Iridium complex-containing composition, organic light emitting device having the same, display apparatus, imaging apparatus, electronic equipment, lighting apparatus, and moving body
US12075692B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 2021 |
| Grant date | Aug 27, 2024 |
| Priority date | — |
| Expiry date | Nov 13, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2101/10
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A composition that includes: a homo-N-trans (HNT) iridium complex having an iridium atom, and a first ligand, a second ligand, and a third ligand that are bonded to the iridium atom, the second ligand having the same structure as the first ligand, the third ligand having a different structure from the first and second ligands; and an isomer of the iridium complex, the isomer having an iridium atom, a fourth ligand, a fifth ligand, and the third ligand, the fourth ligand being a ligand represented by the same rational formula as that of the first ligand, and the fifth ligand being a ligand represented by the same rational formula as that of the second ligand. The composition ratio of the isomer relative to a total of the iridium complex and the isomer is 1.5% or more.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.