Color display liquid crystal composition

Details Color display liquid crystal composition Color display liquid crystal composition

1982-09-30

1984-10-16

Gron, Teddy S.

Compositions

Liquid crystal compositions

Containing pleochroic dye

350349, 350346, C09K 334, G02F 113

Patent

active

044773684

ABSTRACT:
A color display liquid crystal composition comprising a nematic liquid crystal having positive dielectric anisotropy, an optically active substance and a dichroic dye mixture consisting of a dichroic reddish purple diazo dye (1,4-naphthylene derivative) and a dichroic red diazo dye (1,4-phenylene derivative). This composition is suitable for use in a guest-host type color liquid crystal display device.

REFERENCES:
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patent: 4273929 (1981-06-01), Boller et al.
patent: 4395350 (1983-07-01), Boller et al.
Seki, H., et al., Jpn. J. Appl. Phys., vol. 21, No. 1, pp. 191-192, (1982).
Seki, H., et al., Jpn. J. Appl. Phys., vol. 19, No. 8, pp. L501-L503, (1980).
Seki, H., et al., "Light-Stability of Guest-Host Cells", Abst. L-1P, Abstracts of the 8th Intern'l L.C. Conf., (1980).
Bloom, A., et al., Mol. Cryst. Liq. Cryst., vol. 40, pp. 213-221, (1977).
Bloom, A., et al., Mol. Cryst. Liq. Cryst., vol. 41(Lett.), pp. 1-4, (1977).
Cox, R. J., Mol. Cryst. Liq. Cryst., vol. 55, pp. 1-32, (1979).
Cognaro, J., et al., Mol. Cryst. Liq. Cryst., vol. 68, pp. 207-229, (1981).

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