| 摘要 |
<p>PROBLEM TO BE SOLVED: To make all the members recognize the whole of the image data by switching the state that the whole of the image data is displayed on the whole area of a display screen with the state that the lower part of the image data is displayed on the upper part of the display screen answering to manual operation. SOLUTION: A large-sized screen 2 is arranged nearly vertically front of many viewers and on an overhead position, and an image display device 1 is arranged in the rear of the viewers 4 and on overhead position. Then, when an operator 5 input operates various keys by a controller, the image display device 1 display outputs the image data on the screen 2 answering to that. When the viewers 4 are many, and are arranged in the front/rear direction, and front viewers 4a become an obstacle, and rear viewers 4b can't view the lower part of the screen 2, the operator 5 switches the display state of the image data, and makes display the lower part of the image data on the upper part of the screen 2. Thus, the lower part of the image data is provided to the rear viewers.</p> |
