Display Devices

Abstract

The present invention discloses a display device. The display device includes: a display panel including a substrate; and a touch sensing unit located on the substrate, wherein the touch sensing unit includes: a plurality of first sensing electrodes arranged on the substrate and directly connected to each other; a plurality of second sensing electrodes arranged on the substrate; an insulating layer between the substrate and the first sensing electrodes and between the substrate and the second sensing electrodes; a connecting electrode arranged between the substrate and the insulating layer, wherein the connecting electrode is connected to at least one of the second sensing electrodes through a contact hole of the insulating layer; and a dummy electrode located on the same layer as the connecting electrode, wherein the dummy electrode is not physically connected to the connecting electrode and the first sensing electrode.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the benefit of Korean Patent Application No. 10-2018-0021158 filed on February 22, 2018, in the Korean Intellectual Property Office (KIPO), the disclosure of which is incorporated herein by reference in its entirety. Technical Field

[0003] Exemplary embodiments of the present invention relate to a display device capable of minimizing a short-circuit failure between sensing electrodes in a touch sensing unit. Background Art

[0004] Generally, a flat panel display (FPD) device such as an organic light emitting diode (OLED) display device, a liquid crystal display (LCD) device, and an electrophoretic display (EPD) device includes a display panel including an electric field generating electrode and an electro-optical active layer.

[0005] Such a display device may have a touch sensing function that enables interaction with a user. When a user touches the screen with a finger, a touch pen, etc., the touch sensing function allows the display device to detect changes in pressure applied to the screen, etc., and obtain touch information such as the touch position. The display device may receive an image signal based on the touch information.

[0006] Such a touch sensing function may be implemented by a touch sensing unit including a plurality of first sensing electrodes and a plurality of second sensing electrodes crossing each other, with an insulating layer interposed between the plurality of first sensing electrodes and the plurality of second sensing electrodes. Summary of the invention

[0007] According to an exemplary embodiment of the present invention, a display device includes: a display panel including a substrate; and a touch sensing unit located on the substrate. The touch sensing unit includes: a plurality of first sensing electrodes arranged on the substrate and directly connected to each other; a plurality of second sensing electrodes arranged on the substrate; an insulating layer between the substrate and the first sensing electrodes and between the substrate and the second sensing electrodes; a connecting electrode arranged between the substrate and the insulating layer, wherein the connecting electrode is connected to at least one of the second sensing electrodes through a contact hole of the insulating layer; and a dummy electrode located on the same layer as the connecting electrode, wherein the dummy electrode is not physically connected to the connecting electrode and the first sensing electrode.

[0008] The dummy electrode may be a floating electrode.

[0009] An end portion of the dummy electrode may face an end portion of the connection electrode.

[0010] Ends of the dummy electrodes and ends of the connection electrodes may have rounded shapes.

[0011] An end portion of the dummy electrode and an end portion of the connection electrode may have a rounded shape protruding toward each other.

[0012] One of the end portion of the dummy electrode and the end portion of the connecting electrode may have a rounded shape protruding toward the other of the end portion of the dummy electrode and the end portion of the connecting electrode, and the other of the end portion of the dummy electrode and the end portion of the connecting electrode may have a concave shape.

[0013] The end portion of the dummy electrode and the end portion of the connection electrode may have a concavo-convex shape.

[0014] The dummy electrode may be adjacent to the connection electrode.

[0015] The dummy electrode may be located between end portions of the connection electrodes.

[0016] The dummy electrode may be located between adjacent second sensing electrodes.

[0017] An end portion of the dummy electrode and an end portion of the connection electrode may be located between one of the first sensing electrodes and one of the second sensing electrodes.

[0018] The other ends of the dummy electrode and the connection electrode may be located in a hole of one of the first sensing electrodes.

[0019] The dummy electrode may overlap at least one of the plurality of first sensing electrodes.

[0020] The dummy electrode may not overlap with the plurality of first sensing electrodes.

[0021] The dummy electrodes may not be physically connected to the plurality of first sensing electrodes.

[0022] When a portion of the insulating layer located at a crossing point between the dummy electrode and the first sensing electrode is damaged, the dummy electrode may be connected to at least one of the plurality of first sensing electrodes.

[0023] The dummy electrode may have a discontinuous line shape.

[0024] The dummy electrode may include a plurality of dummy electrodes spaced apart from each other.

[0025] A sensing line of one of the first sensing electrodes may be located between an end of one of the plurality of dummy electrodes and an end of the connection electrode.

[0026] The connection electrode may overlap the first sensing electrode and two second sensing electrodes adjacent to each other.

[0027] According to an exemplary embodiment of the present invention, a display device includes: a display panel including a substrate; and a touch sensing unit located on the substrate. The touch sensing unit includes: a plurality of first sensing electrodes arranged on the substrate and directly connected to each other; a plurality of second sensing electrodes arranged on the substrate; an insulating layer between the substrate and the first sensing electrodes and between the substrate and the second sensing electrodes; a connecting electrode arranged between the substrate and the insulating layer, wherein the connecting electrode is connected to one of the second sensing electrodes through a first contact hole of the insulating layer and is connected to another of the second sensing electrodes through a second contact hole of the insulating layer; and a dummy electrode located between a third contact hole and a fourth contact hole, wherein the third contact hole is connected to the first contact hole, and the fourth contact hole is connected to the second contact hole, and wherein the dummy electrode has a discontinuous line shape.

[0028] According to an exemplary embodiment of the present invention, a display device includes: a display panel including a substrate; and a touch sensing unit located on the substrate. The touch sensing unit includes: a plurality of first sensing electrodes arranged on the substrate and directly connected to each other; a plurality of second sensing electrodes arranged on the substrate; an insulating layer between the substrate and the first sensing electrodes and between the substrate and the second sensing electrodes; a connecting electrode arranged between the substrate and the insulating layer, wherein the connecting electrode is connected to an adjacent second sensing electrode through a contact hole of the insulating layer; and a dummy electrode located on the same layer as the first sensing electrode, wherein the dummy electrode crosses the connecting electrode and is not physically connected to the first sensing electrode and the second sensing electrode.

[0029] The dummy electrode may be a floating electrode.

[0030] An end portion of the dummy electrode may face an end portion of the first sensing electrode.

[0031] Ends of the dummy electrodes and ends of the first sensing electrodes may have rounded shapes.

[0032] An end portion of the dummy electrode and an end portion of the connection electrode may have a rounded shape protruding toward each other.

[0033] The first end portions of the dummy electrode and the connecting electrode may have a rounded shape protruding toward the second end portions of the dummy electrode and the connecting electrode, and the second end portions may have a concave shape.

[0034] The end portion of the dummy electrode and the end portion of the connection electrode may have a concavo-convex shape. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The above and other features of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the accompanying drawings, in which:

[0036] Figure 1is an exploded perspective view illustrating a display device according to an exemplary embodiment of the present invention;

[0037] Figure 2 is a diagram illustrating an exemplary embodiment according to the present invention Figure 1 A plan view of a display device;

[0038] Figure 3 is an enlarged view according to an exemplary embodiment of the present invention. Figure 2 A diagram of part A;

[0039] Figure 4 is a diagram illustrating an exemplary embodiment according to the present invention Figure 3 A diagram of a first sensing electrode, a second sensing electrode, a connecting electrode, and a dummy electrode;

[0040] Figure 5 According to an exemplary embodiment of the present invention, Figure 4 A cross-sectional view taken along line II';

[0041] Figure 6 According to an exemplary embodiment of the present invention, Figure 4 A cross-sectional view taken along line II-II';

[0042] Figure 7 is an enlarged view according to an exemplary embodiment of the present invention. Figure 4 A diagram of part C of ;

[0043] Figure 8 is an enlarged view according to another exemplary embodiment of the present invention. Figure 4 A diagram of part C of ;

