KR20160070538A - Touch window - Google Patents

Abstract

According to an embodiment of the present invention, provided is a touch window with improved visibility. The touch window includes a substrate and an electrode structure on the substrate. The electrode structure includes an electrode layer on the substrate and a resin layer on the electrode layer. A chromaticity index (b*) of the electrode structure is greater than or equal to 0.

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.

Such a touch window can be largely divided into a resistive touch window and a capacitive touch window. In the resistive touch window, the glass and the electrode are short-circuited by the pressure of 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.

Resistive touch windows can degrade performance by repeated use and scratches can occur. As a result, there is a growing interest in a capacitive touch window having excellent durability and long life span.

Such a touch window can be formed by disposing electrodes on a substrate. As such electrodes, for example, a conductive polymer can be used.

Such a conductive polymer has a problem that it has a blue color tone due to the characteristic of the conductive polymer, that is, the chromaticity index having a negative value.

As a result, there is a problem that a blue color is visually recognized from the outside and the overall visibility is deteriorated.

Therefore, a touch window of a new structure capable of solving such a problem is required.

The embodiment seeks to provide a touch window having improved visibility.

A touch window according to an embodiment includes a substrate; And an electrode structure on the substrate, wherein the electrode structure comprises: an electrode layer on the substrate; And a resin layer on the electrode layer, and the chromaticity index (b *) of the electrode structure is 0 or more.

The touch window according to the embodiment can control the overall color tone of the electrode structure by adjusting the chromaticity index value of the sensing electrode serving as the adhesive layer and the electrode layer.

That is, in order to prevent the blue color, which is the specific color of the conductive polymer, from being externally visible, the chromaticity index of the electrode structure in which the conductive polymer and the resin layer are stacked is controlled to a positive value by controlling the chromaticity index of the resin layer, The blue color of the polymer can be prevented from being visually recognized from the outside.

Accordingly, the touch window according to the embodiment can prevent a decrease in visibility according to the conductive polymer, thereby improving the visibility of the touch window.

1 is a top view of a touch window according to an embodiment.
2 is a cross-sectional view of a touch window according to an embodiment.
3-6 are cross-sectional views of a touch window according to various embodiments.
7 to 9 are views showing 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, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Referring to FIG. 1, a touch window according to an embodiment may include a substrate 100, a sensing electrode 200, and a wiring electrode 300.

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

The substrate 100 may include a cover substrate. That is, the sensing electrodes, the wiring electrodes, and the like may be supported by the cover substrate. Alternatively, a separate cover substrate may be further disposed on the substrate 100. That is, the sensing electrodes, the wiring electrodes, and the like are supported by the substrate, and the substrate 100 and the cover substrate may 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 sensing electrode 200 may be disposed on the substrate 100. For example, the sensing electrode 200 may be disposed on the effective area AA and the ineffective area UA of the substrate 100. Preferably, the sensing electrode 200 may be disposed on the effective area AA of the substrate 100.

For example, the sensing electrode 200 may include a conductive material such as indium tin oxide (indium tin oxide), indium zinc oxide (ITO), or the like. The sensing electrode 200 may include a transparent conductive material to allow electricity to flow therethrough without interfering with transmission of light. for example, metal oxides such as indium zinc oxide, copper oxide, tin oxide, zinc oxide, and titanium oxide.

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.

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.

Preferably, the sensing electrode 200 may include a conductive polymer. For example, the sensing electrode 200 may include at least one conductive polymer such as a thermosetting conductive polymer and a photocurable conductive polymer.

For example, the electrode layer 30 may include at least one of polyaniline, polyphenylenevinylene, polythienylenevinylene, polyacetylene, polypyrrole, polythiophene, , poly (3-alkylthiophene), polyphenylene vinylene, polythienyl-ene vinylene, polyphenylene, polyisothianaphthene, polyazulene, And at least one conductive polymer of polyfuran.

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

In detail, the sensing electrode 200 may include a mesh opening LA between the mesh line LA and the mesh opening LA by a plurality of sub-electrodes crossing each other in a mesh shape.

The line width of the mesh line LA may be about 0.1 mu m to about 10 mu m. If the mesh line LA has a line width less than about 0.1 mu m, the mesh line portion may not be formed in a manufacturing process or may short-circuit the mesh line. When the mesh line LA exceeds about 10 mu m, the electrode pattern may be visually recognized from the outside, have. Preferably, the line width of the mesh line LA may be about 0.5 mu m to about 7 mu m. More preferably, the linewidth of the mesh wire may be between about 1 [mu] m and about 3.5 [mu] m.

In addition, the mesh opening 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. Further, the mesh opening may be formed in a regular shape or a random shape.

Since the sensing electrode 200 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.

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

In addition, the wiring electrode 300 may be connected to the sensing electrode 200. For example, one end of the wiring electrode 300 is connected to the sensing electrode 200 and the other end is connected to a printed circuit board (not shown) disposed on the ineffective area UA .

Accordingly, the touch signal sensed from the sensing electrode is transmitted to the printed circuit board on which the driving chip is mounted through the wiring electrode, and is transmitted to the main board chip through the driving chip, so that the touch operation can be performed.

Although not shown in the figure, a print layer may further be disposed on the ineffective area UA of the substrate 100. [ In addition, the wiring electrode 300 may be disposed on the print layer.

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

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

A desired logo or the like may be formed on the print layer by various methods. Such a printing layer can be formed by vapor deposition, printing, wet coating or the like.

The print 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.

The wiring electrode 300 may include a conductive material. For example, the wiring electrode 300 may include the same material as the sensing electrode 200 described above.

In addition, the wiring electrodes 300 may be formed in a mesh shape by a plurality of mesh lines intersecting with each other. Since the mesh lines of the wiring electrode 300 are the same as or similar to the mesh lines of the sensing electrodes described above, the following description is omitted.

Referring to FIG. 2, an electrode structure may be disposed on the substrate 100. For example, an electrode structure including an electrode layer including a sensing electrode 200 and a resin layer 400 may be disposed on the substrate 100.

In addition, the cover substrate 110 may be disposed on the substrate 100. That is, the electrode structure may be disposed between the substrate 100 and the cover substrate 110.

The resin layer 400 may adhere the substrate 100 and the cover substrate 110. The resin layer 400 may include an adhesive material. For example, the resin layer 400 may be an adhesive layer.

The chromaticity index b * of the electrode structure may have a positive value. In detail, the chromaticity index (b *) of the electrode structure may have a value of 0 or more. That is, the chromaticity index (b *) of the electrode structure including the sensing electrode 200 and the resin layer 400 may have a value of zero or more.

The chromaticity index b * may be a unit of a color coordinate system. If the chromaticity index b * has a negative value, the chromaticity index b * may have a blue color. If the chromaticity index b * Lt; / RTI > Further, the color of blue or yellow may be enhanced depending on the size of chromaticity index (b *).

The chromaticity index (b *) value can be measured through a chromaticity coordinate meter. For example, an object to be measured for chromaticity index (b *) is placed on a substrate such as polyethylene terephthalate (PET), and the chromaticity index (b *) reflected on the surface is measured can do.

For example, the magnitude of the chromaticity index (b *) may indicate yellow when the positive value is large, and blue when the negative value is small.

The sensing electrode 200 and the resin layer 400 may have different chromaticity indices b *. For example, the sensing electrode 200 may have a negative chromaticity index b *. In addition, the resin layer 400 may have a chromaticity index b * of a positive value.

That is, the sensing electrode 200 may have a blue color, and the resin layer 400 may have a yellow color. For example, the sensing electrode 200 may include a conductive polymer. That is, the sensing electrode 200 may include a blue conductive polymer having a negative chromaticity index b *.

The chromaticity index b * of the electrode structure including the sensing electrode 200 and the resin layer 400 may have a positive value. That is, the chromaticity index (b *) of the electrode assembly 200 having the negative chromaticity index (b *) value and the resin layer 400 having a positive value is generally positive Lt; / RTI >

Accordingly, since the chromaticity index b * of the electrode structure has a positive value, the sensing electrode 200 having a negative chromaticity index b * and the resin layer 400 having a positive value, The electrode structure may have a yellow color as a whole.

The chromaticity index (b *) value of the resin layer 400 may be about 3 or more. In detail, the chromaticity index (b *) value of the resin layer 400 may be about 3 to about 12. [ When the chromaticity index b * of the resin layer 400 is less than about 3, the chromaticity index b * of the electrode structure has a negative value, so that the color of the electrode structure may have a blue color as a whole, 12, the value of the chromaticity index (b *) becomes too large, and the color of the electrode structure may have a dark yellow color.

In addition, the chromaticity index (b *) of the electrode structure, that is, the electrode structure in which the sensing electrode 200 and the resin layer 400 are stacked may have a positive value of less than 2.5. If the chromaticity index (b *) of the electrode structure has a chromaticity index (b *) exceeding 2.5, the yellow according to the chromaticity index (b *) value can be visually recognized from the outside.

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 1

A sensing electrode including a conductive polymer was disposed on a substrate, and a resin layer was disposed on the sensing electrode. Subsequently, a cover substrate was placed on the resin layer to manufacture a touch window.

The chromaticity index (b *) of the sensing electrode had a negative value, and the chromaticity index of the resin layer had a value of about 3.

Then, the chromaticity indices of the laminated structure of the sensing electrode and the resin layer were measured.

Example 2

The touch window was manufactured in the same manner as in Example 1 except that the chromaticity index (b *) of the resin layer was about 7. The chromaticity indices of the laminated structure of the sensing electrode and the resin layer were measured.

Example 3

The touch window was manufactured in the same manner as in Example 1 except that the chromaticity index (b *) of the resin layer was about 12. The chromaticity indices of the laminated structure of the sensing electrode and the resin layer were measured.

Comparative Example 1

The chromaticity index (b *) of the laminated structure of the sensing electrode and the resin layer was measured after manufacturing the touch window in the same manner as in Example 1, except that the chromaticity index (b *) of the resin layer was about 0.2 .

Comparative Example 2

The chromaticity index (b *) of the laminated structure of the sensing electrode and the resin layer was measured after manufacturing the touch window in the same manner as in Example 1, except that the chromaticity index (b *) of the resin layer was about 2 .

Comparative Example 3

The chromaticity index (b *) of the laminated structure of the sensing electrode and the resin layer was measured after manufacturing the touch window in the same manner as in Example 1 except that the chromaticity index (b *) of the resin layer was about 15 .

Chromaticity index value Example 1 +0.52 Example 2 +1.01 Example 3 +2.32 Comparative Example 1 -1.40 Comparative Example 2 -0.75 Comparative Example 3 +3.0

Referring to Table 1, it can be seen that the chromaticity indices (b *) of the laminated structures of Examples 1 to 3 have positive values. That is, a resin layer having a chromaticity index (b *) of 3 to 12 can be disposed on the sensing electrode having a negative value to convert the value of the overall chromaticity index of the laminated structure into a positive value.

On the other hand, in the case of Comparative Examples 1 and 2, it can be seen that the chromaticity index (b *) of the laminated structure has a negative value. That is, it can be seen that the color of the laminated structure has a blue color which is a unique index of the sensing electrode, that is, the conductive polymer.

In the case of Comparative Example 3, the chromaticity index (b *) of the laminated structure has a positive value, but it is 3 or more. That is, it can be seen that the color of the laminated structure has a noticeable yellow color.

The touch window according to the embodiment can control the overall color tone of the electrode structure by adjusting the chromaticity index value of the sensing electrode serving as the adhesive layer and the electrode layer.

That is, in order to prevent the blue color, which is the specific color of the conductive polymer, from being externally visible, the chromaticity index of the electrode structure in which the conductive polymer and the resin layer are stacked is controlled to a positive value by controlling the chromaticity index of the resin layer, The blue color of the polymer can be prevented from being visually recognized from the outside.

Accordingly, the touch window according to the embodiment can prevent a decrease in visibility according to the conductive polymer, thereby improving the visibility of the touch window.

Hereinafter, a touch window according to various embodiments according to the position of the sensing electrode will be described with reference to FIGS. 3 to 6. FIG.

3, the touch window according to the embodiment includes a cover substrate 110 and a substrate 100, and the first sensing electrode 210 and the second sensing electrode 220 are formed on the substrate 100 As shown in FIG.

For example, the first sensing electrode 210 and the second sensing electrode 220 are disposed on the same surface of the substrate 100, and the first sensing electrode 210 and the second sensing electrode 220 220 may have an insulating layer 250 disposed thereon. The insulating layer 250 may be disposed to expose the second sensing electrode 220.

Then, the bridge electrode 230 may be disposed on the insulating layer 250. The bridge electrode 230 may be disposed to connect the second sensing electrode 220. Accordingly, the first sensing electrode 210 and the second sensing electrode 220 may be arranged to extend in different directions without being shorted to each other on the same surface of the substrate 100.

A resin layer 400 is disposed between the cover substrate 110 and the substrate 100 and the cover substrate 110 and the substrate 100 can be bonded together by the resin layer 400.

In addition, at least one of the first sensing electrode 210 and the second sensing electrode 220 may include a conductive polymer. As described above, the first sensing electrode 210, the second sensing electrode 220, The chromaticity index of the electrode structure including the sensing electrode 220 and the resin layer 400 can be controlled to a positive value.

4, the touch window according to the embodiment includes a cover substrate 110, a first substrate 101, and a second substrate 102, and the first sensing electrode 210 includes a first substrate 101, And the second sensing electrode 220 may be disposed on the second substrate 102.

A first resin layer 410 is disposed between the cover substrate 110 and the first substrate 101 and the cover substrate 110 and the first substrate 101 are bonded to the first resin layer 410, respectively.

A second resin layer 420 is disposed between the first substrate 101 and the second substrate 102. The first substrate 101 and the second substrate 102 are spaced apart from each other by a predetermined distance, Can be adhered to each other through the layer (420).

In addition, at least one of the first sensing electrode 210 and the second sensing electrode 220 may include a conductive polymer. As described above, the first sensing electrode 210 and the first sensing electrode 220, The chromaticity index of the electrode structure including the resin layer 410 and the electrode structure including the second sensing electrode 220 and the second resin layer 420 can be controlled to a positive value.

5, the touch window according to the embodiment includes a cover substrate 110 and a substrate 100. The first sensing electrode 210 and the second sensing electrode 220 are formed on the substrate 100 and the other surface thereof.

A resin layer 400 is disposed between the cover substrate 110 and the substrate 100 and the cover substrate 110 and the substrate 100 can be bonded together by the resin layer 400.

In addition, at least one of the first sensing electrode 210 and the second sensing electrode 220 may include a conductive polymer. As described above, the first sensing electrode 210, the second sensing electrode 220, The chromaticity index of the electrode structure including the sensing electrode 220 and the resin layer 400 can be controlled to a positive value.

6, the touch window according to the embodiment includes a cover substrate 110 and a substrate 100, and the first sensing electrode 210 and the second sensing electrode 220 are formed on the substrate 100 on the same plane.

For example, the first sensing electrode 210 and the second sensing electrode 220 may be spaced apart from each other on the same surface of the substrate 100.

That is, unlike the touch window of FIG. 3, an insulating layer and a bridge electrode are not required, and the first sensing electrode 210 and the second sensing electrode 220 may be spaced apart from each other.

A resin layer 400 is disposed between the cover substrate 110 and the substrate 100 and the cover substrate 110 and the substrate 100 can be bonded together by the resin layer 400.

In addition, at least one of the first sensing electrode 210 and the second sensing electrode 220 may include a conductive polymer. As described above, the first sensing electrode 210, the second sensing electrode 220, The chromaticity index of the electrode structure including the sensing electrode 220 and the resin layer 400 can be controlled to a positive value.

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

Referring to FIG. 7, the touch device according to the embodiment may include a touch window disposed on the display panel 500.

7, the touch window includes a cover substrate 110, a first substrate 101, and a second substrate 102. On the first substrate 101, a first sensing electrode 210 And a second sensing electrode 220 may be disposed on the second substrate 102. The cover substrate 110, the first substrate 101, and the second substrate 102 may be bonded together by a first resin layer 410 and a second resin layer 420, respectively.

In addition, the display panel 500 and the touch window 500 may be bonded by the third resin layer 430.

In addition, at least one of the first sensing electrode 210 and the second sensing electrode 220 may include a conductive polymer. As described above, the first sensing electrode 210 and the first sensing electrode 220, The chromaticity index of the electrode structure including the resin layer 410 and the electrode structure including the second sensing electrode 220 and the second resin layer 420 can be controlled to a positive value.

The display panel 500 may include a first substrate 510 and a second substrate 520.

When the display panel 500 is a liquid crystal display panel, the display panel 500 includes a first substrate 510 including a thin film transistor (TFT) and a pixel electrode, and a second substrate 510 including color filter layers. The substrate 520 may be formed in a structure in which the liquid crystal layer is sandwiched between the substrates.

In addition, the display panel 500 may include a thin film transistor, a color filter, and a black matrix formed on a first substrate 510 and a second substrate 520 interposed between the first substrate 510 Or a color filter on transistor (COT) structure. That is, a thin film transistor may be formed on the first substrate 510, 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 510 to be 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.

When the display panel 500 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 500.

When the display panel 500 is an organic light emitting display panel, the display panel 500 includes a self-luminous element that does not require a separate light source. In the display panel 500, a thin film transistor is formed on a first substrate 510, 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. In addition, the organic light emitting device may further include a second substrate 520 serving as an encapsulation substrate for the encapsulation.

