Organic electroluminescent materials and devices
US11189804B2 · kind B2 · utility
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34References
17Claims
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Key dates
| Filing date | Apr 11, 2018 |
| Grant date | Nov 30, 2021 |
| Priority date | — |
| Expiry date | Apr 11, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2102/351
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Novel phosphorescent metal complexes containing ligands having the Formula I: bearing either a naphthalene or other fused heterocycle moieties such as benzofuran and benzothiophene useful as emitters in OLEDs and improve the device efficiency and the FWHM of the emission are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.