Anti-peeping film

A technology of anti-spy film and anti-spy layer, applied in the field of optics, can solve the problems of low light transmittance of anti-spy film, achieve good anti-spy effect, good light transmittance, and improve visual experience

Active Publication Date: 2019-07-05
NINGBO CHANGYANG TECH
View PDF7 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of low light transmittance of the exis

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Anti-peeping film
  • Anti-peeping film
  • Anti-peeping film

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0044] Example 1

[0045] The present invention provides a privacy film. The privacy film includes an upper support layer, a privacy protection layer, and a lower support layer in sequence. The privacy protection layer includes a diffusion unit and a light transmission unit. The light transmission unit is filled in the diffusion unit. Meanwhile, the diffusion unit includes light diffusion particles.

[0046] The content of the light diffusion particles in the privacy layer is 1%, and the content is a weight percentage.

[0047] The specific preparation method is as follows:

[0048] Mix PBMA (refractive index: 1.40) particles with an average particle size of 1μm and UV-cured acrylic resin glue (refractive index: 1.70) at a mass ratio of 3:22, and stir with a high-speed disperser at a speed of 1000 revolutions / min to avoid light 60min, make the resin mixture for preparing the diffusion unit. Coat the resin mixture on the transparent PET surface (lower support layer) with a polyuretha...

Example Embodiment

[0049] Example 2

[0050] Such as the privacy film provided in Example 1. The content of light diffusion particles in the privacy layer is 30%.

[0051] Mix PBMA (refractive index: 1.48) particles with an average particle size of 1μm and UV-curable acrylic resin glue (refractive index: 1.68) at a mass ratio of 3:22, and stir with a high-speed disperser at a speed of 1000 revolutions / min to avoid light 60min, make the resin mixture for preparing the diffusion unit. Coat the resin mixture on the transparent PET surface with polyurethane pre-coating on one side, and then squeeze it into an engraved roller. The speed is 6-20m / min to reach 450mj / cm. 2 The high-pressure mercury lamp of energy is irradiated to solidify the diffusion unit to form a PET with the diffusion unit on the surface. Then apply UV-cured acrylic resin glue (refractive index: 1.68) on the surface of the diffuser unit, so that the acrylic resin glue can completely fill the gaps between the diffuser units, and then s...

Example Embodiment

[0052] Example 3

[0053] Such as the privacy film provided in Example 1. The content of light diffusion particles in the privacy layer is 10%.

[0054] Mix PBMA (refractive index: 1.48) particles with an average particle diameter of 2μm and UV-cured acrylic resin glue (refractive index: 1.68) at a mass ratio of 3:22, and stir with a high-speed disperser at a speed of 1000 revolutions / min to avoid light 60min, make the resin mixture for preparing the diffusion unit. Coat the resin mixture on the transparent PET surface with polyurethane pre-coating on one side, and then squeeze it into an engraved roller. The speed is 6-20m / min to reach 450mj / cm. 2 The high-pressure mercury lamp of energy is irradiated to solidify the diffusion unit to form a PET with the diffusion unit on the surface. Then apply UV-cured acrylic resin glue (refractive index: 1.68) on the surface of the diffuser unit, so that the acrylic resin glue can completely fill the gaps between the diffuser units, and then...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
The average particle sizeaaaaaaaaaa
The average particle sizeaaaaaaaaaa
The average particle sizeaaaaaaaaaa
Login to view more

Abstract

The invention belongs to the technical field of optics and relates to an anti-peeping film. The invention aims to solve a problem that the light transmittance of an existing anti-peeping film is low.The anti-peeping film provided by the invention comprises an upper supporting layer, an anti-peeping layer and a lower supporting layer which are sequentially distributed; the anti-peeping layer comprises diffusion units and light-transmitting units; spaces between the diffusion units are filled with the light-transmitting units; the diffusion units comprise light diffusion particles. The light transmittance of the anti-peeping film can be increased, the light-transmitting units can be prevented from being blackened, a visual effect is improved, and user experience is better.

Description

technical field [0001] The invention relates to the field of optical technology, in particular, the invention relates to a privacy film. Background technique [0002] The anti-spy film adopts the world-leading micro-louver (MICROLOUVER) optical patent technology, so that the display can be seen within 60 degrees from the front, and the area beyond this range can only see a black screen, thereby protecting the displayed information. For example, it can be used in mobile phones, personal computers, ATM machines, etc.; at the same time, it can also be used in places where the viewing angle of the display needs to be limited, such as vehicle display, etc., to improve environmental safety. [0003] The traditional anti-spy film uses evenly arranged black absorbing units or grids with fixed intervals to limit the angle of light emitted by the display to within 60 degrees. When viewing the display from an angle beyond this range, the light emitted by the display will be blocked. T...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G02B5/02
CPCG02B5/0242
Inventor 金亚东熊斐杨承翰
Owner NINGBO CHANGYANG TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap