Mixed liquid crystalline texture formation

Details Mixed liquid crystalline texture formation Mixed liquid crystalline texture formation

1977-03-02

1978-06-27

Bauer, Edward S.

350346, G02F 113

Patent

active

040971279

ABSTRACT:
A mixture of the Grandjean texture and the focal-conic texture of the cholesteric mesophase is created by applying an electrical field to a liquid crystalline material in either the focal-conic or Grandjean texture of the cholesteric mesophase of a magnitude sufficient to transform the liquid crystalline material from the cholesteric mesophase to the nematic mesophase; and, decreasing the magnitude of said electrical field over a period of time effective to transform the liquid crystalline material from the nematic mesophase to a mixture of the Grandjean and focal-conic textures of the cholesteric mesophase.

REFERENCES:
patent: 3642348 (1972-02-01), Wysocki et al.
patent: 3652148 (1972-03-01), Wysocki et al.
patent: 3680950 (1972-08-01), Haas et al.
patent: 3703331 (1972-11-01), Goldmacher et al.
patent: 3781088 (1973-12-01), Tsukamoto et al.
patent: 3790251 (1974-02-01), Wysocki et al.
patent: 3792915 (1974-02-01), Oh et al.
patent: 3806230 (1974-04-01), Haas
patent: 3960439 (1976-06-01), Becker et al.
patent: 3972588 (1976-08-01), Adams et al.

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