KR20160092432A - Touch window - Google Patents

Abstract

The present invention provides a touch window having improved visibility and reliability. According to the present invention, the touch window includes a substrate and an electrode layer disposed on the substrate. The electrode layer includes: a first metal layer; a second metal layer disposed on at least one surface of the first metal layer and including Nb; and a buffer layer disposed between the first metal layer and the second metal layer.

Description

Touch window {TOUCH WINDOW}

The present invention 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 may be provided with a sensing electrode on the substrate and a wiring electrode connected to the sensing electrode. The touch window may detect a change in capacitance or the like when the sensing electrode is touched.

For example, the touch signal sensed by the sensing electrode can be transmitted to the printed circuit board through the wiring electrode, and the touch signal can be transmitted to the main board chip through the chip mounted on the printed circuit board.

The sensing electrode may be formed of a conductive material that is electrically conductive, and may include a conductive material such as a metal. Such a metal has a problem in that the visibility of the touch window is lowered because the light incident from the outside is visually recognized from the outside because of its unique shining characteristics.

Further, there is a problem that touch sensitivity may be deteriorated due to corrosion of the electrode layer.

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

The present invention seeks to provide a touch window having improved visibility and reliability.

The touch window according to the present invention includes a substrate and an electrode layer disposed on the substrate, wherein the electrode layer includes a first metal layer and a second metal layer disposed on at least one surface of the first metal layer, 2 metal layer contains Nb.

The touch window according to the present invention includes a substrate and an electrode layer disposed on the substrate, wherein the electrode layer includes a first metal layer and a second metal layer disposed on at least one surface of the first metal layer, And a buffer layer disposed between the first metal layer and the second metal layer.

The touch window of the present invention may include an electrode layer including a first metal layer and a second metal layer.

The second metal layer prevents the deformation and corrosion of the first metal layer and thus protects the electrode layer more easily and prevents the electrode layer from being visually recognized according to the color change, thereby improving the visibility of the touch window.

In addition, the buffer layer can relieve the stress of the electrode layer and prevent deformation of the substrate and / or the electrode layer, thereby improving the reliability of the touch window.

Therefore, the touch window according to the present invention can have improved reliability and efficiency, and can improve the visibility.

1 is a plan view of a touch window according to an embodiment.
Fig. 2 is an enlarged view of one area of Fig. 1; Fig.
FIGS. 3 to 5 are cross-sectional views taken along line AA 'of FIG. 2 according to the first embodiment.
FIGS. 6 and 7 are other cross-sectional views cut along AA 'of FIG. 2 according to the first embodiment.
8 to 10 are cross-sectional views taken along the AA 'line of FIG. 2 according to the second embodiment.
FIGS. 11 and 12 are other cross-sectional views taken along line AA 'of FIG. 2 according to the second embodiment.
13 to 16 are views for explaining various types of touch windows according to the first and second embodiments.
17 to 19 are views for explaining a touch device in which a touch window and a display panel according to the first and second embodiments are combined.
20 to 23 are views showing an example of a touch device device to which the touch window according to the first and second embodiments 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, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 to 12, a touch window according to an embodiment may include a substrate 100, an electrode layer, 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 a curved surface with a curvature that may be bent or curved.

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.

An electrode layer 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 electrode layer can be supported by the cover substrate. Alternatively, a separate cover substrate may be further disposed on the substrate. That is, the electrode layer is supported by the substrate, and the substrate and the cover substrate can be laminated via 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 electrode layer may include a sensing electrode 200 and a wiring electrode 300.

The sensing electrode 200 may be disposed on the substrate 100. In detail, the sensing electrode 200 may be disposed in at least one of an effective area AA of the substrate 100 and the non-effective area UA. Preferably, the sensing electrode 200 may be disposed on the effective area AA of the substrate.

The sensing electrode 200 may include a first sensing electrode 210 and a second sensing electrode 220.

