage is lower than the third power supply voltage.
  • the problem of edge bright lines can be reduced.
  • the step of providing other power voltages may include: providing a fourth power voltage to the plurality of second sub-pixels and the plurality of third sub-pixels in the bending area.
  • the display panel may include a display substrate as shown in FIG. 3.
  • a first power supply voltage is provided to a plurality of first sub-pixels (for example, green sub-pixels) in the bending area, and a plurality of second sub-pixels (for example, the red sub-pixel) and a plurality of third sub-pixels (for example, the blue sub-pixel) provide the fourth power supply voltage.
  • the first power supply voltage is lower than the fourth power supply voltage.
  • the light-emitting brightness of the green sub-pixel G (that is, the first sub-pixel) can be made smaller than the light-emitting brightness of the green sub-pixel which is conventionally set, so that the green sub-pixel can be reduced.
  • the ratio of brightness to reduce the problem of edge bright lines can be made smaller than the light-emitting brightness of the green sub-pixel which is conventionally set, so that the green sub-pixel can be reduced.
  • some control methods for the display panel can also be used to try to make the displayed picture information meet the relevant range of the standard picture information, so as to maximize the display effect.
  • the aforementioned control method may also include the steps shown in FIG. 4.
  • control method for the display panel will be described in detail below with reference to FIG. 4 or FIG. 5.
  • FIG. 4 is a flowchart showing a control method for a display panel according to an embodiment of the present disclosure.
  • the display panel may include a display substrate as shown in FIG. 2.
  • the control method may include steps S402 to S404.
  • step S402 the display picture information of the bending area of the display panel and the standard picture information corresponding to the display picture information are obtained.
  • the display picture information includes the abscissa and the ordinate of the color coordinate
  • the standard picture information includes a predetermined abscissa range and a predetermined ordinate range of the color coordinate.
  • the color coordinate may be the white point color coordinate.
  • the white point color coordinate refers to the color coordinate value of the white picture obtained by mixing the three sub-pixels of red, green and blue.
  • an optical testing device may be used to take a picture of the displayed picture to collect optical data reflecting the displayed picture information, so as to obtain the displayed picture information of the bending area.
  • existing standard picture information or called original picture information
  • original picture information corresponding to the displayed picture information
  • step S404 at least one of the first power supply voltage, the second power supply voltage, and the third power supply voltage is adjusted according to the abscissa and ordinate of the color coordinate of the displayed picture information, and the predetermined abscissa range and the predetermined ordinate range, so that The abscissa of the color coordinate in the display picture information is within the predetermined abscissa range, and the ordinate of the color coordinate in the display picture information is within the predetermined ordinate range.
  • the displayed picture information of the bending area may be compared with the standard picture information. For example, the abscissa of the color coordinate of the displayed picture information of the bending area is compared with a predetermined abscissa range, and the ordinate of the color coordinate of the displayed picture information of the bending area is compared with the predetermined ordinate range.
  • the difference between the displayed picture information and the standard picture information can be obtained, and at least one of the first power supply voltage, the second power supply voltage and the third power supply voltage can be adjusted according to the difference, so that the abscissa of the color coordinate in the displayed picture information is Within the predetermined abscissa range, and the ordinate of the color coordinate in the displayed picture information is within the predetermined ordinate range.
  • the average value of the upper limit value and the lower limit value of the predetermined abscissa range can be obtained and the average value can be used as the middle value of the abscissa; then the difference between the abscissa of the color coordinate in the displayed picture information and the middle value of the abscissa can be calculated value. According to the difference, it can be roughly seen whether the abscissa of the color coordinate is too large or too small.
  • the abscissa of the color coordinate can be compared with the upper limit value and the lower limit of the predetermined abscissa range to determine whether the abscissa of the color coordinate is within the predetermined abscissa range.
  • the difference between the abscissa of the color coordinate and the median value of the abscissa may not be calculated.
  • the average value of the upper limit value and the lower limit value of the predetermined ordinate range can be obtained and the average value is used as the ordinate value; and then the ordinate value of the color coordinate in the displayed picture information and the ordinate value of the middle value can be calculated. Difference. According to the difference, it can be roughly seen whether the ordinate of the color coordinate is too large or too small.
  • the ordinate of the color coordinate can be compared with the upper limit and the lower limit of the predetermined ordinate range to determine whether the ordinate of the color coordinate is within the predetermined ordinate range. In other embodiments, the difference between the ordinate of the color coordinate and the intermediate value of the ordinate may not be calculated.
  • the step of adjusting at least one of the first power supply voltage, the second power supply voltage and the third power supply voltage may include: adjusting the second power supply voltage according to the abscissa of the color coordinate of the displayed picture information and a predetermined abscissa range, So that the abscissa of the color coordinate of the displayed picture information is within the predetermined abscissa range.
  • the inventor of the present disclosure found that the abscissa of the color coordinate is mainly affected by the red sub-pixel (ie, the second sub-pixel), so the abscissa of the color coordinate can be adjusted by adjusting the second power supply voltage applied to the red sub-pixel. In order to make the abscissa of the color coordinate of the displayed picture information within the predetermined abscissa range.
  • the step of adjusting the second power supply voltage may include: reducing the second power supply voltage when the abscissa of the color coordinate of the displayed picture information is greater than the upper limit of the predetermined abscissa range; When the abscissa of is smaller than the lower limit of the predetermined abscissa range, the second power supply voltage is increased.
  • the brightness of the red sub-pixel is reduced by reducing the second power supply voltage, or the brightness of the red sub-pixel is increased by increasing the second power supply voltage, so as to adjust the abscissa of the color coordinates of the displayed picture information.
  • the step of adjusting at least one of the first power supply voltage, the second power supply voltage, and the third power supply voltage may further include: adjusting the first power supply voltage according to the ordinate of the color coordinate of the displayed picture information and the predetermined ordinate range And at least one of the third power supply voltage, so that the ordinate of the color coordinate of the displayed picture information is within the predetermined ordinate range.
  • the inventors of the present disclosure found that the ordinate of the color coordinate is mainly affected by the green sub-pixel (i.e., the first sub-pixel) and the blue sub-pixel (i.e., the third sub-pixel), so it can be applied to the green sub-pixel by adjusting At least one of the first power supply voltage and the third power supply voltage applied to the blue sub-pixel is used to adjust the ordinate of the color coordinate so that the ordinate of the color coordinate of the displayed picture information is within a predetermined ordinate range.
  • the step of adjusting at least one of the first power supply voltage and the third power supply voltage may include: reducing the first power supply voltage when the ordinate of the color coordinate of the displayed picture information is greater than the upper limit of the predetermined ordinate range And at least one of the third power supply voltage; when the ordinate of the color coordinate of the displayed picture information is less than the lower limit of the predetermined ordinate range, at least one of the first power supply voltage and the third power supply voltage is increased.
  • the brightness of at least one of the green sub-pixel and the blue sub-pixel is reduced by reducing at least one of the first power supply voltage and the third power supply voltage, and by increasing the first power supply voltage and the third power supply voltage. At least one of the voltages is used to increase the brightness of at least one of the green sub-pixel and the blue sub-pixel, thereby adjusting the ordinate of the color coordinate of the displayed picture information.
  • a control method for a display panel is provided.
  • display picture information of the display panel and standard picture information corresponding to the display picture information are obtained.
  • the display picture information includes the abscissa and ordinate of the color coordinates.
  • the standard picture information includes a predetermined abscissa range and a predetermined ordinate range of the color coordinate.
  • the control method used for the above-mentioned display panel can not only alleviate the problem of edge bright lines, but also does not affect the normal display of pictures, thereby improving the display effect.
  • the displayed picture information may further include display brightness
  • the standard picture information may further include a predetermined brightness range.
  • the average value of the upper limit value and the lower limit value of the predetermined brightness range can be obtained and the average value is used as the median brightness value; then, the difference between the display brightness in the displayed picture information and the median brightness value is calculated. According to the difference, it can be roughly seen whether the display brightness is too large or too small.
  • the brightness can be compared with the upper limit value and the lower limit value of the predetermined brightness range to determine whether the display brightness is within the predetermined brightness range. In other embodiments, the difference between the display brightness and the median value of the brightness may not be calculated.
  • the control method may further include: adjusting the first power supply according to the display brightness and the predetermined brightness range. At least one of the voltage, the second power supply voltage, and the third power supply voltage such that the display brightness is within a predetermined brightness range. In this way, the brightness of the displayed picture information can meet the predetermined brightness range, thereby improving the display effect.
  • the step of adjusting at least one of the first power supply voltage, the second power supply voltage, and the third power supply voltage according to the display brightness and the predetermined brightness range may include: when the display brightness is greater than the upper limit of the predetermined brightness range , Reduce the first power supply voltage; when the display brightness is less than the lower limit of the predetermined brightness range, increase at least one of the second power supply voltage and the third power supply voltage.
  • the first power supply voltage applied to the green sub-pixel is reduced when the display brightness needs to be reduced, and the second power supply voltage applied to the red sub-pixel is increased when the display brightness needs to be increased.
  • the predetermined brightness range under a 255 grayscale image is 450nit (nits) ⁇ 3%, that is [436.5, 463.5], and the actual brightness of the edge area of the current screen is 470nit.
  • the actual brightness is greater than the upper limit 463.5nit. In order to improve the edge bright line problem and reduce the display brightness to within a predetermined brightness range, this can be achieved by reducing the first power supply voltage applied to the green sub-pixel. For another example, if the actual brightness of the edge area of the current screen is 430nit. If the actual brightness is less than the lower limit of 436.5 nit, the display brightness can be increased by increasing at least one of the second power supply voltage applied to the red sub-pixel and the third power supply voltage applied to the blue sub-pixel.
  • control method may further include: determining whether the adjusted display brightness is within a predetermined brightness range, whether the abscissa of the adjusted color coordinate is within the predetermined abscissa range, and the adjustment of the color coordinate Whether the ordinate is within the predetermined ordinate range.
  • the adjusted display brightness is not within the predetermined brightness range, continue to adjust at least one of the first power supply voltage, the second power supply voltage, and the third power supply voltage to adjust the display brightness of the displayed picture information to the predetermined brightness range.
  • the second power supply voltage is continuously adjusted to adjust the abscissa of the color coordinate of the displayed picture information to the predetermined abscissa range.
  • the ordinate of the adjusted color coordinate is not within the predetermined ordinate range, continue to adjust at least one of the first power supply voltage and the third power supply voltage to adjust the ordinate of the color coordinate of the displayed picture information to the predetermined ordinate Within range.
  • the displayed picture information can be made to conform to the standard picture information as much as possible, so that the display effect of the picture is not affected as much as possible when the brightness (or brightness ratio) of the green sub-pixel is reduced.
  • FIG. 5 is a flowchart showing a control method for a display panel according to another embodiment of the present disclosure.
  • the display panel may include a display substrate as shown in FIG. 2.
  • the control method may include steps S502 to S520.
  • step S502 the display picture information of the bending area of the display panel and the standard picture information corresponding to the display picture information are obtained.
  • the displayed picture information includes the abscissa and ordinate of the display brightness and color coordinates.
  • the standard picture information includes a predetermined brightness range, a predetermined abscissa range of color coordinates, and a predetermined ordinate range.
  • step S504 it is determined whether the display brightness of the displayed picture information is within a predetermined brightness range. If yes, the process goes to step S508; otherwise, the process goes to step S506.
  • step S506 at least one of the first power supply voltage, the second power supply voltage, and the third power supply voltage is adjusted according to the display brightness and the predetermined brightness range, so that the display brightness is within the predetermined brightness range.
  • the display brightness when the display brightness is greater than the upper limit of the predetermined brightness range, reduce the first power supply voltage; when the display brightness is less than the lower limit of the predetermined brightness range, increase at least the second power supply voltage and the third power supply voltage One.
  • step S508 it is determined whether the abscissa of the color coordinate of the displayed picture information is within a predetermined abscissa range. If yes, the process goes to step S512; otherwise, the process goes to step S510.
  • step S510 the second power supply voltage is adjusted according to the abscissa of the color coordinate of the displayed picture information and the predetermined abscissa range, so that the abscissa of the color coordinate of the displayed picture information is within the predetermined abscissa range.
  • the second power supply voltage is reduced; when the abscissa of the color coordinate of the displayed picture information is smaller than the lower limit of the predetermined abscissa range In the case of a limit value, increase the second power supply voltage.
  • step S512 it is determined whether the ordinate of the color coordinate of the displayed picture information is within a predetermined ordinate range. If yes, the process goes to step S516; otherwise, the process goes to step S514.
  • step S514 adjust at least one of the first power supply voltage and the third power supply voltage according to the ordinate of the color coordinate of the displayed picture information and the predetermined ordinate range, so that the ordinate of the color coordinate of the displayed picture information is within the predetermined ordinate range.
  • the ordinate of the color coordinate of the displayed picture information when the ordinate of the color coordinate of the displayed picture information is greater than the upper limit of the predetermined ordinate range, reduce at least one of the first power supply voltage and the third power supply voltage; When the coordinates are smaller than the lower limit of the predetermined ordinate range, at least one of the first power supply voltage and the third power supply voltage is increased.
  • the display brightness and color coordinates of the displayed picture information may change.
  • at least one of the first power supply voltage and the third power supply voltage needs to be adjusted, which may result in that the adjusted display brightness is not within the predetermined brightness range. Therefore, it is possible to continue to determine whether the display brightness and color coordinates are within their respective predetermined ranges.
  • step S5166 it is determined whether the adjusted display brightness is within a predetermined brightness range. If yes, the process proceeds to step S518; otherwise, the process returns to step S506, that is, continue to adjust at least one of the first power supply voltage, the second power supply voltage, and the third power supply voltage to adjust the display brightness of the displayed picture information to the predetermined brightness range Inside.
  • step S5128 it is determined whether the abscissa of the adjusted color coordinate is within a predetermined abscissa range. If so, the process goes to step S520; otherwise, the process returns to step S510, that is, the second power supply voltage is continuously adjusted to adjust the abscissa of the color coordinate of the displayed picture information to within the predetermined abscissa range.
  • step S520 it is determined whether the ordinate of the adjusted color coordinate is within a predetermined ordinate range. If so, the process ends; otherwise, the process returns to step S514, that is, continue to adjust at least one of the first power supply voltage and the third power supply voltage to adjust the ordinate of the color coordinate of the displayed picture information to the predetermined ordinate range.
  • steps S516 to S520 may be executed in a loop until the display brightness and color coordinates are within their respective predetermined ranges.
  • a control method for a display panel is provided.
  • the displayed picture information can be made to conform to the relevant predetermined range of the standard picture information. This can reduce the brightness (or brightness ratio) of the green sub-pixels without affecting the display of the picture. Therefore, the control method used for the above-mentioned display panel can not only alleviate the problem of edge bright lines, but also does not affect the normal display of pictures, thereby improving the display effect.
  • the brightness of the red sub-pixel or the blue sub-pixel in the bending area can be increased, and the brightness of the green sub-pixel can be suppressed, thereby reducing the edge yellow fringing problem.
  • the use of the above control method can further improve the problem of yellowing of the edges of the display panel, and improve the picture quality under the front viewing angle.
  • Fig. 6 is a structural block diagram showing a control circuit for a display panel according to an embodiment of the present disclosure.
  • a display panel 610 is shown in FIG. 6.
  • the display panel includes the display substrate as described above.
  • control circuit 600 may include a first voltage supply unit 601 and other voltage supply units.
  • the first voltage supply unit 601 is configured to provide a first power voltage to a plurality of first sub-pixels in the bending area.
  • the other voltage supply unit is configured to provide other power supply voltages to a plurality of other sub-pixels in the bending area that have a different light emission color from the first sub-pixel.
  • the plurality of other sub-pixels may include a plurality of second sub-pixels and a plurality of third sub-pixels.
  • the first sub-pixel, the second sub-pixel and the third sub-pixel are sub-pixels with different light-emitting colors.
  • the first power supply voltage is lower than the second power supply voltage, or the first power supply voltage is lower than the third power supply voltage.
  • the other voltage supply unit may include a second voltage supply unit 602 and a third voltage supply unit 603.
  • the second voltage supply unit 602 is configured to provide a second power supply voltage to a plurality of second sub-pixels in the bending area.
  • the third voltage supply unit 603 is configured to provide a third power voltage to a plurality of third sub-pixels in the bending area.
  • the first power supply voltage is supplied to the plurality of first sub-pixels in the bending area through the first voltage supply unit, and the first power supply voltage is supplied to the plurality of first sub-pixels in the bending area through other voltage supply units.
  • Other sub-pixels with different light-emitting colors from the first sub-pixel provide other power supply voltages.
  • the first power supply voltage is lower than the power supply voltage provided by the other power supply voltage terminals. This can alleviate the problem of bright lines on the edges of the display to a certain extent.
  • FIG. 7 is a structural block diagram showing a control circuit for a display panel according to another embodiment of the present disclosure.
  • the control circuit 700 may include a first voltage supply unit 601 and other voltage supply units.
  • the other voltage providing unit may include a fourth voltage providing unit 704.
  • the fourth voltage supply unit 704 is configured to supply the fourth power voltage to the plurality of second sub-pixels and the plurality of third sub-pixels in the bending area.
  • the first power supply voltage is lower than the fourth power supply voltage. This embodiment can also reduce the problem of bright lines on the edges of the display screen to a certain extent.
  • FIG. 8 is a structural block diagram showing a control circuit for a display panel according to another embodiment of the present disclosure.
  • the control circuit 800 may include a first voltage supply unit 601, a second voltage supply unit 602 and a third voltage supply unit 603.
  • a display panel 610 is also shown in FIG. 8.
  • control circuit 800 may further include an acquisition unit 805 and an adjustment unit 806.
  • the obtaining unit 805 is configured to obtain display picture information of the bending area of the display panel 610 and standard picture information corresponding to the display picture information.
  • the display picture information includes the abscissa and ordinate of the color coordinates.
  • the standard picture information includes a predetermined abscissa range and a predetermined ordinate range of the color coordinate.
  • the adjusting unit 806 is configured to adjust the first power supply voltage, the second power supply voltage, and the third power supply voltage according to the abscissa and ordinate of the color coordinate of the displayed picture information, and the predetermined abscissa range and the predetermined ordinate range. At least one of, such that the abscissa of the color coordinate in the display picture information is within the predetermined abscissa range, and the ordinate of the color coordinate in the display picture information is within the predetermined ordinate range.
  • the above-mentioned control circuit can make the abscissa of the color coordinate in the displayed picture information be within a predetermined abscissa range, and the ordinate of the color coordinate in the displayed picture information can be within the predetermined ordinate range. This can alleviate the problem of bright lines on the edge, and can not affect the normal display of the picture, thereby improving the display effect.
