Display device

Abstract

A display device is provided. The display device includes: a window having a light shielding region and a transmission region; a display panel disposed below the window; and an input detection sensor disposed between the window and the display panel, and including a first electrode, a second electrode, a first signal line connected to one end of the first electrode, a second signal line connected to one end of the second electrode, and a third signal line connected to the other end of the second electrode. Each of the first to n-th first signal lines includes a bent portion bent a plurality of times, a resistance of the bent portion decreases in a first direction, and the first to n-th first signal lines are connected to a first electrode disposed away from the bent portion in the first direction, the bent portions of the first to n-th first signal lines overlap the light shielding region.

Description

[0001] This application is a divisional application of a patent application with an application date of September 9, 2019, application number “201910847839.1”, and invention name “Display Device”. Technical Field

[0002] Exemplary embodiments of the invention generally relate to a display device, and more particularly, to a display device including an input detection sensor. Background Art

[0003] Various display devices are being developed for multimedia devices such as televisions, mobile phones, tablet computers, navigation devices, game consoles, etc. Input devices of the display devices include keyboards, mice, etc. In addition, the display devices include touch panels as input devices.

[0004] The above information disclosed in this Background section is only for understanding the background of the inventive concept and therefore it may contain information that does not constitute the prior art. Summary of the invention

[0005] The display device constructed according to the exemplary embodiment of the invention can reduce the visual recognition phenomenon of the wiring or signal line.

[0006] Additional features of the inventive concepts will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the inventive concepts.

[0007] A display device according to an exemplary embodiment includes: a window including a light shielding pattern and a base layer, the base layer including a light shielding area in which the light shielding pattern is disposed and a transmissive area adjacent to the light shielding area; a display panel disposed below the window; and an input detection sensor disposed between the window and the display panel, the input detection sensor having a wiring area corresponding to the light shielding area and a sensing area corresponding to the transmissive area. The input detection sensor includes: a first electrode group including first to i-th electrodes (wherein "i" is a natural number equal to or greater than 2), the first to i-th electrodes being arranged in a first direction away from a pad area defined on one side of the light shielding area and extending in a second direction intersecting the first direction; a second electrode group including first to j-th electrodes intersecting with electrodes in the first electrode group (wherein "j" is a natural number equal to or greater than 2); a first signal line group including first to i-th signal lines electrically connected to the first to i-th electrodes in the first electrode group; and a second signal line group including first to j-th signal lines electrically connected to the first to j-th electrodes in the second electrode group. Each of the first to n-th signal lines (wherein "n" is a natural number less than i) in the first signal line group includes: a first portion extending from the pad area in a first direction; a second portion connected to a corresponding electrode in the first electrode group; and a third portion arranged between the pad area and the sensing area, having a shape bent multiple times and connecting the first portion to the second portion, wherein the third portion of the first signal line in the first signal line group has a length greater than that of the third portion of the n-th signal line in the first signal line group and a resistance higher than that of the third portion of the n-th signal line in the first signal line group, and at least a portion of the first to n-th signal lines in the first signal line group overlaps with the shading pattern in a plan view.

[0008] Resistances of the first to i-th signal lines in the first signal line group may be substantially the same.

[0009] A third portion of each of the first to n-th signal lines in the first signal line group may overlap the light shielding pattern in a plan view.

[0010] The first to j-th signal lines in the second signal line group may be connected to one end portions of the first to j-th electrodes in the second electrode group, respectively. One end portion of the first to j-th electrodes in the second electrode group is adjacent to the pad region.

[0011] The first to j-th signal lines in the second signal line group may have lengths greater than those of the first to i-th signal lines in the first signal line group.

[0012] The jth signal line in the second signal line group can be set to be farthest from the first electrode in the second electrode group in the second direction, and the jth signal line in the second signal line group can include a first extension portion to an mth extension portion (wherein "m" is a natural number equal to or greater than 2) arranged in the second direction and a first middle portion to an m-1th middle portion arranged between the first extension portion to the mth extension portion.

[0013] The m-th extension portion may be connected to the j-th electrode in the second electrode group.

[0014] The first to m-th middle portions of the j-th signal line may become closer to the sensing region in a direction from the first middle portion of the j-th signal line to the m-th middle portion of the j-th signal line.

[0015] A first middle portion of the j-th signal line in the second signal line group may overlap the light shielding pattern.

[0016] The third portion of the first signal line in the first signal line group may include: a base portion extending from the first portion in the second direction; a first extension portion to a kth extension portion (wherein "k" is a natural number equal to or greater than 2), which are spaced apart from the base portion in the first direction; and an intermediate portion arranged between the base portion and the first extension portion and between the first extension portion to the kth extension portion (wherein "k" is a natural number equal to or greater than 2), and the first extension portion to the kth extension portion can become farther away from the base portion in the direction from the first extension portion to the kth extension portion.

[0017] The jth signal line in the second signal line group can be connected to the jth electrode in the second electrode group, the jth signal line in the second signal line group can include a first extension portion to an mth extension portion arranged in the second direction (wherein "m" is a natural number equal to or greater than 2) and an intermediate portion arranged between the first extension portion to the mth extension portion, and the first extension portion to the kth extension portion of the first signal line in the first signal line group can be arranged in a one-to-one correspondence with at least a portion of the first extension portion to the mth extension portion of the jth signal line in the second signal line group.

[0018] In a plan view, the first extension portion of the third portion of the first signal line in the first signal line group may overlap with the light shading pattern, the kth extension portion of the third portion of the first signal line in the first signal line group may not overlap with the light shading pattern, and the kth extension portion may have a line width greater than that of the first extension portion.

[0019] The j-th signal line in the second signal line group may include a first layer and a second layer, the first layer is arranged below the insulating layer, the second layer is arranged on the insulating layer and connected to the first layer via a contact hole penetrating the insulating layer; the contact hole may overlap with the end region of the middle part or the extended part adjacent to the middle part in a plan view.

[0020] The display panel may include a non-display area corresponding to the shading area and a display area corresponding to the transmission area, the display area may include a light-emitting area and a non-light-emitting area adjacent to the light-emitting area, and each of the first to i-th electrodes has a grid shape including an opening corresponding to the light-emitting area.

[0021] The display panel may include a circuit layer, a display element layer located on the circuit layer, and an upper insulating layer located on the display element layer, and the input detection sensor may be directly disposed on the upper insulating layer.

[0022] Each of the first to i-th signal lines in the first signal line group may include a first titanium layer, an aluminum layer on the first titanium layer, and a second titanium layer on the aluminum layer.

[0023] Line widths of third portions of the first to i-th signal lines in the first signal line group may be substantially the same.

[0024] Each of the display panel and the input detection sensor may include a notch area recessed inwardly in a plan view, the first signal line to the i-th signal line in the first signal line group may be respectively connected to one end of the first electrode to the i-th electrode in the first electrode group, one end of the first electrode to the i-th electrode in the first electrode group may be aligned in a row in the first direction, the length of the first electrode to the p-th electrode (wherein "p" is a natural number greater than 1 and less than i) in the first electrode group in the second direction may be greater than the length of the p+1-th electrode to the i-th electrode in the first electrode group in the second direction, and the other end of the p+1-th electrode to the i-th electrode in the first electrode group may be adjacent to the notch area.

[0025] The first signal line to the jth signal line in the second signal line group can be respectively connected to one end of the first electrode to the jth electrode in the second electrode group, one end of the first electrode to the jth electrode in the second electrode group can be adjacent to the pad area and aligned in a row in the second direction, the length of the first electrode to the qth electrode (wherein "q" is a natural number greater than 1 and less than j) in the second electrode group in the first direction can be shorter than the length of the q+1th electrode to the jth electrode in the second electrode group in the first direction, and the other end of the first electrode to the qth electrode in the first electrode group can be adjacent to the notch area.

[0026] Each of the display panel and the input detection sensor may include a hole area, the hole area of ​​the display panel and the hole area of ​​the input detection sensor may be aligned in a plan view, and the hole area of ​​the input detection sensor may be defined inside the sensing area.

