Display device

An advertising display cabinet has a hinged front door comprising a half-silvered mirror, behind which is an array of open-fronted cells each containing a halogen lamp. Interposed between the open front of each cell and the mirror is a light- transmissive picture. Photo-sensors disposed behind the mirror detect the presence of a person in front of the mirror, and activate a controller which energises one or more halogen lamps in the cells to cause predetermined back-projected picture images to be seen by the person. The controller also activates a tape cassette player so as to provide simultaneously an appropriate commentary. The individual pictures may be replaced by rolls or cassettes from which pictures may be selected. The respective cells and associated lamps and pictures may each take the form of a film projector, or an electronic video apparatus, arranged to project a picture image on to the rear surface of the mirror.