| 摘要 |
PROBLEM TO BE SOLVED: To provide an LED display device which makes it possible to obtain images above a specified quality at all times by preventing a disturbed display from being performed by stopping the display when the display signals are abnormal. SOLUTION: This LED display device consists of an LED panel display 15 on which a plurality of light emitting blocks consisting of >=1 color of LEDs are arranged in a matrix form, a signal transmitter 10 which supplies the display signals to the LED panel display 15, a receiver 11 which receives the signals from the transmitter 10, and a controller 12 which transmits display information to the light emitting blocks, in which the transmitter 10, the receiver 11 and the controller 12 are provided with a means for closing all of the output signals when there is abnormality in the display signals to be respectively inputted thereto and returning the output signals to normality when the signals are set to the normality.
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