Liquid-crystalline mixture

Details Liquid-crystalline mixture Liquid-crystalline mixture

1993-11-17

1995-02-21

Wu, Shean

Compositions

Liquid crystal compositions

25229963, 25229966, 25229967, 359103, 359106, C09K 1952, C09K 1930, C09K 1920, G02F 113

Patent

active

053913191

ABSTRACT:
A liquid-crystalline mixture comprising two or more compounds of the general formula I, ##STR1## in which R.sup.1 is straight-chain alkyl having 3, 5 or 7 carbon atoms, three or more compounds of the general formula II, ##STR2## in which R.sup.2 is straight-chain alkyl having 2 to 7 carbon atoms, three or more compounds of the general formula III, ##STR3## in which R.sup.3 and R.sup.4 are each independently alkyl or alkoxy with 1 to 10 carbon atoms, and two or more compounds of the general formula IV, ##STR4## in which R.sup.5 and R.sup.6 are each independently have one of the meanings indicated for R.sup.3 and m is 0 or 1. A "multibottle-system" comprising said mixture and an electrooptical display device based on the principle of the twisted nematic cell.

REFERENCES:
patent: 3947375 (1976-03-01), Gray et al.
patent: 4001137 (1977-01-01), Steinstrasser
patent: 4130502 (1978-12-01), Eidenschink et al.
patent: 4154697 (1979-05-01), Eidenschink et al.
patent: 4330426 (1982-05-01), Eidenschink et al.
patent: 4398803 (1983-08-01), Pohl et al.
patent: 5035489 (1991-07-01), Iijima et al.

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