WO2003057502A1

WO2003057502A1 - Valuable documents or security documents comprising led elements

Info

Publication number: WO2003057502A1
Application number: PCT/EP2002/014457
Authority: WO
Inventors: Anett Bailleu; Dieter Sauter
Original assignee: Bundesdruckerei Gmbh
Priority date: 2002-01-10
Filing date: 2002-12-18
Publication date: 2003-07-17
Also published as: DE10214369A1; DE10214370A1; DE10214371A1; DE20200358U1; DE50212457D1; AU2002352256A1; DE10214369B4; ATE399651T1

Abstract

The invention relates to a valuable document or security document (1) that comprises one or more LED elements (2) as a security feature. The LED element (2) is supplied with power by an energy source (3) via lines (4) and (5). Energy source (3) is preferably a passive energy source, that is a solar cell or an antenna. The invention allows for the provision of public features or biometric data for the purpose of identification and/or authentication by personalization of the LED element (2).

Description

Value or security document with LED elements

description

It is known from the prior art to provide security or security documents, such as banknotes, identity cards, driver's licenses, stamps, entrance tickets, tokens, credit cards, check cards, shares, packaging and the like, with security features that counterfeit or unauthorized modification make such documents difficult or even impossible. The "document" is in

in this sense also referred to below as a product which is provided with a corresponding security feature.

Well-known security features include watermarks. Such watermarks are visible in the back light and then show a specific motif or a number, such as the nominal value of the relevant banknote.

Another security feature is the security thread. The security check takes place in such a way that a darker line must be visible in the backlight.

Furthermore, it is known to apply special film strips with security features, such as holograms. The holograms make it possible, for example, for different symbols or numbers to appear when a banknote is tilted, depending on the viewing angle.

Furthermore, the use of pearlescent strips is known for realizing security features. When the banknote is tilted, a gold-colored stripe is visible, for example, in which a symbol and the respective value number can be recognized. Such a pearlescent strip is, for example, on the 20-euro note.

The security features mentioned are so-called “public features”, that is to say security features that can be checked by anyone without the aid of special devices and without special knowledge being required.

The invention has for its object to provide an improved value or security document, as well as a system for checking a security feature and a method for producing such a value or security document.

The object on which the invention is based is achieved in each case with the features of the independent patent claims. Preferred embodiments of the invention are specified in the dependent claims. According to the invention, a security feature is implemented by means of one or more LED elements of the value or security document. The LED elements are preferably applied using printing technology. The use of organic LEDs, so-called OLEDs, is generally particularly advantageous.

A value or security document equipped according to the invention with one or more organic, light-emitting diodes (LED), preferably OLEDs, shows, among other things, in relation to the prior art. the following benefits:

OLEDs are light-intensive and therefore very easily verifiable as a security feature even under normal ambient light conditions. With OLEDs, so-called "public features" such as patterns, shapes, lettering, numbering, logos, etc. can be displayed in an impressive manner on a value or security document.

- A security feature deposited by an (O) LED element is tamper-proof, since the production of functional (O) LEDs is technologically very demanding.

According to a preferred embodiment of the invention, LEDs of different colors are located on the value or security document. The color can be used as an additional information parameter, for example for coding.

According to a further preferred embodiment of the invention, a plurality of LEDs which can be “personalized” are applied to the value or security document. This means that initially a predetermined pattern, for example a matrix of LEDs, is applied to the value or security document, for example in terms of printing technology A subset of these LEDs is then specifically activated or deactivated in order to encode information in this way.

The encoding of information in the LEDs through targeted activation or deactivation is referred to as "personalization". Depending on the application, different information. For example, personal data is encoded in an identification document by personalization of the LEDs, such as name, address, date of birth and / or biometric data and / or image information. For other applications, the information can be, for example, a bank or a value, such as postage in the case of stamps or the deposit value in the case of packaging. Manufacturer-specific information can also be stored by personalization, such as a serial number or the like. Personalization can take place at different stages in the production or use of the value or security document. One possibility is that the personalization is carried out directly by the manufacturer of the value or security document. For this it is necessary that the information to be stored is already available at the stage of the production of the value or security document. Another possibility is that a "blank" of the value or security document is first produced, which has a non-personalized LED matrix. This blank is then personalized by the user by specifically activating or deactivating LEDs of the matrix. In the case of an identity card, this can be done for example, by the authority that issues the identity card. In the case of credit cards and the like, personalization can be carried out by the financial institution.