[0044] Fig. 9 is an enlarged view according to another exemplary embodiment of the present invention. Figure 4 A diagram of part C of ;

[0045] Fig.10 is an enlarged view according to another exemplary embodiment of the present invention. Figure 4 A diagram of part C of ;

[0046] Fig.11 is an enlarged view according to another exemplary embodiment of the present invention. Figure 2 A diagram of part A;

[0047] Fig.12 is an enlarged view according to another exemplary embodiment of the present invention. Figure 2 A diagram of part A;

[0048] Fig.13 is an enlarged view according to another exemplary embodiment of the present invention. Figure 2 A diagram of part A;

[0049] Fig.14 is an enlarged view according to another exemplary embodiment of the present invention. Figure 2 A diagram of part A;

[0050] Fig.15 is an enlarged view according to another exemplary embodiment of the present invention. Figure 2 A diagram of part A;

[0051] Fig.16 is an enlarged view according to another exemplary embodiment of the present invention. Figure 2 A diagram of part A;

[0052] Fig.17 is an enlarged view according to another exemplary embodiment of the present invention. Figure 2 A diagram of part A;

[0053] Fig.18 According to an exemplary embodiment of the present invention, Fig.17 A cross-sectional view taken along line II';

[0054] Fig.19 is an enlarged view according to another exemplary embodiment of the present invention. Figure 2 a diagram of part A of ; and

[0055] Fig. 20 is an enlarged view according to another exemplary embodiment of the present invention. Figure 2 FIG. 10A is a diagram of part A of FIG. 10B . DETAILED DESCRIPTION

[0056] Exemplary embodiments of the present invention will now be described more fully hereinafter with reference to the accompanying drawings. However, the present invention may be embodied in many different forms and should not be construed as limited to the exemplary embodiments set forth herein.

[0057] In the drawings, for the sake of clarity and ease of description, the thickness of multiple layers and regions may be illustrated in an exaggerated manner. When a layer, region, or plate is referred to as being "on" another layer, region, or plate, it may be directly on the other layer, region, or plate, or there may be an intermediate layer, region, or plate therebetween. In the drawings, the same reference numerals may refer to the same elements.

[0058] Throughout the specification, when an element is referred to as being “connected” to another element, the element may be “directly connected” to the other element or “electrically connected” to the other element with one or more intervening elements interposed therebetween.

[0059] As used herein, "about" or "approximately" may include the stated value and mean within an acceptable range of deviation for the particular value determined by one of ordinary skill in the art, taking into account the measurement in question and the errors associated with the measurement of a particular quantity (e.g., limitations of the measurement system). For example, "about" may mean within one or more standard deviations, or within ±30%, 20%, 10%, 5% of the stated value.

[0060] The following will refer to Figures 1 to 20 A display device according to an exemplary embodiment of the present invention is described in detail.

[0061] Figure 1 is an exploded perspective view illustrating a display device according to an exemplary embodiment of the present invention, and Figure 2 is a diagram illustrating an exemplary embodiment according to the present invention Figure 1 A plan view of a display device.

[0062] The display device according to an exemplary embodiment of the present invention includes a display panel 1000, a touch sensing unit 2000, and a cover glass 3000. Figure 1 and Figure 2 shown.

[0063] The display panel 1000 may be a liquid crystal display (LCD) panel, an organic light emitting diode (OLED) display panel, a plasma display panel (PDP), or an electrophoretic display (EPD) panel.

[0064] The display panel 1000 may include a plurality of pixels PX arranged in a matrix form. A single pixel PX is depicted as having a substantially rhombus shape. However, exemplary embodiments of the present invention are not limited thereto, and the pixel PX may have various shapes, such as a quadrilateral shape and a triangular shape.

[0065] In an exemplary embodiment of the present invention, the pixel PX may include a red pixel, a green pixel, and a blue pixel. As another example, the pixel PX may include a red pixel, a green pixel, a blue pixel, a cyan pixel, a magenta pixel, a yellow pixel, and a white pixel.

[0066] The touch sensing unit 2000 may be located on the display panel 1000. For example, in the case where the display panel 1000 is an OLED display device, the display panel 1000 may include a substrate 131 (see Figure 5 ) and the encapsulation layer 133 on the substrate 131 (see Figure 5 ), and in such an embodiment, the touch sensing unit 2000 may be located on the encapsulation layer 133 of the display panel 1000. For example, the touch sensing unit 2000 may be located between the encapsulation layer 133 of the display panel 1000 and the cover glass 3000.

[0067] The encapsulation layer 133 may be a transparent insulating substrate including glass or a transparent plastic material. In addition, the encapsulation layer 133 may have a structure in which one or more inorganic layers and one or more organic layers are alternately stacked.

[0068] As another embodiment, the touch sensing unit 2000 may be disposed in the display panel 1000 , for example, between the substrate 131 and the encapsulation layer 133 .

[0069] As such, the touch sensing unit 2000 may be located above the display panel 1000 or in the display panel 1000. In other words, the touch sensing unit 2000 may be located on the substrate 131 of the display panel 1000.

[0070] The touch sensing unit 2000 includes a plurality of first sensing units 201 and a plurality of second sensing units 202. Figure 2 shown.

[0071] The plurality of first sensing cells 201 are arranged along the second direction D2. In such an embodiment, each of the first sensing cells 201 has a line shape extending along the first direction D1.

[0072] Each of the first sensing units 201 includes a plurality of first sensing electrodes 211. For example, one first sensing unit 201 includes a plurality of first sensing electrodes 211 arranged along the first direction D1. The first sensing electrodes 211 included in one first sensing unit 201 are connected to each other. For example, the first sensing electrodes 211 of one first sensing unit 201 may be integrally formed as a single unitary structure.

[0073] The first sensing electrodes 211 included in one first sensing unit 201 are connected to the first pad electrode 241 through the first transmission line 231. For example, the outermost one of the first sensing electrodes 211 may be connected to the first pad electrode 241 through the first transmission line 231. The outermost one of the first sensing electrodes 211, the first transmission line 231, and the first pad electrode 241 may be integrally formed as a single unitary structure.

[0074] The first sensing electrode 211 included in one first sensing unit 201 and the first sensing electrode 211 included in another first sensing unit 201 are connected to different first transmission lines 231. The first transmission lines 231 are connected to different first pad electrodes 241 among the first pad electrodes 241.

[0075] The first sensing electrode 211 may have a rhombus shape. Alternatively, the first sensing electrode 211 may have a quadrilateral or triangular shape. For example, the first sensing electrode 211 may have a shape substantially the same as that of the pixel PX.

[0076] The first sensing electrode 211 may include a low resistance metal such as titanium (Ti), aluminum (Al), silver (Ag), copper (Cu), chromium (Cr), or nickel (Ni). For example, the first sensing electrode 211 may include three vertically stacked layers (e.g., a first layer, a second layer, and a third layer). In such an embodiment, each of the first layer and the third layer may include titanium (Ti), and the second layer between the first layer and the third layer may include aluminum (Al). The first layer and the third layer may have substantially the same thickness in the vertical direction, and the thickness of the second layer may be greater than the thickness of the first layer (or the third layer).

[0077] In addition, the first sensing electrode 211 may include metal or transparent conductive oxide (TCO). Such transparent conductive oxide (TCO) may include indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), carbon nanotube (CNT) or graphene.

[0078] The plurality of second sensing cells 202 are arranged along the first direction D1. In such an embodiment, each of the second sensing cells 202 has a line shape extending along the second direction D2. The second direction D2 crosses the first direction D1.

[0079] Each of the second sensing units 202 includes a plurality of second sensing electrodes 212. For example, one second sensing unit 202 includes a plurality of second sensing electrodes 212 arranged along the second direction D2. The second sensing electrodes 212 included in one second sensing unit 202 are connected to each other through the connecting electrode 150. The connecting electrode 150 connects two second sensing electrodes 212 adjacent to each other in the second direction D2.

