Patent ID: 7190427
Filing Date: 2007-03-13
Classification: G02B,G02F

Abstract:
1. A reflective plate, comprising: a substrate; a cholesteric liquid crystal layer formed over the substrate, the cholesteric liquid crystal layer including a polymerized cholesteric liquid crystal monomer with cholesteric liquid crystal molecules in a fixed alignment state, the cholesteric liquid crystal molecules each having a helical axis, the helical axes of the cholesteric liquid crystal molecules being aligned in different directions at least in a plane of said substrate; and an alignment layer formed locally between the substrate and the cholesteric liquid crystal layer so that regions where the alignment layer is not formed are located between regions where the alignment layer is formed, the helical axes of the cholesteric liquid crystal molecules adjacent to regions where the alignment layer is formed being aligned in one direction and the helical axes of the cholesteric liquid crystal molecules adjacent to regions where the alignment layer is not formed being aligned in another direction different from the one direction.