Carrier for a flexible optoelectronic component and optoelectronic assembly
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- AMS OSRAM INT GMBH
- Filing Date
- 2017-06-29
- Publication Date
- 2026-07-23
AI Technical Summary
Existing flexible optoelectronic components are prone to damage from excessive bending, with known solutions providing only indirect feedback and failing to prevent further bending once the limit is reached.
A carrier for flexible optoelectronic components featuring bending radius limiting bodies and elastic elements that physically prevent excessive bending and provide direct haptic feedback when the limit is reached, functioning independently of power supply.
Prevents excessive bending and damage to flexible optoelectronic components by mechanically limiting the bending radius, ensuring the component operates within safe parameters and providing immediate user feedback.
Smart Images
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Abstract
Description
[0001] The invention relates to a carrier for a flexible optoelectronic component and an optoelectronic assembly comprising the carrier and the flexible optoelectronic component.
[0002] An optoelectronic assembly comprises at least one flexible optoelectronic component and a substrate on which the optoelectronic component is mounted. The optoelectronic component can be manufactured independently of the substrate and subsequently mounted on the substrate. Alternatively, the optoelectronic component can be formed directly on the substrate. The substrate can thus be arranged in addition to a substrate of the flexible optoelectronic component or be part of the substrate of the flexible optoelectronic component. Optionally, the optoelectronic assembly can include one, two, or more electronic components. An electronic component can, for example, be an active and / or a passive component. An active electronic component can, for example, be a computing, control, and / or regulating unit and / or a transistor.A passive electronic component can, for example, contain a capacitor, a resistor, a diode, or an inductor.
[0003] An optoelectronic component can be either an electromagnetic radiation emitter or an electromagnetic radiation absorber. An electromagnetic radiation absorber could be, for example, a solar cell. An electromagnetic radiation emitter could be, for example, an LED or an OLED.
[0004] The substrate and the flexible optoelectronic component are mechanically flexible and consist of dimensionally stable materials and / or mixtures. Bending of the substrate and / or the flexible optoelectronic component up to a critical bending radius is reversible. In this context, a material or mixture can be considered dimensionally stable if it has a viscosity in the range of approximately 5 × 10² Pa·s to approximately 1 × 10²³ Pa·s and / or a modulus of elasticity in the range of approximately 1 × 10⁶ Pa to approximately 1 × 10¹² Pa. Within these ranges, the material or mixture exhibits viscoelastic to brittle behavior after forming a geometric shape.
[0005] Flexible optoelectronic assemblies of this kind, especially flexible thin light sources, are increasingly in demand, particularly for use in automotive and general lighting. Flexible OLEDs based on metal or plastic films or thin glass also meet the requirements for formability and aesthetics. Often, these flexible components need to be installed in a bent shape, and sometimes repeated bending is required. Frequently, it is desirable to utilize the minimum bending radius without damaging the optoelectronic assembly.
[0006] Depending on the substrate material used, the size of the component, the design of the optically active layer stack, the encapsulation, any scratch protection, and the electrical contacts, a specific minimum bending radius is determined. If the component is bent excessively, various failure modes can occur. In the case of direct failure, cracks form in the optically active layer, visible as dark streaks and / or delamination of individual layers. In the case of delayed failure, individual areas of the optically active layers fail, with this failure occurring more rapidly with excessive bending than in an identical, unbent component. In the case of rapid degradation, damage to the encapsulation leads to damage to the electrical contacts, such as contact areas and / or contact pads and / or connections using flexible PCB bonds, in humid environments.
[0007] Often, different minimum bending radii exist for convex and concave bends. For a concave bend, the center point or central axis of the bend lies on the encapsulation side, while for a convex bend, the center point or central axis lies on the substrate or support side. Furthermore, the minimum permissible bending radii can differ depending on whether the component is bent within or outside the optically active layers. Additionally, the bending plane can be relevant for the minimum permissible bending radius, for example, in the area of electrical leads. In this area, it can be important whether the bending plane is perpendicular or parallel to an electrical conductor.
[0008] It is known to design the optoelectronic assembly with an electrical bend radius limiter, whereby the current bend radius of the optoelectronic assembly is detected by means of suitable sensors. If the component is bent too sharply, this is signaled to the user and / or the optoelectronic assembly switches off. However, this is only a warning to the user; the component can be bent further and still be damaged.
[0009] One object of the invention is to provide a carrier for a flexible optoelectronic component which, when the flexible optoelectronic component is arranged on the carrier, helps to prevent excessive bending of the flexible optoelectronic component and / or damage to the flexible optoelectronic component due to excessive bending, and / or provides direct feedback to the user about the possibly borderline excessive bending.
[0010] One object of the invention is to provide an optoelectronic assembly comprising a carrier for a flexible optoelectronic component and a flexible optoelectronic component arranged on the carrier, in which excessive bending of the flexible optoelectronic component and / or damage to the flexible optoelectronic component due to excessive bending is prevented in a simple manner and / or which provides direct feedback to the user about the possibly borderline excessive bending.
[0011] One object of the invention is solved by a carrier for a flexible optoelectronic component, comprising: a first side having a mounting surface for arranging the flexible optoelectronic component; a second side facing away from the first side; and a first bend radius limiting body and at least one second bend radius limiting body, which are formed on the second side of the carrier such that their distal ends are spaced apart from each other when the carrier is not bent and when the carrier is bent convexly before reaching a predetermined first bend radius, and that their distal ends meet each other when the carrier is bent convexly upon reaching the first bend radius, thereby preventing convex bending of the carrier beyond the first bend radius.
[0012] The bend radius limiters provide a mechanical bend radius limit. When the bend radius limiters come into contact with each other, the user of the optoelectronic assembly, which comprises the carrier and the flexible optoelectronic component mounted on it, receives direct haptic feedback indicating that the predefined first bend radius has been reached. Further bending of the optoelectronic assembly beyond this point is prevented by the bend radius limiters. Thus, the mechanical bend radius limiter not only signals to the user that the bending has reached its limit, but also prevents the flexible optoelectronic component from bending beyond the predefined first bend radius. The mechanical bend radius limiter functions independently of any power supply to the optoelectronic assembly.The mechanical bend radius limitation using the bend radius limiting elements therefore also functions when the optoelectronic assembly is not in operation and / or not connected to a power supply. Bending is unproblematic before reaching the specified first bend radius, which is why the permissible minimum bend radius can be fully utilized. Due to its mechanically and / or fundamentally simple technical design, incorrect operation of the bend radius limiter is virtually impossible.
[0013] In convex bending, the beam is bent so that the center of rotation around which the beam is bent is located on a side of the beam facing away from the mounting surface. In contrast, in concave bending, the beam is bent so that the center of rotation around which the beam is bent faces the mounting surface.
