Patent ID: 6449024
Filing Date: 2002-09-10
Classification: G02F

Abstract:
A liquid crystal electro-optical device comprising at least one transparent substrate, a liquid crystal layer comprising a polymer material containing a liquid crystal material dispersed therein, and means for applying an electric field in the direction parallel to the substrate,wherein at least a part of said liquid crystal material has major axes aligned in a predetermined direction in parallel or approximately in parallel with the substrate under an applied electric field, wherein the refractive index of the polymer material in said predetermined direction approximately corresponds to that of the major axis direction of the liquid crystal material under the applied electric field, wherein the refractive index of the polymer material in a direction perpendicular to said predetermined direction approximately corresponds to that of the minor axis direction of the liquid crystal material under the applied electric field, wherein the polymer material has an anisotropy in refractive index, and wherein the means for applying an electric field has an effective plane in the direction perpendicular or approximately perpendicular to the substrate.