Blue fluorescent composition and organic electroluminescent device using the same
US8835020B2 · kind B2 · utility
2Cited by
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20Claims
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Key dates
| Filing date | Dec 1, 2009 |
| Grant date | Sep 16, 2014 |
| Priority date | — |
| Expiry date | Jan 9, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/917
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A blue fluorescent compound includes a host material being capable of transporting an electron or a hole; and a dopant material represented by following Formula 1:wherein at least two of the R1, the R2, the R3, and the R4 are selected from substituted or non-substituted aromatic group or substituted or non-substituted heterocyclic group, and the R5 is selected from substituted or non-substituted aromatic group or substituted or non-substituted heterocyclic group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.