OPTICAL FILM AND INFORMATION TECHNOLOGY APPARATUS COMPRISING THE SAME
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United States of America Patent
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app pub date -
Aug 17, 2010
filing date -
Apr 30, 2008
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Abandoned
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Abstract
The present invention relates to an optical film comprising an aromatic based unit having chain having the hydroxy group containing portion and aromatic moiety; and a styrene-based unit comprising one or more styrene-based derivatives, and has absolute values of in-plane retardation (R.sub.in) and thickness retardation (R.sub.th) of 10 nm or less regardless of stretching, and a polarizing plate and an information technology apparatus including the same.
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