Uniform curved surface structure of a brightness unit for a brightness enhancement film
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United States of America Patent
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Jul 6, 2004
Grant Date -
N/A
app pub date -
May 6, 2003
filing date -
Mar 24, 2003
priority date (Note) -
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Abstract
A brightness enhancement film includes a top surface, a bottom surface and a plurality of brightness units arranged to form an array on the top surface. The brightness unit is consisted of a first cured surface and a second curved surface. Each of the first cured surface and the second curved surface is extended downward to terminate at a curved bottom edge so as to form a uniform curvature of the curved surface.
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