CN108847183A - A kind of pixel-driving circuit and display panel - Google Patents
A kind of pixel-driving circuit and display panel Download PDFInfo
- Publication number
- CN108847183A CN108847183A CN201810725978.2A CN201810725978A CN108847183A CN 108847183 A CN108847183 A CN 108847183A CN 201810725978 A CN201810725978 A CN 201810725978A CN 108847183 A CN108847183 A CN 108847183A
- Authority
- CN
- China
- Prior art keywords
- voltage
- input terminal
- node
- transistor
- scanning signal
- 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.)
- Granted
Links
- 239000003990 capacitor Substances 0.000 claims abstract description 34
- 230000003287 optical effect Effects 0.000 claims description 3
- 239000013078 crystal Substances 0.000 claims description 2
- 230000001808 coupling effect Effects 0.000 claims 1
- 239000010409 thin film Substances 0.000 abstract description 8
- 230000008878 coupling Effects 0.000 abstract description 6
- 238000010168 coupling process Methods 0.000 abstract description 6
- 238000005859 coupling reaction Methods 0.000 abstract description 6
- 239000011159 matrix material Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 239000010408 film Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000003760 hair shine Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920001621 AMOLED Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
Classifications
-
- 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
- G09G3/22—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]
- 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
- G09G3/3233—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 current through the light-emitting element
-
- 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
- G09G3/22—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]
- 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
- 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
-
- 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
- G09G3/22—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]
- G09G3/3266—Details of drivers for scan electrodes
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of El Displays (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
Pixel-driving circuit and display panel provided by the invention, including the first input module, the second input module, drive module, light emitting diode, first capacitor and the second capacitor, under the control of the second scanning signal of the second scanning signal input terminal, the current potential of lifting first node is acted on by capacitive coupling, to promote the grid leak pole tension of thin film transistor (TFT), and then promote the display quality of display panel.
Description
Technical field
The present invention relates to field of display technology more particularly to a kind of pixel-driving circuits and display panel.
Background technique
Organic light emitting display panel utilizes Organic Light Emitting Diode (full name in English Organic Lighting Emitting
Diode, abbreviation OLED) display image, be a kind of active shine it is in love when panel, display mode and traditional film crystal
Pipe display panel (full name in English Thin Film Transistor liquid crystal display, abbreviation TFT-LCD) is aobvious
Show mode difference, be not necessarily to backlight, moreover, have contrast height, fast response time, it is frivolous many advantages, such as.Therefore, You Jifa
Light display panel is known as that the display panel of a new generation of film transistor display panel can be replaced.
According to the difference of driving method, organic light emitting display panel is divided into passive-matrix organic light emitting display panel (English
Full name Passive Matrix Organic Lighting Emitting Display, abbreviation PMOLED) and active-matrix have
Machine light emitting display panel (full name in English Active Matrix Organic Lighting Emitting Display, referred to as
AMOLED), active-matrix organic light emitting display panel is also referred to as active matrix organic light-emitting display panel.
Active matrix organic light-emitting display panel is that the electric current for flowing through light emitting diode by thin film transistor (TFT) control is realized
Display effect, however, thin film transistor (TFT) is led in use due to being influenced by factors such as irradiation, source-drain voltage stress
It causes the generation of its threshold voltage to deviate, and then influences to flow through the electric current of light emitting diode, cause the display of display panel uneven.
Summary of the invention
The present invention provides a kind of pixel-driving circuit and display panel, is able to ascend the grid leak pole tension of thin film transistor (TFT),
And then promote the display quality of display panel.
