KR20170003022A - Touch window - Google Patents

Abstract

A touch window according to an embodiment includes: a substrate including a valid region and a non-valid region; A sensing part and a wiring part alternately arranged on the effective area; And a ground electrode disposed on the effective region.

Description

Touch window {TOUCH WINDOW}

An embodiment relates to a touch window.

[0002] In recent years, a touch window has been applied to input images in a manner of touching an input device such as a finger or a stylus to an image displayed on a display device in various electronic products.

The touch window is typically divided into a resistive touch window and a capacitive touch window. The resistance film type touch window detects the change of resistance according to the connection between the electrodes when the pressure is applied to the input device, and the position is detected. The capacitive touch window senses the change in capacitance between the electrodes when a finger touches them, and the position is detected. Considering the convenience of the manufacturing method and the sensing power, recently, in a small model, the electrostatic capacity method has attracted attention.

The touch window may include a sensing electrode on a substrate and a wiring electrode connected to the sensing electrode. The touch window may detect a change in capacitance when a region where the sensing electrode is disposed to detect a position.

At this time, the sensing electrodes and the wiring electrodes may be disposed on one surface of the substrate using one substrate or on one surface of each substrate using a plurality of substrates.

When the sensing electrodes and the wiring electrodes are disposed on one surface of the substrate using one substrate, the wiring electrodes can be drawn out in various directions. For example, the wiring electrodes can be arranged extending from the effective area to the non- .

In addition, according to the method of disposing the sensing electrode and the wiring electrode, there may be a portion where the distance between the sensing electrodes on the substrate is widened and a portion where the sensing electrode is narrowed, and a short circuit occurs between the sensing electrodes in the narrow portion.

Therefore, a touch window having a new structure capable of solving the above problems is required.

The embodiment attempts to provide a touch window with improved reliability.

A touch window according to an embodiment includes: a substrate including a valid region and a non-valid region; A sensing part and a wiring part alternately arranged on the effective area; And a ground electrode disposed on the effective region.

In the touch window according to the embodiment, the ground electrode may be disposed on the effective region of the substrate where the width of the sensing portions is narrowed.

Accordingly, the sensing electrodes are migrated between the ground electrodes at the narrowed width of the sensing units, so that the sensing electrodes can be prevented from being brought into contact with each other to cause a short circuit.

Accordingly, the touch window according to the embodiment can have improved reliability.

1 is a view for explaining positions of a sensing part and a wiring part of a touch window according to an embodiment.
2 is a plan view of a touch window according to an embodiment.
Fig. 3 is an enlarged view of area A in Fig.
4 is another plan view of a touch window according to an embodiment.
5 is an enlarged view of a region B in Fig.
FIGS. 6 to 8 are views for explaining an electrode forming process of the sensing electrode and / or the wiring electrode according to the embodiment.
9 is a view illustrating a touch device in which a touch window and a display panel are combined according to an embodiment.
10 to 13 are views showing an example of a touch device to which the touch device according to the embodiment is applied.

In the description of the embodiments, it is to be understood that each layer (film), area, pattern or structure may be referred to as being "on" or "under / under" Quot; includes all that is formed directly or through another layer. The criteria for top / bottom or bottom / bottom of each layer are described with reference to the drawings.

Also, when a part is referred to as being "connected" to another part, it includes not only a case of being "directly connected" but also a case of being "indirectly connected" with another member in between. Also, when an element is referred to as "comprising ", it means that it can include other elements, not excluding other elements unless specifically stated otherwise.

The thickness or the size of each layer (film), region, pattern or structure in the drawings may be modified for clarity and convenience of explanation, and thus does not entirely reflect the actual size.

Hereinafter, a touch window according to an embodiment will be described with reference to FIGS. 1 to 5. FIG.

1 to 5, a touch window according to an embodiment may include a substrate, a sensing electrode, a wiring electrode, a ground electrode, and a printed circuit board.

The substrate 100 may be rigid or flexible.

For example, the substrate 100 may comprise glass or plastic. In detail, the substrate 100 may include chemically reinforced / semi- toughened glass such as soda lime glass or aluminosilicate glass, or may include polyimide (PI), polyethylene terephthalate (PET) , Propylene glycol (PPG) polycarbonate (PC), or the like, or may include sapphire.

In addition, the substrate 100 may include an optically isotropic film. For example, the substrate 100 may include a cyclic olefin copolymer (COC), a cyclic olefin polymer (COP), a polycarbonate (PC), a light polymethyl methacrylate (PMMA), or the like.

