US 12,431,064 B2
Luminance compensation method of display panel, luminance compensation apparatus, luminance compensation device, and storage medium
Zhiqiang Ge, Xiamen (CN); Yinzeng Li, Xiamen (CN); Yang Liu, Xiamen (CN); and Jingxiong Zhou, Xiamen (CN)
Assigned to XIAMEN TIANMA DISPLAY TECHNOLOGY CO., LTD., Xiamen (CN)
Filed by Xiamen Tianma Display Technology Co., Ltd., Xiamen (CN)
Filed on Jun. 2, 2023, as Appl. No. 18/204,967.
Claims priority of application No. 202310122927.1 (CN), filed on Feb. 16, 2023.
Prior Publication US 2024/0274061 A1, Aug. 15, 2024
Int. Cl. G09G 3/30 (2006.01)
CPC G09G 3/30 (2013.01) [G09G 2320/0233 (2013.01); G09G 2354/00 (2013.01); G09G 2360/16 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A luminance compensation method of a display panel, wherein the display panel comprises at least one first touch electrode and at least one second touch electrode staggered with each other, the method comprises:
acquiring first correspondence relationships respectively corresponding to touch sensing regions, each of the first correspondence relationships being a correspondence relationship of light-emitting luminance and mutual capacitance, each of the touch sensing regions being a capacitance variable region formed by a single first touch electrode and a single second touch electrode;
acquiring first mutual capacitances of the touch sensing regions transmitted by a touch chip, each of the first mutual capacitances being a coupling capacitance of a single first touch electrode and a single second touch electrode;
determining actual luminance values of light-emitting pixel regions respectively corresponding to the touch sensing regions according to the first mutual capacitances and the first correspondence relationships of the touch sensing regions, each of the light-emitting pixel regions comprising at least one light-emitting pixel; and
generating a compensation instruction according to the actual luminance values and target luminance values of the light-emitting pixel regions to cause a driving chip to make luminance compensation for the light-emitting pixel regions according to the compensation instruction;
wherein before acquiring the first correspondence relationships respectively corresponding to the touch sensing regions, the method further comprises:
displaying white image pictures of different light-emitting luminance values according to a received image display instruction;
acquiring second mutual capacitances corresponding to each of the touch sensing regions under the white image pictures of the different light-emitting luminance values;
storing the second mutual capacitances corresponding to each of the touch sensing regions, or storing the first correspondence relationships respectively corresponding to the touch sensing regions, each of the first correspondence relationships being generated respectively according to the second mutual capacitances and the different light-emitting luminance values.