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VIDEO DISPLAY DEVICE

  • US 20110285764A1
  • Filed: 04/22/2011
  • Published: 11/24/2011
  • Est. Priority Date: 05/20/2010
  • Status: Abandoned Application
First Claim
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1. A video display device having a liquid crystal panel, and a backlight with a plurality of backlight blocks horizontally and vertically arranged for projecting light onto the liquid crystal panel, capable of controlling the intensity of light for each of the backlight blocks, comprising:

  • a receiving portion which receives a video signal to be displayed on the liquid crystal panel;

    a scaler which performs a processing to change the size and/or position in a horizontal and/or vertical direction of the video signal received by the receiving portion;

    a backlight controller which controls the intensity of light for each of the backlight blocks based on the video signal; and

    a display controller which controls operation of the scaler,wherein the display controller controls the scaler to change the size and/or position in the horizontal and/or vertical direction of the video signal so as to nearly align a boundary between a video portion and a blank portion included in the video signal with a boundary between the backlight blocks, andwherein the backlight controller performs control to reduce the intensity of light of the backlight blocks in a position corresponding to the blank portion.

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