A technique for discovering the topology of a computer network and which relies on initially resolving the positions of end stations on the network and subsequently resolving the topology of remaining devices. A setting means sets output parameters which are parameters related to reproduced data output for each reproduced data. The micro-resonator structure raises the directivity of a radiation pattern, and improves the light extraction efficiency of each of the organic luminescent elements. or less and has good piezoelectric characteristics, in particularly good longitudinal elongation and a low dielectric loss factor, even at a high Curie temperature, as well as a good electromechanical coupling factor. Each color plane is depleted separately, but subject to the same depletion rules and masks.