Dopant in an electroluminescent device
US6828044B2 · kind B2 · utility
8Cited by
3References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 25, 2002 |
| Grant date | Dec 7, 2004 |
| Priority date | — |
| Expiry date | Oct 25, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/917
Abstract
Disclosed is an organic light emitting diode device containing a light emitting layer (LEL) comprising a host and a blue light emitting dopant wherein the dopant comprises a 2-(3-aminophenyl)-benzofuran or 2-(4-aminophenyl)-benzofuran compound. The dopant provides improved luminance and luminance yield.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.