Organic electroluminescent element
US8710493B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 23, 2011 |
| Grant date | Apr 29, 2014 |
| Priority date | — |
| Expiry date | Jul 28, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2101/10
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An organic electroluminescence device includes an anode, a cathode and layers between the anode and the cathode, the layers at least including a hole transporting layer, a first emitting layer, a second emitting layer and an electron transporting layer, in which the first emitting layer includes a first host material and a first luminescent material and the second emitting layer is continuously formed on the first emitting layer near the cathode and includes a second host material and a second luminescent material. The second host material is a monoazine derivative, a diazine derivative, or a triazine derivative. The first and second luminescent materials are different metal complexes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.