Universal Display Corporation

University of Southern California

Other

International Business Machines Corporation

University Display Corporation

Chun Lin

Chuanjun Xia

Jui-Yi Tsai

Zhiqiang Ji

Bin Ma

Alexey Borisovich Dyatkin

Walter H Yeager

Lichang Zeng

Robert W Walters

Raymond Kwong

Cory S Brown

Scott A Beers

Pierre-Luc T Boudreault

David B Knowles

Zeinab M Elshenawy

Peter Borden Mackenzie

Edward Barron

Peter B MacKenzie

Jason Brooks

Bert Alleyne

Jerald Feldman

Yonggang Wu

Nicholas John Thompson

Mingjuan Su

Mark Edward Thompson

Peter I Djurovich

Julia J Brown

Alan Deangelis

Cherie Renee Kagan

Scott Joseph

Jun Deng

James R Esler

Michael G Hack

Gregg Kottas

Tyler Fleetham

Hsiao-Fan Chen

Philip J Lin

Ting-Chih Wang

Eric A Margulies

Miguel A Esteruelas

Enrique Oñate

Thomas Lin

Adrian U Palacios

Montserrat Oliván

Jefferson Lin

Peter Borden MacKenzie

Sonia Bajo

Michael Stewart Weaver

Peter Wolohan

Ziu Eng Xu

Michael Stuart Weaver

Suman Layek

James J Fiordeliso

George Fitzgerald

Rasha Hamze

Mauro Premutico

Morgan C Macinnis

Daniel W Silverstein

Paul M Lahti

Sean Michael Ryno

Alan DeAngelis

Ruiqing Ma

Vadim Adamovich

Christopher Bruce Murray

Harvey Wendt

Michael Fusella

Arnold Tamayo

Morgan C MacInnis

Angang Dong

Aaron Thomas Fafarman

Kevin Hsu

Xingchen Ye

Tissa Sajoto

Elena Sheina

Gregory S Kottas

Hai T Le

Steven Kit Chow

Neetipalli Thrimurtulu

Zeinab Elshenway

Zhaoqun Zhou

Wu Yonggang

Gregory Mcgraw

Enrique OÑATE

Walter H Yaeger

Gregory Kottas

Borisovich Dyatkin

Metal complexes with cyclic ligands having Formula (I), are disclosed. Ligands with cyclic structure are believed to be beneficial to the rigidity and stability of the metal complexes, which is desirable for improving OLED device performance.

Organic electroluminescent materials and devices

A compound comprising a ligand Lcomprising a moiety L having a structure of Formula I is provided. In Formula I, Lcoordinated to a metal M; Ais selected from B, N, P, P═O, P═S, Al, Ga, SiR″, GeR″, and SnR″; where rings A, B, and C are 5- or 6-membered rings; Y, Y, and Yare selected from direct bonds, the metal M, and a variety of linkers; a+b+c=2 or 3; and one of a number of specific conditions is met. OLED devices, consumer products, and formulations including the compound are also provided.

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

The present invention discloses novel Pt(IV) compounds useful for enhancing the performance of organic electroluminescent devices.

Provided is an OLED that includes, sequentially: an anode; a first emissive region; and a cathode; wherein the first emissive region comprises: a first compound; and a second compound; wherein the first compound is capable of functioning as a perovskite emitter in an OLED; wherein the second compound is capable of functioning as an emitter in an OLED, wherein the second compound is selected from the group consisting of phosphorescent emitters, fluorescent emitters, and delayed fluorescent emitters.

A compound including a first ligand Lof is disclosed. In the structure of Formula I, one of Land Lis C, and the other is N; Yto Yare each C or N; at least two adjacent Y, Y, Y, and Yare carbon atoms that are fused to a structure of Zand Zare each O, S, Se, NR, CRR', or SiRR′; and each R, R′, R, R, R, and Ris hydrogen or a substituent; and any two substituents may be joined or fused together to form a ring. In the compound, Lis complexed to a metal M by Land L, and M has an atomic weight greater than 40. Organic light emitting devices and consumer products containing the compounds are also disclosed.

A compound having a structure of Formula I is disclosed, where at least one of Rand Rthat is ortho to a boron atom of Formula I comprises a structure selected from (9-carbazolyl)-carbazole, indolocarbazole, triphenylene, fluorene, dibenzothiophene, dibenzofuran, dibenzoselenophene, pyridine, pyrimidine, triazine, aza-triphenylene, aza-fluorene, aza-carbazole, aza-dibenzothiophene, aza-dibenzofuran, and aza-dibenzoselenophene.

Host materials for electroluminescent 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.

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.

A compound including a first ligand Lhaving a structure of Formula I is disclosed. The compound is useful a an emitter dopants in OLEDs for enhancing the OLED performance.

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.

Organic light emitting materials and devices comprising phosphorescent metal complexes comprising ligands comprising aryl or heteroaryl groups substituted at both ortho positions are described. An organic light emitting device, comprising: an anode, a hole transport layer; an organic emissive layer comprising an emissive layer host and an emissive dopant; an electron impeding layer, and electron transport layer, and a cathode disposed, in that order, over a substrate.

A composition formed of a mixture of two compounds having similar thermal evaporation properties that are pre-mixed into an evaporation source that can be used to co-evaporate the two compounds into an emission layer in OLEDs via vacuum thermal evaporation process is disclosed. The first and second compounds can have an evaporation temperature Tand T, respectively, of 150 to 350° C., and the absolute value of T-Tcan be less than 20° C. The first compound can have a concentration Cin the mixture and a concentration Cin a film formed by evaporating the mixture in a vacuum deposition tool at a constant pressure between 1×10Torr to 1×10Torr, at a 2 Å/sec deposition rate on a surface positioned at a predefined distance away from the mixture being evaporated, where the absolute value of (C−C)/Cis less than 5%.

An OLED is disclosed whose emissive layer has a first host and an emitter, where the emitter is a phosphorescent metal complex or a delayed fluorescent emitter, where E, the Ttriplet energy of the first host, is higher than E, the Ttriplet energy of the emitter, where Eis at least 2.50 eV, where the LUMO energy of the first host is higher than the HOMO energy of the emitter, where the absolute value of the difference between the HOMO energy of the emitter and the LUMO energy of the first host is ΔE1, where a≤ΔE1−E≤b; and where a≥0.05 eV, and b≤0.60 eV.

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Yardley, PA, United States of America

Chun Lin