The first sensing electrode 210 and the second sensing electrode 220 may be disposed on one side of the substrate 100. In detail, the first sensing electrode 210 and the second sensing electrode 220 may be disposed on the same side of the substrate 100. That is, the first sensing electrode 210 and the second sensing electrode 220 may be spaced apart from each other so that they do not contact each other on the same side of the substrate 100.

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 at least one selected from the group consisting of indium tin oxide (ITO), indium zinc oxide, copper oxide, tin oxide tin oxide, zinc oxide, titanium oxide, and the like.

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.

Alternatively, at least one of the first sensing electrode 210 and the second sensing electrode 220 may include various metals. For example, at least one of the first sensing electrode 210 and the second sensing electrode 220 may be formed of at least one selected from the group consisting of Cr, Ni, Cu, Al, Ag) and molybdenum (Mo). Gold (Au), titanium (Ti), and alloys thereof.

The sensing electrode 200 may include a mesh shape. In detail, the sensing electrode 200 includes a plurality of sub-electrodes, and the sub-electrodes may be formed as mesh electrodes arranged crossing each other in a mesh shape.

2, the sensing electrode 200 includes a mesh line LA and a meshed opening OA between the mesh lines LA by a plurality of sub-electrodes crossing each other in a mesh shape. can do. At this time, the line width of the mesh line LA may be about 0.1 탆 to about 10 탆. 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.

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

Since the sensing electrode has a mesh shape, the pattern of the sensing electrode can be made invisible on the effective area AA or the non-effective area UA. 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.

The wiring electrode 300 may be disposed on the substrate 100. In detail, the wiring electrode 300 may be disposed on the same surface as the sensing electrode 200.

The wiring electrode 300 may be disposed on at least one of the effective area AA and the ineffective area UA of the substrate 100. For example, the wiring electrode 300 may be disposed on the effective area AA and the ineffective area UA of the substrate 100.

Referring to FIG. 1, the wiring electrode 300 may extend from the effective area AA to the non-effective area UA. In detail, the wiring electrode 300 may be connected to the sensing electrode 200 in the effective area AA and may be connected to the printed circuit board 400 in the non-effective area AA.

The printed circuit board 400 may be disposed between at least one of a valid region and a non-valid region of the substrate 100.

The printed circuit board 400 may include a driving chip. Accordingly, a touch signal sensed by the sensing electrode 200 is transmitted through the wiring electrode 300, and the touch signal can be transmitted to the driving chip.

The wiring electrode 300 may include the same or similar material as the sensing electrode 200 described above. In addition, the wiring electrode 300 may include a mesh shape like the sensing electrode.

1 and 2, the wiring electrode 300 includes a first wiring electrode 310 disposed on the effective area AA and a second wiring electrode 320 disposed on the non-valid area UA. . ≪ / RTI > At least one wiring electrode of the first wiring electrode 310 and the second wiring electrode 320 may include a mesh shape. For example, the first wiring electrodes 310 may be arranged in a mesh shape by a plurality of sub-electrodes crossing each other, and the second wiring electrodes 320 may be arranged in a bulk wiring. However, the embodiment is not limited to this, and both the first wiring electrode 310 and the second wiring electrode 320 may be formed in a mesh shape or the first wiring electrode 310 and the second wiring electrode 320 may all be formed of bulk wiring.

The first wiring electrode 310 and the second wiring electrode 320 may be integrally formed.

3 to 5 are views showing one end surface of the electrode layer of the touch window according to the first embodiment. 3 through 5 illustrate the sensing electrodes, the present invention is not limited thereto. It is needless to say that the electrode layer may include wiring electrodes in addition to the sensing electrodes.

Referring to FIGS. 3 to 5, the first sensing electrode 210 may be disposed on the substrate 100. The first sensing electrode 210 may include a first metal layer 211 and a second metal layer 212.

The first metal layer 211 may be disposed directly or indirectly in contact with the substrate 100.

The second metal layer 212 may be disposed on at least one of the first and second surfaces of the first metal layer 211. For example, the second metal layer 220 may be disposed to contact at least one surface of the first metal layer 211.

