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:
Feb. 06, 2018

Filed:

Nov. 15, 2012
Applicant:

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

Inventors:

Xiaochuan Chen, Beijing, CN;

Hailin Xue, Beijing, CN;

Yanna Xue, Beijing, CN;

Yue Li, Beijing, CN;

Xuelu Wang, Beijing, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/36 (2006.01); G11C 19/28 (2006.01); H03K 17/687 (2006.01);
U.S. Cl.
CPC ...
G09G 3/3611 (2013.01); G09G 3/3677 (2013.01); G11C 19/28 (2013.01); H03K 17/6871 (2013.01); G09G 2300/0408 (2013.01); G09G 2310/0286 (2013.01); G09G 2310/0291 (2013.01); G09G 2310/08 (2013.01);
Abstract

A gate driving circuit comprises GOA units of multiple stages. Each GOA unit includes a pull-up module and an output module. The pull-up module outputs a second clock signal to the output module when an input signal is at a high level; and the output module is turned on when the second clock signal is at a high level, and outputs a third clock signal as a first gate driving signal and outputs a fourth clock signal as a second gate driving signal when being turned on; the third clock signal and the fourth clock signal have opposite phases but the same cycle, and the cycle of the second clock signal is twice that of the third clock signal. It also discloses a liquid crystal display and a gate driving method, two rows of pixels are driven by one GOA unit, thus the space for disposing TFTs is saved, the sealing area of the LCD is reduced.


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