Public building large screen display device

The utility model relates to a public building large screen display device is arranged on printed circuit board including a plurality of display panel's transmitter, be used for through display panel's selectivity scintillation luminous body organic light emitting display's the character and the display element of image, display element's controlling means for the control of scintillation luminous body, display element, including illuminance detection device, be used for measuring the demonstration controlling means's that near display element's illuminance provided inside, a plurality of display element that the display panel matched stack was put are that be connected in series to a predetermined figure and the display panel group that constitutes includes: receiving circuit is used for receiving the demonstration control signal transmitting circuit control signal output that shows to and be used for the scintillation drive to provide based on receiving by following receiving circuit optical emitter flash m