DIFFUSION FILM AND PREPARATION PROCESS THEREOF
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United States of America Patent
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Issued Date -
Jun 23, 2011
app pub date -
Dec 10, 2010
filing date -
Dec 18, 2009
priority date (Note) -
Abandoned
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Abstract
The present invention relates to a diffusion film comprising a substrate with a convex-concave microstructure layer on at least one side of the substrate wherein the diffusion film has a haze of no less than 5% and a total light transmittance of no less than 50% as measured according to JIS K7136 standard method and the convex-concave microstructure layer is formed by utilizing a coating composition comprising a polymer which is composed of a material that is the same as or similar to that of the main component of the substrate and a material that is incompatible with said polymer and applying said coating composition onto said substrate.
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