CN113450732A - Pixel circuit, driving method thereof, display device and electronic equipment - Google Patents
Pixel circuit, driving method thereof, display device and electronic equipment Download PDFInfo
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- CN113450732A CN113450732A CN202010220495.4A CN202010220495A CN113450732A CN 113450732 A CN113450732 A CN 113450732A CN 202010220495 A CN202010220495 A CN 202010220495A CN 113450732 A CN113450732 A CN 113450732A
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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
- G09G3/34—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 by control of light from an independent source
- G09G3/36—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 by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3648—Control of matrices with row and column drivers using an active matrix
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
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- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The embodiment of the application provides a pixel circuit and a driving method thereof, a display device and electronic equipment, wherein the pixel circuit comprises a pixel unit and a gate driving unit, the gate driving unit is electrically connected with the pixel unit, and the gate driving unit is used for inputting a first charging voltage to the pixel unit in a first time period of each display period and inputting a second charging voltage to the pixel unit in a second time period of each display period so as to charge the pixel unit; wherein the first charging voltage is greater than the second charging voltage. The first charging voltage is greater than the second charging voltage, so that the pixel voltage of the pixel unit in the first time period can be increased, the charging speed of the pixel unit can be increased, and the display effect of the display device can be improved.
Description
Technical Field
The present disclosure relates to the field of display technologies, and in particular, to a pixel circuit, a driving method thereof, a display device, and an electronic apparatus.
Background
The pixel driving circuit is a circuit structure for writing a data voltage to a pixel electrode in a pixel cell in a Liquid Crystal Display (LCD).
With the improvement of the resolution of the display device, the refresh frequency of the pixel unit is higher and higher, so that the time for the pixel circuit to charge the pixel electrode is shorter and shorter, and the phenomenon of uneven brightness of the display device due to insufficient charging of the pixel electrode is easily caused.
Disclosure of Invention
The embodiment of the application provides a pixel circuit, a driving method thereof, a display device and an electronic device, which can improve the charging speed of a pixel unit, thereby improving the display effect of the display device.
In a first aspect, an embodiment of the present application provides a pixel circuit, including:
a pixel unit; and
the gate driving unit is electrically connected with the pixel unit and is used for inputting a first charging voltage to the pixel unit in a first time period of each display period and inputting a second charging voltage to the pixel unit in a second time period of each display period so as to charge the pixel unit;
wherein the first charging voltage is greater than the second charging voltage.
In a second aspect, an embodiment of the present application further provides a display device, where the display device includes a pixel circuit, and the pixel circuit is the pixel circuit described above.
In a third aspect, an embodiment of the present application further provides an electronic device, which includes a display device, where the display device is the above display device.
In a fourth aspect, an embodiment of the present application further provides a driving method of a pixel circuit, where the pixel circuit includes a pixel unit and a gate driving unit, and the gate driving unit is electrically connected to the pixel unit; the method comprises the following steps:
when the pixel circuit works, the grid driving unit inputs a first charging voltage in a first time period of each display period;
the grid driving unit inputs a second charging voltage in a second time period of each display period;
wherein the first charging voltage is greater than the second charging voltage.
The pixel circuit of the embodiment of the application, the gate driving unit in the first time quantum of display cycle to the first charging voltage of pixel unit input, and in the second time quantum of display cycle to the second charging voltage is inputed to the pixel unit, because first charging voltage is greater than the second charging voltage, can improve the pixel voltage of pixel unit in first time quantum to can improve the charging speed to pixel unit, and then can improve display device's display effect.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present application.
Fig. 2 is a schematic diagram of a first structure of a pixel circuit according to an embodiment of the present disclosure.
Fig. 3 is a schematic diagram of a second structure of a pixel circuit according to an embodiment of the present disclosure.
Fig. 4 is a first charging waveform diagram of a pixel circuit on a time axis according to an embodiment of the present disclosure.
Fig. 5 is a second charging waveform diagram of a pixel circuit according to an embodiment of the present disclosure on a time axis.
Fig. 6 is a third charging waveform diagram of a pixel circuit provided in the embodiment of the present application on a time axis.
