KR20200144076A - Antenna-combined module and display device including the same - Google Patents

Abstract

Embodiments of the present invention provide an antenna coupling module comprising: a touch sensor layer including a plurality of sensing electrodes; an antenna layer stacked as an independent layer on the touch sensor layer and including antenna patterns; and a polarizing layer stacked on the antenna layer. According to the arrangement of the antenna patterns, the touch sensing reliability and antenna radiation efficiency can be improved.

Description

Antenna combining module and display device including the same {ANTENNA-COMBINED MODULE AND DISPLAY DEVICE INCLUDING THE SAME}

The present invention relates to an antenna combining module and a display device including the same. In more detail, it relates to an antenna coupling module including an antenna pattern and sensor electrodes, and a display device including the same.

With the recent development of the information society, wireless communication technologies such as Wi-Fi and Bluetooth are combined with a display device and implemented in the form of, for example, a smartphone. In this case, an antenna may be coupled to the display device to perform a communication function.

With the recent evolution of mobile communication technology, an antenna for performing communication in an ultra-high frequency band corresponding to, for example, 3G to 5G needs to be coupled to the display device.

Meanwhile, a touch panel or a touch sensor, which is an input device that allows the user's command to be input by selecting the instruction content displayed on the screen with a human hand or object, is combined with the display device to implement an image display function and information input function Electronic devices are being developed. For example, as in Korean Patent Publication No. 2014-0092366, a touch screen panel in which a touch sensor is combined with various image display devices has been developed.

As the antenna and the touch sensor coexist in one display device, a desirable gain characteristic of the antenna may be degraded due to, for example, mutual signal interference, and an impedance characteristic for receiving a desired frequency may be disturbed. In addition, when a display device is implemented in the form of a mobile phone, for example, a space in which an antenna can be mounted is reduced, and when overlapping electrodes of a touch sensor, a phenomenon in which the electrode is visually recognized by a user may be intensified.

For example, Korean Patent Application Publication No. 2003-0095557 discloses an antenna structure embedded in a portable terminal, but does not consider the compatibility with other electric devices such as a touch sensor.

Korean Patent Application Publication No. 2014-0092366 Korean Patent Application Publication No. 2003-0095557

An object of the present invention is to provide an antenna combining module having improved signal transmission/reception reliability and optical characteristics.

An object of the present invention is to provide a display device including an antenna coupling module having improved signal transmission/reception reliability and optical characteristics.

1. a touch sensor layer including a plurality of sensing electrodes; An antenna layer stacked on the touch sensor layer as an independent layer and including antenna patterns; And a polarization layer stacked on the antenna layer.

2. In the above 1, the touch sensor layer includes an active area in which the sensing electrodes are arranged and a peripheral area around the active area, and the antenna patterns are arranged to overlap at least one area of the surrounding area in a plane direction. Being, the antenna coupling module.

3. The antenna combination module according to the above 2, wherein the antenna patterns are arranged so as not to overlap with the sensing electrodes in a plane direction.

4. The antenna combination module according to the above 3, wherein the touch sensor layer further includes a dummy electrode disposed between the sensing electrodes adjacent to the terminal region of the active region.

5. The antenna coupling module according to the above 4, wherein the antenna pattern is arranged to at least partially overlap the dummy electrode in a planar direction.

6. The antenna combination module according to the above 2, wherein the touch sensor layer further includes traces branching from the sensing electrodes and extending to the peripheral area.

7. The antenna coupling module of the above 6, further comprising a touch sensing integrated circuit (IC) chip electrically connected to the traces.

8. The antenna combination module of the above 7, further comprising an antenna driving IC chip electrically connected to the antenna patterns and disposed in a region different from the region in which the touch sensing IC chip is disposed among the peripheral regions.

9. The antenna coupling module of the above 8, wherein the touch sensing IC chip and the antenna driving IC chip are respectively disposed at both ends of the antenna coupling module in the length direction.

10. In the above 8, the touch sensing IC chip is disposed at one end in the length direction of the antenna coupling module, and the antenna driving IC chip is at least one side of both sides in the width direction of the antenna coupling module Placed on the antenna coupling module.

11. The antenna combination module according to the above 1, wherein the antenna pattern includes a radiation electrode, a pad, and a transmission line electrically connecting the radiation electrode and the pad.

