Merck Patent Gmbh

Merck Patent Gesellschaft MIT Beschrankter Haftung

Merck Patent Gesellschaft

Merck Patent Gesellschaft MIT Beschr&auml;nkter Haftung

Merck Patent Gesellschaft MIT

Merck Gmbh

Merck Patent Gesellschaft MIT Beschraenkter Haftung

Merck Kgaa

Merck Patent Beschraenkter Haftung

Merck Patent Fesellschaft MIT

Michael Heckmeier

Peer Kirsch

Brigitte Schuler

Volker Reiffenrath

Matthias Bremer

Detlef Pauluth

Joachim Krause

Eike Poetsch

Kazuaki Tarumi

Melanie Klasen-Memmer

Izumi Saito

Sabine Schoen

Marcus Reuter

Elvira Montenegro

Achim Goetz

Louise Diane Farrand

Atsutaka Manabe

Andreas Taugerbeck

Mark John Goulding

Markus Czanta

Bernhard Rieger

Lars Lietzau

Kevin Adlem

David Coates

Rainer Wingen

Herbert Plach

Owain Llyr Parri

Steven Tierney

William Mitchell

Wolfgang Schmidt

Barbara Hornung

Nikolai (Mykola) Ignatyev

Markus Klein

Helge Willner

David Sparrowe

Mark Andrew Verrall

Stephen Christopher Kitson

Urs Welz-Biermann

Nikolai Mykola Ignatyev

Hideo Ichinose

Georg Luessem

Werner Binder

Christian Hock

Alexander Hahn

Volker Meyer

Achim Götz

Martin Engel

Andreas Ruhl

Dagmar Klement

Georg Lüssem

Achim G&ouml;tz

Andreas Tangerbeck

Ulrich Heywang

John Patrick

Warren L Duffy

Juliane Suermann

Georg L&uuml;ssem

Gerald Unger

Michael Darius

Marc Lenges

Stephan Derow

Erdal Durmaz

Weimin Zhang

Hans-Rolf D&uuml;bal

Yasushi Sugiyama

German Bissky

Peter Best

Cecile Schott

Harald Lannert

Giles Lloyd

Masahiro Iijima

Stephan Guertler

Florian Huber

Aisuraka Manabe

Elvira Monrenegro

Shiniji Nakajima

Warren Duffy

The present invention relates to an electro-optical light modulation element and to electro-optical displays and display systems, such as television screens and computer monitors, containing elements of this type. The light modulation elements according to the invention contain a mesogenic modulation medium which is in the isotropic phase during operation of the light modulation elements and are particularly distinguished by very short response times in addition to good contrast and low viewing-angle dependence. The mesogenic modulation media used in the electro-optical light modulation elements are likewise a subject-matter of the present invention.

Electro-optical light control element, display and medium

The invention relates to a conjugated copolymer comprising indenofluorene and triarylamine units and to its use in organic electronic devices.

Conjugated copolymer

The present invention is related to compounds for use in liquid crystal media, liquid crystal media comprising said compounds, the use of said media in electro-optical devices, said electro-optical devices, and the use of said compounds in mesogenic media for use in electro-optical devices that may be operated in an optically isotropic state.

Compounds for use in liquid crystal media

The present invention relates to ionic liquids of low viscosity and high electrochemical stability, in particular for use in the area of electrochemistry and as solvents for carrying out chemical reactions.

Ionic liquids with bis[bis(pentafluoroalkyl)phosphinyl]imides

The instant invention relates to mesogenic media comprising one or more compounds which comprise two or more mesogenic groups two of which are linked to the ortho-positions of an aromatic ring, preferably of formula (I) wherein the parameters are as specified in the text, preferably the instant invention relates to mesogenic media showing a blue phase and their use in electro-optical light modulation elements and their respective use in displays, as well as to such devices. The instant invention further relates to compounds of formula (I). 

Mesogenic compounds, liquid crystal medium and liquid crystal display

The invention relates to pyran derivatives of the formula I and to a process and intermediates for their preparation and derivatisation, and to the use thereof in liquid-crystalline media.

Pyran compound or at least one derivative thereof

The invention relates to chiral phenols, preferably of formula (I), the different parameters having the meaning indicated in the description, liquid crystal media which contain said compounds as chiral doping agents and/or stabilizers, and the use thereof in electro-optical displays. 

Chiral phenol derivative, liquid crystal medium containing said chiral phenol derivative

The invention relates to an electro-optical light control element and to electro-optical displays and display systems, e.g. television screens and computer monitors, which contain elements of this type. The inventive light control elements contain a mesogenic control medium () that exists in an optically isotropic phase when the light control elements are in operation. In addition to having a good contrast, a low dependency on viewing angle and very short switching times, the light control elements are particularly characterized by having relatively low drive voltages. The inventive electro-optical light control elements contain a solid dielectric layer () between the electrode structure () and the mesogenic control layer. The invention also relates to the mesogenic control media, which are used in the electro-optical light control elements and which can exist in a blue phase.

Electro-optical light control element and display having a control medium with an optically isotropic phase

The invention relates to a liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, characterised in that it comprises one or more compounds of the formula I and one or more compounds of the formula IA in which R, Rring A, ring B, L, Z, Z, X, Xand a are as defined in claimwhere the proportion of the compounds of the formula I in the medium is at least 18% by weight.

Liquid crystalline medium

The invention relates to an electro-optic light control element, electro-optic displays containing said elements and display systems such as TV screens and computer monitors. The inventive light control elements contain a mesogenic control medium which is present in the isotropic phase during operation of the light control elements and arc characterized both by good contrast and low angular field dependence and particularly by very short switching, times. The invention also relates to the mesogenic control media used in the electro-optic light control elements.

Electro-optic light control element, display and medium

The invention relates to a photostable liquid-crystalline medium comprising  

Photostable liquid-crystalline medium

The invention relates to a liquid-crystalline medium comprising at least one compound of the formula I in which Z, Z, Z, a, b and c are as defined in claim, and to electro-optical displays containing a liquid-crystalline medium of this type.

Liquid-crystalline medium

The present invention relates to cyclopenta[b]naphthalene derivatives to the use thereof in liquid-crystalline or mesogenic media, to liquid-crystalline or mesogenic media comprising at least one of these cyclopenta[b]naphthalene derivatives, and to electro-optical display elements containing these liquid-crystalline or mesogenic media. 

Cyclopenta[b]naphthalene derivatives

Liquid-crystalline compounds of the formula I in whichR, A, A, Z, Z, X, a, b, L, Land Lare as defined herein, and to liquid-crystalline media comprising at least one compound of the formula I and to electro-optical displays containing a liquid-crystalline medium of this type.

Liquid-crystalline compounds

The present invention relates to dielectrically positive, nematic liquid crystalline media having a small frequency dependence of the dielectric anisotropy. The media are particularly well suited for application in active matrix displays. The present invention relates to the use of the inventive media in active matrix displays, as well as to these active matrix displays themselves.

LC-mixtures with low frequency dependence for TFT-displays

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Hemsbach, Germany

Michael Heckmeier