CN108877655A - A kind of pixel circuit, display screen and electronic equipment - Google Patents
A kind of pixel circuit, display screen and electronic equipment Download PDFInfo
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- CN108877655A CN108877655A CN201810719226.5A CN201810719226A CN108877655A CN 108877655 A CN108877655 A CN 108877655A CN 201810719226 A CN201810719226 A CN 201810719226A CN 108877655 A CN108877655 A CN 108877655A
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- transistor
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- switch transistor
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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)
- Electroluminescent Light Sources (AREA)
Abstract
Present invention discloses a kind of pixel circuit, display screen and electronic equipments, pixel circuit includes driving transistor, first switch transistor, second switch transistor, capacitor and feed circuit, one end of first switch transistor connects a data line, the grid that the other end passes through second switch transistor connection driving transistor, the grid of one end connection driving transistor of capacitor, the other end connects a power supply, feed circuit feeds back to the grid voltage for driving transistor at the tie point of first switch transistor and second switch transistor when driving transistor work.The problem of present invention efficiently solves switching transistor and parasitic diode electric leakage under conditions of not changing CMOS technology, and caused brightness and contrast of leaking electricity declines, is suitable for silicon substrate OLED micro-display.
Description
Technical field
The present invention relates to field of display technology, more particularly, to a kind of pixel circuit, display screen and electronic equipment.
Background technique
Pixel circuit is commonly disposed to the scan line Vsel arranged with line direction for providing control signal and with column
In place of the data line Vdata for providing data-signal of direction arrangement intersects, driven by electric current or voltage each
Luminescent device in pixel shines.Referring to figs. 1 and 2, a kind of image element circuit structure comprising switching transistor T1, drive
Dynamic transistor T2, capacitor Cs and luminescent device.Switching transistor T1 and driving transistor T2 can be selected from PMOS, NMOS tube
One of.Switching transistor T1 and driving transistor T2 is PMOS tube in pixel circuit shown in FIG. 1.
For silicon substrate OLED micro-display, Pixel Dimensions are smaller, and each sub-pixel size is about 9um × 3um.When in silicon substrate
When OLED micro-display integrates more metal-oxide-semiconductors and capacitor, capacitor can very little.The work of silicon substrate OLED micro-display is divided into two
Stage：Data write phase and luminescent device light emitting phase.When being in data write phase, scan line Vsel is low level,
Switching transistor T1 is closed at this time, and the voltage on data line Vdata is written in a relatively short period of time by switching transistor T1
In pixel circuit and it is stored on capacitor Cs.When being in luminescent device light emitting phase, scan line Vsel is high level, and switch is brilliant
Body pipe T1 is disconnected, and driving transistor T2 driving luminescent device shines.If refreshing frequency is 60Hz, fluorescent lifetime is usually
16.67ms。
In luminescent device luminescence process, the electric current of luminescent device is flowed through by the Charge controlled being stored on capacitor Cs.It is ideal
In the case of, the charge in luminescence process on capacitor Cs is constant, and light emission luminance can be controlled by Vdata completely.As shown in Figure 1,
When Vdata is 0V, the electric current for flowing through luminescent device reaches maximum Imax.(Vdd is driving transistor T2 connection to Vdata=Vdd
Power supply potential) when, the electric current for flowing through luminescent device reaches minimum Imin.Contrast is (white) when same point is most bright on screen
With it is most dark when (black) brightness ratio, high contrast means relatively high brightness and the gorgeous degree of color is presented.
Since the luminous intensity of luminescent device is directly proportional to the electric current for flowing through it, Imax/Imin is higher, and to represent contrast higher.
