TWM461082U - Passive RFID tag protection sticker - Google Patents

Description

Protective sticker with passive RFID tag

The present invention relates to a protective sticker having a passive RFID tag, in particular to a structure in which a passive RFID tag is placed on the inner layer of the protective sticker, and further provided with an electromagnetic wave absorbing layer at the position of the passive RFID tag.

With the increasing popularity of electronic coupons, the combination of electronic coupons on 3C products can reduce the number of cards that users carry with them, making them more convenient to use.

The technology that is more commonly used in electronic coupons is Radio Frequency Read Identification (RFID), which uses RFID readers to write information to or read RFID tags through RFID readers and RFID tags. Take the information, and the two will cooperate to achieve the function of the electronic ticket in the RFID tag stored value and consumption deduction. In particular, passive RFID tags are driven by electromagnetic induction, do not require an active power supply, and have the advantages of low price and small size, so they are more suitable for the use of electronic tickets.

The creator has proposed the Republic of China new patent No. M430622 "Handheld device protection sticker with passive RFID tag". In this case, the passive RFID tag is disposed on the inner layer of the protective layer composed of the adhesive layer and the adhesive layer; therefore, when the protective cover of the case is electrostatically adsorbed on the handheld device by the adhesive layer, the passive RFID tag is exposed on the handheld device. In addition, it can solve the shortcomings of setting the passive RFID tag inside the handheld device or being placed on the SIM card to be susceptible to electromagnetic wave interference, and still has a good sensing effect.

However, the creator actually used the previously created protective sticker and found that when the outer casing of the 3C product uses metal, the passive RFID tag absorbs energy and commands from the RFID reader through the radio wave in the passive RFID tag, and passively. The data in the RFID tag's chip is also communicated by the antenna to the RFID reader through radio waves, but the radio waves that transmit energy and commands are affected by the materials attached to the antenna, and the metal products cause reflection or refraction of the radio waves. RFID readers are unrecognizable, causing radio frequency interference (RFI) or electromagnetic interference (EMI) problems, which in turn affects the sensing distance of passive RFID tags, causing inconvenience in use.

In order to solve the aforementioned shortcomings, the creator further proposes a protective sticker with a passive RFID tag, which is provided with a passive RFID tag on the inner layer of the protection sticker, and an electromagnetic wave absorption layer is disposed at the position of the passive RFID tag to overcome the adoption of the 3C product. The problem of radio frequency interference (RFI) or electromagnetic interference (EMI) generated by a passive RFID tag that protects the inner layer of the sticker.

The present invention comprises: a protective sticker body, the protective sticker body comprises two opposite sides, one side of which is a film layer and the other side is a scratch-resistant layer; a passive RFID tag is disposed on the film layer and Between the scratch-resistant layers; an electromagnetic wave absorbing layer disposed between the film layer and the scratch-resistant layer, and the electromagnetic wave absorbing layer separates the passive RFID tag from the film layer. Preferably, the area of the electromagnetic wave absorbing layer is larger than the area of the passive RFID tag.

The protective sticker body further has a backing between the film layer and the scratch-resistant layer a layer, and the passive RFID tag and the electromagnetic wave absorbing layer are disposed in the adhesive layer.

The protective sticker body further has a backing layer between the adhesive film layer and the scratch-resistant layer, and the passive RFID tag is disposed in the adhesive layer, and the electromagnetic wave absorbing layer is disposed on the adhesive layer and the adhesive layer between.

Further, a release film is disposed on the adhesive film layer of the protection sticker body; and a surface protection film is disposed on the scratch resistance layer of the protection sticker body.

When the protective sticker body is attached to an outer casing of an electronic product by the adhesive film layer, and the passive RFID tag at least partially overlaps a metal surface of the outer casing, the area of the electromagnetic wave absorbing layer covers the The area of overlap of the passive RFID tag with the metal surface.

The effect of the invention is:

1. The electromagnetic wave absorbing layer is used to separate the adhesive film layer of the passive RFID tag and the protective sticker body. Therefore, when the protective sticker body is attached to the metal casing of the 3C product by using the adhesive film layer, the electromagnetic wave absorbing layer can be blocked. Electromagnetic waves or other radio frequency waves generated by the battery and electromagnetic waves pass through the metal casing to affect the passive RFID tag, thereby maintaining the good sensing effect of the passive RFID tag.

