KR20160015794A - Touch window - Google Patents

Abstract

One embodiment of the present invention provides a touch window. The touch window includes a substrate and an electrode on the substrate. The electrode includes a first mesh line and a second mesh line. A size of an intersecting area of the first mesh line and the second mesh line is different from a size of at least one from the first mesh line and the second mesh line. The touch window prevents a defect of a mesh electrode, caused by electrostatic discharge (ESD), thereby improving reliability of the touch window.

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

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

In order to solve such problems, active researches on alternative electrodes have been carried out. For example, studies have been made to replace ITO by forming an electrode material into a mesh shape.

Such a mesh-shaped electrode can reduce the resistance problem in a touch window having a large-sized size, but the line width or thickness of each of the mesh lines may be partially non-uniform. In such a non-uniform line width or thickness portion, There is a problem of disconnection.

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

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

A touch window according to an embodiment includes: a substrate; And an electrode on the substrate, wherein the electrode includes a first mesh line and a second mesh line, and a size of a crossing region of the first mesh line and the second mesh line is larger than a size of the first mesh line and the second mesh line Is different from the size of at least one of the mesh lines.

The touch window according to the embodiment can have improved reliability. The ESD flowing into the touch window may flow through the mesh line, and the mesh line may be cracked or short-circuited due to ESD.

Such an ESD can be moved to a portion where the line width is small, the thickness is small, the resistance is large, or the line width or thickness becomes uniform. As a result, the cross-sectional area of the cross-sectional area of the electrode is smaller than that of the mesh lines, as the mesh lines are overlapped with each other, that is, in the crossing area of the mesh lines extending in different directions, Thereby, there is a problem that the ESD is moved to the intersection area, and the mesh line is short-circuited or missing in the intersection area.

Accordingly, in the touch window according to the embodiment, the line width of the crossing region to which the mesh lines are connected is made larger by the mesh line, and the cross-sectional area of the crossing region is made larger than the cross-sectional area of the mesh lines. So that the mesh wire can be prevented from being disconnected.

Accordingly, the touch window according to the embodiment can prevent the shorting of the mesh electrode by ESD, thereby improving the reliability of the touch window as a whole.

1 is a plan view of a touch window according to an embodiment.
Fig. 2 is an enlarged plan view showing the area A of Fig. 1 enlarged.
Figs. 3 and 4 are views showing another enlarged plan view in which the area A in Fig. 1 is enlarged.
5 is a cross-sectional view of the BB 'region of FIG.
FIG. 6 is a cross-sectional view of the CC 'region of FIG. 2; FIG.
FIGS. 7 to 10 illustrate various types of touch windows according to an embodiment.
11 to 16 are views for explaining a touch device including a touch window according to an embodiment.
17 to 20 are views for explaining an example of a touch device including a touch window according to an embodiment.

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.

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 and an electrode 200.

The substrate 100 may support the electrode 200. That is, the substrate 100 may be a supporting substrate.

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 tempered glass such as soda lime glass or aluminosilicate glass, or may include plastic such as polyethylene terephthalate (PET).

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 200 may be disposed on the substrate 100. The electrode 200 may be disposed directly on the substrate 100 or on the substrate 300 disposed on the substrate 100.

The electrode 200 may include a sensing electrode 210 and a wiring electrode 220.

For example, the sensing electrode 210 may include at least one material selected from the group consisting of indium tin oxide (ITO), indium zinc oxide for example, metal oxides such as indium zinc oxide, copper oxide, tin oxide, zinc oxide, and titanium oxide.

Alternatively, the sensing electrode 210 may include a nanowire, a photosensitive nanowire film, a carbon nanotube (CNT), a graphene, or a conductive polymer.

Alternatively, the sensing electrode 210 may include various metals. For example, the sensing electrode 210 may be formed of a metal such as Cr, Ni, Cu, Au, Ti, Al, Ag, Mo, And at least one of the metals of these alloys.

