CN114283757B - Driving circuit and display device - Google Patents
Driving circuit and display device Download PDFInfo
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- CN114283757B CN114283757B CN202111643590.6A CN202111643590A CN114283757B CN 114283757 B CN114283757 B CN 114283757B CN 202111643590 A CN202111643590 A CN 202111643590A CN 114283757 B CN114283757 B CN 114283757B
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- 230000001419 dependent effect Effects 0.000 claims abstract description 7
- 230000001808 coupling effect Effects 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 4
- 239000010408 film Substances 0.000 description 19
- 230000000694 effects Effects 0.000 description 7
- 230000008030 elimination Effects 0.000 description 6
- 238000003379 elimination reaction Methods 0.000 description 6
- 238000005192 partition Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000000758 substrate Substances 0.000 description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- IATRAKWUXMZMIY-UHFFFAOYSA-N strontium oxide Chemical compound [O-2].[Sr+2] IATRAKWUXMZMIY-UHFFFAOYSA-N 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 229910001404 rare earth metal oxide Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
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Abstract
The application discloses a driving circuit and a display device, which are applied to the display device, wherein the driving circuit comprises a plurality of data signal wires, pixel electrodes, a charge eliminating circuit, piezoresistors and a control circuit; the voltage dependent resistor comprises a first end and a second end, wherein the first end is connected with at least one data signal wiring, the second end is connected with the charge eliminating circuit, and the voltage dependent resistor is provided with a threshold voltage; the control circuit is used for outputting a voltage signal which is larger than or equal to the threshold voltage to the piezoresistor; when the display device is shut down, the control circuit outputs a voltage signal to the piezoresistor, the resistance value of the piezoresistor is reduced to be less than 10Ω, the data signal wiring is conducted with the charge eliminating circuit, the data signal wiring is connected with the charge eliminating circuit to discharge, the piezoresistor is arranged, the charges existing on the pixel electrode are eliminated when the display device is shut down, and the phenomenon of shutdown ghost of the display panel is avoided.
Description
Technical Field
The present application relates to the field of display panels, and in particular, to a driving circuit and a display device.
Background
In normal operation of the display panel, a certain amount of charges can be accumulated on the pixel electrodes in the display panel, when the display panel is turned off, the grid lines are opened, the pixel electrodes can perform reverse discharge through the data lines, but the reverse discharge speed of the pixel electrodes is slower, and a certain pressure difference exists between the pixel electrodes and the common electrode because the charges of the pixel electrodes cannot be quickly eliminated, so that a deflection phenomenon exists between the pixel electrodes and the common electrode when the liquid crystal molecules are turned off, and further, the phenomenon of shutdown ghost shadow can occur on the display panel, the display effect of the display panel is affected, and the impression of poor watching experience is caused to a user.
Disclosure of Invention
The application aims to provide a driving circuit and a display device, which eliminate charges existing on a pixel electrode during shutdown by arranging a piezoresistor, so as to avoid the phenomenon of shutdown ghost of a display panel.
The application discloses a driving circuit which is applied to a display device, wherein the driving circuit comprises a pixel electrode, a plurality of data signal wires, a charge eliminating circuit, a piezoresistor and a control circuit, the data signal wires are electrically connected with the pixel electrodes, the piezoresistor comprises a first end and a second end, the first end is connected with at least one data signal wire, the second end is connected with the charge eliminating circuit, and the piezoresistor is provided with a threshold voltage; the control circuit is used for outputting a voltage signal which is larger than or equal to the threshold voltage to the piezoresistor; when the display device is turned off, the control circuit outputs a voltage signal to the piezoresistor, the resistance of the piezoresistor is reduced to be smaller than 10Ω, the data signal wiring is conducted with the charge eliminating circuit, and the data signal wiring is connected with the charge eliminating circuit for discharging.
