What Is The Main Material Of The Backlight Diffuser Film
Feb 22, 2022
The main material of the backlight diffuser film is PET material, which mainly refers to the backlight source part applied to the LCD module.
When the light passes through the diffusion layer with PET as the base material, it will pass through the medium with different refractive index, so that the light will undergo many phenomena of refraction, reflection and scattering, and the light can be corrected into a uniform surface light source to achieve the effect of optical diffusion. According to the classification of LCD displays, there are two types: side-projection type and direct-type type. The diffusion material used for side-projection type is called diffusion film (or diffuser); in the direct-type backlight source, two types of diffusion materials are used, one is One is a diffuser film and the other is a diffuser plate. The important indicators of the diffuser film are total light transmittance and haze. The function of the diffuser film is to provide a uniform surface light source for the liquid crystal display.
