POLYMER FOR LIQUID CRYSTAL ALIGNING AND LIQUID CRYSTAL DISPLAY USING THE SAME

摘要

A copolymer for liquid crystal aligning and a liquid crystal display using the same are provided to show excellent optical and thermal stability while maintaining superiority in the alignment state of a liquid crystal, and to exhibit no afterimage. The copolymer for liquid crystal aligning is represented by the formula(2), and comprises a photo-reactive group and a symmetrical mesogen group in which the center of gravity is linked to a back-bone of the polymer. In the formula(2), Z is polyimide, polysiloxane, or a cyclic or non-cyclic polymer back-bone comprised of hydrogen and at least one selected from carbon, oxygen and nitrogen, S3 and S4 are a spacer, P2 is a photo-reactive group, M2 is a symmetrical mesogen group, wherein the center of gravity is linked to the back-bone of the polymer, p and q represent a molar fraction of a monomer, 0<p<1 and 0<q<1, and n is a repeating unit, and 10<n<10,000.