Organic electroluminescence device and polycyclic compound for organic electroluminescence device
US11145821B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Mar 11, 2019 |
| Grant date | Oct 12, 2021 |
| Priority date | — |
| Expiry date | Apr 8, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2101/10
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An organic electroluminescence device includes a first electrode, a hole transport region provided on the first electrode, an emission layer provided on the hole transport region, an electron transport region provided on the emission layer, and a second electrode provided on the electron transport region, wherein the emission layer includes a polycyclic compound represented by Formula 1. In Formula 1, L11 and L21 are each independently represented by Formula 2, and L12 and L22 are each independently represented by Formula 3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.