KR101775210B1 - Touch panel - Google Patents

Abstract

A touch panel according to an embodiment includes: a substrate including a valid region and a non-valid region; A sensing electrode on the effective area; A wiring electrode on the non-effective region; And a connection electrode connected to at least one of the sensing electrodes and each of the wiring electrodes, wherein at least one of the sensing electrodes and each of the wiring electrodes includes a plurality of openings, Is separated by the connecting electrode.
According to another embodiment of the present invention, there is provided a touch panel including: a substrate including a valid region and a non-valid region; A sensing electrode on the effective area; And a wiring electrode on the non-effective region, wherein the sensing electrode includes a plurality of openings, and the opening extends in a direction corresponding to a direction in which the sensing electrode extends.

Description

TOUCH PANEL {TOUCH PANEL}

The embodiment relates to a touch panel.

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.

In this touch panel, a sensing electrode may be disposed on a region for sensing a touch, and a wiring electrode connected to the sensing electrode may be disposed on another region.

Such sensing electrodes and wiring electrodes are cracked or scratched due to an external shock or ESD, which causes damage to the electrodes, resulting in disconnection.

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

Embodiments provide a touch panel having improved reliability.

A touch panel according to an embodiment includes: a substrate including a valid region and a non-valid region; A sensing electrode on the effective area; A wiring electrode on the non-effective region; And a connection electrode connected to at least one of the sensing electrodes and each of the wiring electrodes, wherein at least one of the sensing electrodes and each of the wiring electrodes includes a plurality of openings, Is separated by the connecting electrode.

According to another embodiment of the present invention, there is provided a touch panel including: a substrate including a valid region and a non-valid region; A sensing electrode on the effective area; And a wiring electrode on the non-effective region, wherein the sensing electrode includes a plurality of openings, and the opening extends in a direction corresponding to a direction in which the sensing electrode extends.

In the touch panel according to the embodiment, an opening is formed in the sensing electrode or the wiring electrode, and a connection electrode connecting the sub electrode to the opening may be disposed.

As a result, cracks are generated in the sub-electrodes due to scratches and the like, and when any one of the sub-electrodes is disconnected due to such cracks, charges are transferred to other sub-electrodes through the connection electrode, And the reliability of the touch panel can be improved.

Further, in the touch panel according to another embodiment, a plurality of openings are formed in the sensing electrode or the wiring electrode to prevent cracks from being extended by the opening when a crack occurs in the electrode, so that a complete short circuit of the sensing electrode or the wiring electrode Thus, the reliability of the touch panel can be improved.

1 is a plan view of a touch panel according to an embodiment.
FIGS. 2 and 3 are enlarged views of the area A of FIG. 1 according to the first embodiment.
4 is a cross-sectional view taken along line BB 'of FIG. 2. FIG.
5 is an enlarged view of a region C in Fig.
Figs. 6 and 7 are enlarged views of the area D in Fig.
8 to 10 are enlarged views of the area E of FIG. 1 according to the second embodiment.
11 to 14 are views for explaining various types of touch windows according to the embodiment.
15 to 17 are views for explaining a touch device in which a touch window and a display panel are combined according to an embodiment.
18 to 21 are views showing an example of a touch device device to which a touch window according to the embodiment is applied.

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

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

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

Referring to FIG. 1, a touch panel according to an embodiment may include a substrate 100, a sensing electrode 200, a wiring electrode 300, and a printed circuit board 500.

The substrate 100 may be rigid or flexible. For example, the substrate 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 spatial touch such as hovering and is applicable as a cover substrate because of its high surface strength. Here, hovering means a technique of recognizing coordinates even at a small distance from the display.

Also, the substrate 100 may be curved with a partially curved surface. That is, the substrate 100 may be partially flat and partially curved with a curved surface. In detail, the end of the substrate 100 may have a curved surface or be curved or curved with a surface including a random random 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 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, a printed circuit board, and the like may be disposed on the substrate 100. That is, the substrate may be a supporting substrate.