  • the adjustment unit 806 may be configured to adjust the second power supply voltage according to the abscissa of the color coordinate of the displayed picture information and a predetermined abscissa range, so that the abscissa of the color coordinate of the displayed picture information is at the same position. Within the predetermined abscissa range.
  • the adjusting unit 806 may also be configured to adjust at least one of the first power supply voltage and the third power supply voltage according to the ordinate of the color coordinate of the displayed picture information and a predetermined ordinate range, so that the ordinate of the color coordinate of the displayed picture information is Within the predetermined ordinate range.
  • the displayed picture information may further include display brightness
  • the standard picture information may further include a predetermined brightness range.
  • the adjusting unit 806 may also be configured to adjust at least one of the first power supply voltage, the second power supply voltage, and the third power supply voltage according to the display brightness and the predetermined brightness range, so that the display brightness is within the predetermined brightness range.
  • the adjustment unit 806 may also be configured to determine whether the adjusted display brightness is within a predetermined brightness range, whether the abscissa of the adjusted color coordinate is within a predetermined abscissa range, and the adjusted color coordinate Whether the ordinate of is within the predetermined ordinate range.
  • the adjusting unit 806 may also be configured to continue to adjust at least one of the first power supply voltage, the second power supply voltage, and the third power supply voltage when the adjusted display brightness is not within the predetermined brightness range to display picture information. The display brightness of is adjusted to the predetermined brightness range.
  • the adjustment unit 806 may also be configured to continue to adjust the second power supply voltage when the abscissa of the adjusted color coordinate is not within the predetermined abscissa range to adjust the abscissa of the color coordinate of the displayed picture information to Within the predetermined abscissa range.
  • the adjustment unit 806 may also be configured to continue to adjust at least one of the first power supply voltage and the third power supply voltage when the ordinate of the adjusted color coordinate is not within the predetermined ordinate range, so as to display the picture information.
  • the ordinate of the color coordinate is adjusted to be within the predetermined ordinate range.

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Abstract

一种显示基板、显示装置、控制方法和控制电路。显示基板包括弯折区（110）。弯折区（110）包括多个第一子像素（211）和多个与第一子像素（211）的发光颜色不同的其他子像素。多个第一子像素与同一个用于提供第一电源电压的第一电源电压端（231）电连接。其他子像素与不同于该第一电源电压端（231）的其他电源电压端电连接。本发明提供的显示基板、显示装置、控制方法和控制电路有利于减轻弯折区域的边缘亮线问题。

Description

显示基板、显示装置、控制方法和控制电路 技术领域
本公开涉及显示技术领域，特别涉及一种显示基板、显示装置、控制方法和控制电路。
背景技术
目前，为了增加显示屏(例如OLED(Organic Light-Emitting Diode，有机发光二极管)显示屏)的边缘显示，提升客户体验，可以采用直角CG(Cover Glass，玻璃盖板)贴合的技术。可以将通过该技术制备的显示屏应用到手机等产品上。
发明内容
根据本公开实施例的一个方面，提供了一种显示基板，包括：弯折区，所述弯折区包括多个第一子像素和多个与所述第一子像素的发光颜色不同的其他子像素；所述多个第一子像素与同一个用于提供第一电源电压的第一电源电压端电连接；所述其他子像素与不同于所述第一电源电压端的其他电源电压端电连接。
在一些实施例中，所述多个其他子像素包括多个第二子像素和多个第三子像素，其中，所述第一子像素、所述第二子像素和所述第三子像素为发光颜色不同的子像素。
在一些实施例中，所述其他电源电压端包括用于提供第二电源电压的第二电源电压端和用于提供第三电源电压的第三电源电压端；在所述弯折区中，所述多个第二子像素与同一个所述第二电源电压端电连接，所述多个第三子像素与同一个所述第三电源电压端电连接。
在一些实施例中，所述其他电源电压端包括用于提供第四电源电压的第四电源电压端；在所述弯折区中，所述多个第二子像素和所述多个第三子像素与所述第四电源电压端电连接。
在一些实施例中，在所述弯折区内，处于同一子像素列的子像素为发光颜色相同的子像素。
在一些实施例中，在所述弯折区内，分别在相邻的两个子像素列中的子像素的发光颜色不同。
在一些实施例中，所述弯折区包括多个第一类型像素，每个第一类型像素包括处 于同一子像素行的所述第一子像素、所述第二子像素和所述第三子像素，其中，在每个第一类型像素中，所述第二子像素和所述第三子像素分别与所述第一子像素相邻，且所述第一子像素在所述第二子像素和所述第三子像素之间。
在一些实施例中，所述显示基板还包括：与所述弯折区相邻的平坦区，所述平坦区包括多个第二类型像素，每个第二类型像素包括处于同一子像素行的两个第一子像素、一个第二子像素和一个第三子像素，其中，在所述第二类型像素中，该第二子像素和该第三子像素被所述两个第一子像素中的一个第一子像素间隔开，所述两个第一子像素被该第二子像素或该第三子像素间隔开。
在一些实施例中，在所述平坦区中的所有第一子像素、第二子像素和第三子像素与同一个用于提供第五电源电压的第五电源电压端电连接。
在一些实施例中，所述第一子像素为绿色子像素，所述第二子像素为红色子像素，所述第三子像素为蓝色子像素。