For the production of the blank of the value or security document, a matrix of functional LEDs is preferably produced. A subset of these LEDs is then selectively destroyed in order to store the desired information in the LED matrix. The selective destruction of the LEDs of this subset can take place thermally, for example, with a laser beam.

According to a preferred embodiment of the invention, the personalization of the LEDs encodes products. This can be done in such a way that a value or security document is integrated in the packaging of the product in question and / or in the product itself. Information about the manufacturer of the product, such as a serial number or the like, is then encoded in the value or security document. Such coding can also be used as a protective measure against product piracy. Another application is the coding of, for example, a deposit value, for example on a bottle label by means of an appropriately personalized OLED matrix on the label.

According to a preferred embodiment of the invention, the personalization of the LEDs saves biometric information parameters on the value or security document. Such biometric information parameters can be, for example, the characteristic points for a fingerprint or iris scan or for a face recognition routine. For storing the position of such characteristic points, it is particularly advantageous if they are mapped onto a two-dimensional LED matrix, the LED matrix being personalized accordingly. A conversion of the characteristic points, for example into a numerical code, is then omitted, which saves corresponding computing effort, in particular for reading the position of the characteristic points.

According to a further preferred embodiment of the invention, an energy source for the voltage supply of the LEDs is present on the value or security document. This energy source is preferably a passive energy source, that is to say an energy converter which draws energy from the environment and converts it into electrical energy.

According to a preferred embodiment of the invention, one or more solar cells are used as the passive energy source.

According to a further preferred embodiment of the invention, one or more antennas on the value or security document are used as the passive energy source. When a signal of a suitable frequency is received, the antenna generates sufficient energy for the voltage supply of the LEDs. It is possible to provide antennas for different frequencies in order to achieve a coding effect in this way too. For example, Different antennas connected to LEDs of different colors, so that the color impression changes when passing through the frequency range.

According to a further preferred embodiment of the invention, the passive energy sources and OLEDs are arranged on the same carrier. The carrier can be, for example, a layer made of polyethylene, polyester, glass or paper. It is particularly advantageous that both OLEDs and solar cells can be produced as thin layers, with layer thicknesses in the micrometer range. In this way, it can be optimally integrated into the value or security document. The manufacture of such OLEDs is known per se from “OLED Matrix Displays: Technology and Fundamentals”, Polytronic 2001, Conference Processings, October 21-24, 2001; the manufacture of solar cells as thin layers is known per se from “Plastic Solar Cells ", Adv. Funct. Mater. 2001, 11, No. 1, February, pages 15 to 26.

It is particularly advantageous that LEDs, preferably OLEDs and solar cells, can also be produced using printing technology, for example using inkjet printing processes, screen printing, letterpress printing, gravure printing, planographic printing or other printing processes. The production of printed conductors by printing technology is already known per se.

In all embodiments of the electrodes, an electrode must always be designed to be transparent over the entire surface. To ensure this, an electrode is preferably constructed from ITO material.

According to a further preferred embodiment of the invention, one or more metal threads are used in the value or security document for the realization of antennas. The introduction of metal threads into banknotes is known per se; the metal threads are introduced into the paper which is used to produce the banknotes during the paper production. Such a manufacturing method can also be used to insert metal threads into a value or security document according to the invention in order to implement one or more antennas. The invention also provides a system for checking a security feature on a document which is implemented by means of an LED matrix. Such a system has an energy source to deliver energy to the passive energy source of the value or security document. For example, a transmitter can be used as the energy source for the system in order to couple an electromagnetic field into the antennas of the document in order to make the LEDs light up. Alternatively or additionally, a light source is provided for supplying energy to the solar cell present on the value or security document.

Such a system can be used, for example, to check biometric features. For this purpose, the biometric features of the person concerned are first recorded by the system in order to then compare them with the features coded in the LEDs.

The embodiments of the invention can be implemented both with LEDs and with OLEDs, the implementation using OLEDs being preferred, in particular because of the better possibility of producing the OLEDs using printing technology.

