Surface structure for a motor vehicle interior

A multi-layered sheet-like structure with integrated functional layers addresses the need for enhanced vehicle interior systems by offering customizable light control, information display, and additional features, improving comfort and safety, and maintaining structural integrity.

DE102022212763B4Active Publication Date: 2025-07-03BOS GMBH & CO KG
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Patent Information

Application Number
DE102022212763
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Priority Date
2021-12-14
Filing Date
2022-11-29
Publication Date
2025-07-03
Estimated Expiration
2042-11-29

AI Technical Summary

Technical Problem

Existing vehicle interior structures lack a versatile and efficient system that integrates multiple functional layers for enhanced comfort, infotainment, safety, and aesthetic appeal, while providing light protection and user interaction.

Method used

A multi-layered sheet-like structure with a transparent, dimensionally stable support and functional layers, including light protection, information display, input, heat, sound, and absorption capabilities, controlled by an integrated system, and optionally featuring a metal grid for added stability and functionality.

Benefits of technology

The solution provides a comprehensive interior solution that enhances user experience through customizable light control, information display, user interaction, and additional features like heating, sound management, and protection, while maintaining structural integrity and aesthetic appeal.

✦ Generated by Eureka AI based on patent content.

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Abstract

A sheet-like structure (1) for a motor vehicle interior, comprising a translucent and dimensionally stable support structure (2) and a multi-layer functional layer structure (F) supported by the support structure (2) and extending over a surface, wherein the functional layer structure (F) has a light protection functional layer (3) which can be electrically controlled between different light-transmitting states to protect the motor vehicle interior from incident light, and at least one further functional layer (4, 5, 6, 7, 8, 9, 11), wherein an information functional layer (4) is present and is designed to display variable information (I), characterized in that the information functional layer (4) has an LED display (41) which can be folded relative to the support structure (2) between different positions about a folding axis.
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Description

[0001] The invention relates to a surface structure for a motor vehicle interior.

[0002] Vehicle interiors are often equipped with fabrics for shading, covering, or partitioning. For example, flexible fabrics in the form of roller blinds for shading side and rear windows, as well as glass roofs, have long been known.

[0003] US 2020 / 0298674 A1 discloses a sheet-like structure for a motor vehicle interior. The known sheet-like structure comprises a supporting structure and a functional layer structure. The supporting structure is translucent and dimensionally stable. The functional layer structure is extended over a large area, supported by the supporting structure, and comprises a PDLC film that can be electrically controlled between different light-transmitting states. The functional layer structure of the known sheet-like structure also allows for the display of graphic information.

[0004] The object of the invention is to provide a surface structure of the type mentioned at the outset which offers advantages over the prior art and in particular has an extended range of functions.

[0005] This object is achieved by a sheet-like structure having the features of claim 1.

[0006] The sheet-like structure according to the invention has a transparent and dimensionally stable support structure and a multi-layer functional layer structure supported by the support structure and extending over a surface, wherein the functional layer structure has a light protection functional layer which can be electrically controlled between different light-transmitting states to protect the motor vehicle interior from incident light, and at least one further functional layer.

[0007] The supporting structure serves to support and / or stiffen the multi-layer functional layer structure. For this purpose, the supporting structure is dimensionally stable. This dimensional stability can be achieved through appropriate material selection and / or suitable shaping. The supporting structure is also translucent. For this purpose, the supporting structure can be made of a translucent material. Alternatively or additionally, the supporting structure can have a translucent shape. For example, the supporting structure can be manufactured in the form of a frame with a frame opening.

[0008] The light-protection layer can optionally darken and / or shade the vehicle interior. For this purpose, the light-protection layer can be electrically controlled and / or switched between different light-transmitting states. At least two different states are provided, for example, a completely transparent state and a completely opaque state. It is also conceivable and possible for the different light-transmitting states to allow for stepwise, gradual, or continuous darkening and / or shading of the vehicle interior. The light-protection layer preferably has electrochromic and / or thermochromic properties.

