Organic electroluminescent device
US10069091B2 · kind B2 · utility
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Key dates
| Filing date | Aug 26, 2014 |
| Grant date | Sep 4, 2018 |
| Priority date | — |
| Expiry date | Dec 7, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/917
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An organic electroluminescent device including at least one organic layer between a pair of electrodes, wherein the at least one organic layer includes a luminescent layer, at least one layer of the at least one organic layer includes at least one metal complex containing a tri- or higher-dentate ligand, and a compound represented by formula (I) is contained in an organic layer containing the metal complex and/or in other organic layer(s). In formula (I), R11 to R14 each independently represent a hydrogen atom or a substituent group, and at least one of R11 to R14 represents an aryl or heteroaryl group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.