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:
Oct. 16, 2012
Filed:
Feb. 27, 2009
Cheng-lung Chiang, Tainan County, TW;
Way-guo Tseng, Tainan County, TW;
Jui-lin Chang, Tainan County, TW;
Cheng-Lung Chiang, Tainan County, TW;
Way-Guo Tseng, Tainan County, TW;
Jui-Lin Chang, Tainan County, TW;
Himax Technologies Limited, Tainan, TW;
Abstract
A source driver with low consumption and the driving method thereof are provided herein. The source driver includes an output buffer with a first input terminal receiving a pixel signal, a second input terminal, and an output terminal coupled to the second input terminal and a display panel. The source driver also includes a pre-charge circuit pre-charges a first terminal of the display panel to a first preset voltage or a second preset voltage for a pre-charge period according to a polarity of a common voltage coupled to the display panel. The second preset voltage is smaller than the first preset voltage. The output buffer is inactivated during the pre-charge period and activated for a preset period after the pre-charge period. Therefore, the present invention reduces power consumption of the source driver.