Organic light emitting diode having low driving voltage, high brightness, and excellent light emitting efficiencies
US9190626B2 · kind B2 · utility
4Cited by
5References
20Claims
0Family size
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Key dates
| Filing date | May 31, 2013 |
| Grant date | Nov 17, 2015 |
| Priority date | — |
| Expiry date | May 31, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2101/10
Abstract
An organic electroluminescent device includes an anode, a cathode, a light emitting layer provided between the anode and the cathode, a first organic material layer being in physical contact with the anode and doped with a p-type dopant, and a second organic material layer being in physical contact with the cathode and doped with a p-type dopant. The concentration of the p-type dopant in the first organic material layer is 50% by weight or more and less than 100% by weight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.