Red phosphorescent composition and organic electroluminescent device using the same
US9324958B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Feb 11, 2015 |
| Grant date | Apr 26, 2016 |
| Priority date | — |
| Expiry date | Feb 11, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/917
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A red phosphorescent compound includes a host material being capable of transporting an electron or a hole; and a dopant material represented by following Formula 1:wherein theis one ofand each of R1 to R4 is one of the group consisting of hydrogen atom (H), C1 to C6 substituted or non-substituted alkyl group, C1 to C6 substituted or non-substituted alkoxy group, and halogen atom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.