EP2188799B1 - Flexible multilayer foil - Google Patents
Flexible multilayer foil Download PDFInfo
- Publication number
- EP2188799B1 EP2188799B1 EP08802006A EP08802006A EP2188799B1 EP 2188799 B1 EP2188799 B1 EP 2188799B1 EP 08802006 A EP08802006 A EP 08802006A EP 08802006 A EP08802006 A EP 08802006A EP 2188799 B1 EP2188799 B1 EP 2188799B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- decorative layer
- layers
- layer system
- film body
- display 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.)
- Active
Links
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- 230000004913 activation Effects 0.000 claims abstract description 32
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Images
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
- G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
- G09F3/02—Forms or constructions
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/04—Signs, boards or panels, illuminated from behind the insignia
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
- G09F3/02—Forms or constructions
- G09F3/0291—Labels or tickets undergoing a change under particular conditions, e.g. heat, radiation, passage of time
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
- G09F3/08—Fastening or securing by means not forming part of the material of the label itself
- G09F3/18—Casings, frames or enclosures for labels
- G09F3/20—Casings, frames or enclosures for labels for adjustable, removable, or interchangeable labels
- G09F3/208—Electronic labels, Labels integrating electronic displays
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
Definitions
- the invention relates to a multilayer flexible film body, in particular a label film or packaging film, with a carrier layer and a decorative layer system which provides optically recognizable information, as well as uses of such a film body and a system comprising such a film body.
- a Mehrschiechtiger flexible film body according to the preamble of claim 1 is made WO200611622 known.
- the invention is based on the object to provide an improved multilayer flexible film body and uses of such a film body, which can be used in particular as a label film or packaging film use.
- the invention makes it possible to provide a package with novel optical effects, to provide optical dynamic labels with novel functions and to integrate additional functions in outer packaging.
- the decorative layer system comprises one or more layers, which form a sensor element for detecting an external activation signal, wherein the sensor element is connected directly or via an electronic circuit to the display element.
- the display element Upon receipt of the activation signal, the display element is activated and the visually recognizable information of the decorative layer system made visible.
- the following energy sources and influences can be used as activation signals for activating the display element: Electromagnetic alternating field, in particular RF or RF fields, probe, sound, temperature, conductivity, air humidity, pressure, capacity and light.
- the decorative layer system in each case has one or more layers which form a sensor element for detecting these energy sources and influences.
- the optical effect of the decorative layer system can be activated by an electromagnetic alternating field as an external activation signal and that the decorative layer system comprises one or more antenna structures for detecting the electromagnetic alternating field forming electrically conductive layers as a sensor element for detecting the electromagnetic alternating field serve.
- suitable antenna structures are used as antenna structures for the respective frequency range used, for example coil-shaped antennas, dipole antennas, bipolar antennas or capacitive coupling structures.
- the optical effect of the decorative layer system is activated by an alternating electromagnetic field as an external activation signal and the decorative layer system has one or more at least partially plate-shaped electrically conductive layers for capacitive coupling of the electromagnetic alternating field, as a sensor element (e) for detecting serve the electromagnetic alternating field.
- a sensor element e
- Such coupling of the activation signal represents a particularly robust solution, which enables a selective and targeted activation of the film body.
- the display element or the electronic circuit is designed so that the display element remains activated after a single activation, preferably the activation of the display element can not be reversed. After activation, the visually recognizable information thus remains permanently visible. This can be achieved on the one hand by the use of monostable display elements, on the other hand by an electronic circuit which keeps the display element permanently in the activated state after receiving the activation signal.
- the decorative layer system comprises one or more layers forming a sensor element for detecting an external deactivation signal and that the sensor element is connected directly or via an electronic circuit to the display element such that the display element upon receipt of deactivation Signal is deactivated. Furthermore, it is also possible for the display element to remain activated only as long as the activation signal is detected by the sensor element.
- the multilayer body has a switching element which activates the display element after a predefined timeout.
- the appearance of the decorative layer system changes with time.
- the decorative layer system has one or more layers that form an electrical energy source.
- This electrical energy source is in this case connected directly or via a switching element with the display element.
- the decorative layer system thus preferably comprises two or more layers, which one Form electrochemical flat battery as an electrical energy source.
- the decorative layer system has one or more electrically conductive layers, which are at least partially formed as a flat coil for the inductive coupling of energy from an electromagnetic alternating field, wherein the flat coil with a tuning capacitance and a rectifier as an energy source for generating a DC is interconnected.
- the decorative layer system has one or more electrically conductive layers, which are formed at least in regions as plate-shaped metal surfaces for the capacitive coupling of energy from an alternating electromagnetic field, the plate-shaped metal surfaces with a rectifier and a capacitor as an energy source for generating a direct current are interconnected.
- the decorative layer system has one or more preferably organic solar cells having layers as an energy source, or one or more layers consisting of a piezoelectric material which, for example, kinks or bending or heat or cold action of the film body one of the corresponding electrode layers generated and generated by a capacitor voltage pulse generate.
- the decorative layer system as an energy source one or more electrodes for Recording of generated by friction and electrostatic charge carrier has.
- the decorative layer system here has a serving as an energy storage capacity, which is charged by the energy sources described above and is connected directly or indirectly to the display element.
- a power source combined of two or more of the above energy sources, e.g. a piezoelectric element or a solar cell with a battery.
- an electronic circuit is provided between the power source and the display element, which may include, inter alia, a switching element which establishes or interrupts the connection between the power source and the display element.
- the electronic circuit is preferably formed by two or more layers of the decorative layer system, which forms an organic electronic circuit comprising one or more semiconductive layers applied from a solution.
- the electronic circuit is in this case on the one hand connected to the power source and on the other hand to the display element and controls the activation of the display element.
- a switching element here are preferably organic field effect transistors use.
- the decorative layer system comprises two electrode layers and one or more layers arranged between the electrode layers comprising a nematic or choleric liquid crystal material, an electrochromic material, an electroluminescent material or an organic (or inorganic) phosphor, which form the electrically controlled display element
- the display element may thus have, for example, spheres filled with liquid crystal enclosed in a polymer matrix, which can be aligned by an electrical voltage and thus can be switched from opaque to transparent.
- cholesteric liquid crystal materials can also be used.
- electrochromic materials the color of the display element changes when the dye is reduced by an electrochemical reaction. In an electroluminescent substance, phosphorus is excited to glow via an alternating electric field.
- thermochromic layer which is arranged adjacent to an electrical heating element, for example a meander-shaped conductor track, in the decorative layer system. When a voltage is applied to the heating element, it heats up and the thermochromic material of the thermochromic layer changes its color. It can be used as energy-activated, monostable or bistable display elements.
- one or more layers of the display element are preferably formed in the form of the optically recognizable information, so that upon activation of the display element, the optical effect of the decorative layer system changes in this area and the optically recognizable information becomes visible.
- the optically recognizable information is formed by one or more, preferably colored layers, which are arranged from the viewer's point of view above or below the display element and visible to the viewer upon activation of the display element, for example by this Layers are no longer obscured to the viewer become visible or by changing the background.
- one or both of the electrodes of the display element is formed by an unstructured electrode layer which is structured by overprinting with an electrically non-conductive printing material in negative form of optically recognizable information such that the electrodes only in the region of optically recognizable information have an electrically conductive surface in contact with the electrochromic material, the electroluminescent material or the organic / inorganic phosphor.
- a thermal transfer wax as the insulator for such a structuring of the electrode layer or of the electrode layers.
- the wax layer is printed on the electrode layer by means of a thermal transfer printer.
- the thermal transfer printer is fed with a thermal transfer film which has a carrier film and a wax layer of a thermal transfer wax applied thereto.
- the thermal transfer wax layer is produced by a thermal transfer printhead that is digitally driven, partially melted and in each case a small area of the transfer layer of the thermal transfer film transferred to the electrode. In this transfer, adjacent areas of the areas transferred to the electrode of the thermal transfer wax layer melt, so that on the one hand the thermal load of the decorative layer system remains low and a secure insulation of the deactivated areas of the electrode - even in the edge regions of the electrode - is achieved.
- the thermal transfer layer has a particularly good resistance to the photoactive materials used by the display element, for example luminescent materials, organic or inorganic phosphors, and thus the reliability of the display element is improved by the use of such an insulator layer.
- the decorative layer system provides two or more different visually recognizable information and several layers of the decorative layer system form two or more electrically controlled display elements, by the activation of which one of the different optically recognizable information becomes visible.
- the film body is used as an optically dynamic label in an overall system.
- This system consists of a radio activator and a variety of optically dynamic labels that can be used on a variety of products due to the cost-effective production for marketing purposes.
- the optically dynamic labels can be charged, for example, in the packaging industry, for example on chip bags.
- various information such as images or numbers for a raffle can be hidden behind the ad.
- packs are distributed on each of which an activatable logo as visible, optically identifiable information is. There are only a limited number of variations of the logo provided (eg heart, star, champagne glass).
