Touch sensor and display device including the same

Abstract

A touch sensor and a display device including the same are provided. The touch sensor includes: a first sensing area to a third sensing area; a first sensing pattern to a third sensing pattern, which are respectively arranged in the first sensing area to the third sensing area; a sensing line, which is arranged in a non-sensing area and electrically connected to the first sensing pattern; and a connecting line, which is arranged in the non-sensing area and arranged between the sensing line and the first sensing pattern. The connecting line electrically connects the second sensing pattern and the third sensing pattern. The touch sensor also includes: a connecting portion, which electrically connects the sensing line and the first sensing pattern; a dummy line, which is arranged between the sensing line and the connecting line; a grounding line, which is arranged in the non-sensing area, wherein the grounding line sends a ground voltage to the first sensing area to the third sensing area; and a bridge line, which electrically connects the grounding line and the dummy line.

Description

[0001] This application claims priority from Korean Patent Application No. 10-2018-0120076, filed on October 8, 2018, the disclosure of which is hereby incorporated by reference in its entirety. Technical Field

[0002] Exemplary embodiments of the present invention relate to a touch sensor having improved reliability and a display device including the touch sensor. Background Art

[0003] A display device is a device for displaying an image and generally includes a display member such as an organic light emitting display member or a liquid crystal display member. The display member may include a display layer including a plurality of pixels and a touch sensing layer performing a touch sensing function.

[0004] The active area of ​​the display device may have an irregular shape such as a square shape, a circular shape, or a groove shape. The display device displays an image through an active area having various shapes and areas, and may detect whether a touch input is generated. Since the active area has an irregular shape, various types of circuit designs may be required. Summary of the invention

[0005] Exemplary embodiments of the present invention provide a touch sensor with improved reliability and an improved display device by proposing various circuit designs of the display device.

[0006] According to an exemplary embodiment, a touch sensor includes: a base layer having a sensing area and a non-sensing area disposed adjacent to the sensing area. The sensing area includes a first sensing area, a second sensing area protruding from the first sensing area in a first direction, and a third sensing area spaced apart from the second sensing area and protruding from the first sensing area in the first direction. The touch sensor also includes: a plurality of sensing patterns, including a first sensing pattern disposed in the first sensing area, a second sensing pattern disposed in the second sensing area, and a third sensing pattern disposed in the third sensing area. The touch sensor also includes: a sensing line disposed in the non-sensing area and electrically connected to the first sensing pattern; and a connecting line disposed in the non-sensing area and disposed between the sensing line and the first sensing pattern. The connecting line electrically connects the second sensing pattern and the third sensing pattern. The touch sensor also includes: a connecting portion electrically connecting the sensing line and the first sensing pattern; a dummy line disposed between the sensing line and the connecting line; and a grounding line disposed in the non-sensing area. The grounding line sends a ground voltage from the first sensing area to the third sensing area. The touch sensor also includes a bridge line electrically connecting the grounding line and the dummy line.

[0007] In an exemplary embodiment, the touch sensor includes an insulating layer, a dummy line and a ground line are formed by a first conductive layer, a bridge line is formed by a second conductive layer, and the insulating layer is disposed between the first conductive layer and the second conductive layer.

[0008] In an exemplary embodiment, the touch sensor includes a contact hole passing through the insulating layer, and the ground line and the dummy line are electrically connected to the bridge line through the contact hole.

[0009] In an exemplary embodiment, the sensing line is formed of the first conductive layer.

[0010] In an exemplary embodiment, the connection portion is formed of the second conductive layer.

[0011] In an exemplary embodiment, the touch sensor includes a contact hole passing through the insulating layer, and the connection portion is electrically connected to the sensing line through the contact hole.

[0012] In an exemplary embodiment, the ground line and the dummy line extend in a second direction crossing the first direction, and the bridge line extends in the first direction.

[0013] In an exemplary embodiment, the bridge wire includes a first bridge wire and a second bridge wire. The first bridge wire and the second bridge wire are symmetrically arranged with respect to the connection portion.

[0014] In an exemplary embodiment, the dummy line includes a first dummy line and a second dummy line. The first dummy line is electrically connected to the first bridge line and the second bridge line. The second dummy line includes a first segment and a second segment physically separated from the first segment. The first segment is electrically connected to the first bridge line, and the second segment is electrically connected to the second bridge line.

[0015] In an exemplary embodiment, the first dummy line and the second dummy line are integrally formed.

[0016] In an exemplary embodiment, the dummy line further includes a third dummy line disposed between the connection line and the first sensing pattern.

[0017] In an exemplary embodiment, the bridge line electrically connects the ground line and the first to third dummy lines.

[0018] In an exemplary embodiment, an area of ​​the first sensing region is larger than an area of ​​the second sensing region and larger than an area of ​​the third sensing region.

[0019] In an exemplary embodiment, the bridge line includes a transparent conductive oxide.

[0020] According to an exemplary embodiment, a display device includes: a display member that displays an image; a base layer having a sensing region and a non-sensing region disposed adjacent to the sensing region. The sensing region includes a first sensing region, a second sensing region protruding from the first sensing region in a first direction, and a third sensing region spaced apart from the second sensing region and protruding from the first sensing region in the first direction. The display device further includes: a first sensing electrode including a plurality of first sensing patterns disposed in the sensing region. The first sensing patterns are arranged in a first direction and electrically connected to each other. The display device further includes: a second sensing electrode including a plurality of second sensing patterns disposed in the first sensing region. The second sensing patterns are arranged in a second direction intersecting the first direction and electrically connected to each other. The display device further includes: a third sensing electrode including: a first plurality of third sensing patterns disposed in the second sensing region, disposed in the second direction, and electrically connected to each other; and a second plurality of third sensing patterns disposed in the third sensing region, disposed in the second direction, and electrically connected to each other. The display device further includes: a first sensing line electrically connected to one end of the first sensing electrode; a second sensing line electrically connected to one end of the second sensing electrode; and a connecting line electrically connecting the first plurality of third sensing patterns and the second plurality of third sensing patterns. The connecting line is disposed between the first sensing line and the first sensing electrode. The display device further includes: a connection portion electrically connecting the first sensing line and the first sensing pattern; a dummy line disposed between the first sensing line and the connection line; and a ground line disposed in the non-sensing area. The ground line sends a ground voltage from the first sensing area to the third sensing area. The display device further includes a bridge line electrically connecting the ground line and the dummy line.

[0021] In an exemplary embodiment, a display device includes an insulating layer, a dummy line and a ground line are formed by a first conductive layer, a bridge line is formed by a second conductive layer, and the insulating layer is disposed between the first conductive layer and the second conductive layer.

[0022] In an exemplary embodiment, the display device includes a contact hole passing through the insulating layer, and the ground line and the dummy line are electrically connected to the bridge line through the contact hole.

[0023] In an exemplary embodiment, the ground line and the dummy line extend in the second direction, and the bridge line extends in the first direction.

[0024] In an exemplary embodiment, the bridge line includes a first bridge line and a second bridge line, and the first bridge line and the second bridge line are symmetrically disposed with respect to the connection portion.

[0025] In an exemplary embodiment, the dummy line includes a first dummy line and a second dummy line, the first dummy line is electrically connected to the first bridge line and the second bridge line, and the second dummy line includes a first segment and a second segment physically separated from the first segment. The first segment is electrically connected to the first bridge line, and the second segment is electrically connected to the second bridge line. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and other aspects and features of the present invention will become more apparent through a detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings, in which:

[0027] Figure 1 is an exploded perspective view showing a display device including a touch sensor according to an exemplary embodiment;

[0028] Figure 2 is a schematic cross-sectional view of a display device according to an exemplary embodiment;

[0029] Figure 3 is a schematic cross-sectional view of a display device according to an exemplary embodiment;

[0030] Figure 4 is a plan view showing a display member according to an exemplary embodiment;

[0031] Figure 5 is a plan view of a touch sensing layer according to an exemplary embodiment;

[0032] Figure 6 According to an exemplary embodiment, Figure 5 A cross-sectional view taken along line II' shown in FIG.

[0033] Figure 7 According to an exemplary embodiment, Figure 5 An enlarged view of the area AA' shown in;

[0034] Figure 8 According to an exemplary embodiment, Figure 7 A cross-sectional view taken along line III-III' shown in FIG.

[0035] Fig. 9 According to an exemplary embodiment, Figure 7 A cross-sectional view taken along line II-II' shown in FIG.

[0036] Fig.10 According to an exemplary embodiment, Figure 5 An enlarged plan view of the area AA' shown in FIG.

