DE202023100272U1 - compound pane - Google Patents

Abstract

Composite pane (100) at least comprising
- An outer pane (1) with an outside surface (I) and an inside surface (II)
- an inner pane (2) with an outside surface (III) and an inside surface (IV),
- a first thermoplastic intermediate layer (3)
- a second thermoplastic intermediate layer (4),
- a photovoltaic module (5),
- an opaque cover print (6),
wherein the composite pane (100) has an upper edge (O), a lower edge (U), two side edges (S) and a main viewing area (H),
the first thermoplastic intermediate layer (3) is colorless and is arranged in a first partial area between the outer pane (1) and the inner pane (2),
the second thermoplastic intermediate layer (4) is dark in color and is arranged between the outer pane (1) and the inner pane (2) in a second partial area, the photovoltaic module (5) between the second thermoplastic intermediate layer (4) and the outer pane (1) in the second partial area is arranged,
the opaque cover print (6) is arranged on the interior-side surface (II) of the outer pane (1) and has a first recess (7) and a second recess (8), the first partial area and the second being viewed through the laminated pane (100). Partial area does not overlap, the main see-through area (H) is arranged completely in the first partial area and completely in the first recess (7), and the second recess (8) is arranged completely in the second partial area.

Description

The present invention relates to a laminated pane.

HMIs (Human Machine Interfaces) i.e. man-machine interfaces and displays are essential and important topics and functionalities in the automotive sector. The size and the number of displays and display systems, in particular in the cockpit of motor vehicles, is constantly increasing. For example, the display and reproduction of navigation, safety and telecommunications information, as well as additional infotainment, is now an almost indispensable standard. Efforts are being made to replace the cluster displays, at least in part, with space-saving solutions that are as energy-efficient as possible, thereby also increasing design freedom.

In addition to the well-known cluster displays that are placed in the interior of motor vehicles, head-up displays (HUDs) are already being used to an increasing extent today. With a projector, typically in the area of the dashboard in vehicles, images are projected onto the windshield, where they are reflected and perceived by the driver as a virtual image behind the windshield. In this way, important information can be projected into the driver's field of vision, for example the current driving speed, navigation or warning information, which the driver can perceive without having to take his eyes off the road. Head-up displays can thus make a significant contribution to increasing road safety.

Projector and windshield HUD projection assemblies with wedge-shaped thermoplastic interlayer and/or wedge-shaped lenses are often used. A wedge angle is provided here to avoid double images. The radiation from HUD projectors is typically essentially s-polarized due to the better reflection characteristics of the windshield compared to p-polarization. However, if the viewer wears polarization-selective sunglasses that only transmit p-polarized light, the HUD image will at best be perceived as weakened. A solution to this problem is the use of projection arrangements using p-polarized light. DE102014220189A1 discloses a head-up display projection arrangement that operates with p-polarized radiation, wherein the windshield has a reflective structure that reflects p-polarized radiation toward the viewer. Also US20040135742A1 discloses a head-up display projection arrangement using p-polarized radiation having a reflective structure.

Head-up displays often have the problem that the area of the windshield that is intended for reflecting the light projected by the projector must have a high level of transparency, usually at least 70%. The reflected light of the projector is therefore superimposed by light from the external environment, which, depending on the lighting conditions, can lead to a reduction in contrast in the virtual image and thus to poorer visual perceptibility for the driver. Sufficient visual perceptibility of information that is particularly relevant to safety, such as lane assistance, speedometer or engine speed, should be guaranteed in all weather and light conditions. When designing a display that is based on head-up display technology, the projector must therefore have a correspondingly high performance so that the projected image has sufficient brightness, especially in sunlight, and can be easily recognized by the viewer . This requires a certain size of the projector and is associated with a correspondingly high power consumption.

WO 2022/073894 A1 and WO 2022/073860 A1 show the use of a masking strip in the edge region of the windshield with a transparent element arranged in front of the masking strip, which reflects an image projected onto the element into the vehicle interior. Due to the opaque background, the image can be perceived with a higher contrast.

Such windshields with an element in front of a masking strip which reflects an image projected onto the element into the vehicle interior have attractive imaging functions from inside the vehicle. From the outside, however, such windshields look like regular windshields, except for the large masking stripe, which may seem unnecessarily large to viewers unaware of the imaging capabilities from inside the vehicle.

