Display device

Abstract

having a display device (1) at least one layer of a carrier material (10), at least two plates (16) fixed to an inner side of the carrier material (10), on which light sources (14) can be contacted, and at least two light sources (14) which are attached to the plates (16), wherein at least on 50%, in particular on 75%, preferably substantially on all, of the plates (16) only a single light source (14) is arranged, characterized by a plug connection for the electrical connection of at least two display devices (1), wherein the plug connection comprises contact tabs firmly connected to the carrier material (10).

Description

[0001] The present invention relates to a display device comprising at least one layer of a carrier material, at least two plates fixed to an inner side of the carrier material on which light sources can be contacted, and at least two light sources which are attached to the plates.

[0002] Such display devices are generally known, with known display devices typically comprising plates on which a multitude of light sources are arranged. These plates can, for example, be designed as printed circuit boards (PCBs) on which light-emitting diodes (LEDs) are mounted. The LEDs represent luminous points (pixels) which, when viewed from the display device, represent, for example, text or a pattern.

[0003] A disadvantage of existing display devices is that the light sources cannot be freely arranged, or any desired arrangement is associated with considerable effort and expense. In particular, when using strip-shaped LED boards, it is generally impossible to create arbitrarily complex patterns. For this reason, existing display devices are currently only available in very few variations and are limited in size.

[0004] Alternatively, complex patterns can be created using a matrix-like arrangement of LEDs, with only the required LEDs being activated at any given time. However, the material costs for the large number of LEDs needed for this matrix-like arrangement are very high. While it is theoretically possible to create custom designs using large-area circuit boards, this requires a complete redesign of the board, particularly a completely new routing of the LEDs. Furthermore, the already expensive, large-area circuit boards can only be produced in very small quantities (or even as one-offs) when the LEDs are arranged individually, resulting in significant price disadvantages due to the high manufacturing costs.

[0005] For display devices, however, it is desirable to be able to create individual patterns in order to display, for example, lettering, symbols, diagrams, and objects over large areas. For this purpose, it is necessary that the light sources can be arranged individually and, for example, controlled individually and independently of each other.

[0006] German patent DE 39 000 417 A1 discloses a garment with integrated light sources. German patent DE 102 97 286 B4 relates to a lighting device in which a multitude of LEDs are mounted on individual fasteners and electrically connected by cables. Finally, US patent US 7 244 044 B2 discloses a light fixture with a multitude of LEDs protruding through bores in the fixture.

[0007] The object underlying the invention is to provide a display device that can be manufactured according to individual requirements.

[0008] This problem is solved by a display device having the features of claim 1.

[0009] According to claim 1, at least 50%, in particular 75%, preferably substantially all, of the plates are each fitted with only a single light source.

[0010] This means that at least 50% of the panels are designed to accommodate only one light source. The panels can be designed, for example, as circuit boards, particularly flexible circuit boards. Alternatively, the circuit boards can be formed by planar plastic bodies comprising at least two electrically conductive elements. The panels are fixed to the inside of the substrate material and preferably rest directly against it.

[0011] Manufacturing the display unit therefore requires a large number of plates or circuit boards, each with a single light source mounted on it. This allows the plates for each light source to be identical. Consequently, the plates can be produced in very large quantities and then, in a single, high-volume process, fitted with a single light source each, before being installed in the display unit. Due to the high production volume of plates with a single light source, the manufacturing and assembly costs for each plate are significantly reduced, making the display unit particularly economical to produce. This is especially true for large-area displays where the plates cover only a small portion of the display's surface. In this way, large and therefore expensive plates can be saved.

[0012] Thus, each plate contains exactly one light source, and each plate represents, for example, a single illuminated pixel of the display. Due to the separate design of the plates, they can be positioned at any location within the display. This allows for the creation of any desired lighting pattern without requiring any modifications to the plate and light source itself. Only the plate's position needs to be adjusted during the manufacturing process of the display.

[0013] Due to the flexible arrangement of the panels and thus the light sources, even complex structures such as lettering or symbols can be displayed on the display unit using illuminated pixels. The lettering and symbols can be customized by adjusting the position of the panels and light sources during the manufacturing process.

[0014] It is also possible to combine separate, individual panels, each with a single light source, with another type of panel, circuit board, or carrier containing multiple light sources. For example, mass-produced, strip-shaped circuit boards with LEDs can be integrated into the display device to represent lines using light points in the conventional manner.

[0015] Advantageous embodiments are specified in the description, the dependent claims and the drawings.

