KR101555335B1 - Near field communication tag for destroying radio frequency function on separating - Google Patents

Abstract

The present invention relates to an NFC tag in which an RF function is broken at the time of separation, and is characterized in that a first adhesive layer and / or a second adhesive layer are provided on one side or both sides of an RF tag sheet having an antenna formed on one side and / The adhesive force of the first adhesive layer and / or the second adhesive layer is partially different from that of the NFC tag, thereby preventing the antenna from being damaged when a sticker such as a printed sheet formed on the uppermost layer of the NFC tag is broken, At the same time, it is possible to easily manufacture the NFC tag used at the same time with low cost, for example, it is possible to clearly confirm whether the social worker visits directly or whether the security guard directly checks the corresponding area, Whether it is authenticity of high quality liquor, whether it is sealed of valuables, and the like.

Description

[0001] The present invention relates to an NFC tag having a radio frequency

The present invention relates to an NFC tag in which an RF function is broken at the time of separation. More particularly, the present invention relates to an NFC tag having a first adhesive layer and / or a second adhesive layer on one side or both sides of an RF tag sheet having an antenna formed on one side and / Or the second adhesive layer, the adhesive force of the first adhesive layer and / or the second adhesive layer may be partially different from each other so that the antenna is broken when a sticker such as a printed sheet formed on the uppermost layer of the NFC tag is separated, To an NFC tag in which the RF function is damaged when detached, which can prevent the theft.

In general, RFID (Radio Frequency Identification) transmits and receives information wirelessly through IC chips and antenna coils installed inside. It is used for transportation cards of subways and buses, personal identification tags, company security access and credit cards. And is also widely used as an RFID tag that can be easily carried on the outside.

The NFC (Near Field Communication) tag is one of RFID (radio tag) technologies and is a non-contact communication technology using a frequency band of 13.56 MHz. Since the communication distance is short, It is a short distance communication technology.

As an example, the prior art related to a system for identifying user information using the NFC tag is disclosed in, for example, Korean Patent Application No. 10-2012-0042171.

As shown in FIG. 1, the related art includes an NFC tag 10 for storing user information for use such as a market, travel information, traffic, access control, lock device, etc. and outputting and updating information stored through NFC And an NFC antenna 20 for transmitting and receiving data, application and hardware control with the NFC tag 10, an NFC antenna 30 for transmitting and collecting an RF signal, an NFC And an NFC tag reader including a SIM 40 to read the NFC tag through the NFC tag reader to identify specific user information.

That is, the conventional technique as described above, for example, stores the NFC tag in an identifiable place, and reads the NFC tag through the tag reader to identify the authenticity of the specific user.

For example, a social worker having an NFC tag reader visits a residential area where the elderly person or the handicapped having a welfare card resides, carries out a service, and then the welfare card of the user is authenticated through the NFC tag reader So that they can check the visit.

Also, security guards guarding a specific place, such as a company's laboratory, can patrol the corresponding area equipped with an NFC tag and authenticate through an NFC tag reader to confirm that the area has been patrolled.

However, in the conventional technology as described above, when a user performing service and expense collects all the NFC tags and cards or separates only a part of the NFC tag performing the authentication function, the NFC tag reader There is a problem that the service and the patrol can be authenticated at a time.

That is, in recent years, collecting and collecting the NFC tags in an integrated manner or separating only a part of the NFC tags has become increasingly intelligent, and there is a demand for a technique for preventing copying and theft of such NFC tags.

Korean Patent Application No. 10-2012-0042171 (Name: Mobile communication system providing user information using NFC card, filed on April 23, 2012)

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide an RF tag sheet having an antenna formed on one side surface and the other side surface to be connected to an IC chip and having a first adhesive layer and a second adhesive layer on both sides thereof, It is possible to prevent the illegal use of the NFC tag by making the adhesive force of the adhesive layer and the second adhesive layer different from each other so that the adhesive bonded to the first adhesive layer is broken when the sticker formed on the uppermost layer of the NFC tag is detached, Lt; / RTI > tags.

It is another object of the present invention to provide an RFID tag having a first adhesive layer on one side of an RF tag sheet having an antenna formed on one side thereof so as to be connected to an IC chip, The RF function is damaged when the sticky formed on the first adhesive layer is separated when the sticky formed on the first adhesive layer is separated.

These and other objects of the present invention will be apparent to those skilled in the art without departing from the scope of the present invention by the appended claims.

In order to accomplish the above object, according to the present invention, there is provided an NFC tag in which an RF function is broken at the time of separation, comprising: a first adhesive layer 110 having one side attached to an object to be bonded 101; A first antenna group 121 connected to the IC chip 125 in a loop shape and a second antenna group 121 connected to the IC chip 125 in a loop shape are bonded to one side of the first adhesive layer 110, An RF tag sheet (120) having an antenna group (122); A second adhesive layer 130 bonded to the other side of the RF tag sheet 120; And a sticker 140 attached to the other side of the second adhesive layer 130. The first adhesive layer 110 and the second adhesive layer 130 attached to one side surface and the other side surface of the RF tag sheet 120 The first adhesive layer 110 adhered to the first antenna group 121 of the RF tag sheet 120 has an adhesive density higher than that of the second adhesive layer 122 adhered to the second antenna group 122 The first antenna group 121 attached to the first adhesive layer 110 is directly attached to the object to be bonded 101 when the NFC tag is partly separated and the second antenna group 121 adhered to the second adhesive layer 110 So that only the second antenna group 122 is separated and broken.