Sapphire has excellent electrical properties such as dielectric constant, which not only greatly improves the speed of touch reaction but also can easily realize space touch such as hovering and is applicable as a cover substrate because of its high surface strength. Here, hovering means a technique of recognizing coordinates even at a small distance from the display.

Also, the substrate 100 may be curved with a partially curved surface. That is, the substrate 100 may have a flat surface in part, and may have a curved surface in part. In detail, the end of the substrate 100 may be curved with a curved surface, or may have a curved surface with a curvature.

In addition, the substrate 100 may be a flexible substrate having a flexible characteristic.

In addition, the substrate 100 may be a curved or a bended substrate. That is, the touch window including the substrate 100 may be formed to have a flexible, curved, or bent characteristic. Accordingly, the touch window according to the embodiment is easy to carry and can be changed into various designs.

The substrate 100 may include a cover substrate. Alternatively, a separate cover substrate may be further disposed on the substrate 100. Further, when a separate cover substrate is further disposed on the substrate 100, the substrate and the cover substrate may be laminated via an adhesive layer. Accordingly, since the cover substrate and the substrate can be separately formed, it can be advantageous in mass production of the touch window.

In the substrate 100, a valid region AA and a non-valid region UA may be defined.

The display may be displayed in the effective area AA and the display may not be displayed in the non-valid area UA disposed around the valid area AA.

In addition, the position of the input device (e.g., a finger or a stylus pen) can be sensed in at least one of the effective area AA and the non-valid area UA. When an input device such as a finger is brought into contact with such a touch window, a capacitance difference occurs at a portion where the input device is contacted, and a portion where such a difference occurs can be detected as the contact position.

An outer dummy layer (not shown) may be disposed on the ineffective area UA.

The outer dummy layer may be formed by applying a material having a predetermined color so that the wiring electrodes disposed on the ineffective area and the printed circuit board connecting the wiring electrodes to an external circuit can not be seen from the outside .

The outer dummy layer may have a color suitable for a desired appearance, and may include black or white pigment, for example, black or white. Or various color films can be used to display various color colors such as red, blue, and the like.

A desired logo can be formed on the outer dummy layer by various methods. Such an outer dummy layer can be formed by vapor deposition, printing, wet coating or the like.

The outer dummy layer may be disposed in at least one layer. For example, the outer dummy layers may be arranged in one layer or in at least two layers having different widths.

In addition, the outer dummy layer may be formed of a film. Accordingly, when the substrate 100 is flexible or has a curvature, an outer dummy layer can be easily formed on the cover substrate.

The outer dummy layer may be disposed on at least one of a first surface and a second surface of the substrate.

Referring to FIG. 1, the sensing unit 200 and the wiring unit 300 may be disposed on the substrate 100. In detail, the sensing unit 200 may be a region where the sensing electrodes are disposed, and the wiring unit 300 may be a region where the wiring electrodes are disposed.

The sensing part 200 and the wiring part 300 may be disposed on the effective area AA of the substrate. That is, the sensing electrode and the wiring electrode may be disposed on the effective area AA of the substrate.

2 to 4, the sensing unit 200 may include a sensing electrode.

The sensing electrode may include a first sensing electrode 210 and a second sensing electrode 220. In detail, the sensing electrode may include the first sensing electrode 210 and the second sensing electrode 220 disposed on the same side of the substrate 100.

The first sensing electrode 210 and the second sensing electrode 220 may be spaced apart from each other. That is, the first sensing electrode 2100 and the second sensing electrode 220 may be spaced apart from each other on the same surface of the substrate 100.

Accordingly, the first sensing electrode 210 and the second sensing electrode 220 may be disposed together on the same substrate. Accordingly, the thickness of the entire touch window can be reduced as compared with arranging the sensing electrodes on a separate substrate.

At least one of the first sensing electrode 210 and the second sensing electrode 220 may include a transparent conductive material so that electricity can flow without disturbing the transmission of light.

For example, at least one of the first sensing electrode 210 and the second sensing electrode 220 may be formed of indium tin oxide, indium zinc oxide, copper oxide ), Tin oxide, zinc oxide, titanium oxide, and the like. Accordingly, when manufacturing a touch window in which flexible and / or bending is implemented, the degree of freedom can be improved.

