KR20170039391A - Touch window - Google Patents

Abstract

The present invention relates to a touch window having an electrical characteristic and visibility. According to the embodiment, the touch window includes: a substrate including an active area and an inactive area; and an electrode pattern part provided on at least one of the active area and the inactive area. The electrode pattern part includes a first electrode pattern part and a second electrode pattern part spaced apart from the first electrode pattern part. The first electrode pattern part and the second electrode pattern part include a plurality of mesh lines and a mesh opening defined by the mesh lines. A first length defined by the width of the first electrode pattern part and the distance between the first electrode pattern part and the second electrode part and a second length defined by the width of the mesh opening may satisfy an equation, first length = second length * 2 n (n is a positive integer).

Description

Touch window {TOUCH WINDOW}

An embodiment relates to a touch window.

2. Description of the Related Art In recent years, a touch panel has been applied to an image displayed on a display device in various electronic products by a method of touching an input device such as a finger or a stylus.

Such a touch panel can largely be divided into a resistance film type touch panel and a capacitive type touch panel. In the resistive touch panel, the glass and the electrode are short-circuited by the pressure of the input device and the position is detected. A capacitance type touch panel senses a change in electrostatic capacitance between electrodes when a finger touches them, thereby detecting the position.

The resistance film type touch panel may be deteriorated in performance by repeated use, and scratch may occur. As a result, there is a growing interest in a capacitive touch panel having excellent durability and long life span.

On the other hand, indium tin oxide (ITO) is the most widely used electrode material of the touch panel, and since the indium tin oxide is limited in the implementation of low resistance due to the large surface area, recently, a mesh- .

Such a mesh-shaped electrode requires a process of disposing a conductive material on a substrate, patterning the mesh-like pattern, and disconnecting the mesh line to form respective electrode patterns.

At this time, electrical characteristics may be uneven in each electrode pattern by the process of disconnection of the mesh wire, and defects may occur due to the disconnection process.

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

Embodiments are directed to providing a touch window having improved electrical characteristics and visibility.

A touch window according to an embodiment includes: a substrate including a valid region and a non-valid region; And an electrode pattern portion disposed on at least one of the effective region and the ineffective region, wherein the electrode pattern portion includes a first electrode pattern portion and a second electrode pattern portion spaced from the first electrode pattern portion Wherein the first electrode pattern portion and the second electrode pattern portion include a plurality of mesh lines and a mesh opening formed by the mesh lines, and the width of the first electrode pattern portion and the width of the first electrode pattern portion and the second electrode pattern portion A first length defined by a distance of the electrode pattern portion and a second length defined by the width of the mesh opening may satisfy the following expression.

[Equation]

First length = second length * 2n (where n is a positive integer)

The touch window according to the embodiment can easily form the mesh electrode of the electrode pattern. That is, since the process of disconnection of the mesh electrode for forming the electrode pattern is not required, the process efficiency can be improved.

Also, it is possible to prevent defects from occurring in the process of disconnecting the mesh electrode.

Further, each of the electrode patterns may be formed in the same electrode pattern shape, and all the node regions in the respective electrode patterns may be arranged in a uniform position.

Accordingly, the electrical characteristics of the individual electrode patterns can be made uniform, and it is possible to prevent a specific pattern from being visually recognized from the outside due to the pattern shape difference between the electrode patterns.

Thus, the overall electrical property and visibility of the touch window can be improved.

1 is a top view of a touch window according to an embodiment.
Fig. 2 is an enlarged view of area A in Fig.
3 is an enlarged view of the area B in Fig.
4 to 6 are views for explaining a method of forming an electrode pattern portion of a touch window according to an embodiment.
FIGS. 7 to 9 are views for explaining a process of forming a mesh electrode according to an embodiment.
FIGS. 10 to 13 are views for explaining various types of touch windows according to positions of electrodes.
14 to 16 are views showing a touch device in which a touch window and a display panel are combined according to an embodiment.
17 to 20 are views showing an example of a touch device to which the touch device according to the embodiment is applied.

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

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

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

Hereinafter, a touch window according to an embodiment will be described with reference to the drawings.

Referring to FIG. 1, a touch window according to an embodiment may include a substrate 100 and a plurality of electrode pattern units.

