US 2017/0288154 A1 · LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, ELECTRONIC DEVICE, AND LIGHTING DEVICE

Abstract

A novel organometallic complex with high reliability is provided. A light-emitting element includes an EL layer between a pair of electrodes. The EL layer includes at least a light-emitting layer. The light-emitting layer contains an organometallic complex. The organometallic complex includes a first ligand and a second ligand which are coordinated to a central metal. The HOMO is distributed over the first ligand, and the LUMO is distributed over the second ligand. The first ligand and the second ligand are cyclometalated ligands.

Claims26

Dependent claims

A light-emitting element comprising an EL layer between a pair of electrodes,

wherein the EL layer includes at least a light-emitting layer,
wherein the light-emitting layer includes an organometallic complex,
wherein the organometallic complex includes a first ligand and a second ligand coordinated to a central metal,
wherein the first ligand has a HOMO and the second ligand has a LUMO, and
wherein the first ligand and the second ligand are cyclometalated ligands.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

15/471,017Filed 28 Mar 2017

Priority

JP 2016-0744891 Apr 2016

Published

5 Oct 2017

Term ends

Not estimatedThe source records don’t support an estimate.

Classification15 codes

H10K 85/342
Transition metal complexes, e.g. Rupolypyridine complexes: comprising iridium
C07F 15/0033
Compounds of the platinum group: iridium compounds
C07F 15/004
Iridium compounds: without a metal-carbon linkage
C09K 11/06
Luminescent materials, e.g. electroluminescent or chemiluminescent: containing organic luminescent materials

Light-emitting element, light-emitting device, electronic device, and lighting device

Life of this patent

Light-emitting element, light-emitting device, electronic device, and lighting device

Life of this patent

Abstract

Claims26