EP1609121A1 - Marque de securite comportant une diode electroluminescente - Google Patents

Marque de securite comportant une diode electroluminescente

Info

Publication number
EP1609121A1
EP1609121A1 EP04712538A EP04712538A EP1609121A1 EP 1609121 A1 EP1609121 A1 EP 1609121A1 EP 04712538 A EP04712538 A EP 04712538A EP 04712538 A EP04712538 A EP 04712538A EP 1609121 A1 EP1609121 A1 EP 1609121A1
Authority
EP
European Patent Office
Prior art keywords
light
emitting diodes
security feature
product according
feature element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP04712538A
Other languages
German (de)
English (en)
Inventor
Christoph Brabec
Georg Wittmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP1609121A1 publication Critical patent/EP1609121A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/06—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using wave or particle radiation
    • G07D7/12—Visible light, infrared or ultraviolet radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/29—Securities; Bank notes
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/01—Testing electronic circuits therein
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K30/00—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation
    • H10K30/50—Photovoltaic [PV] devices

Definitions

  • Known valuable and security products contain a wide variety of security features, which are realized by various elements arranged on and / or in the valuable and security products, such as watermarks.
  • the object of the invention is to be able to implement a new security feature.
  • the security feature should be particularly easy to customize.
  • a product has a
  • Security feature element in particular for authentication of the product, with a light-emitting diode (LED, light-emitting diode).
  • LED light-emitting diode
  • the light emitting diode is preferably an organic light emitting diode.
  • the semiconductor in particular is an organic semiconductor.
  • other components of the organic light-emitting diode, such as the electrodes, can be made of organic material. The use of an organic light-emitting diode results in the advantage that the light-emitting diode can be produced in a semi-transparent manner and / or using printing technology.
  • the light-emitting diode can be operated by means of a battery arranged, for example, on or in the product respectively. However, it is particularly favorable if the product has a converter in order to convert ambient energy into electrical energy for the operation of the light-emitting diode of the security feature element.
  • the converter is preferably a solar cell, in particular an organic solar cell. Such an organic solar cell in particular can be realized very cheaply using thin-film technology, in particular printing. An organic solar cell can also be produced integrated with the light-emitting diode of the security feature element.
  • security feature element this can be inseparably and / or releasably connected to the product, in particular by lamination or printing, and / or only by destroying the security feature element.
  • Safety can be further increased if the product has a sensor, in particular a sensor for
  • Environmental influences with which the operation of the light-emitting diode of the security feature element can be influenced are, for example, photo detectors, in particular for UV light, temperature sensors and / or
  • the security feature element is preferably at least partially transparent and / or semi-transparent.
  • the light-emitting diode is transparent and / or semi-transparent. In this way, the security feature element can be hidden particularly well on the product.
  • a hidden security feature can therefore be realized, which is only perceptible when the light-emitting diode is in operation.
  • the product can consist of the security feature element.
  • the security feature element it is also possible for the security feature element to belong to a product in the form of a value and / or security product, in particular to a value and / or security document such as a bank note, a check form, a share, a personal document, a credit and / or check card, identification document and the like.
  • the security feature element preferably has a
  • a plurality or even a large number of light-emitting diodes each of which can have the properties mentioned above.
  • the large number of light-emitting diodes can be distributed in a specific pattern on the product.
  • the use of light-emitting diodes of different colors is also advantageous.
  • the light-emitting diodes can also be arranged and connected in an array, which enables particularly simple control.
  • Security feature element a corresponding coding can be stamped or imprinted. This can be achieved in the case of a security feature element with a large number of LEDs by changing and / or changing light-emitting diodes belonging to a selection from the large number of light-emitting diodes.
  • the change in the light-emitting diodes belonging to a selection from the large number of light-emitting diodes can already be carried out during the manufacture of the product and / or of the security feature element. Alternatively or in addition, it is also possible to provide the change later by a user.
  • the light-emitting diodes belonging to the selection are preferably changed and / or changeable by being deactivated and / or deactivated, in particular by destruction. If the deactivation is irreversible, this contributes to increased security, since the light-emitting diode cannot be put back into operation without authorization.
