| 摘要 |
PROBLEM TO BE SOLVED: To provide an image display device that can easily distribute image information particularly in a railway vehicle, in an environment in which a plurality of image display devices are connected with a circuit that can transfer image information.SOLUTION: There is provided one of a plurality of image display devices connected via a network, the image display device reading image information recorded in a portable storage medium to be inserted therein and display/distribution information on display and distribution of the image information, serving as a master when the display/distribution information includes update information and distributing the image information stored in the portable storage medium to other image display devices on the basis of the display/distribution information, serving as a slave when the display/distribution information does not include the update information, receiving the image information distributed from the master, and displaying the image information recorded in the portable storage medium. |