The substrate 100 may be rigid or flexible.

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

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

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

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

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

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

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

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

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

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

The electrode pattern unit 200 may be disposed on the substrate 100. For example, the electrode pattern unit 200 may be disposed on at least one of the effective area AA and the ineffective area UA of the substrate 100.

For example, the electrode pattern unit 200 may be disposed on the effective area AA and the non-effective area UA of the substrate 100. The electrode pattern units 200, Can form a sensing electrode. In addition, the electrode pattern portions disposed on the non-effective region UA can form wiring electrodes.

The electrode pattern portion, i.e., the sensing electrode, disposed on the effective region AA may include a conductive material. For example, the sensing electrode may include a transparent conductive material to allow electricity to flow therethrough without interfering with the transmission of light. For example, the sensing electrode may include indium tin oxide, indium zinc oxide zinc oxide, zinc oxide, zinc oxide, copper oxide, tin oxide, zinc oxide, titanium oxide, and the like. Thus, since the transparent material is disposed on the effective region, the degree of freedom in forming the electrode pattern of the sensing electrode can be improved.

Alternatively, the sensing electrode may comprise a nanowire, a photosensitive nanowire film, a carbon nanotube (CNT), a graphene, a conductive polymer, or a mixture thereof. Accordingly, when manufacturing a touch window in which flexible and / or bending is implemented, the degree of freedom can be improved.

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

Alternatively, the sensing electrode may comprise various metals. For example, the sensing electrode may be made of Cr, Ni, Cu, Al, Ag, or Mo. Gold (Au), titanium (Ti), and alloys thereof. Accordingly, when manufacturing a touch window in which flexible and / or bending is implemented, the degree of freedom can be improved.

The electrode pattern portion, that is, the wiring electrode 400 disposed on the non-effective region UA may include a material the same as or similar to the sensing electrode. The sensing electrode and the wiring electrode may be connected to each other.

Although not shown in the drawings, a printed circuit board including a driving chip may be connected to the wiring electrodes. And may be connected to the printed circuit board through a bonding portion 450 at one end of the wiring electrode. Accordingly, the touch signal sensed by the input device on the sensing electrode is transmitted by the driving chip mounted on the printed circuit board through the wiring portion, and can perform the operation accordingly.

Hereinafter, the sensing electrode disposed on the effective area AA will be mainly described.

The electrode pattern unit may include a first electrode pattern unit 210 and a second electrode pattern unit 220.

In detail, the first electrode pattern part 210 and the second electrode pattern part 220 may be spaced apart from each other.

The first electrode pattern part 210 and the second electrode pattern part 220 may be disposed on the substrate 100 in a direction corresponding to each other, that is, in the same direction.

The first electrode pattern part 210 and the second electrode pattern part 220 may include a plurality of mesh wires and mesh openings formed by the mesh wires.

The line width of the mesh line may be about 0.1 탆 to about 10 탆. The mesh line having a line width of less than about 0.1 탆 may not be formed in a manufacturing process or may short-circuit the mesh line. If the mesh line is more than about 10 탆, the electrode pattern may be visually recognized from the outside and visibility may be deteriorated. Preferably, the linewidth of the mesh wire may be between about 0.5 microns and about 7 microns. More preferably, the linewidth of the mesh wire may be between about 1 [mu] m and about 3.5 [mu] m.

Further, the thickness of the mesh line may be about 100 nm to about 500 nm. If the thickness of the mesh wire is less than about 100 nm, the electrode resistance may increase and the electrical characteristics may deteriorate. If the mesh wire thickness exceeds about 500 nm, the overall thickness of the touch window may become thick and the process efficiency may be deteriorated. Preferably, the thickness of the mesh line may be from about 150 nm to about 200 nm. More preferably, the thickness of the mesh line may be from about 180 nm to about 200 nm.

In addition, the mesh opening OA may be formed in various shapes. The mesh opening OA may have various shapes such as a diamond shape, a pentagon shape, a hexagonal shape, a polygonal shape, or a circular shape, although the embodiment is not limited thereto. In addition, the mesh opening OA may be formed in a regular shape or a random shape.

The width of the mesh opening (OA) may be from about 100 [mu] m to about 500 [mu] m. In detail, the width of the mesh opening (OA) may be about 150 탆 to about 400 탆. More specifically, the width of the mesh opening OA may be between about 200 [mu] m and about 300 [mu] m.

When the width of the mesh opening (OA) is less than about 100 mu m, the mesh lines may contact each other due to an error in the process, and the electrical characteristics may deteriorate. When the width exceeds about 500 mu m, And the visibility may be degraded.

Since the electrode pattern portions have 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 width W1 of the first electrode pattern part 210 and the width W2 of the second electrode pattern part 220 may be the same or similar to each other.

In addition, the mesh openings of the first electrode pattern part 210 and the second electrode pattern part 220 may have a predetermined width W3.

Also, the first electrode pattern part 210 and the second electrode pattern part 220 may be spaced apart by a predetermined width W4.

The electrode pattern units 200 may have a width W1 of the first electrode pattern unit 210 and a width W4 of the first electrode pattern unit 210 and the second electrode pattern unit 220, (W1 + W4) of the first length (D1) defined by the first length (D1). A second length D2 may be defined as a width W3 of the mesh opening of the first electrode pattern part 210 and the second electrode pattern part 220. [

The width W2 of the second electrode pattern part 210 and the width W4 of the first electrode pattern part 210 and the second electrode pattern part 220, (W2 + W4) can be defined. A second length D2 may be defined as a width W3 of the mesh opening of the first electrode pattern part 210 and the second electrode pattern part 220. [

At this time, the first length D1 and the second length D2 may satisfy the following equation (1).

[Equation 1]

First length = second length * 2n (where n is a positive integer)

In addition, the second length D2 and the second length D3 may satisfy the following equation (1).

[Equation 1]

Third length = second length * 2n (where n is a positive integer)

That is, the sum of the width of the first electrode pattern part 210 and the width of the first electrode pattern part 210 and the second electrode pattern part 220 is greater than the sum of the width of the first electrode pattern part 210, The width of the second electrode pattern portion 220 may be defined to be 2n times the width of the mesh opening portion of the second electrode pattern portion 220. The width of the second electrode pattern portion 220 and the width of the first electrode pattern portion 210, The sum of the spacing widths of the first electrode pattern part 220 and the second electrode pattern part 220 may be defined as a multiple of 2 with respect to the width of the mesh opening parts of the first electrode pattern part 210 and the second electrode pattern part 220.

Accordingly, the electrode pattern portions disposed on the substrate can be formed with a uniform mesh opening width, a width of the electrode pattern portion, and a separation distance of the electrode pattern portions, thereby improving the overall visibility of the touch window.

In addition, since each length is formed in a multiple of two at the time of the process, the process can be easily performed, and the process efficiency can be improved.

2 and 3, the first electrode pattern part 210 may include a first mesh line LA1 and the second electrode pattern part 220 may include a second mesh line LA2. .

The first electrode pattern portion 210 may include a first node region N1 formed by intersecting the first mesh lines LA1. The second electrode pattern portion 220 may include a second node region N2 formed by intersecting the first mesh lines LA2.

The first electrode pattern portion 210 may have imaginary first extension lines L1 extending from the first node regions N1 and the second electrode pattern portion 220 may have the second node regions N1, Imaginary second extension lines L2 can be formed in which the protrusions N2 extend.

The first extension line L1 and the second extension line L2 may be formed in a straight line. That is, the first node regions N1 of the first electrode pattern portion 210 may overlap with the first extension line L1 of the straight line. In addition, the second node regions N2 of the second electrode pattern portion 220 may be overlapped with the second extended line L2 of the straight line.

The first extension line L1 and the second extension line L2 may extend in a direction corresponding to each other. That is, the first extension line L1 and the second extension line L2 may be the same or similar to each other Lt; / RTI >

In addition, the first extension line L1 and the second extension line L2 may extend in parallel. That is, the first extension line L1 and the second extension line L2 may extend in parallel to each other while extending in the same or similar directions.

Accordingly, each of the node regions formed in one electrode pattern portion can be formed at a predetermined position. Thus, the electrical characteristics of the respective electrode pattern portions can be made uniform, and the overall electrical characteristics of the touch window can be made uniform.

The first mesh lines disposed in the first electrode pattern unit 210 and the second mesh lines disposed in the second electrode pattern unit 220 may have the same shape. In detail, the first mesh lines disposed in the first electrode pattern unit 210 and the second mesh lines disposed in the second electrode pattern unit 220 may be formed in the same pattern. More specifically, when the first mesh lines disposed in the first electrode pattern unit 210 and the second mesh lines disposed in the second electrode pattern unit 220 are overlapped with each other, the first mesh lines and the second mesh lines The second mesh lines may be formed to overlap with each other.

The contact area between the first mesh lines disposed in the first electrode pattern part 210 and the substrate 100 and the second mesh lines disposed in the second electrode pattern part 220 are different from the contact area between the first mesh lines and the substrate 100, The contact area between the first mesh lines disposed in the first electrode pattern part 210 and the substrate 100 is different from the contact area between the first mesh lines disposed in the second electrode pattern part 220 The contact area between the second mesh lines and the substrate 100 may be the same or similar.

That is, the area of the electrode disposed in the first electrode pattern part 210 may be the same as or similar to the area of the electrode disposed in the second electrode pattern part 220.

Thus, the electrical characteristics of each electrode pattern portion can be uniformly maintained, and the overall electrical characteristics of the touch window can be made uniform.

Further, the electrode pattern shapes of the respective electrode pattern portions are arranged to be similar to each other, so that the electrode pattern can be prevented from being visually recognized from outside, and the overall visibility of the touch window can be improved.

In addition, since the areas where the electrode pattern parts disposed on each effective area are connected to the electrode pattern parts disposed on the ineffective area are arranged at predetermined positions in each electrode pattern part, the positions of the connection areas are made uniform .

Hereinafter, a method of manufacturing the electrode pattern portion of the touch window according to the embodiment will be described with reference to FIG.

Referring to FIG. 4, a unit electrode pattern region UP having the same size is formed on the effective region of the substrate 100. Accordingly, a plurality of unit electrode pattern subregions may be formed on the substrate 100.

Next, referring to FIGS. 5 and 6, each unit electrode pattern portion including mesh lines is disposed in each unit electrode pattern sub-region UP. Accordingly, the sensing electrode pattern portions including the mesh lines can be formed on the effective region AA of the substrate.

The electrodes including the mesh line may be formed by the following processes.

Referring to FIG. 7, the mesh electrode according to the embodiment can form a mesh-shaped electrode by disposing a metal layer M on the front surface of the substrate 100 and etching the metal layer M into a mesh shape . For example, a metal layer M such as copper (Cu) is deposited on the entire surface of a substrate 100 such as poly (ethylene terephthalate) (PET), and the copper layer is etched to form an embossed mesh A copper metal mesh electrode can be formed.

8, a mesh electrode according to an embodiment may be formed by forming a resin layer R including a UV resin or a thermosetting resin layer on a substrate 100, The metal paste MP may be filled in the depressed pattern. At this time, the engraved pattern of the resin layer can be formed by imprinting a mold having a relief pattern.

The metal paste 340 may be a metal paste including the metal described above. Accordingly, by filling the metal paste in the mesh-shaped intaglio pattern P and curing it, a mesh-shaped metal mesh electrode can be formed

9, a mesh electrode according to an embodiment may be formed by forming a resin layer R including a UV resin or a thermosetting resin layer on a substrate 100, After forming the embossed nanopatterns and micropatterns, the metal can be sputtered onto the resin layer.

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

Subsequently, the metal layer (M) formed on the nano pattern (P1) and the micro pattern (P2) is etched to remove only the metal layer formed on the nano pattern, and only the metal layer formed on the micro pattern is left, An electrode can be formed.

At this time, when the metal layer is etched, a difference in etching rate may occur depending on the difference in bonding area between the nano pattern (P1) and the micro pattern (P2) and the metal layer. That is, since the area of the contact between the micropattern and the metal layer is larger than the area of contact between the nano pattern and the metal layer, the metal layer M formed on the micropattern is less etched, The metal layer remains and the metal layer formed on the nano pattern is etched and removed, so that a metal electrode of a micropatterned embossed mesh shape can be formed on the substrate 100.

The touch window according to the embodiment can easily form the mesh electrode of the electrode pattern. That is, since the process of disconnection of the mesh electrode for forming the electrode pattern is not required, the process efficiency can be improved.

Also, it is possible to prevent defects from occurring in the process of disconnecting the mesh electrode.

Further, each of the electrode patterns may be formed in the same electrode pattern shape, and all the node regions in the respective electrode patterns may be arranged in a uniform position.

Accordingly, the electrical characteristics of the individual electrode patterns can be made uniform, and it is possible to prevent a specific pattern from being visually recognized from the outside due to the pattern shape difference between the electrode patterns.

Thus, the overall electrical property and visibility of the touch window can be improved.

Hereinafter, various types of touch windows according to positions of the electrodes will be described with reference to FIGS. 10 to 13. FIG.

Referring to FIG. 10, a touch window according to an embodiment may include a substrate 100 and a first sensing electrode 310 and a second sensing electrode 320 on the substrate 100.

The first sensing electrode 310 may extend in one direction on the effective area AA of the substrate 100. In detail, the first sensing electrode 310 may be disposed on one side of the substrate 100.

The second sensing electrode 320 may be disposed on one side of the substrate 100 while extending in a direction different from the first direction on the effective area AA of the substrate 100. That is, the first sensing electrode 310 and the second sensing electrode 320 may extend in different directions on the same surface of the substrate 100.

The first sensing electrode 310 and the second sensing electrode 320 may be insulated from each other on the substrate 100. A plurality of first unit sensing electrodes constituting the first sensing electrode 310 are connected to each other and a plurality of second unit sensing electrodes constituting the second sensing electrode 320 are spaced apart from each other . The second unit sensing electrodes are connected to each other by a bridge electrode 330 and an insulating layer 350 is disposed at a portion where the bridge electrode 330 is disposed. The first sensing electrode 310, The electrodes 320 may short-circuit each other.

Accordingly, the first sensing electrode 310 and the second sensing electrode 320 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 310 and the second sensing electrode 320 may be disposed on the same surface of the cover substrate. Alternatively, a separate cover substrate may be further disposed on the substrate 100.

A first wiring electrode 410 and a second wiring electrode 420 may be connected to the first sensing electrode 310 and the second sensing electrode 320, respectively, in the non-effective region UA.

11, another type of touch window includes a cover substrate 101 and a substrate 100, and includes a first sensing electrode 310 on the cover substrate 101, a second sensing electrode on the substrate 100, Electrode 320 as shown in FIG.

A first sensing electrode 310 extending in one direction and a first wiring electrode 410 connected to the first sensing electrode 310 are disposed on one surface of the cover substrate 101, A second sensing electrode 320 extending in a direction different from the first direction and a second wiring electrode 420 connected to the second sensing electrode 320 may be disposed on one side of the first sensing electrode 320.

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 310 extending in one direction and a first wiring electrode 410 connected to the first sensing electrode 310 are disposed on one surface of the substrate 100, A second sensing electrode 320 extending in a direction different from the first direction and a second wiring electrode 420 connected to the second sensing electrode 320 may be disposed on the other surface of the first sensing electrode 320.

12, a touch window according to another type includes a cover substrate 101, a first substrate 110 and a second substrate 120, 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 310 extending in one direction and a first wiring electrode 410 connected to the first sensing electrode 310 are disposed on one surface of the first substrate 110, A second sensing electrode 320 extending in a direction different from the first direction and a second wiring electrode 420 connected to the second sensing electrode 320 may be disposed on one surface of the substrate 120.

Referring to FIG. 13, another type of touch window may include a substrate 100, a first sensing electrode 310 and a second sensing electrode 320 on a substrate.

The first sensing electrode 310 and the second sensing electrode 320 may be disposed on the same side of the substrate 100. For example, the first sensing electrode 310 and the second sensing electrode 320 may be spaced apart from each other on the same surface of the substrate 100.

The first sensing electrode 310 may include a first wiring electrode 410 connected to the first sensing electrode 310 and a second wiring electrode 420 connected to the second sensing electrode 320. 410 may be disposed on the effective region and the ineffective region of the substrate 100 and the second wiring electrode 420 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. 14, the touch device according to the embodiment may include a touch window disposed on the display panel 900.

