Organic light-emitting diode and flat display device including the same
US9224969B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 14, 2012 |
| Grant date | Dec 29, 2015 |
| Priority date | — |
| Expiry date | Mar 26, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K85/636
Abstract
An organic light-emitting diode including a first electrode; a second electrode facing the first electrode; an emission layer interposed between the first electrode and the second electrode; a first hole transport layer including a first hole transporting compound; a second hole transport layer including a second hole transporting compound, the first and second hole transport layers being interposed between the first electrode and the emission layer; an electron transport layer interposed between the emission layer and the second electrode; a first mixing layer interposed between the first electrode and the first hole transport layer, contacting the first hole transport layer, and including the first hole transporting compound and a first cyano group-containing compound; and a second mixing layer interposed between the first electrode and the second hole transport layer, contacting the second hole transport layer, and including the second hole transporting compound and a second cyano group-containing compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.