[0009] The functional layer structure comprises in particular the light protection functional layer and the at least one further functional layer. The at least one further functional layer has at least one further function. The invention is based on the recognition that modern motor vehicles must meet constantly increasing user expectations. This applies in particular to the equipment of the motor vehicle interior and the users' expectations in terms of comfort, infotainment, safety and the like. The function of the further functional layer differs in different embodiments and can be, for example, a comfort, infotainment and / or safety function. In one embodiment, the said function of the at least one further functional layer is electrically switchable and / or controllable. In a further embodiment, the function is not switchable and / or controllable and, in other words, is static and / or always present.In one embodiment, the functional layer structure does not have a light-protection functional layer. In one embodiment, the functional layer structure is not dimensionally stable in itself or is at least less dimensionally stable than the supporting structure. In one embodiment, the functional layer structure is flexible and / or limp in itself. The individual layers of the functional layer structure are each designed as a layer, ply and / or film. The individual layers of the functional layer structure are each extended flatly and, in particular, arranged congruently, one above the other. In one embodiment, the functional layer structure is connected to a control device which is designed to control the said functions. The control device can be assigned to the sheet-like structure, a higher-level module or a motor vehicle which is intended to be equipped with the sheet-like structure.

[0010] In an embodiment of the invention, the support structure comprises a pane made of a translucent material, to which the functional layer structure is applied. The pane is preferably made of glass or another dimensionally stable and translucent material. For example, the pane can be made of polycarbonate, Plexiglas or polymethyl methacrylate (PMMA). The functional layer structure is applied to the pane using a suitable method. For example, the functional layer structure can be glued to the pane. For this purpose, an adhesive bonding method can be used, in particular hot bonding and / or chemical bonding. Alternatively or additionally, the support structure has a support frame in which the functional layer structure is enclosed all around. The support frame is made of a dimensionally stable material, preferably metal and / or plastic.The support frame preferably has a multi-part, in particular two-part, design, wherein the functional layer structure is held and simultaneously tensioned between the parts of the support frame, for example by a clamping force. The multi-part frame preferably has several mutually corresponding profiles or frame parts, between which the individual layers of the functional layer structure are held and simultaneously tensioned. Alternatively or additionally, the functional layer structure can be overmolded and / or foamed to form the holder in the support frame. This can be done, for example, by means of an insert injection molding process and / or a foaming process, preferably with polyurethane foam.

[0011] In a further embodiment of the invention, the light-protection functional layer comprises an electrically switchable film with electrochromic properties, in particular a PDLC film and / or an SPD film. PDLC (Polymer Dispersed Liquid Crystal) and SPD (Suspended Particle Device) films are known as such and have proven particularly advantageous for the present application. The electrically switchable film changes its light-transmitting properties when subjected to an electrical voltage and is thus electrically controllable between the aforementioned different light-transmitting states. For this purpose, the electrically switchable film can be connected to the aforementioned control device and / or an electrical system of the motor vehicle.

[0012] Further according to the invention, an information function layer is provided and configured to display variable information. The information function layer functions at least as a display and / or projection surface. The variable information can, for example, be information from an infotainment system of the motor vehicle. For this purpose, the information function layer is preferably connected at least indirectly to the infotainment system. Alternatively or additionally, the information function layer can be configured for at least indirect coupling to a smartphone, a tablet, and / or similar portable devices. In this way, information accessible via the aforementioned devices can be "mirrored" onto the information function layer.The information displayed via the information function layer can alternatively or additionally serve optical purposes, for example, to create a specific ambience in the vehicle interior. The information displayed via the information function layer can alternatively or additionally serve lighting-related purposes, for example, by reproducing light with a corresponding brightness. In this way, the information function layer can function as a lighting function layer.

[0013] Further according to the invention, the information functional layer comprises an LED display, preferably in the form of an OLED film. The LED display is preferably flexible and / or bendable and, for this purpose, is designed as a film. Particular advantages can be achieved by using an OLED film as the information functional layer.

[0014] Furthermore, according to the invention, the LED display is foldable relative to the support structure between different positions about a folding axis. Due to the mobility in the different positions, the user can change the position of the LED display, thereby improving the readability of the changing information. Preferably, in this embodiment of the invention, the LED display is attached to a support and / or has such a support. The support is relatively movable, or more precisely: foldable, and is hinged to the support structure. LED displays, in particular OLED films, are often only available prefabricated in certain sizes at low cost on the market. While customized sizes are possible in principle, they are associated with increased costs. This design can therefore not only achieve better readability but also a cost advantage.

[0015] In a further embodiment of the invention, an input function position is provided and configured for entering control commands. The input function position serves for interaction with the user. The control commands that can be entered via the input function position can, for example, relate to the various functions of the surface structure. Alternatively or additionally, control commands for controlling the infotainment system of the motor vehicle can be entered. In one embodiment of the invention, the input function position is integrated into the information function position, or vice versa.

