JP2008305116A - Non-contact type ic card - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a non-contact type IC card using UHF or higher frequency band, with less influence of dielectrics and stable communication performance. <P>SOLUTION: The non-contact type IC card 1 using the UHF or higher frequency band, i.e. 800 MHz to 3 GHz, is formed like an approximate rectangle and provided with an inlet 20 formed by an antenna coil 3 disposed on a base film 2 and an IC chip 4 electrically connected to the antenna coil 3, and non-antenna areas 5 in which no antenna coil 3 is disposed are formed in a range of 15 mm which corresponds to one finger from the vertexes of four corners of the non-contact type IC card 1. Visual printing patterns 30 expressing a finger design for example are printed at four corners of a plastic film 10 which is the surface of the non-contact type IC card 1. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a non-contact type IC card that performs non-contact information communication, and more particularly to a non-contact type IC card using radio waves of UHF (Ultra High Frequency) band or higher.

In recent years, non-contact type IC cards and IC tags that are used for non-contact communication with reader / writers and used for process management, distribution management, and information display in factories are widely used.
The non-contact type IC card is provided with an IC chip and an antenna, and data communication can be performed in a non-contact manner using the antenna. The most widely used non-contact type IC card communicates using the electromagnetic induction method as a transmission method, but the non-contact type IC card of the type that communicates with the radio wave method of the UHF band or higher is generally used. Dipole antennas are used for various applications, taking advantage of the longer communication distance compared to non-contact IC cards of the type that communicate using electromagnetic induction (for example, patents) Reference 1).

  For example, taking advantage of this long communication distance, a system for monitoring and managing entrance and passage permission of factories and the like using a non-contact IC card of a type that communicates with radio waves of UHF band or higher has been put into practical use. . In such a system, a driver of a vehicle such as a truck carries an IC card, etc., and a gate or a reader is provided in an area where entrance / exit of an outsider of a facility or building is restricted. There is a method of holding a contact IC card and determining and managing the passage permission based on the read ID.

JP 05-290029 A

However, a conventional non-contact type IC card that communicates with radio waves of the UHF band or higher is easily affected by water and oil as dielectrics, and communication performance is deteriorated. This has a problem that it becomes more noticeable by touching the antenna portion.
For example, in a factory where a system for monitoring and managing the passage permission is introduced, if a vehicle such as a loaded truck is at the entrance gate and the driver holds the IC card over the reader, it is within the communication distance. However, when a person holds the IC card by hand, the communication performance deteriorates and communication becomes impossible, and there is a trouble that the user must go down and directly hold the reader / writer.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a non-contact type IC card that uses a frequency band higher than the UHF band, which is less influenced by dielectrics and has stable communication performance.

  In order to achieve the above-mentioned object, the present invention is a non-contact IC card in which a UHF band or higher is used as a communication frequency, and an antenna coil disposed on a base film substrate and an IC connected to the antenna coil. A non-contact type IC card comprising an inlet formed with a chip, wherein the antenna coil is not disposed near the apex of at least one corner of the non-contact type IC card.

Further, it is desirable that the antenna coil is not disposed within a range of 15 mm from the apex of at least one corner of the non-contact type IC card.
The communication frequency is preferably 800 MHz or more and 3 GHz or less.
Moreover, it is desirable to laminate at least one film layer on at least one surface of the inlet.
The film layer is preferably provided via an adhesive layer.
It is desirable to print a visible pattern on the surface of at least one corner of the non-contact IC card in which the antenna coil is not provided.
The pattern is preferably a finger design.

The “IC chip” includes a control unit, a memory unit for storing information, a non-contact type IC wireless communication unit, and the like.
The “inlet” is a primary processed member before the exterior base material is disposed.

  A non-contact type IC card according to the present invention includes an inlet formed of an antenna coil disposed on a base film base material using a UHF band or higher as a communication frequency, and an IC chip connected to the antenna coil, No antenna coil is disposed near the apex of at least one corner of the non-contact IC card.

  In the present invention, by providing an antenna non-arrangement area, it is possible to reduce deterioration of communication performance due to the influence of a dielectric such as a person holding a card by hand, and to further improve the communication performance. Play. The non-contact type IC card configured as described above makes it possible to improve the efficiency of the operation of a system or the like that monitors and manages entrance and passage permission in a factory or the like.

  The present invention has been made in view of the above points, and can provide a non-contact type IC card that uses a frequency band higher than the UHF band, which is less influenced by dielectrics and has stable communication performance.

  Hereinafter, preferred embodiments of a non-contact type IC card according to the present invention will be described in detail with reference to the accompanying drawings. In the following description and the accompanying drawings, the same reference numerals are given to components having substantially the same functional configuration, and redundant description will be omitted.

FIG. 1 is a diagram showing a non-contact type IC card 1 according to the present embodiment. FIG. 1 shows an example of a non-contact type IC card 1. As shown in FIG. 1, the non-contact type IC card 1 is formed in a substantially rectangular shape (for example, 86 × 54 mm), and a base film 2, An antenna coil 3 and an IC chip 4 are provided.
In the non-contact type IC card 1, the antenna coil 3 is disposed on the base film 2, and the inlet 20 of the non-contact type IC card 1 is formed from the IC chip 4 electrically connected to the antenna coil 3. An antenna non-arrangement area 5 in which the antenna coil 3 is not disposed is provided in a range of 15 mm corresponding to one finger from the apex of the four corners of the non-contact IC card 1.

  The communication frequency is selected from a frequency band of UHF wave band of 800 MHz to 3 GHz. For example, 860 MHz to 960 MHz band (UHF band): communication method (radio wave method), dipole antenna, 2.45 GHz band (microwave band): communication method (microwave method), dipole antenna.

