A control system for an air conditioner is configured that can wirelessly transmit control signals, and allow the output power settings of transceiver units arranged in the outdoor unit and indoor units to be reduced. One method includes defining a screen display having one or more components. The origination unit is configured to generate an origination packet containing a voice frame, and to transmit the origination packet utilizing a wireless non-circuit-switching service of network. Also, in a further aspect the present invention provides an injector device modified to be used with andor inject through an endoscopic device. An organic light emitting device including an anode 2, a cathode 4 and an organic compound layer sandwiched between the anode 2 and the cathode 4, wherein at least one diindenopicene compound represented by general formula 1 described below is contained in the organic compound layer:. The invention also concerns a method for controlling the lighting of an apparatus of the aforementioned type.