| 摘要 |
<p>An apparatus to display dynamically changing visual information, primarily for publicity purposes, comprising a primary information-carrying surface arranged in a fixed way in a first plane and a secondary information-carrying surface arranged in a moveable way in at least one further plane and associated with a driving mechanism, wherein the secondary information-carrying surface is an infinite foil (8, 12) guided moveably on a forced trajectory, upon which at least one pattern providing visual modification to the information on the first plane is applied.</p> |