[0014] According to a further development, at least one third bend radius limiting body is formed on the second side of the beam such that, when the beam is not bent and during convex bending, its distal end is spaced away from the distal ends of the first and second bend radius limiting bodies before a predetermined second bend radius is reached, and its distal end abuts the distal end of the first and / or second bend radius limiting body upon reaching the second bend radius, thereby preventing convex bending of the beam beyond the second bend radius. In addition to the third bend radius limiting body, further bend radius limiting bodies may be formed on the beam, which interact with the first, second, and / or third bend radius limiting bodies.By means of the multiple bend radius limiting bodies, excessive bending of a relatively large area of the optoelectronic assembly can be prevented by distributing the multiple bend radius limiting bodies over the relatively large area.
[0015] Excessive bending can be prevented uniformly across the entire large area by designing and arranging the bend radius limiting bodies so that the first and second bend radii are the same. Alternatively, varying degrees of bending in different areas can be prevented by designing and arranging the bend radius limiting bodies so that the first and second bend radii are different. For example, in an area where bending is relatively uncritical, the bend radius limiting bodies can be spaced further apart in the unbent state than in an area where bending is relatively critical.
[0016] Alternatively or additionally, the bending in different planes of curvature can be limited using multiple bend radius limiting bodies. The planes of curvature are each defined by an arbitrary surface normal on the mounting surface in the beam's uncurved state and by the same surface normal in the curved state. The first and second bend radius limiting bodies can limit the beam's bending in a first plane of curvature, and the second and third bend radius limiting bodies can limit the beam's bending in a second plane of curvature. This can be achieved, for example, by arranging the first and second bend radius limiting bodies to intersect the first plane of curvature, and by arranging the first and third bend radius limiting bodies to intersect the second plane of curvature.
[0017] According to a further development, at least two additional bend radius limiting elements are designed on the first side of the support such that their distal ends are spaced apart when the support is not bent and when it is bent concavely before a predetermined third bend radius is reached, and that their distal ends abut each other when the third bend radius is reached, thereby preventing concave bending of the support beyond the third bend radius. These additional bend radius limiting elements provide a mechanical bend radius limit during concave bending of the support and, if applicable, the optoelectronic assembly.The improvements and / or advantages described in connection with the first, second, and / or third bend radius limiting bodies on the second side of the support and the convex bending can readily be transferred to the additional bend radius limiting bodies on the first side of the support and the concave bending of the optoelectronic assembly. In particular, the additional bend radius limiting bodies provide the user of the optoelectronic assembly with direct haptic feedback when the third bend radius is reached and prevent the support from bending beyond the third bend radius.
[0018] One object of the invention is solved by a carrier for a flexible optoelectronic component, comprising: a first side having a mounting surface for arranging the flexible optoelectronic component, a second side facing away from the first side, a first bending radius limiting body and at least one second bending radius limiting body formed on the second side of the carrier, and at least one first elastic element extending from the first bending radius limiting body to the second bending radius limiting body, which is compressed when the carrier is bent convexly and stretched when the carrier is bent concavely, and which in each case exerts a restoring force against the bending direction, thereby making excessive bending of the carrier more difficult.
[0019] The bend radius limiters and the first elastic element constitute a mechanical bend radius limiter. When the carrier and / or the optoelectronic assembly is bent concavely or convexly, the user of the optoelectronic assembly, which comprises the carrier and the flexible optoelectronic component mounted on it, receives direct haptic feedback regarding the current bend radius due to the restoring force. While further bending of the optoelectronic assembly is possible, it is significantly hindered by a suitable spring strength and / or a suitable modulus of elasticity of the elastic element. The mechanical bend radius limiter thus not only signals to the user when bending is approaching its limit but also helps to prevent excessive bending of the flexible optoelectronic component.The mechanical bend radius limiter functions independently of the power supply to the optoelectronic assembly. The mechanical bend radius limiter, using the bend radius limiting elements and the first elastic element, therefore also works when the optoelectronic assembly is not in operation and / or not connected to a power supply. Due to its mechanically and / or fundamentally simple design, incorrect operation of the bend radius limiter is virtually impossible.
[0020] According to a further development, at least a third bending radius limiting body is formed on the second side of the beam, and at least a second elastic element extends from the first bending radius limiting body to the third bending radius limiting body. This elastic element is compressed when the beam bends convexly and stretched when it bends concavely, and it exerts a second restoring force opposite to the bending direction. In addition to the third bending radius limiting body and the second elastic element, further bending radius limiting bodies and corresponding elastic elements can be formed on the beam, which interact with the first, second, and / or third bending radius limiting bodies.By means of the multiple bend radius limiting bodies and corresponding elastic elements, excessive concave and convex bending of a relatively large area of the optoelectronic assembly can be prevented by extending the multiple bend radius limiting bodies and the corresponding elastic elements over the relatively large area.
[0021] Excessive bending can be prevented uniformly across the entire large area, for example, by ensuring that the bend radius limiting elements maintain the same distance from their immediate neighbors and that the elastic elements have the same spring constants and / or moduli of elasticity. Alternatively, bending can be prevented to varying degrees in different areas using the bend radius limiting elements and / or the elastic elements. This can be achieved by varying the distances between the bend radius limiting elements and their immediate neighbors and / or by using elastic elements with different spring constants and / or moduli of elasticity. For example, the first elastic element could have a different spring constant and / or modulus of elasticity than the second elastic element.This allows a different restoring force to be generated when the beam is bent in the area of the first elastic element than when the beam is bent in the area of the second elastic element.
[0022] Alternatively or additionally, the bending in different planes of curvature can be limited using multiple bend radius limiting bodies and corresponding elastic elements. For example, the first and second bend radius limiting bodies and the first elastic element can limit the bending of the beam in the first plane of curvature, and the second and third bend radius limiting bodies and the second elastic element can limit the bending of the beam in the second plane of curvature. To achieve this, the first and third bend radius limiting bodies can be positioned so that they intersect the first plane of curvature, and the second and third bend radius limiting bodies can be positioned so that they intersect the second plane of curvature.
[0023] According to a further development, at least two additional bending radius limiting bodies are formed on the first side of the beam, and at least one further elastic element extends from one of these additional bending radius limiting bodies to the other. This elastic element is compressed when the beam bends concavely and stretched when it bends convexly, and in each case exerts a restoring force opposite to the bending direction, thus preventing excessive bending of the beam. The additional bending radius limiting bodies and further elastic elements on the first side of the beam can additionally limit both the concave and convex bending of the beam.
[0024] One object of the invention is achieved by a carrier for a flexible optoelectronic component, which has at least two of the bend radius limiting bodies and at least one of the elastic elements described above. In particular, the carrier has the first, second, and / or third bend radius limiting bodies, which are designed such that they abut each other when the first or second bend radius is reached. Additionally, the carrier has the first and / or second elastic element, which, on the one hand, makes convex bending of the carrier more difficult and, on the other hand, also counteracts concave bending of the carrier. Optionally, the carrier can also have the further bend radius limiting bodies and the further elastic elements on the first side of the carrier.