However, capacitor Cs is limited storage by Pixel Dimensions since the Pixel Dimensions of silicon substrate OLED micro-display are smaller
Charge is seldom.Although switching transistor T1 is in an off state in light emitting phase, it leaks electricity and the leakage of parasitic diode
Electricity will lead to the charge being stored on capacitor Cs and change in pA (pico-ampere) magnitude, electric leakage, lead to the Imax in light emitting phase
It cannot keep constant, electric current slowly reduces or Imin cannot be kept constant, and electric current slowly becomes larger, and finally makes maximum brightness
It reduces and contrast reduces, influence display effect.
Summary of the invention
It is an object of the invention to overcome the deficiencies of existing technologies, one kind is provided and is able to solve switching transistor and parasitism two
The problem of pole pipe is leaked electricity improves the pixel circuit of display brightness and contrast, also provides a kind of display of application pixel circuit
Screen and electronic equipment.
To achieve the above object, the following technical solutions are proposed by the present invention：A kind of pixel circuit, including
Transistor is driven, the driving transistor connects the first power supply；
The first switch transistor and second switch transistor being connected in series, the first switch transistor connect a data
Line, the second switch transistor connect the driving transistor；
Capacitor, the capacitance connection is in the intermediate node and second of the driving transistor and the second switch transistor
Between power supply；And
Feed circuit, the feed circuit are connected in the first switch transistor and the second switch transistor
Between intermediate node and the driving transistor, in the driving transistor work that the grid of the driving transistor is electric
Pressure is fed back at the intermediate node of the first switch transistor and the second switch transistor.
Preferably, the feed circuit includes buffer and third switching transistor, and the one of the third switching transistor
End is connected between first switch transistor and second switch transistor, and the other end passes through the buffer and the driving crystal
The grid of pipe is connected.
Preferably, the gate terminal of the first switch transistor, second switch transistor and third switching transistor with
Scan line electrical connection.
Preferably, the third switching transistor is NMOS tube.
Preferably, the first switch transistor and second switch transistor are NMOS tube, and first switch transistor
Substrate is electrically connected with ground terminal, and the substrate of second switch transistor is electrically connected with its source electrode.
Preferably, the first switch transistor and second switch transistor are PMOS tube, and first switch transistor
Substrate and the first power electric connection, the substrate of second switch transistor are electrically connected with its source electrode.
Preferably, the driving transistor is selected from one of NMOS tube, PMOS tube.
Preferably, when driving transistor is Native NMOS tube, buffer multiplexing driving transistor, described the
One end of three switching transistors is connected between first switch transistor and second switch transistor, and the other end and the driving are brilliant
The source electrode of body pipe is connected.
Preferably, the pixel circuit further includes the luminescent device being electrically connected with driving transistor, the driving transistor
Luminescent device can be driven to shine.
A kind of display screen includes above-mentioned pixel circuit.
A kind of electronic equipment, including above-mentioned display screen.
The beneficial effects of the invention are as follows：
Compared with prior art, pixel circuit of the present invention passes through setting under conditions of not changing CMOS technology
Feed circuit solves the problems, such as switching transistor and parasitic diode electric leakage, improves display brightness and contrast, especially
It is suitable for silicon substrate OLED micro-displays, its display effect can be improved.
Detailed description of the invention
Fig. 1 is this pixel circuit schematic diagram in the prior art；
Fig. 2 is curent change schematic diagram in Fig. 1；
Fig. 3 is structure of the invention block diagram representation；
Fig. 4 is one circuit diagram schematic diagram of the embodiment of the present invention；
Fig. 5 is two circuit diagram schematic diagram of the embodiment of the present invention.
Specific embodiment
Below in conjunction with attached drawing of the invention, clear, complete description is carried out to the technical solution of the embodiment of the present invention.
A kind of disclosed pixel circuit is applied in silicon substrate OLED micro-display, can not change CMOS
Under conditions of (Complementary Metal Oxide Semiconductor, complementary metal oxide semiconductor) technique, solution
The problem of certainly switching transistor and parasitic diode leak electricity, and the problem of the decline of brightness and contrast caused by electric leakage.