The substrate 100 may include a cover substrate. That is, the sensing electrode, the wiring electrode, and the printed circuit board can be supported by the cover substrate. Alternatively, a separate cover substrate may be further disposed on the substrate 100. That is, the sensing electrode, the wiring electrode, and the printed circuit board are supported by the substrate, and the substrate and the cover substrate may be laminated via the adhesive layer.

A valid region (AA) and a non-valid region (UA) may be defined on the substrate.

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.

A print layer may be disposed in the ineffective area (UA) of the substrate. The printed layer is formed by applying a material having a predetermined color so that the wiring electrodes disposed on the ineffective area UA and the printed circuit board connecting the wiring electrodes 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 a color film can be used to realize various color colors such as red and blue.

In addition, 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 print layers may be arranged in one layer or in at least two layers with different widths.

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 of the substrate 100.

The sensing electrode 200 may include a first sensing electrode and a second sensing electrode. For example, the sensing electrode 200 may include a first sensing electrode and a second sensing electrode extending in different directions.

Although FIG. 1 shows the sensing electrode extending in one direction, the embodiment is not limited thereto, and may further include another sensing electrode extending in another direction.

1, the sensing electrode is formed in a bar pattern extending in one direction. However, the present invention is not limited thereto. For example, the sensing electrode may be formed in various patterns such as a polygon such as a triangle, .

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. 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 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.

Referring to FIGS. 2 to 4, the sensing electrode 200 may include an opening 700.

For example, the sensing electrode 200 may include a first sub sensing electrode 201 and a second sub sensing electrode 202. The first sub sensing electrode 201 and the second sub sensing electrode 202 may be spaced apart from each other.

The first sub sensing electrode 201 and the second sub sensing electrode 202 may be connected to each other. For example, a first connection electrode 410 is disposed in the opening 700, and the first sub sensing electrode 201 and the second sub sensing electrode 202 are connected to each other through the first connection electrode 410, Can be connected to each other.

At least one or more first connection electrodes 410 may be disposed in the opening. For example, as shown in FIGS. 2 and 3, a plurality of the first connection electrodes 410 may be disposed on the opening 700.

Accordingly, the opening 700 may be divided into a plurality of openings by the first connection electrode 410.

The first connection electrode 410 may extend in a direction different from at least one of the first sub sensing electrode 201 and the second sub sensing electrode 202.

For example, referring to FIG. 2, the first connection electrode 410 may extend in a direction crossing the extending direction of the first sub sensing electrode 201 and the second sub sensing electrode 202 .

3, the first connection electrode 410 may extend in a direction inclined with respect to a direction in which the first sub sensing electrode 201 and the second sub sensing electrode 202 extend, .

The first connection electrode 410 may include a material corresponding to at least one sub sensing electrode of the first sub sensing electrode 201 and the second sub sensing electrode 202. For example, the first connection electrode 410 may include the same or similar material as the sensing electrode 200 described above. Accordingly, the sensing electrode 200 can be formed simultaneously in a single process.

The first connection electrode 410 may be formed integrally with at least one of the first sub sensing electrode 201 and the second sub sensing electrode 202. For example, the first connection electrode 410 may be integrally formed with the first sub sensing electrode 201 and the second sub sensing electrode 202 without being separated from each other.

The plurality of first connection electrodes 410 may be spaced apart from each other. For example, the distance d between the first connection electrodes 410 may be about 4.5 mm or less. In detail, the distance d between the first connection electrodes 410 may be about 3.5 mm to about 4.5 mm.

When the distance d between the first connection electrodes 410 is less than about 3.5 mm, the first connection electrodes 410 may be connected to each other to cause coupling. When the distance d between the first connection electrode 410 and the second connection electrode 410 exceeds about 4.5 mm, when the first or second sub-sensing electrode 201 or 202 is disconnected, The charge of the sub-sensing electrode of the first sub-sensing electrode can not be smoothly transferred to the other sub-sensing electrode.

Referring to FIG. 4, a width w2 of the first connection electrode 410 may be different from a width w1 of the first sub sensing electrode and the second sub sensing electrode. For example, the width w2 of the first connection electrode 410 may be smaller than the width w1 of the first sub sensing electrode and the second sub sensing electrode.