12. The antenna combination module of the above 11, wherein the pad further comprises a signal pad connected to the transmission line, and a ground pad spaced apart from the signal pad and electrically separated from the transmission line.

13. The antenna coupling module according to the above 1, wherein the antenna layer further comprises a dielectric layer disposed between the antenna patterns and the touch sensor layer.

14. The antenna coupling module according to the above 1, further comprising an adhesive layer formed between the antenna layer and the touch sensor layer.

15. Display panel; And the antenna coupling module of the above 1 stacked on the display panel.

16. The display device according to the above 15, wherein the touch sensor layer of the antenna coupling module is stacked toward the display panel, and the polarizing layer is disposed toward a user's viewing side.

The antenna coupling module according to embodiments of the present invention may include antenna patterns formed as an independent layer between the touch sensor layer and the polarization layer. Accordingly, the degree of freedom of arrangement of the antenna patterns can be increased, and sensing electrodes and traces included in the touch sensor layer can be avoided and arranged. Therefore, it is possible to improve the reliability of the radiation characteristics of the antenna pattern without disturbing the generation of electrical signals at the sensing electrode.

Since the antenna patterns are disposed under the polarizing layer, it is possible to effectively suppress an electrode visibility phenomenon caused by light reflection, and improve image quality of a display device.

1 is a schematic cross-sectional view showing an antenna combining module according to example exemplary embodiments.
2 is a schematic plan view illustrating a structure of an antenna electrode layer in an antenna combining module according to example embodiments.
3 is a schematic plan view illustrating a structure of an antenna electrode layer in an antenna combining module according to some exemplary embodiments.
4 is a schematic plan view illustrating mutual arrangement of a touch sensor electrode layer and an antenna pattern in an antenna combining module according to exemplary embodiments.
5 is a schematic plan view illustrating mutual arrangement of a touch sensor electrode layer and an antenna pattern in an antenna combining module according to exemplary embodiments.
6 is a schematic partially enlarged plan view illustrating mutual arrangement of a touch sensor electrode layer and an antenna pattern in an antenna combining module according to some exemplary embodiments.
7 and 8 are schematic plan views for describing a display device according to exemplary embodiments.

Embodiments of the present invention provide an antenna coupling module in which a touch sensor layer, an antenna layer, and a polarizing layer are sequentially stacked, an antenna pattern and a touch sensor electrode are prevented from being recognized, and mutual operation reliability is improved. In addition, a display device with improved signal/sensing reliability and image quality is provided through the antenna combining module.

Hereinafter, embodiments of the present invention will be described in more detail with reference to the drawings. However, the following drawings attached to the present specification illustrate preferred embodiments of the present invention, and serve to further understand the technical idea of the present invention together with the contents of the present invention, so the present invention is described in such drawings. It is limited to matters and should not be interpreted.

1 is a schematic cross-sectional view illustrating an antenna combining module according to exemplary embodiments.

Referring to FIG. 1, the antenna coupling module includes a touch sensor layer 120, an antenna layer 150, and a polarization layer 180.

The touch sensor layer 120 may include a sensor base layer 100 and a touch sensor electrode layer 110 disposed on the sensor base layer 100.

The sensor base layer 100 is used in a sense encompassing a support layer for forming electrodes included in the touch sensor electrode layer 110 or a film-type member for protecting the electrodes. For example, the sensor substrate layer 100 may be a film material commonly used for a touch sensor without particular limitation.

For example, the sensor substrate layer 100 is a cyclic olefin polymer (COP), polyethylene terephthalate (PET), polyacrylate (PAR), polyetherimide (PEI), polyethylene naphthalate (PEN), polyphenylene sulfide. (PPS), polyallylate, polyimide (PI), cellulose acetate propionate (CAP), polyethersulfone (PES), cellulose triacetate (TAC), polycarbonate (PC), cyclic olefin copolymer A resin material such as (COC), polymethyl methacrylate (PMMA), and the like may be included.

In some embodiments, a protective layer or an encapsulation layer covering the touch sensor electrode layer 110 may be further formed on the sensor base layer 100. The configuration and structure of the touch sensor electrode layer 110 will be described later in more detail with reference to FIG. 4.

An antenna layer 150 is disposed on the touch sensor electrode layer 110. According to exemplary embodiments, the antenna layer 150 may be stacked on the touch sensor electrode layer 110 as a separate layer or a separate film separate or independent from the touch sensor layer 120. In some embodiments, the antenna layer 150 may be coupled to or bonded to the touch sensor layer 120 through the first adhesive layer 80.

