Organic electroluminescent materials and devices
US10991896B2 · kind B2 · utility
1Cited by
47References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2018 |
| Grant date | Apr 27, 2021 |
| Priority date | — |
| Expiry date | Dec 9, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/549
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A compound having an ancillary ligand L1 having the formula: Formula I is disclosed. The ligand L1 is coordinated to a metal M having an atomic number greater than 40, and two adjacent substituents are optionally joined to form into a ring. Such compound is suitable for use as emitters in organic light emitting devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.