Compound, material for organic electroluminescence element, organic electroluminescence element, and electronic device
US11479544B2 · kind B2 · utility
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25Claims
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Key dates
| Filing date | Mar 8, 2018 |
| Grant date | Oct 25, 2022 |
| Priority date | — |
| Expiry date | May 30, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K50/156
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A novel compound represented by formula (1): wherein R1 to R7, R11 to R18, L1 to L3, a to c, n, and Ar are as defined in the description, provides an organic electroluminescence device having a device lifetime further improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.