As shown in figure 3, a kind of pixel circuit, including driving transistor T2, first switch transistor T10, second switch are brilliant
Body pipe T11, capacitor Cs and feed circuit.Wherein, first switch transistor T10 and second switch transistor T11 is connected in series,
And first switch transistor T10 is electrically connected with a data line Vdata；Second switch transistor T11's and driving transistor T2
Grid electrical connection, driving transistor T2 are also electrically connected with the first power supply Vavdd；Capacitor Cs is connected to driving transistor T2 and second
Between the intermediate node and second source Va of switching transistor T11；Feed circuit, input terminal are connected to second switch transistor
The intermediate node of T11 and driving transistor T2, output end are connected to first switch transistor T10 and second switch transistor T11
Intermediate node, for drive transistor T2 work when will drive transistor T2 grid voltage feed back to first switch crystal
At the intermediate node of pipe T10 and second switch transistor T11.
The pixel circuit further includes luminescent device L0, is electrically connected with driving transistor T2, and driving transistor T2 can drive
It shines.
Specifically, driving transistor T2 has first electrode end 201, second electrode end 202 and gate terminal 203, the first electricity
Extreme 201 are electrically connected with the first power supply Vavdd, and second electrode end 202 is electrically connected with the anode of luminescent device L0, luminescent device L0
Cathode be electrically connected with ground terminal.
First switch transistor T10 has first electrode end 101, second electrode end 102 and gate terminal, second switch crystal
Pipe T11 has first electrode end 111, second electrode end 112 and gate terminal.Wherein, the first electrode of first switch transistor T10
End 101 is electrically connected with data line Vdata, and the second electrode end 102 of first switch transistor T10 passes through second switch transistor
T11 is electrically connected with the gate terminal 203 of driving transistor T2, i.e., the second electrode end 102 of first switch transistor T10 is opened with second
The first electrode end 111 for closing transistor T11 is electrically connected, the second electrode end 112 of second switch transistor T11 and driving transistor
The gate terminal 203 of T2 is electrically connected.
In data write phase, by control first switch transistor T10 and second switch transistor T11 conducting or
Shutdown, data-signal is delivered in the pixel circuit.When it is implemented, first switch transistor T10 and second switch crystal
The gate terminal of pipe T11 is electrically connected with scan line Vsel, is controlled first switch transistor T10 and second by scan line Vsel and is opened
Close the on or off of transistor T11.
One end of capacitor Cs is electrically connected with second source Va, and the other end is electrically connected with the gate terminal 203 of driving transistor T2.
When it is implemented, second source Va is a fixed level, it can be 0V either other a certain voltage values, it can also be with the first power supply
Vavdd is identical, and the selection of second source Va can be selected according to the type of driving transistor T2.
Feed circuit is used to drive when luminescent device L0 is in light emitting phase (i.e. charge is kept for the stage on capacitor Cs)
The grid voltage of transistor T2 feeds back to the first electrode end 111 of second switch transistor T11.Specifically, feed circuit includes
Third switching transistor T3 and buffer, third switching transistor T3 equally have first electrode end 301, second electrode end 302
And gate terminal, the input terminal of buffer are electrically connected with the gate terminal 203 of driving transistor T2, output end and third switching transistor
The second electrode end 302 of T3 is electrically connected, the first electrode end 301 and second switch transistor T11's of third switching transistor T3
First electrode end 111 is electrically connected.When it is implemented, the preferred NMOS tube of third switching transistor T3, as third switching transistor T3
When for NMOS tube, the second electrode end 302 of third switching transistor T3 is drain D, the first electrode of third switching transistor T3
End 301 is source S, and gate terminal is electrically connected with scan line Vsel.Certainly, switching transistor can also select PMOS tube, can pass through
The on or off of individually control signal control PMOS tube is set.
