MANUFACTURING METHOD OF RESIN SHEET

摘要

PROBLEM TO BE SOLVED: To provide a manufacturing method of a resin sheet capable of being formed into a desired cross-sectional shape when the resin sheet large in thickness distribution in its width direction at the time of molding is manufactured and especially suitable for use in the light guide plate or optical element of every kind arranged to the back of a display device of every kind. SOLUTION: The sheetlike resin material 14 extruded from a die 12 is held under pressure between a mold roller 16 and a nip roller 24 to transfer the uneven shape formed on the surface of the mold roller 16 to the resin material and the resin material after transfer is trained over the nip roller 24 to be peeled while a radiation curable resin material 74 is applied to the non transfer surface of the resin material after peeling and irradiated with radiation to be cured. COPYRIGHT: (C)2007,JPO&INPIT