LED or OLED capacitive antenna for card
By using the second antenna in the data carrier to power the light emitting device when communicating with the remote device, the problems of high energy consumption and disturbance of the LED module are solved, and a low-energy consumption and low-cost light emitting design is realized.
Patent Information
- Application Number
- CN202380079691.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2022-11-21
- Filing Date
- 2023-11-16
- Publication Date
- 2025-07-22
AI Technical Summary
Power supply of LED modules in existing data carriers requires a higher turn count and energy consumption, resulting in greater energy consumption and perturbation to other antennas, while increasing manufacturing costs, and existing solutions require additional semiconductor components.
While using the first antenna to communicate with the remote device, the second antenna supplies power to the light-emitting device during communication, simplifies design and reduces disturbances, and realizes power supply through inductive coupling and capacitive connection, eliminating the need for additional electronic components.
Low energy consumption light emission is achieved, simplifying data carrier design, reducing communication disturbances, and reducing manufacturing costs.
Smart Images

Figure CN120359518A_ABST
Abstract
Description
Field of the Invention
[0001] The present invention relates to a data carrier according to claim 1, a security article comprising such a data carrier or consisting of such a data carrier according to claim 14, and a method for producing a data carrier according to claim 15. Prior Art
[0002] Data carriers such as smart cards or electronic tags for passports, payment cards for payment transactions, etc. are well known in the art. Such data carriers can provide identification or authentication, such as light emission indicating a successful payment transaction to the owner of the data carrier. For this purpose, a light emission device such as an LED module can be provided, which emits light when the payment transaction is successful. In order for the light emission device to emit light, the light emission device needs to be powered.
[0003] For this purpose, it is known to provide an LED antenna for powering the LED module. Disadvantages associated with such an LED antenna are the relatively high number of turns required on the LED antenna for powering the LED module, the relatively large energy consumption, and the perturbation of other antennas in the data carrier, such as the antenna of an electronic module. In addition, such an LED antenna is associated with manufacturing costs, and the LED illumination is relatively weak.
[0004] Other known solutions in which the LED module is switched on without any other energy than the energy from the reader field require semiconductors, which are provided as a supplement to the antenna, which thus requires additional components and is also associated with manufacturing costs. Summary of the Invention
[0005] It is an object of the present invention to provide a data carrier comprising a light emission device, which has a simple design and exhibits an illumination capability in which perturbations are minimized.
[0006] This object is achieved by a data carrier according to claim 1. That is, a data carrier for a security article is provided, wherein the data carrier comprises at least one electronic module, at least one first antenna, at least one second antenna, and at least one light emission device. The first antenna is coupled to the electronic module. The first antenna is configured to communicate with a remote device arranged remote from the data carrier. The electronic module is configured to communicate with the remote device via the first antenna. The second antenna is configured to communicate with the remote device, and wherein the second antenna powers the light emission device when the second antenna communicates with the remote device.
[0007] The electronic module is particularly preferably a commercially available electronic module. The electronic module preferably includes an internal microprocessor chip and optionally one or more contact pads. The contact pads can be conventional contact pads, such as those used in contact smart cards and configured to establish electrical contact with a remote device, such as a contact card reader. Such smart cards are commonly referred to as dual-interface smart cards. However, it is also conceivable that there are no contact pads and the data carrier is a contactless smart card. That is, the contact pads can be contactless pads and / or contact connection pads.
[0008] The fact that the first antenna is configured to communicate with a remote device means that the first antenna can establish communication with the remote device via a physical connection or via a contactless connection. The physical connection is preferably established by means of a wired connection. The contactless connection is preferably established via the field of action of the remote device. Similarly, the fact that the second antenna is configured to communicate with a remote device means that the second antenna can establish communication with the remote device via a physical connection (such as a wired connection) or via a contactless connection (such as via the field of action of the remote device).
[0009] Accordingly, the electronic module can have contact-type and contactless-type functions and can thus be a so-called combination module. However, the electronic module can also have only contactless-type functions and can be a so-called contactless electronic module.
[0010] In the case where the data carrier is a smart card, the smart card can thus be a so-called dual-interface smart card or a contactless smart card. In addition, various types of such smart cards are conceivable. For example, the smart card can be a full card or a combination card, a metal card, a biometric card, etc.
[0011] The first antenna and / or the second antenna preferably correspond to a wire, particularly preferably to a conductive wire (such as a copper wire).
