JP2003132328A - Non-contact type ic card - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a non-contact type IC card capable of reinforcing the protection of a capacitor. SOLUTION: This non-contact type IC card 10 is provided with a card base material 11, an antenna 14 embedded in the card base material 11, the capacitor 18, and an IC chip 15. The surface of the card base material 11 is provided with a recessed-shape embossed information record part 19. The embossed information record part 19 is provided in a position non-corresponding to the capacitor 18 so that the capacitor 18 is prevented from short-circuited and damaged in being embossed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a contactless IC card having an antenna and a capacitor, and more particularly to a contactless IC card capable of protecting the capacitor.

[0002]

2. Description of the Related Art IC cards are classified into contact type IC cards that perform data communication via contacts and non-contact type IC cards that have an antenna and perform data communication by an electromagnetic induction method. Of these, the contact type IC card is mainly used for payment purposes, and the non-contact type IC card is used for gate access control of a transportation system or the like.

An IC having a magnetic stripe portion used in cash cards, credit cards, etc.
Cards have also been developed, and a card system using a conventional magnetic stripe and a card system using an IC chip can be used with one card.

[0004]

In recent years, a non-contact type IC card in which an IC chip, an antenna and a capacitor are arranged inside a card substrate has been developed. In such a non-contact type IC card, by providing a capacitor separately from the antenna, the accuracy of the capacitor capacity can be improved, the frequency characteristics of the antenna can be stabilized, and the communication characteristics of the non-contact type IC card can be improved. It will be possible. However,
When the visible information recording part is provided on the card base material of the IC card by embossing or the like, the capacitor is destroyed, the plate spacing of the capacitor is changed, and the capacitor capacity is changed, which deteriorates the communication characteristics of the non-contact type IC card. The stability of communication characteristics may deteriorate.

The present invention has been made in view of the above points, and an object thereof is to provide a non-contact type IC card capable of strengthening protection of a capacitor.

[0006]

The present invention provides a card base material, an antenna embedded in the card base material, an IC chip and a capacitor embedded in the card base material and connected to the antenna. And a visible information recording portion provided on the surface of the card substrate, wherein the visible information recording portion has at least a concave information recording portion, and the concave information recording portion is arranged at a position not corresponding to the capacitor. It is a non-contact type IC card characterized in that

The present invention is a non-contact type IC card characterized in that the recessed information recording portion comprises an embossed information recording portion that has been embossed.

The present invention is a non-contact type IC characterized in that the recessed information recording portion comprises an indent information recording portion.
It's a card.

The present invention is a non-contact type IC card characterized in that the recessed information recording portion comprises a laser mark information recording portion formed by laser light.

According to the present invention, the visible information recording section further has a sign panel, and the sign panel is arranged at a position not corresponding to the capacitor.
It's a card.

According to the present invention, the visible information recording portion further has a hologram portion, and the hologram portion is arranged at a position not corresponding to the condenser.
It's a card.

The present invention is a non-contact type IC card characterized by further comprising a magnetic stripe portion provided on the surface of a card substrate, the magnetic stripe portion being arranged at a position not corresponding to a capacitor. .

According to the present invention, since the concave information recording section is arranged at a position not corresponding to the capacitor, the capacitor is not short-circuited or damaged when the concave information recording section is molded.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

1 to 3 show a non-contact type I according to the present invention.
It is a figure showing one embodiment of a C card. Here, FIG. 1 is an exploded view of the non-contact type IC card, and FIG.
FIG. 2B is a plan view of the C card, and FIG. 2B is AA ′ of FIG.
3 is a plan view of the non-contact type IC card.

As shown in FIG. 1, a non-contact type IC card 10
Is provided with a card base material 11 including a pair of insulating base material sheets 11a and 11b, and an antenna sheet 13 provided with a coiled antenna 14, and the antenna sheet 13 is arranged with the antenna sheet 13 interposed therebetween. Condenser 18
Is provided.

Further, the antenna 1 is provided on the antenna sheet 13.
4, the IC chip 15 connected to the antenna chip 4, the antenna 14, the capacitor 18, and the antenna sheet 13 to which the IC chip 15 is attached are a pair of base material sheets 11
It is arranged between a and 11b.

In this case, the lower surface of the antenna sheet 13 is
The base sheet 11a is adhered via the adhesive sheet 12a, and the upper surface of the antenna sheet 13 is adhered to the base sheet 11b via the adhesive sheet 12b. Therefore, the antenna sheet 13, the antenna 14, the IC chip 15, and the capacitor 18 are in a state of being embedded in the card base material 11 including the base material sheets 11a and 11b.

A magnetic stripe portion 17 is provided on the surface of the base sheet 11b of the card base 11. The magnetic stripe portion 17 is provided at a position that does not correspond to the capacitor 18 (a position that does not overlap the capacitor 18).

Further, the base sheet 11 of the card base 11
On the surface of b, the emboss information recording unit 1 is provided at a position not corresponding to the capacitor 18 (a position not overlapping the capacitor 18).
A visible information recording unit consisting of 9 is provided. The embossed information recording section 19 is formed into a recess by embossing the card substrate 11.

