Polarizing film, pressure-sensitive-adhesive-layer-attached polarizing film, and image display device
US10247979B2 · kind B2 · utility
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1References
23Claims
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Key dates
| Filing date | Sep 29, 2015 |
| Grant date | Apr 2, 2019 |
| Priority date | — |
| Expiry date | Sep 29, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K3/38
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention pertains to a polarizing film having a transparent layer on at least one surface of a polarizer, wherein: the polarizer contains a polyvinyl alcohol-based resin and has a thickness of 15 μm or less; the transparent layer-side of the polarizer has a compatible layer thereon having compatibility with the transparent layer; and the thickness A of the polarizer and the thickness B of the compatible layer satisfy the general formula (100×B/A)≥1. This polarizing film has crack resistance and suppresses changes in the dimensions of the polarizer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.