Fig. 7 is a flowchart illustrating a pixel circuit driving method according to an embodiment of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The electronic device may be, but is not limited to, a computer, a mobile phone, a tablet, a smart watch, a smart bracelet, a monitor, and the like, and includes a display device for displaying a picture.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present disclosure, the display device 100 may be, but is not limited to, an electronic device with a liquid crystal display, such as a computer, a mobile phone, a tablet, a smart watch, a smart bracelet, and a monitor, and the display device 100 according to the embodiment of the present disclosure is described in detail by taking a mobile phone as an example.
The display device 100 includes a display panel 10 and a pixel circuit 20, wherein the pixel circuit 20 is electrically connected to the display panel 10, and the pixel circuit 20 is used for charging the display panel 10 to realize that the display panel 10 displays a picture.
Referring to fig. 2, fig. 2 is a first structural schematic diagram of a pixel circuit according to an embodiment of the present disclosure, in which the pixel circuit 20 includes a pixel unit 21 and a gate driving unit 22, the gate driving unit 22 is electrically connected to the pixel unit 22, and the gate driving unit 22 is used for charging the pixel unit 22.
The number of the pixel units 21 may be multiple, and the multiple pixel units 21 are arranged in an array.
It is understood that the pixel circuit 20 further includes a Scan Line (SL) which is a trace of a voltage signal for turning on and off the thin film transistor, and a Data Line (DL) which is a pulse signal in general. The data lines are used for providing data routing for Liquid Crystal Display (LCD) pixels or Organic Light-Emitting Diode (OLED) pixels.
The gate driving unit 22 is electrically connected to the pixel units 22 through a scan line, for example, one scan line may electrically connect a plurality of pixel units 22, that is, the gate driving unit 22 may electrically connect a plurality of pixel units 22 through one scan line, which may save the number of scan lines.
The number of the scanning lines may be N, where N is a positive integer greater than or equal to 2, the N scanning lines are parallel to each other, and the N scanning lines extend from one end to the other end opposite to the one end.
It is understood that N of the scan lines may also extend in the Y-axis direction.
The number of data lines may be N, where N is a positive integer greater than or equal to 2, N data lines are parallel to each other, and N data lines are perpendicular to N scan lines, for example, when N scan lines extend in the X-axis direction, N data lines may extend in the Y-axis direction, and when N scan lines extend in the Y-axis direction, N data lines may extend in the X-axis direction.
It is understood that the number of data lines may be equal to the number of scan lines, for example, when the number of scan lines is 20, the number of data lines is also 20.
The gate driving unit 22 may adopt a gate driving chip, and the gate driving chip is used for driving the switching power supply to be turned on and off. For example, before the switching power supply is turned on, the capacitor needs to be charged, when the capacitor voltage is greater than the threshold voltage, the switching power supply starts to be turned on, and the display effect of the display device is better as the speed of the capacitor voltage reaching the threshold voltage is higher. Therefore, the conventional common high level charges the capacitor, which has a slow charging speed, and is prone to cause the phenomenon of uneven brightness of the display device due to insufficient charging of the pixel electrode.
In order to solve the above problem, the present application inputs a first charging voltage to the pixel unit 21 in a first period of each display period through the gate driving unit 22, and inputs a second charging voltage to the pixel unit 22 in a second period of each display period to charge the pixel unit 21, wherein the first charging voltage is greater than the second charging voltage. Because the first charging voltage is greater than the second charging voltage, the Pixel Voltage (VP) of the Pixel unit 21 in the first time period can be increased, so that the Pixel voltage can quickly reach the voltage threshold, the charging speed of the Pixel unit 21 can be increased, the phenomenon that the display device 100 has uneven brightness due to insufficient charging of the Pixel unit 21 easily caused by the slow charging speed is avoided, and the display effect of the display device 100 can be further improved.
It is understood that the second charging voltage may also be greater than the first charging voltage, and the pixel voltage of the pixel unit 21 in the second time period may be increased, so that the charging speed of the pixel unit 21 may be increased, and the display effect of the display device 100 may be improved. The embodiment of the application does not limit the magnitude of the first charging voltage and the second charging voltage, as long as the first charging voltage and the second charging voltage are different.
Among them, the process of the display apparatus 100 displaying a picture may include a plurality of display periods, and the display periods may include a first period (T1), a second period (T2), and a third period (T3), and the display periods are on times of the scan lines, which are times required for the switching power supply to be turned on, that is, times required for the pixel voltage to reach the threshold voltage.
