Universal Display Corporation

Wyeth

Other

David Zenan Li

Chuanjun Xia

James J Fiordeliso

Alexey Borisovich Dyatkin

Bin Ma

Bert Alleyne

Hassan Mahmoud Elokdah

Pierre-Luc T Boudreault

Vadim Adamovich

Scott Joseph

Hitoshi Yamamoto

Gregg Kottas

Alan Deangelis

Geraldine Ruth McFarlane

Walter H Yeager

Jason Brooks

Michael Stewart Weaver

Suman Layek

Zeinab M Elshenawy

Ed Barron

Lichang Zeng

Ronald Charles Bernotas

Lee Dalton Jennings

David LeRoy Crandall

Steven Edward Lenicek

Hassan Mahmound Elokdah

Michael Stuart Weaver

James Fiordelisio

A compound having an ancillary ligand Lhaving the formula: Formula I is disclosed. The ligand Lis coordinated to a metal M having an atomic number greater than 40, and two adjacent substituents are optionally joined to form into a ring. Such compound is suitable for use as emitters in organic light emitting devices.

Organic electroluminescent materials and devices

Compounds are provided that comprise a ligand having a 5-substituted 2-phenylquinoline. In particular, the 2-phenylquinoline may be substituted with a cycloalkyl containing group at the 5-position. These compounds may be used in organic light emitting devices, in particular as red emitters in the emissive layer of such devices, to provide devices having improved properties.

Materials for organic light emitting diodes

Novel phosphorescent tetradentate platinum (II) compounds comprising a twisted aryl group are provided. Also provided are novel phosphorescent tetradentate platinum (II) compounds comprising an imidazo[1,2-f]phenanthridine moiety. The compounds may be used in organic light emitting devices to provide improved device efficiency, line shape and lifetime.

Materials for organic light emitting diode

A novel compound based on aza- and diazodibenzofurans; aza- and diaza dibenzothiophenes, such as benzothieno- and benzofuropyrimidines as well as benzothieno- and benzofuropyrazines useful for electron-transporting host material in green, red, yellow, and white phosphorescent emitting devices is disclosed.

Organic materials for OLEDs

Aluminum chelate complex compounds with two substituted 8-hydroxyquinoline ligand and one dibenzothiophene, dibenzofuran or dibenzoselenophene ligands or aza-analogs of these molecules, attached directly or through an aromatic spacer to the oxygen atom is provided to improve lifetime, operating voltage and efficiency of an OLED. Additional substitution of dibenzothiophene or dibenzofuran ring may also provide charge delocalization, HOMO modification and higher Tg.

The present invention relates to metal complexes having novel ligands. The compounds are useful in organic light emitting devices (OLEDs), particularly as emitting dopants. The incorporation of these novel ligands provides red phosphorescent materials with good external quantum efficiency, good color, and long lifetime.

The present disclosure provides novel compounds based on azadibenzothiophenes, azadibenzofurans and azadibenzoselenophenes with at least two nitrogen atoms in the aza rings. The compounds can be used in green, red, yellow and white emitting devices as electron-transporting hosts.

Tetradentate platinum complexes

Novel aryl silicon and aryl germanium host materials are described. These compounds improve OLED device performance when used as hosts in the emissive layer of the OLED.

Host materials for phosphorescent OLEDs

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Princeton, NJ, United States of America

David Zenan Li