Methods, systems, and computer-readable storage media for minimizing downtime during maintenance procedures to an application. It exhibits uniform, upright to climbing growth with abundant flowers. Thus, progression rates of agings of the monitoring element Ex and the EL elements E1 arranged in the display panel can be controlled to roughly coincide with each other, and a power loss generated in a light emission drive transistor Tr2 in each pixel 10a can be restrained as much as possible. The indicators provide detectable guides along which the sheet of shim stock can be disunited to remove desired excess portions of the sheet of shim stock in order to provide a resultant shim having a transverse size that is suited for use in conjunction with a particularly accessory. A second fastener securely, yet detachably, connects the second end of the guide pin with the die pad.