Referring to FIG. 3, the second metal layer 212 may be disposed on the upper surface of the first metal layer 211. The second metal layer 212 is disposed on the upper surface of the first metal layer 211 and may be in direct or indirect contact with the first metal layer 211. In detail, the first metal layer 211 may include one surface contacting the substrate 100 and the other surface opposite to the first surface, and the second metal layer 212 may be formed on the other surface of the first metal layer 211 .

The first metal layer 211 and the second metal layer 212 may include different metal layers.

In addition, the first metal layer 211 and the second metal layer 212 may include a conductive material having different resistances.

The first metal layer 211 and the second metal layer 212 may be metal layers having different lattice constants.

For example, the first metal layer 211 may include at least one selected from the group consisting of Cr, Ni, Cu, Al, Ag, and Mo. Gold (Au), titanium (Ti), and alloys thereof. In detail, the first metal layer 211 may include copper (Cu).

For example, the second metal layer 212 may include niobium (Nb). However, the embodiment is not limited to this, and it is possible to apply a black-based material which can prevent the oxidation of the first metal layer 211 and can suppress the reflectivity.

The second metal layer 212 may have a color. For example, the second metal layer 212 may include a black-based color. For example, the second metal layer 212 may include black-based colors such as a black mixed color in which a mixture of a color of a black color and a black color is mixed.

The second metal layer 212 may be disposed on the first metal layer 211 to protect the first metal layer from penetration of external impurities and the like. For example, the first metal layer 211 is disposed on one surface of the first metal layer 211 to protect the first metal layer 211 from external impurities, thereby preventing corrosion or damage of the first metal layer 211.

That is, the second metal layer 212 can prevent the discolored first metal layer 211 from being visible from the outside because the first metal layer 211 is etched and discolored. For example, the second metal layer 212 may be an anti-oxidation layer of the first metal layer 211.

In addition, the second metal layer 212 may include a black-based color. Accordingly, when the first metal layer 211 is formed of a material such as a metal, it is possible to prevent the first metal layer 211 from being visible from the outside due to the shiny characteristics unique to the metal. That is, the second metal layer 212 may be an anti-reflection layer.

In addition, the second metal layer 212 may have conductivity. That is, the sensing electrode 200 includes the first metal layer 211 and the second metal layer 212, and the second metal layer 212 may have conductivity and may have a black-based color .

The thicknesses of the first metal layer 211 and the second metal layer 212 may be different from each other. In detail, the thickness of the first metal layer 211 may be greater than the thickness of the second metal layer 212.

For example, the thickness of the first metal layer 211 may range from about 100 nm to about 500 nm. In detail, the thickness of the first metal layer 211 may be about 150 nm to about 250 nm. More specifically, the thickness of the first metal layer 211 may be about 180 nm to about 200 nm.

If the thickness of the first metal layer 211 is greater than about 500 nm, the thickness of the touch window may increase.

For example, the second metal layer 212 may have a thickness of about 1 nm to about 30 nm. In detail, the thickness of the second metal layer 212 may be about 10 nm to about 30 nm. More specifically, the thickness of the second metal layer 212 may be from about 20 nm to about 30 nm.

If the thickness of the second metal layer 212 is less than about 1 nm, the oxidation and / or radiation prevention characteristics of the first metal layer 211 may be deteriorated.

If the thickness of the second metal layer 212 is greater than about 30 nm, the second metal layer 212 may be too thick to cause an etching failure.

Referring to FIGS. 4 and 5, the second metal layer 212 may be disposed on the other surface of the first metal layer 211.

Referring to FIG. 4, the second metal layer 212 may be disposed on the lower surface of the first metal layer 211. For example, the second metal layer 212 may be disposed on the lower surface of the first metal layer 211 and directly or indirectly contact the first metal layer 211.

