WO2021206386A1

WO2021206386A1 - Antenna insertion electrode structure and image display device comprising same

Info

Publication number: WO2021206386A1
Application number: PCT/KR2021/004201
Authority: WO
Inventors: 맹창준; 조은현
Original assignee: 동우화인켐 주식회사
Priority date: 2020-04-06
Filing date: 2021-04-05
Publication date: 2021-10-14
Also published as: CN215117477U; CN113495648A; KR20210123769A

Abstract

Embodiments of the present invention provide an antenna insertion electrode structure and an image display device comprising same. An antenna insertion electrode structure comprises: a base layer; first sensing electrodes and second sensing electrodes disposed on different layers with the base layer interposed therebetween; and an antenna pattern including a radiation electrode disposed on the same layer as the second sensing electrodes and disposed between the second sensing electrodes that are neighboring each other.

Description

Antenna insertion electrode structure and image display device including same

The present invention relates to an antenna insertion electrode structure and an image display device including the same. More particularly, it relates to an antenna insertion electrode structure including an antenna pattern and a sensing electrode, and an image display device including the same.

Recently, as a touch sensor is combined with an image display device, electronic devices capable of inputting a user's command by selecting the instruction displayed on the image display device with a human hand or an object have been developed in various ways, such as, for example, in the form of a smart phone or a tablet PC. form is being developed.

In addition, the image display device is combined with a communication device such as a smart phone. For example, an antenna for realizing high-frequency or ultra-high frequency communication in the range of 3G to 5G or higher may be mounted on the image display device.

As described above, when the touch sensor and the antenna are mounted in one image display device, the radiation patterns of the touch sensing electrodes and the antenna may be distributed together. Accordingly, the touch sensing sensitivity may be reduced due to the radiation pattern of the antenna. In addition, radiation characteristics of the antenna may be disturbed by the touch sensing electrodes.

Therefore, there is a need for a design for efficiently disposing electrodes while maintaining mutual independence of touch sensing and antenna radiation characteristics.

For example, as in Korean Patent Application Laid-Open No. 2014-0092366, a touch screen panel in which a touch sensor is coupled to various image display devices has recently been developed. Korean Patent Application Laid-Open No. 2013-0095451 discloses an antenna integrated into a display panel. However, an image display device in which an antenna and a touch sensor are efficiently disposed together is not disclosed.

One object of the present invention is to provide an antenna insertion electrode structure having improved radiation characteristics and sensing reliability.

An object of the present invention is to provide an image display device including an antenna insertion electrode structure having improved radiation characteristics and sensing reliability.

1. base layer; first sensing electrodes and second sensing electrodes disposed on different layers with the base layer interposed therebetween; and an antenna pattern disposed on the same layer as the second sensing electrodes and including a radiation pattern disposed between the neighboring second sensing electrodes.

2. The method of 1 above, wherein the first sensing electrodes extend in a first direction parallel to the upper surface of the base layer, and the second sensing electrodes are parallel to the upper surface of the base layer and perpendicular to the first direction. An antenna insertion electrode structure extending in two directions.

3. The antenna insertion electrode structure according to the above 2, wherein the center line of the radiation electrode overlaps with any one of the second sensing electrodes of the second sensing electrodes along the first direction.

4. The antenna insertion of the above 3, wherein the second sensing electrode overlapping the center line of the radiation pattern and the second direction among the second sensing electrodes has a shorter length than neighboring second sensing electrodes electrode structure.

5. The antenna insertion electrode structure of the above 1, further comprising dummy patterns arranged around the second sensing electrodes and the radiation pattern on the base layer.

6. The antenna insertion electrode structure according to the above 5, wherein the dummy patterns include an antenna dummy pattern disposed around the radiation pattern, and the antenna dummy pattern has a different shape from the dummy pattern around the second sensing electrodes. .

7. The antenna insertion electrode structure according to the above 1, wherein the first sensing electrode overlapping the radiation pattern in the thickness direction among the first sensing electrodes includes an opening formed at a position where the radiation pattern is projected.

