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:
Apr. 24, 2012
Filed:
May. 29, 2008
Hiroyuki Takahashi, Funabashi, JP;
Hiroyuki Takahashi, Funabashi, JP;
Hitachi Displays, Ltd., Chiba, JP;
Panasonic Liquid Crystal Display Co., Ltd., Hyogo-ken, JP;
Abstract
A liquid crystal display device included in a compact portable device reduces burden imposed on a driver circuit for driving counter electrodes and produces images having preferable quality. The liquid crystal display device includes liquid display element and liquid crystal driving circuit. The liquid crystal driving circuit drives two counter electrode signal lines during one scanning period for driving one scanning signal line. Counter signals having different polarities are supplied to the two counter signal lines. Since the number of pixels operated by one counter electrode signal line is decreased to half, burden imposed during drive of counter electrodes is reduced.