KR20160059291A - Antenna positioned to display adhesive layer and manufacturing method thereof - Google Patents

Abstract

According to an embodiment of the present invention, an antenna device formed on an adhesive display layer includes a display touch panel, an antenna function layer disposed on the display touch panel, and a cover glass disposed on the antenna function layer. The antenna function layer includes an adhesive layer and an antenna pattern surrounding the adhesive layer. Thus, an antenna can be installed on the bottom surface of a cover glass, thus forming the antenna inside the antenna device without exposing the antenna.

Description

TECHNICAL FIELD [0001] The present invention relates to an antenna device formed on a display adhesive layer,

The present invention relates to a built-in antenna device, and more particularly to an antenna device formed on a display adhesive layer and a method of manufacturing the same.

Handheld electronic devices such as smart phones, tablet PCs, and the like have antennas for wireless communication. These antennas are installed inside the device for design convenience and ease of use.

Conventionally, such an internal antenna is installed in a rear case portion of a smartphone or a tablet PC. However, in recent years, it has become difficult to attach an antenna to a case while using a material of a case as a metal.

Therefore, when the antenna is installed inside the handheld electronic device, it is necessary to install the antenna at a portion other than the case.

Korean Patent Publication No. 10-2012-0020088

According to one embodiment of the present invention, an antenna is provided on the bottom surface of the cover glass, so that the antenna can be formed inside the antenna without being seen.

An antenna device formed on a display adhesive layer according to an embodiment of the present invention includes a display touch panel, an antenna function layer disposed on the display touch panel, and a cover glass disposed on the antenna function layer, And an antenna pattern surrounding the adhesive layer and the adhesive layer.

The antenna pattern may be in the form of a dam surrounding the outer side of the adhesive layer 210.

The display touch panel may include a display panel and a touch panel formed on the display panel.

The adhesive layer may include an OCR (Optical Clear Resin), an optical adhesive film, or an OCA (Optical Clear Adhesive).

The touch panel may include a lower electrode layer and an upper electrode layer. The lower electrode layer and the upper electrode layer may be formed of metal mesh, nano metal paste, carbon nanotube, ITO (Indium Tin Oxide) and IZO (Indium Zinc Oxide).

In addition, in the antenna device formed on the display adhesive layer according to an embodiment, the antenna pattern may be formed of aluminum foil.

Further, in the antenna device formed on the display adhesive layer according to an embodiment, the antenna pattern may be equal to or greater than the height of the adhesive layer.

A method of manufacturing an antenna device formed on a display adhesive layer according to an embodiment of the present invention includes the steps of forming an adhesive layer on a display touch panel, forming an antenna pattern on an outer surface of the adhesive layer, And forming a cover glass.

The adhesive layer may include an OCR (Optical Clear Resin), an optical adhesive film, or an OCA (Optical Clear Adhesive).

The antenna pattern may be equal to or greater than the height of the adhesive layer.

According to an embodiment of the present invention, an antenna such as RFID or NFC is not attached to the outside of a personal terminal by being installed inside the device, and an internal antenna can be used even if a metal case is used.

Also, since the adhesive layer used for adhering the cover glass and the display touch panel can be used for fixing the antenna without using a separate adhesive material for fixing the antenna, waste of the material can be prevented.

Also, by using the dam type antenna, it is possible to prevent the adhesive material from flowing out from the adhesive surface of the cover glass and the touch panel, thereby preventing a functional error.

1 is a cross-sectional view of an antenna device formed on a display adhesive layer according to an embodiment of the present invention.
2 is an exploded perspective view of the antenna functional layer 200 of FIG.
3 is a view for explaining a dam-type antenna pattern according to an embodiment of the present invention.
4 is a specific sectional view of the display touch panel 100 of FIG.
5 is a flowchart of a method of manufacturing an antenna device formed on a display adhesive layer according to an embodiment of the present invention.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises ", or" having ", or the like, specify that there is a stated feature, number, step, operation, , Steps, operations, components, parts, or combinations thereof, as a matter of principle. In addition, the terms 'adhesive' and 'adhesive' mean that both materials are in contact with each other and fixed above a certain level.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be construed as meaning consistent with meaning in the context of the relevant art and are not to be construed as ideal or overly formal in meaning unless expressly defined herein . Like reference numerals in the drawings denote like elements. In the following description, well-known functions or constructions are not described in detail to avoid unnecessarily obscuring the subject matter of the present invention. In addition, the size of each component in the drawings may be exaggerated for the sake of explanation and does not mean a size actually applied.

Embodiments have been described with reference to the flowcharts shown in the drawings. While the above method has been shown and described as a series of blocks for purposes of simplicity, it is to be understood that the invention is not limited to the order of the blocks, and that some blocks may be present in different orders and in different orders from that shown and described herein And various other branches, flow paths, and sequences of blocks that achieve the same or similar results may be implemented. Also, not all illustrated blocks may be required for implementation of the methods described herein.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

1 is a cross-sectional view of an antenna device formed on a display adhesive layer according to an embodiment of the present invention. 1, the antenna device 1000 includes a display touch panel 100, an antenna function layer 200 disposed on the display touch panel 100, and a cover glass 200 disposed on the antenna function layer 200 300).

2 is an exploded perspective view of the antenna functional layer 200 of FIG. 2, the antenna functional layer 200 may include an adhesive layer 210 and an antenna pattern 220 surrounding the adhesive layer 210.

The adhesive layer 210 may function to electrically separate the display touch panel 100 and the cover glass 300 while adhering them. The adhesive layer 210 may include an OCR (Optical Clear Resin), an optical adhesive film, or an OCA (Optical Clear Adhesive).