在一些实施例中，所述第一电源电压低于所述其他电源电压端所提供的电源电压。
根据本公开实施例的另一个方面，提供了一种显示装置，包括：如前所述的显示基板。
根据本公开实施例的另一个方面，提供了一种用于显示面板的控制方法，所述显示面板包括如前所示的显示基板；所述控制方法包括：向在所述弯折区中的所述多个第一子像素提供第一电源电压，向在所述弯折区中的多个与所述第一子像素的发光颜色不同的其他子像素提供其他电源电压。
在一些实施例中，所述多个其他子像素包括多个第二子像素和多个第三子像素，其中，所述第一子像素、所述第二子像素和所述第三子像素为发光颜色不同的子像素；提供其他电源电压的步骤包括：向在所述弯折区中的所述多个第二子像素提供第二电源电压，并向在所述弯折区中的所述多个第三子像素提供第三电源电压。
在一些实施例中，所述多个其他子像素包括多个第二子像素和多个第三子像素，其中，所述第一子像素、所述第二子像素和所述第三子像素为发光颜色不同的子像素；提供其他电源电压的步骤包括：向在所述弯折区中的所述多个第二子像素和所述多个第三子像素提供第四电源电压。
在一些实施例中，所述控制方法还包括：获得所述显示面板的弯折区的显示图片信息和与所述显示图片信息对应的标准图片信息，其中，所述显示图片信息包括色坐标的横坐标和纵坐标，所述标准图片信息包括色坐标的预定横坐标范围和预定纵坐标 范围；以及根据所述显示图片信息的色坐标的横坐标和纵坐标、以及所述预定横坐标范围和所述预定纵坐标范围，调节所述第一电源电压、所述第二电源电压和所述第三电源电压的至少一个，以使得所述显示图片信息中的色坐标的横坐标在所述预定横坐标范围内，以及所述显示图片信息中的色坐标的纵坐标在所述预定纵坐标范围内。
在一些实施例中，所述第一子像素为绿色子像素，所述第二子像素为红色子像素，所述第三子像素为蓝色子像素。
在一些实施例中，调节所述第一电源电压、所述第二电源电压和所述第三电源电压的至少一个的步骤包括：根据所述显示图片信息的色坐标的横坐标与所述预定横坐标范围调节所述第二电源电压，以使得所述显示图片信息的色坐标的横坐标在所述预定横坐标范围内；以及根据所述显示图片信息的色坐标的纵坐标与所述预定纵坐标范围调节所述第一电源电压和所述第三电源电压的至少一个，以使得所述显示图片信息的色坐标的纵坐标在所述预定纵坐标范围内。
在一些实施例中，所述显示图片信息还包括显示亮度，所述标准图片信息还包括预定亮度范围；在根据所述显示图片信息的色坐标的横坐标与所述预定横坐标范围调节所述第二电源电压的步骤之前，所述控制方法还包括：根据所述显示亮度和所述预定亮度范围调节所述第一电源电压、所述第二电源电压和所述第三电源电压的至少一个，以使得所述显示亮度在所述预定亮度范围内。
在一些实施例中，所述控制方法还包括：判断调节后的显示亮度是否在所述预定亮度范围内、调节后的色坐标的横坐标是否在所述预定横坐标范围内、以及调节后的色坐标的纵坐标是否在所述预定纵坐标范围内；其中，在调节后的显示亮度不在所述预定亮度范围内的情况下，继续调节所述第一电源电压、所述第二电源电压和所述第三电源电压的至少一个，以将所述显示图片信息的显示亮度调节到所述预定亮度范围内；在调节后的色坐标的横坐标不在所述预定横坐标范围内的情况下，继续调节所述第二电源电压，以将所述显示图片信息的色坐标的横坐标调节到所述预定横坐标范围内；在调节后的色坐标的纵坐标不在所述预定纵坐标范围内的情况下，继续调节所述第一电源电压和所述第三电源电压的至少一个，以将所述显示图片信息的色坐标的纵坐标调节到所述预定纵坐标范围内。
在一些实施例中，根据所述显示图片信息的色坐标的横坐标与所述预定横坐标范围调节所述第二电源电压的步骤包括：在所述显示图片信息的色坐标的横坐标大于所述预定横坐标范围的上限值的情况下，降低所述第二电源电压；在所述显示图片信息 的色坐标的横坐标小于所述预定横坐标范围的下限值的情况下，增加所述第二电源电压。
在一些实施例中，根据所述显示图片信息的色坐标的纵坐标与所述预定纵坐标范围调节所述第一电源电压和所述第三电源电压的至少一个的步骤包括：在所述显示图片信息的色坐标的纵坐标大于所述预定纵坐标范围的上限值的情况下，降低所述第一电源电压和所述第三电源电压的至少一个；在所述显示图片信息的色坐标的纵坐标小于所述预定纵坐标范围的下限值的情况下，增加所述第一电源电压和所述第三电源电压的至少一个。
在一些实施例中，根据所述显示亮度和所述预定亮度范围调节所述第一电源电压、所述第二电源电压和所述第三电源电压的至少一个的步骤包括：在所述显示亮度大于所述预定亮度范围的上限值的情况下，降低所述第一电源电压；在所述显示亮度小于所述预定亮度范围的下限值的情况下，增加所述第二电源电压和所述第三电源电压的至少一个。
在一些实施例中，所述第一电源电压低于所述其他电源电压。
根据本公开实施例的另一个方面，提供了一种用于显示面板的控制电路，所述显示面板包括如前所示的显示基板；所述控制电路包括：第一电压提供单元，被配置为向在所述弯折区中的所述多个第一子像素提供第一电源电压；其他电压提供单元，被配置为向在所述弯折区中的多个与所述第一子像素的发光颜色不同的其他子像素提供其他电源电压。
在一些实施例中，所述多个其他子像素包括多个第二子像素和多个第三子像素，其中，所述第一子像素、所述第二子像素和所述第三子像素为发光颜色不同的子像素；其他电压提供单元包括：第二电压提供单元，被配置为向在所述弯折区中的所述多个第二子像素提供第二电源电压；以及第三电压提供单元，被配置为向在所述弯折区中的所述多个第三子像素提供第三电源电压。
在一些实施例中，所述多个其他子像素包括多个第二子像素和多个第三子像素，其中，所述第一子像素、所述第二子像素和所述第三子像素为发光颜色不同的子像素；所述其他电压提供单元包括：第四电压提供单元，被配置为向在所述弯折区中的所述多个第二子像素和所述多个第三子像素提供第四电源电压。
在一些实施例中，所述控制电路还包括：获取单元，被配置为获得所述显示面板的弯折区的显示图片信息和与所述显示图片信息对应的标准图片信息，其中，所述显 示图片信息包括色坐标的横坐标和纵坐标，所述标准图片信息包括色坐标的预定横坐标范围和预定纵坐标范围；以及调节单元，被配置为根据所述显示图片信息的色坐标的横坐标和纵坐标、以及所述预定横坐标范围和所述预定纵坐标范围，调节所述第一电源电压、所述第二电源电压和所述第三电源电压的至少一个，以使得所述显示图片信息中的色坐标的横坐标在所述预定横坐标范围内，以及所述显示图片信息中的色坐标的纵坐标在所述预定纵坐标范围内。
通过以下参照附图对本公开的示例性实施例的详细描述，本公开的其它特征及其优点将会变得清楚。
附图说明
构成说明书的一部分的附图描述了本公开的实施例，并且连同说明书一起用于解释本公开的原理。
参照附图，根据下面的详细描述，可以更加清楚地理解本公开，其中：
图1是示出根据本公开一个实施例的显示面板的截面示意图；
图2是示出根据本公开一个实施例的显示基板的子像素排布的示意图；
图3是示出根据本公开另一个实施例的显示基板的子像素排布的示意图；
图4是示出根据本公开一个实施例的用于显示面板的控制方法的流程图；
图5是示出根据本公开另一个实施例的用于显示面板的控制方法的流程图；
图6是示出根据本公开一个实施例的用于显示面板的控制电路的结构框图；
图7是示出根据本公开另一个实施例的用于显示面板的控制电路的结构框图；
图8是示出根据本公开另一个实施例的用于显示面板的控制电路的结构框图；
图9是示出在显示面板进行显示的过程中在显示面板的边缘处出现亮线的实验结果示意图；
图10是示出在显示面板进行显示绿色画面的过程中在显示面板的边缘处出现亮线的实验结果示意图。
应当明白，附图中所示出的各个部分的尺寸并不必须按照实际的比例关系绘制。此外，相同或类似的参考标号表示相同或类似的构件。
具体实施方式
现在将参照附图来详细描述本公开的各种示例性实施例。对示例性实施例的描述 仅仅是说明性的，决不作为对本公开及其应用或使用的任何限制。本公开可以以许多不同的形式实现，不限于这里所述的实施例。提供这些实施例是为了使本公开透彻且完整，并且向本领域技术人员充分表达本公开的范围。应注意到：除非另外具体说明，否则在这些实施例中阐述的部件和步骤的相对布置、材料的组分、数字表达式和数值应被解释为仅仅是示例性的，而不是作为限制。
本公开中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的部分。“包括”或者“包含”等类似的词语意指在该词前的要素涵盖在该词后列举的要素，并不排除也涵盖其他要素的可能。“上”、“下”、“左”、“右”等仅用于表示相对位置关系，当被描述对象的绝对位置改变后，则该相对位置关系也可能相应地改变。
在本公开中，当描述到特定器件位于第一器件和第二器件之间时，在该特定器件与第一器件或第二器件之间可以存在居间器件，也可以不存在居间器件。当描述到特定器件连接其它器件时，该特定器件可以与所述其它器件直接连接而不具有居间器件，也可以不与所述其它器件直接连接而具有居间器件。
本公开使用的所有术语(包括技术术语或者科学术语)与本公开所属领域的普通技术人员理解的含义相同，除非另外特别定义。还应当理解，在诸如通用字典中定义的术语应当被解释为具有与它们在相关技术的上下文中的含义相一致的含义，而不应用理想化或极度形式化的意义来解释，除非这里明确地这样定义。
对于相关领域普通技术人员已知的技术、方法和设备可能不作详细讨论，但在适当情况下，所述技术、方法和设备应当被视为说明书的一部分。
图1是示出根据本公开一个实施例的显示面板的截面示意图。该图1示出了利用直角CG贴合工艺制备的显示面板。