[0027] According to another exemplary embodiment, a display device includes: a window including a light shielding region and a transmission region adjacent to the light shielding region; a display panel disposed below the window; and an input detection sensor disposed between the window and the display panel, wherein the input detection sensor includes: a first electrode; a second electrode insulated from the first electrode and intersecting the first electrode; a first signal line group, wherein the first signal line to the nth signal line included in the first signal line group are respectively connected to one end of the first electrode; a second signal line connected to one end of the second electrode; and a third signal line connected to the other end of the second electrode. Each of the first signal line to the nth signal line (wherein "n" is a natural number equal to or greater than 2) in the first signal line group includes a bent portion bent multiple times, the resistance of the bent portion of the first signal line to the nth signal line decreases in a direction from the first signal line to the nth signal line, the first signal line to the nth signal line are connected to the first electrode, the first electrode is sequentially arranged in a manner of gradually moving away from the bent portion in order from the first signal line to the nth signal line, and the bent portions of the first signal line to the nth signal line overlap with the light shielding region in a plan view.

[0028] One end of the second electrode can be arranged closer to the bending portion than the other end of the second electrode, the second signal line includes an extension portion extending in the same direction as the direction in which the first electrode extends, and in a plan view, a portion of the extension portion of the second signal line overlaps with the light-shielding area, and another portion of the extension portion of the second signal line can be exposed from the light-shielding area.

[0029] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings illustrate exemplary embodiments of the invention and together with the description serve to explain the inventive concept, wherein the accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification.

[0031] Figure 1 is a perspective view showing a display device according to an exemplary embodiment.

[0032] Figure 2A , Figure 2B , Figure 2C and Figure 2D is a cross-sectional view of a display device according to an exemplary embodiment.

[0033] Figure 3A and Figure 3B is a cross-sectional view of a display panel according to an exemplary embodiment.

[0034] Figure 4 is a plan view showing a display panel according to an exemplary embodiment.

[0035] Figure 5A is an enlarged cross-sectional view of a display panel according to an exemplary embodiment.

[0036] Figure 5B is an enlarged cross-sectional view of an upper insulating layer according to an exemplary embodiment.

[0037] Fig. 6A is a cross-sectional view of an input detection sensor according to an exemplary embodiment.

[0038] Figure 6B is a plan view illustrating an input detection sensor according to an exemplary embodiment.

[0039] Figure 6C is along Figure 6B A cross-sectional view of the input detection sensor taken along line II'.

[0040] Fig.6D is along Figure 6B A cross-sectional view of the input detection sensor taken along line II-II'.

[0041] Fig. 6E is a cross-sectional view of a signal line according to an exemplary embodiment.

[0042] Fig. 6F yes Figure 6B An enlarged plan view of area AA.

[0043] Fig. 7A is an enlarged plan view of a portion of an input detection sensor according to an exemplary embodiment.

[0044] Figure 7B is along Fig. 7A A cross-sectional view of the display device taken along line III-III'.

[0045] Figure 7C yes Fig. 7A An enlarged plan view of area BB.

[0046] Fig. 8A is an enlarged plan view of a portion of an input detection sensor according to an exemplary embodiment.

[0047] Figure 8B yes Fig. 8A An enlarged plan view of area BB.

[0048] Figure 8C is an enlarged plan view of a portion of an input detection sensor according to an exemplary embodiment.

[0049] Fig.9A is a perspective view of a display module according to an exemplary embodiment.

[0050] Fig. 9B is a plan view illustrating an input detection sensor according to an exemplary embodiment.

[0051] Fig. 10A is a perspective view of a display module according to an exemplary embodiment.

[0052] Fig. 10B is a plan view illustrating an input detection sensor according to an exemplary embodiment.

[0053] Fig.11A is a perspective view of a display module according to an exemplary embodiment.

[0054] Fig. 11B is a plan view illustrating an input detection sensor according to an exemplary embodiment. DETAILED DESCRIPTION

[0055] In the following description, for the purpose of explanation, in order to provide a thorough understanding of the various exemplary embodiments or embodiments of the invention, many specific details are set forth. "Embodiment" and "implementation" as used herein are interchangeable words for non-limiting examples of devices or methods using one or more inventive concepts disclosed herein. However, it is apparent that various exemplary embodiments can be implemented without these specific details or with one or more equivalent arrangements. In other cases, well-known structures and devices are shown in block diagram form to avoid making various exemplary embodiments unnecessarily obscure. In addition, various exemplary embodiments can be different, and need not be exclusive. For example, without departing from the inventive concept, the specific shape, construction and characteristics of the exemplary embodiment can be used or implemented in another exemplary embodiment.

[0056] Unless otherwise specified, the illustrated exemplary embodiments will be understood as exemplary features that provide different details of some ways in which the inventive concept can actually be implemented. Therefore, unless otherwise specified, the features, components, modules, layers, films, panels, regions and / or aspects of the various embodiments, etc. (hereinafter, individually or collectively referred to as "elements") may be further combined, separated, interchanged and / or rearranged without departing from the inventive concept.

[0057] The use of cross hatching and / or shading in the drawings is generally provided to make the boundaries between adjacent elements clear. Thus, unless otherwise specified, the presence or absence of cross hatching or shading does not convey or indicate any preference or demand for a specific material, material property, size, ratio, commonality between the elements shown, and / or any other characteristics, attributes, properties, etc. of the elements. In addition, in the drawings, the size and relative size of the elements may be exaggerated for clarity and / or descriptive purposes. When the exemplary embodiments may be implemented differently, the specific process sequence may be performed differently from the described sequence. For example, two continuously described processes may be performed substantially simultaneously or in an order opposite to the described sequence. In addition, the same reference numerals represent the same elements.

[0058] When an element or layer is referred to as being "on" another element or layer, "connected to" or "bonded to" another element or layer, the element or layer may be directly on, directly connected to or directly bonded to the other element or layer, or there may be an intermediate element or layer. However, when an element or layer is referred to as being "directly on" another element or layer, "directly connected to" or "directly bonded to" another element or layer, there is no intermediate element or layer. For this reason, the term "connection" may refer to a physical connection, an electrical connection and / or a fluid connection with or without an intermediate element. In addition, the D1 axis, the D2 axis, and the D3 axis are not limited to the three axes of a rectangular coordinate system (such as, the x-axis, the y-axis and the z-axis), and may be interpreted in a broader sense. For example, the D1 axis, the D2 axis and the D3 axis may be perpendicular to each other, or may represent different directions that are not perpendicular to each other. For the purpose of this disclosure, "at least one of X, Y, and Z" and "at least one selected from the group consisting of X, Y, and Z" may be interpreted as only X, only Y, only Z, or any combination of two or more of X, Y, and Z, such as XYZ, XYY, YZ, and ZZ. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0059] Although the terms "first", "second", etc. may be used herein to describe various types of elements, these elements should not be limited by these terms. These terms are used to distinguish one element from another element. Therefore, the first element discussed below may be named as the second element without departing from the disclosed teachings.

[0060] For descriptive purposes, spatially relative terms such as "under," "beneath," "below," "above," "upper," "on," "higher," "side" (e.g., as in "sidewall"), etc., may be used herein to describe the relationship of one element to another element as shown in the accompanying drawings. 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, operation, and / or manufacture. For example, if the device in the accompanying drawings is turned over, an element described as "under" or "beneath" other elements or features would subsequently be positioned as "above" the other elements or features. Thus, the exemplary term "under" can include both above and below orientations. Additionally, the device may be otherwise positioned (e.g., rotated 90 degrees or at other orientations), and as such, the spatially relative descriptors used herein should be interpreted accordingly.

[0061] The terms used herein are for the purpose of describing specific embodiments, and are not intended to be limiting. As used herein, unless otherwise clearly indicated in the context, the singular forms "one", "one (kind / person)" and "said (the)" are also intended to include plural forms. In addition, when the terms "include", "comprise" and / or its variations are used in this specification, it is explained that there are stated features, integral bodies, steps, operations, elements, components and / or their groups, but it is not excluded that there are or add one or more other features, integral bodies, steps, operations, elements, components and / or their groups. It should also be noted that, as used herein, the terms "substantially", "approximately" and other similar terms are used as approximate terms, and are not used as degree terms, so that they are used to explain the inherent deviations of the measured values, calculated values ​​and / or provided values ​​that will be recognized by those of ordinary skill in the art.

[0062] Various exemplary embodiments are described herein with reference to cross-sectional views and / or exploded views as schematic diagrams of ideal exemplary embodiments and / or intermediate structures. As such, variations in the shapes of the illustrations, such as those caused by manufacturing techniques and / or tolerances, are anticipated. Therefore, the exemplary embodiments disclosed herein should not necessarily be interpreted as being limited to the shapes of the specifically illustrated regions, but will include shape deviations, such as those caused by manufacturing. In this manner, the regions illustrated in the accompanying drawings may be schematic in nature, and the shapes of these regions may not reflect the actual shapes of the regions of the device, and as such, are not necessarily intended to be limiting.