3 is a view for explaining a dam-type antenna pattern according to an embodiment of the present invention. 3, an adhesive material 210 having a viscosity is provided on a display touch panel 100 and an antenna pattern 220 is provided so that the adhesive material 210 does not flow out of the display touch panel 100 . 3, the adhesive layer 210 and the antenna pattern 220 may be formed as shown in FIG. 3 by appropriately adjusting the amount of the adhesive material 210 in the state of FIG. That is, the antenna pattern 220 may be formed in a dam shape surrounding the outer side of the adhesive layer 210.

The adhesive layer 210 may be formed by providing an adhesive material on the display touch panel 100 and then curing the adhesive layer with ultraviolet rays or heat.

The antenna pattern 220 may be formed of aluminum foil and may be formed by patterning to suit the application or by winding the adhesive layer 210 a plurality of times with a line-shaped conductive material. That is, after the adhesive material is provided to the display touch panel 100, the antenna pattern 220 may be formed and the cover glass 300 may be formed. Or the cover glass 300 is provided on the adhesive layer 210, the antenna pattern 220 may be formed.

Also, the antenna pattern 220 may be formed to have a height equal to or greater than the height of the adhesive layer 210. If the antenna pattern is larger than the height of the adhesive layer, the adhesive strength between the cover glass 300 and the display touch panel 100 may deteriorate.

The antenna pattern 220 according to an exemplary embodiment of the present invention is formed on the outer surface of the adhesive layer disposed on the lower surface of the cover glass 100 so that the antenna pattern 220 can be disposed on the outer periphery of the device without being exposed to the outside. In addition, the antenna pattern may have a thickness of 10 to 30 탆 as long as it can be recognized by a reader.

4 is a specific sectional view of the display touch panel 100 of FIG. Referring to FIG. 4, the display touch panel 100 may include a display panel 110 or a touch panel 120 formed on the display panel 110. That is, the display touch panel 100 may include at least one of a display panel and a touch panel.

The display panel 110 may include a flat panel display module such as a storage electroluminescent device (OLED), a liquid crystal display device (LCD), a plasma display panel (PDP), or the like as well as a curved display panel.

The touch panel 120 includes a lower electrode layer (not shown) and an upper electrode layer (not shown). The lower electrode layer and the upper electrode layer may include a metal mesh having both light transmitting property and conductivity, a nano metal paste, a carbon nanotube, (Indium Tin Oxide), a conductive polymer, or an indium zinc oxide (IZO). The metal mesh or nano metal paste may include at least one of Cu, Al, Ag, Au, Pt, and Fe.

An insulating member may be disposed between the lower electrode layer and the upper electrode layer. The insulating member can maintain physical contact while electrically separating the upper electrode layer and the lower electrode layer. Such an insulating member may be, but not limited to, an OCR (Optical Clear Resin) or an OCA film.

5 is a flowchart of a method of manufacturing an antenna device formed on a display adhesive layer according to an embodiment of the present invention.

Referring to FIG. 5, a method of manufacturing an antenna device formed on a display adhesive layer includes forming an adhesive layer on a display touch panel (S100), forming an antenna pattern on an outer surface of the adhesive layer (S200); And forming a cover glass on the adhesive layer (S300).

Further, the step of forming the adhesive layer (S100) and the step of forming the antenna pattern (S200) may be repeatedly performed. That is, an antenna pattern may be formed after a certain portion of the adhesive layer is formed, and then an adhesive layer may be further formed to adjust the amount of the adhesive layer.

The adhesive layer may be formed by providing an adhesive material such as OCR, optical adhesive film, or OCA (Optical Clear Adhesive). The antenna pattern may be formed by patterning an aluminum foil, or may be formed by laminating a linear conductive material on the outer side of the adhesive layer It may be formed by winding it a plurality of times.

In addition, the antenna pattern is formed to be smaller than the height of the adhesive layer, so that the adhesive can be maintained between the cover glass and the display touch panel without the adhesive material flowing down to the outside of the display panel. The same antenna function can be performed.

While the invention has been shown and described with reference to certain embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. However, it should be understood that such modifications are within the technical scope of the present invention. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

100: Display touch panel
200: antenna function layer
300: cover glass
1000: Antenna device

Claims (10)

Display touch panel;
An antenna functional layer disposed on the display touch panel; And
A cover glass disposed on the antenna functional layer,
Wherein the antenna functional layer comprises an adhesive layer and an antenna pattern surrounding the adhesive layer.
The method according to claim 1,
Wherein the antenna pattern is formed in a dam shape surrounding the outer side of the adhesive layer (210).
The method according to claim 1,
The display touch panel includes:
Display panel and
And a touch panel formed on the display panel.
The method according to claim 1,
Wherein the adhesive layer comprises an OCR (Optical Clear Resin), an optical adhesive film, or an OCA (Optical Clear Adhesive).
The method of claim 3,
The touch panel
A lower electrode layer and an upper electrode layer,
Wherein the lower electrode layer and the upper electrode layer are formed of at least one of metal mesh, nano metal paste, carbon nanotube, indium tin oxide (ITO), and indium zinc oxide (IZO).
The method according to claim 1,
The antenna pattern includes:
And an aluminum foil.
The method according to claim 1,
Wherein the antenna pattern is greater than or equal to a height of the adhesive layer.
Forming an adhesive layer on the display touch panel;
Forming an antenna pattern on the outer surface of the adhesive layer; And
And forming a cover glass on the pressure-sensitive adhesive layer.
9. The method of claim 8,
Wherein the adhesive layer comprises an optical clear resin (OCR), an optical adhesive film, or an optical clear adhesive (OCA).
9. The method of claim 8,
Wherein the antenna pattern is greater than or equal to a height of the adhesive layer.

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