[0037] Fig.11 According to an exemplary embodiment, Figure 5 An enlarged plan view of the area AA' shown in FIG.

[0038] Fig.12 According to an exemplary embodiment, Figure 5 An enlarged plan view of the area BB' shown in;

[0039] Fig.13 According to an exemplary embodiment, Figure 5 an enlarged plan view of the area BB' shown in; and

[0040] Fig.14 According to an exemplary embodiment, Figure 5 An enlarged plan view of the area BB' shown in FIG. DETAILED DESCRIPTION

[0041] Exemplary embodiments of the present invention will be described more fully hereinafter with reference to the accompanying drawings.Like reference numerals may represent like elements throughout the drawings.

[0042] It will be understood that when a component (such as a film, region, layer, or element) is referred to as being "on," "connected to," "bound to," or "adjacent to" another component, the component can be directly on, directly connected to, directly bound to, or directly adjacent to the other component, or there may be intervening components. It will also be understood that when a component is referred to as being "between" two components, the component can be the only component between the two components, or one or more intervening components may also be present. It will also be understood that when a component is referred to as "overlying" another component, the component can be the only component that overlies the other component, or one or more intervening components may also overlie the other component.

[0043] For ease of description, spatially relative terms such as "under," "below," "below," "above," and "on" may be used herein to describe the relationship of one element or feature to another element or feature as shown in the accompanying drawings. It will be understood that in addition to the orientations depicted in the accompanying drawings, the spatially relative terms are intended to encompass different orientations of the device in use or operation. For example, if the device in the accompanying drawings is flipped, an element described as "under" or "below" other elements or features will subsequently be positioned as "above" the other elements or features. Thus, the exemplary term "under" may encompass both above and below orientations. The device may be otherwise positioned (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein interpreted accordingly.

[0044] It will be understood that the terms "first", "second", "third", etc. used herein are used to distinguish one element from another element, and these elements are not limited by these terms. Therefore, the "first" element in an exemplary embodiment may be described as the "second" element in another exemplary embodiment.

[0045] It should be understood that descriptions of features or aspects within each exemplary embodiment should typically be considered as available for other similar features or aspects in other exemplary embodiments, unless the context clearly dictates otherwise.

[0046] In the following description, a first direction DR1 indicates any direction in a plane, and a second direction DR2 indicates another direction intersecting the first direction DR1 in the plane. In addition, a third direction DR3 indicates a direction substantially perpendicular to the plane.

[0047] Unless otherwise defined herein, the “plane” refers to a plane to which the first direction DR1 and the second direction DR2 belong. Furthermore, unless otherwise defined, the “overlap” refers to overlap in the third direction DR3 in a plan view.

[0048] Figure 1 is an exploded perspective view illustrating a display device including a touch sensor according to an exemplary embodiment. Figure 2 yes Figure 1 Schematic cross-sectional view of a display device.

[0049] Reference Figure 1 and Figure 2 , a display device 1 according to an exemplary embodiment may include a display member 100 and a touch sensing layer 200 .

[0050] The display member 100 may include a speaker SP and a camera module CMA. The speaker SP and the camera module CMA are arranged to overlap a non-display area to be described below, and may not overlap a display area.

[0051] The display member 100 is a member that displays an image by an input data signal. The display member 100 can be implemented using, for example, an organic light-emitting display member, a liquid crystal display member, a plasma display member, an electrophoretic display member, an electrowetting display member, a quantum dot light-emitting display member, a micro light-emitting diode (LED) display member, etc. In the exemplary embodiment shown, the display member 100 is an organic light-emitting display member. However, the present invention is not limited thereto.

[0052] The display member 100 may include a base substrate BF, a circuit layer ML, a light emitting element layer EL, and an encapsulation substrate ECL.

[0053] The base substrate BF may include a plastic substrate, a glass substrate, an organic / inorganic composite substrate, etc. Alternatively, the base substrate BF may be a laminated structure including a plurality of insulating layers. The plastic substrate may include, for example, at least one of acrylic resin, methacrylic resin, polyisoprene, vinyl resin, epoxy resin, polyurethane resin, cellulose resin, siloxane resin, polyimide resin, polyamide resin, and perylene resin.

[0054] The circuit layer ML may include a plurality of insulating layers, a plurality of conductive layers, and a semiconductor layer. The plurality of conductive layers of the circuit layer ML may constitute a signal line or a control circuit of a pixel.

[0055] The light emitting element layer EL includes a display element, such as an organic light emitting diode, for example. However, the present invention is not limited thereto. For example, depending on the type of the display member 100, the light emitting element layer EL may include an inorganic light emitting diode or an organic-inorganic hybrid light emitting diode.

[0056] The encapsulation substrate ECL encapsulates the light emitting element layer EL. The encapsulation substrate ECL protects the light emitting element layer EL from foreign substances (such as, for example, moisture, oxygen, and dust particles). The encapsulation substrate ECL may be bonded to the base substrate BF through a sealing portion SLP. The sealing portion SLP may include an organic material such as, for example, glass frit or epoxy resin. However, this is merely illustrative, and the material constituting the sealing portion SLP is not limited thereto.

[0057] The touch sensing layer 200 may be disposed on the package substrate ECL. Figure 2 In the embodiment, the encapsulation substrate ECL is included in the display member 100. However, the present invention is not limited thereto. For example, in an exemplary embodiment, the encapsulation substrate ECL may be included in the touch sensing layer 200. In this case, the encapsulation substrate ECL may be referred to as a base layer ECL.

[0058] In addition, Figure 2 In the embodiment, the touch sensing layer 200 is directly formed on the encapsulation substrate ECL. However, the present invention is not limited thereto. For example, in an exemplary embodiment, an adhesive member is provided between the touch sensing layer 200 and the encapsulation substrate ECL, and the touch sensing layer 200 and the encapsulation substrate ECL may be bonded to each other through the adhesive member.

[0059] In an exemplary embodiment, the aforementioned encapsulation substrate ECL may be replaced by a thin film encapsulation layer. Figure 3 Describe its detailed description.

[0060] Figure 3 is a schematic cross-sectional view of a display device according to an exemplary embodiment.

[0061] Reference Figure 3 , the display device 1_1 includes a display member 100_1 and a touch sensing layer 200_1. The display member 100_1 may include a base substrate BF, a circuit layer ML, a light emitting element layer EL, and a thin film encapsulation layer TFE.

[0062] The thin film encapsulation layer TFE encapsulates the light emitting element layer EL. The thin film encapsulation layer TFE may include at least one insulating layer. In an exemplary embodiment, the thin film encapsulation layer TFE may include at least one encapsulation organic film and at least one encapsulation inorganic film.

[0063] The encapsulated inorganic film protects the light emitting element layer EL from, for example, moisture / oxygen, and the encapsulated organic film protects the light emitting element layer EL from foreign substances (such as, for example, dust particles). The encapsulated inorganic film may include, for example, a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, or an aluminum oxide layer. However, the encapsulated inorganic film is not limited thereto. The encapsulated organic film may include, for example, an acrylic organic film. However, the encapsulated organic film is not limited thereto.

[0064] The touch sensing layer 200_1 may include a base layer BL and a sensing circuit layer SML. The sensing circuit layer SML may include a plurality of insulating layers and a plurality of conductive layers. For example, the conductive layers of the sensing circuit layer SML may constitute sensing patterns, sensing lines, and connection lines.

[0065] The touch sensing layer 200_1 and the display member 100_1 may be bonded to each other by an adhesive member AHL. The adhesive member AHL may be an organic adhesive layer such as, for example, an optically clear adhesive (OCA) film, an optically clear resin (OCR), or a pressure sensitive adhesive (PSA) film.

[0066] In an exemplary embodiment, the adhesive member AHL and the base layer BL of the touch sensing layer 200_1 may be omitted. In this case, the sensing circuit layer SML may be formed and disposed on the thin film encapsulation layer TFE through a continuous process.

[0067] Figure 4 is a plan view showing a display member according to an exemplary embodiment. For example, Figure 4 According to an exemplary embodiment, Figure 1 The display member 100 shown in FIG.

[0068] Reference Figure 4 , the display member 100 may include a base substrate BF, pixels PXL, a driver, a power supply unit, a line unit, and the like.

[0069] The base substrate BF includes a plurality of regions, and at least two of the plurality of regions may have different areas. The base substrate BF may be provided in substantially the same shape corresponding to the shape of the touch sensing layer 200. The base substrate BF may have the same area as the touch sensing layer 200, or may have a larger area than the touch sensing layer 200. In an exemplary embodiment, the base substrate BF may include a first region A1, a second region A2, and a third region A3 having different areas from each other.