It is understood that the gate driving unit 22 is further configured to stop charging the pixel unit in the third time period of each display period.
It should be noted that the terms "first", "second" and "third" in the description of the present application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", "third" may explicitly or implicitly include one or more of the described features.
Referring to fig. 3, fig. 3 is a second structural diagram of a pixel circuit according to an embodiment of the present disclosure. The gate driving unit 22 includes a timing controller 221 and a gate driving sub-unit 222, the gate driving sub-unit 222 is electrically connected to the timing controller 221 and the pixel unit 21, respectively, the timing controller 221 is configured to generate a first clock signal in a first period of each display period and a second clock signal in a second period of each display period, and the gate driving sub-unit 222 is configured to input the first charging voltage to the pixel unit 21 according to the first clock signal and input the second charging voltage to the pixel unit 21 according to the second clock signal.
The timing controller 221 is configured to generate Clock signals (Clock, CK), which form a rectangular wave on a time axis. The gate driving sub-unit 222 generates a first charging voltage when receiving the first clock signal in the first period of each display period and generates a second charging voltage when receiving the second clock signal in the second period of each display period, and the gate driving sub-unit 222 inputs the first charging voltage to the pixel unit 21 in the first period and inputs the second charging voltage to the pixel unit 21 in the second period to charge the pixel unit 21. The clock controller 221 of the embodiment of the present application may generate two clock signals, i.e., a first clock signal including a first high level and a second clock signal including a second high level, wherein the first high level is greater than the second high level. It is understood that the second high level may be greater than the first high level.
It is understood that the clock controller 221 may also generate three clock signals, namely, a first clock signal, a second clock signal and a third clock signal, the clock controller 221 generates the first clock signal in the first time period of each display period, generates the second clock signal in the second time period of each display period, and generates the third clock signal in the third time period of each display period, wherein the first clock signal includes a first high level, the second clock signal includes a second high level, and the third clock signal includes a low level, and the gate driving unit 22 is configured to stop charging the pixel unit 21 according to the third clock signal. For example, when the gate driving unit 22 receives the third clock signal for the third period, the first charging voltage and the second charging voltage are not generated, and the charging of the pixel unit 21 is stopped.
It should be noted that the clock controller 221 may be a part of the gate driving unit 22, and the clock controller 221 may also be an independent component, for example, the clock controller 221 may be electrically connected to the gate driving unit 22.
The Gate driving sub-unit 222 may be a Gate Driver on Array (GOA) unit, and each GOA unit is configured to input the first charging voltage and the second charging voltage to the pixel unit 21 connected thereto.
It is understood that the number of the clock controller 221 and the gate driving subunit 222 can be N, where N is a positive integer greater than or equal to 2. Each of the clock controllers 221 is electrically connected to one of the gate driving subunits 222.
The N GOA units are arranged along the Y-axis direction, and are electrically connected from top to bottom, for example, the top GOA unit is a first GOA unit, the second GOA unit is located below the first GOA unit and electrically connected to the first GOA unit, the third GOA unit is located below the second GOA unit and electrically connected to the second GOA unit, and the nth GOA unit is located at the bottom and electrically connected to the N-1 th GOA unit.
Each GOA unit is electrically connected to one pixel unit 21, so as to input the first charging voltage and the second charging voltage output by the GOA unit to the corresponding pixel unit 21, for example: the first GOA unit is electrically connected with the first pixel unit, the first GOA unit inputs the output first charging voltage and the output second charging voltage to the first pixel unit, the second GOA unit is electrically connected with the second pixel unit, the second GOA unit inputs the output first charging voltage and the output second charging voltage to the corresponding second pixel unit, the Nth GOA unit is electrically connected with the Nth pixel unit, and the Nth GOA unit inputs the output first charging voltage and the output second charging voltage to the corresponding Nth pixel unit.
It should be noted that, in the embodiment of the present application, the first charging voltage and the second charging voltage output by all the GOA units are the same, for example, the first charging voltage output by the first GOA unit is 12V, the second charging voltage is 8V, the first charging voltage output by the second GOA unit is 12V, and the second charging voltage is 8V, which has the advantage that the charging voltage of each pixel unit is the same, and the pixel units can be charged at the same speed, so that the display device can uniformly display the picture.