That is, as shown in FIGS. 2A and 2B, a non-contact type IC card is constructed by embedding the antenna coil 13, the antenna 14, the IC chip 15 and the capacitor 18 in the card base material 11. 10 can be obtained. After that, by embossing the surface of the card substrate 11 as shown in FIG. 3, the recessed embossed information recording portion 19 can be formed on the surface of the card substrate 11. In this case, the emboss information recording unit 19 is arranged at a position that does not correspond to any of the capacitor 18, the IC chip 15, and the antenna 14.

Next, the operation of this embodiment having such a configuration will be described.

When the non-contact type IC card 10 is brought close to an external reader / writer (not shown), the electromagnetic wave from the reader / writer is received by the antenna 14 of the non-contact type IC card 10. Next, the signal from the antenna 14 causes the IC chip 15
Is activated, and information from the IC chip 15 is sent to the reader / writer via the antenna 14.

In this case, the resonance frequency of the antenna 14 is

[Equation 1] It is represented by.

Here, f is the resonance frequency, L is the antenna inductance, and C is the capacitor capacity.

The capacitance of the capacitor is C = ε × S / d (2) It is represented by.

Here, ε is the dielectric constant, S is the plate area of the capacitor, and d is the plate gap of the capacitor.

As shown in FIGS. 1 to 3, since the embossed information recording section 19 is arranged at a position that does not correspond to any of the capacitor 18, the IC chip 15 and the antenna 14, it is arranged on the surface of the card base material 11. When the embossed information recording portion 19 having a concave shape is formed by performing embossing, the capacitor 18 is not damaged by short-circuiting or cutting. Therefore, the capacitance of the capacitor 18 does not change, and the communication characteristics of the IC card 10 can be kept good.

Further, since the embossed information recording section 19 is arranged at a position that does not correspond to either the IC chip 15 or the antenna 14, when the embossed information recording section 19 is molded, the IC chip 15 and the antenna 14 are not damaged. It can be surely prevented.

Further, since the magnetic stripe portion 17 is provided at a position which does not correspond to the capacitor 18, the capacitor 18 is not affected when the magnetic stripe portion 17 is provided.

Next, a modification of the present invention will be described with reference to FIG. The non-contact type IC card 10 shown in FIG. 4 is provided with a concave indent information recording section 21 instead of providing the embossed information recording section 19 as a concave information recording section.

In FIG. 4, the same parts as those in the embodiment shown in FIGS. 1 to 3 are designated by the same reference numerals and detailed description thereof will be omitted.

As shown in FIG. 4, the non-contact type IC card 1
The surface of the card substrate 11 of 0, the capacitor 18,
A recessed indent information recording section 21 is provided at a position that does not correspond to either the IC chip 15 or the antenna 14.

As described above, of the surface of the card substrate 11, the capacitor 18, the IC chip 15 and the antenna 1 are provided.
Since the concave-shaped indent information recording section 21 is provided at a position that does not correspond to any of No. 4, when forming the indent 21, the capacitor 18, the IC chip 15, and the antenna 1 are formed.
It is possible to reliably prevent the damage of 4.

Further, as shown in FIG. 4, the card substrate 11
A sign panel 20 is provided as a visible information recording unit on the surface of the. The sign panel 20 is provided so as to partially overlap the capacitor 18 in FIG. 4, but it is preferable to provide the sany panel 20 at a position not corresponding to the capacitor 18.

In each of the above embodiments, the visible information recording section has a concave information recording section, and the emboss information recording section 19 or the indent information recording section 21 is provided as the concave information recording section. However, a laser mark information recording portion formed by laser light as a concave information recording portion may be provided at a position not corresponding to any of the capacitor 18, the IC chip 15 and the antenna 14.

Further, as the visible information recording section, a hologram section may be provided at a position that does not correspond to any of the condenser 18, the IC chip 15 and the antenna 14.

[0038]

EXAMPLES Next, specific examples of the present invention will be described.

(Embodiment 1) The non-contact type IC card 10 in Embodiment 1 corresponding to the present invention has a short side 54 as a whole.
mm, the long side is 85.6 mm, and the thickness is 0.76 mm. The non-contact type IC card 10 is PVC, PET,
Insulating substrate sheet 11 made of polycarbonate, ABS, etc.
a card substrate 11 including a and 11b, an antenna sheet 13 to which an antenna 14 and a capacitor 18 are attached,
Thermosetting properties such as epoxy, thermoplastic properties such as polypropylene,
Alternatively, a reactive adhesive sheet 12a made of polyethylene or the like, 1
2b, the IC chip 15, the magnetic stripe portion 17,
It has a recessed embossed information recording portion 19 (see FIG. 1).
Through FIG. 3).

The antenna sheet 13 is made of PVC, PET,
Made of insulating sheet such as polycarbonate, ABS,
The antenna 1 is formed by laminating copper foil (thickness: 35 μm) on both surfaces of this insulating sheet and performing etching treatment.
4 and a capacitor 18 are formed. Antenna 14
Has a winding number of 3 turns and an outer peripheral shape of 50 mm × 80 mm. The antenna 14 is an embossed information recording unit 19
It is placed in a position that does not overlap with (Fig. 2).

