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DISPLAY DEVICE, BRIGHTNESS ADJUSTMENT DEVICE, BACKLIGHT DEVICE, METHOD OF ADJUSTING BRIGHTNESS, AND PROGRAM

  • US 20110205442A1
  • Filed: 12/09/2009
  • Published: 08/25/2011
  • Est. Priority Date: 12/11/2008
  • Status: Active Grant
First Claim
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1. A display device, comprising:

  • a table calculation unit that calculates a table representing a relationship between an average brightness and a gain of a video signal;

    a table revision unit that revises the table in order to reduce a change amount of a gain of each frame in the table;

    an average brightness calculation unit that calculates an average brightness of a video signal input for each frame;

    a gain calculation unit that calculates a gain of a video signal from the table based on the average brightness calculated by the average brightness calculation unit;

    a video signal adjustment unit that adjusts a video signal using the gain calculated by the gain calculation unit; and

    a display panel that includes a plurality of pixels that emit light in response to a video signal and displays a video based on a video signal adjusted by the video signal adjustment unit.

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