CN108492785A - A kind of pixel-driving circuit and its driving method, display device - Google Patents
A kind of pixel-driving circuit and its driving method, display device Download PDFInfo
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- CN108492785A CN108492785A CN201810276384.8A CN201810276384A CN108492785A CN 108492785 A CN108492785 A CN 108492785A CN 201810276384 A CN201810276384 A CN 201810276384A CN 108492785 A CN108492785 A CN 108492785A
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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
- G09G3/22—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]
- G09G3/3275—Details of drivers for data electrodes
- G09G3/3291—Details of drivers for data electrodes in which the data driver supplies a variable data voltage for setting the current through, or the voltage across, the light-emitting elements
Abstract
The present invention provides a kind of pixel-driving circuit and its driving method, display devices, are related to display technology field.Data voltage is written to memory module by Data write. module in the present invention, offset voltage is written to memory module in data voltage compensating module, by the data voltage range for reducing data line input, and provide a linear offset voltage by data voltage compensating module, to provide voltage required when driving transistor driving luminescent device shines, so that display panel reaches required optical requirement, simultaneously, when data voltage switches, since the range of data voltage reduces, the electromagnetic interference inside display panel can be reduced, and the coupled noise between the pixel corresponding first supply voltage Vdd and initial voltage Vint of adjacent column, mitigate the crosstalk phenomenon of display panel.
Description
Technical field
The present invention relates to display technology fields, are filled more particularly to a kind of pixel-driving circuit and its driving method, display
It sets.
Background technology
OLED (Organic Light Emitting Diode, Organic Light Emitting Diode) display device is as next-generation aobvious
Showing device causes prodigious concern because of its quick response speed, high-luminous-efficiency, high brightness and wide viewing angle, and OLED is aobvious
Showing device is to control the electric current flowed in Organic Light Emitting Diode by driving transistor to show image.
As depicted in figs. 1 and 2, Fig. 1 is a kind of existing pixel-driving circuit, and Fig. 2 is a kind of existing pixel driver electricity
The working timing figure on road, in the pixel-driving circuit, when the gray value of pixel is 0, required data voltage is about 4V,
When the gray value of pixel is 255, required data voltage is about 2V, so the range of data voltage is 2~4V.
When the pixel needs in picture are switched to gray value 255 from gray value 0, data voltage then needs to switch to from 4V
0V, when data voltage switches, may result in corresponding first electricity of pixel of adjacent column since the AC voltage difference of data voltage is big
Voltage Vdd and initial voltage Vint generate larger coupled noise in source.
Invention content
A kind of pixel-driving circuit of present invention offer and its driving method, display device, to solve existing pixel driver
Circuit is since the AC voltage difference of data voltage is big, when data voltage switches, leads to corresponding first power supply of the pixel of adjacent column
Voltage Vdd and initial voltage Vint lead to the problem of larger coupled noise.
To solve the above-mentioned problems, the invention discloses a kind of pixel-driving circuits, including：Data voltage compensating module,
Data write. module, light emitting control module, the first reseting module, memory module, driving transistor and luminescent device；
The data voltage compensating module connects with compensation voltage signal end, grid control terminal and the memory module respectively
It connects, is configured as that offset voltage is written to the memory module；
The Data write. module is connect with grid line, data line, the driving transistor and the memory module respectively, quilt
It is configured to that data voltage is written to the memory module；
The light emitting control module respectively with the first power voltage terminal, luminous signal end, the memory module, the driving
Transistor is connected with the luminescent device, is configured as the first supply voltage for inputting first power voltage terminal and institute is written
Memory module is stated, and the luminescent device is driven to shine；
First reseting module grid with reset signal end, initial voltage signal end and the driving transistor respectively
Connection, is configured as resetting the grid of the driving transistor；
The grid of the driving transistor is connect with the memory module, the first pole and the number of the driving transistor
It is connected according to writing module, the second pole of the driving transistor is connect with the light emitting control module；
The anode of the luminescent device is connect with the light emitting control module, the cathode and second source of the luminescent device
Voltage end connects.