8. The antenna insertion electrode structure of the above 1, wherein the first sensing electrodes include slits formed at positions overlapping the second sensing electrodes in a planar direction.

9. The antenna insertion electrode structure of the above 1, wherein the line widths of the first sensing electrodes are greater than the line widths of the second sensing electrodes.

10. The antenna insertion electrode structure according to the above 1, further comprising a first trace connected to the first sensing electrodes and a second trace connected to the second sensing electrodes.

11. The antenna insertion electrode structure according to the above 10, wherein the first sensing electrodes and the second sensing electrodes include a transparent conductive oxide.

12. The antenna insertion electrode structure of the above 11, wherein the second trace includes a transparent conductive oxide pattern and a metal pattern sequentially stacked from the base layer.

13. The antenna insertion electrode structure according to the above 12, wherein the antenna pattern includes the same metal or alloy as the metal pattern of the second trace.

14. The method of 10 above, wherein the antenna pattern further includes a transmission line connected to one end of the radiation pattern and a signal pad connected to an end of the transmission line, wherein the signal pad is the second trace in the peripheral region of the base layer. The antenna insertion electrode structure, which is disposed so as not to overlap with.

15. Display panel; and an antenna insertion electrode structure of the above-described embodiments stacked on the display panel.

16. The image display device according to 15 above, further comprising a polarization layer disposed between the display panel and the antenna insertion electrode structure.

In the antenna insertion electrode structure according to embodiments of the present invention, the antenna pattern may be disposed on the same layer as any one of the first sensing electrode and the second sensing electrode. Therefore, it is possible to enhance mutual independence while suppressing mutual interference between touch sensing driving/antenna radiation driving in the touch sensor by utilizing the thin electrode stacked structure.

According to some embodiments, the line width of the second sensing electrode disposed together with the antenna pattern may be relatively reduced. Accordingly, it is possible to sufficiently secure a space for insertion of the antenna pattern to improve radiation independence, and to increase the line width of the first sensing electrode relatively to ensure sufficient generation of capacitance for touch sensing.

In some embodiments, dummy patterns may be formed around the antenna pattern and the second sensing electrode, and an opening overlapping the antenna pattern may be formed in the first sensing electrode. Accordingly, it is possible to more effectively prevent mutual interference of antenna radiation/touch sensing while reducing electrode visibility due to the antenna pattern.

1 to 4 are schematic cross-sectional views for explaining an antenna insertion electrode structure according to exemplary embodiments.

5 and 6 are schematic plan views for explaining a sensing electrode arrangement of an antenna insertion electrode structure according to exemplary embodiments.

7 and 8 are schematic plan views for explaining an antenna insertion electrode structure according to exemplary embodiments.

9 is a schematic plan view for explaining an antenna insertion electrode structure according to some exemplary embodiments.

10 and 11 are schematic cross-sectional views and plan views, respectively, for explaining a display device including an antenna insertion electrode structure according to example embodiments.

Embodiments of the present invention provide an antenna insertion electrode structure including an antenna pattern and a sensing electrode together. In addition, there is provided an image display device including the antenna insertion electrode structure.

Hereinafter, with reference to the drawings, embodiments of the present invention will be described in more detail. However, the following drawings attached to the present specification illustrate preferred embodiments of the present invention, and serve to further understand the technical spirit of the present invention together with the above-described content of the present invention, so the present invention is described in such drawings It should not be construed as being limited only to the matters.

In the drawings below, two directions parallel to the upper surface of the base layer 100 and perpendicular to each other are referred to as a first direction and a second direction. For example, the first direction may correspond to the width direction of the antenna insertion electrode structure or the image display device. The second direction may correspond to the length direction of the antenna insertion electrode structure or the image display device.

The terms "first", "second", "top", "bottom" and the like used in this application do not designate absolute positions, but are used as relative meanings for distinguishing different positions and configurations.

Referring to FIG. 1 , the antenna insertion electrode structure is formed on the base layer 100 , the second sensing electrode 130 and the antenna pattern 150 formed on the upper surface of the base layer 100 , and on the lower surface of the base layer 100 . It may include a first sensing electrode 110 formed on the .

