Light glazing (100 to 1000) for a motor vehicle (1100, 1200, 1300), comprising: - a first transparent sheet, with a first main face F1 intended to be directed toward the outside of the vehicle, a second main face F2 intended to be directed toward the interior of the vehicle and an edge, - facing one of the faces F1 or F2, a masking zone, made of an opaque material, a masking zone of width W of at least 0.8cm, - a first unmasked zone in the masking zone, - a first light source, the light emitted by the first light source being visible on the side of the face F1 leaving through the first unmasked zone characterized in that the light glazing also comprises: - on the side of the face F2, a transparent element, with an outer main face Fe oriented on the face F2 side and an inner main face Fi and a rim, the first light source being coupled optically to said transparent element, the light emitted by the first light source being guided in said transparent element, called light guide, the outer main face Fe of the light guide being opposite the first unmasked zone and behind the masking zone - first light extraction means capable of extracting the light guided in said light guide, the first light extraction means being opposite the first unmasked zone so that one or more of the illuminated patterns are visible on the side of the face F1 - on the face F2 side, an opaque rear masking element, covering the first light extraction means, the first light extraction means being between the face F2 and the rear masking element, when the first light source emits in the ultraviolet, the light device comprises a layer based on fluorescent luminophore capable of converting the extracted ultraviolet light into visible light when the first sheet has a see-throught portion, the first light source, a possible first support of the first light source, called first source support, the rear masking element are absent from the see-throught portion and preferably the light guide is absent from the see-throught portion, the first extraction means being in the form of one or more first spaced-apart patterns Mi, when the first light source is in operation the illuminated pattern or patterns Mi being visible on the side of the face F1, and/or the first unmasked zone is formed by one or more spaced-apart patterns Me, so that when the first light source is in operation one or more of the illuminated patterns Me are visible on the side of the face F1. - a first transparent sheet, with a first main face F1 intended to be directed toward the outside of the vehicle, a second main face F2 intended to be directed toward the interior of the vehicle and an edge, - facing one of the faces F1 or F2, a masking zone, made of an opaque material, a masking zone of width W of at least 0.8cm, - a first unmasked zone in the masking zone, - a first light source, the light emitted by the first light source being visible on the side of the face F1 leaving through the first unmasked zone - on the side of the face F2, a transparent element, with an outer main face Fe oriented on the face F2 side and an inner main face Fi and a rim, - first light extraction means capable of extracting the light guided in said light guide, the first light extraction means being opposite the first unmasked zone so that one or more of the illuminated patterns are visible on the side of the face F1 - on the face F2 side, an opaque rear masking element, covering the first light extraction means, the first light extraction means being between the face F2 and the rear masking element, when the first light source emits in the ultraviolet, the light device comprises a layer based on fluorescent luminophore capable of converting the extracted ultraviolet light into visible light when the first sheet has a see-throught portion, the first light source, a possible first support of the first light source, called first source support, the rear masking element are absent from the see-throught portion and preferably the light guide is absent from the see-throught portion, the first extraction means being in the form of one or more first spaced-apart patterns Mi, when the first light source is in operation the illuminated pattern or patterns Mi being visible on the side of the face F1, and/or the first unmasked zone is formed by one or more spaced-apart patterns Me, so that when the first light source is in operation one or more of the illuminated patterns Me are visible on the side of the face F1.