[0016] In a further embodiment of the invention, the input function layer has a touch-sensitive input surface with an inductive, capacitive, and / or resistive operating principle. The input surface can also be referred to as a touch surface. The input function layer thus forms a type of touchscreen. This can be done, for example, in combination with the information function layer and / or its LED display or OLED film.

[0017] In a further embodiment of the invention, a heat functional layer is provided and configured to emit electrically generated radiant heat. The heat functional layer serves to improve comfort. To generate the radiant heat, the heat functional layer is preferably connected to the vehicle's electrical system. The emitted radiant heat can be used to heat the vehicle interior as needed. The heat functional layer is preferably made of a metallic and / or ceramic material.

[0018] In a further embodiment of the invention, the heat functional layer comprises an electric surface heating system. Surface heating systems offer particular advantages in terms of energy efficiency.

[0019] In a further embodiment of the invention, a sound function layer is provided and configured to emit sound signals. The sound signals emitted by the sound function layer can be acoustic signals from the motor vehicle's infotainment system, for example, speech, music, signal tones, warning tones, or the like. Alternatively or additionally, the sound signals can serve to reduce noise in the vehicle interior (noise cancellation).

[0020] In a further embodiment of the invention, the sound functional layer has an acoustic membrane.

[0021] In a further embodiment of the invention, an absorption functional layer is provided and configured to absorb mechanical environmental influences and / or electromagnetic environmental influences. The absorption functional layer thus has a protective function. For example, the absorption functional layer can serve as splinter protection (mechanical environmental influences) or eavesdropping protection (electromagnetic environmental influences / radiation influences). Alternatively or additionally, the absorption functional layer can be configured to absorb airborne or structure-borne sound.

[0022] In a further embodiment of the invention, a metal grid is assigned to the light protection functional layer, wherein the metal grid functions as an absorption functional layer and / or as a heat functional layer and / or as a supporting structure. In one embodiment, the metal grid is integrated into the light protection functional layer, for example, laminated or otherwise embedded in the light protection functional layer. In a further embodiment, the metal grid is applied to the light protection functional layer or vice versa. The metal grid can have different functions. For example, the metal grid can be designed to absorb mechanical, electromagnetic or other potentially harmful or undesirable environmental influences. Alternatively or additionally, the metal grid can be designed to emit electrically generated radiant heat. In this case, the metal grid acts as an electrical resistance heater and / or electrical surface heater.Alternatively or additionally, the metal grid can function as a supporting structure. In this case, the metal grid provides sufficient dimensional stability to the multi-layer functional layer structure. The metal grid can be present alternatively or in addition to the pane or the supporting frame according to the design described above.

[0023] In a further embodiment of the invention, a cover functional layer is provided and designed to cover the light protection functional layer and / or the at least one further functional layer in an opaque manner, at least in sections. The cover functional layer has, in particular, a covering function or ambience function. The covering and / or ambience function can impart a specific appearance and / or feel to the surface structure and thus also to the motor vehicle interior. Preferably, the cover functional layer is provided with several openings. The openings can be of different sizes and arranged regularly or irregularly. The underlying layers of the multi-layer functional layer structure can be viewed and / or manually reached through the openings.If the cover functional layer is provided with the aforementioned openings and positioned in front of the information functional layer, facing the vehicle interior, the impression of a starry sky can be created. Of course, different visual impressions can also be created for this purpose.

[0024] In a further embodiment of the invention, the functional cover layer is made of a textile material and / or leather. By selecting the appropriate material for the functional cover layer, the appearance and / or feel of the surface structure can be improved and easily adapted to the other properties of the vehicle interior.

[0025] The invention also relates to an arrangement comprising a sheet-like structure according to the preceding description and comprising a control device, wherein the control device is connected to the functional layer structure of the sheet-like structure and is configured to control at least one function of at least one of the functional layers of the functional layer structure.

[0026] In one embodiment, the control device is integrated into the sheet-like structure. In another embodiment, the control device is integrated into a higher-level module encompassing the sheet-like structure. In another embodiment, the control device is a central or decentralized control device of a motor vehicle intended to be equipped with the sheet-like structure.