[0012] Since the second antenna powers the light-emitting device when it communicates with the remote device, the present invention simplifies the design of the data carrier because no additional electronic components such as additional resistors or capacitors are required. In addition, the absence of such additional electronic components results in no disturbance to the communication established by the data carrier. In particular, any frequency characteristics of the first and second antennas of the data carrier are not modified.
[0013] Therefore, the communication between the first antenna and the remote device and / or the communication between the second antenna and the remote device is preferably wireless communication via electromagnetic radiation, in particular wireless communication via radio waves. Thereby, the remote device is preferably configured to emit electromagnetic radiation, in particular radio waves. The remote device particularly preferably corresponds to an RF reader known in the art. Therefore, it is preferred that the first antenna and / or the second antenna is in each case a radio frequency (RF) antenna, and / or the electronic module is an RF module. The RF module may also be referred to as an RF transponder when associated with the first antenna.
[0014] The light emitting device is preferably configured to be powered by the second antenna when the electronic module communicates with the remote device via the first antenna. However, the light emitting device may equally be configured to be powered by the second antenna in the absence of communication between the electronic module and the remote device.
[0015] That is to say, regardless of whether communication is established between the electronic module and the remote device, the light emitting device can be powered on when the second antenna is exposed to the action field of the remote device. In particular, the light emitting device is preferably configured to be powered with less energy than the electronic module.
[0016] The second antenna is preferably configured to power the first antenna when the second antenna communicates with the remote device.
[0017] That is to say, the second antenna is preferably configured as a booster antenna that enhances or improves the communication between the first antenna and the electronic module and the remote device. In other words, in the case where the first antenna is associated with the electronic module and thus forms a transponder, the second antenna can be regarded as a booster antenna for the transponder. Therefore, the second antenna can serve a dual role, that is, the second antenna can power both the light emitting device and the first antenna.
[0018] The second antenna and the first antenna are preferably inductively coupled to each other.
[0019] For this purpose, it is conceivable that the second antenna includes a coupling region, and the inductive coupling between the second antenna or the booster antenna and the first antenna is preferably established at the coupling region of the second antenna. The coupling region of the second antenna preferably corresponds to a spiral coil including one or more turns, which is formed by the second antenna in the form of a wire. The spiral coil or the coupling region is preferably arranged in the field of view of the first antenna to enhance the inductive coupling. However, it should be noted that the coupling region is not necessary for establishing the inductive coupling and is a purely optional feature.
[0020] The second antenna is preferably physically connected to the optical emission device. In other words, the second antenna and the optical emission device are preferably capacitively connected to each other. In particular, the second antenna preferably includes two end portions, and the second antenna is connected to the optical emission device at the two end portions.
[0021] In a first embodiment, the first antenna preferably surrounds the second antenna and preferably also surrounds the optical emission device.
[0022] In a second embodiment, the second antenna preferably surrounds the transponder provided by the electronic module associated with the first antenna.
[0023] In any case, it is conceivable that the first antenna and the second antenna are arranged in a common plane or in different planes with respect to the extension direction of the data carrier. In other words, when the extension direction is regarded as the vertical direction of the data carrier, the first antenna and the second antenna can be arranged such that they do not have or have a vertical offset with respect to each other and when viewed in the vertical direction along the data carrier. In still other words, when viewed in the cross-section of the data carrier, the first antenna and the second antenna can be located at the same vertical position or at different vertical positions within the data carrier.
[0024] The first antenna and the electronic module are preferably arranged in a common plane.
[0025] The second antenna and the optical emission device are preferably arranged in a common plane.
[0026] The spacing between the second antennas surrounding the first antenna or between the first antennas surrounding the second antenna is preferably at least 50 micrometers and / or 43 millimeters or less and / or particularly preferably about 200 micrometers with respect to the horizontal direction extending perpendicular to the extension direction or the vertical direction.
[0027] The first antenna and / or the second antenna are preferably produced by wire-embedded technology as is well known in the art.
[0028] The first antenna preferably includes at least one spiral coil having one or more turns.
[0029] The second antenna preferably includes a first spiral coil having at least one or more first turns and a second spiral coil having one or more second turns. The first spiral coil and the second spiral coil are preferably interleaved. That is, the second spiral coil of the second antenna preferably extends between the first turns of the first spiral coil of the second antenna.
