Universal Display Corporation

E.i. Dupont De Nemours and Company

The University of North Carolina at Chapel Hill

Other

Jerald Feldman

Zhiqiang Ji

Stephan James McLain

Jui-Yi Tsai

Alexey Borisovich Dyatkin

Tyler Fleetham

Pierre-Luc T Boudreault

Chun Lin

Nicholas John Thompson

Peter Wolohan

Lynda Kaye Johnson

Hsiao-Fan Chen

Edward Bryan Coughlin

Anju Parthasarathy

Andrew Edward Feiring

Steven Dale Ittel

Ying Wang

Frank L Schadt, Iii

Kristina Ann Kreutzer

Alison Margaret Anne Bennett

Alison Margaret Bennett

Bin Ma

Nora Sabina Radu

Samuel David Arthur

Adam Fennimore

Maurice S Brookhart

George Fitzgerald

Eric A Margulies

Kerwin D Dobbs

Morgan C Macinnis

Daniel W Silverstein

Charles D McLaren

Sean Michael Ryno

Norman Herron

Christopher Moore Killian

Weiying Gao

Lin Wang

Vsevolod Rostovtsev

Michael Henry Howard, Jr

Elizabeth Forrester McCord

Weishi Wu

Rasha Hamze

Tongxiang (Aaron) Lu

Daniel Joseph Tempel

Jason Brooks

Michael Stuart Weaver

Viacheslav Alexandrovich Petrov

Alan Deangelis

Wilson Tam

Daniel David Lecloux

Mingjuan Su

Geza Szigethy

Wei-Chun Shih

Yueli Wang

Fredrick Claus Zumsteg, Jr

Dennis S Donald

Elisabeth Muriel Hauptman

Robert D Simpson

Xing Shen

Lissa Taka Nelson

Marcia B France

Chuanjun Xia

Walter H Yeager

Lichang Zeng

Julia J Brown

Vadim Adamovich

Bert Alleyne

Robert John Barsotti

William Brown Farnham

Suman Layek

Eric Maurice Smith

Zhen-Yu Yang

Ting-Chih Wang

Woo-Young So

Gene M Rossi

Gary N Taylor

James William O'Neil

Kalindi Dogra

Charles D Lang

Frederick P Gentry

Morgan C MacInnis

Larry L Berger

Tongxiang Lu

Michael Karl Crawford

William A Nugent, Jr

Paul Anthony Sant

Noah Horwitz

Troy C Gehret

Diana Drennan

Giang Dong Vo

Siddhartha Shenoy

Elena Sheina

Christina M Older

Andrew Edward Fiering

Frank Leonard Schadt Iii

Provided are compounds of formula Ir(L)(L), where m and n are each independently 1 or 2; and m+n=3; where Lhas a structure of Formula I and Lhas a structure of Formula II that are useful as emitters in OLEDs. Also provided are formulations comprising these compounds. Further provided are OLEDs and related consumer products that utilize these compounds.

Organic electroluminescent materials and devices

Provided are boron-containing compounds. Also provided are formulations comprising these boron-containing compounds. Further provided are OLEDs and related consumer products that utilize these boron-containing compounds.

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.

Provided is a new composition of matter for phosphorescent emitters containing a chelating ligand comprised of a fused heterocyclic structure containing boron. The disclosed ligands form two bonds to the metal forming a 6-membered chelate and can be further substituted to form tridentate or tetradentate ligands.

A compound having a structure of Formula I In Formula I, M is Pd or Pt; each of Xto Xis independently C or N; ring A is a 5-membered or 6-membered ring; Kand Kare selected from a direct bond, O, S, and NR; Lis an organic linker; Yis selected from O, S, BR, PR, Se and NR; each R, R, R, R, R, and Ris hydrogen or a substituent; and any two substituents can be joined or fused to form a ring. Further provided are OLEDs and related consumer products that utilize these compounds.

Provided are novel organic compounds having a structure of Formula I: Also provided are formulations having these organic compounds. Further provided are OLEDs and related consumer products that utilize these organic compounds.

Provided is an OLED structure includes an organic layer having a primary phosphorescent emitter and a first host; where one of the following conditions is true: (1) the organic layer further includes a secondary emitter; or (2) the OLED further includes a second organic layer where the second organic layer includes a secondary emitter. The primary phosphorescent emitter has a peak emission wavelength λmax that is ≥600 nm and ≤750 nm; the secondary emitter has a peak emission wavelength λmax that is ≥750 nm; the primary phosphorescent emitter is capable of transferring energy to the secondary emitter; the first host has a lowest excited state triplet energy T1 that is at least 0.1 eV higher than that of the primary phosphorescent emitter; the primary phosphorescent emitter has the formula Pt(L); Lcan represent one or more ligands that are the same or different; each Lis independently monodentate or multidentate; and m represents a maximum possible number of ligands Lthat can coordinate to Pt.

Organic electroluminescent devices

Provided are novel C-symmetry high Tenergy host compounds. Also provided are formulations comprising these novel C-symmetry high Tenergy host compounds. Further provided are OLEDs and related consumer products that utilize these novel C-symmetry high Tenergy host compounds. The novel host compounds are represented by where the variables are defined herein.

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.

Compounds that are organic radicals that can have a dual function. The compounds can be fluorescent emitters that emit in the near-IR. The compounds can also facilitate reverse intersystem crossing (RISC) to convert triplet excitons in an OLED to singlet excited states to maximize utilization of generated excitons in the OLED and approach 100% internal quantum efficiency.

Provided is a new composition of matter for phosphorescent emitters containing a chelating ligand including five or more fused carbocyclic or heterocyclic rings that form two bonds to a metal forming a 7-membered chelate. This fused ring structure provides added rigidity to the molecule for enhanced stability in an OLED device and improve photophysical properties.

An OLED structure including a first organic layer disposed between the anode and the cathode is disclosed. The first organic layer includes a primary phosphorescent emitter and a first host, and where one of the following conditions is true: (1) the first organic layer further includes a secondary emitter; or (2) the OLED further includes a second organic layer disposed between the anode and the cathode, wherein the second organic layer includes a secondary emitter. The phosphorescent emitter has a peak emission wavelength λmax that is ≥600 nm and ≤750 nm, the secondary emitter has a peak emission wavelength λmax that is ≥750 nm, and the first host has a lowest excited state triplet energy T1 that is at least 0.1 eV higher than that of the primary phosphorescent emitter.

Growing community of inventors

Wilmington, DE, United States of America

Jerald Feldman