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DYNAMIC BACKLIGHT ADAPTATION WITH REDUCED FLICKER

  • US 20090002311A1
  • Filed: 06/24/2008
  • Published: 01/01/2009
  • Est. Priority Date: 06/26/2007
  • Status: Active Grant
First Claim
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1. A system, comprising one or more integrated circuits, wherein the one or more integrated circuits include:

  • an input interface configured to receive video signals associated with a video image;

    an extraction circuit electrically coupled to the input interface, the extraction circuit operative to calculate a brightness metric associated with the video image based on the received video signals;

    an analysis circuit electrically coupled to the extraction circuit, the analysis circuit configured to analyze the brightness metric to identify a first subset of the video image and a second subset of the video image, wherein the first subset of the video image includes spatially varying visual information in the video image and the second subset of the video image includes the remainder of the video image;

    an adjustment circuit electrically coupled to the analysis circuit, the adjustment circuit configured to adjust a brightness of the second subset of the video image, wherein a new brightness of the second subset of the video image provides headroom to attenuate noise associated with displaying the second subset of the video image; and

    an output interface electrically coupled to the adjustment circuit, the output interface configured to output modified video signals, andwherein the modified video signals include the new brightness of the second subset of the video image.

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