LCD displays with light redirection
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United States of America Patent
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Mar 24, 2009
Grant Date -
Nov 20, 2008
app pub date -
May 16, 2007
filing date -
May 16, 2007
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A backlight apparatus for directing light toward a display panel and the resulting display device comprises a solid lightguide comprising opposite TIR surfaces, containing a desired pattern of light redirecting surface features located between the TIR surfaces and interrupting one of the TIR surfaces, the features having a refractive index differing from that of the solid material of the light guide. Such an apparatus provides a more even light distribution to the display.
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