[0080] Connection electrode 150 is located on a layer different from the layer where first sensing electrode 211 and second sensing electrode 212 are located. For example, although first sensing electrode 211 and second sensing electrode 212 include substantially the same material and are located on substantially the same layer, connection electrode 150 may be located below first sensing electrode 211 and second sensing electrode 212.

[0081] The second sensing electrodes 212 included in one second sensing unit 202 are connected to the second pad electrodes 242 through the second transmission lines 232. For example, the outermost one of the second sensing electrodes 212 may be connected to the second pad electrode 242 through the second transmission line 232. The outermost one of the second sensing electrodes 212, the second transmission line 232, and the second pad electrode 242 may be integrally formed into a single integral structure.

[0082] The second sensing electrode 212 included in one second sensing unit 202 and the second sensing electrode 212 included in another second sensing unit 202 are connected to different second transmission lines 232. The second transmission lines 232 are connected to different second pad electrodes 242 among the second pad electrodes 242.

[0083] The second sensing electrode 212 may have a rhombus shape. Alternatively, the second sensing electrode 212 may have a quadrilateral or triangular shape. For example, the second sensing electrode 212 may have a shape substantially the same as that of the pixel PX.

[0084] Second sensing electrode 212 may include substantially the same material as that included in first sensing electrode 211. For example, second sensing electrode 212 may also include titanium (Ti), aluminum (Al), silver (Ag), copper (Cu), chromium (Cr), or nickel (Ni).

[0085] In addition, the second sensing electrode 212 may have a structure substantially the same as that of the first sensing electrode 211. For example, the second sensing electrode 212 may include three vertically stacked layers (e.g., a first layer, a second layer, and a third layer). In such an embodiment, each of the first layer and the third layer may include titanium (Ti), and the second layer between the first layer and the third layer may include aluminum (Al).

[0086] The first sensing electrodes 211 and the second sensing electrodes 212 are alternately arranged in the third direction D3. The third direction D3 crosses the first direction D1 and the second direction D2.

[0087] The first sensing electrode 211 and the second sensing electrode 212 may include substantially the same material and may be located on substantially the same layer. Figure 2 The inside of first sensing electrode 211 and the inside of second sensing electrode 212 are filled with different patterns.

[0088] The first sensing electrode 211 and the second sensing electrode 212 form a touch sensor for sensing touch. As used herein, the term touch may include not only a case where an object contacts the touch panel (e.g., contact touch) but also a case where an object hovers in a state close to or approaching the touch panel (e.g., non-contact touch).

[0089] In an exemplary embodiment of the present invention, the first sensing electrode 211 is connected to a driver of the display panel 1000 through the first pad electrode 241, and the second sensing electrode 212 is connected to the driver through the second pad electrode 242. The driver applies a driving signal to the second sensing electrode 212 and receives an output signal from the first sensing electrode 211. In addition, the driver may apply a driving signal to the first sensing electrode 211 and receive an output signal from the second sensing electrode 212.

[0090] The cover glass 3000 may be located on the touch sensing unit 2000. The cover glass 3000 may include glass, sapphire, diamond, polymethyl methacrylate (PMMA), or polycarbonate (PC).

[0091] Figure 3 is an enlarged view according to an exemplary embodiment of the present invention. Figure 2 FIG. 10A is a diagram of part A of FIG. 10B .

[0092] First, by Figure 3 The upper dotted line and Figure 3 The three regions of the upper edge demarcation line are respectively the first region a1, the second region a2 and the third region a3 from the left. Figure 3 The lower dotted line and Figure 3 The three regions of the lower edge dividing line are respectively the fourth region a4, the fifth region a5 and the sixth region a6 from the left, and the remaining region except the first region a1 to the sixth region a6 is the seventh region a7.

[0093] An upper one of two adjacent second sensing electrodes 212 is located in the first, second and third regions a1, a2 and a3, and a lower one of the two adjacent second sensing electrodes 212 is located in the fourth, fifth and sixth regions a4, a5 and a6.

[0094] Two adjacent first sensing electrodes 211 are located in the seventh area a7. The edges of the two adjacent first sensing electrodes 211 are directly connected to each other. When the connected portion is a connecting portion 280, the connecting portion 280 is located between two connecting electrodes 150 adjacent to each other in the first direction D1. In addition, the connecting portion 280 is located between two second sensing electrodes 212 adjacent to each other in the second direction D2. Therefore, the connecting portion 280 is located in an area surrounded by two adjacent connecting electrodes 150 and two adjacent second sensing electrodes 212.

[0095] Two adjacent first sensing electrodes 211 and a connection portion 280 between the two adjacent first sensing electrodes 211 are integrally formed as a single unitary structure.

[0096] The connection electrode 150 is located in the second area a2, the seventh area a7, and the fifth area a5.

[0097] The dummy electrode 480 is located in the seventh area a7. For example, the dummy electrode 480 may be located between two second sensing electrodes 212 adjacent to each other in the second direction D2 in the seventh area a7. In such an embodiment, the dummy electrode 480 is located adjacent to the connection electrode 150.

[0098] Figure 3 The first sensing electrode 211 and the second sensing electrode 212 may include substantially the same material and may be arranged on substantially the same layer. Figure 3 The inside of first sensing electrode 211 and the inside of second sensing electrode 212 are filled with different patterns.

[0099] like Figure 3 As shown, the first sensing electrode 211 may be in the form of a grid. In other words, the first sensing electrode 211 may have a plurality of holes 61 passing therethrough. The first sensing electrode 211 may include a plurality of first sensing lines 211a and a plurality of second sensing lines 211b crossing the first sensing lines 211a. The first sensing lines 211a and the second sensing lines 211b may be arranged around the holes 61.

[0100] The first sensing lines 211a are parallel to each other, and the second sensing lines 211b are parallel to each other. Each of the first sensing lines 211a may have a line shape extending in the third direction D3, and each of the second sensing lines 211b may have a line shape extending in the fourth direction D4. The area surrounded by the first sensing lines 211a and the second sensing lines 211b may correspond to the hole 61 of the first sensing electrode 211.

[0101] The second sensing electrode 212 may be in the form of a grid. In other words, the second sensing electrode 212 may have a plurality of holes 62 passing therethrough. The second sensing electrode 212 may include a plurality of third sensing lines 212a and a plurality of fourth sensing lines 212b crossing the third sensing lines 212a. The third sensing lines 212a and the fourth sensing lines 212b may be arranged around the holes 62. The third sensing lines 212a are parallel to each other, and the fourth sensing lines 212b are parallel to each other.

[0102] Each of the third sensing lines 212a may have a line shape extending in the third direction D3, and each of the fourth sensing lines 212b may have a line shape extending in the fourth direction D4. An area surrounded by the third and fourth sensing lines 212a and 212b may correspond to the hole 62 of the second sensing electrode 212.

[0103] The pixel PX may be located in the hole 61 of the first sensing electrode 211 and the hole 62 of the second sensing electrode 212. The size of the hole 61 or 62 is proportional to the size of the pixel PX therein. For example, between the red pixel R, the green pixel G, and the blue pixel B, the blue pixel B has the largest size, and the green pixel G has the smallest size. In such an embodiment, the hole in which the blue pixel B is located (hereinafter, "the first hole") has a size larger than the size of the hole in which the green pixel G is located (hereinafter, "the second hole"). In an exemplary embodiment of the present invention, the red pixel R has a size larger than the size of the green pixel G and smaller than the size of the blue pixel B, and therefore, the hole in which the red pixel R is located is larger than the size of the second hole and smaller than the size of the first hole.

