Eastman-kodak Company

Global Oled Technology LLC

Joseph C Deaton

Xin Wen

Myra T Olm

Donald L Black

Richard L Daubendiek

Robert D Wilson

Timothy R Gersey

Joseph G Lighthouse

Shouquan Huo

Christopher T Brown

David J Giesen

Marina E Kondakova

Richard L Parton

Barbara Boland Lussier

Allan Francis Sowinski

Margaret Jones Helber

William J Harrison

David E Fenton

Xiaofan Ren

David W Place

Tukaram K Hatwar

William J Begley

Yuan-Sheng Tyan

Douglas Robert Robello

Kevin P Klubek

Jianmin Shi

Steven A Van Slyke

J Ramon Vargas

Thomas L Penner

Natasha Andrievsky

Allen K Tsaur

Kenneth James Lushington

Denis Y Kondakov

Giuseppe Farruggia

Joel D Shore

Zbyslaw R Owczarczyk

Lyn M Eshelman

Sharon G Johnston

Michael G Antoniades

Frederick Charles Derks

Paul J Madigan

Richard Eisenberg

Ming Jye Lin

David A Dumont

An OLED device comprises a cathode, an anode, and located therebetween a light-emitting layer containing a host material and a tris-C^N-cyclometallated complex of Ir or Rh wherein at least one of the ligands comprises a substituted quinazoline moiety. The device provides useful emission and stability attributes.

Electroluminescent device with quinazoline complex emitter

An OLED device including a cathode, an anode, and having therebetween a phosphorescent light-emitting layer that contains a light-emitting organometallic complex including a precious metal, a first ligand including an imidazole group and a second nitrogen heterocycle group, and at least one second different ligand.

Emitting complex for electroluminescent devices

An OLED device comprising, in sequence, an anode, a light-emitting layer that comprises a phosphorescent light-emitting organometallic compound, a hole-blocking layer, and a cathode, and between the hole-blocking layer and the cathode, a further layer containing a mixture of a first compound that is a tetracene compound that has the lowest LUMO value of the compounds in the layer, in an amount greater than or equal to 10% and less than 90% and a second compound that is a low voltage electron transport material, exhibiting a higher LUMO value than the first compound in an amount less than or equal to 90% and more than 10%.

Phosphorescent OLED with mixed electron transport materials

The invention provides an OLED device comprising a cathode, an anode, and having therebetween a layer containing an acridone compound including a diarylamine or carbazole substituent where the nitrogen of the acridone and the nitrogen of the diarylamine or carbazole are connected by an aromatic hydrocarbon linking group. OLED devices of the invention exhibit improved efficiency and drive voltage.

OLED device with substituted acridone compounds

An organic light emitting device contains a cathode, an anode, and has located there-between a light emitting layer, comprising co-hosts including a hole transporting compound and a particular aluminum chelate, together with at least one light emitting Iridium compound, wherein the Iridium compound is a tris C^N-cyclometallated complex with a triplet energy less than or equal to the triplet energy of each of the co-hosts.

Organic electroluminescent devices and composition

An electroluminescent device comprises a cathode and an anode; and, located therebetween, a light-emitting layer (LEL) comprising at least one hole transporting co-host and at least one electron transporting co-host, together with at least one phosphorescent emitter, and wherein the triplet energy of each of the co-host materials is greater than the triplet energy of the phosphorescent emitter, and further containing an exciton blocking layer comprising a hole transporting material with triplet energy greater or equal to 2.5 eV adjacent the emitting layer on the anode side. The invention provides devices that emit light with high luminous efficiency at low voltage.

Phosphorescent OLEDs with exciton blocking layer

An OLED device contains a layer comprising a hole transporting compound, a certain type of oxinoid compound, and a light emitting phosphorescent compound.

Organic element for electroluminescent devices

A process for forming a facial tris-cyclometallated iridium or rhodium complex isomer comprises heating an original solid composition containing meridional isomer of the metal complex at a temperature and for a time sufficient to form a product containing the facial isomer in an increased ratio to meridional isomer compared to the original composition.

Isomerization of tris-cyclometallated iridium complexes

An OLED device comprises a cathode, an anode, and located therebetween a light emitting layer containing a compound represented by formula (I):A-M-B&#x2003;&#x2003;(I)wherein wherein

Phosphorescent iridium complexes

An OLED device comprises an anode, a cathode and therebetween a light emitting layer containing a compound represented by Formula I below: wherein: 

OLED devices with dinuclear copper compounds

A process for forming a tris-cyclometallated complex comprises the step of reacting;

Synthesis of organometallic cyclometallated transition metal complexes

Disclosed is an electroluminescent device comprising a light-emitting layer including a light emitting material that contains an organometallic complex comprising (1) a metal selected from the group consisting of Ir, Rh, Os, Pt, and Pd and (2) a diazole group ligand wherein the ligand has a fused aromatic ring group including a nitrogen of the diazole as a bridgehead nitrogen. The device provides useful light emission.

An electroluminescent device comprises a light-emitting layer containing a light emitting phosphorescent material that contains an organometallic complex comprising iridium fully complexed with indole ligand groups or comprising Ir, Rh, Os, Ru, Pt, and Pd and an isoindole compound. The invention further comprises compositions of certain such complexes as well as a display or area lighting devices and a process for emitting light. The organometallic materials function as useful phosphorescent light emitting materials in electroluminescent devices.

Disclosed is an electroluminescent device comprising a light-emitting layer containing a phosphorescent light emitting material that contains an organometallic complex comprising a metal selected from the group consisting of Ir, Rh, Os, Pt, and Pd and a pyrazole compound fused with at least one aromatic ring. The device provides useful light emissions.

Disclosed is a useful electroluminescent device comprising a cathode, an anode, and therebetween a light emitting layer containing a host material and a phosphorescent light-emitting material wherein the host material is represented by formula (1):X'-A-X&#x2033;&#x2003;&#x2003;(1)wherein:

Growing community of inventors

Rochester, NY, United States of America

Joseph C Deaton