Dynamic display device designed to be integrated into a timepiece

A display device (1, 10) to be integrated into a timepiece, such as a watch, said display device (1, 10) comprising a first lenticular grating (11, 111) and a first supporting element comprising a pattern arranged so that it can be seen through the first lenticular grating, the pattern being fragmented into straight strips (24, 26) extending parallel to each other in a plane P parallel to the first supporting element, the straight strips (24, 26) being formed of at least a first group of strips defining first images and a second group of strips defining second images, the first and second images forming the pattern, the straight strips (24) in the first group being alternately arranged with the straight strips (26) in the second group such that there is always a straight strip (24) in the first group adjacent to a strip (26) in the second group, the first lenticular grating (11, 111) being formed of a plurality of juxtaposed cylindrical or spherical lenses (20) extending parallel to each other and having a focal length such that the focal plane of the lenses is coincident with the plane P, the lenses (20) in the lenticular grating (11, 111) having a step corresponding to the step at which the strips (24) in the first group, like the straight strips (26) in the second group, are arranged in succession,

• wherein the display device (1, 10) comprises a second supporting element comprising a second lenticular grating (12, 112), the second supporting element extending above the first supporting element and being arranged so that the pattern can be seen through both the first and second lenticular gratings (12, 112), one of the first or second supporting element being a supporting element rotating around an axis perpendicular to the plane P.