LIQUID CRYSTAL DISPLAY UNIT-USE GLASS SUBSTRATE AND METHOD OF PRODUCING MOTHER GLASS AND MOTHER GLASS INSPECTION DEVICE

摘要

Yields with which to produce a mother glass and a liquid crystal display unit-use glass substrate can be enhanced, and the costs of a mother glass and a liquid crystal display unit-use glass substrate can be lowered. A method of producing a mother glass satisfying a specified quality standard by producing and selecting a mother glass capable of being obtained by cutting a liquid crystal display unit-use glass substrate according to specified cutting arrangement information, the method comprising the defect measuring step S2 of measuring defects present in the produced mother glass to determined defect information including the position information of the defects, and the defect evaluation step S3 of evaluating quality information determined from the defect information and the cutting arrangement information by specified evaluation criteria to evaluate the quality of the mother glass.