Polymeric fluorescent substance and polymer light-emitting device using the same
US7255936B2 · kind B2 · utility
3Cited by
9References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2002 |
| Grant date | Aug 14, 2007 |
| Priority date | — |
| Expiry date | Apr 21, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/917
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Provided is a polymeric fluorescent substance comprising a copolymer which has a substituent containing a specific aromatic amine structure below in the side chain,wherein X1 is a divalent hydrocarbon group; Ar2 is an arylene group or the like; Ar3 and Ar4 independently represent an aryl group or the like. The polymeric fluorescent substance is preferably used for a light emitting layer of a polymer LED having high luminance and high light emitting efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.