3D lenticular PET sheet is a plastic sheet that exhibits three-dimensional visual and dynamic effects. Based on PET plastic, its surface is processed with a precise lenticular lens structure, creating 3D, inverted, and depth-shifting effects at different angles. Compared to ordinary PET sheet, PET lenticular sheet differs in its surface, optical properties, and processing applications. PET lenticular sheets are primarily used in 3D advertising, 3D photo albums, and 3D registration printing.