In addition, sustainability aspects and the use of photovoltaic modules to generate energy are becoming increasingly important.

The object of the invention is to provide an improved laminated pane.

According to the proposal of the invention, this object is achieved by a composite pane Claim 1 solved. Advantageous configurations of the invention result from the dependent claims.

The invention relates to a laminated pane at least comprising an outer pane, an inner pane, a first thermoplastic intermediate layer, a second thermoplastic intermediate layer, a photovoltaic module and an opaque cover print.

The laminated pane is intended to separate the interior from the outside environment in a window opening of a vehicle. In the context of the invention, the inner pane refers to the pane of the laminated pane facing the vehicle interior. The outer pane refers to the pane facing the outside environment. The laminated pane is preferably a vehicle windshield, in particular the windshield of a motor vehicle, for example a car or truck.

The laminated pane has an upper edge and a lower edge as well as two side edges running in between. The top edge designates that edge which is intended to point upwards in the installation position. The lower edge designates that edge which is intended to point downwards in the installation position. In the case of a windshield, the top edge is often referred to as the roof edge and the bottom edge as the engine edge. In addition, the laminated pane has a main viewing area.

The outer pane and the inner pane each have an outside surface, an inside surface and a peripheral side edge. Within the meaning of the invention, the outside surface designates that main surface which is intended to face the external environment in the installed position. Within the meaning of the invention, the interior-side surface designates that main surface which is intended to face the interior in the installed position. The inside surface of the outer pane and the outside surface of the inner pane face each other.

The outside surface of the outer pane is referred to as side I. The surface of the outer pane on the interior side is referred to as side II. The outside surface of the inner pane is referred to as Side III. The interior surface of the inner pane is referred to as side IV.

According to the invention, the first thermoplastic intermediate layer is colorless and arranged in a first partial area between the outer pane and the inner pane and the second thermoplastic intermediate layer is dark-colored and arranged in a second partial area between the outer pane and the inner pane.

The photovoltaic module is arranged between the second thermoplastic intermediate layer and the outer pane in the second partial area.

The opaque covering print is arranged on the interior-side surface of the outer pane and has a first cutout and a second cutout.

When looking through the laminated pane, the first partial area and the second partial area do not overlap and the main viewing area is arranged completely in the first partial area and completely in the first recess. In addition, the second recess is arranged completely in the second partial area when viewed through the laminated pane.

It goes without saying that the first cutout is arranged completely in the first partial area and the second cutout is completely arranged in the second partial area.

Due to the fact that the photovoltaic module is arranged in the second partial area and the second recess is arranged completely in the second partial area when looking through the composite pane, the photovoltaic module is mostly visible when looking from the outside onto the composite pane in the second recess, only a peripheral edge area of the photovoltaic module is visible covered by the opaque cover print when viewed from the outside. When viewed from the inside, the photovoltaic module is covered by the dark-colored second thermoplastic intermediate layer. The laminated pane is therefore aesthetically pleasing both from the outside and from the inside.

In the context of the invention, a photovoltaic module is understood to mean a module in which a plurality of solar cells are arranged next to one another. The solar cells can be connected in series or in parallel. Photovoltaic modules are available in flexible and rigid versions. Rigid photovoltaic modules usually consist of silicon-based solar cells that are hermetically encapsulated between two glass plates or a glass plate and a backing film using encapsulating material. Flexible photovoltaic modules are based on organic materials. Suitable photovoltaic modules are known to those skilled in the art.

The fact that the second thermoplastic intermediate layer is dark in color conceals it Gaps between the solar cells of the photovoltaic module.

An adhesive layer can optionally be arranged between the photovoltaic module and the outer pane. This adhesive layer can be a colorless thermoplastic interlayer or as a so-called optical clear adhesive (OCA).

In a preferred embodiment, the second partial area is adjacent to the lower edge of the laminated pane or is at a maximum distance of 5 cm from it. In embodiments in which the second partial area is at a distance from the lower edge, the distance being a maximum of 5 cm, the area between the lower edge and the second partial area is preferably filled with an adhesive layer.

