Merck Patent Gmbh

Andreas Pohle

Harald Hirschmann

Sabine Schoen

Christian Hock

Martina Windhorst

Volker Reiffenrath

Peer Kirsch

Elvira Montenegro

Brigitte Schuler

Lars Lietzau

Markus Czanta

Christian Jasper

Helmut Haensel

Axel Jansen

Qiong Tong

Mark Goebel

Reiner Friedrich

Christoph Marten

Kaja Christina Deing

Christian Schoenefeld

Helga Haas

Hee-Kyu Lee

The present invention relates to a liquid-crystalline medium (LC medium), to the use thereof for electro-optical purposes, and to LC displays containing this medium.

Liquid-crystal medium

Polyfluorinated additives for use as components in liquid-crystal mixtures. Liquid-crystal mixtures which comprise these compounds. And liquid-crystal displays based on these liquid-crystal mixtures.

Additives for liquid crystal mixtures

The invention relates to dielectrically positive liquid crystalline media comprising a compound of formula I wherein the parameters have the meaning given in claimand to liquid crystal displays comprising these media, especially to active matrix displays and in particular to TN and IPS mode displays.

Liquid crystalline medium

The invention relates to a liquid-crystalline medium which comprises at least one compound of the formula I,  in such a way that O atoms are not linked directly to one another, and in which, in addition, one or more H atoms may be replaced by halogen, 

The invention relates to a liquid-crystalline medium comprising at least one compound of the formula I, in which Rhas the meanings indicated in Claim, and to the use thereof in liquid-crystalline media and in electro-optical liquid-crystal displays.

Liquid-crystalline medium

The invention relates to compounds of the formula I and to a liquid-crystalline medium which comprises one or more compounds of the formula I, in which R, X, X, Yand Yhave the meanings indicated in Claim, and to the use thereof for electro-optical purposes, in particular for shutter glasses, 3D applications, in TN, PS-TN, STN, TN-TFT, OCB, IPS, PS-IPS, FFS, PS-FFS and PS-VA-IPS displays.

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Pfungstadt, Germany

Andreas Pohle