The sensing electrode 210 may be disposed in a mesh shape. In detail, the sensing electrode 210 may include mesh lines intersecting with each other, and the overall shape of the sensing electrode 210 may have a mesh shape by the mesh lines.

Here, the mesh lines may be defined as an electrode structure constituting one unit sensing electrode. In detail, the mesh lines are formed in a desired pattern, for example, a bar pattern as shown in FIG. 1, or a polygonal pattern such as a diamond pattern. A plurality of mesh lines may be disposed on one unit sensing electrode so as to intersect with each other.

The mesh shape means a shape formed by intersecting the mesh lines, and may mean a net shape. That is, the substrate 100 may include openings through which the one side of the substrate is exposed by the openings and the mesh lines where the mesh lines intersecting each other are disposed.

The mesh wires may extend in at least two directions and intersect with each other. For example, as shown in FIG. 2, the mesh wires may extend in two directions and intersect with each other, or may extend in three or more directions as shown in FIGS. 3 and 4, and may intersect with each other.

2 through 6, the sensing electrode 220 may include mesh lines 230 intersecting with each other. In detail, the sensing electrode 220 may include the first mesh line 231 and the second mesh line 232 which extend in different directions and intersect with each other.

2, the sensing electrode 220 includes a plurality of first mesh lines 231 and second mesh lines 232 intersecting each other in a mesh shape, and the first mesh lines 231 And the mesh openings OA between the mesh lines 230 may be formed by the second mesh lines 232. That is, the mesh opening may be an opening through which one side of the substrate is exposed.

 The line width of at least one of the first mesh line 231 and the second mesh line 232 may be about 0.1 μm to about 10 μm. If the line width of the mesh line LA is less than about 0.1 mu m, it may be difficult to implement and the process efficiency may be deteriorated. If the line width exceeds about 10 mu m, the sensing line pattern may be visually recognized from the outside by the mesh lines The visibility may be lowered. Preferably, the line width of at least one mesh line of the first and second mesh lines 231 and 232 may be about 1 탆 to about 5 탆. Alternatively, the line width of at least one of the first mesh line 231 and the second mesh line 232 may be about 1.5 μm to about 3 μm.

The mesh opening OA may be formed in various shapes. For example, the mesh opening OA may be formed in a square shape, a diamond shape, or a hexagonal polygonal shape as shown in FIG. 3, as shown in FIG. Further, the present invention is not limited to this, and the mesh opening OA may have various shapes such as a pentagon 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. 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 if the sensing electrode is applied to a touch window of a large size.

Referring to FIG. 2, the first mesh line 231 and the second mesh line 232 may extend to intersect with each other. Accordingly, a region where the first mesh line 231 and the second mesh line 232 meet, that is, a crossing region 240 may be formed in the mesh line 230.

Referring to FIGS. 3 and 4, the first mesh line 231, the second mesh line 232, and the intersection region 240 may be disposed on the substrate 100. For example, a substrate 300 including a UV resin or a thermosetting resin is disposed on the substrate 100, and the first mesh line 231, the second mesh line 232, May be disposed on the substrate 300.

For example, the substrate 300 may be a resin layer including a UV resin or a thermosetting resin. Patterns P filled with the electrode material may be formed on the substrate 300. That is, the first patterns P1 may be formed on the base material 300 in order to arrange the mesh lines, and the second patterns P2 may be formed on the base material 300 to arrange the reinforcement lines 240.

The first pattern P1 and the second pattern P2 may be formed using a positive or negative mold. For example, when a relief pattern is formed on the base material 300, the relief mold may be imprinted to form a pattern. In the case of forming the relief pattern as shown in FIGS. 3 and 4, .

The first pattern P1 and the second pattern P2 may be formed simultaneously or after the first pattern P1 is formed, the second pattern P2 may be formed.

The first pattern P1 and the second pattern P2 may contain at least one of chromium (Cr), nickel (Ni), copper (Cu), gold (Au), titanium ), Molybdenum (Mo), and alloys thereof, thereby forming the first mesh line (231), the second mesh line (232), and the intersection region (240) The electrode 200 may be formed.