  • the light-emitting diodes can be modified or destroyed, for example, by suitable thermal action.
  • the light-emitting diodes belonging to the selection are advantageously changed and / or changeable by applying suitable current / voltage conditions.
  • the supply lines to the light-emitting diodes, which are already present, can be used inexpensively and only need to be electrically contacted accordingly.
  • Light-emitting diodes belonging to light-emitting diodes are therefore preferably used with the same contacts that would also be used to make these light-emitting diodes shine.
  • the light-emitting diodes belonging to the selection are therefore preferably changed such that the change is only visible during operation of the light-emitting diodes, and is invisible when the light-emitting diodes are switched off. So you can find a hidden one Realize security feature.
  • the light-emitting diodes belonging to the selection can be changed and / or changed by applying, for example, a short current pulse at a reverse voltage.
  • the reverse voltage can be, for example, -5 V to -20 V.
  • a device for individualizing a security feature element which has a multiplicity of light-emitting diodes, has corresponding means for this and is set up accordingly.
  • Advantageous configurations of the device result from the advantageous configurations of the product.
  • Security feature element with a plurality of LEDs are changed for a selection of the plurality of light-emitting diodes light-emitting diodes.
  • Advantageous refinements of the method result analogously to the advantageous refinements of the product.
  • 1 shows a value product with a security feature element.
  • FIG. 1 shows a value product 1 in the form of a bank note which has a security feature element 2 which contains light-emitting diodes 21, 22 which are arranged in a field in two rows one below the other.
  • the light-emitting diodes 21 arranged in the upper row are deactivated by applying a reverse voltage. As long as none of the light-emitting diodes is in operation, the deactivation of the light-emitting diodes 21 of the upper row is invisible, that is to say, it is visible to an observer no difference between the deactivated light-emitting diodes 21 of the upper row and the light-emitting diodes 22 of the lower row is visible.
  • the energy required for the operation of the light-emitting diodes is converted by an organic solar cell 3, which is integrated with the security feature element 2 and is constructed in thin-film technology. If light now strikes the organic solar cell 3, only the light-emitting diodes 22 of the lower row light up in the individualized security feature element 2 as described above, while the light-emitting diodes 21 of the upper row continue to be deactivated. For example, a country code or a year of manufacture can be stamped on a euro bill.
  • security feature elements can, for example, also be applied to bottles, packaging, clothes etc. or be integrated therein.
  • security feature elements based on organic electronics provide active security features in which information to be coded can be individually matched to each product, in particular document.
  • one exemplary embodiment is a combination of an organic solar cell with one or more organic light-emitting diodes, the combination of the luminous pixels, ie the light-emitting diodes, containing the coded information.
  • Polymer solar cells and polymer displays made of or with light-emitting diodes or organic solar cells can be produced inexpensively by conventional printing processes or more complexly by PVD processes on a wide variety of substrates such as foils, glass, sheets, paper, etc. It is possible to use both the solar cell and the display Light emitting diodes, semi-transparent or completely absorbent. These two applications thus meet all the requirements for hidden integration into a security document.
  • the products mentioned are semitransparent, they can be applied over any lettering, logo, photo, image, etc., so that they cannot be recognized as security features.
  • An organic thin-film display made of light-emitting diodes with an organic solar cell can therefore be used as a hidden security feature.
  • a solar cell can operate a combination of light-emitting diodes. Both the arrangement and the color of the individual light-emitting diodes provide the security feature that represents the coded information.
  • the coded information is only stamped on the end user via PC.
  • the embossing can be carried out in such a way that it leaves no visible traces, so the security feature is still hidden.
  • the stamping can also be carried out in such a way that the other components, such as organic ones, required for the operation of the security feature element
  • an individual sequence of light-emitting diodes from a high-resolution diode array is encoded and activated by deactivating the other pixels in the form of light-emitting diodes.
  • the array can have 100 x 10 pixels in the form of light-emitting diodes.
  • Pixels in the form of light-emitting diodes provide more than 10 ⁇ 2 coding options.
  • the active security feature elements based on organic light-emitting diode arrays are easy to check, unambiguously recognizable and difficult to forge, and they exert a visual stimulus for the observer in the case of a certain environmental influence, for example when intense light is irradiated.
  • the security feature element results in an intelligent, active security feature that is not obvious and more and more over the next few years Will gain importance in the document market and in the chip card market. All requirements for such a security feature are met:

