Cover glass for display, in-vehicle display device, and manufacturing method of cover glass for display
US11866365B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 8, 2021 |
| Grant date | Jan 9, 2024 |
| Priority date | — |
| Expiry date | May 15, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C2204/08
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention relates to a cover glass for a display, which is a glass plate having a first main surface and a second main surface. The cover glass contains, as represented by mol percentage based on oxides, from 50 to 75% of SiO2, from 5 to 20% of Al2O3, from 2 to 20% of Na2O, from 0 to 6% of K2O, from 0 to 15% of MgO, from 0 to 10% of a total amount (CaO+SrO+BaO) of CaO, SrO and BaO, from 0 to 5% of a total amount (ZrO2+TiO2) of ZrO2 and TiO2, from 0 to 10% of B2O3, and from 0 to 20% of Li2O. The cover glass has a ream minimum distance of 100 mm or more and 1,000 mm or less, and a ream period of 1 mm or more and 30 mm or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.