KR102165990B1 - Touch Panel and Display Device - Google Patents

Abstract

The present invention provides a first ground wire for discharging static electricity, a touch electrode formed to be positioned inside the first ground wire, and a plurality of first ground wires protruding from the first ground wire and connected to the first ground wire. 1 It relates to a touch panel and a display device including a current collecting member,
According to the present invention, since the width of the bezel can be reduced while preventing the electrostatic discharge function from deteriorating, it is possible to contribute to implementing a display device to which a narrow bezel is applied while having an improved electrostatic discharge function.

Description

Touch Panel and Display Device

The present invention relates to a touch panel for implementing a touch function in a display device and a display device in which the touch function is implemented.

As devices for displaying an image, there are display devices such as LCD (Liquid Crystal Display), OLED (Organic Light Emitting Diodes), PDP (Plasma Display Panel), and EPD (Electrophoretic Display). In recent years, in order to increase the proportion of the screen size on which an image is displayed in the display device, development of a display device to which a narrow bezel is applied has been actively made. Such a display device includes a touch panel for implementing a touch function.

1 is a schematic plan view of a touch panel according to the prior art.

Referring to FIG. 1, a touch panel 10 according to the prior art is formed on the substrate 11 in order to implement a touch electrode 12 formed on the substrate 11 and an electrostatic discharge (ESD) function. And the formed ground wiring 13.

The ground wiring 13 is formed to surround the touch electrode 12 so that the touch electrode 12 is positioned inside. A touch wiring 14 is positioned between the ground wiring 13 and the touch electrode 12. The ground wiring 13 is formed at a position spaced apart from the touch wiring 14 by a predetermined distance. The ground wiring 13 is disposed outside a screen on which an image is displayed on the display device so as to be covered by a bezel of the display device.

Here, in the touch panel 10 according to the prior art, since the ground wiring 13 is formed in a straight line so that the ground wiring 13 has a uniform line width (13W) as a whole, the ground wiring 13 is considerable in order to implement an electrostatic discharge function. It was formed to have a line width (13W) of the size.

Accordingly, the touch panel 10 according to the prior art increases the width of the bezel of the display device by a line width 13W of the ground wiring 13 and a distance spaced apart from the touch wiring 14. Therefore, the touch panel 10 according to the prior art has a problem in that it is difficult to implement a display device to which a narrow bezel is applied.

In addition, when the line width (13W) of the ground wiring 13 is reduced in order to implement a narrow bezel, the touch panel 10 according to the prior art decreases the electrostatic discharge (ESD) function and increases noise. There is a problem that the touch function is deteriorated.

The present invention has been devised to solve the above-described problems, and is to provide a touch panel and a display device capable of reducing the width of a bezel of a display device.

An object of the present invention is to provide a touch panel and a display device capable of preventing the electrostatic discharge function from deteriorating, as well as preventing the deterioration of the touch function by eliminating noise.

In order to solve the problems as described above, the present invention may include the following configuration.

The touch panel according to the present invention includes a ground wiring for discharging static electricity; A substrate on which the ground wiring is formed; A touch electrode formed on the substrate to be positioned inside the ground wiring; And a plurality of first current collecting members formed to protrude from the ground wiring and connected to the ground wiring.

A display device according to the present invention includes a display panel for displaying an image; Ground wiring for discharging static electricity; A touch electrode formed to be positioned inside the ground wiring; And a plurality of first current collecting members formed to protrude from the ground wiring and connected to the ground wiring.

The present invention can achieve the following effects.

The present invention is implemented to reduce the width of the bezel while preventing the electrostatic discharge function from deteriorating, thereby contributing to implementing a display device to which a narrow bezel is applied.

The present invention is implemented to improve the electrostatic discharge function by increasing the electron collecting power, thereby reducing the degree to which static electricity, noise, etc. affect the touch signal, thereby improving the quality of the display device implementing the touch function. Can be improved.

1 is a schematic plan view of a touch panel according to the prior art
2 is a schematic plan view of a touch panel according to the present invention
3 to 6 are schematic enlarged views of part A of FIG. 2 for explaining embodiments of the first current collecting member according to the present invention;
7 to 8 are schematic enlarged views of portion A of FIG. 2 for explaining embodiments of the first current collecting member and the second current collecting member according to the present invention.
9 is a schematic plan view of a first current collecting member and a second current collecting member according to the present invention
10 is a schematic plan view for explaining a first current collecting groove according to the present invention
11 is a schematic plan view of a touch panel according to a modified embodiment of the present invention
12 to 18 are schematic enlarged views of part B of FIG. 11 for explaining a touch panel according to a modified embodiment of the present invention;
19 is a schematic plan view of a display device according to the present invention and a partial cross-sectional view taken along line II

Hereinafter, embodiments of a touch panel according to the present invention will be described in detail with reference to the accompanying drawings.

2 and 3, the touch panel 1 according to the present invention is for implementing a touch function in a display device. The touch panel 1 according to the present invention may implement a touch function in display devices such as Liquid Crystal Display (LCD), Organic Light Emitting Diodes (OLED), Plasma Display Panel (PDP), and Electrophoretic Display (EPD).

The touch panel 1 according to the present invention comprises a substrate 2, a touch electrode 3 formed on the substrate 2, and a first ground wiring 4 formed on the substrate 2 to discharge static electricity. ), and a plurality of first current collecting members 5 formed on the substrate 2.

The first current collecting members 5 are formed to be connected to the first ground wiring 4. The first current collecting members 5 are formed to protrude from the first ground wiring 4. Accordingly, the touch panel 1 according to the present invention can achieve the following operational effects.

