Method and apparatus for an image presentation device with illumination control for black image processing
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United States of America Patent
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Issued Date -
Oct 12, 2006
app pub date -
Apr 7, 2005
filing date -
Apr 7, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An image presentation device (100) includes a microdisplay panel (150) and a set of light sources (122, 124, 126) operable to emit light of different colors. An optical structure (140) couples the set of the light sources (122, 124, 126) to the microdisplay panel (150). A controller (110) is responsive to the data obtained from an analysis of each image frame, to selectively and individually vary output intensity for the light sources (122, 124, 126) to achieve a particular illumination level and corresponding ratio for processed images.
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