| 摘要 |
An optical sheet having both a light condensing function and a light diffusing function in a single sheet is to be provided. When a transparent support (18) on which a curable resin coat layer (38) is formed is wound around a zigzag-faced roller (32) on which the reversed pattern of convex-concave patterns is formed to transfer the reversed pattern of the zigzag-faced roller (32) to the resin coat layer (38), gas is blown from a gas jet nozzle (50), immediately before winding the transparent support (18) around the zigzag-faced roller (32), into a gap between the resin coat layer (38) and the surface of the zigzag-faced roller. |
