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. 17, 2019

Filed:

Jan. 17, 2017
Applicant:

Shenzhen China Star Optoelectronics Technology Co., Ltd., Shenzhen, Guangdong, CN;

Inventors:

Tianhong Wang, Guangdong, CN;

Xujun Liu, Guangdong, CN;

Yi-fang Chou, Guangdong, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 19/00 (2006.01); G09G 3/36 (2006.01); G02F 1/136 (2006.01); G09G 3/3225 (2016.01); H03K 17/687 (2006.01); G06F 1/04 (2006.01); G09G 3/3266 (2016.01); G11C 19/28 (2006.01);
U.S. Cl.
CPC ...
G09G 3/3648 (2013.01); G02F 1/136 (2013.01); G06F 1/04 (2013.01); G09G 3/3225 (2013.01); G09G 3/3266 (2013.01); G09G 3/3677 (2013.01); G09G 3/3696 (2013.01); H03K 17/6871 (2013.01); G09G 2300/0408 (2013.01); G09G 2310/0264 (2013.01); G09G 2310/0278 (2013.01); G09G 2310/0286 (2013.01); G11C 19/28 (2013.01);
Abstract

The present disclosure discloses a GOA gate driving circuit includes a plurality of GOA driving units arranged in cascade, each level GOA driving unit includes a pull-up control part, a pull-up part, a first pull-down part and a pull-down holding part; wherein, each stage GOA driving unit further includes a second pull-down part coupled between the gate control signal and the reference low level signal, the second pull-down part being controlled by a pull-down signal for lowering the gate control signal to the reference low level signal; the phase of the pull-down signal lags behind the latter two-stage scan driving signal, and the pull-down signal is provided by a separate control chip. The present disclosure further discloses a liquid crystal display including a GOA gate driving circuit as described above.


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