2. The structure is simple and the process is easy. The passive RFID tag and the electromagnetic wave absorbing layer can be embedded in the aforementioned adhesive layer by using the existing hot press molding or plastic injection.

(1) ‧‧‧Protection stickers

(11) ‧ ‧ film layer

(12) ‧‧ ‧ adhesive layer

(13)‧‧‧Scratch resistant layer

(2) ‧‧‧ Passive RFID tags

(3) ‧‧‧Electromagnetic wave absorption layer

(4) ‧‧‧ release mold

(5) ‧‧‧Surface film

(6) ‧‧‧Handheld devices

(61)‧‧‧Metal casing

(1A) ‧‧‧Protection ontologies

(11A) ‧‧ ‧ film layer

(12A) ‧‧ ‧ adhesive layer

(13A)‧‧‧Scratch resistant layer

(2A)‧‧‧ Passive RFID tags

(3A)‧‧‧Electromagnetic wave absorption layer

[First figure] is a cross-sectional view of the protective sticker in the first embodiment of the present invention.

[Second picture] In the first embodiment of the present invention, the release film is peeled off, and the protection sticker body is attached to the hand-held device. Schematic diagram.

[Third image] is a schematic view of the first embodiment in which the protective cover body is attached to the hand-held device and the surface protective film is peeled off.

[Fourth figure] is a cross-sectional view of the protective sticker in the second embodiment of the present creation.

In summary of the above technical features, the main effects of the present invention having a passive RFID tag protector will be apparent in the following embodiments.

Referring to the first figure, the embodiment includes: a protective sticker body (1), the protective sticker body (1) sequentially has a film layer (11), and a backing layer (12) is disposed on the glue. a film layer (11), and a scratch-resistant layer (13) are disposed on the backing layer (12); a passive RFID tag (2) and an electromagnetic wave absorbing layer (3), the passive RFID tag (2) And the electromagnetic wave absorbing layer (3) is disposed in the adhesive layer (12), and the area of the electromagnetic wave absorbing layer (3) is larger than the area of the passive RFID tag (2), and the passive RFID tag (2) is The film layers (11) are separated. The passive RFID tag (2) and the electromagnetic wave absorbing layer (3) can be embedded in the adhesive layer (12) by hot pressing or molding during the manufacturing process; and then a release film (4) ) is disposed on the film layer (11) of the protection sticker body (1), and a surface protection film (5) is disposed on the scratch-resistant layer (13) of the protection sticker body (1).

Referring to the second and third figures, the release film (4) is first removed, so that the protective cover body (1) can be electrostatically adsorbed in a handheld manner by using the adhesive layer (11). On one of the outer casings of the device (6), the outer casing of the embodiment is a metal outer casing (61). It should be noted that the handheld device (6) has a battery placement area for accommodating the battery of the handheld device (6). In order to prevent the passive RFID tag (2) from being interfered by the electromagnetic wave of the battery, the protection device body ( 1) When attached to the handheld device (6), the passive RFID tag (2) is to be kept away from the position of the battery. When the film layer (11) is completely attached to the metal casing (61) of the hand-held device (6), the surface film (5) is peeled off.

Thereby, when the protective sticker body (1) is attached to the metal casing (61) of the handheld device (6), the passive RFID tag (2) and the film layer are 11) Separated, so that the electromagnetic wave absorbing layer (3) is identical to the passive RFID tag (2) and the metal casing (61) of the hand-held device (6). In this way, although the metal casing (61) is easy to transmit electromagnetic waves or other radio frequency waves, the electromagnetic wave absorbing layer (3) can block the electromagnetic waves generated by the battery or other radio frequency waves from passing through the metal casing (61) to affect the passive RFID. The label (2) maintains the passive RFID tag (2) with good sensing effect.

