• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a card (1), comprising an electrically non-conductive substrate (10), a first pattern (11a-11c) of electrically conductive material disposed on the substrate (10), and an electrically non-conductive coating ( 13) disposed on the first pattern (11a-11c) so that this first pattern (11a-11c) is covered, the card (1) further comprising a second pattern (12) in a predetermined gray percentage disposed on the electrically non-conductive substrate (10) which is the negative of the first pattern (11a-11c), and wherein the electrically non-conductive coating (13) is also applied to the second pattern (12) so that the second pattern (12) is covered. The invention furthermore relates to a method for manufacturing such a card (1).
    公开号:BE1021474B1
    申请号:E2012/0774
    申请日:2012-11-19
    公开日:2015-11-27
    发明作者:Marco Dehouwer
    申请人:Cartamundi Turnhout Nv；
    IPC主号:
    专利说明:

    MAP AND METHOD FOR MANUFACTURING A MAP
    The present invention generally relates to cards comprising zones of an electrically conductive layer that are to be covered with an electrically non-conductive layer. Such an electrically conductive layer can be formed from a metal foil such as aluminum, copper, iron or can also be formed from a conductive ink or a conductive coating.
    This invention finds application, for example, in interactive cards that are readable by capacitive sensor multi-touch devices with a capacitive sensor touch screen such as tablet PCs, smartphones, a number of game console types, all-in-one computers, etc. Other known capacitive multi-touch however, sensors are not excluded.
    The present invention more particularly relates to a card comprising an electrically non-conductive substrate; a first predetermined pattern of electrically conductive material applied to said electrically non-conductive substrate; and an electrically non-conductive coating applied to said electrically conductive material disposed on said substrate so that said first predetermined pattern is made of electrically conductive material.
    The present invention also relates to a method for manufacturing a card according to the invention, the method comprising the steps of providing an electrically non-conductive substrate; applying an electrically conductive material executed in a first predetermined pattern on said electrically non-conductive substrate; and applying an electrically non-conductive coating to said electrically conductive material applied to said substrate so that said first predetermined pattern is made of electrically conductive material.
    [05] At present, cards are already coded with a pattern of an electrically conductive layer to make them readable by means of a capacitive multi-touch sensor.
    For example, in WO 2010/051802 an information carrier is described which comprises an electrically non-conductive substrate, an electrically non-conductive adhesive layer and an electrically conductive information layer. In addition, at least one other layer is provided which at least covers the zone of the substrate with the structured information layer.
    In WO 2011/154524 an information carrier is described which comprises a substrate with at least one layer which is applied zone-wise and is electrically conductive, the layer being the touch structure. This touch structure comprises at least one conductive track, a interface surface and / or a touch point. At least one cover layer is disposed on the substrate and the electrically conductive touch structure to cover the touch structure so as not to damage it and render it invisible.
    Known cards with a predetermined pattern of an electrically conductive material all suffer from the disadvantage that, when the electrically conductive pattern that is applied to the substrate of the card, a coating is applied at the places where this coating the pattern of conductive material, a color difference in this cover layer can be observed. The color of this coating is therefore uneven, which is not desirable at all. For example, when a white coating is applied over the substrate and over the electrically conductive pattern, the white does not appear uniformly white at the locations where this electrically conductive pattern is located.
    The underlying problem of the invention arises from different colors of the electrically non-conductive coatings. This problem arises in particular when said electrically non-conductive coating comprises a white coating applied to said electrically non-conductive substrate and said first predetermined pattern of electrically conductive material.
    [10] Moreover, the underlying problem of the invention also arises from various application techniques of this electrically non-conductive layer. This problem arises in particular when the electrically non-conductive cover layer is printed over the first predetermined pattern of electrically conductive material, in particular when it is digitally printed, since printing ink is by definition transparent and cover layers never cover 100%. However, this problem can also occur when a thin cover layer, for example a thin paper layer, is laminated on said substrate and said first predetermined pattern of electrically conductive material.