First, the touch panel 1 according to the present invention can enhance the electrostatic discharge function by increasing the electron collecting power through the first current collecting members 5 protruding from the first ground wiring 4. Accordingly, the touch panel 1 according to the present invention can reduce the line width (4W, shown in FIG. 3) of the first ground wiring 4 as compared with the prior art, and thus the width of the bezel of the display device Can be reduced. Accordingly, the touch panel 1 according to the present invention may contribute to implementing a display device to which a narrow bezel is applied while having an improved electrostatic discharge function.

Second, the touch panel 1 according to the present invention can reduce the degree to which static electricity or the like affects the touch signal through the first current collecting member 5. Accordingly, the touch panel 1 according to the present invention is implemented to have improved ESD resistance, thereby improving the quality of a display device implementing a touch function.

Third, the touch panel 1 according to the present invention not only improves the electrostatic discharge (ESD) function by increasing the electron collecting power, but also reduces the degree of noise affecting the touch signal by eliminating noise, The quality of the implemented display device can be improved.

Hereinafter, the substrate 2, the touch electrode 3, the first ground wiring 4, and the first current collecting member 5 will be described in detail with reference to the accompanying drawings.

2 and 3, the touch electrode 3, the first ground wiring 4, and the first current collecting member 5 are formed on the substrate 2. The substrate 2 may be a substrate made of a material of glass, plastic, or film.

2 and 3, the touch electrode 3 is formed on the substrate 2. The touch electrode 3 may be formed on the substrate 2 to be positioned inside the first ground wiring 4. The touch electrode 3 may be a receiving electrode (RX electrode) for sensing a touch. The touch electrode 3 may include the receiving electrode and a driving electrode (TX electrode) to which a touch driving signal (TX signal) is supplied. The touch electrode 3 may be formed of ITO (Indium Tin Oxide). The touch electrode 3 may be formed of a conductive transparent organic film or inorganic film such as ITO, Indium Zinc Oxide (IZO), and nanowire, or a mash film layer implemented in a fine pattern of a metal component.

The touch electrode 3 may be connected to a plurality of touch wirings 3a. The touch wirings 3a may be formed on the substrate 2 to be positioned between the touch electrode 3 and the first ground wiring 4.

2 and 3, the first ground wiring 4 is formed on the substrate 2 to be grounded to discharge static electricity. The first ground wiring 4 may be formed to surround the touch electrode 3 so that the touch electrode 3 is positioned inside. For example, the first ground wiring 4 may be formed in a shape of a design with one side open. The first ground wiring 4 may be formed of a conductive material. For example, the first ground wiring 4 may be formed of a conductive material including at least one of metal, conductive oxide, nitride, and carbide. The first ground wiring 4 may be formed to be positioned on the same layer as the touch wiring 3a. The first ground wiring 4 may be formed to be positioned on a different layer from the touch wiring 3a.

2 and 3, the first current collecting members 5 are formed on the substrate 2 to be connected to the first ground wiring 4, respectively. Each of the first current collecting members 5 is formed to protrude from the first ground wiring 4. Accordingly, the touch panel 1 according to the present invention can increase the length of a side for collecting electrons through the first current collecting members 5. Accordingly, the touch panel 1 according to the present invention can improve the electrostatic discharge function and ESD resistance by increasing the electron collecting power. In addition, the touch panel 1 according to the present invention may contribute to reducing the width of the bezel of the display device by reducing the line width (4W, shown in FIG. 3) of the first ground wiring 4. When the first ground wiring 4 and the touch wiring 3a are formed to be positioned on the same layer, the touch panel 1 according to the present invention has a line width (4W) of the first ground wiring 4 and the By reducing the distance the first ground wiring 4 is separated from the touch wiring 3a, it may contribute to further reducing the width of the bezel of the display device.

The first current collecting members 5 may be formed of a conductive material. For example, the first current collecting member 5 may be formed of a conductive material including at least one of metal, conductive oxide, nitride, and carbide. The first current collecting members 5 and the first ground wiring 4 may be formed of the same conductive material. The first current collecting members 5 may be formed through a photolithography process, a silk screen printing process, an ink jetting process, or the like. The first current collecting members 5 and the first ground wiring 4 may be integrally formed.

2 to 5, the first current collecting members 5 may be formed to protrude from one surface 41 (shown in FIG. 3) of the first ground wiring 4 as shown in FIG. 4. have. One surface 41 (shown in FIG. 3) of the first ground wiring 4 refers to a side from the first ground wiring 4 toward the touch electrode 3. In this case, the first current collecting members 5 may collect and discharge static electricity generated from the touch electrode 3 or the like located inside.

The first current collecting members 5 may be formed to protrude from the other surface 42 (shown in FIG. 4) of the first ground wiring 4 as shown in FIG. 3. The other surface 42 of the first ground wiring 4 refers to a side facing a direction opposite to the one surface 41. In this case, the first current collecting members 5 may collect and discharge static electricity generated from the outside.

As shown in FIG. 5, the first current collecting members 5 have one surface 41 (shown in FIG. 3) of the first ground wiring 4 and the other surface 42 of the first ground wire 4, as shown in FIG. 4) may be formed to protrude from each. In this case, the first current collecting members 5 may collect and discharge static electricity generated from the touch electrode 3 or the like located inside and static electricity generated from the outside.

Referring to FIGS. 2 to 5, each of the first current collecting members 5 may be formed to decrease in size as they protrude from the first ground wiring 4. Accordingly, the first current collecting members 5 are formed such that the size of the other end opposite to one end connected to the first ground wiring 4 is reduced. Accordingly, the touch panel 1 according to the present invention may further improve the electrostatic discharge function and ESD resistance by increasing the electric power collected by the first current collecting members 5. In addition, since the touch panel 1 according to the present invention can further reduce the line width (4W, shown in FIG. 3) of the first ground wiring 4, it will contribute to further reducing the width of the bezel of the display device. I can.

