Liquid crystal composition and liquid crystal display element

Details Liquid crystal composition and liquid crystal display element Liquid crystal composition and liquid crystal display element

1997-11-07

1999-10-05

Kelly, C. H.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

25229966, 25229967, 2522996, C09K 1930, C09K 1912, C09K 1920, C09K 1906

Patent

active

059618817

ABSTRACT:
There is provided a liquid crystal composition in particular with a low threshold voltage and a wide range of nematic phase temperature (with high TNI point and low TC), while satisfying various properties required for liquid crystal compositions for active matrix type liquid crystal display elements. The composition contains, for example, compounds represented by general formulas (1-1) and (2-1): ##STR1## where each R.sub.1 independently represents an alkyl group having 1 to 10 carbon atoms; X.sub.1 represents H or F; and each X.sub.2 independently represents F, OCF.sub.3, CF.sub.3, or OCF.sub.2 H.

REFERENCES:
patent: 5045229 (1991-09-01), Bartmann et al.
patent: 5589102 (1996-12-01), Bartmann et al.
patent: 5728319 (1998-03-01), Matsui et al.
patent: 5792386 (1998-08-01), Matsui et al.

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