CN110621498A - Laminated glazing comprising an electrically controlled device and production - Google Patents

Abstract

The present invention relates to a laminated glazing comprising an electronic control device and its preparation, including the operation of pre-assembly with thin plastic strips.

Description

Laminated glazing containing electronic controls and preparation

The present invention relates to a laminated window glass incorporating an electronic control device and a method for producing the same.

Motor vehicle glazings are increasingly incorporating luminous signaling or lighting functions by means of inorganic electroluminescent diodes.

Document WO2016079459 describes a luminescent laminated glazing forming the windscreen of a motor vehicle, which integrates diodes on a printed circuit board (PCB) in order to transmit a luminous signal warning the driver.

More precisely, in the embodiment related to Figure 5 of this document, the illuminated windshield includes:

- laminated window glass, which contains:

- a first pane of glass, which forms the outer pane of glass, having first and second main faces called F1 and F2,;

- Laminated interlayer made of poly(vinyl butyral) (PVB)

- a second pane of glass, which forms an inner pane of glass, with third and fourth main faces called F3 and F4,

The second and third sides are the inner sides of the laminated glazing;

- a set of diodes on a printed circuit board (PCB) capable of emitting a red signal light to warn the driver, each diode having an emitting surface emitting in the direction of the inner glass on the "front" side of the PCB, .

- On the back side of the PCB, a double-sided tape with a thickness of less than 0.05mm, which forms the connection between the glass plate and the PCB.

The formation of air bubbles in the double-sided tape or even the formation of haze of the (scotch) tape was observed, which can lead to appearance defects. The use of such double-sided tapes is also limited from a process point of view, and is prone to contamination, trapping dust, and the like.

The preparation of such luminescent laminated glazings for motor vehicles or any other application (buildings, interior or exterior, equipment, etc.) can thus be improved. More broadly, the manufacture of any laminated glazing that incorporates (discrete, surface, etc.) electrical control devices can be improved.

A first subject of the present invention is therefore a method for producing a glazing with an electronic control device, in particular a vehicle comprising, in particular, a curved laminated glazing, the method comprising:

- a transparent first glass pane, in particular of inorganic glass or plastic, in particular curved, - optionally transparent, extra-transparent or coloured, in particular grey or green, preferably curved - usually formed with The outer glass panes of the first and second main sides, called face F1 and face F2 respectively, in particular F1 or F2 are each bare or coated with a layer (transparent or opaque), especially an inorganic layer (functional layer) , single or multi-layer, etc., especially layers with a thickness of up to 50 μm or even submicron) For automotive glazing, the thickness is preferably up to 2.5 mm, even up to 2.2 mm, - especially 1.9 mm, 1.8 mm, 1.6 mm mm and 1.4mm - or even up to 1.3mm or up to 1mm of glass;

- a transparent second glass plate, in particular made of preferably transparent, extra-transparent or even coloured inorganic glass or of plastic, in particular curved, which generally forms a third plate with faces F3 and F4 respectively and the inner glass panes of the fourth main face, in particular F3 and F4, are each bare or coated with layers (transparent or opaque), in particular inorganic layers (functional layers, mono- or multi-layer, etc., in particular with a thickness of up to 50 μm or even sub-micron-sized layers)), for glass panes whose thickness is preferably less than the thickness of the first glass pane, even at most 2.2 mm - especially 1.9 mm, 1.8 mm, 1.6 mm and 1.4 mm for automotive glazing -- or even at most 1.3 mm or at most 1 mm, the total thickness of the first and second glass sheets is preferably strictly less than 4 mm, or even less than 3.7 mm,

Preferably, at least one of the first and second glass sheets is made of inorganic glass, in particular F1 or F2 or F3, F4, each bare or coated with a layer (transparent or opaque) in particular inorganic layers (functional layers, single or multiple layers, etc., especially layers with a thickness of up to 50 μm or even submicron);

- a laminated interlayer made of thermoplastic polymer material, in particular made of one or more sheets, in particular with a main face FA in adhesive contact with the second face F2 (bare or coated) and with the face F3 (bare or coated) main face FB in adhesive contact, in particular with a sub-centimeter thickness e1, preferably the ground floor F2 and the majority of face F3 in adhesive contact with the laminated interlayer, for automotive glazing, where e1 is preferred be at most 1.8mm, preferably 1.2mm, even at most 0.9mm (preferably at least 0.3mm, even at least 0.5mm), in particular set back at most 2mm from the edge of the first glass pane and retract from the second The edge of the glass plate is retracted by up to 2 mm,

Preferably, at least one of the first and second glass panes is made of inorganic glass, and the laminated glazing comprises between faces F2 and F3:

- electronic control devices, in particular (elongated, e.g. square, rectangular, L-shaped, T-shaped, comb-shaped, etc.) strips, including supports, in particular (elongated, e.g. square, rectangular, L-shaped, T-shaped, etc.) Comb-shaped etc.) strips, in particular width W2 of at most 1 meter or at most 40 cm, even at most 20 cm, 10 cm or 5 cm, thickness e2 especially sub-millimeter, even at most 0.15 mm, with front face, back The face and the edge face, the front face carrying the electronic control system in the area called the functional area, the electronic control system having a thickness e'2, preferably sub-millimeter, in particular with in particular at most 5 cm or sub-centimeter (discrete elements). etc.) or a width W'2 almost equal to W2 (surface system), and this front face optionally includes a power supply area adjacent to the functional area, in particular with openings, even with edges from the first or second glass pane a projecting extension, the electrical control device has a smaller surface than the laminated interlayer, so that the device is located in the (especially the peripheral) area of the glazing;

And the glazing includes:

- on the back side, in particular as opposed to functional areas provided with discrete (opto)electronic elements or provided with surface systems, polymer connecting elements with a thickness e3 of at most 0.3 mm, 0.25 mm or even at most 0.15 mm, especially is 25 to 100 μm, 40 to 70 μm, or even up to 50 μm, in adhesive contact with the back face and with one of the faces F2 and F3, called the contact face (bare or coated with the aforementioned layers), in particular With a width W3 of at least 0.8W2 or 0.9W2 and/or at most 1 m or at most 40 cm, even at most 20 cm, 10 cm or 5 cm, the connecting element is preferably located on the surface below the laminate interlayer;

The method includes the following steps:

- before lamination, a pre-assembled element is provided comprising the electrical control device, the connecting element and optionally at least one laminated interlayer (called a fitting sheet), the connecting element comprising a plastic strip, preferably a thermoplastic strip The strip, which has a main face, called the connection face _FL , faces the back face of the support, preferably in the functional and/or power supply zone, in particular it (mainly) covers the back face, preferably a plastic strip from The edge face of the support body is retracted back up to 5mm, 2mm or 1mm, either flush with or protruding from the edge face of the support body (preferably over a limited area) and the plastic strip has a connection with Free (non-bonded) major face F' opposite face _FL ;

- the connection surface _FL is adhesively contacted or bonded to the back surface (the connection surface _FL protrudes from the edge surface of the support body or does not protrude from the edge surface of the support body);

and / or

- the connection face _FL protruding from the edge face of the support body on at least one side (in particular at the boundary of the functional and/or power supply zone in question), which defines an area facing one of the main faces of the assembled sheet A projecting zone ZD of ZA, the projecting zone ZD being in adhesive contact or bonding with the zone ZA, ZA preferably at most 10 cm, 5 cm or 1 cm from the edge face of the support, even on two preferably opposite sides, On three sides, projecting on the perimeter of functional areas etc., in particular connecting with another projecting area ZE facing the area ZB of one main face of the assembled sheet, for example ZD and ZE from two on the support body Opposite sides protrude, ZA and ZB preferably at most 10 cm, 5 cm or 1 cm from the edge face of the support;

- placing the pre-assembled element between the first and second glass before, after or at the same time as the lamination interlayer is placed between the first and second glass sheets;

- and the step of lamination with said pre-assembled element, including placing under vacuum, even under pressure, and heating, said lamination step brings about (bare) free face _FL in contact with (of said layer) Surface-bonded contact, the contact surface is in particular bare or coated so that the entire surface of the free surface _FL is in adhesive contact with this contact surface:

- and in particular make the laminated interlayer, in particular the assembled sheet (if necessary), in adhesive contact with the faces F2 and F3 (in different areas, especially in different areas adjacent to the area with the electronic controls).

Double-sided tapes used in prior art illuminated laminated roofs require removal of the protective film (liner). Furthermore, the surface is sticky before positioning, so does not allow easy readjustment of the support if necessary. Additionally, liner residue can cause blistering or clouding.

According to the invention, in order to simplify and speed up the production of the glazing, pre-assembled elements by gluing or adhesive contact are used outside the lamination line.

Thus, the plastic strips are already attached (over the entire surface or in spots) to the device and/or the assembly sheet. In the latter case, the strips are extended (larger than the device), the connection between the strips and the sheet can be used only to hold the device, and no additional connection of the backside and the plastic strip is required.

The plastic strip can be bonded to the surface of the glazing by lamination. Unlike double-sided tape, the free side of thermoplastic tape is non-bonded and ready to use. The plastic strip according to the invention allows precise positioning without losing time on the production line.

Therefore, the preparation method is optimized and more compatible with automation.

The (thermoplastic) plastic strip also allows degassing (the escape of microbubbles generated during the degassing cycle in the drying oven), the vacuum is used to remove the plastic (preferably thermoplastic) of the strip to the contact surface Air bubbles that existed before the desired temperature. Therefore, the (thermoplastic) plastic tape can be more transparent than the double-sided tape.

Thus, thermoplastic strips can provide better mechanical strength, especially when the support is large.

After placing the pre-assembled elements and the laminated interlayer (in particular, if necessary, assembling the sheets), it is conceivable to bring the pre-assembled elements into point-bonded contact with the contact surface and/or to make the laminated interlayer (in particular, If necessary, the assembled sheet) is in point-bonded contact with the contact surface to hold it in place before placing it under vacuum.

The (local) electrical control device may be partially laminated to the glazing, eg up to 50%, 40% or 30%, or even up to 20% or 10%. Additionally, the (partial) (thermoplastic) plastic strips may be partially laminated to the glazing (eg at most 50%, 40% or 30%, or even at most 20% or 10%). The coverage of the strips may preferably be the same as or slightly larger than the coverage of the electronic control device.

