CN110010064A - Pixel-driving circuit, display screen and electronic equipment - Google Patents
Pixel-driving circuit, display screen and electronic equipment Download PDFInfo
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- CN110010064A CN110010064A CN201910319792.1A CN201910319792A CN110010064A CN 110010064 A CN110010064 A CN 110010064A CN 201910319792 A CN201910319792 A CN 201910319792A CN 110010064 A CN110010064 A CN 110010064A
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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]
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Control Of El Displays (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
This application discloses a kind of pixel-driving circuit, the source electrode of switching transistor is connect with data line, and the grid of switching transistor is connect with scan line, and the drain electrode of switching transistor and the first end of storage capacitance connect, the second end ground connection of storage capacitance；The source electrode of driving transistor is connect with supply voltage, drives the grid of transistor to connect simultaneously with the first end of the drain electrode of switching transistor and storage capacitance, the drain electrode of transistor is driven to connect with display pixel, the other end ground connection of display pixel；The first end of compensating electric capacity is connected to the drain electrode of switching transistor simultaneously, drives the grid of transistor and the first end of storage capacitance, and the second end of compensating electric capacity connects pixel compensation circuit；Pixel compensation circuit is used to monitor brightness change caused by display pixel shifts because of the threshold voltage of driving transistor, brightness change is converted into voltage increase, and charged according to voltage increase to compensating electric capacity, to carry out current compensation to display pixel by compensating electric capacity.
Description
Technical field
The application belongs to field of display technology more particularly to a kind of pixel-driving circuit, display screen and electronic equipment.
Background technique
In the related technology, OLED (Organic Light-Emitting Diode, Organic Light Emitting Diode) pixel driver
For driving the threshold voltage of the thin film transistor (TFT) of OLED that can shift at any time in circuit.When for driving, OLED's is thin
When the threshold voltage of film transistor shifts, the light emission luminance of OLED pixel will appear decaying.
Summary of the invention
The embodiment of the present application provides a kind of pixel-driving circuit, display screen and electronic equipment, can be effectively to display picture
The light emission luminance decaying of element compensates.
The embodiment of the present application provides a kind of pixel-driving circuit, is applied to display screen, including display pixel, switch crystal
Pipe, driving transistor, storage capacitance, compensating electric capacity, pixel compensation circuit；
The source electrode of the switching transistor is connect with the data line of the display screen, the grid of the switching transistor and institute
The scan line connection of display screen is stated, the drain electrode of the switching transistor is connect with the first end of the storage capacitance, the storage
The second end of capacitor is grounded；
It is described driving transistor source electrode connect with supply voltage, it is described drive transistor grid and meanwhile with the switch
The connection of the first end of the drain electrode of transistor and the storage capacitance, the drain electrode of the driving transistor and the display pixel connect
It connects, the other end ground connection of the display pixel；
The first end of the compensating electric capacity is connected to the grid of the drain electrode of the switching transistor, the driving transistor simultaneously
The second end of the first end of pole and the storage capacitance, the compensating electric capacity connects the pixel compensation circuit；
The pixel compensation circuit is used to monitor the display pixel and draws because the threshold voltage of driving transistor shifts
The brightness change is converted into voltage increase by the brightness change risen, and according to the voltage increase to the compensation electricity
Appearance charges, to carry out current compensation to the display pixel by the compensating electric capacity.
The embodiment of the present application provides a kind of display screen, and the pixel in the pixel display screen has institute provided in this embodiment
State pixel-driving circuit.
The embodiment of the present application provides a kind of electronic equipment, and the electronic equipment has display screen provided in this embodiment.
Pixel-driving circuit, display screen and electronic equipment provided by the embodiments of the present application, can be effectively to display pixel
Light emission luminance decaying compensate.
Detailed description of the invention
With reference to the accompanying drawing, it is described in detail by the specific embodiment to the application, the technical solution of the application will be made
And its advantages are apparent.
