DE202022102729U1 - facade element - Google Patents

Abstract

Façade element (1) with a pane arrangement (2) comprising one or more glass panes (3, 4, 5) arranged parallel to one another, with at least one inner surface (3.1, 4.1, 5.1) of at least one glass pane (3, 4, 5) covering the surface with a first print pattern (DM1) and at least one outer surface (3.2, 4.2, 5.2) of this or another glass pane (3, 4, 5) is printed over the entire area with a second print pattern (DM2), and depending on the design of the first and second Print pattern (DM1, DM2) the transmission and / or reflection properties of the disc assembly (2) are adjustable.

Description

The invention relates to a facade element with a pane arrangement comprising a plurality of glass panes arranged parallel to one another.

Glass is currently gaining in importance as a building material. Architects sometimes design complete facades from glass elements. Coated glass substrates are used, which, for example, reduce solar radiation and thus lower costs for air conditioning, in order to realize buildings that are not only aesthetically high-quality but also energy-efficient at the same time.

Many different coatings are known. There are glasses with anti-reflective coatings, thermally improving coatings (heat insulation, Low-E), coatings that reflect infrared radiation (sun protection) or heatable layers. Many of these coatings are not very stable mechanically and are particularly susceptible to scratching and corrosion. Silver-based coatings in particular are very sensitive in this regard.

In addition, the person skilled in the art is familiar with sun protection devices for facade glass, consisting either of external devices not directly connected to the glass, such as shading elements, or directly connected to the glass as a coating for reflecting solar radiation.

The main advantage of external sun protection devices is that, in addition to reflecting the incoming solar radiation, a defined part of the solar radiation is directed into the building.

For example, from the WO 2010/127702 A1 a device has become known that is installed in the space between the panes (SZR) of an insulating glass composite. It consists of a perforated sheet of metal. The geometry of the openings, their orientation and the depth/width ratio of the opening to the web thickness allow sunlight to enter the building depending on the position of the sun.

The higher the position of the sun, the better the shading from this perforated metal sheet. If the position of the sun is low (angle of incidence), sunlight can enter the building unhindered. This reduces the energy requirement for cooling the building more effectively than, for example, sun protection layers directly on the glass pane. The disadvantages of this external sun protection device are the complex installation of the perforated metal sheet in e.g. an insulating glass composite and the high material costs.

Sun protection devices that are directly connected to the facade glass, such as sun protection layers according to DE 69 707 396 T2 , are characterized by low production costs compared to external devices, since they are manufactured in large-area coating systems with a high area throughput.

However, a significant disadvantage of the sun protection layers compared to the external devices is the lack of possibility of directing the light into the building depending on the position of the sun.

The object of the invention is therefore to show a facade element with a pane arrangement comprising a plurality of glass panes arranged parallel to one another, which avoids the disadvantages known from the prior art. To solve this problem, a facade element according to claim 1 is designed. The dependent claims relate to particularly advantageous embodiment variants of the invention.

The essential aspect of the present invention is to be seen in the provision of a facade element with a pane arrangement comprising one or more glass panes arranged parallel to one another, with at least one inner surface of at least one glass pane having a first printed pattern and at least one outer surface of this or another glass pane having a flat surface is printed with a second print pattern, and the transmission and/or reflection properties of the pane arrangement being adjustable depending on the formation of the first and second print pattern. By providing two different printed patterns on the inner surface of at least one pane of the pane arrangement and at least on the outer surface of this or another pane of glass, the transmission and/or reflection properties of the pane arrangement can be set depending on the design of the two printed patterns and thus advantageously also a light control dependent on the position of the sun be realized by the facade element. The pane arrangement can consist of a glass pane, which is then printed on its inner surface with a first print pattern and on its outer surface with a second print pattern. However, the pane arrangement can also consist of a plurality of glass panes arranged parallel to one another, in which case the inner surface of one of the panes has a first printed pattern and the outer surface of this ider one another pane is printed with a second print pattern.

According to an advantageous embodiment variant, it can be provided that the first and/or second print pattern can be formed with differently scalable coverage densities, which can preferably be set variably from 0% to 100%. In the context of the present invention, coverage density is understood in particular as the transmission property of the respective printed layer for light, i.e. the permeability for light, with a coverage density of 0% being a completely or almost completely unhindered transmission of light and 100% being a completely or almost completely prevented transmission of light mean light. Both print patterns are thus particularly advantageously designed to be scalable and do not have a fixed size, but are mutually dependent. Due to the variable adjustability of the coverage densities, the light transmittance can also assume any value between 0% and 100%. The coverage density is thus steplessly adjustable.