The antenna layer 150 may include a dielectric layer 130 and an antenna electrode layer 140 disposed on the dielectric layer 130.

The dielectric layer 130 may include, for example, a transparent inorganic material such as glass or a transparent resin material. Non-limiting examples of the transparent resin material include polyester resins such as polyethylene terephthalate, polyethylene isophthalate, polyethylene naphthalate, and polybutylene terephthalate; Cellulose resins such as diacetyl cellulose and triacetyl cellulose; Polycarbonate resin; Acrylic resins such as polymethyl (meth)acrylate and polyethyl (meth)acrylate; Styrene resins such as polystyrene and acrylonitrile-styrene copolymer; Polyolefin resins such as polyethylene, polypropylene, polyolefin having a cyclo-based or norbornene structure, and ethylene-propylene copolymer; Vinyl chloride resin; Amide resins such as nylon and aromatic polyamide; Imide resin; Polyethersulfone resin; Sulfone resin; Polyether ether ketone resin; Sulfide polyphenylene resin; Vinyl alcohol resin; Vinylidene chloride resin; Vinyl butyral resin; Allylate resin; Polyoxymethylene resin; It may contain a thermoplastic resin such as an epoxy resin. These may be used alone or in combination of two or more.

In addition, a transparent film formed from a thermosetting resin such as (meth)acrylic, urethane, acrylic urethane, epoxy, silicone, or an ultraviolet curable resin may be used as the dielectric layer 130.

In some embodiments, the dielectric layer 130 may include an inorganic insulating material such as silicon oxide, silicon nitride, silicon oxynitride, glass, or the like.

The dielectric layer 130 may be substantially provided as a single layer, and the dielectric layer 130 may include at least two or more layers of a multilayer structure.

Since capacitance or inductance is formed in the dielectric layer 130, a frequency band in which the antenna pattern included in the antenna electrode layer 140 can be driven or sensed may be adjusted. In some embodiments, the dielectric constant of the dielectric layer 130 may be adjusted in the range of about 1.5 to 12. When the dielectric constant exceeds about 12, the driving frequency is excessively reduced, so that driving in a desired high frequency band (eg, 3G to 5G) may not be implemented. Preferably, the dielectric constant of the dielectric layer 130 may range from about 2 to 12.

The antenna electrode layer 140 may be formed, for example, on the upper surface of the dielectric layer 130. The configuration and structure of the antenna electrode layer 140 will be described later in more detail with reference to FIG. 2.

For example, a film antenna may be defined by the antenna electrode layer 140 and the dielectric layer 130. The film antenna may be, for example, a microstrip patch antenna manufactured in the form of a transparent film. The film antenna may be applied to, for example, a communication device or a display device for 3G to 5G mobile communication.

In some embodiments, a ground layer (not shown) may be disposed on the bottom surface of the dielectric layer 130. In an embodiment, a conductive member of a display device including the film antenna may be provided as the ground layer. The conductive member may include, for example, a gate electrode of a thin film transistor (TFT) included in a display panel, various wirings such as scan lines or data lines, or various electrodes such as pixel electrodes and common electrodes.

In one embodiment, the distance between the antenna electrode layer 140 and the ground layer (eg, the thickness of the dielectric layer 130) may be adjusted in a range of about 40 to 1000 μm. In this case, for example, 5G high-frequency communication can be efficiently implemented.

In one embodiment, the first adhesive layer 80 disposed between the antenna layer 150 and the touch sensor layer 120 may be provided as a dielectric layer of the antenna electrode layer 140. In this case, the separate dielectric layer 130 shown in FIG. 1 may be omitted.

An insulating protective layer (not shown) for protecting antenna patterns included in the antenna electrode layer 140 may be formed on the antenna electrode layer 140.

A polarizing layer 180 may be disposed on the antenna layer 150. The polarizing layer 180 may include a coated polarizer or a polarizing plate. The coating polarizer may include a liquid crystal coating layer including a polymerizable liquid crystal compound and a dichroic dye. In this case, the polarizing layer 180 may further include an alignment layer for imparting alignment to the liquid crystal coating layer.

For example, the polarizing plate may include a polyvinyl alcohol-based polarizer and a protective film attached to at least one surface of the polyvinyl alcohol-based polarizer.

