Patent ID: 11952528
Assignee: MERCK PATENT GMBH
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  G | IPC C  G

Claim 0:
1. A multilayer arrangement for regulating the passage of light, which comprises
a first switching layer which is switchable between an optically clear state and a light scattering state and which contains a material which comprises a liquid-crystalline medium comprising one or more mesogenic compounds, one or more chiral compounds, and a polymeric component, wherein the polymeric component is contained in the material in an amount, based on the overall contents of the material, of 5% by weight or less, and wherein the liquid-crystalline medium of the first switching layer has a clearing point of 80° C. or more, and
a switching element comprising a second switching layer, wherein the switching element is switchable between a bright state and a dark state and wherein the second switching layer is a liquid-crystalline layer which comprises one or more dichroic dyes and optionally one or more chiral compounds,, wherein, relative to an outer face which is facing a light source, the first switching layer is placed in front of the switching element.