Solid-state, color-balanced backlight with wide illumination range
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United States of America Patent
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Jul 7, 2009
Grant Date -
Jul 26, 2007
app pub date -
Jan 24, 2006
filing date -
Jan 24, 2006
priority date (Note) -
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Abstract
A color balanced solid-state backlight provides feedback control of each color using a single photodetector by imposing a modulation pattern on the solid-state lamps revealing individual colors to the photodetector. The photodetector signal provides feedback controlling color balance over a small range of instantaneous brightness less than larger range of average brightness of the display to provide for accurate color balance throughout a large range of average brightnesses.
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Cited Art Landscape
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