Introduction And Characteristics Of Ps Diffuser Plate

PS diffuser sheet definition

PS diffuser plate is a kind of material with light diffusing properties in PS (polystyrene) sheet type. The optical characteristics of plastic sheets such as light transmittance and refractive index can effectively convert point or line light sources into soft and uniform surface light sources. On the premise of achieving good light transmittance, it also has good light source lattice shielding. , and the price is relatively affordable, so it is widely used in the booming LCD-TV and LED lighting products, adding a choice of optical diffusion materials for the secondary light distribution of LED lighting products.

PS diffuser Sheet

The principle of PS diffuser

Through chemical or physical means, using the physical imagination of refraction, reflection and scattering when light encounters two media with different refractive indices on the way, by adding inorganic or organic light diffusing agents, or Through the array arrangement of the micro-features on the surface of the substrate, the light is artificially adjusted, so that the light is refracted, reflected, and scattered in different directions, and then the travel route of the light is changed, and the incident light is filled and diffused to produce the effect of optical diffusion.

Features of PS diffuser

1. Relatively speaking, the price is low; the weather resistance is worse than that of PMMA, and it is brittle and yellowing is more obvious when used in outdoor moisture and ultraviolet environments; the specific gravity is about 1.05, which is lighter than PMAM (1.2) and PP (0.96); Suitable for machining and thermoforming; considering the ease of melting, it is not recommended to do laser cutting.

2. The surface is frosted, with stable wear resistance and scratch resistance. It is recommended to use an ambient temperature of 60-80 degrees. Good dimensional stability, the shrinkage rate of mold making is within 0.45% scale. It has good surface antistatic function to prevent dust adsorption.

3. Light transmittance: 60%-80% (scale adjustable). PS diffuser is widely used in liquid crystal display, LED lighting and imaging display systems. Its main function is to fill and diffuse the incident light to achieve a softer and more uniform irradiation effect.

PS diffusers are extremely widely used in some modern lighting industries. However, some of its functions and application potential have not been fully developed.