For example, the width of the first connection electrode 410 may be about 0.1 mm or less. In detail, the width of the first connection electrode 410 may be about 0.03 mm to about 0.1 mm.

When the width (w2) dl of the first connection electrode 410 is less than about 0.03 mm, the resistance of the first connection electrode may increase to increase the charge charging time of the connection electrode, The increase in the number of electrodes cap can cause the coupling to occur due to interference between the connecting electrodes.

In addition, the width w1 of the first sub sensing electrode and the second sub sensing electrode may be about 0.2 mm or less. In detail, the width w1 of the first sub sensing electrode and the second sub sensing electrode may be about 0.2 mm to about 0.5 mm.

If the width (w1) of the first sub sensing electrode and the second sub sensing electrode is less than about 0.2 mm, the surface resistance of the sub sensing electrode may increase and the charge charging time of the sub sensing electrode may become longer, The coupling between the sub-sensing electrodes may occur due to an increase in the cap of the sub-sensing electrode.

The first connection electrode 410 may be disposed in contact with at least one of the first sub sensing electrode 201 and the second sub sensing electrode 202. For example, the first connection electrode 410 may contact at least one side of at least one of a side surface and an upper surface of at least one sub-sensing electrode of the first sub-sensing electrode 201 and the second sub-sensing electrode 202 .

4, the first connection electrode 410 is connected to the side surface of the first sub sensing electrode 201 and the side surface of the second sub sensing electrode 202. However, And the first connection electrode 410 may be connected to at least one of a side surface and an upper surface of the first sub sense electrode 201 and a side surface or an upper surface of the second sub sense electrode 202 have.

The first connection electrode 410 may have a thickness corresponding to at least one sub-sensing electrode of the first sub-sensing electrode 201 and the second sub-sensing electrode 202. For example, referring to FIG. 4, the thickness t2 of the first connection electrode 410 may have a thickness corresponding to the thickness t1 of the first sub-sensing electrode.

The touch panel according to the embodiment may include a first connection electrode for connecting the first sub sensing electrode and the second sub sensing electrode.

Accordingly, when a scratch or the like occurs in the first sub-sensing electrode or the second sub-sensing electrode, electric charge can be transferred to the other sub-sensing electrode through the first connection electrode, thereby preventing the entire sensing electrode from short- can do.

Therefore, the touch panel according to the embodiment can prevent the electrical failure due to disconnection of the sensing electrode, thereby improving the reliability of the touch panel.

The wiring electrode 300 may be disposed on the substrate 100. For example, the wiring electrode 300 may be disposed on the ineffective area UA of the substrate 100.

The wiring electrode 300 may be connected to the sensing electrode 200. For example, the wiring electrode 300 and the sensing electrode 200 may be connected to each other through the pad unit 600.

The pad portion 600 may include a conductive material. For example, the pad portion 600 may include an anisotropic conductive film (ACF) or the like.

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

The wiring electrode 300 may include a first wiring electrode and a second wiring electrode. For example, the wiring electrode 300 may include a first wiring electrode and a second wiring electrode, which are connected to the first sensing electrode and the second sensing electrode, respectively, extending in different directions.

5, at least one of the wiring electrodes 300, that is, at least one of the first wiring electrode and the second wiring electrode is electrically connected to the first wiring electrode 300a and the second wiring electrode 300b ).

The second wiring electrode 300b may be connected to the pad unit 600 and the first wiring electrode 300a. For example, one end of the second wiring electrode 300b may be connected to the pad unit 600, and the other end may be connected to the first wiring electrode 300a.

The width of the second wiring electrode 300b may be about 0.8 mm or less. In detail, the width of the second wiring electrode 300b may be about 0.03 mm to about 0.8 mm.

When the width of the second wiring electrode 300b is less than about 0.03 mm, the connection between the sensing electrode and the wiring electrode may be incomplete. When the width of the second wiring electrode 300b is more than about 0.8 mm, Can be increased.

The first wiring electrode 300a may be connected to the second wiring electrode 300b and the printed circuit board 500. For example, one end of the first wiring electrode 300a may be connected to the second wiring electrode 300b, and the other end of the first wiring electrode 300a may be connected to the printed circuit board 500.

