Polycyclic aromatic compound for organic electroluminescent device
US11600790B2 · kind B2 · utility
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13Claims
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Key dates
| Filing date | Jun 18, 2018 |
| Grant date | Mar 7, 2023 |
| Priority date | — |
| Expiry date | Jun 3, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/549
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
By using a polycyclic aromatic compound as a material for a light-emitting layer, formed by connecting a plurality of aromatic rings with a boron atom and an oxygen, sulfur, or selenium atom, which have been substituted by a specific aryl such as anthracene, an organic EL element having at least one of excellent quantum efficiency and element life can be provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.