At least one mesh line of the first mesh line 231 and the second mesh line 232 and the size of the intersection area 240 may be different from each other. For example, the size of the mesh line of at least one of the first mesh line 231 and the second mesh line 232 may be smaller than the size of the intersection area 240. That is, the intersection area 240 may be larger than the size of at least one mesh line of the first mesh line 231 and the second mesh line 232.

The width of the intersection region 240 may be greater than the width of at least one of the first mesh line 231 and the second mesh line 232.

5 and 6, the line width of at least one of the first mesh line 231 and the second mesh line 232 may have a first line width W1, The line width of the intersection region 240 may have a second line width W2. The second line width W2 may be greater than the first line width W1.

The second line width W2 may be less than twice the first line width W1. For example, the second line width W2 may be greater than the first line width W1 and less than twice the first line width W1.

When the second line width W2 is smaller than the first line width W1, ESD easily moves in a crossing region having a smaller width than the mesh lines, shorting or cracking occurs in the crossing region of the mesh lines, . When the second line width W2 is greater than twice the first line width W1, the crossing area is shifted from the outside due to the difference in size between the first line width W1 and the second line width W2 And visibility may be deteriorated.

The cross-sectional area of the intersection region 240 may be greater than the cross-sectional area of at least one of the first mesh line 231 and the second mesh line 232.

5 and 6, the cross-sectional area of at least one of the first mesh line 231 and the second mesh line 232 may have a first cross-sectional area CR1, The cross-sectional area of the crossing area 240 may have a second ending CR2. In addition, the second cross-sectional area CR2 may be greater than the first cross-sectional area CR1.

The second cross-sectional area CR2 may be less than twice the first cross-sectional area CR1. For example, the second cross-sectional area CR2 may be greater than the first cross-sectional area CR1 and less than twice the first cross-sectional area CR1.

When the second cross-sectional area CR2 is smaller than the first cross-sectional area CR1, the ESD is moved to the cross-sectional area having a cross-sectional area smaller than that of the mesh lines, shorting or cracking occurs in the crossing area of the mesh lines, have. In addition, when the second cross-sectional area CR2 exceeds twice the first cross-sectional area CR1, the cross-sectional area is increased from the outside due to the difference in size between the first cross-sectional area CR1 and the second cross- And visibility may be deteriorated.

The thickness of the intersection region 240 may be the same as or different from the thickness of at least one of the first mesh line 231 and the second mesh line 232.

For example, the second thickness T2 of the intersection region 240 may be less than the first thickness T1 of at least one of the first and second mesh lines 231 and 232 The second line width W2 of the intersection area 240 is greater than the first line width W1 of at least one of the first and second mesh lines 231 and 232, The second cross-sectional area CR2 of the region 240 may be greater than the first cross-sectional area CR1 of at least one of the first mesh line 231 and the second mesh line 232. [

The crossing regions 240 may be formed in various shapes. For example, the intersection region 240 may have a shape different from that of at least one of the first mesh line 231 and the second mesh line 232.

For example, the intersection region 240 may be formed in various shapes such as a polygonal shape or a circular shape.

The touch window according to the embodiment can have improved reliability. The ESD flowing into the touch window may flow through the mesh line, and the mesh line may be cracked or short-circuited due to ESD.

This ESD can be facilitated by moving to a portion where the line width is small, the thickness is small, the resistance is large, or the line width or thickness becomes uniform. As a result, the cross-sectional area of the cross-sectional area of the electrode is smaller than that of the mesh lines, as the mesh lines are overlapped with each other, that is, in the crossing area of the mesh lines extending in different directions, Thereby, there is a problem that the ESD is moved to the intersection area, and the mesh line is short-circuited or missing in the intersection area.

Accordingly, in the touch window according to the embodiment, the line width of the crossing region to which the mesh lines are connected is made larger by the mesh line, and the cross-sectional area of the crossing region is made larger than the cross-sectional area of the mesh lines. So that the mesh wire can be prevented from being disconnected.

