Polymeric fluorescent substance and polymer light emitting device
US6994921B2 · kind B2 · utility
2Cited by
5References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2001 |
| Grant date | Feb 7, 2006 |
| Priority date | — |
| Expiry date | Aug 14, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/917
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polymeric fluorescent substance exhibiting strong visible fluorescence in solid state. The substance has a polystyrene reduced number-average molecular weight of 1×103 to 1×108, and contains repeating units represented by formula (1),—Ar1—(CR1═CR2)m— (1)in the formula, Ar1 represents an arylene group having a specific substituent. By using the polymeric fluorescent substance, a high performance polymer LED can be prepared easily.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.