US 12,293,734 B2
Compensation device, display panel, and compensation method thereof
Ling Xu, Guangdong (CN); Qian Wang, Guangdong (CN); Xinyi Kang, Guangdong (CN); Kaiyong Yi, Guangdong (CN); and Yufeng Jin, Guangdong (CN)
Assigned to TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD., Shenzhen (CN)
Filed by TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD., Guangdong (CN)
Filed on Jun. 7, 2023, as Appl. No. 18/330,638.
Claims priority of application No. 202310145249.0 (CN), filed on Jan. 31, 2023.
Prior Publication US 2024/0257776 A1, Aug. 1, 2024
Int. Cl. G09G 3/36 (2006.01)
CPC G09G 3/3607 (2013.01) [G09G 2300/0842 (2013.01); G09G 2310/027 (2013.01); G09G 2320/0626 (2013.01); G09G 2320/0673 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A compensation method of a display panel, comprising:
controlling a first display part of a target panel to display a light load image based on a standard gamma curve, wherein corresponding sub-pixels in an N1th row electrically connected to a first data line in the light load image are displayed in a first preset gray scale, corresponding sub-pixels in an (N1+1)th row are displayed in a first gray scale, and N1 is a positive integer;
controlling a second display part of the target panel to display a heavy load image, wherein the second display part is located on at least one side of the first display part, corresponding sub-pixels in an N2 row electrically connected to a second data line in the heavy load image are displayed in a second preset gray scale, corresponding sub-pixels in an (N2+1)th row are displayed in the first gray scale, N2 is a positive integer, N2 is equal to or not equal to N1, the first data line and the second data line are the same or different, and the sub-pixels in the (N1+1)th row and the sub-pixels in the (N2+1)th row are both first color sub-pixels;
acquiring a first brightness of the first color sub-pixels in the (N1+1)th row electrically connected to the first data line of the first display part;
acquiring a second brightness of the first color sub-pixels in the (N2+1)th row of a first sub-display part of the second display part electrically connected to the second data line; and
according to a difference between the first brightness and the second brightness, determining a first compensation data corresponding to the first gray scale and the second preset gray scale of at least the first color sub-pixels of the first sub-display part in the target panel;
wherein corresponding sub-pixels in an N3th row electrically connected to a third data line in the heavy load image are displayed in a third preset gray scale, the first color sub-pixels corresponding to an (N3+1)th row are displayed in the second gray scale, the third preset gray scale is the same as or different from the second preset gray scale, and/or the second gray scale is the same as or different from the first gray scale, N3, N2, and N1 are the same or not the same, and the first data line, the second data line, and the third data line are the same or different, the method further comprises:
acquiring a third brightness of the first color sub-pixels in an (N3+1)th row electrically connected to the third data line in a second sub-display part of the second display part, and the third brightness is different from the second brightness;
according to a difference between the first brightness and the third brightness, determining a second compensation data of at least the first color sub-pixels of the second sub-display part in the target panel corresponding to the second gray scale and the third preset gray scale.