| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a display device, a display device control method and a display system with which the enlargement or downsizing of display image or the change of the display position can be performed in which characters or images written on the display surface and display images coincide with each other. <P>SOLUTION: A display device has display means for displaying images on a display surface, modification means for modifying the state of the images displayed on the display surface, detection means for detecting characters and/or the images written on the display surface, and recording means for recording information about the state of the images of the modification means in accordance with the detection of the writing of the characters and/or the images on the display surface by the detection means and makes the enlargement or downsizing state adapting to the characters or the images written on the display surface or the images on the display position displayed again. <P>COPYRIGHT: (C)2012,JPO&INPIT |