[0063] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art to which this disclosure is a part. Terms (such as those defined in common dictionaries) should be interpreted as having a meaning consistent with their meaning in the context of the relevant art and should not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

[0064] Figure 1 is a perspective view showing a display device DD according to an exemplary embodiment. Figure 1 , the display device DD can display the image IM through the display surface DD-IS. The display surface DD-IS is substantially parallel to the surface defining the first direction axis DR1 and the second direction axis DR2. The normal direction of the display surface DD-IS (eg, the thickness direction of the display device DD) is represented by the third direction axis DR3.

[0065] As used herein, the front surface (or top surface) and the rear surface (or bottom surface) of each member or unit described below may be distinguished by the third directional axis DR3. However, the first directional axis DR1 to the third directional axis DR3 may be relative concepts and may be changed in some exemplary embodiments. Hereinafter, the first direction to the third direction represented by the first directional axis DR1 to the third directional axis DR3 are represented by the same reference numerals.

[0066] Figure 1 A display device DD according to an exemplary embodiment is shown as having a flat display surface, however, the inventive concept is not limited thereto. For example, the display device DD may include a curved display surface or a three-dimensional display surface. The three-dimensional display surface may include a plurality of display areas indicating different directions, and may include, for example, a polygonal columnar display surface.

[0067] The display device DD according to the exemplary embodiment may be a rigid display device. However, the inventive concept is not limited thereto and may be, for example, a flexible display device DD. The display device DD may be applied to Figure 1 In some exemplary embodiments, the electronic module, camera module, power module, etc. mounted on the main board may be arranged in a bracket / housing, etc. together with the display device DD to provide a cellular phone. However, the inventive concept is not limited thereto, and the display device DD according to the exemplary embodiment may be applied to large electronic devices such as televisions, monitors, etc. or small or medium-sized electronic devices such as tablets, car navigation systems, game consoles, smart watches, etc.

[0068] The display surface DD-IS includes an image area DD-DA in which the image IM is displayed and a frame area DD-NDA adjacent to the image area DD-DA. No image is displayed in the frame area DD-NDA. Figure 1 An icon image is shown as an example of the image IM.

[0069] like Figure 1 As shown in FIG. 1 , the image area DD-DA may have a substantially rectangular shape. The frame area DD-NDA may surround the image area DD-DA. However, the inventive concept is not limited thereto, and the shape of the image area DD-DA and the shape of the frame area DD-NDA may be designed differently.

[0070] FIG. 2A to FIG. 2D is a cross-sectional view of a display device DD according to an exemplary embodiment. FIG. 2A to FIG. 2D A cross section defined by the second direction axis DR2 and the third direction axis DR3 is shown, and the cross section of the display device DD is partially shown to clarify a stacked structure of functional panels and / or functional units included in the display device DD.

[0071] The display device DD according to the exemplary embodiment may include a display panel, an input detection sensor, an anti-reflection unit, and a window. At least some of the display panel, the input detection sensor, the anti-reflection unit, and the window may be formed by a continuous process or may be combined with each other using an adhesive member. FIG. 2A to FIG. 2D An optically clear adhesive OCA is exemplarily shown as an adhesive member. The adhesive member described below may include a typical adhesive or a removable adhesive. In an exemplary embodiment, the anti-reflection unit and the window may be replaced by other elements or may be omitted.

[0072] about FIG. 2A to FIG. 2D , any one of the input detection sensor, the anti-reflection unit and the window that is formed with another element through a continuous process is called a "layer". Any one of the input detection sensor, the anti-reflection unit and the window that is bonded to another element through an adhesive member is called a "panel". The panel includes a substrate layer that provides a substrate surface, for example, a synthetic resin film, a composite material film, a glass substrate, etc., but the "layer" may not be provided with a substrate layer. Specifically, the unit called a "layer" is arranged on a substrate surface provided by another unit.

[0073] The input detection sensor, the anti-reflection unit, and the window may be referred to as an input sensing panel ISP, an anti-reflection panel RPP, and a window panel WP, or an input sensing layer ISL, an anti-reflection layer RPL, and a window layer WL, respectively.

[0074] Reference Figure 2A, the display device DD may include a display panel DP, an input sensing layer ISL, an anti-reflection panel RPP, and a window panel WP. The input sensing layer ISL may be directly disposed on the display panel DP. As used herein, an element A "directly disposed" on another element B may mean that no additional adhesive layer / adhesive member is disposed between element A and element B. For example, element A may be formed on a substrate surface provided by element B through a continuous process after element B is formed.

[0075] The display panel DP and the input sensing layer ISL directly disposed on the display panel DP may be defined as a display module DM. An optically clear adhesive OCA is disposed between the display module DM and the anti-reflection panel RPP and between the anti-reflection panel RPP and the window panel WP.

[0076] The display panel DP may generate an image, and the input sensing layer ISL may obtain coordinate information about an external input (e.g., an input event). The display module DM according to an exemplary embodiment may further include a protective member disposed under the display panel DP. For example, the protective member and the display panel DP may be combined by an adhesive member. FIG. 2B to FIG. 2D The display device DD described in the specification may further include a protective member.

[0077] The display panel DP according to the exemplary embodiment may be an emissive display panel, but the inventive concept is not limited thereto. For example, the display panel DP may be an organic light-emitting display panel or a quantum dot light-emitting display panel. The emission layer of the organic light-emitting display panel may include an organic light-emitting material. The emission layer of the quantum dot light-emitting display panel may include quantum dots, quantum rods, etc. Hereinafter, the display panel DP will be described with reference to the organic light-emitting display panel.

[0078] The anti-reflection panel RPP reduces the reflectivity of external light incident on the window panel WP. The anti-reflection panel RPP according to an exemplary embodiment may include a phase retarder and a polarizer. The phase retarder may be a film type or a liquid crystal coating type, and may include a λ / 2 phase retarder and / or a λ / 4 phase retarder. The polarizer may be a film type or a liquid crystal coating type. The film type may include a stretched synthetic resin film, and the liquid crystal coating type may include liquid crystals arranged in a predetermined form. The phase retarder and the polarizer may also include a protective film. The phase retarder and the polarizer or their protective films may be defined as a base layer of the anti-reflection panel RPP.

[0079] The anti-reflection panel RPP according to an exemplary embodiment may include a color filter. The color filter may have a predetermined arrangement. The arrangement of the color filter may be determined in consideration of the color of light emitted from the pixels included in the display panel DP. The anti-reflection panel RPP may further include a black matrix adjacent to the color filter.

[0080] The anti-reflection panel RPP according to an exemplary embodiment may include a destructive interference structure. For example, the destructive interference structure may include a first reflective layer and a second reflective layer arranged on different layers. The first reflected light and the second reflected light reflected from the first reflective layer and the second reflective layer may destructively interfere with each other, thereby reducing the reflectivity of the external light.

[0081] The window panel WP according to an exemplary embodiment includes a base layer WP-BS and a light shielding pattern WP-BZ. The base layer WP-BS may include a glass substrate and / or a synthetic resin film. The base layer WP-BS may be a single layer, or may include two or more films bonded by an adhesive member.

[0082] The light shielding pattern WP-BZ partially overlaps the base layer WP-BS. The light shielding pattern WP-BZ is disposed on the rear surface of the base layer WP-BS in the light shielding region WP-NT of the base layer WP-BS. The light shielding region WP-NT may substantially define a bezel region DD-NDA of the display device DD. The region in which the light shielding pattern WP-BZ is not disposed is defined as a transmissive region WP-T of the window panel WP.

[0083] The light shielding pattern WP-BZ may be formed as a colored organic film, for example, by using a coating method. The window panel WP may further include a functional coating layer disposed on the front surface of the base layer WP-BS. The functional coating layer may include an anti-fingerprint layer, an anti-reflection layer, a hard coating layer, etc. FIG. 2B to FIG. 2D In the figure, the window panel WP or the window layer WL is simply shown, and the base layer WP-BS and the light shielding pattern WP-BZ are not shown separately.

[0084] like Figure 2B and Figure 2C As shown in FIG. 1 , the display device DD may include a display panel DP, an anti-reflection panel RPP, an input sensing panel ISP, and a window panel WP. In an exemplary embodiment, a stacking order between the input sensing panel ISP and the anti-reflection panel RPP may be changed.