- outer packaging There are so two or more different groups of outer packaging provided, wherein the outer packaging of the same group each have the same activatable information that is different from the activatable information of the other group. Further, it is also possible that a further group of outer packaging is provided, which have a non-activated optically dynamic label corresponding optical appearance, but do not have an electrically controlled display element. Such "dummies" can limit the odds of winning.
- the film body according to the invention for tickets, brand protection elements (eg labels), lots, playing cards or other games or to design it as an RFID tag with additional optical information,
- the electrically controlled display elements may also be segmented, e.g. to build a 7-segment element (representation of numbers or letters). Furthermore, a plurality of electrically controlled display elements can be provided next to one another, which when activated make different logo elements or information elements visible.
- the display elements can be designed so that the visually recognizable information is visible only when activated directly (eg by pressing a button or by direct action of an electromagnetic alternating field), flashes or - with different display elements - these elements are activated one after the other and so information is displayed one after the other. Furthermore, the display elements can also be permanently activated and the information so remain permanently visible by a single activation or be switched back by a "reset" signal.
- the activator which transmits a predefined alternating electromagnetic field, can activate the logos at the manufacturer's stand as part of a raffle.
- the optically dynamic label can also be used as a means of payment.
- the logo can be activated at the cash desk after payment and become visible. After the goods issue, the symbol is deactivated again. This process can be repeated.
- the display element may also be permanently activatable, i. the information is retained after a single activation.
- the multi-layer body according to the invention can also serve as an intelligent and interactive operating manual. By activation, e.g. Additional information on the product, handling or its usability are displayed.
- the multilayer body according to the invention can serve as a security feature for identifying the authenticity of products.
- the manufacturer can recognize by activation whether or not the product is a copycat product and, in the case of warranty claims or the disposal of products, determine whether the goods actually come from him and he is obliged to provide services or not.
- the film body according to the invention can also be used as a label for the monitoring of electronic components.
- certain components may not be exposed to strong electrical or magnetic fields.
- a multi-layer body according to the invention can be used as an indicator for such products or their packaging.
- the film body in this case has a sensor element for detecting the electric or magnetic fields and the display element is activated as soon as the predefined limits are exceeded.
- the film body according to the invention can also be used as a label for the monitoring of foods and be charged for this purpose to the food or its packaging.
- the film body in this case, for example, Sensor elements for detecting the temperature of the foodstuffs (cold chain), monitoring the duration of the light (for example UV-sensitive products) or the tightness of the packaging (detection of the oxygen content, nitrogen content, water, etc.). If the predefined limits are exceeded, the display element is activated and the information, for example a warning, is made visible.
- film bodies according to the invention forms an interactive poster in which an activation signal can trigger a change in a layout or a graphic of the poster.
- an interactive behavior pointing applications are possible, for example, integration of the film element in a T-shirt (or other garments), a bracelet, a clock or a trailer, where also the optical display element can be selectively activated.
- the film body of the invention can be adhered as a label on packaging or surfaces. Furthermore, there is the possibility that the film body is pushed into a packaging with it. It is also possible that in the packaging a recess corresponding to the dimension of the display element, for example, is punched and the film body attached from the back exactly to the recess on the packaging, for example, is glued to the package. In this case, the display element is preferably adapted to the color of the packaging or surface. Furthermore, it is also possible that the film body itself represents a packaging film for outer packaging and the display element and further components (energy source, electronics, sensor element) are applied by printing processes during the production of the packaging film. In this case, the film body according to the invention is preferably produced in a roll-to-roll process essentially by means of a printing process.
- the figures Fig. 1 and Fig. 2 show a film body 1, which has a carrier layer 10 and a decorative layer system 11.
- the film body 1 may also have further layers, for example adhesive layers, protective layers or adhesion-promoting layers.
- the carrier layer 10 is preferably a plastic film, in particular polyester, Polyethylene, polycarbonate, polypropylene, polyetheretherketone ketone, polyetheretherketone, polyamide, polyphthalamide, syndiotactic polystyrene, polyvinylidene difluoride, polytetrafluoroethylene having a layer thickness of 12 to 100 ⁇ m.
- the decorative layer system 11 consists of several layers, which are preferably applied in structured form by means of a printing process, for example gravure printing or pad printing, in a roll-to-roll process.
- Fig. 2 shows here, for example, a plurality of electrically conductive layers 12, 14 and 16, a layer 13 of an optically active material and a layer 15 of electrically non-conductive material. These electrical functional layers are encapsulated by means of a protective layer 17.
- the electrical functional layers of the decorative layer system 11 are formed to its sensor element 2, which serves to detect an alternating electromagnetic field.
- the electrically conductive functional layer 12 - as in Fig. 1 indicated - formed in the form of two plate-shaped metal surfaces 21 and 22, which the capacitive coupling of the serve electromagnetic alternating field in the film body 1.
- the electrical functional layers of the decorative layer system 11 are arranged and shaped to form an organic electronic circuit.
- an electronic circuit 3 is provided, which is connected on the one hand with the sensor element 2 and on the other hand with a display element 4 via electrically conductive connection paths.
- the electronic circuit 3 has a built-up of one or more organic diodes or field effect transistors rectifier and a downstream smoothing capacitor and thus converts the capacitor plates 21 and 22 capacitively coupled electromagnetic alternating field in a DC signal.
- the electronic circuit 3 In the area of the electronic circuit 3, further layers not shown here are provided in the decorative layer system 11 in addition to the layers 16, 15 and 12 which form the smoothing capacitor, in particular electrically conductive layers and electrically semiconducting layers, which functional layers of the organic field-effect transistors or organic diodes that form the rectifier. Furthermore, it is also possible for the electronic circuit 3 to contain further components, for example a switching element, which comprises the Power supply to the display element controls or a logic circuit which decodes, for example, an information modulated on the coupled electromagnetic alternating field information and / or signals from other sensor elements, logically linked this information and causes an application of the display element by means of the switching element in accordance with predefined conditions.
- a switching element which comprises the Power supply to the display element controls or a logic circuit which decodes, for example, an information modulated on the coupled electromagnetic alternating field information and / or signals from other sensor elements, logically linked this information and causes an application of the display element by means of the switching element in accordance with predefined conditions.
- These components are constructed by the arrangement and formation of electrical functional layers comprehensive electrically conductive functional layers, electrically semiconductive functional layers and electrically non-conductive functional layers, by means of which preferably an electronic circuit based on organic field effect transistors, capacitors and resistors is constructed essentially by means of printing.
- the functional layer 13 consists of a material which changes its optical properties upon application of an electric field or during an electric current flow.
- the layer 13 thus consists for example of a polymer matrix with cavities which are filled with a nematic or cholesteric liquid crystal material, so that upon application of an electric field a change in the optical appearance of the Layer 13 results.
- the layer 13 can also consist of an electrochromic material, an electroluminescent material, an electrophoretic material or of an organic luminescent material, it also being possible for further layers to be provided between the layers 12 and 13 here.
- One or more of the layers 12, 13 or 14 are formed in the region of the display element 4 in the form of optically recognizable information, so that upon activation of the display element 4, ie when applying a voltage to the terminals of the display element 4, the visual appearance of the display element 4 changed in the range of optically recognizable information and the optically recognizable information 5 is optically visible.
- electrically conductive functional layers preferably thin metal layers in the thickness range between about 1 and 5 nm are used, for example consisting of copper, aluminum, silver, gold or a metal alloy. Furthermore, it is also possible for the electrically conductive functional layers-in particular in the region of the display element 4-to consist of a transparent conductive material such as ITO or TIO x or of an organic conductive material such as PEDOT / PSS, pani or carbon nanotubes.
- the electrically semiconducting functional layers of the decorative layer system 11 preferably consist of a organic semiconductors, for example polythiophene, polyterthropes, polyfluorene, pentacene, tetracenes, oligotropes, inorganic silicon embedded in a polymer matrix, nano-silicon or polyarylamine or carbon nanotubes.
- the layer thickness of the organic semiconductor layer is preferably between 5 nm and 1 ⁇ m.
- the semiconductor layer is applied from a solution, for example an aqueous solution, by means of a printing process, for example a gravure printing process or tampon printing process, or else by spin coating, spraying or casting.
- the electrically semiconducting functional layer can also be formed from a layer consisting essentially of inorganic substances which are applied from a solution.
- the layer can consist of a layer of an inorganic semiconductor applied from a solution, for example nanoparticles of an inorganic semiconductor, for example silicon, which are applied from a solution by means of one of the above-mentioned methods, with a layer thickness between 5 nm and 1 ⁇ m.
- the decorative layer system 11 it is also possible not to produce the decorative layer system 11 in a single, continuous production process, but to manufacture individual components of the decorative layer system 11, for example the electronic circuit 3 and / or the display element 4, separately in a roll-to-roll process and then, for example, applied to the electrically conductive functional layer 12 and electrically connected to the corresponding other components by means of an electrically conductive adhesive.
- the in Fig. 1 shown film body 1 is separated after production and applied, for example as a label on a game card.
- the film body 1 forms part of a system which includes a variety of other playing cards, which also with a according Fig. 1 configured film body are provided, the display elements, however, provide a different from the optical information optical information, and further comprise a matched to the sensor 2 activator.
