KR20160136830A

KR20160136830A - Touch window

Info

Publication number: KR20160136830A
Application number: KR1020150070910A
Authority: KR
Inventors: 장우영
Original assignee: 엘지이노텍 주식회사
Priority date: 2015-05-21
Filing date: 2015-05-21
Publication date: 2016-11-30

Abstract

A touch window according to an embodiment includes: a substrate including a valid region and a non-valid region; A sensing electrode on the effective area; And at least one of the sensing electrode and the wiring electrode includes a first electrode and a second electrode disposed between the first electrode and the wiring electrode on the ineffective region, The second electrode includes different materials.

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.

Indium tin oxide (ITO), which is most widely used as a transparent electrode in such a touch window, is expensive and physically easily hit by bending and warping of the substrate, and the characteristics of the electrode are deteriorated. As a result, flexible) devices. In addition, when applied to a large size touch panel, a problem arises due to high resistance.

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

The embodiment attempts to provide a touch window having improved electrical characteristics.

The touch window according to the embodiment can improve the electrical characteristics of the touch window. In detail, the touch window according to an embodiment may include a sensing electrode or a wiring electrode including a first electrode and a second electrode including different materials.

That is, since the first electrode having a large cross-sectional area includes a transparent conductive material and the second electrode having a small cross-sectional area includes a metal, the resistance of the sensing electrode or the wiring electrode can be reduced as compared with the case where only the first electrode is used.

In addition, since the first electrode and the second electrode are disposed in contact with each other so as to be electrically connected to each other, even if an electrical short-circuit occurs in the first electrode or the second electrode, Or the wiring electrode can be prevented from being short-circuited.

Accordingly, the touch window according to the embodiment can improve the electrical characteristics and reliability of the touch window.

1 is a plan view of a touch window according to an embodiment.
Fig. 2 is an enlarged view of area A in Fig.
FIG. 3 and FIG. 4 are views showing the region AA 'of FIG.
Fig. 5 is another view showing an enlarged view of the area A in Fig.
FIG. 6 is a view showing the BB 'region of FIG. 5 cut away. FIG.
FIGS. 7 to 10 are views for explaining various types of touch windows according to the embodiment.
11 to 13 are views for explaining a touch device in which a touch window and a display panel are combined according to an embodiment.
14 to 17 are views showing an example of a touch device device to which a touch window 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.

Referring to FIG. 1, a touch window according to an embodiment may include a substrate 100, an electrode unit, and a printed circuit board 400.

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 be partially flat and partially curved with a curved surface. In detail, the end of the substrate 100 may have a curved surface, or may have a curved surface with a random curvature, and may be curved or bent.

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.

A sensing electrode and a wiring electrode may be disposed on the substrate 100. That is, the substrate may be a supporting substrate.

The substrate 100 may include a cover substrate. That is, the sensing electrode and the wiring electrode may be supported by the cover substrate.

Alternatively, a separate cover substrate may be further disposed on the substrate 100. That is, the sensing electrode and the wiring electrode are supported by the substrate, and the substrate and the cover substrate can be directly or indirectly bonded through the adhesive layer.

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 the like) can be sensed in at least one of the valid area AA and the ineffective 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.

The sensing electrode 200 may be disposed on the substrate 100. For example, the sensing electrode 200 may be disposed on the effective region of the substrate 100.

The sensing electrode 200 may include a transparent conductive material so that electricity can flow without interfering with transmission of light. For example, the sensing electrode may be formed of indium tin oxide (ITO), indium zinc oxide oxide, oxide, copper oxide, tin oxide, zinc oxide, titanium oxide, and the like.

Alternatively, the sensing electrode 200 may include a nanowire, a photosensitive nanowire film, a carbon nanotube (CNT), a graphene, a conductive polymer, or a mixture thereof.

When using such a nanowire or a nanocomposite such as a carbon nanotube (CNT), the nanocomposite may be made of black, and the color and reflectance can be controlled while securing the electric conductivity by controlling the content of the nano powder.

Alternatively, the sensing electrode 200 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.

2 to 4, the sensing electrode 200 may include a first electrode 210 and a second electrode 220.

The first electrode 210 and the second electrode 220 may be alternately arranged. For example, the second electrode 220 may be disposed between the first electrodes 210.

The first electrode 210 may include a plurality of sub first electrodes 211. In addition, the second electrode 220 may include a plurality of second electrodes 221. The sub first electrodes 211 may be disposed between the sub second electrodes 221. Alternatively, the sub second electrodes 221 may be disposed between the sub first electrodes 211.

