Vehicle luminous glazing, vehicle incorporating it

Abstract

A vehicle luminous signaling glazing forming, for example, a laminated vehicle windshield includes a first exterior glazing, with first main face and second main face, a lamination interlayer made of polymeric material with an other edge face, a second interior glazing, with third main face and fourth main face, the second main face and the third main face being the internal faces of the laminated glazing. The glazing also includes a flexible carrier for the diodes including a diode zone, an emerging electrical supply zone emerging from the other edge face, divided into a plurality of track strips, carrying electrical tracks, with an individual width Wi of less than 5 cm.

Claims

1. A vehicle glazing having an internal luminous zone comprising: a bent laminated glazing comprising: a first glazing comprising a glass sheet forming an exterior glazing, with first and second main faces and a first edge face, a second glazing comprising a glass sheet forming an interior glazing, with third and fourth main faces and a second edge face adjacent the first edge face, and, between the second main face and the third main face, which are internal faces of the bent laminated glazing, a lamination interlayer made of thermoplastic polymeric material having a fifth main face in adhesive contact with the second main face and a sixth main face in adhesive contact with the third main face, the lamination interlayer having another edge face adjacent the first and second edge faces, inorganic light-emitting diodes arranged between the second and third main faces, each diode of the inorganic light-emitting diodes having a light-emitting face facing the third main face capable of emitting light in a direction of the third main face, a carrier for the inorganic light-emitting diodes having a front face facing the third main face and a rear face, facing the second main face, the inorganic light-emitting diodes being mounted on the front face, the carrier for the inorganic light-emitting diodes being flexible and comprising, on the front face, electrically conductive zones forming electrical tracks for supplying electricity, a portion or all of the electrical tracks arranged to supply electricity to the inorganic light-emitting diodes, and the lamination interlayer is being present between the front face and the third main face, the carrier for the inorganic light-emitting diodes being of submillimetric thickness, comprising: diode zone arranged between the second and third main faces, said diode zone comprising said inorganic light-emitting diodes, said diode zone extending along the first edge face over a length L0 of at least 6 cm, an emerging electrical supply zone that extends in the direction of the first edge face and that emerges from the edge face of the lamination interlayer, the emerging electrical supply zone comprising a supply internal zone with the electrical tracks, between the second and third main faces, defined by a width Wt which is less than L0, and the bent laminated glazing comprises an adhesive leaktight to liquid water, positioned between the second main face and the rear face in a portion of the rear face, of submillimetric thickness, wherein the width Wt is at least 5 cm, the internal zone is divided into a plurality of track strips carrying electrical tracks, with an individual width Wi of less than 5 cm in the internal zone, the track strips emerging from edge face of the lamination interlayer, and wherein, in the internal zone, the lamination interlayer is present in an interstrip space between neighboring track strips.

2. A vehicle glazing having external luminous signaling comprising: a bent laminated glazing comprising: a first glazing comprising a glass sheet forming an exterior glazing, with first and second main faces and a first edge face, a second glazing comprising a glass sheet forming an interior glazing, with third and fourth main faces and a second edge face adjacent the first edge face, and, between the second main face and the third main face, which are internal faces of the laminated glazing, a lamination interlayer made of thermoplastic polymeric material having a fifth main face in adhesive contact with the second main face and a sixth main face in adhesive contact with the third main face, the lamination interlayer having another edge face adjacent the first and second edge faces, inorganic light-emitting diodes arranged between the second and third main faces, each diode of the inorganic light-emitting diodes having a light-emitting face facing the second main face capable of emitting light in a direction of the second main face, a carrier for the inorganic light-emitting diodes having a front face, facing the second main face and a rear face, facing the third main face, the inorganic light-emitting diodes being mounted on the front face, the carrier for the inorganic light-emitting diodes being flexible and comprising, on the front face, electrically conductive zones forming electrical tracks for supplying electricity, a portion or all of the electrical tracks supplying electricity to the inorganic light-emitting diodes, the lamination interlayer being present between the front face and the second main face, the carrier for the inorganic light-emitting diodes, which is of submillimetric thickness E3, comprising: a diode zone arranged between the second and third main faces, said diode zone comprising said inorganic light-emitting diodes, said diode zone extending along the second edge face over a length L0 of at least 6 cm, an emerging electrical supply zone that extends in the direction of the second edge face and that emerges from the edge face of the lamination interlayer, the emerging electrical supply zone comprising a supply internal zone with the electrical tracks, between the second and third main faces, defined by a width Wt which is less than L0, and the bent laminated glazing comprises an adhesive leaktight to liquid water, positioned between the rear face and the third main face in a region of the rear face, of submillimetric thickness E8, wherein the width Wt is at least 5 cm, the emerging electrical supply zone is divided into a plurality of track strips carrying electrical tracks, with an individual width Wi of less than 5 cm in the internal zone, the strips emerging from edge face of the lamination interlayer, and wherein, in the internal zone, the lamination interlayer is present in the interstrip space between neighboring track strips.