Alternatively, at least one of the first sensing electrode 210 and the second sensing electrode 220 may be a nanowire, a photosensitive nanowire film, a carbon nanotube (CNT), a graphene, a conductive polymer, And mixtures thereof. Accordingly, when manufacturing a touch window in which flexible and / or bending is implemented, the degree of freedom can be improved.

When nanocomposites such as nanowires or carbon nanotubes (CNTs) are used, they may be made of black. The color and reflectance can be controlled while securing the electric conductivity by controlling the content of the nano powder.

Alternatively, at least one of the first sensing electrode 210 and the second sensing electrode 220 may include various metals. For example, the sensing electrode 200 may be formed of one selected from the group consisting of Cr, Ni, Cu, Al, Ag, and Mo. Gold (Au), titanium (Ti), and alloys thereof. Accordingly, when manufacturing a touch window in which flexible and / or bending is implemented, the degree of freedom can be improved.

The sensing electrodes may be arranged in a mesh shape. For example, at least one of the first sensing electrode 210 and the second sensing electrode 220 may be disposed in a mesh shape.

The sensing electrodes may include a plurality of sub-electrodes disposed to intersect with each other, and the sensing electrodes may be disposed in a mesh shape as a whole by the sub-electrodes.

Since the sensing electrode has a mesh shape, the pattern of the sensing electrode can be made invisible on the effective area AA. That is, even if the sensing electrode is formed of metal, the pattern can be made invisible. In addition, the resistance of the touch window can be lowered even when the sensing electrode is applied to a touch window of a large size.

Referring to FIG. 2, the sensing electrode may include a mesh line LA formed by a plurality of sub-electrodes crossing each other. In addition, the sensing electrode 200 may include a mesh opening OA between the mesh lines LA.

The line width of the mesh line LA may be about 0.1 mu m to about 10 mu m. A mesh line having a line width of the mesh line LA of less than about 0.1 mu m may not be possible in the manufacturing process, and when the mesh line LA is more than about 10 mu m, the sensing electrode pattern may be visually recognized from outside and visibility may be deteriorated. Alternatively, the line width of the mesh line LA may be about 1 탆 to about 5 탆. Alternatively, the line width of the mesh line LA may be about 1.5 탆 to about 3 탆.

In addition, the thickness of the mesh line LA may be about 100 nm to about 500 nm. When the thickness of the mesh line LA is less than about 100 nm, the electrode resistance may increase and the electrical characteristics may be deteriorated. When the thickness of the mesh line LA is more than about 500 nm, the overall thickness of the touch window becomes thick, have. Preferably, the sensing electrode mesh line LA 'may have a thickness of about 150 nm to about 200 nm. More preferably, the thickness of the mesh line LA may be about 180 nm to about 200 nm.

A wiring electrode may be disposed in the wiring portion 300.

The wiring electrode may include a first wiring electrode 310 and a second wiring electrode 320. In detail, the wiring electrode may include the first wiring electrode 310 and the second wiring electrode 320 disposed on the same surface of the substrate 100.

The first wiring electrode 310 and the second wiring electrode 320 may include a conductive material. For example, the first wiring electrode 310 and the second wiring electrode 320 may include the same or similar materials as the sensing electrodes described above.

In addition, the first wiring electrode 310 and the second wiring electrode 320 may be arranged in a mesh shape like the sensing electrode described above.

The first wiring electrode 310 and the second wiring electrode 320 are connected to the first sensing electrode 210 and the second sensing electrode 220 on the effective area AA of the substrate 100, .

The printed circuit board 400 may be connected to the wiring electrodes. For example, the first wiring electrode 310 and the second wiring electrode 320 may be connected to the printed circuit board 400 on the ineffective area UA of the substrate 100.

One end of the first wiring electrode 310 is connected to the first sensing electrode 210 on the effective area AA and the other end of the first wiring electrode 310 is connected to the non- (Not shown).

One end of the second wiring electrode 320 is connected to the second sensing electrode 220 on the effective area AA and the other end of the second wiring electrode 320 is connected to the non- And may be connected to the printed circuit board 400.

That is, the first wiring electrode 310 and the second wiring electrode 320 may extend in the direction of the ineffective area from the effective area, and may be connected to the printed circuit board 400.

A driver chip may be mounted on the printed circuit board 400 and may be connected to the wiring electrode connected to the sensing electrode to perform an operation according to a touch signal sensed by the sensing electrode.

In addition, the printed circuit board 400 may include a flexible printed circuit board (FPCB).

