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. 07, 2008
Filed:
Jan. 21, 2005
Shigeyuki Nishitani, Yokohama, JP;
Takeshi Maeda, Yokosuka, JP;
Kazuyoshi Kawabe, Fujisawa, JP;
Hiroshi Kurihara, Mobara, JP;
Tetsuo Takagi, Yokohama, JP;
Toshiaki Ohashi, Fujisawa, JP;
Shigeyuki Nishitani, Yokohama, JP;
Takeshi Maeda, Yokosuka, JP;
Kazuyoshi Kawabe, Fujisawa, JP;
Hiroshi Kurihara, Mobara, JP;
Tetsuo Takagi, Yokohama, JP;
Toshiaki Ohashi, Fujisawa, JP;
Hitachi, Ltd., Tokyo, JP;
Hitachi Video and Information System, Inc., Kanagawa-ken, JP;
Hitachi Microsoftware Systems, Inc., Kanagawa-ken, JP;
Abstract
A liquid crystal display device for displaying video data having a detection circuit for detecting a luminance distribution based on video data which is inputted, the luminance distribution being indicative of generation frequency of gradations in each of divided region which includes a plurality of gradations. The display device includes a determination circuit for determining at least one of a plurality of divided regions of higher generation frequency of gradation than that of other divided regions based on the luminance distribution, a correction circuit for correcting the video data so as to make a luminance characteristic of the at least one of the plurality of divided regions of higher generation frequency of gradation more abrupt than a luminance characteristic of the other divided regions, and a liquid crystal display panel for displaying the corrected video data. A width of the divided region is changeable.