Fig. 1 is the structural schematic diagram of pixel-driving circuit in the related technology.
Fig. 2 is the first structural schematic diagram of pixel-driving circuit provided by the embodiments of the present application.
Fig. 3 is second of structural schematic diagram of pixel-driving circuit provided by the embodiments of the present application.
Fig. 4 is the third structural schematic diagram of pixel-driving circuit provided by the embodiments of the present application.
Fig. 5 is the 4th kind of structural schematic diagram of pixel-driving circuit provided by the embodiments of the present application.
Fig. 6 is the 5th kind of structural schematic diagram of pixel-driving circuit provided by the embodiments of the present application.
Fig. 7 is the 6th kind of structural schematic diagram of pixel-driving circuit provided by the embodiments of the present application.
Fig. 8 is the structural schematic diagram of electronic equipment provided by the embodiments of the present application.
Specific embodiment
Diagram is please referred to, wherein identical component symbol represents identical component, the principle of the application is to implement one
It is illustrated in computing environment appropriate.The following description be based on illustrated by the application specific embodiment, should not be by
It is considered as limitation the application other specific embodiments not detailed herein.
Referring to Fig. 1, Fig. 1 is the driving circuit of display pixel in the related technology comprising thin film transistor (TFT) T1, film
Transistor T2, storage capacitance and display pixel (such as OLED display pixel).Wherein, one end of storage capacitance is connected to film simultaneously
The drain electrode of transistor T1 and the grid of thin film transistor (TFT) T2, the other end ground connection of storage capacitance.One end of display pixel is connected to
The drain electrode of thin film transistor (TFT) T2, the other end ground connection of display pixel.Display pixel driving circuit industry shown in Fig. 1 is referred to as
2T1C structure.
Wherein, thin film transistor (TFT) T1 is switch TFT, is controlled by scanning-line signal Gate, for controlling data line signal
The entrance of Data, thin film transistor (TFT) T1 are the charge switch for controlling storage capacitance.Another thin film transistor (TFT) T2 is driving TFT,
For driving display pixel, control passes through the electric current of the display pixel.Storage capacitance is primarily used to storage Data signal in turn
T2 is controlled to the driving current of display pixel.After scanning-line signal Gate is opened, the voltage of data line signal Data is linked into thin
Film transistor T2, and be stored in storage capacitance, so that thin film transistor (TFT) T2 is constantly on state, display pixel is sent out
Light.
Since the threshold voltage and channel mobility of thin film transistor (TFT) are non-uniform, the threshold voltage in spatial distribution
It can shift at any time with channel mobility, cause the light emission luminance of display pixel to be decayed, and then lead to display screen
Brightness leads to the problem of non-uniform.
Referring to Fig. 2, the embodiment of the present application provides a kind of pixel-driving circuit.The pixel-driving circuit can be applied to show
Display screen.The pixel-driving circuit may include display pixel, switching transistor, driving transistor, storage capacitance C, compensating electric capacity
C1 and pixel compensation circuit.
Wherein, the source electrode of switching transistor can be connect with the data line (Data Line) of display screen, the switching transistor
Grid can be connect with the scan line (Gate Line) of the display screen, the drain electrode of the switching transistor can be with storage capacitance C
First end connection, storage capacitance C second termination can be grounded.
The source electrode of driving transistor can be connect with supply voltage, and the grid of the driving transistor can be brilliant with switch simultaneously
The drain electrode of body pipe and the first end connection of storage capacitance, the drain electrode of the driving transistor are connect with display pixel.The display picture
The other end of element can be grounded.
In one embodiment, which can be OLED pixel.
The first end of compensating electric capacity C1 can be connected to simultaneously switching transistor drain electrode, drive transistor grid and
The first end of storage capacitance C.The second end of the compensating electric capacity can connect pixel compensation circuit.
