Phosphorescent emitters and host materials with improved stability
US8586204B2 · kind B2 · utility
37Cited by
19References
4Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 26, 2010 |
| Grant date | Nov 19, 2013 |
| Priority date | — |
| Expiry date | Nov 22, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2102/103
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Devices containing a particular combination of organic compounds are provided. In particular, the devices contain twisted aryl compounds having extended conjugation (i.e., the twisted aryl is substituted with an additional aryl group) in combination with dibenzothiophene or dibenzofuran containing host materials. The organic light emitting devices may provide improved stability color, lifetime and manufacturing. Compounds containing a twisted aryl having extended conjugation are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.