如图1所示，该显示面板可以包括弯折区110。在一些实施例中，如图1所示，该显示面板还可以包括平坦区120。例如，可以在平坦区120的两侧分别设置该弯折区110。通过设置该弯折区，可以实现显示面板的边缘显示，增加屏占比。
另外，在一些实施例中，可以在应用该显示面板的显示装置(例如手机)中设置系统软件来实现侧边触控，从而可以取消设置在显示装置侧面的电源(Power)按键和音量调节按键等。
本公开的发明人发现，在柔性OLED显示屏的显示过程中，在直角CG贴合状态下，显示屏可能会出现边缘亮线问题。例如，该边缘亮线的颜色为黄色，可以称为黄 边现象。例如，如图9所示，在显示面板显示例如纯白色画面1102的过程中，在显示面板的弯折区110处出现了亮线1101。
本公开的发明人研究发现，在对比纯红色、纯绿色和纯蓝色这三种颜色画面的情况下，发现纯绿色图片容易出现亮边问题。例如，如图10所示，在显示面板显示绿色画面1104的过程中，在弯折区110处出现了亮线1103。此外，本公开的发明人还发现，在将显示纯绿色图片的亮度降低的情况下，可以减轻黄边现象。因此，显示屏的边缘发黄可能是由于绿色像素在CG直角边缘的光的色散造成的。
鉴于上述问题，本公开的发明人提出了一种用于显示面板的显示基板的子像素排布，从而来减轻上述边缘亮线问题。下面结合附图详细描述根据本公开一些实施例的显示基板的边缘子像素的排布情况。
图2是示出根据本公开一个实施例的显示基板的子像素排布的示意图。该图2示意性地示出了弯折区110、平坦区120和弯曲开始位置130。
如图2所示，该显示基板可以包括弯折区110。该弯折区110可以包括多个第一子像素211和多个与该第一子像素211的发光颜色不同的其他子像素。该多个第一子像素211与同一个用于提供第一电源电压ELVDD1(这里，ELVDD即为Emission Layer Voltage Drain Drain，发光层电源电压)的第一电源电压端231电连接。该其他子像素与不同于第一电源电压端231的其他电源电压端电连接。
在一些实施例中，如图2所示，该多个其他子像素可以包括多个第二子像素212和多个第三子像素213。该第一子像素211、该第二子像素212和该第三子像素213为发光颜色不同的子像素。例如，该第一子像素211为绿色子像素G，该第二子像素212为红色子像素R，该第三子像素213为蓝色子像素B。
在上述实施例中，通过将弯折区的多个第一子像素与同一个第一电源电压端电连接，其他子像素与其他电源电压端电连接，从而可以调节施加到第一子像素上的电源电压的大小。例如，可以降低施加到绿色子像素(即第一子像素)上的第一电源电压，从而减轻显示屏的边缘亮线问题。另外，通过调节施加到其他颜色(例如红色或蓝色)的子像素上的电源电压，也可以在一定程度上减轻边缘亮线问题。
在一些实施例中，第一电源电压ELVDD1低于其他电源电压端所提供的电源电压。这样可以在一定程度上减轻显示屏的边缘亮线问题。
在一些实施例中，如图2所示，其他电源电压端可以包括用于提供第二电源电压ELVDD2的第二电源电压端232和用于提供第三电源电压ELVDD3的第三电源电压 端233。在弯折区110中，该多个第二子像素212与同一个第二电源电压端232电连接，该多个第三子像素213与同一个第三电源电压端233电连接。例如，第一电源电压ELVDD1低于第二电源电压ELVDD2，或者第一电源电压ELVDD1低于第三电源电压ELVDD3。
在该实施例中，通过使得第一电源电压低于第二电源电压，或者第一电源电压低于第三电源电压。这样可以使得绿色子像素G(即第一子像素)的发光亮度小于绿色子像素的常规设定值的发光亮度，这样可以降低绿色子像素的亮度比例，从而减轻边缘亮线问题。
在一些实施例中，可以分别调节施加到在弯折区内的各个颜色的子像素上的电源电压(后面将详细描述)。这样除了可以减轻边缘亮线问题之外，还可以使得所显示的图片信息(例如亮度、色坐标等信息)尽量符合标准图片信息的相关范围(例如预定亮度范围、色坐标的预定横坐标范围和预定纵坐标范围等)，从而提高显示效果。
在一些实施例中，如图2所示，在弯折区110内，处于同一子像素列的子像素为发光颜色相同的子像素。例如，在弯折区110中，处于同一个子像素列的子像素可以均为红色子像素R，或者均为绿色子像素G，或者均为蓝色子像素B。这样有利于使得具有相同发光颜色的子像素与相应的同一个电源电压端电连接。例如，所有的绿色子像素(即第一子像素)与第一电源电压端231电连接，所有的红色子像素(即第二子像素)与第二电源电压端232电连接，所有的蓝色子像素(即第三子像素)与第三电源电压端233电连接。这样方便调节施加到不同颜色的子像素的电源电压，从而减轻边缘亮线问题，提高显示效果。
在一些实施例中，如图2所示，在弯折区110内，分别在相邻的两个子像素列中的子像素的发光颜色不同。例如，在弯折区110内，一个子像素列为绿色子像素列，与该绿色子像素列相邻的子像素列可以均为红色子像素列(例如在该绿色子像素列左侧且相邻的子像素列)或者可以均为蓝色子像素列(例如在该绿色子像素右侧且相邻的子像素列)。这样可以防止具有相同发光颜色的两个子像素列相邻，从而提高显示效果。
在一些实施例中，如图2所示，弯折区110可以包括多个第一类型像素21。每个第一类型像素21可以包括处于同一子像素行的第一子像素211(例如绿色子像素G)、第二子像素212(例如红色子像素R)和第三子像素213(例如蓝色子像素B)。在每个第一类型像素21中，该第二子像素212和该第三子像素213分别与该第一子像素 211相邻，且该第一子像素211在该第二子像素212和该第三子像素213之间。
在一些实施例中，如图2所示，显示面板还可以包括与弯折区110相邻的平坦区120。该平坦区120可以包括多个第二类型像素22。每个第二类型像素22可以包括处于同一子像素行的两个第一子像素211(例如绿色子像素G)、一个第二子像素212(例如红色子像素R)和一个第三子像素213(例如蓝色子像素B)。在第二类型像素22中，该第二子像素212和该第三子像素213被该两个第一子像素212中的一个第二子像素间隔开。该两个第一子像素211被该第二子像素212或该第三子像素213间隔开。在该实施例中，在平坦区中，每个像素的子像素按照RGBG(或者BGRG)的方式排布，可以提高显示效果。
在一些实施例中，如图2所示，在平坦区120中的所有第一子像素211、第二子像素212和第三子像素213与同一个用于提供第五电源电压ELVDD5的第五电源电压端235电连接。在该实施例中，将平坦区中的所有子像素与同一个电源电压端电连接，可以简化平坦区的电路复杂度。
在上面的实施例中，弯折区的子像素排布方式与平坦区的子像素排布方式不同。例如，弯折区采用了RGB的子像素排布方式，而平坦区采用了RGBG的子像素排布方式。
在另一些实施例中，弯折区的子像素排布方式可以与平坦区的子像素排布方式相同。例如，弯折区也可以采用RGBG的子像素排布方式，即弯折区可以采用与图2中的平坦区相同或相似的子像素排布方式，并且将弯折区中的所有绿色子像素(即第一子像素)与同一个第一电源电压端电连接，将弯折区中的所有红色子像素(即第二子像素)与同一个第二电源电压端电连接，以及将弯折区中的所有蓝色子像素(即第三子像素)与同一个第三电源电压端电连接。又例如，平坦区也可以采用RGB的子像素排布方式，即平坦区可以采用与图2中的弯折区相同或相似的子像素排布方式。
图3是示出根据本公开另一个实施例的显示基板的子像素排布的示意图。例如，如图3所示，上述其他电源电压端可以包括用于提供第四电源电压ELVDD4的第四电源电压端。与图2所示的显示基板相比，图3所示的显示基板的不同之处在于：在弯折区110中，多个第二子像素212(例如红色子像素R)和多个第三子像素213(例如蓝色子像素B)与该第四电源电压端234电连接，即与同一个电源电压端电连接。例如，第一电源电压ELVDD1低于该第四电源电压ELVDD4。在该实施例中，使得施加到绿色子像素上的电源电压低于施加到红色子像素和蓝色子像素上的电源电压，可 以减轻边缘亮线问题。此外，该实施例可以减少线路数量。
在本公开的一些实施例中，还可以提供一种显示装置。该显示装置可以包括如前所述的显示基板(例如如图2或图3所示的显示基板)。例如，该显示装置可以为：显示面板、显示屏、显示器、手机、平板电脑、笔记本电脑、电视机或导航仪等任何具有显示功能的产品或部件。
在本公开的一些实施例中，还可以提供一种用于显示面板的控制方法。该显示面板可以包括如前所述的显示基板。该控制方法可以包括：向在弯折区中的多个第一子像素提供第一电源电压，向在弯折区中的多个与第一子像素的发光颜色不同的其他子像素提供其他电源电压。例如，该第一电源电压低于其他电源电压。该方法可以降低边缘亮线问题。
在一些实施例中，该多个其他子像素可以包括多个第二子像素和多个第三子像素。该第一子像素、该第二子像素和该第三子像素为发光颜色不同的子像素。例如，第一子像素为绿色子像素，第二子像素为红色子像素，第三子像素为蓝色子像素。
在一些实施例中，上述提供其他电源电压的步骤可以包括：向在弯折区中的该多个第二子像素提供第二电源电压，并向在该弯折区中的该多个第三子像素提供第三电源电压。
例如，该显示面板可以包括如图2所示的显示基板。在该实施例的控制方法中，向在弯折区中的多个第一子像素(例如绿色子像素)提供第一电源电压，向在该弯折区中的多个第二子像素(例如红色子像素)提供第二电源电压，并向在该弯折区中的多个第三子像素(例如蓝色子像素)提供第三电源电压。例如，该第一电源电压低于该第二电源电压，或者该第一电源电压低于该第三电源电压。在该实施例中，通过使得施加到绿色子像素上的电源电压低于施加到红色子像素或蓝色子像素上的电源电压，从而可以降低边缘亮线问题。
