The invention relates to a signaling device for a motor vehicle, comprising one or more light screens uniformly illuminated. According to the invention, the signaling device comprises (2A) a light source (4) configured to emit a light beam (20) whose luminous intensity decreases when approaching the periphery of the light beam (20). ); and a screen (12) comprising a first face (14) opposite to a second face (16), the screen (12) passing at least a portion of the light beam (20) emitted by the light source (4); and means for holding the screen (12) in front of the light source (4) so that the light source (4) can illuminate its first face (14); and a concealment means (22) for a peripheral portion (28) of the light beam emitted by the light source (4), so that at the second face (16) of the screen (12) the maximum variation in luminous intensity is equal to or less than 60% when the light beam (20) illuminates the screen (12).
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