[0016] A light source mounted on a separate panel can be, for example, an LED, an organic light-emitting diode (OLED), or an electroluminescent film. Advantageously, multi-colored LEDs (e.g., RGB LEDs) can also be used as a single light source on the panels to emit different colors with individual pixels of the display device.

[0017] Advantageously, only one type of plate can be used in a display device, which can then be manufactured in particularly high quantities and is therefore particularly cost-effective.

[0018] If a display device is to use light sources that emit different colors, it is possible to mass-produce the panels for the light sources and then equip them with light sources for different colors or with RGB light sources (for example, RGB LEDs). This method also ensures cost-effective production of the display device.

[0019] According to a first advantageous embodiment, the substrate material has recesses, each adapted to the size of a single light source. The light sources thus emit light through the recesses and / or extend into and / or through the recesses. The plate is therefore attached to the inside of the substrate material, with the light source contacted on the plate projecting into the substrate material on the inside and oriented towards a visible side of the substrate material. An advantage of this is that there is essentially no absorption of light by the substrate material. The recesses are merely adapted to the light source; the plate on which the light source is attached can be substantially concealed by the substrate material. The use of recesses in the substrate material is particularly necessary for completely opaque substrate materials.

[0020] Alternatively, the plate can also be arranged on one side of the substrate, with the substrate having no recess for the light source. The light source can then be directed away from the side of the substrate and emit light away from the substrate. In this way, the display device can be used, for example, for the individual backlighting of surfaces. In particular, the backlit surface need not be rectangular and preferably forms a curved pattern or a letter.

[0021] According to another embodiment, all light sources of the display device are arranged on separate plates. Therefore, no other types of plates or light sources need to be considered during the manufacture of the display device.

[0022] Preferably, the display device comprises a light source that includes an LED die, which is preferably covered with silicone. During the manufacturing process, an LED die, i.e., the semiconductor element of an LED, is attached to the board and electrically contacted, for example, by bonding. The LED die is then encapsulated in a transparent silicone to protect it from damage and environmental influences. By using an LED die, the light source can be made smaller and flatter compared to conventional LEDs. For example, the LED die can be inserted into a specially designed recess in the board, which simultaneously holds and aligns the LED die.

[0023] Furthermore, unlike the epoxy resins commonly used in LEDs, silicone does not become cloudy over time due to the light emitted by the LED die. Alternatively, an epoxy resin, a polyurethane, or another translucent potting compound can be used instead of silicone.

[0024] Advantageously, a so-called flip chip can be used as the LED die, meaning an LED die whose semiconductor substrate can be directly applied or soldered onto a contact surface of the board. This eliminates the need for bonding the LED die.

[0025] According to a further advantageous embodiment of the invention, the substrate material has an internal moisture protection layer in the form of a transparent film. Particularly when the display device is used outdoors or in damp environments, the light source is protected from water and moisture ingress. The film can also be partially double-sided adhesive and positioned between the substrate material and the panels. This allows the film to attach the panels to the substrate material, with no adhesive being applied to the film in the area of ​​any recesses, thus preventing dirt from accumulating in these recesses.

[0026] Preferably, the panels and / or the light sources are electrically contacted by means of wires, wherein the wires have a diameter of less than 0.5 mm, in particular less than 0.2 mm, preferably less than 0.125 mm. Due to the use of such thin wires, the wires are not visible from the outside, even when using a thin and / or flexible substrate, such as wallpaper or canvas. The same applies to the use of a transparent substrate, where the thin wires are difficult to perceive with the naked eye.

[0027] The wires can be, for example, copper or aluminum wires, which in particular have an insulating layer. Alternatively, wires can be used which are preferably only uninsulated at their ends.

[0028] To enable the wires to span longer distances, the display device can include support plates or circuit boards to which the wires are mechanically and / or electrically connected. This increases the mechanical stability of the wires. Alternatively or additionally, during the manufacturing of the display device, the wires can be drawn through a hot-melt adhesive, for example, to insulate them and, in particular, to fix them to the substrate.

[0029] Alternatively, wires surrounded by an insulating layer can be used, whereby the insulating layer can be removed, for example, by a microflame or a laser. The insulated wires can also be attached to the contact pads of the boards by soldering or welding, whereby the insulating layer is removed simultaneously, and the soldering or welding can be performed by a laser.

