Optical laminate, article, and image display device

By stacking a hard coating, an optical functional layer, and an anti-fouling layer on a transparent substrate, the problem of insufficient scratch resistance in optical laminates is solved, and scratch resistance and anti-fouling properties are improved.

CN116577851BActive Publication Date: 2026-06-05DEXERIALS CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
DEXERIALS CORP
Filing Date
2022-03-18
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing optical laminates lack sufficient scratch resistance, making it difficult to meet the usage requirements of devices such as smartphones and touch panels.

Method used

By sequentially stacking a hard coating, an optical functional layer, and an antifouling layer on a transparent substrate, the hard coating contains fillers with a specific thickness and surface roughness, the optical functional layer consists of alternating layers of high and low refractive indices, and the antifouling layer contains fluorine compounds, an optical laminate with excellent scratch resistance is formed.

Benefits of technology

It improves the scratch resistance of optical laminates, enhances their anti-fouling properties, and reduces scratches and contamination during use.

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Abstract

An object of the present application is to provide an optical laminate, an article, and an image display device each having excellent scratch resistance. The optical laminate is an optical laminate in which a transparent substrate, a hard coat layer containing a filler, an optical functional layer, and an anti-fouling layer are sequentially stacked, the thickness of the hard coat layer is 3 μm or more and 25 μm or less, and the 10-point average roughness Rz of the surface of the optical laminate is 19 nm or more and 100 nm or less.
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Citation Information

Patent Citations

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  • Antireflective laminate, optical functional filter and optical display apparatus using the same

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