| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve operability by inputting a password for canceling a screen saver picture through a simple operation. SOLUTION: When a coordinate point is outputted from an input device 7 but the next coordinate point is not outputted later within a predetermined period, a picture displayed on a display panel 6 is switched to the screen saver picture. The input plane of the input device 7 is divided into plural areas determined in advance and mutually different numerals are made correspondent to the respective areas. The 1st password for canceling this screen saver picture instructs the input plane through an input pen and inputs the coordinate point outputted from the input device 7 while transforming it to the numeral corresponding to the area including the relevant coordinate point. The 2nd password to be inputted at the time of displaying the screen saver picture is inputted similarly to the 1st password and only when the 1st and 2nd passwords are mutually coincident, this screen saver picture is canceled.</p> |