In the present embodiment, first switch transistor T10, second switch transistor T11 can be PMOS tube or NMOS tube.When
When first switch transistor T10, second switch transistor T11 are PMOS tube, the first electrode end of first switch transistor T10
101 be source S, and the second electrode end 102 of first switch transistor T10 is drain D, and first switch crystal when being embodied
The substrate of pipe T10 is also electrically connected with the first power supply Vavdd；The first electrode end 111 of second switch transistor T11 is source S, the
The second electrode end 112 of two switching transistor T11 is drain D, and when being embodied the substrate of second switch transistor T11 with
Its source S electrical connection.
When first switch transistor T10 and second switch transistor T11 are NMOS tube, first switch transistor T10
First electrode end 101 be drain D, the second electrode end 102 of first switch transistor T10 is source S, and when being embodied
The substrate of first switch transistor T10 is also electrically connected with ground terminal；The first electrode end 111 of second switch transistor T11 is leakage
The second electrode end 102 of pole D, second switch transistor T11 are source S, and second switch transistor T11 when being embodied
Substrate is electrically connected with its source S.
Likewise, driving transistor T2 can be selected from one of PMOS tube, NMOS tube.When driving transistor T2 selection exhausts
Transistor npn npn (Native NMOS), the second electrode end 302 of third switching transistor T3 and the second electrode of driving transistor T2
202 (source Ss) electrical connection is held, i.e. buffer and driving transistor T2 shares Native NMOS tube, and driving transistor T2 serves as slow
Rush device.
In the present embodiment, using first switch transistor T10, second switch transistor T11 as PMOS tube, driving transistor T2
For Native NMOS tube, pixel circuit is described in detail.
As shown in figure 3, a kind of pixel circuit, including driving transistor T2, first switch transistor T10, second switch are brilliant
Body pipe T11, capacitor Cs, feed circuit and luminescent device L0.Drive the first electrode end 201 (drain D) of transistor T2 and the
One power supply Vavdd electrical connection, second electrode end 202 (source S) is electrically connected with the anode of luminescent device L0, the yin of luminescent device L0
Pole is electrically connected with ground terminal.The first electrode end 101 (source S) of first switch transistor T10 is electrically connected with data line Vdata,
Second electrode end 102 (drain D) is electrically connected with the first electrode end 111 (source S) of second switch transistor T11, and first
The substrate of switching transistor T10 and the first power electric connection.The second electrode end 112 (drain D) of second switch transistor T11 with
The gate terminal 203 of transistor T2 is driven to be electrically connected, and the substrate of second switch transistor T11 is electrically connected with source S.Capacitor Cs
One end be electrically connected with second source Va, the other end with driving transistor T2 grid G be electrically connected.
As shown in figure 4, since driving transistor T2 is Native NMOS tube, threshold voltage vt h is close in the pixel circuit
Like being 0, driving transistor T2 plays the role of buffer, and therefore, the buffer in feed circuit is served as by driving transistor T2.
When it is implemented, the second electrode end (drain D) of third switching transistor T3 is electrically connected with the source electrode of driving transistor T2.
Meanwhile the gate terminal G of first switch transistor T10, second switch transistor T11 and third switching transistor T3
It is electrically connected with scan line Vsel.
Specifically, scan line Vsel is low level, at this time first switch transistor T10 and second when data write phase
Switching transistor T11 is both turned on, the third switching transistor T3 shutdown in feed circuit, and the voltage on data line Vdata passes through
First switch transistor T10 and second switch transistor T11 are written in pixel circuit, i.e., the voltage on data line passes through first
Switching transistor T10 and second switch transistor T11 charges to capacitor Cs, the leakage of the voltage control driving transistor T2 of capacitor Cs
Electrode current；When luminescent device L0 shines, scan line Vsel is high level, first switch transistor T10 and second switch transistor
T11 is turned off, at this point, the charge of capacitor Cs can continue to the grid voltage of driving transistor T2.Third in feed circuit
Switching transistor T3 is connected when scan line Vsel is high level, since the threshold voltage vt h of driving transistor T2 is approximately 0,
Driving transistor T2 serves as buffer, and grid voltage is fed back to second switch transistor by third switching transistor T3
The source S of T11, so that the electric leakage of second switch transistor T11 disappears, while the voltage at the PN junction both ends of parasitic diode
It is similarly 0, electric leakage disappears.
Further, it is by PMOS tube, driving transistor T2 of first switch transistor T10, second switch transistor T11
For PMOS tube, pixel circuit is described in detail.
As shown in figure 3, a kind of pixel circuit includes driving transistor T2, first switch transistor T10, second switch crystal
Pipe T11, capacitor Cs, feed circuit and luminescent device L0.Drive the first electrode end 201 (source S) and first of transistor T2
Power electric connection, second electrode end 202 (drain D) are electrically connected with the anode of luminescent device L0, the cathode of luminescent device L0 with connect
Ground terminal electrical connection.The first electrode end 101 (source S) of first switch transistor T10 is electrically connected with data line Vdata, the second electricity
Extreme 102 (drain Ds) are electrically connected with the first electrode end 111 (source S) of second switch transistor T11, and first switch is brilliant
The substrate and the first power electric connection of body pipe T10.The second electrode end 112 (drain D) of second switch transistor T11 and driving are brilliant
The gate terminal 203 of body pipe T2 is electrically connected, and the substrate of second switch transistor T11 and its first electrode end (source S) electricity
Connection.One end of capacitor Cs is electrically connected with second source, and the other end is electrically connected with the gate terminal 203 of driving transistor T2.
As shown in figure 5, the input terminal of buffer is electrically connected with the gate terminal 203 of driving transistor T2, defeated in feed circuit
Outlet is electrically connected with the second electrode end 302 (drain D) of third switching transistor T3, the first electrode of third switching transistor T3
301 (source Ss) of end are electrically connected with the first electrode end (source S) of second switch transistor T11.
Meanwhile the gate terminal G of first switch transistor T10, second switch transistor T11 and third switching transistor T3
It is electrically connected with scan line Vsel.
Specifically, when data write phase, scan line Vsel is low level, at this time first switch transistor T10 and second
Switching transistor T11 is both turned on, the third switching transistor T3 shutdown in feed circuit, and the voltage on data line Vdata passes through
First switch transistor T10 and second switch transistor T11 are written in pixel circuit, i.e., the voltage on data line passes through first
Switching transistor T10 and second switch transistor T11 charges to capacitor Cs, the controllable driving transistor T2's of the voltage of capacitor Cs
Drain current；When luminescent device L0 shines, scan line Vsel is high level, first switch transistor T10 and second switch crystal
Pipe T11 is turned off, and the charge on capacitor Cs can continue to the grid voltage of driving transistor T2 at this time.In feed circuit
Three switching transistor T3 are connected when scan line Vsel is high level, and buffer will drive the grid voltage Vgate of transistor T2
The source S of second switch transistor T11 is fed back to by third switching transistor T3, so that Vds on second switch transistor T11
Be 0 so that the electric leakage of second switch transistor T11 disappears, while on second switch transistor T11 parasitic diode PN
The voltage at knot both ends is similarly 0, and electric leakage disappears.
Present invention further teaches a kind of display screens and electronic equipment using above-mentioned pixel circuit.Display screen is mainly silicon substrate
OLED display screen, electronic equipment can be the VR helmet, AR glasses etc..
Technology contents and technical characteristic of the invention have revealed that as above, however those skilled in the art still may base
Make various replacements and modification without departing substantially from spirit of that invention, therefore, the scope of the present invention in teachings of the present invention and announcement
It should be not limited to the revealed content of embodiment, and should include various without departing substantially from replacement and modification of the invention, and be this patent Shen
Please claim covered.
