Materials for inducing alignment in liquid crystals and liquid crystal displays
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United States of America Patent
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Apr 30, 2002
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N/A
app pub date -
Dec 20, 2000
filing date -
Oct 22, 1999
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Abstract
The present invention provides novel aromatic diamines useful in preparing polyimides for optical alignment layers in liquid crystal displays. The novel compositions comprise side-chains general formula I --L.sub.1 --D--L.sub.2 --C.sub.f wherein D comprises 1 to 4 carbon-carbon double bonds, C.sub.f is a monovalent C.sub.4 to C.sub.20 fluorocarbon radical and L.sub.1 and L.sub.2 are linking groups.
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