- the activator points here also two plate-shaped metal surfaces which are matched to the metal surfaces 21 and 22. With appropriate coverage of the associated plates of the activator and the respective game card is a coupling of the electromagnetic alternating field, which is rectified by the electronics 3 and converted into a DC voltage, which activates the display element 4 and makes the information visible.
- Fig. 3 shows a product marking system with an activator 7 and a film body 6.
- the film body 6 is like the film body 1 after Fig. 1 and 2 constructed, with the difference that by means of the arrangement and formation of the electrically conductive, electrically semiconductive and electrically insulating layers of the decorative layer system 11 in the film body 6 thereof, different functions are implemented in the decorative layer system.
- the film body 6 thus has a sensor element 61, a sensor element 64, an electronic circuit 62, a power source 63 and a display element 65, which are formed as described above by the arrangement and shaping of the layers of the decorative layer system.
- the sensor element 61 is formed by an antenna coil which is responsive to the detection of an electromagnetic alternating field 8 emitted by an activator 7 is tuned.
- the power source 63 is a flat-printed electrochemical battery manufactured by printing.
- the sensor element 64 is a temperature sensor which is formed, for example, by an arrangement consisting of two electrodes and a semiconductor arranged between these electrodes with a corresponding temperature-dependent conductivity.
- the display element 65 is, for example, like the display element 4 after Fig. 1 educated.
- the electronic circuit 62 detects, on the one hand, the electromagnetic alternating field 8 coupled in via the sensor element 61 and the signal provided by the temperature sensor 64.
- a corresponding activation signal 8 is detected by the electronic circuit 62, it starts monitoring the temperature by means of the signal from the sensor element 64 as to whether a predetermined limit value is exceeded.
- the electronic circuit 62 activates the display element 65 so that optical information, for example a warning, is visible.
- the film body 6 is used for example as a label for the monitoring of food and this example applied to the food to be monitored or their packaging, or forms part of such packaging.
- the film body 6 may in this case also have further sensor elements which detect, for example, the light irradiation or the oxygen content and whose signals are checked by the electronic circuit 62 for compliance with predefined limit values.
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Abstract
Description
Die Erfindung betrifft einen mehrschichtigen flexiblen Folienkörper, insbesondere eine Labelfolie oder Verpackungsfolie, mit einer Trägerschicht und einem Dekorschichtsystem, welches eine optisch erkennbare Information bereit stellt, sowie Verwendungen eines solchen Folienkörpers und ein System umfassend einen solchen Folienkörper.The invention relates to a multilayer flexible film body, in particular a label film or packaging film, with a carrier layer and a decorative layer system which provides optically recognizable information, as well as uses of such a film body and a system comprising such a film body.
Zur Verpackung von Waren, beispielsweise Lebensmitteln, werden üblicherweise Verbundmaterialien eingesetzt, die neben einer Trägerfolie eine Dekorschicht aufweisen, welche der Verpackung einen gefälligen optischen Eindruck verleiht. So beschreibt beispielsweise
Werbeträger-Trägerschicht und eine Werbeträger-Bedruckung aufweist. Ein mehrschiechtiger flexibler Folienkörper gemäß dem Oberbegriff des Anspruchs 1 ist aus
Der Erfindung liegt nun die Aufgabe zugrunde, einen verbesserten mehrschichtigen flexiblen Folienkörper sowie Verwendungen eines solchen Folienkörpers anzugeben, welcher insbesondere als Labelfolie oder Verpackungsfolie Einsatz finden kann.The invention is based on the object to provide an improved multilayer flexible film body and uses of such a film body, which can be used in particular as a label film or packaging film use.
Diese Aufgabe wird von einem mehrschichtigen flexiblen Folienkörper gemäß den Merkmalen des Anspruchs 1 gelöstThis object is achieved by a multilayer flexible film body according to the features of claim 1
Durch die Erfindung wird es möglich, eine Verpackung mit neuartigen optischen Effekten zu versehen, optische dynamische Label mit neuartigen Funktionen bereit zu stellen und zusätzliche Funktionen in Umverpackungen zu integrieren.The invention makes it possible to provide a package with novel optical effects, to provide optical dynamic labels with novel functions and to integrate additional functions in outer packaging.
Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen bezeichnet.Advantageous developments of the invention are designated in the subclaims.
Vorzugsweise umfasst das Dekorschichtsystem eine oder mehrere Schichten, die ein Sensorelement zur Erfassung eines externen Aktivierungs-Signals ausbilden, wobei das Sensorelement direkt oder über eine elektronische Schaltung mit dem Anzeigeelement verbunden ist. Beim Empfang des Aktivierungs-Signals wird das Anzeigenelement aktiviert und die optisch erkennbare Information des Dekorschichtsystems sichtbar gemacht. Als Aktivierungs-Signale zur Aktivierung des Anzeigenelements können hierbei folgende Energiequellen und Einflüsse verwendet werden: Elektromagnetisches Wechselfeld,insbesondere HF-oder RF-Felder Taster, Schall, Temperatur, Leitfähigkeit, Luftfeuchte, Druck, Kapazität und Licht. Das Dekorschichtsystem weist hierbei jeweils eine oder mehrere Schichten auf, die ein Sensorelement zur Erfassung dieser Energiequellen und Einflüsse ausbilden. So ist es beispielsweise möglich, dass die optische Wirkung des Dekorschichtsystems durch ein Elektromagnetisches Wechselfeld als externes Aktivierungs-Signal aktivierbar ist und dass das Dekorschichtsystem eine oder mehrere Antennenstrukturen zur Erfassung des Elektromagnetisches Wechselfelds ausformende elektrisch leitfähige Schichten umfasst, die als Sensorelement zur Erfassung des Elektromagnetisches Wechselfelds dienen. Als Antennenstrukturen werden hierbei für den jeweilig verwendeten Frequenzbereich geeignete Antennenstrukturen verwendet, beispielsweise spulenförmige Antennen, Dipol-Antennen, Bipol-Antennen oder kapazitive Kopplungsstrukturen .Preferably, the decorative layer system comprises one or more layers, which form a sensor element for detecting an external activation signal, wherein the sensor element is connected directly or via an electronic circuit to the display element. Upon receipt of the activation signal, the display element is activated and the visually recognizable information of the decorative layer system made visible. The following energy sources and influences can be used as activation signals for activating the display element: Electromagnetic alternating field, in particular RF or RF fields, probe, sound, temperature, conductivity, air humidity, pressure, capacity and light. In this case, the decorative layer system in each case has one or more layers which form a sensor element for detecting these energy sources and influences. For example, it is possible that the optical effect of the decorative layer system can be activated by an electromagnetic alternating field as an external activation signal and that the decorative layer system comprises one or more antenna structures for detecting the electromagnetic alternating field forming electrically conductive layers as a sensor element for detecting the electromagnetic alternating field serve. In this case, suitable antenna structures are used as antenna structures for the respective frequency range used, for example coil-shaped antennas, dipole antennas, bipolar antennas or capacitive coupling structures.
Gemäss eines bevorzugten Ausführungsbeispiels der Erfindung wird die optische Wirkung des Dekorschichtsystems durch ein Elektromagnetisches Wechselfeld als externes Aktivierungssignal aktiviert und das Dekorschichtsystem weist eine oder mehrere zumindest bereichsweise plattenförmig ausgeformte elektrisch leitfähige Schichten zur kapazitiven Einkopplung des Elektromagnetisches Wechselfelds auf, die als Sensorelement(e) zur Erfassung des Elektromagnetisches Wechselfelds dienen. Eine derartige Einkopplung des Aktivierungs-Signals stellt eine besonders robuste Lösung dar, welche eine selektive und zielgerichtete Aktivierung der Folienkörper ermöglicht.According to a preferred embodiment of the invention, the optical effect of the decorative layer system is activated by an alternating electromagnetic field as an external activation signal and the decorative layer system has one or more at least partially plate-shaped electrically conductive layers for capacitive coupling of the electromagnetic alternating field, as a sensor element (e) for detecting serve the electromagnetic alternating field. Such coupling of the activation signal represents a particularly robust solution, which enables a selective and targeted activation of the film body.
Gemäss eines weiteren bevorzugten Ausführungsbeispiels der Erfindung ist das Anzeigenelement oder die elektronische Schaltung so ausgestaltet, dass das Anzeigenelement nach einmaligem Aktivieren aktiviert bleibt, vorzugsweise die Aktivierung des Anzeigenelements nicht mehr rückgängig gemacht werden kann. Nach der Aktivierung bleibt die optisch erkennbare Information somit permanent sichtbar. Dies kann zum einen durch die Verwendung von monostabilen Anzeigenelementen erzielt werden, andererseits auch durch eine elektronische Schaltung, welche nach Empfang des Aktivierungs-Signals das Anzeigenelement permanent im aktivierten Zustand hält.According to a further preferred embodiment of the invention, the display element or the electronic circuit is designed so that the display element remains activated after a single activation, preferably the activation of the display element can not be reversed. After activation, the visually recognizable information thus remains permanently visible. This can be achieved on the one hand by the use of monostable display elements, on the other hand by an electronic circuit which keeps the display element permanently in the activated state after receiving the activation signal.