[0025] According to a further development approach, the bending radius limiting bodies and / or the elastic elements are designed such that bending of the support before reaching the first, second, and / or third bending radius is safe for the support and / or, in the case of flexible optoelectronic components mounted on the support, for the flexible optoelectronic component itself. In simpler terms, the bending radius limiting bodies and, if applicable, the elastic elements are designed taking into account the flexible optoelectronic component intended to be mounted on the support. Specifically, it is first determined up to which bending radius in a given plane of curvature the bending of the flexible optoelectronic component is unproblematic. Then, it is determined how the bending radius limiting bodies and / or the elastic elements must be designed and arranged so that the determined bending radius is not undercut.The bending radius limiting bodies and / or the elastic elements are then designed accordingly.
[0026] According to a further development, the first bending radius is different from the second bending radius, the second bending radius is different from the third bending radius, and / or the first bending radius is different from the third bending radius. This allows for different degrees of bending of the beam in different areas, in different planes of curvature, and / or in different directions of curvature.
[0027] According to a further development, the three bending radius limiting bodies are arranged along a straight line. This allows the three bending radius limiting bodies to jointly prevent excessive bending of the beam in the first plane of curvature, whereby the straight line can lie in the first plane of curvature or at least be parallel to it.
[0028] According to a further development, the first and second bend radius limiting bodies are arranged along the first straight line, the third bend radius limiting body and at least one of the other bend radius limiting bodies are arranged along a second straight line, and the first and second straight lines intersect. This allows the first and second bend radius limiting bodies to prevent excessive bending of the beam in the first plane of curvature, and the second and third bend radius limiting bodies to prevent excessive bending of the beam in the second plane of curvature, wherein the first straight line can lie in the first plane of curvature or at least be parallel to it, and wherein the second straight line can lie in the second plane of curvature or at least be parallel to it.
[0029] According to a further development, the bend radius limiting bodies are designed to be translucent or transparent. This allows the bend radius limiting bodies to be arranged within an optically active area. For example, the bend radius limiting bodies can be positioned above a light-emitting surface of the optoelectronic assembly.
[0030] One object of the invention is solved by an optoelectronic assembly comprising the carrier described above and the flexible optoelectronic component described above, which is arranged on the mounting surface of the carrier. The further developments and / or advantages of the carrier described above can readily be transferred to further developments or advantages of the optoelectronic assembly.
[0031] According to a further development, the flexible optoelectronic component has an optically active and an optically inactive region, and the bend radius limiting elements are arranged such that they prevent convex bending of the flexible optoelectronic component in the optically active region from the first bend radius onwards, and prevent bending of the flexible optoelectronic component in the optically inactive region from the second bend radius onwards. For example, the flexible optoelectronic component may be more sensitive in the optically active region than in the optically inactive region. The bend radius limiting elements can then be designed and arranged such that bending of the optoelectronic assembly is prevented earlier in the optically active region than in the optically inactive region.The optically active region can be a laterally extending area of the flexible optoelectronic device from which self-generated electromagnetic radiation is emitted or in which external electromagnetic radiation is absorbed to gain energy.
[0032] According to a further development, the flexible optoelectronic component has an optically active and an optically inactive region. The first and second elastic elements have different spring constants and are arranged such that, when the flexible optoelectronic component is bent, they produce a different restoring force in the active region than in the inactive region. For example, the flexible optoelectronic component may be more sensitive in the optically active region than in the inactive region. The bending radius limiters and the elastic elements can then be designed and arranged such that bending of the optoelectronic assembly is more strongly prevented in the optically active region than in the inactive region.
[0033] Exemplary embodiments of the invention are shown in the figures and are explained in more detail below.
[0034] They show: Fig. 1 a lateral sectional view of an embodiment of a beam in an unbent state; Fig. 2 a lateral sectional view of the support according to Fig. 1 in bent state; Fig. 3 a lateral sectional view of an embodiment of a beam in an unbent state; Fig. 4 a lateral sectional view of the support according to Fig. 3 in bent state Fig. 5 a bottom view of an embodiment of a beam in an unbent state; Fig. 6 a bottom view of an embodiment of a beam in an unbent state; Fig. 7 a lateral sectional view of an embodiment of a beam in an unbent state; Fig.8 a lateral sectional view of an embodiment of an optoelectronic assembly in its unbent state; Fig. 9 a lateral sectional view of an embodiment of a beam in an unbent state; Fig. 10 a lateral sectional view of the support according to Fig. 9 in bent state; Fig. 11 a lateral sectional view of an embodiment of a beam in an unbent state; Fig. 12 a lateral sectional view of an embodiment of an optoelectronic assembly in its unbent state; Fig. 13 a lateral sectional view of an embodiment of an optoelectronic assembly in its unbent state; Fig. 14 a lateral sectional view of an embodiment of an optoelectronic assembly in its unbent state.
[0035] The following detailed description refers to the accompanying drawings, which form part of this description and in which specific embodiments are shown for illustration purposes, illustrating how the invention can be implemented. Since components of embodiments can be positioned in a number of different orientations, the directional terminology serves only for illustration and is in no way restrictive. It is understood that other embodiments may be used and structural or logical modifications may be made without deviating from the scope of protection of the present invention. It is understood that the features of the various embodiments described herein may be combined with one another unless specifically stated otherwise.The following detailed description is therefore not to be interpreted in a restrictive sense, and the scope of protection of the present invention is defined by the appended claims. In the figures, identical or similar elements are provided with identical reference numerals where appropriate.
[0036] An optoelectronic assembly can contain one, two, or more optoelectronic components. Optionally, an optoelectronic assembly can also contain one, two, or more electronic components. An electronic component can, for example, be an active and / or a passive component. An active electronic component can, for example, be a computing, control, and / or regulating unit and / or a transistor. A passive electronic component can, for example, be a capacitor, a resistor, a diode, or an inductor.
[0037] An optoelectronic component can be either an electromagnetic radiation emitter or an electromagnetic radiation absorber. An electromagnetic radiation absorber can be, for example, a solar cell. An electromagnetic radiation emitter can, in various embodiments, be an electromagnetic radiation emitting semiconductor component and / or be configured as an electromagnetic radiation emitting diode, an organic electromagnetic radiation emitting diode, an electromagnetic radiation emitting transistor, or an organic electromagnetic radiation emitting transistor. The radiation can be, for example, visible light, ultraviolet light, and / or infrared light.In this context, the electromagnetic radiation-emitting component can be designed, for example, as a light-emitting diode (LED), an organic light-emitting diode (OLED), a light-emitting transistor, or an organic light-emitting transistor. The light-emitting component can be part of an integrated circuit in various embodiments. Furthermore, multiple light-emitting components can be provided, for example, housed in a common package.
[0038] A substrate and a flexible optoelectronic component mounted on the substrate are mechanically flexible and comprise dimensionally stable materials and / or mixtures. Bending of the substrate and / or the flexible optoelectronic component up to a critical bending radius is reversible. In this context, a material or mixture can be considered dimensionally stable if it has a viscosity in the range of approximately 5 × 10² Pa·s to approximately 1 × 10²³ Pa·s and / or a modulus of elasticity in the range of approximately 1 × 10⁶ Pa to approximately 1 × 10¹² Pa. Within these ranges, the material or mixture exhibits viscoelastic to brittle behavior after forming a geometric shape.