Alternatively, referring to FIG. 5, the second metal layer 212 may be disposed on the upper surface and the lower surface of the first metal layer 211. For example, the second metal layer 212 may be disposed on the upper and lower surfaces of the first metal layer 211 and directly or indirectly contact the first metal layer 211.

Alternatively, although not shown in the figure, the second metal layer 212 may be disposed on at least one of the side surfaces of the first metal layer 211.

6 and 7 are other views illustrating one end surface of the electrode layer of the touch window according to the first embodiment. 6 and 7 illustrate the sensing electrodes, but it goes without saying that the electrode layer may include wiring electrodes in addition to the sensing electrodes.

Referring to FIGS. 6 and 7, the touch window according to another embodiment may further include an intermediate layer disposed on the substrate 100, that is, a resin layer 600.

Referring to FIG. 6, the resin layer 600 may include a first pattern 610 and a second pattern 620. The first pattern 610 and the second pattern 620 may have different sizes. In detail, the second pattern 620 may have a larger size than the first pattern 610. For example, the width of the first pattern 610 may be in the nanometer range, and the width of the second pattern 620 may be in the micrometer range.

The first metal layer 211 may be disposed on the second pattern 620. For example, after the conductive material for forming the first metal layer 211 is disposed on the first pattern 610 and the second pattern 620, the bonding area of the conductive material and the first pattern and the conductivity The first metal layer 211 may be left only on the second pattern 620 by leaving a conductive material only on the second pattern in accordance with the etching rate difference depending on the difference in the bonding area of the material and the second pattern .

The second metal layer 212 may be disposed on the first metal layer 211. 6, the second metal layer 212 is disposed on the upper surface of the first metal layer 211. However, the second metal layer 212 may be formed on the upper surface of the first metal layer 211, , The bottom surface, and the side surface.

Referring to FIG. 7, the resin layer 600 may include a pattern P. FIG. For example, the resin layer 600 may include a relief pattern.

The first metal layer 211 may be disposed on the pattern P. For example, the first metal layer 211 may be disposed inside the engraved pattern.

The second metal layer 212 may be disposed on the first metal layer 211. 7, the second metal layer is disposed on the upper surface of the first metal layer 211, but the present invention is not limited thereto. The second metal layer may be formed on the upper surface, lower surface, May be disposed on at least one of the sides.

The touch window according to the first embodiment can prevent oxidation of the first metal layer 211 by disposing the second metal layer 212 on at least one surface of the first metal layer 211 and / . Also, reflection due to the total reflection characteristic of the first metal layer 211 can be prevented. Thus, the touch window according to the first embodiment can be improved in reliability and visibility.

8 to 10 are views showing one end surface of the electrode layer of the touch window according to the second embodiment. 8 to 10 illustrate the sensing electrode. However, the embodiment is not limited thereto, and it goes without saying that the electrode layer may include a wiring electrode in addition to the sensing electrode.

Referring to FIGS. 8 to 10, the first sensing electrode 210 and the buffer layer 500 may be disposed on the substrate 100. The first sensing electrode 210 may include a first metal layer 211 and a second metal layer 212.

One side of the buffer layer 500 may be disposed in contact with the first metal layer 211 and the other side opposite to the first side of the buffer layer 500 may be disposed in contact with the second metal layer 212. have.

Referring to FIG. 8, the second metal layer 212 may be disposed on the upper surface of the first metal layer 211. The second metal layer 212 may be disposed on the first metal layer 211 and the buffer layer 500 may be disposed between the first metal layer 211 and the second metal layer 212. In detail, the first metal layer 211 may include one surface contacting the substrate 100 and the other surface opposite to the first surface, and the second metal layer 212 may be formed on the other surface of the first metal layer 211 .

For example, the buffer layer 500 may be disposed directly on the other surface of the first metal layer 211, and the second metal layer 212 may be indirectly disposed in contact with the buffer layer 500.

For example, the first metal layer 211 and the second metal layer 212 may comprise the same or similar materials as the first embodiment.

The buffer layer 500 may include an oxide.

