Materials for inducing alignment in liquid crystals and liquid crystal displays
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United States of America Patent
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Mar 30, 2004
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N/A
app pub date -
Dec 19, 2000
filing date -
Oct 22, 1999
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Abstract
The present invention provides novel polyimides, poly(amic acids) and poly(amide esters) thereof, and optical alignment layers derived therefrom, for inducing alignment of liquid crystals and liquid crystal displays. The novel compositions comprise side-chain polymers of the 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. The invention further describes liquid crystal displays and other liquid crystal devices.
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