Polymeric fluorescent substance and organic electroluminescence device
US6403237B1 · kind B1 · utility
14Cited by
1References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 8, 1999 |
| Grant date | Jun 11, 2002 |
| Priority date | — |
| Expiry date | Jun 8, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/917
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided is a high heat-resistant polymeric fluorescent substance having a divalent condensed polycyclic aromatic group of specific size having a bonding part at specific position shows fluorescence at a long wave length from orange to red, which is useful for fabricating an organic EL device having excellent properties by a coating method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.