[0030] Using wires for contacting the display offers the advantage of allowing for individual wiring of the display's light sources. Furthermore, wires are significantly more cost-effective, especially over long distances, than, for example, the use of circuit boards. In the production of custom-made display units, the use of wires allows for individual design by first arranging the boards at the positions where a luminous pixel is required. These positions can vary from display unit to display unit. The use of wires enables simple and quick contacting of the board's contact surfaces, regardless of the board's position.

[0031] For example, each panel can be connected with separate wires, allowing each light source to be switched individually. Alternatively, the wires can be laid out so that the lights can be switched on and off in groups. Another option for individual control of the lights is a digital data bus, which allows the brightness and / or color temperature of the light source on each panel to be set. For this purpose, the light source or the panel can also include a logic circuit and / or a microprocessor.

[0032] Preferably, a light source is arranged on one side of the plate, and the plate comprises at least two contact surfaces on a second side, which are electrically connected to the light source. The light source can emit light on the front side of the plate and can be supplied with electrical energy via the wires connected to the contact surfaces on the back side of the plate. If, for example, RGB LEDs are used as the light source, two additional contact surfaces, and thus a total of at least four contact surfaces, can be provided on the second side of the plate. Alternatively, the color information can be transmitted digitally, which reduces the number of contact surfaces to two.

[0033] Alternatively, it is also possible to provide one contact surface on the first side and one contact surface on the second side of the plate.

[0034] According to the invention, a plug connection is provided for the electrical connection of at least two display devices. In this way, several display devices can be operated, for example, adjacent to or next to each other, thereby increasing the surface area of ​​the display device. Connecting the display devices to each other eliminates the need for a separate power supply or control unit for each display device.

[0035] According to a first alternative of the invention, the connector comprises contact tabs firmly bonded to the carrier material. The contact tabs can, for example, be arranged in a two- or multi-pole connector that engages in a socket of another display device, thereby electrically connecting the display devices. For example, in the case of square or rectangular display devices, the contact tabs can be arranged at one or more predetermined locations on the exterior of all display devices. This allows the display devices to be combined in any desired configuration by arranging them side by side in a tile-like fashion.

[0036] According to a non-inventive alternative, the connector is flexibly connected to the carrier material, in particular by means of a flexible cable. This allows for more possibilities in arranging the display devices, since they do not have to be arranged directly adjacent to each other, but can, for example, be spatially offset.

[0037] Preferably, the substrate material comprises a sheet metal panel and / or a metal plate and / or a facade cladding. This allows the display device to be integrated into traffic signs and the like, ensuring good visibility in poor lighting conditions or at night. The display device can also serve as a design or informational element in escalators by being integrated into the side cladding.

[0038] The display device can also be mounted on building facades to illuminate large-scale lettering, symbols, and the like, thus utilizing the facade as a design element or advertising space. Suitable substrate materials for facades include, for example, metallic facade elements, facade panels, or facade stones.

[0039] Particularly when using metallic or conductive materials as a substrate, the plates supporting the light sources are designed in such a way that no exposed electrical contacts are arranged on the side of the plates that rests against the substrate.

[0040] Advantageously, the substrate material comprises wallpaper and / or tile and / or melamine resin board and / or CPL board and / or HPL board and / or veneer and / or furniture front and / or door and / or canvas and / or non-woven fabric and / or tarpaulin and / or paper and / or cardboard and / or leather and / or foil. Thus, the display device can show information and / or patterns and the like on a variety of surfaces, such as furniture surfaces and doors. By using panels with individual light sources, the patterns displayed by the light sources can be individually positioned during manufacturing. This allows, for example, furniture to be manufactured according to customer specifications.

[0041] If a flexible substrate material is used, the display device can be flexibly designed in almost any three-dimensional shape. For example, leather as a substrate material allows the display device to be integrated into a handbag or garment, enabling the manufacturer's brand to be displayed brightly on the handbag, for instance.

[0042] According to a further advantageous embodiment, the substrate material comprises glass and / or a mirror. The display device can thus, for example, project patterns onto a glass surface, such as a shop window. Particularly through the use of very thin wires, only the luminous pixels formed by the light sources on the panels are visible. When a mirror is used as the substrate material, the reflective coating can be removed in the areas where the light sources are located.

[0043] The invention further relates to a method for manufacturing the display device described herein, which comprises at least one layer of a carrier material, at least two plates abutting an inner side of the carrier material on which light sources can be contacted, and at least two light sources attached to the plates, wherein at least 50%, in particular 75%, preferably substantially all, of the plates are each fitted with only a single light source, wherein the method comprises arranging the plates on the carrier material, electrically contacting the plates by means of wires, wherein the wires have a diameter of less than 0.5 mm, in particular less than 0.2 mm, preferably less than 0.125 mm, and at least one of the method steps being carried out automatically.

