Prevention of groove tip deformation in brightness enhancement film
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United States of America Patent
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May 6, 1997
Grant Date -
N/A
app pub date -
Feb 3, 1995
filing date -
Feb 3, 1995
priority date (Note) -
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Abstract
A method of producing a microstructure bearing article that includes the steps of molding the microstructure on the base, curing the resin that forms the microstructure, and heat treating the microstructure. The heat treating is performed at a temperature that is at least equal to a normal glass transition temperature of the resin. The heat treating raises the glass transition temperature of the resulting polymer above approximately 333.degree. K. such that groove tip impression is reduced. Such articles are useful in backlit displays which are useful in computers and the like.
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