Luminous signaling glazing, vehicle incorporating same and manufacture

An automotive luminous signaling glazing forming a vehicle front windshield comprising:

• a laminated glazing including:
• a first glazing made of mineral glass, forming an exterior glazing, with first and second main faces;
• a second glazing made of mineral glass, forming an interior glazing, with third and fourth main faces;
• disposed between the second main face and the third main face, which are internal faces of the laminated glazing:
• a lamination interlayer made of a thermoplastic polymeric material, said lamination interlayer having a fifth main face oriented toward the second main face and a sixth main face oriented toward the third main face;
• at least one inorganic light-emitting diode, each inorganic light-emitting diode being of submillimeter-sized thickness, each inorganic light-emitting diode of the at least one inorganic light-emitting diode being able to emit signaling light in the direction of the third main face, and each inorganic light-emitting diode of the at least one inorganic light-emitting diode having an edge face, the lamination interlayer comprising a cutout that forms an aperture;
• a set of electrically conductive wires anchored on an anchoring face of the lamination interlayer, which is either the fifth main face or the sixth main face,
• wherein,
• for each inorganic light-emitting diode, the lamination interlayer comprises, on the face opposite the anchoring face, the aperture that is blind, housing the at least one inorganic light-emitting diode,
• and/or, for a group of inorganic light-emitting diodes of the at least one inorganic light-emitting diode, the lamination interlayer comprises, on the face opposite the anchoring face, the aperture that is blind and common, housing said group of inorganic light-emitting diodes,
• and wherein the anchoring face is in contact with the second main face or the third main face.

A process for manufacturing an automotive luminous signaling glazing forming a vehicle front windshield including

• a laminated glazing including:
• a first glazing made of mineral glass, forming an exterior glazing, with first and second main faces;
• a second glazing made of mineral glass, forming an interior glazing, with third and fourth main faces;
• disposed between the second main face and the third main face, which are internal faces of the laminated glazing:
• a lamination interlayer made of a thermoplastic polymeric material, said lamination interlayer having a fifth main face oriented toward the second main face and a sixth main face oriented toward the third main face;
• at least one inorganic light-emitting diode, each inorganic light-emitting diode being of submillimeter-sized thickness, each inorganic light-emitting diode of the at least one inorganic light-emitting diode being able to emit signaling light in the direction of the third main face, and each inorganic light-emitting diode of the at least one inorganic light-emitting diode having an edge face, the lamination interlayer comprising an aperture;
• a set of electrically conductive wires anchored on an anchoring face of the lamination interlayer, which is either the fifth main face or the sixth main face,
• wherein,
• for each inorganic light-emitting diode, the lamination interlayer comprises, on the face opposite the anchoring face, the aperture that is blind, housing the at least one inorganic light-emitting diode,
• and/or, for a group of inorganic light-emitting diodes of the at least one inorganic light-emitting diode, the lamination interlayer comprises, on the face opposite the anchoring face, the aperture that is blind and common, housing said group of inorganic light-emitting diodes,
• the method comprising:
• cutting the lamination interlayer carrying said wires in the form of a first thermoplastic sheet of thickness of at most 0.9 mm in order to form the one or more local blind apertures;
• assembling the laminated glazing.