3. The vehicle glazing as claimed in claim 1, wherein the interstrip space between two neighboring track strips has a width W.sub.S of at least 5 mm.

4. The vehicle glazing as claimed in claim 1, wherein the track strips extend in the protruding zone and are connected over a width D of at least 0.5 cm.

5. The vehicle glazing as claimed in claim 1, wherein the edge face of the diode zone defines arc-shaped linking zones between neighboring track strips or linking zones that have a beveled edge or a groove.

6. The vehicle glazing as claimed in claim 1, wherein said adhesive leaktight to liquid water is a double-sided adhesive tape.

7. The vehicle glazing as claimed in claim 1, wherein the front face comprises one or more double-sided adhesive tapes that have a submillimetric thickness and that are in contact with the lamination interlayer, and that are out of contact with the inorganic light-emitting diodes.

8. The vehicle glazing as claimed in claim 1, wherein, in the protruding zone, the carrier for the inorganic light-emitting diodes is curved and extends to the fourth main face and is adhesively bonded to the fourth main face.

9. The vehicle glazing as claimed in claim 1, wherein, in the diode zone or in the internal zone, or both in the diode zone and in the internal zone, the carrier for the inorganic light-emitting diodes comprises, on the front face, electronic components of submillimetric thickness chosen from one at least of the following elements: a resistive element, a capacitive element, a transistor or a microcontroller.

10. The vehicle glazing as claimed in claim 1, wherein a distance between the emitting face of the inorganic light-emitting diodes and the third main face is at most 0.5 mm.

11. The vehicle glazing as claimed in claim 1, wherein the track strips are masked from the inside by a masking layer or from the outside by a masking layer.

12. The vehicle glazing as claimed in claim 1, wherein the diode zone is facing a gap of a masking layer, which gap is common to the inorganic light-emitting diodes or made of several individual gaps for the inorganic light-emitting diodes.

13. The vehicle glazing as claimed in claim 1, wherein the lamination interlayer is made of poly(vinyl butyral) (PVB) with a thickness E2, the inorganic light-emitting diodes have a thickness E4 which is less than E2.

14. The vehicle glazing as claimed in claim 1, wherein the lamination interlayer is made of poly(vinyl butyral) (PVB), or is made of a composite element that includes a first PVB film, a functional transparent plastic film and a second PVB film.

15. A vehicle comprising at least one vehicle glazing as claimed in claim 1, wherein, the glazing has an internal luminous zone forming a windshield, the light from the inorganic light-emitting diodes is an anticollision system.

16. The vehicle glazing as claimed in claim 2, wherein the interstrip space between two neighboring track strips has a width W.sub.S of at least 5 mm.

17. The vehicle glazing as claimed in claim 2, wherein said adhesive leaktight to liquid water is a double-sided adhesive tape.

18. The vehicle glazing as claimed in claim 2, wherein the front face comprises one or more double-sided adhesive tapes that have a submillimetric thickness and that are in contact with the lamination interlayer, and that are out of contact with the inorganic light-emitting diodes.

19. The vehicle glazing as claimed in claim 2, wherein, in the protruding zone, the carrier for the inorganic light-emitting diodes is curved and extends to the fourth main face and is adhesively bonded to the fourth main face.

20. The vehicle glazing as claimed in claim 2, wherein, in the diode zone and/or in the internal zone, or both in the diode zone and in the internal zone, the carrier for the inorganic light-emitting diodes comprises, on the front face, electronic components of submillimetric thickness chosen from one at least of the following elements: a resistive element, a capacitive element, a transistor or a microcontroller.

21. A vehicle comprising at least one vehicle glazing as claimed in claim 2, wherein, the external luminous signaling glazing forms a rear window and includes a stop lamp, a third stop lamp, or the external luminous signaling glazing forms a side window that includes a hazard warning lamp or a lamp for locating the vehicle or a turn signal indicator.