According to a further advantageous embodiment variant, it can be provided that the transmission and/or reflection properties of the facade element can be adjusted parametrically by means of the different coverage densities of the first and/or second printed pattern. Both print patterns are thus particularly advantageously designed to be scalable and do not have a fixed size, but are preferably mutually dependent.

According to yet another advantageous embodiment variant, it can be provided that the respective first and/or second printed pattern is provided at least over part of the area, preferably over the entire area, on the corresponding glass pane. In other words, the respective print pattern can only be located in a partial area or partial area of the respective glass pane, so that only a partial area of the glass pane is printed with the print pattern, or the entire area of the glass pane can be provided with the print pattern. However, the respective print pattern is particularly advantageously provided over the entire glass pane, ie the entire glass pane is printed completely. This leads to a particularly effective shading of the facade element.

According to yet another advantageous embodiment variant, it can be provided that the first and/or second printed pattern is produced by means of digital printing or screen printing.

According to yet another advantageous embodiment variant, it can be provided that a hexagonal grid is provided to form a uniform grid structure as the basic shape for the first and second print pattern. The hexagonal grid is particularly advantageously designed as a hexagon.

According to yet another advantageous embodiment variant, it can be provided that the common grid structure for the first and second print pattern is formed by a plurality of hexagonal grids lying in contact with one another, with all hexagonal grids preferably being identical to one another. This means that all print patterns within a print plane, for example all print patterns on a common pane of glass, generate surfaces that are free of intersections. In particular, a plurality of grids are provided for both the first and the second print pattern, which form the common grid structure.

According to yet another advantageous embodiment variant, it can be provided that the hexagonal grid has a free, circular center area in the center, which is provided for the first and/or second print pattern. In other words, the hexagonal grid has a free area in the middle, which is circular and in which the print pattern can be printed.

According to yet another advantageous embodiment variant, it can be provided that the hexagonal grid is part or component part of the printed first and/or second print pattern.

According to yet another advantageous embodiment variant, it can be provided that the first and/or second print pattern is generated by the hexagonal grid being intersected centrally with a printed circular area of a definable diameter.

According to yet another advantageous embodiment variant, it can be provided that the parametrically scalable coverage density of the first and/or second print pattern is generated over an adjustable diameter of the respective printed circular area.

According to yet another advantageous embodiment variant, it can be provided that the first and/or second printed pattern is formed by three printed circular sections, with the three circular sections being provided completely in the free center area of the grid in such a way that the free circular center area of the grid is divided into three equal 60° segments.

According to yet another advantageous embodiment variant, it can be provided that the three segment points of the three circle sections define the respective start and end points of the circle segments that form the printed first and/or second print pattern in the free center area of the grid.

According to yet another advantageous embodiment variant, it can be provided that two different filling types can be generated as printed circle sections by means of the first and/or second print pattern.

According to yet another advantageous embodiment variant, it can be provided that the parametrically scalable coverage density of the first and/or second print pattern is generated via an adjustable diameter for all three circle segments, with the respectively set diameters being identical for all three circle segments.

According to yet another advantageous embodiment variant, it can be provided that the coverage density of the first and/or second print pattern is parameterized as a function of a desired degree of energy transmission for the facade element. The degree of energy transmission, also known to those skilled in the art as the g value, is a measure of the permeability of transparent components to energy. The g-value indicates what percentage of the energy is lost through e.g. B. sunlight can get inside and there contributes to the warming. The g value as the total energy transmittance is the sum of the direct transmission of solar radiation and the secondary heat emission inwards through radiation and convection. Loss occurs through reflection or absorption from or on the transparent component. Within the scope of the present invention, the g value assumes a value between 0 and 1. A G value of 0.7, for example, indicates that 70% of the incident energy is transmitted.

According to yet another advantageous embodiment variant, it can be provided that the transmission and/or reflection properties can be adjusted by parameterizing the coverage densities of the first and/or second print pattern as a function of the angle, in particular as a function of the angle of incidence of the sunlight on the facade element. Because the first and second print patterns are arranged, for example, on different panes of glass, the two print patterns are located at a distance from one another. Depending on the angle, it can thus be determined how much light is allowed to enter from the outside through the facade element at which angle of incidence, so that an angle-dependent parameterization is made possible.

