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Backlight dimming and LCD amplitude boost

  • US 8,059,086 B1
  • Filed: 12/14/2007
  • Issued: 11/15/2011
  • Est. Priority Date: 12/11/2002
  • Status: Active Grant
First Claim
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1. A method for reducing power consumption of a display, the method comprising:

  • determining a first maximum pixel brightness value for a first frame of pixels by examining individual pixel values of the first frame;

    calculating a first scale factor as a function of the first maximum pixel brightness value for the first frame;

    dimming backlighting of the display by the first scale factor after sending the first frame of pixels to the display;

    receiving a second frame of pixels to be displayed on the display subsequent to the first frame of pixels;

    calculating a second scale factor based on the first maximum pixel brightness value for the first frame; and

    increasing brightness values of the pixels of the second frame of pixels by the second scale factor to generate boosted pixel values for the second frame; and

    sending the boosted pixel values to the display.

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