Back-light assembly
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United States of America Patent
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Jan 3, 2012
Grant Date -
Apr 30, 2009
app pub date -
Oct 30, 2007
filing date -
Oct 30, 2007
priority date (Note) -
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Abstract
A back-light assembly for uniformly illuminating large area displays. The back-light assembly includes a uniformly thin waveguide, a reflector and a plurality of light sources evenly distributed along the display area between the waveguide and the reflector. Prismatic facets are provided along the lower surface of the waveguide for effectively coupling light emitted from light sources into the waveguide.
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