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WO2013031610A1 - Dispositif d'affichage à cristaux liquides et procédé de commande du panneau à cristaux liquides - Google Patents

Dispositif d'affichage à cristaux liquides et procédé de commande du panneau à cristaux liquides Download PDF

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Publication number
WO2013031610A1
WO2013031610A1 PCT/JP2012/071236 JP2012071236W WO2013031610A1 WO 2013031610 A1 WO2013031610 A1 WO 2013031610A1 JP 2012071236 W JP2012071236 W JP 2012071236W WO 2013031610 A1 WO2013031610 A1 WO 2013031610A1
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WO
WIPO (PCT)
Prior art keywords
polarity
pixel
liquid crystal
display device
subpixel
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PCT/JP2012/071236
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English (en)
Japanese (ja)
Inventor
雅江 北山
健太郎 入江
下敷領　文一
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シャープ株式会社
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.)
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Publication of WO2013031610A1 publication Critical patent/WO2013031610A1/fr

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • 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
    • G09G3/34—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
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3648—Control of matrices with row and column drivers using an active matrix
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0439—Pixel structures
    • G09G2300/0452—Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/0876—Supplementary capacities in pixels having special driving circuits and electrodes instead of being connected to common electrode or ground; Use of additional capacitively coupled compensation electrodes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0247—Flicker reduction other than flicker reduction circuits used for single beam cathode-ray tubes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/028—Improving the quality of display appearance by changing the viewing angle properties, e.g. widening the viewing angle, adapting the viewing angle to the view direction
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0673—Adjustment of display parameters for control of gamma adjustment, e.g. selecting another gamma curve
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • 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
    • G09G3/34—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
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3614—Control of polarity reversal in general