The printed circuit board 500 may include a flexible printed circuit board. The printed circuit board 500 may be mounted with a driving chip, and a touch signal sensed from the sensing electrode may be received through the wiring electrode to perform an operation according to a touch.

At least one or more second wiring electrodes 300b may be disposed. For example, referring to FIG. 5, a plurality of the second wiring electrodes 300b may be disposed. The plurality of second wiring electrodes 300b may be connected to the pad unit 600 and the first wiring electrodes 300a and may be spaced apart from each other.

5, the plurality of second wiring electrodes 300b extend in the same direction. However, the present invention is not limited to this, and at least one of the plurality of second wiring electrodes 300b, The wiring electrode 300b may extend in a different direction from the other second wiring electrodes 300b.

The touch panel may include a first wiring electrode and a plurality of second wiring electrodes connected to the pad unit.

Accordingly, when the sensing electrode and the wiring electrode are connected to each other through the pad portion, a short circuit due to the failure of the second wiring electrode can be prevented. That is, even if any one of the second wiring electrodes of the plurality of second wiring electrodes is damaged, the charges can be transferred to the other second wiring electrodes. As a result, Can be prevented.

Therefore, the touch panel according to the embodiment can prevent the electrical failure due to disconnection of the wiring electrode, thereby improving the reliability of the touch panel.

Hereinafter, another embodiment of the wiring electrode according to the embodiment will be described with reference to Figs. 6 and 7. Fig.

Referring to FIG. 6, the wiring electrode 300 may include a first sub-wiring electrode 301 and a second sub-wiring electrode 302. The first sub-wiring electrode 301 and the second sub-wiring electrode 302 may be spaced apart from each other.

Accordingly, the wiring electrode 300 may include an opening 700.

The first sub-wiring electrode 301 and the second sub-wiring electrode 302 may be connected to each other. In detail, the first sub-wiring electrode 301 and the second sub-wiring electrode 302 may be connected to each other through a second connection electrode 420 disposed on the opening 700.

At least one or more second connection electrodes 420 may be disposed on the opening 700. For example, as shown in FIGS. 6 and 7, a plurality of the second connection electrodes 410 may be disposed on the opening 700.

Accordingly, the opening 700 may be divided into a plurality of openings by the second connection electrode 4 @ 0.

The second connection electrode 420 may extend in a direction different from that of at least one sub-sensing electrode of the first sub-wiring electrode 301 and the second sub-wiring electrode 302.

For example, referring to FIG. 6, the second connection electrode 420 extends in a direction intersecting a direction in which the first sub-wiring electrode 301 and the second sub-wiring electrode 302 extend .

However, the embodiment is not limited to this, and the second connection electrode 420 may extend in a direction different from a direction in which the first sub sensing electrode 201 and the second sub sensing electrode 202 extend .

The second connection electrode 420 may include a material corresponding to at least one sub-wiring electrode of the first sub-wiring electrode 301 and the second sub-wiring electrode 302. For example, the second connection electrode 420 may include the same or similar material as the wiring electrode 300 described above. Accordingly, the wiring electrode 300 can be formed simultaneously in one step.

The second connection electrode 420 may be formed integrally with at least one sub-wiring electrode of the first sub-wiring electrode 301 and the second sub-wiring electrode 302. For example, the second connection electrode 420 may be integrally formed with the first sub-wiring electrode 301 and the second sub-wiring electrode 302 without being separated from each other.

A plurality of the second connection electrodes 420 may be disposed on the opening 700 and a plurality of the second connection electrodes 420 may be spaced apart from each other. For example, the plurality of second connection electrodes 420 may be spaced apart from each other by about 0.1 mm to about 0.3 mm. In detail, the second connection electrodes 420 may be spaced apart by about 0.15 mm to about 0.25 mm. More specifically, the second connection electrodes 420 may be spaced apart by about 0.18 mm to about 0.22 mm.

When the second connection electrodes 420 are spaced apart from each other by less than about 0.1 mm, the second connection electrodes 420 may be connected to each other. When the second connection electrodes 420 are separated by more than about 0.3 mm, The widths or the thicknesses of the first and second sub-wiring electrodes disposed between the first and second sub-wiring electrodes 420 and 420 may be uneven and may be vulnerable to static electricity (ESD) or the like.