The area of the laminated interlayer (assembled sheets etc.) is ((substantially)) higher than the area of the strip and can cover at least 70%, 80%, 90% or 95% of the glazing with the electronic controls. The laminated interlayer (assembled sheets, etc.) may be retracted, in particular up to 2 mm, from the edge face of the first glass sheet (and/or the second glass sheet). When the support (and strip) does not protrude from the first or second pane of glass, it is preferred that the lamination interlayer surrounds the support (so an intermediate layer exists between the support and the edge face of the closest laminated glazing) .

Therefore, a thin plastic strip whose area is smaller than the interlayer (smaller than the assembled sheet) is preferred for cost optimization and even better handling during manufacture due to its thinness.

The plastic strip according to the invention is referred to herein as the back plastic strip because it is connected to the back face.

When the contact surface is bare (facing the connecting element), the connecting element (and thus the plastic strip) is in direct adhesive contact with the contact surface.

When the contact surface is coated with layers (single or multiple layers), in particular functional layers (masking layer, conductive layer, low emissivity layer, heating layer, etc.), facing the connecting element, the connecting element (hence the plastic strip) is connected to the contact Indirect adhesive contact between surfaces. Inorganic layers are preferred. Preferably it is a deposited layer, eg obtained by deposition by a liquid phase route (screen printing, printing, etc.), physical vapour deposition (cathode sputtering) or even chemical deposition.

In particular, there is preferably no laminated interlayer (PVB, etc.) between the free main face F' and the contact face. A special case is the insertion of another device between the free main face F' and the contact face, which can itself be pre-assembled or accommodated in the laminate sandwich, covered by the laminate sandwich.

The shape of the plastic strips can be adjusted appropriately, using rectangular, square, L-shaped, F-shaped, E-shaped or comb-shaped strips for simplicity, in particular similar to the shape of the support.

The (thermoplastic) plastic strip can protrude from the edge face of the support body in the area of the laminated glazing with the laminated interlayer, preferably at most 20 cm, 10 cm or 5 cm, even 1 cm from the edge face of the support body, in order to facilitate Placement (not folded, etc.), especially if pre-assembly takes place between the back face and the plastic strip.

In the present invention, the expression "at most X, Y or Z" means "at most X, (even) at most Y and (even) at most Z".

According to one configuration, the plastic strip is transparent (and free of defects), the support is transparent (the electronic control system is optionally transparent or at least allows for overall transparency), the pre-assembled elements are in the first and The position between the second glass sheets is in the transparent area of the first and/or second glass sheet, the transparent strip covering said functional area at least on the side opposite to said functional area.

In one configuration, the method includes forming the pre-assembled element according to at least one of the following configurations (a) or b) or a)+b)):

a) Assemble the connecting element together with the support body with the connecting face _FL in adhesive contact or bonding with the back face, with the connecting face _FL in adhesive contact over the entire surface or through a series of spaced dots of adhesive Spot-like adhesive contact with the back face or to the back face, for example spot-bonding over the entire surface or multiple surface connection faces FL via a series of spaced-apart spot-bonding areas or by means of an adhesive frame ( adhesive tape or double-sided tape), for example at the perimeter - forming a seal - or by an adhesive tape (adhesive bead or double-sided tape), such as two peripheral strips;

b) and/or assembling the connecting element with the laminate sandwich so that the protruding area ZD is in adhesive contact with the area ZA over the entire surface or in the form of an adhesive contact through a series of spaced points or the connecting surface in particular through a series of points The shaped bonding area or its entire surface is bonded to the area ZA;

Double-sided tape can be used this time because the operation is outside the lamination line.

Without the addition of adhesive material, the adhesive contact is preferably achieved by softening the plastic strip, preferably a thermoplastic, which results in an adhesive contact between the faces.

Particularly advantageously, the adhesive contact is achieved by heating and optionally also by pressure, in particular by induction heating, by means of hot air, or by radiation (laser) or by the use of solvents such as alcohol.

Particularly and advantageously, the adhesive contact is a point contact and is achieved by local heating and optionally also by pressure, in particular by induction heating, by means of hot air, or by radiation (laser) or by the use of solvents such as alcohol.

Each point-like adhesive contact has, for example, a width of at most 15 mm.

Each point-like adhesive contact has, for example, a width of at most 15 mm.

As a heating tool, in particular a localized or multiple localized heating tool (and better to apply pressure), a metal pen ("soldering iron") with a flat end (and preferably with a non-stick coating) that allows heat to pass through can be used (Silicone, Teflon, PTFE, Elastomer, etc.), one or more heating fingers or a heat gun.

For all contact points, point-like adhesive contact can be achieved in one operation. Heated tools can be selected that allow the creation of different punctiform bond points in a single operation.

Localized heating may allow for localized adhesive contact not only between the strip and the backside support, but also between the device and the interlayer sheet.

Localized heating can be achieved by applying a heating tool on the back face side and/or the front face side. The back side is preferred.

During the pre-assembly operation with the connecting element, the electronic control device is, for example, on the first sheet of the laminated interlayer, the face of the first sheet, which is located on the opposite side of the connecting element, and the first sheet of the laminated interlayer. Two sheets, in particular assembled sheets, are placed on the first sheet, and the localized heating causes the first sheet to come into point-like contact with the second sheet.

During the pre-assembly operation together with the connecting element, the front face of the electronic control device is located on the first sheet of the laminated interlayer, in particular the assembled sheet, the localized heating causes the The front face of the electronic control device is in point contact with the first sheet of the laminated interlayer.

In one configuration, the (thermoplastic) plastic strip and the lamination interlayer are in contact or spaced apart before lamination, for example at most 5 mm or 1 mm, and after lamination (by creep) the (thermoplastic) plastic strip is Continuous contact with the laminate interlayer leaves no space between the backside and the contact surface.

Preferably, the strip is thermoplastic, based on or made from poly(vinyl butyral) (PVB), which contains less than 15% by weight, preferably less than 10% by weight, even less than 5% by weight of plasticizer, in particular Free of plasticizers, in particular with a thickness e3 of at most 0.15 mm, especially 25 to 100 μm, 40 to 70 μm, even at most 50 μm. Furthermore, the laminated interlayer is based on poly(vinyl butyral) (PVB) - with plasticizers, in particular with more than 15% by weight of conventional plasticizers - in particular with at least 0.3 mm, even at least 0.6 mm mm thickness.

Preferably, the support is flexible, made of plastic, better transparent, preferably polyester, in particular polyethylene terephthalate or polyimide, in particular With a thickness of 25 to 150 μm and even 50 to 100 μm. More broadly, the support can be made of plastic material, in particular thermoplastic, polyethylene terephthalate PET, polyethylene naphthalate PEN, polyethylene PE, poly(methyl methacrylate) ester) PMMA, polydimethylsiloxane PDMS, polyamide, polyimide, polyacrylate, polyester, polycarbonate, polysulfone, polyethersulfone, or thermoplastic polyurethane.

If one or more partial cuts are made in the support, the thermoplastic strip can be monolithic/intact or have partial cuts.

A glazing with electrical controls may include one or more spaced other electrical controls, each with a strip of plastic or with a common strip of plastic, for example along a portion or all of the edge of the laminated glazing.

When the support has a curved L shape etc., the shape of the plastic strip can be adjusted accordingly, or for simplicity, a rectangular, square strip is used. For example, in such a configuration with a rectangular strip and a first L-, F- or E- or comb-shaped support, the plastic strip may be distinct from the first support in the direction of the closest edge of the first glass sheet the edge faces stick out.

The support may be sufficiently flexible (extensible) to accommodate the curvature of the curved laminated glazing.

The support body can be associated with a flat connector extending to the edge face of the pane and even beyond said edge face. Flexible connectors, including plastics, such as PEN or polyimide, that can accommodate the curvature of the glazing, are preferred. The width (dimension along the edge face) of the flat connector can be smaller or equal to the size of the (diode) support, in particular along the edge face.

The (flexible) support may be local, eg less than 10% of the surface of the upper laminated glazing, in particular in the peripheral area of the laminated glazing (of the windscreen).

After lamination, the preferably flexible support may comprise an external supply portion extending to and from the edge face of the laminated glazing, even folded over face F4 (or F1 ).

Thus, prior to lamination, the (thermoplastic) plastic strip can protrude from the edge face of one of the first and second glass sheets and be folded over the face F4 or F1 by being pre-attached to the face F4 or F1, The tape is then removed after lamination.

In another embodiment, the laminated interlayer comprises a (colored, wedge-shaped, acoustic multilayer, wired, PVB/PET/PVB composite assembly) sheet prior to placing the pre-assembled element with the connecting element material, called the front sheet, which is optionally the assembled sheet, with a main face Fx, which is placed against the front face of the electronic control device, in particular the front face of the support (first having as ( A discrete system of opto)electronic components, and the main face Fx optionally comprising said zone ZA. After lamination, the front (in particular a single) sheet (face Fx) is brought together with the front face of the device, in particular the support The front face of the support is in adhesive contact (the front face of the support can be bare or covered with circuitry, etc.).

When the laminated interlayer comprises a single sheet, the front sheet may be in adhesive contact with the other (mostly) of sides F2 or F3 and the contacting side (mostly).

When the laminated interlayer comprises a second sheet (in particular an apertured sheet with slots for accommodating the device) on the face Fx side, the second (apertured) sheet can be in contact with the face (mostly) Adhesive contact and the front sheet may be in adhesive contact with the other (mostly) of faces F2 or F3. The front sheet may have a blind slot in the area of the electronic control device, which extends the slot of the second (perforated) sheet.

