Merck Patent Gesellschaft MIT Beschrankter Haftung

Merck Patent Gmbh

Sharp Corporation

Merck Patent Gesellschaft MIT Beschraenkter Haftung

Merck Kgaa

Merck Patent Gesellschaft MIT Beschr&auml;nkter Haftung

Herbert Plach

Reinhard Hittich

Eike Poetsch

Volker Reiffenrath

Bernhard Rieger

Georg Weber

Ekkehard Bartmann

David Coates

Hans A Kurmeier

Bernhard Scheuble

Joachim Krause

Takamasa Oyama

Ulrich Finkenzeller

Andreas Wachtler

Detlef Pauluth

Ludwig Pohl

Hiroshi Numata

Hiroki Yoshitake

Thomas Geelhaar

Fumiaki Funada

Louise Diane Farrand

Simon Greenfield

Kevin Adlem

Achim Goetz

Shuichi Kohzaki

Volker Meyer

John Patrick

Georg Bernatz

Peter Best

Kei Sasaki

Cecile Schott

Klaus P Stahl

Hans-Adolf Kurmeier

Hideo Ichinose

Masako Okada

Atsushi Sawada

Dieter Dorsch

Rudolf Eidenschink

Atsutaka Manabe

Michael Junge

Masako Nakamura

Andreas W&auml;chtler

Paulus Adrianus Breddels

Matthias Bremer

Michael Heckmeier

Elvira Montenegro

Sabine Schoen

Brigitte Schuler

Melanie Klasen-Memmer

Kazuaki Tarumi

Ian Charles Sage

Andreas Taugerbeck

Mark John Goulding

Constanze Brocke

Izumi Saito

Andreas Ruhl

Michael Kompter

David I Bishop

Graham Smith

Syuichi Kozaki

Robert William Clemitson

Shohei Naemura

Achim G&ouml;tz

Stephen J Lewis

Hans-Michael Kompter

Thomas Jacob

Bernard Scheuble

Alasdair Jelfs

Kazuyoshi Fujioka

Detlet Pauluth

Ralf Hochgesand

A liquid-crystalline medium, preferably having a nematic phase and exhibiting a dielectric anisotropy of 0.5 or more, which contains compounds of formula B and formula S  denotes denotes the use thereof in an electro-optical display, particularly in an active-matrix display based on the IPS or FFS effect, displays of this type which contain a liquid-crystalline medium of this type, and the use of the compounds of formula S for the improvement of the transmission and/or response times of a liquid-crystalline medium which contains one or more additional mesogenic compounds.

Liquid-crystalline medium and liquid-crystal display comprising the same

The instant invention relates to mesogenic systems comprising a) a polymeric component, component A, obtained or obtainable from polymerisation of a precursor comprising one or more mesogenic mono-reactive compounds, one or more di-reactive compounds, which optionally are also mesogenic compounds and optionally a photo-initiator and a low molecular weight component, component B, comprising one or more mono-reactive, mesogenic compounds, one or more mesogenic compounds and one or more chiral dopants, exhibiting a Blue Phase, as well as to the use of these systems in deices and to these devices.

Liquid crystal system and liquid crystal display

The present invention relates to nematic liquid-crystal media of negative dielectric anisotropy which have a peak time (t) of 0.25 ms or less, which is determined as described in the disclosure, and which preferably have a value of the quotient of the peak time and the square of the birefringence (t/&#x394;n) of 22 ms or less, and to the use of these liquid-crystal media in liquid-crystal displays, and to these liquid-crystal displays.

Liquid crystal medium and electrooptical display containing same

The instant invention relates to mesogenic systems comprising a) a polymeric component, component A, obtained or obtainable from polymerization of a precursor comprising one or more mesogenic mono-reactive compounds, one or more di-reactive compounds, which optionally are also mesogenic compounds and optionally a photo-initiator and a low molecular weight component, component B, comprising one or more mono-reactive, mesogenic compounds, one or more mesogenic compounds and one or more chiral dopants, exhibiting a Blue Phase, as well as to the use of these systems in deices and to these devices.

The present invention relates to benzochromene derivatives of the formula I where the various parameters have the meaning indicated in the text, and to liquid-crystal media which comprise these compounds, and to the use of the media in electro-optical displays, in particular in TN, OCB, LCOS and/or IPS-LCDs, and to the use of the compounds and physiologically acceptable derivatives thereof as therapeutic active ingredients.

Benzochromene derivatives for use in liquid crystal media and as therapeutic active substances

The invention relates to a matrix liquid crystal display containing integrated non-linear elements and a liquid crystal mixture which has a particularly high resistivity.

Matrix liquid crystal display

Novel phenylcyclohexanes of the formula I in which n is 0 to 7, Qand Qare H, or one of these radicals is alternatively CH, r is 0, 1, 2, 3, 4 or 5, A is trans-1,4-cyclohexylene, 1,4-phenylene, 3-fluoro-1,4-phenylene or a single bond, X is F, Cl, &#x2014;CF, &#x2014;CN, &#x2014;OCFor &#x2014;OCHF, and Y and Z are each, independently of one another, H or F, with the proviso that, in the case where A is a single bond, Q=Q=H and simultaneously X=CN, Y and/or Z are F.

Phenylcyclohexanes and a liquid-crystalline medium

Described are matrix liquid crystal displays having two plane parallel support plates which together with a frame form a cell, integrated non-linear elements for switching individual picture elements on the support plates and a nematic liquid crystal mixture which is present in the cell and has a positive dielectric anisotropy and high resistivity. The liquid crystal mixture has a nematic phase range of at least 60&#xb0; C., a maximum viscosity at 20&#xb0; C. of 30 mPa&#xb7;s and a mean dielectricity constant &#x3b5;&#x2266;8. The liquid crystal mixture contains: a) at least 10% by weight of a liquid-crystalline component B having one or more compounds of the following formulae: and b) up to 90% by weight of a liquid-crystalline component A having one or more compounds with a dielectric anisotropy of &#x2212;1.5 to 1.5 of the formula I: 

Novel phenylcyclohexanes of the formula Iin which n is 0 to 7, Qand Qare H, or one of these radicals is alternatively CH, r is 0, 1, 2, 3, 4 or 5, A is trans-1,4-cyclohexylene, 1,4-phenylene, 3-fluoro-1,4-phenylene or a single bond, X is F, Cl, &#x2014;CF, &#x2014;CN, &#x2014;OCFor &#x2014;OCHF, and Y and Z are each, independently of one another, H or F, with the proviso that, in the case where A is a single bond, Q=Q=H and simultaneously X=CN, Y and/or Z are F.

The present invention relates to a liquid crystal electro-optical switching member that comprises at least one polariser and a liquid crystal layer having an initial orientation in which the liquid crystal molecules are oriented so as to be essentially parallel to the substrates and to each other. The change of orientation of the liquid crystals, from their initial orientation that is substantially parallel to the substrates, is induced by a corresponding electric field which is oriented so as to be practically parallel to the substrates in the case liquid crystal with a negative dielectric anisotropy and so as to be practically perpendicular to the substrates in the case liquid crystal with a positive dielectric anisotropy. The liquid crystal layer has an optical delay &lsqb;(d ) LC&quest;&rsqb; of between 0.06 and 0.43 &mgr;m. The present invention also relates to a liquid crystal display system that comprises said liquid crystal switching members.

Liquid-crystal switching elements comprising a liquid-crystal layer which has extremely low optical retardation and liquid-crystal displays containing them

Liquid-crystalline medium

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Darmstadt, Germany

Herbert Plach