KR101257640B1 - Eco-friendly dual smart card - Google Patents

Abstract

PURPOSE: An environmentally-friendly dual smart card is provided to prevent environmentally harmful substances and enable reuse thereof by including a sheet, which includes a card with Korean paper, and forming the sheet into a shape laminating a copperplate film on a Korean paper material. CONSTITUTION: A front printing layer is laminated on the bottom of a front layer to include characters and numbers and is formed of Korean paper. A laminating core layer(40) includes a first RFID(Radio Frequency ID) tag(110) for a low frequency band and a second RFID tag(120) for a high frequency band, is laminated on the bottom of the front printing layer, and is formed of the Korean paper. The first RFID tag includes a combi chip(100), an RFID memory board(102), an RFID controller board(104), a first RFID tag chip for a low frequency band, and a first RFID antenna for a low frequency band. The second RFID tag includes a second RFID tag chip for a high frequency band and a second RFID antenna for a high frequency band.

Description

Eco-friendly dual smart card {Eco-friendly dual smart card}

The present invention relates to an eco-friendly dual smart card. More specifically, at least one of the sheets constituting the card is made of Hanji material and the sheet is formed in a form of laminating a copper film on the Hanji fabric, so that it is recyclable, does not emit environmentally harmful substances, has excellent preservation and air well. It is suitable for carrying in wallet and can reduce the production cost. Also, it is possible to connect high frequency band RFID antenna and low frequency band RFID antenna to each other, or high frequency band RFID tag chip and low frequency band RFID tag chip by COB method. The present invention relates to an eco-friendly dual smart card capable of adaptively responding to various frequency bands according to a user's request.

Currently, smart cards are widely used in various fields such as communication, finance, and transportation. Smart cards can be divided into contact, contactless, and combined, depending on how the data is read.

In particular, an RFID card has an advantage of rapidly processing a large amount of information wirelessly compared to a barcode system.

When the card holder approaches the RFID card within the antenna box recognition distance of the terminal, the terminal performs information processing within a short time, so that the user does not have to stop and wait. In addition, since the RFID card can be miniaturized like a conventional credit card, it can be carried in a wallet.

However, since a general RFID card is individually provided to have a different radio frequency band according to a use, a user has a inconvenience in having a plurality of RFID cards according to his use purpose, and there is a problem in that the manufacturing cost for each card increases. .

In addition, the general RFID card is inconvenient to receive a new issuance or reissuance of the RFID card if the use area is expanded later, such as additional authentication.

In addition, since a general RFID card is manufactured by printing a metal pattern on a synthetic resin thin film, a large amount of environmental pollutants are discharged upon disposal, and there is a problem that the treatment cost such as incineration increases astronomically.

The present invention has been made to solve the above problems, in particular, it is recyclable and does not emit environmentally harmful substances, it is excellent in preservation and air, suitable for carrying in wallets, etc., as well as reducing the production cost The aim is to provide an eco-friendly dual smart card that can adapt to various frequency bands according to the user's request.

Eco-friendly dual smart card according to the present invention devised to achieve the above object is a combination chip (Combi Chip); An RFID memory board in which data is stored; An RFID controller board electrically connected to the combination chip and the RFID memory board and interlocking the combination chip and the RFID memory board with each other; A low frequency band first RFID tag including a first RFID tag chip for low frequency band and a low frequency band first RFID antenna electrically connected to the first RFID tag chip and disposed along an edge; And a second RFID antenna for a high frequency band, and a second RFID antenna for a high frequency band in which a pair is electrically connected to both sides of the second RFID tag chip, and an end thereof is electrically connected to the first RFID antenna. It characterized in that it comprises a laminate core layer containing a second RFID tag for.

In addition, the eco-friendly dual smart card may have a structure in which a plurality of sheets are laminated including the laminate core layer, and at least one of the sheets including the laminate core layer may be a copper film laminated on a Hanji fabric. .

Also, the third RFID tag chip for high frequency band may be mounted together in a chip on board (COB) structure in the first RFID tag chip.

According to the present invention, at least one of the sheets constituting the card is made of Hanji material, and the sheet is formed in the form of laminating a copper film on the Hanji fabric, so that it is recyclable, does not emit environmentally harmful substances, has excellent preservation and air well. It is suitable for carrying in a wallet, etc., and has an effect of reducing the production cost.