When the electronic control system is too thick but discrete (dot-like), holes can be made in the front sheet dedicated to the electronic control system, such as for the diodes in the above-mentioned prior art or more widely For other electronic control systems ((optical) electronic components, etc.). Thus, in the first configuration, the main face Fx of the front sheet comprises at least one through hole or blind hole, whose width W1 is at most 20mm, 15mm, 10mm, 5mm or 2mm and even whose length is at most 10mm, 5mm or 2 mm, accommodating so-called discrete electronic control systems, especially (opto)electronic components such as photodiodes or inorganic diodes, where e'2 > 0.15 mm (needs to cut the interlayer), especially sub-millimeter, or even at most 0.5 mm , its width W'2 is at most 20 mm, 10 mm, 5 mm or 2 mm, its length is at most 10 mm, 5 mm or 2 mm, and even e2 < 0.15 mm and e3 < 0.15 mm. The front sheet is brought into adhesive contact with the front face of the support. In particular, the hole is wider than the area of the electronic control system (optoelectronic device), preferably at most 0.5 mm or even at most 0.1 mm. Optionally, the holes are through holes.

Naturally, the main face Fx of the front sheet may comprise as many holes as there are components on the support or holes in common with a number of components adjacent on the support.

When the electronic control system is too thick but a surface system (large enough area) it is preferably accommodated in through holes or blind holes in the laminated sandwich sheet. Thus, in the second configuration, the laminated interlayer comprises an apertured sheet (monolithic, composite sheet, etc.) ), thus including a hole (blind or through hole) that accommodates the electronic control system and all or part of the support (all or part between the glass plates, at least the functional area, and all or part between the glass plates Part of the power supply area, preferably different from the groove, i.e. different from the through peripheral hole, and preferably surrounding all or part of the edge face of the device, the apertured sheet has a main face Fx which is free and optionally includes said zone ZA (towards the contact face after placement) and optionally zone Z'A, the (thermoplastic) plastic strip facing the hole, with a gap between the face Fx and the free face of the plastic strip. Height difference H1, the difference is at most 0.3mm, 0.2mm or 0.15mm.

In particular, the free face of the plastic strip is at most 0.3 mm, 0.2 mm or 0.15 mm below said face, and at most 0.3 mm, 0.2 mm or 0.15 mm at the most flush with face Fx or protrudes (with extra thickness).

In particular, the electronic controls are exposed from the perforated plate (back or front side of the support) before lamination with the pre-assembled elements including the connecting elements, the electronic controls are spaced apart from the main face Fx by a non-zero height H2, the height H2 is greater than e2 (and less than e2+e'2), H2 is at most 0.3mm, 0.2mm or 0.15mm, and the back surface is exposed from the apertured sheet. The method consists in positioning a further plastic strip, preferably a thermoplastic strip (even plastic, which is the same as said plastic strip on the back side), the strip forming a frame on all or part of the edge face of the support, which The thickness Ex is at most 0.15 mm and less than or equal to H2, and is close to the edge face of the support or at a distance of at most 1/0.5 mm from the support, and faces the area of the perforated plate.

The additional plastic strip has a free main surface F" opposite the connection surface FC, the additional plastic strip optionally comprises a single strip or a plurality of stepped plastic strips, where Ex is the total thickness of the plastic strip

And, by means of a lamination step, said free face of the additional plastic strip is brought into adhesive contact with the contact face.

In particular, before the pre-assembly element is placed between the first and the second glass sheet, the connection face FC can be brought into adhesive contact with the apertured sheet, which adhesive contact is Pre-assembled tools (softening, local heating, etc.) are carried out. The holes or slots are, for example, blind holes in the first or second PVB.

In one structure, such as for motor vehicle or building windows or furniture doors (equipment, etc.), the first pane of glass is an exterior pane of glass, the first face is often referred to as face F1, and the second face is often referred to as face F2, and the second glass sheet is the outer glass sheet, the third side is commonly referred to as face F3, and the fourth side is commonly referred to as face F4.

In alternative structures, such as motor vehicle or building windows or furniture doors (equipment, etc.), the first pane of glass is an exterior pane of glass, the first face is commonly referred to as face F4, the second face is commonly referred to as face F3, The second glass sheet is the inner glass sheet, the third side is generally referred to as face F2, and the fourth side is generally referred to as face F4.

In one structure:

- the first and second glass panes are made of inorganic glass;

- the first glass plate is made of inorganic glass, the second glass plate is made of plastic, eg thinner (film) etc., eg PC, PMMA or PET;

- The second glass plate is made of inorganic glass, the first glass plate is made of plastic, eg thinner (film) or the like, eg PC, PMMA or PET.

The laminated glazing with electronic control according to the invention can form part of a double glazing (glass panes on the exterior side of a building or glass panes on the interior side of a building), or even triple glazing.

For buildings, laminated glazing can form part of partitions, appliance doors, windows or roofs.

Another subject of the invention is a glazing with an electrical control device, obtained in particular according to the production method as described above, comprising a laminated glazing comprising:

- a transparent first glass pane, especially made of inorganic glass or plastic, especially curved - optionally transparent, extra-transparent or coloured, especially grey or green, preferably curved, which usually forms the outer glass Plate - has a first and a second main face called face F1 and face F2 respectively, in particular F1 or F2 are each bare or coated with a layer (transparent or opaque) especially an inorganic layer (functional layer) , single or multi-layer, etc., especially layers with a thickness of up to 50 μm or even submicron) For automotive glazing, the thickness is preferably up to 2.5 mm, even up to 2.2 mm, - especially 1.9 mm, 1.8 mm, 1.6 mm mm and 1.4mm - or even up to 1.3mm or up to 1mm of glass;

- a transparent second glass plate, in particular made of preferably transparent, extra-transparent or even coloured inorganic glass or of plastic, in particular curved, which generally forms a third plate with faces F3 and F4 respectively and the inner glass panes of the fourth main face, in particular F3 and F4, are each bare or coated with a layer (functional layer, mono- or multi-layer, etc., especially layers with a thickness of at most 50 μm or even sub-micron), For automotive glazing, the thickness is preferably less than the thickness of the first glass pane, the thickness is even at most 2.2 mm - especially 1.9 mm, 1.8 mm, 1.6 mm and 1.4 mm - or even at most 1.3 mm or at most 1 mm, The total thickness of the first and second glass sheets is preferably strictly less than 4 mm, or even less than 3.7 mm,

Preferably, at least one of the first and second glass sheets is made of inorganic glass, in particular F1 or F2, each bare or coated with a layer, in particular an inorganic layer (functional layer, single or multiple layers) layers, etc., especially layers with a thickness of up to 50 μm or even sub-micron);

- a laminated interlayer made of thermoplastic polymer material, in particular made of one or more sheets, in particular with a main face FA in adhesive contact with the second face F2 (bare or coated) and with the face F3 is in adhesive contact with the main face FB, in particular with a sub-centimeter thickness e1, preferably the ground floor F2 and the majority of the face F3 is in adhesive contact with the laminated interlayer, for automotive glazing, where e1 is preferably at most 1.8 mm, best be at most 1.2 mm, even at most 0.9 mm (preferably at least 0.3 mm, even at least 0.5 mm), especially set back at most 2 mm from the edge of the first glass sheet facing back and from the edge of the second glass sheet up to 2 mm,

Preferably, at least one of the first and second glass panes is made of inorganic glass, and the laminated glazing comprises between faces F2 and F3:

- electronic control devices, in particular strips (elongated, eg square, rectangular, L-shaped, T-shaped, comb-shaped, etc.), including supports, in particular (elongated, eg square, rectangular, L-shaped, T-shaped, Comb-shaped etc.) strips, in particular width W2 of at most 1 meter or at most 40 cm, even at most 20 cm, 10 cm or 5 cm, thickness e2 especially sub-millimeter, even at most 0.15 mm, with front face, back The face and the edge face, the front face carrying the electronic control system in the area called the functional area, the electronic control system having a thickness e'2, preferably sub-millimeter, in particular with in particular at most 5 cm or sub-centimeter (discrete elements). etc.) or a width W'2 almost equal to W2 (surface system), and this front face optionally includes a power supply area adjacent to the functional area, in particular with openings, even with edges from the first or second glass pane a projecting extension, the electrical control device has a smaller surface than the laminated interlayer, so that the device is located in the (especially the peripheral) area of the glazing;

- on the back face, a polymer connecting element, which is a plastic strip with a thickness e3 of at most 0.3 mm, 0.25 mm, even at most 0.15 mm, in particular 25 to 100 μm, 40 to 70 μm, even at most 50 μm, with the back face and In adhesive contact with one of the faces F2 and F3 (here called the contact face), the connecting element has a lower surface than the laminated interlayer, in particular at least 0.8W2 or 0.9W2 and/or at most 1 m or at most 40 cm, Even up to a width W3 of 20 cm, 10 cm or 5 cm, the connecting element is located on the surface below the laminate interlayer.

Preferably, one or more of the following features are provided:

- the plastic strip is thermoplastic, based on, or even made from, poly(vinyl butyral) (PVB), which contains less than 15% by weight, preferably less than 10% by weight, even better less than 10% by weight % of plasticizer, in particular free of plasticizer, and the laminated interlayer is based on poly(vinyl butyral) (PVB), in particular contains more than 15% by weight of plasticizer;

- Transparent (thermoplastic) plastic strip having less than 5% haze and no bubble type defects (less than 0.1 mm in size), having a TL of at least 70%, 80% or 90%, transparent support and thermoplastic strip assembly Have a TL of at least 70% and have a haze of less than 5%;

- the plastic strip protrudes from the back face on at least one side and even on both sides (up to 10 cm), in adhesive contact with the laminated interlayer;

- the laminated interlayer is made of poly(vinyl butyral) (PVB), in particular PVB has openings or slots containing electrical control means, optionally:

- be acoustic, especially for windshields or roofs of vehicles and/or be wedge-shaped, especially for windshields;

- optionally with (heating, etc.) wires;

- or to form a composite PVB/functional plastic film element or a first PVB/functional plastic film/second PVB composite element, preferably a transparent functional plastic film, such as polyester or PET, with a particularly conductive functional layer, in particular Ground PVB with blind vias or slots in the first PVB.

The electronic control system may in particular be selected from:

- Capacitive or inductive control switches, antennas;

- one or more (opto)electronic components (surface mounted on the front side of said support), especially discrete, especially width W2 < 20 mm, especially sensors, cameras, photodiodes or inorganic electroluminescent diodes , including micro LEDs;

and

-l) bringing the plastic strip and the laminated interlayer into adhesive contact with the front face of the support, in particular the laminated interlayer accommodates one or more (opto)electronic components in through holes or blind holes, wherein in particular e'2 >0.15mm and e2<0.15mm, and even e3<0.15mm, preferably with a dedicated hole per (opto)electronic component.