[0104] For example, when the display panel 1000 is an OLED display panel, the size of the pixel PX may be the size of the light emitting layer or the size of the light emitting area. The light emitting area may be an area defined by an opening of a light shielding layer (or a pixel defining layer) included in the display panel 1000. The first sensing electrode 211 and the second sensing electrode 212 may be positioned so that the first sensing electrode 211 and the second sensing electrode 212 correspond to the light shielding layer of the display panel 1000. In other words, the first sensing line 211a, the second sensing line 211b, the third sensing line 212a, and the fourth sensing line 212b may be arranged to correspond to the light shielding layer.

[0105] The connection electrode 150 and the dummy electrode 480 are also arranged to correspond to the light shielding layer.

[0106] Reference Figure 4 and Figure 5 The first sensing electrode 211 , the second sensing electrode 212 , the connection electrode 150 , and the dummy electrode 480 are described in more detail.

[0107] Figure 4 is a diagram illustrating an exemplary embodiment according to the present invention Figure 3 FIG. 1 shows a first sensing electrode, a second sensing electrode, a connecting electrode and a dummy electrode in FIG. 1 , Figure 5 According to an exemplary embodiment of the present invention, Figure 4 A cross-sectional view taken along line II' of Figure 6 According to an exemplary embodiment of the present invention, Figure 4 A cross-sectional view taken along line II-II'.

[0108] The connection electrode 150 may include a first connection line 151 and a second connection line 152. Figure 4In addition, the connection electrode 150 may further include a third connection line 153 extending from one side of the first connection line 151 and a fourth connection line 154 extending from one side of the second connection line 152. In addition, the connection electrode 150 may further include a fifth connection line 155 extending from the other side of the first connection line 151 and a sixth connection line 156 extending from the other side of the second connection line 152. The first connection line 151 to the sixth connection line 156 are integrally formed into a single integral structure.

[0109] For example, each of the first connection line 151 and the second connection line 152 may have a C-type shape. In such an embodiment, the first connection line 151 and the second connection line 152 have a shape symmetrical about an imaginary line that passes through the connection portion 280 and is parallel to the first direction D1. The first connection line 151 is connected to the second sensing electrode 212 on the upper side through the first contact hole CNT1, and the second connection line 152 is connected to the second sensing electrode 212 on the lower side through the second contact hole CNT2.

[0110] The third connection line 153 extends from the first connection line 151 in the fourth direction D4. The third connection line 153 is connected to the second sensing electrode 212 on the upper side through the first contact hole CNT1. In an exemplary embodiment of the present invention, the third connection line 153 and the first connection line 151 are connected to the second sensing electrode 212 on the upper side through different first contact holes CNT1.

[0111] The fourth connection line 154 extends from the second connection line 152 in the third direction D3. The fourth connection line 154 is connected to the second sensing electrode 212 on the lower side through the second contact hole CNT2. The third connection line 153 and the fourth connection line 154 have a shape symmetrical about the aforementioned imaginary line. In an exemplary embodiment of the present invention, the fourth connection line 154 and the second connection line 152 are connected to the second sensing electrode 212 on the lower side through different second contact holes CNT2.

[0112] The fifth connection line 155 extends from the first connection line 151 in a direction opposite to the fourth direction D4.

[0113] The sixth connection line 156 extends from the second connection line 152 in a direction opposite to the third direction D3. In such an embodiment, the fifth connection line 155 and the sixth connection line 156 have shapes symmetrical about the aforementioned imaginary line. In addition, the fifth connection line 155 and the sixth connection line 156 are connected to each other. For example, the fifth connection line 155 and the sixth connection line 156 form Figure 4 The leftmost edge of the connecting electrode 150 in FIG.

[0114] The dummy electrode 480 may be located between the opposite ends 11 and 12 of the connection electrode 150. Figure 4 and Figure 6 For example, the dummy electrode 480 may be located between opposite ends 11 and 12 of the first connection line 151. One end 11 of the first connection line 151 is opposite to one end 21 of the dummy electrode 480, and the other end 12 of the first connection line 151 is opposite to the other end 22 of the dummy electrode 480.

[0115] In addition, the dummy electrode 480 may be located between opposite ends of the second connection line 152 .

[0116] The dummy electrode 480 may have a line shape extending in the fourth direction D4. Figure 4 The dummy electrode 480 may overlap with the first sensing electrode 211, as shown in FIG. Figure 4 and Figure 6 For example, the dummy electrode 480 overlaps the first sensing line 211a of the first sensing electrode 211. In other words, the dummy electrode 480 crosses the first sensing line 211a.

[0117] The ends of the dummy electrode 480 and the connection electrode 150 that are opposite to each other may be located, for example, between the first sensing electrode 211 and the second sensing electrode 212 that are adjacent to each other. For example, the opposite ends 21 and 11 of the dummy electrode 480 and the connection electrode 150 may be located between the first sensing line 211a of the first sensing electrode 211 and the third sensing line 212a of the second sensing electrode 212. In other words, the opposite ends 21 and 11 of the dummy electrode 480 and the connection electrode 150 may be located between the first sensing line 211a and the third sensing line 212a that are adjacent to each other.

[0118] In an exemplary embodiment of the present invention, the dummy electrode 480 and the other ends 22 and 12 of the connection electrode 150 may be located, for example, in the hole 61 of the first sensing electrode 211 .

[0119] like Figure 5 and Figure 6 As shown, the connection electrode 150 and the dummy electrode 480 are located on substantially the same layer. The connection electrode 150 and the dummy electrode 480 may be located on the substrate 131 of the display panel 1000. For example, the connection electrode 150 and the dummy electrode 480 may be located on the encapsulation layer 133 on the substrate 131. For example, the connection electrode 150 and the dummy electrode 480 may be located between the encapsulation layer 133 and the first insulating layer 441.

[0120] The connection electrode 150 may overlap one first sensing electrode 211 and two adjacent second sensing electrodes 212. For example, one side of the connection electrode 150 overlaps (eg, Figure 4 The second sensing electrode 212 on the upper side of the connecting electrode 150 overlaps with the second sensing electrode 212 on the upper side of the connecting electrode 150, and the other side of the connecting electrode 150 overlaps with the second sensing electrode 212 on the upper side of the connecting electrode 150. Figure 4), and a central portion of the connection electrode 150 overlaps with the first sensing electrode 211.

[0121] The connection electrode 150 connects two adjacent second sensing electrodes 212 to each other. For example, one side of the connection electrode 150 is connected to the second sensing electrode 212 on the upper side through the first contact hole CNT1 of the first insulating layer 441, and the other side of the connection electrode 150 is connected to the second sensing electrode 212 on the lower side through the second contact hole CNT2 of the first insulating layer 441. For example, one side of the connection electrode 150 may be connected to the second sensing electrode 212 on the upper side through four first contact holes CNT1, and the other side of the connection electrode 150 may be connected to the second sensing electrode 212 on the lower side through four second contact holes CNT2.

[0122] The dummy electrode 480 is not physically connected to the connection electrode 150 and the first sensing electrode 211. In addition, the dummy electrode 480 is not physically connected to the second sensing electrode 212.

[0123] For example, the dummy electrode 480 may be in a floating state, or may be a floating electrode having such a state. For example, the dummy electrode 480 has an isolated shape because the dummy electrode 480 is not connected to any signal line including the connection electrode 150, the first sensing electrode 211, and the second sensing electrode 212. In other words, the dummy electrode 480 is not physically connected to any signal line of the display device in a direct manner. As an example, the signal line may include a line that directly receives a signal from any signal source, or may include a line that indirectly receives a signal from a signal source through at least one other line, or may include a line that indirectly receives a signal from a signal source through at least one capacitor, or may include a line that indirectly receives a signal from a signal source through at least one switch.

[0124] The number of intersections between the connection electrode 150 and the first sensing electrode 211 can be reduced by using the dummy electrode 480 in a floating state. Therefore, the possibility of a short circuit between the connection electrode 150 and the first sensing electrode 211 can be reduced. Therefore, a short circuit failure in which the first sensing electrode 211 and the second sensing electrode 212 are connected to each other through the connection electrode 150 can be minimized.

