Optical laminate including reddening-resistant layer
US12124067B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | Jan 31, 2020 |
| Grant date | Oct 22, 2024 |
| Priority date | — |
| Expiry date | Jul 10, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2207/107
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An optical laminate, including: a polarizing layer; and a porous layer formed on at least one side of the polarizing layer, wherein the polarizing layer includes zinc component, and wherein an absolute value of a change in an amount of color coordinate a* of CIE L*a*b* according to Equation 1 is 2 or less: Δa*=a*a−a*i [Equation 1]
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.