An IMS batch application, originally coded to execute as a DLIDBB batch application, executes on a computer system as either a Batch Message Processing batch application or as the DLIDBB batch application. It is another object of the invention to provide a method for manufacturing a display device in which penetration of water into the inside of the display device through a film having high moisture permeability can be suppressed without increasing processing steps considerably. The use of suction to extract the follicular unit allows for distribution of the forces over a large area of the unit, helping to keep the unit intact. The controller regulates the opening degree of the heat-source-side expansion valve on the basis of the opening degrees of the usage-side expansion valves.