Preparation process of composite diffusion plate

Abstract

The invention relates to the technical field of illumination, in particular to a preparation process of a composite diffusion plate; the preparation process comprises the following steps: step 1, PS or PP is selected as raw materials, and 1 to 1.35 parts of light diffusion powder and 1 to 4 parts of a composite additive are added into the raw materials by weight, and mixing and stirring are performed to form 100 parts of mixture by weight; step 2, an extrusion process is adopted, and the mixture is added into an extrusion forming machine to be extruded to form a diffusion plate; step 3, an embossing roller with suitable decorative patterns is selected to carry out knurling processing on the diffusion plate; step 4, light diffusion coating is coated on the diffusion plate through a coatingmachine; and step 5, the light diffusion coating is cured and shaped by adopting a UV coating process and is compounded with the diffusion plate to form the composite diffusion plate. The light diffusion coating is compounded with the diffusion plate after being subjected to UV curing to form the composite diffusion plate, so that the structure of the existing double-layer composite diffusion plate having the diffusion plate and the diffusion sheet is replaced, and the cost is lowered; and the prepared composite diffusion plate is higher in structural stability, high in light transmittance andhigh in atomization effect.

Description

technical field [0001] The invention relates to the technical field of lighting, in particular to a preparation process of a composite diffuser plate. Background technique [0002] The light diffusion plate is also called uniform light plate and light expansion plate. It has the characteristics of high light diffusion, high light transmittance and good ability to block light sources. It is an important component in the field of LED lighting and flat panel display. The light diffusing plate can play a role of shading and can block the passage of light. Generally, the better the light diffusing property of the light diffusing plate, the lower the light transmittance. [0003] Since the light transmittance and atomization effect of the single-layer diffuser plate are difficult to improve at the same time, a high-shading backlight module is required, and the increase in the haze of the diffuser plate will reduce the luminance of the entire module, so the composite structure The...

AI Technical Summary

Problems solved by technology

[0003] Since the light transmittance and atomization effect of the single-layer diffuser plate are difficult to improve at the same time, a high-shading backlight module is required, and the increase in the haze of the diffuser plate will reduce the luminance of the entire module, so the composite structure The diffuser plate has become the solution to this problem, and the current solution is to solve the problem that the light transmittance and haze are difficult to improve by stacking a multi-layer diffuser plate and a light bar to form a backlight module, but at the same time stacking a multi-layer diffuser plate way will lead to an increase in production costs

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