In addition, according to the present invention, by connecting a high frequency band RFID antenna and a low frequency band RFID antenna to each other, or by mounting a high frequency band RFID tag chip and a low frequency band RFID tag chip together in a COB method, various frequency bands according to user's requirements There is an effect that can be adaptive to.

1 is a conceptual diagram illustrating lamination of an eco-friendly dual smart card according to a preferred embodiment of the present invention;
2 is a front view of the laminate core layer of the eco-friendly dual smart card according to a preferred embodiment of the present invention,
3 is a vertical cross-sectional view of the laminate core layer of the eco-friendly dual smart card according to an embodiment of the present invention,
4 is an actual implementation picture of an example in which a first RFID antenna and a second RFID antenna are connected to each other;
5 is a conceptual diagram illustrating an example in which the first RFID tag chip and the third RFID tag chip are mounted together.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to designate the same or similar components throughout the drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. In addition, the preferred embodiments of the present invention will be described below, but it is needless to say that the technical idea of the present invention is not limited thereto and can be variously modified by those skilled in the art.

1 is a conceptual diagram illustrating lamination of an eco-friendly dual smart card according to a preferred embodiment of the present invention.

Eco-friendly dual smart card according to an embodiment of the present invention, referring to Figure 1, the surface layer 10, the front layer (Front Overlay) 20, the front print layer (Front Print Overlay) 30, the laminate core layer (Laminated Core Overlay) 40, Rear Print Overlay (50), and Back Overlay (60).

The surface layer 10 is printed with graphics such as various holograms and photos according to the use, and is formed of a transparent or translucent material.

The front layer 20 is stacked below the surface layer 10 and is formed of a transparent or translucent material.

The front printed layer 30 is stacked below the front layer 20, and various letters, numbers, and the like of the smart card are printed. The front printed layer 30 may be formed of an eco-friendly Hanji material.

The laminate core layer 40 is stacked below the front printed layer 30, and is equipped with a combi chip, an RFID memory board, an RFID controller board, an RFID tag, and the like, which form the core of the present invention. The laminate core layer 40 may be formed of an environmentally friendly Hanji material.

The rear print layer 50 is stacked below the laminate core layer 40, and various graphics, letters, numbers, and the like to be displayed on the rear surface of the smart card are printed. The rear print layer 30 may be formed of an eco-friendly Hanji material.

The back layer 60 is stacked below the rear printed layer 50 and formed of a transparent or translucent material.

As such, the eco-friendly dual smart card according to the preferred embodiment of the present invention uses a paper material that can be recycled as an eco-friendly material and does not discharge environmentally harmful substances. In one example, the sheet of hanji may be produced by the following process, the manufacturing process of the paper is not limited by the following description.

To make Korean paper, it is collected by making paper mulberry. After cutting off the branch of baek-duk, put it in a cauldron, pour water, and boil it for about 10 hours to peel it off.

Next, select the relatively broad and even surface among the cuts, cut the middle and put it in water, soaked enough to remove the husk (black skin) using a knife or the like to make a white.

Boil it in water and boil it. After making buckwheat, make ashes, put the ashes on top of shiru, pour the ashes and pour water, and boil it for 5 ~ 6 hours. Rinse the boiled white buckwheat with clear water for about 10 days and bleach it in the sun (sunlight bleaching).

After removing the epidermis and impurities remaining in the white paper, squeeze out the water, put it on a wide stone board (dock stone), and tap it with a wooden bat (dock bat) until the fiber is loosened in water.

Put it in the bucket with clean water and stir it with enough force, filter the mucus in a sack and mix it again so that the seaweed is mixed well. Repeat the process of dripping to the side.

It is called a grounded paper, stacked on top of one another, and the planks and stones are placed on top to allow the water to drain slowly, and then placed on a compressor to remove moisture completely.

After each piece of paper has been drained and dried, the paper is not completely dried and beaten with a bat to increase the density of the paper and form a fiber (doping).

Dry completely when doping is complete.

Hanji is tough, soft, resilient and has excellent preservation characteristics, making it an ideal material for smart cards used in everyday life. In addition, Hanji is well-aired, so even if you carry it in your wallet or the like, it is less polluted by sweat or waste. In addition, since Hanji is obtained from natural wood, it is easily available and inexpensive.

In the present invention is manufactured in the form of laminating a copper film on a Hanji fabric, the copper plate lamination on the fabric is possible in both sides, both sides can be implemented up to approximately 3 to 5 layers.

