アクリルライトガイドプレート：材料、作業原則、製造方法

1.What is light guide plates?

Light guide plates are made using optical-grade acrylic sheets, which are then coated with a high-tech material that has a high reflectivity and does not absorb light. Using UV screen printing technology, light-guiding dots are printed on the underside of the optical-grade acrylic sheets.

2.What is the material used for acrylic light guide plates:

The primary material for acrylic light-guiding plates is optical-grade acrylic sheet. Currently, acrylic light-guiding plates produced by different manufacturers using different processes vary in quality. In particular, raw sheets, though inexpensive, tend to yellow and have poor light transmission. When producing acrylic light-guiding plates, it is essential to use transparent sheets that are resistant to yellowing and have a light transmission rate of 92%-93% or higher.

Currently, light guide panel on the market are made from two types of materials: acrylic sheets and PC sheets. However, acrylic sheet-based light guides are more common, while PC sheet-based light guides are less common and typically require custom manufacturing, and not all light guide manufacturers produce them.

3.How does an acrylic light guide plate work?

Light guide plates are made using optical-grade acrylic sheets. High-tech materials with high reflectivity and low light absorption are then used to print light guide points on the bottom surface of the optical-grade acrylic sheets using UV screen printing technology.

The optical-grade acrylic sheet absorbs light emitted from the lamp and retains it on its surface. When light hits the light-guiding points, the reflected light spreads in various directions, breaking the reflection conditions and exiting through the front of the acrylic light-guiding plate.

By using light-guiding points of varying densities and sizes, the acrylic light guide plate can emit light uniformly. The reflective sheet is used to reflect the light emitted from the bottom back into the acrylic light-guiding panel, thereby improving the efficiency of light utilization.

There are primarily two methods for manufacturing acrylic light guide panels:

screen printing and non-printing. Screen-printed light-guiding panels require minimal investment, no equipment, and can be manually operated, resulting in low costs, high production efficiency, and simple technical processes.