The substrate layer 100 is used to encompass a support layer or a film-type substrate for forming the

sensing electrodes

110 and 130 and the antenna pattern 150 . For example, the base layer 100 may be a film material commonly used for a touch sensor without any particular limitation, and may include, for example, glass, a polymer, and/or an inorganic insulating material. Examples of the polymer include cyclic olefin polymer (COP), polyethylene terephthalate (PET), polyacrylate (PAR), polyetherimide (PEI), polyethylene naphthalate (PEN), polyphenylene sulfide (PPS), poly Allylate (polyallylate), polyimide (PI), cellulose acetate propionate (CAP), polyethersulfone (PES), cellulose triacetate (TAC), polycarbonate (PC), cyclic olefin copolymer (COC), poly Methyl methacrylate (PMMA), etc. are mentioned. Examples of the inorganic insulating material include silicon oxide, silicon nitride, silicon oxynitride, and metal oxide.

The base layer 100 may serve as a dielectric layer of the antenna pattern 150 . Preferably, the dielectric constant of the base layer 100 may be adjusted in the range of about 1.5 to 12. When the permittivity exceeds about 12, the driving frequency is excessively reduced, so that driving in a desired high frequency or very high frequency band may not be realized.

The first sensing electrode 110 and the second sensing electrode 130 are vertically spaced apart from each other with the base layer 100 interposed therebetween, and may be located in different layers or at different levels. According to example embodiments, touch sensing may be implemented through mutual capacitance generated by the first and

second sensing electrodes

110 and 130 .

The first sensing electrode 110 may be disposed on the bottom surface of the base layer 100 , and the second sensing electrode 130 may be disposed on the top surface of the base layer 100 .

The

sensing electrodes

110 and 130 are transparent such as, for example, indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), indium zinc tin oxide (IZTO), cadmium tin oxide (CTO), or the like. It may contain a conductive oxide.

In some embodiments, the

sensing electrodes

110 and 130 may include silver (Ag), gold (Au), copper (Cu), aluminum (Al), platinum (Pt), palladium (Pd), or chromium (Cr). , titanium (Ti), tungsten (W), niobium (Nb), tantalum (Ta), vanadium (V), iron (Fe), manganese (Mn), cobalt (Co), nickel (Ni), zinc (Zn) , molybdenum (Mo), tin (Sn), calcium (Ca), etc. or an alloy thereof (eg, silver-palladium-copper (APC) or copper-calcium (CuCa)). These may be used alone or in combination of two or more.

In some embodiments, the

sensing electrodes

110 and 130 may include a stacked structure of a transparent conductive oxide layer and a metal or alloy layer. For example, the

sensing electrodes

110 and 130 may have a two-layer structure of a transparent conductive oxide layer-metal layer, a three-layer structure of a transparent conductive oxide layer-metal layer-transparent conductive oxide layer, or the like. In this case, while the flexible characteristic is improved by the metal layer, the signal transmission speed may be improved by lowering the resistance, and corrosion resistance and transparency may be improved by the transparent conductive oxide layer.

In a preferred embodiment, the

sensing electrodes

110 and 130 may be formed of the transparent conductive oxide layer to improve transparency.

In some embodiments, the

sensing electrodes

110 and 130 may have a mesh structure including, for example, the above-described metal or alloy.

The antenna pattern 150 may be located on the same layer or on the same level as the first sensing electrode 110 or the second sensing electrode 130 . According to example embodiments, the antenna pattern 150 may be disposed on the upper surface of the base layer 100 together with the second sensing electrode 130 corresponding to the upper sensing electrode.

For example, the second sensing electrode 130 may be closer to the touch surface of the user or the display surface of the image display device. In this case, the antenna pattern 150 may also be adjacent to the touch surface or the display surface to easily implement radiation characteristics in a desired frequency band. In addition, radiation characteristics of the antenna pattern 150 may be implemented relatively freely from shielding by the electrode structures.

The antenna pattern 150 may be formed to enable high-frequency or ultra-high frequency communication (eg, 3G, 4G, 5G communication, etc.). The structure and configuration of the antenna pattern 150 will be described later in more detail with reference to FIG. 7 .

