Organic electroluminescent materials and devices
US9783564B2 · kind B2 · utility
9Cited by
38References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 17, 2012 |
| Grant date | Oct 10, 2017 |
| Priority date | — |
| Expiry date | Dec 21, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2101/10
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Novel phosphorescent tetradentate platinum compounds of Formula I are provided. The complexes contain a dibenzo moiety, which allows for the creation of OLED devices with improved properties when compounds of Formula I are incorporated into such devices. Compounds of Formula I′ that comprise two ligands that contain a 5-membered carbocyclic or heterocyclic ring, one of which contains an imidazole ring with a twisted aryl group attached to N−1 and a second aromatic ring that is attached to the platinum via a carbon atom. These compounds may be advantageously used in OLEDs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.