Caused by pixel compensation circuit can be used for monitoring display pixel because driving the threshold voltage of transistor to shift
The brightness change is converted into voltage increase, and is charged according to the voltage increase to compensating electric capacity C1 by brightness change,
To carry out current compensation to display pixel by the compensating electric capacity.
In one embodiment, referring to Fig. 3, the pixel compensation circuit 10 in pixel-driving circuit 100 includes brightness
Monitoring unit 11, voltage computation unit 12, the first sectional pressure element 13 and control switch 14.It wherein, can in voltage computation unit 12
To include the second sectional pressure element 120.
Wherein, one end of brightness monitoring unit 11 is connected to supply voltage, the other end, the potentiometer of brightness monitoring unit 11
The one end for calculating unit 12 and the first sectional pressure element 13 is sequentially connected.The other end of first sectional pressure element 13 can be grounded.
In one embodiment, brightness monitoring unit 11 can for can it is photosensitive and can by the optical signal of display pixel turn
It is changed to the sensing element of electric signal, such as photo resistance etc..
One end of control switch 14 is connect with voltage computation unit 12 and the first sectional pressure element 13 simultaneously.The control switch 14
The other end connect with compensating electric capacity C1；
Brightness monitoring unit 11 can be used for monitoring in real time display pixel because the threshold voltage of driving transistor shifts
Caused brightness change.
Voltage computation unit 12 can judge whether to need to aobvious according to the brightness change that brightness monitoring unit 11 monitors
Show that pixel carries out current compensation.
When voltage computation unit 12 is judged to need to carry out electric current to display pixel according to the brightness change monitored in real time
When compensation, voltage computation unit 12 can trigger control switch 14 and be in closed state.Also, voltage computation unit 12 can incite somebody to action
The brightness change is converted into voltage increase by operation.Pixel compensation circuit 10 then can use the first sectional pressure element 13,
The voltage signal of two sectional pressure elements 120 and the data line from display screen, the both ends of control compensating electric capacity C1, which generate, to be corresponded to
The voltage difference of the voltage increase, to charge to compensating electric capacity C1, and by compensating electric capacity C1 to display pixel into
Row current compensation.
For example, brightness monitoring unit 11 is monitored by the brightness to OLED display pixel, monitors the OLED and show
Pixel causes brightness to change because the threshold voltage of driving transistor shifts.Brightness monitoring unit 11 can will be by showing
The electric signal data transfer that the brightness change value of pixel is converted to is to voltage computation unit 12.Voltage computation unit 12 can lead to
It is voltage increase needed for being used to carry out voltage compensation to OLED display pixel that calculating, which is crossed, by the electric signal numerical value conversion.When sweeping
It retouches line and turns on the switch transistor, when data line is passed to voltage signal, control switch 14 can be closed, and pixel compensation circuit 10 then may be used
To make the first end and second end of compensating electric capacity C1 generate voltage difference using the first sectional pressure element 13, the second sectional pressure element 120, with
The voltage signal being passed to from data line is set to charge compensating electric capacity C1.At this point, the voltage difference at the both ends compensating electric capacity C1
The voltage increase being calculated for voltage computation unit 12.
For example, brightness change of the voltage computation unit 12 according to OLED display pixel, voltage increase, which is calculated, is
0.1V, when scan line is opened, and data line is passed to voltage signal, the incoming voltage of the data line is 0.3V, then pixel compensation electricity
The voltage for making the second end of compensating electric capacity C1 using the first sectional pressure element 13 and the second sectional pressure element 120 can be located at by road 10
0.2V.Since the voltage of the first end of compensating electric capacity C1 is equal to the voltage 0.3V that data line is passed to, the i.e. both ends of compensating electric capacity C1
There are voltage difference, the incoming voltage of data line can charge to compensating electric capacity C1.In addition, the voltage that data line is passed to can also
To charge simultaneously to storage capacitance C.