In an alternative preferred embodiment, the second partial area is adjacent to the upper edge of the laminated pane or is at a maximum distance of 5 cm from it. In embodiments in which the second partial area is at a distance from the upper edge, the distance being a maximum of 5 cm, the area between the upper edge and the second partial area is preferably filled with an adhesive layer.

The laminated pane can have two collector conductors, which are spaced apart from one another and are in electrically conductive contact with the photovoltaic module.

Busbars, so-called busbars, are advantageously designed as a band or strip. Busbars preferably contain at least one metal or a metal alloy or consist of a metal or a metal alloy. In principle, any electrically conductive material that can be processed into foils can be used for a busbar. Particularly suitable materials for busbars are, for example, aluminum, copper, tinned copper, gold, silver or tin and alloys thereof. The bus bars have, for example, a thickness of 0.03 mm to 0.3 mm and a width of 2 mm to 16 mm.

In a preferred embodiment, the thickness of the first thermoplastic intermediate layer increases at least in sections in the vertical course from bottom to top, i.e. in the direction of the upper edge of the laminated pane. The first thermoplastic intermediate layer particularly preferably has a wedge-shaped cross section. Alternatively, however, the first thermoplastic intermediate layer can also be of constant thickness and thus have a rectangular cross section.

The laminated pane can additionally comprise a functional layer which is arranged on the outside surface of the inner pane. The functional layer can be, for example, a layer that reflects infrared radiation, a layer that absorbs infrared radiation, a layer that absorbs UV radiation, a layer that reflects thermal radiation, an electrically conductive layer or a layer that reflects p-polarized light.

Likewise, the laminated pane can additionally comprise a reflection layer, which is arranged in the second partial area on the interior-side surface of the inner pane or between the inner pane and the second thermoplastic intermediate layer.

The reflection layer can be formed as a coating of the interior-side surface or the outside surface of the inner pane. The coating can be arranged directly adjacent to the interior surface or to the outside surface of the inner pane, or alternatively at least one other layer can be arranged between the respective surface and the reflection layer.

The reflection layer can alternatively be formed as a coating on a thin glass pane or film, which is arranged between the second thermoplastic intermediate layer and the inner pane or is glued to the interior-side surface of the inner pane.

The reflective layer preferably reflects at least 10%, particularly preferably at least 40%, very particularly preferably at least 70% of visible light. The reflective layer preferably reflects at most 90% of visible light. In the context of the invention, “reflected” means that the reflective layer reflects visible light that impinges on it. For the purposes of the invention, the reflection in a specific percentage range means an average degree of reflection at a defined angle of incidence (65°). The reflective layer is intended to reflect an image projected onto the reflective layer by a projector. The reflective layer can be transparent, but is preferably opaque.

Suitable reflection layers are known to those skilled in the art.

• • einen dielektrischer Schichtstapel enthaltend TiO₂-Schichten und SiO₂-Schichten,
• • einen dielektrischer Schichtstapel enthaltend SiZrN-Schichten und SiO₂-Schichten,
• • einen Schichtstapel enthaltend Si:B-Schichten oder SiZrAl-Schichten,
• • einen Schichtstapel enthaltend Si-Schichten und SiO₂-Schichten,
• • einen Schichtstapel enthaltend Si-Schichten und Si₃N₄-Schichten oder
• • einen karbidischer Schichtstapel enthaltend TiC-Schichten und/oder ZrC-Schichten

oder besteht aus einem oder mehreren dieser Schichtstapel. Die beschriebenen Schichtstapel weisen geeignete Reflexionseigenschaften auf, um als Teil einer Projektionsanordnung ein homogenes Bild zu erzielen.The reflective layer preferably contains

• • a dielectric layer stack containing TiO ₂ layers and SiO ₂ layers,
• • a dielectric layer stack containing SiZrN layers and SiO ₂ layers,
• • a layer stack containing Si:B layers or SiZrAl layers,
• • a layer stack containing Si layers and SiO ₂ layers,
• • a layer stack containing Si layers and Si ₃ N ₄ layers or
• • a carbidic layer stack containing TiC layers and/or ZrC layers

or consists of one or more of these layer stacks. The layer stacks described have suitable reflection properties in order to achieve a homogeneous image as part of a projection arrangement.