Optionally, the display device includes display panel, printed circuit board and flip chip film, display panel is connected to flip chip film one end, and the other end connect in printed circuit board, be equipped with many source drive on the flip chip film and walk the line, the quantity of source drive walk the line with the quantity of data signal walk line is the same, and one source drive walk line corresponds to be connected one in the display panel data signal walk line, the piezo-resistor is equipped with two, two piezo-resistor is connected to respectively on two source drive walks the line of outermost.
Optionally, the charge eliminating circuit includes a common electrode, and the second end of the piezoresistor is connected to the common electrode through a wire.
Optionally, the charge eliminating circuit includes a ground terminal on the printed circuit board, and the second terminal of the varistor is connected to the ground terminal on the printed circuit board through a wire.
Optionally, the threshold voltage of the piezoresistor is V1, and the voltage of the data signal output to the data line by the flip chip film is V2, wherein V1 is greater than or equal to v2+2, and 15V is greater than V1 and greater than 10V.
Optionally, the data signal trace includes data line, first fan out line and second fan out line, first fan out line is located display panel is close to one side of flip chip film, the second fan out line is located display panel is kept away from the one end of flip chip film, the data line is connected first fan out line and second fan out line, the first end and the second fan out line of piezo-resistor are connected, the second end of piezo-resistor with charge elimination circuit is connected.
Optionally, the number of the piezoresistors is identical to the number of the second fan-out wires, and the first ends of the piezoresistors are connected with the second fan-out wires in a one-to-one correspondence manner.
Optionally, the second fan-out line divides into N partitions, and the piezoresistors are provided with N partitions, where each piezoresistor is respectively connected to one second fan-out line located in the middle of each partition.
Optionally, the data signal trace includes a first fan-out trace, the charge cancellation circuit includes a common line, and the varistor is directly laid between the first fan-out trace and the common line.
The application also discloses a display device, which comprises the driving circuit.
The voltage dependent resistor is used for connecting the data signal wiring and the charge eliminating circuit, so that the pixel electrode connected with the data signal wiring can be connected with the charge eliminating circuit through the data signal wiring and the voltage dependent resistor when the display device is turned off, residual charges on the pixel electrode are eliminated when the display device is turned off, the problem that a voltage difference between the pixel electrode and a common electrode occurs when the display device is turned off, and shutdown ghost occurs in the shutdown process of the display device is solved, and the display effect of the display device is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is evident that the figures in the following description are only some embodiments of the application, from which other figures can be obtained without inventive effort for a person skilled in the art. In the drawings:
fig. 1 is a circuit diagram of a driving circuit of a first embodiment of the present application;
fig. 2 is a schematic diagram of a driving circuit according to a second embodiment of the present application;
fig. 3 is a schematic diagram of a driving circuit according to a third embodiment of the present application;
fig. 4 is a schematic diagram of the structure of a driving circuit of a fourth embodiment of the present application;
fig. 5 is a schematic diagram of the structure of a driving circuit of a fourth embodiment of the present application;
fig. 6 is a schematic structural view of a display device according to a fifth embodiment of the present application.
100, a driving circuit; 200. a piezoresistor; 300. a charge eliminating circuit; 310. a common line; 400. a control circuit; 500. a data signal trace; 510. a first fan-out trace; 520. a second fan-out wiring; 600. a flip chip film; 610. source electrode driving wiring; 700. a printed circuit board; 800. a display panel; 900. a display device.
Detailed Description
It is to be understood that the terminology used herein, the specific structural and functional details disclosed are merely representative for the purpose of describing particular embodiments, but that the application may be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein.
In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or implicitly indicating the number of technical features indicated. Thus, unless otherwise indicated, features defining "first", "second" may include one or more such features either explicitly or implicitly; the meaning of "plurality" is two or more. The terms "comprises," "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that one or more other features, integers, steps, operations, elements, components, and/or groups thereof may be present or added.
In addition, terms of the azimuth or positional relationship indicated by "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., are described based on the azimuth or relative positional relationship shown in the drawings, are merely for convenience of description of the present application, and do not indicate that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present application.
Furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
The present application will be described in detail below with reference to the drawings and the optional embodiments, and it should be noted that, without conflict, new embodiments may be formed by any combination of the embodiments or technical features described below.
As shown in fig. 1, as a first embodiment of the present application, a driving circuit is disclosed, the driving circuit is applied to a display device, the driving circuit includes a pixel electrode, a plurality of data signal traces 500, a charge eliminating circuit 300, a varistor 200 and a control circuit 400, the data signal traces 500 are connected to the pixel electrode, the varistor 200 includes a first end and a second end, the first end is connected to at least one of the data signal traces 500, the second end is connected to the charge eliminating circuit 300, the varistor 200 is provided with a threshold voltage, the control circuit 400 is used for outputting a voltage signal greater than or equal to the threshold voltage to the varistor 200, when the display device is turned off, the control circuit outputs a voltage signal to the varistor 200, the resistance value of the varistor is reduced to less than 10Ω and the data signal traces 500 are conducted with the charge eliminating circuit 300, the data signal traces 500 are connected to the charge eliminating circuit 300 for discharging, in this embodiment, the varistor 200 may be a zinc oxide, a strontium oxide or a rare earth oxide varistor 200 is used for selecting which varistor 200 is used as a practical varistor.
When the display device is turned off, the control circuit 400 detects that the display device is turned off, the control circuit 400 outputs a voltage signal to the piezoresistor 200, the piezoresistor 200 receives the voltage signal output by the control circuit 400, when the voltage signal reaches the threshold voltage of the piezoresistor 200, the resistance of the piezoresistor 200 is reduced to be less than 10Ω, the data signal wiring 500 and the charge eliminating circuit 300 are conducted, and the charges accumulated on the pixel electrode can be output to the charge eliminating circuit 300 through the data signal wiring 500 to eliminate charges, so that the voltage difference between the pixel electrode and the common electrode is eliminated, the problem that the voltage difference between the pixel electrode and the common electrode causes shutdown ghost of the display device in the shutdown process is solved, and the display effect of the display device is improved;
in this embodiment, the control circuit 400 may be integrated to a Power IC (Power integrated circuit), and the Power IC may control the switching on/off of the entire display panel 800, and the control circuit 400 outputs a voltage signal when the Power IC of the display device is powered off to control the resistance of the piezo-resistor 200 to be 0 Ω, and the control circuit 400 is turned off when the Power IC of the display device is powered on, and the voltage signal output by the control circuit 400 is only greater than the threshold voltage of the piezo-resistor 200, and then the piezo-resistor 200 is turned on, and the resistance of the piezo-resistor 200 becomes 0 Ω, and when the voltage signal output by the control circuit 400 is less than the threshold voltage of the piezo-resistor 200, the resistance of the piezo-resistor 200 is infinite, wherein the threshold voltage of the piezo-resistor 200 is V1, the voltage of the data signal output by the flip-chip 600 is V2, and V1 is greater than 10V, i.e. when the voltage of the data signal output by the piezo-resistor 500 is greater than or equal to V2, the maximum voltage of the data signal trace 500 is less than the threshold voltage of the piezo-resistor 200, and the data signal is prevented from being normally being turned on, and the data signal is not normally outputted by the piezo-resistor 200;
in the application, the piezoresistor 200 is adopted to connect the data signal wiring 500 and the charge eliminating circuit 300, so that the pixel electrode connected with the data signal wiring 500 can be connected with the charge eliminating circuit 300 through the data signal wiring 500 and the piezoresistor 200 when in shutdown, residual charges on the pixel electrode are eliminated when in shutdown, the problem that shutdown residual shadows appear due to voltage difference between the pixel electrode and the common electrode in the shutdown process of the display device is solved, and the display effect of the display device is improved.