The antenna pattern 150 may include the aforementioned metal or alloy (eg, APC or CuCa) in consideration of low resistance or fine line width patterning.

The antenna pattern 150 may include the above-described transparent conductive oxide. The antenna pattern 150 may include a multilayer structure of a transparent conductive oxide layer and a metal layer (eg, a transparent conductive oxide layer-metal layer structure, a transparent conductive oxide layer-metal layer-transparent conductive oxide layer structure).

In an embodiment, the antenna pattern 150 may include a mesh structure.

A first trace 120 may be connected to each of the first sensing electrodes 110 . The first trace 120 may be disposed on the bottom surface of the base layer 100 together with the first sensing electrode 110 .

In some embodiments, the first trace 120 may include a first transparent conductive oxide pattern 115 and a first metal pattern 117 . The first transparent conductive oxide pattern 115 and the first metal pattern 117 may be sequentially stacked from the bottom surface of the base layer 100 .

For example, the first transparent conductive oxide pattern 115 may include the same material as the first sensing electrode 110 and may be patterned together with the first sensing electrode 110 through substantially the same etching process.

The first metal pattern 117 may be stacked on the first transparent conductive oxide pattern 115 to reduce a signal transmission resistance through the first trace 120 . The first metal pattern 117 may include the aforementioned metal or alloy.

A second trace 140 may be connected to each of the second sensing electrodes 130 . The second trace 140 may be disposed on the upper surface of the base layer 100 together with the second sensing electrode 130 .

In some embodiments, the second trace 140 may include a second transparent conductive oxide pattern 135 and a second metal pattern 137 . The second transparent conductive oxide pattern 135 and the second metal pattern 137 may be sequentially stacked from the upper surface of the base layer 100 .

For example, the second transparent conductive oxide pattern 135 may include the same material as the second sensing electrode 130 , and may be patterned together with the second sensing electrode 130 through substantially the same etching process.

The second metal pattern 137 may be stacked on the second transparent conductive oxide pattern 135 to reduce a signal transmission resistance through the second trace 140 . The second metal pattern 137 may include the aforementioned metal or alloy.

In some embodiments, the antenna pattern 150 may include substantially the same metal or alloy as the second metal pattern 137 . For example, when the second metal pattern 137 is formed, the antenna pattern 150 may also be formed through substantially the same etching process.

Referring to FIG. 2 , the antenna pattern 150 may include a multilayer structure of the transparent conductive oxide layer 152 and the metal layer 154 as described above. The transparent conductive oxide layer 152 and the metal layer 154 may be sequentially stacked from the top surface of the base layer 100 .

In some embodiments, the transparent conductive oxide layer 152 of the antenna pattern 150 is made of substantially the same material as the second transparent conductive oxide pattern 135 of the second sensing electrode 130 and the second trace 140 . and may be formed through substantially the same etching process.

The metal layer 154 of the antenna pattern 150 includes substantially the same metal or alloy as the second metal pattern 137 of the second trace 140 , and may be formed through substantially the same etching process.

As described above, the antenna pattern 150 includes a multi-layer structure of the transparent conductive oxide layer 152 and the metal layer 154, ensuring sufficient radiation characteristics through the metal layer 154 having a low resistance, while maintaining transparency together. can be improved In addition, since the transparent conductive oxide layer 152 is included, it is possible to reduce or prevent the antenna pattern 150 from being visually recognized as compared to the second sensing electrode 130 .

Referring to FIG. 3 , the second sensing electrode 130 and the second trace 140 are disposed on the bottom surface of the base layer 100 , and the first sensing electrode 110 and the first trace 120 are the base layer. It may be disposed on the upper surface of (100). The antenna pattern 150 may be disposed on the bottom surface of the base layer 100 together with the second sensing electrode 130 .

Referring to FIG. 4 , the first sensing electrode 110 and the second sensing electrode 130 may be formed on different substrate layers.

For example, the first sensing electrode 110 and the first trace 120 are disposed on the upper surface of the first base layer 100a, and the second sensing electrode 130 and the second trace 140 are 2 It may be disposed on the upper surface of the base layer (100b).

