Patent ID: 8395747

Claim:
A method for repairing a glass substrate that is used in a liquid crystal display panel of a flat panel display and that has a depression in a surface thereof, the method comprising a hole plugging step of causing the depression in the surface of the glass substrate to be filled with a transparent resin that is at least either a cross-linked epoxy resin or a cross-linked (meth)acrylic resin, the transparent resin having a size of maximum birefringence of not more than 0.0005 wherein the size of maximum birefringence is defined by a greatest difference between two refractive indices among refractive indices of the transparent resin obtained with respect to three orthogonal axes, the hole plugging step including filling the depression with a photoinitiator and with plural types of starting materials for the transparent resin, wherein a single type of the starting materials has a polymerization percentage not exceeding 90 weight-% of all the starting materials, and then irradiating the starting materials and the photoinitiator with light to cause random copolymerization.