Liquid crystal display device

摘要

A liquid crystal display device comprising an alignment film having a high capacity of orienting liquid crystal using a polyester which is stable for a long period of time even under a high humidity condition. The liquid crystal display device is characterized by using a polyester having one of the following repeating unit | and the repeating unit PARALLEL or both: <IMAGE> (I) <IMAGE> (II) wherein Ar1 to Ar3 are substituted or unsubstituted aromatic rings, R1 to R6 are halogen-substituted alkyl groups, and X1, X2, Y1 and Y2 are -O- or