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:
Sep. 14, 2010
Filed:
May. 30, 2006
Jiunn-yau Huang, Hsinhua, TW;
Jiunn-Yau Huang, Hsinhua, TW;
Himax Technologies Limited, Tainan County, TW;
Abstract
A gamma correction device and method for a display device are provided, which requires fewer look-up tables and small-size driving voltage generating circuits to generate three sets of driving voltages. A plurality of difference values between three gamma curves R, G, and B and a reference curve is stored in the look-up table. According to the look-up table, a selection signal SEL is obtained based on a gray scale signal. Moreover, a most significant bit (MSB) signal is extracted from the gray scale signal. Then, several analog voltages are generated from a voltage source through voltage division. After that, the selection signal and the MSB signal are decoded so as to select one from the analog voltages and convert to a driving voltage. The driving voltage is used to drive the display device.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile