Organic electroluminescent materials and devices
US10381580B2 · kind B2 · utility
4Cited by
41References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 3, 2018 |
| Grant date | Aug 13, 2019 |
| Priority date | — |
| Expiry date | Jan 3, 2038 |
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.