The sensing unit 200 and the wiring unit 300 may be alternately arranged on the effective area AA of the substrate. That is, a plurality of sensing units 200 and a plurality of wiring units 300 may be disposed on the effective area AA of the substrate, and the sensing unit 200 and the wiring units 300 may be alternately .

Referring to FIG. 1, a plurality of sensing units and a plurality of wiring units may be disposed on the effective area AA of the substrate. For example, the first sensing unit 200a, the second sensing unit 200b, the third sensing unit 200c, and the fourth sensing unit 200d may be disposed on the effective area AA of the substrate.

The first wiring portion 300a, the second wiring portion 300b, the third wiring portion 300c, and the fourth wiring portion 300d may be disposed on the effective area AA of the substrate.

The first wiring part 300a is disposed between the first sensing part 200a and the second sensing part 200b and the second wiring part 300a is disposed between the first sensing part 200a and the second sensing part 200b, 300b are disposed between the second sensing unit 200b and the third sensing unit 200c and the third wiring unit 300c is disposed between the third sensing unit 200c and the fourth sensing unit 200d As shown in FIG.

The width W1 of the sensing unit 200 may increase as the distance from the printed circuit board 400 increases. In addition, the width W2 of the wiring part 300 can be reduced as the distance from the printed circuit board 400 increases.

For example, the sensing unit 200 may have a triangular shape with a smaller width as the distance from the printed circuit board 400 increases. As the wiring unit 300 is further away from the printed circuit board 400, It may be a triangular shape having a larger width. That is, the sensing unit 200 and the wiring unit 300 may be formed in a rectangular shape as a whole.

A distance d1 between the first sensing unit 200a and the second sensing unit 200b, a distance d2 between the second sensing unit 200b and the third sensing unit 200c, The distance d3 between the third sensing unit 200c and the fourth sensing unit 200d may be reduced as the distance d3 from the printed circuit board is increased.

Conversely, the distance D1 between the first wiring portion 300a and the second wiring portion 300b, the distance D2 between the second wiring portion 300b and the third wiring portion 300c, The distance D3 between the third wiring portion 300c and the fourth wiring portion 300d may increase as the distance from the printed circuit board increases.

The ground electrode 500 may be disposed on the substrate 100. For example, the ground electrode 500 may be disposed on the effective area AA of the substrate.

The ground electrode 500 may include a first ground electrode 510 and a second ground electrode.

The first ground electrode 510 may be disposed at the edge of the effective area AA of the substrate.

Referring to FIGS. 1 to 4, the effective area AA may include first to fourth edges connected to each other. In detail, the effective area AA includes a first edge 110 facing the printed circuit board 400, a fourth edge 140 disposed opposite to the first edge 110, And a second edge 120 and a third edge 130 connecting the first edge 110 and the fourth edge 140.

The first ground electrode 510 may be disposed on the fourth edge 140.

The first ground electrode 510 may extend from the second edge 120 to the third edge 130 and may be disposed at the fourth edge 140.

The second ground electrode 520 may be disposed between the sensing units in the effective area AA of the substrate.

For example, the second ground electrode 520 may be connected between the first sensing unit 200a and the second sensing unit 200b, between the second sensing unit 200b and the third sensing unit 200c, And between the third sensing unit 200c and the fourth sensing unit 200d.

The second ground electrode 520 may extend from the fourth edge 140 to the first edge 110.

1 and 2, the second ground electrode 520 is connected between the first sensing unit 200a and the second sensing unit 200b, between the second sensing unit 200b and the third sensing unit 200b, And may extend partially in the direction of the first edge 110 from the fourth edge 140 between the sensing portion 200c and the third sensing portion 200c and the fourth sensing portion 200d. have.

3 and 4, the second ground electrode 520 is connected between the first sensing unit 200a and the second sensing unit 200b, between the second sensing unit 200b and the second sensing unit 200b, And the first sensing unit 200c and between the third sensing unit 200c and the fourth sensing unit 200d in the direction of the first edge 110 from the fourth edge 140, And extend to the edge.

The first ground electrode 510 and the second ground electrode 520 may include the same or similar materials as the sensing electrode or the wiring electrode described above.

The first ground electrode 510 and the second ground electrode 520 may have the same or similar width as the width of the wiring electrode.

The first ground electrode 510 and the second ground electrode 520 may be connected to each other. That is, the first ground electrode 510 and the second ground electrode 520 may be integrally formed.

In the touch window according to the embodiment, a ground electrode may be disposed between the sensing units. Accordingly, it is possible to prevent migration from occurring between the sensing electrodes adjacent to the fourth edge.

