Patent ID: 8125591

Claim:
A method of forming an array of polymer dispersed liquid crystal cells, said array comprising at least two polymer dispersed liquid crystal cells of a first and second type, respectively, at least one of which, is dye doped, wherein each of said polymer dispersed liquid crystal cells comprises a porous polymer matrix having pores or voids, which are filled with a liquid crystal of a first and second type, respectively, at least one of which, is dye doped, said method comprising the following steps: a) forming said porous polymer matrix in the presence of a liquid crystalline material, such that said liquid crystalline material is dispersed in said pores of said porous polymer matrix, b) replacing said liquid crystalline material in said porous polymer matrix by said liquid crystal of a first or second type, c) arranging said polymer dispersed liquid crystal cells of a first and second type, respectively, in a pattern of parallel lines, in a mosaic pattern of dots, or in a stacked structure of layers, wherein said polymer dispersed liquid crystal cells of a first and second type are in different layers on top of each other in the stacked structure.