Organic light-emitting element using polycyclic aromatic derivative compound
US12281248B2 · kind B2 · utility
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Key dates
| Filing date | Nov 28, 2019 |
| Grant date | Apr 22, 2025 |
| Priority date | — |
| Expiry date | Jul 1, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2102/103
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An organic light-emitting element according to the present invention employs a polycyclic aromatic derivative compound in a light-emitting layer inside the element, and further comprises a capping layer. Thus, the organic light-emitting element can be made highly efficient and can be useful for a device selected from among a flat panel display device, a flexible display device, a monochrome or white flat panel lighting device, and a monochrome or white flexible lighting device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.