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.:
Date of Patent:
May. 22, 2012
Filed:
Sep. 01, 2010
Applicants:
Wei-kai Tseng, Tainan County, TW;
Chin-tien Chang, Tainan County, TW;
Inventors:
Wei-Kai Tseng, Tainan County, TW;
Chin-Tien Chang, Tainan County, TW;
Assignee:
Himax Technologies Limited, Fonghua Village, Xinshi Dist., Tainan, TW;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/66 (2006.01);
U.S. Cl.
CPC ...
Abstract
A source driver includes at least a channel, and the channel includes an N-type digital-to-analog converter (NDAC) and an operational amplifier. The NDAC is utilized for receiving input data and selecting one of a plurality of gamma voltages to generate output data according to the input data. The operational amplifier is coupled to the NDAC, and is utilized for amplifying at least the output data to generate an amplified output data. In addition, the channel does not include any P-type digital-to-analog converter.