Delayed-fluorescence material and organic electroluminescence element using same
US10454038B2 · kind B2 · utility
9Cited by
2References
17Claims
0Family size
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Key dates
| Filing date | Jul 13, 2012 |
| Grant date | Oct 22, 2019 |
| Priority date | — |
| Expiry date | Aug 13, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K85/6572
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A delayed fluorescence material comprising a compound represented by the general formula below. At least one of R1 to R8 represent an electron-donating group and the others represent a hydrogen atom; at least one of R9 to R16 represent an electron-withdrawing group and the others represent a hydrogen atom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.