In some embodiments, the polarizing layer 180 and the antenna layer 150 may be bonded or bonded to each other through the second adhesive layer 90.

The first and second pressure-sensitive adhesive layers 80 and 90 may be formed using, for example, a pressure-sensitive adhesive (PSA) or an optically transparent adhesive (OCA) including acrylic resin, urethane resin, silicone resin, etc. .

The above-described antenna coupling module may be disposed on a display panel included in, for example, a liquid crystal display (LCD) device or an organic light emitting diode (OLED) display device.

According to exemplary embodiments, the touch sensor layer 120 may be disposed toward the display panel, and the polarizing layer 180 may be disposed toward the user's viewer. Since the antenna layer 150 is included as an independent film or layer separated from the touch sensor layer 120, a space or area in which antenna patterns can be disposed may be increased.

In addition, since the antenna electrode layer 140 is disposed on the touch sensor electrode layer 110, radiation characteristics and impedance characteristics of the antenna pattern may not be interfered or disturbed by the touch sensor electrode layer 110.

In addition, since the polarization layer 180 is disposed on the antenna layer 150, light reflection by the antenna electrode layer 140 can be reduced to prevent the antenna pattern from being visually recognized by the user and deteriorating the image quality of the display device. .

2 is a schematic plan view illustrating a structure of an antenna electrode layer in an antenna combining module according to exemplary embodiments.

Referring to FIG. 2, a plurality of antenna patterns may be arranged on the dielectric layer 130. Each antenna pattern may include a radiation electrode 142, a transmission line 144 and a pad 145. The pad 145 may include a signal pad 146 and a ground pad 148.

The radiation electrode 142 may have, for example, a polygonal plate shape, and the transmission line 144 may extend from the central portion of the radiation electrode 142 to be electrically connected to the signal pad 146. The transmission line 144 may be formed as a single member substantially integral with the radiation electrode 142.

In some embodiments, a pair of ground pads 148 may be disposed with the signal pad 146 interposed therebetween. The ground pads 148 may be electrically separated from the signal pad 146 and the transmission line 144. In this case, horizontal radiation may be substantially implemented by the antenna pattern. In addition, when the ground layer is formed on the bottom surface of the dielectric layer 130 as described above, vertical radiation may be substantially implemented by the antenna pattern.

The radiation electrode 142, the transmission line 144 and/or the pad 145 are respectively silver (Ag), gold (Au), copper (Cu), aluminum (Al), platinum (Pt), palladium (Pd), Chromium (Cr), titanium (Ti), tungsten (W), niobium (Nb), tantalum (Ta), vanadium (V), iron (Fe), manganese (Mn), cobalt (Co), nickel (Ni), Tin (Sn), zinc (Zn), molybdenum (Mo), calcium (Ca), or an alloy thereof may be included. These may be used alone or in combination of two or more. For example, the radiation electrode 142 may include silver (Ag) or a silver alloy in order to implement low resistance, and for example, may include a silver-palladium-copper (APC) alloy.

The radiation electrode 142, the transmission line 144 and/or the pad 145 are indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), indium zinc tin oxide (IZTO), cadmium tin oxide. It may also contain a transparent conductive oxide such as (CTO).

In some embodiments, the radiation electrode 142, the transmission line 144 and/or the pad 145 may include a stacked structure of a transparent conductive oxide layer and a metal layer. For example, the radiation electrode 142, the transmission line 144 and/or the pad 145 may have a three-layer structure of a transparent conductive oxide layer-metal layer-transparent conductive oxide layer. In this case, while the flexible property is improved by the metal layer, resistance may be lowered, and corrosion resistance and transparency may be improved by the transparent conductive oxide layer.

3 is a schematic plan view illustrating a structure of an antenna electrode layer in an antenna combining module according to some exemplary embodiments.

Referring to FIG. 3, a dummy pattern 147 having a mesh structure may be formed around the radiation electrode 142. In one embodiment, the radiation electrode 142 may also include a mesh structure that is substantially the same as or similar to the dummy pattern 147.

For example, the radiation electrode 142 and the dummy pattern 147 may be separated and insulated from each other by the separation region 143 formed along the edge of the radiation electrode 142.

By forming the radiation electrode 142 and the dummy pattern 147 to have substantially the same or similar mesh structure, it is possible to prevent the visibility of the radiation electrode 142 due to the difference in pattern shape while improving the transmittance of the film antenna. have.

In some embodiments, the transmission line 144 branching from the radiation electrode 142 may also include a mesh structure. In an embodiment, the pad 145 illustrated in FIG. 2 may have a solid pattern structure to improve signal speed and reduce resistance.

4 is a schematic plan view illustrating mutual arrangement of a touch sensor electrode layer and an antenna pattern in an antenna combining module according to exemplary embodiments.

Referring to FIG. 4, the antenna combining module includes an antenna electrode layer 140 disposed on the touch sensor electrode layer 110 (see FIG. 1 ), and the antenna electrode layer 140 includes a plurality of antenna patterns 141. can do

The touch sensor electrode layer 110 may include sensing electrodes 103 and 105 and traces 117 and 119. The sensing electrodes 103 and 105 may include first sensing electrodes 103 and second sensing electrodes 105. The traces 117 and 119 may include first traces 117 and second traces 119.

The first sensing electrodes 103 may be arranged along a row direction parallel to the upper surface of the sensor base layer 100 (eg, the X direction). In some embodiments, the first sensing electrodes 103 adjacent to each other in the row direction may be physically or electrically connected to each other by the joint part 113. For example, the joint part 113 may be formed as a substantially integral single member at the same level as the first sensing electrodes 103.

Accordingly, a row of first sensing electrodes extending in the row direction may be formed by the first sensing electrodes 103 and the joint 113. In addition, the plurality of first sensing electrode rows may be arranged along a column direction (eg, a Y direction).

The second sensing electrodes 105 may be arranged along the column direction parallel to the upper surface of the base layer 100, for example. In some embodiments, the second sensing electrodes 105 may be physically spaced apart from each other as island-type unit electrodes. In this case, the second sensing electrodes 105 adjacent in the column direction may be electrically connected to each other by the bridge electrode 115.

Accordingly, a second sensing electrode row extending in the column direction may be formed by the plurality of second sensing electrodes 105 and the bridge electrode 115. In addition, the plurality of second sensing electrode columns may be arranged along the row direction.

For example, an insulating pattern (not shown) that at least partially covers the joint 113 is formed, and the bridge electrode 115 is formed on the insulating pattern and second sensing electrodes 105 adjacent in the column direction. ) Can be contacted or electrically connected.

Each of the sensing electrodes 103 and 105 may have a rhombus shape as shown in FIG. 4. However, the shape of the sensing electrodes 103 and 105 may be appropriately changed in consideration of electrode density, circuit design, and sensing sensitivity.

For example, the sensing electrodes 103 and 105 and/or the bridge electrode 115 are silver (Ag), gold (Au), copper (Cu), aluminum (Al), platinum (Pt), palladium (Pd) , Chromium (Cr), titanium (Ti), tungsten (W), niobium (Nb), tantalum (Ta), vanadium (V), iron (Fe), manganese (Mn), cobalt (Co), nickel (Ni) , Tin (Sn), zinc (Zn), molybdenum (Mo), calcium (Ca), or alloys thereof (eg, silver-palladium-copper (APC)). These may be used alone or in combination of two or more.

The sensing electrodes 103 and 105 and/or the bridge electrode 115 are, for example, indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), indium zinc tin oxide (IZTO), cadmium A transparent conductive oxide such as tin oxide (CTO) may be included.

In some embodiments, the sensing electrodes 103 and 105 and/or the bridge electrode 115 may include a stacked structure of a transparent conductive oxide and a metal. For example, the sensing electrodes 103 and 105 and/or the bridge electrode 115 may have a three-layer structure of a transparent conductive oxide layer-metal layer-transparent conductive oxide layer. In this case, while the flexible property is improved by the metal layer, a signal transmission speed may be improved by lowering resistance, and corrosion resistance and transparency may be improved by the transparent conductive oxide layer.

The first traces 117 may be branched from each of the first sensing electrode rows. For example, the first traces 117 may be distributed and extended on both sides of the base layer 100 in the row direction. The second traces 119 may branch and extend from each of the second sensing electrode columns.

The first and second traces 117 and 119 may be aggregated into a pad area of the touch sensor electrode layer 110 and electrically connected to the touch sensing integrated circuit (IC) chip 210. A physical signal sensed by the sensing electrodes 103 and 105 through the touch sensing IC chip 210 is converted into an electrical signal to implement touch sensing.

