Source: https://patents.google.com/patent/WO2015044041A1/en
Timestamp: 2019-05-24 23:32:02
Document Index: 291163522

Matched Legal Cases: ['art 10', 'art 10', 'art 10', 'art 10', 'art 10', 'art 10', 'art 10', 'art 30', 'art 30', 'art 30', 'art 30', 'art 30', 'art 30', 'art 30']

WO2015044041A1 - Smart card with display and production method thereof - Google Patents
Smart card with display and production method thereof Download PDF
WO2015044041A1
WO2015044041A1 PCT/EP2014/069964 EP2014069964W WO2015044041A1 WO 2015044041 A1 WO2015044041 A1 WO 2015044041A1 EP 2014069964 W EP2014069964 W EP 2014069964W WO 2015044041 A1 WO2015044041 A1 WO 2015044041A1
PCT/EP2014/069964
Stéphane Karafotis
Gilles Kodjagueuzian
2013-09-27 Priority to EP13306339.6A priority Critical patent/EP2854078A1/en
2013-09-27 Priority to EP13306339.6 priority
2014-09-19 Application filed by Gemalto Sa filed Critical Gemalto Sa
2015-04-02 Publication of WO2015044041A1 publication Critical patent/WO2015044041A1/en
The invention relates to the technical field of smart cards with displays. Such a card comprises, embedded in a transparent core (30), a multi-component module (32, 34) supporting the display (34). The card comprises: at least one layer (50, 51) of ink printed on the surface of the transparent core (30), except in a zone (45) facing the display (34), said at least one layer being opaque in at least one region (53); and a transparent film (42, 43) covering the at least one ink layer. The card is characterised in that the at least one layer is formed by a first opaque ink layer (37, 38) printed on the surface of the transparent core (30), except in a zone (45) facing the display (34) and a second ink layer (39, 41) forming a graphic design allowing customisation printed on the first ink layer (37, 38).
SMART CARD TO DISPLAY AND MANUFACTURING METHOD THEREOF
[0001] The invention relates to the technical field of smart cards to display.
[0002] display cards are especially used in banking. They can not just view past transactions, but also generate and display a single-use password for transactions by computer, for example. These cards have a flexible substrate carrying a printed circuit on which are electrically connected electronic components and in particular a microcontroller, a display, a battery and one or more pushbuttons for communicating with the card holder. Specifically, the microcontroller circuit is used to read the information in the chip, including the recent transactions have taken place, and display them on the screen.
[0003] A known method for producing such cards, as illustrated in Figure 1, consists in coating the flexible substrate 12 supporting the circuit board and electronic components, in a resin 1 1 transparent solidified at room temperature to forming a transparent heart 10, and then laminating, on each face of this transparent heart 10, a transparent protective film 21, 22. Prior to the lamination, the surface of the transparent film 21, 22, for covering a side of the transparent heart 10, with the exception of a region 15 next to the screen 14, is printed with a first layer 16, 17 forming an ink pattern graphical personalization of the card and a second layer opaque ink 18, 19. the fact of making an opaque layer between the heart and the transparent graphical personalization pattern avoids on the one hand, obtaining a translucent effect to the graphical personalization due to the presence transparent heart and on the other hand, the appearance of darker areas in the graphics customization, due to variations of light reflected by the transparent heart due to the presence of electronic components. These impressions are made by offset technique or screen printing. However, to obtain a sufficient opacity of the opaque ink layer, several layers must be removed sequentially, which implies a time lengthened drying, and generates storage problems during periods of drying. In addition, a long drying time may damage the transparent protective film 21, 22 supporting the impressions. Such a process is therefore long and costly. On the other hand, the ink used to produce the graphical personalization poorly adhering on the transparent film, an adhesive film is generally applied to the ink because this adhesive penetrates through the ink during rolling and thus enables good adhesion the transparent film on the heart. However, the successive opaque layers 18,19, necessary to obtain a sufficient opacity, rajoutent a thickness which prevents the adhesive to enter correctly the different ink layers so that the adhesion problems of the film 21 22 on the heart 10 also appear. [0004] The graphical impression of an opaque layer that does not allow to obtain on the one hand, a good visual quality map, due to the appearance of defects on the transparent protective film, and secondly , sufficient security against external attack and fraud due to the delamination problems of the transparent film and the possibility of re-laminating another film printed on the transparent heart, other alternatives have been sought.