[0039] Fig. Figure 1 shows a side sectional view of an exemplary embodiment of a support. 20 in its unbent state. The support 20 shows a first page 22and one from the first page 22 far-flung second side 24 open. The first page 22 It features a mounting surface for arranging a flexible optoelectronic component. On the second side... 24 is a bending radius limiting structure 26 trained.
[0040] The bending radius limiting structure 26 has a first bending radius limiting body 32 and a second bending radius limiting body 34 on the second side 24 of the carrier 20 The first and second bend radius limiting bodies 32 , 34 They are arranged directly adjacent to each other. This means that no further bend radius limiting body is located between the first and second bend radius limiting body. 32 , 34 is arranged. The bending radius limiting bodies 32 , 34 can be integrated as one piece with the rest of the carrier 20be formed. Alternatively, the bending radius limiting bodies can be 32 , 34 on the carrier 20 be attached and then part of the carrier 20 form.
[0041] The bending radius limiting bodies 32 , 34 indicate when the carrier is not bent 20 a predetermined first distance A1 in relation to each other. In particular, the distal ends of the bending radius limiting bodies have 32 , 34 with non-bent beam 20 the specified first distance A1 towards each other.
[0042] If on the mounting surface 22 a flexible optoelectronic component 40 to be arranged, for example, a bottom emitter or a bidirectional emitting component, and which emits light at least in the direction of the bending radius limiting structure. 26 emitted, the bending radius limiting structure 26and in particular the bending radius limiting bodies 32 , 34 transparent or at least translucent for the flexible optoelectronic component 40 The generated light.
[0043] Fig. Figure 2 shows a lateral sectional view of the support. 20 according to Fig. 1 in a bent state. In particular, the support 20 at the in Fig. The condition shown in Figure 2 is bent so strongly that the bending radius limiting bodies 32 , 34 , especially their distal ends, collide. Bending of the support beyond the condition shown. 20 is due to the abutting bending radius limiting bodies 32 , 34 Not possible. How strong the carrier 20 It can be bent depending on the initial distance. A1 in its unbent state. The greater the initial gap A1 The more advanced the carrier, the further it can travel. 20be bent. The further the support 20 The more the material is bent, the smaller the corresponding bending radius becomes. Therefore, the minimum achievable bending radius depends on the initial distance. A1 from. The greater the initial distance A1 The larger the diameter, the smaller the minimum achievable bending radius. The in Fig. The minimum bending radius shown in point 2 can also be referred to as the predetermined first bending radius. The first distance A1 The first bending radius can be in a range, for example, from 0.01 mm to 1000 mm, from 0.1 mm to 200 mm, or from 1 mm to 50 mm.
[0044] The one in the Fig. 1 and Fig. 2 carriers shown 20 with the two bending radius limiting bodies 32 , 34It essentially serves to illustrate the bending radius limitation structure. 26 underlying functional principle. In reality, the carrier can 20 far more of the bending radius limiting body 32 , 34 exhibit, for example, a variety of bend radius limiting bodies. 32 , 34 laterally next to each other on the second side 24 of the carrier 20 be designed. The bending radius limiting bodies can be used in this process. 32 , 34 for example, arranged in a matrix, i.e., in several rows and several columns.
[0045] Alternatively or in addition to the first distance A1 The minimum achievable bending radius can also be determined by the shape of the bending radius limiting bodies. 32 , 34 , in particular regarding the shape of the distal ends of the bending radius limiting bodies 32 , 34be adjusted. For example, if the Fig. 1 and Fig. 2 shown bending radius limiting bodies 32 , 34 If the distal ends have rounded corners, these distal ends will only meet at a smaller bending radius than with non-rounded corners, thus reducing the minimum possible bending radius.
[0046] Fig. Figure 3 shows a side sectional view of an exemplary embodiment of a support. 20 in its unbent state. The support 20 can, for example, largely correspond to the carrier explained above. 20 correspond. The carrier 20 has a third bending radius limiting body 36 up. The third bending radius limiting body 36 is part of the bending radius limitation structure 26 The third bend radius limiting body 36is lateral to and directly adjacent to the second bend radius limiting body 34 on the second side 24 formed. The third bending radius limiting body 36 is on one of the first bend radius limiting bodies 32 far side of the second bend radius limiting body 34 arranged. The third bending radius limiting body 36 has in the unbent state of the carrier 20 a second distance A2 to the second bending radius limiting body 34 In particular, the distal ends of the second and third bend radius limiting bodies have 34 , 36 in the unbent state of the carrier 20 the second distance A2 to each other.
[0047] If on the mounting surface 22 a flexible optoelectronic component 40to be arranged, for example, a bottom emitter or a bidirectional emitting component, and which emits light at least in the direction of the bending radius limiting structure. 26 emitted, the bending radius limiting structure 26 and in particular the bending radius limiting bodies 32 , 34 , 36 preferably transparent or at least translucent for the flexible optoelectronic component 40 The generated light.
[0048] Fig. Figure 4 shows a lateral sectional view of the support. 20 according to Fig. 3 in a bent state. In particular, the support 20 at the in Fig. The condition shown in Figure 4 is bent so strongly that the bending radius limiting bodies 32 , 34 , 36 especially their distal ends, collide. Bending of the support beyond the condition shown. 20is due to the abutting bending radius limiting bodies 32 , 34 , 36 Not possible. How strong the carrier 20 The degree to which it can be bent depends on the first and second distances. A1 , A2 in its unbent state. The greater the first and second distances. A1 , A2 The more advanced the carrier, the further it can travel. 20 be bent. The further the support 20 The more the material is bent, the smaller the corresponding bending radius becomes. Therefore, the minimum achievable bending radius depends on the first and second distances. A1 , A2 from. The greater the first and second distance A1 , A2 The larger the distance, the smaller the minimum achievable bending radius. The second distance A2 can lie in the same areas explained above as the first distance A1The second bending radius can lie within the same ranges explained above as the first bending radius.
[0049] The one in the Fig. 3 and Fig. 4 carriers shown 20 with the three bending radius limiting bodies 32 , 34 , 36 It essentially serves to illustrate the bending radius limitation structure. 26 underlying functional principle. In reality, the carrier can 20 far more of the bending radius limiting body 32 , 34 , 36 exhibit, for example, a variety of bend radius limiting bodies. 32 , 34 , 36 laterally next to each other on the second side 24 of the carrier 20 be designed. The bending radius limiting bodies can be used in this process. 32 , 34 , 36 for example, arranged in a matrix, i.e., in several rows and several columns.
