Classifications

• • G—PHYSICS
  • G06—COMPUTING; CALCULATING OR COUNTING
  • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
  • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
  • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
  • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
  • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
  • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
• • G—PHYSICS
  • G06—COMPUTING; CALCULATING OR COUNTING
  • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
  • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
  • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
  • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
  • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
  • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
  • G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
• • G—PHYSICS
  • G06—COMPUTING; CALCULATING OR COUNTING
  • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
  • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
  • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
  • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
  • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
  • G06K19/073—Special arrangements for circuits, e.g. for protecting identification code in memory
  • G06K19/07309—Means for preventing undesired reading or writing from or onto record carriers
  • G06K19/07318—Means for preventing undesired reading or writing from or onto record carriers by hindering electromagnetic reading or writing
  • G06K19/07336—Active means, e.g. jamming or scrambling of the electromagnetic field
• • G—PHYSICS
  • G06—COMPUTING; CALCULATING OR COUNTING
  • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
  • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
  • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
  • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
  • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
  • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
  • G06K19/07701—Constructional details, e.g. mounting of circuits in the carrier the record carrier comprising an interface suitable for human interaction
  • G06K19/07703—Constructional details, e.g. mounting of circuits in the carrier the record carrier comprising an interface suitable for human interaction the interface being visual
• • G—PHYSICS
  • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
  • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
  • G09F13/00—Illuminated signs; Luminous advertising
  • G09F13/20—Illuminated signs; Luminous advertising with luminescent surfaces or parts
  • G09F13/22—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent
• • H—ELECTRICITY
  • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
  • H05K1/00—Printed circuits
  • H05K1/16—Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor

Definitions

• the invention relates to a flat carrier with an energy supply and an electroluminescent device.
• Data carriers with integrated circuits are used in the form of credit cards, bank cards, cash payment cards and the like in a wide variety of service sectors, for example in cashless payment transactions or in internal areas as access authorization.
• a data carrier is composed of at least two layers, a module being provided which has at least one semiconductor chip and contact elements and an energy supply for the semiconductor chip.
• the energy supply and / or the data exchange with external devices takes place in a contacting manner via the outer contact surfaces of an electronic module.
• Data carriers of this type have contact surfaces which are exposed for connecting the data carriers to a read / write device. There is a risk of contamination of the contact surfaces, which can result in faulty data transmission between the data carrier and the relevant read / write device of the terminal as a result of poor contact. Irrespective of this, faulty data transmission can also occur due to faulty positioning of the contact areas in the reading / writing device of the terminal.
• the object of the underlying invention is therefore to provide a device on a carrier which informs the user of an operating state.
• the invention is based on the idea that on a flat carrier which has an energy supply, one
• Electroluminescent device is attached.
• the electroluminescent device consists of two electrodes one above the other and an electroluminescent paste located between the electrodes.
• the electrodes of the electroluminescent device are connected to connections for the energy supply of the carrier.
• Electroluminescent devices consist, for example, of screen-printable, conductive polymer thick-film pastes or etched copper tracks, which are constructed as a capacitor structure.
• the light-active electroluminescent pastes consist of microencapsulated phosphors that are dispersed in a polymer matrix. These are at Layer structure brought between two electrodes, one of which is realized by a transparent, conductive layer.
• the finished electroluminescent device is a flexible film that is operated with alternating current.
• the energy supply to the electroluminescent device can be of different types depending on the carrier used.
• an electroluminescent device located on the carrier draws the energy from a coil, which is inductively coupled in by a read / write device.
• the electroluminescent device is supplied with AC voltage via the coil of the carrier. Since a coil can only provide energy when the carrier is in the effective range of a reading / writing device, the electroluminescent device can only light up when it is in the effective range. This could be used, for example, when using the contactless carrier as a visible control of an access authorization.
• the excitation of the electroluminescent device with a certain voltage and frequency must be ensured in this embodiment via the read / write device acting from the outside.
• a device must be provided between the electroluminescent device and the power supply for this purpose, which provides the voltage and frequency required by the electroluminescent device. This is the case, for example, when the carrier is used in an advantageous embodiment as a data carrier in the form of a chip card.
• Such a data carrier has a module, the module having at least one semiconductor chip and contact elements.
• the task of providing the required voltage and frequency is performed by a so-called inverter, which is provided in an integrated form and is advantageously accommodated in the module.
• the module can have an intelligent semiconductor chip, which is provided for data transmission or determination.
• the inverter can be designed as a separate semiconductor chip or can advantageously be integrated into the intelligent semiconductor chip provided for data transmission or determination. It is also conceivable that the coil that supplies the intelligent semiconductor chip is also used simultaneously as a power supply for the inverter and the electroluminescent device. However, the electroluminescent device and inverter can also be supplied via a separate coil.
• an energy store for example in the form of a battery, can be provided on the data carrier, which applies the missing energy difference.
• energy supply implies both the energy supply in a certain form and the inverter that may be necessary.
• the electroluminescent device is connected directly or via the inverter to the connections of a power supply, it is only indicated that the carrier is in the effective range of the reading / writing device.
• the electrodes of the electroluminescent device are connected in an advantageous embodiment to the intelligent semiconductor chip located on the carrier.
• the lighting of the electroluminescent device can be controlled by certain logic states of the intelligent semiconductor chip.
• the intelligent semiconductor chip also simultaneously takes on the function of the inverter for controlling the energy supply of the electroluminescent device.
• the intelligent semiconductor chip and the inverter can be designed as two semiconductor chips, the connection of the two semiconductor chips being made, for example, by conductor tracks or wires.
• the electroluminescent device and the contact elements of the semiconductor chip can be connected, for example, by means of conductor tracks.
• the electroluminescent device in a further embodiment, it is also conceivable to use the electroluminescent device, the size of which can be varied on the data carrier, as backlighting for a display device, for example a liquid crystal display (LCD). It is also conceivable to design the electroluminescent device as a 7-segment display, the display being advantageously controlled by the semiconductor chip. It would then be conceivable to use it as an electronic means of payment, which indicates an amount to be debited or debited. To do this, several 7-segment displays would have to be placed side by side in a suitable form.
• LCD liquid crystal display
• the carrier according to the invention consists of at least one layer. If the carrier is built up from only one layer, the module, the power supply and the electroluminescent device are encapsulated with a plastic, so that the electroluminescent device is visible from one side from the outside. The electrical connections are made before overmolding. If the carrier consists of several layers, these prefabricated layers are laminated on top of one another in a suitable manner.
• the flat support according to the invention is further characterized in that the electroluminescent device is covered by a transparent cover layer which forms the uppermost layer of the support. This has the advantage that the electroluminescent device cannot be damaged by external influences. The areas outside the electroluminescent device can be covered by color printing on the transparent film.
• the electroluminescent device on the outside of the cover layer of the carrier.
• the cover layer must have connecting elements, for example holes, so that an electrical connection of the electrodes of the electroluminescent device for supplying energy to the carrier can be established.
• the electroluminescent device is attached to the same layer as the module which has the at least one semiconductor chip and the contact elements.
• the carrier which consists of several layers, can be manufactured in the usual way.
• a modified production step is limited to the production of the inlay on which the module and, in the case of a contactless carrier, the coil are applied.
• the attachment of the electrical supply to the electrodes is particularly simple since only conductor tracks from the energy supply to the electrodes have to be provided in this layer. In the further construction of the support, however, care must be taken that the electroluminescent device is not covered by a non-transparent layer.
• the layer above must either be a transparent cover layer or have a transparent window at the locations of the electroluminescent device. If several layers are applied over the inlay, then all the layers must either be transparent or at least have a transparent cutout at the points at which the electroluminescent device is attached.
• the electroluminescent device is on a different layer than the module. If the semiconductor chip and the electroluminescent device are to be connected to one another, then at least the layer on which the electroluminescent device is attached and the layer on which the module is applied must have connecting elements and / or conductor tracks. If there are further layers between the layer with the electroluminescent device and the layer with the module, these layers must also have connecting elements or conductor tracks.
• the electroluminescent device is applied to a layer other than the module, this has the advantage that the semiconductor chip and the electroluminescent device can be supplied with energy by a separate coil located in the respective layer.
• the coils are not one above the other so as not to influence one another.
• FIG. 1 shows a carrier in the form of a chip card in plan view with an electroluminescent device
• FIG. 2 shows a two-layer carrier in cross section with an electroluminescent device on the outside of the cover layer