The first base layer 100a and the second base layer 100b on which the first sensing electrode 110 and the second sensing electrode 130 are formed, respectively, may be coupled to each other through the adhesive layer 50 . In this case, the first sensing electrode 110 may be substantially buried in the adhesive layer 50 .

The antenna pattern 150 may be disposed on the upper surface of the second base layer 100b, as shown in FIG. 4 . In an embodiment, the antenna pattern 150 may be disposed on the upper surface of the first base layer 100a together with the first sensing electrode 110 .

According to the above-described exemplary embodiments, the antenna pattern 150 may be disposed on the same layer as any one of the first sensing electrode 110 and the second sensing electrode 130 . Accordingly, mutual independence can be enhanced while suppressing mutual interference between touch sensing driving/antenna radiation driving in the touch sensor. In addition, as the antenna pattern 150 is coupled to the same layer as the sensing electrode of the touch sensor, a thin antenna insertion electrode structure can be obtained without additional antenna space allocation.

5 and 6 are schematic plan views for explaining an electrode arrangement for sensing an antenna insertion electrode structure according to exemplary embodiments.

Referring to FIG. 5 , the first sensing electrode 110 may extend in a first direction, and a plurality of first sensing electrodes 110 may be arranged along the second direction. The second sensing electrode 130 may extend along the second direction from the upper layer of the first sensing electrode 110 . Also, a plurality of second sensing electrodes 130 may be arranged along the first direction.

According to example embodiments, the line width (eg, in the second direction) of the first sensing electrode 110 is the line width (eg, in the first direction) of the second sensing electrode 130 . width) can be greater than As described above, the antenna pattern 150 may be disposed together with the second sensing electrode 130 .

In this case, by reducing the line width of the second sensing electrode 130 , it is possible to sufficiently secure a space for insertion of the antenna pattern 150 . In addition, the line width of the first sensing electrode 110 is relatively increased, so that it is possible to sufficiently ensure the generation of capacitance for touch sensing.

In some embodiments, one first trace 120 is connected from each of the first sensing electrodes 110 , and a plurality of second sensing electrodes 130 are coupled by the second trace 140 . Substantially one channel may be formed. For example, two second sensing electrodes 130 may be coupled through the second trace 140 .

Accordingly, scan/drive signal matching with the first sensing electrode 110 having a relatively large line width may be improved through coupling of the second sensing electrodes 130 .

Referring to FIG. 6 , at least one of the first sensing electrode 110 and the second sensing electrode 130 may have a zigzag line or a wavy line shape. For example, the second sensing electrode 130 having a relatively small line width may have a zigzag line or a wavy line shape.

The shape of the second sensing electrode 130 may be appropriately changed in consideration of the antenna pattern 150 insertion space.

Referring to FIG. 7 , the antenna pattern 150 may include a radiation pattern 160 and a transmission line 162 . The radiation pattern 160 may have, for example, a polygonal shape such as a rhombus shape or a diamond shape. The transmission line 162 may extend from one end of the radiation pattern 160 .

In some embodiments, a signal pad 164 may be connected to an end of the transmission line 162 . The signal pad 164 may be a single member substantially integrally connected to the transmission line 162 .

A ground pad 166 may be disposed around the signal pad 164 . For example, a pair of ground pads 166 may be disposed to face each other with the signal pad 164 interposed therebetween. The ground pad 166 may be electrically and physically separated from the transmission line 162 and the signal pad 164 .

As described above, the antenna pattern 150 may be disposed on the upper surface of the base layer 100 together with the second sensing electrode 130 . According to example embodiments, the radiation pattern 160 of the antenna pattern 150 may be disposed between the adjacent second sensing electrodes 130 .

In some embodiments, as the antenna pattern 150 is inserted, the second sensing electrode 130 overlapping the radiation pattern 160 in the second direction is shorter than other adjacent second sensing electrodes 130 . can have a length. For example, one second sensing electrode 130 (eg, the cut first sensing electrode 130 ) corresponds to the length into which the radiation pattern 160 is inserted in the active region or the sensing region in which the

sensing electrodes

110 and 130 are arranged. Only the length of 2 sensing electrodes) can be reduced.

