Pyrromethene metal complex and light emitting device composition and light emitting devices using the same
US6805978B2 · kind B2 · utility
12Cited by
1References
9Claims
0Family size
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Key dates
| Filing date | Apr 22, 2002 |
| Grant date | Oct 19, 2004 |
| Priority date | — |
| Expiry date | Apr 22, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/917
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A pyrromethene metal complex is used as a fluorescent dye to form a light emitting device. The light emitting device has a substance which brings about light emission between an anode and a cathode. By applying electrical energy, the device generates emission having an emission peak wavelength of 580 to 720 nm. The device contains at least one of: a diketopyrrolo[3,4-c]pyrrole derivative and an organic fluorescent material having a fluorescent peak wavelength of 580 to 720 nm; and a light emitting device composition containing a pyrromethene metal complex.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.