The sensor in the laminated glazing, in particular has a width W'2 of at most 10 mm and/or a thickness of at most 2 mm or 1 mm, and is for example selected from at least one of the following sensors:

- rain detectors (preferably in the wiper area), typically 100mm² to 600mm² in size;

- cameras in the visible spectrum (anti-collision detectors, detectors for detecting objects or people, whether or not in motion) or infrared cameras (night vision, anti-collision detectors for objects or people, whether in motion or not) , for example having a trapezoidal shape) or even multiple cameras of the same type for stereo vision, in particular CCD (Charge Coupled Device) and CMOAS (Complementary Metal Oxide Semiconductor) type vision sensors;

- one or more (usually six) light sensors, such as photodiodes, typically measuring 1.2 x 1.4 mm ² to 1.4 x 1.8 mm ² , or even having a thickness e'2 of at most 0.7 mm or even 0.7 mm and/or having a width W'2 of at most 2 mm, eg type APDS-9005 from AVAGO TECHNOLOGIES;

- Thermometers, thermocouples, usually wires of thickness 0.5 mm or less;

- an alarm sensor (detecting defects in the integrity of the window pane, etc.), usually with a conducting wire with a diameter of 12 to 150 μm or through a conducting layer (on face F2 or F3);

- condensation detectors connected to (resistive, etc.) heating elements - such as anti-fog, anti-condensation or anti-freeze devices - typically 100 to 200 cm² in size, for example integrated in rain detectors;

- a sensor forming an antenna, such as a conductive wire, typically 12 μm to 0.5 mm thick, for receiving and/or transmitting electromagnetic waves (radio, TV, especially local communication networks such as Bluetooth, Wi-Fi, WLAN), especially in Laminated or embedded in polymeric materials (films, etc.);

- Acoustic sensors (based on piezoelectric elements);

- an ultrasonic signal detector, preferably on face F2 (eg based on piezoelectric elements);

- diagnostic sensors based on a conductive layer (over the entire surface) (faults in laminated glazing of motor vehicles, in particular windshield or side glazing);

- Control detectors (wiper, etc.) such as IR control or voice (piezo) control.

The electronic control system may be a surface system, in particular having a width W2 of at least 20 mm or even 50 mm, and selected in particular from:

- Surface light systems, such as OLED organic electroluminescence systems (which can form pictograms etc.), TFELs (thin film electroluminescence elements) or quantum dot light emitting diodes called QLEDs;

- Dynamic signage systems (screens) using any technology such as AMOLED technology,;

- (variable scattering) liquid crystal systems, especially PDLC systems (top strips for windshields, office dividers, etc.), light valves, electrochromic systems, especially laminated interlayers to accommodate the device (through a slot);

and / or:

i) The plastic strip extends from the support and is in adhesive contact with the laminate interlayer, and preferably in adhesive contact with the front face of the support.

For AMOLED screens, reference may be made to those described in patents WO2017/115040, WO2017/115041, WO2017/115042 and WO2017/115043.

For OLEDs forming pictograms or backlit pictograms (enamel etc.), reference may be made to those described in patents WO2017103425 and WO2017103426.

For liquid crystal systems, such as partitions for residential use, reference may be made to those described in patents WO2011/161391 and WO2012/045973.

For liquid crystal systems, such as solar protection strips in windshields or as light valve systems (SPD), reference may be made to those described in patents DE102013001334A1, DE102005049081B3, DE102005007427A1, DE102007027296A1 and US-2015-0331296.

As light-emitting touch switches, reference may be made to those described in patents WO2018/002707 or WO2018/002723.

Collimation optics (Fresnel lenses, prism films, cross prism films, films with 2D patterned networks) can be used on the front face of the chosen electronically controlled light source (LED, OLED, TFEL, QLED, etc.) , and preferably, there are no other plastic strips or laminated interlayers between the collimating optics and the contact glass face.

For the rear window, the assembly consisting of the light source and collimating optics can form a (third) brake light or turn indicator (repeater), a position light or a position light.

For example (for a rear window or windshield), the light source is preferably illuminated in (itself) red, in particular a light-emitting strip, which is preferably rectangular and peripheral and horizontal; for example (for a rear window or windshield) The glass) light source preferably emits in (itself) yellow, especially the light strip, which is preferably rectangular and peripheral and horizontal, especially at the lower or lateral border of the window.

Preferably, with regard to the light emitting system, the following preferred cumulative characteristics are preferred:

- the light-emitting system is an organic electroluminescent diode called OLED, in particular a transparent organic electroluminescent diode (TOLED) or a quantum dot light emitting diode called QLED;

- Lighting systems, in particular OLEDs or QLEDs, are transparent and have a light transmittance of at least 20% or even at least 50%.

The light-emitting system is a backside-emitting OLED, comprising a support (transparent or opaque or with an opaque layer), which on the front side, starting from the support, carries: optional functional lower layer, transparent anode, organic electroluminescent system or reflective cathode.

The OLED can also include an encapsulation layer covering the components (active areas): resin, eg a transparent resin, or a plastic film coated with an adhesive, this plastic film with conductive areas can be used for electrical connections.

The light emitting system can be masked from the outside by a masking layer (enamel etc.) on the face F1 or F2.

Laminated interlayers are formed, for example, from one or more sheets. A conventional PVB such as Solutia or Eastman's RC41 can be chosen.

Laminated interlayers may include at least one "intermediate" layer made of viscoelastic plastic with vibro-acoustic damping properties, in particular based on polyvinyl butyral (PVB) and plasticizers, and interlayers, and also composed of Two outer layers made of standard PVB with a middle layer between the two outer layers. As an example of an acoustic sheet, mention may be made of patent EP0844075. Mention may be made of acoustic PVBs described in patent applications WO2012/025685, WO2013/175101, in particular coloured acoustic PVBs as described in WO2015079159.

The laminated interlayer may comprise acoustic PVB and/or tinted PVB, in particular PVB tinted at least partially through its thickness. The colored part is at least (or even at most) between the light-emitting element (OLED, QLED, etc.) and the face F2.

The glass, preferably the interior glass in laminated glazing, is in particular thin and less than 1.1 mm thick, preferably chemically toughened. It is preferably translucent. Examples of patent applications WO2015/031594 and WO2015066201 may be mentioned.

In order to limit heating in the passenger compartment or limit the use of air conditioning, at least the first glass pane or one of said glass panes (preferably the outer glass pane) is tinted. Furthermore, the glazing, in particular laminated glazing, may also comprise a layer reflecting or absorbing solar radiation, preferably on face F4 or face F2 or F3, in particular a layer of transparent conductive oxide, referred to as a TCO layer, or even at least one A thin layer stack of TCO layers, or a thin layer stack comprising at least one silver layer (preferably for laminated glazing on F2 or F3), the or each silver layer being interposed between the dielectric layers.

It is possible to have both a (silver-containing) layer on faces F2 and/or F3 and a TCO layer on face F4.

The (transparent conductive oxide) TCO layer is preferably a fluorine-doped tin oxide (SnO ₂ :F) layer or a mixed indium tin oxide (ITO) layer.

For example, the low emissivity layer includes the following sequence: high refractive index lower layer/low refractive index lower layer/TCO layer/optional dielectric upper layer.

As low emissivity layers, mention may be made of those described in patent US2015/0146286, on face F4, in particular in examples 1 to 3.

The invention of course relates to any motor vehicle, in particular a motor vehicle comprising at least one window pane as described above.

The diodes can be of the "chip-on-board" type or even very preferably a surface mount device (SMD in English), which then includes a peripheral package (often named "packaging").

As diodes, mention may be made of the Oslon Black Flat series sold by Osram. For red light, mention may be made of the diode sold by Osram: Oslon Black Flat Lx H9PP. For orange (amber) lamps, mention may be made of the diode sold by Osram: LCYH9PP. For white light, mention may be made of the diodes sold by Osram: LUW H9QP or KWHxL531.TE, where x= is the number of chips in the diode (eg, 4 or 5).

As flexible PCBs, mention may be made of the Akaflex® series (in particular PCL FW) from the company Krempel.

The present invention will now be described in more detail with reference to the accompanying drawings, in which:

FIG. 1 is a front view of a laminated windshield of a motor vehicle on the road, which in a first embodiment includes an internal light-emitting signal by means of diodes and OLEDs;

Figure 1bis is a front view of a laminated windshield of a motor vehicle on the road, which in a variant of the first embodiment includes an internal light-emitting signal by means of diodes and OLEDs;

FIG. 1 ′ is a front view of a laminated windshield of a motor vehicle on the road, which in a variant of the first embodiment includes an internal light-emitting signal by means of diodes and OLEDs;

Figure 1" is a schematic front view of a laminated rear window with an external luminescent signal in one embodiment of the present invention;

Figure 2 is a schematic cross-sectional view of a laminated glazing with an internal luminescent signal in one embodiment of the present invention;

Fig. 2' is a schematic cross-sectional view of a light-emitting laminated glazing with diodes in a variant of the embodiment of Fig. 2 with collimating optics for interior display; Fig. 2a is a top view of the collimating optics; Fig. 2b is the overall view of the collimating optics;

Figure 2bis is a schematic cross-sectional view of a light-emitting laminated glazing with diodes in a variant of the embodiment of Figure 2;

Figure 2'' shows a surface mount diode mounted on a diode support;

Figure 3 is a schematic cross-sectional view of a laminated glazing comprising (opto)electronic elements in one embodiment of the present invention;

Figure 4 is a perspective view of a laminated glazing containing diodes with diode supports;

FIG. 5 is a front view showing the pre-assembly of the electronic control device using a laminated interlayer and contact by point bonding;

FIG. 6 is a front view showing the pre-assembly of the electronic control device using a laminated interlayer and contact by point bonding;

Figure 7 is a front view showing pre-assembly and point-bonded contact of an electrical control device with plastic strips;

Figure 7a is a front view showing pre-assembly and point-bonded contact of an electrical control device with plastic strips;

Figure 7b is a front view showing pre-assembly and point-bonded contact of an electrical control device with plastic strips;

FIG. 8 is a cross-sectional view of the electronic control device and the pre-assembly of the back plastic strip and interlayer before being placed between the glass sheet and the laminate;

Figure 8' is a cross-sectional view of the device and the pre-assembly of the back plastic strip and laminate interlayer prior to being placed between the glass sheet and the laminate;

Figure 9a shows a front view on the F1 side of a laminated glazing with electrical control means, such as surface means, such as OLEDs (optionally forming pictograms) or OLED screens for lighting functions; Figure 9b shows a cross-sectional view of such a glazing;

Figure 9c shows a front view on the F1 side of a laminated glazing with electrical control means, such as surface means, such as OLEDs (optionally forming pictograms) or OLED screens for lighting functions; Figure 9d shows a cross-sectional view of this glass;

Figure 10 is a cross-sectional view of a pre-assembly of the electronic control device and plastic strip and interlayer prior to being placed between a glass sheet and a laminate to form the glazing of Figure 9d;

Figure 10' is a cross-sectional view of the electrical control device of Figure 9d, a pre-assembly of plastic strips and interlayers prior to being placed between the glass sheet and the laminate.

