Compositions – Liquid crystal compositions
Patent
1977-06-02
1978-12-05
Padgett, Benjamin R.
Compositions
Liquid crystal compositions
252408, 350349, 350350, 260144, 260154, 260156, 260169, 260184, 260186, C09K 334, G02F 113
Patent
active
041284976
ABSTRACT:
Dichroic liquid crystal compositions for use in displays are mixtures of a liquid crystal host material and at least one of a plurality of dyes each having a plurality of azo (--N.dbd.N--) bonding groups and a high order parameter. The dichroic liquid crystal compositions each provide a contrast ratio on the order of 10:1.
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Constant, J. et al., "Pleochroic Dyes with High Order Parameters," presented at 6th Intnat'l L. C. Conf., Kent, Ohio (Aug. 23-27 1976).
Blinov, L., et al., J. Phys. (Paris), vol. 36, Cl., No. 3, pp. 69-76 (1975).
White, D., et al., J. Appl. Phys., vol. 45, No. 11, pp. 4718-4723 (1974).
Bloom, A., et al., Mol. Cryst. Liq. Cryst., vol. 41, pp. 1-4 (8/18/77).
Aftergut Siegfried
Cole, Jr. Herbert S,.
Cohen Joseph T.
General Electric Company
Gron T. S.
Krauss Geoffrey H.
Padgett Benjamin R.
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