High-brightness and high-haze light homogenizing film

A technology of uniform light film and uniform light layer, which is applied in the field of projection film, can solve the problems of poor reflection brightness, angle influence, poor light uniformity, etc., and achieve the effect of increased brightness, simple raw materials, and simple manufacturing process

Active Publication Date: 2021-02-02
HEFEI LUCKY SCI & TECH IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, it overcomes the defects of poor reflection brightness and uniformity of existing products, and the viewing angle is affected by defects, and provides a highlight with high brightness performance, high haze performance, excellent diffuse reflection performance, and excellent uniformity performance. High fog uniform light film

Method used

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  • High-brightness and high-haze light homogenizing film
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  • High-brightness and high-haze light homogenizing film

Examples

Experimental program
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Effect test

preparation example Construction

[0042] refer to figure 1 and figure 2 , the invention provides a method for preparing a high-brightness and high-fog uniform light film, comprising the following steps:

[0043] S1: Mix a solvent with a weight percentage of 59% to 70% and a film-forming resin with a weight percentage of 9% to 15%, and stir at a stirring rate of 400rpm-700rpm for 30 minutes to obtain a film-forming resin pre-solution;

[0044] Add 14%-18% by weight of high-refractive index particles to the film-forming resin pre-solution, stir at a stirring rate of 400rpm-700rpm for 30 minutes, then add 3%-6% by weight of reflective particles, and continue stirring In 20 minutes, the film-forming material resin particle mixed solution was obtained;

[0045] Add 0.07% to 0.11% by weight leveling agent and 1.3% to 1.5% by weight black pigment to the film-forming resin particle mixture, stir at 400rpm-700rpm for 10 minutes, and then add the weight percent 0.75%-1% cross-linking agent, and continue to stir at a...

Embodiment 1

[0050] Preparation of high-brightness and high-fog leveling layer coating solution:

[0051] Butanone: 32.35g

[0052] Toluene: 6g

[0053] Methyl isobutyl ketone: 7g

[0054] 5μm glass microspheres (Yumingjie Technology): 0.6g

[0055] 18μm glass beads (Yumingjie Technology): 1g

[0056] 30μm glass microspheres (Yumingjie Technology): 0.6g

[0057] 5μm polyurethane microbeads: 5g

[0058] 12μm polyurethane microbeads: 6g

[0059] Acrylic resin: 6g

[0060] Isophorone diisocyanate (IPDI): 0.5g

[0061] Black paint (Marley): 0.9 g

[0062] Acrylic leveling agent: 0.05g

[0063] Stir and mix the above-mentioned materials evenly to prepare a coating solution for a high-brightness, high-fog, and uniform-gloss layer. Using a polyethylene terephthalate (PET) film with a thickness of 100 μm as the base material, one side is coated with a high-brightness and high-fog coating solution, and dried with hot air to make the dry film thickness about 15 μm to produce a high-brightn...

Embodiment 2

[0065] Preparation of high-brightness and high-fog leveling layer coating solution:

[0066] Acetone: 32.692g

[0067] Xylene: 5g

[0068] Cyclohexanone: 6g

[0069] 5μm glass microspheres (Yumingjie Technology): 0.5g

[0070] 18μm glass microspheres (Yumingjie Technology): 1.5g

[0071] 30μm glass microspheres (Yumingjie Technology): 0.5g

[0072] 5μm polyurethane microbeads: 6g

[0073] 12μm polyurethane microbeads: 5.3g

[0074] Epoxy acrylate: 7g

[0075] HDI trimer: 0.53g

[0076] Black pigment (Marley): 0.92 g

[0077] Acrylic leveling agent: 0.058g

[0078] Stir and mix the above-mentioned materials evenly to prepare a coating solution for a high-brightness, high-fog, and uniform-gloss layer. Using a polyethylene terephthalate (PET) film with a thickness of 100 μm as the base material, one side is coated with a high-brightness and high-fog coating solution, and dried with hot air to make the dry film thickness about 15 μm to produce a high-brightness and high-...

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Abstract

The invention discloses a high-brightness and high-haze light homogenizing film, which comprises a base material and a high-brightness and high-haze light homogenizing layer fixed on one surface of the base material, and the high-brightness and high-haze light homogenizing layer comprises reflective particles, high-refractive index diffusion particles, black pigment, film forming matter resin, a cross-linking agent, a solvent and a leveling agent. By selecting the reflective particles and controlling the dosage of the reflective particles, the brightness of the film can be adjusted, and the film has high brightness; according to the invention, the reflective particles and the high-refractive index diffusion particles are combined, and the particles with different particle sizes are selected, so that viewing is not affected by angles; according to the invention, the haze is controlled through the high-refractive-index diffusion particles, so that the high-brightness homogenizing film has stronger homogenizing performance. The brightness of the product obtained by the invention can be 11-36% higher than that of a common projection film, and the brightness is controllable.

Description

technical field [0001] The invention relates to the field of projection films, in particular to a high-brightness and high-fog uniform light film. Background technique [0002] With the development of economy and technology, people have higher and higher requirements for the quality of life, and they pay more and more attention to the enjoyment of cultural entertainment, especially film and television entertainment. Projection is an essential technical element in film and television entertainment. With the rapid development of screen display technology, projection screens are no longer rigid and high-thick traditional LCD screens, nor are they traditional black and white screens. The projection screen is designed to be thinner and thinner, and the size can be adjusted arbitrarily, making projection a simple and convenient display method. However, the expensive price of laser projection screens and laser projectors makes projectors not widely used in ordinary families. appli...

Claims

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Application Information

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IPC IPC(8): G02B5/02G02B5/128G03B21/60
CPCG02B5/0226G02B5/0268G02B5/128G03B21/60
Inventor 严志雄周守发王增敏郑宇翔李彩翠黄永华孙晶晶储佳佳
Owner HEFEI LUCKY SCI & TECH IND
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