Preferred exemplary embodiments of the invention are explained in more detail below with reference to the drawings. Show it:

FIG. 1 shows a first embodiment of a value or security document according to the invention with an LED element,

FIG. 2 shows a second embodiment of the value or security document with an LED matrix,

FIG. 3 shows a third embodiment of a value or security document with an antenna for coupling an electromagnetic field,

FIG. 4 shows a diagram for determining the optimal half dipole length as a function of the frequency to be coupled in, FIG. 5 shows a fourth embodiment of the value or security document with two different antennas for coupling in different frequencies,

FIG. 6 shows a fifth embodiment of the value or security document, in which a metal thread is used to implement an antenna,

FIG. 7 shows a sectional illustration of the embodiment in FIG. 6,

FIG. 8 shows a sectional illustration of a fifth embodiment of the value or security document,

FIG. 9 shows a block diagram of an embodiment of a system for checking a security feature.

FIG. 1 shows a document 1. Document 1 is a value or security document, such as a bank note, an identity card, passport, driver's license or the like. At least one LED element 2 is located on or in the document 1. The LED element 2 is preferably realized using thin-film technology, with a layer thickness in the micrometer range. In this case, an optimal integration into document 1 is given.

Glass is preferably suitable as a support for the realization of the LED element 2. Glass has the best barrier properties against oxygen and water, but only allows bending radii that are restricted at the bottom. Indium titanium oxide (ITO) glass, for example, is suitable as the glass carrier material. If small bending radii are to be achieved, the use of flexible supports, such as supports made of plastic, paper or ITO film, is preferred.

There is also an energy source 3 on document 1. Energy source 3 is an active or a passive energy source. For example the energy source 3 can be implemented as an active energy source in the form of a printed battery.

In contrast to a battery, a passive energy source draws energy from the environment in order to convert it into another form of energy. In order to implement such a passive energy source, the energy source 3 can be designed as a solar cell or as an antenna.

The energy source 3 serves to supply current and / or voltage to the LED element 2 via the lines 4 and 5. Preferably, the LED element 2, the energy source 3 and the lines 4 and 5 are implemented on the same carrier. This has the advantage that the arrangement consisting of LED element 2, energy source 3 and lines 4 and 5 can be integrated into document 1 in the form of a uniform layer.

A particular advantage of OLEDs is that they are generally very light-intensive and can therefore be recognized under normal ambient light conditions. A security feature given by the OLED element 2 can therefore be very easily verified without the document 1 having to be held in the backlight or under a special illumination source.

The LED element 2 can be a single light-emitting diode that lights up as soon as a voltage supply from the energy source 3 takes place. However, it can also be a plurality of light-emitting diodes, which are arranged, for example, in a specific pattern. A corresponding arrangement of the LEDs can then be used to represent numerical or alpha-numeric codes or also lettering, numbering, logos and other symbols.

Since the production of LED elements is technologically very demanding, the security feature realized by LED element 2 is practically not falsified. If the LED element 2 lights up after the activation of the energy source 3, the authenticity of the document 1 is checked. In addition to checking the authenticity of document 1, other applications are also possible, for example for authentication purposes. This is explained in more detail below, in particular with reference to FIG. 9.

FIG. 2 shows a further embodiment of document 1. Elements in FIG. 2 which correspond to elements in FIG. 1 are identified by the same reference symbols.

In the embodiment in FIG. 2, the energy source 3 is designed as a solar cell 6. The production of solar cells using thin-film technology is known per se from the prior art.

The LED element 2 of FIG. 1 is designed as an LED matrix 7 in the embodiment of FIG. Several LEDs are arranged in matrix form in the LED matrix 7. The production of such an LED matrix 7 is also known per se from the prior art, in particular in thin-film technology. In turn, the solar cell 6 and the LED matrix 7 are preferably produced on the same carrier and also galvanically connected via the lines 4 and 5 via this common carrier. These lines and an electrode of both source and feature can in particular consist of one and the same material, the same layer, preferably ITO, i.e. can be applied in one production step.