The first electrode 210 and the second electrode 220 may include a conductive material. In addition, the first electrode 210 and the second electrode 220 may include different materials.

For example, the first electrode 210 may include a transparent conductive material. In detail, the first electrode 210 may include at least one selected from the group consisting of indium tin oxide, indium zinc oxide, copper oxide, tin oxide, zinc oxide, And may include at least one transparent conductive material of titanium oxide.

In addition, the second electrode 220 may include a metal. For example, the second electrode 220 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.

That is, the first electrode 210 and the second electrode 220 may include different conductive materials.

The second electrode 220 may be disposed in a mesh shape. In detail, the second electrode 220 may be disposed as a mesh-shaped mesh line, and a mesh opening may be formed between the second electrodes 220.

The second electrode 220 may be disposed on the mesh opening. Accordingly, the first electrode 210 and the second electrode 220 may be alternately arranged.

The line width of the second electrode 220 may be about 0.1 탆 to about 10 탆. If the line width of the second electrode 220 is less than about 0.1 탆, it may not be possible in the manufacturing process or a short circuit of the mesh line may occur. If the line width of the second electrode 220 is greater than about 10 탆, the second electrode 220 may be visually recognized from the outside, thereby reducing visibility. Preferably, the line width of the second electrode 220 may be about 0.5 [mu] m to about 7 [mu] m. More preferably, the line width of the second electrode 220 may be about 1 [mu] m to about 3.5 [mu] m.

In addition, the mesh opening may be formed in various shapes. For example, the mesh opening may have various shapes such as a square shape, a diamond shape, a pentagon, a hexagonal polygonal shape, or a circular shape. Further, the mesh opening may be formed in a regular shape or a random shape.

Since the second electrode 220 has a mesh shape, it is possible to prevent the pattern of the sensing electrode from being visible on the display region as an effective region. 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.

In addition, the second electrodes 220 are arranged in a mesh shape so that they can be connected to each other as a whole. That is, the second electrode 220 may be integrally formed. In addition, since the first electrodes 210 are disposed on the mesh openings, they can be disposed separately from each other. That is, the plurality of sub first electrodes 211 may be separated from each other by the sub second electrodes 221, and may be spaced apart from each other.

The first electrode 210 and the second electrode 220 may have different widths. In detail, the width W1 of the first electrode 210 may be greater than the width W2 of the second electrode 220.

The first electrode 210 and the second electrode 220 may have different thicknesses. In detail, the thickness T1 of the first electrode 210 may be greater than the thickness T2 of the second electrode 220. Alternatively, the thickness T2 of the second electrode 220 may be greater than the thickness T1 of the first electrode 210.

In addition, the first electrode 210 and the second electrode 220 may be arranged in different cross-sectional areas. In detail, the cross-sectional area of the first electrode 210 may be larger than the cross-sectional area of the second electrode 220.

The first electrode 210 and the second electrode 220 may be disposed in contact with each other. For example, the side surface of the first electrode 210 and the side surface of the second electrode 220 may be disposed in contact with each other. Accordingly, the first electrode 210 and the second electrode 220 may be electrically connected to each other.

An anti-reflection layer (400) may be further disposed on the second electrode (220). For example, the anti-reflection layer 400 may be disposed on at least one of the upper surface and the lower surface of the electrode layer 222.

The antireflection layer 400 is disposed on the upper surface or the lower surface of the second electrode 220 to prevent oxidation of the second electrode 220 formed of a metal and to prevent reflection due to total reflection characteristics of the metal.

Alternatively, the antireflection layer 400 may be disposed on the lower surface of the second electrode 220 to enhance adhesion between the second electrode 220 and the substrate 100.

The anti-reflection layer 400 may be formed of a blackening material. The blackening material may comprise a black metal oxide. For example, the blackening material may include at least one of CuO, CrO, FeO, and Ni2O3, but is not limited thereto. The blackening material may be any black-based material capable of suppressing the reflectivity of the metal electrode have.

The second electrode 220 and the anti-reflection layer 400 may be formed simultaneously or separately.

The wiring electrode 300 may be disposed on the substrate 100. In detail, the wiring electrode 300 may be disposed on a non-effective region of the substrate 100.

The wiring electrode 300 is connected to the sensing electrode 200 and extends in the direction of the non-effective area UA to be connected to the printed circuit board on the non-effective area UA.

The printed circuit board may include a driving chip. Accordingly, the touch signal sensed by the sensing electrode 200 is transmitted through the wiring electrode 300, and the touch signal is transmitted to the driving chip to perform an operation according to the touch.

