Organic light emitting diode device
US9076978B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2013 |
| Grant date | Jul 7, 2015 |
| Priority date | — |
| Expiry date | Sep 30, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/38
Abstract
An organic light emitting diode device includes a first electrode and a second electrode facing each other, a charge-generating layer interposed between the first electrode and the second electrode, a first light emitting unit that emits blue and is interposed between the first electrode and the charge-generating layer, and a second light emitting unit that emits white by combining the blue and is interposed between the second electrode and the charge-generating layer. The first light emitting unit includes a blue emission layer, a first charge transport layer disposed on one side of the blue emission layer and including an alkali metal complex compound and a first charge transport material, and a second charge transport layer disposed on one side of the first charge transport layer and including the alkali metal complex compound and a second charge transport material that has different charge mobility from the first charge transport material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.