University of Michigan

Universal Display Corporation

University of Southern California

Muazzam Idris

Stephen R Forrest

Mark Edward Thompson

Tyler Fleetham

Joseph A Macor

Chan Ho Soh

Mahesh Paudyal

Jason Brooks

Hsiao-Fan Chen

Geza Szigethy

Douglas Williams

Rasha Hamze

Daniel Sylvinson Muthiah Ravinson

Karim El Roz

Abegail Tadle

Elena Sheina

Neil Palmer

Provided are compounds having the structure of Formula I: wherein rings A, B, and D are each independently a 5-membered or 6-membered carbocyclic or heterocyclic ring; X-Xare each independently C or N; Yis selected from the group consisting of a direct bond, O, S, Se, NR, SiRR', CRR′, and P(O)R; R, R′, R, R, R, and Reach independently represents mono to the maximum allowable substitution, or no substitution; each R, R′, R, R, R, and Ris independently a hydrogen or a substituent; and any two adjacent groups of R, R, R, and Rmay be joined or fused to form a ring Also provided are formulations comprising these compounds. Further provided are OLEDs and related consumer products that utilize these compounds.

Organic electroluminescent materials and devices

Provided are organometallic compounds. Also provided are formulations comprising these organometallic compounds. Further provided are OLEDs and related consumer products that utilize these organometallic compounds.

A hybrid emissive layer and OLED incorporating the same are provided. The hybrid emissive layer includes a first material having a triplet state energy level T1and a singlet state energy level S1, a second material having a triplet state energy level T1and a singlet state energy level S1; and a third material having a triplet state energy level T1and a single state energy level S1, where T1T1; S1S1; and T1<T1.

OLED with hybrid emissive layer

An OLED device comprises an anode and a cathode, and at least one graded emissive layer disposed between the anode and the cathode, the graded emissive layer comprising first and second materials, wherein a concentration of the first material increases continuously from an anode side of the graded emissive layer to a cathode side of the graded emissive layer, and a concentration of the second material decreases continuously from the anode side of the graded emissive layer to the cathode side of the graded emissive layer. An OLED device comprising a graded emissive layer and a hybrid white OLED device are also described.

Hybrid organic light emitting device

Growing community of inventors

Los Angeles, CA, United States of America

Muazzam Idris