[0005] Thus, to avoid these problems of opacity and adhesion, the document US8448872 discloses a display card, as illustrated in Figure 2. This map is formed by coating the flexible substrate 12 supporting the circuit board and electronic components including the display 14, a resin 1 1 low temperature to form the solidified transparent transparent heart 10. Then a layer of plastic material 24, 25 is opaque laminated on each face of this transparent heart 10. More particularly, the opaque layer 24 for covering the surface of the heart opposite the display 34 includes a zone 15, located above the display 14, provided with a window 26 made of transparent plastic material. The graphical personalization of the card is then achieved by printing an ink layer 16, 17 directly on the opaque layer 24, 25, except for the transparent window 26. The graphic customization layer is covered with a adhesive film 27, 28 which penetrates through the ink in the graphical personalization during rolling of a film 21, 22 external transparent, so as to enable a good attachment of the film 21, 22 of the opaque layer 24, 26.
[0006] However, such a plastic layer 24, 25, 26 opaque adds additional thickness to the card already includes large electronic components and, especially such a layer is disposed on both sides of the transparent heart 10, to obtain a satisfactory visual appearance of the graphic customization on both sides of the card.
[0007] The patent application 10 2009 009 263 A1 discloses a method of manufacturing a display board comprising the steps of providing a plastic window containing a heart and for printing an opaque ink layer ( 30) on the heart with the exception of the window, applying a transparent layer (28) on the opaque layer, and applying a layer of graphic customization on the transparent layer.
[0008] The invention therefore aims to remedy at least one of the disadvantages of the prior art. In particular, the invention is to provide a display board meeting the thickness stress, having a satisfactory visual appearance and showing no delamination problem. The invention also aims at providing an alternative for manufacturing such a display card that is fast, simple and inexpensive. [0009] To this end, the invention relates to a display chip card comprising, embedded in a transparent heart, a multi-component module supporting said display, said card being characterized in that it comprises:
at least an ink layer printed on the transparent surface of the heart, with the exception of a zone situated opposite said display, said at least one opaque layer being on at least one region
a transparent film covering said at least one ink layer.
[0010] Thus, the ink layer is printed directly on the heart transparent so that the transparent protective film is not deteriorated at the time of printing and drying of the ink in particular. The cohesion between the individual layers of the card allows a very good adhesion of the assembly, the transparent film is adhered on the ink used, which itself adheres to the heart transparent. This map presents a visual appearance of flawless quality in the transparent protective film without delamination problem.
[001 1] According to other optional features of the card: - said at least one layer is formed of a first opaque layer of ink printed on the transparent surface of the heart, with the exception of a zone situated opposite said display, and a second ink layer forming a graphical personalization pattern printed on said first ink layer, the card further comprises a clearcoat layer printed on said area of ​​said transparent heart facing said display, - the thickness of the varnish layer is equal to the thickness of said at least one ink layer,
- it further comprises, between the transparent and said heart at least one printed layer and / or the transparent lacquer layer, a layer of a transparent heat-activatable adhesive, the transparent adhesive layer is heat-activatable thermoplastic polyurethane the heart of the constitution transparent material is a solidified resin activatable thermo-re, - the thermally re-activatable resin is an epoxy type resin or polyurethane type copolymer, inks and / or incorporation of varnish ( or) printed layer (s) are polymerizable UV in UV diode,
- constitution of the ink opaque regions and / or the opaque first layer comprises an opacifying pigment based on titanium dioxide.
