Patent ID: 6557281
Filing Date: 2003-05-06
Classification: G09F

Abstract:
A public display device, comprising:a closed external casing which defines a certain internal volume and which has at least one transparent opening, a support band made of flexible material which is arranged in the internal volume of the casing, this band having at least one so-called printing side, adapted to be printed in a way to comprise several posters juxtaposed along the support band, a driving mechanism of the support band, this mechanism being adapted to selectively display, opposite the transparent opening, one of the posters printed on the support band, at least one electronic interface adapted to receive digital data representing designs to be printed on the support band, an electronic central unit communicating with the interface and controlling the driving mechanism of the support band, and a printer controlled by the central unit, this printer being arranged opposite a printing zone belonging to the printing side of the support band, the central unit being adapted to make the printer print the designs received by the interface, wherein the printing zone is arranged so as not to be visible through the transparent opening of the external casing, the display device comprising moreover: a buffer zone enabling a variable length of support band to be accumulated between the printing zone and the part of the support band which corresponds to the poster displayed opposite the casing's transparent opening, this buffer zone being adapted to enable several posters to be printed in advance whilst holding fixed the poster displayed opposite the casing's transparent opening, and means for holding taut at least said part of the support band arranged opposite the casing's transparent opening when a certain length of support band has accumulated in the buffer zone.