[0125] In addition, since the dummy electrode 480 is located near the connection electrode 150, the dummy electrode 480 is visually recognized as a part of the connection electrode 150 in the region between the ends 11 and 12 of the connection electrode 150. Therefore, a short circuit failure between the connection electrode 150 and the first sensing electrode 211 can be minimized without visibility problems.

[0126] Although the ends 11 and 12 of the connection electrode 150 are not connected to each other through the dummy electrode 480 , the area of ​​the connection electrode 150 contacting the first and second contact holes CNT1 and CNT2 is almost unchanged, and thus, the contact resistance between the connection electrode 150 and the second sensing electrode 212 is almost not increased.

[0127] refer to Figure 5 and Figure 6 , the first insulating layer 441 is located on the connection electrode 150, the dummy electrode 480, and the encapsulation layer 133. The first insulating layer 441 has a first contact hole CNT1 and a second contact hole CNT2 provided therethrough.

[0128] In an exemplary embodiment of the present invention, the first insulating layer 441 may be located only on the connection electrode 150 and the dummy electrode 480. In another exemplary embodiment of the present invention, the first insulating layer 441 may be located so that the first insulating layer 441 corresponds to the light shielding layer described above. In another exemplary embodiment of the present invention, the first insulating layer 441 may be located on the connection electrode 150 and the dummy electrode 480 to overlap the entire surface of the substrate 131.

[0129] like Figure 5 and Figure 6 As shown, the first sensing electrode 211 and the second sensing electrode 212 are located on substantially the same layer. The first sensing electrode 211 and the second sensing electrode 212 may be located on the first insulating layer 441. For example, the first sensing electrode 211 and the second sensing electrode 212 may be located between the first insulating layer 441 and the second insulating layer 442.

[0130] like Figure 5 As shown, a capacitor Ch (e.g., a horizontal capacitor) is formed between opposite ends of the first sensing electrode 211 and the second sensing electrode 212. In addition, a first capacitor Cv (e.g., a vertical capacitor) is formed between the first sensing electrode 211 and the common electrode 132 of the display panel 1000, and a second capacitor (e.g., a vertical capacitor) is formed between the second sensing electrode 212 and the common electrode 132. Whether a touch is made can be determined based on the capacitance changes of the horizontal capacitor Ch and the vertical capacitor Cv.

[0131] The common electrode 132 corresponds to, for example, a cathode electrode of a light emitting diode ("LED") including a light emitting layer. The common electrode 132 may be located between the substrate 131 and the encapsulation layer 133. For example, the common electrode 132 may be located between the light emitting layer and the encapsulation layer 133.

[0132] like Figure 5 and Figure 6 As shown, the second insulating layer 442 is located on the first sensing electrode 211 , the second sensing electrode 212 , and the first insulating layer 441 .

[0133] In an exemplary embodiment of the present invention, the second insulating layer 442 may be located only on the first sensing electrode 211 and the second sensing electrode 212. In another exemplary embodiment of the present invention, the second insulating layer 442 may be located so that the second insulating layer 442 corresponds to the light shielding layer described above. In another exemplary embodiment of the present invention, the second insulating layer 442 may be located on the first sensing electrode 211, the second sensing electrode 212, and the first insulating layer 441 to overlap with the entire surface of the substrate 131.

[0134] In an exemplary embodiment of the present invention, Figure 4 When, among the two dummy electrodes 480 on the left, the upper dummy electrode (e.g., the dummy electrode between 11 and 12) is the first dummy electrode, and the lower dummy electrode (e.g., the dummy electrode having a shape symmetrical to that of the first dummy electrode about the aforementioned imaginary line) is the second dummy electrode, and among the contact holes CNT1 and CNT2, a contact hole adjacent to the first dummy electrode (e.g., Figure 4 ) as a third contact hole, and a contact hole adjacent to the second dummy electrode (eg, Figure 4 When the contact hole (represented as CNT2 in FIG. 1 ) is the fourth contact hole, the first dummy electrode and the second dummy electrode are located on the connection path between the third contact hole and the fourth contact hole. In other words, the dummy electrodes can be arranged in a non-continuous line shape (e.g., a dotted line shape) on the path between the third contact hole and the fourth contact hole. For example, on the path between the third contact hole and the fourth contact hole, the first dummy electrode extends along the fourth direction D4, and the second dummy electrode extends along the third direction D3. In addition, the first dummy electrode and the second dummy electrode are arranged along the fourth direction D4. Figure 4 The outer edge of the left connection electrode 150 is arranged.

[0135] If the portion 15a of the connecting electrode 150 is removed, the disconnected portion of the connecting electrode 150 will form another dummy electrode; therefore, three dummy electrodes will be arranged on the path between the third contact hole and the fourth contact hole. In other words, the three dummy electrodes can be arranged in a non-continuous line shape (e.g., a dotted line shape) on the path between the third contact hole and the fourth contact hole. The dummy electrode including the three dummy electrodes may have an L-shaped shape or a "<" shape. In such an embodiment, the portion of the connecting electrode 150 on the path connecting the first contact hole CNT1 and the second contact hole CNT2 may also have an L-shaped shape or a "<" shape.

[0136] Figure 7 is an enlarged view according to an exemplary embodiment of the present invention. Figure 4 FIG. 5 is a diagram of part C of FIG.

[0137] like Figure 7 As shown, each of the opposite ends 21 and 11 of the dummy electrode 480 and the connection electrode 150 may have a straight line shape. The opposite ends 21 and 11 are parallel to each other. The ends 21 and 11 are parallel to the third direction D3, for example.

[0138] In an exemplary embodiment of the present invention, each of the dummy electrode 480 and the other opposite ends 22 and 12 of the connection electrode 150 may also have a straight line shape.

[0139] A distance between one end 21 of the dummy electrode 480 and one end 11 of the connection electrode 150 may be substantially equal to or different from a distance between the other end 22 of the dummy electrode 480 and the other end 12 of the connection electrode 150 .

[0140] Figure 8 is an enlarged view according to another exemplary embodiment of the present invention. Figure 4 FIG. 5 is a diagram of part C of FIG.

[0141] like Figure 8 As shown, the opposite ends 21 and 11 of the dummy electrode 480 and the connection electrode 150 may have rounded or curved shapes. For example, the opposite ends 21 and 11 of the dummy electrode 480 and the connection electrode 150 may have semicircular shapes protruding toward each other.

[0142] In such an embodiment, the end portion 21 of the dummy electrode 480 and the end portion 11 of the connection electrode 150 may not be broken.

[0143] The dummy electrode 480 and the other opposite ends 22 and 12 of the connection electrode 150 may have Figure 8 Rounded shapes in .

[0144] Fig. 9 is an enlarged view according to another exemplary embodiment of the present invention. Figure 4 FIG. 5 is a diagram of part C of FIG.

[0145] like Fig. 9 As shown, one of the opposite ends 21 and 11 of the dummy electrode 480 and the connecting electrode 150 may have a rounded shape protruding toward the other of the opposite ends 21 and 11, and the other of the opposite ends 21 and 11 may have a concave shape. For example, one end 21 of the dummy electrode 480 may have a convex shape, and one end 11 of the connecting electrode 150 may have a concave shape.

[0146] On the other hand, one end portion 21 of the dummy electrode 480 may have a concave shape, and one end portion 11 of the connection electrode 150 may have a convex shape.

