Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2005-01-21
2008-10-07
Hjerpe, Richard (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S088000, C345S089000, C345S204000
Reexamination Certificate
active
07432897
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.
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“changing the Maximum Brightness in Accordance with the Screen”, Nikkei Electronics, Nov. 1999, No. 757, pp. 139-146.
Kawabe Kazuyoshi
Kurihara Hiroshi
Maeda Takeshi
Nishitani Shigeyuki
Ohashi Toshiaki
Antonelli, Terry Stout & Kraus, LLP.
Hitachi , Ltd.
Hitachi Microsoftware Systems, Inc.
Hitachi Video and Information System Inc.
Hjerpe Richard
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