Description

(1) The present invention is now explained in greater detail with reference to the appended figures, in which:

(2) FIG. 1 shows, on the face F4 side, a diagrammatic view of a windshield mounted on a motor vehicle on a road, a windshield with the internal luminous zone in an embodiment of the invention

(3) FIG. 1 shows a diagrammatic view in section of diodes mounted on a diode carrier according to the invention.

(4) FIG. 2 shows a partial diagrammatic view in section of a bent laminated vehicle glazing having an internal luminous zone in an embodiment of the invention.

(5) FIG. 2 shows a partial diagrammatic view in section of a bent laminated vehicle glazing having an external luminous zone in an embodiment of the invention.

(6) FIG. 3 shows a partial diagrammatic view in section of a bent laminated vehicle glazing having an internal luminous zone in an embodiment of the invention.

(7) FIGS. 2a, 2b each show a partial diagrammatic front view of a bent laminated vehicle glazing having an internal luminous zone in an embodiment of the invention.

(8) FIGS. 4i to 4n show internal glazings with their internal masking layer and FIGS. 4ito 4nshow external glazings with their external masking layer and the carriers for the diodes according to the invention.

(9) FIGS. 5, 6, 7, 8, 9, 10, 11 each show a partial diagrammatic front view of a bent laminated vehicle glazing having an internal luminous zone in an embodiment of the invention.

(10) FIG. 12 shows a diagrammatic view, on the face F1 side, of a bent laminated sunroof mounted on a motor vehicle on a road, a roof with the internal luminous zone in an embodiment of the invention

(11) FIG. 13 is a diagrammatic front view, face F1 side, of a rear window having external luminous signaling in an embodiment of the invention.

(12) FIG. 14 is an exploded diagrammatic view of a bent laminated vehicle glazing in an embodiment of the invention.

(13) The elements drawn are not to scale.

(14) FIG. 1 shows (as seen from inside the vehicle) a windshield 1000 of a motor vehicle traveling on a three-lane road with a car in front.

(15) The windshield is a bent laminated glazing with first and second glazings with the internal luminous signalling 100 visible by transparency from the side of the innermost main face 14 of the internal glazing.

(16) The windshield comprises: a first assembly of six inorganic light-emitting diodes 4 mounted on a first printed circuit board, for example opaque, the diode region of which is incorporated between the first and second glazings, which diodes are, for example, polychromatic and in a row and are positioned in an edge zone of the windshield along the lower longitudinal edge in particular on the driver's side (for help in optimized driving), which diode zone is in front of a peripheral masking zone (enamel, and the like) of the first glazing or exterior glazing and behind a peripheral masking zone (enamel, and the like) of the second glazing or interior glazing 1 in which are inserted individual gaps 61 which allow the light of the diodes 4 to pass, a second assembly of six inorganic light-emitting diodes 4 mounted on a second printed circuit board, for example opaque, the diode region of which is incorporated between the first and second glazings, which diodes are, for example, polychromatic and in a row and are positioned in an edge zone of the windshield along the (left) lateral edge in particular on the driver's side, which diode zone is in front of a peripheral masking zone (enamel, and the like) of the exterior glazing and behind a peripheral masking zone (enamel, and the like) of the interior glazing in which are inserted individual gaps which allow the light of the diodes to pass, a third assembly of six inorganic light-emitting diodes 4 mounted on a third printed circuit board, for example opaque, the diode region of which is incorporated between the first and second glazings, which diodes are, for example, polychromatic and in a row and are positioned in an edge zone of the windshield along the right lateral edge in particular on the navigator's side, which diode zone is in front of a peripheral masking zone (enamel, and the like) of the exterior glazing and behind a peripheral masking zone (enamel, and the like) of the interior glazing in which are inserted individual gaps which allow the light of the diodes to pass.

(17) These diodes, in particular of the first assembly, can emit red light, alerting the driver when the car in front (or any other means of locomotion or else an animal) is detected as too close. The red light can be continuous or flashing. The light chosen to be continuous can increase in intensity as the car in front gets closer or from a preset distance, the high-risk distance. The frequency of light chosen to be flashing can increase as the car in front gets closer or from a preset distance, the high-risk distance.

(18) When the car in front is sufficiently far away (observation of the safe distance), the diodes are turned off.