The reflective layer can also be formed as a coating on a thin glass pane, with the coated thin glass pane being connected in the second partial area via an adhesive layer to the interior surface or the outside surface of the inner pane, or the coated thin glass pane being arranged between the inner pane and the second thermoplastic intermediate layer.

The thin glass pane preferably has a thickness of 20 μm to 500 μm, particularly preferably 50 μm to 300 μm, very particularly preferably 50 μm to 100 μm, for example 70 μm.

Due to the fact that the second thermoplastic intermediate layer is dark-colored and is arranged behind the reflection layer when looking at the inside of the laminated pane, the second thermoplastic intermediate layer produces a high background contrast for the reflection layer.

The outer pane and inner pane preferably contain or consist of glass, particularly preferably flat glass, float glass, quartz glass, borosilicate glass, soda-lime glass, alumino-silicate glass, or clear plastics, preferably rigid clear plastics, in particular polyethylene, polypropylene, polycarbonate, polymethyl methacrylate , polystyrene, polyamide, polyester, polyvinyl chloride and/or mixtures thereof.

The outer pane and the inner pane can be unprestressed, partially prestressed or prestressed independently of one another. If at least one of the panes is to have a prestress, this can be a thermal or chemical prestress.

The thickness of the outer pane and the inner pane can vary widely and can thus be adapted to the requirements of the individual case. The outer pane and the inner pane preferably have thicknesses of 0.5 mm to 5 mm, particularly preferably 1 mm to 3 mm, very particularly preferably 1.6 mm to 2.1 mm. For example, the outer pane has a thickness of 2.1 mm and the inner pane has a thickness of 1.6 mm. However, the outer pane or in particular the inner pane can also be a pane with a thickness of, for example, 0.55 mm.

The thin glass pane preferably contains or consists of alumino-silicate glass, borosilicate glass, alumino-borosilicate glass. The thin glass pane can be toughened, partially toughened or not toughened.

The first thermoplastic intermediate layer and the second thermoplastic intermediate layer independently contain at least one thermoplastic polymer, preferably ethylene vinyl acetate (EVA), polyvinyl butyral (PVB) or polyurethane (PU) or mixtures or copolymers or derivatives thereof, particularly preferably PVB. The first thermoplastic intermediate layer and the second thermoplastic intermediate layer are, independently of one another, typically formed from a thermoplastic film (connecting film). The first and the second thermoplastic intermediate layer can each be formed by a single film or by more than one film. The first and/or the second thermoplastic intermediate layer can also be a film with functional properties, for example a film with acoustically damping properties. The second thermoplastic intermediate layer is colored dark as described above and thus has a dye. The degree of light transmission (TL) of the second thermoplastic intermediate layer is preferably 0%.

The photovoltaic module of a laminated pane according to the invention can be used to convert incident light into electricity. The electricity obtained in this way can be used as an energy source for a vehicle containing a laminated pane according to the invention, for example to operate an image display device, in particular for a head-up display. The energy generated by the photovoltaic module can also increase the range of electric vehicles. The photovoltaic module can thus serve as a sustainable energy source for a vehicle containing a laminated pane according to the invention.

A photovoltaic element is a semiconductor and has electrical properties similar to a normal light emitting diode (LED). With regular light absorption, a current flow from the anode generated to the cathode of the solar cells of the photovoltaic module.

When an external power source is applied from the outside with a current flow in the same direction, the photovoltaic module works as an LED and emits infrared (IR) light. The wavelength of this IR light is about 1.1 µm, given by the physical properties of the solar cells of the photovoltaic module. In addition to the IR transmission function, the photovoltaic module is heated directly by the current flow (Joule heating). Both functions, the IR emission and the heating of the photovoltaic module by electricity, can heat the laminated pane in the area of the second partial area. The photovoltaic module can thus be used to prevent the laminated pane from fogging up in the second partial area. The photovoltaic module can thus be used, for example, as a heating element instead of an additional heatable coating or instead of heating wires.

The solar cells of the photovoltaic module can be monofacial solar cells or bifacial solar cells. The advantage of a photovoltaic module with bifacial solar cells for use as a heating element is that this IR light emits both in the direction of the outer pane and in the direction of the inner pane of the laminated pane. This improves the heating property by radiation. In theory, a photovoltaic module with bifacial solar cells would convert light from both the external environment and the interior into electricity. In the laminated pane according to the invention, however, it is not possible to convert light incident from the external environment into electricity, since the dark-colored second thermoplastic intermediate layer shields the photovoltaic module from the interior.