The charge eliminating circuit 300 includes a common electrode, the second end of the varistor 200 is connected to the common electrode through a wire, specifically, the printed circuit board 700 outputs a common voltage to the common electrode through a common voltage output wire via the flip chip film 600, so that when the varistor 200 is disposed on the flip chip film 600 or the printed circuit board 700, the varistor 200 can be connected to the common electrode through the common voltage output wire, and when a voltage signal output by the control circuit 400 reaches a threshold voltage of the varistor 200 during shutdown, the data signal wire 500 is connected to the common voltage output wire, so that the pixel electrode is communicated with the common electrode, thereby eliminating a voltage difference between the pixel electrode and the common electrode, and improving a shutdown residual image problem caused by a voltage difference between the pixel electrode and the common electrode when the display device is shutdown;
in this embodiment, the charge eliminating circuit 300 may also be a ground terminal on the printed circuit board 700, the second terminal of the piezo-resistor 200 is connected to the ground terminal on the printed circuit board 700 through a wire, when the display device is turned off, the voltage signal output by the control circuit 400 reaches the threshold voltage of the piezo-resistor 200, the resistance value of the piezo-resistor 200 is reduced to less than 10Ω, and the data signal wiring 500 is connected to the ground terminal of the printed circuit board 700, so that the charge accumulated by the pixel electrode can be grounded through the ground terminal on the printed circuit board 700, thereby eliminating the charge of the pixel electrode, improving the problem that the display device generates a shutdown ghost due to the voltage difference between the pixel electrode and the common electrode, and the user can select whether the second terminal of the piezo-resistor 200 is connected to the common electrode or the ground terminal on the printed circuit board 700 to eliminate the charge remained in the pixel electrode according to the actual situation.
As shown in fig. 2, as a further improvement of the first embodiment, the display device includes a display panel 800, a printed circuit board 700 and a flip chip film 600, wherein one end of the flip chip film 600 is connected to the display panel 800, the other end is connected to the printed circuit board 700, a plurality of source driving wires 610 are disposed on the flip chip film 600, the number of the source driving wires 610 is the same as that of the data signal wires 500, one source driving wire 610 is correspondingly connected to one data signal wire 500 in the display panel 800, two piezoresistors 200 are disposed, the first ends of the two piezoresistors 200 are respectively connected to the two source driving wires 610 at the outermost side, and the second ends of the two piezoresistors 200 are connected to a common voltage output wire on the printed circuit board 700 through a wire, or the second ends of the two piezoresistors 200 are connected to a ground terminal on the printed circuit board 700 through a wire;
compared with the case where the piezoresistor 200 is disposed on the display panel 800, the piezoresistor 200 may be disposed on the flip chip film 600 or the printed circuit board 700, which does not affect the light transmittance of the display panel 800 when the display panel 800 is used normally, and does not occupy the space of the display panel 800, thereby being beneficial to the design of a narrow frame of the display device, and the two piezoresistors 200 are disposed on the two wires at the outermost sides of the source driving wire 610 respectively;
because the common display panel 800 needs to perform grounding discharge on the data signal trace 500, when the display panel is turned off, the gates of all Thin Film Transistors (TFTs) are fully turned on to facilitate discharging, so that when the resistance of the piezoresistor 200 is reduced to less than 10Ω, the outermost source driving trace 610 is conducted with the charge eliminating circuit 300, and after the pixel electrode connected with the outermost source driving trace 610 starts to perform charge elimination, the adjacent source driving trace 610 also performs charge release elimination through the outermost source driving trace 610 by potential difference coupling effect, so that other source driving traces 610 after the pushing can perform charge release elimination, only two piezoresistors 200 are required to be arranged on the flip-chip film 600 or the printed circuit board 700, and the display device is also convenient to manufacture, and meanwhile, the piezoresistor 200 does not need to occupy the space of the display panel 800, thereby being beneficial to the design of the narrow frame of the display device;
in this embodiment, a varistor 200 may be disposed in the middle of the source driving wires 610 on the flip-chip film 600, a first end of the varistor 200 is connected to one of the source driving wires 610, and a second end of the varistor 200 is connected to the charge-eliminating circuit 300, when the resistance of the varistor 200 is reduced to 0Ω, both the outermost source driving wire 610 and the middle source driving wire 610 are connected to the charge-eliminating circuit 300, and after the source driving wires 610 begin to eliminate charges, the adjacent source driving wires 610 will eliminate charges through the source driving wires 610 located at the outermost side and the source driving wires 610 located at the middle through the potential difference coupling effect, so that other source driving wires 610 can also eliminate charges, thereby accelerating the charge-eliminating speed of the pixel electrode.
