METHOD FOR REDUCING RESIDUAL STRESS OF GLASS SUBSTRATE, AND DEVICE FOR REDUCING RESIDUAL STRESS OF GLASS SUBSTRATE

摘要

The present invention relates to a method for reducing residual stress of a glass substrate, and a device for reducing residual stress of a glass substrate. The residual stress of the glass substrate integrated with a material having low heat resistance such as a resin is reduced. In addition, the residual stress can be reduced even before destruction of the glass substrate, which is usually broken within a few minutes due to high residual stress. The method for reducing residual stress of the glass substrate (G) comprises a laser beam scanning step for reducing the residual stress by scanning a laser spot (S) at a portion where the residual stress of the glass substrate (G) is high.;COPYRIGHT KIPO 2019