• FIG. 3 shows a three-layer carrier in cross section, the module and the electroluminescent device being in the same layer,
• FIG. 4 shows a four-layer carrier in cross section, the module and the electroluminescent device being located on different layers
• FIG. 5 shows a carrier in the form of a chip card in a top view, the electroluminescent device and module being connected via conductor tracks,
• FIG. 6 shows a carrier in the form of a chip card in a top view, the electrical supply taking place via external contact elements,
• Figure 7 shows a carrier in the form of a chip card top view, the electroluminescent device as
• FIG. 8 shows a carrier in cross section, which consists of one layer
• FIG. 9 shows a single-layer carrier in cross section
• Figure 10 shows the single-layer carrier from Figure 9 in plan view
• FIG. 11 shows a carrier in the form of a chip card in plan view, the electroluminescent device being a 7-
• Figure 1 shows a carrier 1 in the form of a chip card in
• the coil 6 serves to supply a semiconductor chip (not shown) on the data carrier 1 with energy and to take over the data exchange.
• the coil 6 also takes over the energy supply of an electroluminescent device 8 located on the carrier 1.
• the electroluminescent device 8 is made flat in the form of a rectangle, but it can also have a different shape.
• the electrodes (not shown) of the electroluminescent device 8 are connected to the coil 6 via an inverter (integrated, for example, in the HL chip), so that the electroluminescent device 8 when the data medium enters. gers 1 begins to glow in the effective range of a read / write device.
• FIG. 2 shows the carrier from FIG. 1 in cross section, wherein it is made up of two layers 2, 4.
• a module 5 and a coil 6 are applied in a base layer 4.
• the module 5 consists of a semiconductor chip that has integrated the function of the inverter and contact elements.
• the coil 6 takes over both the electrical supply of the module 5 and the electroluminescent device 8, which is located on the outside of a cover layer 2.
• the electrodes 12 of the electroluminescent device 8 are electrically connected to the coil 6 located on the base layer 4 via connecting elements 14 which are attached in the cover layer 2.
• module 5 is accommodated in a recess.
• FIG. 3 shows a further embodiment of the carrier 1 according to the invention in cross section, the module 5 and the electroluminescent device 8 being attached in one plane with layer 3.
• the data carrier 1 is constructed from a transparent cover layer 2, from an intermediate layer 3 on which the module 5, the electroluminescent device 8 and the coil 6 are located, and from a base layer 4.
• the module 5, which has at least one semiconductor chip and contact elements, is located in a recess in the intermediate layer 3.
• the exact attachment of the module 5 in the intermediate layer 3 is carried out in the usual manner depending on the module structure.
• the electrical supply from the module 5 and the electroluminescent device 8 is carried out via the coil 6 located on the intermediate layer 3.
• FIG. 4 shows in cross section a further embodiment of the carrier 1 according to the invention, the module 5 and the electroluminescent device 8 being located on different layers 3a, 3b.
• the intermediate layer 3b on which the coil 6 and the module 5 are located, represents an inlay known in the manufacture of data carriers the intermediate layer 3a, and interconnects 7, which are located on the intermediate layer 3b, are connected to the contact elements of the semiconductor chip located in module 5.
• the carrier 1 is closed off on the side on which the electroluminescent device 8 is located by a transparent cover layer 2 and on the opposite side by a base layer 4.
• the embodiments of the carrier shown in FIGS. 2 to 4 have in common that they are designed in the form of a chip card and that the energy supply is ensured by means of a coil.
• an energy store for example in the form of a battery, is attached to the carrier in addition to the coil.
• the contact elements of the module on the top of the carrier are accessible from the outside in order to take over a touching data exchange or a touching energy supply.
• the carrier in the form of the chip card is designed as a hybrid data carrier.
• the electroluminescent device if it is only electrically connected to the energy supply, it serves to indicate whether contact has been made with the reading / writing device. If the contact elements of the module or of the intelligent semiconductor chip are connected to the electrodes of the electroluminescent device, for example by means of conductor tracks and / or connecting elements, then these signal, for example, the transmission of certain data, for example a transaction.
• 5 to 7 show further variants of the data carrier according to the invention.
• FIG. 5 shows a carrier 1 which has a module 5, the contact elements 9 of which are accessible on the outside of the carrier 1.
• the carrier 1 then represents a hybrid module, since a coil 6 is also provided for contactless energy or data transmission.
• the coil 6 is connected to the contact elements 9 of the module 5.
• the electroluminescent device 8 is connected via conductor tracks 7 to contact elements 9 of the module 5 or semiconductor chips in order to indicate certain logical states in this way. It is also conceivable that only the energy supply is carried out via the contact elements.
• FIG. 6 shows a carrier 1 with contacts, in which the energy supply or data transmission takes place exclusively through contact elements 9 of a module 5 which is accessible from the outside.
• the electroluminescent device 8 is in turn connected to contact elements 9 of the module 5 via conductor tracks 7 in order to display logical states of the semiconductor chip or else to indicate the energy supply.
• FIG. 7 shows a carrier 1 in a top view, in which the electroluminescent device 8 is not shown flat, but in the form of a lettering.
• the shape of the electroluminescent device 8 can be of any type as long as a suitable attachment of the electrodes of the electroluminescent device 8 is ensured.
• the design of the electroluminescent device 8 as a lettering could, for example, be used for advertising purposes. It is also conceivable that a
• Electroluminescent device 8 is used as a backlight, for example for an LCD display. This can For example, in the case of a phone card, display credit that is still on the card.
• FIG. 8 shows an embodiment of the carrier with a layer, the module 5, the energy supply 6 in the form of a coil 6 and the electroluminescent device 8 being extrusion-coated with plastic.
• the electroluminescent device 8 is visible from the outside on one side of the carrier 1.
• the electrodes (not visible) of the electroluminescent device 8 are connected, for example, to the contact elements (not visible) of the module 5.
• Figure 9 shows a particularly simple embodiment of the carrier according to the invention in cross section.
• the carrier consists of a single layer 4, the coil 6 and the electroluminescent device 8 being attached to one side of the carrier 4.
• the electrodes (not shown) of the electroluminescent device 8 are connected to the coil 6.
• the voltage and frequency required to excite the electroluminescent device 8 must be impressed on the outside by the read / write device, since this embodiment has no inverter for correct voltage and frequency setting.
• Figure 10 shows the carrier according to the invention from Figure 9 in plan view.
• the design of the single layer 4 is round in this case.
• the coil 6, which is connected to the electrodes (not shown) of the electroluminescent device 8, is designed near the circumference of the carrier 4, for example as a printed conductive paste.
• FIG. 11 shows a further embodiment of the electroluminescent device 8 on a carrier 1 in a top view.
• the carrier 1 is shown in the form of a chip card, but can also have a different shape.
• the electroluminescent device 8 is in the form of a 7-segment display 15, with a 7-segment display 15 exactly one digit can represent.
• three 7-segment displays are shown side by side, which are controlled by the semiconductor chip 10.
• the number of 7-segment displays can vary up or down depending on the application. In such an embodiment, the invention could, for.
• B. Display amounts of money that are debited from the carrier trained as a cash card. In the same way, a credit could be displayed on the money card.
• the invention is used as a vignette for road traffic (e.g. on toll roads), the amount of money debited can be visually visible and possibly stored in the semiconductor chip.
• the carrier according to the invention need not be limited to the forms of representation shown in the figures. Any known type of carrier, as far as the execution of the layers on top of one another is concerned, can be carried out with an electroluminescent device.
• the electroluminescent device which is applied as a thick-film paste, can be used flexibly due to its small thickness. Due to the simple manufacturing technology of an electroluminescent device, an inexpensive and rational installation is possible without having to make major changes to the basic structure of a carrier.
• the shape of the carrier can also take on any other conceivable geometric shape (e.g. polygonal, round, etc.).