The elements are not drawn to scale, the figures are schematic representations.

Figure 1 shows (viewed from inside the vehicle) a windshield 1000 of a motor vehicle driving on a three-lane road with a vehicle ahead.

A windshield is a laminated window glass with an internal luminous signal that contains:

- a first set of six diodes 4 on the front face 30 of a first printed circuit board (called board PCB 3 ), which is bonded between the outer glass sheet and the inner glass 1 ′ of the laminated glazing, the The diodes are positioned in a row in the clear glass area in the windshield edge region along the lower longitudinal edge, optionally in or near the peripheral masked area (opaque enamel etc.) of the outer glass sheet (mask not shown). out) or even as a variant, in alternating areas with masked areas (opaque layer, eg opaque enamel) and transparent areas (facing the diodes) of the outer and/or inner glass pane;

- a second group of six diodes 4 on the front face 30 of a second printed circuit board (called board PCB 3), which is bonded between the outer and inner glass sheets 1' of the laminated glazing, the The diodes are positioned in a row in the clear glass area in the windshield edge area along the (left) side edge (particularly on the driver's side), optionally in the peripheral masked area of the outer glass pane (opaque enamel, etc.) or even, in a variant, in alternating areas with masking areas (opaque layers, such as opaque enamel) and transparent areas (facing the diodes) of the outer and/or inner glass sheet;

- a third group of six diodes 4 on the front face 30 of a third printed circuit board (called PCB 3), which is bonded between the outer glass sheet and the inner glass 1' of the laminated glazing, the diodes Positioned in a row in the clear glass area in the windshield edge area along the (right) side edge (particularly the passenger side), optionally in the peripheral masking area of the outer glass panel (opaque enamel etc.) In or near or even in alternating areas of the outer and/or inner glass sheet with masking areas (opaque layer, eg opaque enamel) and transparent areas (facing the diodes).

These diodes, particularly the diodes of the first component, can emit red light, which warns the driver when the vehicle ahead (or any other moving device or animal) is detected to be too close. When the car in front is far enough away (to comply with a safe distance), the diode turns off.

These diodes, particularly the diodes of the second component, can emit red light that warns the driver when the car (or any other mobile device or animal) detects too close on the left side of the car. , the signal light can also change from one color (when the vehicle is at a more dangerous distance), such as orange or amber, to another color (when the vehicle is at a shorter and even more dangerous distance) such as red.

In these cases, as many diodes are provided as needed, for example with alternating rows of red and orange diodes, or one row for each color. It is also possible to have at least three signal levels (three colors).

The vehicle includes at least one sensor (preferably one per group of diodes) to detect these hazardous situations (not complying with safe distances or otherwise) and at least one control unit for managing the diodes.

The diodes are not necessarily in a row, in particular parallel to the edge of the window pane. The PCB 3 with the diodes 4 is for example in the lower quadrant of the driver's side.

If necessary, the windshield includes a set of barely visible wires, eg 50 μm wires, placed on a face, eg the face F3 side of the laminated interlayer (over its entire area), in an optional straight line form.

The PCBs 3 are preferably transparent since they are here in the transparent glass area.

Each board PCB 3 is glued with a thin and transparent (backside) thermoplastic strip, the thickness e3 of the strip is at most 0.15mm and preferably less than 100μm and the same size as the PCB, the strip is glued on the backside of the board The face side (towards face F2) and its entire surface is in adhesive contact with face F2 (referred to as the contact face).

Before lamination, each board PCB 3 and a so-called "back" transparent thermoplastic strip form a pre-assembled element. The preparation of the pre-assembled elements will be described in more detail below.

The windshield also includes two other surface-type electronic controls, here in the shape of a rectangle 4', 4", such as OLED screens, for example in the middle of the windshield and along the lower and upper longitudinal edges. These screens are, for example, Transparent and in the clear glass area.

A thin transparent thermoplastic strip, called the back strip, having a thickness e'3 of at most 0.15 mm and better at most 100 μm and the same dimensions as the OLED, is adhered to the surface of the support of the OLED (the substrate is preferably is flexible, in particular polyester, PET), and its entire surface is in adhesive contact with the face F2 called the contact face. Before lamination, the OLED screen and the back transparent thermoplastic strip form a pre-assembled element. The preparation of the pre-assembled elements will be described in more detail below.

Before lamination, each device 4, 4" and the back transparent thermoplastic strip form a pre-assembled element. The preparation of the pre-assembled elements will be described in more detail below.

It is also possible to provide illuminated or non-illuminated touch buttons in the laminated glazing to control OLED screens or other devices and the like. The capacitive switch can be pre-assembled, for example, with plastic strips as previously described.

Alternatively, a light-emitting laminate roof with diodes and/or OLEDs, QLEDS or TFEL can be produced in a similar manner, for example to provide ambient light, decorative light or reading light directed towards face F4.

On the front face, collimating optics can be used, preferably without a front plastic strip or lamination interlayer between the collimating optics and the glass interface.

FIG. 1bis shows another windshield of a motor vehicle, which windshield 1000 includes a light signal in a variant of the first embodiment.

It differs from the windshield in Figure 1 in the location of the more peripheral three boards PCB 3, which may be opaque (opaque supports and/or opaque conductive tracks). Face 12 F2 includes the entire mask frame, preferably made of black enamel, and face F4 14 (or face 13 F3 ) includes mask frame 72, preferably made of black enamel, with holes 70 aligned with diodes 4 .

In this embodiment, the front or back thermoplastic assembly strip 5 may be transparent (pigmented, etc.) or opaque. The strip 5 is in adhesive contact with the mask layer 71 .

Furthermore, the OLED screen 4' at the bottom of the windshield is located in the enamel area and the holes 70 are aligned with the screen 4'.

Figure 1' is a front view of a windshield of a motor vehicle on the road, in a variant of the first embodiment, the windshield 1000' has an internal or even an external luminous signal by means of diodes.

It differs from Figure 1 in the location and type of signal.

The first set of diodes 4c on the board PCB 30C type support form a triangle, if possible, a central exclamation mark. So it creates a red flag.

The second and third sets of diodes 4a and 4b, each on their PCB board type supports 30a and 30b, are formed on (left or right, respectively) the arrows indicated when the turn indicators are activated.

These turn indicator repeaters are visible from the outside (external signal). The left turn indicator can be moved as far to the left as possible (if the hole is aligned with the diode in the masked area on face F2) or split in two and the right turn indicator as far to the right as possible (if on face F2). In the masked area on F2, the hole is aligned with the diode) or split it in two.

Each board PCB 30a, 30b and 30c is glued with a thin thermoplastic tape with a thickness e3 of at most 0.15mm and the same size as the PCB board, the tape glued on the back face side of the board (towards face F2) , and its entire surface is in adhesive contact with the surface F2, which is called the contact surface.

Prior to lamination, each board PCB 30a, 30b and 30c and thermoplastic strips form pre-assembled components.

If in the clear glass area, board PCBs 30a, 30b and 30c and thin and transparent thermoplastic strips are preferred. It is conceivable to move them to the peripheral masking frame in a similar manner to Fig. 1bis.

In addition, the OLED screen 4" at the central upper peripheral position on the windshield is located in the enamel area 72, which widens at the center, and the hole 70 is aligned with the screen.

FIG. 1 ″ is a schematic front view (face F1 or face 12 side) of a rear window with an external lighting signal 100 ″ in one embodiment of the present invention.

In the central area 13', a third brake light 101 is formed using, for example, six red diodes 4 on the PCB 3 along the top longitudinal edge.

In each side area 14', along the lateral edge in question, a turn indicator 102 is formed using, for example, six diodes 4 emitting in yellow on the PCB 3, or along the lower longitudinal edge in question Signal lights 103 are formed, for example, by six diodes 4 on the board PCB 3 .

Each PCB board is glued with a thin thermoplastic strip, strip thickness e3 of at most 0.15mm and the same size as the PCB, glued on the back face side of the board (towards face F3) and its entire surface to face F3 (called the contact surface) is the adhesive contact.

Before lamination, each board PCB 3 and thermoplastic strips form pre-assembled components.

Thin and transparent PCB 3 and thermoplastic tape are preferred if in the clear glass area. It is conceivable to move them to the peripheral masking frame in a similar manner to Fig. 1bis.

The rear window also includes another surface electrical control, here in the shape of a rectangle 4', such as an OLED, eg in the middle of the windshield and along the lower longitudinal edge. OLEDs are, for example, transparent and in the area of transparent glass.

A thin transparent thermoplastic "back" strip, the thickness e'3 of which is at most 0.15 mm and better at most 100 μm and the same size as the OLED, is glued to the OLED support (the substrate is preferably flexible, in particular On the surface of the polyester, PET), and its entire surface is in adhesive contact with the face F2 (called the contact face). Before lamination, the OLED and back transparent thermoplastic strips form pre-assembled elements. Before lamination, the device 4 and the back transparent thermoplastic strip form a pre-assembled element.

Alternatively, laminated glazings can be produced in a similar manner, which form (fixed or open) side glazings with externally luminous signals, such as turn indicator repeaters, or, for example, advertising, information or decorative displays.

