Merck Patent Gmbh

Susann Gunst

Peer Kirsch

Michael Junge

Ursula Patwal

Andreas Ruhl

Brigitte Schuler

Christian Jasper

Andreas Beyer

Helmut Haensel

Mila Fischer

Christoph Wetzel

Rene Lutz

Andrea Ritter

René Lutz

Kerstin Altenburg

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

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 thiadiazoloquinoxaline derivatives of the 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 processes and intermediates for the preparation thereof, to the use of the compounds of the formula I for optical, electro-optical and electronic purposes, in particular in liquid-crystal media and in devices for regulating the passage of energy from an outside space into an inside space, and to these LC media and the devices comprising these media.

Thiadiazoloquinoxaline derivatives

The invention relates to compounds of the formula I, in which R, A, Z, m, L, L, Land X have the meanings indicated in Claim, to a process for the preparation thereof, 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.

Naphthalene compounds for liquid-crystalline mixtures

The present invention relates to heteroaromatic compounds which have two different reactive groups, their use in the synthesis of asymmetrically substituted compounds, and synthesis processes in which the compounds according to the invention are reacted sequentially with two different compounds, whereby an asymmetrically substituted compound is formed.

Intermediates and procedures for the synthesis of functional materials

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.

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Darmstadt, Germany

Susann Gunst