WO2001088910A1

WO2001088910A1 - A composite smart card optical disk and its manufacturing methods

Info

Publication number: WO2001088910A1
Application number: PCT/CN2000/000105
Authority: WO
Inventors: Fai Man Siu
Original assignee: Goldsense Laser Av Production Limited
Priority date: 2000-05-09
Filing date: 2000-05-09
Publication date: 2001-11-22
Also published as: AU4533600A

Abstract

A composite smart card optical disk is characterized in that it includes first substrate which has a central hole penetrated through the first surface and the second surface of it and has a concave formed toward the second surface direction around the central hole on the first surface; at least one circuit element for providing smart card function, which arranged in the area of the first substrate except for the concave area; and an optical disk fixed in the concave, the central hole of said optical disk is aligned with the central hole of the first substrate and the laser incident surface of said optical disk is exposed to the first surface of the first substrate.

Description

Composite intelligent optical disc card and manufacturing method thereof

The present invention relates to a smart card and an optical disc recording medium, and more particularly to a composite smart optical disc card and a method for manufacturing the composite smart optical disc card, which are a combination of a smart card and an optical disc recording medium. Background technique

Smart cards are similar in shape and size to credit cards. Technically, smart cards can be divided into chip cards and contactless cards. An electronic microcontroller is embedded in the chip card to allow storage of more important data, and it can shield the storage area and make it inaccessible to achieve the best security performance. The chip card can be used as a credit card, a mobile phone card, a parking card, a key card, an electronic shopping card, and the like. Contactless card is a new type of chip card. Data is transmitted between the contactless card and external circuits by radio frequency. Contactless cards can be used as public transportation cards, access control cards, etc.

The optical disc is mainly used for storing sound, video and data. Generally, it has a circular size with an outer diameter of 120 亳 m or 80 亳 m. There are two main types of optical discs, namely CD discs (small discs) and DVD discs (digital versatile discs).

CD discs can be divided into CD-DA, CD-L, CD-Photo, CD-G, CD-ROM, CD-ROM XA, VCD, CD-R, CD-RW and other formats according to various functions and recording formats. . DVD discs can also be divided into DVD-Video (video DVD), DVD-Audio (audio DVD), DVD-ROM, DVD-R DVD-RW, DVD-RAM and other formats.

Conventional optical discs have such a layered structure, and the bottommost layer is a polycarbonate substrate, on which are a data recording layer, a metal thin film layer, and a varnish layer. This optical disc is manufactured by the following process. First, a circular substrate is made; then the circular substrate is pressed with a pre-made data-storing die, and the pits representing the data are pressed on the surface of the substrate; then, the surface of the pressed pitted substrate is plated With a thin layer of metal Film to reflect the laser beam; finally, in order to protect the metal film and prevent oxidation, a layer of varnish is coated on the surface of the metal film and hardened with ultraviolet light.

As mentioned above, smart cards and optical discs are two very different products. Combining smart cards with optical discs will result in a very novel product that will have both the functions of a smart card and an optical disc. Due to different structures of smart cards and optical discs and different manufacturing processes, how to combine smart cards and optical discs is a technical problem that needs to be solved in the prior art. Summary of the Invention

In order to solve the above problems, a first object of the present invention is to provide a composite smart optical disc card, which has both the functions of a conventional smart card and the functions of a conventional optical disc.

A second object of the present invention is to provide a method for manufacturing the above-mentioned composite smart optical disc card. According to this method, an optical disc can be produced on a conventional smart card, so that the produced product has both the functions of the conventional smart card and the function of the conventional optical disc. .

To achieve the above first object, the present invention provides a composite smart optical disc card, which is characterized in that:

The first substrate has a central hole penetrating through the first surface and the second surface opposite to each other, and has a groove recessed toward the second surface around the central hole on the first surface;

At least one circuit element for providing a smart card function is provided in an area other than the groove in the first substrate; and

An optical disc is fixed in the groove, a central hole of the optical disc coincides with a central hole of the first substrate, and a laser incident surface of the optical disc is exposed on the first surface of the first substrate.