The LED matrix 7 is connected to the energy source - in this case the solar cell 6 - in such a way that each LED of the LED matrix 7 is supplied with a sufficiently high voltage. For this purpose, the LEDs of the LED matrix are preferably connected in parallel or controlled individually.

After the thin-film element consisting of the solar cell 6, the LED matrix 7 and the lines 4 and 5 has been produced, the LED matrix 7 is personalized. Personalization here means that a specific subset of LEDs of the LED matrix 7 is destroyed in a targeted manner. The targeted destruction of certain LEDs can thermally. For this purpose, a laser beam can be used, which is directed briefly at the LEDs of the LED matrix 7 to be destroyed.

This personalization creates a pattern of functional LEDs in the LED matrix 7. When the solar cell 6 supplies energy, the corresponding LEDs of the LED matrix 7 light up, so that the pattern can be viewed or checked by a user or a sensor for checking the security feature can be included. In a further exemplary embodiment, the luminous pattern shown by the LED matrix 7 can be machine-readable, for example by showing a barcode or coded or uncoded biometric features.

The coding of characteristic points for fingerprint, Iris or face recognition can be carried out particularly advantageously by mapping the relevant characteristic points in accordance with their position on the two-dimensional LED matrix 7 and personalizing the LED matrix 7 accordingly. This eliminates the otherwise necessary conversion of the spatial position of such characteristic points into coded numerical values. This saves in particular the processing effort otherwise required for the decoding, since the spatial position of the characteristic points can be deduced directly from the arrangement of the luminous points of the LED matrix 7.

FIG. 3 shows a further embodiment of document 1. Document 1 has an LED element 8 for realizing a security feature. The LED element 8 is connected to an antenna 9. The antenna 9 serves to supply the electrical energy for the LED element 8. For this purpose, the antenna 9 converts the energy of an electromagnetic field from an external transmitter into electrical energy for the voltage supply of the LED element 8.

The antenna 9 is preferably designed such that it is matched to the transmission frequency of a conventional mobile telephone 10. If the document 1 is brought near the antenna of the mobile telephone 10, a corresponding electromagnetic field is coupled into the antenna 9 so that the LED element is connected to the voltage. worries and shines. In this way, a "public feature" can be implemented.

The antenna 9 is preferably designed as a Hertzian dipole antenna and printed on the carrier of the LED element 8, so that the module consisting of the LED element 8 and the antenna 9 is in turn a uniform layer, for example in the form of an insert in document 1 can be integrated.

FIG. 4 shows the optimal half dipole length of such a Hertzian dipole antenna in cm as a function of the frequency in Hz. If a standard mobile radio frequency of 900 MHz is used, the length is 8.3 cm for half the dipole length; in the case of the likewise common mobile radio frequency of 1.8 GHz, this results in a half dipole length of 4.2 cm. The half dipole length is therefore preferably in a range of approximately 3-5 cm or in a range of approximately 7-10 cm.

FIG. 5 shows a further embodiment of document 1. Document 1 contains groups of LEDs 11 which are connected to antennas 16 via lines 12. Each antenna 16 has half a dipole length L for coupling in a transmission frequency. As soon as an electromagnetic field is coupled to which the antennas 16 are tuned, the LEDs 11, which are connected to the antenna 16 via the lines 12, are supplied with voltage and light up.

Furthermore, there are groups of LEDs 14 on the document 1, which are connected to one another via lines 15 and each with an antenna 13. Each antenna 13 has a half dipole length of 1 for coupling in a higher transmission frequency compared to the antennas 16. If the document 1 is in a corresponding electromagnetic field, enough energy is coupled in via the antenna 13 to transmit the LEDs 14 via the lines 15 to be supplied with voltage and to make it glow.

In the embodiment of FIG. 5, each group of LEDs 11 or LEDs 14 is connected in parallel, so that the same voltage is applied to each OLED of a group. The LEDs 11 and the LEDs 14 preferably have different colors. If, for example, the document 1 is brought into the area of a transmitter that "sweeps" through the relevant frequency range, the LEDs 11 and the LEDs 14 alternately light up in different colors.

When the relevant frequency range is passed quickly, the different colors overlap. A specific "verification transmitter" with fixed or "sweeping" transmission frequencies can be used for this, so that different groups of LEDs can be lit in a selectable rhythm.