[0027] The invention further relates to a door module for a motor vehicle door with a window opening, comprising a sheet-like structure according to the preceding description or an arrangement according to the preceding description, a movement device operatively connected to the sheet-like structure and configured to move the sheet-like structure between a stowed position, in which the sheet-like structure uncovers the window opening, and a functional position, in which the sheet-like structure covers the window opening. In the stowed position, the sheet-like structure is lowered vertically relative to the window opening by means of the movement device. Preferably, the sheet-like structure is completely lowered in the stowed position and thus hidden from the view of a user. In the functional position, the sheet-like structure is displaced vertically in front of the window opening and a corresponding window pane of the motor vehicle door.The movement device can have a guide device for movably guiding the sheet-like structure between the storage and functional positions. Alternatively or additionally, the movement device can have a drive device, for example a rope or cable drive, for driving the movement of the sheet-like structure between the storage and functional positions. If the sheet-like structure has a foldable LED display according to one of the preceding embodiments, its separate carrier is preferably designed such that the LED display is automatically folded onto the support structure in a space-saving manner when the sheet-like structure is moved into the storage position. The automatic folding can be supported and / or brought about by the design of the carrier and / or its articulation to the support structure.

[0028] The invention also relates to a motor vehicle with a sheet-like structure according to the preceding description and / or an arrangement according to the preceding description and / or a door module according to the preceding description.

[0029] Further advantages and features of the invention emerge from the claims and from the following description of preferred embodiments of the invention, which are illustrated with reference to the drawings. Fig. 1 shows a schematic perspective view of a section of a motor vehicle in the region of a motor vehicle door, which is equipped with an embodiment of a door module according to the invention, which is provided with an embodiment of a flat structure according to the invention, Fig. 2 a side view of the vehicle door after Fig. 1, wherein the sheet is shifted into a storage position, Fig. 3 the vehicle door according to the Fig. 1 and Fig. 2, wherein the surface structure is shifted into a functional position, Fig. 4 a schematically simplified, perspective exploded view of the surface structure with a supporting structure and a functional layer structure, Fig. 5 in a schematically simplified, perspective exploded view a variant of the surface structure according to Fig. 4, Fig. 6 a schematically simplified cross-sectional representation of the surface structure according to Fig. 4, whereby individual functional layers of the fabric are shown spaced apart from each other in the thickness direction of the fabric for better representation, Fig. 7 to 12 each show, in a schematically simplified cross-sectional representation, further functional layers which can be used alternatively or in addition to the Fig. 4 and Fig. 5 shown functional layers can be provided in the surface structure, and Fig. 13 in a schematic perspective view a light protection functional layer provided with a metal grid, which alternatively or in addition to the said functional layers in the surface structure according to the Fig. 4 and Fig. 5 may be provided.

[0030] According to Fig. 1, a motor vehicle door 100 has a window opening 101 and is intended to be equipped with a door module 10. The door module 10 can be factory-mounted on the motor vehicle door 100 in a manner known to those skilled in the art and, in the mounted state, is arranged vertically below the window opening 101.

[0031] The motor vehicle door 100 together with the door module 10 is part of a motor vehicle K, which is otherwise not shown in detail.

[0032] The motor vehicle door 100 shown is a rear side door of the motor vehicle K. The window opening 101 is accordingly a side window opening.

[0033] The door module 10 has a surface structure 1 which is Fig. 1 is almost completely sunk into a module housing of the door module 10, which is not further specified, and has a functional layer structure F which is described in more detail.

[0034] In addition, according to Fig. 1, a control device S is present, which interacts with the door module 10, more precisely: its flat structure 1, in a manner described in more detail below. The flat structure 1 and the control device S together form an arrangement not further described. The control device S can be structurally assigned to the door module 10 or to the higher-level motor vehicle K. For example, the control device S can be a central or decentralized control device of the motor vehicle K.

[0035] As can be seen from the Fig. 2 and Fig. 3, the sheet 1 is movable relative to the window opening 101 between a stowed position ( Fig. 2) and a functional position movable ( Fig. 3). In the stowed position, the sheet 1 is lowered vertically below the window opening 101, thus uncovering it. In the functional position, the sheet 1 is raised vertically upwards to cover and / or shade the window opening 101. It is understood that, in addition to the sheet 1, a window pane (not shown in detail) is provided for openably closing the window opening 101. The window pane and the sheet 1 are movable independently of one another for opening and closing, or covering and uncovering, the window opening 101. Preferably, said window pane is closed when the sheet 1 is moved into the functional position. This prevents the sheet 1 from being exposed to external influences such as moisture or the like.

