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 8558821 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 15, 2013

Filed:

Aug. 22, 2011
Applicants:

Chih-chun Yu, Taoyuan County, TW;

Chia-yi LU, Taoyuan County, TW;

Inventors:

Chih-Chun Yu, Taoyuan County, TW;

Chia-Yi Lu, Taoyuan County, TW;

Assignee:

Chunghwa Picture Tubes, Ltd., Bade, Taoyuan, TW;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 3/038 (2013.01); G09G 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A power device capable of improving a flicker of a liquid crystal display includes a direct current (DC) voltage/direct current (DC) voltage converter, a common voltage circuit, and a clamper. The DC voltage/DC voltage converter is used for generating a DC low gate voltage. The common voltage circuit receives a polarity reversion signal generated by a timing control circuit, and generates an alternating current (AC) common voltage according to the polarity reversion signal. The clamper is coupled to the DC voltage/DC voltage converter and the common voltage circuit for receiving the DC low gate voltage and the AC common voltage, outputting the AC common voltage and outputting an AC low gate voltage according to the DC low gate voltage and the AC common voltage. A display panel improves the flicker according to the AC low gate voltage.


Find Patent Forward Citations

Yu, Chih-Chun. (2013). Power device capable of improving flicker of a liquid crystal display, liquid crystal display capable of improving flicker, and method capable of improving flicker of a liquid crystal display (U.S. Patent No. 8558821). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8558821

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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