Accordingly, the touch window according to the embodiment can prevent the shorting of the mesh electrode by ESD, thereby improving the reliability of the touch window as a whole.

The wiring electrode 220 may be connected to the sensing electrode 210. One end of the wiring electrode 220 is connected to the sensing electrode 210 and the other end of the wiring electrode 220 is connected to a printed circuit board to transmit a touch signal sensed from the sensing electrode to a driving chip mounted on a printed circuit board have.

The wiring electrode 220 may include a material similar to the sensing electrode 210.

In addition, the wiring electrode 220 may include a mesh shape. Further, the mesh lines of the wiring electrodes may include a crossing area, and such crossing areas may be formed to be larger than the cross-sectional area of the mesh lines, as described above. Since the description of the crossing area is similar to that described above, the following description is omitted.

7 to 10 are views showing various types of touch windows according to an embodiment.

7, the touch window 10 according to the embodiment may include a first substrate 1100 and a first sensing electrode 2100 and a second sensing electrode 2200 on the first substrate 1100 have.

The first sensing electrode 2100 may extend in the first direction on the effective area AA of the first substrate 1100. In detail, the first sensing electrode 2100 may be disposed on one side of the first substrate 1100.

The second sensing electrode 2200 may extend in the second direction on the effective area AA of the first substrate 1100. In detail, the second sensing electrode 2200 may be disposed on one surface of the first substrate 1100 while extending in the second direction, which is different from the first direction. That is, the first sensing electrode 2100 and the second sensing electrode 2200 may extend in different directions on the same surface of the first substrate 1100.

The first sensing electrode 2100 and the second sensing electrode 2200 may be insulated from each other on the first substrate 1100. The first sensing electrodes 2100 are connected to each other by a first connecting electrode 2110 and an insulating layer 2500 is disposed on the first connecting electrode 2110. The insulating layer 2500 is formed on the insulating layer 2500, A second connection electrode 2210 may be disposed on the second sensing electrode 2200 to connect the second sensing electrodes 2200.

Accordingly, the first sensing electrode 2100 and the second sensing electrode 2200 are not in contact with each other, but are insulated from each other on the same surface of the first substrate 1100, that is, on one side of the effective area AA, .

The first substrate 1100 may be a cover substrate. That is, the first sensing electrode 2100 and the second sensing electrode 2200 may be disposed on the same side of the cover substrate. Alternatively, a cover substrate may be further disposed on the first substrate 1100.

The first wiring electrode 3100 and the second wiring electrode 3200 may be connected to the first sensing electrode 2100 and the second sensing electrode 2200 in the non-effective region UA, respectively.

Also, at least one of the first sensing electrode 2100, the second sensing electrode 2200, the first wiring electrode 3100, and the second wiring electrode 3200 may include a mesh shape .

Referring to FIG. 8, the touch window 10 according to the embodiment includes a first substrate 1100 and a second substrate 1200, and includes a first sensing electrode on the first substrate 1100, And a second sensing electrode on the second sensing electrode 1200.

In detail, a first sensing electrode 2100 extending in one direction and a first wiring electrode 3100 connected to the first sensing electrode 2100 are disposed on one surface of the first substrate 1100, A second sensing electrode 2200 extending in a direction different from the first direction and a second wiring electrode 3200 connected to the second sensing electrode 2200 may be disposed on one surface of the substrate 1200.

At least one of the first sensing electrode 2100, the second sensing electrode 2200, the first wiring electrode 3100, and the second wiring electrode 3200 may be formed of a mesh.

9, a touch window 20 according to an embodiment includes a first substrate 1100 and a second substrate 1200, and a first sensing electrode and a second sensing electrode on the second substrate 1200, . ≪ / RTI >

In detail, a first sensing electrode 2100 extending in one direction and a first wiring electrode 3100 connected to the first sensing electrode 2100 are disposed on one surface of the second substrate 1200, A second sensing electrode 2200 extending in a direction different from the first direction and a second wiring electrode 3200 connected to the second sensing electrode 2200 may be disposed on the other surface of the substrate 1200.

