Diamine hole transport agent and organic electroluminescent device containing same
US6337404B1 · kind B1 · utility
18Cited by
0References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 16, 1999 |
| Grant date | Jan 8, 2002 |
| Priority date | — |
| Expiry date | Dec 16, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/917
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A novel diamine compound of formula (I) of the present invention having a high glass transition temperature is useful as an improved hole transport agent, and an organic electroluminescent device containing the diamine compound of formula (I) has good thermal and mechanical stabilities, and prolonged lifetime.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.