GLASS PLATE CUTTING APPARATUS

摘要

PURPOSE: A glass plate cutting apparatus and a display panel prepared by using a glass plate cut by the apparatus are provided, to cut a glass plate stably and cleanly by using a laser beam. CONSTITUTION: The glass plate cutting apparatus comprises a cracking means which gives micro-crack to the cutting starting point of a glass plate; an irradiation heating means by a laser beam absorbed to at least one glass material; a cooling means by cooling fluid after at least one laser beam irradiation; and a breaking means, wherein the laser beam generates a scribe line(17) by a first carbon dioxide gas laser beam irradiation means, a first control means controlling the plate irradiation density to be 0.05-2 J/mm2 to the irradiation area of 20-200 mm2 and a first cooling means by cooling fluid set in back of the first carbon dioxide gas laser beam irradiation means, and the glass plate where the scribe line is formed is broken. Preferably the breaking is carried out by using a second carbon dioxide gas layer beam set in back of the first cooling means.