Cover window and foldable display device including the same
US11721244B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2020 |
| Grant date | Aug 8, 2023 |
| Priority date | — |
| Expiry date | Dec 19, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133331
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Provided is a cover window. The cover window includes a substrate layer. The cover window further includes a hard-coating layer on the substrate layer. The cover window further includes a protective film disposed on the hard-coating layer and including a base film and a plurality of protrusions protruding from the base film. The cover window further includes an adhesive layer disposed on surfaces of the plurality of protrusions and bonding the hard-coating layer and the protective film. The protective film includes a first area and second areas disposed on both sides of the first area. The plurality of protrusions are disposed in the first area. The plurality of protrusions have a shape in which the protrusions disposed on one side and the protrusions disposed on the other side are symmetrical to each other with respect to a central line of the first area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.