Display apparatus having an inorganic encapsulating layer with a rough surface and method of manufacturing the same
US10879491B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 29, 2020 |
| Grant date | Dec 29, 2020 |
| Priority date | — |
| Expiry date | Apr 29, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A display apparatus includes a substrate including a first area, a second area surrounding the first area, and a third area between the first area and the second area. A plurality of display elements disposed in the second area include a first display element and a second display element spaced apart from each other. A thin-film encapsulation layer includes an organic encapsulation layer covering the plurality of display elements. An inorganic encapsulation layer is on the organic encapsulation layer. A planarization layer partially covers the thin-film encapsulation layer in the third area. The inorganic encapsulation layer includes a first surface facing the planarization layer and a second surface facing in an opposite direction. The first surface has a roughness that is greater than a roughness of the second surface. In addition, other various embodiments may be provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.