Preferably, the data voltage compensating module includes the first transistor；
The grid of the first transistor is connect with the grid control terminal, the first pole of the first transistor with it is described
Compensation voltage signal end connects, and the second pole of the first transistor is connect with the memory module.
Preferably, the Data write. module includes second transistor and third transistor；
The grid of the second transistor is connect with the grid line, the first pole and the data line of the second transistor
Connection, the second pole of the second transistor is connect with the first pole of the driving transistor；
The grid of the third transistor is connect with the grid line, and the first pole of the third transistor is brilliant with the driving
Second pole of body pipe connects, and the second pole of the third transistor is connect with memory module.
Preferably, the light emitting control module includes the 4th transistor, the 5th transistor and the 6th transistor；
The grid of 4th transistor is connect with the luminous signal end, the first pole of the 4th transistor with it is described
First power voltage terminal connects, and the second pole of the 4th transistor is connect with the first pole of the 5th transistor；
The grid of 5th transistor is connect with the luminous signal end, the second pole of the 5th transistor with it is described
Memory module connects；
The grid of 6th transistor is connect with the luminous signal end, the first pole of the 6th transistor with it is described
Second pole of driving transistor connects, and the second pole of the 6th transistor is connect with the luminescent device.
Preferably, first reseting module includes the 7th transistor；
The grid of 7th transistor is connect with the reset signal end, the first pole of the 7th transistor with it is described
Initial voltage signal end connects, and the second pole of the 7th transistor is connect with the grid of the driving transistor.
Preferably, the memory module includes storage capacitance, the first end of the storage capacitance and the driving transistor
Grid connection, the second end of the storage capacitance connect with the data voltage compensating module.
Preferably, the pixel-driving circuit further includes the second reseting module, and second reseting module includes the 8th brilliant
Body pipe；
The grid of 8th transistor is connect with the grid line, the first pole and the initial electricity of the 8th transistor
Signal end connection is pressed, the second pole of the 8th transistor is connect with the anode of the luminescent device.
Preferably, the compensation voltage signal end is connected to driving chip with the data line；
The driving chip is configured as to compensation voltage signal end input offset voltage, and to the data
Line input data voltage.
To solve the above-mentioned problems, the invention also discloses a kind of driving methods of pixel-driving circuit, are applied to driving
Above-mentioned pixel-driving circuit, the driving method include：
The grid of driving transistor is resetted；
Data voltage is written to memory module；
Offset voltage is written to the memory module；
Memory module is written into first supply voltage of the first power voltage terminal input, and luminescent device is driven to shine.
To solve the above-mentioned problems, in addition the present invention discloses a kind of display device, including above-mentioned pixel-driving circuit.
Compared with prior art, the present invention includes following advantages：
Data voltage is written to memory module by Data write. module, data voltage compensating module is written to memory module
Offset voltage provides one linearly by reducing the data voltage range of data line input, and by data voltage compensating module
Offset voltage, to provide required voltage when driving transistor driving luminescent device shines so that needed for display panel reaches
Optical requirement, meanwhile, when data voltage switches, due to data voltage range reduce, can reduce inside display panel
Coupled noise between the corresponding first supply voltage Vdd and initial voltage Vint of the pixel of electromagnetic interference and adjacent column, subtracts
The crosstalk phenomenon of light display panel.
Description of the drawings
Fig. 1 shows a kind of schematic diagram of existing pixel-driving circuit；
Fig. 2 shows a kind of existing working timing figures of pixel-driving circuit；
Fig. 3 shows a kind of schematic diagram of pixel-driving circuit of the embodiment of the present invention；
Fig. 4 shows a kind of working timing figure of pixel-driving circuit of the embodiment of the present invention；
Fig. 5 shows a kind of circuit diagram of pixel-driving circuit of the embodiment of the present invention；
Fig. 6 shows the circuit diagram of another pixel-driving circuit of the embodiment of the present invention.
Specific implementation mode
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is described in further detail.