That is, the second connection electrode 420 can serve to make the width or thickness of the wiring electrode, that is, the first sub-wiring electrode and the second sub-wiring electrode uniform.

Referring to FIG. 7, the wiring electrode 300 according to the embodiment may further include a third connection electrode 430.

The third connection electrode 430 may extend in a direction different from that of at least one of the first sub-wiring electrode 301 and the second sub-wiring electrode 302. In addition, the second connection electrode 420 and the third connection electrode 430 may extend in directions corresponding to each other.

The second connection electrode 420 and the third connection electrode 430 are electrically connected to at least one sub-wiring electrode of the first sub-wiring electrode 301 and the second sub- Lt; / RTI >

The third connection electrode 430 may be disposed between the second connection electrodes 420. For example, at least one third connection electrode 430 may be disposed between the second connection electrodes 420.

For example, a plurality of the third connection electrodes 430 may be disposed between the second connection electrodes 420 and may be spaced apart from each other.

For example, the plurality of third connection electrodes 430 may be spaced apart from each other by about 0.1 mm to about 0.3 mm. In detail, the third connection electrodes 430 may be spaced apart by about 0.15 mm to about 0.25 mm. More specifically, the third connection electrodes 430 may be spaced apart by about 0.18 mm to about 0.22 mm.

When the third connection electrodes 430 are spaced apart from each other by less than about 0.1 mm, the third connection electrodes 430 may be connected to each other. When the third connection electrodes 430 are separated by more than about 0.3 mm, The widths of the first and second sub-wiring electrodes disposed between the first and second sub-wiring electrodes 430 and 430 may be uneven, and may be vulnerable to static electricity (ESD) or the like.

That is, the third connection electrode 430 may serve to make the width or thickness of the wiring electrode uniform.

The first sub-wiring electrode 301, the second sub-wiring electrode 302, the second connection electrode 420, and the third connection electrode 430 may include materials corresponding to each other. Accordingly, the wiring electrode 300 can be formed simultaneously in one step.

The first sub-wiring electrode 301, the second sub-wiring electrode 302, the second connection electrode 420, and the third connection electrode 430 may be integrally formed.

The touch panel according to the embodiment can make the width or the thickness of the wiring electrode, that is, the first sub-wiring electrode and the second sub-wiring electrode uniform. In detail, by connecting the first sub-wiring electrode and the second sub-wiring electrode by disposing the second connecting electrode and the third connecting electrode at regular intervals between the first sub-wiring electrode and the second sub-wiring electrode, It is possible to prevent the width or the thickness of the second sub-wiring electrode from becoming uneven.

Therefore, it is possible to prevent the inflow of static electricity (ESD) that may occur as the width or thickness of the wiring electrode is uneven, and to prevent cracking or disconnection of the wiring electrode.

Accordingly, the touch panel according to the embodiment can prevent the damage of the wiring electrode, thereby improving the reliability of the touch panel.

Hereinafter, a touch panel according to the second embodiment will be described with reference to FIGS. 8 to 10. FIG.

Referring to FIG. 8, a plurality of openings 700 may be formed in the sensing electrode 200. The openings 700 pass through the sensing electrode 200, and one side of the substrate 100 may be exposed through the openings 700.

The opening 700 may extend in a direction corresponding to a direction in which the sensing electrode 200 extends.

The openings 700 may be formed by using a mask or the like when the sensing electrodes are etched.

A plurality of openings 200 may be formed in the sensing electrode 200 to prevent a crack from being extended by the opening when a crack occurs in the sensing electrode 200 due to scratches or the like, It is possible to prevent an electrical opening, that is, a short circuit.

That is, since the plurality of openings 700 formed in the longitudinal direction of the sensing electrode 200 are formed perpendicular to the cracks formed in the unidirectional direction of the sensing electrode 200, even if the cracks occur in the unidirectional direction, The opening portion 700 can prevent the sensing electrode 200 from being electrically short-circuited completely.

