JP6736992B2 - Projection card - Google Patents

Description

The present invention relates to a non-contact IC card having an IC chip and an antenna, and particularly to a non-contact IC card having an unprecedented design.

An IC card incorporates a thin IC chip in a thin plate plastic material, and the IC chip has a program for performing predetermined information processing, and information can be recorded and read by the IC chip. It is a generic term.

IC cards are classified into "contact IC card", "non-contact IC card", and "composite IC card (or hybrid IC card)" that combines the two methods, depending on the interface means. To be

In the contact IC card, an external terminal electrically connected to the IC chip is provided on the IC card, the external terminal is connected via the external terminal, and communication is performed with the external terminal.

Although it can be said that the error rate of communication with such an external terminal of the contact IC card is extremely low, there are also problems that the external terminal is easily damaged by abrasion and that it is easily affected by static electricity charged on the card surface. It was

On the other hand, the non-contact IC card has a built-in antenna electrically connected to the IC chip, and power is supplied and information is exchanged via the antenna.

With this method, it is not necessary to expose the communication terminals to the surface of the card, so it can be said that there is no concern about damage to the terminals or reading errors due to static electricity.

The composite IC card has both of these functions, and any one of them can be selected according to the IC card use environment set by the card company.

Since the IC card uses the IC chip, it is now widely used as a portable data carrier with high security.

In particular, non-contact IC cards have been used in a wide range of fields because they can exchange information by simply touching a terminal. For example, card media for electronic money, key media for entrance and exit gates, card media for identity verification such as passports and driver's licenses, transportation commuter pass and ticket card media, etc. A wide variety.

Therefore, there is also a demand from businesses that utilize contactless IC cards to improve the design of the cards and to differentiate them.

In order to meet these demands, in the conventional methods, differentiating in appearance by examining the design of printing, the type of ink used for printing, or the transparency of the card shape or the substrate has been considered.

As such an example, Patent Document 1 proposes that the password-only IC card can be formed into various shapes such as a key holder type or a brooch type, and Patent Document 2 uses a transparent base material and at the same time a print design. It has been proposed to use a transparent material for an antenna that is likely to damage the antenna.

However, these methods have a problem that the designability is always fixed and dynamic change is scarce.

JP, 2004-265156, A Japanese Patent Laid-Open No. 11-151882

The present invention provides a non-contact IC card of extremely high design, which is accompanied by a dynamic change such as the appearance of an image that could not be confirmed when the card is held over a reader/writer. Is what you are trying to do.

The present invention has been made to solve these problems.
That is, the invention according to claim 1 is provided with a core sheet made of a thermoplastic resin and provided with an IC chip and a first antenna connected to the IC chip, and provided on both sides of the core sheet. An IC card having an exterior sheet, wherein the core sheet includes a light emitting element and a second antenna connected to the light emitting element, and at least one of the exterior sheets provided on both front and back sides. , on the side facing the core sheet, have a image forming area in the outer sheet, the outer sheet having at least the image forming region, consists of two or more layers structure, at least one layer of which is half It is a projection card characterized by being transparent .

According to a second aspect of the present invention, the exterior sheet is provided with a concealing function part having a concealing property and a non-concealing function part having no concealing property, and the non-concealing function part is at least the image. The projection card according to claim 1, wherein the projection card is provided in an area including a formation area.

The invention described in claim 3 is the projection card according to claim 1 or 2 , wherein the light emitting element is a light emitting diode.

By using the non-contact IC card of the present invention, a non-contact IC card with an extremely high design is provided when a card is held over a reader/writer and an image that has not been observed up to that point emerges on the card face. can do.

It is a conceptual diagram which shows the non-contact IC card utilization example of this invention. It is a top view showing an example of a non-contact IC card of the present invention. (A) Before light emission (B) After light emission It is sectional drawing which shows another example of the non-contact IC card of this invention. It is sectional drawing which shows another example of the non-contact IC card of this invention. It is sectional drawing which shows another example of the exterior sheet of this invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The common items in the figure are given the same numbers.

FIG. 1 is a conceptual diagram showing an application example of the non-contact IC card of the present invention, and FIG. 2 is a plan view showing an example of the non-contact IC card of the present invention.

By holding the non-contact IC card 10 of the present invention over the reader/writer (external terminal) 200, an observation image 35 that is not observed in a normal state appears to float up from the non-concealment function section 33.

Therefore, the present invention provides a projection card that is a non-contact IC card that exhibits a high design quality that cannot be achieved by a general card.

FIG. 3 is a sectional view showing an example of the configuration of the non-contact IC card of the present invention.

By holding the non-contact IC card 10 of the present invention over the reader/writer (external terminal) 200, the IC chip 40 and the reader/writer 200 are connected via the first antenna 61 provided in the non-contact IC card 10. At the same time, information is transmitted and received, and at the same time, the light emitting element 50 connected to the second antenna 62 is supplied with power by electromagnetic induction and emits light.

In the non-contact IC card 10 of the present invention, the cover sheet 30 is provided with the concealment function section 32, and the inside of the card cannot be confirmed in the area where the concealment function section 32 is provided.

