Organic light emitting device
US9722000B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2013 |
| Grant date | Aug 1, 2017 |
| Priority date | — |
| Expiry date | Dec 11, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2102/351
Abstract
An organic light emitting device utilizing the micro-cavity effect in the RGB subpixel regions while suppressing the micro-cavity effect in the white subpixel region is provided. The organic light emitting device includes a lower substrate, an anode formed on the lower substrate, an organic emission layer formed on the anode, a cathode formed on the organic emission layer, and a reflection decreasing layer formed on at least a portion of the cathode for reducing reflection of the light emitted from the organic emission layer by the cathode to reduce the micro-cavity effect. Such a selective use of the micro-cavity effect in the organic light emitting device improves the color accuracy, the luminance efficiency and the lifespan of the top emission type organic light emitting device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.