OPTICAL FILM, POLARIZING PLATE, AND IMAGE DISPLAY DEVICE
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United States of America Patent
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Aug 27, 2020
app pub date -
May 11, 2020
filing date -
Jun 3, 2015
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Abstract
The present invention is to provide an optical film having optically anisotropic layer having excellent durability, and a polarizing plate and an image display device using the same. An optical film of the present invention is an optical film having at least an optically anisotropic layer, in which the optically anisotropic layer is a layer obtained by polymerizing a polymerizable liquid crystal composition containing a predetermined liquid crystal compound and a polymerization initiator, and an extrapolated glass transition starting temperature of the optically anisotropic layer is 70° C. or higher.
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