[0050] At the in Fig. In the 3 shown embodiment, the first distance is A1 and the second distance A2 The bending radius is the same size. This means that the minimum achievable bending radius is the same across the entire area covered by the bending radius limiting bodies. 32 , 34 , 36 extend, is of the same size. For example, the minimum achievable bending radius is the same across the entire area over which the bending radius limiting bodies extend. 32 , 34 , 36 extend to the specified first bending radius.
[0051] Alternatively, the first distance can be A1 and the second distance A2 They may be of different sizes. This means that the minimum achievable bending radius in an area over which the first and second bending radius limiting bodies overlap is limited. 32 , 34extend, unlike in an area over which the second and third bend radius limiting bodies extend 34 , 36 extend. For example, the minimum bending radius can extend into the area over which the first and second bending radius limiting bodies lie. 32 , 34 extend, be the first bending radius and the minimum bending radius in the area over which the second and third bending radius limiting bodies extend 34 , 36 The second bending radius can differ from the first. This can be particularly advantageous if a different minimum bending radius is critical in one area than in the other. For example, one area might correspond to an optically active region of the flexible optoelectronic device, and the other might correspond to a non-optically active region.
[0052] Alternatively or in addition to the first distance A1 The minimum achievable bending radius can also be determined by the shape of the bending radius limiting bodies. 32 , 34 , 36 in particular the shape of the distal ends of the bending radius limiting bodies 32 , 34 , 36 be adjusted. For example, if the Fig. 1 and Fig. 2 shown bending radius limiting bodies 32 , 34 , 36 If the distal ends have rounded corners, these distal ends will only meet at a smaller bending radius than with non-rounded corners, thus reducing the minimum possible bending radius.
[0053] Fig. Figure 5 shows a bottom view of an exemplary embodiment of a support. 20 in its unbent state. For example, it shows Fig. 5 a bottom view of the in Fig. 3 carriers shown20 in the unbent state. The bending radius limiting bodies 32 , 34 , 36 are along a first straight line 37 arranged. In other words, the bend radius limiting bodies intersect. 32 , 34 , 36 all the first straight 37 If the carrier 20 is curved in a first plane of curvature, which is spanned by a surface normal on the mounting surface in the non-curved state and by the same surface normal in the curved state, and which is the first straight line 37 and contains the surface normal, for example as in Fig. As shown in section 4, all three bending radius limiting bodies can be used. 32 , 34 , 36 to help limit the bending radius in the first plane of curvature. If the beam 20 more bend radius limiting bodies on the second side 24If these are present, they can, for example, be located along the first straight line. 37 and / or along other straight lines that lead to the first straight line 37 are arranged in parallel.
[0054] Fig. Figure 6 shows a bottom view of an exemplary embodiment of a support. 20 in its unbent state. For example, Fig. 6 den in Fig. 1 shown support 20 show in the unbent state, provided that this has the third bending radius limiting body 36 exhibits, for example in Fig. 1 directly behind the second bend radius limiting body 32 It can be arranged and concealed by it. The first and second bend radius limiting bodies 32 , 34 are along the first straight line 37 arranged. The second and third bending radius limiting bodies 34 , 36 are along a second straight line 39arranged. In other words, the second line intersects 39 the second and the third bending radius limiting body 34 , 36 . While the first and second bend radius limiting bodies 32 , 34 The second and third bending radius limiting bodies prevent excessive bending of the beam in the first plane of curvature. 34 , 36 excessive bending of the beam 20 in a second plane of curvature. The second plane of curvature is spanned by a surface normal on the mounting surface in the non-curved state and by the same surface normal in the curved state, and contains the corresponding surface normal and the second straight line. 39 .
[0055] The first straight 37 and the second straight 39 intersect, especially in the case of the one relating to Fig.The embodiment described in section 6 is at a right angle. Accordingly, the first and second planes of curvature also intersect at a right angle. Alternatively, the lines can 37 , 39 and intersect the corresponding planes of curvature at other angles.
[0056] The specified first bending radius, which represents the limit for bending in the first plane of curvature, can be adjusted by appropriately specifying the first distance. A1 A predetermined second bending radius, which represents a limit for bending in the second plane of curvature, can be set by appropriately specifying the second distance. A2This can be adjusted. This can be advantageous, for example, if the bending of the support in the first plane of curvature is more or less critical than the bending of the support in the second plane of curvature. This can be the case, for example, if electrical conductors run parallel to the first or second plane of curvature.
[0057] If the carrier 20 more bend radius limiting bodies on the second side 24 If these are present, they can, for example, be located along the first straight line. 37 , along further straight lines that lead to the first straight line 37 are parallel, along the second straight line 39 and / or along other straight lines that lead to the second line 39 are arranged in parallel.
[0058] Fig. Figure 7 shows a side sectional view of an exemplary embodiment of a support. 20 in its unbent state. The support 20can, for example, largely correspond to the following: Fig. 1 or Fig. 3 explained carriers 20 correspond to the bending radius limitation structure. 26 of the carrier 20 has six bending radius limiting bodies on the second side 24 The bending radius limiting bodies can essentially be the first, second and / or third bending radius limiting bodies. 32 , 34 , 36 correspond. A first group of bend radius limiting bodies has the first spacing. A1 a second group of bend radius limiting bodies has a distance of A2 to each other. The first distance A1 is greater than the second distance A2 In the area of the first group, the carrier 20 up to the first bending radius. In the area of the second group, the beam can 20They can be bent up to the second bending radius. This allows for different distances to be specified. A1 , A2 Different bending radii of the beam between the bending radius limiting bodies 20 in correspondingly different areas of the organization 20 be hired.
[0059] If on the mounting surface 22 a flexible optoelectronic component 40 to be arranged, for example, a bottom emitter or a bidirectional emitting component, and which emits light at least in the direction of the bending radius limiting structure. 26 emitted, the bending radius limiting structure 26 and in particular the bending radius limiting bodies 32 , 34 , 36 preferably transparent or at least translucent for the flexible optoelectronic component 40 The generated light.
[0060] Fig.Figure 8 shows a side sectional view of an embodiment of an optoelectronic assembly in its unbent state. The optoelectronic assembly has the carrier 20 and a flexible optoelectronic component 40 on. The flexible optoelectronic component 40 is on the mounting surface of the carrier 20 arranged. On a side of the flexible optoelectronic component facing away from the mounting surface. 40 is another bending radius limiting structure 38 formed. The further bending radius limitation structure 38 essentially corresponds to the bending radius limitation structure 26 In particular, the further bending radius limitation structure exhibits 38 several bend radius limiting bodies are positioned laterally next to each other and spaced apart from each other on the flexible optoelectronic component. 40 are arranged.
[0061] The other bending radius limiting bodies are located in the Fig. 8 shown, the non-bent state of the optoelectronic assembly has a predetermined distance between them, which is, for example, the first distance A1 and / or the second distance A2 can correspond to or from the first and / or second distance A1 It can vary. If the optoelectronic assembly 20When the component is bent concavely, the distal ends of the subsequent bend radius limiting bodies abut each other from a predetermined third bend radius onwards. This provides the user of the optoelectronic assembly with haptic feedback that the predetermined third bend radius has been reached, thus preventing any further concave bending of the optoelectronic assembly beyond this radius. The third bend radius can be the same as the first and / or second bend radius. Alternatively, the third bend radius can differ from the first and second bend radii. In the latter case, a different limit can be set for concave bending of the support than for convex bending. This is particularly advantageous when one of the two bending directions is more critical than the other.
