Patent · US Expired

Mesogenic compounds, liquid crystal medium and liquid crystal display

US7914859B2 · kind B2 · utility

2Cited by

2References

7Claims

0Family size

Assignee

Merck Patent GmbH · DE

Inventors

Peer Kirsch · Darmstadt, DE
Gerald Unger · Weiterstadt, DE
Andreas Ruhl · De Pere, US
Michael Heckmeier · Bensheim, DE
Peter Best · Darmstadt, DE
John Patrick · Carthage, US

Key dates

Filing date	Dec 22, 2005
Grant date	Mar 29, 2011
Priority date	—
Expiry date	Dec 22, 2025

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09K2323/00
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The instant invention relates to mesogenic media comprising one or more compounds which comprise two or more mesogenic groups two of which are linked to the ortho-positions of an aromatic ring, preferably of formula (I) wherein the parameters are as specified in the text, preferably the instant invention relates to mesogenic media showing a blue phase and their use in electro-optical light modulation elements and their respective use in displays, as well as to such devices. The instant invention further relates to compounds of formula (I).

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