Figure 2 is a schematic cross-sectional view of a windshield with an internal luminous signal 100 in a first embodiment of the present invention, including a curved laminated glazing comprising:

- a first pane of glass 1, eg made of TSA glass and having a thickness of 2.1 mm, forming an outer pane of glass, preferably coloured, having first and second main faces 11, 12 called faces F1 and F2 respectively and edge face 10;

- a preferably transparent laminated interlayer 2, made of a polymer material, here PVB, with a thickness e1 of sub-millimeters, and preferably in particular between 0.2 mm and 1 m, usually about 0.38 mm, for example a thickness of about PVB panels of 0.76mm (RC41 from Solutia or Eastman), or as a variant, if necessary (three or four layers) acoustic PVB, for example about 0.81mm thick, optionally with a set of face FB on the side of face F3 a metal wire covering (substantially) a surface, in particular facing the one or more diodes;

- a second pane of glass 1', which forms an inner pane of glass, for example made of TSA, or a transparent or extra-transparent glass, having a thickness of 2.1 mm or even 1.6 mm or even less, with facets F3 and facet respectively third and fourth main faces 13, 14 of F4, face F4 optionally coated with a functional layer (low emissivity layer, etc.),

Faces F2 and F3 are the inner faces 12, 13 of the laminated glazing;

- a group of inorganic electroluminescent diodes 4, which are surface mount devices (CMS or SMD) emitting in red, for example on a support such as a printed circuit board called "board PCB 3" with an edge face 34, PCB+ The diode assembly has a total thickness et2≤e1 and better, e1-et2 is at most 0.5mm, preferably 0.1mm-0.2mm, the diode has a sub-millimeter thickness e2 typically greater than 0.15mm, the thickness of the board PCB 3 is e'2 Up to 0.15mm, eg 50 to 100μm, with a front face 30 facing face F3 and a back face 30' facing F2 or face 12, each diode has an emitting face emitting in the direction facing the inner glass 1', each diode has edge face.

For each diode, the laminated interlayer has a region 21 comprising openings (here vias) surrounding and in contact with the edge faces of the diodes. Prior to lamination, vias were made in a single PVB sheet with a slightly larger width on the sides of the diodes 4 . By creeping during lamination, the PVB can come into contact with the diode 4 without entering between the front face and the face F3.

As a variant, use PVB with blind holes, or even keep this sheet with through holes and add a back sheet (between F3 and an apertured sheet called the front sheet) over the entire surface (for inserting other Thicker elements for other functions etc.) PVB or even PVB/functional PET/PVB. After lamination, the diode is now in a blind hole, and the front side is preferably in contact with the bottom of the hole or spaced from the hole by at most 0.2 mm or at most 0.1 mm.

The diode 4 (here with a single semiconductor chip) is square and has a width of about 5 mm or less. The diodes may be of the "chip-on-board" type or even very preferably a surface mount device (SMD), in which case a peripheral package (commonly named "packaging") is included.

Here, in the transparent glass area, a flexible PCB 3 will be chosen that is as thin as possible and even preferably the most inconspicuous (minimum width or even transparent) possible (minimum width or even transparent), for example comprising transparent films such as PET, PEN or polyimide films, and, Even for printed circuits, it is possible to choose transparent connection tracks (rather than tracks made of copper unless they are made thin enough). The PCB board can protrude from the edge face of the laminated window pane.

The laminated interlayer 2 exists between the face F3 and the front side of the PCB 3 (on the entire front side of the PCB except for the diodes), in the laminated glazing. Laminate interlayer 22 is absent from back face 30'.

Before lamination, the board PCB 3 is glued to a thin thermoplastic strip 5 having a thickness e3 of at most 0.15 mm, in particular 25 to 100 μm, 40 to 70 μm, even at most 50 μm, and of the same dimensions as the PCB board The same or slightly protruding from edge face 34 (as shown), its front face 50 is bonded to the board's back face 30' (toward face F3) and its back face 50' over its entire surface with face F2 12 (referred to as face F2 12). contact surface) adhesive contact.

Before lamination, each board PCB 3 and thermoplastic strip 5 form a pre-assembled element.

The thermoplastic tape is based on poly(vinyl butyral) (PVB), which contains less than 15% by weight, preferably less than 10% by weight, even better less than 5% by weight of plasticizers, in particular free of plasticizers plasticizer. The laminated interlayer is made of conventional poly(vinyl butyral) (PVB).

In particular, the product "MOWITAL LP BF" of the company KURARAY with a thickness of e3 can be selected as the plasticizer-free PVB tape as required.

As shown in FIG. 2, each diode is an electronic component that includes at least one semiconductor chip 41 and is equipped with a polymer or ceramic peripheral encapsulation 42 (commonly named) that encapsulates the edge face of the electronic component (and defines the edge face of the diode). "packaging"), the package surrounds the semiconductor chip.

The encapsulation can correspond to the maximum thickness (height) e2 of the diode. The encapsulation case is made of epoxy resin, for example. During lamination, the polymeric encapsulation shell may optionally shrink (the final thickness after lamination may be less than the initial thickness). The (polymer) encapsulation can be opaque.

The package (either in one piece or made of two parts) may include a part that forms the base 42 that carries the chip and a part that forms a reflector that moves away from the base (higher than the chip) The openings are enlarged and contain protective resins and/or materials with color conversion functions. Front face 40 may be defined as the surface of the material that covers the chip (recessed from or flush with the "front" surface of the reflector).

Diodes can include protective resins or materials with color-converting capabilities, even right above the semiconductor chip. The semiconductor chip may be embedded in a material (resin, etc.).

FIG. 2 ′ is a schematic cross-sectional view of a light-emitting laminated glazing using diodes in the embodiment variant of FIG. 2 , with the addition of collimating optics 8 , here a prismatic film 81 , on the output face 80 side With its adjoining prisms and with a back face 80 ′ on the front face side of the diode 4 , the diode is accommodated in the hole 21 of the PVB, the membrane is held by lugs 82 on the front face of the support PCB 3 . Figure 2a is a top view of the collimating optics. It is here a prismatic film with adjoining prisms 80 and edge faces 85 . FIG. 2b is an overall view of a prismatic film with adjoining prisms 80. FIG.

Examples of collimating optics, such as Fresnel lenses or prismatic films, are described in application WO2017203171 (eg Figure 3a and Figures 2'a to 2'c). Examples of collimating optics, such as two intersecting prism films or two-dimensional arrays, are described in application WO2017/203175 (eg Figures 2'a to 2'c and Figures 1'a to 1'z).

FIG. 2bis is a schematic cross-sectional view of a light-emitting laminated glazing 200a using diodes in a variation of the embodiment of FIG. 2 .

It differs in that the plastic strip 5 is on the masking enamel 72 on the face F2 12 and the holes 72 ′ aligned with the diodes are created in the masking enamel 72 on the face F4 14 .

For example, the front face is bonded to PVB by adhesive dots 6' prior to lamination.

The invention has been described in conjunction with diodes, but the invention is applicable to other discrete electronically controlled devices such as sensors (photodiodes, cameras, etc.).

Figure 3 is a schematic cross-sectional cross-sectional view of a laminated glazing 300 comprising an (opto)electronic element as a sensor in one embodiment of the invention.

Here, the support 3 is glued to the contact surface 13, which is the face F3, by means of a thermoplastic strip such as thin and transparent PVB (as already described in the previous figures).

In particular, the support extends beyond the PVB via portion 51 after the edge face and is folded by portion 52 at face F4 14 and the strip 5 is glued to the edge face and face F4. A connector 53 is connected to the end of the portion 52 .

FIG. 4 is a schematic cross-sectional view of a light emitting laminated glazing 400 using diodes in a variation of the embodiment of FIG. 2 .

It differs in that the support body 3 is L-shaped, with a diode area 31 and a power supply area 32 with an extension 33 protruding from the edge face 10' of the window pane 1', the extension 33 being connected to the The wires 9 , 9 ′ are also partially covered by the enamel 7 . The back plastic strip 5 (shown for illustration purposes) has the same shape and is therefore L-shaped. For example, the PVB is retracted from the edge face 10'.

FIG. 5 is a front view showing the pre-assembly of the electronic control device 500 using a laminated interlayer and contact by point bonding.

Figure 5 shows the point-like adhesive contact of the front face 50 of the preferably transparent square or rectangular partially thin backed plastic strip 5 with the connection face 20' of the back sheet PVB 2 (intended to be in contact with the window glass ( The shown contact surface 12 F2 or the adhesive surface F3 of the edge surface 10) is in adhesive contact.

The support body 3 of the diode 4 is rectangular and protrudes from the edge face 10 . The front face of the plastic strip 5 abuts the back face of the diode support and the plastic strip protrudes from the edge face 34 .

Point-like adhesive contact is achieved by an array of point contacts 60 on either side of the diode region 31 between the PVB and the protruding strip 5 . For this purpose, PVB and/or plastic strips are softened by localized point heating or using solvents such as alcohols.

FIG. 6 is a front view showing the pre-assembly of the electronic control device 600 using a laminated interlayer and contact by point bonding.

The pre-assembly differs from FIG. 5 in that the support 3 is L-shaped, exactly like the preferably thin and transparent back plastic strip 5 .

FIG. 7 is a front view showing the pre-assembly of the electronic control device 700 using plastic strips and contact by point bonding.

This pre-assembly differs from FIG. 6 in that the strip 5 does not protrude from the edge face 34 .

Punctuation is achieved by a series of contact points 60 on either side of the diode region 31 on the opposite side of the diode region 31 between the backside 30' of the PCB 3 and the strip 5 and on the side opposite the power supply region Adhesive contact. To achieve this, the plastic strip 5 is softened by point local heating.

Figure 7a is a front view showing the pre-assembly of the electronic control device 700a using plastic strips 5 and contacted by point bonding. This pre-assembly differs from FIG. 7 in that the support is T-shaped and the local thin plastic strip 5 has the same T-shape.

Figure 7b is a front view showing the pre-assembly of the electronic control device 700b using plastic strips and contacted by point bonding.

This pre-assembly differs from FIG. 7 in that the support is U-shaped, thus having two extensions from the panes 33, 33', and the partially thin plastic strip 5 has the same U-shape.

