Patent ID: 7531223
Filing Date: 2009-05-12
Classification: C09K,G02B

Abstract:
1. An optical element, comprising: a transparent base material; an alignment property providing layer laminated on the transparent base material; and a refractive index anisotropic layer laminated on the alignment property providing layer and having an alignment property provided by an alignment limiting force of the alignment property providing layer, wherein the alignment property providing layer is made of an alignment layer comprising an alignment layer composition capable of expressing the alignment limiting force, the alignment layer composition comprises a polymer and a monomer or an oligomer having one or more functional groups, the refractive index anisotropic layer is made of a liquid crystal layer formed by curing a liquid crystal composition comprising a polymerizable liquid crystal material, in the alignment property providing layer and the refractive index anisotropic layer, the monomer or the oligomer in the alignment property providing layer and the polymerizable liquid crystal material in the refractive index anisotropic layer are crosslinked with each other near an interface between the layers, and the monomer or the oligomer is the polymerizable liquid crystal material.