Merck Patent Gmbh

Merck Patent Gesellschaft MIT Beschraenkter Haftung

Martin Engel

Achim Goetz

Rocco Fortte

Thorsten Kodek

Michael Heckmeier

Brigitte Schuler

Andreas Taugerbeck

Ingo Almeroth

Sabrina Maag

Matthias Bremer

Stephan Derow

Christoph Marten

Peer Kirsch

Detlef Pauluth

Junyou Pan

Helmut Haensel

Oliver Heppert

Volker Reiffenrath

Melanie Klasen-Memmer

Harald Hirschmann

Atsutaka Manabe

Constanze Brocke

Lars Lietzau

Herwig Buchholz

Aurélie Ludemann

Marcus Reuter

Alexander Hahn

Nils Koenen

Qiong Tong

Martina Windhorst

Monika Bauer

Helga Haas

Timo Uebel

Eveline Baron

Julian Vogt

Sebastian Hofmeyer

Thomas Mergner

Nico John

Thorsten Kodex

A liquid-crystalline medium containing one or more compounds of formula IA, and the use thereof in an active-matrix display, in particular in a VA, IPS, U-IPS, FFS, UB-FFS, SA-VA, SA-FFS, PS-VA, PS-OCB, PS-IPS, PS-FFS, PS-UB-FFS, PS-posi-VA, PS-TN, polymer stabilised SA-VA or polymer stabilised SA-FFS display.

Liquid-crystal medium

Compounds of the formula I in which groups and parameters that occur have the definitions given in the disclosure. Preparation methods for these compounds. Uses of the compounds as components in liquid-crystalline media. Electrooptical display elements comprising the liquid-crystalline media.

Dibenzofuran derivatives and dibenzothiophene derivatives

Compounds of the formula I, and liquid-crystalline media, preferably having a nematic phase and negative dielectric anisotropy, comprising    Methods for making and using these liquid-crystalline media in electro-optical displays, particularly in active-matrix displays based on the VA, ECB, PALC, FFS or IPS effect and the displays which contain these media. Methods for stabilizing liquid-crystalline media with compounds of formula I, where the liquid-crystalline media comprise one or more compounds of the formula II and one or more compounds selected from compounds of the formulae III-1 to III-4 and formula B.

Compounds and liquid-crystalline medium

Compounds of formula I, and liquid-crystalline media, preferably having a nematic phase and negative dielectric anisotropy, comprising:    Use thereof in electro-optical displays, particularly in active-matrix displays based on the VA, ECB, PALC, FFS or IPS effect and use of compounds of formula I for stabilisation of liquid-crystalline media which comprise one or more compounds of formula II and/or one or more compounds selected from compounds of formulae III-1 to III-4 and B.

Polymerisable compounds and processes and intermediates for the preparation thereof. Also liquid-crystal (LC) media comprising the polymerisable compounds, and the use of the polymerisable compounds and LC media for optical, electro-optical and electronic purposes, in particular in LC displays, especially in LC displays of the PSA ('polymer sustained alignment') type.

Polymerisable compounds and the use thereof in liquid-crystal displays

Disclosed are compounds of the formula I, liquid-crystalline media comprising the compounds of formula I, and the use of these liquid-crystalline media in liquid-crystal displays.

Piperidine derivatives and liquid-crystalline medium

Compounds of formula I, in which X, X, Sp, and R are as defined herein, are suitable for use in liquid-crystal media, such as liquid-crystal media used in liquid-crystal displays.

The present invention relates to polymerizable compounds, to processes and intermediates for the preparation thereof, and to the use thereof for optical, electro-optical and electronic purposes, in particular in liquid-crystal (LC) media and LC displays, especially in LC displays of the PS ('polymer sustained') or PSA ('polymer sustained alignment') type.

Polymerizable compounds and the use thereof in liquid-crystal displays

The present invention relates to organic electroluminescent devices which comprise aromatic ring systems with two or three condensed rings as emitter materials, and to their possible uses.

Emitter having a condensed ring system

The invention concerns polymers, electroluminescence devices, compositions and their use.

Emitter and hosts with aromatic units

The present invention relates to a liquid crystal (LC) display of the FFS type comprising a liquid crystal medium with negative dielectric anisotropy and a di- or multireactive polymerizable compound, and an alignment layer inducing planar alignment in the LC medium.

Liquid crystal display

The compounds of the formula I, and a liquid-crystalline medium, preferably having a nematic phase and negative dielectric anisotropy, which comprises  in which the parameters have the meanings defined herein, are suitable for use in an electro-optical display, particularly in an active-matrix display based on the VA, ECB, PALC, FFS or IPS effect.

Liquid-crystalline medium

The present invention relates to polymerizable compounds, to processes and intermediates for the preparation thereof, to liquid-crystal (LC) media comprising them, and to the use of the polymerizable compounds and LC media for optical, electro-optical and electronic purposes, in particular in LC displays, especially in LC displays of the PSA ('polymer sustained alignment') type.

The present invention relates to a liquid crystal (LC) medium, to its use for optical, electro-optical and electronic purposes, in particular in LC displays, especially in LC displays of the PS ('polymer sustained') or PSA ('polymer sustained alignment') type, and to LC displays, especially PS or PSA displays, comprising said LC medium.

Liquid crystal medium

Polymerizable compounds, to processes and intermediates for the preparation thereof, and to the use thereof for optical, electro-optical and electronic purposes, in particular in liquid-crystal (LC) media and LC displays, especially in LC displays of the PS ('polymer sustained') or PSA ('polymer sustained alignment') type.

Growing community of inventors

Darmstadt, Germany

Martin Engel