| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a multipurpose display document case with incised pictorial characters by spreading a contrast color of a clear case under the incised pictorial characters, which is also available, e.g., as a cover of a clear case or binder holder when not in use.SOLUTION: One or both sides of a document case, such as a white plastic clear case, are incised to form characters such as "At Home" with slits. When a user goes home, the clear case is put over a switched-off personal computer screen such that the slit characters overlie the black screen. This can be used as a display with black characters on the white clear case saying "At Home" appearing as a contrast color on the personal computer screen. The pictorial characters "At Home" in one or both sides of the white clear case are incised with slits that do not sacrifice the clear case's function of storing documents; when the user put the clear case over the screen upon switching off the personal computer screen to go home, the black screen provides a display meaning "(I am) at home (and not here anymore)".</p> |
