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All-solid state reflecting film and preparation method thereof

A reflective film, all-solid-state technology, applied in optics, instruments, optical components, etc., can solve the problem of thin film brittleness deterioration

Inactive Publication Date: 2017-10-27
SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has good mechanical properties and reflectivity, but the use of inorganic filler particles and hollow resin particles makes the film brittle, which is limited in practical applications.

Method used

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  • All-solid state reflecting film and preparation method thereof
  • All-solid state reflecting film and preparation method thereof
  • All-solid state reflecting film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0096] This embodiment provides a reflective film, specifically an all-solid double-layer reflective film with high reflectivity, which is formed by laminating two single-layer reflective films. The two single-layer reflective films are respectively named as the first single-layer reflective film. film and a second single-layer reflective film.

[0097] The first single-layer reflective film is composed of a polymer matrix with a microcavity, and a filling medium (cured NOA 81 UV curing glue) filled in the microcavity, wherein the microcavity presents a right-handed structure;

[0098] The second single-layer reflective film is composed of a polymer matrix with a microcavity, and a filling medium (cured NOA 81 ultraviolet curing glue) filled in the microcavity, wherein the microcavity presents a left-handed structure;

[0099] figure 1 It is a schematic diagram of the structure of the double-layer reflective film of this embodiment, wherein 11 represents the first single-laye...

Embodiment 2

[0127] This embodiment provides a reflective film, specifically an all-solid high-reflectivity four-layer reflective film, which is formed by laminating four single-layer reflective films. These four single-layer reflective films are respectively named as the first single-layer reflective film. film, a second single-layer reflective film, a third single-layer reflective film and a fourth single-layer reflective film.

[0128] The first single-layer reflective film is composed of a polymer matrix with a microcavity, and a filling medium (cured NOA 81 UV curing glue) filled in the microcavity, wherein the microcavity presents a right-handed structure;

[0129] The second single-layer reflective film is composed of a polymer matrix with a microcavity, and a filling medium (cured NOA 81 ultraviolet curing glue) filled in the microcavity, wherein the microcavity presents a left-handed structure;

[0130] The third single-layer reflective film is composed of a polymer matrix with a ...

Embodiment 3

[0153] This embodiment provides a reflective film, specifically an all-solid single-layer reflective film with high reflectivity.

[0154] The reflective film is composed of a polymer matrix with a microcavity, and a filling medium (cured NOA 81 UV-curable glue) filled in the microcavity, wherein the microcavity presents a right-handed structure;

[0155] Preparation:

[0156] (1) Apply polyimide glue on the glass substrate, and after annealing at 200°C, use high-speed rotating flannelette to perform rubbing orientation to obtain the first composite layer composed of glass and oriented polyimide layer;

[0157] (2) Apply polyimide glue on the glass substrate, and after annealing at 200°C, use high-speed rotating flannelette to perform rubbing orientation to obtain a second composite layer composed of glass and an oriented polyimide layer;

[0158] (3) The first composite layer and the second composite layer are buckled to form a liquid crystal cell, and the substrates are all...

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Abstract

The invention discloses an all-solid state reflecting film and a preparation method thereof. The reflecting film comprises a polymer matrix with a micro cavity and a filling medium arranged in the micro cavity. The micro cavity in the reflecting film presents a spiral structure. The method of the invention comprises the steps of (1) preparing a first composite layer including an orientation layer on a first substrate, (2) preparing a second t composite layer including an orientation layer on a second substrate, (3) using the first composite layer and the second composite layer to prepare a liquid crystal box, (4) injecting cholesteric liquid crystal, a photoinitiator and a polymer monomer into the liquid crystal box, (5) carrying out polymerization, (6) using a solvent to carry out soaking dissolving and then taking a film material out, and drying the film material, (7) injecting a filler into a film layer obtained through drying, and carrying out curing to obtain a reflecting film. The reflecting film of the invention has the advantages of an all solid state, flexibility, plasticity and high reflectivity, and the reflecting film can be completely separated from the substrate. The all-solid state reflecting film can be widely used in a series of optical device products.

Description

technical field [0001] The invention belongs to the field of photonic crystal reflective films, and relates to an all-solid reflective film and a preparation method thereof, in particular to an all-solid reflective film and a preparation method thereof. Background technique [0002] Liquid crystal is a special form of matter whose state of matter is between solid crystal and traditional liquid. Today, liquid crystals have been widely used in displays and various optical photonic devices. Cholesteric liquid crystals self-assemble in antiparallel liquid crystal cells to form a one-dimensional photonic crystal structure, which is sensitive to external environments, such as temperature, electromagnetic field, light field, stress, etc. Therefore, cholesteric liquid crystals are widely used in dynamic gratings, electronically controlled optical switches, broadband polarizers, liquid crystal lasers, and bistable reflective liquid crystal displays. [0003] Cholesteric liquid crys...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B1/00G02B5/08
CPCG02B1/005G02B5/08
Inventor 罗丹李勇
Owner SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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