Optical film
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United States of America Patent
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Issued Date -
Dec 18, 2008
app pub date -
Sep 5, 2007
filing date -
Jun 14, 2007
priority date (Note) -
Abandoned
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Abstract
An optical film including brightness enhancing, diffusion, and splitting layers; multiple optical microstructures being disposed on an upper surface of the brightness enhancing layer; the diffusion layer containing multiple diffusion grains; streams of light upon entering into the optical film delivering diffusion effect through the diffusion layer and provided with different traveling routes through the beam splitting layer to upgrade operation efficiency, create brightness enhancing effect through the brightness enhancing layer, and meet compact design requirements when applied in a backlight unit.
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