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Display device

  • US 9,293,088 B2
  • Filed: 10/08/2009
  • Issued: 03/22/2016
  • Est. Priority Date: 10/24/2008
  • Status: Active Grant
First Claim
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1. A display device comprising:

  • a backlight including a plurality of regions whose brightness can be individually controlled;

    a pixel portion including a plurality of pixels provided in the plurality of regions in the backlight;

    a control unit for comparing pieces of image data in a plurality of frame periods with each other so as to determine a moving image portion and a still image portion in the plurality of frame periods and for determining light-emission luminance of each of the plurality of regions in the backlight; and

    a backlight controller for making the plurality of regions included in the backlight emit light in accordance with a signal from the control unit,wherein the backlight controller controls light-emission luminance of each of the regions in the backlight corresponding to the moving image portion in a different manner from that corresponding to the still image portion so that a duty ratio of light-emission luminance of a region in the backlight corresponding to the moving image portion is configured to be 100% throughout the entirety of each frame period of the plurality of frame periods in order to be constant in the plurality of frame periods.

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