Difluoropyridine-based compound and organic electroluminescent device using the same
US7582366B2 · kind B2 · utility
7Cited by
2References
15Claims
0Family size
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Key dates
| Filing date | Mar 16, 2006 |
| Grant date | Sep 1, 2009 |
| Priority date | — |
| Expiry date | Jul 12, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/917
Abstract
A difluoropyridine-based compound includes at least one difluoropyridine group in its molecule. The difluoropyridine-based compound may be used as an electron injection material, an electron transport material, or a hole blocking material in full-color fluorescent or phosphorescent devices. The difluoropyridine-based compound has good electrical characteristics and a high charge transport capability. The difluoropyridine-based compound may be used to produce an organic electroluminescent device with high efficiency, low voltage, improved brightness, and a long life expectancy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.