Hydrogen supplied from an introduction port is diffused in a first space, which is a first buffer section. Particularly, the second scan line and the third scan line are electrically connected with each other. At a receiving side, the image information added to each of the image data for each frame respectively transmitted from the transmitting means are analyzed, and dividing means for dividing for each frame and outputting the multiplexed image data transmitted from the transmitting means to the corresponding channels is provided based on the analysis result. Other embodiments are described and claimed.