[0147] A portion 666 of the first insulating layer 441 located at the intersection between the dummy electrode 480 and the first sensing electrode 211 (see Figure 6 ) may be damaged, thereby short-circuiting the dummy electrode 480 with the first sensing electrode 211. When this occurs, the dummy electrode 480 may be used as a signal line and no longer as a floating electrode. In other words, due to the short circuit, the dummy electrode 480 may be used as the first sensing electrode 211. In such an embodiment, a horizontal capacitor may be formed between the dummy electrode 480 and the opposite ends 21 and 11 of the connection electrode 150, and when the ends of the dummy electrode 480 and the connection electrode 150 have Fig. 9 When the shape shown is changed, the capacitance of the horizontal capacitor can be increased. The increase in the capacitance of the horizontal capacitor helps to enhance the sensitivity of the touch sensing unit 2000.

[0148] The dummy electrode 480 and the other opposite ends 22 and 12 of the connection electrode 150 may have Fig. 9 Rounded shapes in .

[0149] Fig.10 is an enlarged view according to another exemplary embodiment of the present invention. Figure 4 FIG. 5 is a diagram of part C of FIG.

[0150] like Fig.10 As shown, the opposite ends 21 and 11 of the dummy electrode 480 and the connection electrode 150 may have a concave-convex shape. In such an embodiment, the concave portion of the dummy electrode 480 faces the convex portion of the connection electrode 150, and the convex portion of the dummy electrode 480 faces the concave portion of the connection electrode 150.

[0151] The ends 21 and 11 of the dummy electrode 480 and the connection electrode 150 have Fig.10 In the case of the shape of , when a short circuit occurs between the dummy electrode 480 and the first sensing electrode 211, the capacitance of the horizontal capacitor between the dummy electrode 480 and the connection electrode 150 may increase.

[0152] The dummy electrode 480 and the other opposite ends 22 and 12 of the connection electrode 150 may have Fig.10 The concave and convex shapes in the.

[0153] Fig.11 is an enlarged view according to another exemplary embodiment of the present invention. Figure 2 FIG. 10A is a diagram of part A of FIG. 10B .

[0154] like Fig.11As shown, the dummy electrode 480 may be located between the opposite ends 11 and 12 of the connection electrode 150. In such an embodiment, the dummy electrode 480 does not cross the first sensing line 211a of the first sensing electrode 211. The dummy electrode 480 is located between the first sensing lines 211a adjacent to each other.

[0155] The first sensing line 211a is located between the opposite ends of the dummy electrode 480 and the connection electrode 150. For example, one first sensing line 211a may be located between one end 21 of the dummy electrode 480 and one end 11 of the connection electrode 150, and another first sensing line 211a may be located between the other end 22 of the dummy electrode 480 and the other end 12 of the connection electrode 150.

[0156] Fig.11 Description and reference of the remaining configuration Figures 3 to 10 The description is basically the same.

[0157] Fig.12 is an enlarged view according to another exemplary embodiment of the present invention. Figure 2 FIG. 10A is a diagram of part A of FIG. 10B .

[0158] like Fig.12 As shown, the dummy electrode 480 may be located between the opposite ends 11 and 12 of the connection electrode 150. In such an embodiment, the dummy electrode 480 crosses or overlaps one of the two adjacent first sensing lines 211a and does not cross the other of the two adjacent first sensing lines 211a.

[0159] For example, among two adjacent first sensing lines 211a, the first sensing line 211a that does not cross the dummy electrode 480 is located between one end 21 of the dummy electrode 480 and one end 11 of the connecting electrode 150, and the other first sensing line 211a is not located between the other end 22 of the dummy electrode 480 and the other end 12 of the connecting electrode 150.

[0160] A distance between one end 21 of the dummy electrode 480 and one end 11 of the connection electrode 150 may be greater than a distance between the other end 22 of the dummy electrode 480 and the other end 12 of the connection electrode 150 .

[0161] Fig.12 Description and reference of the remaining configuration Figures 3 to 10 The description is basically the same.

[0162] Fig.13 is an enlarged view according to another exemplary embodiment of the present invention. Figure 2 FIG. 10A is a diagram of part A of FIG. 10B .

[0163] like Fig.13As shown, the dummy electrode 480 may be located between the opposite ends 11 and 12 of the connection electrode 150. In such an embodiment, the dummy electrode 480 crosses or overlaps one of the two adjacent first sensing lines 211a and does not cross the other of the two adjacent first sensing lines 211a.

[0164] For example, among two adjacent first sensing lines 211a, the first sensing line 211a that does not cross the dummy electrode 480 is located between the other end 22 of the dummy electrode 480 and the other end 12 of the connecting electrode 150, and the other first sensing line 211a is not located between one end 21 of the dummy electrode 480 and one end 11 of the connecting electrode 150.

[0165] A distance between the other end portion 22 of the dummy electrode 480 and the other end portion 12 of the connection electrode 150 may be greater than a distance between one end portion 21 of the dummy electrode 480 and one end portion 11 of the connection electrode 150 .

[0166] Fig.13 Description and reference of the remaining configuration Figures 3 to 10 The description is basically the same.

[0167] Fig.14 is an enlarged view according to another exemplary embodiment of the present invention. Figure 2 FIG. 10A is a diagram of part A of FIG. 10B .

[0168] like Fig.14 As shown, the dummy electrodes 480 are arranged in a discontinuous line shape between the opposite ends 11 and 12 of the connection electrode 150. In other words, a plurality of dummy electrodes 480 spaced apart from each other may be located between the ends 11 and 12.

[0169] The dummy electrode 480 may include a first dummy electrode 481 and a second dummy electrode 482 which are spaced apart from each other.

[0170] One of the two adjacent first sensing lines 211 a crosses the first dummy electrode 481 , and the other of the two adjacent first sensing lines 211 a crosses the second dummy electrode 482 .

[0171] Fig.14 Description and reference of the remaining configuration Figures 3 to 10 The description is basically the same.

[0172] Fig.15 is an enlarged view according to another exemplary embodiment of the present invention. Figure 2 FIG. 10A is a diagram of part A of FIG. 10B .

[0173] like Fig.15As shown, the dummy electrodes 480 are arranged in a discontinuous line shape between the opposite ends 11 and 12 of the connection electrode 150. In other words, a plurality of dummy electrodes 480 spaced apart from each other may be located between the ends 11 and 12.

[0174] The dummy electrode 480 may include a first dummy electrode 481 , a second dummy electrode 482 , and a third dummy electrode 483 that are spaced apart from each other.

[0175] One of the two adjacent first sensing lines 211 a crosses the first dummy electrode 481 , and the other of the two adjacent first sensing lines 211 a crosses the third dummy electrode 483 .

[0176] The second dummy electrode 482 is located between the first dummy electrode 481 and the third dummy electrode 483. The second dummy electrode 482 may be smaller than the first dummy electrode 481 or the third dummy electrode 483.

[0177] Despite Fig.15 Three dummy electrodes 480 are illustrated in FIG. 4 as an example, but more than three dummy electrodes may be arranged between the end portions 11 and 12 , for example, four spaced-apart dummy electrodes may be arranged between the end portions 11 and 12 .

[0178] Fig.15 Description and reference of the remaining configuration Figures 3 to 10 The description is basically the same.

[0179] Fig.16 is an enlarged view according to another exemplary embodiment of the present invention. Figure 2 FIG. 10A is a diagram of part A of FIG. 10B .

[0180] Fig.16 The opposite ends 11 and 12 of the connecting electrode 150 are located at Figure 4 The opposite ends 11 and 12 of the connection electrode 150 are located closer to the central portion of the connection portion 280 .

[0181] In this configuration, Fig.16 The dummy electrode 480 is located at a position greater than Figure 4 The dummy electrode 480 is located closer to the central portion of the connection portion 280 .

[0182] Fig.16 Description and reference of the remaining configuration Figures 3 to 10 The description is basically the same.

[0183] Fig.17 is an enlarged view according to another exemplary embodiment of the present invention. Figure 2 of part A, and Fig.18 According to an exemplary embodiment of the present invention, Fig.17A cross-sectional view taken along line II'.