The invention also relates to a projection arrangement comprising a composite pane according to the invention and at least one image display device which is directed towards the composite pane and is arranged such that the interior surface of the inner pane is the surface of the inner pane closest to the image display device.

In a preferred embodiment of the projection arrangement, the at least one image display device is directed onto an area lying entirely within the main viewing area.

In a further preferred embodiment of the projection arrangement, the composite pane has a reflection layer which is arranged in the second partial area on the interior surface of the inner pane or between the inner pane and the second thermoplastic intermediate layer, and the at least one image display device is directed towards the reflection layer.

The invention is explained in more detail below with reference to drawings and exemplary embodiments. The drawings are schematic representations and not to scale. The drawings do not limit the invention in any way.

• 1 eine Draufsicht auf eine Ausführungsform einer erfindungsgemäßen Verbundscheibe,
• 2 einen Querschnitt durch die in der 1 gezeigte Ausführungsform einer erfindungsgemäßen Verbundscheibe,
• 3 einen Querschnitt durch eine weitere Ausführungsform einer erfindungsgemäßen Verbundscheibe,
• 4 eine Draufsicht auf eine weitere Ausführungsform einer erfindungsgemäßen Verbundscheibe,
• 5 eine Draufsicht auf eine weitere Ausführungsform einer erfindungsgemäßen Verbundscheibe,
• 6 eine Draufsicht auf eine weitere Ausführungsform einer erfindungsgemäßen Verbundscheibe,
• 7 einen Querschnitt durch die in der 6 gezeigte Ausführungsform einer erfindungsgemäßen Verbundscheibe,
• 8 einen Querschnitt durch eine weitere Ausführungsform einer erfindungsgemäßen Verbundscheibe,
• 9 einen Querschnitt durch eine weitere Ausführungsform einer erfindungsgemäßen Verbundscheibe,
• 10 einen Querschnitt durch eine weitere Ausführungsform einer erfindungsgemäßen Verbundscheibe,
• 11 einen Querschnitt durch eine weitere Ausführungsform einer erfindungsgemäßen Verbundscheibe, und
• 12 einen Querschnitt durch eine weitere Ausführungsform einer erfindungsgemäßen Verbundscheibe.

Show it:

• 1 a plan view of an embodiment of a composite pane according to the invention,
• 2 a cross section through the in the 1 shown embodiment of a composite pane according to the invention,
• 3 a cross section through a further embodiment of a composite pane according to the invention,
• 4 a plan view of a further embodiment of a composite pane according to the invention,
• 5 a plan view of a further embodiment of a composite pane according to the invention,
• 6 a plan view of a further embodiment of a composite pane according to the invention,
• 7 a cross section through the in the 6 shown embodiment of a composite pane according to the invention,
• 8th a cross section through a further embodiment of a composite pane according to the invention,
• 9 a cross section through a further embodiment of a composite pane according to the invention,
• 10 a cross section through a further embodiment of a composite pane according to the invention,
• 11 a cross section through a further embodiment of a composite pane according to the invention, and
• 12 a cross section through a further embodiment of a composite pane according to the invention.

In the 1 an embodiment of a composite pane 100 according to the invention is shown in plan view and the 2 shows a cross section through in the 1 composite pane 100 shown along section line X'-X.

The in the 1 and 2 The laminated pane 100 shown has an upper edge O, a lower edge U and two side edges S and a main viewing area H. In the in the 1 and 2 In the embodiment shown, the laminated pane 100 comprises an outer pane 1 with an outside surface I and an inside surface II, an inner pane 2 with an outside surface III and an inside surface IV, a first thermoplastic intermediate layer 3, a second thermoplastic intermediate layer 4, a photovoltaic module 5 and an opaque cover print 6. The first thermoplastic intermediate layer 3 is colorless and is arranged in a first partial area between the outer pane 1 and the inner pane 2 and the second thermoplastic intermediate layer 4 is dark-colored and arranged in a second partial area between the outer pane 1 and the inner pane 2, wherein the first portion and the second portion do not overlap. The photovoltaic module 5 is arranged between the second thermoplastic intermediate layer 4 and the outer pane 1 in the second partial area. The opaque cover print 6 is arranged on the interior-side surface II of the outer pane 1 and has a first cutout 7 and a second cutout 8 . The main viewing area H of the composite pane 100 is arranged completely in the first recess 7 when viewed through the composite pane 100 and the second recess 8 is arranged completely in the second partial area when viewed through the composite pane 100 .