To achieve the above second object, the present invention provides a method for manufacturing a composite smart optical disc card, which is characterized by including the following steps: (1) A first substrate is made so that it has a central hole penetrating the first surface and the second surface thereof in place, and on the first surface, there is a recess on the first surface that is recessed toward the second surface and has A groove of a predetermined diameter;

(2) arranging at least one circuit element for providing a smart card function in an area other than the groove in the first substrate;

(3) making an optical disc having a predetermined diameter so that it has a center hole and a laser incident surface; and

(4) The optical disc is fixed in the groove of the first substrate, so that the central hole of the optical disc coincides with the central hole of the first substrate, and the laser incident surface of the optical disc is exposed to the first substrate. First surface.

In the above method, the execution order of steps (1) to ( ⁴ ) may be (1), ( ³ ), ( ² ), (4), or (1), (3), (4), (2) ), (3), (1), (2), (4), or (3), (1), (4), (2).

The composite smart optical disc card of the present invention can be directly read by a conventional smart card reader because it has a circuit of a conventional smart card, and realizes all the functions of a conventional smart card.

In addition, in the optical disc contained in the composite smart optical disc card of the present invention, audio or video data in a CD or DVD format or a computer program may be recorded in advance. The composite smart optical disc card of the present invention can be directly loaded into a conventional optical disc player or optical disc drive to read recorded audio, video data, or execute a recorded computer program.

Therefore, the composite smart optical disc card of the present invention has a very wide range of uses. For example, it can be used as a public transport stored value card, bank credit card, electronic money stored value card, security card, identity card, ROM card for fast Internet access, and so on.

In addition, according to the different needs and preferences of different users, the composite smart optical disc card of the present invention can be made into different shapes and different colors and patterns without losing its substantial function. Overview of the drawings

The above and other features and advantages of the present invention will be more apparent through a detailed description of the best embodiment of the present invention in conjunction with the accompanying drawings.

FIG. 1 is a sectional view of a first embodiment of the present invention;

2 is a sectional view of a second embodiment of the present invention;

3 is a sectional view of a third embodiment of the present invention;

FIG. 4 is a cross-sectional view showing a first shape of a second substrate;

5 is a cross-sectional view showing a second shape of the first substrate;

FIG. 6 is a deformation of the first substrate shown in FIG. 4;

FIG. 7 is a modification of the first substrate shown in FIG. 5. FIG. Best Mode of the Invention

The preferred embodiments of the present invention are described in detail below.

Fig. 1 is a sectional view of a first embodiment of the present invention. Reference numeral 1 is a central hole, reference numeral 2 is a first substrate, reference numeral 3 is an optical disc (CD or DVD), reference numeral 4 is a smart card chip, and reference numeral 5 is a fixing device. '

As shown in FIG. 1, the smart optical disc card of the present invention includes a first substrate 2 having a central hole 1 penetrating a first surface (such as a lower surface) and a second surface (such as an upper surface) opposite to each other, Around the center hole 1 on the first surface, there is a groove (the position where the optical disc 3 is located) recessed in the direction of the second surface.

In the first substrate 1, at least one circuit element for providing a smart card function is provided. This circuit element may be, for example, a smart card chip 4. When the composite smart optical disc card of the present invention is connected with a conventional smart card reader, the smart card chip 4 will start to work. FIG. 1 illustrates that the smart card chip 4 is fixed to and exposed on the second surface (the upper surface in the illustrated example) of the first substrate 2. The composite smart disc card thus constructed has the same functions as a conventional chip card.

Another solution is at least one circuit element to be used to provide smart card functions The components are embedded in the first substrate 2. These circuit elements can exchange data with a smart card reader (not shown) near the second surface (the upper surface in the example shown) of the first substrate 2 by radio frequency. The composite smart disc card thus constructed has the same function as a conventional non-contact sheet card.

In the four grooves of the first substrate 2, the optical disc 3 is fixed in the groove by using an adhesive technique or an ultrasonic welding technique. The center hole of the optical disc 3 coincides with the center hole 1 of the first substrate 2. The laser light incident surface of the optical disc 3 is exposed on the first surface of the first substrate 2 (the sacrificial surface in the illustrated example).

