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Haining Rishine LED Lighting Co.,Ltd

Tel: 86-573-87097218

Phone:Peter 13515831929


Add: No.27 Shijing Rd, Economic Development Zone, Haining, Zhejiang

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A Simple Distinction Between The Diffuser Plate And The Light Guide Plate Of The LED Panel
Feb 20, 2018

LED diffuser and guide plate function and function, they are completely different.

To differentiate from material:

Diffusion plate common substrate is PC (polycarbonate)

Diffusion plate is mainly through the luminous flux, so that the distribution of light evenly, the main principle is penetrating through other media caused by scattering phenomenon, the diffuser has a unique advantage is that there are three physical phenomena. As a result of the surface abrasive treatment of the diffuser plate, the visual effect of high-grade beautiful, wear-resistant, scratch-resistant performance and stable UV-resistant, good weather resistance, at 80 degrees Celsius below can be used for a long time, so the popular favorite.

Light Guide plate Common base material is PMMA (acrylic)

Light Guide plate is a kind of acrylic material in optical material, it is a high factor material with high reflectivity and no absorption the use of optical-grade acrylic sheet to draw light from the light on the surface of the optical plate to stay, when the light reflected to the point of light, reflected light will spread in all directions, and then destroy the reflection conditions, After multi-layer reflection formed a variety of density, the shape of a unified point, you can make the LED guide plate can emit uniform light, reflective film is mainly used to put on the bottom surface to improve the use of light efficiency.

From functional differentiation:

The main function of diffusion plate:

① Scatter luminous flux, let the light evenly distributed (part of the composite diffusion plate in addition to let the light uniformity, but also can control the ejection angle)

② supports backlight structure to protect optical material below damage

Guide Plate main function:

The luminous flux of ① led point Light source is evenly distributed throughout the face. His key role is to guide the distribution of light.

② utilizes the reflection mechanism to use the luminous flux more efficiently and tocontrol the light distribution.

Application Range Differentiation:

① Light Guide Plate (PMMA acrylic) is suitable for direct light source LED lighting lamps, such as grille lights, high-grade aluminum lamps.

② Diffusion Plate (PC polycarbonate) is suitable for side light LED lighting, such as flat light, professional viewing light, usually used with guide plate, which is mainly used for low grade ordinary LED lights.