[0030] The first turn of the second antenna is preferably wound in a first direction, and the second turn of the second antenna is preferably wound in a second direction, and the first direction and the second direction are the same as each other.
[0031] In particular, the first helical coil is preferably formed by a first turn that is wound in a plane and in a first direction and that additionally has an inter-turn space, and wherein the second helical coil is wound in a second direction that is the same as the first direction and that additionally forms a turn inside the specific inter-turn space in each case.
[0032] Alternatively, the first direction in which the first turn is wound and the second direction in which the second turn is wound are opposite to each other.
[0033] The turns of the first antenna are preferably wound in a direction that is different from the first direction and the second direction in which the first turn and the second turn of the second antenna are wound, and particularly preferably in a direction that is opposite to the first direction and the second direction.
[0034] The total number of turns of the second antenna is preferably at least 2 turns and / or 12 turns or less. The spacing between consecutive turns of the second antenna is preferably 50 micrometers or greater and / or 3 millimeters or less.
[0035] In particular, the number of first turns of the first helical coil is preferably equal to or greater than the number of second turns of the second helical coil. The number of first turns of the first helical coil is preferably 5 or less, but this number can also be higher if the size of the second antenna is larger. The number of second turns of the second helical coil is preferably 5 or less, but this number can be higher if the size of the second antenna is reduced. The spacing between the first turns of the first helical coil is preferably 400 micrometers or less, but this spacing can be larger when compensating for the number of first turns accordingly. The spacing between the second turns of the second helical coil is preferably 400 micrometers or less, but this spacing can be larger when compensating for the number of second turns accordingly. The inner spacing between the first turn of the first helical coil and the second turn of the second helical coil is preferably 200 micrometers or less, but this inner spacing can be larger when compensating for the number of turns accordingly.
[0036] The first helical coil and the second helical coil of the second antenna each preferably have a first end portion and a second end portion. The first end portion of the first helical coil is preferably connected to the light-emitting device. Additionally or alternatively, the second end portion of the first helical coil is preferably connected to the first end portion of the second helical coil. Additionally or alternatively, the second end portion of the second helical coil is connected to the light-emitting device.
[0037] The first helical coil is associated with a first inductance, and the second helical coil is associated with a second inductance, and wherein the second inductance is higher than the first inductance. Additionally or alternatively, the first inductance is positive, and / or the second inductance is negative.
[0038] That is to say, the first spiral coil of the second antenna preferably defines two end portions, and the second spiral coil of the second antenna extends from one of the end portions of the first spiral coil, and furthermore extends along and between the first turns of the first spiral coil.
[0039] The other end portion of the first spiral coil is preferably connected to the light-emitting device as mentioned above. The second spiral coil preferably extends from the first spiral coil at one of its end portions, and the other end portion of the end portions of the second spiral coil is preferably connected to the light-emitting device.
[0040] For this purpose, it is particularly preferred that the first spiral coil and the second spiral coil form a one-piece assembly, that is, form part of a one-piece second antenna. In other words, the end portions of the first spiral coil and the second spiral coil are not structural end portions or physical end portions, such as the free ends of individual wires.
[0041] The first spiral coil and the second spiral coil of the second antenna preferably form a mutual inductor.
[0042] The first spiral coil is preferably associated with a first inductance, and the second spiral coil is preferably associated with a second inductance. The second inductance is preferably higher than the first inductance. Additionally or alternatively, the first inductance is preferably positive, and / or the second inductance is preferably negative.
[0043] That is to say, the first spiral coil preferably has a first normal or positive inductance, such as 2 μH, and the second spiral coil has a second higher inductance. For example, the absolute value of the second inductance can be at least ten times as large as the first inductance. For example, the second inductance can be equal to -38 μH.
[0044] As previously mentioned, the second antenna is preferably a booster antenna, and furthermore, it is preferred that the booster antenna forms an antenna circuit. Therefore, it is particularly preferred that the booster antenna is a radio frequency antenna circuit that includes at least two spiral coils that are interlocked with each other and form a mutual inductor.
[0045] The second spiral coil preferably is equivalent to or imparts a capacitance / capacitor value. For example, if the second spiral coil is associated with a second inductance of -38 μH, the second spiral coil imparts a capacitance that is substantially equivalent to 33 pF.