The wiring electrode 300 may include the same or similar material as the sensing electrode described above. In detail, the wiring electrodes 300 may include a first electrode and a second electrode which are arranged alternately with each other like the above-described sensing electrodes and include different materials.

Hereinafter, a touch window according to another embodiment will be described with reference to FIGS. 1, 5, and 6. FIG. In the description of the touch window according to another embodiment, description of the same or similar components to those of the previously described embodiment will be omitted.

1, 4 and 5, a touch window according to another embodiment includes a sensing electrode 200 and a wiring electrode 300.

The sensing electrode 200 and / or the wiring electrode 300 may include a first electrode 210 and a second electrode 220.

In the touch window according to another embodiment, the first electrode 210 and the second electrode 220 may be alternately arranged. In detail, the first electrode 210 and the second electrode 220 may extend in the same direction. For example, the first electrode 210 and the second electrode 220 may be arranged in a bar shape.

That is, the first electrode 210 and the second electrode 220 may extend in one direction and be disposed in contact with each other.

The following configuration is the same as or similar to the above-described embodiment, and therefore, the following description is omitted.

The touch window according to the above-described embodiments can be applied to various types of touch windows depending on the position of the sensing electrode.

Hereinafter, the present invention will be described in more detail with reference to examples and comparative examples. These embodiments are merely illustrative of the present invention in order to explain the present invention in more detail. Therefore, the present invention is not limited to these embodiments.

Example

A touch window was prepared by disposing the sensing electrodes on the effective region of the substrate and disposing the wiring electrodes on the effective region and the non-effective region so as to be connected to the sensing electrode on the effective region and the printed circuit board on the non-effective region.

At this time, the sensing electrode includes indium tin oxide (ITO), and a mesh pattern is formed on the indium tin oxide to fill the pattern with silver (Ag) paste.

Then, the resistance of the sensing electrode was measured.

Comparative Example

A touch window was fabricated in the same manner as the example except that the sensing electrode only contained indium tin oxide (ITO).

Sample 1 Sample 2 Sample 3 Sample 4 Sample 5 Sample 6 Sample 7 Average Comparative Example 17.1 ㏀ 17.2 k 16.6㏀ 17.5 kΩ 17.3㏀ 17.4㏀ 17.6 kg 17.2 k Example 12.3㏀ 12.5 kΩ 12.9㏀ 12.4㏀ 13.1 ㏀ 12.3㏀ 12.8 kg 12.6 kg

Referring to Table 1, it can be seen that the electrode resistance of the sensing electrode according to the embodiment is lower than that of the sensing electrode according to the comparative example.

That is, the touch window according to the embodiment can reduce the overall resistance of the sensing electrode by disposing the metal electrode that cancels the resistance in the indium tin oxide.

Therefore, the touch window according to the embodiment can reduce the electrode resistance and improve the electrical characteristics.

Referring to FIG. 7, a touch window according to an embodiment may include a substrate 100 and a first sensing electrode 201 and a second sensing electrode 202 on the substrate 100.

The first sensing electrode 201 may be disposed extending in one direction on the effective area AA of the substrate 100. In detail, the first sensing electrode 201 may be disposed on one side of the substrate 100.

The second sensing electrode 202 may be disposed on one side of the substrate 100 while extending in a direction different from the one direction on the effective area AA of the substrate 100. That is, the first sensing electrode 201 and the second sensing electrode 202 may extend in different directions on the same surface of the substrate 100.

The first sensing electrode 201 and the second sensing electrode 202 may be insulated from each other on the substrate 100. A plurality of first unit sensing electrodes constituting the first sensing electrode 201 are connected to each other and a plurality of second unit sensing electrodes constituting the second sensing electrode 202 are spaced apart from each other . The second unit sensing electrodes are connected to each other by a bridge electrode 203. An insulating layer 205 is disposed on a portion where the bridge electrode 203 is disposed, The electrodes 202 can be shorted to each other.

Accordingly, the first sensing electrode 201 and the second sensing electrode 202 may be isolated from each other on the same surface of the substrate 100, that is, on the same surface of the effective area AA, have.

The print layer 500 may be disposed on the ineffective area UA of the substrate 100.

The substrate 100 may be a cover substrate. That is, the first sensing electrode 201 and the second sensing electrode 202 may be disposed on the same side of the cover substrate. Alternatively, a separate cover substrate may be further disposed on the substrate 100.

The first wiring electrode 301 and the second wiring electrode 302 disposed in the ineffective area UA may be connected to the first sensing electrode 201 and the second sensing electrode 202, respectively.