The present invention provides a kind of pixel-driving circuit comprising：First input module, the second input module, drive module,
Light emitting diode, first capacitor and the second capacitor；
First input module connects the first scanning signal input terminal, data signal input, second voltage input terminal
End, first node and second node, under the control of the first scanning signal of the first scanning signal input terminal, by institute
The voltage for stating the voltage and the data signal input of first node pulls together, and by the voltage of the second node with it is described
The voltage of second voltage input terminal pulls together；
Second input module connects the second scanning signal input terminal, tertiary voltage input terminal and second section
Point, under the control of the second scanning signal of the second scanning signal input terminal, by the voltage of the second node with
The voltage of the tertiary voltage input terminal pulls together；
The drive module connects the anode of the first node, first voltage input terminal and the light emitting diode, institute
The cathode for stating light emitting diode connects the second voltage input terminal, and the drive module is used for the voltage in the first node
Control under, drive the lumination of light emitting diode；
First pole of the first capacitor connects the first node, the second level connection described second of the first capacitor
Node；First pole of second capacitor connects the first voltage input terminal, described in the second pole connection of second capacitor
First node.
In pixel-driving circuit of the invention, first input module includes the first transistor and third transistor；
The first end of the first transistor connects the data signal input, and the second end of the first transistor connects
The first node is connect, the grid of the first transistor connects the first scanning signal input terminal；
The first end of the third transistor connects the second voltage input terminal, and the second end of the third transistor connects
The second node is connect, the grid of the third transistor connects the first scanning signal input terminal.
In pixel-driving circuit of the invention, second input module includes：4th transistor；
The first end of 4th transistor connects the tertiary voltage input terminal, and the second end of the 4th transistor connects
The second node is connect, the grid of the 4th transistor connects the second scanning signal input terminal.
In pixel-driving circuit of the invention, the drive module includes：Second transistor；
The first end of the second transistor connects the first voltage input terminal, and the second end of the second transistor connects
The anode of the light emitting diode is connect, the grid of the second transistor connects the first node.
In pixel-driving circuit of the invention, each transistor is for NMOS tube.
In pixel-driving circuit of the invention, the first voltage input terminal and the second voltage input terminal are for mentioning
For the driving voltage of the light emitting diode, the tertiary voltage input terminal is for providing reference voltage.
In pixel-driving circuit of the invention, it is defeated that the voltage value of the tertiary voltage input terminal is greater than the second voltage
Enter the voltage value at end.
In pixel-driving circuit of the invention, the driver' s timing of the pixel-driving circuit includes：First time period and
Second time period；
In the first time period, the first scanning signal of the first scanning signal input terminal is high level, described the
Second scanning signal of two scanning signal input terminals is low level, the first transistor and third transistor conducting, institute
The closing of the 4th transistor is stated, the voltage of the first node and the voltage of the data signal input pull together, second section
The voltage of the voltage and the second voltage input terminal of point pulls together；
In the second time period, the first scanning signal of the first scanning signal input terminal is low level, described the
Second scanning signal high level of two scanning signal input terminals, the first transistor and the third transistor are closed, described
4th transistor turns, the voltage of the second node and the voltage of the tertiary voltage input terminal pull together, simultaneously because capacitor
Coupling, the first node current potential can be lifted, so that second transistor conducting driving lumination of light emitting diode.
In pixel-driving circuit of the invention, the first node be lifted after voltage：Wherein, VdataFor the voltage of the data signal input, VrefIt is described
The voltage of tertiary voltage input terminal, C1 are the capacitance of the first capacitor, and Cst is the capacitance of second capacitor, OCSS
For the voltage of the second voltage input terminal.
The present invention also provides a kind of display panels comprising pixel-driving circuit as described above.
Beneficial effects of the present invention are：Pixel-driving circuit and display panel provided by the invention, including the first input mould
Block, the second input module, drive module, light emitting diode, first capacitor and the second capacitor, in the second scanning signal input terminal
The second scanning signal control under, by capacitive coupling act on lifting first node current potential, to promote thin film transistor (TFT)
Grid leak pole tension, and then promoted display panel display quality.
Detailed description of the invention
It, below will be to embodiment or the prior art in order to illustrate more clearly of embodiment or technical solution in the prior art
Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only some of invention
Embodiment for those of ordinary skill in the art without creative efforts, can also be attached according to these
Figure obtains other attached drawings.