Referring to fig. 4, fig. 4 is a first charging waveform diagram of a pixel circuit according to an embodiment of the present disclosure on a time axis. The first charging voltage is greater than the second charging voltage, for example, the ratio of the first charging voltage to the second charging voltage may be 2:1, which not only increases the charging speed of the pixel unit 21, but also does not increase the load of the pixel circuit 20, thereby improving the display effect of the display device 100.
It is understood that the ratio of the first charging voltage to the second charging voltage may also be 3:2, and the embodiment of the present application does not limit the ratio of the first charging voltage to the second charging voltage, and as long as the charging speed of the pixel circuit 20 to the pixel unit 21 can be increased, the scope of the present application is protected.
The gate driving unit 22 may input the first charging voltage to the pixel unit 21 in the first period of each display period, and input the second charging voltage to the pixel unit 21 in the second period of each display period, and it is understood that the gate driving unit 20 may also input the second charging voltage to the pixel unit 21 in the first period of each display period, and input the first charging voltage to the pixel unit 21 in the second period of each display period.
Referring to fig. 5, fig. 5 is a second charging waveform diagram of the pixel circuit according to the embodiment of the present disclosure on a time axis. In the first time period, the first charging voltage is gradually increased, so that the charging speed of the pixel circuit to the pixel unit 21 can be better increased, and the display effect of the display device 100 can be better improved.
Wherein the first charging voltage is increased stepwise, for example, the pixel is charged with the voltage of 10V for one third of the first period, the pixel is charged with the voltage of 12V for two thirds of the first period, and the pixel is charged with the voltage of 15V for the last one third of the first period.
The first charging voltage is gradually increased, and it can be understood that the first charging voltage may be gradually increased in a step manner, the first charging voltage may also be linearly increased in a step manner, and the first charging voltage may also be gradually increased in a curve manner, where the first charging voltage is gradually increased in a curve manner, so that the display panel can more uniformly display the image. The increasing curve may be J-shaped or S-shaped.
The voltage required for the data line to transmit data to the pixel unit 21 may be the second charging voltage, or may be a voltage value lower than the second charging voltage.
Moreover, since the first charging voltage for charging the pixel unit in the first time period is greater than the second charging voltage for the second time period, the pixel voltage can quickly reach the preset voltage value in the first time period, so that the pixel unit 21 can be driven at a higher refresh rate, which is beneficial to improving the display effect of the display device 100.
Referring to fig. 6, fig. 6 is a third charging waveform diagram of a pixel circuit according to an embodiment of the present disclosure on a time axis. Each display cycle includes a first time period, a second time period and a third time period, the charging speed of the first time period is greater than that of the second time period, wherein the duration of the first time period is greater than or equal to that of the second time period, so that the charging speed of the pixel circuit to the pixel unit 21 can be further increased, and further, the display effect of the display device 100 can be improved.
Wherein, the ratio of the duration of the first time period to the duration of the second time period may be 3:2, the charging speed of the pixel circuit to the pixel unit can be further increased, and the display effect of the display device 100 can be further improved.
It is understood that the ratio of the duration of the first time period to the duration of the second time period may also be 5: 4, the charging speed of the pixel circuit to the pixel unit 21 can be increased without increasing the load of the pixel circuit. The ratio of the duration of the first time period to the duration of the second time period in the embodiment of the present application is not limited to the above example, and other cases that the charging speed of the pixel circuit 20 to the pixel unit 21 can be increased without increasing the load of the pixel circuit all belong to the protection scope of the embodiment of the present application.
It can be understood that when the first charging voltage is greater than the second charging voltage, the duration of the first time period may also be less than the duration of the second time period, and the charging speed of the pixel circuit to the pixel unit may be increased without increasing the load of the pixel circuit. For example, when the ratio of the first charging voltage to the second charging voltage is 2:1, the ratio of the duration of the first period to the duration of the second period is 2: 3.
In the embodiment of the present application, the ratio between the first charging voltage and the second charging voltage, and the ratio between the duration of the first time period and the duration of the second time period are not limited to the above examples, and other cases that the charging speed of the pixel circuit to the pixel unit can be increased without increasing the load of the pixel circuit all belong to the protection scope of the embodiment of the present application.
It is understood that when the ratio of the duration of the first time period to the duration of the second time period is 3:2, the first charging voltage is gradually increased in the first time period, so that the charging speed of the pixel circuit 20 to the pixel unit 21 can be better increased, and the display effect of the display device 100 can be improved.
