Over-driving method and apparatus, display device, electronic device, and storage medium

1. An over-driving method for a display device, wherein the display device comprises a plurality of pixels, the plurality of pixels are arranged in a plurality of rows and a plurality of columns as an array, and the method comprises:

obtaining an initial compensation parameter according to a first average brightness level and a second average brightness level of a row of pixels, wherein the first average brightness level is an average brightness level of the row of pixels in a current frame, and the second average brightness level is an average brightness level of the row of pixels in a previous frame;

obtaining a first gain coefficient according to a value of a target pixel in the current frame and the second average brightness level corresponding to the row in which the target pixel is located, wherein the target pixel is one pixel in the row of pixels; and

obtaining a target compensation parameter of the target pixel according to the initial compensation parameter and the first gain coefficient.

2. The method according to claim 1 , wherein obtaining the first gain coefficient according to the value of the target pixel in the current frame and the second average brightness level corresponding to the row in which the target pixel is located comprises:

calculating an absolute value of a difference between the value of the target pixel in the current frame and the second average brightness level corresponding to the row in which the target pixel is located; and

determining the first gain coefficient according to the absolute value of the difference.

3. The method according to claim 2 , wherein determining the first gain coefficient according to the absolute value of the difference comprises:

taking the absolute value of the difference as an input of a preset function, and taking an output of the preset function as the first gain coefficient,

wherein the input and the output of the preset function are positively correlated.

4. The method according to claim 3 , wherein, in a case where the absolute value of the difference is 0, the first gain coefficient is 0; and

a value range of the first gain coefficient is from 0 to 1.

5. The method according to claim 1 , further comprising:

obtaining a second gain coefficient according to the value of the target pixel in the current frame and a value of an adjacent pixel in the current frame,

wherein the adjacent pixel is a pixel located in a same column as the target pixel among pixels in a previous row of the row in which the target pixel is located.

6. The method according to claim 5 , wherein obtaining the second gain coefficient according to the value of the target pixel in the current frame and the value of the adjacent pixel in the current frame comprises:

in response to an absolute value of a difference between the value of the target pixel in the current frame and the value of the adjacent pixel in the current frame being greater than a preset threshold, determining the second gain coefficient to be 0; and

in response to the absolute value of the difference between the value of the target pixel in the current frame and the value of the adjacent pixel in the current frame being less than or equal to the preset threshold, determining the second gain coefficient to be 1.

7. The method according to claim 5 , further comprising:

obtaining a third gain coefficient according to an image complexity parameter of the row in which the target pixel is located in the current frame and an image complexity parameter of the row in which the target pixel is located in the previous frame.

8. The method according to claim 7 , wherein the image complexity parameter is obtained according to image edge information.

9. The method according to claim 8 , wherein the image edge information comprises an absolute value of a difference between values of each two adjacent pixels among the pixels of the row in which the target pixel is located; and

the image complexity parameter comprises a sum by adding up every absolute value of the difference between the values of each two adjacent pixels among the pixels of the row in which the target pixel is located.

10. The method according to claim 7 , wherein obtaining the third gain coefficient according to the image complexity parameter of the row in which the target pixel is located in the current frame and the image complexity parameter of the row in which the target pixel is located in the previous frame comprises:

determining complexity of the row in which the target pixel is located in the current frame according to the image complexity parameter of the row in which the target pixel is located in the current frame;

determining complexity of the row in which the target pixel is located in the previous frame according to the image complexity parameter of the row in which the target pixel is located in the previous frame; and

determining the third gain coefficient according to the complexity of the row in which the target pixel is located in the current frame and the complexity of the row in which the target pixel is located in the previous frame.

11. The method according to claim 10 , wherein the complexity is divided into two categories of complication and simplicity;

in a case where the image complexity parameter is greater than a preset reference value, the complexity is complication; and

in a case where the image complexity parameter is less than or equal to the preset reference value, the complexity is simplicity.

12. The method according to claim 11 , wherein obtaining the third gain coefficient according to the complexity of the row in which the target pixel is located in the current frame and the complexity of the row in which the target pixel is located in the previous frame comprises:

determining the third gain coefficient to be 1, in response to the complexity of the row in which the target pixel is located in the current frame being identical to the complexity of the row in which the target pixel is located in the previous frame; and

determining the third gain coefficient to be a coefficient less than 1, in response to the complexity of the row in which the target pixel is located in the current frame being different from the complexity of the row in which the target pixel is located in the previous frame.

13. The method according to claim 12 , wherein determining the third gain coefficient to be the coefficient less than 1, in response to the complexity of the row in which the target pixel is located in the current frame being different from the complexity of the row in which the target pixel is located in the previous frame, comprises:

determining the third gain coefficient to be K1, in response to the complexity of the row in which the target pixel is located in the current frame being complication and the complexity of the row in which the target pixel is located in the previous frame being simplicity; and

determining the third gain coefficient to be K2, in response to the complexity of the row in which the target pixel is located in the current frame being simplicity and the complexity of the row in which the target pixel is located in the previous frame being complication,

where 0≤K1<1, 0≤K2<1, and K1 and K2 are not identical.

14. The method according to claim 7 , wherein obtaining the target compensation parameter of the target pixel according to the initial compensation parameter and the first gain coefficient comprises:

multiplying the initial compensation parameter, the first gain coefficient, the second gain coefficient, and the third gain coefficient, so as to obtain the target compensation parameter.

15. The method according to claim 1 , wherein obtaining the initial compensation parameter according to the first average brightness level and the second average brightness level of the row of pixels comprises:

performing lookup operation with a lookup table according to the first average brightness level and the second average brightness level, obtaining a table lookup result according to an interpolating method, and taking the table lookup result as the initial compensation parameter.

16. The method according to claim 1 , wherein the average brightness level comprises an average of values of respective pixels in the row of pixels, a value of each pixel comprises a theoretical data voltage of each pixel, and the value of the target pixel comprises the theoretical data voltage of the target pixel;

a sum of the target compensation parameter and the value of the target pixel serves as an actual data voltage supplied to the target pixel; and

the display device comprises an organic light emitting diode display device.

17. An electronic device, comprising:

a processor; and

a memory, comprising one or more computer program modules,

wherein the one or more computer program modules are stored in the memory and configured to be executed by the processor, and the one or more computer program modules are configured to implement the over-driving method for the display device according to claim 1 .

18. A storage medium, storing non-transitory computer readable instructions, wherein the non-transitory computer readable instructions, when executed by a computer, implement the over-driving method for the display device according to claim 1 .

19. An over-driving apparatus for a display device, wherein the display device comprises a plurality of pixels, the plurality of pixels are arranged in a plurality of rows and a plurality of columns as an array, and the over-driving apparatus comprises:

an initial comparing circuit, configured to obtain an initial compensation parameter according to a first average brightness level and a second average brightness level of a row of pixels, wherein the first average brightness level is an average brightness level of the row of pixels in a current frame, and the second average brightness level is an average brightness level of the row of pixels in a previous frame;

a first gaining circuit, configured to obtain a first gain coefficient according to a value of a target pixel in the current frame and the second average brightness level corresponding to the row in which the target pixel is located, wherein the target pixel is one pixel in the row of pixels; and

a compensating circuit, configured to obtain a target compensation parameter of the target pixel according to the initial compensation parameter and the first gain coefficient.

20. A display device, comprising the over-driving apparatus according to claim 19 .