Each of the first current collecting members 5 may be formed such that their ends are reduced in size as they protrude from the first ground wiring 4. That is, each of the first current collecting members 5 may be formed so that the other end has a pointed shape. Accordingly, the first current collecting members 5 may be formed in a shape capable of inducing static electricity, such as a lightning rod, so that they may be formed to have a higher current collecting power. Accordingly, the touch panel 1 according to the present invention may further improve the electrostatic discharge function and ESD resistance by increasing the electric power collected by the first current collecting members 5. In addition, since the touch panel 1 according to the present invention can further reduce the line width (4W, shown in FIG. 3) of the first ground wiring 4, it will contribute to further reducing the width of the bezel of the display device. I can.

Referring to FIG. 6, the first current collecting members 5 may each include a first connection member 51 (shown in FIG. 6) and a first branch member 52 (shown in FIG. 6 ).

The first connection member 51 connects the first ground wiring 4 and the first branch member 52. The first connecting member 51 is formed to be positioned between the first ground wiring 4 and the first branch member 52. The first connecting member 51 is formed such that one end is connected to the first ground wiring 4. The first connecting member 51 is formed such that the other end is connected to the first branch member 52.

The first branch member 52 is formed to be connected to the first connection member 51. The first branch member 52 is formed to protrude from the first connection member 51. Each of the first current collecting members 5 may include N (N is an integer greater than 1) of first branch members 52. Accordingly, the first current collecting members 5 are formed so that a plurality of first branch members 52 are connected to one first connecting member 51, respectively. Accordingly, the touch panel 1 according to the present invention further increases the electric power collected by the first current collecting members 5 by increasing the area in which each of the first current collecting members 5 can collect static electricity. I can. In FIG. 6, each of the first current collecting members 5 is shown to have three first branch members 52, but is not limited thereto, and each of the first current collecting members 5 is two or four. It may be formed to have more than one of the first branch members 52.

The first branch members 52 may be formed to protrude from the first connection member 51 in different directions. Each of the first branch members 52 may be formed such that their ends are reduced in size as they protrude from the first connection member 51. 6 shows that the first current collecting members 5 having the first branch members 52 are formed on the other surface 42 of the first ground wiring 4, but is not limited thereto, and the first branch member The first current collecting members 5 having 52 may be formed to protrude from at least one of the one surface 41 and the other surface 42 of the first ground wiring 4. The first current collecting members 5 may be connected to the first ground wiring 4 to be spaced apart from each other by a predetermined distance so that the first branch members 52 are spaced apart from each other by a predetermined distance.

2, 7 and 8, the touch panel 1 according to the present invention may further include a plurality of second current collecting members 6 (shown in FIG. 7 ).

The second current collecting members 6 are formed on the substrate 2 (shown in FIG. 2) to be connected to the first ground wiring 4, respectively. The second current collecting members 6 are respectively formed to protrude from the first ground wiring 4.

As shown in FIG. 7, each of the second current collecting members 6 may be formed to have a larger area than each of the first current collecting members 5. Accordingly, the second current collecting member 6 has a larger area to collect static electricity than the first current collecting member 5. For example, the second current collecting member 6 is formed to protrude to a longer length from the first ground wiring 4 compared to the first current collecting member 5, so that it is more than the first current collecting member 5 It can be formed to have a large area.

Accordingly, the touch panel 1 according to the present invention includes the second current collector in a portion where a relatively large amount of static electricity is generated in the first ground wiring 4, a portion relatively vulnerable to static electricity in the first ground wiring 4, etc. By implementing the members 6 to be disposed, it is possible to further enhance the electron collecting power for the corresponding portion. In addition, the touch panel 1 according to the present invention includes the first current collecting member 5 at a portion of the first ground wiring 4 that does not require further strengthening of electron collecting power through the second current collecting member 6. By implementing such that they are arranged, it is possible to reduce the material cost for manufacturing the second current collecting members 6.

As shown in Fig. 8, the number of the second current collecting members 6 per unit length with respect to the first earthing wire 4 is the number of the first current collecting members 5 and the first earthing wire 4 May be formed in a larger number than the number formed per unit length. For example, based on the unit length 4L of the first ground wiring 4, four first current collecting members 5 may be formed, and eight second current collecting members 6 may be formed. .

Accordingly, the portion of the ground member 4 in which the second current collecting members 6 are formed has a longer side length capable of collecting static electricity than the portion in which the first current collecting members 5 are formed. Accordingly, the touch panel 1 according to the present invention includes the second current collector in a portion where a relatively large amount of static electricity is generated in the first ground wiring 4, a portion relatively vulnerable to static electricity in the first ground wiring 4, etc. By implementing the members 6 to be disposed, it is possible to further enhance the electron collecting power for the corresponding portion.

Referring to FIG. 9, the second current collecting members 6 may be formed to protrude from a portion of the ground member 4 corresponding to the edge 2a of the substrate 2. This is because a relatively large amount of static electricity may be generated in a portion corresponding to the edge 2a of the substrate 2 in the edge 2a of the substrate 2 and the ground member 4. Accordingly, the touch panel 1 according to the present invention can further enhance electron collecting power for a portion of the first ground wiring 4 corresponding to the edge 2a of the substrate 2.

The second current collecting members 6 may be formed of a conductive material. For example, the second current collecting member 6 may be formed of a conductive material including at least one of metal, conductive oxide, nitride, and carbide. The second current collecting members 6, the first current collecting members 5, and the first ground wiring 4 may be formed of the same conductive material. The second current collecting members 6 may be formed through a photolithography process, a silk screen printing process, an ink jetting process, or the like. The second current collecting members 6, the first current collecting members 5, and the first ground wiring 4 may be integrally formed.

