Display device and method of manufacturing the same
US10727444B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 9, 2019 |
| Grant date | Jul 28, 2020 |
| Priority date | — |
| Expiry date | May 9, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A display device includes a display substrate, a light-emitting device, an encapsulation layer over the display substrate and encapsulating the light-emitting device, a filling layer on the encapsulation layer, a first cover layer on the filling layer, an opposite substrate on the first cover layer, and a diffraction grating layer disposed between the first cover layer and the opposite substrate, wherein the diffraction grating layer includes a plurality of diffraction patterns spaced apart from each other by a certain distance, and the plurality of diffraction patterns protrude from the surface of the opposite substrate in a direction perpendicular to the opposite substrate, and the surface of the opposite substrate faces the display substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.