[0184] like Fig.17 and Fig.18 As shown, the connection electrode 150 includes a first connection line 151 and a second connection line 152. In addition, the connection electrode 150 may further include a third connection line 153, a fourth connection line 154, a fifth connection line 155 and a sixth connection line 156.

[0185] The first to sixth connection lines 151 to 156 are integrally formed into a single unitary structure.

[0186] The first connection line 151 may have an L-shaped or "<"-shaped shape. The first connection line 151 overlaps the first sensing electrode 211 and the adjacent second sensing electrode 212. One side of the first connection line 151 is connected to the first insulating layer 441 through the first contact hole CNT1. Fig.17 The second sensing electrode 212 on the upper side, and the other side of the first connection line 151 is connected to the second sensing electrode 212 on the upper side through the second contact hole CNT2 of the first insulating layer 441. Fig.17 The second sensing electrode 212 at the lower side.

[0187] The second connection line 152 may have an L-shaped or "<"-shaped shape. The second connection line 152 overlaps the first sensing electrode 211 and the adjacent second sensing electrode 212. One side of the second connection line 152 is connected to the first sensing electrode 211 through the first contact hole CNT1 of the first insulating layer 441. Fig.17 The second sensing electrode 212 on the upper side, and the other side of the second connection line 152 is connected to the second sensing electrode 212 on the upper side through the second contact hole CNT2 of the first insulating layer 441. Fig.17 The second sensing electrode 212 at the lower side.

[0188] The third connection line 153 may be located between the first connection line 151 and the second connection line 152. The third connection line 153 may have an I-shaped or line shape. Fig.17 The second sensing electrode 212 on the upper side overlaps. The third connection line 153 is connected to the first connection line 151 and the second connection line 152 .

[0189] The fourth connection line 154 may be located between the first connection line 151 and the second connection line 152. The fourth connection line 154 may have an I-type shape or a line shape. The fourth connection line 154 is connected to the first connection line 151 and the second connection line 152.

[0190] The fifth connection line 155 may be located between the first connection line 151 and the second connection line 152. The fifth connection line 155 may have an I-type shape or a line shape. The fifth connection line 155 is connected to the first connection line 151, the second connection line 152, and the fourth connection line 154.

[0191] The sixth connection line 156 may be located between the first connection line 151 and the second connection line 152. The sixth connection line 156 may have an I-shaped or line shape. Fig.17 The second sensing electrode 212 on the lower side overlaps. The sixth connection line 156 is connected to the first connection line 151 and the second connection line 152 .

[0192] The dummy electrode 490 is located between the opposite ends 31 and 32 of the first sensing electrode 211. For example, the dummy electrode 490 is located between the opposite ends 31 and 32 of the first sensing line 211a.

[0193] The dummy electrode 490 may have a line shape extending in the third direction D3 .

[0194] The dummy electrode 490 crosses the connection electrode 150. For example, the dummy electrode 490 crosses at least one of the first connection line 151 and the second connection line 152 of the connection electrode 150.

[0195] like Fig.18 As shown, dummy electrode 490 is located on substantially the same layer as first sensing electrode 211. Dummy electrode 490 may include substantially the same material as that included in first sensing electrode 211.

[0196] Dummy electrode 490 is not physically connected to first sensing electrode 211, second sensing electrode 212, and connection electrode 150. In other words, dummy electrode 490 may be in a floating state, or may be a floating electrode having such a state.

[0197] The dummy electrode 490 and the opposite ends 41 and 31 or 42 and 32 of the first sensing electrode 211 may have the same Figures 7 to 10 Any of the shapes shown.

[0198] The portion of the first insulating layer 441 located at the intersection between the dummy electrode 490 and the connection electrode 150 may be damaged, thereby short-circuiting the dummy electrode 490 and the connection electrode 150. In this case, the dummy electrode 490 serves as a signal line and is no longer a floating electrode. In other words, the dummy electrode 490 serves as the connection electrode 150. In such an embodiment, a horizontal capacitor may be formed between the dummy electrode 490 and the opposite ends of the first sensing electrode 211, and when the ends of the dummy electrode 490 and the first sensing electrode 211 have Fig. 9 and Fig.10 When the shape shown is changed, the capacitance of the horizontal capacitor can be increased. The increase in the capacitance of the horizontal capacitor helps to enhance the sensitivity of the touch sensing unit 2000.

[0199] The dummy electrode 490 may also cross one of the first connection line 151 and the second connection line 152 adjacent to each other.

[0200] The dummy electrode 490 may also be located between the first connection line 151 and the second connection line 152 that are adjacent to each other.

[0201] In addition, dummy electrodes 490 may be arranged in a non-continuous line shape between opposite ends 31 and 32 of first sensing electrode 211. In other words, a plurality of dummy electrodes 490 spaced apart from each other may be disposed between ends 31 and 32 in a floating state.

[0202] Fig.19 is an enlarged view according to another exemplary embodiment of the present invention. Figure 2 FIG. 10A is a diagram of part A of FIG. 10B .

[0203] like Fig.19 As shown, the connection electrode 150 is connected to the first insulating layer 441 through the first contact hole CNT1. Fig.19 The second sensing electrode 212 on the upper side is connected to the first insulating layer 441 through the second contact hole CNT2 Fig.19 The second sensing electrode 212 at the lower side.

[0204] The connection electrode 150 may include a first connection line 151 , a second connection line 152 , and a third connection line 153 .

[0205] The first connection line 151 may have an L-shaped or "<"-shaped shape. The first connection line 151 overlaps the first sensing electrode 211 and the adjacent second sensing electrode 212. The first connection line 151 is connected to the first sensing electrode 211 through the first contact hole CNT1. Fig.19 The second sensing electrode 212 on the upper side is connected to the Fig.19 The second sensing electrode 212 at the lower side.

[0206] The second connection line 152 extends from one side of the first connection line 151. The second connection line 152 may have an L-shaped or "<"-shaped shape. Fig.19 The second connection line 152 is connected to the second sensing electrode 212 on the upper side through the first contact hole CNT1. Fig.19 The second sensing electrode 212 on the upper side.

[0207] The third connection line 153 extends from the other side of the first connection line 151. The third connection line 153 may have an L-shaped or "<"-shaped shape. Fig.19 The second sensing electrode 212 on the lower side overlaps. The third connection line 153 is connected to the Fig.19 The second sensing electrode 212 at the lower side.

[0208] Fig.19 The connecting electrode 150 has an area smaller than that of the connecting electrode 150 of other embodiments of the present invention. Fig.19 The number of intersections between the connection electrode 150 and the first sensing electrode 211 is reduced. Therefore, a short circuit failure between the connection electrode 150 and the first sensing electrode 211 can be minimized.

[0209] In an exemplary embodiment of the present invention, in order to increase visibility, the first sensing line 211a and the second sensing line 211b may be further arranged at Fig.19 of Fig.17 The portion corresponding to the first connecting line 151.

[0210] Fig. 20 is an enlarged view according to another exemplary embodiment of the present invention. Figure 2 FIG. 10A is a diagram of part A of FIG. 10B .

[0211] like Fig. 20 As shown, the connection electrode 150 is connected to the first insulating layer 441 through the first contact hole CNT1. Fig. 20 The second sensing electrode 212 on the upper side is connected to the first insulating layer 441 through the second contact hole CNT2 Fig. 20 The second sensing electrode 212 at the lower side.

[0212] The connection electrode 150 may include a first connection line 151 , a second connection line 152 , and a third connection line 153 .

[0213] The first connection line 151 may have an L-shaped or "<"-shaped shape. The first connection line 151 overlaps the first sensing electrode 211 and the adjacent second sensing electrode 212. The first connection line 151 is connected to the first sensing electrode 211 through the first contact hole CNT1. Fig. 20 The second sensing electrode 212 on the upper side is connected to the Fig. 20 The second sensing electrode 212 at the lower side.

