Polyimide angularity enhancement layer
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United States of America Patent
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May 12, 1998
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app pub date -
May 23, 1996
filing date -
May 23, 1996
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Abstract
An angularity enhancement layer in a liquid crystal display, which display comprises a liquid crystal cell, wherein the angularity enhancement layer includes a negative birefringent polyimide layer comprising a plurality of structural units having pendant fluorene groups, said angularity enhancement layer being disposed on at least one surface of said liquid crystal cell. A liquid crystal display can comprise an angularity enhancement construction of the invention which comprises a polyimide layer.
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