Polarizing plate
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United States of America Patent
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Mar 2, 2010
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app pub date -
Apr 25, 2006
filing date -
Apr 26, 2005
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Abstract
A polarizing plate comprising (a) a layer composed of a plurality of polyvinyl alcohol fibers adsorbing a dichroic pigment and having an aspect ratio of 10 or more, which are arranged in a planar form in one direction, or the above layer (a) and (b) a layer composed of a plurality of fibers having an aspect ratio of 10 or more and a difference between the refractive index of fiber in long axis and the refractive index of fiber in short axis of 0.05 or more and not adsorbing a dichroic pigment, which are arranged in a planar form in one direction, and/or (b′) a plurality of fibers having an aspect ratio of 10 or more and a difference between the refractive index of fiber in long axis and the refractive index of fiber in short axis of less than 0.05 and not adsorbing a dichroic pigment, which are arranged in a planar form in one direction, and (c) an optically transparent resin.,
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