[0062] At the in Fig.In the embodiment shown in 8, the further bending radius limiting bodies are located exclusively above the flexible optoelectronic component. 40 arranged. Alternatively or additionally, the other bending radius limiting bodies can be placed on the first side. 22 of the carrier 20 outside the flexible optoelectronic component 40 The additional bending radius limiting bodies can be designed in such a way that they form part of the beam. 20 form. For example, the additional bending radius limiting bodies can be integrally formed with the beam. 20 be trained or permanently associated with the carrier.
[0063] The flexible optoelectronic component 40 For example, it could be a top emitter and direct light towards the further bend radius limiting structure. 38 emit. In this case, the further bending radius limiting structure 38and in particular the further bending radius limiting bodies preferably transparent or at least translucent for the flexible optoelectronic component 40 generated light.
[0064] Alternatively, the flexible optoelectronic component can be used 40 for example, it could be a bottom emitter and emit light in the direction of the bending radius limiting structure. 26 emit. In this case, the bending radius limiting structure 26 and the bending radius limiting bodies 32 , 34 , 36 preferably transparent or at least translucent for the flexible optoelectronic component 40 generated light.
[0065] Alternatively, the flexible optoelectronic component can be used 40 for example, a top and bottom emitter, i.e., a component emitting on both sides, and light directed towards the bending radius limiting structure. 26and the further bending radius limitation structure 38 emit. In this case, the bending radius limiting structure 26 , the further bending radius limitation structure 38 and the bending radius limiting bodies 32 , 34 , 36 preferably transparent or at least translucent for the flexible optoelectronic component 40 generated light. In this case, the optoelectronic assembly can be a transparent or translucent assembly.
[0066] Fig. Figure 9 shows a side sectional view of an exemplary embodiment of a support. 20 in its unbent state. The support 20 can, for example, largely correspond to the following: Fig. 3 explained carriers 20 correspond to the distances between the bending radius limiting bodies. 32 , 34 , 36 are in Fig.Figure 9 is shown relatively large for better illustration. In reality, however, the distances can be smaller or larger.
[0067] A first elastic element F1 extends from the first bending radius limiting body 32 to the second bending radius limiting body 34 A second elastic element F2 extends from the second bending radius limiting body 34 to the third bending radius limiting body 36 The first elastic element F1 It has a predetermined first spring force or a predetermined first modulus of elasticity. The second elastic element F2It has a predetermined second spring strength or a predetermined second modulus of elasticity. The first spring strength can be the same as the second spring strength or different from the second spring strength. The first modulus of elasticity can be the same as the second modulus of elasticity or different from the second modulus of elasticity.
[0068] Fig. Figure 10 shows a lateral sectional view of the support. 20 according to Fig. 9 in a bent state, especially in a concave bent state. When the beam bends concavely 20 The elastic elements will be F1 , F2 stretched. Due to their elasticity, the elastic elements cause F1 , F2 a restoring force on the bending radius limiting bodies 32 , 34 , 36 and thus onto the carrier 20 This is how the elastic elements work. F1 , F2by means of the restoring force, the concave bending of the support 20 in contrast to.
[0069] In the case of convex bending of the support 20 In contrast, the elastic elements F1 , F2 compressed and pressed together. Due to their elasticity, the elastic elements cause F1 , F2 a restoring force on the bending radius limiting bodies 32 , 34 , 36 and thus onto the carrier 20 This is how the elastic elements work. F1 , F2 by means of the restoring force, the convex bending of the support 20 in contrast to.
[0070] The user of the carrier 20 Anyone who feels one of these restoring forces receives haptic feedback that prevents them from moving the wearer. 20 to bend it too far, or at least to indicate to him that the carrier 20 not to bend it too far.
[0071] If the spring strengths and / or moduli of elasticity of the elastic elements F1 , F2 If the beam is of the same size, it will bend uniformly. 20 over the entire carrier 20 generates the same restoring forces, thus preventing the beam from bending. 20 The force is counteracted uniformly. If the spring strengths and / or moduli of elasticity of the elastic elements differ... F1 , F2 to differ from each other, so when the support is bent 20 in an area of the carrier 20 , in which the first elastic element F1 It is arranged in a different way than in another area of the support. 20 , in which the second elastic element F2 , is arranged. That is, to prevent the beam from bending. 20The resistance varies in strength between the two areas. This can be advantageous if one of the two areas is more critical and / or sensitive to bending than the other.
[0072] The elastic elements F1 , F2 are in the Fig. 9 and Fig. 10 are represented as spiral springs. The elastic elements F1 , F2 They can indeed be coil springs, but they can also be designed differently, for example in the form of elastomers, as shown below with reference to Fig. 11 explained in more detail.
[0073] The elastic elements F1 , F2 and the elastic elements explained below F1 , F2 They can, for example, have a modulus of elasticity in the range of, for example, 0.001 kN / mm². 2 up to 300 kN / mm 2 , for example, 0.005 kN / mm 2 up to 100 kN / mm2 , for example, 0.01 kN / mm 2 up to 50 kN / mm 2 .
[0074] In addition to the elastic elements F1 , F2 can the bending radius limiting bodies 32 , 34 , 36 They should be designed in such a way that they serve as bending radius limits when the beam is bent convexly and abut each other when the first or second bending radius is reached, similar to the one described in relation to Fig. 3. Explanatory example.
[0075] If on the mounting surface 22 a flexible optoelectronic component 40 to be arranged, for example, a bottom emitter or a bidirectional emitting component, and which emits light at least in the direction of the bending radius limiting structure. 26 emitted, the bending radius limiting structure 26 and in particular the bending radius limiting bodies 32 , 34 , 36transparent or at least translucent for the flexible optoelectronic component 40 The generated light.
[0076] Fig. Figure 11 shows a side sectional view of an exemplary embodiment of a support. 20 in its unbent state. The support 20 can, for example, largely correspond to the following: Fig. 9 explained carriers 20 correspond. The elastic elements F1 , F2 Each element is formed from an elastomer. With regard to their arrangement and function, the elastic elements correspond to... F1 , F2 those related to the Fig. 9 and Fig. 10 elastic elements explained F1 , F2 .
[0077] If on the mounting surface 22 a flexible optoelectronic component 40to be arranged, for example, a bottom emitter or a bidirectional emitting component, and which emits light at least in the direction of the bending radius limiting structure. 26 emitted, the bending radius limiting structure 26 and in particular the bending radius limiting bodies 32 , 34 , 36 transparent or at least translucent for the flexible optoelectronic component 40 The generated light.
