| abstract |
(57) [Summary] [Structure] A heating means for heating the display medium from both the front side and the back side is provided, and the temperature of the front side surface of the display medium is preferably higher than the temperature of the back side surface by the heating means. Can be heated to [Effect] According to the present device, it becomes possible to erase in a short heating time a display medium using a reversible thermosensitive recording material capable of repeating writing and erasing of information by heating, and moreover, a card form. Even in the case of the above display medium, for example, in the case of a thick PVC card, it is possible to prevent the card from being softened or deformed. |