Display device

A coordinate notification method in a device that is equipped with a plurality of displays having a touch panel function, comprising:

• sensing contact to said plurality of displays;
• judging whether one application is displaying said image straddling said plurality of displays;
• a conversion step of, when one application is displaying said image straddling said plurality of displays, using a predetermined operation to convert the physical coordinates that indicate the position at which said contact is sensed to virtual coordinates;
• when one application is displaying said image on only one display among said plurality of displays, reporting the physical coordinates at which said contact is sensed to the application;
• and
• when one application is displaying said image straddling said plurality of displays, reporting said virtual coordinates to said application.