Organic light emitting device
US11864460B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 20, 2019 |
| Grant date | Jan 2, 2024 |
| Priority date | — |
| Expiry date | Feb 24, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2101/40
Abstract
An organic light emitting device including a first electrode, a second electrode provided opposite to the first electrode, and an organic material layer provided between the first electrode and the second electrode, wherein the organic material layer includes a hole transfer layer and an electron blocking layer, and the hole transfer layer and the electron blocking layer include a compound of Chemical Formula 1, the materials of the hole transfer layer and the electron blocking layer are different from each other, and one or more layers that are not the hole transfer layer and the electron blocking layer of the organic material layer include a compound of Chemical Formula 2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.