Further, as shown in FIG. 3, the capacitor 18 is formed at a position where it does not overlap the embossed information recording section 19.

(Comparative Example 1) Example 1 except that the capacitor 18 and the embossed information recording section 19 partially overlap each other.
An IC card 10 was manufactured in the same manner as in (FIG. 5).

(Evaluation) In the non-contact type IC card 10 of Comparative Example 1, when embossing is performed to form the embossed information recording portion 19, the capacitor 18 is short-circuited, and the resonance frequency of the antenna 14 is before embossing. It became higher than that and communication became impossible.

On the other hand, the non-contact type I in Example 1
Even when the C card 10 was embossed, the capacitance of the capacitor 18 and the resonance frequency of the IC card 10 did not change, and the communication characteristics did not deteriorate when the embossed information recording section 19 was molded.

(Embodiment 2) The non-contact type IC card 10 in Embodiment 2 corresponding to the present invention has a short side 54 as a whole.
mm, the long side is 85.6 mm, and the thickness is 0.76 mm. The IC card 10 is made of PVC, PET, polycarbonate, ABS or other insulating base material sheets 11a, 11b.
A card substrate 11, an antenna sheet 13 to which an antenna 14 and a capacitor 18 are attached, and thermosetting, thermoplastic, or reactive adhesive sheets 12a, 12
b, the IC chip 15, the magnetic stripe portion 17, the concave indent information recording portion 21, and the sign panel 20.
And (FIG. 4).

The antenna sheet 13 is made of PVC, PET,
Made of insulating sheet such as polycarbonate, ABS,
Copper foil (thickness: 35 μm) is laminated on both surfaces of this insulating sheet, and an etching treatment is performed to form an antenna 14 and a capacitor 18 having a winding number of 3 turns and an outer circumference of 50 mm × 80 mm.

The capacitor 18 is formed on the sign panel 20 as shown in FIG. 4, but is not formed on the indent information recording section 21.

(Comparative Example 2) An IC card 10 was produced in the same manner as in Example 2 except that the capacitor 18, the sign panel 20 and the indent information recording section 21 partially overlap each other (Fig. 6).

(Evaluation) In the non-contact type IC card 10 of Comparative Example 2, when the indent information is printed to form the indent information recording portion 21, the capacitor 18 is deformed and the resonance frequency of the antenna 14 is not printed. Compared with, the communication distance became shorter.

Non-contact type IC card 10 in the second embodiment
When the sign panel 20 was installed and the indent information recording section 21 was printed, the capacitor capacity of the capacitor 18 and the resonance frequency of the IC card 10 did not change, and the communication characteristics did not deteriorate.

[0051]

As described above, according to the present invention, since the concave information recording portion is provided at a position not corresponding to the capacitor, the capacitor is short-circuited when the concave information recording portion is molded. It will not be damaged. Therefore, it is possible to obtain a non-contact type IC card capable of enhancing protection of the capacitor.

[Brief description of drawings]

FIG. 1 is an exploded view showing a non-contact type IC card according to the present invention.

FIG. 2 is a non-contact type I before molding the embossed information recording portion.
The figure which shows a C card.

FIG. 3 is a non-contact type I after molding the embossed information recording portion.
The top view which shows a C card.

FIG. 4 is a view showing a modified example of a non-contact type IC card.

FIG. 5 is a diagram showing a comparative example of a non-contact type IC card.

FIG. 6 is a diagram showing a comparative example of a non-contact type IC card.

[Explanation of symbols]

10 Non-contact type IC card 11 Card base material 11a, 11b Base sheet 12a, 12b adhesive sheet 13 antenna sheet 14 antenna 17 Magnetic stripe part 18 capacitors 19 Emboss information recording section 20 sign panel 21 Indent information recording section

Claims (7)

[Claims] 1. A card base material, an antenna embedded in the card base material, an IC chip and a capacitor embedded in the card base material and connected to the antenna, and provided on the surface of the card base material. And a visible information recording section, wherein the visible information recording section has at least a concave information recording section, and the concave information recording section is arranged at a position not corresponding to the capacitor. IC card. 2. The non-contact type IC card according to claim 1, wherein the recessed information recording portion is an embossed information recording portion which is embossed. 3. The non-contact type IC card according to claim 1, wherein the recess-shaped information recording section comprises an indent information recording section. 4. The non-contact type IC card according to claim 1, wherein the recessed information recording portion comprises a laser mark information recording portion formed by laser light. 5. The non-contact type IC card according to claim 1, wherein the visible information recording section further has a sign panel, and the sign panel is arranged at a position not corresponding to the capacitor. 6. The non-contact type IC card according to claim 1, wherein the visible information recording portion further has a hologram portion, and the hologram portion is arranged at a position not corresponding to the condenser. 7. The non-contact type IC according to claim 1, further comprising a magnetic stripe portion provided on the surface of the card substrate, the magnetic stripe portion being arranged at a position not corresponding to the capacitor. card.