Electroluminescent devices comprising diketopyrrolopyrroles
US7060843B1 · kind B1 · utility
4Cited by
5References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 8, 2000 |
| Grant date | Jun 13, 2006 |
| Priority date | — |
| Expiry date | Sep 5, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/917
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Electroluminescent device comprising in this order(a) an anode(b) a hole transporting layer(c) a light-emitting layer(d) optionally an electron transporting layer and(e) a cathode and a light-emitting substance, wherein the light-emitting substance is a diketopyrrolopyrrole represented by formula I or formula IIIprocesses for the preparation of compounds I, its uses and compositions comprising the compounds I and/or III.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.