It is understood that relative to 2T1C driving circuit shown in Fig. 1, pixel driver electricity provided in this embodiment
Road, when the data line no longer incoming voltage signal, driving transistor can be connected in storage capacitance C and compensating electric capacity C1, make
The light emission luminance of OLED display pixel is decayed relatively slow at any time, to realize to the current compensation of OLED display pixel, is made
The light emission luminance of OLED display pixel is compensated.That is, the present embodiment can effectively the light emission luminance to display pixel decay
It compensates.
In one embodiment, the calculated voltage increase of voltage computation unit 12 is △ V=△ Vth* (a+b+
Cgd1+Cgd2+Cgs2) ÷ C1, wherein △ Vth is the threshold voltage for the driving transistor being calculated according to brightness change
Offset, a are the capacitance of compensating electric capacity C1, and b is the capacitance of storage capacitance C, and Cgd1 is grid and the leakage of switching transistor
Parasitic capacitance value between pole, Cgd2 are the parasitic capacitance value driven between the grid and drain electrode of transistor, and Cgs2 is that driving is brilliant
Parasitic capacitance value between the grid and source electrode of body pipe.
In the present embodiment, △ Vth for brightness monitoring unit can carry out photosensitive monitoring to display pixel and by optical signal
Corresponding brightness decay is converted to the voltage value that electric signal obtains.In one embodiment, display pixel has a luminance
Spend initial value.When brightness monitoring unit carries out photosensitive monitoring to display pixel, by the corresponding brightness value of photosensitive obtained optical signal
It is compared with the light emission luminance initial value, the decaying of light emission luminance can be obtained, can counted according to the decaying of the light emission luminance
It calculates and obtains the offset △ Vth of the threshold voltage of driving transistor.
In one embodiment, the first sectional pressure element and the second sectional pressure element can be resistance.
Referring to Fig. 4, in one embodiment, the first sectional pressure element can be fixed resistance 131, the second sectional pressure element
It can be variable resistance 121.
For example, voltage computation unit 12 is obtained by calculation for compensating required voltage increase to display pixel
△ V is 0.1V.So, voltage computation unit 12 can use the first sectional pressure element and the second sectional pressure element to make compensating electric capacity
The voltage difference of both ends formation 0.1V.For example, the voltage of the first end of compensating electric capacity C1 is located at when data line is passed to voltage signal
0.3V, then the voltage of the second end of compensating electric capacity C1 should be located at 0.2V, to make the electricity of the both ends formation 0.1V of compensating electric capacity
Pressure difference is to charge to the compensating electric capacity.Pixel compensation circuit 10 can use variable resistance 121 and fixed resistance 131 to adjust
The voltage of the second end of compensating electric capacity C1 is saved, i.e. variable resistance 121 can make the of compensating electric capacity C1 by changing its resistance value
The voltage at two ends is located at 0.2V.
In one embodiment, when carrying out current compensation to display pixel using compensating electric capacity C1, display pixel
The structural schematic diagram of driving circuit can be as shown in Figure 5.
Referring to Fig. 6, in another embodiment, the first sectional pressure element can be variable electricity 132, the second sectional pressure element
It can be fixed resistance 122.
For example, voltage computation unit 12 is obtained by calculation for compensating required voltage increase to display pixel
For 0.1V.So, voltage computation unit 12 can use the first sectional pressure element and the second sectional pressure element to make the two of compensating electric capacity
End forms the voltage difference of 0.1V.For example, the voltage of the first end of compensating electric capacity C1 is located at when data line is passed to voltage signal
0.3V, then the voltage of the second end of compensating electric capacity C1 should be located at 0.2V, to make the electricity of the both ends formation 0.1V of compensating electric capacity
Pressure difference is to charge to the compensating electric capacity.Pixel compensation circuit 10 can use fixed resistance 122 and variable resistance 132 to adjust
The voltage of the second end of compensating electric capacity C1 is saved, i.e. variable resistance 132 can make the of compensating electric capacity C1 by changing its resistance value
The voltage at two ends is located at 0.2V.
