Problem to be solved: to provide a display device capable of displaying a name or address, for example, only to a visitor having the business.Solution: the front plate apparatus 1 comprises a surface plate 3 on which a surface layer 2 of a double layered structure is stuck, a light guide plate 4 for irradiating light on the back surface of the surface plate 3, a sensor 6 for detecting the contact of the human body to the surface plate 3, and a control unit 7 for controlling the light guide plate 4 on the basis of a detection signal from the sensor 6.The surface sheet 2 comprises layers 201 and 202 which are patterned and colored, and a light shielding layer 204 provided on the back side of the layer, and a light transmitting portion is formed in the light shielding layer 204 which imitates a character functioning as a front plate.When the sensor 6 detects the contact of the human body, the controller 7 causes the light guide plate 4 to emit light, and the character is displayed on the surface of the surface plate 3 in the light emitting state, and when the sensor 6 is not detected, the pattern or the layer of the colored layer is displayed on the surface plate 3.Diagram
展开▼