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

L'invention concerne un produit comprenant un élément de type marque de sécurité qui est pourvu d'une diode électroluminescente.
EP04712538A 2003-03-28 2004-02-19 Marque de securite comportant une diode electroluminescente Withdrawn EP1609121A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10314162 2003-03-28
DE10314162A DE10314162A1 (de) 2003-03-28 2003-03-28 Sicherheitsmerkmal mit einer Licht emittierenden Diode
PCT/EP2004/001623 WO2004086315A1 (fr) 2003-03-28 2004-02-19 Marque de securite comportant une diode electroluminescente

Publications (1)

Publication Number Publication Date
EP1609121A1 true EP1609121A1 (fr) 2005-12-28

Family

ID=33038797

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04712538A Withdrawn EP1609121A1 (fr) 2003-03-28 2004-02-19 Marque de securite comportant une diode electroluminescente

Country Status (3)

Country Link
EP (1) EP1609121A1 (fr)
DE (1) DE10314162A1 (fr)
WO (1) WO2004086315A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005030626A1 (de) * 2005-06-30 2007-01-04 Bundesdruckerei Gmbh Sicherheitsdokument mit integriertem Schaltkreis und Anzeigesystem
DE102006043119A1 (de) * 2006-09-08 2008-03-27 Bundesdruckerei Gmbh Sicherheits- und/oder Wertdokument mit einem Typ II Halbleiterkontaktsystem
EP1988514A1 (fr) 2007-05-04 2008-11-05 Acreo AB Circuit de document de sécurité
DE102007000881A1 (de) * 2007-11-12 2009-05-14 Bundesdruckerei Gmbh Dokument mit einer integrierten Anzeigevorrichtung, Verfahren zur Herstellung eines Dokuments und Lesegerät
DE102007000873A1 (de) * 2007-11-12 2009-06-04 Bundesdruckerei Gmbh Dokument mit einer integrierten Anzeigevorrichtung
DE102016116132A1 (de) 2016-08-30 2018-03-01 Osram Oled Gmbh Optoelektronisches Bauelement und Verfahren zum Herstellen desselben

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003057500A1 (fr) * 2002-01-10 2003-07-17 Bundesdruckerei Gmbh Document de valeur ou de securite presentant un commutateur
WO2003057502A1 (fr) * 2002-01-10 2003-07-17 Bundesdruckerei Gmbh Document de valeur ou de securite a elements led

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3745132C2 (de) * 1987-01-13 1998-03-19 Hoegl Helmut Photovoltaische Solarzellenanordnung mit mindestens zwei auf Abstand voneinander angeordneten Solarzellen-Elementen
US4773944A (en) * 1987-09-08 1988-09-27 Energy Conversion Devices, Inc. Large area, low voltage, high current photovoltaic modules and method of fabricating same
US6819244B2 (en) * 2001-03-28 2004-11-16 Inksure Rf, Inc. Chipless RF tags

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003057500A1 (fr) * 2002-01-10 2003-07-17 Bundesdruckerei Gmbh Document de valeur ou de securite presentant un commutateur
WO2003057502A1 (fr) * 2002-01-10 2003-07-17 Bundesdruckerei Gmbh Document de valeur ou de securite a elements led

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2004086315A1 *

Also Published As

Publication number Publication date
DE10314162A1 (de) 2004-12-16
WO2004086315A1 (fr) 2004-10-07
WO2004086315A8 (fr) 2004-12-23

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