In a top emission type organic EL display device, brightness gradient in a screen is reduced while keeping a screen brightness. The memory controller also receives memory output signals output from the memory chips through the common bus, and converts the received signals into controller input signals receivable to the controller. For each of the bid requests, a commitment window including a kernel specifying a time period required for processing the workpiece is generated. For example, the supplier device includes upstream storage means for storing the strip of rubber from which the strip is moved toward the extruder, and downstream storage means in which the residue is stored. The secondary line section has a volume of less than twice the volume of the reactor loop. The numbers N of the diodes 441 have to follow the condition of:.