Embodiment one
With reference to Fig. 3, a kind of schematic diagram of pixel-driving circuit of the embodiment of the present invention is shown.
The pixel-driving circuit includes：Data voltage compensating module 11, Data write. module 12, light emitting control module 13,
First reseting module 14, memory module 15, driving transistor T9 and luminescent device D.
Data voltage compensating module 11 respectively with compensation voltage signal end VB, grid control terminal Gate1 and memory module 15
Connection is configured as that offset voltage Vb is written to memory module 15.
Data write. module 12 is connect with grid line Gate, data line Date, driving transistor T9 and memory module 15 respectively,
It is configured as that data voltage Vdata is written to memory module 15.
Light emitting control module 13 is brilliant with the first power voltage terminal VDD, luminous signal end EM, memory module 15, driving respectively
Body pipe T9 is connected with luminescent device D, is configured as depositing the first supply voltage Vdd write-ins of the first power voltage terminal VDD inputs
Module 15 is stored up, and luminescent device D is driven to shine.
First reseting module 14 respectively with reset signal end Reset, initial voltage signal end VINT and driving transistor T9
Grid connection, be configured as resetting the grid of driving transistor T9.
The grid of driving transistor T9 is connect with memory module 15, the first pole of driving transistor T9 and Data write. module
12 connections, the second pole of driving transistor T9 is connect with light emitting control module 13.
The anode of luminescent device D is connect with light emitting control module 13, cathode and the second source voltage end of luminescent device D
VSS connections.
With reference to Fig. 4, a kind of working timing figure of pixel-driving circuit of the embodiment of the present invention is shown.
The reset signal of first stage T1, reset signal end Reset input is effective so that and the first reseting module 14 is opened,
Under the control of reset signal, the first reseting module 14 resets the grid of driving transistor T9, by driving transistor T9
Grid be reset to initial voltage Vint.
The grid signal of second stage T2, grid line Gate inputs are effective so that Data write. module 12 is opened, and is believed in grid
Number control under, data voltage Vdata is written to memory module 15 in Data write. module 12.
The grid control signal of phase III T3, the Gate1 inputs of grid control terminal are effective so that data voltage compensating module
11 open, and under the control of grid control signal, offset voltage Vb is written to memory module 15 in data voltage compensating module 11.
The luminous signal of fourth stage T4, luminous signal end EM input is effective so that light emitting control module 13 is opened, and is being sent out
Under the control of optical signal, light emitting control module 13 stores the first supply voltage Vdd write-ins that the first power voltage terminal VDD is inputted
Module 15, and luminescent device D is driven to shine.
In embodiments of the present invention, while reducing the range of data voltage Vdata of data line Date inputs, in order to
So that display panel reaches required optical requirement, need to provide a linear compensation electricity by data voltage compensating module 11
Pressure；When pressure difference when data voltage switches is bigger, then the coupled noise that adjacent column pixel generates is more apparent, and the present invention is by subtracting
The range of small data voltage Vdata can reduce the electromagnetic interference inside display panel in switch data voltage Vdata, and
Coupled noise between the pixel corresponding first supply voltage Vdd and initial voltage Vint of adjacent column, mitigates display panel
Crosstalk phenomenon.
With reference to Fig. 5, a kind of circuit diagram of pixel-driving circuit of the embodiment of the present invention is shown.
In the pixel-driving circuit, data voltage compensating module 11 includes the first transistor T1；The grid of the first transistor T1
Pole is connect with grid control terminal Gate1, and the first pole of the first transistor T1 is connect with compensation voltage signal end VB, the first transistor
The second pole of T1 is connect with memory module 15.
Data write. module 12 includes second transistor T2 and third transistor T3；The grid and grid line of second transistor T2
First pole of Gate connections, second transistor T2 is connect with data line Data, the second pole and the driving crystal of second transistor T2
The first pole of pipe T9 connects；The grid of third transistor T3 is connect with grid line Gate, the first pole and the driving of third transistor T3
The second pole of transistor T9 connects, and the second pole of third transistor T3 is connect with memory module 15.
