Universal Display Corporation

University of Southern California

Princeton University

Hodogaya Chemical Co., Ltd.

Nippon Steel & Sumikin Chemical Co., Ltd.

Vadim Adamovich

Chuanjun Xia

Michael Stewart Weaver

Bin Ma

Michael Stuart Weaver

Bert Alleyne

Alan Deangelis

Raymond Kwong

Lichang Zeng

Ting-Chih Wang

Pierre-Luc T Boudreault

Hitoshi Yamamoto

Alexey Borisovich Dyatkin

James J Fiordeliso

Walter H Yeager

Mark Edward Thompson

Nicholas John Thompson

Michael G Hack

Scott Joseph

Suman Layek

Nasrin Ansari

Brian D'Andrade

Dinesh Rayabarapu

Stephen R Forrest

Harvey Wendt

Peter I Djurovich

Gregg Kottas

Zeinab M Elshenawy

Edward Barron

David Zenan Li

Jason Brooks

Julia J Brown

Scott A Beers

Xiaofan Ren

Marc A Baldo

Chihaya Adachi

Sergey Lamansky

Lech Michalski

Jui-Yi Tsai

Zhiqiang Ji

Mingjuan Su

Arnold Tamayo

James R Esler

Steven R Cordero

Chun Lin

Paul E Burrows

Jerald Feldman

Norimasa Yokoyama

Takahiro Kai

Siddharth Harikrishna Mohan

Toshihiro Yamamoto

Naoaki Kabasawa

Xin Xu

Eric A Margulies

Makoto Nagaoka

Masaki Komori

Yonggang Wu

Min-Hao Michael Lu

Andrei Shoustikov

Michael O'Connor

Ting-Chih (Carina) Wang

Raymond C Kwong

Full-color pixel arrangements for use in devices such as OLED displays are provided, in which multiple sub-pixels are configured to emit different colors of light, with each sub-pixel having a different optical path length than some or all of the other sub-pixels within the pixel.

Organic electroluminescent devices

A composition comprising a first compound and a second compound, wherein the first compound has a formula selected from the group consisting of wherein the second compound has the formula is disclosed.

Organic electroluminescent materials and devices

A dual host system for OLEDs that contains hole-transporting indolocarbazole and electron-transporting indolocarbazole exhibiting superior performance in the OLEDs is disclosed.

A compound of: is disclosed. In Formula III, ring B and ring C are each independently a 5 or 6-membered carbocyclic or heterocyclic ring; A-B represents a bonded pair of carbocyclic or heterocyclic rings coordinated to a metal M via a nitrogen atom in ring A and an sphybridized atom in ring B; A-C represents a bonded pair of carbocyclic or heterocyclic rings; M is a metal having an atomic number greater than 40; L' is a monoanionic bidentate ligand; m is the oxidation state of the metal M; and n is at least 1.

A composition is disclosed that includes a first compound capable of functioning as a host in an emissive layer of an OLED at room temperature; and a second compound that includes a ligand Lof Formula III or Formula V disclosed herein.

Host materials for electroluminescent devices

Full-color OLED display

A compound having the formula Ir(L)(L)is disclosed wherein Lis an aza-DBF ligand and Lis an alkyl-substituted phenylpyridine ligand, wherein the compound has a structure according to Formula I: wherein each of Ato Acomprise carbon or nitrogen; wherein at least one of Ato Ais nitrogen; wherein ring B is bonded to ring A through a C—C bond; wherein the iridium is bonded to ring A through a Ir—C bond; wherein X is O, S, or Se; wherein R' and R″ each independently represent mono-, di-substitution, or no substitution; wherein any adjacent substitutions in R′, R″, R, R, R, R, R, and Rare optionally linked together to form a ring; wherein R, R, R′, and R″ are each independently selected from a variety of substituents; wherein R, R, R, and Rare each independently selected from the group consisting of hydrogen, deuterium, alkyl, cycloalkyl, and combinations thereof; wherein n is an integer from 1 to 3; and wherein total number of carbons in at least one of the pairs Rand R, and Rand Ris at least four.

An organic light emitting diode (OLED) architecture in which efficient operation is achieved without requiring a blocking layer by locating the recombination zone close to the hole transport side of the emissive layer. Aryl-based hosts and Ir-based dopants with suitable concentrations result in an efficient phosphorescent OLED structure. Previously, blocking layer utilization in phosphorescent OLED architectures was considered essential to avoid exciton and hole leakage from the emissive layer, and thus keep the recombination zone inside the emissive layer to provide high device efficiency and a pure emission spectrum.

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.

A composition of materials including a first compound having a structure according to Formula I

A novel compound selected from is disclosed.

A compound that has the structure according to Formula M(L)(L)(L)is disclosed. In Formula M(L)(L)(L), ligand Lis ligand Lis and ligand Lis and OLEDs and formulations containing these compounds are disclosed. In Formula M(L)(L)(L); M is a metal; x is 1 or 2; X-Xand A-Aare C or N; at least one of A-Ais N; X is O, S, or Se; two adjacent Rform a six-member aromatic ring E fused to ring B; and each R-Rand RRis independently hydrogen or a substituent.

The present invention relates in part to compounds containing indolocarbazole and terphenyl building blocks. These compounds are useful for application in organic electroluminescent devices wherein the combination of indolocarbazoles with terphenyl groups leads to novel compounds that demonstrate superior device performance.

A compound useful as a host material in phosphorescent light emitting devices is disclosed. The compound has the following formula: in which R represents an adjacent di-substitution having the following formula fused to ring A:

Growing community of inventors

Yardley, PA, United States of America

Vadim Adamovich