| 摘要 |
<p>PROBLEM TO BE SOLVED: To make it possible to change image display direction in the direction desired by an operator only by changing the direction to hold the portable information terminal or changing direction of the screen of the image display device. SOLUTION: This is a portable information terminal provided with an image display device and a gravity detecting device, and the gravity detecting device uses a magnetic sensor, and according to the direction of the portable information terminal detected by the gravity detecting device or the direction of the screen caused by vertically flipping the image display device, the display direction of the image to be displayed on the image display device is changed Moreover this device is a portable information device which is provided with a 1st image display device having a touch panel as an input device, and a 2nd image display device having a touch panel which is connected with the 1st image display device and has a touch panel as an input device, and a gravity detecting device, and which displays a key arrangement on either of the 1st and 2nd image display devices, and according to the direction holding the portable information terminal detected by the gravity detecting device, the display direction of the image and key arrangement displayed on the 1st and 2nd image display devices is changed to be correctly faced to the operator.</p> |
