JP2001236488A - Information medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To protect a print surface of an information displayed medium having an information display medium arranged in a recessed part formed on at least one of the top and reverse surfaces of a housing body, while preventing water from infiltrating the recessed part. SOLUTION: A support step edge 5 is formed by expanding the upper peripheral edge of the recessed part 3 sidewardly and a waterproof transparent film 6 which covers the information display medium 4 is stuck, while the recessed part 3 is sealed with the support step edge 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information medium such as an IC card, a magnetic card, and a coin-shaped data carrier having an information display medium for reversibly rewriting visible information on at least one of its front and rear surfaces.

[0002]

2. Description of the Related Art An information medium such as an IC card or a coin-shaped data carrier having a built-in IC circuit having a storage element for storing data in a rewritable manner is capable of high-capacity information recording management. In recent years, it has been introduced in a wide range of fields because of its high storage reliability and excellent security and convenience.

In such an information medium, when it is necessary to inform a user about information stored in a storage element, as shown in FIG. 3, a recess formed on the outer surface of an exterior body a An information display medium c for reversibly rewriting visible information and displaying the information is disposed in the area b, and required information is visually visibly printed on a print surface d of the information display medium c.

[0004]

As the information display medium c, a medium having a high printing density and capable of displaying clear information is required. For this purpose, a magnetic reversible display medium is preferably used. Can be This magnetic reversible display medium has a recording layer in which a number of microcapsules containing a liquid and a magnetic powder floating in the liquid are coated on a base film together with a binder. By using a reversible display medium as the information display medium c, it is possible to display clear information, but this magnetic reversible display medium has poor water resistance,
There is a problem that when water enters from the cut surface of the side surface, the water deteriorates and the original number of rewrites cannot be digested. Further, in the conventional configuration, since the printing surface d of the information display medium c is disposed so as to be the same height as or slightly higher than the outer surface of the exterior body a, the printing surface d is not scratched. However, there is a problem that the display is difficult to see.

An object of the present invention is to provide an information medium having a configuration capable of solving such a conventional problem.

[0006]

SUMMARY OF THE INVENTION The present invention relates to an information medium in which an information display medium for reversibly rewriting and displaying visible information is provided in a recess formed on at least one of the front and back surfaces of an exterior body. Forming a supporting step edge by expanding an upper peripheral edge of the recess to the side, and attaching a waterproof transparent film covering the information display medium by sealing the recess to the supporting step edge. Information medium.

Here, the waterproof transparent film is preferably a synthetic resin film made of a material such as polyester, polycarbonate, PET and the like which has excellent surface lubricity and is resistant to damage.
Those having a thickness of about 30 to 100 μm can be suitably used. In addition, as long as it has transparency so that information such as characters displayed on the printing surface of the information display medium can be visually recognized, it may be appropriately colored other than colorless and transparent. Then, as described above, a waterproof transparent film that covers the information display medium by sealing the recess is attached to the supporting step edge formed by expanding the upper peripheral edge of the recess to the side. The waterproof transparent film can prevent water from entering the recess and protect the printing surface of the information display medium. Furthermore, as described above, by adhering the waterproof transparent film to the supporting step edge, the waterproof transparent film does not protrude to the outer surface of the exterior body, thereby,
It is possible to prevent the waterproof transparent film from peeling off due to the edge being caught on something.

The present invention further includes a storage element for rewritably storing data in the exterior body, and is stored in the storage element in a recess formed on at least one of the front and back surfaces of the exterior body. An information display medium for reversibly rewriting the visible information based on the data, and displaying the information information, wherein the upper peripheral edge of the recess is expanded to the side to form a supporting step edge, An information medium characterized in that a waterproof transparent film for covering an information display medium is adhered by sealing a recess at a step edge.

[0009] In such a configuration, the information medium is an IC.
It can be used as an information medium such as a card or a coin-shaped data carrier. In such an information medium, similarly to the above, it is possible to prevent water from entering the recess by the waterproof transparent film, The printed surface of the display medium can be protected, and the waterproof transparent film can be prevented from peeling off due to the edge being caught on something.

In the above-mentioned structure, the information display medium includes a recording layer in which a number of microcapsules containing a liquid and a magnetic powder floating in the liquid are coated on a base film together with a binder. A configuration using a magnetic reversible display medium can be proposed. By making the information display medium a magnetic reversible display medium in this way, clear information can be displayed, and as described above, water can be prevented from entering the recess by the waterproof transparent film. Therefore, deterioration of the magnetic reversible display medium having poor water resistance can be prevented, and the original number of rewrites can be reduced.