For example, there may be 1 group of red, blue and green LEDs on the document to achieve RGB color mixing. The LEDs of a certain color are each connected to one or more antennas that are tuned to the same color-specific transmission frequency. When driving quickly through the frequency ranges to which the different color-specific antennas are tuned, an additive mixed color can be generated in this way by superimposing the color intensities.

Basically, there are various implementation options for the "verification sender":

The transmitter has predetermined frequencies that are tuned to the corresponding antennas on document 1. The various transmission frequencies are switched on selectively in order to check the presence of the corresponding LED group by lighting these LEDs.

The transmitter runs through a frequency continuum which includes the frequencies to which the various antennas on document 1 are tuned. tet. In this way too, the LEDs of the different

Groups lit up.

Depending on the switching frequency of the different transmitter frequencies or the speed with which the frequency continuum is traversed, the effect is that different groups of LEDs light up at different times or there is a mixed color due to the inertia of the eyes when switching quickly or quickly Pass through the frequency continuum.

Another possibility is to connect one or more LEDs with two or more antennas of different lengths for differentiated frequency tuning, so that the LEDs light up twice with each switching cycle or with each passage through the frequency continuum.

FIG. 6 shows an embodiment of document 1 in which a metal thread 17 is used for the voltage supply of the LED element 18. Such a metal thread 17 is often present, for example, in banknotes as a security thread that is visible in the backlight.

In the embodiment of FIG. 6, the metal thread 17 is interrupted in order to implement a Hertzian dipole antenna. The two antenna poles realized by the metal thread 17 are connected to the LED element 18 for its voltage supply. In this way, a particularly high degree of security can be achieved in that the metal thread 17 serves on the one hand as a security thread and on the other hand has the function of lighting the LED element 18 in order to implement an additional “public feature” ,

FIG. 7 shows the document 1 of FIG. 6 in the area of the LED element 18 - here embodied as an OLED element - on average. Document 1 has a carrier 35, for example made of paper. The LED arrangement is delimited at the bottom by an encapsulation layer 21. This can be, for example, a layer of glass or a plastic film. The metal thread is located above the layer 21 17 (see FIG. 6), which is interrupted in the area of the LED element 18 in order to implement a Hertzian dipole. The LED element 18 contains a photoactive layer 19. The photoactive layer 19 projects into the region of the interruption of the metal thread 17, so that a voltage is applied to the photoactive layer 19 as soon as an electromagnetic field is coupled in via the metal thread 17. The photoactive layer 19 consists for example of conductive polymers, mefhanfullerenes, poly 3 hexyltriphenes or the like.

An electrode layer 20 is located above the photoactive layer 19. The electrode layer 20 can consist, for example, of gold or another sputtered metal layer and serves to take over the function of the counterelectrode and is preferably designed as a half-sided Hertzian dipole antenna. In the exemplary embodiment in FIG. 7, however, it only serves to establish contact between the photoactive layer 19 and the second part of the Hertzian diplomatic antenna 17. The metal thread 17 thus performs the function of the counter electrode. An ITO layer, for example an ITO film, or a sputtered metal layer or the like can also be used as material for the realization of the counter electrode.

The LED element 18 is bounded at the top by a further encapsulation layer 36.

The various layers in document 1 are designed in such a way that light can be emitted from the photoactive layer 19 either upwards, downwards or in both directions from the surface of the document 1. For this purpose, for example, the carrier 35 and the encapsulation layer 21 and / or the electrode layer 20 and the further encapsulation layer 36 are transparent.

FIG. 8 shows an alternative layer structure of document 1. From top to bottom, document 1 consists of an upper laminate 24, a layer 25 for one or more LEDs and one or more energy sources, a carrier layer 26 and a lower laminate 27. The upper laminate 24 serves as protection against mechanical influences and consists of a polyester (PET) layer 28 and a polyethylene (PE) layer 29.

The layer 25 also has - from top to bottom - a PE layer 29 with a thickness of, for example, 25 μm. This is followed by the encapsulation layer 21 with a layer thickness of not more than 100 μm. This is followed by the photoactive layer 19 including electrodes on both sides with a layer thickness of approximately 300 nm to at most a few μm.