[0085] like Figure 2D As shown in FIG. 1 , the display device DD may include a display panel DP, an input sensing layer ISL, an anti-reflection layer RPL, and a window layer WL. The display device DD may not be provided with a bonding member, and the input sensing layer ISL, the anti-reflection layer RPL, and the window layer WL may be formed on a substrate surface provided to the display panel DP through a continuous process. In an exemplary embodiment, the stacking order between the input sensing layer ISL and the anti-reflection layer RPL may be changed.

[0086] Figure 3A and Figure 3B is a cross-sectional view showing a display panel DP according to an exemplary embodiment.

[0087] like Figure 3A As shown in FIG. 1 , the display panel DP includes a base layer BL and a circuit element layer DP-CL, a display element layer DP-OLED and an upper insulating layer TFL disposed on the base layer BL. Figure 1 The display area DP-DA and the non-display area DP-NDA corresponding to the image area DD-DA and the frame area DD-NDA shown in FIG. 1 may be defined in the display panel DP. As used herein, when an area is referred to as corresponding to another area, the areas may overlap each other but may have the same or different areas from each other.

[0088] The base layer BL may include at least one plastic film, a plastic substrate, a glass substrate, a metal substrate, an organic / inorganic composite material substrate, and the like.

[0089] The circuit element layer DP-CL may include at least one intermediate insulating layer and a circuit element. The intermediate insulating layer may include at least one intermediate inorganic film and at least one intermediate organic film. The circuit element may include a signal line, a pixel driving circuit, etc., which will be described in more detail below.

[0090] The display element layer DP-OLED may include one or more organic light emitting diodes. The display element layer DP-OLED may further include an organic film such as a pixel defining film.

[0091] The upper insulating layer TFL may include a plurality of thin films. A portion of the thin films may be provided to improve optical efficiency, and another portion of the thin films may be provided to protect the organic light emitting diode. The upper insulating layer TFL will be described in more detail.

[0092] like Figure 3B As shown in FIG. 1 , the display panel DP includes a base layer BL, a circuit element layer DP-CL arranged on the base layer BL, a display element layer DP-OLED, an encapsulation substrate ES, and a seal SM for bonding the base layer BL and the encapsulation substrate ES. The encapsulation substrate ES may be spaced apart from the display element layer DP-OLED, and a predetermined gap GP may be provided between the encapsulation substrate ES and the display element layer DP-OLED. The base layer BL and the encapsulation substrate ES may include a plastic substrate, a glass substrate, a metal substrate, an organic / inorganic composite material substrate, etc. The seal SM may include an organic bonding member, glass material, etc.

[0093] Figure 4 is a plan view showing a display panel DP according to an exemplary embodiment. Figure 5A is an enlarged cross-sectional view of a display panel DP according to an exemplary embodiment. Figure 5B is an enlarged cross-sectional view of an upper insulating layer TFL according to an exemplary embodiment. Figure 5A Shown is a reference Figure 3AThe display panel DP of the display panel DP.

[0094] like Figure 4 As shown in the figure, the display panel DP may include a driving circuit GDC, a plurality of signal lines SGL (hereinafter referred to as "signal lines"), a plurality of signal pads (also referred to as signal pads) DP-PD (hereinafter referred to as "signal pads") and a plurality of pixels PX (hereinafter referred to as "pixels").

[0095] The display area DP-DA may be defined as an area in which pixels PX are arranged. Each of the pixels PX includes an organic light emitting diode and a pixel driving circuit connected to the organic light emitting diode. The driving circuit GDC, the signal line SGL, the signal pad DP-PD, and the pixel driving circuit may be included in Figure 3A and Figure 3B The circuit element layer DP-CL is shown in FIG.

[0096] The drive circuit GDC may include a scan drive circuit. The scan drive circuit may generate a plurality of scan signals (hereinafter referred to as "scan signals") and sequentially output the scan signals to a plurality of scan lines GL (hereinafter referred to as "scan lines") to be described later. The scan drive circuit may also output another control signal to the drive circuit of the pixel PX.

[0097] The scan driving circuit may include a plurality of thin film transistors formed by the same process as that for the driving circuit of the pixel PX, for example, a low temperature polysilicon (LTPS) process or a low temperature polycrystalline oxide (LTPO) process.

[0098] The signal lines SGL include scan lines GL, data lines DL, power lines PL, and control signal lines CSL. The scan lines GL are connected to corresponding pixels PX, respectively, and the data lines DL are connected to corresponding pixels PX, respectively. The power lines PL are connected to the pixels PX. The control signal lines CSL can provide control signals to the scan driving circuit.

[0099] The signal line SGL overlaps the display area DP-DA and the non-display area DP-NDA. The signal line SGL may include a pad unit and a line unit. The line unit overlaps the display area DP-DA and the non-display area DP-NDA. The pad unit is connected to an end of the line unit. The pad unit is disposed in the non-display area DP-NDA and overlaps a corresponding signal pad among the signal pads DP-PD. A portion of the non-display area DP-NDA in which the signal pad DP-PD is disposed may be defined as a pad area DP-PA. The circuit board may be connected to the pad area DP-PA.

[0100] The line unit connected to the pixel PX may constitute a large portion of the signal line SGL. The line unit is connected to the transistors T1 and T2 of the pixel PX (see Figure 5A ). The line unit may have a single-layer / multi-layer structure and may have a single body or at least two parts. The at least two parts may be arranged on different layers and may be connected to each other via a contact hole penetrating an insulating layer provided between the at least two parts.

[0101] Figure 5A A cross-sectional view of a display panel DP corresponding to transistors T1 and T2 and a light emitting diode OLED is partially shown. The circuit element layer DP-CL disposed on the base layer BL may include at least one insulating layer and a circuit element. The circuit element may include a signal line, a pixel driving circuit, etc. The circuit element layer DP-CL may be formed by a process of forming an insulating layer, a semiconductor layer, and a conductive layer by coating, deposition, etc., and a process of patterning the insulating layer, the semiconductor layer, and the conductive layer by photolithography.

[0102] The circuit element layer DP-CL according to the illustrated exemplary embodiment may include a buffer layer BFL, first and second intermediate inorganic films 10 and 20 as inorganic films, and an intermediate organic film 30. The buffer layer BFL may include a plurality of stacked inorganic films. Figure 5A The arrangement of the first semiconductor pattern OSP1, the second semiconductor pattern OSP2, the first control electrode GE1, the second control electrode GE2, the first input electrode DE1, the first output electrode SE1, the second input electrode DE2, and the second output electrode SE2 that can form the switching transistor T1 and the driving transistor T2 is exemplarily shown. The first through holes CH1 to the fourth through holes CH4 are also exemplarily shown.

[0103] The display element layer DP-OLED may include an organic light emitting diode OLED. The display element layer DP-OLED includes a pixel defining layer PDL. For example, the pixel defining layer PDL may be an organic layer.

[0104] The first electrode AE ​​is disposed on the intermediate organic film 30. The first electrode AE ​​is connected to the second output electrode SE2 via a fifth through hole CH5 penetrating the intermediate organic film 30. An opening OP is defined in the pixel defining film PDL. The opening OP of the pixel defining film PDL exposes at least a portion of the first electrode AE. Hereinafter, the opening OP of the pixel defining film PDL may be referred to as a "light emitting opening" to distinguish the opening OP from other openings.

[0105] like Figure 5AAs shown in FIG. 1 , the display area DP-DA may include a light emitting area PXA and a non-light emitting area NPXA adjacent to the light emitting area PXA. The non-light emitting area NPXA may surround the light emitting area PXA. The light emitting area PXA may correspond to a partial area of ​​the first electrode AE ​​exposed by the light emitting opening OP.

[0106] The hole control layer HCL may be commonly disposed in the light emitting area PXA and the non-light emitting area NPXA. The hole control layer HCL may include a hole transport layer and may further include a hole injection layer. The emission layer EML is disposed on the hole control layer HCL. The emission layer EML may be disposed in an area corresponding to the light emitting opening OP. More specifically, the emission layer EML may be individually formed in each pixel. The emission layer EML may include an organic material and / or an inorganic material. The emission layer EML may generate light of a predetermined color.

[0107] The electron control layer ECL is disposed on the emission layer EML. The electron control layer ECL may include an electron transport layer and may further include an electron injection layer. The hole control layer HCL and the electron control layer ECL may be formed together in a plurality of pixels using an open mask. The second electrode CE is disposed on the electron control layer ECL. The second electrode CE may have a single body and may be collectively disposed in a plurality of pixels.

