Backlight with structured surfaces
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United States of America Patent
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Jan 18, 2011
Issued Date -
N/A
app pub date -
Sep 14, 2005
filing date -
Oct 8, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A backlight includes a lightguide, a light source disposed with respect to the lightguide to introduce light into the lightguide and a turning film. Optical structures are formed in one of an output surface and a back surface of the lightguide. The optical structures are arranged to extract light from the lightguide. A back reflector is disposed adjacent the back surface. The optical structures are formed to include a varying pattern arranged to mask non-uniformities in the output of the lightguide.
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Cited Art Landscape
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