Abstract: 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 ?m or more and a clearing point of 80° 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.

Abstract: 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.

Abstract: The present invention relates to liquid crystalline media comprising one or more benzothiadiazol derivatives of formula I, in which R11, R12, A11, A12, A21, A22, Z11, Z12, Z21, Z22, W, X11, X12, r and s have the meanings indicated in claim 1, 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.

Abstract: The present invention relates to liquid-crystalline media comprising one or more mesogenic compounds, one or more chiral compounds, and one or more polymerisable mesogenic compounds, wherein the media exhibit a pitch of 0.55 ?m or more and a clearing point of 80° C. or more and wherein the one or more polymerisable mesogenic compounds are contained in an amount, based on the overall contents of the media, of 5% by weight or less. The present invention further relates to modulation materials obtainable from the media and to switching layers and window elements containing the materials.

Abstract: 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.

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

Abstract: The present invention relates to thiadiazoloquinoxaline derivatives of the formula I, in which R11, R12, A11, A12, A21, A22, Z11, Z12, Z21, Z22, W, X11, X12, r and s have the meanings indicated in Claim 1, 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.

Abstract: 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.

Abstract: The present invention relates to mesogenic media and to electro-optical displays comprising these media as light modulation media. In particular, the electro-optical displays according to the present invention are displays, which are operated at a temperature, at which the mesogenic modulation media are in an optically isotropic phase, preferably in a blue phase.

Abstract: 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.

Abstract: The present invention relates to liquid crystalline media comprising one or more benzothiadiazol derivatives of formula I, in which R11, R12, A11, A12, A21, A22, Z11, Z12, Z21, Z22, W, X11, X12, r and s have the meanings indicated in claim 1, 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.

Abstract: The present application relates to a liquid-crystalline material which comprises at least one dye compound and at least one compound of a formula (IA) or (IB). The liquid-crystalline material is suitable for use in optical switching devices, in particular in devices for the homogeneous regulation of the passage of light through an area.

Abstract: 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.

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

Abstract: The present invention relates to mesogenic media and to electro-optical displays comprising these media as light modulation media. In particular, the electro-optical displays according to the present invention are displays, which are operated at a temperature, at which the mesogenic modulation media are in an optically isotropic phase, preferably in a blue phase.

Abstract: The present invention relates to thiadiazoloquinoxaline derivatives of the formula I, in which R11, R12, A11, A12, A21, A22, Z11, Z12, Z21, Z22, W, X11, X12, r and s have the meanings indicated in claim 1, 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.

Abstract: 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.

Abstract: The instant invention relates to mesogenic media exhibiting a blue phase, comprising one or both components selected from the two following components, components A and B, component A, comprising one or more compounds selected from the group of compounds of formula I-M, and component B, consisting of one or more compounds selected from the group of compounds of formula I-U, wherein the parameters are as specified in the text, preferably stabilized by a polymer, and their use in electro-optical light modulation elements and their respective use in displays, as well as to such displays.

Abstract: The present application relates to a liquid-crystalline material which comprises at least one dye compound and at least one compound of a formula (IA) or (IB). The liquid-crystalline material is suitable for use in optical switching devices, in particular in devices for the homogeneous regulation of the passage of light through an area.

Abstract: The instant invention relates to mesogenic media comprising one or more compounds selected from the group of compounds of formulae M-I and M-II wherein the parameters are as specified in the text, preferably to mesogenic media showing a blue phase, preferably stabilized by a polymer, and their use in electro-optical light modulation elements and their respective use in displays, as well as to such devices.