| 摘要 |
The objective of the invention is to produce a light guide plate on which shapes such as dot patterns can be accurately applied, and, despite being thin, has high strength, is readily handled, and can be put into practical use. The production method for a polycarbonate light guide plate comprises steps of: rotating a first roll and a second roll while sandwiching a sheet-form polycarbonate between a flexible support and the second roll so as to apply pressure while co-transporting the flexible support, thereby pressing the sheet-form polycarbonate against the second roll; and causing the sheet-form polycarbonate pressed against the second roll and supported on the surface of the second roll by the flexible support to be transported in the rotation direction of the second roll, and separating the sheet-form polycarbonate from the flexible support, at a position where the rotation angle of the second roll is 45 to 150°, as referenced from the position where the surfaces of the first roll and the second roll are closest to one another. |