As shown in fig. 3, as a third embodiment of the present application, unlike the second embodiment described above, the data signal trace 500 includes a data line, a first fan-out trace 510 and a second fan-out trace 520, the first fan-out trace 510 is located on a side of the display panel 800 near the flip chip film 600, the second fan-out trace 520 is located on an end of the display panel 800 far from the flip chip film 600, the data line is connected to the first fan-out trace 510 and the second fan-out trace 520, the first end of the piezo-resistor 200 is connected to the second fan-out trace 520, the second end of the piezo-resistor 200 is connected to the charge eliminating circuit, in this embodiment, the second end of the piezo-resistor 200 is connected to the common electrode, and the second end of the piezo-resistor 200 may be connected to the common electrode in a specific manner, in which the second end of the piezo-resistor 200 may be connected to the common electrode on the color film substrate through a gold ball or a conductive BPS; in a second manner, the second end of the varistor 200 is connected to the common line 310 on the array substrate by punching on the array substrate, and then connected to the common electrode connected to the common line 310, and the connection manner between the varistor 200 and the common electrode is designed and connected by a designer according to the actual situation, where in this embodiment, the varistor 200 is disposed in the non-display area of the display panel 800, so as to avoid the influence of the varistor 200 on the light transmittance of the display panel 800 during the normal use of the display device.
In addition, in the third embodiment of the present application, the number of the piezoresistors 200 is consistent with the number of the second fan-out wires 520, and the first ends of the piezoresistors 200 are connected with the second fan-out wires 520 in a one-to-one correspondence manner, so that each pixel electrode can be shorted with the common electrode through the piezoresistor 200 when the display device is turned off, thereby eliminating the voltage difference between the pixel electrode and the common electrode, and the number of the piezoresistors 200 is consistent with the number of the data signal wires 500, and the piezoresistors are arranged in a one-to-one correspondence manner, so that the speed of eliminating the residual charges in the pixel electrode is faster when the display device is turned off, the phenomenon of shutdown ghost does not occur, and the display effect is good;
in this embodiment, the plurality of second fanout wires 520 may be divided into N partitions, the piezo-resistor 200 is provided with N corresponding second fanout wires 520, each of the piezo-resistors 200 is connected to a middle one of the second fanout wires 520 in each partition, after the pixel electrode connected to the middle one of the second fanout wires 520 starts to perform charge elimination, the other second fanout wires 520 adjacent to the middle one of the second fanout wires 520 also perform charge elimination through the middle second fanout wire 520 by a potential difference coupling effect, so that the charge of the whole partition is eliminated, so that the subsequent second fanout wires 520 are also performed with charge release.
Of course, the above method of dividing the second fanout line 520 into N segments to set the number of piezoresistors 200 to discharge the pixel electrodes may also be applied to the source driving line 610.