[0012] The invention further relates to a method for manufacturing a display chip card comprising a multi-component module supporting said display, said method comprising initially coating the multi-component in a heart modulus transparent and further comprising the steps of:
- printing on the surface of the heart transparent except for an area facing said display, at least one ink layer of which at least one region is opaque,
laminating a transparent film on said at least one ink layer. [0013] According to other optional features of the method: - the step of printing said at least one layer is produced by printing two distinct layers, a first layer printed on the transparent surface of the heart with the exception of an area facing said display, forming an opaque layer of ink and a second ink layer printed on said first opaque layer of ink, forming a pattern of graphic customization, the method further comprises the step of printing on said transparent area of ​​the heart, located facing said display, a layer of transparent varnish,
- printing steps are performed by inkjet, - the printing steps of the various layers of ink and / or clearcoat can be performed independently or with the same printing equipment inkjet the printing steps of the first and second ink layers are produced with the same printing equipment jet ink, - printing stages of the first ink layer and the clearcoat layer are made simultaneously with the same printing equipment inkjet printing stages of the second ink layer and the clearcoat layer are carried out simultaneously with the same printing equipment inkjet
- printing steps of the first and second ink layers and the transparent lacquer layer are carried out simultaneously with the same printing equipment inkjet
- prior to the first printing step is deposited a layer of a heat-activatable adhesive, the transparent film laminating step is performed at a temperature below 100 ° C, preferably below 95 ° C, for a duration less to 10 minutes, preferably less than 5 minutes.
[0014] The fact of the print (or) layer (s) of ink by ink jet allows not to damage the transparent resin heart of the constitution and prints a sufficient amount of ink for obtaining a satisfactory opacity. At the laminating step, the heat-activatable adhesive film or heat-activated resin constitution of the heart, allows obtaining a good adhesion of the (or more) layer (s) transparent ink on the heart as well as on the transparent protective film. [0015] Other features and advantages of the invention will appear on reading the following description given by way of illustrative and nonlimiting example, with reference to the appended figures which represent:
• Figure 1, already described, a sectional diagram of a display board according to a first prior art,
• Figure 2, already described, a sectional diagram of a display board according to a second prior art,
• Figure 3 is a sectional diagram of a display board according to a first embodiment of the invention, · Figure 4 is a sectional diagram of a display board according to another embodiment of the invention,
• Figure 5, a sectional diagram of a display board according to still another embodiment.
[0016] In the following description, the expression "ink layer", a homogeneous layer of superimposed ink drops and / or juxtaposed.
[0017] by means electronic module, a module with an integrated circuit chip electrically connected to a communication interface with and / or without contact.
[0018] The term multi-component module, a module comprised of a flexible substrate carrying a printed circuit on which are electrically connected to an electronic module and other electronic components, including a display.
[0019] The invention applies to any type of display card operating with and / or without contact. The communication interface of the electronic module of the card includes external contact pads to the IS07816 format, i.e. intended to be flush with the surface of the card, and / or an antenna embedded in the card body adapted to communicate without Contact according to IS014443 standard. The electronic module is part of a multi-component module. The multi-component module comprises particularly a flexible substrate carrying a printed circuit, the display and other components such as a battery, a microcontroller capable of accessing the information contained in the chip and to display them on the display and optionally one or more pushbuttons for communicating with the card holder. [0020] The same references are used in Figures 3-5 to designate the same elements.
[0021] Figure 3 shows a diagram of such a card in sectional view display. The map consists of several superposed layers on a central heart 30. The heart, referenced 30 in Figure 3, comprises multi-component module formed of a flexible substrate referenced 32, carrying a printed circuit (not shown) and various components electronic display 33 which referenced 34. This multi-component module 32, 33, 34 is embedded in a transparent heart formed by a transparent resin 31 solidified at room temperature. The multi-component module is so embedded in the resin 31.
[0022] The constitution of the resin material 31 may for example be a transparent resin, polyurethane PU, polymerizing at room temperature.
[0023] Optionally, the multi-component module may for example be disposed in a layer of plastic material, like PVC (polyvinyl chloride) serving as spacer and to maintain the multicomponent module and to fix its position in the heart resin 31 during coating.
[0024] In a subsequent step, a heat-activatable adhesive transparent layer is deposited on each of the outer surfaces of the heart transparent. This adhesive is especially selected from thermoplastic polyurethanes, also known under the acronym TPU (for "Thermoplastic Polyurethane"). This adhesive adheres well to the resin composition of the heart transparent. Its implementation temperature is preferably about 90 ° C to allow a good adhesion with the (or) the layer (s) of printed ink (s) on its surface at the time of subsequent rolling of a transparent protective film. Each of the transparent adhesive layer is thermally activatable referenced 35 and 36 in Figures 3 and 4.
