Organic electroluminescent materials and devices
US12250872B2 · kind B2 · utility
0Cited by
33References
17Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 24, 2020 |
| Grant date | Mar 11, 2025 |
| Priority date | — |
| Expiry date | Feb 5, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K85/658
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Provided is a new composition of matter for phosphorescent emitters containing a chelating ligand comprised of a fused heterocyclic structure containing boron. The disclosed ligands form two bonds to the metal forming a 6-membered chelate and can be further substituted to form tridentate or tetradentate ligands.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.