Aromatic compounds and organic light emitting diodes
US6861163B2 · kind B2 · utility
8Cited by
3References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2003 |
| Grant date | Mar 1, 2005 |
| Priority date | — |
| Expiry date | Apr 17, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/917
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A blue organic light emitting diode (LED) comprises a cathode formed on a substrate, a light emitting layer formed on said cathode, and an anode formed on said light emitting layer, which is characterized in that said light emitting layer comprises a compound of the following formulas I or II:wherein Ar1 and Ar2 independently are substituted or unsubstituted isochrysenylAr1—Ar2 IAr1—Ar3—Ar2 II(triphenylenyl), anthracenyl, naphthalyl, biphenyl, pyrenyl, or phenanthrenyl; Ar3 is substituted or unsubstituted phenylene, biphenylene, naphthylene, anthracenylene, or fluorenylene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.