[0025] Each adhesive layer 35, 36 is then coated with at least an ink layer 50, 51. This layer 50, 51 advantageously has at least one opaque region 53 next to the (or more) component (s) e (s) 33 of the module multicomponent 32, except for a region 45 next to the 34. the display layer 50, 51 further forms an additional personalization pattern, which can be opaque or not depending on the desired visual effect in at least one further region 52 having no electronic component facing. . More particularly, the area 45 of the surface of the heart 30, next to the display 34 is not coated with the ink layer, revealing an opening above the display 34.
[0026] In a preferred embodiment, as illustrated in Figure 4, the ink layer is formed of a first layer of ink (37, 38) opaque, except for a region ( 45) facing said display (34), and a second ink layer (39, 41) forming a graphical personalization pattern printed on said first ink layer (37, 38). The second ink layer forming the graphical personalization pattern may be mono- or polychromatic.
[0027] In this case, the opaque ink layer (37, 38) is preferably, but not limited to white. This white color can advantageously be obtained by means of an opacifying pigment based on Ti0 2 (Titanium dioxide).
[0028] The ink used for forming the ink or the printed layers, is preferably a curable ink to UV light. Advantageously, the ink used is polymerizable under UV radiation diodes, still denoted by LED-UV. These diodes have the advantage of consuming only very little energy and does not overheat the medium on which the ink is applied. Thus, the heat-activatable adhesive transparent TPU 35, 36 is not activated by a heat input one so that it is possible to print directly on the adhesive. After drying with UV, or the layer (s) of this ink (s) to a minimum thickness of Ι Ομηη. [0029] A transparent lacquer 40 is further applied by printing into the opening above the area 45 next to the display 34. Preferably, the varnish is a polymerizable varnish for cold UV, that is to say in the LED-UV.
[0030] The use of inks and varnish polymerizable under UV LED-UV allows to obtain a rapid drying in the cold. Moreover, the opacity of the ink used to form the opaque regions 53 or the opaque layer 37, 38 is much better than conventional inks solvent because, in the case of UV inks, the solvent is evaporated not when drying. There is no loss of material and the thickness of the layer after drying is equal to the applied ink thickness, that is to say at least 10μηι. [0031] Advantageously, the inks and coatings are applied by ink-jet. This technique is particularly advantageous because it allows to print in a single layer, a UV ink amount sufficient to achieve opacity or opaque regions 53 of the first layer 37, 38 which is satisfactory. In addition, the ink jet printing technique requires only little heat so that it does not deteriorate the resin 31 of the constitution transparent heart 30, or the adhesive layer 35, 36.
[0032] Advantageously, when the printed ink layer on the surface of transparent heart 30 is formed of several layers, printing stages of the different layers can be carried out independently or simultaneously, with the same printing equipment inkjet. Thus, the first layer of ink 37, 38 and the second layer 39, 41 of ink, or the first ink layer 37 and transparent lacquer layer 40, or the second layer 39 and the ink layer clearcoat 40, and finally all the ink layers 37, 39; 38.41 and transparent lacquer 40 may be carried out simultaneously or almost simultaneously with the same printing equipment inkjet. [0033] A device such as that described in US Patent 7286 257 enables printing of the various layers above one or more on (s) by a managing multiple print heads dedicated to a different print material . For example, an opaque 24 and transparent layer 40 in a window of the opaque layer and having the same thicknesses may be performed simultaneously during a pass or multiple passes of the plastic heart before jet printhead material or 'ink.
[0034] The different layers can be deposited selectively on at least part of the plastic heart or additional parts. The opaque layer may be deposited only in regard to electronic components or component (or portion) to be masked.
[0035] A final step then consists in laminating a transparent protective film 42, 43 on the surface of the layer 50, 51, or second layer 39, 41, and transparent varnish 40. Such transparent film generally has a thickness of the order of 150μη "ΐ. It is preferably coated with a polyurethane type adhesive PU or TPU thermoplastic polyurethane. It protects the surface of the card, and pattern customization against external attack and fraud . [0036] advantageously, the heat-activatable adhesive layer 35, 36 TPU thermoplastic polyurethane and the adhesive coating of the transparent protective film, PU or TPU polyurethane, a transparent film allows the lamination protection to lower temperature than the temperature conventionally used, generally between 130 and 150 ° C to laminate films on smart cards.
