Merck Patent Gesellschaft MIT Beschrankter Haftung

Sharp Corporation

Hiroshi Numata

Herbert Plach

Hideo Ichinose

Volker Reiffenrath

Eike Poetsch

Bernhard Rieger

Fumiaki Funada

Shuichi Kohzaki

Kei Sasaki

Kazuaki Tarumi

Masako Okada

Georg Weber

Reinhard Hittich

Brigitte Schuler

Thomas Geelhaar

Michael Schwarz

Masako Nakamura

Akiko Takashima

Yasuyoshi Namiki

Matthias Bremer

Michael Junge

Ekkehard Bartmann

Ulrich Finkenzeller

Hiroki Yoshitake

Axel Pausch

Akihiro Kojima

Fumio Shimano

Syuichi Kozaki

Yukiomi Tanaka

Shohei Naemura

Kazuyoshi Fujioka

Atsusi Sawada

Liquid crystalline medium

Liquid-crystalline medium

A nematic liquid crystal mixture having a birefringence .increment.n of at least 0.20, comprising at least one fluorinated terphenyl of formula I and at least one fluorinated terphenyl of formula II ##STR1## wherein R and R' are each independently of one another or alkyl of up to 12 C atoms, optionally substituted by halogen, CH.sub.2 group optionally replaced, in each case independently of one another, by --O--, ##STR2## in such a manner that oxygen atoms are not linked directly to one another,

Nematic liquid crystal mixtures

Liquid-crystalline medium based on a mixture of polar compounds having positive dielectric anisotropy, characterized in that it contains one or more compounds of the general formula I ##STR1## in which, R, A.sup.1, Z.sup.1, Y, ring B and m are as defined in claim 1.

Benzene derivatives, and liquid-crystalline medium

Nematic liquid-crystal composition for active matrix application

Supertwist liquid-crystal display

The invention relates to a liquid-crystalline medium based on a mixture of polar compounds having positive dielectric anisotropy, characterized in that it contains one or more compounds of the general formula I ##STR1## in which X is fluorine, chlorine, CF.sub.3, OCF.sub.3 or OCHF.sub.2, ring A is trans-1,4-cyclohexylene or 1,4-phenylene, and R is alkyl, oxaalkyl, fluoroalkyl or alkenyl, in each case having up to 7 carbon atoms.

The invention relates to a nematic liquid-crystal composition for active matrix displays with high voltage holding ratio and extremely good low temperature stability.

Supertwist liquid-crystal displays having excellent properties are obtained using a nematic liquid-crystal mixture based on component A which contains

A nematic liquid-crystal composition for active matrix displays has a high voltage holding ratio and extremely good low temperature stability.

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Yokohama, Japan

Hiroshi Numata