2 is a front view of the laminate core layer of the eco-friendly dual smart card according to a preferred embodiment of the present invention, Figure 3 is a vertical cross-sectional view of the laminate core layer of the eco-friendly dual smart card according to a preferred embodiment of the present invention.

Laminate core layer 40 of the eco-friendly dual smart card according to an embodiment of the present invention, with reference to Figures 2 and 3, Combi chip (Combi Chip) 100, RFID memory board 102, RFID controller board 104, a first RFID tag 110, and a second RFID tag 120.

The combi chip 100 is a chip in which an integrated circuit capable of performing functions such as a security module, a screen processing module, a service menu processing, an interface, a screen image, and the like is embedded. For example, the combi chip contains card information of an individual or a corporation, and when reading an eco-friendly dual smart card with a reader, it performs functions such as credit card, transportation card, electronic money, parking lot card, and department store card.

The RFID memory board 102 stores various data. For example, the RFID memory board 102 may include a memory for storing data, an interface for transferring data stored in the memory to the RFID controller board 104, and the like.

The memory of the RFID memory board 102 may be implemented to be detachable, so that the memory may be replaced to adjust the data storage capacity. In this case, the memory may be separated and inserted and connected to the reader to enable data transmission with the user's computer. Through the RFID memory board 102 can meet the memory capacity required by the combi chip 100, it is possible to perform a variety of functions that operate in the combi chip 100. Therefore, even after an eco-friendly dual smart card is issued, additional application services such as education, finance, and medical care may be added.

The RFID controller board 104 plays a control role necessary for data relay between the Combi chip 100 and the RFID memory board 102 by interlocking the Combi chip 100 and the RFID memory board 102 with each other. For example, the RFID controller board 104 is an interface for connecting to the Combi chip 100 and the RFID memory board 102, a controller for controlling the Combi chip 100 and the RFID memory board 102 through an interface. It may include.

The first RFID tag 110 includes a first RFID tag chip 112 and a first RFID antenna 114 for a low frequency band. The first RFID tag 110 may recognize the RFID at a short distance, for example, a distance of several cm. A representative example of the first RFID tag 110 may be an RFID tag that transmits and receives in a frequency band of 13.56 MHz, and may be applied to a traffic card.

Referring to FIG. 2, the first RFID antenna 114 is electrically connected to the first RFID tag chip 112 and is disposed along an edge of the laminate core layer 40.

The second RFID tag 120 includes a second RFID tag chip 122 and a second RFID antenna 124 for a high frequency band. The second RFID tag 120 may recognize the RFID at a long distance, for example, within a few meters. A representative example of the second RFID tag 120 may be an RFID tag that transmits and receives in a 900 MHz frequency band, and may be applied to an attendance management system.

Referring to FIG. 2, a pair of second RFID antennas 124 are electrically connected to both sides of the second RFID tag chip 122 and are disposed at one inner side of the first RFID antenna 114.

3 is a conceptual diagram illustrating an example in which a first RFID antenna and a second RFID antenna are connected to each other.

3, each end of the second RFID antenna 124 is electrically connected to the first RFID antenna 114. The antenna is configured to form a pattern by adjusting the coil and the pitch (thickness) according to each frequency band, in the present invention is implemented by connecting such an antenna as one antenna without disconnection.

Low frequency bands such as 13.56 MHz and high frequency bands such as 900 MHz can cause mutual interference. In view of the above, the present invention applies the resonance current value of the antenna and the reader communication to the antenna design.

RFID is largely divided into Inductive Coupling and Frequency Coupling.

The magnetic field induction method is operated by the electric current generated by generating a strong high frequency in the antenna and the magnetic field generated through the antenna coil of the tag. This method is mainly used in the band of 125kHz, 134kHz, 13.56MHz, etc., and is absorbed by magnetic field or metal.

The frequency method is similar to the radar technology. When the residual wave is sent from the antenna, it is received by the tag and used as the back-scattering power. This method is mainly used in the band of 900MHz, 2.45GHz, etc., and is reflected by metal and absorbed by water.

In the present invention, the antenna of the low frequency band such as 13.56MHz and the antenna of the high frequency band such as 900MHz are electrically connected to each other, but 13.56MHz is operated by the magnetic field induction method and 900MHz is operated by the frequency method, magnetic field, metal, Since the properties for water and the like are different, they can operate without causing mutual interference.