Accordingly, it is possible to secure antenna radiation driving characteristics while minimizing a decrease in sensing sensitivity due to insertion of the antenna pattern 150 .

In some embodiments, the center line of the radiation pattern 160 (eg, a virtual center line extending from the transmission line 162 ) overlaps the cut second sensing electrode 130 in the second direction. can

Accordingly, while reducing the number of the second sensing electrodes 130 cut according to the insertion of the radiation pattern 160 , the antenna radiation disturbance from the electric field generated by the second sensing electrode 130 is substantially suppressed or avoided. can do.

In some embodiments, dummy patterns 170 may be distributed along with the second sensing electrodes 130 and the antenna pattern 150 on the upper surface of the base layer 100 . The dummy patterns 170 are arranged around the second sensing electrodes 130 and the antenna pattern 150 , and may be electrically and physically separated from the second sensing electrodes 130 and the antenna pattern 150 . .

Each of the dummy patterns 170 may have an island shape or a tile shape. The dummy patterns 170 may include substantially the same material as the second sensing electrode 130 , and may include, for example, a transparent conductive oxide such as ITO or IZO.

Some of the dummy patterns 170 may be provided as antenna dummy patterns 175 arranged around the antenna pattern 150 . The antenna dummy pattern 175 is arranged along the edge of the radiation pattern 160 , and may have a shape different from that of the dummy pattern 170 .

As the dummy patterns 170 are arranged around the second sensing electrodes 130 and the antenna pattern 150 , the regional deviation of the conductive pattern distribution on the upper surface of the base layer 100 may be reduced. Accordingly, the optical uniformity over the base layer 100 may be improved to reduce the electrode visibility phenomenon.

Referring to FIG. 8 , the first sensing electrode 110 overlapping the antenna pattern 150 in the thickness direction among the first sensing electrodes 110 may include an opening 112 therein. The opening 112 may be formed to overlap the antenna pattern 150 in a planar direction.

By removing a portion of the first sensing electrode 110 that overlaps with the antenna pattern 150 , radiation disturbance of the antenna pattern 150 by the first sensing electrode 110 may be suppressed.

In some embodiments, the first sensing electrode 110 may include a slit 114 formed at a position overlapping the second sensing electrode 130 in a planar direction.

For example, the slits 114 may be repeatedly formed along the second direction to form a slit row. In addition, the plurality of slit columns may be arranged along the first direction to overlap the second sensing electrodes 130 , respectively.

By forming the slits 114 and the openings 112 at positions overlapping the second sensing electrode 130 and the antenna pattern 150, respectively, it is possible to prevent a decrease in transmittance and an increase in reflectance due to the overlapping of the conductive layers in the vertical direction. have. Accordingly, it is possible to suppress the electrode visibility phenomenon while improving the overall transmittance of the antenna insertion electrode structure.

Referring to FIG. 9 , the radiation pattern 160 may include a mesh structure. For example, when the radiation pattern 160 includes a metal layer, a decrease in transmittance due to insertion of the antenna pattern 150 may be suppressed by employing the mesh structure.

In some embodiments, the transmission line 162 also includes the mesh structure and may be substantially integrally connected to the radiation pattern 160 .

A dummy mesh pattern 177 may be formed around the radiation pattern 160 . Through the dummy mesh pattern 177 , the uniformity of the distribution of conductive lines around the radiation pattern 160 may be improved, thereby suppressing visibility of the radiation pattern 160 .

For example, the dummy mesh pattern 177 may be disposed around the radiation pattern 160 , and the dummy pattern 170 may be distributed outside the dummy mesh pattern 177 .

In some embodiments, the signal pad 164 and the ground pattern 166 may have a solid metal pattern structure for reducing power supply resistance and for noise shielding efficiency. For example, the signal pad 164 and the ground pad 166 may be disposed in a peripheral area of the base layer 100 in which the second sensing electrode 130 is not disposed.

Referring to FIG. 10 , the image display apparatus may include a display panel 360 and the antenna insertion electrode structure 200 stacked on the display panel 360 according to the above-described exemplary embodiments.