Fig. 1 is the schematic diagram of pixel-driving circuit provided in an embodiment of the present invention；
Fig. 2 is the circuit diagram of pixel-driving circuit provided in an embodiment of the present invention；
Fig. 3 is the driver' s timing figure for the pixel-driving circuit that present invention implementation provides.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The transistor used in all embodiments of the invention all can be thin film transistor (TFT) or field-effect tube or other characteristics
Identical device is mainly switching transistor according to transistor used by effect the embodiment of the present invention in circuit.By
It is symmetrical in the source electrode of the switching transistor used here, drain electrode, so its source electrode, drain electrode can be interchanged.In this hair
In bright embodiment, to distinguish the two poles of the earth of transistor in addition to grid, wherein it will be known as first end by source electrode, drain electrode is known as second end.
Provide that the intermediate ends of transistor are grid, input signal end is source electrode, output signal end is drain electrode by the form in attached drawing.Furthermore
Switching transistor used by the embodiment of the present invention is the conducting when grid is high level, is ended when grid is low level.
It should be noted that it should be noted that the printed words such as " first ", " second " in the application are used for the purpose of to function
Essentially identical identical entry or similar item can and be acted on to distinguish, the printed words such as " first ", " second " be not to quantity and
Execution order is defined.
Referring to Fig. 1, Fig. 1 is the schematic diagram of pixel-driving circuit provided in an embodiment of the present invention.Such as Fig. 1 institute
Show, the embodiment of the present invention provides a kind of pixel-driving circuit comprising：First input module 101, drives second input module 102
Dynamic model block 103, light emitting diode OLED, first capacitor C1 and the second capacitor Cst；
It is defeated that first input module 101 connects the first scanning signal input terminal Gate N, data signal input, second voltage
Enter to hold the end OVSS, first node A and second node B, for the first scanning signal in the first scanning signal input terminal Gate N
Control under, the voltage of the voltage of first node A and data signal input is pulled together, and by the voltage of second node B with
The voltage of second voltage input terminal OVSS pulls together；
Second input module 102 connect the first scanning signal input terminal Gate N+1, tertiary voltage input terminal Vref and
Second node B, under the control of the second scanning signal of the first scanning signal input terminal Gate N+1, by second node B
The voltage of voltage and tertiary voltage input terminal Vref pull together；
Drive module 103 connects the anode of first node A, first voltage input terminal OVDD and light emitting diode OLED, hair
The cathode of optical diode OLED connects second voltage input terminal OVSS, and drive module 103 is used for the control in the voltage of first node A
Under system, driving light emitting diode OLED shines；
The first pole of first capacitor C1 connects first node A, and the second level of first capacitor C1 connects second node B；Second
The first pole of capacitor Cst connects first voltage input terminal OVDD, and the second pole of the second capacitor Cst connects first node A.
It should be noted that multiple modules, which share a signal end, can reduce signal in GOA circuit in above-described embodiment
The quantity at end, certainly, these modules can also be separately connected different signal ends, as long as the signal end can provide similar letter
Number.
Referring to Fig. 2, Fig. 2 is the circuit diagram of pixel-driving circuit provided in an embodiment of the present invention.Specifically, the first input
Module 101 includes the first transistor T1 and third transistor T3；The first end of the first transistor T1 connects data signal input,
The second end of the first transistor T1 connects first node A, and the grid of the first transistor T1 connects the first scanning signal input terminal
Gate N；The first end of third transistor T3 connects second voltage input terminal OVSS, the second end connection of third transistor T3 the
The grid of two node B, third transistor T3 connect the first scanning signal input terminal Gate N.
Second input module 102 includes：4th transistor T4；The first end connection tertiary voltage input of 4th transistor T4
Vref is held, the second end of the 4th transistor T4 connects second node B, and it is defeated that the grid of the 4th transistor T4 connects the first scanning signal
Enter to hold Gate N+1.
Drive module 103 includes：Second transistor T2；The first end of second transistor T2 connects first voltage input terminal
The anode of the second end connection light emitting diode OLED of OVDD, second transistor T2, the grid connection first of second transistor T2
Node A.
Wherein, first voltage input terminal OVDD and second voltage input terminal OVSS is for providing the drive of light emitting diode OLED
Dynamic voltage, tertiary voltage input terminal Vref is for providing reference voltage., the voltage value of tertiary voltage input terminal Vref is greater than second
The voltage value of voltage input end OVSS.
