Optical film, polarizing plate, and image display device
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United States of America Patent
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Jun 23, 2020
Grant Date -
Mar 22, 2018
app pub date -
Nov 29, 2017
filing date -
Jun 3, 2015
priority date (Note) -
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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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