According to yet another advantageous embodiment variant, it can be provided that the first printed pattern on the inner surface of at least one glass pane is designed differently from the second printed pattern on the outer surface of this or another glass pane.

For the purposes of the invention, the expression “substantially” or “roughly” or “about” means deviations from the exact value in each case by +/- 10%, preferably by +/- 5% and/or deviations in the form of for the Function minor changes.

Further developments, advantages and possible applications of the invention also result from the following description of exemplary embodiments and from the figures. All of the features described and/or illustrated are fundamentally the subject matter of the invention, either alone or in any combination, regardless of how they are summarized in the claims or how they relate back to them. The content of the claims is also made part of the description.

• 1 in vereinfachter seitlicher Darstellung eine beispielhafte Ausführungsvariante eines erfindungsgemäßen Fassadenelements;
• 2 in vereinfachter Darstellung eine Draufsicht auf eine Ausführungsvariante eines Druckmusters in einem vereinzelten Raster;
• 3 in vereinfachter Darstellung eine Draufsicht auf die Ausführungsvariante eines Druckmusters gemäß 2 in unterschiedlichen Deckungsdichten;
• 4 in vereinfachter Darstellung eine Draufsicht auf eine weitere Ausführungsvariante eines Druckmusters in einem vereinzelten Raster;
• 5 in vereinfachter Darstellung eine Draufsicht auf einen ersten Fülltyp der Ausführungsvariante des Druckmusters gemäß 4 in unterschiedlichen Deckungsdichten; und
• 6 in vereinfachter Darstellung eine Draufsicht auf einen zweiten Fülltyp der Ausführungsvariante des Druckmusters gemäß 4 in unterschiedlichen Deckungsdichten.

The invention is explained in more detail below using an exemplary embodiment with reference to the figures. Show it:

• 1 in a simplified side view an exemplary embodiment of a facade element according to the invention;
• 2 in a simplified representation, a plan view of an embodiment variant of a print pattern in an isolated grid;
• 3 in a simplified representation, a plan view of the variant embodiment of a print pattern according to FIG 2 in different coverage densities;
• 4 in a simplified representation, a plan view of a further embodiment variant of a print pattern in an isolated grid;
• 5 in a simplified representation a plan view of a first type of filling of the embodiment variant of the print pattern according to FIG 4 in different coverage densities; and
• 6 in a simplified representation a plan view of a second type of filling of the embodiment variant of the print pattern according to FIG 4 in different coverage densities.

Identical reference symbols are used in the figures for elements of the invention that are the same or have the same effect. Furthermore, for the sake of clarity, only reference numbers that are required for the description of the respective figure are shown in the individual figures.

the 1 1 shows a facade element 1 with a pane arrangement 2 comprising a plurality of glass panes 3, 4, 5 arranged parallel to one another, which separates an interior area I of a building, for example, from an exterior area A of the building. Likewise, the facade element 1 according to the invention can be formed on a pane arrangement 2 with only a single pane. However, such an embodiment variant is not shown in the figures. For example, the pane arrangement 2 can have one or more glass panes 3, 4, 5 arranged parallel and spaced apart from one another, which are surrounded by an edge composite frame 10 to form intermediate spaces 9. Such a facade element 1 can also be used, for example, in a frame that is not shown in detail, in particular a window or door frame, which in turn can be let into an opening in the masonry.

As also from the 1 recognizable, each of the glass panes 3, 4, 5 comprises an inner surface 3.1, 4.1, 5.1 corresponding to the inner area I and a corresponding outer surface 3.2, 4.2, 5.2 relative to the outer area A.

According to the invention, at least one inner surface 3.1, 4.1, 5.1 of at least one glass pane 3, 4, 5 has a first printed pattern DM1 and at least one of the outer surfaces 3.2, 4.2, 5.2 of this or another glass pane 3, 4, 5 has a second printed pattern DM2 printed. Furthermore, the transmission and/or reflection properties of the pane arrangement 2 can be adjusted depending on the design of the first and second printed pattern DM1, DM2. It can also be provided that multiple glass panes 3, 4, 5 each have a first and/or second printed pattern DM1, DM2. The first and second print pattern DM1, DM2 can preferably also be printed on a single one of the glass panes 3, 4, 5, namely over a large area on its corresponding outer surface 3.2, 4.2, 5.2 and inner surface 3.1, 4.1, 5.1.

