To obtain a display device having excellent decorative function utilizing irregular and complicate movement at the time of water flowing by disposing a water flow-out means at an upper part of a display board made of a plastic material, and supplying the water onto a screen of a display board to flow down.

A display board 1 is formed of plastic material, disposed in a vertical direction to be supported by a support base 10. A periphery of the board 1 is edged by a cover 100. A water flow-out means 2 is disposed on an upper part 111 of the board 1, waters 41, 42 supplied from exterior are supplied onto a screen 11 of the board 1 to flow down. The means 2 is supplied with the water via a water supply means 3 such as a pump and a water conduit 31, has two water flow-out ports 21, 22 so that flows of the waters 41, 42 supplied from the ports 21, 22 flow clown by drawing irregular and complicate pattern while interfering with one another to obtain a display effect without tiring an observer.