Method and apparatus for power control in a display device
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United States of America Patent
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Jul 19, 2011
Grant Date -
May 10, 2007
app pub date -
Nov 7, 2006
filing date -
Nov 10, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
The invention relates to a new method for power level control of a display device and an apparatus for carrying out the method. Classically, the contrast/brightness control and the power management (based on an average power level control) are made independently. These two controls can be contradictory. According to the invention, the power level mode and more particularly the number of sustain pulses within the video frame is selected as a function of the average power level (APL) of the picture to be displayed and the picture control signal representing the desired contrast and/or brightness value.
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