Furthermore, the first and/or second print pattern DM1, DM2 can be formed with differently scalable coverage densities DD, which can preferably be variably set from 0% to 100%. In the context of the present invention, coverage density is understood in particular as the transmission property of the respective printed layer for light, i.e. the permeability for light, with a coverage density of 0% being a completely or almost completely unhindered transmission of light and 100% being a completely or almost completely prevented transmission of light mean light. Provision can therefore be made for the first and/or second print pattern DM1, DM2 to be completely or almost completely translucent or else completely or almost completely opaque. Due to the variable adjustability of the coverage densities DD, the light transmittance can also assume any value between 0% and 100%. Thus, ultimately, the transmission and/or reflection properties of the facade element 1 can be adjusted parametrically by means of the different coverage densities DD of the first and/or second print pattern DM1, DM2.

The respective first and/or second printed pattern DM1, DM2 can therefore advantageously be provided on the corresponding glass pane 3, 4, 5 at least over part of the area, preferably over the entire area. If the corresponding glass pane 3, 4, 5 is printed over part of the area, it is not the entire glass pane surface that is printed, but rather only a partial area of the entire glass pane surface with the first and/or second print pattern DM1, DM2, while in the case of full-area printing the entire glass pane surface of the corresponding Glass pane 3, 4, 5 is comprised of the first and/or second print pattern DM1, DM2.

The first and/or second print pattern DM1, DM2 can be produced, for example, by means of digital printing or screen printing. Digital printing, also known to those skilled in the art as Direct Digital Printing (DDP), refers to a group of printing processes in which the print image is transferred directly from a file or data stream from a computer to a printing machine without using a static printing form . In particular, the digital print can be a laser print or an inkjet print. Screen printing is a printing process in which the ink is printed through a fine-meshed fabric onto the material to be printed using a rubber squeegee. In those areas of the fabric where no color is to be printed in accordance with the printed image, the mesh openings of the fabric are made color-impermeable using a stencil.

As in particular from the 2 until 6 A hexagonal grid 6 can be seen to form a uniform grid structure 7 as the basic shape for the first and second print pattern DM1, DM2. The common raster structure 7 for the first and second print pattern DM1, DM2 is formed by a plurality of hexagonal grids 6 which are in contact with one another, all hexagonal grids 6 preferably being of identical design to one another. In other words, the grid 6 forms a basic form for the first and/or second print pattern DM1, DM2, which enables simple packaging as a grid structure 7. Thus, in the respective printing plane, that is to say the first and/or second separate printing pattern DM1, DM2, printing areas free of intersections are created. For this purpose, the hexagonal grid 6 has a free, circular central area 8 in the center, which is provided for the first and/or second print pattern DM1, DM2. In particular, a plurality of grids 6 are provided for both the first and the second print pattern DM1, DM2, which form the common grid structure 7.

For example, the variant of the print pattern 2 and 3 be provided as the first print pattern DM1 on the inner surface 3.1, 4.1, 5.1 of at least one glass pane 3, 4, 5 and the embodiment variant of the print pattern 4 until 6 on the outer surface 3.2, 4.2, 5.2 of this or another glass pane 3, 4, 5 are provided.

Alternatively, it is also possible that the variant of the print pattern 4 until 6 is provided as the first print pattern DM1 on the inner surface 3.1, 4.1, 5.1 of at least one glass pane 3, 4, 5 and the embodiment variant of the print pattern of 2 and 3 on the outer surface 3.2, 4.2, 5.2 of this or another glass pane 3, 4, 5 are provided.

In other words, the first printed pattern DM1 on the inner surface 3.1, 4.1, 5.1 of the at least one glass pane 3, 4, 5 can advantageously be different from the second printed pattern DM2 on the outer surface 3.2, 4.2, 5.2 of this or another glass pane 3, 4, 5 be trained.