The buffer layer 500 may include a metal oxide. For example, the buffer layer 500 may be an oxide including the same metal as the first metal layer 211.

The buffer layer 500 may be an oxide including a material different from the first metal layer 211. For example, the buffer layer 500 may include silicon dioxide.

The lattice constants of the first metal layer 211, the second metal layer 212, and the buffer layer 500 may be different from each other. For example, the lattice constant of the buffer layer 500 may have a value between the lattice constant of the first metal layer 211 and the lattice constant of the second metal layer 212. Accordingly, the stress between the second metal layer 212 and the first metal layer 211 can be relaxed.

That is, the buffer layer 500 having a value between the lattice constant of the first metal layer 211 and the lattice constant of the second metal layer 212 is divided into the first metal layer 211 and the second metal layer 212, The stress generated at the contact interface between the first metal layer 211 and the second metal layer 212 can be relaxed.

For example, when the first metal layer 211 is disposed on the substrate 100 and the second metal layer 212 is disposed on the first metal layer 211, The first metal layer 211 and the second metal layer 212 may be desorbed and warping may occur in the substrate and / or the electrode layer as the stress increases.

The buffer layer 500 may be a stress relaxation layer or a stress distribution layer. That is, the stress generated at the contact interface between the first metal layer 211 and the second metal layer 212, which are different materials, can be relaxed. Thus, deformation of the substrate 100 and / or the electrode layer can be prevented.

For example, deformation of the substrate and / or the electrode layer caused by disposing the electrode layer on a flexible substrate can be prevented.

In detail, it is possible to prevent the substrate 100 from being shrunk or curled. In addition, hillocks or wrinkles can be prevented from occurring on the surface of the electrode layer.

The thicknesses of the first metal layer 211, the second metal layer 212, and the buffer layer 500 may be different from each other. The thickness of the first metal layer 211 may be greater than the thickness of the second metal layer 212. The thickness of the first metal layer 211 may be greater than the thickness of the buffer layer 500.

For example, the thickness of the second metal layer 212 may be greater than the thickness of the buffer layer 500.

For example, the thicknesses of the first metal layer 211 and the second metal layer 212 may be the same or similar to those of the first embodiment.

For example, the buffer layer 500 may have a thickness of about 1 nm to about 30 nm. In detail, the buffer layer 500 may have a thickness of about 1 nm to about 20 nm. More specifically, the buffer layer 500 may have a thickness of about 10 nm to about 20 nm.

When the thickness of the buffer layer 500 is less than about 1 nm, the substrate 100 may bend or dry, thereby making it difficult to uniformly form the electrode layer.

If the thickness of the buffer layer 500 is greater than about 30 nm, the electrical characteristics of the touch window may be degraded.

Referring to FIGS. 9 and 10, the second metal layer 212 may be disposed on the other surface of the first metal layer 211.

Referring to FIG. 9, the second metal layer 212 may be disposed on the lower surface of the first metal layer 211. For example, the second metal layer 212 is disposed on the lower surface of the first metal layer 211, and the buffer layer 500 is disposed between the first metal layer 211 and the second metal layer 212 .

Alternatively, referring to FIG. 10, the second metal layer 212 may be disposed on the upper and lower surfaces of the first metal layer 211. For example, the second metal layer 212 is disposed on the upper surface and the lower surface of the first metal layer 211, and the buffer layer 500 (not shown) is disposed between the first metal layer 211 and the second metal layer 212, May be disposed.

Alternatively, although not shown in the figure, the second metal layer 212 may be disposed on at least one of the side surfaces of the first metal layer 211.

FIGS. 11 and 12 are other views showing one end surface of the electrode layer of the touch window according to the second embodiment. 11 and 12 illustrate the sensing electrodes, it will be appreciated that the electrode layer may include wiring electrodes in addition to the sensing electrodes.

Referring to FIGS. 11 and 12, the touch window according to another embodiment may further include an intermediate layer disposed on the substrate 100, that is, a resin layer 600.