The photoactive layer 19 is followed by a layer 30 which, for example, consists of glass or a plastic film. Layer 30 in turn serves for encapsulation against oxygen and water. A PE layer 29 then follows again.

One or more LEDs are thus implemented on layer 30 by photoactive layer 19. Furthermore, energy sources (cf. solar cell 6 of FIG. 2, as well as antenna 9 of FIG. 3, antennas 13 and 16 of FIG. 5 and also metal thread 17 of FIG. 6) can also be applied to the same layer 30. It is also advantageous to realize the galvanic connection of the photoactive layer 19 with the energy source (s) also on the layer 30.

The carrier layer 26 is, for example, a structure as is known per se from conventional identity cards. For example, the identity card document 23 is encapsulated up and down by a PE layer. The identity card document 23 is, for example, an insert made of special paper. The layer thickness of the identity card document 23 is approximately 100 μm, while the layer thicknesses of the delimiting PE layers are in each case approximately 50 μm.

The lower laminate 27 in turn consists of a PE layer 29 and a PET layer 28. This in turn forms a protective layer. The materials for the layer structure of document 1 are selected such that there is transparency with respect to the photoactive layer 19 (the LED and possibly the solar cell) at least in one window area, so that the light emitted from there is directed upwards can be emitted below or in both directions.

According to a further embodiment, a further security feature, for example in the form of a film with hologram structures, can be located between the PE layers 29 of the layer 25 and the carrier layer 26. Such a further security feature can, for example, alternatively or additionally be located between the identity card document 23 and the PE layer 29 or between two adjacent PE layers 29.

The carrier layer 25, on which the LED elements and the energy sources are located, is preferably first produced separately and then introduced into the document 1 in a lamination process as an inlay. Due to the very good barrier properties of the carrier material layer 30 and the cover layers against oxygen and ambient moisture, good long-term stability of the functionality of the LED and the energy sources is guaranteed. A particularly good long-term stability of approx. 30,000 operating hours is achieved with a glass carrier and glass top layer. This results in layer thicknesses of approximately 100 to 200 μm for the entire functional layer structure (carrier layer 25), which is to be integrated into document 1.

FIG. 9 shows a block diagram of a system for checking a security feature, which is given by an LED element on document 1. In the application of FIG. 9, the LED element is a personalized LED matrix 7 (cf. FIG. 2). The personalization shows biometric features of a person in the LED matrix 7.

The system has a biometric recognition system 31. This can be, for example, a system for obtaining biometric features from a person's face, iris or fingerprint. The biometric detection system 31 is connected to a camera system 33 via a line 32. The camera system 33 is used to record the light pattern generated by the LED matrix 7. The light pattern of the LED matrix 7 recorded by the camera system 33 is transmitted via the line 32 to the biometric recognition system 31 and there is compared in a comparator 34 with the biometric data of the person concerned.

In one application, document 1 is an ID card. For an access or border control, a person must identify himself with the ID. This is done in such a way that the document 1 is placed below the camera system 33, so that the biometric data coded in the LED matrix 7 are transmitted via the camera system 33 and the line 32 to the biometric recognition system 31. The camera system preferably includes a CCD camera.

In addition, the biometric data are recorded directly by the person through the biometric recognition system 31, for example by means of face recognition, iris scan or by recording the fingerprint. The biometric data determined directly by the person are then compared in the comparator 34 with the biometric data coded in the LED matrix.

If there is a sufficient match between the biometric data recorded directly by the person and the biometric data stored in the LED matrix 7, the person concerned is considered to be identified and to be the true holder of the identity card. The system then emits a corresponding visual and / or acoustic signal, for example via the display 38. In this way, access or border control can be carried out automatically.

In addition to or as an alternative to the biometric data, further data, such as the name, the address, the date of birth and further personal data, can also be shown in coded or uncoded form in the LED matrix 7. There is also an energy source 37 on the camera system 33, for example in the form of a light source and / or a transmitter. The light source and / or the transmitter serve to emit energy for the passive energy source of document 1 in order to make the LEDs of the LED matrix light up.

The system of FIG. 9 can also be used if the LED element is not designed as a personalized LED matrix, for example for reading corresponding security features on packaging and the like. In this case, a system for character recognition can be provided instead of the biometric recognition system 31.