Further, in the above configuration, it is possible to propose a configuration in which the waterproof transparent film is disposed such that the surface thereof is depressed with respect to the recess forming surface of the exterior body. As a result, the surface of the waterproof transparent film is less likely to be scratched, and the visibility of information displayed on the information display medium does not decrease.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. In the drawings, reference numeral 1 denotes an information medium according to the present invention. The information medium 1 is configured as a coin-shaped data carrier, and an IC circuit is built in a disk-shaped exterior body 2. Although not shown, the IC circuit includes a storage element for storing data in a rewritable manner, and includes an IC chip for executing a predetermined sequence, a loop coil for transmission / reception and power reception, and the like.
Data can be transmitted and received without contact using electromagnetic waves.

The exterior body 2 is made of PPS, PBT, PET
The disk-shaped exterior body 2 has a circular recess 3 formed on at least one surface of the front and back surfaces of the disk-shaped exterior body 2. In the recess 3, a sheet-shaped information display medium 4 is fixed on an inner bottom surface of the recess 3 by an adhesive. In the recess 3, a supporting step edge 5 is formed at a height position substantially coincident with the upper surface of the information display medium 4 by expanding an upper peripheral edge of the recess 3 to the side. A waterproof transparent film 6 that covers the information display medium 4 by sealing the recess 3 is attached to the supporting step edge 5 with an adhesive.

The waterproof transparent film 6 is preferably a synthetic resin film having excellent surface lubricity, such as polyester, polycarbonate and PET, which is resistant to scratches and which is also excellent in chemical resistance, and has a thickness of about 30 to 100 μm. Can be suitably used. In addition, the waterproof transparent film 6 is appropriately colored as long as it has transparency in which information such as characters displayed on the printing surface of the information display medium 4 can be visually recognized, in addition to the colorless transparent film. Can also be used. Further, the waterproof transparent film 6 may be attached to the supporting step 5 only at the peripheral portion, or may be attached to the entire back surface over the supporting step 5 and the entire upper surface of the information display medium 4. You may do so. Here, when the entire back surface is adhered, there is an advantage that it can be prevented from floating from the information display medium 4.

The depth from the recess forming surface 7 of the exterior body 2 to the supporting step edge 5 is set so as to be larger than the thickness of the waterproof transparent film 6. Surface 8 has a positional relationship to be depressed with respect to the recess forming surface 7.

The information display medium 4 is made of a magnetic reversible display medium. On the display surface of the information display medium 4, visible information based on data stored in the storage element is reversibly rewritten and displayed. .

This magnetic reversible display medium has a recording layer in which a number of microcapsules containing a liquid and a magnetic powder floating in the liquid are coated on a base film together with a binder, and generates a magnetic field. A perpendicular (or horizontal) magnetic field is partially applied to the recording layer by the writing device to vertically or horizontally move the magnetic powder in the microcapsule.
The characters are drawn in accordance with the difference in the brightness of the reflected light, so that visible information can be written / erased in a non-contact manner. Further, since the printing density is high, clear information can be displayed.

In this configuration, a waterproof transparent film 6 that seals the recess 3 and covers the information display medium 4 is provided on the supporting step edge 5 formed by expanding the upper peripheral edge of the recess 3 to the side. By sticking, the waterproof transparent film 6 can prevent water from entering the recess 3. Since water does not enter into the recesses 3 as described above, the deterioration of the water-resistant magnetic reversible display medium used as the information display medium 4 is prevented, and the original number of rewrites can be digested without any trouble. Can be.

Further, the printing surface of the information display medium 4 can be protected by the waterproof transparent film 6, and the waterproof transparent film 6 is adhered to the supporting step 5 to provide the waterproof transparent film 6. The film 6 does not protrude from the outer surface of the exterior body 2, thereby preventing peeling of the waterproof transparent film 6 due to the end portion being caught on something.

Further, since the waterproof transparent film 6 is disposed so that its surface 8 is depressed with respect to the recess forming surface 7 of the exterior body 2, the waterproof transparent film 6 is provided. Is less likely to be abraded on the surface 8 of the information display medium 4 and the visibility of information displayed on the information display medium 4 can be prevented from lowering.

