Product management method, program for performing product management, and storage medium having recorded the program therein

摘要

A product management method for securing interests of a just rightful claimant of an intellectual property right is provided. The product management method is a product management method for a display module including a circuit formed by integrating a transistor which is formed using a thin film semiconductor on an insulating substrate, which, in a manufacturing process of the transistor, forms characters, a figure, a symbol, or a numeral, or a combination thereof on any one of thin films constituting the transistor, indicates attribution of an intellectual property right pertaining to the display module according to the characters, the figure, the symbol, or the numeral, or the combination thereof, and secures interests of a just rightful claimant of an intellectual property right.