Reflective near-ultraviolet cut-off diffusion film

A near-ultraviolet, reflective technology, applied in the direction of diffusion elements, optics, instruments, etc., can solve the problems of high equipment investment, complex process, high cost, etc., and achieve the effect of high light transmittance, simple manufacturing process and wide application range

Inactive Publication Date: 2019-04-30
苏州艾科迪新材料科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to overcome the complex process of the existing near-ultrav

Method used

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  • Reflective near-ultraviolet cut-off diffusion film
  • Reflective near-ultraviolet cut-off diffusion film

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Embodiment Construction

[0023] The technical solution of the present invention will be further described below in combination with specific embodiments.

[0024] 1. First put the tin foil on the flat iron plate and put it in the oven, bake it to 70-90°C (the actual normal is 75-80°C);

[0025] 2. Get 10 parts of 5% nitroaniline next, 10 parts of chiral polymerizable monomer (a), 10 parts of achiral polymerizable monomer (b), PMMA resin microsphere (average particle diameter is 10 microns) 20 parts 0.6 part of initiator perketene silane acetal, 0.1 part of leveling agent Solvesso150, 20 parts of cyclohexanone, 100 parts of toluene, 0.2 part of curing agent DACH, stir and mix the above materials evenly to obtain a near-ultraviolet cut-off polymer Coating solution, use RDS4# wire rod (wet film gap 10μm), control the wet film thickness to 2-20μm and evenly coat it on 50μm PET without any HC or primer;

[0026] 3. After the coating is completed, put the wet film on the tin foil or iron plate of the oven,...

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Abstract

The invention relates to a reflective near-ultraviolet cut-off diffusion film, which comprises a substrate and a near-ultraviolet cutoff diffusion layer fixedly arranged on a single surface of the substrate. The near-ultraviolet cutoff diffusion layer is formed by coating and fixing photonic crystal particles or microspheres and a polymer coating having a reflection function on the surface of thesubstrate. The diffusion film is assembled by utilizing a high-molecular structure; and through control of combination of different polymer monomers, initiator dosage and initiating conditions, molecular density gradient difference is formed, high-molecular polymer internal high-low refractive index difference is realized, high and low refractive index matching is realized, partial reflection in 400-450nm band is achieved and a near-ultraviolet cut-off function is realized. A preparation method of the film is cheap in price and simple in process, and only one layer of molecular coating needs to be coated on the surface of the substrate, thereby helping to realize industrialization. The prepared reflective near-ultraviolet cut-off diffusion film can be widely applied to a display screen orlighting near-ultraviolet cutoff, and can also be used for improving color gamut and light source intensity.

Description

technical field [0001] The invention relates to a reflective near-ultraviolet cut-off diffusion film for display screens or lighting. Background technique [0002] The role of the diffusion film is to homogenize the light source and correct the light source. It is widely used in backlight modules of flat panel displays and new lighting sources, such as TVs, computer monitors, notebook computers, mobile phones, digital cameras, MP4 players, GPS navigators and various daily and industrial lighting sources. [0003] A large amount of blue light exists in computer monitors, fluorescent lamps, mobile phones, digital products, display screens, LEDs, etc. The blue light within this wavelength will increase the amount of toxins in the macular area of ​​the eye, seriously threatening our eye health. Among them, short-wave blue light with a wavelength of 400-450nm is the most harmful to the retina. [0004] At the 2010 Annual Meeting of the International Optical Society, the world's...

Claims

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Application Information

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IPC IPC(8): G02B5/26G02B1/00G02B5/02
CPCG02B1/00G02B5/02G02B5/26
Inventor 严生吴文杰其他发明人请求不公开姓名
Owner 苏州艾科迪新材料科技有限公司
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