PA11 Topographical Effect on the Alignment of Liquid Crystal by Surface Relief Grating

Abstract

The alignment characteristics of nematic liquid crystal (NLC) using surface relief grating (SRG) structure has been investigated. The photo-induced SRG on azo-polymer was transferred onto the transparent photopolymer, and used as alignment substrates. Using one-dimensional (1-D) SRG, a homogeneous alignment of NLC was obtained. On the other hand, in the case of 2-D SRG, a homeotropic alignment of NLC was observed.