Referring to FIG. 14, the touch device may be formed by combining the substrate 100 and the display panel 900. 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. 15, 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. 15, 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. 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, and the cover substrate and the display panel 900 may be bonded together.

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. 16, 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. 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. 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. 17 to 20. FIG.

Referring to Fig. 17, 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. 18, 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. 19, 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. 20, 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 (14)

A substrate including a valid region and a non-valid region; And
And an electrode pattern portion disposed on at least one of the effective region and the non-effective region,
Wherein the electrode pattern portion includes a first electrode pattern portion and a second electrode pattern portion spaced apart from the first electrode pattern portion,
Wherein the first electrode pattern portion and the second electrode pattern portion include a plurality of mesh lines and a mesh opening formed by the mesh lines,
A first length defined by a width of the first electrode pattern portion and a spacing distance between the first electrode pattern portion and the second electrode pattern portion and a second length defined by a width of the mesh opening satisfy a following expression .
[Equation]
First length = second length * 2n (where n is a positive integer) The method according to claim 1,
The electrode pattern
A sensing electrode disposed on the effective region; And
And a wiring electrode disposed on the non-effective region. The method according to claim 1,
Wherein the first electrode pattern portion and the second electrode pattern portion extend in directions corresponding to each other. The method according to claim 1,
Wherein the first electrode pattern portion includes first mesh lines,
Wherein the second electrode pattern portion includes second mesh lines,
Wherein the first electrode pattern portion includes first node regions in which first mesh lines intersect,
Wherein the second electrode pattern portion includes second node regions in which second mesh lines intersect,
Wherein a first extension line of the first node regions and a second extension line of the second node regions are formed in a straight line. 5. The method of claim 4,
Wherein the first extension line and the second extension line extend in mutually corresponding directions. 5. The method of claim 4,
Wherein the first extension line and the second extension line extend in parallel. The method according to claim 1,
Wherein the second length is between 100 and 500 mu m. The method according to claim 1,
Wherein a mesh shape of the first electrode pattern part and a mesh shape of the second electrode pattern part correspond to each other. The method according to claim 1,
Wherein the first electrode pattern portion includes first mesh lines,
Wherein the second electrode pattern portion includes second mesh lines,
Wherein a first contact area of the first mesh lines and the substrate disposed in the first electrode pattern part is equal to a second contact area of the second mesh lines disposed in the second electrode pattern part and a second contact area of the substrate Touch window. A substrate including a valid region and a non-valid region; And
And an electrode pattern portion disposed on at least one of the effective region and the non-effective region,
Wherein the electrode pattern includes a first electrode pattern part and a second electrode pattern part spaced from the first electrode pattern part,
Wherein the first electrode pattern portion includes first mesh lines,
Wherein the second electrode pattern portion includes second mesh lines,
Wherein the first electrode pattern portion includes first node regions in which first mesh lines intersect,
Wherein the second electrode pattern portion includes second node regions in which second mesh lines intersect,
Wherein a first extension line of the first node regions and a second extension line of the second node regions are formed in a straight line. 11. The method of claim 10,
Wherein the first extension line and the second extension line extend in parallel. 11. The method of claim 10,
The electrode pattern portion includes:
A sensing electrode disposed on the effective region; And
And a wiring electrode disposed on the non-effective region. A substrate including a valid region and a non-valid region; And
And an electrode pattern portion disposed on at least one of the effective region and the non-effective region,
Wherein the electrode pattern portion includes a first electrode pattern portion and a second electrode pattern portion spaced apart from the first electrode pattern portion,
Wherein the first electrode pattern portion includes first mesh lines,
Wherein the second electrode pattern portion includes second mesh lines,
Wherein a first contact area of the first mesh lines and the substrate disposed in the first electrode pattern part is equal to a second contact area of the second mesh lines disposed in the second electrode pattern part and a second contact area of the substrate Touch window. 14. The method of claim 13,
The electrode pattern portion includes:
A sensing electrode disposed on the effective region; And
And a wiring electrode disposed on the non-effective region.

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