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:
Jan. 29, 2013
Filed:
Jan. 29, 2008
Chien-fan Tung, Miao-Li, TW;
Shun-ming Huang, Shenzhen, CN;
Chien-Fan Tung, Miao-Li, TW;
Shun-Ming Huang, Shenzhen, CN;
Innocom Technology (Shenzhen) Co., Ltd., Shenzhen, CN;
Chimei Innolux Corporation, Miaoli County, TW;
Abstract
An exemplary liquid crystal display device () includes a plurality of pixel electrode (), a common electrode (), a data driving circuit () configured for providing data voltages to each pixel electrode, and a common voltage generating circuit () configured for providing a common voltage to the common electrode. The common voltage generating circuit includes a hysteresis comparator circuit () and a direct current voltage adjusting circuit (). The hysteresis comparator circuit is configured for providing an alternating current voltage, and the direct current voltage adjusting circuit is configured for providing a direct current voltage with periodic change. The direct current voltage is configured for superimposing on the alternating current voltage to form a common voltage, and an absolute value of the common voltage changes only slightly within a predetermined range from each frame to the next adjacent frame. A method for driving the liquid crystal display device is also provided.