Referring to FIG. 8, the touch device according to the embodiment may include a touch window formed integrally with the display panel 500. 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 500. That is, at least one sensing electrode may be formed on at least one surface of the first substrate 510 or the second substrate 520.

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

8, the touch window includes a cover substrate 110 and a substrate 100, and the first sensing electrode 210 is disposed on the substrate 100, and the cover substrate 110, The substrate 100 may be bonded by the first resin layer 410.

The second sensing electrode 220 may be disposed on one surface of the display panel 500. In addition, the touch window and the display panel 500 may be bonded by the second resin layer 420.

In addition, at least one of the first sensing electrode 210 and the second sensing electrode 220 may include a conductive polymer. As described above, the first sensing electrode 210 and the first sensing electrode 220, The chromaticity index of the electrode structure including the resin layer 410 and the electrode structure including the second sensing electrode 220 and the second resin layer 420 can be controlled to a positive value.

In addition, a polarizer may be further included under the cover 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 600 is a liquid crystal display panel, the polarizer may be a linear polarizer. In addition, when the display panel 600 is an organic light emitting display panel, the polarizing plate may be an external light reflection preventing polarizing plate.

In addition, the second sensing electrode 220 may be disposed on the polarizing plate.

The touch device according to Fig. 8 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. 9, the touch device according to the embodiment may include a touch window formed integrally with the display panel 600. 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 510 and a second substrate 520. 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 510 and the second substrate 520. That is, at least one sensing electrode may be disposed on at least one surface of the first substrate 510 or the second substrate 520.

9, the touch window includes a cover substrate 110 and a substrate 100, the first sensing electrode 210 is disposed on the substrate 100, the cover substrate 110, The substrate 100 may be bonded by the first resin layer 410.

The second sensing electrode 220 may be disposed between the first substrate 510 and the second substrate 520. That is, the second sensing electrode 220 may be disposed on the inner side of the display panel, and the first sensing electrode 210 may be disposed on the outer side of the display panel.

The second sensing electrode 220 may be disposed on an upper surface of the first substrate 510 or a rear surface of the second substrate 520.

In addition, a polarizer may be further included under the cover substrate 100.

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 610, the sensing electrode may be formed with a thin film transistor (TFT) or a pixel electrode . In addition, when the second sensing electrode is formed on the back surface of the second substrate 520, 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 and the second sensing electrode is formed on the upper surface of the first substrate 510, the second sensing electrode may be formed with a thin film transistor or an organic light emitting diode .

The touch device according to Fig. 9 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. 10 to 13. FIG.

Referring to Fig. 10, 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. 11, 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. 12, 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.

13, 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 (12)

Board; And
And an electrode structure on the substrate,
Wherein the electrode structure comprises:
An electrode layer on the substrate; And
And a resin layer on the electrode layer,
Wherein the chromaticity index (b *) of the electrode structure is 0 or more. The method according to claim 1,
Wherein the resin layer comprises an adhesive material. The method according to claim 1,
The electrode layer has a chromaticity index of (-) value,
Wherein the resin layer has a positive (+) chromaticity index. The method of claim 3,
Wherein the resin layer has a chromaticity index of 3 to 12. The method according to claim 1,
Wherein the electrode layer includes a sensing electrode and a wiring electrode,
Wherein at least one of the sensing electrode and the wiring electrode comprises a conductive polymer. 6. The method of claim 5,
Wherein at least one of the sensing electrode and the wiring electrode includes a mesh shape. 6. The method of claim 5,
Wherein the substrate comprises a valid region and a non-valid region,
Wherein the sensing electrode is disposed on the effective region,
Wherein the wiring electrode is disposed on the ineffective region,
Wherein the resin layer is disposed on the effective region. The method according to claim 1,
Wherein the chromaticity index of the electrode structure has a positive value less than 2.5. 6. The method of claim 5,
Further comprising a cover substrate on said substrate,
Wherein the resin layer is disposed in contact with the cover substrate. 6. The method of claim 5,
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. 6. The method of claim 5,
Wherein the sensing electrode includes a first sensing electrode and a second sensing electrode,
Wherein the first sensing electrode is disposed on one side of the substrate,
Wherein the second sensing electrode is disposed on the other surface of the substrate. 6. The method of claim 5,
Wherein the sensing electrode includes a first sensing electrode and a second sensing electrode,
Wherein the substrate comprises a first substrate and a second substrate on the first substrate,
Wherein the first sensing electrode is disposed on one surface of the first substrate,
Wherein the second sensing electrode is disposed on one surface of the second substrate.

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