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:
Mar. 03, 2015

Filed:

Mar. 13, 2013
Applicant:

AU Optronics Corp., Hsin-Chu, TW;

Inventors:

Ching-Hui Chang, Hsin-Chu, TW;

Pin-Yu Chan, Hsin-Chu, TW;

Kai-Wei Hong, Hsin-Chu, TW;

Yung-Chih Chen, Hsin-Chu, TW;

Assignee:

AU Optronics Corp., Science-Based Industrial Park, Hsin-Chu, TW;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G11C 19/00 (2006.01); H03K 3/015 (2006.01); G09G 3/36 (2006.01);
U.S. Cl.
CPC ...
H03K 3/015 (2013.01); G09G 3/3655 (2013.01);
Abstract

A shift register of a gate driving circuit includes a pull-up unit for pulling up a first output signal and a first gate signal to a high voltage level according to a driving voltage and a high-frequency clock signal, a start-up unit for transmitting a second gate signal, an energy-store unit for providing the driving voltage to the pull-up unit according to the second gate signal, a first discharging unit for pulling down the driving voltage to a first voltage level according to a first control signal, a first leakage-preventing unit for turning off the first discharging unit when the first gate signal reaches the high voltage level, a first pull-down unit for respectively pulling down the first output and first gate signals to the first and a second voltage levels according to the first control signal, and a first control unit for generating the first control signal.


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