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Liquid crystal display device for displaying video data

  • US 7,432,897 B2
  • Filed: 01/21/2005
  • Issued: 10/07/2008
  • Est. Priority Date: 03/27/2000
  • Status: Expired due to Term
First Claim
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1. A liquid crystal display device for displaying video data, comprising:

  • 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 regions which include a plurality of gradations;

    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 a plurality of divided regions of higher generation frequency of gradation more abrupt than a luminance characteristic of other divided regions; and

    a liquid crystal display panel for displaying the corrected video data;

    wherein a width of the divided region is changeable.

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