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.:
Date of Patent:
Mar. 15, 2022
Filed:
Jan. 09, 2020
Applicant:
Wuhan China Star Optoelectronics Technology Co., Ltd., Hubei, CN;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1362 (2006.01); G02F 1/1335 (2006.01); G02F 1/1343 (2006.01); G09G 3/36 (2006.01); G02F 1/133 (2006.01); G02F 1/1333 (2006.01); G09G 3/00 (2006.01); G02F 1/1345 (2006.01);
U.S. Cl.
CPC ...
G02F 1/136254 (2021.01); G02F 1/13306 (2013.01); G02F 1/13439 (2013.01); G02F 1/13454 (2013.01); G02F 1/133357 (2021.01); G02F 1/133514 (2013.01); G02F 1/136286 (2013.01); G09G 3/006 (2013.01); G09G 3/3677 (2013.01);
Abstract
The present application provides a liquid crystal display panel and a display device. Invalid pixels of the liquid crystal display panel include a test pixel. In this structure, when no tests are required, the test pixel is in an off state, and there is no voltage difference between a pixel electrode and a common electrode to cause rotation of liquid crystals. When a test is required, the test pixel is in an on state, and the pixel electrode is disconnected from the common electrode to cause a voltage difference, so that the liquid crystals are normally rotated.