Light emitting element
US12428597B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Jan 25, 2022 |
| Grant date | Sep 30, 2025 |
| Priority date | — |
| Expiry date | Apr 8, 2044 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2101/20
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A light emitting element of one or more embodiments includes a first electrode, a second electrode, and a polycyclic compound represented by Formula 1 below in an emission layer disposed between the first electrode and the second electrode, thereby showing high emission efficiency properties: The polycyclic compound is of a DABNA structure includes one heteroaryl group substituted at a para position to boron, and two bulky substituents substituted at meta positions to the boron.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.