Method of making a phase difference film
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United States of America Patent
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Jun 30, 2015
Grant Date -
Dec 26, 2013
app pub date -
Feb 15, 2013
filing date -
Jun 26, 2012
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Abstract
A method of making a phase difference film includes: (a) providing a substrate having a first surface provided with a light-shielding layer and a second surface provided with an orientable layer; (b) providing a first linear polarized UV light to irradiate the orientable layer and providing a second linear polarized UV light to irradiate the orientable layer so as to form the orientable layer into an alignment layer having first and second regions that are photo-oriented in two different orientation directions, respectively; and (c) coating a liquid crystal material on the alignment layer and curing the liquid crystal material.
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