[0070] Each of the first to third regions A1, A2, and A3 may have various shapes. For example, each of the first to third regions A1, A2, and A3 may be provided in various shapes such as a closed polygon including straight sides, a circle or an ellipse including curved sides, and a semicircle or a semiellipse including straight sides and curved sides.

[0071] The first to third areas A1, A2 and A3 are divided into display areas DA1, DA2 and DA3 (hereinafter collectively referred to as DA) and non-display areas NDA1, NDA2 and NDA3 (hereinafter collectively referred to as NDA). The display area DA is an area including pixels PXL displaying an image.

[0072] In an exemplary embodiment, each of the display areas DA1, DA2, and DA3 may have a shape substantially corresponding to a shape of each of the first to third areas A1, A2, and A3, respectively.

[0073] The non-display area NDA is an area in which no pixel PXL is disposed, and is an area in which no image is displayed. In the non-display area NDA, first to third scan drivers SDV1, SDV2, and SDV3 that provide scan signals to each pixel PXL according to scan lines, first to third light-emitting drivers EDV1, EDV2, and EDV3 that provide light-emitting control signals to each pixel PXL along light-emitting control lines, data drivers DDV that provide data signals to each pixel PXL along data lines, a timing controller, a power supply unit that applies power to the pixel PXL, and lines that connect the pixel PXL and the driver may be disposed. The non-display area NDA corresponds to a frame in a final display device, and the width of the frame may be determined according to the width of the non-display area NDA.

[0074] Each of the first to third areas A1 , A2 , and A3 will be described as follows.

[0075] The first area A1 may have the largest area among the first to third areas A1, A2, A3. The first area A1 may include a first display area DA1 in which an image is displayed and a first non-display area NDA1 surrounding at least a portion of the first display area DA1.

[0076] The second area A2 may have a smaller area than the first area A1. The second area A2 may include a second display area DA2 in which an image is displayed and a second non-display area NDA2 surrounding at least a portion of the second display area DA2. The third area A3 may have a smaller area than the first area A1. For example, the third area A3 may have substantially the same area as the second area A2. The third area A3 may include a third display area DA3 in which an image is displayed and a third non-display area NDA3 surrounding at least a portion of the third display area DA3.

[0077] The base substrate BF may have a shape in which the second area A2 and the third area A3 protrude from the first area A1 in the first direction DR1. In the base substrate BF, the second area A2 and the third area A3 may be spaced apart from each other by a predetermined distance. Therefore, the base substrate BF may have a shape in which the area between the second area A2 and the third area A3 is recessed. For example, the base substrate BF may include a groove shape between the second area A2 and the third area A3. The area of ​​the groove shape may be a first cutting portion CUT1 in which a portion of the base substrate BF is cut and removed by a cutting process.

[0078] In exemplary embodiments, the base substrate BF may further include an additional non-display area ANDA.

[0079] The additional non-display area ANDA may be disposed adjacent to the first display area DA1, the second display area DA2, and the third display area DA3. In addition, the additional non-display area ANDA may connect the second display area DA2 and the third display area DA3.

[0080] Figure 5 is a plan view of a touch sensing layer according to an exemplary embodiment. For example, Figure 5 According to an exemplary embodiment, Figure 1 The touch sensing layer 200 is provided. Figure 6 It is along Figure 5 A cross-sectional view taken along line II' shown in FIG.

[0081] Reference Figure 5 , the base layer ECL may include a sensing area SA and a non-sensing area NSA adjacent to the sensing area SA. The base layer ECL may be a reference Figure 2 The package substrate ECL described, or refer to Figure 3 Described base layer BL.

[0082] The sensing area SA may be an area for sensing input applied from the outside. The external input may be, for example, a touch by a user's hand or a touch using a pointing device. The input applied from the outside may be provided in various forms. For example, the external input may include various types of external inputs, such as a part of the user's body, a stylus, light, heat, or pressure. In addition to sensing input caused by touching the device by a part of the body (such as a user's hand), a spatial touch (e.g., hovering) close to or adjacent to the device may also be a form of input.

[0083] The sensing area SA may include a first sensing area SA1, a second sensing area SA2, and a third sensing area SA3. The first sensing area SA1 may have a rectangular shape in a plane. The second sensing area SA2 and the third sensing area SA3 may protrude from the first sensing area SA1 in a first direction DR1. The first sensing area SA1 may be referred to as a normal portion, and the second sensing area SA2 and the third sensing area SA3 may be referred to as a groove portion. The area of ​​the first sensing area SA1 may be greater than the area of ​​the second sensing area SA2 and greater than the area of ​​the third sensing area SA3.

[0084] exist Figure 5 In the exemplary embodiment shown in , in addition to the first sensing area SA1, the second sensing area SA2 and the third sensing area SA3 are also provided. However, the number of sensing areas provided protruding from the first sensing area SA1 is not limited thereto. For example, the number of sensing areas provided protruding from the first sensing area SA1 may be one, or may be three or more. Figure 1 The described camera module CMA and the speaker SP may be disposed in the area between the second sensing area SA2 and the third sensing area SA3. For example, a groove shape may be included in the area between the second sensing area SA2 and the third sensing area SA3. The groove-shaped area may be a second cutting portion in which a portion of the encapsulation substrate ECL is cut and removed by a cutting process. The second cutting portion may overlap with the first cutting portion described above in the thickness direction.

[0085] The second sensing area SA2 and the third sensing area SA3 may protrude from one area of ​​one edge of the first sensing area SA1 in the first direction DR1 and may be spaced apart from each other in the second direction DR2.

[0086] A plurality of sensing patterns SPN, SPNC1, SPNC2, SP1, SP2, SP3a and SP3b are arranged in the sensing area SA and are used to sense touch. A plurality of sensing patterns SPN, SPNC1, SPNC2, SP1, SP2, SP3a and SP3b may include a transparent conductive oxide. For example, a plurality of sensing patterns SPN, SPNC1, SPNC2, SP1, SP2, SP3a and SP3b may include at least one of indium zinc oxide (IZO), indium tin oxide (ITO), indium gallium oxide (IGO), indium zinc gallium oxide (IZGO) and a mixture / composite thereof. However, the present invention is not limited thereto. For example, a plurality of sensing patterns SPN, SPNC1, SPNC2, SP1, SP2, SP3a and SP3b may include a metal material. The metal material may include, for example, molybdenum, silver, titanium, copper, aluminum or an alloy thereof. In this case, a plurality of sensing patterns SPN, SPNC1, SPNC2, SP1, SP2, SP3a and SP3b may be arranged in a metal mesh structure to reduce the possibility of visually recognizing the pattern from the outside.

[0087] The plurality of sensing patterns SPN, SPNC1, SPNC2, SP1, SP2, SP3a and SP3b are divided into a normal sensing pattern SPN, a first groove sensing pattern SPNC1 and a second groove sensing pattern SPNC2 according to the set positions. In addition, according to which sensing patterns constitute the sensing electrodes, the plurality of sensing patterns SPN, SPNC1, SPNC2, SP1 and SP2 are divided into a first sensing pattern SP1, a second sensing pattern SP2, and third sensing patterns SP3a and SP3b.

[0088] For example, the normal sensing pattern SPN may be a sensing pattern disposed in the first sensing area SA1, the first groove sensing pattern SPNC1 may be a sensing pattern disposed in the second sensing area SA2, and the second groove sensing pattern SPNC2 may be a sensing pattern disposed in the third sensing area SA3. In addition, the sensing patterns arranged in the first direction DR1 and electrically connected to each other may constitute the first sensing electrode SE1. The sensing pattern constituting the first sensing electrode SE1 may be referred to as the first sensing pattern SP1. The sensing patterns disposed in the first sensing area SA1, disposed in the second direction DR2, and electrically connected to each other may constitute the second sensing electrode SE2. The sensing pattern constituting the second sensing electrode SE2 may be referred to as the second sensing pattern SP2. The sensing patterns disposed in the second sensing area SA2, disposed in the second direction DR2, and electrically connected to each other may constitute the third sensing electrode SE3a. The sensing patterns constituting the third sensing electrode SE3a may be referred to as the third sensing pattern SP3a. The sensing patterns disposed in the third sensing area SA3, disposed in the second direction DR2, and electrically connected to each other may constitute the third sensing electrode SE3b. The sensing patterns constituting the third sensing electrode SE3b may be referred to as the third sensing pattern SP3b.

