Organic electroluminescent element comprising a carbonyl matrix material

US7701131B2 · kind B2 · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Anja Gerhard · Egelsbach, DE
• Philipp Stössel · Frankfurt, DE
• Horst Vestweber · Prüm, DE

Key dates

• Filing date: Jul 20, 2004
• Grant date: Apr 20, 2010
• Expiry date: Mar 14, 2026

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K2101/10
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to organic electroluminescent devices, comprising at least two mutually-defining emission layers, whereby said layers emit different wavelengths of light. Said electroluminescent device is characterized in that at least one of the emitter layers contains at least one phosphorescent layer.