Reflection preventing film and method for manufacturing same, and reflection preventing layer- attached polarization plate
US10942295B2 · kind B2 · utility
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15Claims
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Key dates
| Filing date | Jun 16, 2017 |
| Grant date | Mar 9, 2021 |
| Priority date | — |
| Expiry date | Jun 16, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/3025
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The anti-reflection film includes an anti-reflection layer composed of multilayer thin-films having different refractive indexes on one principal surface of a transparent film substrate. The moisture permeability of the anti-reflection film is 15 to 1000 g/m2·24 h. The surface of the anti-reflection layer has an indentation elastic modulus of 20 to 100 GPa, and an arithmetic mean roughness Ra of 3 nm or less. The arithmetic mean roughness Ra of the surface of the anti-reflection layer is preferably 1.5 nm or less. The thin-films constituting the anti-reflection layer can be deposited by, for example, a sputtering method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.