8, another type of touch window includes a cover substrate 101 and a substrate 100, and includes a first sensing electrode 201 on the cover substrate 101, a second sensing electrode on the substrate 100, Electrode 202 may be included.

A first sensing electrode 201 extending in one direction and a first wiring electrode 301 connected to the first sensing electrode 201 are disposed on one surface of the cover substrate 101, A second sensing electrode 202 extending in a direction different from the first direction and a second wiring electrode 302 connected to the second sensing electrode 202 may be disposed on one side of the first sensing electrode 202.

Alternatively, the sensing electrode may not be disposed on the cover substrate 101, but the sensing electrode may be disposed on both sides of the substrate 100.

A first sensing electrode 201 extending in one direction and a first wiring electrode 301 connected to the first sensing electrode 201 are disposed on one surface of the substrate 100, A second sensing electrode 202 extending in a direction different from the first direction and a second wiring electrode 302 connected to the second sensing electrode 202 may be disposed on the other surface of the first sensing electrode 202.

9, the touch window according to another type includes a cover substrate 101, a first substrate 101 and a second substrate 102, and a first sensing electrode on the first substrate 101 and a second sensing electrode And a second sensing electrode on the second substrate 102.

In detail, a first sensing electrode 201 extending in one direction and a first wiring electrode 301 connected to the first sensing electrode 201 are disposed on one surface of the first substrate 101, A second sensing electrode 202 extending in a direction different from the first direction and a second wiring electrode 302 connected to the second sensing electrode 202 may be disposed on one surface of the substrate 102.

Referring to FIG. 10, another type of touch window may include a substrate 100, a first sensing electrode 201 on a substrate, and a second sensing electrode 202.

The first sensing electrode 201 and the second sensing electrode 202 may be disposed on the same side of the substrate 100. For example, the first sensing electrode 201 and the second sensing electrode 202 may be spaced apart from each other on the same surface of the substrate 100.

The first and second sensing electrodes 201 and 202 may include a first wiring electrode 301 connected to the first sensing electrode 201 and a second wiring electrode 302 connected to the second sensing electrode 202, 301 may be disposed on the effective region and the ineffective region of the substrate 100 and the second wiring electrode 302 may be disposed on the ineffective region of the substrate 100. [

The touch window described above can be applied to a touch device in combination with a display panel. For example, the touch window may be coupled to the display panel by an adhesive layer.

Referring to FIG. 11, the touch device according to the embodiment may include a touch window disposed on the display panel 900.

11, the touch device may be formed by combining the substrate 100 and the display panel 900. Referring to FIG. The substrate 100 and the display panel 900 may be bonded to each other through an adhesive layer 800. For example, the substrate 100 and the display panel 900 may be bonded to each other through an adhesive layer 800 including an optical transparent adhesive (OCA, OCR).

The display panel 900 may include a first substrate 910 and a second substrate 920.

When the display panel 900 is a liquid crystal display panel, the display panel 900 includes a first substrate 910 including a thin film transistor (TFT) and a pixel electrode, a second substrate 910 including color filter layers, The substrate 920 may be formed as a structure in which the liquid crystal layer is sandwiched between the substrates.

In addition, the display panel 900 may include a thin film transistor, a color filter, and a black matrix formed on a first substrate 910 and a second substrate 920 between the first substrate 910 Or a color filter on transistor (COT) structure. That is, a thin film transistor may be formed on the first substrate 910, 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 that is in contact with the thin film transistor is formed on the first substrate 910. 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 900 is a liquid crystal display panel, the display device may further include a backlight unit for providing light from the back surface of the display panel 900.

When the display panel 900 is an organic light emitting display panel, the display panel 900 includes a self-luminous element that does not require a separate light source. In the display panel 900, a thin film transistor is formed on a first substrate 910, and an organic light emitting element which is in contact with the thin film transistor is 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. Further, the organic light emitting device may further include a second substrate 920 serving as an encapsulation substrate for encapsulation.

Referring to FIG. 12, the touch device according to the embodiment may include a touch window formed integrally with the display panel 900. That is, the substrate supporting at least one sensing electrode may be omitted.

In detail, at least one sensing electrode may be disposed on at least one surface of the display panel 900. That is, at least one sensing electrode may be formed on at least one surface of the first substrate 910 or the second substrate 920.

At this time, at least one sensing electrode may be formed on the upper surface of the substrate disposed above.

Referring to FIG. 16, a first sensing electrode 201 may be disposed on one side of the substrate 100. Also, a first wiring connected to the first sensing electrode 201 may be disposed. In addition, the second sensing electrode 202 may be disposed on one surface of the display panel 900. In addition, a second wiring connected to the second sensing electrode 202 may be disposed.