[0078] Fig. Figure 12 shows a side sectional view of an embodiment of an optoelectronic assembly in its unbent state. The optoelectronic assembly has the carrier 20 and the flexible optoelectronic component 40 on.
[0079] The flexible optoelectronic component 40 indicates: a substrate 42 , which is on the carrier 20is arranged and has a first electrode, an optoelectronic layer structure 44 , which are above the substrate 42 is arranged, a second electrode 46 , which are above the optoelectronic layer structure 44 is formed, and an encapsulation 48 , which is the optoelectronic layer structure 44 and the second electrode 46 encapsulated. The substrate 42 The first electrode has at least two contact areas for electrically contacting the first electrode and the second electrode. 46 on. For the sake of simplicity, the substrate 42 represented as a continuous layer. In fact, the substrate can 42 However, they may have individual and / or electrically isolated sub-areas, for example, the contact areas. Optionally, the substrate can 42a base body on which the first electrode and / or the contact areas are formed. Alternatively, the carrier can 20 as a base body for the substrate 42 serve and the first electrode and / or the contact areas can be placed directly on the carrier 20 be trained. In this case, the carrier can 20 as part of the substrate 42 The optoelectronic layer structure can be viewed. 44 For example, an organic optoelectronic layer structure is an organic light-emitting layer structure or an organic light-absorbing layer structure.
[0080] The bending radius limiting structure 26The component features the bend radius limiting bodies described above. These limiting bodies are all equidistant from their directly adjacent neighbors. The limiting bodies allow convex bending of the optoelectronic assembly up to the first bend radius and prevent any further convex bending.
[0081] The bend radius limiting bodies can be arranged in a matrix-like fashion, i.e., in multiple rows and columns, in a bottom view of the optoelectronic assembly. In particular, the bend radius limiting bodies can be arranged along the first straight line. 37 and along to the first straight section 37 parallel further lines and along the second line 39 and along to the second straight line 39 They can be arranged along parallel lines. In this way, the bending radius limiting structure can be defined. 26to limit the convex bending of the optoelectronic assembly in the first plane of curvature and in the second plane of curvature perpendicular to it.
[0082] If on the mounting surface 22 a flexible optoelectronic component 40 to be arranged, for example, a bottom emitter or a bidirectional emitting component, and which emits light at least in the direction of the bending radius limiting structure. 26 emitted, the bending radius limiting structure 26 and in particular the bending radius limiting bodies 32 , 34 , 36 transparent or at least translucent for the flexible optoelectronic component 40 The generated light.
[0083] Optionally, on the second page 22 of the carrier 20 , for example above or next to the flexible optoelectronic component 40 the further bending radius limitation structure38 be designed. Alternatively or additionally, elastic elements can be placed between one or more of the bending radius limiting bodies. F1 , F2 be trained.
[0084] Fig. Figure 13 shows a side sectional view of an embodiment of an optoelectronic assembly in its unbent state. The optoelectronic assembly can largely be compared to the one described in relation to Fig. The optoelectronic assembly described in section 12 corresponds to the assembly described. The optoelectronic assembly has an optically active area. 50 and an optically inactive area 52 on. In the optically active area 50 The optoelectronic assembly generates or absorbs light to generate electricity. In the optically inactive region 52 The optoelectronic assembly neither emits nor absorbs light to generate electricity. Fig. 13 is the optically inactive area52 The areas are shown as two separate sections, but in other sectional views or top views, the sections may be connected. In the visually inactive area 52 Electrical conductors run along the surface and / or there are contact areas for contacting the optoelectronic layer structure. 44 .
[0085] In the optically active area 50 Bending of the optoelectronic assembly is more critical inside the optically active area than outside. 50 , since the optoelectronic layer structure 44 in the optically active area 50 It is designed and can be very sensitive to bending. In particular, even a relatively small bending radius can damage the optoelectronic layer structure. 44 will be damaged. Outside the optically active area. 50 , for example in the optically inactive area 52Bending the optoelectronic assembly is less critical, as the electrical conductor tracks and / or contact areas are less sensitive to bending and can only be damaged at a relatively small bending radius.
[0086] The bending radius limiting bodies are located outside the optically active area. 50 the first distance A1 and within the optically active area 50 the second distance A2 towards each other, with the second distance A2 is smaller than the first distance A1 In this way, outside the optically active range. 50 A smaller bending radius is possible than within the optically active area. 50 This protects the optically active area when the optoelectronic assembly is bent. 50 and in particular the optoelectronic layer structure 44earlier, before excessive bending, rather than the optically inactive area 52 .
[0087] If on the mounting surface 22 a flexible optoelectronic component 40 to be arranged, for example, a bottom emitter or a bidirectional emitting component, and which emits light at least in the direction of the bending radius limiting structure. 26 emitted, the bending radius limiting structure 26 and in particular the bending radius limiting bodies 32 , 34 , 36 preferably transparent or at least translucent for the flexible optoelectronic component 40 The generated light.
[0088] Optionally, on the second page 22 of the carrier 20 , for example above or next to the flexible optoelectronic component 40 the further bending radius limitation structure 38be designed. Alternatively or additionally, elastic elements can be placed between one or more of the bending radius limiting bodies. F1 , F2 be trained.
[0089] Fig. Figure 14 shows a side sectional view of an embodiment of an optoelectronic assembly in its unbent state. The optoelectronic assembly can largely be compared to the one described in relation to Fig. The optoelectronic assembly described in section 13 corresponds to this. Several of the elastic elements described above are located between the bending radius limiting bodies. F1 , F2 arranged. The optoelectronic assembly has the optically active area. 50 and the optically inactive area 52 on. In the optically active area 50 Bending of the optoelectronic assembly is more critical than outside the optically active area. 50 .
[0090] The first elastic elementsF1 are outside the optically active range 50 are arranged and have a first spring constant. The second elastic elements F2 are within the optically active range 50 They are arranged and have a second spring constant. The second spring constant is greater than the first spring constant. In this way, outside the optically active range 50 Bending of the optoelectronic assembly is less counteracted than within the optically active area. 50 This protects the optically active area when the optoelectronic assembly is bent. 50 and in particular the optoelectronic layer structure 44 better to protect against excessive bending than the optically inactive area 52 .
[0091] If on the mounting surface 22 a flexible optoelectronic component 40to be arranged, for example, a bottom emitter or a bidirectional emitting component, and which emits light at least in the direction of the bending radius limiting structure. 26 emitted, the bending radius limiting structure 26 and in particular the bending radius limiting bodies 32 , 34 , 36 preferably transparent or at least translucent for the flexible optoelectronic component 40 The generated light.
[0092] Optionally, on the second page 22 of the carrier 20 , for example above or next to the flexible optoelectronic component 40 the further bending radius limitation structure 38 be trained.
[0093] If on the mounting surface 22 a flexible optoelectronic component 40to be arranged, for example, a bottom emitter or a bidirectional emitting component, and which emits light at least in the direction of the bending radius limiting structure. 26 emitted, the bending radius limiting structure 26 and in particular the bending radius limiting bodies 32 , 34 , 36 transparent or at least translucent for the flexible optoelectronic component 40 The generated light.
