Blue light emitting compound and organic electroluminescent device employing the same as color developing substance
US6730419B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 1, 2002 |
| Grant date | May 4, 2004 |
| Priority date | — |
| Expiry date | Jul 1, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/917
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A blue light emitting compound and an organic electroluminescent device using the same are provided. The blue light emitting compound is represented by the following Formula 1, thereby providing an organic electroluminescent device having superior color purity. wherein Ar1 and Ar2 are each independent substituents or substituent groups selected from the group consisting of aryl groups on which an aryl group, an alkyl group or an alkoxy group having 5 to 30 carbons may be substituted; fused aromatic ring groups having 4 to 24 carbons, such as naphthalene and anthracene; aryl groups having 5 to 20 carbons as well as an alkyl amino group or an aryl amino group of 4 to 25 carbons; carbazole derivatives having an alkyl group or aryl group of 1 to 25 carbons; fluorenyl groups having a substituent on the C-9 position of the fluorenyl group selected from the group consisting of alkyl groups having 2 to 30 carbons, polyalkoxide groups, and alkyl or alkoxy substituted aryl groups; and aryl groups comprising a silyl group having a substituent selected from the group consisting of alkyl groups of 4 to 35 carbons, aryl groups, and alkyl or alkoxy substituted aryl groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.