The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 23, 2019

Filed:

Aug. 04, 2016
Applicants:

Boe Technology Group Co., Ltd., Beijing, CN;

Ordos Yuansheng Optoelectronics Co., Ltd., Inner Mongolia, CN;

Inventors:

Zhiguang Zhang, Beijing, CN;

KwangGyun Jang, Beijing, CN;

Chang Zhang, Beijing, CN;

Hualing Yang, Beijing, CN;

Jing Liu, Beijing, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/20 (2006.01); G09G 3/3225 (2016.01);
U.S. Cl.
CPC ...
G09G 3/2074 (2013.01); G09G 3/2003 (2013.01); G09G 3/3225 (2013.01); G09G 2320/0276 (2013.01); G09G 2320/0626 (2013.01); G09G 2320/0673 (2013.01);
Abstract

Embodiments of the present disclosure provide gamma correction method and device for a display module. The gamma correction method includes: determining, for each sub-pixel of a display module to be corrected, the highest data voltage and the lowest data voltage after gamma correction of the highest gray scale and the lowest gray scale of the display module; determining at least one set of alternative gamma register values that are capable of performing gamma correction of the display module; determining at least one set of gamma register values to be corrected for respective gray scales before the gamma correction of the display module; and performing gamma correction of the display module by adjusting the gamma register value corresponding to the gray scale to be corrected which needs to perform gamma correction.


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