Cyclic phosphazene compounds and use thereof in organic light emitting diodes

US8859110B2 · kind B2 · utility

Assignees

• BASF SE
• KONINKLIJKE PHILIPS ELECTRONICS NV · NL
• OSRAM Opto Semiconductors GmbH · DE
• Siemens Aktiengesellschaft · DE

Inventors

• Evelyn Fuchs · Mannheim, DE
• Oliver Molt · Hirschberg, DE
• Nicolle Langer · Heppenheim, DE
• Christian Lennartz · Dublin, IE
• Peter Strohriegl · Bayreuth, DE
• Pamela Schroegel · Bayreuth, DE
• Herbert Friedrich Boerner · Aachen, DE
• Volker Van Elsbergen · Aachen, DE
• Arvid Hunze · Erlangen, DE
• Ralf Krause · Dresden, DE
• Guenter Schmid · Hemhofen, DE

Key dates

• Filing date: Jun 17, 2009
• Grant date: Oct 14, 2014
• Expiry date: Aug 19, 2031

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S428/917
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

An organic light-emitting diode comprising at least one cyclic phosphazene compound, a light-emitting layer formed from at least one matrix material and at least one emitter material, wherein the at least one matrix material comprises at least one cyclic phosphazene compound, the use of cyclic phosphazene compounds in organic light-emitting diodes and a device selected from the group consisting of stationary visual display units, mobile visual display units and illumination units comprising at least one inventive organic light-emitting diode, and selected cyclic phosphazene compounds and processes for preparing them.