Universal Display Corporation

Beijing Summer Sprout Technology Co. Ltd.

Seiko Epson Corporation

Other

Nippon Steel & Sumikin Chemical Co., Ltd.

University Display Corporation

Universal Display Corpration

Chuanjun Xia

Bin Ma

Lichang Zeng

Chun Lin

Walter H Yeager

Alexey Borisovich Dyatkin

Jui-Yi Tsai

Raymond Kwong

Pierre-Luc T Boudreault

Alan Deangelis

Bert Alleyne

Vadim Adamovich

Jason Brooks

James J Fiordeliso

Suman Layek

Zeinab M Elshenawy

Edward Barron

Zhiqiang Ji

Gregg Kottas

Harvey Wendt

Scott Joseph

Michael Stewart Weaver

Mingjuan Su

Nasrin Ansari

Scott A Beers

Ting-Chih Wang

Hitoshi Yamamoto

David Zenan Li

Kwang-Ohk Cheon

Miguel A Esteruelas

Dinesh Rayabarapu

Yonggang Wu

Chi Yuen Raymond Kwong

Enrique Oñate

Michael Stuart Weaver

James R Esler

Alan DeAngelis

Adrian U Palacios

Julia J Brown

Jun Deng

Eric A Margulies

Ken-Tsung Wong

Glenn Morello

Ed Barron

Sonia Bajo

Montserrat Oliván

Ruiqing Ma

Qi Zhang

Siddharth Harikrishna Mohan

Geza Szigethy

Woo-Young So

Cuifang Zhang

Michael Inbasekaran

Huiqing Pang

Ming-Cheng Kuo

Tao Wang

Prashant Mandlik

Chi Hang Lee

Siu Tung Lam

Ana M Lopez

Zhihao Cui

Zhihong Dai

Nannan Lu

Lech Michalski

Roberto Gomez Alabau

Jian Li

Feng Li

Zhen Wang

Shunichi Seki

Jerald Feldman

Liang Gao

Takahiro Kai

Toshihiro Yamamoto

Hongbo Li

Masahiro Uchida

Masaki Komori

Takuya Sonoyama

Le Wang

Mauro Premutico

Wei Cai

Kit Yee Tsang

Masaki Ito

Ming Sang

Gregory S Kottas

Ainhoa San Torcuato

Kwang Ohk Cheon

Daniel Gomez-Bautista

Yi-Tza Hung

Zeinab Elshenaway

Zeinab Elshenway

Montserrat Olivan

Enrique Oñate Rodriguez

Tamara Bolano

James Fiordelisio

Zeinab Eishenawy

Zhongxun Ma

Changqing Li

Menglan Xie

Beatriz Eguillor Armendariz

Miguel A Esteruelas Rodrigo

Novel compounds that contain azadibenzofuran, azadibenzothiophene, and azadibenzoselenophene with fused rings that can be used as a host material in phosphorescent OLEDs are disclosed.

Organic electroluminescent materials and devices

Novel organic compounds comprising a bicarbazole core are provided. In particular, the compounds has a 3,3'-bicarbazole core substituted at the 9-position with a triazine or pyrimidine. The compounds may be used in organic light emitting devices to provide devices having improved efficiency and improved lifetime.

Novel iridium complexes containing phenylpyridine and pyridyl aza-benzo fused ligands are described. These complexes are useful as light emitters when incorporated into OLEDs.

A compound comprising a heteroleptic iridium complex having a structure of Formula II, is provided. In Formula II, each of R, R, R, R, R, and R, is independently selected from the group consisting of hydrogen, deuterium, cycloalkyl, deuterated cycloalkyl, alkyl, and deuterated alkyl; at least one of R, R, R, R, R, and Ris not hydrogen or deuterium; and each R and R' is independently selected from a variety of substitutions. OLEDs and formulations containing the compound of Formula II are also provided.

Novel organometallic complexes having a structure of Formula (VI) that are useful in organic light emitting devices are disclosed.

Novel phosphorescent heteroleptic iridium complexes with phenylpyridine and dibenzo-containing ligands are provided. Alkyl substitution at specific positions on the ligands gives rise to compounds with improved OLED properties, including saturated green emission.

Heteroleptic iridium complexes as dopants

New organometallic complexes having bis- or tris-heteroleptic ligands and large aspect ratio in one direction and their use in OLEDs to enhance the efficiency is disclosed. Such compounds can have a structure of Formula III, where rings A, B, C, and D are ring; Land Leach a direct bond or a linking group; nand nare 0 or 1; if nor nis 1, then Lor Lis a direct bond or a linking group, and if nor nis 0, Lor Lis not present; Q, Q, Qand Qare a direct bond or oxygen; ring A is trans to ring D, ring B is trans to ring C in a square-planar coordination configuration; Mis Pt, and the compound comprises at least one Pt-carbene bond.

Tetradentate organic electroluminescent materials and devices

A compound having a Pt tetradentate structure of Formula 1, is provided. In the structure of Formula 1, rings C and D each independently represent 5- or 6-membered carbocyclic or heterocyclic ring; L, L, and Lare each independently a direct bond, BR, NR, PR, O, S, Se, C═O, S═O, SO, SiRR', GeRR′, alkyl, cycloalkyl, or a combination thereof; the sum of n1 and n2 is 1 or 2; X is selected from NR, O, S, and Se; Xand Xeach independently carbon or nitrogen; and one of Q, Q, and Qis oxygen, and the remaining two of Q, Q, and Qeach represents a direct bond. Formulations and devices, such as an OLEDs, that include the compound of Formula 1 are also described.

The present invention relates to novel light-emitting materials. These materials comprise a side chain that includes a fully deuterated or partially deuterated alkyl chain. This new side chain could improve device lifetime compared to nondeuterated side chains.

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.

Disclosed is a device that includes an emissive material or region including a host that is doped with a first material as an emitter that is an acceptor and a phosphorescent-capable second material as a sensitizer. The first material and the second material each has a first singlet state and a first triplet state. The first triplet state of the second material is not lower than the first triplet state of the first material. The second material transfers excitons to the first material and the excitons that transition to the first triplet state of the first material can be activated to the first singlet state of the first material through a thermal activation process.

Phosphorescence-sensitized delayed fluorescence light emitting system

Metal complexes containing azabenzothiazole are disclosed, which comprise a new series of ligands containing azabenzothiazole structure. The metal complexes can be used as emitters in the emissive layer of an organic electroluminescent device. The use of these novel metal complexes as emitters in OLED devices leads to more saturated color than the compounds containing benzothiazole ligands. An electroluminescent device and a formulation are also disclosed.

Metal complex containing azabenzothiazole

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

Organic materials containing dibenzofuran or aza-dibenzofuran moiety are disclosed in this application. These materials are expected to improve OLED device performance.

A compound is disclosed that has a metal coordination complex structure having at least two ligands coordinated to the metal; wherein the compound has a first substituent Rat one of the ligands' periphery; wherein a first distance is defined as the distance between the metal and one of the atoms in Rwhere that atom is the farthest away from the metal among the atoms in R; wherein the first distance is also longer than any other atom-to-metal distance between the metal and any other atoms in the compound; and wherein when a sphere having a radius r is defined whose center is at the metal and the radius r is the smallest radius that will allow the sphere to enclose all atoms in the compound that are not part of R, the first distance is longer than the radius r by at least 2.9 Å.

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Lawrenceville, NJ, United States of America

Chuanjun Xia