Claims (11)
1. a kind of pixel circuit, which is characterized in that including：
Transistor is driven, the driving transistor connects the first power supply；
The first switch transistor and second switch transistor being connected in series, the first switch transistor connect a data line,
The second switch transistor connects the driving transistor；
Capacitor, the capacitance connection is in the intermediate node and second source of the driving transistor and the second switch transistor
Between；And
Feed circuit, the feed circuit are connected to the middle node of the first switch transistor Yu the second switch transistor
Between point and the driving transistor, in the driving transistor work that the grid voltage of the driving transistor is anti-
It is fed at the intermediate node of the first switch transistor and the second switch transistor.
2. pixel circuit according to claim 1, which is characterized in that the feed circuit includes buffer and third switch
One end of transistor, the third switching transistor is connected between first switch transistor and second switch transistor, another
End is connected by the buffer with the grid of the driving transistor.
3. pixel circuit according to claim 2, which is characterized in that the first switch transistor, second switch crystal
The gate terminal of pipe and third switching transistor is electrically connected with scan line.
4. pixel circuit according to claim 2 or 3, which is characterized in that the third switching transistor is NMOS tube.
5. pixel circuit according to claim 1, which is characterized in that the first switch transistor and second switch crystal
Pipe is NMOS tube, and the substrate of first switch transistor is electrically connected with ground terminal, the source of the substrate of second switch transistor and it
Pole electrical connection.
6. pixel circuit according to claim 1, which is characterized in that the first switch transistor and second switch crystal
Pipe is PMOS tube, and the substrate of first switch transistor and the first power electric connection, the substrate of second switch transistor with it
Source electrode electrical connection.
7. pixel circuit according to claim 1, which is characterized in that the driving transistor is selected from NMOS tube, PMOS tube
One of.
8. pixel circuit according to claim 2, which is characterized in that when driving transistor is Native NMOS tube, institute
Buffer multiplexing driving transistor is stated, one end of the third switching transistor is connected to first switch transistor and second switch
Between transistor, the other end is connected with the source electrode of the driving transistor.
9. pixel circuit according to claim 1, which is characterized in that the pixel circuit further includes electric with driving transistor
The luminescent device of connection, the driving transistor can drive luminescent device to shine.
10. a kind of display screen, which is characterized in that include pixel circuit described in any one of claim 1 to 9.
11. a kind of electronic equipment, which is characterized in that including display screen described in any one of claim 10.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810719226.5A CN108877655A (en) | 2018-07-03 | 2018-07-03 | A kind of pixel circuit, display screen and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810719226.5A CN108877655A (en) | 2018-07-03 | 2018-07-03 | A kind of pixel circuit, display screen and electronic equipment |
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| CN109767744A (en) * | 2019-03-21 | 2019-05-17 | 深圳吉迪思电子科技有限公司 | A kind of pixel circuit and its driving method, display device and electronic equipment |
| CN111261111A (en) * | 2020-03-13 | 2020-06-09 | 深圳市华星光电半导体显示技术有限公司 | Pixel driving circuit, driving method thereof and display panel |
| US11107401B1 (en) | 2020-03-13 | 2021-08-31 | Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Pixel driving circuit, driving method thereof, and display panel |
| WO2024066716A1 (en) * | 2022-09-28 | 2024-04-04 | 京东方科技集团股份有限公司 | Display substrate, display module, and display apparatus |
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| US11107401B1 (en) | 2020-03-13 | 2021-08-31 | Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Pixel driving circuit, driving method thereof, and display panel |
| WO2021179406A1 (en) * | 2020-03-13 | 2021-09-16 | 深圳市华星光电半导体显示技术有限公司 | Pixel driving circuit and driving method therefor, and display panel |
| WO2024066716A1 (en) * | 2022-09-28 | 2024-04-04 | 京东方科技集团股份有限公司 | Display substrate, display module, and display apparatus |
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Application publication date: 20181123 |