US 12,223,875 B2
Method and apparatus for compensating for brightness of display panel, display device, and storage medium
Zewen Li, Beijing (CN); Hengzhen Liang, Beijing (CN); Lianbin Liu, Beijing (CN); Wenxiao Niu, Beijing (CN); Can Xiao, Beijing (CN); and Yingjun Deng, Beijing (CN)
Assigned to Chengdu BOE Optoelectronics Technology Co., Ltd., Sichuan (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
Appl. No. 18/028,358
Filed by Chengdu BOE Optoelectronics Technology Co., Ltd., Sichuan (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed Apr. 28, 2022, PCT No. PCT/CN2022/089958
§ 371(c)(1), (2) Date Mar. 24, 2023,
PCT Pub. No. WO2023/206258, PCT Pub. Date Nov. 2, 2023.
Prior Publication US 2024/0312385 A1, Sep. 19, 2024
Int. Cl. G09G 3/20 (2006.01); G09G 3/3208 (2016.01)
CPC G09G 3/2007 (2013.01) [G09G 3/3208 (2013.01); G09G 2320/0233 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method for compensating for brightness of a display panel, comprising:
acquiring a brightness value of the display panel;
acquiring, based on the brightness value of the display panel, a compensation function corresponding to the brightness value, and compensation parameters of the compensation function; and
compensating for brightness of an image to be displayed by the display panel by using the compensation function corresponding to the brightness value;
wherein a degree at which the brightness of the image to be displayed by the display panel is compensated is negatively correlated with the brightness value of the display panel,
wherein acquiring, based on the brightness value of the display panel, the compensation function corresponding to the brightness value, and the compensation parameters of the compensation function comprises:
acquiring the compensation function corresponding to the brightness value, based on the brightness value of the display panel and a first corresponding relationship between brightness values of the display panel and compensation functions; and
acquiring the compensation parameters of the compensation function corresponding to the brightness value, based on the brightness value of the display panel and a second corresponding relationship between the brightness values of the display panel and groups of compensation parameters,
wherein compensating for the brightness of the image to be displayed by the display panel by using the compensation function corresponding to the brightness value comprises:
compensating for the brightness of the image to be displayed by the display panel by using a first compensation function, after the brightness value of the display panel is determined to be within a first brightness range based on the brightness value of the display panel; and
compensating for the brightness of the image to be displayed by the display panel by using a second compensation function, after the brightness value of the display panel is determined to be within a second brightness range based on the brightness value of the display panel,
wherein the first corresponding relationship comprises: a corresponding relationship between the first brightness range and the first compensation function, and a corresponding relationship between the second brightness range and the second compensation function; and
a lower limit value of the first brightness range is greater than an upper limit value of the second brightness range, and a degree at which the brightness of the image to be displayed by the display panel is compensated by using the first compensation function is smaller than a degree at which the brightness of the image to be displayed by the display panel is compensated by using the second compensation function.