FIG. 8 is a cross-sectional view of a pre-assembly 800 of device, partial back plastic tape, and laminated interlayer prior to being placed between the glass sheet and the laminate.

The front face 50 of the thin and transparent back plastic strip 5 is brought into point adhesive contact with the back face 30 ′ of the support for the diodes 3 through a series of contact points 6 created by the local heating 7 .

The front face 30 ′ of the support for the diodes is in point adhesive contact with the face 20 ′ of the PVB 2 with the individual through holes 21 that accommodate the diodes 4 .

As a variant, it is a blind via, the PVB can even be a PCB/PET/PVB assembly.

Figure 8' is a cross-sectional view of the pre-assembled 800 800' of the electrical control device, back plastic strip and laminate interlayer prior to being placed between the glass sheet and the laminate.

The front face 50 of the thin and transparent back plastic strip 5 is brought into point adhesive contact with the face 20' of the PVB 2 (referred to as the bond face) through a series of contact points 60a created by localized heating.

The front face 50 of the thin and transparent back plastic strip 5 is brought into point adhesive contact with the back face 30 ′ of the support body 3 for the diodes, optionally through a series of contact points 6 created by local heating.

Optionally, the front face 30 of the support for the diodes is in point adhesive contact with the face 20' of the PVB 2 provided with individual housing diodes through a series of contact points 6' created by local heating 4 through holes.

Figure 9a shows a front view of the F1 side of a laminated glazing with electrical controls 900, eg surface electrical controls, eg for light functions (optionally forming pictograms) or OLED screens OLED. Figure 9b shows a section of such a glazing.

It is, for example, a windshield with OLED in the shape of a pictogram, or an OLED screen 4 or a roof with OLED. This can be the windowpane of a building.

Luminous laminated glazing is curved and includes:

- a first pane of glass 1, eg made of TSA glass and having a thickness of 2.1 mm, forming an outer pane of glass, preferably coloured, having first and second main faces 11, 12 called faces F1 and F2 respectively and edge face 1, face F2 is optionally coated with a functional layer (mask layer, etc.);

- a second pane of glass 1' forming the inner pane, for example made of TSA (or clear or extra-transparent) glass and having a thickness of 2.1 mm or even 1.6 mm or even less, with the so-called faces F3 and F4 respectively The third and fourth main faces 13, 14, face F4 is optionally coated with a functional layer (low emissivity layer, etc.) and/or face F3, which is optionally coated with a functional layer (mask layer, heating layer, low emissivity layer, etc.);

- Between F2 and F3, a laminated interlayer 2 made of polymer material, here made of PVB, preferably transparent, with a thickness e1 of sub-millimeter, preferably in particular between 0.2 mm and 1 m , typically about 0.38 mm, for example formed from a solid first sheet 2a and a second apertured PVB sheet 2b on the first sheet provided with grooves 25, and the first sheet 2a after lamination is Face 13 F3 is in adhesive contact, and after lamination, the second apertured PVB sheet 2b is in adhesive contact with face 123 F2 and with the first sheet;

Faces F2 and F3 are the inner faces 12, 13 of the laminated glazing;

the OLED 4 comprises the support 3 and the light-emitting system on the front side accommodated in the groove 25, the thickness e2+e'2 of which is smaller than the thickness of the perforated plate 2b;

- a thermoplastic tape, in particular PVB without plasticizers, having a thickness e3 of at most 0.3 mm and the same size as the OLED, the tape being glued to the OLED (on the support side or on the front face of the lighting system) , the entire surface of the back face of the strip is in adhesive contact with face F212.

The thermoplastic tape is based on poly(vinyl butyral) (PVB), which contains less than 15% by weight, preferably less than 10% by weight, even better less than 5% by weight of plasticizers, in particular free of plasticizers plasticizer. In particular, the product "MOWITAL LP BF" from the company KURARAY with a thickness of e3 can be selected for plasticizer-free PVB tapes.

The laminated interlayer is made of conventional poly(vinyl butyral) (PVB). It can be acoustic, wedge-shaped (for heads-up displays), PVB/functional PET/PVB composites. The entire sheet can especially be acoustic, wedge-shaped (for heads-up displays), PVB/functional PET/PVB composite. Apertured sheets can especially be colored. As a variant, a single PVB with blind vias is used.

Before lamination (and before being placed between two glass sheets), the plastic strip 5 is assembled with the OLED 4 by localized heating, resulting in point-bonded contact, or by bonding (adhesive or double-sided) adhesive tape), and optionally, the OLED 4 is assembled with the entire sheet 2a, eg by localized heating.

Here, the OLED 4 emits in the direction of the face F4 (internal light) and the OLED emits through the support of the OLED 3 (bottom-emitting). The plastic strip 5 is now on the front face of the OLED, on the light emitting system (with or without polymer encapsulation).

Here, the OLED 4 emits in the direction of the face F4 (internal light), and the OLED is top-emitting ("topemitting" in English). The plastic strip is now on the back face of the support 3, thus opposite the light emitting system (with or without the polymer encapsulation).

Figure 9c shows a front view of the F1 side of a laminated glazing with electronically controlled means, eg surface means, such as OLEDs or active matrix OLEDs for light functions (optionally forming pictograms) screen (AMOLED). Figure 9d shows a section of such a glazing.

The window glass 900' differs from the window glass of Fig. 9 in that:

- light emission on the side of the face F1 11, e.g. for luminous signals for rear windows, side windows or even windshields (turn indicator repeater, etc.);

And the OLED 4 is exposed from the apertured plate 2b on the F2 12 side.

Therefore, to compensate for the difference in thickness H between the PVB 2b and the OLED on the F2 side, a PVB frame 5a made of plastic material identical to the plastic strip 5 surrounds the periphery of the OLED.

If H is large (eg at least 0.15mm), multiple stepped plastic framing strips can be used.

As a variant, if H<0.15 mm, the plastic strip 5 is chosen to protrude above the PVB and pre-assembled together with the PVB 2b, eg by local heating.

As a variant, a single PVB with blind vias is used.

The laminated interlayer is made of conventional poly(vinyl butyral) (PVB). It can be acoustic, wedge-shaped (for HUD), PVB/functional PET/PVB composite. The entire sheet can especially be pigmented, acoustic, wedge-shaped (for heads-up displays), PVB/functional PET/PVB composite. Apertured sheets can especially be colored.

Figure 10 is a cross-sectional view of a pre-assembly 900 of an electrical control device, plastic strip and laminated interlayer prior to placement between a glass sheet and a laminate to form, for example, the glazing 900 of Figure 9d.

The front face 50 of the thin and transparent plastic strip 5 is in point adhesive contact with the back face 30' of the support of the diode 3 through a series of contact points 60 created by local heating 7 (thereby causing softening) and adhesion.

The front face 30 of the OLED is optionally in point adhesive contact with the face 20 of the solid PVB sheet 2a through a series of contact points 60b created by the same localized heating 7 .

The front face 50a of the plastic frame 5a (similar to the material of the plastic strip 5 ) is in adhesive contact with the face of the solid PVB panel 2a through a series of contact points 60a created by the localized heating 7 .

Next, the pre-assembled element is placed between two glass sheets, the free faces of the two sheets 2a and 2b are in adhesive contact with faces F2 and F3 after lamination, and the free faces of the plastic strips 5,5a The faces are in adhesive contact with one of faces F2 or F3 (bare or coated) as desired after lamination.

Figure 10' is a cross-sectional view of a pre-assembly 900' of electrical controls, plastic strips and laminated interlayer prior to being placed between a glass sheet and a laminate (to form, for example, a variation of the glazing 900 of Figure 9d) .

Two plastic strips are pre-assembled, one, called back strip 5, is on one side of the back face of the support and the other, called front strip 5', is on one side of the front face of the device 4 (OLED, etc.) And protrudes above the (PVB, composite PVB) laminated interlayer sheet, which is provided with slots to accommodate the electronic control system 4 .

The front face of the back plastic strip 5 is optionally brought into point adhesive contact with the back face 30' of the diode support 3 by creating a series of point contacts 60b by localized heating 7 (causing softening) and adhesion.

The front face of the back plastic strip 5 is in point adhesive contact with the face 20 of the PVB 2b through a series of point adhesive contacts 60a created by localized heating 7 (which causes softening) and adhesion.

The front face 50' of the front plastic strip 5' is brought into point adhesive contact with the other side 20' of the PVB 2b through a series of point adhesive contacts 60" caused by localized heating 7 (causing softening) and sticking. The same heating on the face 20 side can be satisfied on the face 20' side.

Next, the pre-assembled element is placed between the two glass sheets, after lamination, the faces 20' and 20' are in adhesive contact with the faces F2 and F3, and also for the free faces of the plastic strips 5,5' in this way.

Claims (21)

1. A method for making a glazing with an electrical control device, in particular a glazing for a vehicle (100 to 900'), comprising a laminated glazing comprising:

-a first transparent glass plate (1) having first and second main faces (11,12) called face F1 and face F2;

-a second transparent glass plate (1') having a third and a fourth main face (13,14), respectively called face F3 and face F4(13, 14);

-a laminated interlayer (2,2a,2b) made of thermoplastic polymer material, preferably a major part of the floor surface F2 and a major part of the face F3, are in adhesive contact with the laminated interlayer,

preferably, at least one of the first and second glass plates is made of an inorganic glass;

and the laminated glazing comprises between the faces F2 and F3:

-an electric control device (4,4',4") comprising a support (3) having a width W2 preferably of at most 1m and a thickness e2, in particular sub-millimeter, the support having a front face (30), a back face (30') and an edge face (34), having a thickness e2, the front face carrying the electric control system in a region called the functional zone (31), the thickness e '2 of the electric control system being preferably sub-millimeter, and the front face optionally comprising a supply zone (32,33) adjacent to the functional zone, the electric control device being located on a surface below the lamination interlayer, the electric control device having a front face on the side of the electric control system,

and the glazing comprises:

-on the back face (30'), a polymeric connecting element (5), having a thickness e3 of at most 0.3mm, in adhesive contact with the back face and with one of the faces F2 or F3, this one of the faces F2 or F3 being then called the contact face, which may be bare or coated with a layer (71), the connecting element being located on the surface below the laminated interlayer;

the method comprises the following steps:

-providing, before lamination, a pre-assembly element of sheets comprising the electric control means, said connection element and optionally at least one lamination interlayer, called assembly sheet,

the connecting element comprises a plastic strip, preferably a thermoplastic strip, having a so-called connecting face F facing the back face of the support_LAnd the plastic strip has a connecting surface F_LAn opposite free main face F';

the connecting surface F_LIn adhesive contact or bonding with the back side;

and/or the joint face F_LProjecting from the edge face of the support body on at least one side, defining a projecting zone ZD facing a zone ZA of one of the main faces of the assembled sheet, the projecting zone ZD being in adhering contact or bonded with the zone ZA;

-placing said pre-assembled element between a first and a second glass plate; and

-a lamination step with said pre-assembled element, comprising placing under vacuum, or under pressure, and heating, said lamination step causing: let the free surface F_LIn adhesive contact with the contact surface, which is in particular bare or coated.

