Electro-optical device

Details Electro-optical device Electro-optical device

1975-03-17

1977-04-05

Padgett, Benjamin R.

Compositions

Liquid crystal compositions

252408, 350160LC, 260143, G02F 116, C09K 334, G02F 113

Patent

active

040160947

ABSTRACT:
An electro-optical device using a liquid crystal consisting of 99.9 to 30 wt.% of at least one nematic liquid crystal and 0.1 to 70 wt. % of at least one optically active liquid crystal compound, (+)-p-alkoxy-p'-(2-methylbutyl)azoxybenzene. Such a device has a better display performance than similar devices because the mixture has a threshold voltage and a rapid response to an electric signal applied to the device, and so it is very practical for a matrix display device.

REFERENCES:
patent: 3650603 (1972-03-01), Heilmeier et al.
patent: 3703331 (1972-11-01), Goldmacher et al.
patent: 3773747 (1973-11-01), Steinstrasser
patent: 3776615 (1973-12-01), Tsukamoto et al.
patent: 3779751 (1973-12-01), Haas et al.
patent: 3781088 (1973-12-01), Tsukamoto et al.
patent: 3792915 (1974-02-01), Oh et al.
patent: 3806230 (1974-04-01), Haas
patent: 3819531 (1974-06-01), Sheva et al.
patent: 3833287 (1974-09-01), Taylor et al.
patent: 3891307 (1975-06-01), Tsukamoto et al.
Gray, G. W., et al., Liquid Crystals & Plastic Crystals, Vol. 1, Ellis Horwood Ltd., London, pp. 170-171 (Jan. 1974).
Gray, G. W., et al., Electronics Letters, Vol. 9, No. 26, pp. 616-617 (1973).

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