An adhesive layer 800 may be disposed between the substrate 100 and the display panel 900 so that the cover substrate and the display panel 900 may be bonded to each other.

Further, the substrate 100 may further include a polarizer. The polarizing plate may be a linear polarizing plate or an external light reflection preventing polarizing plate. For example, when the display panel 900 is a liquid crystal display panel, the polarizer may be a linear polarizer. In addition, when the display panel 900 is an organic light emitting display panel, the polarizing plate may be an external light reflection preventing polarizer.

The touch device according to the embodiment may omit at least one substrate supporting the sensing electrode. As a result, a touch device with a thin thickness and light weight can be formed.

Referring to FIG. 13, the touch device according to the embodiment may include a touch window formed integrally with the display panel 900. That is, the substrate supporting at least one sensing electrode may be omitted.

For example, a sensing electrode serving as a sensor for sensing a touch disposed in the effective area and a wiring for applying an electrical signal to the sensing electrode may be formed on the inner side of the display panel. In detail, at least one sensing electrode or at least one wiring may be formed inside the display panel.

The display panel includes a first substrate 910 and a second substrate 920. At least one of the first sensing electrode 210 and the second sensing electrode 220 is disposed between the first substrate 910 and the second substrate 920. That is, at least one sensing electrode may be disposed on at least one surface of the first substrate 910 or the second substrate 920.

Referring to FIG. 13, a first sensing electrode 201 may be disposed on one surface of the substrate 100. Also, a first wiring connected to the first sensing electrode 201 may be disposed. Also, a second sensing electrode 202 and a second wiring may be formed between the first substrate 910 and the second substrate 920. That is, the second sensing electrode 202 and the second wiring may be disposed on the inner side of the display panel, and the first sensing electrode 201 and the first wiring may be disposed on the outer side of the display panel.

The second sensing electrode 202 and the second wiring may be disposed on the upper surface of the first substrate 910 or the rear surface of the second substrate 920.

Further, the substrate 100 may further include a polarizer.

When the display panel is a liquid crystal display panel, when the second sensing electrode is formed on the upper surface of the first substrate 910, the sensing electrode may be formed with a thin film transistor (TFT) have. When the second sensing electrode is formed on the back surface of the second substrate 920, a color filter layer may be formed on the sensing electrode, or a sensing electrode may be formed on the color filter layer. When the display panel is an organic light emitting display panel, when the second sensing electrode is formed on the upper surface of the first substrate 910, the second sensing electrode may be formed with a thin film transistor or an organic light emitting diode .

The touch device according to the embodiment may omit at least one substrate supporting the sensing electrode. As a result, a touch device with a thin thickness and light weight can be formed. Further, the sensing electrode and the wiring are formed together with the element formed on the display panel, thereby simplifying the process and reducing the cost.

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. 14 to 17. FIG.

Referring to Fig. 14, a mobile terminal is shown as an example of a touch 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. 15, 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. Such a flexible touch window can be applied to a wearable touch or the like.

Referring to FIG. 16, 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.

17, 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

A substrate including a valid region and a non-valid region;
A sensing electrode on the effective area; And
And a wiring electrode on the non-effective region,
Wherein at least one of the sensing electrode and the wiring electrode includes a first electrode and a second electrode disposed between the first electrode,
Wherein the first electrode and the second electrode comprise different materials.

The method according to claim 1,
Wherein the first electrode includes a plurality of sub first electrodes,
Wherein the second electrode includes a plurality of sub-second electrodes,
Wherein a width of the sub first electrode is different from a width of the sub second electrode.

3. The method of claim 2,
Wherein a width of the sub first electrode is larger than a width of the sub second electrode.

3. The method of claim 2,
Wherein the sub first electrodes are spaced apart from each other.

3. The method of claim 2,
And the sub second electrodes are integrally formed.

The method according to claim 1,
Wherein the first electrode and the second electrode are disposed in contact with each other.

3. The method of claim 2,
Wherein the thickness of the sub first electrode is different from the thickness of the sub second electrode.

The method according to claim 1,
And an anti-reflection layer disposed on the second electrode.

9. The method of claim 8,
Wherein the second electrode includes a first surface contacting the substrate and a second surface opposite to the first surface,
Wherein the antireflection layer is disposed on at least one of the one surface and the other surface.

The method according to claim 1,
Wherein the first electrode comprises a transparent conductive material,
Wherein the second electrode comprises a metal.

The method according to claim 1,
And the second electrode is disposed in a mesh shape.

The method according to claim 1,
Wherein the first electrode and the second electrode are alternately arranged.