US 11,056,038 B2
Gray-scale compensation device and method for combined pixels, and display device
Bo Xu, Beijing (CN); Shuai Hou, Beijing (CN); Xinghong Liu, Beijing (CN); Can Zhang, Beijing (CN); Yang Liu, Beijing (CN); and Siqing Fu, Beijing (CN)
Assigned to BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN); and CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Chongqing (CN)
Appl. No. 15/773,790
Filed by BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN); and CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Chongqing (CN)
PCT Filed Sep. 30, 2017, PCT No. PCT/CN2017/104932
§ 371(c)(1), (2) Date May 4, 2018,
PCT Pub. No. WO2018/126749, PCT Pub. Date Jul. 12, 2018.
Claims priority of application No. 201710005236.8 (CN), filed on Jan. 4, 2017.
Prior Publication US 2020/0258443 A1, Aug. 13, 2020
Int. Cl. G09G 3/20 (2006.01)
CPC G09G 3/2007 (2013.01) [G09G 2320/0276 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A gray-scale compensation method for combined pixels, the combined pixels including a first pixel group and a second pixel group, the gray-scale compensation method comprising:
measuring a gamma curve of the first pixel group to obtain a first gamma curve;
measuring a gamma curve of the second pixel group to obtain a second gamma curve, wherein an aperture area of the first pixel group is different from an aperture area of the second pixel group;
obtaining a compensation voltage based on the first gamma curve and the second gamma curve; and
compensating the first pixel group or the second pixel group based on the compensation voltage.