US 12,272,327 B2
Method for driving display panel, and display apparatus
Yanting Huang, Beijing (CN); Liugang Zhou, Beijing (CN); Lei Guo, Beijing (CN); Jianwei Sun, Beijing (CN); and Kai Chen, Beijing (CN)
Assigned to Hefei BOE Display Technology Co., Ltd., Anhui (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
Appl. No. 18/687,600
Filed by Hefei BOE Display Technology Co., Ltd., Anhui (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed Nov. 2, 2021, PCT No. PCT/CN2021/128106
§ 371(c)(1), (2) Date Feb. 28, 2024,
PCT Pub. No. WO2023/077258, PCT Pub. Date May 11, 2023.
Prior Publication US 2024/0386859 A1, Nov. 21, 2024
Int. Cl. G09G 3/36 (2006.01); G09G 3/20 (2006.01)
CPC G09G 3/3607 (2013.01) [G09G 3/2092 (2013.01); G09G 3/3648 (2013.01); G09G 2320/0242 (2013.01); G09G 2340/16 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A driving method for a display panel, comprising:
obtaining display data of a current frame and display data of a previous frame;
determining whether the display data of the current frame and the display data of the previous frame are same; and
in response to the display data of the current frame and the display data of the previous frame being not same, driving the display panel to display after converting a default grayscale voltage corresponding to at least one sub-pixel among default grayscale voltages of a default number of grayscale bits carried in the display data of the current frame into a target grayscale voltage of a target number of grayscale bits;
wherein:
for a same sub-pixel, there is a default voltage difference between a default grayscale voltage corresponding to the sub-pixel and a voltage on a common electrode, and there is a target voltage difference between a target grayscale voltage corresponding to the sub-pixel and the voltage on the common electrode, wherein the target voltage difference is greater than the default voltage difference; and
there is a target grayscale voltage difference between a target grayscale voltage corresponding to a maximum positive grayscale value of the target number of grayscale bits and a target grayscale voltage corresponding to a maximum negative grayscale value of the target number of grayscale bits, and there is a default grayscale voltage difference between a default grayscale voltage corresponding to a maximum positive grayscale value of the default number of grayscale bits and a default grayscale voltage corresponding to a maximum negative grayscale value of the default number of grayscale bits, wherein the target grayscale voltage difference is greater than the default grayscale voltage difference.