    [11] A person skilled in the art confronted with this problem in the field of printing inks will have the normal reflex to apply several coatings or a more opaque layer over the substrate and the electrically conductive pattern to improve the color difference in this coating. However, this solution does not solve the underlying problem of the invention.
    [12] There is therefore a need to solve this problem.
    [13] According to a first aspect of the invention, a card is provided, comprising an electrically non-conductive substrate; a first predetermined pattern of electrically conductive material applied to said electrically non-conductive substrate; and an electrically non-conductive coating applied to said electrically conductive material disposed on said substrate so that said first predetermined pattern is made of electrically conductive material; said card further comprising a second predetermined pattern in a predetermined gray percentage applied to said electrically non-conductive substrate, said predetermined second pattern being the negative of said first predetermined pattern, and wherein said electrically non conductive cover layer is also applied to said second predetermined pattern, so that said second predetermined pattern is covered.
    [14] Surprisingly, in this way, almost no or no color difference is perceptible in the coating.
    [15] Said predetermined gray percentage is preferably embodied such that when said electrically non-conductive coating is applied to said first predetermined pattern of electrically conductive material and said second predetermined pattern, when said electrically not -conducting coating is examined, said electrically non-conducting coating has a uniform color and said first predetermined pattern of electrically conductive material is invisible [16] The gray percentage of said second predetermined pattern is specifically determined by the type and the color of said electrically conductive material of said first predetermined pattern and the type and color of the electrically non-conductive coating. A balance must be found between the color of the first predetermined pattern, the color of the negative of this first predetermined pattern and the coverage ratio of the electrically non-conductive coating. If an information layer is provided on the electrically non-conductive cover layer, this layer must also be taken into account in this balance.
    [17] Depending on the type and color of said electrically conductive material of said first predetermined pattern and the type and color of the electrically non-conductive coating, said gray percentage is preferably between 5% and 20%, more preferably between 8% and 18%.
    In a possible embodiment of a card according to the invention, said electrically non-conductive coating comprises a white coating applied to said first predetermined pattern of electrically conductive material and said second predetermined pattern.
    [19] In a preferred embodiment of a card according to the invention, said electrically non-conductive cover layer is printed on said first predetermined pattern of electrically conductive material and said second predetermined pattern.
    [20] Said first predetermined pattern of electrically conductive material preferably comprises one or more of the following: a metal foil applied to said electrically non-conductive substrate, an electrically conductive material which is applied to said electrically non-conductive substrate printed, a conductive coating applied to said electrically non-conductive substrate.
    [21] In an exemplary embodiment of a card according to the invention, said card is configured to interact with a multi-touch capacitive sensor.
    [22] Preferably, said first predetermined pattern is made of electrically conductive material to be capacitively detectable by said capacitive multi-touch sensor.
    [23] According to a further aspect of the invention, a method is provided for manufacturing a card according to the invention, the method comprising the steps of providing an electrically non-conductive substrate; applying an electrically conductive material executed in a first predetermined pattern on said electrically non-conductive substrate; and applying an electrically non-conductive coating to said electrically conductive material applied to said substrate so that said first predetermined pattern is made of electrically conductive material; the method further comprising the step of applying a second predetermined pattern in a predetermined gray percentage to said electrically non-conductive substrate, said predetermined second pattern being the negative of said predetermined first pattern, and the applying said electrically non-conductive cover layer to said second predetermined pattern so that said second predetermined pattern is covered.
    The invention will now be further described with reference to the drawings in which Figs. 1 illustrates the various production steps in figures 1a - 1e for the manufacture of an exemplary embodiment of a card according to the invention; FIG. 2 illustrates a section along line A-A of this exemplary embodiment of the card according to the invention as illustrated in FIG.
    [25] A card (1) according to the invention essentially comprises the following layers: an electrically non-conductive substrate (10); an electrically conductive material implemented in a first predetermined pattern (11a - 11c) disposed on said substrate (10); a second predetermined pattern (12) in a predetermined gray percentage applied to said electrically non-conductive substrate (10), said second predetermined pattern (12) being the negative (reverse) of said first predetermined pattern (12) (see Figure 1c); and an electrically non-conductive cover applied to (over) said electrically conductive material (11a - 11c) applied to said substrate (10) and said second predetermined pattern (12) such that predetermined patterns (11a) -11c, 12) are covered.