The second current collecting members 6 may be formed to protrude from one surface 41 (shown in FIG. 3) of the first ground wiring 4. The second current collecting members 6 may be formed to protrude from the other surface 42 (shown in FIG. 4) of the first ground wiring 4. The second current collecting members 6 are respectively from one surface 41 (shown in FIG. 3) of the first ground wiring 4 and the other surface 42 (shown in FIG. 4) of the first ground wiring 4 It can be formed to protrude.

Each of the second current collecting members 6 may be formed to decrease in size as they protrude from the first ground wiring 4. Accordingly, the second current collecting members 6 are formed such that the size of the other end opposite to one end connected to the first ground wiring 4 is reduced. Accordingly, the touch panel 1 according to the present invention can further improve the electrostatic discharge function and ESD resistance by increasing the electric power collected by the second current collecting members 6. In addition, since the touch panel 1 according to the present invention can further reduce the line width (4W, shown in FIG. 3) of the first ground wiring 4, it will contribute to further reducing the width of the bezel of the display device. I can.

Each of the second current collecting members 6 may be formed such that their ends are reduced in size as they protrude from the first ground wiring 4. That is, each of the second current collecting members 6 may be formed so that the other end has a sharp shape. Accordingly, the second current collecting members 6 may be formed in a form capable of inducing static electricity, such as a lightning rod, so that they may be formed to have a higher current collecting power. Accordingly, the touch panel 1 according to the present invention can further improve the electrostatic discharge function and ESD resistance by increasing the electric power collected by the second current collecting members 6. In addition, since the touch panel 1 according to the present invention can further reduce the line width (4W, shown in FIG. 3) of the first ground wiring 4, it will contribute to further reducing the width of the bezel of the display device. I can.

Although not shown, the second current collecting members 6 may each include a second connecting member and a second branch member.

The second connecting member connects the first ground wiring 4 and the second branch member. The second connecting member is formed to be positioned between the first ground wiring 4 and the second branch member. The second connecting member is formed such that one end is connected to the first ground wiring 4. The second connecting member is formed such that the other end is connected to the second branch member.

The second branch member is formed to be connected to the second connection member. The second branch member is formed to protrude from the second connection member. Each of the second current collecting members 6 may include L number of second branch members (L is an integer greater than 1). Accordingly, the second current collecting members 6 are formed so that a plurality of second branch members are connected to one second connecting member, respectively. Therefore, the touch panel 1 according to the present invention further increases the electric power collected by the second current collecting members 6 by increasing the area in which each of the second current collecting members 6 can collect static electricity. I can.

The second branch members may be formed to protrude from the second connection member in different directions. Each of the second branch members may be formed such that their ends are reduced in size as they protrude from the second connection member. The second current collecting members 6 having the second branch members protrude from at least one of one surface 41 (shown in FIG. 3) and the other surface 42 (shown in FIG. 4) of the first ground wiring 4 It can also be formed. The second current collecting members 6 may be connected to the first ground wiring 4 to be spaced apart from each other by a predetermined distance so that the second branch members are spaced apart from each other by a predetermined distance.

Referring to FIG. 10, the touch panel 1 according to the present invention may further include a first current collecting groove 7.

The first current collecting groove 7 is formed through the first ground wiring 4. The first current collecting groove 7 may be formed in a polygonal shape having M sides (M is an integer greater than 2). Accordingly, the touch panel 1 according to the present invention can increase the length of a side of the first ground wiring 4 to collect static electricity. Accordingly, the touch panel 1 according to the present invention increases the electron collecting power of the first ground wiring 4, so that the line width of the first ground wiring 4 (4W, as shown in FIG. 3) is compared with the prior art. As shown in the figure, it is possible to further reduce the width of the bezel of the display device. In addition, since the touch panel 1 according to the present invention is implemented to have improved ESD resistance, quality of a display device having a touch function can be further improved.

In FIG. 10, the first current collecting groove 7 is shown to be formed in a quadrangular shape having four sides, but if not limited thereto, the first collecting groove 7 has a triangular shape having three sides or five It may be formed in a polygonal shape having the above sides.

The touch panel 1 according to the present invention may include a plurality of the first current collecting grooves 7. In this case, the first current collecting grooves 7 may be formed to be spaced apart a predetermined distance from each other. The touch panel 1 according to the present invention has a larger number of sides, such as a portion where a relatively large amount of static electricity is generated in the first ground wiring 4, a portion relatively vulnerable to static electricity in the first ground wiring 4 It may be implemented such that the first current collecting grooves 7 are arranged. The touch panel 1 according to the present invention has a larger number per unit length, such as a portion where a relatively large amount of static electricity is generated in the first ground wiring 4, a portion relatively vulnerable to static electricity in the first ground wiring 4 It may be implemented such that the first collecting grooves 7 are arranged.

11 and 12, the touch panel 1 according to the modified embodiment of the present invention may further include a second ground wiring 200 and a plurality of first protruding members 300.

The second ground wiring 200 is formed on the substrate 2 to be grounded to discharge static electricity. The second ground wiring 200 is formed on the substrate 2 to be positioned between the first touch wiring 31a and the second touch wiring 32a. The first touch wiring 31a may be formed to be connected to a driving electrode (TX electrode) among the touch electrodes 3. In this case, the second touch wiring 32a may be formed to be connected to the receiving electrode (RX electrode) among the touch electrodes 3. The first touch wiring 31a may be connected to the receiving electrode (RX electrode) and the second touch wiring 32a may be connected to the driving electrode (TX electrode). A plurality of the first touch wirings 31a and the second touch wirings 32a may be formed on the substrate 2, respectively.

The second ground wiring 200 is formed to be positioned between the first touch wiring 31a and the second touch wiring 32a, so that the first touch wiring 31a and the second touch wiring 32a It can discharge static electricity generated in the liver. In addition, the second ground wire 200 eliminates noise between the first touch wire 31a and the second touch wire 32a to reduce the degree to which noise affects the touch signal, thereby implementing a touch function. It is possible to improve the quality of the displayed display device.