The first substrate 2 may have any two-dimensional shape. For example, the first substrate 2 may be a circle, a rectangle, an ellipse, a heart, a triangle, or the like, or an irregular figure, depending on the preferences and needs of the user.

The recording format of the optical disc 3 can conform to any specifications of the optical disc recording format in the prior art, and can be read normally in a conventional optical disc player or optical disc drive. Disc 3 can be pre-recorded with audio data, video data, or computer programs. Of course, the recording format of Disc 3 can also conform to any other specifications regarding the recording format of discs that may appear in the future. The different recording formats adopted by the optical disc 3 do not constitute a limitation on the present invention. '

The diameter of the center hole 1 is generally 15 mm, the outer diameter of the first substrate 2 is generally 48 mm to 120 mm, and the minimum diameter of the optical disc 3 is 48 mm. The various sizes given here are only to enable the composite smart disc card to be used normally in a conventional disc player or disc drive. These dimensions do not constitute a limitation on the actual size of the center hole 1, the first substrate 2 and the optical disc 3.

In order to be able to put the composite smart disc card into a conventional disc player or disc drive, the distance between any point on the outer edge of the first substrate 2 and the center of the center hole 1 must be less than or equal to 60 mm.

In order for the irregularly shaped composite smart optical disc card to be stably rotated in a conventional optical disc player or optical disc drive, a first hole (lower surface in the illustrated example) on the first surface of the first substrate 2 needs to be spaced from the center The center of the circle of 1 is about 40mm, Set the fixing device 5.

The fixing device 5 may be at least two protrusions formed on the first substrate 2 (if the diameter of the optical disc is greater than 80 mm, or on the optical disc 3), or may be adhered to the first substrate 2. At least two rubber edges, or a ring concentric with the center hole 1. Here, the shape and number of the protrusions or the rubber edges do not limit the present invention. The protrusions may be formed integrally with the first substrate 2 when the first substrate 2 is manufactured, or may be formed separately.

As an equivalent method, the fixing device 5 may also be a curved edge having a radius of about 40 mm in a first surface of the first substrate 2 at a diameter of 80 mm, so that it is within the curved edge. The first substrate has a larger thickness, and the first substrate outside the curved edge has a smaller thickness (as shown in Figs. 6 and 7).

Conventional disc players have the ability to read small discs with an outer diameter of 80 mm, because the tray of the disc player has a specific recessed track at a diameter of 80 mm. When the composite intelligent optical disc card provided with the fixing device 5 shown in FIG. 1 is mounted on a tray of a conventional optical disc player, the fixing device 5 will be engaged into a recessed track with a diameter of 80 mm in the tray. Thus, even if the composite smart disc card has an irregular shape, it can stably rotate in the disc player.

Fig. 2 is a sectional view of a second embodiment of the present invention. Each symbol in the figure has the same meaning as the corresponding symbol in FIG. 1. The difference is that reference numeral 6 is a second substrate. The second substrate 6 is connected to the first substrate 2 on the second surface (the upper surface is exemplified in the figure) of the first substrate, and has a central hole that coincides with the central hole of the first substrate 2. In the second substrate 6, a circuit element for providing a smart card function is embedded. The composite smart disc card thus constructed has the same functions as a conventional contactless card.

3 is a cross-sectional view of a third embodiment of the present invention; each reference numeral in the figure has the same meaning as the corresponding reference numerals in FIG. 1 and FIG. 2. As shown in FIG. 3, the smart card chip 4 is fixed and exposed on a surface (illustrated as an upper surface) of the second substrate 6 that is not connected to the first substrate 2. Similar to FIG. 2, at the same time, other circuit elements for providing a smart card function may be embedded in the second substrate 6 so that It exchanges data with a smart card reader (not shown) near the surface of the second substrate 6, which is not connected to the first substrate 2. Therefore, the composite smart optical disc card shown in FIG. 3 can have both the function of a conventional chip card and the function of a conventional contactless card.

