COMPOSITE RETARDATION PLATE, COMPOSITE POLARIZING PLATE COMPRISING THE SAME AND PREPARATION METHODS FOR THOSE
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United States of America Patent
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Issued Date -
Oct 11, 2012
app pub date -
Apr 8, 2012
filing date -
Apr 11, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Disclosed are a composite retardation plate, a composite polarizing plate including the same and a method for manufacturing the same. More particularly, a composite retardation plate is prepared by corona or plasma treatment of a face of a liquid crystal coating layer formed on a polymeric base film to improve adhesion therebetween and then directly providing a surface treatment coating layer above the coated film, thus being produced by a simple process without using a glass material while requiring neither an additional base material nor adhesive layer. Therefore, the retardation plate prepared as described above is desirably used as a retarder for a thin-film type display. The present invention also provides a composite polarizing plate including the above retardation plate and a method for manufacturing the foregoing.
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