Further, each transistor in the embodiment of the present invention is for NMOS tube, i.e. the first transistor T1T1, second
Transistor T2T2, third transistor T3T3 and the 4th transistor T4T4 are NMOS tube, and NMOS tube is led when grid is high level
It is logical, end when grid is low level.
Referring to Fig. 3, Fig. 3 is the driver' s timing figure for the pixel-driving circuit that present invention implementation provides.As shown in figure 3, this
The driver' s timing of pixel-driving circuit that inventive embodiments provide includes：First time period t1 and second time period t2.
Wherein, in first time period, the first scanning signal of the first scanning signal input terminal Gate N is high level, first
The second scanning signal of scanning signal input terminal Gate N+1 is low level, and the first transistor T1 and third transistor T3 are connected,
4th transistor T4 is closed, the voltage V of first node AAIt is pulled together with the voltage Vdata of data signal input, second node B's
The voltage of voltage and second voltage input terminal OVSS pulls together.
In second time period, the first scanning signal of the first scanning signal input terminal Gate N is low level, the first scanning
The second scanning signal high level of signal input part Gate N+1, the first transistor T1 and third transistor T3 are closed, and the 4th is brilliant
Body pipe T4 conducting, the voltage of the voltage and tertiary voltage input terminal Vref of second node B pull together, simultaneously because capacitive coupling is made
With the current potential of first node A can be lifted, so that second transistor T2 conducting driving light emitting diode OLED shines.
Specifically, first node A be lifted after voltage：Wherein,
VdataFor the voltage of data signal input, VrefFor the voltage of tertiary voltage input terminal Vref, C1 is the capacitor of first capacitor C1
Value, Cst are the capacitance of the second capacitor Cst, and OCSS is the voltage of second voltage input terminal OVSS.
Pixel-driving circuit provided by the invention, including the first input module 101, the second input module 102, drive module
103, light emitting diode OLED, first capacitor C1 and the second capacitor Cst, the of the first scanning signal input terminal Gate N+1
Under the control of two scanning signals, the current potential of lifting first node A is acted on by capacitive coupling, to promote the grid of thin film transistor (TFT)
Drain voltage, and then promote the display quality of display panel.
The embodiment of the present invention also provides a kind of display panel comprising above-described pixel-driving circuit can specifically join
According to pixel-driving circuit described above, this will not be repeated here.
Pixel-driving circuit and display panel provided by the invention, including the first input module 101, the second input module
102, drive module 103, light emitting diode OLED, first capacitor C1 and the second capacitor Cst, in the first scanning signal input terminal
Under the control of the second scanning signal of Gate N+1, the current potential of lifting first node A is acted on by capacitive coupling, to be promoted thin
The grid leak pole tension of film transistor, and then promote the display quality of display panel.
In conclusion although the present invention has been disclosed above in the preferred embodiment, but above preferred embodiment is not to limit
The system present invention, those skilled in the art can make various changes and profit without departing from the spirit and scope of the present invention
Decorations, therefore protection scope of the present invention subjects to the scope of the claims.
Claims (10)
1. a kind of pixel-driving circuit, which is characterized in that including：First input module, the second input module, drive module, hair
Optical diode, first capacitor and the second capacitor；
First input module connects the first scanning signal input terminal, data signal input, second voltage input terminal end, the
One node and second node, under the control of the first scanning signal of the first scanning signal input terminal, by described
The voltage of one node and the voltage of the data signal input pull together, and by the voltage of the second node and described second
The voltage of voltage input end pulls together；
Second input module connects the second scanning signal input terminal, tertiary voltage input terminal and the second node, uses
Under the control in the second scanning signal of the second scanning signal input terminal, by the voltage of the second node and described the
The voltage of three voltage input ends pulls together；
The drive module connects the anode of the first node, first voltage input terminal and the light emitting diode, the hair
The cathode of optical diode connects the second voltage input terminal, and the drive module is used for the control in the voltage of the first node
Under system, the lumination of light emitting diode is driven；
First pole of the first capacitor connects the first node, and the second level of the first capacitor connects second section
Point；First pole of second capacitor connects the first voltage input terminal, the second pole connection of second capacitor described the
One node.
