Organic electroluminescence device
US9324950B2 · kind B2 · utility
12Cited by
3References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2011 |
| Grant date | Apr 26, 2016 |
| Priority date | — |
| Expiry date | Nov 22, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2101/40
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An organic electroluminescence device that includes an anode, an emitting layer that includes a host and a fluorescent dopant, an electron transporting zone, a cathode, a blocking layer adjacent to the emitting layer in the electron transporting zone where the blocking layer includes an aromatic heterocyclic derivative with an azine ring and where the triplet energy ETb (eV) of the aromatic heterocyclic derivative is larger than a triplet energy ETh (eV) of the host.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.