| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a portable terminal device capable of easily changing an operation key group displayed on a touch panel to a desired layout to improve the operability. <P>SOLUTION: The portable terminal device 1 adapted to display the operation key group on a display part 4 and perform input operation thereto through the touch panel 5 comprises a control means 11 which detects a continuous moving input by the touch panel 5 started from one point within the display range of the operation key group displayed on the display part 4, moves the start point according to the continuous moving input with a point corresponding to the start point as a fixed point, enlarges or reduces at least a part of the operation key group while enlarging or contracting the display range of the operation key group according to the movement of the start point to change the layout of the operation key group. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