Fig. 4 is a sectional view showing a first shape of the first substrate. As shown in FIG. 4, the first substrate 2 has a groove around the center hole 1 on the second surface (the lower surface in the example shown in the figure). In order to be able to use the composite smart optical disc card of the present invention in a conventional optical disc player or optical disc drive, the first substrate 2 can be manufactured in the following dimensions.

The center hole of the first substrate 2 has a diameter of 15 mm. The depth of the grooves on the second surface (bottom surface shown) of the first substrate 2 is 0.6 to 1.5 mm, and the minimum diameter of the grooves is 48 mm, so as to accommodate the thickness of 0.6 to 1.5 mm and the minimum diameter of 48. Omi of the disc 3. The thickness of other parts of the first substrate 2 is 1.0 to 3.0 mm. The fixing device 5 is about 40 mm from the center of the center hole, that is, the fixing device 5 is located on a track with a diameter of 80 mm.

Fig. 5 is a cross-sectional view showing a second shape of the first substrate. Different from FIG. 4, the groove is recessed all the way to the second surface, thereby forming a through hole penetrating the first surface and the second surface. The depth of the through hole (that is, the thickness of the first substrate 2) is 0.6 to 1.5 mm, and the diameter of the through hole is minimum 48 mm to accommodate the optical disk 3 having a thickness of 0.6 to 1.5 mm and a minimum diameter of 48 mm. The fixing device 5 is about 40 mm from the center of the center hole circle, that is, the fixing device 5 is located on a track with a diameter of 80 mm.

Fig. 6 is a modification of the first substrate shown in Fig. 4, which differs from Fig. 4 only in the arrangement of the fixing device 5. Fig. 7 is a modification of the first substrate shown in Fig. 5, which differs from Fig. 5 only in the arrangement of the fixing device 5. The fixing device 5 may be a curved edge having a radius of about 40 mm in a first surface of the first substrate 2 at a diameter of 80 mm, so that the first substrate within the curved edge has a larger diameter. And the first substrate outside the curved edge has a smaller thickness. In FIG. 6, the curved edge is recessed into the first substrate by 0.6 to 1.5 mm, and in FIG. 7, the curved edge is recessed into the first substrate by 0.5 to 0.8 mm.

The method of manufacturing a composite smart optical disc card is detailed below. This method mainly involves The following four steps:

(1) Make the first substrate 2 so that it has a central hole 1 penetrating the first surface and the second surface thereof in place, and have a recess on the first surface toward the second surface around the central hole 1 A groove having a predetermined diameter;

(2) placing at least one circuit element (for example, a smart card chip 4) for providing a smart card function in an area other than the four slots in the first substrate 2;

(3) making an optical disc 3 having a predetermined diameter so that it has a center hole and a laser incident surface; and

(4) Fix the optical disc 3 into the groove of the first substrate 2 so that the central hole of the optical disc 3 coincides with the central hole 1 of the first substrate 2 and the laser incident surface of the optical disc is exposed to the first substrate 2 First surface.

In the above method, the execution order of each step may be any one of the following orders:

(1), (2), (3), (4);

(1), (3), (2), (4);

(1), (3), (4), (2);

(3), (1), (2), (4);

(3), (1), (4), (2).

For the reasons described above, in step (1), the outer edge of the first substrate 2 may be configured as a circle, a rectangle, or any irregular pattern.

In order to be able to put the composite smart disc card into a conventional disc player or disc drive, in step (1), the outer edge of the first substrate 2 is configured as a distance between any point thereon and the center of the center hole 1 Less than or equal to 60 mm.

In order to enable the irregularly shaped composite smart optical disc card to stably rotate in a conventional optical disc player or optical disc drive, the method of the present invention further includes the following steps:

On the first surface of the first substrate 2 at a distance of about ⁴⁰ from the center of the circle of the center hole 1 At the height of 5 meters, a fixing device 5 is provided.

The fixing device 5 may be at least two protrusions. For example, it may be formed integrally with the first substrate in step (1) by using an injection molding technique.

The fixing device 5 may also be at least two rubber edges bonded to the first substrate 2 or a ring concentric with the center hole 1.