Weiter ist es auch möglich, dass das Dekorschichtsystem eine oder mehrere Schichten umfasst, die ein Sensorelement zur Erfassung eines externen Deaktivierungs-Signals ausbilden und dass das Sensorelement direkt oder über eine elektronische Schaltung mit dem Anzeigenelement derart verbunden ist, dass das Anzeigenelement bei Empfang des Deaktivierungs-Signals deaktiviert wird. Weiter ist es auch möglich, dass das Anzeigenelement nur so lange aktiviert bleibt, so lange das Aktivierungs-Signal von dem Sensorelement erfasst wird.Further, it is also possible that the decorative layer system comprises one or more layers forming a sensor element for detecting an external deactivation signal and that the sensor element is connected directly or via an electronic circuit to the display element such that the display element upon receipt of deactivation Signal is deactivated. Furthermore, it is also possible for the display element to remain activated only as long as the activation signal is detected by the sensor element.
Gemäss eines weiteren bevorzugten Ausführungsbeispiels der Erfindung weist der Mehrschichtkörper ein Schaltelement auf, das nach einem vordefinierten Zeitablauf das Anzeigenelement aktiviert. Das Erscheinungsbild des Dekorschichtsystems ändert sich so mit dem Zeitablauf. Bei dieser Ausführungsform kann so auch auf ein Sensorelement zur Erfassung eines externen Aktivierungs-Signals verzichtet werden.According to a further preferred embodiment of the invention, the multilayer body has a switching element which activates the display element after a predefined timeout. The appearance of the decorative layer system changes with time. In this embodiment, it is therefore possible to dispense with a sensor element for detecting an external activation signal.
Vorzugsweise weist das Dekorschichtsystem eine oder mehrere Schichten auf, die eine elektrische Energiequelle ausbilden. Diese elektrische Energiequelle ist hierbei direkt oder über ein Schaltelement mit dem Anzeigenelement verbunden. Das Dekorschichtsystem weist so vorzugsweise zwei oder mehr Schichten auf, welche eine elektrochemische Flachbatterie als elektrische Energiequelle ausbilden. Weiter ist es beispielsweise möglich, dass das Dekorschichtsystem eine oder mehrere elektrisch leitfähige Schichten aufweist, welche zumindest bereichsweise als Flachspule zur induktiven Einkopplung von Energie aus einem Elektromagnetisches Wechselfeld ausgeformt sind, wobei die Flachspule mit einer Abstimm-Kapazität und einem Gleichrichter als Energiequelle zur Generierung eines Gleichstroms verschaltet ist. Weiter ist es möglich, dass das Dekorschichtsystem eine oder mehrere elektrisch leitfähige Schichten aufweist, welche zumindest bereichsweise als plattenförmige Metallflächen zur kapazitiven Einkopplung von Energie aus einem Elektromagnetisches Wechselfeld ausgeformt sind, wobei die plattenförmigen Metallflächen mit einem Gleichrichter und einer Kapazität als Energiequelle zur Generierung eines Gleichstroms verschaltet sind. Weitere Möglichkeiten bestehen darin, dass das Dekorschichtsystem eine oder mehrere vorzugsweise organische Solarzellen aufweisende Schichten als Energiequelle aufweist, oder eine oder mehrere Schichten bestehend aus einem Piezomaterial aufweist, welche beispielsweise bei Knicken oder biegen oder bei Wärme- oder Kälteeinwirkung des Folienkörpers einen von den entsprechenden Elektrodenschichten erfassten und von einem Kondensator gespeicherten Spannungsimpuls generieren. Eine weitere Möglichkeit besteht darin, dass das Dekorschichtsystem als Energiequelle ein oder mehrere Elektroden zur Aufnahme von durch Reibung und elektrostatische Aufladung generierten Ladungsträger aufweist. Vorzugsweise weist das Dekorschichtsystem hierbei eine als Energiespeicher dienende Kapazität auf, die von den oben beschriebenen Energiequellen aufgeladen wird und direkt oder indirekt mit dem Anzeigenelement verbunden ist.Preferably, the decorative layer system has one or more layers that form an electrical energy source. This electrical energy source is in this case connected directly or via a switching element with the display element. The decorative layer system thus preferably comprises two or more layers, which one Form electrochemical flat battery as an electrical energy source. Further, it is for example possible that the decorative layer system has one or more electrically conductive layers, which are at least partially formed as a flat coil for the inductive coupling of energy from an electromagnetic alternating field, wherein the flat coil with a tuning capacitance and a rectifier as an energy source for generating a DC is interconnected. Furthermore, it is possible that the decorative layer system has one or more electrically conductive layers, which are formed at least in regions as plate-shaped metal surfaces for the capacitive coupling of energy from an alternating electromagnetic field, the plate-shaped metal surfaces with a rectifier and a capacitor as an energy source for generating a direct current are interconnected. Other possibilities are that the decorative layer system has one or more preferably organic solar cells having layers as an energy source, or one or more layers consisting of a piezoelectric material which, for example, kinks or bending or heat or cold action of the film body one of the corresponding electrode layers generated and generated by a capacitor voltage pulse generate. Another possibility is that the decorative layer system as an energy source one or more electrodes for Recording of generated by friction and electrostatic charge carrier has. Preferably, the decorative layer system here has a serving as an energy storage capacity, which is charged by the energy sources described above and is connected directly or indirectly to the display element.
Weiter ist es auch möglich, eine aus zwei oder mehr der oben angeführten Energiequellen kombinierte Energiequelle zu verwenden, z.B. ein Piezoelement oder eine Solarzelle mit einer Batterie.Further, it is also possible to use a power source combined of two or more of the above energy sources, e.g. a piezoelectric element or a solar cell with a battery.
Gemäss eines bevorzugten Ausführungsbeispiels der Erfindung ist zwischen der Energiequelle und dem Anzeigenelement eine elektronische Schaltung vorgesehen, welche u.a. ein Schaltelement enthalten kann, welches die Verbindung zwischen Energiequelle und Anzeigenelement herstellt bzw. unterbricht. Die elektronische Schaltung wird hierbei vorzugsweise von zwei oder mehr Schichten des Dekorschichtsystems gebildet, welche eine organische elektronische Schaltung umfassend eine oder mehrere aus einer Lösung aufgebrachte halbleitende Schichten ausbildet. Die elektronische Schaltung ist hierbei einerseits mit der Energiequelle und andererseits mit dem Anzeigenelement verbunden und steuert die Aktivierung des Anzeigenelements. Als Schaltelement finden hierbei vorzugsweise organische Feldeffekt-Transistoren Verwendung.According to a preferred embodiment of the invention, an electronic circuit is provided between the power source and the display element, which may include, inter alia, a switching element which establishes or interrupts the connection between the power source and the display element. In this case, the electronic circuit is preferably formed by two or more layers of the decorative layer system, which forms an organic electronic circuit comprising one or more semiconductive layers applied from a solution. The electronic circuit is in this case on the one hand connected to the power source and on the other hand to the display element and controls the activation of the display element. As a switching element here are preferably organic field effect transistors use.
Das Dekorschichtsystem weist gemäss eines bevorzugten Ausführungsbeispiels der Erfindung zwei Elektrodenschichten und eine oder mehrere zwischen den Elektrodenschichten angeordnete Schichten enthaltend ein nematisches oder cholerisches Flüssigkristallmaterial, ein elektrochromes Material, ein elektrolumineszentes Material oder einen organischen (oder anorganischen) Leuchtstoff auf, die das elektrisch gesteuerte Anzeigenelement ausbilden. Das Anzeigenelement kann so beispielsweise in einer Polymermatrix eingeschlossene mit Flüssigkristall gefüllte Sphären aufweisen, welche sich durch eine elektrische Spannung ausrichten lassen und somit von opak auf durchsichtig geschaltet werden können. Hierbei können auch cholesterische Flüssigkristallmaterialien zum Einsatz kommen. Bei der Verwendung von elektrochromen Materialien ändert sich die Farbe des Anzeigenelements wenn der Farbstoff durch eine elektrochemische Reaktion reduziert wird. Bei einem elektrolumineszenten Stoff wird Phosphor über ein elektrisches Wechselfeld zum Leuchten angeregt. Weiter ist auch die Verwendung von farbigen elektrischen Partikeln möglich, welche zwischen zwei Elektroden angeordnet sind und über elektrostatische Kräfte bewegt werden, so dass sie für den Betrachter sichtbar oder unsichtbar sind. Weiter ist es auch möglich, zwischen zwei Elektroden eine gefärbte Flüssigkeit vorzusehen, welche über elektrostatische Kräfte in der Form verändert wird und somit sichtbar oder unsichtbar wird. Weiter ist die Verwendung von organischen Leuchtdioden als Anzeigenelement möglich, wobei hier organische Leuchtstoffe durch einen Strom zum Leuchten angeregt werden. Weiter ist es auch möglich, dass das Dekorschichtsystem eine thermochrome Schicht aufweist, die benachbart zu einem elektrischen Heizelement, beispielsweise einer mäanderförmig angeordneten Leiterbahn, in dem Dekorschichtsystem angeordnet ist. Bei Anlegen einer Spannung an das Heizelement erwärmt sich dieses und das thermochrome Material der thermochromen Schicht verändert seine Farbe. Es können so energieaktivierte, monostabile oder bistabile Anzeigenelemente zum Einsatz kommen.According to a preferred embodiment of the invention, the decorative layer system comprises two electrode layers and one or more layers arranged between the electrode layers comprising a nematic or choleric liquid crystal material, an electrochromic material, an electroluminescent material or an organic (or inorganic) phosphor, which form the electrically controlled display element , The display element may thus have, for example, spheres filled with liquid crystal enclosed in a polymer matrix, which can be aligned by an electrical voltage and thus can be switched from opaque to transparent. In this case, cholesteric liquid crystal materials can also be used. When using electrochromic materials, the color of the display element changes when the dye is reduced by an electrochemical reaction. In an electroluminescent substance, phosphorus is excited to glow via an alternating electric field. Further, the use of colored electric particles is possible, which are arranged between two electrodes and are moved by electrostatic forces, so that they are visible or invisible to the viewer. Furthermore, it is also possible to provide a colored liquid between two electrodes, which is changed via electrostatic forces in the mold and thus becomes visible or invisible. Next is the use of organic light-emitting diodes as Display element possible, here organic phosphors are excited by a current to shine. Furthermore, it is also possible for the decorative layer system to have a thermochromic layer which is arranged adjacent to an electrical heating element, for example a meander-shaped conductor track, in the decorative layer system. When a voltage is applied to the heating element, it heats up and the thermochromic material of the thermochromic layer changes its color. It can be used as energy-activated, monostable or bistable display elements.
