Liquid crystal multilayer film and preparation method thereof
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United States of America
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Feb 18, 2025
Grant Date -
Dec 1, 2022
app pub date -
Oct 30, 2020
filing date -
Oct 30, 2020
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Abstract
A multilayer film and a preparation method thereof is provided, and belongs to the technical field of optical films. The provided multilayer film comprises an ultraviolet blocking material and a cholesteric liquid crystal layer. The cholesteric liquid crystal layer comprises a polymerizable liquid crystal monomer, a polymerizable chiral dopant and a photoinitiator. The multilayer film can filter ultraviolet rays and near infrared rays in natural light, thereby reducing the heat effect of the natural light and harms of the ultraviolet rays to people and objects. In addition, the multilayer film has a high visible light transmission rate, which does not distort the color of the natural light passing through.
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