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1. (WO2017173756) METHOD AND DEVICE FOR ACQUIRING MURA COMPENSATION VALUE, AND DISPLAY PANEL

Pub. No.:    WO/2017/173756    International Application No.:    PCT/CN2016/094614
Publication Date: Fri Oct 13 01:59:59 CEST 2017 International Filing Date: Fri Aug 12 01:59:59 CEST 2016
IPC: G09G 3/20
Applicants: BOE TECHNOLOGY GROUP CO., LTD.
京东方科技集团股份有限公司
BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
北京京东方光电科技有限公司
Inventors: HE, Zongze
何宗泽
WANG, Jieqiong
王洁琼
SU, Dan
苏丹
LI, Shuo
李硕
YANG, Jianguang
杨建光
FENG, Zhipeng
冯志鹏
ZHANG, Liang
张亮
Title: METHOD AND DEVICE FOR ACQUIRING MURA COMPENSATION VALUE, AND DISPLAY PANEL
Abstract:
A method and device for acquiring a mura compensation value, and a display panel. The method comprises: acquiring an image of a detection picture on a display panel, and extracting a display data matrix of three primary colours and a first correction matrix of three primary colours therefrom (steps A and B); acquiring position coordinates of an extreme point of the first correction matrix of three primary colours (step C); obtaining a second correction matrix of three primary colours and a third correction matrix set (steps D and E); and obtaining, according to the third correction matrices, a compensation matrix as a mura compensation value of the display panel (step F). The compensation mode is more intricate, and the compensation precision and accuracy are more high; moreover, compensation is performed only when a deviation exceeds a certain threshold value; when the compensation precision is improved, the data volume of generated compensation data is relatively small, and the calculation speed is fast, thereby reducing the algorithm complexity; moreover, gray-scale value compensation is performed on a display panel by using a compensation matrix, and the mura of the display panel can be eliminated, thereby improving the display effect of the display panel and improving the product yield rate.