[0089] For example, according to the sensing electrode formed by the normal sensing pattern SPN, the first groove sensing pattern SPNC1 and the second groove sensing pattern SPNC2, a part of the normal sensing pattern SPN, a part of the first groove sensing pattern SPNC1 and a part of the second groove sensing pattern SPNC2 can be called the first sensing pattern SP1, another part of the normal sensing pattern SPN can be called the second sensing pattern SP2, another part of the first groove sensing pattern SPNC1 can be called the third sensing pattern SP3a, and another part of the second groove sensing pattern SPNC2 can be called the third sensing pattern SP3b.

[0090] In an exemplary embodiment, the third sensing electrodes SE3a and SE3b may be collectively referred to as third sensing electrodes, and the third sensing electrodes include a first plurality of third sensing patterns SP3a disposed in the second sensing area SA2, arranged in the second direction DR2 and electrically connected to each other, and a second plurality of third sensing patterns SP3b disposed in the third sensing area SA3, arranged in the second direction DR2 and electrically connected to each other.

[0091] The plurality of first sensing electrodes SE1 may be arranged in the second direction DR2. The plurality of second sensing electrodes SE2 may be arranged in the first direction DR1.

[0092] exist Figure 5In the embodiment, the third sensing electrodes SE3a and SE3b are exemplarily disposed in the second sensing area SA2 and the third sensing area SA3, respectively. However, the present invention is not limited thereto. For example, in an exemplary embodiment, a plurality of third sensing electrodes SE3a and a plurality of third sensing electrodes SE3b may be disposed in the second sensing area SA2 and the third sensing area SA3, respectively.

[0093] The first sensing patterns SP1 may be electrically connected to each other through the first sensing connection electrode BSP1. The first sensing connection electrode BSP1 may electrically connect two first sensing patterns SP1 disposed adjacent to each other. The second sensing patterns SP2 may be electrically connected to each other through the second sensing connection electrode BSP2. The second sensing connection electrode BSP2 may electrically connect two second sensing patterns SP2 disposed adjacent to each other. The second sensing connection electrode BSP2 may be disposed on the same electrode layer as the two second sensing patterns SP2 disposed adjacent to each other, and may be formed integrally with the second sensing patterns SP2. The third sensing patterns SP3a may be electrically connected to each other through the third sensing connection electrode BSP3a, and the third sensing patterns SP3b may be electrically connected to each other through the third sensing connection electrode BSP3b.

[0094] In the first sensing area SA1, the first sensing connection electrode BSP1 and the second sensing connection electrode BSP2 cross each other in a plane and may be insulated from each other in a cross section. In the second sensing area SA2, the first sensing connection electrode BSP1 and the third sensing connection electrode BSP3a cross each other in a plane and may be insulated from each other in a cross section. In the third sensing area SA3, the first sensing connection electrode BSP1 and the third sensing connection electrode BSP3b cross each other in a plane and may be insulated from each other in a cross section. The second sensing connection electrode BSP2, the third sensing connection electrode BSP3a and the third sensing connection electrode BSP3b may be disposed on the same layer as each other and may be formed by the same process.

[0095] Sensing lines SL electrically connected to the first to third sensing electrodes SE1, SE2, SE3a, and SE3b may be disposed in the non-sensing area NSA. One end of each of the sensing lines SL may be connected to one of the first to third sensing electrodes SE1, SE2, SE3a, and SE3b, and the other end may be connected to the pad portion PD. The pad portion PD receives an electrical signal from an external driving circuit and may transmit the received electrical signal to at least one sensing line SL, or transmit an external touch sensing signal generated in the sensing area SA to the driving circuit.

[0096] The sensing lines SL may include a first sensing line SL1, a second sensing line SL2, a third sensing line SL3, and a fourth sensing line SL4. The first sensing line SL1 may be connected to one end of the first sensing electrode SE1, the second sensing line SL2 may be connected to one end of the second sensing electrode SE2, and the third sensing line SL3 may be connected to one end of the third sensing electrode SE3b. The fourth sensing line SL4 may be connected to the other end of the first sensing electrode SE1. For example, one side of the first sensing electrode SE1 is connected to the pad portion PD through the first sensing line SL1, and the other side of the first sensing electrode SE1 is connected to the pad portion PD through the fourth sensing line SL4. By connecting a plurality of sensing lines to one sensing electrode, problems such as reduced sensitivity due to a voltage drop of an electrical signal depending on a position may be improved.

[0097] The first trench sensing pattern SPNC1 and the second trench sensing pattern SPNC2 spaced apart from each other in the second direction DR2 may be electrically connected to each other through the connection line CL. For example, the third sensing electrode SE3a disposed in the second sensing area SA2 and the third sensing electrode SE3b disposed in the third sensing area SA3 may be electrically connected to each other through the connection line CL. One end of the connection line CL is connected to the third sensing electrode SE3a, and the other end of the connection line CL is connected to the third sensing electrode SE3b. Therefore, the third sensing electrode SE3a may receive an electrical signal from the driving circuit through the third sensing line SL3, or may transmit a sensing signal to the driving circuit.

[0098] The connection line CL may be disposed between the first sensing line SL1 and the first sensing area SA1. For example, the connection line CL may be disposed between the first sensing line SL1 and the normal sensing pattern SPN. The area in which the connection line CL is disposed may be the non-sensing area NSA between the second sensing area SA2 and the third sensing area SA3.

[0099] The first sensing line SL1 is spaced apart from the first sensing electrode SE1 in the first sensing area SA1 by the connection line CL. Therefore, the connection portion CM may be provided to connect the first sensing line SL1 and the first sensing electrode SE1 in the first sensing area SA1.

[0100] A portion of the connection portion CM is connected to the first sensing line SL1, and another portion of the connection portion CM is connected to the first sensing electrode SE1. Therefore, the first sensing line SL1 and the first sensing electrode SE1 may be electrically connected to each other. Figure 5 In the exemplary embodiment shown in FIG. 1 , the first sensing electrode SE1 connected to the connection portion CM may be the first sensing electrode SE1 constituted of the normal sensing pattern SPN.

[0101] The touch sensing layer 200 may further include a plurality of ground lines GL1 , GL2 , GL3 , and GL4 supplying a ground voltage to the first to third sensing areas SA1 , SA2 , and SA3 , respectively.

[0102] One end of the first ground line GL1 is connected to a first ground pad GP1 among a plurality of pads provided in the pad portion PD. The first ground line GL1 may extend substantially parallel to the third sensing line SL3 toward an upper right region of the non-sensing area NSA.

[0103] One end of the second ground line GL2 is connected to a second ground pad GP2 among a plurality of pads disposed in the pad portion PD. The second ground line GL2 may be disposed between the second sensing line SL2 and the fourth sensing line SL4.

[0104] One end of the third ground line GL3 is connected to a third ground pad GP3 among the plurality of pads provided in the pad portion PD. The third ground line GL3 may be provided between the first sensing line SL1 and the fourth sensing line SL4 up to the lower right region of the non-sensing area NSA, and may extend substantially parallel to the first sensing line SL1 toward the upper left region of the non-sensing area NSA.

[0105] One end of the fourth ground line GL4 is connected to a fourth ground pad GP4 among the plurality of pads provided in the pad portion PD. The fourth ground line GL4 may extend to the lower left region of the non-sensing area NSA in parallel with the first sensing line SL1, may extend from the lower left region to the upper left region, and may extend from the upper left region to the upper right region. When extending from the upper left region to the upper right region, the fourth ground line GL4 may be provided along a groove shape.

[0106] In an exemplary embodiment, one end of the first ground line GL1 and one end of the fourth ground line GL4 are not connected to each other.

[0107] It should be understood that Figure 5 The number and line shape of the ground lines shown in FIG. 1 are exemplary, and the present invention is not limited thereto. A detailed description of the ground line GL is provided below.

[0108] Reference Figure 6, the first sensing connection electrode BSP1 may be directly disposed on the package substrate ECL. The first insulating layer IL1 may be disposed between the first sensing connection electrode BSP1 and the second sensing connection electrode BSP2 and between the first sensing connection electrode BSP1 and the first sensing pattern SP1. The contact hole CNT may be disposed in the first insulating layer IL1. One or more contact holes CNT may be disposed only in an area overlapping with the first sensing connection electrode BSP1 on a plane. For example, in an exemplary embodiment, the one or more contact holes CNT are disposed only in an area overlapping with the first sensing connection electrode BSP1 on a plane, and are not disposed in other areas not overlapping with the first sensing connection electrode BSP1 on a plane. The first sensing pattern SP1 may contact the first sensing connection electrode BSP1 through the one or more contact holes CNT. For example, in an exemplary embodiment, a portion of the first sensing pattern SP1 may extend through the one or more contact holes CNT, and may directly contact the first sensing connection electrode BSP1 through the one or more contact holes CNT. The second sensing connection electrode BSP2 may be separated between the first sensing patterns SP1. For example, an opening may be disposed between adjacent first sensing patterns SP1, and the second sensing connection electrode BSP2 may be disposed in the opening. The second insulating layer IL2 may be disposed on the first sensing connection electrode BSP1 , the second sensing connection electrode BSP2 , and the first sensing pattern SP1 .