The wavelength of the luminaire as energy source 37 is preferably chosen so that the solar cell of document 1 works particularly efficiently, so that the LEDs light up particularly brightly or can only exceed their excitation threshold due to the special choice of the wavelength of the luminaire. In this way, in addition to a public feature, a security feature can be implemented, which can only be checked by means of the system in FIG. 9.

LIST OF REFERENCE NUMBERS

LED element 2

Energy source 3

Line 4

Line 5

Solar cell 6

LED matrix 7

LED element 8

Antenna 9

Mobile phone 10

LED 11

Lines 12

Antenna 13

LED 14

Lines 15

Antenna 16

Metal thread 17

LED element 18

Photoactive layer 19

Electrode layer 20

Encapsulation layer 21

Identity card document 23

Upper laminate 24

Layer 25

Carrier layer 26

Lower laminate 27

PET layer 28 PE layer 29

Layer 30

Biometric recognition system 31

Line 32

Camera system 33

Comparator 34

Carrier 35

Encapsulation layer 36

Energy source 37

Advert 38

Claims

Protection claims

1. Value or security document with at least one LED element (2; 7; 8; 11; 14; 18) for displaying a security feature.

2. Value or security document according to claim 1 with a plurality of LED elements, the LED elements preferably having different colors.

3. Value or security document according to claim 1 or 2, wherein the LED element is a personalizable or a personalized LED matrix (7).

4. Value or security document according to claim 3, wherein the LED matrix for storing or displaying a numerical and / or alpha-numeric

Codes, a symbol or biometric data is formed.

5. Value or security document according to one of the preceding claims 1 to 4, with an energy source located on the document (3; 6; 9; 13; 16; 17).

6. Value or security document according to claim 5, wherein the energy source is one or more solar cells (6).

7. Value or security document according to claim 5 or 6, wherein the passive energy source is on the same carrier (30) as the LED element and is galvanically connected to the LED element via this carrier.

8. Value or security document according to claim 5, 6 or 7, in which the energy source is designed as an antenna.

9. value or security document according to claim 8, with a first antenna (13) for coupling a first frequency and a second antenna for coupling a second frequency (16), wherein the first antenna with a first set (11) of LED Elements is electrically connected and the second antenna is electrically connected to a second set (14) of LED elements.

10. Value or security document according to claim 9, wherein the LED elements of the first set and the second set are each connected in parallel.

11. Value or security document according to claim 9 or 10, wherein the LED

Elements of the first set have a first color and the LED elements of the second set have a second color, so that when an electromagnetic wave of a first frequency is coupled in, the first set of LED elements lights up and when an electromagnetic wave of a second frequency is decoupled, the second set of LED elements and when changing the frequency of an electromagnetic wave and / or simultaneously coupling electromagnetic waves of the first and the second frequency, a color change or a mixed color arises.

12. Value or security document according to one of the preceding claims 8 to 11, wherein at least one LED element is connected to at least two antennas for the coupling of a first and a second frequency.

13. Value or security document according to one of the preceding claims 1 to 12 with a glass, polyester, polyethylene and / or paper support layer.

14. Value or security document according to one of the preceding claims 1 to 13, in which the photoactive layer of the LED element is applied by printing.

15. Value or security document according to one of the preceding claims 1 to 14, in which the energy source, in particular the antenna and / or the solar cell, is applied by printing technology.

16. System for verifying a security feature with

Means (31) for recording a comparison feature, the comparison feature preferably being a biometric feature or a character,

- means (37) for supplying energy to a passive energy source on a value or security document,

Means (33) for receiving a security feature from the value or security document,

Means (34) for comparing the security feature with the comparison feature.

17. The system of claim 16, wherein the means for supplying the energy comprise a high-frequency transmitter and / or a light source.

18. A method for producing a value or security document according to one of the preceding claims 1 to 15, characterized in that the LED element is applied by printing.

19. The method according to claim 18, wherein the solar cell is applied by printing, preferably on the same support as the LED element.

20. The method according to claim 18 or 19, wherein the antenna and / or further electrical or electronic circuit elements are applied by printing.