2. Method for making a glazing with an electric control device according to the preceding claim, characterized in that said plastic strip is transparent, said support is transparent, said pre-assembled element is in a transparent zone of the first and/or second glass pane at the location of the latter, said transparent strip covering at least the back face opposite said functional zone.

3. A method for making a glazing with an electrical control device according to any of the preceding claims, characterized in that the method comprises forming the pre-assembled element according to at least one of the following structures:

a) assembling the connecting element with the support body, wherein the connecting surface F is_LIn adhesive contact with or bonded to the back surface, so that the joint surface F_LA punctiform back surface (30') in adhesive contact over the entire surface or punctiform surface by a series of spaced-apart adhesive contact points, or punctiform adhesive contact over the entire surface or via a series of spaced-apart punctiform adhesive zones; and/or

b) The connecting element is assembled with the lamination interlayer such that the projecting zone ZD is in adhesive contact with the zone ZA either punctiform or over the whole surface by a series of spaced adhesive contact points or such that the connecting surface is bonded to the zone ZA via a series of punctiform adhesive zones or over the whole surface.

4. A method for making a glazing with an electrical control device according to claim 3 characterised in that the adhesive contact is achieved by softening of a plastic strip.

5. Method for making a glazing with an electric control device according to claim 4, characterised in that said making of the adhesive contact is spot-shaped and is carried out by local heating and optionally also by applying pressure, in particular by heating by induction, hot air or radiation (laser).

6. Method for making a glazing with an electric control device according to claim 5, characterised in that during said pre-assembly together with the connecting element (5), the electric control device is located on a first sheet of the laminated interlayer (2, 2a), and a second sheet of the laminated interlayer, in particular the assembled sheet, on which local heating causes a punctiform contact of the first sheet with the second sheet.

7. Method for making a glazing with an electric control device according to any of claims 5 and 6, characterised in that during said pre-assembly together with the connecting element (5) the front face of the electric control device is on a first sheet of a laminated interlayer, in particular an assembly sheet, the local heating (7) causing a point-like adhesive contact of the front face of the electric control device with said first sheet of the laminated interlayer.

8. The method for making a glazing with an electric control device according to any of the preceding claims characterized in that the plastic strip (5) and the laminated interlayer (2) are spaced apart before lamination and the plastic strip and the laminated interlayer are brought into continuous contact after lamination leaving no space between the back face and the contact face.

9. The process for the production of a glazing with an electrical control device according to any of the preceding claims characterized in that the plastic strip (5) is thermoplastic, based on poly (vinyl butyral) (PVB), containing less than 15% by weight, preferably less than 10% by weight, even better less than 5% by weight of plasticizer, in particular no plasticizer, and the lamination interlayer is preferably based on poly (vinyl butyral) (PVB), in particular containing more than 15% by weight of plasticizer.

10. Method for making a glazing with an electric control device according to any of the preceding claims 1 to 9, characterised in that before placing said pre-assembled element comprising the connecting element (5), the laminated interlayer comprises a "front" sheet, optionally said assembled sheet, the main face Fx (20') of which is against the front face of the electric control device, in particular the front face of the support, and the main face Fx (20') optionally comprises said zone ZA, and in that after lamination, the front sheet is brought into adhesive contact with the front face of the electric control device, in particular the front face of the support.

11. Method for making a glazing with an electric control device according to the preceding claim, characterised in that the main face Fx of the front sheet (20) comprises at least one blind or through hole (21) having a width W1 of at most 20mm, which accommodates a "discrete" electric control system, in particular an (opto) electronic component such as a photodiode or an inorganic diode, the width W '2 of the electric control system being at most 20mm, and in that e'2>0.15mm, e2<0.15mm and e3<0.15mm, the front sheet is brought into adhesive contact with the front face of the support, optionally the hole being a through hole.

12. Method for making a glazing with electric control device according to any of claims 1 to 11, characterised in that, before placing said pre-assembled element comprising said connecting element (5), said laminated interlayer comprises an apertured sheet, which therefore comprises a hole (25) housing all or part of the electric control system and the support, having a main face Fx that is free, and optionally comprising said zone ZA 'and optionally comprising a zone Z' a, facing the hole (25), in which the face Fx and the free face F of the plastic strip are present_LThe height difference between them is at most 0.3 mm.

13. Method for making a glazing with an electric control device according to the preceding claim, characterized in that the electrical control device is exposed from the apertured plate before lamination with the pre-assembled element containing the connecting element (5), the electrical control device being spaced from the main face Fx by a non-zero height H2 greater than e2, H2 being at most 0.3mm, the method comprises providing an additional plastic strip (5a) forming a frame on the edge face of the electric control device, a thickness Ex of at most 0.15mm and less than or equal to H2, and facing the area of the aperture plate, and the additional plastic strip has a main face F "opposite the connection face FC, the additional plastic strip optionally comprising a single strip or a plurality of stepped plastic strips, when Ex is the total thickness of the plastic strips, and bringing said further free face of the additional plastic strip into adhesive contact with the contact face by means of a lamination step.

14. A glazing with an electrical control device, in particular obtained according to any of the preceding claims, comprising a laminated glazing comprising:

-a first transparent glass plate (1) having first and second main faces (11,12) called face F1 and face F2;

-a second transparent glass plate (1') having a third and a fourth main face (13,14) respectively called face F3 and face F4;

-a laminated interlayer (2) made of a thermoplastic polymer material, preferably a major part of the floor surface F2 and a major part of the face F3, being in adhesive contact with the laminated interlayer,

preferably, at least one of the first and second glass plates is made of an inorganic glass;

and the laminated glazing comprises between the faces F2 and F3:

-an electric control device (4) comprising a support (3) having a width W2 of at most 1m and a thickness e2, in particular sub-millimetre, the support having a front face (30) carrying the electric control system (4) in an area called the functional zone (31), a back face (30') and an edge face (34), the thickness e'2 of the electric control system being preferably sub-millimetre, and the front face optionally comprising a supply zone (32,33) adjacent to the functional zone, the electric control device being located on a surface below the lamination interlayer,

-on the back face (30'), a polymeric connecting element (5), which is a plastic strip having a thickness e3 of at most 0.3mm, in adhesive contact with the back face and with one of the faces F2 or F3, this one of the faces F2 or F3 being then called the contact face, this connecting element being located on the surface below the laminated interlayer.

15. Glazing with electrical control device according to the preceding claim, in particular for vehicles, characterized in that the plastic strip (5) is thermoplastic, based on poly (vinyl butyral) (PVB), even made of it, containing less than 15% by weight, preferably less than 10% by weight, even better less than 10% by weight of plasticizer, in particular no plasticizer, and in that the lamination interlayer is based on poly (vinyl butyral) (PVB), in particular containing more than 15% by weight of plasticizer.

16. Glazing with electric control according to any of claims 14 and 15, in particular for vehicles, characterized in that said contact face (12) is bare or coated with said layer, said layer preferably having a thickness of at most 50 μ ι η, even sub-micron, in particular selected from a mask layer (71), a transparent layer, an electrically conductive layer, a heating layer, a low emissivity layer, a solar control layer, with which the adhesive contact is made, and/or the adhesive face (13) is bare or coated with said layer, said layer preferably having a thickness of at most 50 μ ι η or even sub-micron, in particular selected from a mask layer, a transparent layer, an electrically conductive layer, a heating layer, a low emissivity layer, a solar control layer, with which the adhesive contact is made.

17. Glazing with electrical control device according to any of claims 14 to 16, in particular for vehicles, characterized in that the plastic strip (5) protrudes from the back face on at least one side and even on both sides, in adhesive contact with the laminated interlayer.

18. A glazing having an electrical control device, in particular for a vehicle, as claimed in any one of claims 14 to 17, characterised in that the electrical control system is selected from:

-capacitive or inductive control switches, antennas;

-one or more (opto) electronic components, in particular discrete components, in particular sensors, cameras, photodiodes or inorganic electroluminescent diodes (4);

and is characterized in that:

-i) bringing the plastic strip and the lamination interlayer into adhesive contact with the front face of the support.

19. A glazing with an electric control device, in particular for a vehicle, as claimed in any one of claims 14 to 18, characterized in that said system is a surface system and is selected from:

surface light emitting systems, such as OLED organic electroluminescent systems, TFELs or quantum dot light emitting diodes known as QLEDs;

-a dynamic display system;

-a liquid crystal system, a light valve, an electrochromic system, in particular the laminated interlayer houses the device; and

i) the plastic strip extends from the support and is in adhesive contact with the laminate interlayer, preferably the front face of the support.

20. A glazing having an electrical control device, in particular for a vehicle, according to any of claims 14 to 19 wherein the laminated interlayer is made of poly (vinyl butyral) (PVB), in particular PVB having holes or grooves containing electrical control devices, which optionally:

-is acoustic, in particular for a vehicle windscreen or roof, and/or is wedge-shaped, in particular for a windscreen;

-optionally with a metal wire;

or to form a PVB/functional plastic film composite or a first PVB/functional plastic film/second PVB composite, the functional plastic film, preferably transparent, for example polyester or PET, bearing a functional layer, in particular an electrically conductive functional layer, in particular PVB with blind holes or blind grooves in the first PVB.

21. A vehicle comprising at least one glazing with an electric control device according to any of the preceding glazing claims, in particular a windscreen, a roof, a side window or a rear window.