[0094] The invention is not limited to the specified embodiments. For example, except for the embodiment shown in the Fig. 1 and Fig. In the second illustrated embodiment, all of the illustrated embodiments have bending radius limiting bodies to a greater or lesser extent. Furthermore, all embodiments can have bending radius limiting bodies on both sides. 22 , 24 or only on one of the pages 22 , 24 of the carrier 20All embodiments can include bending radius limiting elements arranged in a matrix in a top view and / or a bottom view. Furthermore, the elastic elements can F1 , F2 in all embodiments. Furthermore, elastic elements can be arranged between some of the bending radius limiting bodies. F1 , F2 be arranged and no elastic elements can be placed between other bending radius limiting bodies. F1 , F2 can be arranged. Furthermore, all of the bending radius limiting bodies can be transparent or translucent. The illustrated embodiments can also be combined. For example, on one side 22 , 24 of the carrier 20 elastic elements F1 , F2 Some may be intended, while others may not. Furthermore, several flexible optoelectronic components can be used. 40on a carrier 20 be arranged. Reference symbol list carrier 20 first page 22 second page 24 Bending radius limiting structure 26 first bend radius limiting body 32 second bending radius limiting body 34 third bending radius limiting body 36 first straight 37 additional bending radius limiting bodies 38 second straight 39 flexible optoelectronic component 40 substrate 42 optoelectronic layer structure 44 second electrode 46 encapsulation 48 optically active area 50 optically inactive area 52 first distance A1 second distance A2 first spring F1 second spring F2
Claims
[1] Carrier (20) for a flexible optoelectronic component (40), with a first side (22) which has a mounting surface for arranging the flexible optoelectronic component (40), a second side (24) which is turned away from the first side (22), and a first bending radius limiting body (32) and at least a second bending radius limiting body (34) which are formed on the second side (24) of the beam (20) such that their distal ends are spaced apart from each other before reaching a predetermined first bending radius when the beam (20) is not bent and when the beam (20) is bent convexly, and that their distal ends meet each other when the beam (20) is bent convexly upon reaching the first bending radius, thereby preventing convex bending of the beam (20) beyond the first bending radius. [2] Beam (20) according to claim 1, in which at least one third bending radius limiting body (36) is formed on the second side (24) of the beam (20) such that whose distal end, when the support (20) is not bent and when the support (20) is bent convexly, is spaced away from the distal ends of the first and second bend radius limiting bodies (32, 34) before reaching a predetermined second bend radius, and whose distal end, upon reaching the second bending radius, abuts the distal end of the first and / or second bending radius limiting body (32, 34), thereby preventing convex bending of the beam (20) beyond the second bending radius. [3] Beam (20) according to one of the preceding claims, in which at least two further bending radius limiting bodies (38) are designed on the first side (22) of the beam (20) such that their distal ends are spaced apart from each other when the beam (20) is not bent and when the beam (20) is bent concavely before reaching a predetermined third bending radius and that their distal ends meet when the third bending radius is reached, thereby preventing concave bending of the beam (20) beyond the third bending radius. [4] Carrier (20) for a flexible optoelectronic component (40), with a first side (22) which has a mounting surface for arranging the flexible optoelectronic component (40), a second side (24) which is turned away from the first side (22), a first bending radius limiting body (32) and at least a second bending radius limiting body (34) formed on the second side (24) of the beam (20), and at least one first elastic element (F1) extending from the first bending radius limiting body (32) to the second bending radius limiting body (34), which is compressed when the beam (20) is bent convexly and stretched when the beam (20) is bent concavely and which in each case exerts a restoring force against the bending direction, thereby making excessive bending of the beam (20) more difficult. [5] Carrier (20) according to claim 4, with at least a third bending radius limiting body (36) formed on the second side (24) of the beam (20), and at least a second elastic element (F2) extending from the first bending radius limiting body (32) to the third bending radius limiting body (36), which is compressed when the beam (20) is bent convexly and stretched when the beam (20) is bent concavely and which causes a second restoring force against the bending direction. [6] Carrier (20) according to one of claims 4 or 5, comprising at least two further bending radius limiting bodies (38) formed on the first side (22) of the beam (20), and at least one further elastic element extending from one further bending radius limiting body (38) to the other further bending radius limiting body (38), which is compressed when the beam (20) is bent concavely and stretched when the beam (20) is bent convexly and which in each case causes a restoring force against the bending direction, thereby preventing excessive bending of the beam (20). [7] Carrier (20) for a flexible optoelectronic component (40), comprising at least two of the bending radius limiting bodies (32, 34, 36, 38) according to any one of claims 1 to 3 and comprising at least one of the elastic elements (F1, F2) according to any one of claims 4 to 6. [8] Carrier (20) according to one of the preceding claims, wherein the bending radius limiting bodies (32, 34, 36, 38) and / or the elastic elements (F1, F2) are designed such that bending of the carrier (20) before reaching the first, second and / or third bending radius is safe for the carrier (20) and / or for the flexible optoelectronic component (40) arranged on the carrier (20). [9] Beam (20) according to any one of claims 2 to 8, wherein the first bending radius is different from the second bending radius, the second bending radius is different from the third bending radius and / or the first bending radius is different from the third bending radius. [10] Carrier (20) according to one of claims 2 to 9, wherein the bending radius limiting bodies (32, 34, 36, 38) are arranged along a first straight line (37). [11] Carrier (20) according to one of claims 2 to 10, wherein the first and the second bend radius limiting bodies (32, 34) are arranged along a first straight line (37), the third bend radius limiting body (36) and at least one of the other bend radius limiting bodies (32, 34) are arranged along a second straight line (39), and the first straight line (37) and the second straight line (39) intersect. [12] Carrier (20) according to one of the preceding claims, wherein one, two or more of the bending radius limiting bodies (32, 34, 36, 38) are translucent or transparent. [13] Optoelectronic assembly comprising a carrier (20) according to one of the preceding claims and comprising a flexible optoelectronic component (40) arranged on the mounting surface of the carrier (20). [14] Optoelectronic assembly according to claim 13, wherein the flexible optoelectronic component (40) has an optically active area (50) and an optically inactive area (52) and wherein the bend radius limiting bodies (32, 34, 36, 38) are arranged such that they prevent the convex bending of the flexible optoelectronic component (40) in the optically active area (50) from the first bend radius and prevent the convex bending of the flexible optoelectronic component (40) in the optically inactive area (52) from the second bend radius. [15] Optoelectronic assembly according to claim 13, wherein the flexible optoelectronic component (40) has an optically active area (50) and an optically inactive area (52), and wherein the first and second elastic elements (F1, F2) have different spring constants and are arranged such that when the flexible optoelectronic component (40) is bent, they produce a different restoring force in the optically active area (50) than in the optically inactive area (52).