Organic electroluminescent materials and devices
US9947880B2 · kind B2 · utility
1Cited by
38References
20Claims
0Family size
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Key dates
| Filing date | Oct 7, 2014 |
| Grant date | Apr 17, 2018 |
| Priority date | — |
| Expiry date | Jul 22, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/917
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Novel phosphorescent tetradentate platinum (II) compounds comprising a twisted aryl group are provided. Also provided are novel phosphorescent tetradentate platinum (II) compounds comprising an imidazo[1,2-f]phenanthridine moiety. The compounds may be used in organic light emitting devices to provide improved device efficiency, line shape and lifetime.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.