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Optical diffusion barrier

An optical diffusion and diffusion coating technology, which is applied in the field of optical diffusion films, can solve the problems of the anti-adhesion layer diffusion particles falling off, falling off, poor light transmission and display, etc., and achieves the effect of simple structure and production process and guaranteed performance.

Inactive Publication Date: 2015-12-02
TAIHU JINZHANG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of assembly and customer use, it is easy to cause the diffusion particles inside the anti-adhesion layer to fall off due to the friction between the anti-adhesion layer of the diffusion film and the light guide plate, resulting in poor light transmission and display. Therefore, those skilled in the art are committed to To develop a diffuser membrane product to solve the shedding problem

Method used

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  • Optical diffusion barrier

Examples

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Effect test

Embodiment 1

[0020] Such as figure 1 As shown, on one side of the transparent PET substrate layer 103, spherical PMMA diffusion particles of three particle sizes are coated to form a diffusion coating 102, and an acrylic resin is evenly coated on the other side, and the embossing roller is passed through a heated embossing roller to produce unevenness. Uneven surface (such as regular or irregular spherical, cylindrical, pyramidal and other convex surfaces and regular or irregular spherical, cylindrical, conical and other concave surfaces, regular or irregular three-dimensional pattern pattern of convex and concave surfaces, etc. ).

[0021] PET substrate thickness (μm) Anti-adhesion layer thickness (μm) Haze (%) Transmittance(%) 100 5 96 77

Embodiment 2

[0023] Such as figure 1 As shown, on one side of the transparent PET substrate layer 103, spherical PMMA diffusion particles of three kinds of particle sizes are coated to form the diffusion coating 102, and an acrylic resin solution is evenly coated on the other side, dried and cured by heating, and passed through An embossing roller to produce uneven surfaces (such as regular or irregular spherical, cylindrical, pyramidal and other convex and regular or irregular spherical, cylindrical, conical and other concave surfaces, regular or irregular three-dimensional patterns formed convex and concave, etc.).

[0024] PET substrate thickness (μm) Adhesive thickness (μm) Haze (%) Transmittance(%) 100 5 96 75

Embodiment 3

[0026] Such as figure 1 As shown, on one side of the transparent PET substrate layer 103, spherical PC diffusion particles of four kinds of particle sizes are coated to form a diffusion coating 102, and an acrylic resin solution is uniformly coated on the other side, and after drying and partial curing by heating, And pass through an embossing roller to produce uneven surfaces (such as regular or irregular spherical, cylindrical, pyramidal and other convex and regular or irregular spherical, cylindrical, conical and other concave surfaces, regular or irregular three-dimensional The convex and concave surfaces formed by pattern patterns, etc.), and then undergo secondary heating and curing.

[0027] PET substrate thickness (μm) Adhesive thickness (μm) Haze (%) Transmittance(%) 100 5 95 75

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Abstract

The invention discloses an optical diffusion barrier comprising a transparent base material layer. A side of the transparent base material layer is coated with a diffusion coating filled with diffusion particles. The other side of the transparent base material layer is provided with an anti-bonding layer with an uneven surface. The optical diffusion barrier solves a problem that the diffusion particles are liable to fall, and has advantages of simple structure and manufacture technology and excellent performance.

Description

technical field [0001] The invention relates to an optical diffusion film and belongs to the field of optical materials. Background technique [0002] Existing optical diffusion films are widely used in liquid crystal display backlights, advertising light boxes, lighting fixtures, mobile communication equipment buttons and other devices that require light sources to provide uniform lighting. In recent years, with the rapid development of liquid crystal display backlight and its wide application in mobile communication equipment display, notebook computer display, desktop computer display and large-size LCD TV, the performance requirements of optical diffusion film in backlight are increasing day by day. [0003] Most of the existing optical diffusion films are organic films produced by stretching technology and multi-layer films produced by coating, wherein the coating layer of the multi-layer film produced by coating contains diffusing particles of different particle sizes ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/02
Inventor 施克炜陈晓东
Owner TAIHU JINZHANG TECH CO LTD