Definitions

  • the present invention relates to a driving technique for a liquid crystal panel.
  • Patent Document 1 the polarity of a data signal supplied to one subpixel of a liquid crystal panel is inverted every frame, and the ⁇ characteristic of the subpixel is periodically switched to improve the viewing angle characteristic of the liquid crystal display device. Techniques for making them disclosed are disclosed.
  • the inventors notice that flicker is noticeable when a liquid crystal panel having four or more (for example, red, blue, green, and yellow) subpixels per pixel is driven to periodically switch the ⁇ characteristics of one subpixel. It was found that there is a case (for example, a case as shown in FIG. 15).
  • One of the objects of the present invention is to suppress such flicker.
  • the present liquid crystal display device is a liquid crystal display device that inverts the polarity of a data signal supplied to one subpixel every n frames (n is a natural number) and periodically switches the ⁇ characteristic of the subpixel.
  • 1 to 4 sub-pixels, and the first to fourth sub-pixels are first to fourth colors, respectively.
  • the first color has higher visibility than the third and fourth colors
  • the second color is The visibility is higher than that of the third and fourth colors
  • the first and second subpixels have the same ⁇ -characteristic switching pattern.
  • the polarity of the data signal supplied to the first subpixel and the second subpixel The polarity of the data signal supplied to is different.
  • FIG. 6 is a schematic diagram illustrating a display state of the liquid crystal display device of Example 1.
  • FIG. It is a block diagram which shows the structure of the liquid crystal display device of FIG. It is a graph which shows the specific luminous sensitivity according to color.
  • 4 is a graph showing two types of ⁇ characteristics ( ⁇ 1 ⁇ ⁇ 2) for each of four colors (4 pixels).
  • FIG. 2 is a circuit diagram illustrating a configuration around a pixel of the liquid crystal display device of FIG. 1.
  • FIG. 6 is a schematic diagram illustrating a modified example of the first embodiment. 6 is a schematic diagram showing a display state of a liquid crystal display device of Example 2.
  • FIG. 6 is a schematic diagram illustrating a display state of a liquid crystal display device of Example 3.
  • FIG. 10 is a schematic diagram illustrating a display state of the liquid crystal display device of Example 4.
  • FIG. 10 is a schematic diagram illustrating a display state of a liquid crystal display device of Example 5.
  • FIG. 10 is a schematic diagram illustrating another modification of the fifth embodiment.
  • FIG. 10 is a schematic diagram illustrating still another modification example of the fifth embodiment.
  • FIG. 10 is a schematic diagram showing a display state of a liquid crystal display device of Example 6.
  • FIG. 10 is a schematic diagram showing a display state of a liquid crystal display device of Example 7. It is a schematic diagram which shows the reference example of the display state of a liquid crystal display device.
  • the present liquid crystal display device LCD includes a liquid crystal panel LCP including data signal lines, scanning signal lines, transistors and subpixel electrodes, a backlight BL for irradiating light to the liquid crystal panel LCP, and scanning signal lines.
  • a gate driver GD for driving the data driver
  • a source driver SD for driving the data signal line
  • a display control board DCS for controlling the gate driver and the source driver.
  • the liquid crystal panel LCP is a so-called four-color panel including four color sub-pixels (SP) of red (R), green (G), blue (B), and yellow (Y).
  • SP color sub-pixels
  • a red (R) sub-pixel, a green (G) sub-pixel, a blue (B) sub-pixel, and a yellow (Y) sub-pixel arranged in this order in the stretching direction) constitute one pixel (pixel).
  • the relative luminous sensitivities of the four colors are yellow (Y)> green (G)> red (R)> blue (B), and yellow and green luminance changes are relatively visible. It is easy to perceive, and the luminance changes of red and blue are relatively difficult to perceive.
  • the display control board DCS includes a timing controller Tcon and a video processing circuit IPC.
  • the timing controller Tcon generates display data, a source control signal, and a gate control signal from the video data IDA in cooperation with the video processing circuit IPC, outputs the display data and the source control signal to the source driver SD, and performs gate control.
  • the signal is output to the gate driver GD.
  • the video processing circuit IPC to which the video data IDA is input includes the gamma table GTa corresponding to the first gamma characteristic ⁇ 1 in FIG. 4 and the second gamma characteristic ⁇ 2 in FIG. 4 (in the same gradation of the same color, the luminance of ⁇ 1 ⁇ ⁇ 2 And a gamma table GTb corresponding to the subpixel color in which the input gradation is written, the position in the panel, and the frame order.
  • a plurality of output gradations are generated from one input gradation by selectively using GTa or the gamma table GTb.
  • the timing controller Tcon generates a polarity inversion signal as one of the source control signals
  • the source driver SD receives the polarity inversion signal and receives a data signal (analog signal) that inverts the polarity for each frame in one subpixel. ) Is written.
  • One frame period is 1/120 [second] or less, preferably 1/480 [second].
  • Example 1 In the first embodiment, 16 subpixels included in four pixels arranged in two rows and two columns on a liquid crystal panel are displayed in four consecutive frames (frames F1 to F4 having one cycle) as shown in FIG. Setting of ⁇ characteristics (setting of ⁇ 1 and ⁇ 2) and setting of polarity of data signal (setting of positive polarity and negative polarity) are performed.
  • the four pixels are located at the upper left, the first pixel consisting of R1, G1, B1, Y1, the upper right, the second pixel consisting of R2, G2, B2, Y2, and the lower left, R3 A third pixel composed of G3, B3, and Y3 and a fourth pixel that is located on the lower right and is composed of R4, G4, B4, and Y4. Further, one cycle corresponds to one input gradation, and the switching pattern of the ⁇ characteristic is that the first and fourth pixels have a frame F1 of ⁇ 1 (bright) ⁇ frame F2 has a ⁇ 1 (bright) ⁇ frame F3.
  • ⁇ 2 (dark) ⁇ frame F3 is ⁇ 2 (dark), and the second and third pixels are frame F1 is ⁇ 2 (dark) ⁇ frame F2 is ⁇ 2 (dark) ⁇ frame F3 is ⁇ 1 (light) ⁇ frame F4 is ⁇ 1 (bright).
  • frame 1 (set to ⁇ 1 and positive polarity)
  • frame 2 (set to ⁇ 1 and negative polarity)
  • frame 3 (set to ⁇ 2 and positive polarity)
  • Frame 4 (gamma 2 and set to negative polarity).
  • the green sub-pixel G1 of the first pixel For the green sub-pixel G1 of the first pixel, frame 1 (gamma 1 and set to positive polarity) ⁇ frame 2 (gamma 1 and set to negative polarity) ⁇ frame 3 ( ⁇ 2 and positive polarity) ⁇ frame 4 ( ⁇ 2 and negative polarity), and the green sub-pixel G1 of the first pixel is frame 1 ( ⁇ 1 and negative polarity) ⁇ frame 2 ( ⁇ 1 and positive polarity) To frame 3 (set to ⁇ 2 and negative polarity) ⁇ frame 4 (set to ⁇ 2 and positive polarity), the first pixel For yellow subpixel Y1, frame 1 (gamma 1 and set to negative polarity) ⁇ frame 2 (gamma 1 and set to positive polarity) ⁇ frame 3 (gamma 2 and set to negative polarity) ⁇ frame 4 (gamma 2 and set to positive polarity) It is.
  • frame Y2 frame 1 (set to ⁇ 2 and positive polarity) ⁇ frame 2 (set to ⁇ 2 and negative polar
  • the yellow sub-pixel of the third pixel For frame Y3, frame 1 (set to ⁇ 2 and positive polarity) ⁇ frame 2 (set to ⁇ 2 and negative polarity)
  • frame Y4 frame 1 (set to ⁇ 1 and negative polarity) ⁇ frame 2 (set to ⁇ 1 and positive
  • the data signal supplied to the green subpixel G1 can be obtained by adopting a method of making the polarity different from the polarity of the data signal supplied to the yellow subpixel Y1.
  • the polarity of the data signal of the yellow subpixel Y1 and the polarity of the data signal of the blue subpixel B1 are the same.
  • the polarity of the data signal of the green sub-pixel G1 and the polarity of the data signal of the red sub-pixel R1 can be made to be more effective in suppressing flicker.
  • the visual sensitivity depends on the visual environment and the set wavelength of each color. For example, when the visual sensitivity is green> yellow> red> blue, as shown in FIG. 6, data of the green subpixel G1 is used.
  • the polarity of the signal and the polarity of the data signal of the blue subpixel B1 are same polarity, the polarity of the data signal of the yellow subpixel Y1 and the polarity of the data signal of the red subpixel R1 are further increased. Flicker can be effectively suppressed.
  • liquid crystal display device LCD high speed driving is preferable.
  • two data signal lines (SL ⁇ sL) are provided in one pixel column, and two scanning signal lines (GL1 ⁇ GL3) are simultaneously selected.
  • SL ⁇ sL data signal lines
  • GL1 ⁇ GL3 scanning signal lines
  • a total of four data signal lines, two corresponding to the upper half of the panel and two corresponding to the lower half, may be provided in one pixel column, and the panel may be divided up and down (4 ⁇ speed driving is possible).
  • the switching pattern of ⁇ is set to be the same for the four subpixels belonging to one pixel, and the polarity of the data signal is set to be canceled in these four subpixels.
  • the present invention is not limited to this.
  • the switching pattern of ⁇ for the first pixel R1, the second pixel G2, B2, Y2, and the third pixel G3, B3, Y3 is the first pattern ( ⁇ 1 ⁇ ⁇ 1 ⁇ ⁇ 2 ⁇ ⁇ 2).
  • the switching pattern of ⁇ for the first pixel G1, B1, Y1, the second pixel R2 and the third pixel R3 as a second pattern ( ⁇ 2 ⁇ ⁇ 2 ⁇ ⁇ 1 ⁇ ⁇ 1), It is also possible to balance the characteristics (to cancel light and dark).
  • the first pixel G1 and the second pixel are set to the first polarity with respect to the first pixel R1, B1, Y1, the second pixel G2, and the third pixel G3.
  • R2 ⁇ B2 ⁇ Y2 of the third pixel and R3 ⁇ B3 ⁇ Y3 of the third pixel the polarity of the data signal is set to the second polarity, and the polarity of the data signal is balanced in units of two adjacent pixels. It is also possible to plan.
  • Example 3 In the present liquid crystal display device, the setting of ⁇ of the four subpixels included in one pixel and the setting of the polarity of the data signal are the same as in FIG. 1, but the arrangement order of these four subpixels is changed, as shown in FIG. As described above, it is also possible to make the G subpixel and the Y subpixel adjacent in the row direction within one pixel.
  • Example 4 In the present liquid crystal display device, the arrangement order of the four sub-pixels included in one pixel and the setting of the polarity of the data signal are the same as in FIG. 1, but the setting of ⁇ of these four sub-pixels is changed as shown in FIG. It is also possible to configure.
  • the switching pattern of ⁇ is set to the first pattern ( ⁇ 1 ⁇ ⁇ 1 ⁇ ⁇ 2 ⁇ ⁇ 2) for G1 ⁇ Y1 of the first pixel, G2 ⁇ Y2 of the second pixel, and R3 ⁇ B3 of the third pixel.
  • the switching pattern of ⁇ is the second pattern ( ⁇ 2 ⁇ ⁇ 2 ⁇ ⁇ 1 ⁇ ⁇ 1), and the balance of the polarity of the data signal in units of one pixel It is also possible to place checkered arrangement of light ( ⁇ 1) and dark ( ⁇ 2) while balancing the ⁇ characteristics (while canceling light and dark).
  • Example 5 In the present liquid crystal display device, the setting of ⁇ of four subpixels included in one pixel is the same as that in FIG. 1, and the arrangement of these four subpixels is changed from a stripe arrangement to a matrix arrangement (2 rows and 2 columns arrangement). It is also possible to configure as shown in FIG. In FIG. 10, it is possible to invert the polarity of the data signal in dot units while balancing the polarity of the data signal and the ⁇ characteristics (while canceling light and dark).
  • the setting of ⁇ of the four subpixels included in one pixel is the same as that in FIG. 9, but the arrangement of these four subpixels is changed from a stripe arrangement to a matrix arrangement (2 rows ⁇ 2 columns arrangement). It is also possible to configure as shown in FIG.
