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:
Dec. 20, 2016

Filed:

May. 29, 2015
Applicant:

Novatek Microelectronics Corp., Hsin-Chu, TW;

Inventors:

Po-Ching Li, Hsinchu, TW;

Chao-Chih Hsiao, Taipei, TW;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H05B 37/02 (2006.01); G09G 3/36 (2006.01);
U.S. Cl.
CPC ...
G09G 3/3677 (2013.01); G09G 3/3648 (2013.01); H05B 37/02 (2013.01); G09G 2320/0219 (2013.01);
Abstract

Output stage circuit is added to the gate driving circuit of the LCD. The output stage circuit moderates the falling slope of the gate driving signal so as to reduce the feed-through phenomenon. The output stage circuit includes a discharge unit, coupled to a gate line of the gate driving circuit for discharging the gate line to a first supply voltage; a first charge unit, coupled to the gate line of the gate driving circuit for charging the gate line with a second supply voltage; a second charge unit, coupled to the gate line of the gate driving circuit for charging the gate line with the second supply voltage; and a control circuit for controlling the first and the second charge units, and the discharge unit according to a timing controller of the LCD; wherein the control circuit sequentially turns on the first and the second charge units.


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