The opening 700 may have a width of about 30 탆 to about 100 탆. In addition, the opening 700 may be formed to have a length of about 30 μm to 800 μm.

When the width of the opening 700 is less than about 30 占 퐉 and the length is less than about 30 占 퐉, cracks can not be prevented from extending when the sensing electrode 20 is cracked due to scratches or the like, The electrode 200 may be short-circuited. If the width of the opening portion 700 is more than about 400 μm and the length of the opening portion 700 is more than about 800 μm, the resistance of the sensing electrode 200 may increase, and a charge / have.

The width of the opening 700 may be about 30 to about 100 μm and the length of the opening 700 may be about 30 μm to about 800 μm to increase the resistance of the sensing electrode 200 It is possible to prevent the crack of the sensing electrode 200 from progressing and to improve the reliability and electrical characteristics of the touch panel.

Referring to FIG. 9, the opening 700 may include a first opening 710 and a second opening 720.

The first opening 710 and the second opening 720 may be arranged in a zigzag position.

For example, when a plurality of rows are defined in the sensing electrode 200, the first opening 710 and the second opening 720 may be disposed in different rows and may be disposed in a zigzag position.

The first opening 710 and the second opening 720 may extend in a direction corresponding to each other.

In addition, the first opening 710 and the second opening 720 may include an overlapped area OA.

For example, when a plurality of rows are defined in the sensing electrode 200, the first opening 710 and the second opening 720 may be disposed in columns partially overlapping each other

Accordingly, when a crack or the like is generated in the overlap area OA of the sensing electrode 200, the crack can be prevented from being extended by the first opening 710 and the second opening 720 It is possible to prevent the sensing electrode 200 from being short-circuited.

That is, when a crack occurs in the upper portion of the first opening 710 in the overlap region OA, the extension of the crack is stopped by the first opening 710, 2 cracks are generated between the openings 720, the extension of cracks is stopped by the first openings 710 and the second openings 720, and a crack is generated in the lower portion of the second openings 720 The extension of the crack can be stopped by the second opening 720.

Accordingly, when the sensing electrode partially cracks, the extension of the crack can be prevented by the first opening and the second opening, and the sensing electrode can be prevented from being completely short-circuited.

Referring to FIG. 10, the openings 700 may have various shapes. For example, the protrusions 700 may have a rectangular shape as shown in FIGS. 8 and 9, and may have a trapezoidal shape with an inclination as shown in FIG. However, the embodiment is not limited to this, and the opening may be formed into a polygonal shape such as a triangle, a hexagon, or the like and a circular shape including a curved surface.

Although the sensing electrodes have been described with reference to FIGS. 8 to 10, it is possible to prevent disconnection of the wiring electrodes by applying the same configuration of the sensing electrodes to the wiring electrodes as well.

The touch panel according to the embodiments described above can be applied to various types of touch panels according to the positions of the electrodes.

Referring to FIG. 11, a touch panel according to an exemplary embodiment of the present invention may include a substrate 100 and first and second sensing electrodes 210 and 220 on the substrate 100.

The first sensing electrode 210 may extend in one direction on the effective area AA of the substrate 100. In detail, the first sensing electrode 210 may be disposed on one side of the substrate 100.

The second sensing electrode 220 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 210 and the second sensing electrode 220 may extend in different directions on the same surface of the substrate 100.

The first sensing electrode 210 and the second sensing electrode 220 may be insulated from each other on the substrate 100. A plurality of first unit sensing electrodes constituting the first sensing electrode 210 are connected to each other and a plurality of second unit sensing electrodes constituting the second sensing electrode 220 are spaced apart from each other . The second unit sensing electrodes are connected to each other by a bridge electrode 240 and an insulating layer 250 is disposed at a portion where the bridge electrode 240 is disposed. The first sensing electrode 210, The electrodes 220 can be shorted to each other.

Accordingly, the first sensing electrode 210 and the second sensing electrode 220 may not be in contact with each other, but may be disposed on the same surface of the substrate 100, that is, on the same surface of the effective area AA, have.

A print layer 150 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 210 and the second sensing electrode 220 may be disposed on the same surface of the cover substrate. Alternatively, a separate cover substrate may be further disposed on the substrate 100.

The first wiring electrode 310 and the second wiring electrode 320 may be connected to the first sensing electrode 210 and the second sensing electrode 220, respectively, in the non-effective region UA.

12, another type of touch panel includes a cover substrate 101 and a substrate 100, and includes a first sensing electrode 210 on the cover substrate 101, a second sensing electrode on the substrate 100, Electrode 220 may be included.

A first sensing electrode 210 extending in one direction and a first wiring electrode 310 connected to the first sensing electrode 210 are disposed on one surface of the cover substrate 101, A second sensing electrode 220 extending in a direction different from the first direction and a second wiring electrode 320 connected to the second sensing electrode 220 may be disposed on one side of the first sensing electrode 220.

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.

In detail, a first sensing electrode 2100 extending in one direction and a first wiring electrode 310 connected to the first sensing electrode 210 are disposed on one surface of the substrate 100, A second sensing electrode 220 extending in a direction different from the first direction and a second wiring electrode 320 connected to the second sensing electrode 220 may be disposed on the other surface of the first sensing electrode 220.

13, a touch panel 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 110 and a second sensing electrode on the first substrate 110, And a second sensing electrode on the second substrate 120.

In detail, a first sensing electrode 210 extending in one direction and a first wiring electrode 310 connected to the first sensing electrode 210 are disposed on one surface of the first substrate 110, A second sensing electrode 220 extending in a direction different from the first direction and a second wiring electrode 3200 connected to the second sensing electrode 220 may be disposed on one surface of the substrate 120.

Referring to FIG. 14, another type of touch panel may include a substrate 100, a first sensing electrode 210 on a substrate, and a second sensing electrode 220.

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

The first sensing electrode 210 may include a first wiring electrode 310 connected to the first sensing electrode 210 and a second wiring electrode 320 connected to the second sensing electrode 220, 310 may be disposed on the effective area and the ineffective area of the substrate 100 and the second wiring electrodes 320 may be disposed on the ineffective area 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. 15, the touch device according to the embodiment may include a touch panel disposed on the display panel 900.

15, the touch device may be formed by coupling the substrate 100 and the display panel 900 together. 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 liquid crystal display panel of 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. 16, the touch device according to the embodiment may include a touch panel integrally formed with the display panel 900. That is, the substrate supporting at least one sensing electrode may be omitted.

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

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

Referring to FIG. 16, a first sensing electrode 210 may be disposed on one surface of the substrate 100. Also, a first wiring connected to the first sensing electrode 210 may be disposed. In addition, the second sensing electrode 220 may be disposed on one surface of the display panel 900. In addition, a second wiring connected to the second sensing electrode 220 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. 17, the touch device according to the embodiment may include a touch panel 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. 17, a first sensing electrode 210 may be disposed on one surface of the substrate 100. Also, a first wiring connected to the first sensing electrode 210 may be disposed. Further, a second sensing electrode 220 and a second wiring may be formed between the first substrate 910 and the second substrate 920. That is, the second sensing electrode 220 and the second wiring may be disposed inside the display panel, and the first sensing electrode 210 and the first wiring may be disposed outside the display panel.

The second sensing electrode 220 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.

18 to 21 are views showing an example of a touch device including the above-described touch panel.

Referring to FIG. 18, the mobile terminal 1000 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.

19, a portable notebook is shown as an example of a display device. The portable notebook 2000 may include a touch panel 2200, a touch sheet 2100, and a circuit board 2300. A touch sheet 2100 is disposed on the upper surface of the touch panel 2200. The touch sheet 2100 can protect the touch area TA. In addition, the touch sheet 2100 can improve the touch feeling of the user. And a circuit board 2300 electrically connected to the touch panel 2200 on the lower surface of the touch panel 2200. The circuit board 2300 is a printed circuit board, and various components for constituting a portable notebook can be mounted.

Referring to FIG. 20, such a touch panel can also be applied to a car navigation system 3000.