[0109] The first sensing patterns SP1 may be electrically connected to each other through the first sensing connection electrode BSP1. The first sensing connection electrode BSP1 may electrically connect two first sensing patterns SP1 disposed adjacent to each other. The second sensing patterns SP2 may be electrically connected to each other through the second sensing connection electrode BSP2. The second sensing connection electrode BSP2 may electrically connect two second sensing patterns SP2 disposed adjacent to each other. The first sensing connection electrode BSP1 and the second sensing connection electrode BSP2 may intersect each other in a plane and may be insulated from each other in a cross section.

[0110] Figure 7 According to an exemplary embodiment, Figure 5 An enlarged view of the area AA' shown in FIG. Figure 8 According to an exemplary embodiment, Figure 7 A cross-sectional view taken along line III-III' shown in FIG. Fig. 9 According to an exemplary embodiment, Figure 7 A cross-sectional view taken along line II-II' shown in FIG.

[0111] Reference Figure 7, both ends of the connection portion CM may extend from the first sensing pattern SP1 to the first driving line Tx8 in the first direction D1. When both ends of the connection portion CM and the first contact hole CNT1 overlap each other on a plane, charges accumulated on the first driving line Tx8 may flow into the connection line CL during discharge. This may damage the first insulating layer IL1 disposed between the connection portion CM and the connection line CL, and may cause a short circuit between the connection portion CM and the connection line CL. Figure 7 The exemplary embodiment shown in , may reduce the possibility that the first insulating layer IL1 may be damaged due to a discharge phenomenon occurring near the first contact hole CNT1 formed on the first driving line Tx8. Figure 6 The first sensing pattern SP1 shown in FIG. Figure 4 According to the normal sensing patterns SPN disposed in the first sensing area SA1 described in , the plurality of driving lines Tx0 to Tx8 may also be referred to as first sensing lines SL1.

[0112] exist Figure 7 In the embodiment, a plurality of first contact holes CNT1 are provided. However, the present invention is not limited thereto. For example, the first contact hole CNT1 may also be provided as a single hole. As long as the connection portion CM and the first driving line Tx8 can be connected, the arrangement form of the first contact hole CNT1 may be variously modified in any form.

[0113] To prevent short circuit, the first driving line Tx8 may be spaced apart from the connection line CL by a predetermined distance. As a result, according to exemplary embodiments, the first insulating layer IL1 overlapping the connection line CL on a plane may be less likely to be damaged by a discharge phenomenon occurring near the first contact hole CNT1 formed on the first driving line Tx8.

[0114] The touch sensing layer 200 may include a plurality of dummy lines DML1, DML2, DML3, DML4, DML5, DML6, DML7, and DML8. Here, the dummy lines are lines that do not provide signals. Some dummy lines may be arranged around the first driving line Tx8. For example, Figure 7 As shown in, in an exemplary embodiment, dummy lines DML4, DML5, DML6, and DML7 may surround a portion of the first driving line Tx8 in the second direction D2, and dummy lines DML1, DML2, DML3, DML7, and DML8 may surround a portion of the first driving line Tx8 in the first direction DR1. Some dummy lines on a plane may surround the periphery of a region in which the first contact hole CNT1 is formed. Some dummy lines may also be provided between the first driving line Tx8 and the connection line CL.

[0115] In addition, the ground line GL may be disposed around the second driving line Tx0. Figure 7In the embodiment, for the convenience of explanation, the grounding lines are not specifically distinguished, and the grounding lines are collectively referred to as GL. However, it should be understood that in an exemplary embodiment, the grounding line disposed around the second driving line Tx0 is the fourth grounding line GL4 described above. The grounding line GL and the first to eighth dummy lines DML1 to DML8 may be connected by bridge lines BR1 and BR2, respectively.

[0116] The bridge wire may include a first bridge wire BR1 and a second bridge wire BR2. The first bridge wire BR1 and the second bridge wire BR2 may extend in a first direction DR1, respectively. The first bridge wire BR1 may be disposed on one side relative to the connection portion CM, and the second bridge wire BR2 may be disposed on the other side of the connection portion CM. For example, in an exemplary embodiment, the first bridge wire BR1 and the second bridge wire BR2 may be symmetrically disposed relative to the connection portion CM.

[0117] The first bridge line BR1 crosses the ground line GL, the plurality of first sensing lines SL1, the plurality of dummy lines DML1 to DML7, and the connection line CL, and may be electrically connected to the ground line GL and the plurality of dummy lines DML1 to DML7 through the second contact hole CNT2. The second bridge line BR2 crosses the ground line GL, the plurality of first sensing lines SL1, the plurality of dummy lines DML1 to DML8, and the connection line CL, and may be electrically connected to the ground line GL and the plurality of dummy lines DML1 to DML8 through the third contact hole CNT3.

[0118] A plurality of dummy lines DML1 to DML8 may be divided into first dummy lines DML1 and second dummy lines DML2 to DML8. The first dummy line DML1 may be electrically connected to the first bridge line BR1 and the second bridge line BR2. The second dummy lines DML2 to DML8 may be divided into dummy lines DML4 to DML7 belonging to the first segment, and dummy lines DML4 to DML8 belonging to the second segment, and the dummy lines DML4 to DML8 belonging to the second segment are physically separated and insulated from the dummy lines DML4 to DML7 belonging to the first segment. The dummy lines DML4 to DML7 belonging to the first segment may be electrically connected to the first bridge line BR1 through the second contact hole CNT2, and the dummy lines DML4 to DML8 belonging to the second segment may be electrically connected to the second bridge line BR2 through the third contact hole CNT3.

[0119] Reference Figure 8 , the first driving line Tx8, the dummy lines DML1 to DML3, and the connection line CL are disposed on the same layer. For example, the first driving line Tx8, the dummy lines DML1 to DML3, and the connection line CL may be disposed on the base layer ECL. The first driving line Tx8, the dummy lines DML1 to DML3, and the connection line CL may be formed simultaneously by the same process.

[0120] The first driving line Tx8, the dummy lines DML1 to DML3, and the connection line CL are covered by the first insulating layer IL1. The connection portion CM and the first sensing pattern SP1 may be disposed on the first insulating layer IL1. The connection portion CM and the first sensing pattern SP1 may be formed simultaneously by the same process. The connection portion CM and the first sensing pattern SP1 are covered by the second insulating layer IL2. The first insulating layer IL1 and the second insulating layer IL2 may be inorganic layers or organic layers. In the case where the first insulating layer IL1 and the second insulating layer IL2 are inorganic layers, the first insulating layer IL1 and the second insulating layer IL2 may be formed of, for example, at least one of silicon oxide, silicon nitride, and silicon oxynitride. However, the present invention is not limited thereto.

[0121] The first insulating layer IL1 is disposed between the connection portion CM and the first driving line Tx8 in a cross section. One or more first contact holes CNT1 may be disposed in the first insulating layer IL1. One or more first contact holes CNT1 may be disposed in a region overlapping the connection portion CM on a plane. The connection portion CM may contact the first driving line Tx8 through the one or more first contact holes CNT1. For example, the connection portion CM may extend through the one or more first contact holes CNT1 and directly contact the first driving line Tx8.

[0122] The first sensing connection electrode BSP1 may be disposed on the same layer as the first driving line Tx8, the dummy lines DML1, DML2, and DML3, and the connection line CL, and the second sensing connection electrode BSP2 may be disposed on the same layer as the connection portion CM and the first sensing pattern SP1. The first sensing connection electrode BSP1 and the second sensing connection electrode BSP2 may be insulated from each other by a first insulating layer IL1 disposed therebetween.

[0123] In an exemplary embodiment, the connection portion CM may include the same material as the first sensing pattern SP1. For example, the connection portion CM may include a transparent conductive oxide. For example, the connection portion CM may include at least one of indium zinc oxide (IZO), indium tin oxide (ITO), indium gallium oxide (IGO), indium zinc gallium oxide (IZGO), and a mixture / composite thereof. In an exemplary embodiment, the connection portion CM may include a metal material. The metal material may include, for example, molybdenum, silver, titanium, copper, aluminum, or an alloy thereof.

