Luminous display device for a timepiece, in particular for a watch, comprising means for improving the visual appearance of the timepiece

A luminous display device (1) configured to be fitted in a watch case, the display device (1) comprising:

• a dial (2) comprising a dial body (20) provided with a central hole and having an upper face (21);
• at least one hand (3, 4, 5) arranged above the dial (2) and mounted on a rotary arbor passing through the central hole in the dial body (20),
• the hand (3, 4) comprising a layer forming a light guide (31, 41) arranged to diffuse all or part of a luminous flux emitted by a lighting module (70) comprising an open cloisonné space (10) delimited by a back (26) formed by a dial rest (7) and by a peripheral wall (22) forming a screen made in one piece with said dial,
• said wall (22) being positioned around the rotary arbor of the hand (3, 4, 5) and extending above the dial body (20) over a defined height, said lighting module (70) comprising a light source (6) located on the back (26) of the space (10) and being arranged to emit a luminous flux towards the hand (3, 4, 5) so as to illuminate the latter from below.