The second ground wiring 200 may be formed as a whole in the shape of a nieunja. The second ground wiring 200 may be formed of a conductive material. For example, the second ground wiring 200 may be formed of a conductive material including at least one of a metal, a conductive oxide, a nitride, and a carbide. The second ground wiring 200 may be formed to be positioned on the same layer as the first ground wiring 4.

The touch panel 1 according to the modified embodiment of the present invention may include a plurality of the second ground wirings 200. For example, as shown in FIG. 11, the touch panel 1 according to the modified embodiment of the present invention may include two second ground wiring lines 200. In this case, the second ground wirings 200 may be formed to be positioned between the first touch wiring 31a and the second touch wiring 32a, respectively. The second touch wiring 32a may be formed to be positioned between the second ground wirings 200.

11 and 12, the first protruding members 300 are respectively formed on the substrate 2 to be connected to the second ground wiring 200. Each of the first protruding members 300 is formed to protrude from the second ground wiring 200. Accordingly, the touch panel 1 according to the modified embodiment of the present invention may increase the length of a side for collecting electrons through the first protruding members 300. Accordingly, the touch panel 1 according to the modified embodiment of the present invention can achieve the following operational effects.

First, the touch panel 1 according to a modified embodiment of the present invention has a function of discharging static electricity generated between the first touch wiring 31a and the second touch wiring 32a by increasing electron collecting power. Can be strengthened.

Second, the touch panel 1 according to a modified embodiment of the present invention eliminates noise between the first touch line 31a and the second touch line 32a, thereby further reducing the degree of noise affecting the touch signal. By reducing it, the quality of the display device in which the touch function is implemented can be improved.

Third, the touch panel 1 according to a modified embodiment of the present invention reduces the width of the bezel of the display device by reducing the line width (200W, shown in FIG. 12) of the second ground wiring 200. You can contribute. When the second ground wire 200, the first touch wire 31a, and the second touch wire 32a are formed to be positioned on the same layer, the touch panel 1 according to a modified embodiment of the present invention Is by reducing the line width (200W) of the second ground wire 200 and the distance between the second ground wire 200 and the first touch wire 31a and the second touch wire 32a, respectively, This may contribute to further reducing the width of the bezel of the display device.

The first protruding members 300 may be formed of a conductive material. For example, the first protruding member 300 may be formed of a conductive material including at least one of a metal, a conductive oxide, a nitride, and a carbide. The first protruding members 300 and the second ground wiring 200 may be formed of the same conductive material. The first protruding members 300 may be formed through a photolithography process, a silk screen printing process, an ink jetting process, or the like. The first protruding members 300 and the second ground wiring 200 may be integrally formed.

11 to 14, the first protruding members 300 may be formed to protrude from one surface 210 (shown in FIG. 12) of the second ground wiring 200 as shown in FIG. 13. have. One surface 210 (shown in FIG. 12) of the second ground wiring 200 refers to a side from the second ground wiring 200 toward the first touch wiring 31a. In this case, the first protruding members 300 may collect and discharge static electricity generated from the first touch electrode 31a or the like.

As illustrated in FIG. 12, the first protruding members 300 may be formed to protrude from the other surface 220 (shown in FIG. 13) of the second ground wiring 200. The other surface 220 of the second ground wiring 200 is a side facing a direction opposite to the one surface 210, and a side facing the second touch wiring 32a from the second ground wiring 200 it means. In this case, the first protruding members 300 may collect and discharge static electricity generated from the second touch electrode 32a or the like.

As shown in FIG. 14, the first protruding members 300 are one surface 210 (shown in FIG. 12) of the second ground wire 200 and the other surface 220 of the second ground wire 200. 13) may be formed to protrude from each. In this case, the first protruding members 300 may collect and discharge static electricity generated from the first touch electrode 31a and the like and static electricity generated from the second touch electrode 32a.

11 to 14, each of the first protruding members 300 may be formed to decrease in size as they protrude from the second ground wiring 200. Accordingly, the first protruding members 300 are formed such that the size of the other end opposite to one end connected to the second ground wiring 200 is reduced. Accordingly, the touch panel 1 according to the modified embodiment of the present invention can further improve the ESD function and ESD resistance by increasing the electric power collected by the first protruding members 300. In addition, the touch panel 1 according to a modified embodiment of the present invention eliminates noise between the first touch line 31a and the second touch line 32a to further reduce the degree of noise affecting the touch signal. By reducing it, the quality of the display device in which the touch function is implemented can be improved.

Each of the first protruding members 300 may be formed to have a reduced size as they protrude from the second ground wiring 200 so that their ends may form a tip (尖端). That is, each of the first protruding members 300 may be formed so that the other end has a pointed shape. Accordingly, the first protruding members 300 may be formed in a shape capable of inducing static electricity, such as a lightning rod, and thus may be formed to have a higher electric collecting power.

Referring to FIG. 15, the first protrusion members 300 may each include a first joint member 310 (shown in FIG. 15) and a first protrusion member 320 (shown in FIG. 15 ).

The first joint member 310 connects the second ground wiring 200 and the first protrusion member 320. The first joint member 310 is formed to be positioned between the second ground wiring 200 and the first protrusion member 320. The first joint member 310 is formed such that one end is connected to the second ground wiring 200. The first joint member 310 is formed such that the other end is connected to the first protrusion member 320.