Light emitting control module 13 includes the 4th transistor T4, the 5th transistor T5 and the 6th transistor T6；4th transistor
The grid of T4 is connect with luminous signal end EM, and the first pole of the 4th transistor T4 is connect with the first power voltage terminal VDD, and the 4th is brilliant
The second pole of body pipe T4 is connect with the first pole of the 5th transistor T5；The grid of 5th transistor T5 connects with luminous signal end EM
It connects, the second pole of the 5th transistor T5 is connect with memory module 15；The grid of 6th transistor T6 is connect with luminous signal end EM,
The first pole of 6th transistor T6 is connect with the second pole of driving transistor T9, the second pole of the 6th transistor T6 and luminescent device
D connections.
First reseting module 14 includes the 7th transistor T7；The grid of 7th transistor T7 connects with reset signal end Reset
It connects, the first pole of the 7th transistor T7 is connect with initial voltage signal end VINT, and the second pole of the 7th transistor T7 and driving are brilliant
The grid of body pipe T9 connects.
Memory module 15 includes storage capacitance Cst, and the grid of the first end a and driving transistor T9 of storage capacitance Cst connect
It connects, the second end b of storage capacitance Cst is connect with data voltage compensating module 11.
Specifically, the grid of the first transistor T1 is connect with grid control terminal Gate1, the first pole of the first transistor T1 with
The VB connections of compensation voltage signal end, the second pole of the first transistor T1 are connect with the second end b of storage capacitance Cst；Third crystal
The grid of pipe T3 is connect with grid line Gate, and the first pole of third transistor T3 is connect with the second pole of driving transistor T9, third
The second pole of transistor T3 is connect with the first end a of storage capacitance Cst；The grid of 5th transistor T5 connects with luminous signal end EM
It connects, the second pole of the 5th transistor T5 is connect with the second end b of storage capacitance Cst.
With reference to working timing figure shown in Fig. 4, the course of work of pixel-driving circuit shown in fig. 5 is carried out brief
Explanation.
The reset signal of first stage T1, reset signal end Reset input is low level, the grid letter of grid line Gate inputs
Number it is high level, the grid control signal of grid control terminal Gate1 input is high level, the luminous letter of luminous signal end EM inputs
Number be high level, the 7th transistor T7 opens under the control of reset signal, according to initial voltage signal end VINT inputs just
The grid of driving transistor T9 is reset to initial voltage Vint by beginning voltage Vint；At this point, driving transistor T9 is opened, still
Since the 6th transistor T6 is closed, luminescent device D will not shine.
The grid signal of second stage T2, grid line Gate inputs are low level, the reset letter of reset signal end Reset inputs
Number it is high level, the grid control signal of grid control terminal Gate1 input is high level, the luminous letter of luminous signal end EM inputs
Number be high level, second transistor T2 and third transistor T3 are opened under the control of grid signal, due to driving transistor T9
It opens, then by the first end a of the data line Data data voltage Vdata write-in storage capacitances Cst inputted.
The grid control signal of phase III T3, the Gate1 inputs of grid control terminal are low level, reset signal end Reset
The reset signal of input is high level, and the grid signal of grid line Gate inputs is high level, and EM inputs in luminous signal end shine
Signal is high level, and the first transistor T1 is opened under the control of grid control signal, by compensation voltage signal end VB inputs
The second end b of offset voltage Vb write-in storage capacitances Cst, at this point, the voltage Va=Vdata+ of the first end of storage capacitance Cst
Vb。
The luminous signal of fourth stage, luminous signal end EM inputs is low level, the reset of reset signal end Reset inputs
Signal is high level, and the grid signal of grid line Gate inputs is high level, the grid control signal of grid control terminal Gate1 inputs
For high level, the 4th transistor T4, the 5th transistor T5 and the 6th transistor T6 are opened under the control of luminous signal, and the 4th is brilliant
Body pipe T4 and the 5th transistor T5 is by the first supply voltage Vdd write-in storage capacitances Cst's of the first power voltage terminal VDD inputs
Second end b, at this point, the grid electricity of the voltage Va=Vdata+Vb+Vdd of the first end a of storage capacitance Cst, driving transistor T9
The voltage Va for pressing first end as of the Vg equal to storage capacitance Cst, when driving transistor T9 is opened, since the 6th transistor T6 is beaten
It opens, then controls luminescent device D and shine, the light emission luminance of luminescent device is related to the grid voltage Vg of driving transistor T9.
