| 摘要 |
PROBLEM TO BE SOLVED: To provide a resin sheet manufacturing method capable of obtaining a desired cross-sectional shape when a resin sheet large in the thickness distribution in its width direction at molding is manufactured and manufacturing the resin sheet especially suitable for use in the light guide plate or various optical elements arranged on the back of various display devices. SOLUTION: The sheetlike resin material 14 extruded from a die 12 is held under pressure by a mold roller 16 and the nip rollers 18, 20 and 22 arranged in opposed relation to the mold roller and the uneven shape on the surface of the mold roller is transferred to a resin material. Then, the resin material is wound around the peeling roller 24 arranged in opposed relation to the mold roller to be peeled from the mold roller. COPYRIGHT: (C)2006,JPO&NCIPI |
