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Anti-scratch diffusion film and backlight module

A technology of anti-scratch and diffusion film, which is applied in optics, optical components, nonlinear optics, etc., can solve the problems of poor scratch resistance and achieve the effects of improving quality, no fire safety hazards, and reducing human hazards

Active Publication Date: 2019-05-07
HEFEI LUCKY SCI & TECH IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to reduce the possibility of fire and explosion due to the use of volatile solvents in the process of preparing the diffusion film, and reduce the harm of harmful gases to the human body, while overcoming the existing solvent-based resin system. The defect of poor scratch resistance, and provide a water-based and environmentally friendly anti-scratch diffusion film

Method used

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  • Anti-scratch diffusion film and backlight module
  • Anti-scratch diffusion film and backlight module
  • Anti-scratch diffusion film and backlight module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Preparation of main diffusion layer coating solution:

[0034]

[0035] Preparation of back coating solution:

[0036]

[0037]According to the composition formula of the main diffusion layer in Example 1 above, prepare the raw materials for the coating liquid: add the water-soluble resin emulsion and diffusion particles in the formula to the disperser for 30 to 40 minutes, and then add the resin crosslinking agent and dispersant for 10 to 15 minutes. Make the main diffusion layer coating solution; apply the uniformly dispersed main diffusion layer coating solution on the upper surface of the transparent substrate layer made of polyethylene terephthalate film, then carry out drying treatment, and finally carry out Aging treatment, aging for 12 hours to 24 hours to form the main diffusion layer of the diffusion film; the thickness of the main diffusion layer is 1 / 2 to 3 / 4 of the particle diameter of the largest PBMA particle.

[0038] According to the composition ...

Embodiment 2

[0040] Preparation of main diffusion layer coating solution:

[0041]

[0042] Preparation of back coating solution:

[0043]

[0044] According to the composition formula of the main diffusion layer in the above-mentioned embodiment 2, prepare the raw materials of the coating solution: add the water-soluble resin emulsion and diffusion particles in the formula to the disperser for 30 to 40 minutes, and then add the resin crosslinking agent and dispersant for 10 to 15 minutes. Make the main diffusion layer coating solution; apply the uniformly dispersed main diffusion layer coating solution on the upper surface of the transparent substrate layer made of polymethyl methacrylate film, then carry out drying treatment, and finally carry out aging treatment, Aging for 12 hours to 24 hours forms the main diffusion layer of the diffusion film; the thickness of the main diffusion layer is 1 / 2 to 3 / 4 of the particle diameter of the largest PBMA particle.

[0045] According to th...

Embodiment 3

[0047] Preparation of main diffusion layer coating solution:

[0048]

[0049]

[0050] Preparation of back coating solution:

[0051]

[0052] According to the composition formula of the main diffusion layer in the above-mentioned embodiment 3, prepare the raw materials of the coating solution: add the water-soluble resin emulsion and diffusion particles in the formula to the disperser for 30 to 40 minutes, and then add the resin crosslinking agent and dispersant for 10 to 15 minutes. Make the main diffusion layer coating solution; apply the uniformly dispersed main diffusion layer coating solution on the upper surface of the transparent substrate layer made of polycarbonate film, then carry out drying treatment, and finally carry out aging treatment, aging for 12 hours After 24 hours, the main diffusion layer of the diffusion film is formed; the thickness of the main diffusion layer is 1 / 2 to 3 / 4 of the particle diameter of the largest PBMA particle.

[0053] Accor...

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Abstract

The invention provides an anti-scratch diffusion film. The anti-scratch diffusion film comprises a transparent substrate, a main diffusion layer arranged on the upper surface of the transparent substrate, and an anti-scratch back layer arranged on the lower surface of the transparent substrate. The coating liquid of the main diffusion layer comprises, by weight, 30% to 80% of water-soluble resin emulsion, 10% to 65% of light-diffusing particles and 1% to 5% of functional adjuvant. The water-soluble resin emulsion contains water-soluble acrylic resin. The percentage of the weight of the water-soluble acrylic resin in the weight of the water-soluble resin emulsion is 40 to 70%. The light-diffusing particles are composed of large particles and small particles, wherein large particles and small particles have different particle sizes. According to the invention, the anti-scratch diffusion film nonflammable and non-explosive, and prevent fire safety hazards; the large particles in the light-diffusing particles use elastic anti-scratch particles; the problem that a prism film is easily scratched when the existing optical diffusion film is applied to a backlight module is solved; the product quality is improve; and the production cost is reduced.

Description

technical field [0001] The invention relates to an anti-scratch diffusion film and a backlight module. Background technique [0002] In recent years, various liquid crystal flat panel display technologies and products have developed rapidly. Flat panel display liquid crystal display is currently the most widely used flat display technology with the most products. The products have been widely used in various fields, such as LCD and LED liquid crystal display technologies are used in TV, Mobile phones, notebook computers, desktop computer monitors, workstations, industrial monitors, global satellite positioning system (GPS), personal data processing, game consoles, videophones, portable VCD, DVD and other portable devices. A liquid crystal display device mainly includes a liquid crystal panel, a backlight module, and the like. The backlight module is one of the key components of the liquid crystal display device. Its function is to supply sufficient brightness and evenly dis...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B1/10G02F1/13357
CPCG02B1/10G02F1/133606
Inventor 刘红妹汪志松李彩翠王辉高俊红孙晶晶
Owner HEFEI LUCKY SCI & TECH IND
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