As described with reference to FIG. 2, the antenna pattern 141 may include a radiation electrode 142, a transmission line 144, and a pad 145. A plurality of antenna patterns 141 may be disposed on the touch sensor electrode layer 110. For convenience of explanation, in FIG. 4, structures of the antenna pattern 141 and the touch sensor electrode layer 110 are shown together on the same plane.

According to exemplary embodiments, the antenna patterns 141 may be arranged so as not to overlap with the sensing electrodes 103 and 105 and the traces 117 and 119 of the touch sensor electrode layer 110 in a planar direction. For example, the antenna patterns 141 may be arranged to be offset or staggered from the sensing electrodes 103 and 105 and the traces 117 and 119 in the plane direction.

As the sensing electrodes 103 and 105 and the traces 117 and 119 through which the touch sensing signals are generated and transmitted are arranged so as not to overlap the antenna pattern 141, the touch sensing signal path is formed by the antenna pattern 141. May not be disturbed. Accordingly, signal disturbance due to the antenna pattern 141 can be suppressed while improving the touch sensing sensitivity.

In addition, as the antenna pattern 141 is disposed on the touch sensor electrode layer 110 so as to be spaced apart from the touch sensor electrode layer 110, radiation efficiency and gain characteristics may be improved. In addition, it is possible to prevent impedance mismatching from being caused by disturbing the impedance value of the preset antenna pattern 141 by an electric signal from the touch sensor electrode layer 110.

The pads 145 included in the antenna pattern 141 are electrically connected to the antenna driving integrated circuit (IC) chip 220 to perform power feeding and signal transmission. For example, the antenna patterns 141 may be electrically connected to the antenna driving IC chip 220 through a flexible printed circuit board (FPCB) (not shown).

For example, a plurality of antenna patterns 141 may be arranged in an array form to improve linearity and radiation intensity through the antenna electrode layer 140. As shown in FIG. 4, a plurality of antenna patterns 141 are selectively selected only in a peripheral area of the antenna combining module in which sensing electrodes 103 and 105 and traces 117 and 119 are not arranged along the row direction. Can be arranged.

In an embodiment, the plurality of antenna patterns 141 may be independently and individually controlled and driven through one or more antenna driving IC chips 220.

As described above, a dummy pattern 147 having a mesh structure (see FIG. 3) may be formed around the radiation electrode 142 of the antenna pattern 141. In some embodiments, the dummy pattern 147 may substantially overlap with the sensing electrodes 103 and 105 or the dummy electrodes 107 (see FIG. 6) of the touch sensor electrode layer 110 in a planar direction. .

The touch sensing IC chip 210 and the antenna driving IC chip 220 may be separated and disposed in the sensor base layer 100 or a peripheral area of the antenna coupling module. For example, the touch sensing IC chip 210 and the antenna driving IC chip 220 may be disposed at both ends of the peripheral area in the column direction, respectively. In this case, the separation distance or separation distance between the touch sensing IC chip 210 and the antenna driving IC chip 220 is increased, so that mutual sensing/driving disturbance and interference can be suppressed.

In addition, as the antenna patterns 141 are disposed in an area opposite to the pad area of the touch sensor electrode layer 110 in which the traces 117 and 119 are collected, mutual independence from the signal operation in the touch sensor electrode layer 110 This can be secured efficiently.

5 is a schematic plan view illustrating a mutual arrangement of a touch sensor electrode layer and an antenna pattern in an antenna combining module according to exemplary embodiments. Detailed descriptions of configurations and structures that are substantially the same as or similar to those described with reference to FIGS. 1 to 4 are omitted.

Referring to FIG. 5, antenna patterns 141 and antenna driving IC chip 220 may be disposed on a side of the peripheral area in the row direction. For example, the antenna patterns 141 and the antenna driving IC chip 220 may be disposed on at least one side of the first side and the second side in the row direction of the peripheral area.

In FIG. 5, the antenna patterns 141 and the antenna driving IC chip 220 are shown to be disposed on one of the first side and the second side in the row direction (for example, the first side). A plurality of antenna patterns 141 may be distributedly disposed on the first and second side portions.

In this case, the antenna driving IC chip 220 includes a first antenna driving IC chip connected to the antenna patterns 141 disposed on the first side and the antenna patterns 141 disposed on the second side. It may also include a second antenna driving IC chip to be connected.

6 is a schematic partially enlarged plan view illustrating mutual arrangement of a touch sensor electrode layer and an antenna pattern in an antenna combining module according to some exemplary embodiments.

Referring to FIG. 6, the touch sensor electrode layer 110 may further include a dummy electrode 107 in the outer portion of the active area. For example, the dummy electrode 107 may be disposed between the sensing electrodes 103 and 105 adjacent to the outer portion of the active area.

As the dummy electrodes 107 are disposed in the space between the sensing electrodes 103 and 105, the overall reflectance and electrode distribution in the active region may be uniform and leveled. Therefore, it is possible to suppress a phenomenon of electrode visibility due to a difference in local reflectance and an electrode arrangement.

As described above, the antenna patterns 141 are disposed on the touch sensor electrode layer 110 so as to be spaced apart from the touch sensor electrode layer 110 and may be disposed so as not to overlap the sensing electrodes 103 and 105 in a plane direction.

In the embodiment illustrated in FIG. 6, the antenna pattern 141 may be disposed to at least partially overlap the dummy electrode 107 of the touch sensor layer 120. In an embodiment, a part of the antenna pattern 141 (for example, the radiation electrode 142) may overlap the dummy electrode 107 of the touch sensor layer 120 in a plane direction.

Since the dummy electrode 107 is an electrode in which touch sensing is not substantially implemented, even when overlapping with the antenna pattern 141 in a plane direction may not affect touch sensing in the touch sensor electrode layer 110. Accordingly, it is possible to maintain mutual independence of the operation of the antenna and the touch sensor while additionally securing a space for arranging the antenna patterns 141.

In addition, as the dummy electrode 107 of the touch sensor layer 120 overlaps with the radiation electrode 142 and the dielectric layer 130 therebetween in the planar direction, the dummy electrode 107 substantially becomes the antenna pattern 141 It may be provided as a ground electrode of. Accordingly, noise from the radiation electrode 142 may be absorbed by the dummy electrode 107 of the touch sensor layer 120.

7 and 8 are schematic plan views illustrating a display device according to example embodiments.

Referring to FIG. 7, the display device 400 may include the antenna combining module and the display panel 300 described above.

The display panel 300 may include a pixel electrode 310, a pixel defining layer 320, a display layer 330, a counter electrode 340, and an encapsulation layer 350 disposed on the panel substrate 305. I can.

A pixel circuit including a thin film transistor TFT may be formed on the panel substrate 305, and an insulating film may be formed to cover the pixel circuit. The pixel electrode 310 may be electrically connected to, for example, a drain electrode of a TFT on the insulating layer.

The pixel defining layer 320 may be formed on the insulating layer to expose the pixel electrode 310 to define a pixel region. A display layer 330 is formed on the pixel electrode 310, and the display layer 330 may include, for example, a liquid crystal layer or an organic emission layer.

A counter electrode 340 may be disposed on the pixel defining layer 320 and the display layer 330. The counter electrode 340 may be provided as, for example, a common electrode or a cathode of an image display device. An encapsulation layer 350 for protecting the display panel 360 may be stacked on the counter electrode 340.

The antenna coupling module may include a touch sensor layer 120, an antenna layer 150, and a polarization layer 180 sequentially stacked as described above.

에서의 점탄성이 약 0.2MPa 이하일 수 있다. 이 경우, 디스플레이 패널(300)로부터의 노이즈를 차폐할 수 있고, 굴곡 시에 계면 응력을 완화할 수 있다. 일 실시예에 있어서, 상기 점탄성은 약 0.01 내지 0.15MPa일 수 있다.For example, the touch sensor layer 120 may be bonded to the display panel 300 through the third adhesive bonding layer 60. For example, the thickness of the third adhesive layer 60 may be greater than the thickness of each of the first and second adhesive layers 80 and 90, and -20 to 80

The viscoelasticity at may be about 0.2 MPa or less. In this case, noise from the display panel 300 can be shielded and interfacial stress can be relaxed during bending. In one embodiment, the viscoelasticity may be about 0.01 to 0.15 MPa.

The polarizing layer 180 may be disposed toward the user's viewing side of the display device 400, and a window substrate 260 may be stacked on the polarizing layer 180. For example, the window substrate 260 may be bonded to the polarizing layer 180 through the fourth adhesive bonding layer 70.