  • the G sub-pixel and the Y sub-pixel are performed within one pixel while balancing the polarity of the data signal and the gamma characteristic in units of one pixel (while canceling light and dark). Adjacent to the direction, the polarity of the data signal can be inverted.
  • Example 6 In the present liquid crystal display device, the setting of ⁇ of the four subpixels included in one pixel and the setting of the polarity of the data signal are the same as in FIG. It is also possible to configure as shown in FIG. In this case, for example, the sum of the luminances of the bright region (upper side) of Y1 and the dark region (lower side) of Y1 matches ⁇ 1, and the bright region (upper side) of Y2 and the dark region (lower side) of Y2 The total sum of luminance matches ⁇ 2. Thus, by forming regions having different ⁇ characteristics in the subpixels, the viewing angle characteristics can be further enhanced.
  • Example 7 In the present liquid crystal display device, the arrangement order of the four subpixels included in one pixel and the setting of the polarity of the data signal are the same as in FIG. 1, but the switching pattern of ⁇ of these four subpixels is increased (four patterns and It is also possible to configure as shown in FIG. In this case, the switching pattern of the ⁇ characteristics is such that the first pixel is ⁇ 1 (bright) in the frame F1, ⁇ 1 (bright) in the frame F2, ⁇ 2 (dark) in the frame F3, and ⁇ 2 (dark) in the frame F3.
  • the fourth pixel is ⁇ 2 (dark), the frame F2 is ⁇ 2 (dark), the frame F3 is ⁇ 1 (bright), the frame F4 is ⁇ 1 (bright), and the second pixel is the frame F1.
  • ⁇ 2 (dark) ⁇ frame F2 is ⁇ 1 (bright) ⁇ frame F3 is ⁇ 1 (bright) ⁇ frame F3 is ⁇ 2 (dark)
  • the third pixel is frame F1 is ⁇ 1 (bright) ⁇ frame F2 is ⁇ 2 (Dark) ⁇ frame F3 is ⁇ 2 (dark) ⁇ frame F4 is ⁇ 1 (bright).
  • the present liquid crystal display device is a liquid crystal display device that inverts the polarity of a data signal supplied to one subpixel every n frames (n is a natural number) and periodically switches the ⁇ characteristic of the subpixel.
  • 1 to 4 sub-pixels, and the first to fourth sub-pixels are first to fourth colors, respectively.
  • the first color has higher visibility than the third and fourth colors
  • the second color is The visibility is higher than that of the third and fourth colors
  • the first and second subpixels have the same ⁇ -characteristic switching pattern.
  • the polarity of the data signal supplied to the first subpixel and the second subpixel The polarity of the data signal supplied to is different.
  • the third and fourth subpixels have the same switching pattern of ⁇ characteristics, and in the same frame, the polarity of the data signal supplied to the third subpixel and the data signal supplied to the fourth subpixel are the same. It can also be set as the structure from which polarity differs.
  • the first and second subpixels may belong to the same pixel.
  • the third and fourth colors may be red and blue, respectively.
  • the first to fourth sub-pixels have the same ⁇ characteristic switching pattern, the first color has higher visibility than the second color, and the third color has higher visibility than the fourth color.
  • the polarity of the data signal supplied to the first subpixel is the same as the polarity of the data signal supplied to the fourth subpixel, and the polarity of the data signal supplied to the second subpixel.
  • the polarity of the data signal supplied to the third subpixel may be the same.
  • the liquid crystal display device includes fifth and sixth subpixels having different ⁇ -characteristic switching patterns from the first and second subpixels, and the fifth and sixth subpixels have first and second colors, respectively. You can also
  • the polarity of the data signal supplied to the fifth subpixel and the polarity of the data signal supplied to the sixth subpixel may be different in the same frame.
  • the ⁇ characteristic of each of the first to fourth subpixels can be switched every m frames.
  • liquid crystal display device it may be configured such that n ⁇ m.
  • the first and second colors may be yellow and green, respectively.
  • one frame period may be less than 1/240 [second].
  • each of the first to fourth sub-pixels includes a plurality of pixel electrodes, and a different effective voltage is applied to one of these pixel electrodes and another one during halftone display. You can also.
  • the ⁇ characteristics of the first to fourth subpixels are switched between the first and second characteristics every m frames, and the first to fourth subpixels have the first characteristic at the same gradation.
  • a configuration in which luminance ⁇ luminance of the second characteristic may be employed.
  • the second subpixel when the first subpixel has the first characteristic, the second subpixel also has the first characteristic, and when the first subpixel has the second characteristic, the second subpixel also has the second characteristic. It can also be set as the characteristic.
  • the liquid crystal panel driving method is a liquid crystal panel driving method in which the polarity of a data signal supplied to one subpixel is inverted every n frames (n is a natural number) and the ⁇ characteristic of the subpixel is periodically switched.
  • the first to fourth subpixels are first to fourth colors, respectively, and the first color has higher visibility than the third and fourth colors, and the second color The colors have higher visibility than the third and fourth colors, the first and second subpixels have the same ⁇ -characteristic switching pattern, and in the same frame, the polarity of the data signal supplied to the first subpixel and the second The polarity of the data signal supplied to the sub-pixel is different.
  • the present invention is not limited to the above-described embodiments, and those obtained by appropriately modifying the above-described embodiments based on common general technical knowledge and those obtained by combining them are also included in the embodiments of the present invention.
  • the present invention is suitable for a liquid crystal TV and a liquid crystal display.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

