Universal Display Corporation

Lichang Zeng

Chuanjun Xia

Alexey Borisovich Dyatkin

Zhiqiang Ji

Walter H Yeager

Chun Lin

Bin Ma

Jui-Yi Tsai

Edward Barron

Mingjuan Su

Vadim Adamovich

Suman Layek

Gregg Kottas

Zeinab M Elshenawy

Ting-Chih Wang

Eric A Margulies

Pierre-Luc T Boudreault

Michael Stewart Weaver

Scott Joseph

Alan Deangelis

Alan DeAngelis

Julia J Brown

Michael Stuart Weaver

Kwang-Ohk Cheon

Bert Alleyne

Harvey Wendt

David Zenan Li

Paul M Lahti

Jerald Feldman

Scott A Beers

Peter Wolohan

Hitoshi Yamamoto

George Fitzgerald

Yonggang Wu

Daniel W Silverstein

Zeinab Elshenaway

Ting-Chih (Carina) Wang

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

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.

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 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.

An OLED including an anode, a cathode, and an organic layer between the anode and the cathode, where the organic layer includes a compound having the formula [L]Ir[L]is disclosed. In the formula, Lis

A compound comprising a ligand L, having a structure of Formula I, is provided. In Formula I, Ato Aare each independently CR or N; at least two adjacent ones of Ato Aare CR and the Rs are joined together to form a six-membered ring fused to ring A or ring C; X is O, S, or Se; each R and Ris independently hydrogen or a substituent; any adjacent substituents are optionally joined or fused into a ring; the ligand Lis coordinated to a metal M; the metal M is bonded to ring A through a M-C bond; the metal M can be coordinated to other ligands; and the ligand Lis optionally linked with other ligands. Formulations, OLEDs, and consumer products containing such compounds are also disclosed.

A compound having the formula: Formula I is disclosed. The compound is useful as emitters in OLEDs.

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

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.

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 &#x212b;.

Ligands with fused spirocyclic substitutions and metal complexes formed with such ligands and having improved performance in OLED applications are disclosed.

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Lawrenceville, NJ, United States of America

Lichang Zeng