In one embodiment, when not needing to carry out circuit compensation to display pixel, control switch 14 be may be at
Off-state, as shown in Figure 7.Also, pixel compensation circuit 10 also may be at open-circuit condition, rather than on-state.
The present embodiment also provides a kind of display screen, and the pixel in the display screen can have pixel provided in this embodiment and drive
Dynamic circuit.
The present embodiment also provides a kind of electronic equipment, which can have display screen, the pixel in the display screen
It can have pixel-driving circuit provided in this embodiment.
For example, referring to Fig. 8, Fig. 8 is the structural schematic diagram of electronic equipment 200 provided in an embodiment of the present invention.Electronics is set
Standby 200 include antenna assembly 210, memory 220, display screen 230, power supply 240 and processor 250.Those skilled in the art
It is appreciated that the structure of electronic equipment 200 shown in Fig. 8 does not constitute the restriction to electronic equipment 200.Electronic equipment 200
It may include perhaps combining certain components or different component layouts than illustrating more or fewer components.
Wherein, antenna assembly 210 may include radio circuit.Antenna assembly 210 can be set by wireless network and network
Standby (for example, server) or other electronic equipments (for example, smart phone) communicate, and complete and the network equipment or other electronic equipments
Between information transmit-receive.
Memory 220 can be used for storing application program and data.It include that can hold in the application program that memory 220 stores
Line program code.Application program can form various functional modules.Processor 250 is stored in answering for memory 220 by operation
With program, thereby executing various function application and data processing.
Display screen 230 can be used for showing by user is input to the information of electronic equipment 200 or is supplied to user information with
And the various graphical user interface of electronic equipment 200.These graphical user interface can by figure, text, icon, video and its
Any combination is constituted.Display screen 230 may include display panel.Display panel may include display pixel, and display pixel can be with
With pixel-driving circuit provided in this embodiment.
All parts of the power supply 240 for electron equipment 200 are powered.In some embodiments, power supply 240 can pass through
Power-supply management system and processor 250 are logically contiguous, to realize management charging, electric discharge, Yi Jigong by power-supply management system
The functions such as consumption management.
Processor 250 is the control centre of electronic equipment 200.Processor 250 is entire using various interfaces and connection
The various pieces of electronic equipment 200, by running or executing the application program being stored in memory 220, and calling storage
Data in memory 220 execute the various functions and processing data of electronic equipment 200, to carry out to electronic equipment 200
Integral monitoring.
In addition, electronic equipment 200 can also include camera module, bluetooth module etc., details are not described herein.
Pixel-driving circuit provided in an embodiment of the present invention, display screen and electronic equipment are described in detail above,
Used herein a specific example illustrates the principle and implementation of the invention, and the explanation of above embodiments is only used
The present invention is understood in help.Meanwhile for those skilled in the art, according to the thought of the present invention, in specific embodiment and
There will be changes in application range, in conclusion the contents of this specification are not to be construed as limiting the invention.
Claims (10)
1. a kind of pixel-driving circuit is applied to display screen, which is characterized in that brilliant including display pixel, switching transistor, driving
Body pipe, storage capacitance, compensating electric capacity, pixel compensation circuit；
The source electrode of the switching transistor is connect with the data line of the display screen, and the grid of the switching transistor is shown with described
The scan line of display screen connects, and the drain electrode of the switching transistor is connect with the first end of the storage capacitance, the storage capacitance
Second end ground connection；
It is described driving transistor source electrode connect with supply voltage, it is described drive transistor grid and meanwhile with the switch crystal
The drain electrode of the connection of the first end of the drain electrode of pipe and the storage capacitance, the driving transistor is connect with the display pixel,
The other end of the display pixel is grounded；
The first end of the compensating electric capacity be connected to simultaneously the drain electrode of the switching transistor, the driving transistor grid with
And the first end of the storage capacitance, the second end of the compensating electric capacity connect the pixel compensation circuit；
Caused by the pixel compensation circuit is used to monitor the display pixel because driving the threshold voltage of transistor to shift
The brightness change is converted into voltage increase by brightness change, and according to the voltage increase to the compensating electric capacity into
Row charging, to carry out current compensation to the display pixel by the compensating electric capacity.
