Universal Display Corporation

Beijing Summer Sprout Technology Co. Ltd.

Seiko Epson Corporation

Other

Nippon Steel & Sumikin Chemical Co., Ltd.

University Display Corporation

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

Eric A Margulies

Ken-Tsung Wong

Ed Barron

Sonia Bajo

Montserrat Oliván

Ruiqing Ma

Qi Zhang

Siddharth Harikrishna Mohan

Geza Szigethy

Jun Deng

Woo-Young So

Glenn Morello

Michael Inbasekaran

Cuifang Zhang

Huiqing Pang

Tao Wang

Prashant Mandlik

Chi Hang Lee

Siu Tung Lam

Ana M Lopez

Zhihao Cui

Zhihong Dai

Nannan Lu

Lech Michalski

Ming-Cheng Kuo

Roberto Gomez Alabau

Jian Li

Feng Li

Shunichi Seki

Zhen Wang

Jerald Feldman

Liang Gao

Takahiro Kai

Toshihiro Yamamoto

Masahiro Uchida

Hongbo Li

Masaki Komori

Takuya Sonoyama

Mauro Premutico

Wei Cai

Le Wang

Kit Yee Tsang

Masaki Ito

Gregory S Kottas

Ainhoa San Torcuato

Kwang Ohk Cheon

Ming Sang

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 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.

Organic electroluminescent materials and devices

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.

Novel host compounds consisting of carbazole and nitrile groups are disclosed. These compounds are useful in phosphorescent OLEDs.

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.

Novel Iridium complexes having three different bidentate ligands useful for phosphorescent emitters in OLEDs are disclosed. At least one of the three different bidentate ligands is a carbene ligand.

A compound having the formula Ir(L)(L), having the structure of Formula I is provided. In the structure of Formula I, each of Athrough Ais independently carbon or nitrogen; at least one of Athrough Ais nitrogen; ring B is bonded to ring A through a C—C bond; the iridium is bonded to ring A through an Ir—C bond; X is O, S, or Se; each of Rthrough Rare independently selected from a variety of substituents, which may be linked for form a ring; n is an integer from 1 to 3; and at least one Radjacent to ring C is not hydrogen. Formulations and devices, such as OLEDs, that include the first compound are also provided.

This invention discloses iridium complexes containing phenylpyridine ligand wherein there is an aryl or heterocyclic ring fused into phenyl ring. The iridium complexes showed desired device performance.

Growing community of inventors

Lawrenceville, NJ, United States of America

Chuanjun Xia