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Electrically controlled peep-proof protection film based on polymer dispersed liquid crystal and preparation method

A technology of dispersing liquid crystal and anti-peep film, applied in optics, instruments, nonlinear optics, etc., can solve the problems of high manufacturing cost and complex structure of anti-peep film, and achieve the effect of simple process

Inactive Publication Date: 2017-07-21
YICHANG NANBO DISPLAY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the anti-spy film uses electrochromic materials and needs to be combined with an ion library layer and an ion transport layer to achieve the color-changing effect. The limitation of the material’s color-changing conditions makes the structure of the anti-spy film complex and the manufacturing cost is too high.

Method used

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  • Electrically controlled peep-proof protection film based on polymer dispersed liquid crystal and preparation method
  • Electrically controlled peep-proof protection film based on polymer dispersed liquid crystal and preparation method
  • Electrically controlled peep-proof protection film based on polymer dispersed liquid crystal and preparation method

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Embodiment 1

[0022] The anti-peeping film structure of the present invention is as follows: figure 1 As shown, it includes a transparent substrate layer, a transparent conductive layer, a base resin layer and a polymer dispersed liquid crystal layer.

[0023] The transparent substrate layer is a flexible film, including but not limited to PMMA, TAC, PP, PE, etc.;

[0024] The transparent conductive layer can be made of ITO, ATO, nano-silver or polythiophene, etc., to be attached to the surface of the transparent substrate by sputtering or coating.

[0025] The base resin layer is a transparent UV resin, and its composition includes but not limited to epoxy acrylate oligomers, urethane acrylate oligomers, acrylate monomers, methacrylate monomers, photoinitiators and the like.

[0026] The polymer-dispersed liquid crystal layer is composed of liquid crystal molecules and polymers, wherein the refractive index of the polymer is close to or the same as the longitudinal refractive index of the...

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Abstract

The invention discloses a structure and preparation method of electrically controlled peep-proof protection film based on a high-molecular polymer dispersed liquid crystal. The peep-proof protection film is made of transparent conductive film matched with the PDLC, and starts the peep-proof protection function based on needs through power control. After the peep-proof protection function is started, the range of visual angle is less than 70 degree, and parallel light transmittance within range is more than 60%; when the peep-proof protection function is closed, there is no limit on the visual angle, and the parallel light transmittance is more than 80%.

Description

technical field [0001] The invention discloses a structure and a preparation method of an electronically controlled polymer dispersed liquid crystal (PDLC) anti-peeping film. The anti-peeping film is prepared by using transparent conductive film and PDLC. In the production field of anti-peeping film for display or vehicle and building, the anti-peeping film can be controlled by the power supply whether to open the anti-peeping function. Background technique [0002] The rapid development of electronic products has not only changed people's production and lifestyle, but also brought great convenience and fun to people's life. However, the problem of leakage caused during the use of electronic products has gradually attracted people's attention. Due to the large viewing angle of the screen of existing electronic products, for individuals, the security of personal privacy such as bank account numbers and passwords is not guaranteed. For enterprises, commercial secrets may also...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1334G02F1/133
CPCG02F1/1334G02F1/13306
Inventor 程武张莉姚晓峰
Owner YICHANG NANBO DISPLAY