(19) These diodes, in particular of the second assembly, can emit red light, alerting the driver when a car (or any other means of locomotion or else an animal) is detected as too close on the left-hand side of the car. The red light can be continuous or flashing. The light chosen to be continuous can increase in intensity as the car to the side gets closer or from a preset distance, the high-risk distance. The frequency of light chosen to be flashing can increase as the car to the side gets closer or from a preset distance, the high-risk distance. When the car to the side is sufficiently far away, the diodes are turned off.

(20) These diodes, in particular of the third assembly, can emit red light, alerting the driver when a car (or any other means of locomotion or else an animal) is detected as too close on the right-hand side of the car. The red light can be continuous or flashing. The light chosen to be continuous can increase in intensity as the car on the right-hand side gets closer or from a preset distance, the high-risk distance. The frequency of light chosen to be flashing can increase as the car to the side gets closer or from a preset distance, the high-risk distance. When the car to the side is sufficiently far away, the diodes are turned off.

(21) The anticollision system operates on any road: highway, urban. It can also serve to warn of the excessively close presence of an object, of a pedestrian, and the like.

(22) The signaling light can also change from one color (for example orange or amber) when the vehicle is at a risky distance to another color, for example red, when the vehicle is at a shorter and even more dangerous distance.

(23) In these cases, as many diodes as necessary are provided, for example one row with an alternation of red diodes and orange diodes, or one row per color. It is also possible to have at least three signaling levels (three colors).

(24) The vehicle incorporates at least one sensor (preferably one per assembly of diodes having the same function) in order to detect these dangerous situations (nonobservation of the safe distance, or others) and at least one control unit for managing the diodes, for example outside the windshield.

(25) For this warning function, any PCB board with diodes is preferably in the lower quadrant on the driver's side.

(26) The diodes 4 are not necessarily in a row, parallel to the edge of the glazing; they can form luminous patterns, for example pictograms.

(27) FIG. 1 shows a view in section of diodes mounted on a carrier for diodes according to the invention.

(28) The inorganic light-emitting diode 4 is a surface mount device (SMD) then comprising a peripheral packaging 42a.

(29) Each diode is an electronic component including at least one semiconductor chip 40, and is equipped with the polymeric or ceramic peripheral packaging 42a forming a peripheral encapsulation of the edge face of the electronic component. The diode is top emitting.

(30) The packaging can correspond to the maximum thickness (height) E2 of the diode. The packaging is, for example, made of epoxy. A polymeric packaging can optionally shrink (the final thickness after lamination can be less than the initial thickness) during the lamination. The (polymeric) packaging can be opaque.

(31) The packaging (which is monolithic or made of two segments) can comprise a part forming a seating 42 carrying the chip 40 and a part forming a reflector at a distance from the seating and higher than the chip, containing a protective resin 43 and/a material having a color conversion function. The front surface 41 can be defined as the surface of this material covering the chip set back from or level with the front surface of the reflector.

(32) The anode and cathode contacts 44 are produced, for example, by conductive adhesive bonding to an electrically conductive layer with an insulated zone 33. The contacts are prolonged by via holes into the seating as far as zones of layers 45, the one 45 connected by a wire to the cathode.

(33) FIG. 2 is a diagrammatic sectional view of a windshield having internal luminous signaling 200 in an embodiment of the invention, comprising a bent laminated glazing comprising: a first glazing 1, for example made of TSA glass of the applicant company and with a thickness E1 equal to 2.1 mm, forming the exterior glazing, which is preferably tinted, with first and second main faces 11, 12, respectively face F1 and face F2, and an edge face 10, a second glazing 1, forming the interior glazing, for example made of clear or extra-clear glass and with a thickness T1 of 2.1 mm or even of 1.6 mm or even less, with third and fourth main faces 13, 14, respectively face F3 and face F4, the face F4 optionally coated with a functional layer (low-emissivity, and the like), and with a second edge face 10 by the first edge face, preferably set back from the first edge face, for example by at most 1 mm, the face F2 and the face F3 being the internal faces 11, 11 of the bent laminated glazing, between the glazings, a lamination interlayer 2 made of polymeric material, in this instance made of PVB, preferably clear or extra-clear, with a thickness E2 which is preferably submillimetric, for example a PVB (for example RC41 from Solutia or from Eastman) of approximately 0.76 mm, or in an alternative form, if necessary, a (three-layer or four-layer) acoustic PVB, for example with a thickness of approximately 0.81 mm, and even optionally a wedge-shaped PVB (for a head-up display), this PVB having a main face 21, F2, in adhesive contact with the face F2 and a main face 22, F3, in adhesive contact with the face F3 and an edge face 20 by the first edge face 10, other edge face, the face F3 on the face F3 side optionally carrying an assembly of (heating) metal wires (substantially) covering the surface of the windshield, in particular facing diodes, in particular virtually invisible wires, for example of 50 m, in the form of straight or nonstraight lines.