[0108] like Figure 5A and Figure 5B As shown in FIG. 1 , the upper insulating layer TFL is disposed on the second electrode CE. The upper insulating layer TFL may include a plurality of thin films. The upper insulating layer TFL according to an exemplary embodiment may include a cap layer CPL and a thin film encapsulation layer TFE. The thin film encapsulation layer TFE may include a first inorganic layer IOL1, an organic layer OL, and a second inorganic layer IOL2.

[0109] The cap layer CPL is disposed on and contacts the second electrode CE. The cap layer CPL may include an organic material. The first inorganic layer IOL1 is disposed on and contacts the cap layer CPL. The organic layer OL is disposed on and contacts the first inorganic layer IOL1. The second inorganic layer IOL2 is disposed on and contacts the organic layer OL.

[0110] The capping layer CPL protects the second electrode CE from a subsequent process (eg, a sputtering process) and improves light emitting efficiency of the organic light emitting diode OLED. The capping layer CPL may have a refractive index greater than that of the first inorganic layer IOL1.

[0111] The first inorganic layer IOL1 and the second inorganic layer IOL2 protect the display element layer DP-OLED from moisture / oxygen, and the organic layer OL protects the display element layer DP-OLED from foreign substances such as dust particles. The first inorganic layer IOL1 and the second inorganic layer IOL2 may be any one of a silicon nitride layer, a silicon oxynitride layer, and a silicon oxide layer. In an exemplary embodiment, the first inorganic layer IOL1 and the second inorganic layer IOL2 may further include a titanium oxide layer, an aluminum oxide layer, etc. The organic layer OL may include an acrylic organic layer, but is not limited thereto.

[0112] In an exemplary embodiment, an inorganic layer such as a LiF layer may be further disposed between the cap layer CPL and the first inorganic layer IOL1. The LiF layer may improve the light emitting efficiency of the light emitting element OLED.

[0113] Fig. 6A is a cross-sectional view illustrating an input detection sensor ISL according to an exemplary embodiment. Figure 6B is a plan view illustrating an input detection sensor ISL according to an exemplary embodiment. Figure 6C is along Figure 6B A cross-sectional view of the input detection sensor ISL taken along line II'. Fig.6D is along Figure 6B A cross-sectional view of the input detection sensor ISL taken along line II-II'. Fig. 6E is a cross-sectional view illustrating a signal line according to an embodiment of the inventive concept. Fig. 6F yes Figure 6B Hereinafter, a “layer” type input detection sensor ISL will be described according to an exemplary embodiment. Figure 6C and Fig.6D The display panel DP is schematically shown in FIG.

[0114] like Fig. 6A As shown in FIG. 1 , the input detection sensor ISL may include a first insulating layer IS-IL1, a first conductive layer IS-CL1, a second insulating layer IS-IL2, a second conductive layer IS-CL2, and a third insulating layer IS-IL3. The first insulating layer IS-IL1 may be directly disposed on the upper insulating layer TFL. In some exemplary embodiments, the first insulating layer IS-IL1 may be omitted.

[0115] Each of the first conductive layer IS-CL1 and the second conductive layer IS-CL2 may have a single layer structure, or may have a multilayer structure stacked along the third directional axis DR3. The conductive multilayer structure may include at least two of a transparent conductive layer and a metal layer. The conductive multilayer structure may include a metal layer containing different metals. The transparent conductive layer may include indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), indium tin zinc oxide (ITZO), PEDOT, metal nanowires, graphene, etc. The metal layer may include molybdenum, silver, titanium, aluminum, and alloys thereof. For example, each of the first conductive layer IS-CL1 and the second conductive layer IS-CL2 may have a three-layer metal layer structure, for example, a three-layer structure of titanium / aluminum / titanium.

[0116] Each of the first conductive layer IS-CL1 and the second conductive layer IS-CL2 includes a plurality of conductive patterns. Hereinafter, the first conductive layer IS-CL1 is described as including the first conductive pattern, and the second conductive layer IS-CL2 is described as including the second conductive pattern. Each of the first conductive pattern and the second conductive pattern may include a sensing electrode and a signal line connected to the sensing electrode.

[0117] Each of the first to third insulating layers IS-IL1 to IS-IL3 may include an inorganic material or an organic material. The first insulating layer IS-IL1 and the second insulating layer IS-IL2 according to an exemplary embodiment may be an inorganic film including an inorganic material. The inorganic film may include at least one of aluminum oxide, titanium oxide, silicon oxide, silicon oxynitride, zirconium oxide, and hafnium oxide. The third insulating layer IS-IL3 may include an organic film. The organic film may include 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.

[0118] like Figure 6B As shown in FIG. 1 , the input detection sensor ISL may include a display panel DP (see FIG. 1 ) and a display panel DP (see FIG. 1 ). Figure 4 ) display area DP-DA (see Figure 4 ) and non-display area DP-NDA (see Figure 4 ) corresponds to a sensing area IS-DA and a wiring area IS-NDA (or a signal line area IS-NDA). The sensing area IS-DA may be defined as a region in which the first electrode group EG1 and the second electrode group EG2 are arranged.

[0119] The input detection sensor ISL may include a first electrode group EG1, a second electrode group EG2, a first signal line group SG1 connected to the first electrode group EG1, and a second signal line group SG2 connected to the second electrode group EG2. A pad area IS-PA in which a signal pad is arranged is defined in a wiring area IS-NDA. A circuit board may be connected to the pad area IS-PA. In an exemplary embodiment, the pad area DP-PA (see Figure 4 ) and the pad area IS-PA of the input detection sensor ISL can be connected through a circuit board.

[0120] The pad area IS-PA may include a first pad area IS-PA1 and a second pad area IS-PA2. The first pad IS-PD1 and the second pad IS-PD2 are respectively arranged in the first pad area IS-PA1 and the second pad area IS-PA2. The first pad IS-PD1 and the second pad IS-PD2 may be end portions of signal lines of the first signal line group SG1 and the second signal line group SG2, respectively, or may be other electrodes connected to end portions of signal lines of the first signal line group SG1 and the second signal line group SG2, respectively.

[0121] The first electrode group EG1 includes first to i-th electrodes (wherein “i” is a natural number equal to or greater than 2). Figure 6B The first electrode group EG1 including the first to tenth electrodes IE1-1 to IE1-10 according to an exemplary embodiment is shown. The first to tenth electrodes IE1-1 to IE1-10 have a shape substantially extending in the second direction DR2. The first to tenth electrodes IE1-1 to IE1-10 are sequentially arranged in the first direction DR1 in a manner gradually away from the pad area IS-PA.

[0122] The second electrode group EG2 includes first to j-th electrodes (wherein “j” is a natural number equal to or greater than 2). Figure 6B A second electrode group EG2 including a first electrode IE2-1 to an eighth electrode IE2-8 according to an exemplary embodiment is shown, however, the inventive concept is not limited to a specific number of electrodes in the first electrode group EG1 and the second electrode group EG2. The first electrode IE2-1 to the eighth electrode IE2-8 have a shape that extends substantially in the first direction DR1. The first electrode IE2-1 to the eighth electrode IE2-8 are sequentially arranged in the second direction DR2. For example, the first electrode IE2-1 is described as being disposed at the leftmost portion.

[0123] The first signal line group SG1 includes first to i-th signal lines. Figure 6B1 shows a first signal line group SG1 including first to tenth signal lines SL1-1 to SL1-10 according to an exemplary embodiment. The first to tenth signal lines SL1-1 to SL1-10 are connected to one end portions of the first to tenth electrodes IE1-1 to IE1-10, respectively. Figure 6B As shown in FIG. 1 , the first to tenth signal lines SL1-1 to SL1-10 are respectively connected to right ends of the first to tenth electrodes IE1-1 to IE1-10. The first pads IS-PD1 connected to the first to tenth signal lines SL1-1 to SL1-10 may be aligned in the first pad area IS-PA1.

[0124] The second signal line group SG2 includes first to j-th signal lines. Figure 6B 1 shows a second signal line group SG2 including first to eighth signal lines SL2-1 to SL2-8 according to an exemplary embodiment. The first to eighth signal lines SL2-1 to SL2-8 are connected to one end portions of the first to eighth electrodes IE2-1 to IE2-8, respectively. Figure 6B As shown in FIG. 1 , the first to eighth signal lines SL2-1 to SL2-8 are respectively connected to lower ends of the first to eighth electrodes IE2-1 to IE2-8. The second pads IS-PD2 connected to the first to eighth signal lines SL2-1 to SL2-8 may be aligned in the second pad area IS-PA2.

