US 12,354,518 B2
Brightness determination method, device, display panel, electronic equipment, and storage medium
Min He, Beijing (CN); Jingbo Xu, Beijing (CN); Song Meng, Beijing (CN); and Pengfei Yin, Beijing (CN)
Assigned to HEFEI BOE JOINT TECHNOLOGY CO., LTD., Anhui (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 18/150,261
Filed by HEFEI BOE JOINT TECHNOLOGY CO., LTD., Hefei (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Dec. 21, 2021, PCT No. PCT/CN2021/140069
§ 371(c)(1), (2) Date Jan. 5, 2023,
PCT Pub. No. WO2023/115329, PCT Pub. Date Jun. 29, 2023.
Prior Publication US 2025/0148955 A1, May 8, 2025
Int. Cl. G09G 3/20 (2006.01)
CPC G09G 3/2092 (2013.01) [G09G 2320/0233 (2013.01); G09G 2320/0626 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A brightness determination method, used for a display panel, wherein the display panel comprises a plurality of pixels, the method comprises:
determining, based on an image to be displayed, first display brightness values corresponding to the plurality of pixels respectively;
determining, based on the first display brightness values corresponding to the plurality of pixels respectively, a reference average picture level corresponding to the image to be displayed; and
determining, based on the reference average picture level and information about a relationship between an average picture level and a maximum display brightness value, a target maximum display brightness value corresponding to the display panel during display of the image to be displayed,
wherein a value range corresponding to the average picture level comprises at least two segment intervals, the information about the relationship comprises information on variation of the maximum display brightness value with the average picture level in the at least two segment intervals; in different segment intervals, the maximum display brightness value varies at different rates with the average picture level; in at least one of the segment intervals, the maximum display brightness value decreases as the average picture level increases;
wherein determining, based on the first display brightness values corresponding to the plurality of pixels respectively, the reference average picture level corresponding to the image to be displayed, comprises:
determining, based on the image to be displayed, display colors corresponding to the plurality of pixels respectively;
determining, based on the display colors corresponding to the plurality of pixels respectively, at least one target display color, wherein a ratio between a quantity of pixels displaying each of the at least one target display color and a quantity of the plurality of pixels is greater than a proportion threshold;
selecting at least one pixel corresponding to the at least one target display color from the plurality of pixels as the at least one target pixel; and
determining, based on at least one first display brightness value corresponding to the at least one target pixel, the reference average picture level corresponding to the image to be displayed.