Process of aligning and realigning liquid crystal media

Details Process of aligning and realigning liquid crystal media Process of aligning and realigning liquid crystal media

1989-03-08

1990-12-04

Miller, Stanley D.

350341, 350350S, 350351, G02F 113

Patent

active

049749412

ABSTRACT:
A process of aligning or realigning a liquid crystal medium adjacent to a coated or uncoated substrate comprising exposing anisotropically absorbing molecules to linearly polarized light of a wavelength or wavelengths within the absorption band of the anisotropically absorbing molecules, wherein (a) the exposed anisotropically absorbing molecules induce alignment of the liquid crystal medium at an angle + and -.theta. with respect to the direction of the linear polarization of the incident light beam and along a surface of the liquid crystal medium and (b) the liquid crystal medium comprises liquid crystals having a molecular weight of less than 1500, and liquid crystal cells and devices prepared by this process, are disclosed.

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