DISPLAY MEDIUM REWRITING DEVICE, DISPLAY DEVICE, DISPLAY MEDIUM REWRITING METHOD, AND DISPLAY REWRITING PROGRAM

摘要

An object is to display and erase an image on a display medium both conveniently and safely. Data is written to electronic paper by placing the electronic paper is on a rewriting device together with an IC card. When, in this state, the IC card is then removed, the displayed image is retained by the electronic paper until a predetermined condition is fulfilled. Writing of annotations using an electronic pen is possible until the predetermined condition is fulfilled, and the image displayed on the electronic paper by the writing device is erased when the predetermined condition is fulfilled.