在另一些实施例中，上述提供其他电源电压的步骤可以包括：向在弯折区中的该多个第二子像素和该多个第三子像素提供第四电源电压。
例如，该显示面板可以包括如图3所示的显示基板。在该实施例的控制方法中，向在弯折区中的多个第一子像素(例如绿色子像素)提供第一电源电压，并向在该弯折区中的多个第二子像素(例如红色子像素)和多个第三子像素(例如蓝色子像素)提供第四电源电压。例如，该第一电源电压低于该第四电源电压。在该实施例中，通过使得施加到绿色子像素上的电源电压低于施加到红色子像素和蓝色子像素上的电 源电压，从而可以降低边缘亮线问题。
在一些实施例中，通过上述实施例的控制方法，可以使得绿色子像素G(即第一子像素)的发光亮度小于该绿色子像素的常规设定值的发光亮度，这样可以降低绿色子像素的亮度比例，从而减轻边缘亮线问题。
在一些实施例中，在减轻边缘亮线问题的情况下，还可以采用一些用于显示面板的控制方法来尽量使得显示图片信息符合标准图片信息的相关范围，以尽量提高显示效果。例如，上述控制方法还可以包括如图4所示的步骤。
下面结合图4或图5详细描述根据本公开一些实施例的用于显示面板的控制方法。
图4是示出根据本公开一个实施例的用于显示面板的控制方法的流程图。例如，该显示面板可以包括如图2所示的显示基板。如图4所示，该控制方法可以包括步骤S402至S404。
在步骤S402，获得显示面板的弯折区的显示图片信息和与该显示图片信息对应的标准图片信息。该显示图片信息包括色坐标的横坐标和纵坐标，该标准图片信息包括色坐标的预定横坐标范围和预定纵坐标范围。例如，该色坐标可以是白点色坐标。这里，白点色坐标是指红色、绿色和蓝色三种子像素混色出来的白色图片的色坐标值。
在一些实施例中，可以利用光学测试设备对显示图片进行拍照来采集反映显示图片信息的光学数据，从而获得弯折区的显示图片信息。另外，还可以获得已有的与该显示图片信息对应的标准图片信息(或者称为原始图片信息)。
在步骤S404，根据显示图片信息的色坐标的横坐标和纵坐标、以及预定横坐标范围和预定纵坐标范围，调节第一电源电压、第二电源电压和第三电源电压的至少一个，以使得显示图片信息中的色坐标的横坐标在该预定横坐标范围内，以及显示图片信息中的色坐标的纵坐标在该预定纵坐标范围内。
在一些实施例中，可以将弯折区的显示图片信息与标准图片信息进行比对。例如，将弯折区的显示图片信息的色坐标的横坐标与预定横坐标范围进行比对，以及将弯折区的显示图片信息的色坐标的纵坐标与预定纵坐标范围进行比对。这样可以获得显示图片信息与标准图片信息的差异，从而根据该差异调节第一电源电压、第二电源电压和第三电源电压的至少一个，以使得显示图片信息中的色坐标的横坐标在该预定横坐标范围内，以及显示图片信息中的色坐标的纵坐标在该预定纵坐标范围内。
例如，可以获得预定横坐标范围的上限值与下限值的平均值并将该平均值作为横坐标中间值；然后计算显示图片信息中的色坐标的横坐标与该横坐标中间值的差值。 根据该差值可以大体看出该色坐标的横坐标偏大还是偏小。另外，可以将色坐标的横坐标与预定横坐标范围的上限值、下限值进行比较，以确定色坐标的横坐标是否在预定横坐标范围内。在另一些实施例中，也可以不计算色坐标的横坐标与横坐标中间值的差值。
又例如，可以获得预定纵坐标范围的上限值与下限值的平均值并将该平均值作为纵坐标中间值；然后计算显示图片信息中的色坐标的纵坐标与该纵坐标中间值的差值。根据该差值可以大体看出该色坐标的纵坐标偏大还是偏小。另外，可以将色坐标的纵坐标与预定纵坐标范围的上限值、下限值进行比较，以确定色坐标的纵坐标是否在预定纵坐标范围内。在另一些实施例中，也可以不计算色坐标的纵坐标与纵坐标中间值的差值。
在一些实施例中，调节第一电源电压、第二电源电压和第三电源电压的至少一个的步骤可以包括：根据显示图片信息的色坐标的横坐标与预定横坐标范围调节第二电源电压，以使得显示图片信息的色坐标的横坐标在该预定横坐标范围内。本公开的发明人发现，色坐标的横坐标主要受红色子像素(即第二子像素)的影响，因此可以通过调节施加到红色子像素上的第二电源电压来调节色坐标的横坐标，以便使得显示图片信息的色坐标的横坐标在该预定横坐标范围内。
例如，上述调节第二电源电压的步骤可以包括：在显示图片信息的色坐标的横坐标大于预定横坐标范围的上限值的情况下，降低该第二电源电压；在显示图片信息的色坐标的横坐标小于该预定横坐标范围的下限值的情况下，增加该第二电源电压。在该实施例中，通过降低第二电源电压来降低红色子像素的亮度，或者通过增加第二电源电压来增加红色子像素的亮度，从而调节显示图片信息的色坐标的横坐标。
在一些实施例中，调节第一电源电压、第二电源电压和第三电源电压的至少一个的步骤还可以包括：根据显示图片信息的色坐标的纵坐标与预定纵坐标范围调节第一电源电压和第三电源电压的至少一个，以使得显示图片信息的色坐标的纵坐标在该预定纵坐标范围内。本公开的发明人发现，色坐标的纵坐标主要受绿色子像素(即第一子像素)和蓝色子像素(即第三子像素)的影响，因此可以通过调节施加到绿色子像素上的第一电源电压和施加到蓝色子像素上的第三电源电压的至少一个，来调节色坐标的纵坐标，以便显示图片信息的色坐标的纵坐标在预定纵坐标范围内。
例如，上述调节第一电源电压和第三电源电压的至少一个的步骤可以包括：在显示图片信息的色坐标的纵坐标大于预定纵坐标范围的上限值的情况下，降低该第一电 源电压和该第三电源电压的至少一个；在显示图片信息的色坐标的纵坐标小于预定纵坐标范围的下限值的情况下，增加该第一电源电压和该第三电源电压的至少一个。在该实施例中，通过降低该第一电源电压和该第三电源电压的至少一个来降低绿色子像素和蓝色子像素的至少一个的亮度，通过增加该第一电源电压和该第三电源电压的至少一个来增加绿色子像素和蓝色子像素的至少一个的亮度，从而调节显示图片信息的色坐标的纵坐标。
至此，提供了根据本公开一些实施例的用于显示面板的控制方法。在该控制方法中，获得显示面板的显示图片信息和与显示图片信息对应的标准图片信息。该显示图片信息包括色坐标的横坐标和纵坐标。该标准图片信息包括色坐标的预定横坐标范围和预定纵坐标范围。根据显示图片信息的色坐标的横坐标和纵坐标、以及预定横坐标范围和预定纵坐标范围，调节第一电源电压、第二电源电压和第三电源电压的至少一个，以使得显示图片信息中的色坐标的横坐标在预定横坐标范围内，以及显示图片信息中的色坐标的纵坐标在预定纵坐标范围内。这样可以使得显示图片信息符合标准图片信息的相关预定范围。这样可以在降低绿色子像素的亮度(或者亮度比例)的情况下，不影响图片的显示。因此用于上述显示面板的控制方法既可以减轻边缘亮线问题，又可以不影响图片正常显示，从而提高显示效果。
在一些实施例中，显示图片信息还可以包括显示亮度，标准图片信息还可以包括预定亮度范围。
例如，可以获得预定亮度范围的上限值与下限值的平均值并将该平均值作为亮度中间值；然后计算显示图片信息中的显示亮度与该亮度中间值的差值。根据该差值可以大体看出该显示亮度偏大还是偏小。另外，可以将亮度与预定亮度范围的上限值、下限值进行比较，以确定显示亮度是否在预定亮度范围内。在另一些实施例中，也可以不计算显示亮度与亮度中间值的差值。
在一些实施例中，在根据显示图片信息的色坐标的横坐标与预定横坐标范围调节第二电源电压的步骤之前，所述控制方法还可以包括：根据显示亮度和预定亮度范围调节第一电源电压、第二电源电压和第三电源电压的至少一个，以使得显示亮度在预定亮度范围内。这样可以使得显示图片信息的亮度符合预定亮度范围，从而提高显示效果。
在一些实施例中，根据显示亮度和预定亮度范围调节第一电源电压、第二电源电压和第三电源电压的至少一个的步骤可以包括：在显示亮度大于预定亮度范围的上限 值的情况下，降低第一电源电压；在显示亮度小于预定亮度范围的下限值的情况下，增加第二电源电压和第三电源电压的至少一个。在该实施例中，在需要降低显示亮度的情况下降低施加到绿色子像素上的第一电源电压，而在需要增加显示亮度的情况下增加施加到红色子像素上的第二电源电压和施加到蓝色子像素上的第三电源电压的至少一个。这样可以使得弯折区的绿色子像素的发光亮度尽量降低，从而减轻边缘亮线问题。
例如，在255灰阶图片下的预定亮度范围是450nit(尼特)±3％，即[436.5，463.5]，而采集当前屏幕的边缘区域的实际亮度为470nit。该实际亮度大于上限值463.5nit。为了改善边缘亮线问题，并且将显示亮度降低到预定亮度范围内，则可以通过调低施加到绿色子像素的第一电源电压来实现。又例如，如果当前屏幕的边缘区域的实际亮度为430nit。该实际亮度小于下限值436.5nit，则可以通过调高施加到红色子像素上的第二电源电压和施加到蓝色子像素上的第三电源电压的至少一个来增大显示亮度。
在一些实施例中，所述控制方法还可以包括：判断调节后的显示亮度是否在预定亮度范围内、调节后的色坐标的横坐标是否在预定横坐标范围内、以及调节后的色坐标的纵坐标是否在预定纵坐标范围内。在调节后的显示亮度不在预定亮度范围内的情况下，继续调节第一电源电压、第二电源电压和第三电源电压的至少一个，以将显示图片信息的显示亮度调节到预定亮度范围内。在调节后的色坐标的横坐标不在预定横坐标范围内的情况下，继续调节第二电源电压，以将显示图片信息的色坐标的横坐标调节到预定横坐标范围内。在调节后的色坐标的纵坐标不在预定纵坐标范围内的情况下，继续调节第一电源电压和第三电源电压的至少一个，以将显示图片信息的色坐标的纵坐标调节到预定纵坐标范围内。通过这样的调节，可以使得显示图片信息尽量符合标准图片信息，从而在降低绿色子像素的亮度(或者亮度比例)的情况下，尽量不影响图片的显示效果。
