METHOD OF PRODUCING ORIENTED LIQUID CRYSTAL LAYER Russian patent published in 2013 - IPC G02F1/133 G02F1/1337 

FIELD: chemistry.

SUBSTANCE: before depositing a liquid crystal layer, the porous structure of a layer of a metal oxide substrate is modified by depositing onto its surface a liquid isotropic solution of a dichroic substance, followed by evaporation of the solvent from said liquid solution to form on the surface and inside the porous layer of metal oxide a layer of a solid-state dichroic substance, thermally treating said porous layer, treating the obtained layer with a solvent without the dichroic substance to obtain a monomolecular layer of dichroic substance on the surface and inside the pores of the metal oxide. The layer of dichroic substance is then heated to evaporate residual solvent from the porous structure and the obtained monomolecular layer of dichroic substance is irradiated with activating optical radiation which is absorbed by the dichroic substance to provide the given orientation of anisotropic molecules in the monomolecular layer of dichroic substance. The substrate with the irradiated monomolecular layer of dichroic substance is further heated and liquid crystal material is then deposited on the obtained surface of the monomolecular layer of dichroic substance to form an oriented liquid crystal layer.

EFFECT: use of the present method enables to obtain an oriented liquid crystal layer with a given direction of orientation of the liquid crystal, including a uniform planar orientation with a given direction.

11 cl, 2 dwg, 4 ex