[0124] according to Figure 8 In the exemplary embodiment shown in , one or more first contact holes CNT1 may be spaced apart from both ends of the connection portion CM. Therefore, even if the first insulating layer IL1 is damaged, the possibility that the charge released through the one or more first contact holes CNT1 flows through both ends of the connection portion CM may be reduced. Therefore, a short circuit between the connection portion CM and the connection line CL may be prevented, and product reliability may be improved.

[0125] Reference Fig. 9 , the driving lines Tx0 to Tx8, the dummy lines DML1 to DML7, and the connection lines CL are arranged on the same layer. For example, the driving lines Tx0 to Tx8, the dummy lines DML1 to DML7, and the connection lines CL may be arranged on the base layer ECL. The driving lines Tx0 to Tx8, the dummy lines DML1 to DML7, and the connection lines CL may be formed simultaneously by the same process. The driving lines Tx0 to Tx8, the dummy lines DML1 to DML7, and the connection lines CL are covered by the first insulating layer IL1.

[0126] The first bridge line BR1 may be disposed on the first insulating layer IL1. When the first sensing pattern SP1 is disposed on the first insulating layer IL1, the first bridge line BR1 may be disposed on the same layer as the first sensing pattern SP1. Therefore, the first bridge line BR1 and the first sensing pattern SP1 may be formed simultaneously by the same process. The first bridge line BR1 and the first sensing pattern SP1 are covered by the second insulating layer IL2.

[0127] The first insulating layer IL1 is disposed between the first bridge line BR1 and the dummy lines DML1 to DML7 in cross section. One or more second contact holes CNT2 may be disposed in the first insulating layer IL1. One or more second contact holes CNT2 may be disposed in a region overlapping each of the dummy lines DML1 to DML7 on a plane. The first bridge line BR1 may contact each of the dummy lines DML1 to DML7 through the one or more second contact holes CNT2. However, the present invention is not limited thereto. For example, the first bridge line BR1 may contact only some of the dummy lines DML1 to DML7.

[0128] The first bridge wire BR1 may include the same material as the first sensing pattern SP1. For example, the first bridge wire BR1 may include a transparent conductive oxide. For example, the first bridge wire BR1 may include at least one of indium zinc oxide (IZO), indium tin oxide (ITO), indium gallium oxide (IGO), indium zinc gallium oxide (IZGO), and a mixture / composite thereof. As another example, the first bridge wire BR1 may include a metal material. The metal material may include, for example, molybdenum, silver, titanium, copper, aluminum, or an alloy thereof.

[0129] according to Fig. 9In the exemplary embodiment shown in , each of the dummy lines DML1 to DML7 may be connected to the ground line GL. Therefore, the dummy lines DML1 to DML7 may perform the same function as the ground line GL, for example, supplying a ground voltage. As a result, the potential difference between the dummy lines DML1 to DML7 and the connection portion CM may be kept constant, so that the change in the mutual capacitance of the first drive line Tx8 may be minimized or reduced. That is, the change in the mutual capacitance of the first sensing line SL1 electrically connected to the connection portion CM may be minimized or reduced.

[0130] Charges may be accumulated in the first sensing line SL1 due to plasma used in the process or other reasons. After one or more first contact holes CNT1 are set in the first insulating layer IL1, the accumulated charges may be released through the one or more first contact holes CNT1. At this time, the first insulating layer IL1 adjacent to the region in which the one or more first contact holes CNT1 are formed may be damaged. Even if a region of the first insulating layer IL1 overlapping with at least one dummy line is damaged to cause a short circuit between the connecting portion CM and the dummy line, a signal is not provided to the dummy line, and therefore, a signal transmitted or received through the first driving line Tx8 may not be affected.

[0131] However, when a short circuit occurs between the connection portion CM and at least one dummy line, it can be recognized that the area of ​​the first drive line Tx8 is increased. As a result, a change in the mutual capacitance and / or resistance value of the first drive line Tx8 may be caused. That is, due to the difference between the load value around the second sensing area SA2 and the third sensing area SA3 and the load value of the first sensing area SA1, the touch sensing layer 200 may not be able to achieve a consistent touch recognition rate. In this case, a user of the display device may recognize a touch failure, and thus, the reliability of the product may be reduced.

[0132] according to Fig. 9 In the exemplary embodiment shown in , each of the dummy lines DML1 to DML7 can be connected to the ground line GL. The ground line GL can be electrically connected to an external circuit unit through a ground pad. For example, the external circuit unit can be a touch drive circuit. Therefore, when a short circuit occurs between the connection portion CM and the dummy line, the external circuit unit can sense the change in the mutual capacitance and / or resistance value of the first drive line Tx8, and the sensed change can be adjusted to the value of the mutual capacitance and / or resistance when the short circuit does not occur. That is, even when the connection portion CM electrically connected to the first sensing line SL1 and the dummy lines DML1 to DML7 are short-circuited, the touch sensing layer 200 can achieve a consistent touch recognition rate and can improve product reliability.

[0133] Hereinafter, an exemplary embodiment of a display device will be described. In the following description, for the convenience of explanation, further description of the elements and technical aspects previously described above will be omitted or simplified, and the differences thereof will be mainly described.

[0134] Fig.10 is a diagram showing a method according to an exemplary embodiment Figure 5 An enlarged plan view of the area AA' shown in FIG.

[0135] Reference Fig.10 ,and Figure 7 The difference compared to the exemplary embodiment is that: Fig.10 The bridge line BR2_1 of the exemplary embodiment is separately provided on the right side of the first driving line Tx8, and Figure 7 The dummy lines DML2 to DML8 shown in FIG. 1 are replaced by an integrally formed dummy line DML2_1 .

[0136] For example, the connection line CL may be spaced apart from the first driving line Tx8 of the first sensing line SL1. The dummy line DML2_1 may be disposed between the first driving line Tx8 and the connection line CL, and the dummy line DML1 may be disposed between the connection line CL and the first sensing pattern SP1. In addition, the ground line GL may also be disposed around the second driving line Tx0. The ground line GL and the dummy lines DML1 and DML2_1 may be connected to each other through the bridge line BR2_1. The dummy lines DML1 and DML2_1 and the bridge line BR2_1 may be connected to each other through the third contact hole CNT3_1. According to Fig.10 In an exemplary embodiment, when a short circuit occurs between the integrally formed dummy line DML2_1 and the connection portion CM, the amount of change in mutual capacitance and / or resistance value increases in a specific unit, and thus, the external circuit unit can effectively adjust the amount of load change. In an exemplary embodiment, the width of the dummy line may be about 10 microns, and the distance between the dummy lines may be about 4 microns. The dummy line may be integrally formed within a range where the width does not exceed about 100 microns. Although Fig.10 It is shown that only one bridge line BR2 - 1 is disposed on the right side of the first driving line Tx8 , but in an exemplary embodiment, another bridge line may be further disposed on the left side of the first driving line Tx8 .

[0137] Fig.11 According to an exemplary embodiment, Figure 5 An enlarged plan view of the area AA' shown in FIG.

[0138] Reference Fig.11 ,and Figure 7 The exemplary embodiments of the present invention differ in that: Fig.11The bridge line BR2_2 of the exemplary embodiment of FIG. 1 is disposed only on the right side of the first driving line Tx8 , and the bridge line BR2_2 is connected only to the dummy lines DML1 , DML2 , and DML3 .

[0139] For example, the connection line CL may be spaced apart from the first driving line Tx8 of the first sensing line SL1. The dummy lines DML2 to DML8 may be disposed between the first driving line Tx8 and the connection line CL, and the dummy line DML1 may be disposed between the connection line CL and the first sensing pattern SP1. In addition, the ground line GL may also be disposed around the second driving line Tx0. The ground line GL and the dummy lines DML1, DML2, and DML3 may be connected to each other through the bridge line BR2_2. The dummy lines DML1, DML2, and DML3 and the bridge line BR2_2 may be connected to each other through the third contact hole CNT3_2. According to an exemplary embodiment, the dummy lines having a high probability of causing a short circuit with the connection portion CM may be the dummy lines DML2 and DML3 disposed between the first driving line Tx8 and the connection line CL, and the dummy line DML1 disposed between the connection line CL and the first sensing pattern SP1. However, if scratches are generated in the process, a short circuit with the connection portion CM may occur for the adjacent dummy lines DML4 to DML8. According Fig.11 The exemplary embodiment shown in , by minimizing or reducing the dummy lines that short-circuit the connecting portion CM, can minimize or reduce the amount of change in mutual capacitance and / or resistance value when a short circuit occurs, and minimize or reduce the bridge lines BR1 and BR2.