Vorzugsweise sind hierbei ein oder mehrere Schichten des Anzeigenelements in Form der optisch erkennbaren Information ausgeformt, so dass sich bei Aktivierung des Anzeigenelements die optische Wirkung des Dekorschichtsystems in diesem Bereich verändert und die optisch erkennbare Information sichtbar wird.In this case, one or more layers of the display element are preferably formed in the form of the optically recognizable information, so that upon activation of the display element, the optical effect of the decorative layer system changes in this area and the optically recognizable information becomes visible.
Es ist jedoch auch möglich, dass die optisch erkennbare Information von einer oder mehreren, vorzugsweise farbig ausgestalteten Schichten gebildet wird, die aus Sicht des Betrachters ober- oder unterhalb des Anzeigenelements angeordnet sind und bei Aktivierung des Anzeigenelements für den Betrachter sichtbar werden, beispielsweise indem diese Schichten für den Betrachter nicht mehr verdeckt werden oder durch Veränderung des Hintergrunds sichtbar werden.However, it is also possible that the optically recognizable information is formed by one or more, preferably colored layers, which are arranged from the viewer's point of view above or below the display element and visible to the viewer upon activation of the display element, for example by this Layers are no longer obscured to the viewer become visible or by changing the background.
Weiter ist es auch möglich, dass eine oder beide der Elektroden des Anzeigenelements von einer unstrukturierten Elektrodenschicht gebildet wird, die durch Überdrucken mit einem elektrisch nicht leitenden Druckstoff in Negativform der optisch erkennbaren Information derart strukturiert ist, dass die Elektroden lediglich im Bereich der optisch erkennbaren Informationen über eine elektrisch leitfähige Oberfläche verfügen, die mit dem elektrochromen Material, dem elektrolumineszenten Material oder dem organischen/anorganischen Leuchtstoff in Kontakt steht. Besonders vorteilhaft hat es sich hierbei erwiesen, als Isolator für eine derartige Strukturierung der Elektrodenschicht oder der Elektrodenschichten ein Thermotransferwachs zu verwenden. Besonders geeignet haben sich hierbei Mischungen auf Basis verschiedenener Wachse und Harze mit einem Tropfpunkt von 90 bis 110 C° und einem Erstarrungspunkt von 75 bis 85 C° und einer Viskosität von 50 bis 100 µPa bei 100 C° erwiesen. Die Wachsschicht wird mittels eines Thermotransferdruckers auf die Elektrodenschicht aufgedruckt. Dem Thermotransferdrucker wird hierbei eine Thermotransferfolie zugeführt, die eine Trägerfolie und eine auf dieser aufgebrachte Wachsschicht aus einem Thermotransferwachs aufweist. Die Thermotransferwachsschicht wird von einem Thermotransferdruckkopf, der digital angesteuert ist, bereichsweise aufgeschmolzen und hierbei jeweils ein kleiner Bereich der Transferlage der Thermotransferfolie auf die Elektrode übertragen. Bei dieser Übertragung schmelzen benachbarte Bereiche der auf der Elektrode übertragenen Bereiche der Thermotransferwachsschicht, so dass zum einen die thermische Belastung des Dekorschichtsystems gering bleibt und eine sichere Isolierung der deaktivierten Bereiche der Elektrode - auch in den Randbereichen der Elektrode - erzielt wird. Weitere Vorteile ergeben sich dadurch, dass die Thermotransferschicht eine besonders gute Beständigkeit gegenüber den von dem Anzeigenelement verwendeten photoaktiven Materialien, z.B. lumineszente Materialien, organische oder anorganische Leuchtstoffe besitzen, und so die Ausfallsicherheit des Anzeigenelements durch die Verwendung einer derartigen Isolatorschicht verbessert wird.Furthermore, it is also possible that one or both of the electrodes of the display element is formed by an unstructured electrode layer which is structured by overprinting with an electrically non-conductive printing material in negative form of optically recognizable information such that the electrodes only in the region of optically recognizable information have an electrically conductive surface in contact with the electrochromic material, the electroluminescent material or the organic / inorganic phosphor. It has proved to be particularly advantageous in this case to use a thermal transfer wax as the insulator for such a structuring of the electrode layer or of the electrode layers. Mixtures based on various waxes and resins having a dropping point of 90 ° to 110 ° C. and a solidification point of 75 ° to 85 ° C. and a viscosity of 50 to 100 μPa at 100 ° C. have proven particularly suitable. The wax layer is printed on the electrode layer by means of a thermal transfer printer. In this case, the thermal transfer printer is fed with a thermal transfer film which has a carrier film and a wax layer of a thermal transfer wax applied thereto. The thermal transfer wax layer is produced by a thermal transfer printhead that is digitally driven, partially melted and in each case a small area of the transfer layer of the thermal transfer film transferred to the electrode. In this transfer, adjacent areas of the areas transferred to the electrode of the thermal transfer wax layer melt, so that on the one hand the thermal load of the decorative layer system remains low and a secure insulation of the deactivated areas of the electrode - even in the edge regions of the electrode - is achieved. Further advantages result from the fact that the thermal transfer layer has a particularly good resistance to the photoactive materials used by the display element, for example luminescent materials, organic or inorganic phosphors, and thus the reliability of the display element is improved by the use of such an insulator layer.
Weiter ist es auch möglich, dass das Dekorschichtsystem zwei oder mehr unterschiedliche optisch erkennbare Informationen bereit stellt und mehrere Schichten des Dekorschichtsystems zwei oder mehr elektrische gesteuerte Anzeigenelemente ausbilden, durch deren Aktivierung jeweils eine der unterschiedlichen optisch erkennbaren Informationen sichtbar wird.Furthermore, it is also possible that the decorative layer system provides two or more different visually recognizable information and several layers of the decorative layer system form two or more electrically controlled display elements, by the activation of which one of the different optically recognizable information becomes visible.
Vorzugsweise wird der Folienkörper als optisch dynamisches Label in einem Gesamtsystem eingesetzt. Dieses System besteht aus einem Funkaktivator und einer Vielzahl optisch dynamischer Labels, die aufgrund der kostengünstigen Herstellung zu Marketingzwecken auf einer Vielzahl von Produkten eingesetzt werden können. Die optisch dynamischen Label können beispielsweise in der Verpackungsindustrie z.B. auf Chip-Tüten aufgelabelt werden. Wird das Anzeigenelement aktiviert, können sich hinter der Anzeige verschiedene Informationen wie Bilder oder Nummern für ein Gewinnspiel verbergen. So werden beispielsweise Packungen verteilt, auf denen sich jeweils ein aktivierbares Logo als sichtbar machbare, optisch erkennbare Information befindet. Es ist nur eine begrenzte Anzahl an Variationen des Logos vorgesehen (z.B. Herz, Stern, Sektglas). Es sind so zwei oder mehr unterschiedliche Gruppen von Umverpackungen vorgesehen, wobei die Umverpackung derselben Gruppe jeweils dieselbe aktivierbare Information aufweisen, die sich von der aktivierbaren Information der anderen Gruppe unterscheidet. Weiter ist es auch möglich, dass eine weitere Gruppe von Umverpackungen vorgesehen ist, die ein dem nicht aktivierten optisch dynamischen Label entsprechendes optisches Erscheinungsbild besitzen, jedoch nicht über ein elektrisch gesteuertes Anzeigenelement verfügen. Durch solche "Dummies" können die Gewinnchancen eingeschränkt werden.Preferably, the film body is used as an optically dynamic label in an overall system. This system consists of a radio activator and a variety of optically dynamic labels that can be used on a variety of products due to the cost-effective production for marketing purposes. The optically dynamic labels can be charged, for example, in the packaging industry, for example on chip bags. When the ad element is activated, various information such as images or numbers for a raffle can be hidden behind the ad. For example, packs are distributed on each of which an activatable logo as visible, optically identifiable information is. There are only a limited number of variations of the logo provided (eg heart, star, champagne glass). There are so two or more different groups of outer packaging provided, wherein the outer packaging of the same group each have the same activatable information that is different from the activatable information of the other group. Further, it is also possible that a further group of outer packaging is provided, which have a non-activated optically dynamic label corresponding optical appearance, but do not have an electrically controlled display element. Such "dummies" can limit the odds of winning.