[0036] To move the sheet-like structure 1, the door module 10 in this case also has a movement device 200. In the embodiment shown, the movement device 200 is designed as a cable drive. The specific functionality and design of the movement device are not essential to the present invention.

[0037] In an embodiment not shown in the figures, the sheet material is arranged in the area of a windscreen or a rear window or a glass roof of the motor vehicle instead of in the area of the rear side door. Alternatively, the sheet material can function as a partition between a rear compartment and a driver's compartment of the motor vehicle. Fig. 2 and Fig. 3, the mobility of the sheet-like structure may not be present in every embodiment. Particularly when arranged in the area of the windscreen or rear window, the sheet-like structure may be fixed in place. Against this background, the Fig. The arrangement of the surface structure in the area of the rear side door shown in Figures 1 to 3 is to be understood as purely exemplary and not restrictive.

[0038] In the embodiment shown, the sheet material 1 has a supporting structure 2 and a functional layer structure F ( Fig. 4).

[0039] The supporting structure 2 is transparent and dimensionally stable. Fig. In the embodiment shown in Figure 4, the support structure 2 is a pane 21 made of a translucent material. The pane 21 can be made, for example, of glass or another dimensionally stable but translucent material such as polycarbonate, Plexiglas, or polymethyl methacrylate (PMMA). The support structure 2 supports the aforementioned functional layer structure F. In the embodiment shown, the functional layer structure F is adhesively bonded to the pane 21. Adhesive bonding methods, thermal bonding methods, and / or chemical bonding methods known to those skilled in the art are suitable for bonding the functional layer structure F to the pane 21.

[0040] The functional layer structure F in the present case has a light protection functional layer 3 and a further functional layer in the form of an information functional layer 4. The individual layers of the functional layer structure F are each extended flatly and arranged one above the other in the thickness direction of the sheet-like structure 1.

[0041] The light protection functional layer 3 is designed to protect the motor vehicle interior from incident light and, for this purpose, is electrically controllable between different light-transmitting states. In the embodiment shown, the light protection functional layer 3 has an electrically switchable film 33 with electrochromic properties, which can be designed, for example, as a PDLC film 31 (Polymer Dispersed Liquid Crystal) or SPD film 32 (Suspended Particle Device). Electrically switchable films with electrochromic properties are known per se. To change the light-transmitting properties of the light protection functional layer 3, more precisely: the switchable film 33, the light protection functional layer 3 is connected to the control device S (see Fig. 1) and can be controlled by means of the latter. For example, the switchable film 33 can be supplied with an operating voltage between 48 V and 100 V AC and can thereby be controlled and / or switched. The voltage supply can be fed from an electrical system of the motor vehicle K. The interior of the motor vehicle K can be shaded against incoming light and / or, preferably completely, darkened by means of the light protection functional layer 3. In addition, it is conceivable and possible for the light protection functional layer 3 to serve as a so-called “privacy screen”, which allows the occupants of the motor vehicle K a view to the outside, while persons outside the motor vehicle K are denied a view to the inside.

[0042] The information function layer 4 is primarily designed to display variable information I ( Fig. 6). The variable information may, in particular, be information such as that provided, for example, by an infotainment system of the motor vehicle K. Alternatively or additionally, the information I may cause and / or generate a decorative surface or a light reproduction.

[0043] In the embodiment shown, the information function layer 4 has an LED display 41 in the form of an OLED film 42. To control the function of the information function layer 4, a connection to the control device S is present. In an embodiment not shown in the figures, the LED display is foldable relative to the support structure between different positions about a folding axis.

[0044] Fig. 5 shows a fabric 1' as a variant of the fabric 1 according to Fig. 4. The sheet-like structure 1' differs from the sheet-like structure 1 only in a different design of the supporting structure. In the sheet-like structure 1', the supporting structure has a supporting frame 22 with a first frame profile P1 and a second frame profile P2. The supporting frame 22 defines a frame opening (not further designated) into which the functional layer structure F is inserted. In particular, the functional layer structure F is held and clamped between the frame profiles P1, P2 of the supporting frame 22. The frame profiles P1, P2 can, for example, be latched or clamped together in order to apply a corresponding clamping and holding force to the functional layer structure F. Alternatively or additionally, an overmolding or foam coating can be present to fix the functional layer structure to the supporting frame 22.

