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 9460676 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 04, 2016

Filed:

Nov. 27, 2014
Applicant:

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

Inventors:

Chao Dai, Shenzhen, CN;

Tzu-Chieh Lai, Shenzhen, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/36 (2006.01);
U.S. Cl.
CPC ...
G09G 3/3648 (2013.01); G09G 3/3677 (2013.01); G09G 3/3696 (2013.01); G09G 2300/0871 (2013.01); G09G 2310/0286 (2013.01);
Abstract

A GOA circuit applied to a liquid crystal display is disclosed, which comprises a plurality of cascaded shift register units, an (N)th level shift register unit is controlled to charge an (N)th level scanning line accordingly. The (N)th level shift register unit includes a pull-up circuit, a pull-down circuit, a pull-down sustain circuit, a pull-up control circuit, a down transfer circuit, and an bootstrap capacitor, and a display device is also disclosed herein. By replacing scanning lines with a constant voltage VDD or two voltages to accomplish the function of down transfer, the loading of scanning lines and the risk which comes with wiring step-by-step are decreased, forward-scanning operation and backward-scanning operation are accomplished accordingly.


Find Patent Forward Citations

Dai, Chao. (2016). Goa circuit and liquid crystal display device applied to liquid crystal displays (U.S. Patent No. 9460676). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9460676

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