As shown in fig. 4 and 5, as a fourth embodiment of the present application, a driving circuit is disclosed, the data signal trace 500 includes a first fan-out trace 510, the first fan-out trace 510 is located at a side of the display panel 800 near the flip chip film 600, the charge eliminating circuit 300 includes a common line 310, and the varistor 200 is directly laid between the first fan-out trace 510 and the common line 310, as shown in fig. 5;
when in use, the control circuit 400 outputs a voltage signal to the piezoresistor 200, when the voltage signal reaches the threshold voltage, the resistance of the piezoresistor 200 is reduced to less than 10Ω, and the first fan-out line 510 is communicated with the common line 310, so that the pixel electrode connected with the first fan-out line 510 can discharge through the common line 310, eliminating the charge on the pixel electrode, improving the problem of shutdown ghost caused by the voltage difference between the pixel electrode and the common electrode in the shutdown process of the display device, and improving the display effect of the display device.
As shown in fig. 6, as a fifth embodiment of the present application, a display device 900 including the driving circuit 100 described in the above embodiment is disclosed.
The technical scheme of the application can be widely applied to various display panels, such as TN (Twisted Nematic) display panels, IPS (In-Plane Switching) display panels, VA (Vertical Alignment) display panels, MVA (Multi-Domain Vertical Alignment) display panels, and of course, other types of display panels, such as OLED (Organic Light-Emitting Diode) display panels, can be also applied to the scheme.
It should be noted that, the inventive concept of the present application can form a very large number of embodiments, but the application documents are limited in space and cannot be listed one by one, so that on the premise of no conflict, the above-described embodiments or technical features can be arbitrarily combined to form new embodiments, and after the embodiments or technical features are combined, the original technical effects will be enhanced.
The above description of the application in connection with specific alternative embodiments is further detailed and it is not intended that the application be limited to the specific embodiments disclosed. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the application, and these should be considered to be within the scope of the application.
Claims (5)
1. A driving circuit applied to a display device, the driving circuit comprising:
a pixel electrode;
a plurality of data signal wires electrically connected to the plurality of pixel electrodes;
a charge eliminating circuit;
the piezoresistor comprises a first end and a second end, wherein the first end is connected with at least one data signal wiring, the second end is connected with the charge eliminating circuit, and the piezoresistor is provided with a threshold voltage; and
the control circuit is used for outputting a voltage signal which is larger than or equal to the threshold voltage to the piezoresistor;
when the display device is turned off, the control circuit outputs the voltage signal to the piezoresistor, the resistance value of the piezoresistor is reduced to be smaller than 10Ω, the data signal wiring is conducted with the charge eliminating circuit, and the data signal wiring is connected with the charge eliminating circuit for discharging;
the display device comprises a display panel, a printed circuit board and a flip chip film, wherein one end of the flip chip film is connected with the display panel, the other end of the flip chip film is connected with the printed circuit board, a plurality of source electrode driving wires are arranged on the flip chip film, the number of the source electrode driving wires is the same as that of the data signal wires, and one source electrode driving wire is correspondingly connected with one data signal wire in the display panel;
the voltage dependent resistor is provided with two voltage dependent resistors, and the two voltage dependent resistors are respectively connected to the two source electrode driving wires at the outermost side;
when the pixel electrode connected with the outermost source driving wire starts to discharge through the piezoresistor, the adjacent source driving wires also discharge through the outermost source driving wire through the potential difference coupling effect.
2. The drive circuit of claim 1, wherein the charge cancellation circuit comprises a common electrode, and the second end of the varistor is connected to the common electrode via a wire.
3. The drive circuit of claim 1, wherein the charge cancellation circuit comprises a ground on the printed circuit board, and the second end of the varistor is connected to the ground on the printed circuit board by a wire.
4. The driving circuit according to claim 1, wherein the voltage threshold of the varistor is V1, and the voltage of the data signal output from the flip-chip film to the data signal trace is V2, wherein V1 is greater than or equal to v2+2,15V > V1 > 10V.
5. A display device, characterized in that the display device comprises:
a drive circuit as claimed in any one of claims 1 to 4.
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| CN202111643590.6A CN114283757B (en) | 2021-12-29 | 2021-12-29 | Driving circuit and display device |
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| CN202111643590.6A CN114283757B (en) | 2021-12-29 | 2021-12-29 | Driving circuit and display device |
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