An adhesive layer can optionally be arranged between the photovoltaic module 5 and the outer pane 1 .

In the in the 1 and 2 In the embodiment shown, the second partial area and thus the second thermoplastic intermediate layer 4 and the photovoltaic module 5 are arranged directly adjacent to the lower edge U of the laminated pane 100 . Alternatively, it is also possible for the second partial area and thus the second thermoplastic intermediate layer 4 and the photovoltaic module 5 to be arranged at a distance of 5 cm from the lower edge U, for example. In this case, the area between the lower edge U and the second partial area is preferably filled with an adhesive layer.

In the 1 the main viewing area H is shown with a dotted border and the second partial area with a dashed border. For a simplified representation, the opaque masking print 6 is shown in FIG 1 shown colorless.

3 shows a further embodiment of a laminated pane 100 according to the invention 3 shown embodiment differs from that in FIG 1 and 2 shown only to the effect that the laminated pane additionally has a functional layer 10 arranged on the outside surface III of the inner pane 2 .

4 shows the plan view of a further embodiment of a laminated pane 100 according to the invention 4 shown embodiment differs from that in FIG 1 shown only to the extent that two busbars 9 spaced apart from each other are electrically conductively contacted with the photovoltaic module 5.

5 shows the plan view of a further embodiment of a laminated pane 100 according to the invention 5 shown embodiment differs from that in FIG 1 shown only to the extent that two busbars 9 spaced apart from each other are electrically conductively contacted with the photovoltaic module 5.

In the 6 Another embodiment of a laminated pane 100 according to the invention is shown in plan view and the 7 shows a cross section through in the 6 composite pane 100 shown along section line Y'-Y.

The in the 6 and 7 shown embodiment differs from that in FIGS 1 and 2 shown only to the effect that the second partial area and thus the second thermoplastic intermediate layer 4 and the photovoltaic module 5 are not arranged directly adjacent to the lower edge U of the composite pane 100, but directly adjacent to the upper edge O of the composite pane 100. Alternatively, it is also possible that the second partial area and thus the second thermoplastic intermediate layer 4 and the photovoltaic module 5 are arranged at a distance of 5 cm from the upper edge O, for example. In this case, the area between the top edge O and the second partial area is preferably filled with an adhesive layer.

8th shows a further embodiment of a laminated pane 100 according to the invention 8th shown embodiment differs from that in FIG 6 and 7 shown only to the effect that the laminated pane additionally has a functional layer 10 arranged on the outside surface III of the inner pane 2 .

9 shows a further embodiment of a laminated pane 100 according to the invention 9 shown embodiment differs from that in FIG 1 and 2 shown only to the extent that the laminated pane also has a reflective layer 11, which in second partial area between the inner pane 2 and the second thermoplastic intermediate layer 4 is arranged. The reflective layer 11 can be used, for example, as a coating on the outside surface III of the inner pane 2, as a reflective film arranged between the inner pane 2 and the second thermoplastic intermediate layer 4, or as a coating on a thin glass pane or film arranged between the inner pane 2 and the second thermoplastic intermediate layer 4 be trained.

10 shows a further embodiment of a laminated pane 100 according to the invention 10 shown embodiment differs from that in FIG 9 shown only to the effect that the additional reflection layer 11 is not arranged between the inner pane 2 and the second thermoplastic intermediate layer 4, but is arranged on the interior-side surface IV of the inner pane 2. The reflective layer 11 can be formed, for example, as a coating on the interior-side surface IV of the inner pane 2, as a reflective film bonded to the interior-side surface IV of the inner pane 2, or as a coating on a thin glass pane or film bonded to the interior-side surface IV of the inner pane 2.

