Organic electroluminescent element
US11189802B2 · kind B2 · utility
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12Claims
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Key dates
| Filing date | Apr 16, 2018 |
| Grant date | Nov 30, 2021 |
| Priority date | — |
| Expiry date | Dec 11, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2101/90
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
There is provided an organic EL element having high efficiency and high driving stability despite having a low driving voltage. An organic electroluminescent element has a light-emitting layer between an anode and a cathode which face each other, and the light-emitting layer contains a first host selected from among indolocarbazole compounds represented by formula (1), a second host selected from among biscarbazole compounds represented by formula (2), and a light-emitting dopant material:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.