Polymer-stabilised liquid-crystal media and displays

US9217109B2 · kind B2 · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Axel Jansen · Darmstadt, DE
• Thorsten Kodek · Mörfelden, DE
• Helmut Haensel · Heilbad Heiligenstadt, DE
• Erdal Durmaz · Darmstadt, DE
• Julia Sprang · Neu-Anspach, DE

Key dates

• Filing date: Jun 29, 2011
• Grant date: Dec 22, 2015
• Expiry date: Nov 8, 2031

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K2019/548
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to liquid-crystalline media and display devices comprising polymerizable compounds, to the use of the polymerizable compounds for optical, electro-optical and electronic purposes, in particular in liquid-crystal (LC) media and LC displays having a polymer-stabilized blue phase, and in LC media for LC displays of the PS or PSA (“polymer sustained” or “polymer sustained alignment”) type. The polymerizable compounds comprise a ring system which is functionalized by three or more polymerizable groups, each connected via an optional spacer group.