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DISPLAY DEVICE, DISPLAY DRIVER AND IMAGE DISPLAY METHOD

  • US 20130044146A1
  • Filed: 10/09/2012
  • Published: 02/21/2013
  • Est. Priority Date: 04/24/2007
  • Status: Abandoned Application
First Claim
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1. A drive circuit of an image display device for displaying an image by irradiating a backlight on a display screen, the drive circuit comprising:

  • a backlight control unit which includes;

    a histogram counting unit for acquiring a histogram by counting display data in units of frame of one or plural images and calculating a value of the display data at a specific upper position of the histogram;

    a display data extension unit for extending each display data based on the value of the display data at the specific position; and

    a backlight adjustment unit for adjusting a light emission amount of the backlight based on the value of the display data at the specific position,wherein the histogram counting unit includes a weighting coefficient calculating unit for outputting a weighting coefficient corresponding to a display position of each display data on the display screen, and counts the display data while adding the weighting coefficient to each display data, thereby acquiring the histogram.

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