The display panel 360 may include a display structure and an encapsulation layer 350 disposed on the panel substrate 300 . The display structure may include a pixel electrode 310 , a pixel defining layer 320 , a display layer 330 , a counter electrode 340 , and the like.

A pixel circuit including a thin film transistor (TFT) may be formed on the panel substrate 300 , and an insulating layer covering the pixel circuit may be formed. 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 area. 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 light emitting 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 a common electrode or a cathode of the image display device. An encapsulation layer 350 for protecting the display panel 360 may be stacked on the opposite electrode 340 .

In some embodiments, the display panel 360 and the antenna insertion electrode structure 200 may be coupled through the adhesive layer 260 .

In some embodiments, the antenna insertion electrode structure 200 may be directly laminated or formed on the encapsulation layer 350 . In this case, the adhesive layer 260 may be omitted.

A polarization layer 210 and a window substrate 230 may be sequentially stacked on the antenna insertion electrode structure 200 .

The polarizing layer 210 may include a coated polarizer or a polarizing plate. The coating-type polarizer may include a liquid crystal coating layer including a polymerizable liquid crystal compound and a dichroic dye. In this case, the polarizing layer 210 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.

The polarization layer 210 may be directly bonded to the one surface of the window substrate 230 or may be attached through the first adhesive layer 220 . The polarization layer 210 may be bonded to the antenna insertion electrode structure 200 through the second adhesive layer 220 .

The window substrate 230 includes, for example, a hard coating film or a glass substrate (eg, ultra-thin glass (UTG)), and in one embodiment, on the periphery of one side of the window substrate 230 . A light blocking pattern 235 may be formed in the light blocking pattern 235. The light blocking pattern 235 may include, for example, a color printing pattern, and may have a single-layer or multi-layer structure. A bezel part or a non-display area may be defined.

As shown in FIG. 10 , the window substrate 230 , the polarization layer 210 , and the antenna insertion electrode structure 200 may be sequentially disposed from the user's viewing side. In this case, since the

sensing electrodes

110 and 130 and the antenna patterns 150 of the antenna insertion electrode structure 200 are disposed under the polarization layer 210, the electrode visibility phenomenon can be more effectively prevented.

In an embodiment, the window substrate 230 , the antenna insertion electrode structure 200 , and the polarization layer 210 may be disposed in the order from the user's viewing side. In this case, since the antenna pattern 150 and the

sensing electrodes

110 and 130 are more adjacent to the display surface or the touch surface, radiation gain and sensing sensitivity may be improved.

The above-described window substrate 230 , the polarization layer 210 , and the antenna insertion electrode structure 200 may be combined as an integral unit to define the window stack 250 .

Referring to FIG. 11 , the base layer 100 of the image display device or the antenna insertion electrode structure 200 may include a display area DA and a peripheral area PA. The display area DA may correspond to an active area in which the

sensing electrodes

110 and 130 of the antenna insertion electrode structure 200 are disposed and touch sensing is substantially input/recognized.

The

sensing electrodes

110 and 130 and the antenna pattern 150 may be disposed on the display area DA.

Traces

120 and 140 may be disposed on the peripheral area PA. A signal pad 164 and a ground pad 166 of the antenna pattern 150 may also be disposed on the peripheral area PA.

In some embodiments, the

traces

120 and 140 extend to one end (eg, one end in the longitudinal direction) of the image display device or the antenna insertion electrode structure 200 and are traced on the one end. Distal ends of the

electrodes

120 and 140 may be electrically connected to the touch sensor driving integrated circuit (IC) chip 420 .

For example, a first flexible printed circuit board 410 is bonded on distal ends of the

traces

120 and 140 , and a touch sensor driving integrated circuit chip 420 is formed on the first flexible printed circuit board 410 . can be mounted.

The touch sensor driving integrated circuit chip 420 may be directly surface mounted on the first flexible printed circuit board 410 . Alternatively, a rigid printed circuit board may be additionally disposed between the first flexible printed circuit board 410 and the touch sensor driving integrated circuit chip 420 .