(34) The windshield additionally comprises a printed circuit board 3 with electrical tracks 33 and carrying, in the laminated zone, an assembly of inorganic light-emitting diodes 4, surface mounted (SMD) on the board 3 and having a light-emitting face facing the face F3 capable of emitting light in the direction of the face F3, for example emitting in the red region or in the green region. The diodes 4 have a thickness E4 which is less than E2, preferably at most 0.8 mm. The distance H between the emitting face of the diodes and the face F3 is preferably nonzero and preferably at most 0.5 mm and even ranging from 0.1 to 0.3 mm. The PVB is absent or present between the emitting face of the diodes and the face F3, depending on the manufacturing process.

(35) The board 3 forming the carrier for the diodes is flexible, of submillimetric thickness E3, for example from 10 or 50 to 200 m, for example a polymer, such as a polyimide (and optionally a sandwiched metal sheet). It comprises, on the front face 32, face F3 side, electrically conductive zones for supplying with electricity, electrical tracks, 33 spaced out by insulation zones 33, a portion or all of the electrical tracks supplying the diodes. The lamination interlayer is present between the front face 32 and the face F3.

(36) The carrier for the diodes 3 comprises several zones: between the faces F2 and F3, the diode zone 30, comprising said diodes 4, for example two rows of 8 diodes parallel to one another along the first edge face, which diode zone is defined by a length L0 of at least 6 cm along the first edge face, and for example by a width W0 of at most 10 cm and even of at most 5 cm and preferably of at least 1 cm, an emerging electrical supply zone 34, prolonging the diode zone 30 and extending in the direction of the first edge face 10 and emerging from the other edge face 20, comprising a supply zone, internal zone, with the electrical tracks, between the faces F2 et F3, defined by a width Wt (parallel to L0) which is less than L0, which internal zone is prolonged by a supply zone beyond the other edge face 20, protruding zone.

(37) The internal zone is divided into a plurality of track strips carrying electrical tracks, with an individual width Wi of less than 5 cm in the internal zone, emerging track strips of the other edge face. The total width Wt of the internal zone (sum of the Wi values) is of more than 5 cm in order to increase the number of electrical tracks as much as possible. The track strips are, for example, in the protruding zone with the same width Wi.

(38) In the internal zone, the lamination interlayer 2 is present on the track strips and in the space, interstrip space, between neighboring track strips, with a width W.sub.S of at least 5 mm and even of at most 20 cm.

(39) In the protruding zone, the carrier for the diodes 3 is curved with a terminal part in a zone at the periphery of the face F4, adhesively bonded with a double-sided adhesive tape 83, external tape, on the front face of the carrier for the diodes. The curved zone is in this instance set back from the edge face 10.

(40) A zone of the rear face comprises an adhesive 91 for fixing a metal frame, for example the body 9 of the vehicle, and facing the zone of the external tape on the front face for the leaktightness. The adhesive is, for example, at a distance of at least 0.5 mm and of at most 5 cm from the second edge face 10 and has a width between 5 and 15 mm.

(41) The terminal part is connected to a connector 7, for example at more than 5 cm from the edge face 10. Between the curved zone and the metal frame, there may be other elements (lip, insert, and the like) which possibly will be attached to the face F4. It is possible to adjust the distance of the adhesive 91 with respect to the second edge face 10.

(42) The carrier for the diodes comprises, on the front face, another electronic component 5 of submillimetric thickness E5 chosen from one at least of the following elements: a resistive element, a capacitive element, a transistor or a microcontroller.

(43) The windshield additionally comprises an adhesive leaktight to liquid water 81, in the form of double-sided adhesive tape, positioned between the face F2 and the rear face 31 of the diode carrier in a portion of the rear face (leaving a surface area of the rear face against the face F2). This tape has a thickness E8 which is submillimetric, preferably of at most 0.2 mm, better still of at most 0.1 mm and better still of at most 0.05 mm; in particular, E3+E8 is preferably at most 0.15 mm. Preferably, it is present in the lamination zone, protrudes from the other edge face and even protrudes from the curved zone, in order to be certain that, from the edge face 10, there is no rear face and face F2 contact.