[0044] According to the invention, the wires are arranged automatically and electrically connected to the plates by soldering or micro-welding.

[0045] The aforementioned advantages and further developments of the display device according to the invention apply accordingly to the method according to the invention.

[0046] Advantageously, the process is carried out on an X-table, with the substrate material being transported along one direction by the X-table. Machines that can move in the X, Y, and Z directions can be arranged on the X-table, performing tasks such as placing the panels and light sources, laying the wires, and / or perforating the substrate material.

[0047] Alternatively, the process is carried out on an XY table, wherein the XY table in particular has a width greater than 0.6 m. The use of such an XY table is advantageous if the display device is designed to be flexible, for example as a strip of wallpaper. Such a width corresponds to a conventional width of wallpaper strips, so that the display device produced with the inventive method, made of paper as a substrate, is "compatible" with conventional wallpaper strips and can, for example, be used in conjunction with conventional wallpaper.

[0048] The XY table should be as long as possible to cover the largest possible area for each display unit produced. For example, the XY table could be 5 or 10 meters long. This reduces the manufacturing costs per unit area of ​​the display unit. Another advantage of using an XY table is that even rigid, inflexible materials can be used to create a luminous display unit on it.

[0049] According to a further advantageous embodiment, the wires are arranged by means of a bonder and electrically connected to the plates. The bonder can be moved from its own XY table and apply the wires to bonding surfaces of the plates.

[0050] Alternatively, the wires can be electrically connected to the plates by soldering. The additional material applied during soldering allows for a particularly robust mechanical connection between the plate and the wire.

[0051] Alternatively, the wires can also be electrically connected to the plates using micro-welding. Micro-welding has the advantage of reducing the time required to connect a wire to a plate compared to, for example, bonding. Furthermore, micro-welding allows the wire to be stripped of its insulating layer in the same process step. Micro-welding includes, for example, thermocompression welding.

[0052] According to another advantageous embodiment, the wires are automatically and selectively insulated and / or stripped.

[0053] According to a further embodiment, the plates are made of a flexible material and have, in particular, a thickness of less than 250 µm, preferably 150 µm, and / or a diameter of less than 20 mm, preferably less than 10 mm. By using a flexible material for the plate, the entire display device can also be flexible (e.g., rollable), which can be particularly advantageous when transporting the display device in roll form or when applying the display device to a wall by unrolling.

[0054] Furthermore, due to the thinness of the plates (less than 100 µm), the display device is only minimally thickened where the plates are located when using a flexible substrate. Particularly when designing the display device as luminous wallpaper, the thinnest possible plates are necessary to prevent them from pressing through the typically very thin wallpaper material.

[0055] Furthermore, designing the panel with the smallest possible surface area can be advantageous. For example, panels with a diameter of less than 15 mm require only a small surface area for each required light point and thus for each light source, thereby reducing panel costs. Additionally, smaller panels allow the light sources and thus the pixels to be positioned closer together, enabling the display to show finer illuminated structures, such as lettering.

[0056] According to a further embodiment, each plate with an attached light source has a maximum installation height of less than 3 mm, in particular less than 1 mm. In this way, the light sources do not protrude even from a thin substrate material.

[0057] According to a further embodiment, a layer of retaining material is provided, at least partially applied, with the plates arranged between the carrier material and the retaining material. The retaining material can be formed, for example, by hot-melt adhesive dots applied to the plates or by a fleece material applied over a flat area. The retaining material allows the plates and the cables to be enclosed between the two material layers (i.e., the carrier material and the retaining material) and thus protected from damage.

[0058] Alternatively and / or in addition to the mounting material, the panels and / or the light sources can have a protective coating, which protects the panels and light sources, for example, from the effects of moisture or, in the case of the design of the display device as wallpaper, from wallpaper paste.

[0059] Advantageously, the substrate material is perforated before the panels are arranged, precisely where the light sources will be positioned. The resulting recess in the substrate material can be created, for example, by punching or drilling.

[0060] According to a preferred embodiment, the plates are coated with adhesive before being arranged on the substrate, particularly on the side that will rest on the substrate. The plates thus form an adhesive bond with the substrate, preventing them from shifting during the subsequent process and facilitating easier contact with the conductors or bond wires. Furthermore, the adhesive bond ensures a permanent and secure connection between the substrate and the plates.

[0061] According to another embodiment, a leveling material is applied to the substrate, which has recesses for the plates and / or cables. This results in a uniform thickness for the display device, so that the plates and cables are not visible when looking down at the substrate. For example, a sheet-like leveling material is used that is double-sided self-adhesive, making it easy to process and apply, and also securing any layer of adhesive material that may be applied to the substrate. Alternatively, a liquid leveling material (e.g., silicone or a polymer) can be used, which is poured over the substrate, the plates, and the cables. Due to the surface tension of the liquid leveling material, any height differences caused by the plates and cables can be compensated for automatically.When dried, the originally liquid leveling material can form a flexible but flat leveling layer.

[0062] The production of a custom-made illuminated display device can thus be carried out in several steps. First, a substrate material, for example, a sheet of metal used for facade cladding measuring 0.6 m x 5 m, can be placed on an XY table with its visible side resting on the table. Then, a punching head can be moved across the back of the sheet using the XY table to create perforations at the positions of the desired illuminated points. The illuminated points then trace the desired illuminated pattern.

[0063] In the next step, flexible printed circuit boards (PCBs) with a diameter of 10 mm and a thickness of 150 µm, each with an LED on one side, are coated with adhesive around the LED. The PCBs are then positioned onto the metal sheet by a "pick and place" arm, which moves along an XY table, ensuring the LEDs are positioned in the pre-perforated recesses and the adhesive bonds them to the sheet. The bonder can then be used to electrically connect the flexible PCBs, with all connecting wires converging on a terminal board, which may include terminals. The LEDs of the display can then be controlled and powered via standard cables connected to the terminals on the terminal board.

[0064] At the end of the manufacturing process, a leveling material and a nonwoven fabric can be applied as a holding material, thus sealing the illuminated display device on both sides. This allows for the rapid and cost-effective production of a large-area, point-illuminated display device that can be adapted to individual requirements.

[0065] The present invention will now be described purely by way of example with reference to the accompanying drawings. These show: Fig. 1 (a) an exploded view of a display device according to the invention and (b) an isometric view of the display device according to the invention. Fig. 1a; Fig. 2 a further embodiment of the display device according to the invention in top view; and Fig. 3 (a) a side view of a display device with bond wires contacted on a plate and (b) bond wires contacted directly on a light source.

[0066] Fig. Figure 1a shows a display device according to the invention, which in this embodiment is designed as a luminous wallpaper 1. The wallpaper 1 comprises a carrier material 10, which is formed, for example, by a strip of wallpaper. Recesses 12 are provided in the carrier material 10, in which light-emitting diodes 14 are placed.

[0067] On the inside of the carrier material 10, a moisture-protective film (not shown) made of a thin, transparent plastic material can be additionally affixed, which protects the LEDs 14 from moisture. When the LEDs 14 are inserted into the recesses 12, the moisture-protective film conforms to the LEDs 14 and thus curves into the recesses 12. However, the following description will focus on a display device without a moisture-protective film.

[0068] The LEDs 14 are soldered to plates, which are designed as flexible circuit boards 16. On one side opposite the LEDs, the circuit boards 16 have four connection pads 18, which are in electrical contact with the LEDs 14. An adhesive layer 20 is arranged around the LEDs 14 on the circuit boards 16, bonding the circuit boards 16 to the substrate 10.

[0069] Fig. 1b shows the wallpaper of Fig. 1a in the assembled state, wherein the connection pads 18 of the circuit boards 16 are connected by wires 22. The wires 22 are applied to the connection pads 18 by micro-welding. Two connection pads 18 are electrically connected to each other, so that one wire 22 is connected to each connection pad 18, thus enabling a parallel or series connection of the LEDs 14.

[0070] Fig. Figure 2 shows a further embodiment of the wallpaper 1 according to the invention in a top view, wherein a plurality of light-emitting diodes 14 are visible through the wallpaper 1. The light-emitting diodes 14 represent the letters “A” and “m”. The circuit boards 16 are in Fig. 2 not shown. The path of four wires 22 between each pair of LEDs 14 is shown as an example. It is understood that the wires 22 are usually not visible when looking down at the wallpaper 1. A first pair of wires 22a, 22b is laid along the shortest path between the LEDs 14a, 14b, thus requiring only a short length of wires 22a, 22b.