At least one of the first sensing electrode 2100, the second sensing electrode 2200, the first wiring electrode 3100, and the second wiring electrode 3200 may be formed of a mesh.

10, a touch window 20 according to an embodiment includes a first substrate 1100, a second substrate 1200, and a third substrate 1300, and the first window 1100, the second substrate 1200, A sensing electrode and a second sensing electrode on the third substrate 1300.

In detail, a first sensing electrode 2100 extending in one direction and a first wiring electrode 3100 connected to the first sensing electrode 2100 are disposed on one surface of the second substrate 1200, A second sensing electrode 2200 extending in a direction different from the first direction and a second wiring electrode 3200 connected to the second sensing electrode 2200 may be disposed on one surface of the substrate 1300.

At least one of the first sensing electrode 2100, the second sensing electrode 2200, the first wiring electrode 3100, and the second wiring electrode 3200 may be formed of a mesh.

The touch window described above can be applied to a touch device in combination with a display panel.

Referring to FIGS. 11 and 12, the touch device according to the embodiment may include a touch window integrally formed with the display panel 700. That is, the substrate supporting at least one sensing electrode may be omitted.

In detail, at least one sensing electrode may be formed on at least one surface of the display panel 700. The display panel 700 includes a first substrate 701 and a second substrate 702. That is, at least one sensing electrode may be formed on at least one surface of the first substrate 701 or the second substrate 702.

When the display panel 700 is a liquid crystal display panel, the display panel 700 includes a first substrate 701 including a thin film transistor (TFT) and a pixel electrode, a second substrate 701 including color filter layers, The liquid crystal layer 702 may be bonded together with the liquid crystal layer interposed therebetween.

The display panel 700 may include a thin film transistor, a color filter, and a black matrix formed on a first substrate 701, and a second substrate 702 may be adhered to the first substrate 101 with a liquid crystal layer interposed therebetween Or a liquid crystal display panel having a COT (color filter on transistor) structure. That is, a thin film transistor may be formed on the first substrate 701, 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 701 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 700 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 700. [

When the display panel 700 is an organic light emitting display panel, the display panel 700 includes a self-luminous element that does not require a separate light source. In the display panel 700, a thin film transistor is formed on a first substrate 701, 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. The organic light emitting device may further include a second substrate 702 serving as an encapsulation substrate for encapsulation.

At this time, at least one sensing electrode may be formed on the upper surface of the substrate disposed above. Although the sensing electrode is formed on the upper surface of the second substrate 702 in the drawing, when the first substrate 701 is disposed on the upper surface, at least one sensing electrode 702 is formed on the upper surface of the first substrate 701, Can be formed.

Referring to FIG. 11, a first sensing electrode 2100 may be formed on the upper surface of the display panel 700. Also, a first wiring connected to the first sensing electrode 2100 may be formed. A touch substrate 105 having a second sensing electrode 2200 and a second wiring may be formed on the display panel 700 on which the first sensing electrode 2100 is formed. A first adhesive layer 66 may be formed between the touch substrate 105 and the display panel 700.

A cover substrate 400 is shown in which a second sensing electrode 2200 is formed on an upper surface of a touch substrate 105 and a second adhesive layer 67 is disposed on the touch substrate 105 , But is not limited thereto. The second sensing electrode 2200 may be formed on the rear surface of the touch substrate 105, and the touch substrate 105 may serve as a cover substrate.

The first sensing electrode 2100 is formed on the upper surface of the display panel 700 and the touch substrate 105 supporting the second sensing electrode 2200 is connected to the display panel 700 And the structure in which the touch panel 105 and the display panel 700 are attached to each other is sufficient.

In addition, the touch substrate 105 may be a polarizing plate. That is, the second sensing electrode 2200 may be formed on the upper surface or the rear surface of the polarizing plate. Accordingly, the second sensing electrode and the polarizing plate may be integrally formed.

