Patent · US Active

Liquid-crystalline medium for use in a switching element

US11788009B2 · kind B2 · utility

0Cited by

7References

21Claims

0Family size

Assignee

Merck Patent GmbH · DE

Inventors

Paul Verbunt · Roermond, NL
Ties De Jong · Utrecht, NL
Michael Junge · Munich, DE
Mila Fischer · Bremke, DE

Key dates

Filing date	Dec 3, 2018
Grant date	Oct 17, 2023
Priority date	—
Expiry date	Jun 3, 2039

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE06B2009/2464
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

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 μm 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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.