[0045] The one based on the Fig. 4, Fig. 5 and 6 is to be understood as purely exemplary with regard to the included functional layers 3, 4 and their respective functions. In different embodiments, the functional layer structure F has, alternatively or in addition to the light protection functional layer 3 and / or the information functional layer 4, different functional layers, as can be seen by way of example from the Fig. 7 to 12. The fabric can therefore have additional functions as an alternative or in addition to the light protection function and the display function. Fig. Figures 7 to 12 show exemplary further functional layers with different functions, specifically an input functional layer 5, a thermal functional layer 6, a sound functional layer 7, an absorption functional layer 8, a covering functional layer 9, and a generic functional layer 11. The aforementioned functional layers 5, 6, 7, 8, 9, 11, as well as 3 and 4, can be present individually or in combination with one another in the sheet-like structure. Furthermore, it is conceivable and possible for different functional layers and their functions to be integrated into a common layer and / or layer.

[0046] The input function layer 5 is provided for entering control commands B and for this purpose has a touch-sensitive input surface 51. In the embodiment shown, the input surface 51 operates using an inductive, capacitive, and / or resistive operating principle. The input function layer 5 can also be referred to as a touch foil. The input function layer 5 and the information function layer 4 can be combined into a common functional layer, thus forming a touchscreen. The input function layer 5 allows a user to interact with the surface structure 1, wherein the inputtable control commands B can be provided, for example, for controlling an infotainment system of the motor vehicle K or for controlling the various functions of the surface structure 1.

[0047] The heat functional layer 6 is configured to emit electrically generated radiant heat W. The heat functional layer 6 primarily serves to improve comfort. The emittable radiant heat W heats the motor vehicle interior. If the motor vehicle K has a separate heating device, the heat functional layer 6 serves to support said heating device. In the embodiment shown, the heat functional layer 6 has an electric surface heater 61. The electric surface heater 61 can be made of a suitable material, for example, a metallic or ceramic material.

[0048] The sound function layer 7 is used to emit sound signals N into the vehicle interior. The sound signals N can, for example, be speech and / or music playback, as well as the playback of warning or signal tones. Alternatively or additionally, the sound signals N can serve a so-called "noise canceling" function. In such a "noise canceling" function, unwanted noise is counteracted by emitting acoustically opposing sound signals.

[0049] In the embodiment shown, the sound functional layer 7 has an acoustic membrane 71. The acoustic membrane 71 is made of a material suitable for acoustic purposes and, in this case, can be controlled by the control device S to emit the sound signals N.

[0050] The absorption layer 8 is designed to absorb mechanical environmental influences U and / or electromagnetic environmental influences E. The absorption layer 8 serves, for example, as a splinter protection. Alternatively or additionally, the absorption layer 8 serves as an anti-eavesdropping protection in the sense of an EMC surface.

[0051] The cover functional layer 9 is designed to cover the light protection functional layer 3 and / or at least one of the other functional layers described above in an opaque manner, at least in sections. The cover functional layer 9 is preferably arranged as the uppermost layer of the functional layer structure F facing the vehicle interior. The cover functional layer 9 primarily serves to improve the feel and / or appearance of the sheet-like structure 1. In the embodiment shown, the cover functional layer is made of a textile material 91 and / or leather 92. Of course, different materials are also conceivable and possible for this purpose.

[0052] If the cover functional layer 9 is combined with the display functional layer 4 and / or the light protection functional layer 3, the cover functional layer 9 preferably has openings (not shown in detail). Said openings can have different diameters and be arranged regularly or irregularly. In combination with the light protection functional layer 3 and / or the display functional layer 4, said perforation can create a visual impression in the form of a starry sky. Of course, different visual impressions are also conceivable and possible for this purpose and can be created through appropriate design and arrangement of the openings.

[0053] The generic functional layer 11 has a further generic function, which can preferably be controlled by means of an activation via the control device S.

[0054] Based on Fig.13 shows a further variant in which the light-protection functional layer 3 of the sheet-like structure 1 is provided with a metal grid G. The metal grid G can have different functions. In the embodiment shown, the metal grid G serves to shape and stabilize the light-protection functional layer 3 and thus the entire functional layer structure F. Alternatively or additionally, the metal grid G can function as an absorption functional layer, a heat functional layer and / or a supporting structure. In this case, the metal grid G serves in particular to protect people, for example from splinters. In addition, burglary protection and protection against vandalism can be provided, since, for example, the pane 21 can break in the event of vandalism, but the metal grid G cannot. In addition, the overall visual impression of the sheet-like structure can be changed by patterns or embossings introduced into the metal grid G.

