Organometallic compounds for use in electroluminescent devices

US7429426B2 · kind B2 · utility

Assignees

• University of Southern California · US
• UNIVERSAL DISPLAY CORPORATION · US

Inventors

• Cory S. Brown · Pittsburgh, US
• David B. Knowles · Vandergrift, US
• Raymond Kwong · Plainsboro, US
• Yeh-Jiun Tung · Princeton, US
• Robert W. Walters · Pittsburgh, US
• Peter Djurovich · Long Beach, US
• Mark E. Thompson · Villa Park, US
• Bin Ma · Plainsboro, US

Key dates

• Filing date: Dec 3, 2004
• Grant date: Sep 30, 2008
• Expiry date: Jul 20, 2026

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 device is provided. The device has an anode, a cathode, and an emissive layer disposed between the anode and the cathode. The emissive layer further comprising an emissive material having the structure:M is a metal having an atomic weight greater than 40. R5 is an aromatic group. The emissive material itself is also provided. The emissive material provides an improved stability and efficiency.