A Light Guide Plate (LGP) is a core optical component used in liquid crystal displays, LED lighting and other industries to achieve uniform surface light sources. Based on the optical total internal reflection principle and precisely designed microstructures, an LGP converts linear or point light sources emitted by edge light sources (such as LED strips) into evenly distributed planar light. This article systematically elaborates on the working principle, core materials, mainstream manufacturing processes, key optical indicators, typical applications and industry development trends of light guide plates.

激光导光板是一种利用激光技术制造的高效能光学器件，其原理基于光学的全反射和全折射现象。这种导光板通常由高折射率的材料制成，如亚克力或玻璃，其表面经过精密的加工，形成微细的光学结构。