Organic light-emitting device and method of manufacturing the same
US11903310B2 · kind B2 · utility
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4References
18Claims
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Key dates
| Filing date | Jul 31, 2020 |
| Grant date | Feb 13, 2024 |
| Priority date | — |
| Expiry date | Dec 23, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2101/30
Abstract
An organic light-emitting includes a first electrode having a work function greater than about 4.9 eV and less than about 5.2 eV, a second electrode facing the first electrode, an organic layer disposed between the first electrode and the second electrode and including an emission layer, a hole transport region disposed between the first electrode and the emission layer, wherein the hole transport region includes a first hole transport layer including a first hole-transporting material, and the first hole transport layer is substantially free of a p-dopant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.