Further, referring to Fig. 21, such a touch panel can also be applied to a vehicle. That is, the touch panel can be applied to various parts to which the touch panel 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 to this, and it is needless to say that such a touch panel can be used for various electronic products, and can be applied to a wearable device to be worn on a human body or the like.

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 (20)

A substrate including a valid region and a non-valid region;
A sensing electrode on the effective area;
A wiring electrode on the non-effective region; And
And a connection electrode connected to at least one of the sensing electrodes and the wiring electrodes,
Wherein at least one of each of the sensing electrodes and each of the wiring electrodes includes a plurality of openings,
Wherein the plurality of openings are separated by the connecting electrode,
Wherein the sensing electrode includes a first sensing electrode and a second sensing electrode,
Wherein at least one of the first sensing electrode and the second sensing electrode includes a first sub sensing electrode and a second sub sensing electrode,
The connection electrode includes a plurality of first connection electrodes connecting the first sub sensing electrode and the second sub sensing electrode,
Wherein a width of the first connection electrode is smaller than a width of at least one sub sense electrode among the widths of the first sub sense electrode and the second sub sense electrode. The method according to claim 1,
Wherein the first sensing electrode and the second sensing electrode are disposed on the same side of the substrate. delete The method according to claim 1,
Wherein the plurality of first connection electrodes are spaced apart from each other by an interval of 3.5 mm to 4.5 mm. The method according to claim 1,
Wherein the first connection electrode is connected to at least one of a side surface and an upper surface of the first sub sensing electrode and the second sub sensing electrode. The method according to claim 1,
Wherein the first connection electrode extends in a direction different from a direction in which the first sub sensing electrode and the second sub sensing electrode extend. The method according to claim 1,
Wherein the first sub sensing electrode, the second sub sensing electrode, and the first connection electrode are integrally formed. The method according to claim 1,
Wherein the first sub sensing electrode, the second sub sensing electrode, and the first connection electrode comprise materials corresponding to each other. delete The method according to claim 1,
The width of the first connection electrode is 0.2 mm to 0.5 mm,
Wherein a width of at least one sub sense electrode among the widths of the first sub sense electrode and the second sub sense electrode is 0.03 mm to 0.1 mm. The method according to claim 1,
Wherein the first sub sensing electrode and the second sub sensing electrode are connected to the wiring electrode through a pad portion,
Wherein the wiring electrode includes at least one first wiring electrode; And a second wiring electrode,
Wherein the first wiring electrode is connected to the pad portion and the second wiring electrode. The method according to claim 1,
Wherein the wiring electrodes include first sub-wiring electrodes and second sub-wiring electrodes spaced from each other,
Wherein the connection electrode includes a plurality of second connection electrodes connecting the first sub-wiring electrode and the second sub-wiring electrode,
And the distance between the second connection electrodes is 0.1 mm to 0.3 mm. 13. The method of claim 12,
Wherein the first sub-wiring electrode, the second sub-wiring electrode, and the second connection electrode comprise materials corresponding to each other. 13. The method of claim 12,
Wherein the first sub-wiring electrode, the second sub-wiring electrode, and the second connection electrode are integrally formed. 13. The method of claim 12,
And the second connection electrode extends in a direction different from a direction in which the first sub-wiring electrode and the second sub-wiring electrode extend. A substrate including a valid region and a non-valid region;
A sensing electrode on the effective area; And
And a wiring electrode on the non-effective region,
Wherein the sensing electrode includes a plurality of openings,
Wherein an opening of the sensing electrode extends in a direction corresponding to a direction in which the sensing electrode extends,
Wherein the wiring electrode includes a plurality of openings,
Wherein an opening of the wiring electrode extends in a direction corresponding to a direction in which the wiring electrode extends. 17. The method of claim 16,
Wherein the width of the opening of the sensing electrode or the width of the opening of the wiring electrode is from 30 m to 100 m. 17. The method of claim 16,
Wherein the length of the opening of the sensing electrode or the length of the opening of the wiring electrode is 30 to 800 m. 17. The method of claim 16,
Wherein the opening of the sensing electrode or the opening of the wiring electrode includes a first opening and a second opening arranged in a zigzag position,
Wherein the first opening and the second opening include overlapping areas. delete

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