The first protrusion member 320 is formed to be connected to the first joint member 310. The first protrusion member 320 is formed to protrude from the first joint member 310. Each of the first protruding members 300 may include N (N is an integer greater than 1) of first protruding members 320. Accordingly, the first protruding members 300 are formed so that a plurality of first protruding members 320 are connected to one first joint member 310, respectively. Accordingly, the touch panel 1 according to the modified embodiment of the present invention increases the area in which each of the first protrusion members 300 can collect static electricity, thereby increasing the amount of electricity that the first protruding members 300 have. The collection power can be further increased. In FIG. 15, each of the first protruding members 300 is shown to have three first protruding members 320, but the present invention is not limited thereto, and each of the first protruding members 300 is two or four. It may be formed to have more than one first protruding member 320.

The first protruding members 320 may be formed to protrude from the first joint member 310 in different directions. Each of the first protrusion members 320 may be formed such that their ends are reduced in size as they protrude from the first joint member 310. 15 illustrates that the first protrusion members 300 having the first protrusion members 320 are formed on the other surface 220 of the second ground wiring 200, but is not limited thereto, and the first protrusion member The first protruding members 300 having 320 may be formed to protrude from at least one of the one surface 210 and the other surface 220 of the second ground wiring 200. The first protruding members 300 may be connected to the second ground wiring 200 to be spaced apart from each other by a predetermined distance so that the first protruding members 320 are spaced apart from each other by a predetermined distance.

Referring to FIGS. 11, 16, and 17, the touch panel 1 according to a modified embodiment of the present invention may further include a plurality of second protruding members 400 (shown in FIG. 16 ).

The second protruding members 400 are respectively formed on the substrate 2 (shown in FIG. 11) to be connected to the second ground wiring 200. Each of the second protruding members 400 is formed to protrude from the second ground wiring 200.

As shown in FIG. 16, each of the second protrusion members 400 may be formed to have a larger area than each of the first protrusion members 300. Accordingly, the second protruding member 400 has a larger area capable of collecting static electricity than the first protruding member 300. For example, the second protruding member 400 is formed to protrude to a longer length from the second ground wiring 200 compared to the first protruding member 300, so that it is more than the first protruding member 300. It can be formed to have a large area.

Accordingly, in the touch panel 1 according to the modified embodiment of the present invention, a portion where a relatively large amount of static electricity is generated in the second ground wiring 200 and a portion relatively vulnerable to static electricity in the second ground wiring 200 Since the second protruding members 400 are disposed on the back, the electron collecting power for the corresponding portion may be further strengthened. In addition, the touch panel 1 according to the modified embodiment of the present invention is provided in the second ground wiring 200 through the second protruding members 400 to provide the first By implementing the protruding members 300 to be disposed, it is possible to reduce the material cost for manufacturing the second protruding members 400.

As shown in FIG. 17, the number of the second protruding members 400 per unit length with respect to the second ground wiring 200 is the number of the first protruding members 300 and the second ground wiring 200 May be formed in a larger number than the number formed per unit length. For example, based on the unit length 200L of the second ground wiring 200, four first protruding members 300 may be formed, and eight second protruding members 400 may be formed. .

Accordingly, the portion of the ground member 4 in which the second protruding members 400 are formed has a longer side length capable of collecting static electricity than the portion in which the first protruding members 300 are formed. Accordingly, in the touch panel 1 according to the modified embodiment of the present invention, a portion where a relatively large amount of static electricity is generated in the second ground wiring 200 and a portion relatively vulnerable to static electricity in the second ground wiring 200 Since the second protruding members 400 are disposed on the back, the electron collecting power for the corresponding portion may be further strengthened.

The second protruding members 400 may be formed of a conductive material. For example, the second protruding member 400 may be formed of a conductive material including at least one of metal, conductive oxide, nitride, and carbide. The second protruding members 400, the first protruding members 300, and the second ground wiring 200 may be formed of the same conductive material. The second protruding members 400 may be formed through a photolithography process, a silk screen printing process, an ink jetting process, or the like. The second protruding members 400, the first protruding members 300, and the second ground wiring 200 may be integrally formed.

The second protruding members 400 may be formed to protrude from one surface 210 (shown in FIG. 12) of the second ground wiring 200. The second protruding members 400 may be formed to protrude from the other surface 220 (shown in FIG. 13) of the second ground wiring 200. The second protruding members 400 are from one surface 210 (shown in FIG. 12) of the second ground wire 200 and the other surface 220 (shown in FIG. 13) of the second ground wire 200, respectively. It can be formed to protrude.

Each of the second protruding members 400 may be formed to decrease in size as they protrude from the second ground wiring 200. Accordingly, the second protruding members 400 are formed such that the size of the other end opposite to one end connected to the second ground wiring 200 is reduced. Each of the second protruding members 400 may be formed such that their ends are reduced in size as they protrude from the second ground wiring 200. That is, each of the second protruding members 400 may be formed so that the other end has a sharp shape. Accordingly, the second protruding members 400 may be formed in a shape capable of inducing static electricity, such as a lightning rod, and thus may be formed to have a higher electric collecting power.

Although not shown, the second protruding members 400 may each include a second joint member and a second protruding member.

The second joint member connects the second ground wiring 200 and the second protrusion member. The second joint member is formed to be positioned between the second ground wiring 200 and the second protrusion member. The second joint member is formed such that one end is connected to the second ground wiring 200. The second joint member is formed such that the other end is connected to the second protrusion member.

The second protrusion member is formed to be connected to the second joint member. The second protrusion member is formed to protrude from the second joint member. Each of the second protruding members 400 may include L number of second protruding members (L is an integer greater than 1). Accordingly, the second protrusion members 400 are each formed so that a plurality of second protrusion members are connected to one second joint member. Accordingly, the touch panel 1 according to the modified embodiment of the present invention increases the area in which each of the second protrusion members 400 can collect static electricity, The collection power can be further increased.

