Cover glass
US12054419B2 · kind B2 · utility
0Cited by
9References
11Claims
0Family size
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Key dates
| Filing date | Jun 1, 2021 |
| Grant date | Aug 6, 2024 |
| Priority date | — |
| Expiry date | Oct 22, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/0268
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A cover glass includes: a glass substrate having a convex and concave shape formed on at least one of surfaces thereof by an antiglare treatment; and an antireflection film disposed on the surface of the glass substrate, the surface having the convex and concave shape. In the cover glass, a difference Δa* in a* value between any two points within a surface of the cover glass on the side where the antireflection film is present and a difference Δb* in b* value between any two points within the surface of the cover glass on the side where the antireflection film is present satisfy the following expression: √{(Δa*)2+(Δb*)2}≤4.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.