The present invention is constructed by connecting a low frequency antenna and a high frequency antenna without disconnection. This is a basic RFID communication that receives and stores the current of the antenna, and since the chips for each frequency band of mutual current keep a constant current, it is possible to solve the instability of communication due to unstable current by preserving the residual current. There is this. As a general RFID applies a uniform current through a capacitor to an antenna to provide a stable effect of communication, in the present invention, a mutual chip (a chip in which a first RFID tag chip and a third RFID tag chip are mounted together in a COB structure) is used. It will play a role.

4 is an actual implementation picture of an example in which a first RFID antenna and a second RFID antenna are connected to each other. A first RFID tag chip and a first RFID antenna are implemented in the upper portion, a second RFID tag chip and a second RFID antenna are implemented in the center and the lower portion, and the first RFID antenna and the second RFID antenna are connected to each other. can confirm.

5 is a conceptual diagram illustrating an example in which the first RFID tag chip and the third RFID tag chip are mounted together.

Referring to FIG. 5, a third RFID tag chip 132 for another high frequency band may be mounted on the first RFID tag chip 112 for a low frequency band. The first RFID tag chip 112 and the third RFID tag chip 132 may be mounted together in a chip on board (COB) structure. COB is a type of bare chip mounting method, and is a packaging method in which a chip is directly bonded onto a PCB and sealed with resin after wire bonding. The COB method has excellent optical, electrical, and thermal properties, high moisture resistance, and high temperature characteristics by packaging. In addition, the COB method is excellent in power efficiency and excellent in reliability of humidity and temperature, and can be thinner to realize a lighter weight.

The integrated COB chip base of the first RFID tag chip 112 and the third RFID tag chip 132 may be mounted at the position of the first RFID tag chip 112 in FIG. 2. In designing such an integrated COB chip, the difference between the impedance and the coil value of each chip should be fully considered.

Currently, chip manufacturers are distributing a single type of chip. This is to maximize the frequency-specific characteristics of the chip. However, due to the increased functional requirements for chips, various attempts have been made, and mounting them in a single semiconductor is somewhat unreasonable with current technology. 13.56MHz + 900MHz integrated COB chip base of the present invention is the most efficient application method while maintaining the uniqueness of the chip, especially in the manufacturing process can be expected to reduce the cost, such as reducing the process applied to each chip.

It will be apparent to those skilled in the art that various modifications, substitutions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. will be. Accordingly, the embodiments disclosed in the present invention and the accompanying drawings are not intended to limit the technical spirit of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by the embodiments and the accompanying drawings. . The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

10-Surface Layer 20-Front Layer
30-front printed layer 40-laminate core layer
50-Rear Print Layer 60-Back Layer
100-Combi Chip 102-RFID Memory Board
104-RFID Controller Board 110-1st RFID Tag
120-the second RFID tag

Claims (3)

A surface layer on which graphics including holograms and photographs are printed and formed of a transparent or translucent material;
A front layer laminated under the surface layer and formed of a transparent or translucent material;
A front printed layer laminated under the front layer and having letters and numbers printed and made of Hanji material;
Combi chip, RFID memory board for storing data, RFID controller board electrically connected to the combi chip and the RFID memory board to interwork the combi chip and the RFID memory board, the first RFID for low frequency band A first RFID tag for a low frequency band, a first RFID tag for a low frequency band, a second RFID tag chip for a high frequency band, the tag chip being electrically connected to the first RFID tag chip and disposed along an edge. A pair of high frequency bands includes a second RFID tag including a second RFID antenna for a high frequency band, the pair being electrically connected to both sides of a tag chip, and each end of which is electrically connected to the first RFID antenna. A laminate core layer laminated on and formed of a hanji material;
A rear printing layer laminated on the laminate core layer and printed with graphics, letters, and numbers to be displayed on the back surface, and formed of a sheet of hanji material; And
The back layer laminated on the rear printed layer and formed of a transparent or translucent material
/ RTI >
It takes a structure in which a plurality of sheets are laminated including the laminate core layer, at least one of the sheets including the laminate core layer is a copper film laminated on a Hanji fabric,
The first RFID tag chip is an eco-friendly dual smart card, characterized in that the high frequency band third RFID tag chip is mounted together in a chip on board (COB) structure.
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