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Image display device capable of supporting brightness enhancement and power control and method thereof

  • US 8,625,894 B2
  • Filed: 03/12/2012
  • Issued: 01/07/2014
  • Est. Priority Date: 08/26/2005
  • Status: Active Grant
First Claim
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1. A method of displaying an image, comprising:

  • receiving an input image;

    receiving a power decrease ratio from a user;

    calculating a brightness of an output image corresponding to the input image, which can offset a luminance decrease ratio decreased depending on the power decrease ratio;

    controlling the size of each component of a pixel constituting the input image in accordance with the calculated brightness of the output image; and

    displaying the output image of the pixel whose component size has been controlled, based on a light source driven by a power decreased by the power decrease ratio,wherein the calculating the brightness includes;

    obtaining a difference between a luminance value corresponding an initial power and a luminance value corresponding to the power decreased from the initial power by the power decrease ratio; and

    calculating a brightness of the output image to make the difference equal to a difference between a luminance value corresponding to the brightness of the input image and a luminance value corresponding to the brightness of the output image.

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