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What are the three categories of functional PET optical film coatings?

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2022/07/28

According to the role played by the coating, coatings can be divided into three categories, namely protective coatings, decorative coatings and functional coatings. Coating different coatings on PET polyester film can make films with different functions, for example, coating the surface of PET polyester film with anti-scratch and anti-static (106~108Ω) coatings to make screen PET Protective film, used to protect the surface of mobile phone or computer screen. Coating a coating containing optical particles or glass microbeads on PET polyester film can be made into an optical diffuser film, which can be used for LCD panel backlight module, which can effectively Eliminate the phenomenon of interlaced light and dark or dots, improve the brightness of light, and provide a uniform surface light source for LCD panels. Coating a resin system with particle components on the surface of PET polyester film can be made into anti-glare film, which can be used in LCD panels. It has the effect of preventing screen smearing by utilizing the scattering of reflected light and the internal scattering caused by the difference in refractive index between the hard coat resin and the particles.