Backlighting light pipe for illuminating a flat-panel display
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United States of America Patent
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May 11, 2010
Grant Date -
Aug 24, 2006
app pub date -
Apr 14, 2006
filing date -
Dec 30, 1998
priority date (Note) -
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Abstract
A light pipe includes a light input end and a diffractive structure. The diffractive structure includes elongated formations having diffractive properties for coupling light out from the light pipe to provide backlighting of a flat-panel display. The elongated formations are curved, the curvature being dependent on the location of a light source at the light input end.
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