A sign plate 1 of the present invention includes a plate-shaped metal plate 2 having a front surface 21 and a back surface 22 and also having a slot 23 which penetrates from the front surface 21 toward the back surface 22, an RFID inlay 3 arranged on the f...

An internally illuminated retroreflective display device equipped with at least one radio frequency identification, which is a retroreflective display device comprising at least a surface-protective layer, an information display layer, a retroreflective la...

In a retroreflective display device comprising at least a surface-protective layer, information display layer, retroreflective layer and a back-protective layer, on or between these layers radio frequency identification unit or units enclosing radio freque...

Retroreflective sheeting comprising at least a reflective element layer made up of a large number of reflective elements and a holding body layer and a surface protective layer provided on the reflective element layer, wherein a printed layer is provided o...