Organic light emitting display panel having a reflector in the pixel definition layer
US10446624B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 3, 2017 |
| Grant date | Oct 15, 2019 |
| Priority date | — |
| Expiry date | Aug 3, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/878
Abstract
An organic light emitting display panel is provided, includes a substrate, a transparent anode, a pixel definition layer, an organic light emitting layer and a plurality of cathodes having reflective function provided on the substrate. A plurality of open slots is provided on the pixel definition layer. The anodes are provided on one end of the open slot adjacent to the substrate, the organic light emitting layer is packed in the open slot, the cathodes are provided on another side of the open slot away from the substrate. A method of manufacturing an organic light emitting display panel is also provided. The reflective cathode is made only in light emitting region, can prevent sub-pixels from light interference emitted from adjacent sub-pixels as well as increase color purity and improve color shift phenomenon in a bottom emission type device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.