In addition, the touch panel 105 may further include a polarizing plate. At this time, the polarizing plate may be disposed below the touch substrate 105. For example, the polarizing plate may be disposed between the touch substrate 105 and the display panel 700. The polarizing plate may be disposed on the touch substrate 105.

The polarizing plate may be a linear polarizing plate or an external light reflection preventing polarizing plate. For example, when the display panel 700 is a liquid crystal display panel, the polarizer may be a linear polarizer. In addition, when the display panel 700 is an organic light emitting display panel, the polarizing plate may be an external light reflection preventing polarizing plate.

Referring to FIG. 12, a first sensing electrode 2100 and a second sensing electrode 2200 may be formed on the upper surface of the display panel 700. In addition, a first wiring connected to the first sensing electrode 2100 and a second wiring connected to the second sensing electrode 2200 may be formed on the upper surface of the display panel 700.

An insulating layer 600 may be formed on the first sensing electrode 2100 to expose the second sensing electrode 2200. A bridge electrode 230 for connecting the second sensing electrode 2200 may be further formed on the insulating layer 600.

The first sensing electrode 2100, the first wiring, and the second wiring are formed on the upper surface of the display panel 700, and the first sensing electrode 2100 and the first wiring are insulated from each other. Layer may be formed. A second sensing electrode 2200 may be formed on the insulating layer and a connection unit may be formed to connect the second sensing electrode 2200 to the second wiring.

Also, a first sensing electrode 2100, a second sensing electrode 2200, a first wiring, and a second wiring may be formed in the effective region on the upper surface of the display panel 700. The first sensing electrode 2100 and the second sensing electrode 2200 may be spaced apart from each other and disposed adjacent to each other. That is, the insulating layer, the bridge electrode, and the like may be omitted.

That is, it is sufficient that the first sensing electrode 2100 and the second sensing electrode 2200 are formed on the display panel 700 without a separate sensing electrode supporting substrate.

A cover substrate 400 may be disposed on the display panel 700 with an adhesive layer 68 interposed therebetween. At this time, a polarizing plate may be disposed between the display panel 700 and the cover substrate 400.

The touch device according to the embodiment of the present invention 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.

Next, a touch device according to another embodiment of the present invention will be described with reference to FIGS. 13 to 16. FIG. The description overlapping with the above-described embodiments may be omitted. The same reference numerals are assigned to the same components.

13 to 16, the touch device according to the present embodiment may include a touch window integrally formed with the display panel. That is, the substrate supporting at least one sensing electrode may be omitted, and the substrate supporting the sensing electrode may be omitted altogether.

A sensing electrode disposed in the effective area and serving as a sensor for sensing a touch and a wiring for applying an electrical signal to the sensing electrode may be formed inside 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 701 and a second substrate 702. At least one of the first sensing electrode 2100 and the second sensing electrode 2200 is disposed between the first substrate 701 and the second substrate 702. That is, at least one sensing electrode may be formed on at least one surface of the first substrate 701 or the second substrate 702.

13 to 15, a first sensing electrode 2100, a second sensing electrode 2200, a first wiring and a second wiring are formed between the first substrate 701 and the second substrate 702, . That is, the first sensing electrode 2100, the second sensing electrode 2200, the first wiring, and the second wiring may be disposed inside the display panel.

13, a first sensing electrode 2100 and a first wiring are formed on the first substrate 701 of the display panel and a second sensing electrode 2200 and a second wiring are formed on the rear surface of the second substrate 702. [ And a second wiring may be formed. Referring to FIG. 16, a first sensing electrode 2100, a second sensing electrode 2200, a first wiring, and a second wiring may be formed on an upper surface of the first substrate 701. An insulating layer 620 may be formed between the first sensing electrode 2100 and the second sensing electrode 2200. Referring to FIG. 17, a first sensing electrode 2100 and a second sensing electrode 2200 may be formed on the rear surface of the second substrate 702. An insulating layer 630 may be formed between the first sensing electrode 2100 and the second sensing electrode 2200.