For example, the first supply voltage Vdd of the first power voltage terminal VDD inputs is 4.6V, when pixel needs ash to be shown
When angle value Gray is 0, according to existing pixel-driving circuit, due to there is no an offer offset voltage, the first of storage capacitance Cst
The voltage Va=Vdata+Vdd for holding a, then it is 4V to need the data voltage Vdata that data line Data is inputted, according to the present invention's
Pixel-driving circuit can reduce data voltage due to the voltage Va=Vdata+Vb+Vdd of the first end a of storage capacitance Cst
The input of Vdata, and the part that data voltage Vdata reduces is provided by offset voltage Vb, when compensation voltage signal end, VB is defeated
When the offset voltage Vb entered is 2V, then the data voltage Vdata of data line Data inputs is 2V；When pixel needs gray scale to be shown
When value Gray is 255, the data voltage Vdata that existing pixel-driving circuit needs is 2V, is driven according to the pixel of the present invention
Dynamic circuit, then input data voltage Vdata is 1V, and offset voltage Vb is 1V；Therefore, pass through compensation voltage signal end VB inputs
Offset voltage Vb so that ranging from 1~2V of the data voltage Vdata of data line Data inputs drives relative to existing pixel
The data voltage Vdata ranges of dynamic circuit, data line Data inputs reduce.
In embodiments of the present invention, when data voltage Vdata switches, since the AC voltage difference of data voltage Vdata is small,
The corresponding first supply voltage Vdd of pixel and initial voltage of the electromagnetic interference and adjacent column inside display panel can be reduced
Coupled noise between Vint mitigates the crosstalk phenomenon of display panel.
It should be noted that the first transistor T1 to the 7th transistor T7 used in the embodiment of the present invention, and driving
Transistor T9 is P-type transistor, is connected when grid is low level, is ended when grid is high level, in order to distinguish crystal
Source electrode therein is known as the first pole by the two poles of the earth of pipe in addition to grid, and drain electrode is known as the second pole.Wherein, the first supply voltage
It is high level to hold the first supply voltage Vdd of VDD inputs, and the second source voltage Vss of second source voltage end VSS inputs is low
The initial voltage Vint of level, initial voltage signal end VINT inputs is also low level.
Certainly, the first transistor T1 to the 7th transistor T7 and driving transistor T9 used in the embodiment of the present invention
It may be N-type transistor, be connected when grid is high level, ended when grid is low level, but reset signal end
The reset signal of Reset inputs, the grid signal of grid line Gate inputs, the grid control signal of grid control terminal Gate1 inputs,
And the level height of the luminous signal of luminous signal end EM inputs, it is intended to different with level height when P-type transistor.
In embodiments of the present invention, data voltage, data voltage compensation are written to memory module by Data write. module
Offset voltage is written to memory module in module, by reducing the data voltage range of data line input, and is mended by data voltage
It repays module and one linear offset voltage is provided, to provide voltage required when driving transistor driving luminescent device shines, make
It obtains display panel and reaches required optical requirement, meanwhile, it, can since the range of data voltage reduces when data voltage switches
Reduce the corresponding first supply voltage Vdd of pixel and initial voltage of the electromagnetic interference and adjacent column inside display panel
Coupled noise between Vint mitigates the crosstalk phenomenon of display panel.
Embodiment two
With reference to Fig. 6, the circuit diagram of another pixel-driving circuit of the embodiment of the present invention is shown.
On the basis of Fig. 5, which further includes the second reseting module 16, and the second reseting module 16 includes the
Eight transistor T8；The grid of 8th transistor T8 is connect with grid line Gate, and the first pole and the initial voltage of the 8th transistor T8 are believed
Number end VINT connections, the second pole of the 8th transistor T8 is connect with the anode of luminescent device D.
