Organic electroluminescent materials and devices
US11201298B2 · kind B2 · utility
2Cited by
31References
20Claims
0Family size
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Key dates
| Filing date | Dec 15, 2017 |
| Grant date | Dec 14, 2021 |
| Priority date | — |
| Expiry date | Mar 31, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/549
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Ligands for metal complexes that are useful as phosphorescent emitters in OLEDs are disclosed. The ligands contain an aryl group covalently bonded to the coordinating metal. The aryl group has a cycloalkyl or a substituted cycloalkyl that is linked para to the linkage of the coordinating metal on that aryl group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.