| 摘要 |
A method according to the present invention comprises a cutting step of laser cutting a plate glass (G) in the vicinity of a line to be cut (X) and in a manner parallel to the line to be cut (X) so as to form a tensile stress area (W) at positions along the line to be cut (X), and an initial crack forming step of forming an initial crack (C) at an intersection between the line to be cut (X) and an end part (Gs) of the plate glass (G), wherein prior to the execution of the cutting step, a processing step is performed on the end part (Gs) of the plate glass (G) including the line to be cut (X) to prevent cuts that naturally occur due to tensile stress during laser cutting. |
