| 摘要 |
PURPOSE:To efficiently obtain a face light source panel with an optical diffusion layer on the surface in a reduced processes by a method wherein injection or compression molding is performed in such a way that a molten thermoplastic resin layer is laminated on the optical diffusion layer side of a film and the base resin layer is peeled off from a molded item. CONSTITUTION:An optical diffusion film 1 is fed from a film roll and is placed in such a manner that a base resin layer is brought into contact with a cavity face of a fixed mold 12 and molds 5 and 12 are clamped. Then, the optical diffusion film 1 is pinched and fixed between a film holder 10 and a film fixing channel 14 and the optical diffusion film 1 is extended by feeding heated compressed air into a mold cavity 15 and the film 1 is brought into tight contact with a fixed insert 9 and a heated and molten, e.g. polymethyl methacrylate resin is injected and filled into the cavity 15. Thereafter, when the molten resin is solidified by cooling and the mold is opened, the optical diffusion layer being tightly adhered on the surface of the molded item is transferred with high accuracy and only the base resin layer is peeled off from the front face part of the molded item. |