2. pixel-driving circuit according to claim 1, which is characterized in that first input module includes first crystal
Pipe and third transistor；
The first end of the first transistor connects the data signal input, and the second end of the first transistor connects institute
First node is stated, the grid of the first transistor connects the first scanning signal input terminal；
The first end of the third transistor connects the second voltage input terminal, and the second end of the third transistor connects institute
Second node is stated, the grid of the third transistor connects the first scanning signal input terminal.
3. pixel-driving circuit according to claim 1, which is characterized in that second input module includes：4th is brilliant
Body pipe；
The first end of 4th transistor connects the tertiary voltage input terminal, and the second end of the 4th transistor connects institute
Second node is stated, the grid of the 4th transistor connects the second scanning signal input terminal.
4. pixel-driving circuit according to claim 1, which is characterized in that the drive module includes：Second transistor；
The first end of the second transistor connects the first voltage input terminal, and the second end of the second transistor connects institute
The anode of light emitting diode is stated, the grid of the second transistor connects the first node.
5. according to the described in any item pixel-driving circuits of claim 2-4, which is characterized in that each transistor is for NMOS
Pipe.
6. pixel voltage according to claim 1, which is characterized in that the first voltage input terminal and the second voltage
Input terminal is used to provide the described the driving voltage of light emitting diode, and the tertiary voltage input terminal is for providing reference voltage.
7. pixel-driving circuit according to claim 6, which is characterized in that the voltage value of the tertiary voltage input terminal is big
In the voltage value of the second voltage input terminal.
8. pixel-driving circuit according to claim 1, which is characterized in that the driver' s timing packet of the pixel-driving circuit
It includes：First time period and second time period；
It is high level in the first scanning signal of the first time period, the first scanning signal input terminal, described second sweeps
The second scanning signal for retouching signal input part is low level, the first transistor and third transistor conducting, described the
Four transistors are closed, and the voltage of the first node and the voltage of the data signal input pull together, the second node
The voltage of voltage and the second voltage input terminal pulls together；
It is low level in the first scanning signal of the second time period, the first scanning signal input terminal, described second sweeps
The second scanning signal high level of signal input part is retouched, the first transistor and the third transistor are closed, and the described 4th
Transistor turns, the voltage of the second node and the voltage of the tertiary voltage input terminal pull together, simultaneously because capacitive coupling
Effect, the first node current potential can be lifted, so that second transistor conducting driving lumination of light emitting diode.
9. pixel-driving circuit according to claim 8, which is characterized in that the first node be lifted after voltage：Wherein, VdataFor the voltage of the data signal input, VrefFor institute
The voltage of tertiary voltage input terminal is stated, C1 is the capacitance of the first capacitor, and Cst is the capacitance of second capacitor,
OCSS is the voltage of the second voltage input terminal.