That is, depending on the shapes of the sensing unit and the wiring unit, the sensing electrodes adjacent to the fourth edge of the effective area may be disposed adjacent to each other, so that the ionized metal between the sensing electrodes moves to the cathode, Migration may occur, which may result in a short circuit due to migration between the sensing electrodes adjacent to each other, and the efficiency and reliability of the touch panel may be deteriorated.

Accordingly, in the touch window according to the embodiment, the ground electrode is disposed between the sensing units, thereby preventing the migration between the sensing electrodes.

Accordingly, the touch window according to the embodiment can prevent the short-circuit between the sensing electrodes, thereby improving the overall reliability.

FIGS. 5 to 7 are views for explaining an electrode forming process of the sensing electrode and / or the wiring electrode according to the embodiment.

5, a sensing electrode and / or a wiring electrode according to an embodiment includes a metal layer M disposed on a front surface of a substrate 100, and the metal layer M is etched in a mesh shape, Can be formed. For example, a metal layer M such as copper (Cu) is deposited on the entire surface of a substrate 100 such as poly (ethylene terephthalate) (PET), and the copper layer is etched to form an embossed mesh A copper metal mesh electrode can be formed.

6, the sensing electrode and / or the wiring electrode according to the embodiment may be formed by forming a resin layer R including a UV resin or a thermosetting resin layer on the substrate 100, ), A metal paste (MP) can be filled in the depressed pattern. At this time, the engraved pattern of the resin layer can be formed by imprinting a mold having a relief pattern.

The metal paste 340 may be a metal paste containing at least one metal selected from the group consisting of Cr, Ni, Cu, Al, Ag, Mo, and alloys thereof. Accordingly, by filling the metal paste in the mesh-shaped intaglio pattern P and curing it, a mesh-shaped metal mesh electrode can be formed

7, the sensing electrode and / or the wiring electrode according to the embodiment may be formed by forming a resin layer R including a UV resin or a thermosetting resin layer on the substrate 100, ), A metal can be sputtered on the resin layer.

At this time, the bump pattern of the nanopattern and the micro pattern can be formed by imprinting a mold having an engraved pattern.

Subsequently, the metal layer (M) formed on the nano pattern (P1) and the micro pattern (P1) is etched to remove only the metal layer formed on the nano pattern, and only the metal layer formed on the micro pattern is left, An electrode can be formed.

At this time, when the metal layer is etched, a difference in etching rate may occur depending on the difference in bonding area between the nano pattern 211 and the micro pattern 212 and the metal layer. That is, since the area of the contact between the micropattern and the metal layer is larger than the area of contact between the nano pattern and the metal layer, the metal layer M formed on the micropattern is less etched, The metal layer remains and the metal layer formed on the nano pattern is etched and removed, so that a metal electrode of a micropatterned embossed mesh shape can be formed on the substrate 100.

The sensing electrode and / or the wiring electrode of the touch window according to the embodiment may be formed of a mesh-shaped electrode including a metal layer as shown in Figs. 5 to 7 described above.

Hereinafter, with reference to FIG. 8, a touch device in which the above-described touch window and the display panel are combined will be described.

Referring to FIG. 8, the touch device according to the embodiment may include a display panel 800 and a touch window disposed on the display panel. For example, the display panel and the touch window may be bonded together through an adhesive layer 700 including an optical transparent adhesive (OCA) or the like.

8, the cover substrate 101 and the substrate 100 are bonded to each other through an adhesive layer 700, and the cover substrate 101 and the substrate 100 are bonded to each other on the substrate 100, 1 and the display panel 800 are bonded to each other through the adhesive layer 700. However, the present invention is not limited thereto, The cover substrate 101 may be omitted.

When the display panel 800 is a liquid crystal display panel, the display panel 800 includes a first substrate 810 including a thin film transistor (TFT) and a pixel electrode, a second substrate 810 including color filter layers, The substrate 820 may be formed as a structure in which the liquid crystal layer is sandwiched between the substrates.

The display panel 800 may include a thin film transistor, a color filter, and a black matrix formed on a first substrate 810 and a second substrate 820 on the first substrate 810 Or a color filter on transistor (COT) structure. That is, a thin film transistor may be formed on the first substrate 810, a protective film may be formed on the thin film transistor, and a color filter layer may be formed on the protective film. In addition, a pixel electrode is formed on the first substrate 810 in contact with the thin film transistor. At this time, in order to improve the aperture ratio and simplify the mask process, the black matrix may be omitted, and the common electrode may be formed to serve also as the black matrix.

