White organic light emitting device
US7812529B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2008 |
| Grant date | Oct 12, 2010 |
| Priority date | — |
| Expiry date | Aug 6, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K50/19
Abstract
A white organic light emitting device includes: an anode formed on a substrate; a first emissive layer, in which a first sub-emissive layer and a second sub-emissive layer are stacked, formed on the substrate; a second emissive layer, in which a third sub-emissive layer and a fourth sub-emissive layer are stacked, formed on the first emissive layer; a first intermediate layer supplying electrons to the first emissive layer and a second intermediate layer supplying holes to the second emissive layer, wherein the first and second intermediate layers are formed between the first emissive layer and the second emissive layer; and a cathode formed on the second emissive layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.