The fixing device 5 is a curved edge recessed into the first substrate and having a radius of about 40 mm. In the above step (2), at least one circuit element (for example, the smart card chip 4) is fixed to and exposed to the second surface of the first substrate 2. The composite smart disc card thus constructed has the same functions as a conventional chip card.

Another solution is that, in step (2), at least one circuit element is embedded in the first substrate 2, so that the embedded circuit element is read by a radio frequency with a smart card near the second surface of the first substrate 2. The card exchanges data. The composite smart disc card thus constructed has the same functions as a conventional non-contact sheet card.

The above method may further include the following steps:

Making a second substrate 6 with a central hole, and connecting it to the second surface of the first substrate 2 so that the central hole coincides with the central hole 1 of the first substrate;

In the above step (2), at least one circuit element is placed in the second substrate 6.

As described above, in the step (1), the groove in the first substrate 2 may also be formed as a through hole penetrating the first surface and the second surface thereof.

In step (2), at least one circuit element (for example, a smart card chip 4) may be fixed and exposed on a surface of the second substrate 6 that is not connected to the first substrate 2.

In step (2), at least one circuit element may be embedded in the second substrate 6, so that the at least one circuit element is radio-frequencyly connected to a surface of the second substrate that is not connected to the first substrate. Smart card readers exchange data.

In the above method, the predetermined diameter involved is at least 48 mm, and in step (3), the thickness of the optical disc 3 is formed in a range of 0.6 mm to 1.5 mm. Although the best embodiment of the present invention has been described in detail above with reference to the accompanying drawings, for those skilled in the art, various modifications and changes can be made without departing from the scope and essence of the present invention. Accordingly, the scope of the invention is limited only by the claims.

Claims

Rights request

1. A composite smart optical disc card, comprising:

2. The composite smart optical disc card according to claim 1, characterized in that the outer edge of the first substrate forms a circle.

3. The composite smart optical disc card according to claim 1, wherein the outer edge of the first substrate forms a rectangle.

4. The composite smart optical disc card according to claim 1, wherein the outer edge of the first substrate forms an irregular pattern.

5. The composite smart optical disc card according to any one of claims 1 to 4, characterized in that the distance between any point on the outer edge of the first substrate and the center of the center hole is less than or equal to 60 mm.

6. The composite smart optical disc card according to claim 5, characterized in that the first surface is provided with a fixing device at a distance of about 40 mm from the center of the circle of the center hole.

7. The composite smart optical disc card according to claim 6, wherein the fixing means is at least two protrusions.

8. The composite smart optical disc card according to claim 7, wherein said at least two protrusions are formed integrally with the first substrate using an injection molding technique.

9. The composite smart optical disc card according to claim 6, characterized in that the fixing device is at least two rubber edges adhered to the first substrate.

10. The composite smart optical disc card according to claim 6, wherein the fixing means is a ring concentric with the center hole.

11. The composite smart optical disc card according to claim 6, wherein the fixing means is a ϋ-shaped edge recessed in the first substrate with a radius of about 40 亳 m.

12. The composite smart optical disc card according to claim 1, wherein said at least one circuit element is fixed to and exposed to a second surface of the first substrate.

13. The composite smart optical disc card according to claim 1, characterized in that said at least one circuit element is embedded in the first substrate, and can be used in a radio frequency manner with a smart card reader near the second surface of the first substrate. Exchange data.

14. The composite smart optical disc card according to claim 1, further comprising: a second substrate, which is connected to the first substrate on the second surface of the first substrate, and has an anastomosis with a central hole of the first substrate. The center hole;

The at least one circuit element is disposed in the second substrate.

15. The composite smart optical disc card according to claim 14, characterized in that the groove in the first substrate is recessed toward the second surface until reaching the second surface, thereby forming a through hole penetrating the first surface and the second surface. .

16. A composite smart optical disc card according to claim 14 or 15, characterized in that said at least one circuit element is fixed and exposed on a surface of the second substrate which is not connected to the first substrate.

