Organic light emitting diode
US9831457B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 31, 2013 |
| Grant date | Nov 28, 2017 |
| Priority date | — |
| Expiry date | Nov 8, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2101/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present disclosure provides an organic light emitting device that includes a first electrode, a second electrode, and two or more light emitting units provided between the first electrode and the second electrode, wherein a charge generation layer is provided between, among the light emitting units, two light emitting units that are adjacent to each other, an electron transport layer is provided between the charge generation layer and the light emitting unit placed closer to the first electrode of the two adjacent light emitting units, and the electron transport layer includes a first electron transport layer doped with an n-type dopant, and a second electron transport layer doped with a metal salt, metal oxide or organic metal salt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.