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:
Dec. 10, 2013
Filed:
Jan. 19, 2010
Meng-tse Weng, Tainan County, TW;
Meng-Tse Weng, Tainan County, TW;
Himax Technologies Limited, Tainan, TW;
Abstract
A gamma voltage generation circuit is provided. The gamma voltage generation circuit includes a plurality of resistor strings, a plurality of second resistors and a plurality of switches. Each of the resistor strings has a plurality of first resistors connected in series. Each of ends of the first resistors provides a gamma reference voltage. Each of second resistors is connected in series with the resistor strings. Each of the switches is coupled to a corresponding one of the resistor strings, selects and outputs one of the gamma reference voltages provided by the ends of the first resistors of the corresponding one of the resistor strings according to a control signal. Therefore, levels of the gamma voltages can synchronously displaced, so that the effects presented by pixels with different common voltage levels are similar or equal.