[0071] Alternatively, a second pair of wires 22c, 22d is arranged serpentinely between two light-emitting diodes 14c, 14d, which can result in a certain degree of flexibility of the wires 22c, 22d relative to the substrate material 10, which may be necessary, especially with flexible substrate materials 10. Furthermore, it is also possible to arrange several wires 22 in parallel in order to operate the light-emitting diodes 14 with higher currents.

[0072] A contact board 24 is arranged in a lower area of ​​the wallpaper 1, on which (not shown) wires 22 can be connected to supply the light-emitting diodes 14 of the wallpaper 1 with electrical energy. The contact board 24 can, for example, be arranged behind a baseboard.

[0073] A light-emitting diode 14e is also connected to wires 22e that run in a blind pattern. The wires 22e radiate from the light-emitting diode 14e in a star-shaped configuration. This allows the wires 22e to efficiently dissipate heat generated by the light-emitting diode 14e to the surroundings.

[0074] In Fig. Figure 3 shows two possible connection options for the LEDs 14. This shows Fig. 3a A light-emitting diode 14 arranged in the carrier material 10, which is in electrical contact with a circuit board 16. Two wires 22 are welded to the circuit board 16. In Fig. Figure 3a also shows a holding material 26, which is applied to the carrier material 10 in a direction indicated by arrows. When the holding material 26 and the carrier material 10 are in contact, the circuit boards 16 and the wires 22 are additionally fixed by the holding material 26 and run directly along the carrier material 10.

[0075] Alternatively, according to Fig. 3b the wires 22 can also be connected directly to the light-emitting diode 14 by connecting the wires 22 directly to the terminals or contacts of the light-emitting diode 14. Reference symbol list 1 wallpaper 10 Carrier material 12 recesses 14, 14a, 14b, 14c, 14d, 14e Light-emitting diode 16 circuit boards 18 connection pads 20 adhesive layers 22, 22a, 22b, 22c, 22d, 22e wire 24-contact circuit board 26 Holding material

Claims

[1] Display device (1) having at least one layer of a carrier material (10), at least two plates (16) fixed to an inner side of the carrier material (10), on which light sources (14) can be contacted, and at least two light sources (14) which are attached to the plates (16), wherein at least on 50%, in particular on 75%, preferably substantially on all, of the plates (16) only a single light source (14) is arranged, characterized by a plug connection for the electrical connection of at least two display devices (1), wherein the plug connection comprises contact tabs firmly connected to the carrier material (10). [2] Display device (1) according to claim 1, characterized by , that the carrier material (10) has recesses (12) which are each adapted to the size of a single light source (14). [3] Display device (1) according to claim 1 or 2, characterized by Light source (14) comprising an LED die, which is in particular covered with silicone. [4] Display device (1) according to any one of the preceding claims, characterized by , that the carrier material (10) has an internal moisture protection in the form of a transparent film. [5] Display device (1) according to claim 4, characterized by that the plates (16) and / or the light sources (14) are electrically contacted by means of wires (22), wherein the wires (22) have a diameter of less than 0.5 mm, in particular less than 0.2 mm, preferably less than 0.125 mm. [6] Display device (1) according to any one of the preceding claims, characterized by , that the carrier material (10) comprises a sheet and / or a metal plate and / or a facade cladding. [7] Display device (1) according to any one of claims 1 to 5, characterized by, that the substrate material (10) comprises wallpaper and / or tile and / or melamine resin board and / or CPL board and / or HPL board and / or veneer and / or furniture front and / or door and / or canvas and / or non-woven fabric and / or tarpaulin and / or paper and / or cardboard and / or leather and / or foil. [8] Display device (1) according to any one of claims 1 to 5, characterized by , that the support material (10) comprises a glass and / or a mirror. [9] Method for manufacturing a display device (1) according to any one of claims 1 to 8, which at least one layer of a carrier material (10), at least two plates (16) fixed to an inner side of the substrate material, on which light sources (14) can be contacted, and has at least two light sources (14) which are attached to the plates (16), wherein at least on 50%, in particular on 75%, preferably substantially on all, of the plates (16) only a single light source (14) is arranged, wherein the procedure includes the following: the plates (16) are arranged on the support material (10), the plates (16) are electrically contacted by means of wires (22), wherein the wires (22) have a diameter of less than 0.5 mm, in particular less than 0.2 mm, preferably less than 0.125 mm, and at least one process step is carried out automatically, wherein the wires (22) are arranged automatically and electrically connected to the plates (16) by soldering or by micro-welding. [10] Method according to claim 9, characterized by , that the wires (22) are arranged by means of a bonder and electrically connected to the plates (16).

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