[0046] In order to arrange the second spiral coil at least partially between the turns of the first spiral coil and to form a capacitance, it is preferred that the booster antenna includes at least one jumper or bridge of at least one turn located between the first spiral coil and the second spiral coil. Preferably, whenever the second spiral coil meets the end portion of the first spiral coil, the at least one jumper is provided so as to form a concentric design of the booster antenna.
[0047] The helical coil of the first antenna preferably includes a first end portion and a second end portion, and wherein the first end portion and the second end portion are connected to the electronic module.
[0048] The first antenna is preferably associated with an inductance. The inductance of the first antenna can be lower or higher than the inductance of the second antenna. In addition, the inductance of the first antenna can be positive or negative. Additionally, the length of the first antenna can be less than or greater than the length of the second antenna. However, the lengths of the first antenna and the second antenna can also be equal to each other.
[0049] The light-emitting device preferably corresponds to an LED module or an OLED module. The LED module or the OLED (organic LED) module is preferably a commercially available module known in the prior art. The light-emitting device (especially the LED module or the OLED module) is preferably configured to emit light in the ultraviolet region and / or the visible region and / or the infrared region of the electromagnetic spectrum. There can be two or more light-emitting devices, especially LED or OLED modules, wherein the two or more light-emitting devices are preferably connected in series with each other. Alternatively, the light-emitting devices can also be connected in parallel with each other.
[0050] The data carrier preferably further includes at least one carrier body, and wherein the electronic module and / or the first antenna and / or the second antenna and / or the light-emitting device are at least partially and preferably completely arranged within the carrier body.
[0051] The carrier body preferably corresponds to a card body known in the card industry. That is to say, the carrier body preferably includes one or more layers that are arranged above each other and extend in the extending direction. Preferably, two or more layers of the carrier body are connected to each other by means of lamination or the like.
[0052] In addition, these layers preferably contain at least one polymer and / or plastic or consist of at least one polymer and / or plastic and / or are transparent.
[0053] The electronic module and / or the first antenna and / or the second antenna and / or one or more light-emitting devices are preferably at least partially and preferably completely arranged within the card body.
[0054] For this purpose, it is particularly preferred that one or more of these components are arranged on a so-called insert or inlay as is well known in the card industry. The inlay or insert is preferably inserted into the carrier body or card body during a thermal lamination process of the carrier body or card body. Once laminated, the carrier body or card body is preferably milled in the area of the electronic module in order to receive the electronic module. If present, the antenna coupling area is preferably located below or beneath this electronic module area when viewed in the extension direction. The inlay or insert preferably contains one or more polymers and / or plastics or consists of one or more polymers and / or plastics, like the carrier body or card body. Although the electronic module is preferably arranged in a milled cavity in the card body, a light-emitting device such as an LED module or an OLED module can be arranged in a cavity provided in the inlay or insert or in a cavity provided in the card body. The cavity for the light-emitting device can equally be produced by milling as is known in the art. For this purpose, the light-emitting device is preferably arranged to illuminate the top side and / or bottom side of the data carrier, in particular the top side and / or bottom side of the card body.
[0055] The data carrier preferably also includes at least one security element, and wherein the light-emitting device is configured and / or arranged to illuminate the security element.
[0056] The security element is preferably an image and / or alphanumeric characters, such as an image or name of the holder of the data carrier. The security element can be provided in the form of printing, embossing, indentation, ablation, etc., as is known in the art.
[0057] The light-emitting device is preferably arranged and / or is preferably configured such that the light-emitting device illuminates the security element during enhanced communication between the antenna and the remote device.
[0058] On the other hand, a security article is provided that includes at least one data carrier as described above or consists of such a data carrier. The security article is preferably a smart card, passport, electronic tag, badge, travel ticket, etc.
[0059] Any interpretation herein regarding the data carrier equally applies to the security article that includes the data carrier or consists of the data carrier, and vice versa.
[0060] A security article consisting of a data carrier means that the data carrier provides the security article. For example, the data carrier can be a smart card. However, it is equally conceivable that the data carrier forms part of the security article. For example, the data carrier can be an electronic tag in the form of an e-passport embedded in a passport page of the security article. That is, the data carrier is preferably a form factor, particularly preferably a contactless form factor. For this purpose, it is particularly preferred that the data carrier is an electronic tag compliant with ISO 14443.
