4,4′-Bis(carbazol-9-yl)-biphenyl based silicone compound and organic electroluminescent device using the same
US7413817B2 · kind B2 · utility
4Cited by
2References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2004 |
| Grant date | Aug 19, 2008 |
| Priority date | — |
| Expiry date | Jul 21, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/917
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A 4,4′-Bis(carbazol-9-yl)-biphenyl (CBP) based silicone compound and an organic electroluminescent device using the CBP based silicon compound have excellent blue light emission characteristics and hole transfer capability. The CBP based silicon compound may be used as a blue light emission material or as a host material for various phosphorescent or fluorescent dopants emitting red, green, blue, or white light. Therefore, the organic electroluminescent device using the CBP based silicon compound has excellent characteristics such as a high efficiency, a high luminance, a long life span, and a low power consumption.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.