Method for repairing white defect of liquid crystal display panel

A method for repairing white defect of liquid crystal display panel, comprising the following steps:

• (1) providing a laser repairing platform and a liquid crystal display panel that contains a white defect to be repaired, wherein the white defect contained liquid crystal display panel comprises a substrate, a first insulation layer formed on a common wiring layer, a metal layer formed on the first insulation layer, a second insulation layer formed on the metal layer, and a transparent conductive layer formed on the second insulation layer;
• and
• (2) applying the laser repairing platform to carry out multi-spot welding on the common wiring layer, the metal layer, and the transparent conductive layer at a single location corresponding to the white defect of the white defect contained liquid crystal display panel so as to have the common wiring layer, the metal layer, and the transparent conductive layer electrically connected with the multiple welding spots, wherein the welding is carried out by melting a metallic material corresponding to the metal layer;
• and
• wherein the substrate is a glass substrate;
• wherein the first and second insulation layers are silicon oxide layers;
• and
• wherein the metal layer is one of an aluminum layer, a molybdenum layer, and a copper layer;
• wherein the transparent conductive layer is an indium tin oxide layer.