Organic light emitting diode device including multiple hole injection layers
US9368744B2 · kind B2 · utility
6Cited by
1References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2011 |
| Grant date | Jun 14, 2016 |
| Priority date | — |
| Expiry date | Sep 22, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2101/40
Abstract
An organic light emitting diode device, including a first electrode, a second electrode facing the first electrode, and a light emitting member disposed between the first electrode and the second electrode, the light emitting member including at least one light emitting unit. At least one of the light emitting units may include a first hole injection layer, a second hole injection layer, a hole transport layer, and an emission layer, and a difference between a HOMO energy level of the first hole injection layer and a LUMO energy level of the second hole injection layer may be smaller than about 0.5 eV.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.