Merck Patent Gmbh

Merck Patent Gesellschaft MIT Beschrankter Haftung

Merch Patent Gmbh

Michael Junge

Ursula Patwal

Andreas Beyer

Peer Kirsch

Mila Fischer

Volker Reiffenrath

Susann Beck

Andreas Ruhl

Ties De Jong

Eike Poetsch

Matthias Bremer

Detlef Pauluth

Herbert Plach

Sabine Schoen

Bernhard Rieger

Volker Meyer

Georg Weber

Rudolf Eidenschink

Elvira Montenegro

Reinhard Hittich

Harald Hirschmann

Atsutaka Manabe

Kazuaki Tarumi

Michael Wittek

Ekkehard Bartmann

Junyou Pan

Markus Czanta

Christian Jasper

Hideo Ichinose

Alexander Hahn

Qiong Tong

Graziano Archetti

Mark Goebel

Hyun-Jin Yoon

Susann Gunst

Ewa Dominica Ptak

Rainer Neeff

Christoph Wetzel

Rene Lutz

Hiroshi Numata

Juliane Suermann

Michael Kompter

Edgar Boehm

Christian Schoenefeld

Timo Uebel

Casper Laurens Van Oosten

Axel Pausch

Akihiro Kojima

Ming-Chou Wu

Jasper Van Den Muijsenberg

Hoo-Yong Lee

Dagmar Zimmermann

Paul Verbunt

Andrea Ritter

Martina Schmidt

Felix Fritz Rudolf Schlosser

Raphael Lisicki

Henriette Bakker

Matthias Koehler

Antje Mühlfeld

Theresa Lorenz

René Lutz

Kerstin Altenburg

Christine Pfister

Alasdair Jelfs

Atsusi Sawada

Kevin Kaiser

Ewa Dominika Ptak

Henriëtte Bakker

Ewa Dominica Ptak-Agguel

Cecile Schott

A light valve that is operable in and electrically switchable between an optically clear and transparent state and an opaque state, wherein one or more polymerisable mesogenic compounds provided in a layer containing a liquid-crystalline medium that comprises one or more mesogenic compounds, one or more chiral compounds, one or more dichroic dyes and the one or more polymerisable mesogenic compounds are subjected to photopolymerisation. Further, a liquid-crystalline medium used in the method, a light valve obtained or respectively obtainable by carrying out the method, and the use of the light valve in mobile devices.

Liquid crystal-based light valve

The present invention relates to a liquid crystalline medium comprising dichroitic dyes made of benzothiadiazoles and related extended heterocyclic derivatives, the use of said medium for optical, electro-optical and electronic purposes, in particular in devices for regulating the passage of radiation energy from an outside space into an inside space, for example in windows. The invention further relates to devices containing the liquid crystalline medium according to the invention. Some new dichroitic dyes are disclosed.

Liquid crystalline medium

A glazing () comprising a switchable optical device () is proposed. The switchable optical device () has a layer structure comprising in this order a first substrate (), a switchable layer () and a second substrate (). Further, at least one of the first substrate () and the second substrate () is attached to a further sheet () by means of an adhesive tape () or an optically clear adhesive (). Further aspects of the invention relate to a laminated structure and an insulated glazing unit comprising such a glazing () and a method for manufacturing of such a glazing ().

Glazing comprising a switchable device, laminated structure and method for manufacturing of a glazing

The present invention relates to an assembly of switching layers for dimming and scattering of light and to window elements comprising the arrangement of switching layers.

Switching layers for use in a switching element

The present invention relates to compositions comprising a combination of benzothiadiazole and thiadiazoloquinoxaline derivatives, to liquid-crystalline media containing the compositions, and to the use of the compositions and the media in optical, electronic and electro-optical devices, in particular in devices for regulating the passage of energy from an outside space into an inside space, for example in switchable windows.

Dichroic dye composition

A switchable window element with a layer structure comprising a switchable layer, two polarizers and two optical retarders; wherein a first polarizer and a first optical retarder are arranged in an optical path prior to the switchable layer and a second polarizer and a second optical retarder are arranged in the optical path after the switchable layer wherein the switchable layer is a vertically aligned liquid crystal layer comprising a liquid crystalline medium and wherein the product of the thickness d of the switchable layer and the optical anisotropy &#x394;n of the liquid crystalline medium is in the range of from 0.05 &#x3bc;m to 3.0 &#x3bc;m and the liquid crystalline medium has a clearing point of at least 70&#xb0; C.

Switchable window element

Liquid-crystalline media containing one or more mesogenic compounds, one or more chiral compounds, and one or more polymerizable mesogenic compounds, wherein the media exhibit a pitch of 0.55 &#x3bc;m or more and a clearing point of 80&#xb0; C. or more and wherein the one or more polymerizable mesogenic compounds are contained in an amount, based on the overall contents of the media, of 5% by weight or less, are suitable as modulation materials. Such modulation materials can be used in switching layers and window elements.

Liquid-crystalline medium for use in a switching element

Devices for the regulation of light transmission and in particular switchable windows, including window elements containing a switchable optical cell having a homeotropically aligned liquid crystal layer with a pretilt angle in the range of 77&#xb0; to 88&#xb0;.

Device for the regulation of light transmission

The present invention relates to liquid-crystalline media comprising one or more mesogenic compounds of formula I as set forth hereinafter, wherein the one or more compounds of formula I are contained in the medium in an amount, based on the overall contents of the medium, of at least 15% by weight. The present invention further relates to a switching layer, a switching element and a window element containing the liquid-crystalline medium.

The present invention relates to azo dye of formula I defined in claim, to a liquid crystalline medium comprising said azo dye, the use of said medium for optical, electrooptical and electronic purposes, in particular in devices for regulating the passage of energy from an outside space into an inside space, for example in windows. The invention further relates to a device containing the liquid crystalline medium according to the invention.

Azo dye

The present invention relates to benzotriazole derivatives selected from the group of compounds of formulae Ia, Ib and Ic as defined in claim, to mesogenic media comprising the compounds of formulae Ia, Ib and Ic, and to the use of these compounds and mesogenic media in optical, electronic and electro-optical applications, in particular in devices for regulating the passage of energy from an outside space into an inside space, for example in windows.

The present invention relates to liquid crystalline media comprising one or more benzothiadiazol derivatives of formula I, in which R, R, A, A, A, A, Z, Z, Z, Z, W, X, X, r and s have the meanings indicated in claim, to the use of such liquid crystal media for optical, electro-optical and electronic purposes, in particular in devices for regulating the passage of energy from an outside space into an inside space, for example in windows.

The present application relates to a liquid-crystalline material comprising a sterically hindered N-oxide and a dye. The invention furthermore relates to the use of the liquid-crystalline material in an optical switching device for regulation of the passage of sunlight.

Liquid-crystal material

The present invention relates to liquid crystalline media comprising one or more naphthothiadiazol derivatives of formula I, in which R, R, A, A, A, A, Z, Z, Z, Z, W, X, X, L, r, s and t have the meanings indicated in claim, to the use of such liquid crystal media for optical, electro-optical and electronic purposes, in particular in devices for regulating the passage of energy from an outside space into an inside space, for example in windows.

Novel dithiopyrrolopyrrole derivatives having dichroic properties which have very high photostability in solution in a liquid-crystalline host are proposed.

Dithioalkylpyrrolopyrroles and the use thereof as dyes

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Pfungstadt, Germany

Michael Junge