2. pixel-driving circuit according to claim 1, which is characterized in that the pixel compensation circuit includes brightness monitoring
Unit, voltage computation unit, the first sectional pressure element and control switch, the voltage computation unit include the second sectional pressure element；
One end of the brightness monitoring unit is connected to supply voltage, the other end, the potentiometer of the brightness monitoring unit
Calculate unit, one end of first sectional pressure element is sequentially connected, the other end ground connection of first sectional pressure element；
One end of the control switch is connect with the voltage computation unit and first sectional pressure element simultaneously, and the control is opened
The other end of pass is connect with the second end of the compensating electric capacity；
Caused by the brightness monitoring unit is used to monitor the display pixel because driving the threshold voltage of transistor to shift
Brightness change；
When carrying out current compensation to the display pixel, the control switch closure, the voltage computation unit is used for basis
The brightness change calculates voltage increase, and the pixel compensation circuit utilizes first sectional pressure element, second partial pressure
The data line voltage signal of element and the display screen controls the compensating electric capacity both ends and generates corresponding to voltage increase
The voltage difference of amount to charge to the compensating electric capacity, and carries out electric current to the display pixel by the compensating electric capacity
Compensation.
3. pixel-driving circuit according to claim 2, which is characterized in that the calculated voltage of voltage computation unit
Incrementss △ V=△ Vth* (a+b+Cgd1+Cgd2+Cgs2) ÷ C1；
Wherein, △ Vth is the offset of the threshold voltage for the driving transistor being calculated according to the brightness change, a
For the capacitance of the compensating electric capacity, the b is the capacitance of the storage capacitance, and the Cgd1 is the switching transistor
Parasitic capacitance value between grid and drain electrode, the Cgd2 are the parasitic capacitance between the grid and drain electrode of the driving transistor
Value, the Cgs2 are the parasitic capacitance value between the grid and source electrode of the driving transistor.
4. pixel-driving circuit according to claim 2, which is characterized in that first sectional pressure element and second point described
Pressing element is resistance.
5. pixel-driving circuit according to claim 3, which is characterized in that first sectional pressure element is fixed resistance,
Second sectional pressure element is variable resistance.
6. pixel-driving circuit according to claim 3, which is characterized in that first sectional pressure element is variable resistance,
Second sectional pressure element is fixed resistance.
7. pixel-driving circuit according to claim 1, which is characterized in that the display pixel is OLED pixel.
8. pixel-driving circuit according to claim 2, which is characterized in that when not to display pixel progress electric current benefit
When repaying, the control switch is disconnected, and the pixel compensation circuit is in open-circuit condition.
9. a kind of display screen, which is characterized in that the pixel in the display screen has described in any one of claim 1-8
Pixel-driving circuit.
10. a kind of electronic equipment, which is characterized in that the electronic equipment has display screen as claimed in claim 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910319792.1A CN110010064B (en) | 2019-04-19 | 2019-04-19 | Pixel driving circuit, display screen and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910319792.1A CN110010064B (en) | 2019-04-19 | 2019-04-19 | Pixel driving circuit, display screen and electronic equipment |
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| CN110010064B CN110010064B (en) | 2020-09-22 |
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| CN110751928A (en) * | 2019-11-11 | 2020-02-04 | Oppo广东移动通信有限公司 | Pixel circuit, working method thereof and display device |
| WO2023231130A1 (en) * | 2022-05-31 | 2023-12-07 | Tcl华星光电技术有限公司 | Pixel drive circuit and display panel |
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| Publication number | Publication date |
|---|---|
| CN110010064B (en) | 2020-09-22 |
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