[0055] The metal grid G is particularly advantageous when the individual layers of the functional layer structure F are inherently unstable and therefore sag unintentionally, especially when attached to the support frame 22. Such sagging is particularly undesirable with strongly curved side windows. By appropriately curved the metal grid G, the shape of the functional layer structure F can be adapted to the curvature of the side window—or any other window of the motor vehicle K.

[0056] It is understood that the individual functional layers 3, 4, 5, 6, 7, 8, 9, 11 can be connected to the control device S for the purpose of controlling and / or electrically switching their respective functionality. The connection can be wireless or wired. Alternatively or in addition to the connection to the control device S, a connection to the electrical system of the motor vehicle K can be provided. This is particularly useful for supplying electrical operating energy.

Claims

[1] A sheet-like structure (1) for a motor vehicle interior, comprising a transparent and dimensionally stable support structure (2) and a multi-layer functional layer structure (F) supported by the support structure (2) and extending over a surface, wherein the functional layer structure (F) comprises a light protection functional layer (3) which is electrically controllable between different light-transmitting states to protect the motor vehicle interior from incident light, and at least one further functional layer (4, 5, 6, 7, 8, 9, 11), wherein an information functional layer (4) is provided and is designed to display variable information (I), characterized by that the information function layer (4) has an LED display (41) which is foldable relative to the support structure (2) between different positions about a folding axis. [2] Sheet material (1) according to claim 1, characterized bythat the support structure (2) has a pane (21) made of a translucent material, to which the functional layer structure (F) is applied, and / or a support frame (22) in which the functional layer structure (F) is circumferentially mounted. [3] Sheet material (1) according to claim 1 or 2, characterized by that the light protection functional layer (3) has at least one electrically switchable film (33), in particular a PDLC film (31) and / or an SPD film (32). [4] Sheet material (1) according to one of the preceding claims, characterized by that an input function position (5) is present and is set up for entering control commands (B). [5] Sheet (1) according to claim 4, characterized by that the input function layer (5) has a touch-sensitive input surface (51) with an inductive, capacitive and / or resistive operating principle. [6] Sheet material (1) according to one of the preceding claims, characterized bythat a heat function layer (6) is present and is designed to emit electrically generated radiant heat (W). [7] Sheet (1) according to claim 6, characterized by that the heat functional layer (6) has an electric surface heating (61). [8] Sheet material (1) according to one of the preceding claims, characterized by that a sound function layer (7) is present and is designed to emit sound signals (N). [9] Sheet (1) according to claim 8, characterized by that the sound functional layer (7) has an acoustic membrane (71). [10] Sheet material (1) according to one of the preceding claims, characterized by that an absorption functional layer (8) is present and is designed to absorb mechanical environmental influences (U) and / or electromagnetic environmental influences (E). [11] Sheet (1) according to one of the preceding claims, characterized bythat a metal grid (G) is assigned to the light protection functional layer (3), wherein the metal grid (G) functions as an absorption functional layer and / or as a heat functional layer and / or as a supporting structure. [12] Sheet material (1) according to one of the preceding claims, characterized by that a cover functional layer (9) is provided and is designed to cover the light protection functional layer (3) and / or the at least one further functional layer (4, 5, 6, 7, 8, 9, 11) in an at least partially opaque manner. [13] Sheet (1) according to claim 12, characterized by that the cover functional layer (9) is made of a textile material (91) and / or leather (92). [14] Arrangement with a sheet-like structure (1) according to one of the preceding claims and with a control device (S), wherein the control device (S) is connected to the functional layer structure (F) of the sheet-like structure (1) and is designed to control at least one function of at least one of the functional layers (4, 5, 6, 7, 8, 9, 11) of the functional layer structure (F). [15] Door module (10) for a motor vehicle door (100) with a window opening (101), comprising a sheet-like structure (1) according to one of claims 1 to 13 or an arrangement according to claim 14, a movement device (200) operatively connected to the sheet-like structure (1) and configured to move the sheet-like structure (1) between a stowed position in which the sheet-like structure (1) releases the window opening (101) and a functional position in which the sheet-like structure (1) covers the window opening (101). [16] Motor vehicle (K) with a sheet-like structure (1) according to one of claims 1 to 13, an arrangement according to claim 14 and / or a door module (10) according to claim 15.

Citation Information

Patent Citations

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    US20200298674A1