Light emitting material, delayed fluorescent emitter, organic light emitting device, and compound
US9685615B2 · kind B2 · utility
4Cited by
2References
1Claims
0Family size
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Key dates
| Filing date | Jul 2, 2014 |
| Grant date | Jun 20, 2017 |
| Priority date | — |
| Expiry date | Jul 2, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K50/11
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A compound represented by the following general formula is useful as a light emitting material. X represents an oxygen atom or a sulfur atom. R1 to R8 represent a hydrogen atom or a substituent, provided that at least one of R1 to R8 is a carbazolyl group, etc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.