Organic electroluminescent materials and devices

US11276829B2 · kind B2 · utility

Assignee

• UNIVERSAL DISPLAY CORPORATION · US

Inventors

• Jui-Yi Tsai · Newtown, US
• Alexey Borisovich Dyatkin · Ambler, US
• Zhiqiang JI · Ewing, US
• Walter Yeager · Yardley, US
• Edward Barron · Hillsborough Township, US

Key dates

• Filing date: Sep 15, 2017
• Grant date: Mar 15, 2022
• Expiry date: Sep 16, 2037

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/549
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A compound having a first ligand LA having the Formula: Formula I is disclosed, wherein rings A is a 5- or 6-membered carbocyclic or heterocyclic ring;