(44) It is possible to choose, for example, the product 9496LE Clear 3M from 3M for this tape, as for the external tape.

(45) For an alternative glazing with a polymeric encapsulation (for example a roof), such as polyurethane, these double-sided adhesive tapes 81, 83 can be used for leaktightness at the time of an injection of the liquid composition.

(46) The carrier for the diodes 3 and in particular the track strips is masked from the outside by a external masking layer 6 made of enamel on the face F2. The track strips are masked from the inside by a internal masking layer made of enamel 6 on the face F4 or, in an alternative form, on the face F3. The internal edge 60 of the internal layer 60 is set back from the internal edge 60 of the external layer 6 in order to allow the light from the diodes to pass.

(47) It is possible to choose, as diodes, Oslon Black Flat LUW H9QP diodes.

(48) FIG. 2 shows a partial diagrammatic view in section of a bent laminated vehicle glazing having an external luminous zone 200 in an embodiment of the invention. It differs from that described in FIG. 2 in that the diode carrier 3 is on the face F3, for example with a row of polychromatic diodes 4, with the curved zone still extending as far as the face F4. The front face 32 is directed toward the face F2 side (rear face 31 toward the face F3 side). The internal edge 60 of the external masking layer 60 is set back from the internal edge 60 of the internal masking layer 6 on the face F3 (or, in a preferred alternative form, on the face F4) in order to allow the light from the diodes 4 to pass.

(49) FIG. 3 shows a partial diagrammatic view in section of a bent laminated vehicle glazing having an internal luminous zone 300 in an embodiment of the invention. It differs from that described in FIG. 2 in that the internal edge 60 is facing the internal edge 60. The internal masking layer 6 comprises individual gaps 61 in order to allow the light from the diodes 4 to pass. The component 5 is outside the lamination in the curved zone. In an alternative form, the internal masking layer is on the face F3. An athermic and/or heating layer 16 is on the face F3 or, in an alternative form, on a plastic film, such as a PET sandwiched in PVB.

(50) FIGS. 2a, 2b each show a partial diagrammatic front view of a bent laminated vehicle glazing having an internal luminous zone in an embodiment of the invention. The masking layers on the glazings are not represented in order to see the elements and also the portion of the electrical tracks extending as far as the diodes. The PVB 2 is set back from the second edge face 10.

(51) The diode zone 30 is a rectangular strip parallel to the edge face 10, with a width W0 of 5 cm and with a length L0 of 10 cm. There are four diodes 4 in a row.

(52) The emerging zone 34 comprises, on the front face 32, two track strips 341 and 342 with the electrical tracks 33, for example of 1 mm and made of copper. Each track strip is folded over the face F4 14 (front face 32 face F3, F4 side) and is connected to an individual connector 7 (or, in an alternative form, a common collector). The curved zone is set back from the edge face 10 of the first glazing.

(53) FIG. 2b differs from FIG. 2a in that the second glazing exhibits a notch 15, for example of 2 mm, in which the track strips 341 and 342 are curved. PVB 2 set back from the second edge face 10 can be present on the notch 15.

(54) FIGS. 4i to 4m show, in front view, internal glazings 1 with their internal masking layer forming a masking frame 6 made of enamel (on the face 14, F4) and FIGS. 4i to 4m show, in front view, external glazings 1 with their external masking layer on the face 12, F2, forming a masking frame 6 made of enamel masking the carriers for the diodes 3.

(55) The internal edge 60 of the layer 6 can have a graduated transition of patterns toward the center of the glazing. The layer 60 has common or individual gaps 61, 62, for allowing the light from the diodes to pass, in the diode zone 30 while masking the three track strips 341, 342, 343, for example along the lower longitudinal edge or even in a thicker central zone of the lower longitudinal edge (location of a rearview mirror, and the like).

(56) FIGS. 4mto 4nshow, in front view, external glazings 1 with their external masking layer on the face 12, F2, forming a masking frame 6 made of enamel masking the track strips 34. The diode zone is in the clear glass area nearby and preferably the carrier and the electrical tracks are transparent

(57) FIGS. 4m to 4n show, in front view, internal glazings 1 with their internal masking layer forming a masking frame 6 made of enamel (on the face 14, F4) or even without masking frame (FIG. 4n).

