Multi-layered light guide plate without using optical films

Abstract

A multi-layered light guide plate (LGP) with optimized reflective prism structure is employed to out-couple the light toward the normal-view direction. A prototype is manufactured by UV embossing replication. The luminance angular distribution of the multi-layered LGP shows the emitting light can be well-controlled, and a sheetless LGP is feasible.