In addition, when the display panel 800 is a liquid crystal display panel, the display device may further include a backlight unit that provides light from the back surface of the display panel 800. [

When the display panel 800 is an organic light emitting display panel, the display panel 800 may include a self-luminous element that does not require a separate light source. In the display panel 800, a thin film transistor is formed on a first substrate 810, and an organic light emitting device that contacts the thin film transistor may be formed. The organic light emitting device may include an anode, a cathode, and an organic light emitting layer formed between the anode and the cathode. The organic light emitting device may further include a second substrate 820 serving as an encapsulation substrate for encapsulation.

Hereinafter, an example of a display device to which a touch window according to the above-described embodiments is applied will be described with reference to FIGS. 9 to 12. FIG.

Referring to Fig. 9, a mobile terminal is shown as an example of a touch device device. The mobile terminal may include a valid area AA and a non-valid area UA. The effective area AA senses a touch signal by touching a finger or the like, and a command icon pattern part and a logo are formed on the non-valid area.

Referring to FIG. 10, the touch window may include a flexible flexible touch window. Accordingly, the touch device device including the same may be a flexible touch device device. Therefore, the user can bend or bend by hand.

Referring to FIG. 11, such a touch window can be applied not only to a touch device such as a mobile terminal, but also to a car navigation system.

Further, referring to Fig. 12, such a touch window can also be applied to a vehicle. That is, the touch window can be applied to various parts to which a touch window can be applied in the vehicle. Therefore, not only PND (Personal Navigation Display) but also dashboard can be applied to implement CID (Center Information Display). However, the embodiment is not limited thereto, and it goes without saying that such a touch device device can be used for various electronic products.

The features, structures, effects and the like described in the foregoing embodiments are included in at least one embodiment of the present invention and are not necessarily limited to one embodiment. Further, the features, structures, effects, and the like illustrated in the embodiments may be combined or modified in other embodiments by those skilled in the art to which the embodiments belong. Therefore, it should be understood that the present invention is not limited to these combinations and modifications.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limiting the scope of the present invention. It can be seen that various modifications and applications are possible. For example, each component specifically shown in the embodiments may be modified and implemented. It is to be understood that the present invention may be embodied in many other specific forms without departing from the spirit or essential characteristics thereof.

Claims (13)

A substrate including a valid region and a non-valid region;
At least one sensing part and at least one wiring part alternately arranged on the effective area; And
And a ground electrode disposed on the effective area. The method according to claim 1,
A sensing electrode is disposed on the sensing unit,
And a wiring electrode connected to the sensing electrode is disposed on the wiring portion. 3. The method of claim 2,
One end of the wiring electrode is connected to the sensing electrode,
And the other end of the wiring electrode is connected to the printed circuit board. The method of claim 3,
Wherein the sensing unit includes a first sensing unit and a second sensing unit that are spaced apart from each other,
The wiring portion includes a first wiring portion connected to the first sensing portion; And a second wiring part connected to the second sensing part,
Wherein a distance between the first sensing unit and the second sensing unit increases as the distance from the printed circuit board increases. The method according to claim 1,
Wherein the sensing unit includes a plurality of sensing units,
Wherein the ground electrode is disposed between the sensing units. 5. The method of claim 4,
Wherein the ground electrode is disposed between the first sensing unit and the second sensing unit. The method according to claim 6,
The width of the sensing portion increases as the distance from the printed circuit board increases,
And the width of the wiring portion decreases as the distance from the printed circuit board increases. 5. The method of claim 4,
The effective area may include:
A first edge facing the printed circuit board;
A fourth edge disposed opposite the first edge; And
And a second, third edge connecting the first edge and the fourth edge. 9. The method of claim 8,
The ground electrode includes:
A first ground electrode disposed at the fourth edge; And
And a second ground electrode disposed between the first sensing unit and the second sensing unit. 10. The method of claim 9,
Wherein the first ground electrode and the second ground electrode are integrally formed. 3. The method of claim 2,
Wherein at least one of the sensing electrode and the wiring electrode is arranged in a mesh shape. 3. The method of claim 2,
Wherein the sensing electrode includes a first sensing electrode and a second sensing electrode spaced from each other,
Wherein the first sensing electrode and the second sensing electrode are disposed on the same side of the substrate. 3. The method of claim 2,
And the wiring electrode is disposed extending from the effective region toward the non-valid region.

Images