Wherein the first charging voltage is increased stepwise during said first period of time, for example, the pixel is charged with a voltage of 10V for one third of the first period of time, the pixel is charged with a voltage of 12V for two thirds of the first period of time, and the pixel is charged with a voltage of 15V for the last one third of the first period of time.
The first charging voltage is gradually increased, which may be understood as the first charging voltage may be increased in a step-by-step manner, the first charging voltage may also be increased in a linear manner, or the first charging voltage is increased in a curve manner, wherein the first charging voltage is increased in a curve manner, so that the display panel can more uniformly display the image. The increasing curve may be J-shaped or S-shaped.
An embodiment of the present invention further provides a driving method of a pixel circuit, please refer to fig. 7, where fig. 7 is a schematic flow chart of the driving method of the pixel circuit provided in the embodiment of the present application, and the method includes:
s101, when the pixel circuit works, the gate driving unit inputs a first charging voltage in a first time period of each display period.
S102, inputting a second charging voltage into the pixel unit in a second time period of each display period; wherein the first charging voltage is greater than the second charging voltage.
According to the driving method of the pixel circuit, the gate driving unit inputs the first charging voltage to the pixel unit in the first time period of each display period, and inputs the second charging voltage to the pixel unit in the second time period of each display period, and the first charging voltage is larger than the second charging voltage, so that the pixel voltage of the pixel unit in the first time period can be increased, the charging speed of the pixel unit can be increased, and the display effect of the display device can be improved.
The pixel circuit, the driving method thereof, the display device, and the electronic device provided in the embodiments of the present application are described in detail above. The principles and implementations of the present application are described herein using specific examples, which are presented only to aid in understanding the present application. Meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (12)
1. A pixel circuit, comprising:
a pixel unit; and
the gate driving unit is electrically connected with the pixel unit and is used for inputting a first charging voltage to the pixel unit in a first time period of each display period and inputting a second charging voltage to the pixel unit in a second time period of each display period so as to charge the pixel unit;
wherein the first charging voltage is greater than the second charging voltage.
2. The pixel circuit according to claim 1, wherein the gate driving unit comprises:
a timing controller for generating a first clock signal during a first period of each display period and a second clock signal during a second period of each display period; and
and the gate driving subunit is respectively electrically connected with the time schedule controller and the pixel unit, and is used for inputting the first charging voltage to the pixel unit according to the first clock signal and inputting the second charging voltage to the pixel unit according to the second clock signal.
3. The pixel circuit according to claim 2, wherein the first clock signal comprises a first high level and the second clock signal comprises a second high level, wherein the first high level is greater than the second high level.
4. The pixel circuit according to claim 2, wherein the gate driving unit is further configured to stop charging the pixel unit in a third time period of each display period.
5. The pixel circuit according to claim 4, wherein the timing controller is further configured to generate a third clock signal in a third period of each display period, and the gate driving subunit is further configured to stop charging the pixel unit according to the third clock signal.
6. The pixel circuit according to claim 5, wherein the third clock signal comprises a low level.
7. The pixel circuit according to any of claims 1-6, wherein a duration of the first period is greater than or equal to a duration of the second period.
8. The pixel circuit according to any of claims 1-6, wherein the first charging voltage is increased in steps during the first period of time.
9. The pixel circuit according to any of claims 1-6, wherein a ratio of a duration of the first period to a duration of the second period is 3: 2.
10. a display device comprising a pixel circuit according to any one of claims 1 to 9.
11. An electronic apparatus characterized by comprising a display device according to claim 10.
12. A driving method of a pixel circuit is applied to the pixel circuit, and is characterized in that the pixel circuit comprises a pixel unit and a grid driving unit, wherein the grid driving unit is electrically connected with the pixel unit; the driving method of the pixel circuit includes:
the gate driving unit inputs a first charging voltage to the pixel unit in a first time period of each display period;
the grid driving unit inputs a second charging voltage to the pixel unit in a second time period of each display period;
wherein the first charging voltage is greater than the second charging voltage.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114519985A (en) * | 2022-01-21 | 2022-05-20 | 重庆惠科金渝光电科技有限公司 | Pixel charging method and liquid crystal display device |
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| CN113450732B (en) | 2023-06-02 |
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