[0125] The input detection sensor ISL may further include a third signal line group SG3 including first to j-th signal lines. Figure 6B A third signal line group SG3 including first to eighth signal lines SL3-1 to SL3-8 according to an exemplary embodiment is shown. The first to eighth signal lines SL3-1 to SL3-8 are respectively connected to upper ends of the first to eighth electrodes IE2-1 to IE2-8. The third pad IS-PD3 connected to the first to eighth signal lines SL3-1 to SL3-8 may be aligned on the left side of the second pad IS-PD2.

[0126] The corresponding signal lines in the second signal line group SG2 and the third signal line group SG3 can provide synchronous detection signals to both ends of one electrode. In this way, the sensing sensitivity can be improved by preventing the voltage drop of the detection signal. In an exemplary embodiment, at least one of the second signal line group SG2 and the third signal line group SG3 can be omitted.

[0127] The electrodes of the first electrode group EG1 may include a plurality of first sensor cells SP1 and a plurality of first connection units CP1. The first sensor cells SP1 are arranged along the second direction DR2. Each of the first connection units CP1 connects two adjacent first sensor cells among the first sensor cells SP1.

[0128] The electrodes of the second electrode group EG2 include a plurality of second sensor units SP2 and a plurality of second connection units CP2. The second sensor units SP2 are arranged along the first direction DR1. Each of the second connection units CP2 connects two adjacent second sensor units among the second sensor units SP2.

[0129] The electrodes of the first electrode group EG1 and the electrodes of the second electrode group EG2 are insulated from each other. Figure 6B It is shown that the intersection occurs at the first connection unit CP1 and the second connection unit CP2 according to the exemplary embodiment. Fig. 6A The first conductive layer IS-CL1 shown in FIG. 1 is patterned to form a portion of a plurality of first sensor units SP1, a plurality of first connection units CP1, a plurality of second sensor units SP2, and a plurality of second connection units CP2, and can make Fig. 6A The second conductive layer IS-CL2 shown in FIG. 1 is patterned to form other parts.

[0130] Reference Fig. 6A and Figure 6C According to an exemplary embodiment, a plurality of first connection units CP1 may be formed by the first conductive layer IS-CL1, and a plurality of first sensor units SP1, a plurality of second sensor units SP2, and a plurality of second connection units CP2 may be formed by the second conductive layer IS-CL2. The first sensor units SP1 and the first connection units CP1 may be connected through the first connection contact holes CNT-I penetrating the second insulating layer IS-IL2.

[0131] Figure 6B and Figure 6C A plurality of first connection units CP1 and a plurality of second connection units CP2 intersecting each other are shown, however, the inventive concept is not limited thereto. For example, each of the second connection units CP2 may be deformed into a shape of "<" and / or ">" to not overlap with the first connection unit CP1 and overlap with the first sensor unit SP1.

[0132] According to an exemplary embodiment, the signal lines of the first signal line group SG1 and the second signal line group SG2 may have a double-layer structure. The first layer of the double-layer structure may be formed by using Fig. 6A The first conductive layer IS-CL1 shown in FIG. 1 is patterned to form the second layer. Fig. 6A The second conductive layer IS-CL2 shown in FIG. 1 is formed by patterning.

[0133] Reference Fig.6DThe eighth to tenth signal lines SL1-8 to SL1-10 include a first layer SL-L1 and a second layer SL-L2. The first layer SL-L1 and the second layer SL-L2 are connected through a second connection contact hole CNT-S penetrating the second insulating layer IS-IL2.

[0134] like Fig. 6E As shown in FIG. 1 , the first layer SL-L1 may include a metal multilayer. The second layer SL-L2 may also include a metal multilayer. Fig. 6E The first layer SL-L1 having a three-layer structure including a first metal layer ML1, a second metal layer ML2, and a third metal layer ML3 according to an exemplary embodiment is exemplarily shown. The first metal layer ML1, the second metal layer ML2, and the third metal layer ML3 may be a first titanium layer ML1, an aluminum layer ML2, and a second titanium layer ML3. The second layer SL-L2 may have a stacked structure substantially the same as that of the first layer SL-L1. In some exemplary embodiments, at least one of the first layer SL-L1 and the second layer SL-L2 may include an additional conductive layer therein.

[0135] Reference FIG. 6C to FIG. 6E , the first layer SL-L1 and the first connection unit CP1 may be formed by the same process to have the same stacked structure, and the second layer SL-L2 and the second connection unit CP2 may be formed by the same process to have the same stacked structure.

[0136] Fig. 6F Shows Figure 6B According to an exemplary embodiment, the electrodes of the first electrode group EG1 and the electrodes of the second electrode group EG2 may have a substantially mesh shape. Fig. 6F A portion of the mesh type first electrode IE1-1 in which openings OP-MR, OP-MG and OP-MB corresponding to three types of light emitting areas PXA-R, PXA-G and PXA-B are defined and portions of the mesh type seventh and eighth electrodes IE2-7 and IE2-8 are shown.

[0137] According to an exemplary embodiment, the input detection sensor ISL may be a capacitive touch panel that senses external input based on mutual capacitance. Either one of the first electrode group EG1 and the second electrode group EG2 may receive a detection signal, and the other may output a capacitance change between the first electrode group EG1 and the second electrode group EG2 as an output signal.

[0138] In an exemplary embodiment, the electrodes of the second electrode group EG2 can sequentially receive the detection signal. The input sensing circuit can read the output signal from the first electrode group EG1. When an input event occurs at a specific location, the output signal may include different capacitance changes when the input event does not occur. For example, when an input event occurs at a specific location (or when the input device is input at a specific location), an additional capacitor can be connected in parallel to the capacitor defined by the electrodes of the first electrode group EG1 and the electrodes of the second electrode group EG2 at a specific location in an equivalent circuit.

[0139] The first signal lines SL1-1 to the tenth signal lines SL1-10 may have substantially the same resistance to reduce noise caused by the first signal line group SG1 during a process of reading an output signal from the first electrode group EG1 through the first signal line group SG1. As used herein, the term "substantially the same resistance" includes resistance deviations that occur due to process errors even if the signal lines are designed to have the same resistance. Even if the first signal lines SL1-1 to the tenth signal lines SL1-10 may not have the same resistance, at least a portion of the first signal lines SL1-1 to the tenth signal lines SL1-10 may have the features described below to reduce deviations therebetween.

[0140] Fig. 7A is an enlarged plan view of a portion of an input detection sensor ISL according to an exemplary embodiment. Figure 7B is shown along Fig. 7A 4 is a cross-sectional view of the display device DD taken along line III-III'. Figure 7C yes Fig. 7A An enlarged plan view of area BB. 7A to 7C as well as Figure 6B The entire plan view of the input detection sensor ISL is provided in the following description.

[0141] Figure 7B The relative positions of the transmission area WP-T, the display area DP-DA and the sensing area IS-DA are shown. Figure 7B The area shown in the figure is used to describe Fig. 7A FIG. 1 is a plan view of a portion of the input detection sensor ISL. Figure 7B In the embodiment, a distance between a boundary of the transmission area WP-T and a corresponding boundary of the sensing area IS-DA may be several hundred micrometers, for example, about 300 μm to about 500 μm.

[0142] like Fig. 7A and Figure 7BAs shown in FIG. 1 , some of the first to j-th signal lines in the second signal line group SG2 may include a first portion P10 (or a connecting portion), a second portion P20 (or an extending portion), and a third portion P30 (or an intermediate portion). In an exemplary embodiment, the second to eighth signal lines SL2-2 to SL2-8 may include a first portion P10, a second portion P20, and a third portion P30. The second to eighth signal lines SL2-2 to SL2-8 may include a greater number of second portions P20 and a greater number of third portions P30 in an increasing order of the second to eighth signal lines SL2-2 to SL2-8.

[0143] The first portion P10 is connected to the corresponding second pad IS-PD2 and extends in the first direction DR1. The second portion P20 extends in the second direction DR2. The signal line is bent at the third portion P30.

[0144] The eighth signal line SL2-8 as the j-th signal line is arranged to be farthest from the first electrode IE2-1 in the second electrode group EG2 in the second direction DR2. The eighth signal line SL2-8 may include "m" number of second portions P20 and "m-1" number of third portions P30. Here, "m" may be a natural number equal to or greater than 2 and equal to or less than "j". For example, the eighth signal line SL2-8 may include seven second portions P20 and six third portions P30. A portion of the seven second portions P20 of the eighth signal line SL2-8 may overlap with the light shielding region WP-NT. For example, two of the seven second portions P20 may overlap with the light shielding region WP-NT.