Referring to FIG. 11, the resin layer 600 may include a first pattern 610 and a second pattern 620. The first pattern 610 and the second pattern 620 may have different sizes. In detail, the second pattern 620 may have a larger size than the first pattern 610. For example, the width of the first pattern 610 may be in the nanometer range, and the width of the second pattern 620 may be in the micrometer range.

The first metal layer 211 may be disposed on the second pattern 620. For example, after the conductive material for forming the first metal layer 211 is disposed on the first pattern 610 and the second pattern 620, the bonding area of the conductive material and the first pattern and the conductivity The first metal layer 211 may be left only on the second pattern 620 by leaving a conductive material only on the second pattern in accordance with the etching rate difference depending on the difference in the bonding area of the material and the second pattern .

The second metal layer 212 may be disposed on the first metal layer 211 and the buffer layer 500 may be disposed between the first metal layer 211 and the second metal layer 212. 11, the second metal layer is disposed only on the upper surface of the first metal layer 211, but the second metal layer is not limited to the upper surface, the lower surface, and the upper surface of the first metal layer 211, May be disposed on at least one of the sides.

Referring to FIG. 12, the resin layer 600 may include a pattern P. FIG. For example, the resin layer 600 may include a relief pattern.

The first metal layer 211 may be disposed on the pattern P. For example, the first metal layer 211 may be disposed inside the engraved pattern.

The second metal layer 212 may be disposed on the first metal layer 211 and the buffer layer 500 may be disposed between the first metal layer 211 and the second metal layer 212. 12, the second metal layer is disposed only on the upper surface of the first metal layer 211, but the present invention is not limited thereto. The second metal layer may be formed on the upper surface, the lower surface, May be disposed on at least one of the sides.

The touch window according to the second embodiment can prevent the oxidation of the first metal layer 211 by disposing the second metal layer 212 on at least one surface of one surface and the other surface of the first metal layer 211 . Also, reflection due to the total reflection characteristic of the first metal layer 211 can be prevented. Thus, the touch window according to the second embodiment can be improved in reliability and visibility.

The touch window according to the second embodiment can prevent deformation of the substrate 100 and / or the electrode layer by disposing a buffer layer between the first metal layer 211 and the second metal layer 212 . Therefore, the reliability of the touch window according to the second embodiment can be improved.

Hereinafter, various types of touch windows according to the first and second embodiments will be described with reference to FIGS. 13 to 16. FIG.

Referring to FIG. 13, the touch window according to the embodiment may include a cover substrate 101. The first sensing electrode 210 and the second sensing electrode 220 may be disposed on the cover substrate 110.

For example, the first sensing electrode 210 and the second sensing electrode 220 may be disposed on one surface of the cover substrate 101. In detail, the first sensing electrode 210 and the second sensing electrode 220 may be disposed on the same side of the cover substrate 101.

The first sensing electrode 210, the second sensing electrode 220, the first sensing electrode 210, and the second sensing electrode 220, which extend in different directions on the same surface of the cover substrate 101, The first sensing electrode and the second sensing electrode may be spaced from each other on the same surface of the cover substrate 101 or insulated from each other. That is, the first sensing electrode 210 may extend in one direction, and the second sensing electrode 220 may extend in a direction different from the one direction.

Referring to FIG. 14, a touch window according to an embodiment may include a cover substrate 101 and a substrate 100 on the cover substrate 101.

The first sensing electrode 210 and the second sensing electrode 220 may be disposed on the substrate 100.

For example, the first sensing electrode 210 and the second sensing electrode 220 may be disposed on one side of the substrate 100. In detail, the first sensing electrode 210 and the second sensing electrode 220 may be disposed on the same side of the substrate 100.

The first sensing electrode 210, the second sensing electrode 220, the first sensing electrode 210, and the second sensing electrode 220, which extend in different directions on the same surface of the substrate 100, And the first sensing electrode and the second sensing electrode may be spaced apart from each other on the same surface of the substrate 100 or insulated from each other. That is, the first sensing electrode 210 may extend in one direction, and the second sensing electrode 220 may extend in a direction different from the one direction.

