Luminescence device and polycyclic compound for luminescence device
US12421255B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Sep 25, 2020 |
| Grant date | Sep 23, 2025 |
| Priority date | — |
| Expiry date | Jan 9, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2101/20
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An organic luminescence device includes a polycyclic compound represented by Formula 1 in at least one functional layer between a first electrode and a second electrode, wherein in Formula 1, X is O, S, Se, CR4R5, SiR6R7, or and at least one selected from L1 and Ar1 is an electron withdrawing group having a Hammett constant greater than 0:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.