    [26] The predetermined gray percentage of the second predetermined pattern (12) is thereby designed such that when said electrically non-conductive cover layer (13) is applied to (over) said electrically non-conductive substrate (10) and said first predetermined pattern (11a-11c) to cover both, when viewing said electrically non-conductive cover (13), said electrically non-conductive cover (13) has a uniform color and said first predetermined certain pattern (11a - 11c) of electrically conductive material is invisible.
    [27] This predetermined gray percentage is determined by the type and color of said electrically conductive material of said first predetermined pattern (11a - 11c) and the type and color of the electrically non-conductive coating (13). More specifically, depending on the type of electrically conductive material of said first predetermined pattern (11a-11c), the gray percentage of the second predetermined pattern (12) is preferably between 5% and 20% and more preferably between 8% and 18%. As an example, when, for example, the first predetermined pattern (11a-11c) is made of aluminum, the gray percentage of the second predetermined pattern (12) is approximately 15%.
    [28] The electrically non-conductive substrate (10) can be made of cardboard, paper, derived wood products, composite materials, laminates, synthetic material, etc.
    The electrically conductive material formed in a first predetermined pattern (11a - 11c) may be formed from a metal foil such as aluminum, copper, iron, or may be formed from a conductive ink or a conductive coating. The first predetermined pattern (Halle) is preferably designed as a metal foil made of aluminum. For example, the metal foil can be applied to the substrate (10) by means of hot stamping or can be adhered to the substrate (10) by means of an adhesive layer (20).
    The method for manufacturing a card (1) according to the invention as described above comprises the steps of providing said electrically non-conductive substrate (10); applying said electrically conductive material executed in a first predetermined pattern (11a - 11c) to said electrically non-conductive substrate (10), and applying said second predetermined pattern (12) in a predetermined gray percentage on said electrically non-conductive substrate (10), wherein said predetermined second pattern (12) is the negative of said predetermined first pattern (11a - 11c); and applying said electrically non-conductive layer (13) to said first predetermined pattern (11a - 11c) of electrically conductive material and said second predetermined pattern (12) so that both said first predetermined pattern (11a) - 11c) of electrically conductive material if said second predetermined pattern (12) is covered.
    [31] As an example, in Figure 2, a cross-section of a card (1) according to the invention is shown, this card (1) being configured to interact with a capacitive multi-touch sensor (not shown in the figures) . Figures 1a - 1e show a method for manufacturing such a card (1).
    [32] The card (1) as shown in Figure 2 comprises an electrically non-conductive substrate (10), preferably from cardboard; a first predetermined pattern (11a - 11c) applied to said substrate (10), preferably from a metal foil adhered to the substrate (10) by means of an adhesive layer (20), said predetermined cartridge (11a - 11d) • one or more capacitively detectable cartridge elements (11a); and • one or more capacitive coupling elements (11c); wherein said capacitively detectable pattern elements (11a) and the coupling surfaces (11c) are arranged such that, when one or more touch elements configured to interact with the capacitive multi-touch sensor, such as human fingers, on one or more of the capacitive coupling elements (11c) are coupled, the capacitively detectable pattern elements (11a) are capacitively detected by the capacitive multi-touch sensor; a second predetermined pattern (12) in a predetermined gray percentage that is preferably printed on said electrically non-conductive substrate (10), said second predetermined pattern (12) being the negative (reverse) of said first predetermined certain pattern (11a - 11c) (see Figure 1c); and an information layer (14) which is preferably a printed layer; and a transparent covering layer (15) extending over the entire surface of the card (1), said transparent covering layer (15) being preferably a printed layer.
    The first predetermined pattern (11a-11c) as shown in Figs. 1b and 1c more particularly comprises a plurality of, in this specific embodiment 5, capacitively detectable circular islands (11a) as the capacitively detectable pattern elements; a square island (11c) as the capacitive coupling element, and a plurality of non-capacitively detectable tracks (11b), wherein each track (11b) connects two of said capacitively detectable islands (11a).