[0037] Thus, the rolling is carried out at a temperature below 100 ° C, preferably below 95 ° C, and even more preferably less than 92 ° C, for a period less than 10 minutes and preferably less than 5 min. Such rolling at low temperature allows not to damage the transparent film constitution materials and of the heart, not to deform the display 34, and leave the adhesive materials of the adhesive layer TPU 35, 36 and the film transparent 42, 43 of protection trap the ink layers 50, 51 or 37, 38, 39, 41 and the lacquer layer 40 to allow good adhesion of all layers with each other.
[0038] The thickness of the transparent lacquer layer 40, which is applied to the area 45 next to the display 34, is advantageously equal to the thickness of the ink layer 50 printed on the surface of transparent heart , or the sum of the thicknesses of the first and second layers of ink 37 and 39 when the printed layer is formed of two separate layers, in order to maintain flatness over the entire surface of the card by closing the opening left by the two layers of inks. Another advantage of this clearcoat layer 40 is that it also makes it possible to protect the display 34 during the rolling step.
[0039] In an alternative embodiment, it is possible to use UV inks containing water. In this case, at the time of drying by the LED-UV, the water contained in the ink evaporates, so that the thickness after drying of the remaining ink layer is less than the thickness of the layer applied ink but greater than the thickness obtained after heat-drying in a conventional solvent ink layer. In this case, the thickness 50 of the layer or the sum of the layer thicknesses 37, 39 and opaque graphical personalization is sufficiently thin, for example less than δμηη so that it is necessary to compensate the thickness in the area 45 next to the display, by a layer of transparent varnish. In this case indeed, the transparent protective film 42 and adhesive coating PU or TPU, let alone to compensate for this difference in thickness. [0040] Figure 5 shows a diagram of another card to display cross-sectional view, made according to another embodiment. The same references as in Figure 4 are used to designate the same elements. The essential difference between this embodiment and that of Figure 4 is that it does not comprise TPU adhesive layer between the heart 30 and the first ink layer 37, 38 and between the heart 30 and the glaze layer 40. in this case, the resin material 31 selected to embed the multi-component module is thermally re-activatable. Such resin may for example be an epoxy type resin or polyurethane copolymer type which also responsive to a relatively low temperature and allows a rolling at a temperature below 95 ° C. Thus, when the transparent film laminating step protector 42, 43 of the heart 30 carrying the ink layers 37, 38, 39, 41 and the varnish layer 40, the resin 31 of the heart constitution liquefies surface so that it adheres to the ink layers and varnish in the same manner as the adhesive layer TPU of the first two embodiments. The ink and lacquer layers therefore adhere very well on the one hand on the transparent heart and secondly on the transparent film of the coating adhesive protection, thus ensuring a very good cohesion of the assembly.
[0041] The various embodiments thus allow the production of a map respect the thickness constraints set by the IS07816 standard, with visual appearance of good quality, flawless in the transparent protective film, and without problem delamination.
smart display board comprising, embedded in a transparent heart (30), a multi-component module (32, 34) supporting said display (34), said card comprising: - at least one layer (50, 51) ink printed on the transparent surface of the heart (30), with the exception of an area (45) facing said display (34), said at least one opaque layer being on at least one region (53),
a transparent film (42,43) covering said at least one layer (50, 51) with ink, characterized in that said at least one layer is formed from a first ink layer (37, 38) printed on opaque the surface of the transparent heart (30), with the exception of an area (45) facing said display (34), and a second ink layer (39, 41) forming a printed graphic pattern customization over said first ink layer (37, 38).
Card according to one of claims 1, characterized in that it further comprises a layer (40) of transparent varnish printed on said region (45) of said transparent heart facing said display (34).
Card according to one of claims 1 to 2, characterized in that it further comprises, between the transparent heart (30) and said at least one layer (50, 51; 37, 38) printed and / or the layer ( 40) of transparent varnish, a layer of a heat-activatable transparent adhesive (35, 36).
Card according to claim 3, characterized in that the transparent adhesive layer is heat-activatable thermoplastic of polyurethane.
Card according to one of claims 1 to 2, characterized in that the material (31) of formation of the transparent heart (30) is a solidified resin thermally re-activatable.
Card according to claim 5, characterized in that the thermally re-activatable resin is an epoxy type resin or polyurethane-type copolymer.