Further, in the non-concealing function section 33, the image forming area 34 is provided on the surface side of the exterior sheet 30 that faces the core sheet 20, and it is difficult to check the inside of the card.

Therefore, it is difficult to visually confirm that the IC chip 40, the first antenna 61, the light emitting element 50, and the second antenna 62 are provided.

Further, in the area where the concealment function unit 32 is provided, the light emitting state of the light emitting element 50 cannot be confirmed.

However, when the light emitting element 50 emits light, the image forming area 34 is illuminated from the inner surface side of the card.

As a result, before the light emitting element 50 emits light, the observation image 50, which has been difficult to observe, appears as if it stands out and can be observed.

As shown in FIG. 2, the non-contact IC card 10 includes an IC chip 40, a first antenna 61 electrically connected to the IC chip 40, a light emitting element 50, and a second antenna electrically connected to the IC chip 40. The exterior sheet 30 is provided on both sides of the core sheet 20 provided with 62 and the like.

Here, the first antenna 61 and the second antenna 62 are those obtained by subjecting a metal foil typified by aluminum or copper to a pattern-like etching or punching process, a conductive ink by a screen printing method, a flexo printing method. Any method may be used, such as a method provided in a pattern by a known method such as a method, a gravure printing method, an inkjet method, or a method in which a wire is welded.

However, since the first antenna 61 electrically connected to the IC chip 40 and the second antenna 62 electrically connected to the light emitting element 50 may interfere with each other, the antenna It is necessary to calculate the number of turns, dimensions, and placement position.

Further, it is possible to design the frequency bands of electromagnetic waves or radio waves corresponding to the first antenna 61 and the second antenna 62 to be different from each other. In that case, the reader/writer 200 is provided with a transmitting unit corresponding to both frequency bands. In addition to the above, it is possible to design the shapes of the first antenna 61 and the second antenna 62 into shapes corresponding to the corresponding frequency bands.

The frequency band to be used may be 135 KHz or less, which is generally standardized by ISO, 13.56 MHz, 433 MHz, 900 MHz band, 2.45 GHz, and the like.

Further, when these antennas are provided, the core sheet may be composed of two thermoplastic resin layers and may be directly provided on any one of the core sheets, or polyethylene terephthalate (PET) or polyethylene. A method may be used in which it is provided on a base material made of naphthalate (PEN), polyimide (PI), paper, synthetic paper, etc., and enclosed in a core sheet by laminating or the like.

Alternatively, there is no problem even if a method in which a winding is directly provided around the IC chip or the light emitting element is used.

As the light emitting element 50, a light emitting diode (LED), an EL element, or the like can be used, but in view of stability and cost, the light emitting diode (LED) is preferable.

Further, the light emitting element 50 may be installed at any place as long as it does not interfere with the functions of the IC chip 40 and the first antenna 61, but the image forming area 34 is irradiated with light. It may be said that it is desirable to provide it at a position close to the image forming area 34, but it is not necessarily limited to this.

The core sheet provided with these is made of a transparent thermoplastic resin, specifically, polyethylene terephthalate resins, polyvinyl chloride resin, acrylonitrile-butadiene-styrene copolymer, polycarbonate resin, polyacrylic ester resin. Any thermoplastic resin such as polymethacrylic acid ester resin, polylactic acid resin, and polyolefin resin can be used alone or as a composite, alloy, or blend.

However, the resin used for the core sheet needs to irradiate the image forming area 34 with the light emitted from the light emitting element 50. Therefore, it can be said that the resin used is preferably a resin having higher transparency.

Further, an additive such as a stabilizer may be added to these resins, or an organic or inorganic fluorescent material or the like may be added.

The exterior sheet 30 has, as the base material 31, polyethylene terephthalate, polyethylene naphthalate, polyvinyl chloride, polyester, polycarbonate, polymethyl methacrylate, polystyrene, polylactic acid, polyvinyl alcohol, triacetyl cellulose, acrylonitrile-butadiene-styrene copolymer. It is possible to use a composite resin, an alloy body, a blend body or the like in which synthetic resins such as the above, natural resins, or modified resins of these resins are used alone or in combination.

Further, as the base material 31, a material to which a pigment such as titanium oxide or silica is added or a foamable base material may be used, and various treatments such as antistatic treatment and easy adhesion treatment have not been performed. But there is no problem.

The concealment function part 32 transfers a metal foil of aluminum, tin, copper, nickel, chromium, gold, silver, etc., a thin film provided with these metals by a vacuum deposition method or a sputtering method, or a transfer foil containing these. In addition, it may be provided as a masking ink layer containing metal powder such as aluminum, carbon, titanium oxide, precipitated barium sulfate, other pigments, or has a masking function. A film or the like may be laminated.

Further, in the area where the non-concealing function section 33 is provided, an image forming area 34 is provided on the surface side of the exterior sheet 30 that faces the core sheet 20.

