Abstract: A display device comprising: a control member (10); a carriage (50) displaced along a predetermined path (A) by the control member (10); and a plurality of flaps (100) distributed at a constant pitch (p) along the path (A) of the carriage, with each flap (100) being equipped with a cam (120) suitable for engaging the carriage (50) in order to displace the associated flap (100) from a rest position to an operated position. According to the invention said cams (120) are positioned in predetermined different positions relative to the corresponding flaps (100) in order to define a predetermined relationship between carriage displacement and the successive instants at which the flaps (100) are moved.