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.

Patent No.:

US 10114241 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 30, 2018

Filed:

Aug. 11, 2016
Applicants:

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

Hefei Boe Optoelectronics Technology Co., Ltd., Anhui, CN;

Inventors:

Yisan Zhang, Beijing, CN;

Chun Wang, Beijing, CN;

Junsheng Chen, Beijing, CN;

Yuanhui Guo, Beijing, CN;

Yan Wang, Beijing, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/00 (2006.01); G02F 1/13 (2006.01); G01J 1/04 (2006.01); G01J 1/16 (2006.01);
U.S. Cl.
CPC ...
G02F 1/1309 (2013.01); G01J 1/0403 (2013.01); G01J 1/16 (2013.01);
Abstract

The present disclosure provides a method and a device for measuring mura levels of liquid crystal display devices. The method includes steps of: acquiring correspondence between standard brightness data differences and standard mura levels; acquiring a measurement brightness data difference of a test image displayed by a to-be-tested liquid crystal display device before and after the measurement; and acquiring a mura level corresponding to the measurement brightness data difference in accordance with the correspondence.


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