Organic light emitting display device with micro-cavity structure
US9209422B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 23, 2014 |
| Grant date | Dec 8, 2015 |
| Priority date | — |
| Expiry date | Dec 23, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2102/351
Abstract
An organic light emitting display device includes a first electrode defined into red, green and blue sub-pixel regions; a first light emitting unit disposed on the first electrode and configured with a hole injection layer, a first hole transport layer, a first organic emission layer and a first electron transport layer. The device further includes a second light emitting unit disposed on the first light emitting unit and configured with a second hole transport layer, a second organic emission layer and a second electron transport layer; and a second electrode disposed on the second light emitting unit. A separation between the first organic emission layer and the second organic emission layer is larger than a separation between the first electrode and the first organic emission layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.