Organic electroluminescent materials and devices

US9548462B2 · kind B2 · utility

Assignee

• UNIVERSAL DISPLAY CORPORATION · US

Inventors

• David B. Knowles · Vandergrift, US
• Chun Lin · Yardley, US
• Peter Borden Mackenzie · Murrysville, US
• Jui-Yi Tsai · Newtown, US
• Robert W. Walters · Pittsburgh, US
• Scott Beers · Ewing, US
• Cory S. Brown · Pittsburgh, US
• Walter Yeager · Yardley, US

Key dates

• Filing date: Jan 29, 2016
• Grant date: Jan 17, 2017
• Expiry date: Jan 29, 2036

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K2102/321
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Compounds comprising phosphorescent metal complexes comprising cyclometallated imidazo[1,2-f]phenanthridine and diimidazo[1,2-a:1′,2′-c]quinazoline ligands, or isoelectronic or benzannulated analogs thereof, are described. Organic light emitting diode devices comprising these compounds are also described.