[0145] The "m" number of second portions P20 are disposed closer to the sensing area IS-DA as their order increases. The seventh second portion P20 may be connected to the eighth electrode IE2-8 in the second electrode group EG2.

[0146] In this manner, the width of the region in which the second to eighth signal lines SL2 - 2 to SL2 - 8 are arranged as measured in the first direction DR1 may gradually decrease toward the first signal line group SG1 in the second direction DR2 .

[0147] Reference Fig. 7A and Figure 7C , the signal lines of the second signal line group SG2 may have different line widths according to regions. Specifically, the region of the signal line closer to the corresponding electrode may have a line width smaller than the line width of other regions of the signal line. For example, among the seven second portions P20 of the eighth signal line SL2-8, several second portions P20 closer to the eighth electrode IE2-8 in the second electrode group EG2 may have a width smaller than the width of other second portions P20 closer to the first portion P10.

[0148] Fig. 7A The eighth signal line SL2-8 is shown as including seven third portions P30, however, in some exemplary embodiments, the first third portion P30 connected to the first portion P10 may be omitted. In this case, the second portion P20 may be directly connected to the first portion P10. In the illustrated exemplary embodiment, the third portion P30 extends substantially in a diagonal direction intersecting the first direction DR1 and the second direction DR2, however, in some exemplary embodiments, the third portion P30 may extend substantially in the first direction DR1.

[0149] like Fig. 7A and Figure 7B As shown in FIG. 1 , each of the first to n-th signal lines (wherein "n" is a natural number equal to or greater than 1 and less than i) among the first to i-th signal lines in the first signal line group SG1 may include a first portion P1, a second portion P2, and a third portion P3. For example, the number "n" according to an exemplary embodiment may be 8.

[0150] The first portions P1 of the first to eighth signal lines SL1-1 to SL1-8 extend substantially from the first pad area IS-PA1 in the first direction DR1. The first portions P1 are not necessarily required to extend linearly. The second portions P2 of the first to eighth signal lines SL1-1 to SL1-8 are connected to the first to eighth electrodes IE1-1 to IE1-8, respectively (see FIG. Figure 6B ). The second portion P2 extends substantially in the first direction DR1, but is not necessarily required to extend linearly. The second portion P2 may have a shape similar to that of the second signal line SL2-2 to the eighth signal line SL2-8 in the second signal line group SG2. The first signal line SL2-1 to the eighth signal line SL2-8 in the second signal line group SG2 have a length greater than that of the first signal line SL1-1 to the tenth signal line SL1-10 in the first signal line group SG1. Fig. 7A As shown in FIG. 1 , the first signal line SL2 - 1 in the second signal line group SG2 is shorter than the first to tenth signal lines SL1 - 10 in the first signal line group SG1 .

[0151] In an exemplary embodiment, the relatively longer second portion P2 may have a line width greater than that of the relatively shorter second portion P2. The line width of the second portion P2 of the first signal line SL1-1 may be smaller than that of the second portion P2 of the eighth signal line SL1-8. Figure 7C The second portions P2 of the two outermost first signal lines SL1 - 9 and SL1 - 10 are shown to be thicker than the other second portions P2 .

[0152] The third portion P3 of the first to eighth signal lines SL1-1 to SL1-8 is disposed between the first portion P1 and the second portion P2. The third portion P3 may have an open loop shape.

[0153] The third portion P3 may have a shape that is bent multiple times to increase the length in a narrow area. The third portion P3 may have the same line width to control the resistance value by length. A portion of the signal line (e.g., the eighth signal line SL2-8) in the second signal line group SG2 may be arranged between the third portion P3 and the sensing area IS-DA.

[0154] The first to eighth signal lines SL1-1 to SL1-8 include third portions P3 having different lengths. The lengths of the third portions P3 may decrease in increasing order of the first to eighth signal lines SL1-1 to SL1-8.

[0155] The resistance of the third portion P3 may decrease in increasing order of the first to eighth signal lines SL1-1 to SL1-8. Here, the resistance of the second portion P2 extending from the third portion P3 increases in increasing order of the first to eighth signal lines SL1-1 to SL1-8.

[0156] The third portions P3 are densely arranged in a narrow area to reduce the area of ​​the wiring area IS-NDA. The line width of the third portions P3 may be several microns, and the distance between the third portions P3 may be several microns. For example, in an exemplary embodiment, the line width of the third portions P3 and the distance between adjacent third portions P3 may both be about 3 μm to about 7 μm.

[0157] Since a plurality of wirings are highly densely arranged in a narrow area, the scattering phenomenon of incident light is increased on the third portion P3. Since the side surface of the metal layer has a high density in the area where the third portion P3 is arranged, the third portion P3 may also include Fig. 6E The metal three-layer structure shown in FIG.

[0158] Return to reference Fig. 6E The third metal layer ML3 may have a reflectivity lower than that of the second metal layer ML2 and substantially cover a portion of the second metal layer ML2 except for the inclined side surface of the second metal layer ML2. In this case, external light may be scattered on the inclined side surface of the second metal layer ML2.

[0159] According to an exemplary embodiment, at least a portion of the third portion P3 overlaps the light shielding pattern WP-BZ to prevent the third portion P3 from being viewed by a user due to scattered light. The light shielding pattern WP-BZ may block the scattered light from being emitted externally.

[0160] The third portion P3 may completely overlap the light blocking pattern WP-BZ, but is not limited thereto. In some exemplary embodiments, a portion of the third portion P3 may not overlap the light blocking pattern WP-BZ.

[0161] Reference Figure 7C , the third portion P3 may have a line width smaller than that of the first portion P1 and the second portion P2. As such, the third portion P3 may be densely arranged in the same region than the first portion P1 and the second portion P2.

[0162] Reference Fig. 7A and Figure 7C Each of the third portions P3 includes a base portion P100, an extension portion P200, and a middle portion P300. The base portion P100 extends from one end portion of the corresponding first portion P1 toward the first portion P10 of the second signal line group SG2 in the second direction DR2.

[0163] The third portion P3 may include different numbers of extension portions P200. The extension portions P200 are spaced apart from the base portion P100 substantially in the first direction DR1. The third portion P3 of the first signal line SL1-1 may include a first extension portion P200 to a k-th extension portion P200 (wherein "k" is a natural number equal to or greater than 2). "k" number of extension portions P200 may be arranged in the second direction DR2. The first extension portion P200 to the k-th extension portion P200 are spaced further apart from the base portion P100 as the order of the first extension portion P200 to the k-th extension portion P200 increases. For example, the "k" number according to an exemplary embodiment may be 5.

[0164] The third portion P3 may include different numbers of intermediate portions P300. The intermediate portions P300 may extend in a direction substantially diagonal to the extension portion P200 or substantially perpendicular to the extension portion P200. The third portion P3 of the first signal line SL1-1 may include a first intermediate portion P300 to a kth intermediate portion P300. The first intermediate portion P300 is disposed between one end of the base portion P100 and the first extension portion P200 of the third portion P3. The second intermediate portion P300 to the kth intermediate portion P300 connect the first extension portion P200 to the kth extension portion P200. The first intermediate portion P300 may have a length greater than that of the other intermediate portions P300.

[0165] The base portion P100 may correspond to the first to kth middle portions P300 to P300. A distance between the base portion P100 and the sensing area IS-DA may be substantially constant.

[0166] In the inner area defined by the base portion P100, the extension portion P200 and the middle portion P300 of the first signal line SL1-1, the third portion P3 of another signal line can be arranged. In this way, the width of the area in which the third portion P3 is arranged as measured in the first direction DR1 can be gradually reduced in the second direction DR2 toward the first portion P10 of the second signal line group SG2. Since the third portion P3 is arranged in the area in which the second signal line group SG2 is not arranged, the area of ​​the wiring area IS-NDA can be reduced. Since the third portion P3 extends basically in the second direction DR2, the third portion P3 can be spaced far from the sensing area IS-DA. In this way, the area of ​​the third portion P3 overlapping with the light shielding area WP-NT can be increased.

[0167] Fig. 8A is an enlarged plan view of a portion of an input detection sensor ISL according to an exemplary embodiment. Figure 8B yes Fig. 8A An enlarged plan view of area BB. Figure 8C 1 is an enlarged plan view of a portion of an input detection sensor ISL according to an exemplary embodiment. Figures 1 to 7C Elements and components that are substantially the same as those described above are described in detail to avoid redundancy.

