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:
Sep. 03, 2019

Filed:

Jun. 13, 2016
Applicant:

Wuhan China Star Optoelectronics Technology Co., Ltd., Wuhan, Hubei, CN;

Inventor:

Yafeng Li, Hubei, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/36 (2006.01); G02F 1/1368 (2006.01); G02F 1/1345 (2006.01); H01L 27/12 (2006.01); G02F 1/1362 (2006.01); H01L 29/786 (2006.01);
U.S. Cl.
CPC ...
G09G 3/3677 (2013.01); G02F 1/1368 (2013.01); G02F 1/13454 (2013.01); H01L 27/124 (2013.01); H01L 27/1222 (2013.01); H01L 27/1255 (2013.01); G02F 1/136286 (2013.01); G02F 2202/104 (2013.01); G09G 2300/0408 (2013.01); G09G 2310/0251 (2013.01); G09G 2310/0283 (2013.01); G09G 2310/0289 (2013.01); G09G 2310/08 (2013.01); H01L 29/78672 (2013.01);
Abstract

The present disclosure proposes a GOA circuit having GOA units connected in a serial. Each GOA unit includes a scan-control module, an output module, a pull-down module, and an output adjusting module. By using the output adjusting module formed by a ninth TFT, a tenth TFT, an eleventh TFT, and a twelfth TFT, the voltage level of a fourth node transits between the high voltage level and the low voltage level with the second clock signal in either forward scanning or backward scanning. Compared with the conventional technology where the high and low voltage levels of the output terminal are mainly realized using the second TFT, the GOA circuit realizes that the output ability of the output terminal enhances and the charging capacity of in-plane pixels upgrades in the same period of time to improve the display effect of the liquid crystal panel.


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