Optical film, manufacturing method thereof, and display device including the same
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United States of America Patent
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Feb 13, 2018
Grant Date -
Jun 4, 2015
app pub date -
Apr 27, 2014
filing date -
Dec 2, 2013
priority date (Note) -
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Abstract
An optical film including a polarization layer, a first phase delay layer positioned on a side of the polarization layer and including a liquid crystal, and a second phase delay layer positioned on a side of the first phase delay layer, where the first phase delay layer has an optical axis defining an angle of about 17 degrees to about 27 degrees or about −27 degrees to about −17 degrees relative to a transmissive axis of the polarization layer, and the second phase delay layer has an optical axis defining an angle of about 85 degrees to about 95 degrees relative to the transmissive axis of the polarization layer.
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