Backlight apparatus for illuminating a display with controlled light output characteristics
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United States of America Patent
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Jun 6, 2000
Issued Date -
N/A
app pub date -
Jan 13, 1997
filing date -
Feb 14, 1996
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Systems and methods for providing an LCD backlight are described. An LCD backlight system includes: a beam bending and viewing film including a first side including a surface diffuser and a second side including a plurality of substantially parallel optical elements, each of the plurality of substantially parallel optical elements including a first facet that includes a refractive surface and a second facet that includes a total internal reflection surface. The systems and methods provide advantages in that light from the LCD backlight is bright and homogenous.
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