Materials for inducing alignment of liquid crystals and liquid crystal optical elements
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United States of America Patent
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Jan 31, 2006
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app pub date -
Oct 15, 2002
filing date -
Dec 23, 1998
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Abstract
The present invention provides novel polyamic acids and polyimide optical alignment layers for inducing alignment of a liquid crystal medium. The novel compositions comprise crosslinking diamines containing a C3-C22 linear or branched hydrocarbon chains containing 1 to 4 carbon—carbon double bonds. The invention further describes liquid crystal displays comprising the novel polyimide optical alignment layers.
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