The grid signal of second stage T2, grid line Gate inputs are low level, controls of the 8th transistor T8 in grid signal
System is lower to be opened, and the anode of the initial voltage Vint write-in luminescent devices D of initial voltage signal end VINT inputs is shone with improving
The contrast of device D.
8th transistor T8 used in the embodiment of the present invention is P-type transistor, it is of course also possible to use N-type transistor.
Wherein, luminescent device D can be Organic Light Emitting Diode.
In embodiments of the present invention, compensation voltage signal end VB and data line Data is connected to driving chip, drives core
Piece is configured as to compensation voltage signal end VB input offset voltage Vb, and to data line Date input data voltages
Vdata。
By the way that the thermal compensation signal line of compensation voltage signal end VB will be accessed, it is connected to driving chip with data line Data,
Data voltage Vdata and offset voltage Vb is provided by the same driving chip, simplifies the structure of display panel, the driving chip
Alternatively referred to as Driver IC.
In embodiments of the present invention, data voltage, data voltage compensation are written to memory module by Data write. module
Offset voltage is written to memory module in module, by reducing the data voltage range of data line input, and is mended by data voltage
It repays module and one linear offset voltage is provided, to provide voltage required when driving transistor driving luminescent device shines, make
It obtains display panel and reaches required optical requirement, meanwhile, it, can since the range of data voltage reduces when data voltage switches
Reduce the corresponding first supply voltage Vdd of pixel and initial voltage of the electromagnetic interference and adjacent column inside display panel
Coupled noise between Vint mitigates the crosstalk phenomenon of display panel.
Embodiment three
The embodiment of the present invention additionally provides a kind of display device, which is characterized in that including above-mentioned pixel-driving circuit.
The description of embodiment one and embodiment two is referred to about the specific descriptions of pixel-driving circuit, the present invention is implemented
Example repeats no more this.
In practical applications, which can be：Mobile phone, tablet computer, television set, display, laptop,
Any product or component with display function such as navigator.
In embodiments of the present invention, which includes pixel-driving circuit, by Data write. module to storage mould
Data voltage is written in block, and offset voltage is written to memory module in data voltage compensating module, by the number for reducing data line input
A linear offset voltage is provided according to voltage range, and by data voltage compensating module, to provide driving transistor driving
Luminescent device voltage required when shining so that display panel reaches required optical requirement, meanwhile, when data voltage switches
When, since the range of data voltage reduces, the pixel that can reduce the electromagnetic interference and adjacent column inside display panel is corresponding
Coupled noise between first supply voltage Vdd and initial voltage Vint, mitigates the crosstalk phenomenon of display panel.
For embodiment of the method above-mentioned, for simple description, therefore it is all expressed as a series of combination of actions, still
Those skilled in the art should understand that the present invention is not limited by the described action sequence, because according to the present invention, it is certain
Step can be performed in other orders or simultaneously.Next, those skilled in the art should also know that, it is described in the specification
Embodiment belong to preferred embodiment, involved action and module are not necessarily essential to the invention.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with
The difference of other embodiment, the same or similar parts between the embodiments can be referred to each other.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that process, method, commodity or equipment including a series of elements include not only that
A little elements, but also include other elements that are not explicitly listed, or further include for this process, method, commodity or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except there is also other identical elements in process, method, commodity or the equipment including the element.
Above to a kind of pixel-driving circuit provided by the present invention and its driving method, display device, carry out in detail
It introduces, principle and implementation of the present invention are described for specific case used herein, the explanation of above example
It is merely used to help understand the method and its core concept of the present invention；Meanwhile for those of ordinary skill in the art, according to this
The thought of invention, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification is not answered
It is interpreted as limitation of the present invention.
