Organic electroluminescence device
US8609257B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2010 |
| Grant date | Dec 17, 2013 |
| Priority date | — |
| Expiry date | Jul 30, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2101/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The organic electroluminescence device has, on a substrate thereof, a pair of electrodes and at least one organic layer including a light emitting layer between the electrodes, wherein the light emitting layer contains a phosphorescent complex material containing a specific monoanionic bidentate ligand and the device contains, in a layer sandwiched between the light emitting layer and a cathode, a compound represented by the following formula (1):(Cz)p-L-(A)q (1)wherein, Cz represents a substituted or unsubstituted arylcarbazolyl or carbazolylaryl, L represents a single bond or a substituted or unsubstituted arylene, cycloalkylene, or aromatic heterocycle, A represents a substituted or unsubstituted nitrogen-containing 6-membered aromatic heterocycle, and each of p and q independently represents an integer from 1 to 6.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.