[0061] On the other hand, a method for producing a data carrier, preferably a data carrier as described above, is provided. The method comprises the steps of: i) providing at least one electronic module, ii) providing at least one first antenna, iii) providing at least one second antenna, and iv) providing at least one light emitting device. The first antenna is coupled to the electronic module. The first antenna is configured to communicate with a remote device arranged away from the data carrier. The electronic module is configured to communicate with the remote device via the first antenna. The second antenna is configured to communicate with the remote device, and wherein the second antenna powers the light emitting device when the second antenna communicates with the remote device.
[0062] Any explanations herein regarding the data carrier and the security article comprising or consisting of the data carrier apply equally to the method for producing the data carrier, and vice versa. Description of the Drawings
[0063] Preferred embodiments of the present invention will be described below with reference to the accompanying drawings, which are for illustrative purposes of the preferred embodiments of the present invention and not for limiting the preferred embodiments of the present invention. In the drawings,
[0064] Figure 1 An exploded view of a data carrier including a carrier body is shown, the carrier body having an inlay and an electronic module to be arranged within the carrier body;
[0065] Figure 2 Shows a top view of an inlay according to a first embodiment to be used in a data carrier according to Figure 1 , the inlay including a first antenna and a second antenna, an electronic module, and a light emitting device;
[0066] Figure 3 Shows a top view of an inlay according to a second embodiment to be used in a data carrier according to Figure 1 , the inlay including a first antenna and a second antenna, an electronic module, and a light emitting device. Detailed Description
[0067] Figure 1 A security article 100 composed of a data carrier 1 in the form of a smart card is schematically depicted. In particular, the data carrier 1 includes a carrier body 15, wherein the carrier body 15 may also be referred to as the card body of the smart card. The carrier body 15 here includes three layers 16, 17, 18 which are arranged above one another when viewed along the extension direction E or the vertical direction V. These layers 16, 17, 18 are preferably composed of transparent plastic. The layer 17 between the uppermost layer 18 and the lowermost layer 16 is a so-called inlay. The uppermost layer 16 and the lowermost layer 18 of the carrier body 15 and the inlay 17 are connected to each other, for example, by thermal lamination. Details of the inlay 17 will be referred toFigure 2 and Figure 3 are discussed. These figures depict in each case the actual inlay 17 according to the invention, and in particular the first antenna 3 and the second antenna 4, the electronic module 2, and the light-emitting device 5 of the actual inlay. Figure 1 The inlay 17 is schematic and serves the purpose of illustrating a conceivable assembly of the carrier body 15 of the data carrier 1.
[0068] As according to Figure 1 , the data carrier 1 includes an electronic module 2 which has an internal microprocessor chip 19 and contact pads 20 for contact protocol communication. These components are contained on a module substrate 21. Once laminated, a cavity 22 is milled into the carrier body 15, and the electronic module 2 is placed in this cavity. Thus, the electronic module 2, the first antenna 3 and the second antenna 4, and the light-emitting device 5 of the data carrier 1 according to the invention are completely arranged within the carrier body 15 or the card body.
[0069] As just mentioned, Figure 2 and Figure 3 depict in each case an embodiment of the inlay 17 according to the invention, wherein the inlay 17 includes a first antenna 3 and a second antenna 4 and a light-emitting device 5. In the depicted example, the electronic module 2 is also provided in the inlay 17. However, it should be noted that the electronic module 2, as well as the first antenna 3 and the second antenna 4 or the light-emitting device 5, can also be arranged elsewhere in the carrier body 15, for example in the uppermost layer 18 or the lowermost layer 16 of the carrier body 15.
[0070] The first antenna 3 is connected to the electronic module 2. The first antenna 3 is configured to communicate with a remote device (not shown) arranged remote from the data carrier 1. The electronic module 2 is configured to communicate with the remote device via the first antenna 3. The second antenna 4 is configured to communicate with the remote device, and wherein the second antenna 4 powers the light-emitting device 5 when the second antenna 4 communicates with the remote device. In the depicted example, the light-emitting device 5 corresponds to an LED module or an OLED module which can emit light in different regions of the electromagnetic spectrum depending on the type of the LED module or the OLED module. The second antenna 4 and the first antenna 3 are inductively coupled to each other. In addition, the second antenna 4 is physically connected to the light-emitting device 5. That is, the invention is based on the idea of using a capacitive antenna in the form of the second antenna 4 to switch on a light-emitting device such as an LED module or an OLED module 5.