(58) FIGS. 5, 6, 7, 8, 9, 10, 11 each show a partial diagrammatic front view of a bent laminated vehicle glazing having an internal luminous zone in an embodiment of the invention. The masking layers on the glazings are not represented in order to see the elements and in this instance the carriers are not shown folded.

(59) In FIGS. 5 to 7, the diode zone 30 is a rectangular strip parallel to the edge face 10, with a width W0 of 5 cm and with a length L0 of more than 12 cm. There are two rows of twelve diodes 4.

(60) The emerging zone 34 of the edge face 10 comprises three track strips 341 to 343 with a width of 4 cm spaced out by 1 cm. The interstrip space 351 and 352 is filled with PVB. Each of the interstrip space 351 and 352 has an end 350 near zone 320. The rear faces of the track strips are adhesively bonded to the face F2 by individual double-sided adhesive tapes 811, 812, 813 or by a common tape 811, for leaktightness.

(61) For good positioning, one or more double-sided adhesive tapes 821, 822, 823 is/are placed on the front face 32, with a thickness of at most 0.2 mm, for example transparent, on either side of the rows of diodes or under the innermost row or on the track strips. It is possible to choose, for example, the product 9496LE Clear 3M from 3M.

(62) The track strips are in the protruding zone with the same width Wi and are sometimes connected (FIGS. 6 and 7) over a width D of at least 0.5 cm and preferably redeployed as strips (FIG. 6) as far as a terminal part of the diode carrier leading to the connectors 71, 72, 73.

(63) The track strips can have, in the emerging zone, on the front face, a common or individual double-sided adhesive tape 831, 832, 833. The carrier 301 to 303 can carry other components 5.

(64) The edge face of the diode zone 30 defines linking zones 350 between neighboring track strips which are straight (FIG. 5) or else arc-shaped (FIG. 7).

(65) In FIG. 8, the L-shaped carrier 303 comprises two diode zones each with two emerging tracks strips 341 to 344 on adjacent edge faces of the second glazing 1. The alignment adhesive tape 821 is between the diode zones. The tracks strips 341 to 344 lead to connectors 71, 72, 73, 74, respectively. The tracks strips 341 to 344 are bonded by individual double-sided adhesive tapes 811, 812, 813, 814.

(66) In FIG. 9, the diodes 4 are polychromatic, which involves more electrical tracks 33 (four per diode) on the carrier 305.

(67) In FIGS. 10 and 11, the diodes 4 form a luminous pattern, namely an arrow, just like the diode zone 30 of the carriers 306, 307. It is possible to provide cutouts 351, 352 (straight lines, arcs, and the like) between the rows of diodes.

(68) FIG. 12 shows a diagrammatic view, on the face F1 side, of a bent laminated sunroof 2000 mounted on a motor vehicle, which roof has two internal luminous zones in an embodiment of the invention close to the edge 60 of the enamel frame 6.

(69) In each zone, the diodes 4 form a luminous pattern 308, 308, namely a circle, just like the diode zone 30 of the carrier 308, 308. The emerging zone comprises two tracks strips 341, 342 with a space 351 between them.

(70) FIG. 13 is a diagrammatic front view (face F1 or face 11 side) of a rear window having external luminous signaling 3000 in an embodiment of the invention.

(71) In the central zone 18, a third stop lamp 101, for example red diodes, is formed along the upper longitudinal edge and on the carrier for the diodes 309 (having three track strips 341 to 343).

(72) In each lateral zone 17 and 19, an indicator with, for example, diodes is formed along the lateral edge involved, emitting in the yellow region, on the carrier for the diodes 310 (having three track strips 341 to 343), or else a signalling lamp with, for example, diodes is formed along the lower longitudinal edge involved on the support for the diodes 311 (having three track strips 341 to 343).

(73) Alternatively, a turn signal indicator is formed on a side window in the same way.

(74) FIG. 14 is an exploded diagrammatic view of a bent laminated vehicle glazing in an embodiment of the invention showing the use of a PVB 2 with through holes 23 for housing the diodes 4 on the carrier 3 on the face 12 side (rear face 31 adhesively bonded by an adhesive tape 811) before the lamination of the two glasses 1, 1. The protruding part 341 of the carrier 3 is folded over on the face 14, adhesively bonding it by an adhesive tape 831 on the front face 32.