Merck Patent Gmbh

Merck Patent Gesellschaft MIT Beschrankter Haftung

Lofo High Tech Film Gmbh

Axel Jansen

Volker Reiffenrath

Matthias Bremer

Helmut Haensel

Detlef Pauluth

Melanie Klasen-Memmer

Andreas Taugerbeck

Harald Hirschmann

Thorsten Kodek

Erdal Durmaz

Michael Wittek

Malgorzata Rillich

Bernhard Rieger

Markus Czanta

Achim Goetz

Christian Hock

Brigitte Schuler

Atsutaka Manabe

Kazuaki Tarumi

Hubert Spreitzer

Lars Lietzau

Bernd Fiebranz

Hanns Wurziger

Izumi Saito

Georg Bernatz

Martina Windhorst

Norihiko Tanaka

David Maillard

Andreas Pohle

Ulrich Siemann

Beate Kretschmer

Julia Sprang

Brigette Schuler

Ilona Herm

Philipp Krattiger

Kai Jaehrling

Herald Hirschmann

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

Mesogenic media comprising one or more compounds of formulae I or II preferably mesogenic media showing a blue phase, preferably stabilized by a polymer, and their use in electro-optical light modulation elements and their respective use in displays, as well as such devices.

Liquid crystal medium and liquid display

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

Polymerisable compounds and the use thereof in liquid-crystal media and liquid-crystal displays

The present invention relates to polymerisable compounds, to processes and intermediates for the preparation thereof, to the use thereof for optical, electro-optical and electronic purposes, in particular in liquid-crystal (LC) media and LC displays having a polymer-stabilised blue phase, and in LC media for LC displays of the PS or PSA ('polymer sustained' or 'polymer sustained alignment') type, and to LC media and LC displays comprising these compounds.

The invention relates to 1,1-disubstituted cyclohexane derivatives containing one or more polymerizable groups, and to liquid-crystalline media comprising at least one compound of the formula I. At least one of the polymerizable groups is located at the geminally substituted position of the cyclohexane ring. The compounds are suitable for the stabilization of liquid-crystalline phases. Examples of polymer-stabilized blue phases are indicated.

Polymerizable compounds and liquid crystal media

The present invention relates to liquid-crystalline media and display devices comprising polymerizable compounds, to the use of the polymerizable compounds for optical, electro-optical and electronic purposes, in particular in liquid-crystal (LC) media and LC displays having a polymer-stabilized blue phase, and in LC media for LC displays of the PS or PSA ('polymer sustained' or 'polymer sustained alignment') type. The polymerizable compounds comprise a ring system which is functionalized by three or more polymerizable groups, each connected via an optional spacer group.

Polymer-stabilised liquid-crystal media and displays

The invention relates to an electro-optical liquid-crystal display which contains, as dielectric, a liquid-crystalline medium having negative dielectric anisotropy and includes a backlight which essentially only emits light having a wavelength of 400 nm or more or has, between the liquid-crystal layer and the backlight, a cut-off filter which essentially only allows light having a wavelength of 420 nm or more to pass through. In particular, the liquid-crystalline medium comprises in which the parameters have the meanings indicated in claim, and a further (second) dielectrically negative component (component B). Very particular preference is given to the use of the liquid-crystalline media in an electro-optical display, particularly in an active-matrix display based on the VA, ECB, PSVA, FFS or IPS effect and very particularly in displays which use an LED backlight.

Liquid crystal display and liquid crystalline medium

The present invention relates to liquid-crystalline media (LC media) comprising thiophene derivatives and to liquid-crystal displays (LC displays) containing these LC media. The media have high optical anisotropy and preferably have a content of thiophene derivatives of 25% by weight or more.

Liquid crystal medium containing thiophene derivatives

The present invention relates to polymerisable compounds, to processes and intermediates for the preparation thereof, to the use thereof for optical, electro-optical and electronic purposes, in particular in liquid-crystal (LC) media and LC displays having a polymer-stabilized blue phase, and in LC media for LC displays of the PS or PSA ('polymer sustained' or 'polymer sustained alignment') type, and to LC media and LC displays comprising these compounds.

The invention relates to compounds of the formula I in which

Liquid crystal medium

The invention relates to compensation films for liquid-crystal displays with additions of rod-shaped liquid crystals mentioned below, to polarizer plates which have at least one compensation film of this type, to liquid-crystal displays which have compensation films of the said type, and to processes for the production of the said compensation films, polarizer plates and liquid-crystal displays, to the use of the compounds described in greater detail below as additions to compensation films for liquid-crystal displays, and to further subject-matters of the invention which can be seen below.

Optical compensation films

The present invention relates to liquid-crystalline compounds having two fluorinated biphenyl units, a terminal trifluoromethyl or trifluoromethoxy group and a &#x2014;CFO&#x2014; bridge between the two fluorinated biphenyl units. The invention also relates to liquid-crystalline media prepared therewith and to liquid-crystal display devices (LC displays) containing these media.

Liquid-crystalline compounds and liquid-crystalline media

The present invention relates to thiophene derivatives, to processes and intermediates for the preparation thereof, to the use thereof for optical, electro-optical and electronic purposes, in particular in liquid-crystal (LC) media and LC displays, and to LC media and LC displays comprising same.

Thiophene derivatives, and LC media comprising same

Thiophene derivatives, and LC media containing same

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Darmstadt, Germany

Axel Jansen