[0071] Figure 2depicts a first embodiment, in which a first antenna 3 surrounds a second antenna 4 and also surrounds an optical emission device 5. In this embodiment, the second antenna 4 functions as a capacitive antenna that switches on the optical emission device 5 when the second antenna 4 is exposed to the field of action of a remote device. The first antenna 3 is connected to an electronic module 2, and the electronic module 2 preferably includes a contactless internal microprocessor chip and is a so-called combined electronic module or contactless electronic module.
[0072] Figure 3 depicts a second embodiment, in which the second antenna 4 surrounds a transponder 23 provided by an electronic module 2 associated with the first antenna 3. That is, the second antenna 4 functions as a power source for the optical emission device 5, with a capacitor integrated into the second antenna 4, which eliminates the need to use a physical capacitor. The second antenna 4 additionally functions as an enhanced antenna that powers the first antenna 3 when the second antenna 4 communicates with a remote device. The first antenna 3 is connected here to a contactless or dual-interface internal microprocessor chip 19 of the electronic module 2.
[0073] In both embodiments, the first antenna 3 includes a single helical coil 6 having a plurality of turns. The second antenna 4 respectively includes Figure 2 a first helical coil 7 having a plurality of first turns and a second helical coil 8 having a plurality of second turns in the embodiment depicted in Figure 3 and a first helical coil 7 including a plurality of first turns and a second helical coil 8 including a single second turn in the embodiment depicted in
[0074] In both embodiments, the second helical coil 8 of the second antenna 4 extends between and is interleaved with the first turns of the first helical coil 7 of the second antenna 4. The first turns of the first helical coil 7 of the second antenna 4 are wound in a first direction, and the second turns of the second helical coil 8 of the second antenna 4 are wound in a second direction, and the first direction and the second direction are the same as each other.
[0075] Furthermore, the turns of the first antenna 3 are wound in a direction opposite to the first direction and the second direction in which the first turns and the second turns of the second antenna 4 are wound.
[0076] The first helical coil 7 and the second helical coil 8 of the second antenna 4 each include a first end portion 9, a first end portion 11 and a second end portion 10, a second end portion 12. The first end portion 9 of the first helical coil 7 is connected to the optical emission device 5. The second end portion 10 of the first helical coil 7 is connected to the first end portion 11 of the second helical coil 8. The second end portion 12 of the second helical coil 8 is connected to the optical emission device 5.
[0077] The helical coil of the first antenna 3 includes a first end portion 13 and a second end portion 14, and the first end portion 13 and the second end portion 14 are connected to the electronic module 2.
[0078] In both embodiments, the first antenna, the second antenna, the electronic module, and the light emitting device are arranged in a common plane extending in a horizontal direction H perpendicular to the extension direction E or the vertical direction V.
[0079] Furthermore, in Figure 2 the embodiment depicted, the spacing s between the innermost turn of the first antenna and the outermost turn of the second antenna is preferably about 200 micrometers with respect to the horizontal direction H.
[0080] In Figure 3 the embodiment depicted, the spacing s between the innermost turn of the second antenna and the outermost turn of the first antenna is also preferably about 200 micrometers with respect to the horizontal direction H.
[0081] List of Reference Signs
[0082] 1 Data carrier 15 Carrier body
[0083] 100 Security article 16 Layer
[0084] 2 Electronic module 17 Layer
[0085] 3 First antenna 18 Layer
[0086] 4 Second antenna 19 Microprocessor chip
[0087] 5 Light emitting device 20 Contact pad
[0088] 6 Helical coil 21 Module substrate
[0089] 7 First helical coil 22 Cavity
[0090] 8 Second helical coil 23 Transponder
[0091] 9 First end portion
[0092] 10 Second end portion E Extension direction
[0093] 11 First end portion V Vertical direction
[0094] 12 Second end portion H Horizontal direction
[0095] 13 First end portion s Spacing
[0096] 14 Second end portion
Claims
1. A data carrier (1) for a security article (100), the data carrier comprising: - at least one electronic module (2), - at least one first antenna (3), - at least one second antenna (4), and - at least one light emitting device (5), wherein the first antenna (3) is coupled to the electronic module (2), wherein the first antenna (3) is configured to communicate with a remote device arranged away from the data carrier (1), wherein the electronic module (2) is configured to communicate with the remote device via the first antenna (3), characterized in that the second antenna (4) is configured to communicate with the remote device, and wherein the second antenna (4) powers the light emitting device (5) when the second antenna (4) communicates with the remote device.