Referring to FIG. 15, a touch window according to an embodiment may include a cover substrate 101 and a substrate 100 on the cover substrate 101.

A first sensing electrode 210 may be disposed on the cover substrate 101 and a second sensing electrode 220 may be disposed on the substrate 100. The substrate 100 may include the same or similar material as the cover substrate 110.

A first sensing electrode 210 extending in one direction and a wiring electrode 300 connected to the first sensing electrode 210 are disposed on one surface of the cover substrate 110. The first sensing electrode 210 and the second sensing electrode 210 are electrically connected to each other, A second sensing electrode 220 extending in a direction different from the first sensing electrode 210 and a wiring electrode 300 connected to the second sensing electrode 220 may be disposed on one surface.

Alternatively, the first sensing electrode 210 and the second sensing electrode 220 may all be disposed on the substrate 100. For example, the first sensing electrode 210 may be disposed on one side of the substrate 100, and the second sensing electrode 220 may be disposed on the opposite side of the first sensing electrode 220.

16, the touch window according to the embodiment includes a cover substrate 101, a first substrate 110 on the cover substrate 101, and a second substrate 120 on the first substrate 110 .

A first sensing electrode 210 may be disposed on the first substrate 110 and a second sensing electrode 220 may be disposed on the second substrate 120.

A first sensing electrode 210 extending in one direction and a wiring electrode 300 connected to the first sensing electrode 210 are disposed on one surface of the first substrate 110, A second sensing electrode 220 extending in a direction different from the first sensing electrode 210 and a wiring electrode 300 connected to the second sensing electrode 220 may be disposed on one surface of the first sensing electrode 220.

Hereinafter, the touch device in which the touch window and the display panel described above are combined will be described with reference to FIGS. 17 to 19. FIG.

Referring to FIG. 17, 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.

17, 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 onto 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 touch windows of the various embodiments described above may be adhered to the display panel 800. [

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.

Referring to FIG. 18, the touch device according to another embodiment may include a touch window formed integrally with the display panel. That is, the substrate supporting at least one electrode can be omitted.

In detail, at least one sensing electrode may be disposed on at least one surface of the display panel 800. The display panel 800 may include a first substrate 810 and a second substrate 820. That is, at least one sensing electrode may be disposed on one surface of at least one substrate of the first substrate 810 or the second substrate 820.

Referring to FIG. 18, a first sensing electrode 210 may be disposed on the upper surface of the display panel 800. Also, a first wiring connected to the first sensing electrode 210 may be disposed. A substrate 100 on which the second sensing electrode 220 and the second wiring are disposed may be formed on the display panel 800 on which the first sensing electrode 210 is disposed. An adhesive layer 700 may be disposed between the substrate 100 and the display panel 800.

The first sensing electrode 210 is formed on the upper surface of the display panel 800 and the substrate 100 supporting the second sensing electrode 220 is connected to the display panel 800 And the structure in which the substrate 100 and the display panel 800 are bonded together is sufficient.

Further, the substrate 100 may be a polarizing plate. That is, the second sensing electrode 220 may be formed on the upper surface or the back surface of the polarizer. Accordingly, the second sensing electrode and the polarizing plate may be integrally formed.

In addition, the substrate 100 may further include a polarizing plate. At this time, the polarizing plate may be disposed under the substrate 100. For example, the polarizing plate may be disposed between the substrate 100 and the display panel 800. In addition, the polarizer may be disposed on the substrate 100.

The polarizing plate may be a linear polarizing plate or an external light reflection preventing polarizing plate. For example, when the display panel 800 is a liquid crystal display panel, the polarizer may be a linear polarizer. In addition, when the display panel 800 is an organic light emitting display panel, the polarizing plate may be an external light reflection preventing polarizing plate.

Referring to FIG. 19, a touch device according to another embodiment may include a touch panel formed integrally with a display panel.