Card according to one of claims 1 to 6, characterized in that the inks and / or constitution of the lacquer (or more) layer (s) printed (s) are polymerizable UV in UV diodes.
8. A method of manufacturing a display chip card comprising a multi-component module (32, 34) supporting said display (34), said method comprising initially coating the multi-component module in a transparent heart ( 30) and further comprising the steps of:
- printing on the surface of the transparent heart (30), with the exception of an area (45) facing said display (34), at least one ink layer, at least one opaque region (53),
laminating a transparent film (42, 43) on said at least an ink layer (50, 51). 9. The method of claim 8, characterized in that the step of printing said at least one layer is produced by printing two distinct layers, a first layer (37, 38) printed on the transparent surface of the heart to exception of an area (45) facing said display (34), forming an opaque layer of ink and a second ink layer (39, 41) printed on said first opaque ink layer (37 , 38), forming a graphical personalization pattern.
10. Method according to one of claims 9-9, characterized in that it further comprises the step of printing on said area (45) of transparent heart (30) facing said display (34), a layer of transparent lacquer (40). January 1. Method according to one of Claims 8 to 10, characterized in that the printing steps are carried out by ink jet.
12. A method according to one of claims 9 to 10, characterized in that the printing steps of the various layers of ink (37, 38, 39, 41) and / or clearcoat (40) can be performed independently or simultaneously with the same printing equipment inkjet.
13. A method according to one of claims 8 to 12, characterized in that prior to the first printing step is deposited a layer of a heat-activatable adhesive (35, 36).
14. A method according to one of claims 8 to 13, characterized in that the transparent film of the rolling step (42, 43) is carried out at a temperature below 100 ° C, preferably below 95 ° C, for lasting less than 10 minutes, preferably less than 5 minutes.
PCT/EP2014/069964 2013-09-27 2014-09-19 Smart card with display and production method thereof WO2015044041A1 (en)
EP13306339.6A EP2854078A1 (en) 2013-09-27 2013-09-27 Smart card with display and method for manufacturing same
EP13306339.6 2013-09-27
ES14771298T ES2708964T3 (en) 2013-09-27 2014-09-19 Smart card with display device and procedure for manufacturing it
EP14771298.8A EP3050003B1 (en) 2013-09-27 2014-09-19 Smart card with display and method for manufacturing same
US15/025,063 US9672461B2 (en) 2013-09-27 2014-09-19 Smart card with display and production method thereof
WO2015044041A1 true WO2015044041A1 (en) 2015-04-02
ID=49385195
PCT/EP2014/069964 WO2015044041A1 (en) 2013-09-27 2014-09-19 Smart card with display and production method thereof
US (1) US9672461B2 (en)
EP (2) EP2854078A1 (en)
ES (1) ES2708964T3 (en)
WO (1) WO2015044041A1 (en)
FR3038427B1 (en) * 2015-06-30 2018-06-22 Oberthur Technologies A microcircuit device comprising a screen and a reading area, and corresponding method for making
FR3045888A1 (en) * 2015-12-16 2017-06-23 Smart Packaging Solutions Smart card is personalized edges
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DE102011050794A1 (en) * 2011-06-01 2012-12-06 Bundesdruckerei Gmbh Security or value document and method of producing the
2013-09-27 EP EP13306339.6A patent/EP2854078A1/en not_active Withdrawn
2014-09-19 WO PCT/EP2014/069964 patent/WO2015044041A1/en active Application Filing
2014-09-19 US US15/025,063 patent/US9672461B2/en active Active
2014-09-19 EP EP14771298.8A patent/EP3050003B1/en active Active
2014-09-19 ES ES14771298T patent/ES2708964T3/en active Active
US20160260005A1 (en) 2016-09-08
EP2854078A1 (en) 2015-04-01
US9672461B2 (en) 2017-06-06
EP3050003B1 (en) 2018-08-29
EP3050003A1 (en) 2016-08-03
ES2708964T3 (en) 2019-04-12
CA2512086C (en) 2012-04-10 Metal-containing transaction card and method of making the same
EP0694873A2 (en) 1996-01-31 Optical card
WO2006081385A1 (en) 2006-08-03 Metal layer containing transaction card and method of making the same
KR20110026487A (en) 2011-03-15 Contactless card with security logo
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