Weiter ist es auch möglich, den erfindungsgemäßen Folienkörper für Tickets, Markenschutzelemente (z.B. Label), Lose, Spielkarten oder sonstige Spiele einzusetzen, oder als RFID Tag mit zusätzlichen optischen Informationen auszugestalten,Furthermore, it is also possible to use the film body according to the invention for tickets, brand protection elements (eg labels), lots, playing cards or other games or to design it as an RFID tag with additional optical information,
Die elektrisch gesteuerten Anzeigenelemente können auch segmentiert sein, z.B. um ein 7-Segment Element aufzubauen (Darstellung von Zahlen oder Buchstaben). Weiter können auch mehrere elektrisch gesteuerte Anzeigenelemente nebeneinander vorgesehen sein, die bei Aktivieren verschiedene Logoelemente oder Informationselemente sichtbar machen.The electrically controlled display elements may also be segmented, e.g. to build a 7-segment element (representation of numbers or letters). Furthermore, a plurality of electrically controlled display elements can be provided next to one another, which when activated make different logo elements or information elements visible.
Die Anzeigenelemente können so ausgestaltet sein, dass die optisch erkennbare Information nur beim direkten Aktivieren (z.B. durch drücken auf einen Taster oder durch direkte Einwirkung eines elekromagnetischen Wechselfeldes) sichtbar ist, blinkt oder auch - bei verschiedenen Anzeigenelementen - diese Elemente nacheinander aktiviert werden und so die jeweiligen Informationen nacheinander sichtbar gemacht werden. Desweiteren können die Anzeigenelemente auch dauerhaft aktiviert werden und die Information so durch einmaliges Aktivieren dauerhaft sichtbar bleiben oder durch ein "reset" signal wieder zurückgeschaltet werden.The display elements can be designed so that the visually recognizable information is visible only when activated directly (eg by pressing a button or by direct action of an electromagnetic alternating field), flashes or - with different display elements - these elements are activated one after the other and so information is displayed one after the other. Furthermore, the display elements can also be permanently activated and the information so remain permanently visible by a single activation or be switched back by a "reset" signal.
Durch den Aktivator, der beispielsweise ein vordefiniertes Elektromagnetisches Wechselfeld sendet, können die Logos beispielsweise am Stand des Herstellers im Rahmen eines Gewinnspiels aktiviert werden.For example, the activator, which transmits a predefined alternating electromagnetic field, can activate the logos at the manufacturer's stand as part of a raffle.
Weiter kann das optisch dynamische Label auch als Zahlungsmittel eingesetzt werden. So kann beispielsweise an der Kasse nach Bezahlung das Logo aktiviert werden und sichtbar werden. Nach der Warenausgabe wird das Symbol wieder deaktiviert. Dieser Vorgang kann wiederholt werden. Das Anzeigenelement kann auch permanent aktivierbar sein, d.h. die Information bleibt nach einmaliger Aktivierung erhalten.Furthermore, the optically dynamic label can also be used as a means of payment. For example, the logo can be activated at the cash desk after payment and become visible. After the goods issue, the symbol is deactivated again. This process can be repeated. The display element may also be permanently activatable, i. the information is retained after a single activation.
Weiter kann der erfindungsgemäße Mehrschichtkörper auch als intelligente und interaktive Bedienungsanleitung dienen. Durch Aktivierung können z.B. zusätzliche Informationen zum Produkt, Umgang oder dessen Verwendbarkeit eingeblendet werden.Furthermore, the multi-layer body according to the invention can also serve as an intelligent and interactive operating manual. By activation, e.g. Additional information on the product, handling or its usability are displayed.
Darüber hinaus kann der erfindungsgemäße Mehrschichtkörper als Sicherheitsmerkmal zur Kennzeichnung der Echtheit von Produkten dienen. Der Hersteller kann durch Aktivierung erkennen, ob es sich bei dem Produkt um ein Nachahmer-Produkt handelt oder nicht und bei Garantiefällen oder bei der Entsorgung von Produkten feststellen, ob die Waren tatsächlich von ihm stammen und er zu Serviceleistungen verpflichtet ist oder nicht.In addition, the multilayer body according to the invention can serve as a security feature for identifying the authenticity of products. The manufacturer can recognize by activation whether or not the product is a copycat product and, in the case of warranty claims or the disposal of products, determine whether the goods actually come from him and he is obliged to provide services or not.
Im Weiteren kann der erfindungsgemäße Folienkörper auch als Label für die Überwachung elektronischer Komponenten verwendet werden. In der Elektronik dürfen bestimmte Bauteile keinen starken elektrischen oder magnetischen Feldern ausgesetzt sein. Zur Überprüfung der Einhaltung dieser Vorschriften kann ein erfindungsgemäßer Mehrschichtkörper als Indikator auf solche Produkte oder deren Verpackung aufgelabelt werden. Der Folienkörper weist hierbei ein Sensorelement zur Erfassung der elektrischen oder magnetischen Felder auf und das Anzeigeelement wird aktiviert sobald die vordefinierten Grenzwerte überschritten werden.Furthermore, the film body according to the invention can also be used as a label for the monitoring of electronic components. In electronics, certain components may not be exposed to strong electrical or magnetic fields. To check compliance with these regulations, a multi-layer body according to the invention can be used as an indicator for such products or their packaging. The film body in this case has a sensor element for detecting the electric or magnetic fields and the display element is activated as soon as the predefined limits are exceeded.
Weiter kann der erfindungsgemäße Folienkörper auch als Label für die Überwachung von Lebensmitteln verwendet werden und zu diesem Zwecke auf die Lebensmittel oder deren Verpackung aufgelabelt werden. Der Folienkörper weist hierbei z.B. Sensorelemente zur Erfassung der Temperatur der Lebensmittel (Kühlkette), der Überwachung der Lichtscheindauer (z.B. UV-empfindliche Produkte) oder der Dichtheit der Verpackung (Erfassung des Sauerstoffgehalts, Stickstoffgehalts, des Wassers, etc.) auf. Bei Überschreitung der vordefinierten Grenzwerte wird das Anzeigenelement aktiviert und die Information, beispielsweise ein Warnhinweis, sichtbar gemacht.Furthermore, the film body according to the invention can also be used as a label for the monitoring of foods and be charged for this purpose to the food or its packaging. The film body in this case, for example, Sensor elements for detecting the temperature of the foodstuffs (cold chain), monitoring the duration of the light (for example UV-sensitive products) or the tightness of the packaging (detection of the oxygen content, nitrogen content, water, etc.). If the predefined limits are exceeded, the display element is activated and the information, for example a warning, is made visible.
Ein weiteres Anwendungsfeld für erfindungsgemäße Folienkörper stellen sogenannte "Life-Style-Goods" dar. Es ist so beispielsweise möglich, dass der Folienkörper ein interaktives Poster bildet, bei dem durch ein Aktivierungssignal eine Änderung eines Layouts oder einer Graphik des Posters angestoßen werden kann. Auch andere, ein interaktives Verhalten zeigende Anwendungen sind möglich, z.B. Integration des Folienelements in einem T-Shirt (oder sonstiger Kleidungsstücke), einem Armband, einer Uhr oder einem Anhänger, wobei auch hier das optische Anzeigenelement gezielt aktiviert werden kann.Another field of application for film bodies according to the invention is so-called "life-style goods". It is thus possible, for example, that the film body forms an interactive poster in which an activation signal can trigger a change in a layout or a graphic of the poster. Other, an interactive behavior pointing applications are possible, for example, integration of the film element in a T-shirt (or other garments), a bracelet, a clock or a trailer, where also the optical display element can be selectively activated.