The second protrusion members may be formed to protrude from the second joint member in different directions. Each of the second protrusion members may be formed such that their ends are reduced in size as they protrude from the second joint member. The second protruding members 400 having the second protruding members protrude from at least one of one surface 210 (shown in FIG. 12) and the other surface 220 (shown in FIG. 13) of the second ground wiring 200 It can also be formed. The second protruding members 400 may be connected to the second ground wiring 200 to be spaced apart from each other by a predetermined distance so that the second protruding members are spaced apart from each other by a predetermined distance.

Referring to FIG. 18, the touch panel 1 according to a modified embodiment of the present invention may further include a second current collecting groove 500.

The second current collecting groove 500 is formed through the second ground wiring 200. The second current collecting groove 500 may be formed in a polygonal shape having M sides (M is an integer greater than 2). Accordingly, the touch panel 1 according to the modified embodiment of the present invention may increase the length of the side of the second ground wiring 200 to collect static electricity. Accordingly, the touch panel 1 according to a modified embodiment of the present invention can increase the electron collecting power of the second ground wiring 200.

In FIG. 18, the second current collecting groove 500 is shown to be formed in a quadrangular shape having four sides, but if not limited thereto, the second collecting groove 500 has a triangular shape having three sides or five It may be formed in a polygonal shape having the above sides.

The touch panel 1 according to a modified embodiment of the present invention may include a plurality of the second current collecting grooves 500. In this case, the second current collecting grooves 500 may be formed to be spaced apart from each other by a predetermined distance. In the touch panel 1 according to a modified embodiment of the present invention, a portion where static electricity is relatively generated in the second ground wiring 200, a portion relatively vulnerable to static electricity in the second ground wiring 200, etc. It may be implemented such that the second current collecting grooves 500 having a large number of sides are disposed. The touch panel 1 according to the modified embodiment of the present invention includes a portion where a relatively large amount of static electricity is generated in the second ground wiring 200, a portion relatively vulnerable to static electricity in the second ground wiring 200, etc. It may be implemented such that a larger number of second collecting grooves 500 are disposed per length.

Hereinafter, embodiments of a display device according to the present invention will be described in detail with reference to the accompanying drawings.

19 is a schematic plan view of a display device according to the present invention and a partial cross-sectional view taken along line I-I.

Referring to FIG. 19, the display apparatus 100 according to the present invention may include a display panel 110 for displaying an image, and a bezel 120 coupled to the display panel 110.

The display panel 110 is for displaying an image. The display panel 110 may include a first panel substrate 111, a second panel substrate 112, and an intermediate layer 113.

The first panel substrate 111 is bonded to the second panel substrate 112. The first panel substrate 111 may be a substrate made of glass. The first panel substrate 111 may be a substrate made of metal, a substrate made of plastic, or the like. A thin film transistor array (not shown) may be formed on the first panel substrate 111. The thin film transistor array may be formed on the first panel substrate 111 to be positioned between the first panel substrate 111 and the intermediate layer 113.

The second panel substrate 112 is adhered to the first panel substrate 111. The second panel substrate 112 may be a substrate made of glass. The second panel substrate 112 may be a substrate made of metal, a substrate made of plastic, or the like. A color filter layer (not shown) may be formed on the second panel substrate 112. The color filter layer may be formed on the second panel substrate 112 to be positioned between the second panel substrate 112 and the intermediate layer 113.

The intermediate layer 113 is positioned between the first panel substrate 111 and the second panel substrate 112. The display apparatus 100 according to the present invention may include an intermediate layer 113 having different configurations according to types. For example, when the display device 100 according to the present invention is an LCD, the intermediate layer 113 may include a liquid crystal or the like. When the display device 100 according to the present invention is an OLED, the intermediate layer 113 may include a fluorescent organic compound or the like. When the display device 100 according to the present invention is a PDP, the intermediate layer 113 may include an inert gas or the like. When the display device 100 according to the present invention is an EPD, the intermediate layer 113 may include an electrophoretic dispersion or the like.

Referring to FIG. 19, the bezel 120 is coupled to the display panel 110. The bezel 120 is coupled to the display panel 110 to cover the side surface of the display panel 110. The bezel 120 is coupled to the display panel 110 to cover a part of one surface on which an image is displayed on the display panel 110. A user may view an image through a portion of the display panel 110 that is not covered by the bezel 120. Accordingly, as the bezel 120 has a thinner width (120W), the proportion occupied by the size of the screen on which the image is displayed in the display apparatus 100 according to the present invention may be increased.

Although not shown, the display device 100 according to the present invention may include a black matrix BM and a side member coupled to a side surface of the display panel 110. The black matrix is formed to cover a part of one surface on which an image is displayed on the display panel 110. The side member is coupled to the display panel 110 to cover a side surface of the display panel 110 and a portion of a surface on which an image is displayed on the display panel 110. In this case, the bezel 120 may be implemented by the black matrix and the side member.

Although not shown, the display apparatus 100 according to the present invention may cover one surface on which an image is displayed on the display panel 110 through the black matrix. The side member is coupled to the display panel 110 so as to cover the side surface of the display panel 110 and not to cover one surface on which an image is displayed on the display panel 110. In this case, the bezel 120 may be implemented by the black matrix.

Although not shown, the display device 100 according to the present invention may include a backlight unit (not shown) for supplying light to the display panel 110. The backlight unit may be located on the opposite side of the second panel substrate 112 with respect to the first panel substrate 111. That is, the first panel substrate 111 may be positioned between the backlight unit and the second panel substrate 112.

2 to 19, the display device 100 according to the present invention may include the touch panel 1 according to the present invention described above. The touch panel 1 may include the first ground wiring 4 and the first current collecting member 5. The touch panel 1 may include the first ground wiring 4, the first current collecting member 5, and the second current collecting member 6. The first current collecting groove 7 may be formed in the first ground wiring 4. The touch panel 1 may be coupled to the display panel 110 to implement a touch function. The touch panel 1 may be coupled on the second panel substrate 112. In this case, the display apparatus 100 according to the present invention may implement a touch function in an on-cell method. The touch panel 1 may further include the second ground wiring 200 and the first protruding member 300. The touch panel 1 may include the second ground wiring 200, the first protruding member 300, and the second protruding member 400. The second current collecting groove 500 may be formed in the second ground wiring 200.

