Video display system and a video display device

Rich in portability, a portable information terminal accessible from display system, between the display device 102 and the server 101, between the display device 102 and other display devices are cascaded in a wireless communication network, each of the display devices There comprising a connection interface with the portable information terminal, the communication interface between each display device and the server, or other display device, than the communication interface with the portable information terminal, a large capacity of wireless communications protocol in a high frequency band is applied It is.