The image forming area 34 includes a printed image using a printing ink such as so-called cyan, magenta, yellow, and black, an on-demand printed image by an inkjet method, and a fluorescent material typified by a light-collecting fluorescent dye. A printed image, a transmission hologram, or a pattern formed by using a metal foil, a metal foil film, or the like formed in a pattern, a transfer foil, a masking ink, or the like, which is used in the masking function unit 32, is used to form a pattern. An image can be formed by using a well-known technique such as a thing.

When an image is formed using a method similar to the method used for the concealment function unit 32, it is extremely difficult to confirm the image provided in a state where the light emitting element 50 does not illuminate the inside of the card. Therefore, it can be said that it is more suitable.

Further, the concealment function part 32 may be provided on the surface of the exterior sheet 30 opposite to the core sheet 20 as shown in FIG. 3, or as shown in FIG. It may be provided between the material 31 and the core sheet 20.

The exterior sheet 30 may be provided with a semitransparent layer 36 as shown in FIG. By providing the semi-transparent layer 36, it becomes more difficult to recognize the image pattern provided in the image forming area 34 under the condition where the light emitting element 50 does not irradiate the light, that is, under the normal condition. You can

The translucent layer 36 is provided as an ink layer in which various additives such as silica, aluminum oxide, titanium oxide, precipitated barium sulfate, talc, organic fine particles, organic or inorganic hollow fine particles are added to a resin binder. Alternatively, it may be laminated with a semitransparent film, or may be an ultrathin metal thin film such as a half mirror provided by a vacuum deposition method or a sputtering method, but it is semitransparent. If so, it is not limited to these.

Here, the semitransparent layer 36 does not necessarily have to be between the base material 31 and the image forming area 34 as shown in FIG. 5, and when the non-contact IC card 10 is viewed externally, the entire image forming area 34 is visible. It may be provided in any place as long as it covers the.

Alternatively, the base material 31 itself may be the semitransparent layer 36 by a method of adding a pigment, a filler, or the like to the base material 31, or providing a bubble layer by foaming or the like.

The exterior sheet 30 may be provided with various printing layers, magnetic ink layers, protective layers, OVD (Optical Variable Device) layers typified by holograms, and the like.

Further, an adhesive layer or the like may be provided between the core sheet 20 and the exterior sheet 30.

As described above, by using the non-contact IC card of the present invention, when the reader/writer is held, an observation image 35 that cannot be normally observed appears on the face of the card. An IC card can be provided.

(Example 1)
Two sheets of Toray Industries, Inc. Lumirror T-60 (thickness 0.125 mm) were prepared as the base material for the exterior sheet, and a concealing ink containing scale-like aluminum was printed on the entire surface of one side of the sheet for the back side of the card. On one surface of the sheet, a masking ink containing scaly aluminum is printed while partially providing a window opening, and on the surface opposite to the surface having the masking ink layer, the area of the masking ink layer window opening on the opposite surface. An image was printed on the above to produce an exterior sheet.

As the thermoplastic resin sheet for the core sheet, two sheets of PG-CHI (thickness 0.25 mm) manufactured by Mitsubishi Plastics Co., Ltd. are prepared, and MOA4 Mifare UltraLight (registered trademark) is a non-contact module with an antenna on the first sheet. For the mounted package and SML-E12D8WT86 manufactured by ROHM Co., Ltd., which is an LED (light emitting diode) chip, a fusion magnet wire 2-LOCK Y1CCAW (φ=0.1 mm) manufactured by Tokyo Special Electric Wire Co., Ltd. is electrically used as an antenna. The antenna-attached LED and the connected antenna were arranged, and a second thermoplastic resin sheet for core sheet was placed thereon to obtain a laminate.

The exterior sheets prepared above were stacked on the front and back of the laminate with the concealing ink layer on the outside, then hot pressed at a temperature of 140° C., cooled, and then cut into a card shape.

When the non-contact IC card obtained as described above was placed over a reader/writer for Mifare and checked, the printed pattern applied to the inner surface of the card could be observed so as to stand out.

Through the above examples, it was confirmed that the projection card of the present invention is a card exhibiting unprecedented design.

10... Non-contact IC card 20... Core sheet 30... Exterior sheet 31... Base material 32... Concealment function part 33... Non-concealment function part 34... Image forming area 35... Observation image 36... Translucent layer 40... IC chip 50... Light emission Element 61... First antenna 62... Second antenna 200... Reader/writer

Claims (3)

A core sheet made of a thermoplastic resin and provided with an IC chip and a first antenna connected to the IC chip;
An IC card having outer sheets provided on both front and back sides of the core sheet,
The core sheet includes a light emitting element and a second antenna connected to the light emitting element,
In at least one outer sheet which is provided on the front and back sides, on the side facing the core sheet, have a image forming area in the outer sheet, the outer sheet having at least the image forming region, two or more layers A projection card having a multi-layered structure, at least one of which is semitransparent . In the exterior sheet, a concealing function part having a concealing property and a non-concealing function part having no concealing property are provided,
The projection card according to claim 1, wherein the non-concealing function section is provided in an area including at least the image forming area. Projection card according to claim 1 or 2, characterized in that said light emitting element is a light emitting diode.