Referring to FIGS. 2 to 19, the display apparatus 100 according to the present invention may implement a touch function in an In Cell method. In this case, the touch electrode 3 (shown in FIG. 2) may be formed on the display panel 110.

The touch electrode 3 may be formed on the first panel substrate 111. In this case, the first panel substrate 110 may function as the substrate 2 of the touch panel 1 according to the present invention. A touch electrode 3 having the receiving electrode (RX electrode) and the driving electrode (TX electrode) may be formed on the first panel substrate 111. The touch electrode 3 may be formed on the first panel substrate 111 in the process of forming the thin film transistor array. In this case, the first ground wiring 4 and the first current collecting member 5 may be formed on the first panel substrate 111. The first ground wiring 4, the first current collecting member 5, and the second current collecting member 6 may be formed on the first panel substrate 111. The first current collecting groove 7 may be formed in the first ground wiring 4. The second ground wiring 200 and the second current collecting member 300 may be further formed on the first panel substrate 111. The second ground wiring 200, the first protruding member 300, and the second protruding member 400 may be formed on the first panel substrate 111. The second current collecting groove 500 may be formed in the second ground wiring 200.

The touch electrode 3 is implemented so that the driving electrode (TX electrode) is formed on the first panel substrate 111 and the receiving electrode (RX electrode) is formed on the second panel substrate 112. May be. In this case, the first panel substrate 110 and the second panel substrate 112 may function as the substrate 2 of the touch panel 1 according to the present invention. The first ground wiring 4 and the first current collecting member 5 may be formed on the first panel substrate 111 and the second panel substrate 112, respectively. The first ground wiring 4, the first current collecting member 5, and the second current collecting member 6 may be formed on the first panel substrate 111 and the second panel substrate 112, respectively. have. The first current collecting groove 7 may be formed in the first ground wiring 4. The second ground wiring 200 and the first protruding member 300 may be further formed on the first panel substrate 111 and the second panel substrate 112, respectively. The second ground wiring 200, the first protruding member 300, and the second protruding member 400 may be formed on the first panel substrate 111 and the second panel substrate 112, respectively. have. The second current collecting groove 500 may be formed in the second ground wiring 200.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes are possible within the scope of the technical spirit of the present invention. It will be obvious to those who have the knowledge of.

1: touch panel 2: substrate
3: touch electrode 4: ground wiring
5: first current collecting member 6: second current collecting member
7: first collecting groove 100: display device
200: second ground wiring 300: first protruding member
400: second protruding member 500: second collecting groove

Claims (10)

A first ground wiring for discharging static electricity;
A substrate on which the first ground wiring is formed;
A touch electrode formed on the substrate to be positioned inside the first ground wiring; And
And a plurality of first current collecting members formed to be connected to the first ground wiring so as to protrude from the first ground wiring,
The first ground wire is disposed to surround the touch electrode,
The first current collecting members enhance the electrostatic discharge function by increasing electron collecting power, and are provided on the entire first ground wiring. The method of claim 1,
Each of the first current collecting members is formed to decrease in size as they protrude from the first ground wiring, and at least one of one surface of the first ground wiring facing the touch electrode and the other surface of the first ground wiring opposite to the one surface. A touch panel protruding from the surface. The method of claim 1, wherein each of the first current collecting members
A first connecting member formed to be connected to the first ground wiring so as to protrude from the first ground wiring; And
A touch panel including N first branch members (N is an integer greater than 1) formed to be connected to the first connection member so as to protrude from the first connection member. The method of claim 1,
And a plurality of second current collecting members formed to protrude from the first ground wiring and connected to the first ground wiring;
Each of the second current collecting members is formed to have a larger area than that of each of the first current collecting members. The method of claim 1,
And a plurality of second current collecting members formed to protrude from the first ground line and connected to the second ground line;
A touch panel in which the number of the second current collecting members is formed per unit length with respect to the first ground line is greater than the number of the first current collecting members per unit length with respect to the first ground line. The method of claim 1,
And a first current collecting groove formed through the first ground wiring;
The first current collecting groove is a touch panel formed in a polygonal shape having M sides (M is an integer greater than 2). The method of claim 1,
A first touch wiring formed on the substrate to be connected to the touch electrode;
A second touch line formed on the substrate to be connected to the touch electrode at a position spaced apart from the first touch line;
A second ground wiring formed on the substrate to be positioned between the first touch wiring and the second touch wiring; And
A touch panel including a plurality of first protruding members protruding from the second ground wiring and connected to the second ground wiring. A display panel for displaying an image;
A first ground wiring for discharging static electricity;
A touch electrode formed to be positioned inside the first ground wiring; And
And a plurality of first current collecting members formed to be connected to the first ground wiring so as to protrude from the first ground wiring,
The first ground wire is disposed to surround the touch electrode,
The first current collecting members enhance the electrostatic discharge function by increasing electron collecting power, and are provided on the entire first ground wiring. The method of claim 8,
Each of the first current collecting members is reduced in size as they protrude from the first ground wiring, so that an end thereof is formed to form a tip. The method of claim 8,
A first touch wiring formed on a substrate to be connected to the touch electrode;
A second touch line formed on the substrate to be connected to the touch electrode at a position spaced apart from the first touch line;
A second ground wiring formed on the substrate to be positioned between the first touch wiring and the second touch wiring; And
A display device comprising a plurality of first protruding members protruding from the second ground wiring and connected to the second ground wiring.

Images