Der erfindungsgemäße Folienkörper kann als Label auf Verpackungen oder Oberflächen aufgeklebt werden. Weiter besteht die Möglichkeit, dass der Folienkörper in eine Verpackung mit hinein geschoben wird. Weiter besteht die Möglichkeit, dass in der Verpackung eine Ausnehmung entsprechend der Abmessung des Anzeigenelements, z.B. gestanzt wird und der Folienkörper von hinten passergenau zu der Ausnehmung an der Verpackung befestigt, beispielsweise mit der Verpackung verklebt wird. Hierbei wird das Anzeigenelement vorzugsweise farblich an die Verpackung oder Oberfläche angepasst. Weiter ist es auch möglich, dass der Folienkörper selbst eine Verpackungsfolie für Umverpackungen darstellt und das Anzeigenelement sowie weitere Komponenten (Energiequelle, Elektronik, Sensorelement) durch Druckprozesse während der Herstellung der Verpackungsfolie aufgebracht werden. Vorzugsweise wird hierbei der erfindungsgemäße Folienkörper in einem Rolle-zu-Rolle-Prozess im wesentlichen mittels Druckverfahren hergestellt.The film body of the invention can be adhered as a label on packaging or surfaces. Furthermore, there is the possibility that the film body is pushed into a packaging with it. It is also possible that in the packaging a recess corresponding to the dimension of the display element, for example, is punched and the film body attached from the back exactly to the recess on the packaging, for example, is glued to the package. In this case, the display element is preferably adapted to the color of the packaging or surface. Furthermore, it is also possible that the film body itself represents a packaging film for outer packaging and the display element and further components (energy source, electronics, sensor element) are applied by printing processes during the production of the packaging film. In this case, the film body according to the invention is preferably produced in a roll-to-roll process essentially by means of a printing process.
Im Weiteren wird die Erfindung anhand von mehreren Ausführungsbeispielen beispielhaft unter Zuhilfenahme der beiliegenden Zeichnungen erläutert.
- Fig. 1
- zeigt eine schematische Darstellung eines erfindungsgemäßen Folienkörpers.
- Fig. 2
- zeigt eine schematische Schnittdarstellung des Folienkörpers nach
Fig. 1 . - Fig. 3
- zeigt ein Warenkennzeichnungs-System mit einem Aktivator und einem erfindungsgemäßen Folienkörper.
- Fig. 1
- shows a schematic representation of a film body according to the invention.
- Fig. 2
- shows a schematic sectional view of the film body after
Fig. 1 , - Fig. 3
- shows a product marking system with an activator and a film body according to the invention.
Die Figuren
Bei der Trägerschicht 10 handelt es sich vorzugsweise um eine Kunststofffolie, insbesondere aus Polyester, Polyethylen, Polycarbonat, Polypropylen, Polyetheretherketonketon, Polyetheretherketon, Polyamid, Polyphthalamid, syndiotaktisches Polystyrol, Polyvinylidendifluorid, Polytetrafluorethylen mit einer Schichtdicke von 12 bis 100 µm.The
Das Dekorschichtsystem 11 besteht aus mehreren Schichten, die vorzugsweise in strukturierter Form mittels eines Druckverfahrens, beispielsweise Tiefdruck oder Tampondruck, in einem Rolle-zu-Rolle-Prozess aufgebracht sind.The
In einem ersten Bereich sind die elektrischen Funktionsschichten des Dekorschichtsystems 11 zu seinem Sensorelement 2 ausgebildet, welches der Erfassung eines Elektromagnetisches Wechselfelds dient. So ist im Bereich des Sensorelements 2 die elektrisch leitende Funktionsschicht 12 - wie in
In einem weiteren Bereich des Folienkörpers 1 sind die elektrischen Funktionsschichten des Dekorschichtsystems 11 zur Ausbildung einer organischen elektronischen Schaltung angeordnet und ausgeformt. In dem Ausführungsbeispiel nach
Im Bereich des Anzeigenelements 4 sind in dem Dekorschichtsystem 11 die elektrisch leitfähigen Schichten 12 und 14 sowie die Funktionsschicht 13 angeordnet, die das Anzeigenelement ausbilden. Die Funktionsschicht 13 besteht aus einem Material, welches bei Anlegen eines elektrischen Feldes oder bei einem elektrischen Stromfluss seine optischen Eigenschaften ändert. Die Schicht 13 besteht so beispielsweise aus einer Polymermatrix mit Hohlräumen, die mit einem nematischen oder cholesterischen Flüssigkristallmaterial gefüllt sind, so dass sich bei Anlegen eines elektrischen Feldes eine Änderung des optischen Erscheinungsbildes der Schicht 13 ergibt. Weiter kann die Schicht 13 auch aus einem elektrochromen Material, einem elektrolumineszenten Material, einem elektrophoretischen Material oder aus einem organischen Leuchtstoff bestehen, wobei hier auch noch weitere Schichten zwischen den Schichten 12 und 13 vorgesehen sein können. Eine oder mehrere der Schichten 12, 13 oder 14 sind im Bereich des Anzeigenelements 4 in Form einer optisch erkennbaren Information ausgeformt, so dass bei Aktivierung des Anzeigenelements 4, d.h. bei Anlegen einer Spannung an die Anschlusskontakte des Anzeigenelements 4, sich das optische Erscheinungsbild des Anzeigenelements 4 in dem Bereich der optisch erkennbaren Information verändert und die optisch erkennbare Information 5 so optisch sichtbar wird.In the area of the
Als elektrisch leitfähige Funktionsschichten werden vorzugsweise dünne Metallschichten im Dickebereich zwischen etwa 1 und 5 nm eingesetzt, beispielsweise bestehend aus Kupfer, Aluminium, Silber, Gold oder einer Metalllegierung. Weiter ist es auch möglich, dass die elektrisch leitfähigen Funktionsschichten - insbesondere im Bereich des Anzeigenelements 4 - aus einem transparenten leitfähigen Material wie ITO oder TIOx oder aus einem organisch leitfähigen Material wie PEDOT/PSS, Pani oder Carbon Nano Tubes bestehen.As electrically conductive functional layers preferably thin metal layers in the thickness range between about 1 and 5 nm are used, for example consisting of copper, aluminum, silver, gold or a metal alloy. Furthermore, it is also possible for the electrically conductive functional layers-in particular in the region of the display element 4-to consist of a transparent conductive material such as ITO or TIO x or of an organic conductive material such as PEDOT / PSS, pani or carbon nanotubes.
Die elektrisch halbleitenden Funktionsschichten des Dekorschichtsystems 11 bestehen vorzugsweise aus einem organischen Halbleiter, beispielsweise Polythiopen, Polyterthropen, Polyfluoren, Pentaceen, Tetraceen, Oligotropen, anorganischem Silizium eingebettet in einer Polymermatrix, Nano-Silizium oder Polyarylamin oder Carbon Nanotubes. Die Schichtdicke der organischen Halbleiterschicht beträgt vorzugsweise zwischen 5 nm und 1 µm. Die Halbleiterschicht wird aus einer Lösung, beispielsweise einer wässrigen Lösung, mittels eines Druckverfahrens, beispielsweise eines Tiefdruckverfahrens oder Tampon-Druckverfahrens, oder auch mittels Spin-Coating, Sprühen oder Gießen aufgebracht.The electrically semiconducting functional layers of the
Weiter kann die elektrisch halbleitende Funktionsschicht auch aus einer Schicht bestehend aus im wesentlichen anorganischen Substanzen ausgebildet sein, welche aus einer Lösung aufgebracht sind. So kann die Schicht aus einer, aus einer in Lösung aufgebrachten, Schicht eines anorganischen Halbleiters bestehen, beispielsweise aus Nano-Partikeln eines anorganischen Halbleiters, beispielsweise Silizium, die aus einer Lösung mittels eines der oben angeführten Verfahren aufgebracht sind, mit einer Schichtdicke zwischen 5 nm und 1 µm.Furthermore, the electrically semiconducting functional layer can also be formed from a layer consisting essentially of inorganic substances which are applied from a solution. Thus, the layer can consist of a layer of an inorganic semiconductor applied from a solution, for example nanoparticles of an inorganic semiconductor, for example silicon, which are applied from a solution by means of one of the above-mentioned methods, with a layer thickness between 5 nm and 1 μm.