图5是示出根据本公开另一个实施例的用于显示面板的控制方法的流程图。例如，该显示面板可以包括如图2所示的显示基板。如图5所示，该控制方法可以包括步骤S502至S520。
在步骤S502，获得显示面板的弯折区的显示图片信息和与该显示图片信息对应的标准图片信息。该显示图片信息包括显示亮度、色坐标的横坐标和纵坐标。该标准图片信息包括预定亮度范围、色坐标的预定横坐标范围和预定纵坐标范围。
在步骤S504，判断显示图片信息的显示亮度是否在预定亮度范围内。如果是，则 过程进入步骤S508；否则过程进入步骤S506。
在步骤S506，根据显示亮度和预定亮度范围调节第一电源电压、第二电源电压和第三电源电压的至少一个，以使得显示亮度在预定亮度范围内。
例如，在显示亮度大于预定亮度范围的上限值的情况下，降低第一电源电压；在显示亮度小于预定亮度范围的下限值的情况下，增加第二电源电压和第三电源电压的至少一个。
在步骤S508，判断显示图片信息的色坐标的横坐标是否在预定横坐标范围内。如果是，则过程进入步骤S512；否则过程进入步骤S510。
在步骤S510，根据显示图片信息的色坐标的横坐标与预定横坐标范围调节第二电源电压，以使得显示图片信息的色坐标的横坐标在该预定横坐标范围内。
例如，在显示图片信息的色坐标的横坐标大于预定横坐标范围的上限值的情况下，降低该第二电源电压；在显示图片信息的色坐标的横坐标小于该预定横坐标范围的下限值的情况下，增加该第二电源电压。
在步骤S512，判断显示图片信息的色坐标的纵坐标是否在预定纵坐标范围内。如果是，则过程进入步骤S516；否则过程进入步骤S514。
在步骤S514，根据显示图片信息的色坐标的纵坐标与预定纵坐标范围调节第一电源电压和第三电源电压的至少一个，以使得显示图片信息的色坐标的纵坐标在该预定纵坐标范围内。
例如，在显示图片信息的色坐标的纵坐标大于预定纵坐标范围的上限值的情况下，降低该第一电源电压和该第三电源电压的至少一个；在显示图片信息的色坐标的纵坐标小于预定纵坐标范围的下限值的情况下，增加该第一电源电压和该第三电源电压的至少一个。
在经过上述调节过程中，显示图片信息的显示亮度和色坐标可能出现变化。例如，为了调节色坐标的纵坐标而需要调节第一电源电压和第三电源电压的至少一个，可能导致已经调节好的显示亮度又不在预定亮度范围内。因此，可以继续判断显示亮度和色坐标等是否在各自相应的预定范围内。
在步骤S516，判断调节后的显示亮度是否在预定亮度范围内。如果是，则过程进入步骤S518；否则过程返回到步骤S506，即继续调节第一电源电压、第二电源电压和第三电源电压的至少一个，以将显示图片信息的显示亮度调节到预定亮度范围内。
在步骤S518，判断调节后的色坐标的横坐标是否在预定横坐标范围内。如果是， 则过程进入步骤S520；否则过程返回步骤S510，即继续调节第二电源电压，以将显示图片信息的色坐标的横坐标调节到预定横坐标范围内。
在步骤S520，判断调节后的色坐标的纵坐标是否在预定纵坐标范围内。如果是，则过程结束；否则过程返回步骤S514，即继续调节第一电源电压和第三电源电压的至少一个，以将显示图片信息的色坐标的纵坐标调节到预定纵坐标范围内。
在一些实施例中，可以循环执行步骤S516至S520，直到使得显示亮度和色坐标等都在各自相应的预定范围内。
至此，提供了根据本公开一些实施例的用于显示面板的控制方法。通过该控制方法，可以使得显示图片信息符合标准图片信息的相关预定范围。这样可以在降低绿色子像素的亮度(或者亮度比例)的情况下，不影响图片的显示。因此用于上述显示面板的控制方法既可以减轻边缘亮线问题，又可以不影响图片正常显示，从而提高显示效果。
在一些实施例中，可以增大弯折区的红色子像素或蓝色子像素的亮度，抑制绿色子像素的亮度，从而减轻边缘黄边问题。另外，利用上述控制方法可以进一步改善显示面板边缘发黄的问题，提升在正视角下的画面品质。
图6是示出根据本公开一个实施例的用于显示面板的控制电路的结构框图。为了描述的方便，图6中示出了显示面板610。例如，该显示面板包括如前所述的显示基板。
在一些实施例中，如图6所示，该控制电路600可以包括第一电压提供单元601和其他电压提供单元。
该第一电压提供单元601被配置为向在弯折区中的多个第一子像素提供第一电源电压。
该其他电压提供单元被配置为向在该弯折区中的多个与第一子像素的发光颜色不同的其他子像素提供其他电源电压。例如，该多个其他子像素可以包括多个第二子像素和多个第三子像素。该第一子像素、该第二子像素和该第三子像素为发光颜色不同的子像素。第一电源电压低于第二电源电压，或者第一电源电压低于第三电源电压。
在一些实施例中，如图6所示，该其他电压提供单元可以包括第二电压提供单元602和第三电压提供单元603。该第二电压提供单元602被配置为向在弯折区中的多个第二子像素提供第二电源电压。该第三电压提供单元603被配置为向在弯折区中的多个第三子像素提供第三电源电压。
在上述实施例的控制电路中，通过第一电压提供单元向在弯折区中的多个第一子像素提供第一电源电压，以及通过其他电压提供单元向在该弯折区中的多个与第一子像素的发光颜色不同的其他子像素提供其他电源电压。例如，第一电源电压低于其他电源电压端所提供的电源电压。这样可以在一定程度上减轻显示屏的边缘亮线问题。
图7是示出根据本公开另一个实施例的用于显示面板的控制电路的结构框图。如图7所示，该控制电路700可以包括第一电压提供单元601和其他电压提供单元。
在一些实施例中，如图7所示，该其他电压提供单元可以包括第四电压提供单元704。该第四电压提供单元704被配置为向在弯折区中的多个第二子像素和多个第三子像素提供第四电源电压。例如，第一电源电压低于该第四电源电压。该实施例也可以在一定程度上减轻显示屏的边缘亮线问题。
图8是示出根据本公开另一个实施例的用于显示面板的控制电路的结构框图。如图8所示，该控制电路800可以包括第一电压提供单元601、第二电压提供单元602和第三电压提供单元603。另外，图8中还示出了显示面板610。
在一些实施例中，如图8所示，该控制电路800还可以包括获取单元805和调节单元806。
该获取单元805被配置为获得显示面板610的弯折区的显示图片信息和与该显示图片信息对应的标准图片信息。该显示图片信息包括色坐标的横坐标和纵坐标。该标准图片信息包括色坐标的预定横坐标范围和预定纵坐标范围。
该调节单元806被配置为根据该显示图片信息的色坐标的横坐标和纵坐标、以及该预定横坐标范围和该预定纵坐标范围，调节第一电源电压、第二电源电压和第三电源电压的至少一个，以使得该显示图片信息中的色坐标的横坐标在该预定横坐标范围内，以及该显示图片信息中的色坐标的纵坐标在该预定纵坐标范围内。
上述控制电路可以使得显示图片信息中的色坐标的横坐标在预定横坐标范围内，以及显示图片信息中的色坐标的纵坐标在预定纵坐标范围内。这样既可以减轻边缘亮线问题，又可以不影响图片正常显示，从而提高显示效果。
在一些实施例中，该调节单元806可以被配置为根据显示图片信息的色坐标的横坐标与预定横坐标范围调节第二电源电压，以使得该显示图片信息的色坐标的横坐标在所该预定横坐标范围内。该调节单元806还可以被配置为根据显示图片信息的色坐标的纵坐标与预定纵坐标范围调节第一电源电压和第三电源电压的至少一个，以使得该显示图片信息的色坐标的纵坐标在该预定纵坐标范围内。
在一些实施例中，显示图片信息还可以包括显示亮度，标准图片信息还可以包括预定亮度范围。该调节单元806还可以被配置为根据显示亮度和预定亮度范围调节第一电源电压、第二电源电压和第三电源电压的至少一个，以使得显示亮度在预定亮度范围内。
在一些实施例中，该调节单元806还可以被配置为判断调节后的显示亮度是否在预定亮度范围内、调节后的色坐标的横坐标是否在预定横坐标范围内、以及调节后的色坐标的纵坐标是否在预定纵坐标范围内。该调节单元806还可以被配置为在调节后的显示亮度不在该预定亮度范围内的情况下，继续调节第一电源电压、第二电源电压和第三电源电压的至少一个，以将显示图片信息的显示亮度调节到该预定亮度范围内。该调节单元806还可以被配置为在调节后的色坐标的横坐标不在该预定横坐标范围内的情况下，继续调节第二电源电压，以将该显示图片信息的色坐标的横坐标调节到该预定横坐标范围内。该调节单元806还可以被配置为在调节后的色坐标的纵坐标不在该预定纵坐标范围内的情况下，继续调节第一电源电压和第三电源电压的至少一个，以将该显示图片信息的色坐标的纵坐标调节到该预定纵坐标范围内。
至此，已经详细描述了本公开的各实施例。为了避免遮蔽本公开的构思，没有描述本领域所公知的一些细节。本领域技术人员根据上面的描述，完全可以明白如何实施这里公开的技术方案。
虽然已经通过示例对本公开的一些特定实施例进行了详细说明，但是本领域的技术人员应该理解，以上示例仅是为了进行说明，而不是为了限制本公开的范围。本领域的技术人员应该理解，可在不脱离本公开的范围和精神的情况下，对以上实施例进行修改或者对部分技术特征进行等同替换。本公开的范围由所附权利要求来限定。

Claims (28)

  1. 一种显示基板，包括：
    弯折区，所述弯折区包括多个第一子像素和多个与所述第一子像素的发光颜色不同的其他子像素；
    所述多个第一子像素与同一个用于提供第一电源电压的第一电源电压端电连接；所述其他子像素与不同于所述第一电源电压端的其他电源电压端电连接。
  2. 根据权利要求1所述的显示基板，其中，
    所述多个其他子像素包括多个第二子像素和多个第三子像素，其中，所述第一子像素、所述第二子像素和所述第三子像素为发光颜色不同的子像素。