Referring to FIG. 8, the display device 400 may include a display area 410 and a peripheral area 420. The peripheral area 420 may correspond to, for example, a side portion in the width direction of the display area 410 and/or an end portion in the length direction. The peripheral area 420 may correspond to, for example, a light blocking portion or a bezel portion of an image display device. The peripheral region 420 may substantially coincide or correspond to the peripheral region of the antenna combining module described above.

In some embodiments, the above-described antenna coupling module is disposed over the display area 410 and the peripheral area 420 of the display device 400, and the sensing electrodes 103 and 105 of the touch sensor electrode layer 110 May be arranged in the display area 410.

4 to 6, antenna patterns 141 may be located in the peripheral area 420. In addition, traces 117 and 119 of the touch sensor electrode layer 110 may be disposed in the peripheral area 420.

In addition, a touch sensing IC chip 210 and an antenna driving IC chip 220 may be disposed in the peripheral area 420. By arranging the pads 145 of the antenna pattern 141 so as to be adjacent to the antenna driving IC chip 220 in the peripheral area 420, signal loss can be suppressed by shortening the signal transmission/reception path. In addition, the touch sensing IC chip 210 and the antenna driving IC chip 220 may be separated from each other in the peripheral area 420 and disposed.

In some embodiments, at least a portion of the radiation electrode 142 included in the antenna pattern 141 may be disposed in the display area 410. In this case, the radiation electrode 142 may be disposed to deviate from the sensing electrodes 103 and 105 and may be disposed to overlap the dummy electrode 107 of the touch sensor layer 120.

80: first adhesive layer 90: second adhesive layer
100: sensor base layer 103: first sensing electrode
105: second sensing electrode 110: touch sensor electrode layer
113: joint 115: bridge electrode
117: first trace 119: second trace
120: touch sensor layer 130: dielectric layer
140: antenna electrode layer 141: antenna pattern
142: radiation electrode 144: transmission line
145: pad 146: signal pad
147: dummy pattern 148: ground pad
150: antenna layer 180: polarizing layer
210: touch sensing IC chip 220: antenna driving IC chip

Claims (13)

A touch sensor layer including a plurality of sensing electrodes and traces electrically connected to the sensing electrodes, and including a pad region in which distal ends of the traces are disposed; And
And an antenna layer stacked on the touch sensor layer as an independent layer and including antenna patterns,
The antenna pattern includes a radiation electrode, a pad, and a transmission line electrically connecting the radiation electrode and the pad, respectively, and the pads of the antenna pattern are arranged to be separated from the pad area of the touch sensor layer in a plane direction, Antenna coupling module. The antenna combining module of claim 1, wherein the touch sensor layer includes an active area in which the sensing electrodes are arranged and a peripheral area around the active area. The antenna combining module of claim 2, wherein the pad area of the touch sensor layer is allocated to one side of the peripheral area. The antenna combining module of claim 3, wherein the pads of the antenna pattern are disposed on the other side of the peripheral area except for the one side to which the pad area is allocated in a plane direction. The antenna of claim 2, wherein the antenna patterns are disposed across the active area and the peripheral area in a plane direction, and are disposed between neighboring sensing electrodes so as not to overlap the sensing electrodes in an end area of the active area Combined module. The antenna coupling module of claim 5, wherein the radiation electrode of the antenna pattern is disposed on the active area in a planar direction, and the pad of the antenna pattern is disposed on the peripheral area. The antenna coupling module of claim 2, wherein the touch sensor layer further comprises a dummy electrode disposed between the sensing electrodes adjacent to the terminal region of the active region. The antenna coupling module of claim 1, wherein the pad area of the touch sensor layer and the pads of the antenna layer are respectively disposed at both ends of the antenna coupling module in a length direction. The method according to claim 1, wherein the pad area of the touch sensor layer is disposed at one end in a length direction of the antenna coupling module,
The pads of the antenna layer are disposed on at least one side of both sides in a width direction of the antenna combining module. The method according to claim 1,
A touch sensing integrated circuit (IC) chip electrically connected to the traces on the pad area; And
The antenna coupling module further comprising an antenna driving IC chip electrically connected to the antenna patterns through the pads. The antenna coupling module of claim 1, further comprising a polarizing layer stacked on the antenna layer. Display panel; And
A display device comprising the antenna coupling module of claim 1 stacked on the display panel. The method of claim 12, wherein the antenna coupling module further comprises a polarizing layer stacked on the antenna layer,
The touch sensor layer is stacked toward the display panel, and the polarizing layer is disposed toward a viewer's viewing side.

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