Preferably, the first or second antenna group 121 or 122 includes a first region A and a second region B, and the antenna pattern of the first region A or the second region B, The adhesive force of some of the first and second adhesive layers 110 and 130 is strongly formed and the adhesive strength of the other portions of the first and second adhesive layers 110 and 130 is weak, Only the antenna group of any one of the antenna groups B and B can be separated.

More preferably, the first or second antenna group 121 or 122 has a first pattern (a), a second pattern (b) and a third pattern (c) wound in a loop shape, The adhesive force of some of the first or second adhesive layers 110 and 130 of the area corresponding to the pattern a and the second pattern b is formed to be stronger than the adhesive strength of the area corresponding to the third pattern c, Only one of the first pattern (a), the second pattern (b), and the third pattern (c) can be separated when a part of the NFC tag is separated.

According to the NFC tag in which the RF function is broken during the separation according to the present invention, a first adhesive layer and a second adhesive layer are provided on both sides of an RF tag sheet having an antenna formed on one side surface and the other side surface to be connected to an IC chip, The adhesive force of the adhesive layer and the adhesive strength of the second adhesive layer are made different from each other and the adhesive bonded to the first adhesive layer is broken when the sticker formed on the uppermost layer of the NFC tag is detached.

According to another aspect of the present invention, there is provided an RF tag sheet having an antenna formed on one side thereof so as to be connected to an IC chip, wherein a first adhesive layer is provided on one side of the RF tag sheet, By causing some of the antenna patterns to be damaged, it is possible to easily manufacture an NFC tag that prevents duplication and theft with low cost.

Further, according to the present invention, it is possible to confirm whether or not a social worker visits directly and whether the security guard is directly inspected or not, and also identifies whether or not specific household appliances are separated, authenticity of high quality wine, and whether the valuables are sealed And can be widely applied.

Additional features and advantages of the present invention will become more apparent from the following description.

1 is a view for explaining a user information identification system using an NFC tag according to the related art.
2 is a diagram illustrating a configuration of an NFC tag in which an RF function is broken when a separation according to the present invention is broken;
3 is a view for explaining a state at the time of separating an NFC tag in which an RF function is broken at the time of separation according to the present invention.

Hereinafter, an NFC tag in which an RF function is broken at the time of separation according to embodiments of the present invention will be described in detail with reference to FIG. 2 and FIG.

Prior to the detailed description of the present invention, the same or corresponding components in the drawings are denoted by the same reference numerals, and if a detailed description of related known configurations or functions is deemed to blur the gist of the present invention, Is omitted.

Also, in the present specification, the following embodiments and embodiments are to be considered as being illustrative and not restrictive, and the invention is not to be limited to the details given herein but is to be accorded with the scope of the appended claims and their equivalents, It can be changed to another embodiment.

FIG. 2 is a view for explaining a configuration of an NFC tag in which an RF function is broken when a separation according to a preferred embodiment of the present invention is broken down. FIG. 3 is a cross- Fig.

2, the NFC tag in which the RF function is broken during the separation according to the present invention includes a first adhesive layer 110, an RF tag sheet 120, a second adhesive layer 130, and a sticker 140 do.

Specifically, the first adhesive layer 110 has one side attached to an object to be bonded 101 such as a wall surface to which an NFC tag is attached, wood and glass, and the other side is attached to the RF tag sheet 120 As the double-sided adhesive layer to be attached to one side surface, for example, a conductive paste, a hot melt film, a resin type hot melt solution, a poly adhesive and an acrylic ester adhesive may be used.

The RF tag sheet 120 includes an information recording IC chip 125 provided at a predetermined position and a first antenna group 121 and a second antenna group 121 on one side and the other side of the IC chip 125. [ 122 are connected to each other in a loop shape to exchange information with an NFC tag reader (not shown). One side of the RF tag sheet 120 is bonded to the other side of the first adhesive layer 110 .

The second adhesive layer 130 is a double-sided adhesive layer having one side bonded to the other side of the RF tag sheet 120 and the other side attached to one side of the sticker 140, , A resin type hot melt liquid, a poly adhesive, and an acrylate ester adhesive.

The sticker 140 is a sheet to which one side is attached to the other side of the second adhesive layer 130 and a logo and company name suitable for the use of the NFC tag are printed on the other side. Are stacked and bonded.

At this time, the first adhesive layer 110 and the second adhesive layer 130 provided on one side surface and the other side surface of the RF tag sheet 120 are connected to the first antenna 110 formed on one side surface and the other side surface of the RF tag sheet 120, The first adhesive layer 110 adhered to the first antenna group 121 is adhered to the group 121 and the second antenna group 122 and the second adhesive layer 110 adhered to the second antenna group 122 The adhesive force and the adhesive density are formed more strongly than those of the first adhesive layer 110 and the second adhesive layer 110. When the illegal impersonator tries to isolate and steal a part of the NFC tag, 1 antenna group 121 is directly attached to the object to be bonded 101 of the NFC tag and the second antenna group 122 bonded to the second adhesive layer 110 is separated and broken so that the function of the NFC tag is lost do.

