Patent ID: 6723393
Filing Date: 2004-04-20
Classification: C09K,G02F

Abstract:
A method comprisingsandwiching a mixture that comprises a liquid crystal and an uncured curable compound between a pair of substrates, and curing the uncured curable compound to form a liquid crystal/cured composite layer, wherein the liquid crystal has a negative dielectric anisotropy, the mixture is free of a chiral agent, the substrates have transparent electrodes, at least one substrate is transparent, and the uncured curable compound comprises a compound of formula (1): A1â€”(OR1)nâ€”Oâ€”Zâ€”Oâ€”(R2O)mâ€”A2â€ƒâ€ƒ(1), wherein each of A1 and A2, independently of each other, is an acryloyl group, a methacryloyl group, a glycidyl group or an allyl group; each of R1 and R2, independently of each other, is a C2-6 alkylene group; Z is a bivalent mesogen structure; and each of n and m, independently of each other, is an integer of from 1 to 10.