Organic electroluminescence device and spiro compound for organic electroluminescence device
US12108667B2 · kind B2 · utility
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12Claims
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Key dates
| Filing date | Apr 15, 2019 |
| Grant date | Oct 1, 2024 |
| Priority date | — |
| Expiry date | Apr 10, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2101/20
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An organic electroluminescence device of an embodiment includes a first electrode, a hole transport region on the first electrode, an emission layer on the hole transport region, an electron transport region on the emission layer and a second electrode on the electron transport region, wherein the emission layer includes a spiro compound containing an aryl amine group and an indenoindole derivative, thereby showing high emission efficiency and the emission layer emits green light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.