Patent ID: 7016753

Claim:
A management method for a production line of a display device, comprising: storing a plurality of substrates in a carrier provided with memory means; and conveying said carrier in which said plurality of substrates are stored to a manufacturing apparatus, wherein identification information of each of said plurality of substrates stored in said carrier and a lot number of each of said plurality of substrates are stored in said memory means magnetically, wherein said identification information of each of said plurality of substrates and said lot number of each of said plurality of substrates stored in said memory means are read in said manufacturing apparatus by a reading means and sent to a host computer together with identification information of said manufacturing apparatus, wherein a memory in which a recipe number in each process of each lot is stored is provided in said host computer, wherein said host computer uses said identification information of each of said plurality of substrates, said lot number of each of said plurality of substrates and said identification information of said manufacturing apparatus to read out a recipe number corresponding to each of said plurality of substrates and sends the recipe number to said manufacturing apparatus, wherein said manufacturing apparatus processes each of said plurality of substrates in accordance with a recipe corresponding to said recipe number sent from said host computer among said plurality of recipes stored in said memory provided in said manufacturing apparatus, wherein when there is no recipe for one of the plurality of substrates corresponding to the recipe number sent from the host computer in the memory provided in the manufacturing apparatus, the substrate is removed from the lot, wherein the substrate which has been removed from the lot is conveyed in the carrier with other substrates, and wherein the memory means stores an information that the substrate has been removed from the lot.