As in particular in the variant of the 2 and 3 recognizable for the first and/or print pattern DM1, DM2, the hexagonal grid 6 can be formed as part or component of the printed first and/or second print pattern DM1, DM2. Furthermore, from this embodiment of the 2 and 3 for the first and/or second print pattern DM1, DM2 it can be seen that this is generated by the hexagonal grid 6 being intersected centrally with a printed circular area of a definable diameter D. As also from the 3 recognizable, the parametrically scalable coverage density DD of the first and/or second print pattern DM1, DM2 is generated over an adjustable diameter D of the respective printed circular area. The largest diameter D is chosen in such a way that it coincides with the corner points of the grid 6 , while the smallest diameter D forms a central point M of the grid 6 . For this embodiment variant of the print pattern, the largest diameter D down to a comparatively smaller diameter D is printed. A coverage of 100% can be achieved by printing up to the midpoint M. the 3 shows different coverage densities DD in the 2 illustrated first and / or second print pattern DM1, DM2. In the left area of 3 a coverage density DD of 0% is shown, which increases in the direction of the arrow to the right up to a coverage density of 100%.

As in particular in the variant of the 4 until 6 recognizable for the first and/or second print pattern DM1, DM2, this can be formed by three printed circle sections KA1...KA3, with the three circle sections KA1...KA3 being provided completely in the free central area 8 of the grid 6 such that the free circular central area 8 of the grid 6 is divided into three equal 60° segments. The three segment points P1, P2, P3 of the three circle sections KA1...KA3 define the respective start and end points of the circle segments that form the printed first and/or second print pattern DM1, DM2 in the free central area 8 of the grid 6. Consequently, by means of the first and/or second print pattern DM1, DM2, two different fill types can advantageously also be generated as printed circular sections, the 5 the first fill type and the 6 shows the second fill type.

Advantageously, it can also be provided that the parametrically scalable coverage density DD of the first and/or second print pattern DM1, DM2 is generated via an adjustable diameter D1...D3 for all three circular sections KA1...KA3, with the diameters D1. ..D3 are identical for all three circle segments KA1...KA3.

The two filling types of the 5 and 6 differ in that the fill type of the 5 the coverage density DD with the highest transparency is present in the center M of the grid 6 (corresponding to a coverage density of 0%), while the fill type is the 6 has the lowest transparency when reaching the center M - when a coverage density of 100% is reached here. the 5 shows different coverage densities DD in the 4 shown first and / or second print pattern DM1, DM2 with a first fill type. In the left area of 5 a coverage density DD of 0% is shown, which in the direction of the arrow to the right up to a Cover density increases from 100%. Furthermore, in 6 also different coverage densities DD in the 4 illustrated first and / or second print pattern DM1, DM2 shown with a second fill type. In the left area of 6 a coverage density DD of 0% is shown, which increases in the direction of the arrow to the right up to a coverage density of 100%.

Provision can also advantageously be made for the coverage density DD of the first and/or second print pattern DM1 , DM2 to be parameterized as a function of a desired degree of energy transmission g for the facade element 1 .

Finally, the transmission and/or reflection properties can be adjusted depending on the angle, in particular depending on the angle of incidence of the sunlight on the facade element, by parameterizing the coverage densities DD of the first and/or second print pattern DM1, DM2. It can be advantageous for this that the first printed pattern DM1 on the inner surface 3.1, 4.1, 5.1 of the at least one glass pane 3, 4, 5 is different from the second printed pattern DM2 on the outer surface 3.2, 4.2, 5.2 of this or another glass pane 3, 4 , 5 is formed.

The invention has been described above using an exemplary embodiment. It goes without saying that numerous changes are possible without departing from the inventive idea on which the invention is based.

Reference List

1

facade element

2

disk arrangement

3

glass pane

3.1

Inner surface

3.2

outer surface

4

glass pane

4.1

Inner surface

4.2

outer surface

5

glass pane

5.1

Inner surface

5.2

outer surface

6

grid

7

grid structure

8th

mid range

9

gaps

10

edge compound edging

A

outside

I

inside

DM1

first print pattern

DM2

second print pattern

DD

coverage density

D

diameter

D1...D3

diameter

M

Focus

G

energy transmittance

P1...P3

segment point

KA1...KA3

circle sections

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

• WO 2010/127702 A1 [0006]
• DE 69707396 T2 [0008]

Claims (20)

