METHODS OF FABRICATING LIQUID CRYSTAL POLARIZATION GRATINGS ON SUBSTRATES AND RELATED DEVICES

摘要

PROBLEM TO BE SOLVED: To provide a method of fabricating a switchable liquid crystal polarization grating on a reflective substrate and a related device.SOLUTION: A method of fabricating the switchable liquid crystal polarization grating including a step of fabricating a degenerate planar anchoring condition 120 on a reflective substrate 110 is configured to: form an alignment layer on a transmissive substrate 105; pattern the alignment layer and fabricate a periodic alignment condition on the alignment layer; combine the transmissive substrate having the patterned alignment layer adjacent to a surface of the reflective substrate including the degenerate planar anchoring condition and form a gap between the transmissive substrate and the reflective substrate; form a liquid crystal layer 125 on the surface of the reflective substrate including the degenerate planar anchoring condition; and form the liquid crystal layer in the gap positioned directly on the alignment layer such that a molecule of the liquid crystal layer is oriented on the basis of the periodic alignment condition of the alignment layer. Related fabricating methods and polarization gratings are also disclosed.