That is, the IC chip 125 of the RF tag sheet 120 and the first antenna group 121 and the second antenna group 122 may be combined to perform the function of the NFC tag. However, The first antenna group 121 and the second antenna group 122 connected to the first antenna group 125 and the second antenna group 122 are separated from each other to prevent the NFC tag from performing the function of the antenna.

3, the NFC tag in which the RF function is broken during the separation according to another embodiment of the present invention includes a first region A and a second region B forming the second antenna group 121, Of the antenna pattern of the first region A and the second region B are separated by separating only the antenna of the first region A and the second region B .

In the above description, the separation of a portion of the second antenna group 122 is described. However, it is needless to say that the adhesive force of the first adhesive layer 110 may be differently applied to the first antenna group 121 as well.

In addition, the NFC tag in which the RF function is broken at the time of separation according to another embodiment of the present invention includes a first pattern (a) constituting the first or second antenna group 121 or 122, A part of the area corresponding to the first pattern (a) and the second pattern (b) of the second adhesive layer 130 among the patterns such as the second pattern (b) and the third pattern (c) , The antenna pattern of the first pattern (a) and the pattern of the second pattern (b), which are strong in adhesion force for forced separation of a part of the NFC tag, The third pattern c attached to the second adhesive layer 130 and having a weak adhesive force may be separated from the second adhesive layer 130 to prevent the function of the NFC tag from being performed.

In the above description, the separation for the first pattern (a), the second pattern (b) and the third pattern (c) of the second antenna group 122 is described. However, It is needless to say that some adhesive force of the first adhesive layer 110 may be applied to the first pattern (a), the second pattern (b), and the third pattern (c).

Therefore, according to the present invention, the adhesive force of the adhesive layers 110 and 120 adhering to the antenna groups 121 and 122 is applied differently for each predetermined region, without performing any additional process, It can break RF function when detached, and illegal use can be prevented.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, Of course.

101: object to be bonded 110: first adhesive layer
120: RF tag sheet 121: first antenna group
122: second antenna group 125: IC chip
130: second adhesive layer 140: sticker

Claims (3)

delete A first adhesive layer 110 to which one side is attached to the object to be bonded 101;
A first antenna group 121 connected to the IC chip 125 in a loop shape and a second antenna group 121 connected to the IC chip 125 in a loop shape are bonded to one side of the first adhesive layer 110, An RF tag sheet (120) having an antenna group (122);
A second adhesive layer 130 bonded to the other side of the RF tag sheet 120; And
And a sticker 140 attached to the other side of the second adhesive layer 130,
The first adhesive layer 110 and the second adhesive layer 130 attached to one side surface and the other side surface of the RF tag sheet 120 are bonded to the first antenna group 121 of the RF tag sheet 120 1 adhesive layer 110 is formed more strongly than the second adhesive layer 122 bonded to the second antenna group 122 so that when part of the NFC tag is separated, The first antenna group 121 is directly attached to the object to be bonded 101 and the second antenna group 122 bonded to the second adhesive layer 110 is separated and broken,
The first or second antenna group 121 or 122 may have a first area A and a second area B and may correspond to an antenna pattern of the first area A or the second area B, The adhesive strength of some of the first or second adhesive layers 110 and 130 is strongly formed and the adhesive force of the other portions is weakly formed so that the first area A and the second area B are formed when part of the NFC tag is separated, Wherein the antenna unit is detachable from the antenna group of the NFC tag. A first adhesive layer 110 to which one side is attached to the object to be bonded 101;
A first antenna group 121 connected to the IC chip 125 in a loop shape and a second antenna group 121 connected to the IC chip 125 in a loop shape are bonded to one side of the first adhesive layer 110, An RF tag sheet (120) having an antenna group (122);
A second adhesive layer 130 bonded to the other side of the RF tag sheet 120; And
And a sticker 140 attached to the other side of the second adhesive layer 130,
The first adhesive layer 110 and the second adhesive layer 130 attached to one side surface and the other side surface of the RF tag sheet 120 are bonded to the first antenna group 121 of the RF tag sheet 120 1 adhesive layer 110 is formed more strongly than the second adhesive layer 122 bonded to the second antenna group 122 so that when part of the NFC tag is separated, The first antenna group 121 is directly attached to the object to be bonded 101 and the second antenna group 122 bonded to the second adhesive layer 110 is separated and broken,
The first and second antenna groups 121 and 122 have a first pattern a, a second pattern b and a third pattern c, which are wound in a loop shape, The adhesive force of some of the first or second adhesive layers 110 and 130 in the area corresponding to the second pattern b is stronger than the adhesive strength of the area corresponding to the third pattern c, (A), the second pattern (b), and the third pattern (c) when the antenna is separated from the antenna pattern.

Images