Display apparatus and method of manufacturing the same
US11011589B2 · kind B2 · utility
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10Claims
0Family size
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Key dates
| Filing date | Sep 22, 2020 |
| Grant date | May 18, 2021 |
| Priority date | — |
| Expiry date | Sep 22, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A display apparatus including a display substrate, a light-emitting device on the display substrate, an encapsulation substrate on the light-emitting device and bonded to the display substrate, and a diffraction-grating layer on a top surface of the encapsulation substrate, wherein the diffraction-grating layer includes a plurality of diffraction patterns spaced apart from one another by a predetermined distance, and each of the plurality of diffraction patterns has a stacked structure of a lower layer and an upper layer, wherein the lower and upper layers include different materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.