Organic electroluminescent display device
US10637009B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 21, 2020 |
| Grant date | Apr 28, 2020 |
| Priority date | — |
| Expiry date | Jan 21, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
An organic EL display device including a plurality of pixels includes an element substrate including a substrate, and a plurality of organic EL elements supported by the substrate and respectively located in the plurality of pixels; and a thin film encapsulation structure covering the plurality of pixels. The thin film encapsulation structure includes a first inorganic barrier layer, an organic barrier layer in contact with a top surface of the first inorganic barrier layer, the organic barrier layer including a plurality of solid portions distributed discretely, and a second inorganic barrier layer in contact with the top surface of the first inorganic barrier layer and top surfaces of the plurality of solid portions of the organic barrier layer. The organic barrier layer is black.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.