L'invention concerne un dispositif d'affichage à cristaux liquides qui commute de façon cyclique les caractéristiques gamma de sous-pixels, les premier à quatrième sous-pixels étant respectivement les première à quatrième couleurs ; la fonction de luminosité est plus élevée pour les première et seconde couleurs que pour les troisième et quatrième couleurs ; le motif d'après lequel les caractéristiques gamma des premiers sous-pixels sont commutées et le motif d'après lequel les caractéristiques gamma des seconds sous-pixels sont commutées sont identiques ; et dans une trame donnée, la polarité du signal de données fourni aux premiers sous-pixels et la polarité du signal de données fourni aux seconds sous-pixels sont différentes. Cette configuration permet d'améliorer le papillotement dans ce dispositif d'affichage à cristaux liquides.
PCT/JP2012/071236 2011-08-26 2012-08-22 Dispositif d'affichage à cristaux liquides et procédé de commande du panneau à cristaux liquides WO2013031610A1 (fr)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104376817A (zh) * 2013-08-12 2015-02-25 顾晶 一种用于lcd面板的驱动方法及其驱动ic
CN104575432A (zh) * 2015-02-03 2015-04-29 京东方科技集团股份有限公司 一种显示面板的驱动方法、显示面板及显示装置
US10891909B2 (en) 2017-07-11 2021-01-12 Mitsubishi Electric Corporation Display device and method for driving same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02306292A (ja) * 1989-05-22 1990-12-19 Seiko Epson Corp カラー液晶表示装置の駆動方法
JP2003255307A (ja) * 2002-03-05 2003-09-10 Matsushita Electric Ind Co Ltd 液晶表示装置の駆動方法
WO2011083784A1 (fr) * 2010-01-08 2011-07-14 シャープ株式会社 Dispositif d'affichage à cristaux liquides
WO2011093387A1 (fr) * 2010-01-29 2011-08-04 シャープ株式会社 Dispositif d'affichage à cristaux liquides

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02306292A (ja) * 1989-05-22 1990-12-19 Seiko Epson Corp カラー液晶表示装置の駆動方法
JP2003255307A (ja) * 2002-03-05 2003-09-10 Matsushita Electric Ind Co Ltd 液晶表示装置の駆動方法
WO2011083784A1 (fr) * 2010-01-08 2011-07-14 シャープ株式会社 Dispositif d'affichage à cristaux liquides
WO2011093387A1 (fr) * 2010-01-29 2011-08-04 シャープ株式会社 Dispositif d'affichage à cristaux liquides

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104376817A (zh) * 2013-08-12 2015-02-25 顾晶 一种用于lcd面板的驱动方法及其驱动ic
CN104575432A (zh) * 2015-02-03 2015-04-29 京东方科技集团股份有限公司 一种显示面板的驱动方法、显示面板及显示装置
US10891909B2 (en) 2017-07-11 2021-01-12 Mitsubishi Electric Corporation Display device and method for driving same

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