Organic light emitting diode device
US7952273B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2007 |
| Grant date | May 31, 2011 |
| Priority date | — |
| Expiry date | Mar 23, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K85/631
Abstract
An organic light emitting diode (OLED) device is provided. The OLED device includes: a substrate; an anode formed on the substrate; a first organic thin layer formed on the anode; an organic emission layer formed on the first organic thin layer; a second organic thin layer formed on the organic emission layer; and a cathode formed on the second organic thin layer, wherein the first and second organic thin layers are formed in a single layer or a multi-layer, and at least a part of the first or second organic thin layer is doped with or formed of an insulator. The OLED device provides excellent durability, long life-time, and increased luminous efficiency by balanced charge injection caused by doping or stacking the insulator into or on the organic thin layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.