| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To achieve a markedly user-friendly portable terminal device. <P>SOLUTION: Into an expansion slot 9 of a portable telephone 1, an expansion stick 11 of an expansion display device 10 provided with an expansion display part 13 having a display face larger than the display face of a main body display part 8 is detachably inserted, and display object information is displayed on the expansion display part 13, so that a portion that can be collectively displayed as the content of the display object information is particularly increased and the content of the display object information can be easily ascertained, thus permitting to markedly improve the usability of the portable telephone. <P>COPYRIGHT: (C)2003,JPO</p> |