17. The composite smart optical disc card according to claim 14 or 15, characterized in that the at least one circuit element is embedded in the second substrate, and can be radio-frequencyly connected to the second substrate, not to the first substrate. The smart card reader on the surface of the substrate is connected to exchange data.

18. The composite smart optical disc card according to any one of claims 1, 14, and 15, characterized in that the minimum diameter of the optical disc is 48 mm.

19. The composite smart optical disc card according to any one of claims 1, 14, and 15, characterized in that the thickness of the optical disc is in a range of 0.6 mm to 1.5 mm.

20. —A method for manufacturing a composite smart disc card, which is characterized by including the following steps Step:

(1) A first substrate is made so that it has a central hole penetrating the first surface and the second surface thereof in place, and on the first surface, there is a recess on the first surface that is recessed toward the second surface and has A predetermined diameter ^ groove;

(4) The optical disc is fixed in the groove of the first substrate so that the central hole of the optical disc coincides with the central hole of the first substrate, and the laser incident surface of the optical disc is exposed to the first substrate. First surface.

21. The method according to claim 20, characterized in that the execution order of the steps (1) to (4) is (1), (3), (2), (4).

22. The method according to claim 20, characterized in that the execution order of the steps (1) to (4) is (1), (3), (4), (2).

23. The method according to claim 20, characterized in that the execution order of the steps (1) to (4) is (3), (1), (2), (4).

24. The method according to claim 20, characterized in that the execution order of the steps (1) to (4) is (3), (1), (4), (2).

The method according to any one of claims 20 to 24, characterized in that in step (1), the outer edge of the first substrate is formed into a circle.

The method according to any one of claims 20 to 24, wherein in step (1), the outer edge of the first substrate is formed into a rectangle.

27. The method according to any one of claims 20 to 24, wherein the outer edge of the first substrate is formed as an irregular pattern in the step (1).

28. The method according to any one of claims 20 to 24, wherein in step (1), the outer edge of the first substrate is configured such that the distance between any point on the first substrate and the center of the center hole is less than or It is equal to 60 mm.

29. The method according to claim 28, further comprising the step of: providing a fixing device on the first surface of the first substrate at a distance of about 40 mm from the center of the center hole.

30. The method according to claim 29, wherein the fixing means are at least two protrusions.

31. The method according to claim 30, wherein said at least two protrusions are formed integrally with the first substrate using an injection molding technique in said step (1).

32. A method according to claim 29, characterized in that the fixing means are at least two glue edges bonded to the first substrate.

33. The method according to claim 29, wherein the fixing means is a ring concentric with the central hole.

34. The method according to claim 29, wherein the fixing means is a curved edge having a radius of about 40 亳 m, which is recessed into the first substrate.

35. The method according to any one of claims 21 to 25, characterized in that in the step (2), the at least one circuit element is fixed to and exposed to the second surface of the first substrate.

36. The method according to any one of claims 20 to 24, wherein in said step (2), said at least one circuit element is embedded in a first substrate such that said at least one circuit element is Radio frequency mode exchanges data with a smart card reader near the second surface of the first substrate.

37. The method according to any one of claims 20 to 24, further comprising the following steps:

Making a second substrate with a central hole and connecting it to the second surface of the first substrate so that the central hole coincides with the central hole of the first substrate;

In the step (2), the at least one circuit element is disposed in a second substrate.

38. The method according to claim 37, wherein in the step (1), the groove in the first substrate is formed as a through hole penetrating the first surface and the second surface thereof.

39. The method according to claim 37 or 38, characterized in that in the step (2), the at least one circuit element is fixed to and exposed to a surface of the second substrate that is not connected to the first substrate on.

40. The method according to claim 37 or 39, characterized in that in said step (2), said at least one circuit element is embedded in a second substrate so that said at least one circuit element is radio-frequency Data is exchanged with a smart card reader near a surface of the second substrate that is not connected to the first substrate.

41. The method according to any one of claims 20 to 24, 37 to 39, characterized in that said predetermined diameter is at least 48 mm.

42. The method according to any one of claims 20 to 24, 37 to 39, characterized in that in step (3), the thickness of the optical disk is formed in a range of 0.6 to 1.5 mm.