Claims (10)
1. a kind of pixel-driving circuit, which is characterized in that including：Data voltage compensating module, Data write. module, light emitting control
Module, the first reseting module, memory module, driving transistor and luminescent device；
The data voltage compensating module is connect with compensation voltage signal end, grid control terminal and the memory module respectively, quilt
It is configured to that offset voltage is written to the memory module；
The Data write. module is connect with grid line, data line, the driving transistor and the memory module respectively, is configured
For data voltage is written to the memory module；
The light emitting control module respectively with the first power voltage terminal, luminous signal end, the memory module, the driving crystal
Pipe is connected with the luminescent device, be configured as by the first supply voltage that first power voltage terminal inputs be written described in deposit
Module is stored up, and the luminescent device is driven to shine；
First reseting module connects with the grid at reset signal end, initial voltage signal end and the driving transistor respectively
It connects, is configured as resetting the grid of the driving transistor；
The grid of the driving transistor is connect with the memory module, and the first pole and the data of the driving transistor are write
Enter module connection, the second pole of the driving transistor is connect with the light emitting control module；
The anode of the luminescent device is connect with the light emitting control module, cathode and the second source voltage of the luminescent device
End connection.
2. pixel-driving circuit according to claim 1, which is characterized in that the data voltage compensating module includes first
Transistor；
The grid of the first transistor is connect with the grid control terminal, the first pole and the compensation of the first transistor
Voltage signal end connects, and the second pole of the first transistor is connect with the memory module.
3. pixel-driving circuit according to claim 1, which is characterized in that the Data write. module includes the second crystal
Pipe and third transistor；
The grid of the second transistor is connect with the grid line, and the first pole and the data line of the second transistor connect
It connects, the second pole of the second transistor is connect with the first pole of the driving transistor；
The grid of the third transistor is connect with the grid line, the first pole and the driving transistor of the third transistor
The second pole connection, the second pole of the third transistor is connect with memory module.
4. pixel-driving circuit according to claim 1, which is characterized in that the light emitting control module includes the 4th crystal
Pipe, the 5th transistor and the 6th transistor；
The grid of 4th transistor is connect with the luminous signal end, the first pole and described first of the 4th transistor
Power voltage terminal connects, and the second pole of the 4th transistor is connect with the first pole of the 5th transistor；
The grid of 5th transistor is connect with the luminous signal end, the second pole and the storage of the 5th transistor
Module connects；
The grid of 6th transistor is connect with the luminous signal end, the first pole and the driving of the 6th transistor
Second pole of transistor connects, and the second pole of the 6th transistor is connect with the luminescent device.
5. pixel-driving circuit according to claim 1, which is characterized in that first reseting module includes the 7th crystal
Pipe；
The grid of 7th transistor is connect with the reset signal end, the first pole of the 7th transistor with it is described initial
Voltage signal end connects, and the second pole of the 7th transistor is connect with the grid of the driving transistor.
6. pixel-driving circuit according to claim 1, which is characterized in that the memory module includes storage capacitance, institute
The first end for stating storage capacitance is connect with the grid of the driving transistor, the second end of the storage capacitance and data electricity
Press compensating module connection.
7. pixel-driving circuit according to claim 1, which is characterized in that the pixel-driving circuit further includes second multiple
Position module, second reseting module include the 8th transistor；
The grid of 8th transistor is connect with the grid line, and the first pole and the initial voltage of the 8th transistor are believed
Number end connection, the second pole of the 8th transistor is connect with the anode of the luminescent device.
8. pixel-driving circuit according to claim 1, which is characterized in that the compensation voltage signal end and the data
Line is connected to driving chip；
The driving chip is configured as to compensation voltage signal end input offset voltage, and defeated to the data line
Enter data voltage.
9. a kind of driving method of pixel-driving circuit, which is characterized in that be applied to driving such as any one of claim 1-8
Pixel-driving circuit, the driving method include：
The grid of driving transistor is resetted；
Data voltage is written to memory module；
Offset voltage is written to the memory module；
Memory module is written into first supply voltage of the first power voltage terminal input, and luminescent device is driven to shine.
10. a kind of display device, which is characterized in that include the pixel-driving circuit as described in any one of claim 1-8.
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