  3. 根据权利要求2所述的显示基板，其中，
    所述其他电源电压端包括用于提供第二电源电压的第二电源电压端和用于提供第三电源电压的第三电源电压端；
    在所述弯折区中，所述多个第二子像素与同一个所述第二电源电压端电连接，所述多个第三子像素与同一个所述第三电源电压端电连接。
  4. 根据权利要求2所述的显示基板，其中，
    所述其他电源电压端包括用于提供第四电源电压的第四电源电压端；
    在所述弯折区中，所述多个第二子像素和所述多个第三子像素与所述第四电源电压端电连接。
  5. 根据权利要求2所述的显示基板，其中，
    在所述弯折区内，处于同一子像素列的子像素为发光颜色相同的子像素。
  6. 根据权利要求2所述的显示基板，其中，
    在所述弯折区内，分别在相邻的两个子像素列中的子像素的发光颜色不同。
  7. 根据权利要求2所述的显示基板，其中，
    所述弯折区包括多个第一类型像素，每个第一类型像素包括处于同一子像素行的所述第一子像素、所述第二子像素和所述第三子像素，其中，在每个第一类型像素中，所述第二子像素和所述第三子像素分别与所述第一子像素相邻，且所述第一子像素在所述第二子像素和所述第三子像素之间。
  8. 根据权利要求2所述的显示基板，还包括：
    与所述弯折区相邻的平坦区，所述平坦区包括多个第二类型像素，每个第二类型像素包括处于同一子像素行的两个第一子像素、一个第二子像素和一个第三子像素，其中，在所述第二类型像素中，该第二子像素和该第三子像素被所述两个第一子像素中的一个第一子像素间隔开，所述两个第一子像素被该第二子像素或该第三子像素间隔开。
  9. 根据权利要求8所述的显示基板，其中，
    在所述平坦区中的所有第一子像素、第二子像素和第三子像素与同一个用于提供第五电源电压的第五电源电压端电连接。
  10. 根据权利要求2至9任意一项所述的显示基板，其中，
    所述第一子像素为绿色子像素，所述第二子像素为红色子像素，所述第三子像素为蓝色子像素。
  11. 根据权利要求10所述的显示基板，其中，
    所述第一电源电压低于所述其他电源电压端所提供的电源电压。
  12. 一种显示装置，包括：如权利要求1至11任意一项所述的显示基板。
  13. 一种用于显示面板的控制方法，所述显示面板包括如权利要求1所示的显示基板；所述控制方法包括：
    向在所述弯折区中的所述多个第一子像素提供第一电源电压，向在所述弯折区中的多个与所述第一子像素的发光颜色不同的其他子像素提供其他电源电压。
  14. 根据权利要求13所述的控制方法，其中，所述多个其他子像素包括多个第二子像素和多个第三子像素，其中，所述第一子像素、所述第二子像素和所述第三子像素为发光颜色不同的子像素；
    提供其他电源电压的步骤包括：
    向在所述弯折区中的所述多个第二子像素提供第二电源电压，并向在所述弯折区中的所述多个第三子像素提供第三电源电压。
  15. 根据权利要求13所述的控制方法，其中，所述多个其他子像素包括多个第二子像素和多个第三子像素，其中，所述第一子像素、所述第二子像素和所述第三子像素为发光颜色不同的子像素；
    提供其他电源电压的步骤包括：
    向在所述弯折区中的所述多个第二子像素和所述多个第三子像素提供第四电源电压。
  16. 根据权利要求14所述的控制方法，还包括：
    获得所述显示面板的弯折区的显示图片信息和与所述显示图片信息对应的标准图片信息，其中，所述显示图片信息包括色坐标的横坐标和纵坐标，所述标准图片信息包括色坐标的预定横坐标范围和预定纵坐标范围；以及
    根据所述显示图片信息的色坐标的横坐标和纵坐标、以及所述预定横坐标范围和所述预定纵坐标范围，调节所述第一电源电压、所述第二电源电压和所述第三电源电压的至少一个，以使得所述显示图片信息中的色坐标的横坐标在所述预定横坐标范围内，以及所述显示图片信息中的色坐标的纵坐标在所述预定纵坐标范围内。
  17. 根据权利要求16所述的控制方法，其中，
    所述第一子像素为绿色子像素，所述第二子像素为红色子像素，所述第三子像素为蓝色子像素。
  18. 根据权利要求17所述的控制方法，其中，
    调节所述第一电源电压、所述第二电源电压和所述第三电源电压的至少一个的步骤包括：
    根据所述显示图片信息的色坐标的横坐标与所述预定横坐标范围调节所述第二电源电压，以使得所述显示图片信息的色坐标的横坐标在所述预定横坐标范围内；以及
    根据所述显示图片信息的色坐标的纵坐标与所述预定纵坐标范围调节所述第一电源电压和所述第三电源电压的至少一个，以使得所述显示图片信息的色坐标的纵坐标在所述预定纵坐标范围内。
  19. 根据权利要求18所述的控制方法，其中，
    所述显示图片信息还包括显示亮度，所述标准图片信息还包括预定亮度范围；
    在根据所述显示图片信息的色坐标的横坐标与所述预定横坐标范围调节所述第二电源电压的步骤之前，所述控制方法还包括：根据所述显示亮度和所述预定亮度范围调节所述第一电源电压、所述第二电源电压和所述第三电源电压的至少一个，以使得所述显示亮度在所述预定亮度范围内。
  20. 根据权利要求19所述的控制方法，还包括：
    判断调节后的显示亮度是否在所述预定亮度范围内、调节后的色坐标的横坐标是否在所述预定横坐标范围内、以及调节后的色坐标的纵坐标是否在所述预定纵坐标范围内；
    其中，在调节后的显示亮度不在所述预定亮度范围内的情况下，继续调节所述第一电源电压、所述第二电源电压和所述第三电源电压的至少一个，以将所述显示图片信息的显示亮度调节到所述预定亮度范围内；
    在调节后的色坐标的横坐标不在所述预定横坐标范围内的情况下，继续调节所述第二电源电压，以将所述显示图片信息的色坐标的横坐标调节到所述预定横坐标范围内；
    在调节后的色坐标的纵坐标不在所述预定纵坐标范围内的情况下，继续调节所述第一电源电压和所述第三电源电压的至少一个，以将所述显示图片信息的色坐标的纵坐标调节到所述预定纵坐标范围内。
  21. 根据权利要求18所述的控制方法，其中，根据所述显示图片信息的色坐标的横坐标与所述预定横坐标范围调节所述第二电源电压的步骤包括：
    在所述显示图片信息的色坐标的横坐标大于所述预定横坐标范围的上限值的情况下，降低所述第二电源电压；
    在所述显示图片信息的色坐标的横坐标小于所述预定横坐标范围的下限值的情况下，增加所述第二电源电压。
  22. 根据权利要求18所述的控制方法，其中，根据所述显示图片信息的色坐标的纵坐标与所述预定纵坐标范围调节所述第一电源电压和所述第三电源电压的至少一个的步骤包括：
    在所述显示图片信息的色坐标的纵坐标大于所述预定纵坐标范围的上限值的情况下，降低所述第一电源电压和所述第三电源电压的至少一个；
    在所述显示图片信息的色坐标的纵坐标小于所述预定纵坐标范围的下限值的情况下，增加所述第一电源电压和所述第三电源电压的至少一个。
  23. 根据权利要求19所述的控制方法，其中，根据所述显示亮度和所述预定亮度范围调节所述第一电源电压、所述第二电源电压和所述第三电源电压的至少一个的步骤包括：
    在所述显示亮度大于所述预定亮度范围的上限值的情况下，降低所述第一电源电压；
    在所述显示亮度小于所述预定亮度范围的下限值的情况下，增加所述第二电源电压和所述第三电源电压的至少一个。
  24. 根据权利要求13所述的控制方法，其中，所述第一电源电压低于所述其他电源电压。
  25. 一种用于显示面板的控制电路，所述显示面板包括如权利要求1所示的显示基板；所述控制电路包括：
    第一电压提供单元，被配置为向在所述弯折区中的所述多个第一子像素提供第一电源电压；
    其他电压提供单元，被配置为向在所述弯折区中的多个与所述第一子像素的发光颜色不同的其他子像素提供其他电源电压。
  26. 根据权利要求25所述的控制电路，其中，所述多个其他子像素包括多个第二子像素和多个第三子像素，其中，所述第一子像素、所述第二子像素和所述第三子像素为发光颜色不同的子像素；
    其他电压提供单元包括：
    第二电压提供单元，被配置为向在所述弯折区中的所述多个第二子像素提供第二电源电压；以及
    第三电压提供单元，被配置为向在所述弯折区中的所述多个第三子像素提供第三电源电压。
  27. 根据权利要求25所述的控制电路，其中，所述多个其他子像素包括多个第二子像素和多个第三子像素，其中，所述第一子像素、所述第二子像素和所述第三子像素为发光颜色不同的子像素；
    所述其他电压提供单元包括：
    第四电压提供单元，被配置为向在所述弯折区中的所述多个第二子像素和所述多个第三子像素提供第四电源电压。
  28. 根据权利要求26所述的控制电路，还包括：
    获取单元，被配置为获得所述显示面板的弯折区的显示图片信息和与所述显示图片信息对应的标准图片信息，其中，所述显示图片信息包括色坐标的横坐标和纵坐标，所述标准图片信息包括色坐标的预定横坐标范围和预定纵坐标范围；以及
    调节单元，被配置为根据所述显示图片信息的色坐标的横坐标和纵坐标、以及所述预定横坐标范围和所述预定纵坐标范围，调节所述第一电源电压、所述第二电源电压和所述第三电源电压的至少一个，以使得所述显示图片信息中的色坐标的横坐标在所述预定横坐标范围内，以及所述显示图片信息中的色坐标的纵坐标在所述预定纵坐标范围内。
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