Landscapes

• Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• Computer Hardware Design (AREA)
• Microelectronics & Electronic Packaging (AREA)
• General Physics & Mathematics (AREA)
• Theoretical Computer Science (AREA)
• Electromagnetism (AREA)
• Computer Security & Cryptography (AREA)
• General Engineering & Computer Science (AREA)
• Credit Cards Or The Like (AREA)
• Illuminated Signs And Luminous Advertising (AREA)
• Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=7857202

Family Applications (1)

Country Status (7)

Families Citing this family (26)

Family Cites Families (14)

• 1998
  • 1998-02-10 DE DE19805282A patent/DE19805282A1/de not_active Withdrawn
• 1999
  • 1999-02-10 EP EP99907319A patent/EP1055190A2/de not_active Withdrawn
  • 1999-02-10 CN CN99804953A patent/CN1302418A/zh active Pending
  • 1999-02-10 KR KR1020007008734A patent/KR20010040839A/ko not_active Application Discontinuation
  • 1999-02-10 WO PCT/DE1999/000364 patent/WO1999041701A2/de not_active Application Discontinuation
  • 1999-02-10 JP JP2000531808A patent/JP2002503868A/ja not_active Withdrawn
• 2000
  • 2000-08-10 US US09/636,534 patent/US6414441B1/en not_active Expired - Fee Related

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events