TRANSPARENT SHEET, TRANSPARENT SCREEN COMPRISING SAME, AND IMAGE PROJECTION DEVICE COMPRISING SAME
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United States of America Patent
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Issued Date -
Sep 13, 2018
app pub date -
Dec 4, 2015
filing date -
Dec 4, 2015
priority date (Note) -
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Abstract
Provided is a transparent sheet which can clearly display merchandise information, advertisement, or the like on a transparent partition or the like by projection without compromising the transmission visibility and which have a wide viewing angle. The transparent sheet includes an optical diffusion layer comprising: a resin having a refractive index n1; and microparticles having a refractive index n2 different from the refractive index n1, wherein the thickness of the optical diffusion layer is from over 400 μm to 20 mm or less.
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