| 摘要 |
PURPOSE:To provide a dot matrix type LED display unit constituted small and devised easy to assemble and exchange. CONSTITUTION:An LED display unit 10 is constituted so as to include at least one dot matrix type LED display module 12 furnished with a plural number of LEDs installed in front of a chassis 11 in parallel and arranged in a dot- matrix, an electric power source device 13 to supply driving voltage to each of the LED display modules installed on the chassis and a control circuit 14 to carry out display control of each of the LED display modules installed on the chassis in the same way. |