11 shows a further embodiment of a laminated pane 100 according to the invention 11 shown embodiment differs from that in FIG 9 shown only to the effect that the laminated pane additionally has a functional layer 10 arranged on the outside surface III of the inner pane 2 .

12 shows a further embodiment of a laminated pane 100 according to the invention 12 shown embodiment differs from that in FIG 10 shown only to the effect that the laminated pane additionally has a functional layer 10 arranged on the outside surface III of the inner pane 2 .

It goes without saying that those in the 7 or 8th The embodiments shown can additionally have a reflective layer 11 which is arranged in the second partial area on the interior-side surface IV of the inner pane 2 or between the inner pane 2 and the second thermoplastic intermediate layer 4 .

An estimated output per square meter of 200 to 225 W can be achieved with a laminated pane according to the invention with a photovoltaic module with a width of 1350 mm and a height of 155 mm and thus an area of 0.21 square meters. The estimated power of the photovoltaic module in this case is therefore 42.00 W to 47.25 W. An image display device in the form of a display has a power consumption of 3 W. If 8 displays are used, the total power consumption of the 8 displays is 24 W, see above that the photovoltaic module generates enough energy to supply all 8 displays and have a power surplus of 18.00 W to 23.25 W.

reference list

1

outer pane

2

inner pane

3

first thermoplastic intermediate layer

4

second thermoplastic intermediate layer

5

photovoltaic module

6

opaque cover print

7

first recess

8th

second recess

9

busbar

10

functional layer

11

reflective layer

100

composite pane

O

Top edge of composite pane 100

u

Bottom edge of composite pane 100

S

side edge

H

main viewing area

I

Outside surface of the outer pane 1

II

interior surface of the outer pane 1

III

outside surface of the inner pane 2

IV

interior surface of the inner pane 2

X'-X

cutting line

Y'-Y

cutting line

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• DE 102014220189 A1 [0004]
• US20040135742A1 [0004]
• WO 2022073894 A1 [0006]
• WO 2022073860 A1 [0006]

Claims (8)

Composite pane (100), at least comprising - An outer pane (1) with an outside surface (I) and an inside surface (II) - an inner pane (2) with an outside surface (III) and an inside surface (IV), - a first thermoplastic intermediate layer (3) - a second thermoplastic intermediate layer (4), - a photovoltaic module (5), - an opaque cover print (6), wherein the composite pane (100) has an upper edge (O), a lower edge (U), two side edges (S) and a main viewing area (H), the first thermoplastic intermediate layer (3) is colorless and is arranged in a first partial area between the outer pane (1) and the inner pane (2), the second thermoplastic intermediate layer (4) is dark in color and is arranged between the outer pane (1) and the inner pane (2) in a second partial area, the photovoltaic module (5) between the second thermoplastic intermediate layer (4) and the outer pane (1) in the second partial area is arranged, the opaque cover print (6) is arranged on the interior-side surface (II) of the outer pane (1) and has a first recess (7) and a second recess (8), the first partial area and the second being viewed through the laminated pane (100). Partial area does not overlap, the main see-through area (H) is arranged completely in the first partial area and completely in the first recess (7), and the second recess (8) is arranged completely in the second partial area. Composite pane (100) according to claim 1 , wherein the second partial area is adjacent to the lower edge (U) or at most 5 cm away from it. Composite pane (100) according to claim 1 , wherein the second partial area is adjacent to the top edge (O) or at most 5 cm away from it. Composite pane (100) according to one of Claims 1 until 3 , additionally comprising two busbars (9), which are spaced apart from each other with the photovoltaic module (5) are electrically conductively contacted. Composite pane (100) according to one of Claims 1 until 4 , wherein the thickness of the first thermoplastic intermediate layer (3) increases at least in sections in the vertical course from bottom to top. Composite pane (100) according to one of Claims 1 until 5 , additionally comprising a functional layer (10) which is arranged on the outside surface (III) of the inner pane (2). Composite pane (100) according to one of Claims 1 until 6 , additionally comprising a reflection layer (11) which is arranged in the second partial area on the interior-side surface (IV) of the inner pane (2) or between the inner pane (2) and the second thermoplastic intermediate layer (4). Composite pane (100) according to claim 7 , wherein the reflection layer (11) is formed as a coating on a thin glass pane.

Images