| 摘要 |
<p>PURPOSE:To eliminate an unpleasant feeling at the time of inputting a key and to obtain a touch panel input device with high operability by displaying contents indicating that the touched place of a depressed key is an invalid area when a touch panel in a key invalid are not corresponding to a key display graphic is depressed. CONSTITUTION:If a matrix-like key input means corresponding to a part on which an image indicating the array of keys 2 is not displayed is operated when the image indicating the array of the keys 2 is displayed on an image display mans, a control means 13 displays the invalidity of the depressed key on a display screen only for a prescribed time. Namely, the contents indicating that the touched position of the depressed key 34 is an invalid area when the touch panel on the key invalid area not corresponding to the depressed key 34 is depressed is displayed. Thereby, the depression of the key invalid area or the hardware undetection of an input can be easily distinguished. Consequently, operator's unpleasant feeling can be eliminated at the time of inputting the key and the touch panel input device with high operability can be obtained.</p> |