    It is noted here that the first predetermined pattern (11a - 11c) can be composed of any other number of capacitively detectable pattern elements (11a) in any other form and any other configuration and also any other number of capacitive coupling elements (11c) in any other form and any other configuration.
    [34] The gray percentage of the second predetermined pattern (12) depends on the color and type of the ink used and the color and type of the electrically conductive material from which the first predetermined pattern (11a - 11c) is made.
    [35] The method steps for manufacturing the exemplary embodiment of the card (1) according to the invention as described above and as shown in Figure 2 are the following: Figure 1a: providing the electrically non-conductive substrate (10) at preferably from cardboard; figure 1b: applying the first predetermined pattern (11a-11c) to the electrically non-conductive substrate (10), preferably by attaching a metal foil pattern (11a - 11d) to the substrate (10) by means of a adhesive layer (20), figure 1c: applying the second predetermined pattern (12) in a predetermined gray percentage on said electrically non-conductive substrate (10), the predetermined second pattern (12) being the negative of said predetermined first pattern (Halle), preferably by printing this second predetermined pattern (12); Figure 1d: applying the electrically non-conductive cover layer (13) to said first predetermined pattern (11a - 11c) of electrically conductive material and said second predetermined pattern (12) so that both said first predetermined pattern ( 11a - 11c) of electrically conductive material when said second predetermined pattern (12) is covered, preferably by printing this layer (13); and Figure 1e: the provision of an information layer (14) and on top of this information layer (14) a transparent covering layer (15) which extends over the entire surface of the card (1), both layers (14, 15) being preferably applied by pressing it.
    Although the present invention has been explained with reference to specific embodiments, it is obvious to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, and that the present invention can be made with various changes and modifications without deviate from the scope of protection. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes falling within the meaning and the equivalence range of the claims. , are therefore intended to be included therein. In other words, it is intended to cover all changes, variations or equivalents that fall within the scope of protection of the underlying basic principles and whose main characteristics are requested in this patent application. The reader of this patent application furthermore understands that the words "comprising" or "include" do not exclude other elements or steps, that the words "an" or "the Yth" do not exclude a multiple, and that a single element, such as a computer system, a processing unit or other integrated unit can fulfill the functions of various means cited in the claims. Reference characters in the claims may not be interpreted as limiting the respective respective claims. The terms "first", "second", third "," a " , "b", "c", and the like, when used in the description or in the claims, have been introduced to distinguish between similar elements or steps and do not necessarily describe a sequential or chronological order. Similarly, the terms "top", "bottom", "top", "bottom", and the like have been introduced for descriptive purposes and not necessarily to indicate relative positions. It is to be understood that the terms thus used are interchangeable under suitable conditions and embodiments of the invention of the present invention may operate in other sequences, or in orientations other than those described or explained above.
    权利要求:
    Claims (11)
    [1]
    A card (1) comprising an electrically non-conductive substrate (10); a first predetermined pattern (11a - 11c) of electrically conductive material disposed on said electrically non-conductive substrate (10); and an electrically non-conductive coating (13) applied to said electrically conductive material disposed on said substrate (10) so that said first predetermined pattern (11a-11c) of electrically conductive material is covered; CHARACTERIZED IN THAT said card (1) further comprises a second predetermined pattern (12) in a predetermined gray percentage applied to said electrically non-conductive substrate (10), said predetermined second pattern (12) being negative of said first predetermined pattern (11a-11c), and that said electrically non-conductive cover layer (13) is also applied to said second predetermined pattern (12), so that said second predetermined pattern (12) is covered.
    [2]
    A card (1) according to claim 1, characterized in that said predetermined gray percentage is designed such that when said electrically non-conductive coating (13) is on said electrically non-conductive substrate (10) and said first predetermined pattern (11a-11c) of electrically conductive material is provided when looking at said electrically non-conductive cover layer (13), said electrically non-conductive cover layer (13) has a uniform color and said first predetermined certain pattern (11a - 11c) of electrically conductive material is invisible.
    [3]
    A card (1) according to claim 1 or 2, characterized in that the gray percentage of said second predetermined pattern (12) is determined by the type and color of said electrically conductive material of said first predetermined pattern (11a - 11c) and the type and color of the electrically non-conductive coating (13).
    [4]
    A card (1) according to any of claims 1 to 3, characterized in that said gray percentage is between 5% and 20% depending on the type and color of said electrically conductive material of said first predetermined pattern (11a - 11c) and the type and color of the electrically non-conductive coating (13).
    [5]
    A card (1) according to claim 4, characterized in that said gray percentage is between 8% and 18% depending on the type and color of said electrically conductive material of said first predetermined pattern (11a - 11c) and the type and color of the electrically non-conductive coating (13).
    [6]
    A card (1) according to any one of claims 1 to 5, characterized in that said electrically non-conductive coating (13) comprises a white coating applied to said first predetermined pattern (Halle) of electrically conductive material and said second predetermined pattern (13) is arranged.
    [7]
    A card (1) according to any of claims 1 to 6, characterized in that said electrically non-conductive coating (13) on said first predetermined pattern (11a - 11c) of electrically conductive material and said second predetermined pattern (13) is printed.
    [8]
    A card (1) according to any one of claims 1 to 7, characterized in that said first predetermined pattern (11a - 11c) of electrically conductive material comprises one or more of the following: a metal foil which is applied to said electrically non-conductive substrate (10) is provided, an electrically conductive material printed on said electrically non-conductive substrate (10), a conductive coating applied to said electrically non-conductive substrate (10).
    [9]
    A card (1) according to any of claims 1 to 8, characterized in that said card (1) is configured to interact with a capacitive multi-touch sensor.
    [10]
    A card (1) according to claim 9, characterized in that said first predetermined pattern (11a - 11c) is made of electrically conductive material to be capacitively detectable by said capacitive multi-touch sensor.
    [11]
    A method of manufacturing a card (1) according to any of the preceding claims, wherein the method comprises the steps of providing an electrically non-conductive substrate (10); applying an electrically conductive material executed in a first predetermined pattern (11a-11c) to said electrically non-conductive substrate (10); and applying an electrically non-conductive cover layer (13) to said electrically conductive material disposed on said substrate (10) so that said first predetermined pattern (11a-11c) is made of electrically conductive material; Characterized in that the method further comprises the step of applying a second predetermined pattern (12) in a predetermined gray percentage on said electrically non-conductive substrate (10), said predetermined second pattern (12) is negative of said predetermined first pattern (11a-11c), and applying said electrically non-conductive cover layer (13) to said second predetermined pattern (12) such that said second predetermined pattern (12) is covered.
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    引用文献:
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    US6087990A|1999-02-02|2000-07-11|Antenna Plus, Llc|Dual function communication antenna|
    US8393547B2|2009-08-05|2013-03-12|Perfect Plastic Printing Corporation|RF proximity financial transaction card having metallic foil layer|
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    EP3002713A1|2014-10-02|2016-04-06|T-Touch International S.à.r.l.|Capacitive information carrier pattern integrated into print product artwork|
    FR3040516B1|2015-08-27|2017-09-15|Linxens Holding|METHOD FOR MANUFACTURING AN ELECTRIC CIRCUIT, ELECTRIC CIRCUIT OBTAINED BY THIS METHOD AND CHIP CARD COMPRISING SUCH AN ELECTRICAL CIRCUIT|
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    US11182038B2|2020-04-08|2021-11-23|Sigmasense, Llc.|Encoded data pattern touchscreen sensing system|
    法律状态:
    2021-08-11| MM| Lapsed because of non-payment of the annual fee|Effective date: 20201130 |
    优先权:
    申请号 | 申请日 | 专利标题
    EP12186530.7A|EP2713316B1|2012-09-28|2012-09-28|Card and method for manufacturing a card|
    EP121865307|2012-09-28|
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