Organic electroluminescent materials and devices

US12349589B2 · kind B2 · utility

Assignee

• UNIVERSAL DISPLAY CORPORATION · US

Inventors

• Morgan C. MACINNIS · Ewing, US
• Hsiao-Fan CHEN · Lawrenceville, US
• Tyler FLEETHAM · Newtown, US
• Peter Wolohan · Princeton Junction, US
• Jerald Feldman · Wilmington, US
• Jui-Yi Tsai · Newtown, US
• Pierre-Luc T. BOUDREAULT · Ewing, US
• Alexey Borisovich Dyatkin · Ambler, US
• Zhiqiang JI · Ewing, US
• Sean Michael RYNO · Yardley, US
• Rasha HAMZE · Philadelphia, US
• Chun Lin · Yardley, US
• Elena SHEINA · Pittsburgh, US

Key dates

• Filing date: Nov 17, 2021
• Grant date: Jul 1, 2025
• Expiry date: Nov 17, 2041

Classification

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

Abstract

A compound comprising a ligand LA comprising a moiety L having a structure of Formula I is provided. In Formula I, LA coordinated to a metal M; A1 is selected from B, N, P, P═O, P═S, Al, Ga, SiR″, GeR″, and SnR″; where rings A, B, and C are 5- or 6-membered rings; Y1, Y2, and Y3 are selected from direct bonds, the metal M, and a variety of linkers; a+b+c=2 or 3; and one of a number of specific conditions is met. OLED devices, consumer products, and formulations including the compound are also provided.