Method of controlling orientation of liquid crystal, device used

Details Method of controlling orientation of liquid crystal, device used Method of controlling orientation of liquid crystal, device used

1984-11-15

1988-11-01

Corbin, John K.

350336, 350339R, 350344, 350351, G02F 1135

Patent

active

047814411

ABSTRACT:
Orientation of a liquid crystal is controlled by first forming a phase boundary of the liquid crystal between a monoaxially anisotropic phase where the liquid crystal molecules are aligned in one direction and a higher temperature phase between a pair of base plates, transforming a part of the higher temperature phase adjacent to the phase boundary under cooling into the monoaxially anisotropic phase where liquid crystal molecules are aligned in parallel with the liquid crystal molecules in the already formed monoaxially anisotropic phase, and successively causing the phase transformation in the direction perpendicular to the phase boundary.

REFERENCES:
patent: 3964158 (1976-06-01), Janning
patent: 4219255 (1980-08-01), Raynes
patent: 4240712 (1980-12-01), Thirant
patent: 4390245 (1983-06-01), Shimizu et al.
patent: 4561726 (1985-12-01), Goodby et al.
Kondo et al., "A Practical Method of Preparing Thin Homogeneous Ferroelectric Smectic Cells," Japanese Journal of Applied Physics, vol. 22, No. 2, Feb. 1983, pp. L85-L87.
Clark, Lagerwall and Wahl, "Modulators, Linear Arrays, and Matrix Arrays using Ferroelectric Liquid Crystals," Proceedings of the SID, vol. 26, No. 2, 1985, pp. 133-139.
Ostrovskii et al., "Ferroelectric Properties of Smectic Liquid Crystals," JETP Letters, vol. 25, No. 2, 1977, pp. 70-72.

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