10. a kind of display panel, which is characterized in that including such as described in any item pixel-driving circuits of claim 1-9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810725978.2A CN108847183B (en) | 2018-07-04 | 2018-07-04 | Pixel driving circuit and display panel |
| PCT/CN2018/103900 WO2020006854A1 (en) | 2018-07-04 | 2018-09-04 | Pixel driving circuit and display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810725978.2A CN108847183B (en) | 2018-07-04 | 2018-07-04 | Pixel driving circuit and display panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108847183A true CN108847183A (en) | 2018-11-20 |
| CN108847183B CN108847183B (en) | 2020-06-16 |
Family
ID=64200073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810725978.2A Active CN108847183B (en) | 2018-07-04 | 2018-07-04 | Pixel driving circuit and display panel |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108847183B (en) |
| WO (1) | WO2020006854A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109243368A (en) * | 2018-11-13 | 2019-01-18 | 京东方科技集团股份有限公司 | Pixel circuit and its driving method, array substrate |
| CN111627375A (en) * | 2020-05-29 | 2020-09-04 | 上海天马微电子有限公司 | Driving circuit, driving method thereof and display device |
| CN114913803A (en) * | 2022-05-31 | 2022-08-16 | Tcl华星光电技术有限公司 | Pixel drive circuit and display panel |
| CN114913804A (en) * | 2022-05-31 | 2022-08-16 | Tcl华星光电技术有限公司 | Pixel driving circuit and display panel |
| CN114999368A (en) * | 2022-05-31 | 2022-09-02 | Tcl华星光电技术有限公司 | Pixel driving circuit and display panel |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1490779A (en) * | 2002-06-11 | 2004-04-21 | ����Sdi��ʽ���� | Light-emitting display, light-emitting display panel, and driving method thereof |
| US20090027312A1 (en) * | 2007-07-23 | 2009-01-29 | Min Koo Han | Organic light emitting display |
| CN101609839A (en) * | 2008-06-17 | 2009-12-23 | 三星移动显示器株式会社 | Pixel and organic light emitting display device using same |
| CN103208254A (en) * | 2013-03-20 | 2013-07-17 | 合肥京东方光电科技有限公司 | Pixel circuit and driving method thereof, array substrate and display device |
| US20130249413A1 (en) * | 2012-03-21 | 2013-09-26 | Wintek Corporation | Light emitting element pixel driving circuit |
| CN105469743A (en) * | 2016-01-29 | 2016-04-06 | 深圳市华星光电技术有限公司 | Pixel compensating circuit, scanning driving circuit and panel display device |
| CN106448564A (en) * | 2016-12-20 | 2017-02-22 | 京东方科技集团股份有限公司 | OLED pixel circuit as well as driving method and display device thereof |
| US20170053595A1 (en) * | 2015-08-17 | 2017-02-23 | Polyera Taiwan Corporation | Pixel circuit |
| CN106887210A (en) * | 2017-04-28 | 2017-06-23 | 深圳市华星光电技术有限公司 | Display panel, pixel-driving circuit and its driving method |
| CN107230452A (en) * | 2017-07-11 | 2017-10-03 | 深圳市华星光电半导体显示技术有限公司 | A kind of pixel-driving circuit and driving method |
| CN107393475A (en) * | 2017-08-10 | 2017-11-24 | 京东方科技集团股份有限公司 | Pixel-driving circuit, image element driving method and display device |
-
2018
- 2018-07-04 CN CN201810725978.2A patent/CN108847183B/en active Active
- 2018-09-04 WO PCT/CN2018/103900 patent/WO2020006854A1/en not_active Ceased
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1490779A (en) * | 2002-06-11 | 2004-04-21 | ����Sdi��ʽ���� | Light-emitting display, light-emitting display panel, and driving method thereof |
| US20090027312A1 (en) * | 2007-07-23 | 2009-01-29 | Min Koo Han | Organic light emitting display |
| CN101609839A (en) * | 2008-06-17 | 2009-12-23 | 三星移动显示器株式会社 | Pixel and organic light emitting display device using same |
| US20130249413A1 (en) * | 2012-03-21 | 2013-09-26 | Wintek Corporation | Light emitting element pixel driving circuit |
| CN103208254A (en) * | 2013-03-20 | 2013-07-17 | 合肥京东方光电科技有限公司 | Pixel circuit and driving method thereof, array substrate and display device |
| US20170053595A1 (en) * | 2015-08-17 | 2017-02-23 | Polyera Taiwan Corporation | Pixel circuit |
| CN105469743A (en) * | 2016-01-29 | 2016-04-06 | 深圳市华星光电技术有限公司 | Pixel compensating circuit, scanning driving circuit and panel display device |
