Electro-optical liquid-crystal display

Details Electro-optical liquid-crystal display Electro-optical liquid-crystal display

1997-12-05

1999-07-06

Wu, Shean C.

Compositions

Liquid crystal compositions

25229961, 25229962, 25229963, 25229966, 25229967, 349132, 349191, C09K 1952, C09K 1930, G02F 11337

Patent

active

059193964

ABSTRACT:
The invention relates to an electro-optical liquid-crystal display having a realignment layer for realigning the liquid crystals whose field has a significant component parallel to the liquid-crystal layer and which contains a liquid-crystalline medium of positive dielectric anisotropy, where the medium comprises at least one mesogenic compound of the formula II ##STR1## in which R.sup.1 is H, an alkyl or alkenyl radical having 1 to 15 carbon atoms which is unsubstituted or monosubstituted or polysubstituted by halogen and in which one or more CH.sub.2 groups may each, independently of one another, be replaced by --O--, --S--, --CO--, --COO--, --OCO-- or --OCO--O-- in such a way that O atoms are not linked directly to one another.

REFERENCES:
patent: 5403512 (1995-04-01), Bartmann et al.
patent: 5723682 (1998-03-01), Poetsch et al.

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