| 摘要 |
<P>PROBLEM TO BE SOLVED: To easily display an image printed on a transparent plate in a conspicuous mode. Ž<P>SOLUTION: Two transparent plates are superposed and provided. A display image is printed on a surface of one transparent plate by using a transparent ink and an additional image is printed on a surface of the other transparent plate by using a transparent ink. Light is received from an end face into an interior of the transparent plate (transparent plate for display image) on which the display image has been printed, so as to brighten the display image. Similarly, the light is received from an end face into an interior of the transparent plate (transparent plate for additional image) on which the additional image has been printed, so as to brighten the additional image. Then, the additional image is brightened or erased even while the display image is brightened and displayed. As a result, since the additional image is displayed or erased even after displaying the display image, it is possible to attract publicity. Since constitution for displaying the additional image has only to be added, the image can be easily displayed as before. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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