Façade element (1) with a pane arrangement (2) comprising one or more glass panes (3, 4, 5) arranged parallel to one another, with at least one inner surface (3.1, 4.1, 5.1) of at least one glass pane (3, 4, 5) covering the surface with a first print pattern (DM1) and at least one outer surface (3.2, 4.2, 5.2) of this or another glass pane (3, 4, 5) is printed over the entire area with a second print pattern (DM2), and depending on the design of the first and second Print pattern (DM1, DM2) the transmission and / or reflection properties of the disc assembly (2) are adjustable. Facade element (1) after claim 1 , characterized in that the first and / or second print pattern (DM1, DM2) with different scalable coverage densities (DD) can be formed, which are preferably variably adjustable from 0% to 100%. Facade element (1) after claim 1 or 2 , characterized in that the transmission and/or reflection properties of the facade element (1) can be set parametrically by means of the different coverage densities (DD) of the first and/or second print pattern (DM1, DM2). Facade element (1) according to one of the preceding claims, characterized in that the respective first and/or second printed pattern (DM1, DM2) is provided at least partially, preferably over the entire surface, on the corresponding glass pane (3, 4, 5). Façade element (1) according to one of the preceding claims, characterized in that the first and/or second printed pattern (DM1, DM2) is produced by means of digital printing or screen printing. Facade element (1) according to one of the preceding claims, characterized in that a hexagonal grid (6) is provided to form a uniform grid structure (7) as the basic shape for the first and second printed pattern (DM1, DM2). Façade element (1) according to one of the preceding claims, characterized in that the common grid structure (7) for the first and second print pattern (DM1, DM2) is formed by a plurality of hexagonal grids (6) lying in contact with one another, with preferably all hexagonal grids ( 6) are identical to each other. Façade element (1) according to one of the preceding claims, characterized in that the hexagonal grid (6) has a free, circular central area (8) in the center, which is provided for the first and/or second printed pattern (DM1, DM2). Façade element (1) according to one of the preceding claims, characterized in that the hexagonal grid (6) is part or component part of the printed first and/or second printed pattern (DM1, DM2). Facade element (1) according to one of the preceding claims, characterized in that the first and/or second printed pattern (DM1, DM2) is produced by intersecting the hexagonal grid (6) centrally with a printed circular area of a definable diameter (D). Facade element (1) after claim 10 , characterized in that the parametrically scalable coverage density (DD) of the first and/or second print pattern (DM1, DM2) is generated via an adjustable diameter (D) of the respective printed circular area. Facade element (1) according to one of the preceding claims, characterized in that the first and/or second printed pattern (DM1, DM2) is formed by three printed circle sections (KA1...KA3), the three circle sections (KA1...KA3 ) are provided completely in the free central area (8) of the grid (6) in such a way that the free circular central area (8) of the grid (6) is divided into three equal 60° segments. Facade element (1) after claim 12 , characterized in that three segment points (P1, P2, P3) of the three circle sections (KA1...KA3) define the respective start and end points of the circle segments which the printed first and/or second print pattern (DM1, DM2) in free Form the center area (8) of the grid (6). Facade element (1) according to one of the preceding Claims 12 or 13 , characterized in that by means of the first and/or second print pattern (DM1, DM2) two different fill types can be generated as printed circle segments. Facade element (1) according to one of the preceding Claims 12 until 14 , characterized in that the parametrically scalable coverage density (DD) of the first and/or second print pattern (DM1, DM2) is generated over a respectively adjustable diameter (D1...D3) for all three circular sections (KA1...KA3), where the respective set diameters are identical for all three circle sections (KA1...KA3). Façade element (1) according to one of the preceding claims, characterized in that the coverage density (DD) of the first and/or second print pattern (DM1, DM2) is parameterized as a function of a desired energy transmittance (g) for the façade element (1). Facade element (1) according to one of the preceding claims, characterized in that the transmission and/or reflection properties are angle-dependent, in particular dependent on the angle of incidence of the sunlight, by parameterizing the coverage densities (DD) of the first and/or second print pattern (DM1, DM2). the facade element (1), are adjustable. Facade element (1) according to any one of the preceding claims, characterized in that the first print pattern (DM1) according to one of Claims 10 until 11 and the second print pattern (DM2) according to any one of Claims 12 until 15 is trained. Facade element (1) according to one of the preceding Claims 1 until 17 , characterized in that the first print pattern (DM1) according to one of Claims 12 until 15 and the second print pattern (DM2) according to any one of Claims 10 until 11 is trained. Facade element (1) according to one of the preceding claims, characterized in that the first printed pattern (DM1) on the inner surface (3.1, 4.1, 5.1) of the at least one glass pane (3, 4, 5) is different from the second printed pattern (DM2). the outer surface (3.2, 4.2, 5.2) of this or another glass pane (3, 4, 5).

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