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Liquid crystal multilayer film and preparation method thereof

A multi-layer film, liquid crystal technology, applied in the field of optical film, can solve the problem of reducing sunlight transmittance and so on

Active Publication Date: 2020-10-23
SHENZHEN GUOHUA OPTOELECTRONICS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These dyes reduce solar transmittance, but also essentially absorb the visible part, thus tinting the windowpane

Method used

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  • Liquid crystal multilayer film and preparation method thereof
  • Liquid crystal multilayer film and preparation method thereof
  • Liquid crystal multilayer film and preparation method thereof

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Embodiment Construction

[0034] As used herein, "and / or" includes any and all combinations of one or more of the associated listed items. The terms used herein are for describing specific embodiments only, and are not intended to limit the present invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It is further understood that "comprising", when used in this specification, designates stated features, integers, steps, operations, elements and / or compositions, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, compositions and / or combinations thereof.

[0035] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It is further understood that terms, such as defined in commonly us...

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Abstract

The invention discloses a liquid crystal multilayer film and a preparation method thereof, and belongs to the technical field of optical films; the liquid crystal multilayer film provided by the invention comprises an ultraviolet blocking material and a cholesteric-phase liquid crystal layer, a cholesteric-phase liquid crystal comprises a polymerizable liquid crystal monomer, a polymerizable chiral dopant and a photoinitiator, and ultraviolet rays and near infrared rays in natural light can be filtered by using the liquid crystal multilayer film, so that the harm of the ultraviolet rays to people and objects is reduced while the heat effect of the natural light is reduced, the visible light has high luminous flux, and the color of the natural light passing through the liquid crystal multilayer film is not distorted.

Description

technical field [0001] The embodiments of the present application relate to but are not limited to the technical field of optical films, and in particular relate to a liquid crystal multilayer film and a preparation method thereof. Background technique [0002] Windows are an important part of modern buildings such as buildings and vehicles. They allow natural light to enter the interior space and provide a comfortable, healthy and safe environment for the occupants. However, natural light entering through windows can also be dangerous and uncomfortable, and sunlight consists of ultraviolet light (300-400nm), visible light (400-700nm) and near-infrared light (700-2500nm). UV light interacts with materials, such as furniture in buildings, causing discoloration and degradation, and interacts with human skin, with potential negative effects on people's health. Therefore, the window material should preferably block UV rays. Visible light transmission can greatly affect the com...

Claims

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Application Information

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IPC IPC(8): G02F1/137G02F1/1335
CPCG02F1/13718G02F1/133514G02B5/208G02B1/005G02B5/3016C09K2019/0448C09K19/586C09K2019/3408C09K19/3861C09K19/588G02B1/02
Inventor 奥古斯丁·卡尔胡小文周国富
Owner SHENZHEN GUOHUA OPTOELECTRONICS
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