[0214] The second connection line 152 extends from one side of the first connection line 151. The second connection line 152 may have an L-shape or a V-shape. Fig. 20 The second connection line 152 is connected to the second sensing electrode 212 on the upper side through the first contact hole CNT1. Fig. 20 The second sensing electrode 212 on the upper side.

[0215] The third connection line 153 extends from the other side of the first connection line 151. The third connection line 153 may have an L-shaped or a "^"-shaped shape. Fig. 20The second sensing electrode 212 on the lower side overlaps. The third connection line 153 is connected to the Fig. 20 The second sensing electrode 212 at the lower side.

[0216] Fig. 20 The connecting electrode 150 has an area smaller than that of the connecting electrode 150 of other embodiments of the present invention. Fig. 20 The number of intersections between the connection electrode 150 and the first sensing electrode 211 is reduced. Therefore, a short circuit failure between the connection electrode 150 and the first sensing electrode 211 can be minimized.

[0217] In an exemplary embodiment of the present invention, in order to increase visibility, the first sensing line 211a and the second sensing line 211b may be further arranged at Fig. 20 of Fig.17 In the portion corresponding to the second connecting line 152.

[0218] As set forth above, the display device according to one or more exemplary embodiments of the present invention provides the following effects.

[0219] First, by using a floating dummy electrode, the number of intersections between the connection electrode and the first sensing electrode can be reduced. Therefore, the short-circuit failure between the connection electrode and the first sensing electrode can be minimized. Therefore, the short-circuit failure of the first sensing electrode and the second sensing electrode connected to each other through the connection electrode can be minimized.

[0220] Second, the dummy electrode is located near the connection electrode, between the ends of the connection electrode, and therefore, the dummy electrode can be visually identified as a part of the connection electrode. Therefore, a short circuit fault between the connection electrode and the first sensing electrode can be minimized without visibility issues.

[0221] Third, the area where the connection electrode contacts the first contact hole and the second contact hole is almost unchanged, and the contact resistance between the connection electrode and the second sensing electrode is almost not increased.

[0222] Fourth, since the end portions of the dummy electrodes and the connection electrodes have a rounded shape or a concave-convex shape, the capacitance of the capacitor can be increased. In addition, cracks at the end portions of the dummy electrodes and the connection electrodes can be minimized.

[0223] While the present invention has been illustrated and described with respect to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the following claims.

Claims

1. A display device, comprising: A display panel including a substrate; as well as a touch sensing unit located on the substrate, in The touch sensing unit comprises: a plurality of first sensing electrodes arranged on the substrate and directly connected to each other; a plurality of second sensing electrodes arranged on the substrate; an insulating layer between the substrate and the first sensing electrode and between the substrate and the second sensing electrode; a connection electrode disposed between the substrate and the insulating layer, wherein the connection electrode is connected to at least one of the second sensing electrodes through a contact hole of the insulating layer; and a dummy electrode located on the same layer as the connection electrode, wherein the dummy electrode is not physically connected to the connection electrode and the first sensing electrode, and Wherein, the dummy electrode is located between the ends of the connecting electrodes.

2. The display device according to claim 1, wherein: The dummy electrode is a floating electrode.

3. The display device according to claim 1, wherein: An end portion of the dummy electrode faces an end portion of the connection electrode.

4. The display device according to claim 3, wherein: The end portion of the dummy electrode and the end portion of the connection electrode have rounded corner shapes.

5. The display device according to claim 3, wherein: The end portion of the dummy electrode and the end portion of the connection electrode have rounded shapes protruding toward each other.

6. The display device according to claim 3, wherein: One of the end portions of the dummy electrode and the connection electrode has a rounded shape protruding toward the other of the end portions of the dummy electrode and the connection electrode, and the other of the end portions of the dummy electrode and the connection electrode has a concave shape.

7. The display device according to claim 3, wherein: The end portion of the dummy electrode and the end portion of the connection electrode have a concavo-convex shape.

8. The display device according to claim 1, wherein: The dummy electrode is adjacent to the connecting electrode.

9. The display device according to claim 1, wherein: The dummy electrode is located between adjacent second sensing electrodes.

10. The display device according to claim 1, wherein: An end portion of the dummy electrode and an end portion of the connection electrode are located between a first sensing electrode among the first sensing electrodes and a second sensing electrode among the second sensing electrodes.

11. The display device according to claim 10, wherein: The other ends of the dummy electrode and the connecting electrode are located in the hole of the one first sensing electrode.

12. The display device according to claim 1, wherein: The dummy electrode overlaps at least one of the plurality of first sensing electrodes.

13. The display device according to claim 1, wherein: The dummy electrode does not overlap with the plurality of first sensing electrodes.

14. The display device according to claim 1, wherein: The dummy electrode is not physically connected to the plurality of first sensing electrodes.

15. The display device according to claim 1, wherein: When a portion of the insulating layer located at a crossing point between the dummy electrode and the first sensing electrode is damaged, the dummy electrode is connected to at least one of the plurality of first sensing electrodes.

16. The display device according to claim 1, wherein: The dummy electrode has a discontinuous line shape.

17. The display device according to claim 16, wherein: The dummy electrode includes a plurality of dummy electrodes spaced apart from each other.

18. The display device according to claim 17, wherein: A sensing line of one of the first sensing electrodes is located between an end of one of the plurality of dummy electrodes and an end of the connection electrode.

19. The display device according to claim 1, wherein: The connection electrode overlaps one of the first sensing electrodes and two adjacent ones of the second sensing electrodes.

20. A display device comprising: A display panel including a substrate; as well as a touch sensing unit located on the substrate, in The touch sensing unit comprises: a plurality of first sensing electrodes arranged on the substrate and directly connected to each other; a plurality of second sensing electrodes arranged on the substrate; an insulating layer between the substrate and the first sensing electrode and between the substrate and the second sensing electrode; a connection electrode disposed between the substrate and the insulating layer, wherein the connection electrode is connected to one of the second sensing electrodes through a first contact hole of the insulating layer and is connected to another of the second sensing electrodes through a second contact hole of the insulating layer; and A dummy electrode is located between a third contact hole and a fourth contact hole, wherein the third contact hole is connected to the first contact hole, and the fourth contact hole is connected to the second contact hole, and wherein the dummy electrode has a discontinuous line shape.

21. A display device comprising: A display panel including a substrate; as well as a touch sensing unit located on the substrate, in The touch sensing unit comprises: a plurality of first sensing electrodes arranged on the substrate and directly connected to each other; a plurality of second sensing electrodes arranged on the substrate; an insulating layer between the substrate and the first sensing electrode and between the substrate and the second sensing electrode; a connecting electrode disposed between the substrate and the insulating layer, wherein the connecting electrode is connected to an adjacent second sensing electrode through a contact hole of the insulating layer; and A dummy electrode is located on the same layer as the first sensing electrode, wherein the dummy electrode crosses the connection electrode and is not physically connected to the first sensing electrode and the second sensing electrode.

22. The display device according to claim 21, wherein: The dummy electrode is a floating electrode.

23. The display device according to claim 21, wherein: An end portion of the dummy electrode faces an end portion of the first sensing electrode.

24. The display device according to claim 23, wherein: The end portion of the dummy electrode and the end portion of the first sensing electrode have a rounded shape.

25. The display device according to claim 21, wherein An end portion of the dummy electrode and an end portion of the connection electrode have rounded shapes protruding toward each other.

26. The display device according to claim 21, wherein The first end portion of the dummy electrode and the first end portion of the connection electrode have a rounded shape protruding toward the second end portion of the dummy electrode and the second end portion of the connection electrode, and the second end portion has a concave shape.

27. The display device according to claim 21, wherein: An end portion of the dummy electrode and an end portion of the connection electrode have a concavo-convex shape.

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