US 12,347,370 B2
Compensation method and apparatus for display device, and storage medium
Huihui Li, Beijing (CN); Wenchao Bao, Beijing (CN); Song Meng, Beijing (CN); Jingbo Xu, Beijing (CN); Miao Liu, Beijing (CN); and Cheng Xu, Beijing (CN)
Assigned to HEFEI BOE JOINT TECHNOLOGY CO., LTD., Anhui (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 18/275,228
Filed by Hefei BOE Joint Technology Co., Ltd., Anhui (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed Jul. 28, 2022, PCT No. PCT/CN2022/108673
§ 371(c)(1), (2) Date Aug. 1, 2023,
PCT Pub. No. WO2024/020943, PCT Pub. Date Feb. 1, 2024.
Prior Publication US 2025/0006121 A1, Jan. 2, 2025
Int. Cl. G09G 3/32 (2016.01); G09G 3/3225 (2016.01)
CPC G09G 3/3225 (2013.01) [G09G 3/32 (2013.01); G09G 2300/0819 (2013.01); G09G 2300/0842 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/0295 (2013.01); G09G 2320/045 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A compensation method for a display device, wherein the display device comprises a plurality of detection lines and a plurality of pixels arranged in arrays, each of the detection lines being connected to a column of pixels of the plurality of pixels, and each of the pixels comprising a plurality of subpixels;
the method comprising:
acquiring first detection voltages of the plurality of subpixels during a first shutdown compensation process;
acquiring first position indication information based on the first detection voltages of the plurality of subpixels, wherein the first position indication information indicates column positions of pixels to which a plurality of first subpixels of the plurality of subpixels belong, wherein the plurality of first subpixels are connected to a first detection line of the plurality of detection lines, and an absolute value of a difference between the first detection voltage of any of the plurality of first subpixels and a first detection voltage of a second subpixel is greater than a first threshold, the second subpixel being a subpixel connected to a second detection line adjacent to the first detection line; and
determining first compensation data based on the first position indication information, wherein the first compensation data comprises first threshold compensation voltages of the plurality of subpixels, and an absolute value of a difference between the first threshold compensation voltage of the first subpixel and a first reference value is less than an absolute value of a difference between a second threshold compensation voltage of the first subpixel in the first compensation data and the first reference value, the first reference value being a threshold voltage of a drive thin film transistor of the first subpixel, and the second threshold compensation voltage of the first subpixel being calculated based on the first detection voltage of the first subpixel,
wherein the determining the first compensation data based on the first position indication information comprises:
determining the first threshold compensation voltage of the first subpixel by determining a third threshold compensation voltage of the first subpixel during a third shutdown compensation process as the first threshold compensation voltage of the first subpixel, wherein the third shutdown compensation process is prior to the first shutdown compensation process, and an absolute value of a difference between a third threshold compensation voltage of the first subpixel upon the third shutdown compensation process and the first reference value is less than the absolute value of the difference between the second threshold compensation voltage of the first subpixel and the first reference value.