Referring to FIG. 16, a first sensing electrode 2100 and a first wiring may be formed between the first substrate 701 and the second substrate 702. In addition, the second sensing electrode 2200 and the second wiring may be formed on the touch substrate 106. The touch substrate 106 may be disposed on a display panel including the first substrate 701 and the second substrate 702. That is, the first sensing electrode 2100 and the first wiring are disposed on the inner side of the display panel, and the second sensing electrode 2200 and the second wiring are disposed on the outer side of the display panel.

The first sensing electrode 2100 and the first wiring may be formed on the upper surface of the first substrate 701 or the rear surface of the second substrate 702. An adhesive layer may be formed between the touch substrate 106 and the display panel. At this time, the touch substrate 105 may serve as a cover substrate.

Although the second sensing electrode 2200 is formed on the back surface of the touch substrate 106, the present invention is not limited thereto. The second sensing electrode 2200 may be formed on the upper surface of the touch substrate 106 and a cover substrate may be further disposed between the touch substrate 106 and the adhesive layer.

That is, the present invention is not limited to the drawings, and the structure in which the first sensing electrode 2100 and the first wiring are disposed inside the display panel and the second sensing electrode 2200 and the second wiring are disposed outside the display panel Do.

In addition, the touch substrate 106 may be a polarizing plate. That is, the second sensing electrode 2200 may be formed on the upper surface or the rear surface of the polarizing plate. Accordingly, the second sensing electrode and the polarizing plate may be integrally formed.

In addition, a polarizing plate may be further included in addition to the touch substrate 106. At this time, the polarizing plate may be disposed under the touch substrate 106. For example, the polarizing plate may be disposed between the touch substrate 106 and the display panel. In addition, the polarizer may be disposed on the touch substrate 106.

When the display panel is a liquid crystal display panel, when the sensing electrode is formed on the upper surface of the first substrate 701, 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 702, 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 701, the sensing electrode may be formed with a thin film transistor or an organic light emitting diode.

In the touch device according to the embodiment of the present invention, a separate substrate for supporting the sensing electrode may be omitted. 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 including a fingerprint sensor according to the above-described embodiments is applied will be described with reference to FIGS.

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.

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 (10)

Board; And
An electrode on the substrate,
Wherein the electrode includes a first mesh line and a second mesh line,
Wherein a size of an intersection area of the first mesh line and the second mesh line is smaller than a size of at least one mesh line of the first mesh line and the second mesh line. The method according to claim 1,
Wherein the width of the crossing region is larger than the width of at least one of the mesh lines of the first mesh line and the second mesh line. The method according to claim 1,
Wherein the cross-sectional area of the crossing region is larger than the cross-sectional area of at least one of the first mesh line and the second mesh line. The method according to claim 1,
Wherein the cross-sectional area of the crossing region is greater than a cross-sectional area of at least one of the first mesh line and the second mesh line, and is less than twice the cross- The method according to claim 1,
Wherein the thickness of the crossing region is smaller than the thickness of at least one of the first mesh line and the second mesh line,
The width of the crossing region is larger than the width of at least one of the first mesh line and the second mesh line,
Wherein the cross-sectional area of the crossing region is larger than the cross-sectional area of at least one of the first mesh line and the second mesh line. The method according to claim 1,
Wherein the electrode is made of at least one of chromium (Cr), nickel (Ni), copper (Cu), gold (Au), titanium (Ti) aluminum (Al), silver (Ag), molybdenum (Mo) ≪ / RTI > The method according to claim 1,
Wherein the electrode comprises at least one of a sensing electrode and a wiring electrode. 3. The method of claim 2,
Wherein a width of at least one of the first mesh line and the second mesh line is 1 占 퐉 to 10 占 퐉. The method according to claim 1,
Wherein the shape of the intersection region is different from the shape of at least one mesh line of the first mesh line and the second mesh line. The method according to claim 1,
Further comprising a substrate on said substrate,
An engraved or embossed pattern of a mesh shape is formed on the substrate,
Wherein the electrode is disposed within the pattern.

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