[0140] Fig.12 According to an exemplary embodiment, Figure 5 An enlarged plan view of the area BB' shown in FIG.

[0141] Reference Fig.12 , both ends of the first connection portion CM1 may extend from the first sensing pattern SP1 to the first driving line Tx8 in the first direction DR1. Both ends of the second connection portion CM2 may extend from the second sensing pattern SP2 to the third driving line Tx7 in the first direction DR1. Both ends of the third connection portion CM3 may extend from the third sensing pattern SP2 to the fourth driving line Tx6 in the first direction DR1.

[0142] When both ends of the first to third connection portions CM1 to CM3 and the first contact hole CNT1 overlap each other on a plane, respectively, the charges accumulated on the first to fourth drive lines Tx8 to Tx6 may flow into the connection line CL during discharge. This may damage the first insulating layer IL1 disposed between each of the first to third connection portions CM1 to CM3 and the connection line CL, and may result in a result in which each of the first to third connection portions CM1 to CM3 and the connection line CL are short-circuited. Fig.12 According to an exemplary embodiment, the possibility that the first insulating layer IL1 is damaged due to a discharge phenomenon occurring near the first contact hole CNT1 formed on each of the first to fourth driving lines Tx8 to Tx6 can be reduced. Fig.12 The first to third sensing patterns SP1 to SP3 shown in FIG. 1 may also be referred to as normal sensing patterns SPN disposed in the first to third sensing areas SA1 to SA3 , and the plurality of driving lines Tx0 to Tx8 may also be referred to as first sensing lines SL1 .

[0143] exist Fig.12 , it is shown that a plurality of first contact holes CNT1 are provided. However, the present invention is not limited thereto. For example, the first contact hole CNT1 may also be provided as a single hole. As long as the first contact hole CNT1 can connect the first connection portion CM1 and the first driving line Tx8, the second connection portion CM2 and the third driving line Tx7, and the third connection portion CM3 and the fourth driving line Tx6, the arrangement form of the first contact hole CNT1 may be variously modified in any form.

[0144] In order to prevent unnecessary short circuits, the first to fourth driving lines Tx8 to Tx6 may be spaced apart from the connection lines CL by a predetermined distance. As a result, the possibility of the first insulating layer IL1 overlapping the connection lines CL on a plane being damaged by a discharge phenomenon occurring near the first contact holes CNT1 formed on the first, third, and fourth driving lines Tx8, Tx7, and Tx6 may be reduced.

[0145] Dummy lines DML1, DML2_2, DML3_1, DML4_1, DML5_1, DML6_1, DML7_1, and DML8_1 may also be disposed around the first driving line Tx8. The first dummy line DML1 to the ninth dummy line DML9_1 may also be disposed around the third driving line Tx7. The first dummy line DML1 to the tenth dummy line DML10 may also be disposed around the fourth driving line Tx6. The dummy line is a line to which no signal is provided. The dummy lines DML1 to DML10 on the plane may be disposed to surround the periphery of the region in which the first contact hole CNT1 is formed.

[0146] Fig.12The first dummy line DML1 to the tenth dummy line DML10 shown in are individually provided for each of the first drive line Tx8, the third drive line Tx7, and the fourth drive line Tx6. As a result, the area of ​​the dummy line connected to the bridge lines BR1 and BR2 to be described below can be reduced. That is, when a short circuit occurs between the connection portion CM and the connection line CL, the change in the mutual capacitance and / or resistance value of the dummy line connected to each of the bridge lines BR1 and BR2 can be minimized or reduced. However, the present invention is not limited thereto. For example, each of the first dummy line DML1 to the tenth dummy line DML10 can be formed integrally.

[0147] Some dummy lines may also be provided between the first driving line Tx8 and the connection line CL.

[0148] In addition, a ground line GL providing a ground voltage may be disposed around the second driving line Tx0. Here, the ground line GL may be referred to as the fourth ground line GL4. The ground line GL and the first to tenth dummy lines DML1 to DML10 may be connected to each other through bridge lines BR1 and BR2, respectively.

[0149] The bridge wires BR1 and BR2 may be disposed on the left and right sides of each of the first to third connection portions CM1 to CM3, respectively. As a result, the area of ​​the dummy line to which each of the bridge wires BR1 and BR2 is connected may be reduced. For example, when a short circuit occurs between the connection portion CM and the connection line CL, a change in the mutual capacitance and / or resistance value of the dummy line connected to each of the bridge wires BR1 and BR2 may be minimized or reduced.

[0150] The first insulating layer IL1 is disposed between the first bridge wire BR1 and the second bridge wire BR2 and the dummy lines DML1 to DML10 in a cross section. The second contact hole CNT2 and the third contact hole CNT3 may be disposed in the first insulating layer IL1. The second contact hole CNT2 and the third contact hole CNT3 may be disposed in a region overlapping each of the dummy lines DML1 to DML10 on a plane. The first bridge wire BR1 and the second bridge wire BR2 may contact the corresponding dummy lines DML1 to DML10 through the second contact hole CNT2 and the third contact hole CNT3. However, the present invention is not limited thereto. For example, in an exemplary embodiment, the first bridge wire BR1 and the second bridge wire BR2 may contact only some of the dummy lines DML1 to DML10.

[0151] Fig.13 According to an exemplary embodiment, Figure 5An enlarged plan view of the area BB' shown in FIG.

[0152] Reference Fig.13 ,and Fig.12 The exemplary embodiments of the present invention differ in that: Fig.13 The bridge line BR1_1 of the exemplary embodiment is separately provided on the left side of the first to third connection parts CM1 to CM3, and the integrally formed dummy line DML3_2 is used instead. Fig.12 The dummy lines DML2_2 to DML3_1 provided between the first driving line Tx8 and the connection line CL are shown in the figure, the dummy lines DML4_2 formed as a whole are used to replace the dummy lines DML2_2 to DML4_1 provided between the third driving line Tx7 and the connection line CL, and the dummy lines DML5_2 formed as a whole are used to replace the dummy lines DML2_2 to DML5_1 provided between the fourth driving line Tx6 and the connection line CL.

[0153] For example, the connection line CL may be spaced apart from the first driving line Tx8, the third driving line Tx7, and the fourth driving line Tx6 of the first sensing line SL1. The dummy lines DML3_2, DML4_2, and DML5_2 may be respectively disposed between the first driving line Tx8, the third driving line Tx7, and the fourth driving line Tx6 and the connection line CL, and the dummy line DML1 may be disposed between the connection line CL and the first to third sensing patterns SP1, SP2, and SP3. In addition, the ground line GL may also be disposed around the second driving line Tx0. The ground line GL and the dummy lines DML1, DML3_2, DML4_2, and DML5_2 may be respectively connected to each other through the bridge line BR1_1. The dummy lines DML1, DML3_2, DML4_2, and DML5_2 and the bridge line BR1_1 may be connected to each other through the second contact hole CNT2_1. According to Fig.13 In an exemplary embodiment, when a short circuit occurs between the integrally formed dummy lines DML3_2, DML4_2, and DML5_2 and the first to third connection parts CM1, CM2, and CM3, the amount of change in mutual capacitance and / or resistance value increases by a specific unit, and thus, the external circuit unit can effectively adjust the amount of load change. In an exemplary embodiment, the width of the dummy line may be about 10 microns, and the distance between the dummy lines may be about 4 microns. The dummy line may be integrally formed within a range in which the width does not exceed about 100 microns.

[0154] Fig.14 According to an exemplary embodiment, Figure 5 An enlarged plan view of the area BB' shown in FIG.

[0155] Reference Fig.14 ,and Fig.12The exemplary embodiments of the present invention differ in that: Fig.14 The second bridge line BR2_3 of the exemplary embodiment is disposed on the right side of the third connection portion CM3, the first dummy line DML1, the second dummy line DML2_2 and the third dummy line DML3_2 are integrally formed through the first connection portion to the third connection portions CM1, CM2 and CM3, and some regions of the fourth dummy line DML4_2 to the ninth dummy line DML9_2 are electrically connected to each other.