In the above embodiment, when the protective sticker body (1) is attached to an outer casing of an electronic product by the adhesive film layer (11), and the passive RFID tag (2) at least partially overlaps When one of the metal surfaces of the outer casing is used, the area of the electromagnetic wave absorbing layer (3) can cover the overlapping area of the passive RFID tag (2) with the metal surface to block the influence of electromagnetic waves or other radio frequency waves. The electronic product is the aforementioned hand-held device (6), and the outer casing and the metal surface are like the aforementioned metal casing (61).

The second embodiment of the present invention is shown in the fourth figure. The embodiment includes a protective sticker body (1A), and the protective sticker body has a film layer (11A) and a backing layer (12A). On the film layer (11A), and a scratch resistant a layer (13A) is disposed on the adhesive layer (12A); a passive RFID tag (2A) and an electromagnetic wave absorbing layer (3A) are used, and the passive RFID tag (2A) can be formed by hot press molding or The mold is injected and embedded in the adhesive layer (12A), and the electromagnetic wave absorbing layer (3) is disposed between the adhesive layer (12A) and the adhesive film layer (11A), and passes through the adhesive layer (12A). The electromagnetic wave absorbing layer (3A) is fixed to the film layer (11A), and the electromagnetic wave absorbing layer (3A) is separated from the passive RFID tag (2A) and the film layer (11A). Thereby, the effects as described in the first embodiment can be achieved.

In view of the above description of the embodiments, the above-described embodiments are merely a preferred embodiment of the present invention, and the implementation of the present invention is not limited thereto. The scope, that is, the simple equivalent changes and modifications made in accordance with the scope of the patent application and the content of the creation of the creation, are within the scope of this creation.

(1) ‧‧‧Protection stickers

(11) ‧ ‧ film layer

(12) ‧‧ ‧ adhesive layer

(13)‧‧‧Scratch resistant layer

(2) ‧‧‧ Passive RFID tags

(3) ‧‧‧Electromagnetic wave absorption layer

(4) ‧‧‧ release mold

(5) ‧‧‧Surface film

Claims (7)

A protective sticker with a passive RFID tag, comprising: a protective sticker body, the protective sticker body comprises two opposite sides, one side of which is a film layer and the other side is a scratch resistant layer; a passive RFID tag, Between the film layer and the scratch-resistant layer; an electromagnetic wave absorbing layer disposed between the film layer and the scratch-resistant layer, and the electromagnetic wave absorbing layer separates the passive RFID tag from the film layer. A protective sticker having a passive RFID tag according to claim 1, wherein the electromagnetic wave absorbing layer has an area larger than an area of the passive RFID tag. The protective sticker with a passive RFID tag according to claim 1, wherein the protective sticker body further has a backing layer between the adhesive film layer and the scratch-resistant layer, and the passive RFID tag and the electromagnetic wave absorption A layer is disposed in the adhesive layer. The protective sticker having a passive RFID tag according to claim 1, wherein the protective sticker body further has a backing layer between the adhesive film layer and the scratch-resistant layer, and the passive RFID tag is disposed on the back In the adhesive layer, the electromagnetic wave absorbing layer is disposed between the adhesive layer and the adhesive film layer. A protective tape having a passive RFID tag according to claim 1 is further provided with a release film disposed on the adhesive film layer of the protective cover body. A protective sticker having a passive RFID tag according to claim 1 is further provided with a surface protective film disposed on the scratch-resistant layer of the protective sticker body. A protective sticker having a passive RFID tag for attaching to an electronic product, the electronic product having a housing, at least a portion of which is a metal surface, the passive The protection sticker of the RFID tag comprises: a protection sticker body, the protection sticker body comprises two opposite sides, one side of which is a film layer and the other side is a scratch-resistant layer; a passive RFID tag is disposed in the Between the film layer and the scratch-resistant layer; an electromagnetic wave absorbing layer disposed between the film layer and the scratch-resistant layer, and the electromagnetic wave absorbing layer separates the passive RFID tag from the film layer; the protective layer The body is attached to the outer casing of the electronic product by the adhesive layer, and the passive RFID tag at least partially overlaps the metal surface of the outer casing, and the area of the electromagnetic wave absorbing layer covers the passive RFID tag and the metal surface Overlap area.