Organic light emitting device
US9525151B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 15, 2012 |
| Grant date | Dec 20, 2016 |
| Priority date | — |
| Expiry date | Jan 11, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K85/221
- WIPO fieldMicro-structural and nano-technology
- WIPO sectorChemistry
Abstract
Provided is an organic light emitting device including a nano composite layer. The organic light emitting device adopts a nano composite layer including an insulator and light emitting nano-particles within a device, thereby simultaneously insulating a control electrode and changing the color of light emitted from a light emitting layer, thereby improving external quantum efficiency. Further, the amount of electron holes and electrons injected into the light emitting layer may be adjusted through a voltage applied to the control electrode so as to secure a stable current when the device is operated. In addition, when compared to a conventional light emitting device, the surface area of positive and negative electrodes may be reduced so as to reduce reflectance with respect to external light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.