Method for Obtaining Brighter Images from an LED Projector
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United States of America Patent
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Issued Date -
Aug 30, 2012
app pub date -
Feb 28, 2011
filing date -
Feb 28, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method for improving brightness of projected images from an LED projector employing a plurality of LEDs of different colors by determining, from a histogram of a frame of an image to be projected, an effective maximum saturation. A plurality of main channels and a plurality of subchannels are created, one main channel and at least one subchannel for each color LED. Then the amplitude of the main channel and a subchannel for each color are determined based upon the effective maximum saturation of the frame of the image, followed by using the main channel and the at least one subchannel for a color to drive an LED of that color to generate the image.
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