Liquid crystal mixture and its application to optical modulation

Details Liquid crystal mixture and its application to optical modulation Liquid crystal mixture and its application to optical modulation

1978-03-17

1980-09-16

Bauer, Edward S.

Compositions

Radioactive compositions

Nuclear reactor fuel

252299, G02F 113

Patent

active

042226368

ABSTRACT:
The present invention relates to a liquid crystal mixture exhibiting a very short turn-on time of electrically controlled optical phenomena, such as the variation in double-refraction. Said mixture comprises two liquid crystal elements having dielectric anisotropy values chosen to be almost the same but of opposite sign; the value of the resultant dielectric anisotropy is very small.

REFERENCES:
patent: 3700306 (1972-10-01), Cartmell et al.
patent: 3815972 (1974-06-01), Hsieh
patent: 3918796 (1975-11-01), Fergason
de Jeu et al.: "Electrohydrodynamic Instabilities in Some Nematic Azoxy Compounds with Dielectric Anisotropies of Different Sign", Journal of Chemical Physics, vol. 56, pp. 4752-4755, May 15, 1972.

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