[0156] For example, the connection line CL may be spaced apart from the first drive line Tx8, the third drive line Tx7, and the fourth drive line Tx6 of the first sensing line SL1. The dummy lines DML2_2, DML3_2, DML4_2, and DML5_2 may be respectively disposed between the first drive line Tx8, the third drive line Tx7, the fourth drive line Tx6, and the connection line CL. One end of each of the fourth to seventh dummy lines DML4_2, DML5_2, DML6_2, and DML7_2 disposed around the first connection portion CM1 may be electrically connected to each other along the left side of the first drive line Tx8. One end of each of the fifth to eighth dummy lines DML5_2, DML6_2, DML7_2, and DML8_2 disposed around the second connection portion CM2 may be electrically connected to each other along the left side of the third drive line Tx7. One end of each of the sixth to ninth dummy lines DML6_2, DML7_2, DML8_2, and DML9_2 disposed around the third connection portion CM3 may be electrically connected to each other along the left side of the third driving line Tx7. The dummy line DML1 may be disposed between the connection line CL and the first to third sensing patterns SP1, SP2, and SP3.

[0157] In addition, the ground line GL may be disposed around the second driving line Tx0. The ground line GL and the dummy lines DML1, DML2_2, DML3_2, DML4_2, DML5_2, DML6_2, DML7_2, DML8_2, DML9_2, and DML10 may be connected to each other through the second bridge line BR2_3, respectively. The dummy lines DML1, DML2_2, DML3_2, DML4_2, DML5_2, DML6_2, DML7_2, DML8_2, DML9_2, and DML10 and the second bridge line BR2_3 may be connected to each other through the third contact hole CNT3_3. Fig.14In an exemplary embodiment, when a short circuit occurs between the first to tenth dummy lines DML1, DML2_2, DML3_2, DML4_2, DML5_2, DML6_2, DML7_2, DML8_2, DML9_2 and DML10 and the first to third connection parts CM1, CM2 and CM3, the load value is changed in units of the first dummy line DML1 or the second to tenth dummy lines DML2_2, DML3_2, DML4_2, DML5_2, DML6_2, DML7_2, DML8_2, DML9_2 and DML10 electrically connected to each other, and thus, the mutual capacitance and / or resistance can be increased in specific units. As a result, the external circuit unit can effectively adjust the load change amount. In addition, since the bridge line BR2_3 can be separately set on the right side of the third connection part CM3, the bridge line BR2_3 can be minimized or reduced. Furthermore, even when the display device is enlarged, a plurality of dummy lines can be electrically connected to each other without a processing burden.

[0158] As described above, according to the display device of the exemplary embodiment of the present invention, it is possible to minimize or reduce the variation of the mutual capacitance of the touch sensor disposed in the groove area.

[0159] Furthermore, according to the display device of the exemplary embodiment of the present invention, when a short circuit occurs between the sensing line and the dummy line, a change in mutual capacitance of the touch sensor can be adjusted through the ground line.

[0160] The effects of the exemplary embodiments are not limited to those exemplified above, and other various effects are included in this specification.

[0161] While the present invention has been particularly shown and described with reference 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 claims.

Claims

1. A touch sensor, comprising: The substrate layer has a sensing region and a non-sensing region disposed adjacent to the sensing region. wherein the sensing area includes a first sensing area, a second sensing area protruding from the first sensing area in a first direction in a plan view, and a third sensing area spaced apart from the second sensing area in the plan view and protruding from the first sensing area in the first direction, and a portion of the non-sensing area is disposed between the second sensing area and the third sensing area in the plan view; a plurality of sensing patterns, including a first sensing pattern disposed in the first sensing region, a second sensing pattern disposed in the second sensing region, and a third sensing pattern disposed in the third sensing region; a sensing line disposed in the non-sensing area and electrically connected to the first sensing pattern; a connecting line disposed in the portion of the non-sensing area between the second sensing area and the third sensing area and disposed between the sensing line and the first sensing pattern, wherein the connecting line electrically connects the second sensing pattern and the third sensing pattern; a connecting part, electrically connecting the sensing line and the first sensing pattern; a dummy line, arranged between the sensing line and the connecting line; a ground line disposed in the non-sensing area, wherein the ground line transmits a ground voltage from the first sensing area to the third sensing area; and A bridge line electrically connects the ground line and the dummy line.

2. The touch sensor according to claim 1, further comprising: Insulation layer, Wherein, the dummy line and the ground line are formed by a first conductive layer, The bridge line is formed by the second conductive layer, and The insulating layer is disposed between the first conductive layer and the second conductive layer.

3. The touch sensor according to claim 2, further comprising: A contact hole, passing through the insulating layer, The ground line and the dummy line are electrically connected to the bridge line through the contact hole.

4. The touch sensor according to claim 2, in, The sensing line is formed from the first conductive layer.

5. The touch sensor according to claim 2, in, The connection portion is formed from the second conductive layer.

6. The touch sensor according to claim 5, further comprising: A contact hole, passing through the insulating layer, The connecting portion is electrically connected to the sensing line through the contact hole.

7. The touch sensor according to claim 1, in, The ground line and the dummy line extend in a second direction intersecting the first direction, and the bridge line extends in the first direction.

8. The touch sensor according to claim 1, in, The bridge wire includes a first bridge wire and a second bridge wire, and The first bridge wire and the second bridge wire are symmetrically arranged with respect to the connection portion.

9. The touch sensor according to claim 8, in, The dummy line includes a first dummy line and a second dummy line, The first dummy line is electrically connected to the first bridge line and the second bridge line, and The second dummy line includes a first segment and a second segment physically separated from the first segment, wherein the first segment is electrically connected to the first bridge line, and the second segment is electrically connected to the second bridge line.

10. The touch sensor according to claim 9, in, The first dummy line and the second dummy line are integrally formed.

11. The touch sensor according to claim 9, in, The dummy lines further include a third dummy line disposed between the connecting line and the first sensing pattern.

12. The touch sensor according to claim 11, in, The bridge line electrically connects the ground line and the first to third dummy lines.

13. The touch sensor according to claim 1, in, An area of ​​the first sensing region is larger than an area of ​​the second sensing region and larger than an area of ​​the third sensing region.

14. The touch sensor according to claim 1, in, The bridge line includes a transparent conductive oxide.

15. A display device, comprising: A display component for displaying an image; The substrate layer has a sensing region and a non-sensing region disposed adjacent to the sensing region. wherein the sensing area includes a first sensing area, a second sensing area protruding from the first sensing area in a first direction in a plan view, and a third sensing area spaced apart from the second sensing area in the plan view and protruding from the first sensing area in the first direction, and a portion of the non-sensing area is disposed between the second sensing area and the third sensing area in the plan view; a first sensing electrode comprising a plurality of first sensing patterns disposed in the first sensing region, wherein the plurality of first sensing patterns are arranged in the first direction and are electrically connected to each other; a second sensing electrode including a plurality of second sensing patterns disposed in the first sensing region, wherein the plurality of second sensing patterns are arranged in a second direction crossing the first direction and are electrically connected to each other; A third sensing electrode, comprising: a first plurality of third sensing patterns disposed in the second sensing region, arranged in the second direction and electrically connected to each other, and a second plurality of third sensing patterns disposed in the third sensing region, arranged in the second direction and electrically connected to each other; A first sensing line, electrically connected to one end of the first sensing electrode; a second sensing line electrically connected to one end of the second sensing electrode; a connecting line disposed in the portion of the non-sensing area between the second sensing area and the third sensing area and electrically connecting the first plurality of third sensing patterns and the second plurality of third sensing patterns, wherein the connecting line is disposed between the first sensing line and the first sensing electrode; a connecting portion, electrically connecting the first sensing line and the plurality of first sensing patterns; a dummy line, arranged between the first sensing line and the connecting line; a ground line disposed in the non-sensing area, wherein the ground line transmits a ground voltage from the first sensing area to the third sensing area; and A bridge line electrically connects the ground line and the dummy line.

16. The display device according to claim 15, further comprising: Insulation layer, Wherein, the dummy line and the ground line are formed by a first conductive layer, The bridge line is formed by the second conductive layer, and The insulating layer is disposed between the first conductive layer and the second conductive layer.

17. The display device according to claim 16, further comprising: A contact hole, passing through the insulating layer, The ground line and the dummy line are electrically connected to the bridge line through the contact hole.

18. The display device according to claim 15, in, The ground line and the dummy line extend in the second direction, and the bridge line extends in the first direction.

19. The display device according to claim 15, in, The bridge wire includes a first bridge wire and a second bridge wire, and The first bridge wire and the second bridge wire are symmetrically arranged with respect to the connection portion.

20. The display device according to claim 19, in, The dummy line includes a first dummy line and a second dummy line, The first dummy line is electrically connected to the first bridge line and the second bridge line, and The second dummy line includes a first segment and a second segment physically separated from the first segment, wherein the first segment is electrically connected to the first bridge line, and the second segment is electrically connected to the second bridge line.

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