2. The data carrier (1) according to claim 1, wherein the light emitting device (5) is configured to be powered by the second antenna (4) when the electronic module (2) communicates with the remote device via the first antenna (3) and / or in the absence of communication between the electronic module (2) and the remote device.
3. The data carrier (1) according to claim 1 or 2, wherein the second antenna (4) is configured to power the first antenna (3) when the second antenna (4) communicates with the remote device.
4. The data carrier (1) according to any one of the preceding claims, wherein the second antenna (4) and the first antenna (3) are inductively coupled to each other, and / or wherein the second antenna (4) is physically connected to the light emitting device (5).
5. The data carrier (1) according to any one of the preceding claims, wherein the first antenna (3) surrounds the second antenna (4) and preferably also surrounds the light emitting device (5), or wherein the second antenna (4) surrounds a transponder (23) provided by the electronic module (2) associated with the first antenna (3).
6. The data carrier (1) according to any one of the preceding claims, wherein the first antenna (3) comprises at least one spiral coil (6) having one or more turns, and / or wherein the second antenna (4) at least comprises a first spiral coil (7) having one or more first turns and a second spiral coil (8) having one or more second turns.
7. The data carrier (1) according to claim 6, wherein the second spiral coil (8) of the second antenna (4) extends between the first turns of the first spiral coil (7) of the second antenna (4), and / or wherein the first turns of the first spiral coil (7) of the second antenna (4) are wound in a first direction, and the second turns of the second spiral coil (8) of the second antenna (4) are wound in a second direction, and wherein the first direction and the second direction are equal to each other.
8. The data carrier (1) according to claim 7, wherein the turns of the first antenna (3) are wound in a direction different from the first direction and the second direction in which the first turn of the first helical coil (7) and the second turn of the second helical coil (8) of the second antenna (4) are wound, and preferably in a direction opposite to the first direction and the second direction.
9. The data carrier (1) according to any one of claims 6 to 8, wherein the first helical coil (7) and the second helical coil (8) of the second antenna (4) each comprise a first end portion (9; 11) and a second end portion (10; 12), and wherein at least one of the following: - The first end portion (9) of the first helical coil (7) is connected to the light emitting device (5), - The second end portion (10) of the first helical coil (7) is connected to the first end portion (11) of the second helical coil (8), and - The second end portion (12) of the second helical coil (8) is connected to the light emitting device (5).
10. The data carrier (1) according to any one of claims 6 to 9, wherein the helical coil of the first antenna (3) comprises a first end portion (13) and a second end portion (14), and wherein the first end portion (13) and the second end portion (14) of the first antenna (3) are connected to the electronic module (2).
11. The data carrier (1) according to any one of the preceding claims, wherein at least one of the following: - The light emitting device (5) corresponds to an LED module or an OLED module, - The light emitting device (5) is configured to emit light in the ultraviolet region and / or visible region and / or infrared region of the electromagnetic spectrum, - There are two or more light emitting devices (5), and the two or more light emitting devices are preferably connected in series with each other.
12. The data carrier (1) according to any one of the preceding claims, the data carrier further comprising at least one carrier body (15), and wherein at least one of the electronic module (2), the second antenna (4), the first antenna (3) and the light emitting device (5) is at least partially and preferably completely arranged within the carrier body (15).
13. The data carrier (1) according to any one of the preceding claims, the data carrier further comprising at least one security element, and wherein the light emitting device (5) is configured to and / or arranged to illuminate the security element.
14. A security article (100), the security article comprising at least one data carrier (1) according to any one of the preceding claims or consisting of the data carrier, wherein the security article (100) is a smart card, passport, electronic tag, badge, travel ticket, etc.
15. A method for producing a data carrier (1), preferably a data carrier (1) according to any one of the preceding claims, wherein the method comprises the following steps: - providing at least one electronic module (2), - providing at least one first antenna (3), - providing at least one second antenna (4), and - providing at least one light emitting device (5), wherein the first antenna (3) is coupled to the electronic module (2), wherein the first antenna (3) is configured to communicate with a remote device arranged remote from the data carrier (1), wherein the electronic module (2) is configured to communicate with the remote device via the first antenna (3), characterized in that the second antenna (4) is configured to communicate with the remote device and wherein the second antenna (4) powers the light emitting device (5) when the second antenna (4) communicates with the remote device.