Liquid crystal composition and liquid crystal display using said

Details Liquid crystal composition and liquid crystal display using said Liquid crystal composition and liquid crystal display using said

1992-07-09

1993-11-02

Stoll, Robert L.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

25229901, 359106, C09K 1930, G02F 113

Patent

active

052581357

ABSTRACT:
Liquid crystal compositions comprising: at least one of the compounds of the general formula (I) and at least one of the compounds of the general formula (II); and optionally including at least one of the compounds of the general formula (III), or, when compound (III) is present, optionally including at least one of the compounds of the general formula (IV) are provided. ##STR1## All the symbols are as defined in the appended claims, namely, R.sup.1 is an alkyl group having 1 to 5 carbon atoms; R.sup.2 is an alkyl group having 2 to 8 carbon atoms; R.sup.3 is an alkyl group having 1 to 5 carbon atoms; R.sup.4 is an alkyl group having 2 to 8 carbon atoms; R.sup.5 is H or F; R.sup.6 is an alkyl group having 1 to 8 carbon atoms, an alkoxyl group having 1 to 8 carbon atoms, F, or a CN group; and R.sup.7 is an alkyl group having 2 to 10 carbon atoms or an alkenyl group having 2 to 10 carbon atoms. The compositions are suitable for use in highly multiplexed displays of the supertwisted birefringence effect mode.

REFERENCES:
patent: 4468340 (1984-08-01), Inoue et al.
patent: 4507222 (1985-03-01), Inoue et al.
patent: 4822519 (1989-04-01), Saito et al.
patent: 4877549 (1989-10-01), Sawada et al.
patent: 5102577 (1992-04-01), Uchida et al.
patent: 5202055 (1993-04-01), Uchida et al.

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