Organic light-emitting diode device with efficiency roll-up property
US8237884B1 · kind B1 · utility
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2References
10Claims
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Key dates
| Filing date | Aug 4, 2011 |
| Grant date | Aug 7, 2012 |
| Priority date | — |
| Expiry date | Aug 4, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2101/40
Abstract
The present invention relates to an organic light-emitting diode device with efficiency roll-up property, comprising: a first conductive layer, a hole injection layer, a host light-emitting layer, a guest light-emitting layer, an electron transportation layer, a second conductive layer, and an electron injection layer, wherein when the guest light-emitting layer is doped in the host light-emitting layer after being appropriately selected and the value of ∥ΔEHOMO|−|ΔELUMO∥ approaches to zero, such that the color light emitted by the host light-emitting layer performs the property of current efficiency roll-up.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.