In the above embodiment, a coin-shaped data carrier is exemplified as the information medium 1.
May be a contact type or non-contact type IC card in which the exterior body 2 is formed in a rectangular shape, and may be an information medium including a general magnetic card having no storage element such as an IC chip. The present invention can be applied.

[0022]

According to the present invention, as described above, the information display medium 4 for reversibly rewriting and displaying visible information is provided in the recess 3 formed on at least one of the front and back surfaces of the exterior body 2. In the information medium 1 to be formed, a supporting step edge 5 is formed by expanding an upper peripheral edge of the recess 3 to the side, and the recess 3 is sealed to the supporting step edge 5 to cover the information display medium 4. Since the transparent transparent film 6 is adhered, the waterproof transparent film 6 can prevent water from entering the recess 3 and protect the printing surface of the information display medium 4. it can. Furthermore, since the waterproof transparent film 6 is adhered to the supporting step edge 5, the waterproof transparent film 6 does not protrude from the outer surface 8 of the exterior body 2, thereby,
It is possible to prevent the waterproof transparent film 6 from peeling off due to the edge being caught on something.

The present invention also provides a storage element for storing data in a rewritable manner in the exterior body 2, and a recess 3 formed on at least one of the front and back surfaces of the exterior body 2. In the information medium 1 on which the information display medium 4 for displaying and reversibly rewriting the visible information based on the data stored in the storage element is provided, the upper peripheral edge of the recess 3 is laterally expanded and supported. Since the stepped edge 5 is formed and the recess 3 is sealed in the supporting stepped edge 5 and the waterproof transparent film 6 covering the information display medium 4 is adhered, the information medium 1 can be used as an IC card or coin-shaped. An information medium 1 such as a data carrier can be used. In such an information medium 1 as well, the waterproof transparent film 6 can prevent water from entering the recess 3 as described above. Information display medium 4
Can be protected, and the waterproof transparent film 6 can be prevented from peeling off due to the edge being caught on something.

Further, in the above configuration, the information display medium 4 includes a recording layer in which a number of microcapsules containing a liquid and a magnetic powder floating in the liquid are coated on a base film together with a binder. By using such a magnetic reversible display medium, clear information can be displayed, and as described above, water can be prevented from entering the recess 3 by the waterproof transparent film 6, so that the waterproof Deterioration of the magnetic reversible display medium, which is inferior, is prevented, and the original number of rewrites can be reduced.

Further, by disposing the waterproof transparent film 6 such that its surface 8 is depressed with respect to the recess forming surface 7 of the exterior body 2, the surface of the waterproof transparent film 6 is formed. 8 is less likely to be scratched, and has an excellent effect that the visibility of information displayed on the information display medium 4 can be prevented from lowering.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view showing an embodiment of an information medium according to the present invention.

FIG. 2 is a plan view of the information medium according to the first embodiment.

FIG. 3 is a partially cutaway front view showing a conventional configuration.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 information medium 2 exterior body 3 recess 4 information display medium 5 supporting step 6 waterproof transparent film 7 recess forming surface 8 surface

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) G11B 5/80 G06K 19/00 F 23/40 K

Claims (4)

[Claims] 1. An information medium in which an information display medium for reversibly rewriting and displaying visible information is provided in a recess formed on at least one surface of the front and rear surfaces of an exterior body, wherein an upper peripheral edge of the recess is provided. An information medium, characterized in that a supporting step edge is formed by expanding laterally, and a waterproof transparent film for covering an information display medium is adhered to the supporting step edge by sealing a recess. 2. An exterior body comprising a storage element for storing data in a rewritable manner, and a recess formed on at least one of the front and back surfaces of the exterior body based on the data stored in the storage element. An information display medium on which the visible information is reversibly rewritten and displayed, wherein an upper peripheral edge of the recess is expanded laterally to form a supporting step edge; An information medium characterized in that a waterproof transparent film covering the information display medium is adhered by sealing the place. 3. A magnetic reversible display medium comprising: a recording layer in which a plurality of microcapsules containing a liquid and a magnetic powder suspended in the liquid are coated on a base film together with a binder. 3. The information medium according to claim 1 or claim 2, wherein 4. The waterproof transparent film according to claim 1, wherein the transparent transparent film is disposed so that the surface thereof is depressed with respect to the recess forming surface of the exterior body. Information media described.