| CN106448564A (en) * | 2016-12-20 | 2017-02-22 | 京东方科技集团股份有限公司 | OLED pixel circuit as well as driving method and display device thereof |
| CN106887210A (en) * | 2017-04-28 | 2017-06-23 | 深圳市华星光电技术有限公司 | Display panel, pixel-driving circuit and its driving method |
| CN107230452A (en) * | 2017-07-11 | 2017-10-03 | 深圳市华星光电半导体显示技术有限公司 | A kind of pixel-driving circuit and driving method |
| CN107393475A (en) * | 2017-08-10 | 2017-11-24 | 京东方科技集团股份有限公司 | Pixel-driving circuit, image element driving method and display device |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109243368A (en) * | 2018-11-13 | 2019-01-18 | 京东方科技集团股份有限公司 | Pixel circuit and its driving method, array substrate |
| CN109243368B (en) * | 2018-11-13 | 2021-04-27 | 京东方科技集团股份有限公司 | Pixel circuit and driving method thereof, and array substrate |
| CN111627375A (en) * | 2020-05-29 | 2020-09-04 | 上海天马微电子有限公司 | Driving circuit, driving method thereof and display device |
| CN114913803A (en) * | 2022-05-31 | 2022-08-16 | Tcl华星光电技术有限公司 | Pixel drive circuit and display panel |
| CN114913804A (en) * | 2022-05-31 | 2022-08-16 | Tcl华星光电技术有限公司 | Pixel driving circuit and display panel |
| CN114999368A (en) * | 2022-05-31 | 2022-09-02 | Tcl华星光电技术有限公司 | Pixel driving circuit and display panel |
| US12183279B2 (en) | 2022-05-31 | 2024-12-31 | Tcl China Star Optoelectronics Technology Co., Ltd. | Pixel driving circuit and display panel |
| CN114913803B (en) * | 2022-05-31 | 2025-07-04 | Tcl华星光电技术有限公司 | Pixel driving circuit and display panel |
| CN114913804B (en) * | 2022-05-31 | 2025-07-08 | Tcl华星光电技术有限公司 | Pixel driving circuit and display panel |
| US12394373B2 (en) | 2022-05-31 | 2025-08-19 | Tcl China Star Optoelectronics Technology Co., Ltd. | Pixel driving circuit and display panel |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020006854A1 (en) | 2020-01-09 |
| CN108847183B (en) | 2020-06-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108847183A (en) | A kind of pixel-driving circuit and display panel | |
| CN102982767B (en) | Pixel unit driving circuit, driving method and display device | |
| CN104409047B (en) | Pixel driving circuit, pixel driving method and display device | |
| CN204680360U (en) | A kind of image element circuit and display device | |
| CN105679244B (en) | AMOLED pixel-driving circuits and image element driving method | |
| CN103165080B (en) | Pixel circuit and driving method and display device thereof | |
| CN103258501B (en) | Pixel circuit and driving method thereof | |
| CN109785797B (en) | AMOLED pixel circuit | |
| US11222585B2 (en) | Pixel driving circuit and pixel driving method | |
| US20160064098A1 (en) | Shift register unit, method for driving the same, shift register and display device | |
| US20140176404A1 (en) | Pixel circuit for organic light emitting display and driving method thereof, organic light emitting display | |
| CN109509433A (en) | Pixel circuit, display device and image element driving method | |
| CN108922474A (en) | A kind of pixel compensation circuit and its driving method, AMOLED display panel | |
| CN104575372A (en) | AMOLED pixel driving circuit and driving method thereof as well as array substrate | |
| WO2016150232A1 (en) | Pixel driving circuit, driving method therefor, and display device | |
| CN106782365B (en) | A kind of gate driving circuit and driving method, display device | |
| CN109256094A (en) | Pixel circuit, pixel driving method, and display device | |
| US20170243535A1 (en) | Oled inverting circuit and display panel | |
| CN108335671B (en) | AMOLED pixel-driving circuit and driving method | |
| CN104464624A (en) | Pixel compensation circuit of active matrix organic light emitting diode display | |
| TW201207819A (en) | Inverter circuit and display | |
| CN104575389A (en) | Pixel circuit, driving method of pixel circuit, display panel and display device | |
| CN109872682A (en) | Pixel compensation circuit and display device | |
| CN102956201B (en) | Pixel circuit, driving method and display device of pixel circuit | |
| WO2019184150A1 (en) | Pixel drive circuit, and display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |