Organic electroluminescent materials and devices
US10008678B2 · kind B2 · utility
2Cited by
33References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2014 |
| Grant date | Jun 26, 2018 |
| Priority date | — |
| Expiry date | Jan 22, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2101/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Imidazo[1,2-f]phenanthridine compounds are provided. The compounds have a twisted aryl moiety further substituted by alkyl having four or more atoms. The compounds may be used in organic light emitting devices, particularly as emissive dopants, providing devices with improved efficiency, stability, and manufacturing. In particular, the compounds provided herein may be used in blue devices having high efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.