Merck Patent Gmbh

Merck Patent Gesellschaft MIT Beschrankter Haftung

Merck Patent Gesellschaft MIT

Merch Patent Gmbh

Andreas Beyer

Michael Junge

Ursula Patwal

Peer Kirsch

Kazuaki Tarumi

Eike Poetsch

Susann Beck

Volker Reiffenrath

Mila Fischer

Michael Kompter

Anja Huth

Matthias Bremer

Brigitte Schuler

Andreas Wachtler

Ties De Jong

Axel Pausch

Junyou Pan

Alexander Hahn

Qiong Tong

Andreas Ruhl

Casper Laurens Van Oosten

Susann Gunst

Ewa Dominica Ptak

Jasper Van Den Muijsenberg

Felix Fritz Rudolf Schlosser

Henriette Bakker

Ewa Dominika Ptak

Henriëtte Bakker

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

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

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.

Liquid-crystalline medium for use in a switching element

The application relates to a device for regulating the entry of light into a room, which comprises a switchable layer of specific design comprising a twisted nematic liquid-crystalline medium and a dichroic compound.

Device for regulating the entry of light

The present application relates to a device for regulating the passage of light which is characterised in that it comprises a layer comprising a liquid-crystalline mixture containing a characteristic structural element.

Device for regulating the passage of light

An optical switching device comprising a polarisation layer and a switching layer which comprises a liquid-crystalline material and a dye compound. Use of the optical switching device for the regulation of the passage of light through an area element. A window element which has the optical switching device therein.

Optical switching device

The present invention presents a switching layer S for use in a switching element which has forwards-scattering properties in at least one switching state. Furthermore, a switching element which comprises the switching layer S and a window element which includes the switching element are presented.

Optical switching layer for use in an optical switching element

A liquid-crystalline medium which is suitable for use in a guest-host system. An LC device, preferably a device for the regulation of the passage of energy, containing the liquid-crystalline medium.

Liquid-crystalline medium

A device for regulating the passage of energy from an outside space into an inside space includes a switching layer, where the switching layer comprises one or more compounds of the formula: wherein R, Z, Z, Arand X are defined herein.

Device for regulating the passage of energy

The present application relates to novel compounds and to devices which contain these compounds. The application also relates to a device for regulating the passage of energy from an outside space into an inside space, to a window containing the said device, and to uses of the said devices and compounds.

The present application relates to a device for regulating the passage of energy from an outside space into an inside space, where the device comprises a switching layer comprising one or more dichroic dyes of a formula (I) or formula (II).

Device for controlling the passage of energy, containing a dichroic dye compound

Mixtures containing at least one dye compound having a diketopyrrolopyrrole structure and at least one further liquid-crystalline compound are suitable for use in devices for regulating the entry of light into a space.

Dye compounds

A layer arrangement () which changes the transmission of incident light depending on its temperature, where the layer arrangement () has a first polarization layer (), a switching layer () which influences the polarization properties of light depending on the temperature, and a second polarization layer (), whereby both the first polarization layer () and the second polarization layer () are arranged to affect polarization both in the VIS region and in the NIR region.

Layer arrangement for the regulation of light transmission

The present application relates to a device for regulating the passage of light through a light-transmitting area which comprises a switching layer comprising a liquid-crystalline medium comprising at least one dichroic dye, where the parameters degree of light transmission and degree of anisotropy of the device are selected in a certain manner.

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Hanau, Germany

Andreas Beyer