Material for organic electroluminescence device and organic electroluminescence device utilizing the same
US8114530B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2007 |
| Grant date | Feb 14, 2012 |
| Priority date | — |
| Expiry date | May 12, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/917
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided is a material containing at least one phosphorescent metal complex, and a compound represented by the following formula (1):wherein at least one of R1 to R3 is a 9-carbazolyl group which is optionally substituted or an azacarbazolyl group having 2 to 5 nitrogen atoms which is optionally substituted. The material for the organic electroluminescence device may be used as a host material or a hole transporting material. Also provided is an organic electroluminescence device which has an organic thin film layer that contains the material, and exhibits a high emitting efficiency, causes little pixel defects, is excellent in heat resistance, and has a long lifetime.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.