Organic electroluminescent device
US10497876B2 · kind B2 · utility
1Cited by
3References
20Claims
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Key dates
| Filing date | Dec 16, 2015 |
| Grant date | Dec 3, 2019 |
| Priority date | — |
| Expiry date | Aug 2, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K85/6576
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
In the organic electroluminescent device having at least an anode, a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer and a cathode in this order, the hole injection layer includes an arylamine compound of the following general formula (1) and an electron acceptor.In the formula, Ar1 to Ar4 may be the same or different, and represent a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, or a substituted or unsubstituted condensed polycyclic aromatic group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.