2, light guide plate The function of the light guide pl […]
2, light guide plate
The function of the light guide plate is to convert the light emitted by the LED point light source into a surface light source through optical technology, and refract the side LED light through the dots to make the light uniformly derived from the front. Currently, printed light guide plates are mainly used. The quality of the light guide plate will directly affect the brightness and uniformity of the product, and requires good light transmission performance. The light guide plate is the key point of the quality control of the LED flat panel light. The design of the outlets is not good, the overall light efficiency obtained is poor, the light is not uniform, and there will be dark on both sides of the middle, bright bands at the entrance, visible dark areas, different Inconsistent angular brightness. To improve the light efficiency of the light guide plate mainly depends on the design of the dots, followed by the quality of the plate, it is appropriate to choose a qualified plate with high light transmittance.