| 摘要 |
An electroluminescence internally illuminated retroreflective display device equipped with at least one radio frequency identification unit, which is a retroreflective display device comprising at least a surface-protective, an information display layer, retroreflective layer and a back-protective layer, having the at least one radio frequency identification unit on or between said layers, said at least one radio frequency identification unit enclosing the at least one radio frequency identification integrated circuit and having at least one communication antenna installed as connected to said at least one radio frequency identification integrated circuit; characterized in that an illuminator according to the principle of electroluminescence is disposed at the back of the retroreflective layer, said retroreflective layer being retroreflective to the light coming from the front of the sign and transmissive to the light from the interior of the sign. |
