| 摘要 |
<p>The advertising display panel includes a front sheet with openings cut to define the required motif or pattern. Behind this are a number of strips of coloured material which are arranged to show through the front openings. The strips may be moved so that in one position they display a colour similar to that of the front panel, while in the other position they display a distinctive colour. The coloured portions of the strip may be made of fluorescent paper. This is illuminated from behind by a UV lamp so that the display glows brightly.</p> |