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

The display panel may include a first substrate 810 and a second substrate 820. At this time, at least one of the first sensing electrode 210 and the second sensing electrode 220 may be disposed between the first substrate 810 and the second substrate 820. That is, at least one sensing electrode may be formed on at least one surface of the first substrate 810 or the second substrate 820.

Referring to FIG. 19, a first sensing electrode 210 and a first wiring may be disposed between the first substrate 810 and the second substrate 820. The second sensing electrode 220 and the second wiring may be disposed on the substrate 100. The substrate 100 may be disposed on a display panel including the first substrate 810 and the second substrate 820. That is, the first sensing electrode 210 and the first wiring are disposed on the inner side of the display panel, and the second sensing electrode 220 and the second wiring are disposed on the outer side of the display panel.

The first sensing electrode 210 and the first wiring may be disposed on the upper surface of the first substrate 810 or the rear surface of the second substrate 820. An adhesive layer may be disposed between the first substrate 102 and the display panel. At this time, the first substrate 102 may serve as a cover substrate.

The embodiment is not limited to the drawings, but may be applied to a structure in which a first sensing electrode 210 and a first wiring are disposed inside a display panel, a second sensing electrode 220 and a second wiring are disposed outside the display panel Suffice.

Further, the substrate 100 may be a polarizing plate. That is, the second sensing electrode 220 may be formed on the upper surface or the back surface of the polarizer. Accordingly, the second sensing electrode and the polarizing plate may be integrally formed.

In addition, the substrate 100 may further include a polarizing plate. At this time, the polarizing plate may be disposed under the substrate 100. For example, the polarizing plate may be disposed between the substrate 100 and the display panel. In addition, the polarizing plate may be disposed on the substrate 100.

When the display panel is a liquid crystal display panel, when the sensing electrode is formed on the first substrate 810, the sensing electrode may be formed with a thin film transistor (TFT) or a pixel electrode. In addition, when the sensing electrode is formed on the back surface of the second substrate 2200, 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 sensing electrode is formed on the upper surface of the first substrate 810, the sensing electrode may be formed with a thin film transistor or an organic light emitting diode.

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. 20 to 23. FIG.

Referring to Fig. 20, 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. 21, 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. 22, 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. 23, 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 (10)

A plasma display panel comprising a substrate and an electrode layer disposed on the substrate,
Wherein the electrode layer comprises a first metal layer and a second metal layer disposed on at least one surface of the first metal layer,
Wherein the second metal layer comprises Nb. The method according to claim 1,
Wherein the second metal layer is disposed on both sides of the first metal layer. The method according to claim 1,
Wherein the thickness of the second metal layer is 1 nm to 30 nm. The method according to claim 1,
Wherein the electrode layer includes a sensing electrode and a wiring electrode connected to the sensing electrode,
Wherein at least one of the sensing electrode and the wiring electrode includes a mesh shape. 5. The method of claim 4,
Wherein the sensing electrode includes a first sensing electrode and a second sensing electrode,
Wherein the first sensing electrode and the second sensing electrode are disposed on the same side of the substrate. A plasma display panel comprising a substrate and an electrode layer disposed on the substrate,
Wherein the electrode layer comprises a first metal layer and a second metal layer disposed on at least one surface of the first metal layer,
And a buffer layer disposed between the first metal layer and the second metal layer. The method according to claim 6,
Wherein the second metal layer is disposed on both sides of the first metal layer,
Wherein the buffer layer is disposed between the first metal layer and the second metal layer, respectively. The method according to claim 6,
Wherein the thickness of the buffer layer is 1 nm to 30 nm. The method according to claim 6,
Wherein the second metal layer comprises Nb,
Wherein the thickness of the second metal layer is 1 nm to 30 nm. The method according to claim 6,
Wherein the electrode layer includes a sensing electrode and a wiring electrode connected to the sensing electrode,
Wherein at least one of the sensing electrode and the wiring electrode includes a mesh shape.

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