Patent ID: 8980401
Filing Date: 2015-03-17
Classification: C08G,G02B,Y10T

Abstract:
1. An optical member comprising: a plurality of layers formed on a surface of a substrate, wherein the plurality of layers includes layer having a textured structure comprising a crystal of aluminum oxide and layer having polyimide; and the polyimide includes a repeated structure represented by Formula (1) and a structure represented by Formula (2) in a main chain: wherein, R 1 represents a tetravalent organic group; and R 2 represents a divalent organic group, and wherein, R 3 represents a tetravalent organic group; R 4 represents a phenylene group or a C1 to C5 alkylene group; R 5 represents a hydrogen atom, a linear or branched alkyl group, or a phenyl group or represents a structure binding to the substrate or another polymer through —Si≡; R 6 represents a hydrogen atom, a linear or branched alkyl group, or a phenyl group; m represents 0 or 1; n represents 1 or 2; m and n satisfy 2m+2n=4; and x represents an integer of 1 to 3, wherein the molar quantity of the structure represented by Formula (2) contained in the polyimide is 0.002 to 0.05 based on 1 mole of the repeating unit represented by Formula (1) contained in the polyimide.