Bei der elektrisch nicht leitenden Funktionsschicht des Dekorschichtsystems 11 handelt es sich vorzugsweise um eine Schicht aus einem Polymermaterial, beispielsweise aus Polymethylmethacrylat (PMMA), PVP, PHS, PS, Polystyrolcopolymeren, Harnstoffharzen oder PMMA-Copolymeren mit einer Schichtdicke von 5 nm bis 16 µm. Auch diese Schicht ist vorzugsweise aus einer Lösung mittels eines der oben bezeichneten Verfahren, insbesondere mittels Offset, Tintenstrahldruck, Tiefdruck oder Siebdruck oder Flexodruck, aufgebracht.The electrically non-conductive functional layer of the
Weiter ist es auch möglich, das Dekorschichtsystem 11 nicht in einem einzigen, kontinuierlichen Fertigungsprozess zu fertigen, sondern dass einzelne Komponenten des Dekorschichtsystems 11, beispielsweise die elektronische Schaltung 3 und/oder das Anzeigenelement 4, separat in einem Rolle-zu-Rolle-Prozess gefertigt und sodann beispielsweise auf die elektrisch leitfähige Funktionsschicht 12 appliziert und mit den entsprechenden anderen Komponenten mittels eines elektrisch leitfähigen Klebers elektrisch verbunden werden.Furthermore, it is also possible not to produce the
Der in
Das Sensorelement 61 wird von einer Antennenspule gebildet, die auf die Erfassung eines von einem Aktivator 7 abgestrahlten Elektromagnetisches Wechselfelds 8 abgestimmt ist. Bei der Energiequelle 63 handelt es sich um eine mittels Druckens hergestellte elektrochemische Flachbatterie.The
Bei dem Sensorelement 64 handelt es sich um einen Temperatursensor, welcher beispielsweise von einer Anordnung bestehend aus zwei Elektroden und einem zwischen diesen Elektroden angeordneten Halbleiter mit entsprechend temperaturabhängiger Leitfähigkeit gebildet ist. Das Anzeigenelement 65 ist beispielsweise wie das Anzeigenelement 4 nach
Wird nun von der elektronischen Schaltung 62 ein entsprechendes Aktivierungssignal 8 erfasst, so startet sie die Überwachung der Temperatur mittels des Signals von dem Sensorelement 64 darauf hin, ob ein vorgegebener Grenzwert überschritten wird. Bei Überschreiten des Temperatur-Grenzwertes aktiviert die elektronische Schaltung 62 das Anzeigenelement 65, so dass eine optische Information, beispielsweise ein Warnhinweis, sichtbar ist. Der Folienkörper 6 wird beispielsweise als Label für die Überwachung von Lebensmitteln eingesetzt und hierzu beispielsweise auf die zu überwachenden Lebensmittel oder deren Verpackung appliziert, oder bildet Teil einer solchen Verpackung. Neben dem Sensorelement 64 kann der Folienkörper 6 hierbei noch weitere Sensorelemente aufweisen, die beispielsweise die Lichteinstrahlung oder den Sauerstoffgehalt erfassen und deren Signale von der elektronischen Schaltung 62 auf die Einhaltung von vordefinierten Grenzwerten hin überprüft werden.If a
Claims (15)
- Multilayer flexible film body (1, 6), in particular a label film or packaging film, having a support layer (10) and a decorative layer system (11) which provides an optically detectable information item (5), a plurality of layers (12, 13, 14) of the decorative layer system forming an electrically controlled display element (5, 65) the activation of which visualizes the optically detectable information item (5), characterized in that the decorative layer system (11) has two electrode layers (12, 14) and one or more layers (13), arranged between the electrode layers, containing an electrochromic material, an electroluminescent material, an organic phosphor or an inorganic phosphor which forms the electrically controlled display element (5, 65), and in that one or both of the electrodes of the display element is/are formed by an unstructured electrode layer which is structured by overprinting with an electrically nonconducting printing material in a negative mould of the optically detectable information item in such a way that it is only in the region of the optically detectable information item that electrodes have an electrically conductive surface which is in contact with the electrochromic material, the electroluminescent material or the organic/inorganic phosphor.
- Multilayer flexible film body (1, 6) according to Claim 1, characterized in that the decorative layer system (11) comprises one or more layers which form a sensor element (2, 61) for detecting an external activation signal (8), and in that the sensor element (2, 61) is connected to the display element (4, 65) directly or via an electronic circuit (3, 62).
- Multilayer flexible film body (1, 6) according to Claim 2, characterized in that the optical action of the decorative layer system can be activated by an alternating electromagnetic field as external activation signal, and in that the decorative layer system comprises one or more electrically conductive layers which form antenna structures for detecting the alternating electromagnetic field and serve as sensor element for detecting the alternating electromagnetic field.
- Multilayer flexible film body (1) according to either of Claims 2 and 3, characterized in that the optical action of the decorative layer system (11) can be activated by an alternating electromagnetic field as external activation signal, and in that the decorative layer system (11) comprises one or more electrically conductive layers (12), formed at least in part in the shape of plates, for the capacitive coupling of the alternating electromagnetic field, which layers serve as sensor element (2) for detecting the alternating electromagnetic field.
- Multilayer flexible film body according to one of the preceding claims, characterized in that the decorative layer system (11) comprises one or more layers which form a sensor element for detecting an external deactivation signal, and in that the sensor element is connected to the display element directly or via an electronic circuit in such a way that the display element is deactivated upon reception of the deactivation signal.
- Multilayer flexible film body according to one of the preceding claims characterized in that the display element or the electronic circuit is configured such that the display element remains activated after being activated once.
- Multilayer flexible film body according to one of the preceding claims, characterized in that the decorative layer system provides two or more different optically detectable information items, and in that a plurality of layers of the decorative layer system form two or more electrically controlled display elements whose activation respectively visualizes one of the different optically detectable information items.
- Multilayer flexible film body (1, 6) according to one of the preceding claims, characterized in that the decorative layer system (11) has two or more layers which form an electronic circuit (3), comprising one or more semiconducting layers applied from a solution, and in that the electronic circuit (3, 62) is connected to the display element (4, 65) and is configured in such a way that it controls the activation of the display element.
- Multilayer flexible film body (1, 6) according to one of the preceding claims, characterized in that the decorative layer system (11) has one or more layers which form an electrical energy source (2, 63) and in that the electrical energy source (2, 63) is connected to the display element (4, 65) directly or via a switch element.
- Multilayer flexible film body according to Claim 9, characterized in that the decorative layer system (11) has two or more layers which form an electrochemical flat battery as electrical energy source (63).
- Multilayer flexible film body according to Claim 9 or 10, characterized in that the decorative layer system has one or more electrically conductive layers, which are formed at least in part as an antenna for the electromagnetic coupling of electromagnetic energy from an alternating electromagnetic field, the antenna being interconnected with a capacitor and an inverter as energy source for generating a direct current.
- Multilayer flexible film body (1) according to one of Claims 9 to 11, characterized in that the decorative layer system (11) has one or more electrically conductive layers (12), which are formed at least in part as plate-shaped metal surfaces (21, 22) for the capacitive coupling of energy from an alternating electromagnetic field, the plate-shaped metal surfaces (21, 22) being interconnected with an inverter and a capacitor as energy source for generating a direct current.
- Multilayer flexible film body according to one of Claims 9 to 12, characterized in that the decorative layer system has as energy source one or more layers forming a solar cell.
- Multilayer flexible film body according to one of Claims 9 to 13, characterized in that the decorative layer system has as energy source one or more layers consisting of a piezoelectric material.
- System comprising a multiplicity of outer packagings for goods which are provided with a multilayer flexible film body, forming a dynamic optical label, according to one of Claims 1 to 14, and an activator which has a transmitter for emitting an activation signal, two or more different groups of outer packagings being provided, and the outer packagings of the same group respectively having the same activatable information item which differs from the activatable information item of the other groups.
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TW201351239A (en) * | 2010-06-07 | 2013-12-16 | Wintek Corp | Touch-sensitive device and touch-sensitive display device |
ES2394645B1 (en) * | 2010-08-30 | 2014-01-22 | Bsh Electrodomesticos España, S.A. | HOUSING COVER PLATE, AND COOKING FIELD WITH A COVER PLATE OF SUCH TYPE |
US8976093B2 (en) * | 2010-12-16 | 2015-03-10 | Palo Alto Research Center Incorporated | Printed interactive card with piezo-powered indicator |
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DE102011119172A1 (en) * | 2011-11-23 | 2013-05-23 | Faubel & Co. Nachfolger Gmbh | Method for manufacturing electronic controllable display system that is printed on e.g. self-adhesive label, involves applying two element structures on trajectories of rollers, respectively, and obtaining system by combining trajectories |
JP2013186183A (en) * | 2012-03-06 | 2013-09-19 | Toppan Tdk Label Co Ltd | Security label using electrochromic material |
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-
2007
- 2007-09-12 DE DE102007043407A patent/DE102007043407A1/en not_active Withdrawn
-
2008
- 2008-09-11 AU AU2008297932A patent/AU2008297932B2/en not_active Ceased
- 2008-09-11 ES ES08802006T patent/ES2371057T3/en active Active
- 2008-09-11 CA CA2698548A patent/CA2698548C/en not_active Expired - Fee Related
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- 2008-09-11 JP JP2010524396A patent/JP5405471B2/en not_active Expired - Fee Related
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- 2008-09-11 WO PCT/EP2008/007445 patent/WO2009033662A1/en active Application Filing
- 2008-09-11 CN CN200880106887.5A patent/CN101802890B/en not_active Expired - Fee Related
- 2008-09-11 EP EP08802006A patent/EP2188799B1/en active Active
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JP5405471B2 (en) | 2014-02-05 |
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KR101468762B1 (en) | 2014-12-03 |
US8604907B2 (en) | 2013-12-10 |
CA2698548C (en) | 2016-01-05 |
CN101802890A (en) | 2010-08-11 |
ES2371057T3 (en) | 2011-12-27 |
JP2010540353A (en) | 2010-12-24 |
AU2008297932A1 (en) | 2009-03-19 |
EP2188799A1 (en) | 2010-05-26 |
WO2009033662A1 (en) | 2009-03-19 |
CA2698548A1 (en) | 2009-03-19 |
AU2008297932B2 (en) | 2012-09-27 |
DE102007043407A1 (en) | 2009-03-19 |
US20100245112A1 (en) | 2010-09-30 |
CN101802890B (en) | 2012-11-07 |
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