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. 17, 2013
Filed:
Nov. 24, 2008
Hitoshi Nakatsuka, Osaka, JP;
Hitoshi Nakatsuka, Osaka, JP;
Funai Electric Co., Ltd., Daito-shi, Osaka, JP;
Abstract
The liquid crystal display devicehas a matrix arrangement of pixels which are formed by a liquid crystal layer, display electrodes disposed across the liquid crystal layer, and a counter electrode made of a transparent material and represents a tone (gray scale level) per pixel by applying a drive voltage to the liquid crystal layer, the drive voltage corresponding to a potential difference between each of the display electrodes and the counter electrode. The device also includes a common voltage supplying partthat detects a charge in a certain area Tof the counter electrodeand compares a feedback voltage corresponding to the detected charge in the area, thereby providing common voltage Vcom feedback control. Consequently, flickers on the screen can be prevented by common voltage Vcom feedback control.