High-brightness and high-coverage composite optical film

A high-brightness and high-coverage composite optical film comprises at least one diffusion film and at least one brightness enhancement film; the diffusion film and the brightness enhancement film are compounded together through an adhesive. The diffusion film comprises a transparent base material, a diffusion particle coating layer and a resin coating layer. The high-brightness and high-coveragecomposite optical film provided by the invention has excellent optical performance, the coverage effect of the composite optical film is improved, meanwhile, the brightness is excellent, the surfaceof the diffusion film can be relatively smooth by virtue of the resin coating layer, and when the diffusion film is in contact with other components, more scratches caused by a concave-convex structure of the diffusion film are avoided, and it can be guaranteed that the composite optical film is not prone to being scratched. 一种高辉度高遮盖的复合光学膜，包括至少一层扩散膜和至少一层增亮膜，所述扩散膜和增亮膜通过胶黏剂复合在一起。所述扩散膜包括透明基材，扩散粒子涂层，树脂涂层。本发明提供的高辉度高遮盖的复合光学膜具有优异