Application of anti-blue light film, anti-blue light film and its preparation method and application

An anti-blue light and film technology, applied in the field of anti-blue light, can solve the problems of affecting product life, complex preparation process, secondary damage to human eyes, etc., and achieve the effect of avoiding secondary damage, good chemical stability, and maintaining color balance

Active Publication Date: 2021-06-18
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In terms of anti-blue light film, there are currently two main types of anti-blue light methods. The first type is to reflect blue light of a specific band through optical film design methods. However, the preparation process of reflective anti-blue light film systems is complex, difficult and expensive. High, and the reflected blue light may have the potential to cause secondary damage to human eyes
The second type is to prepare an anti-blue light film by using blue light-absorbing materials. In the prior art, some organic materials or inorganic nanoparticles are mixed into a polymer substrate to form a film to absorb blue light. Materials or polymer substrates will affect the life of the product due to aging and other reasons, and most of them need to add an additional protective layer to increase the service life of the product

Method used

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  • Application of anti-blue light film, anti-blue light film and its preparation method and application

Examples

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preparation example Construction

[0031] The present invention provides a method for preparing the anti-blue light film described in the above scheme, comprising the following steps:

[0032] (1) Bi(NO 3 ) 3 ·5H 2 O, NH 4 VO 3 , citric acid and a solvent are mixed to obtain a mixed material liquid after the reaction;

[0033] (2) the mixture liquid is mixed with monoethanolamine, and the bismuth monoclinic vanadate precursor solution is obtained after the reaction;

[0034] (3) the monoclinic bismuth vanadate precursor solution is coated on the surface of one side of the glass cover plate, after being dried and annealed successively, the first film layer is formed on the surface of the glass cover plate side;

[0035] (4) The monoclinic bismuth vanadate precursor solution is coated on the surface of the other side of the glass cover plate, and after being dried and annealed successively, a second film layer is formed on the surface of the other side of the glass cover plate to obtain an anti- Blu-ray fil...

Embodiment 1

[0051] like figure 1 As shown, the anti-blue light film of this embodiment includes a glass cover plate 1, a first film layer 2 and a second film layer 3, and the first film layer 2 and the second film layer 3 are respectively deposited on both sides of the glass cover plate 1 .

[0052] The preparation method is as follows:

[0053] Bi(NO 3 ) 3 ·5H 2 O, NH 4 VO 3 Add citric acid and citric acid into a mixed solvent of acetic acid and DMF at a molar ratio of 1:1:4 (the volume ratio of acetic acid and DMF is 20:80), stir and react at 40°C for 2 hours, and obtain a sky blue mixed material liquid;

[0054] Slowly add monoethanolamine dropwise into the mixed material liquid, stir and react at 40°C for 12h, until the color of the solution turns dark blue-green, add the mixed solvent of acetic acid and DMF to the above solution (wherein, for the first film layer 2, supplemented The volume ratio of acetic acid and DMF in the mixed solvent is 10:90; For the second film layer 3,...

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Abstract

The invention relates to the technical field of anti-blue light, in particular to an anti-blue light film and its application, an anti-blue light film and its preparation method and application. The invention provides an anti-blue light film, and the composition of the anti-blue light film is bismuth monoclinic vanadate. The present invention uses bismuth monoclinic vanadate as the material of the anti-blue light film. Bismuth monoclinic vanadate is non-toxic and has good chemical stability. Therefore, the anti-blue light film of the present invention has strong stability and can meet the requirements of long life of display products and multi-environmental applications. Require. In addition, the present invention uses bismuth monoclinic vanadate as the material of the anti-blue light film, which can effectively absorb most of the harmful blue light while retaining most of the beneficial blue light in other bands, ensuring the high transmittance requirements of other visible light remaining bands, and maintaining The color balance of transmitted light, while avoiding the secondary damage of reflected blue light. In addition, the anti-blue light film of the present invention has a nano-scale thickness, which is more suitable for the development of flexible and large-area displays in the future, and has extensive and convenient applications in display and lighting.

Description

technical field [0001] The invention relates to the technical field of anti-blue light, in particular to an anti-blue light film and its application, an anti-blue light film and its preparation method and application. Background technique [0002] At present, mobile phones, computers, tablets, TVs and other display products and lighting equipment have increasingly penetrated into people's daily life. As one of the three primary colors of light, blue light (400nm-500nm) is essential in full-color display and white light illumination. An appropriate amount of blue light is not only necessary for the color rendering of the light source, but also conducive to the regulation of human biological rhythms. However, long-term exposure to blue light may cause visual fatigue, affect the secretion of melatonin and affect people's sleep quality, and may also induce the occurrence of diseases such as cancer, retinopathy, cataract and age-related macular degeneration. Therefore, in today...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C17/22G02B5/20
CPCC03C17/22C03C2217/732C03C2218/116C03C2218/32C03C2218/365G02B5/20
Inventor 张建华
Owner SHANGHAI UNIV
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