FIG. 2 is a sectional view of the non-contact type IC card 1 and shows a layer structure.
As shown in FIG. 2, the non-contact type IC card 1 has a layer structure of a plastic film 10, an adhesive layer 11, an inlet 20, an adhesive layer 11, and a plastic film 10. Adhesive is pasted on the surface of the base film 2 of the formed inlet 20 on the antenna coil 3 and IC chip 4 side and on the opposite side, and a plastic film 10 is pasted on the base film 2 as a surface base material. Then, the plastic film 10 is formed.

  The base film 2 that is the base material of the inlet 20 includes PET (polyethylene terephthalate), PET-G (terephthalic acid-cyclohexanedimethanol-ethylene glycol copolymer), PP (polypropylene), PE (polyethylene), and PC (polycarbonate). ), PA (polyamide), PPS (polyphenylene sulfide), polyvinyl chloride, vinyl chloride-vinyl acetate copolymer, cellulose diacetate, cellulose triacetate, polystyrene, ABS, polyacrylate, polyethylene, polyurethane, etc. Is used.

  Further, as the plastic film 10, the materials listed in the base film 2 described above are used.

  Moreover, the adhesive which forms the contact bonding layer 11 uses various materials, such as polyacrylic acid ester, a rubber-type adhesive, and a silicone adhesive.

  In the present embodiment, the plastic film 10 is formed by adhering to the base film 2 via an adhesive. However, the present invention is not limited thereto, and for example, a double-sided tape or the like may be used. Alternatively, the plastic film 10 may be sequentially laminated on both surfaces of the inlet 20 without using an adhesive, and the outer peripheral edge may be crimped.

FIG. 3 is a view showing the surface of the non-contact type IC card 1.
As shown in FIG. 3, in a region corresponding to the antenna non-arrangement area 5 where the antenna coils 3 at the four corners of the plastic film 10 on the surface of the non-contact type IC card 1 are not disposed, for example, finger A print pattern 30 representing the design is printed. The printed print pattern 30 (finger design) guides the position held by the hand of the non-contact type IC card 1 to the antenna non-arrangement area 5 when the non-contact type IC card 1 is held over.

FIG. 4 is a cross-sectional view of the non-contact type IC card 1 on which the print pattern 30 is printed.
As shown in FIG. 4, a printing layer 12 on which a printing pattern 30 is printed is provided on the surface side of the film layer made of the plastic film 10 of the non-contact type IC card 1, and further, the adhesive layer 11 is interposed on the surface side. Then, a film layer made of the plastic film 10 is laminated as a surface substrate. Thus, on the surface side of the non-contact type IC card 1, not only one layer but also a plurality of layers such as the print layer 12 and the film layer may be provided on the surface side of the film layer made of the plastic film 10.

  As described above, according to the embodiment of the present invention, the non-contact type IC card 1 that uses a frequency band of 800 MHz or more and 3 GHz or less of UHF wave band or more as a communication frequency is formed in a substantially rectangular shape, and is a base film. 2 is provided with an inlet 20 of a non-contact IC card 1 from an IC chip 4 that is electrically connected to the antenna coil 3, and is provided with fingers from the corners of the four corners of the non-contact IC card 1. An antenna non-arrangement area 5 in which the antenna coil 3 is not disposed is provided in a range of 15 mm which is one. Printable patterns 30 representing, for example, finger designs, are printed at the four corners of the plastic film 10 on the surface of the non-contact type IC card 1.

Thereby, by providing the antenna non-arrangement area 5, it is possible to reduce deterioration of communication performance due to the influence of a dielectric such as a person holding a card by hand, and to further improve the communication performance. Play.
Further, in the system for monitoring and managing entrance and passage permission in a factory or the like using the non-contact type IC card configured as described above, the conventional inconvenience due to the inability to communicate when holding the IC card is released.
In addition, by printing a finger design on the surface of the antenna non-arrangement area 5, the position of the non-contact type IC card 1 held by the hand is guided to the antenna non-arrangement area 5.

  The preferred embodiments of the non-contact type IC card 1 according to the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to such examples. It will be apparent to those skilled in the art that various changes or modifications can be conceived within the scope of the technical idea disclosed in the present application, and these are naturally within the technical scope of the present invention. Understood.

The figure which shows the non-contact-type IC card 1 which concerns on this Embodiment Sectional view of non-contact IC card 1 The figure which shows the surface of the non-contact type IC card 1 Sectional view of the non-contact type IC card 1 on which the printing pattern 30 is printed

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ......... Non-contact type IC card 2 ......... Base film 3 ......... Antenna coil 4 ......... IC chip 5 ......... Antenna non-arrangement area 10 ......... Plastic film 11 ... …… Adhesive layer 12 ... ... Print layer 20 ... Inlet 30 ... Print pattern

Claims (7)

A non-contact IC card in which a UHF band or higher is used for communication frequency,
An inlet formed by an antenna coil disposed on a base film substrate and an IC chip connected to the antenna coil;
The non-contact type IC card, wherein the antenna coil is not disposed near the apex of at least one corner of the non-contact type IC card. 2. The non-contact type IC card according to claim 1, wherein the antenna coil is not disposed within a range of 15 mm from the apex of at least one corner of the non-contact type IC card. The contactless IC card according to claim 1, wherein the communication frequency is 800 MHz or more and 3 GHz or less. The non-contact type IC card according to claim 1, wherein at least one film layer is laminated on at least one surface of the inlet. The non-contact type IC card according to claim 1, wherein the film layer is provided via an adhesive layer. 2. The non-contact type IC card according to claim 1, wherein a visible pattern is printed on a surface of at least one corner of the non-contact type IC card not provided with the antenna coil. The non-contact type IC card according to claim 1, wherein the pattern is a finger design.

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