Organic light-emitting device
US9543538B2 · kind B2 · utility
8Cited by
0References
19Claims
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Key dates
| Filing date | Oct 31, 2014 |
| Grant date | Jan 10, 2017 |
| Priority date | — |
| Expiry date | Nov 13, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2101/50
Abstract
An organic light-emitting device includes a positive electrode, a negative electrode and at least one organic material layer between the positive electrode and the negative electrode. The at least one organic material layer includes a hole-injecting layer, a hole-transporting layer, an emission layer, an electron-transporting layer, and an electron-injecting layer, and the emission layer includes a host material and a dopant material. In addition, a lifetime enhancement layer including a bipolar compound is positioned between the emission layer and the electron-transporting layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.