BRIGHTNESS ENHANCEMENT FILM USING LIGHT CONCENTRATOR ARRAY
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United States of America Patent
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app pub date -
Oct 20, 2006
filing date -
Feb 24, 2004
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Abandoned
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Abstract
A brightness enhancement film comprises an array of tapered structures, each said tapered structure having a light input aperture and a larger light output aperture. The inner side-wall of each said tapered structure is adapted to reflect off-axis light from the light guiding plate incident at said input aperture to said output aperture.
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