In some embodiments, the antenna driving IC chip 440 for applying power and driving signals to the antenna patterns 150 may be disposed adjacent to the other end opposite to the one end of the base layer 100 . For example, the radiation patterns of the antenna pattern 150 may be disposed in the end area A1 and/or the side area A2 adjacent to the other end of the display area DA.

The signal pad 164 and the ground pad 166 of the antenna pattern 150 may be disposed in the peripheral area PA adjacent to the end area A1 and/or the side area A2 . In some embodiments, the signal pad 164 and the ground pad 166 may be formed by patterning a portion of a guard line (eg, a touch sensor ground line) disposed on the peripheral area PA.

For example, a second flexible printed circuit board 430 bonded to the signal pad 164 included in the antenna pattern 150 is disposed on the other end, and the antenna is disposed on the second flexible printed circuit board 430 . A driving IC chip 440 may be mounted.

The antenna driving IC chip 440 may be directly surface mounted on the second flexible printed circuit board 430 . Alternatively, a rigid printed circuit board may be additionally disposed between the second flexible printed circuit board 430 and the antenna driving IC chip 440 .

As described above, the circuit connection may be designed to improve the mutual independence of touch sensing and antenna radiation by dividing the region of the image display device or the base layer 100 .

Claims

base layer;

first sensing electrodes and second sensing electrodes disposed on different layers with the base layer interposed therebetween; and

An antenna insertion electrode structure disposed on the same layer as the second sensing electrodes and including an antenna pattern including a radiation pattern disposed between the neighboring second sensing electrodes.
The method according to claim 1, wherein the first sensing electrodes extend in a first direction parallel to the upper surface of the base layer, the second sensing electrodes are parallel to the upper surface of the base layer and in a second direction perpendicular to the first direction Extending to, the antenna insertion electrode structure.
The antenna insertion electrode structure according to claim 2, wherein a center line of the radiation pattern overlaps one of the second sensing electrodes of the second sensing electrodes in the second direction.
The antenna insertion electrode structure of claim 3, wherein the second sensing electrode overlapping the center line of the radiation pattern and the second direction among the second sensing electrodes has a shorter length than neighboring second sensing electrodes. .
The antenna insertion electrode structure according to claim 1, further comprising dummy patterns arranged around the second sensing electrodes and the radiation pattern on the base layer.
The antenna insertion electrode structure of claim 5 , wherein the dummy patterns include an antenna dummy pattern disposed around the radiation pattern, and the antenna dummy pattern has a different shape from a dummy pattern around the second sensing electrodes.
The antenna insertion electrode structure of claim 1 , wherein a first sensing electrode overlapping the radiation pattern in a thickness direction among the first sensing electrodes includes an opening formed at a position where the radiation pattern is projected in a planar direction.
The antenna insertion electrode structure of claim 1 , wherein the first sensing electrodes include slits formed at positions overlapping the second sensing electrodes in a planar direction.
The antenna insertion electrode structure of claim 1, wherein the line widths of the first sensing electrodes are greater than the line widths of the second sensing electrodes.
The antenna insertion electrode structure of claim 1, further comprising a first trace connected to the first sensing electrodes and a second trace connected to the second sensing electrodes.
The antenna insertion electrode structure of claim 10 , wherein the first sensing electrodes and the second sensing electrodes include a transparent conductive oxide.
The antenna insertion electrode structure of claim 11 , wherein the second trace comprises a transparent conductive oxide pattern and a metal pattern sequentially stacked from the base layer.
The antenna insertion electrode structure of claim 12 , wherein the antenna pattern includes the same metal or alloy as the metal pattern of the second trace.
The method according to claim 10, wherein the antenna pattern further comprises a transmission line connected to one end of the radiation pattern and a signal pad connected to the end of the transmission line,

The signal pad is disposed so as not to overlap the second trace in the peripheral region of the base layer, the antenna insertion electrode structure.
display panel; and

An image display device comprising the antenna insertion electrode structure of claim 1 laminated on the display panel.
The image display device of claim 15 , further comprising a polarization layer disposed between the display panel and the antenna insertion electrode structure.