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 8520033 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 27, 2013

Filed:

Apr. 21, 2010
Applicant:

Jen-wen Cheng, Tainan County, TW;

Inventor:

Jen-Wen Cheng, Tainan County, TW;

Assignee:

Himax Technologies Limited, Sinshih Township, Tainan County, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 5/10 (2006.01);
U.S. Cl.
CPC ...
Abstract

An image display system and a pixel array driving method thereof are disclosed. The image display system has a source driver having a first and a second digital-to-analog converter and a first and a second switching circuit. The first digital-to-analog converter converts an N-bit digital code to a first analog signal, where N is a positive integer. The second digital-to-analog converter converts a K-bit digital code to a second analog signal, where K is a positive integer and is smaller than N. The first switching circuit controls coupling between a first display data, a second display data and the first and second digital-to-analog converters, and, the second switching circuit controls connections between the first and second analog signals and a first and a second operational amplifier. The first and second operational amplifiers are coupled to a first and a second data line of a pixel array, respectively.


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