Commonly used light diffusers include inorganic particles such as TiO2, BaSO4, SiO2, CaCO3, Al2O3, and glass beads, as well as organic polymer particles such as PS and silicone resin.
Then,how to chose the Light Diffusion Materials?
LED is a point light source. In practical applications, it is usually necessary to transform it into a line light source or a surface light source to make the light bright and soft. To achieve this transformation, it is inseparable from an indispensable light diffusion material. Light diffusion materials are generally composed of light diffusion agent and polymers, which are supplied to the market in the form of light diffusion plastics, light diffusion encapsulant, light diffusion coating and ink. How’s the dosage ratio and particle size of light diffusion agent affect the effect of light diffuser? let’s discuss together
At present, the diffuser plate is an important optical diffusion part inside the TV set, which can distribute the light emitted by the LED in the TV set uniformly. It can make the light of LED in the TV set evenly distributed. In this paper, transmittance (T.T.), fog degrees (HAZE) and brightness (Lv) three aspects were studied, the main and auxiliary materials including GPPS, organic silicon light diffusion agent, inorganic optical diffusion agent and anti-aging agent were analyzed, and several kinds of organic and inorganic optical diffusion agents were compared and analyzed. The results showed that when the organic silicon light diffusion agent dosage was 0.6%~0.8%, the inorganic optical diffusion agent was 0.15%, the transmittance reached (43±3) %, the fog degree was up to 99.4%.
The optical properties of the materials are determined by the amount of light diffusion agent, particle size and distribution, and refractive index. The indexes to evaluate the optical properties of light diffusion materials include full light transmittance, haze, and dispersion. The degree of dispersion refers to the angle at which the relative transmittance is 50%. How to achieve high transmittance and haze of astigmatic materials ?
As all to know light diffusion agent mainly used for LED light industry , diffuser sheet and additive materbatch. what other other uses of light diffusion agent? today let me tell you details:
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