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Blue light prevention film and application thereof, and blue light prevention diaphragm, preparation method and application thereof

An anti-blue light and film technology, applied in the field of anti-blue light, can solve problems such as difficulty, secondary damage to human eyes, complex preparation process, etc., and achieve the effect of maintaining color balance and avoiding secondary damage

Active Publication Date: 2020-06-26
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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  • Blue light prevention film and application thereof, and blue light prevention diaphragm, preparation method and application thereof

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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] Such as 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...

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Abstract

The invention relates to the technical field of blue light prevention, particularly to a blue light prevention film and application thereof, and a blue light prevention diaphragm, a preparation methodand application thereof, and provides a blue light prevention film, which is prepared from monoclinic bismuth vanadate. According to the invention, monoclinic bismuth vanadate is used as the materialof the blue light prevention film, and is non-toxic and good in chemical stability, so that the blue light prevention film provided by the invention is strong in stability, and can meet the requirements of long service life and multi-environment application of display products; by using monoclinic bismuth vanadate as the material of the blue light prevention film, most harmful blue light is effectively absorbed, most beneficial blue light of other wave bands can be reserved, the high transmittance requirement of other visible light remaining wave bands is ensured, the color balance of transmitted light is kept, and secondary damage of reflected blue light is avoided; and the thickness of the blue light prevention film is nanoscale, so that the blue light prevention film is suitable for development of flexible and large-area display in the future, and has universality and convenience in display and illumination application.

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 Applications(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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