Materials for electroluminescence and the utilization thereof

US7659540B2 · kind B2 · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Susanne Heun · Bad Soden, DE
• Rene Peter Scheurich · Groß-Zimmern, DE
• Arne Büsing · Frankfurt, DE
• Aurélie Ludemann · Frankfurt, DE
• Anja Gerhard · Egelsbach, DE
• Philipp Stössel · Frankfurt, DE
• Horst Vestweber · Prüm, DE

Key dates

• Filing date: Oct 21, 2004
• Grant date: Feb 9, 2010
• Expiry date: Aug 17, 2025

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/549
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to organic semiconductors which contain structural units L=X and in addition structural units which emit light from the triplet state. The materials according to the invention are more soluble and easier to synthesize and are therefore more suitable for use in organic light-emitting diodes than comparative materials in accordance with the prior art.