US Patent 10365610 Display mechanism with rollers for watches

A timepiece display mechanism for a watch includes a roller pivoting about a main axis and including flaps, each pivoting about a secondary axis parallel to the main axis and having two faces, a first driver for pivoting the roller about the main axis, and a second driver for pivoting a flap about its secondary axis, in a determined position of this secondary axis relative to the main axis, and which include, at each flap, a drive pinion cooperating with a controller to modify, in sequence or continuously, the position of the successive flaps of the same roller or to modify, on demand, the position of a specific flap.