[0168] like Fig. 8A and Figure 8B As shown in FIG. 1 , the middle portion P300 of the third portion P3 is arranged corresponding to the third portion P30 of the second signal line group SG2, and the extended portion P200 of the third portion P3 is arranged corresponding to the second portion P20 of the second signal line group SG2. The third portion P3 and the second signal line group SG2 are arranged so that the shape of the third portion P3 in a plan view interlocks with the shape of a portion of the signal line of the second signal line group SG2 in a plan view. Since the third portion P3 and the signal line of the second signal line group SG2 are arranged to interlock with each other, the area of ​​the wiring area IS-NDA can be reduced (see FIG. 1 ). Figure 6B ).

[0169] Since the third portion P3 and the signal lines of the second signal line group SG2 are arranged to interlock with each other, visual inspection can be facilitated. Figure 8B An enlarged view of a region corresponding to one middle portion P300 is shown. According to the illustrated exemplary embodiment, since the third portion P30 and the middle portion P300 are linearly formed in the region without being bent, visual inspection can be performed substantially simultaneously. Specifically, Fig. 8A and Figure 8B The third portion P30 and the middle portion P300 shown in FIG. 3 can provide an area sufficient for visual inspection. Figure 8BAn image of the corresponding area is captured, and noise is detected from the captured image. The noise can be determined as a defect of the signal line.

[0170] Figure 8B Shown is a reference Fig.6D The second connection contact hole CNT-S described. The second connection contact hole CNT-S is arranged in the end region of the second portion P20. The end region may be a region corresponding to about 0% to about 10% and about 90% to about 100% of the length of one second portion P20 in the second direction DR2. In an exemplary embodiment, the second connection contact hole CNT-S may be arranged in the third portion P30. The second connection contact hole CNT-S may be determined as noise during visual inspection. In this way, the second connection contact hole CNT-S may not be arranged in the central region of the second portion P20, and the central region of the second portion P20 may be used as a visual inspection region.

[0171] Reference Figure 8C , a portion of the third portion P3 may not overlap with the light shielding region WP-NT. In a plan view, the k-1th extension portion P200 and the kth extension portion P200 of the third portion P3 of the first signal line SL1-1 may not overlap with the light shielding region WP-NT. Figure 8C , k may be 5. For example, the first extension portion P200 and the second extension portion P200 of the third portion P3 of the first signal line SL1 - 1 may overlap the light blocking region WP-NT.

[0172] The portion of the third portion P3 that does not overlap the light shielding region WP-NT may have a line width greater than a line width of the portion of the third portion P3 that overlaps the light shielding region WP-NT. Fig. 6E The density of the side surface of the described metal layer is low, so the region on which the third portion P3 having a larger line width is disposed may have a relatively low scattering rate of external light.

[0173] Fig.9A is a perspective view of a display module DM according to an exemplary embodiment. Fig. 9B is a plan view illustrating an input detection sensor ISL according to an exemplary embodiment. Fig. 10A is a perspective view of a display module DM according to an exemplary embodiment. Fig. 10B is a plan view illustrating an input detection sensor ISL according to an exemplary embodiment. Fig.11A is a perspective view of a display module DM according to an exemplary embodiment. Fig. 11B 1 is a plan view showing an input detection sensor ISL according to an exemplary embodiment. Figures 1 to 8C Elements and configurations described herein that are substantially the same are described in detail to avoid redundancy. Fig. 9B , Fig. 10B and Fig. 11B It is a reference Figure 6B As shown. A light shielding pattern WP-BZ (see Figure 7B ) area is blocked.

[0174] FIG. 9A to FIG. 11B A 'layer' type input detection sensor ISL according to an exemplary embodiment is shown. However, the inventive concept is not limited thereto, and the display device may include a 'panel' type input detection sensor in some exemplary embodiments.

[0175] like Fig.9A As shown in FIG. 1 , a notch area NTA recessed inward in a plan view is defined in the display module DM. The notch area NTA may be defined in each of the display panel DP and the input detection sensor ISL, but the notch areas NTA thereof may be the same or different from each other.

[0176] Fig. 9B The positions and arrangements of the first electrode group EG1, the second electrode group EG2, the first signal line group SG1, and the second signal line group SG2 shown in FIG. Figure 6B The position and arrangement of the input detection sensor ISL shown in FIG.

[0177] like Fig. 9B As shown in FIG. 1 , the first signal line SL1-1 to the tenth signal line SL1-10 of the first signal line group SG1 are respectively connected to one end of the first electrode IE1-1 to the tenth electrode IE1-10 in the first electrode group EG1. The first signal line SL1-1 to the tenth signal line SL1-10 are respectively connected to one end of the first electrode IE1-1 to the tenth electrode IE1-10 where the notch area NTA is not formed (for example, Fig.9A One ends of the first to tenth electrodes IE1-1 to IE1-10 are aligned in a row in the first direction DR1.

[0178] Due to the formation of the notch area NTA, a portion of the first electrode IE1-1 to the tenth electrode IE1-10 has a length shorter than a length of another portion of the first electrode IE1-1 to the tenth electrode IE1-10. The first electrode to the p-th electrode (where "p" is a natural number greater than 1 and less than i) have a length shorter than the length of the p+1-th electrode to the i-th electrode.

[0179] The other end of the p+1 electrode to the i-th electrode (for example, the right end in the exemplary embodiment shown) is adjacent to the notch area NTA. The p+1 electrode to the i-th electrode may have substantially the same length, but are not limited thereto. The lengths of the p+1 electrode to the i-th electrode may be adjusted differently according to the shape of the notch area NTA. Fig. 9B For example, suppose "p" is 9.

[0180] like Fig. 9B As shown in FIG. 1 , the first to eighth signal lines SL2-1 to SL2-8 in the second signal line group SG2 are respectively connected to one end of the first to eighth electrodes IE2-1 to IE2-8 in the second electrode group EG2. In an exemplary embodiment, the one end corresponds to the lower end adjacent to the pad areas IS-PA1 and IS-PA2.

[0181] One end of the first electrode IE2-1 to the eighth electrode IE2-8 is aligned in a row in the second direction DR2. Due to the notch area NTA, a portion of the first electrode IE2-1 to the eighth electrode IE2-8 has a length shorter than the length of another portion of the first electrode IE2-1 to the eighth electrode IE2-8. The first electrode to the qth electrode have a length shorter than the length of the q+1th electrode to the jth electrode (where "q" is a natural number less than j). The other end of the first electrode to the qth electrode (for example, the upper end in the exemplary embodiment shown) is adjacent to the notch area NTA.

[0182] The q+1th electrode to the jth electrode may have substantially the same length, but the inventive concept is not limited thereto. For example, the lengths of the q+1th electrode to the jth electrode may be adjusted differently according to the shape of the notch area NTA. Fig. 9B For example, assume that "q" is 2.

[0183] In the illustrated exemplary embodiment, the first signal line SL1-1 to the tenth signal line SL1-10 in the first signal line group SG1 are arranged relative to each other. Figure 6B The first signal line SL1-1 to the tenth signal line SL1-10 shown in FIG. are symmetrical in the horizontal direction. The first signal line SL2-1 to the eighth signal line SL2-8 in the second signal line group SG2 are relative to Figure 6B The first to eighth signal lines SL2 - 1 to SL2 - 8 shown in FIG. 1 are laterally symmetrical.

[0184] The notch area NTA is shown to be provided at Fig. 9B , but the notch area NTA may be disposed on another corner area in some exemplary embodiments. For example, when the notch area NTA is disposed on the upper left side, the notch area NTA may be disposed on the upper right side. Figure 6B The first to tenth signal lines SL1 - 10 in the first signal line group SG1 are provided and arranged in substantially the same manner as the first to tenth signal lines SL1 - 10 shown in FIG.

[0185] like Fig. 10AAs shown in FIG. 1 , the notch area NTA may be defined in a central region in the second direction DR2 . However, the notch area NTA is not necessarily required to be disposed in a precise central region.

[0186] like Fig. 10B As shown in FIG. 1 , the shapes of the first electrode group EG1 and the second electrode group EG2 may be changed due to the notch area NTA. The positions and arrangements of the first signal line group SG1 and the second signal line group SG2 may be different from those of FIG. Figure 6B The position and arrangement of the input detection sensor ISL are basically the same.

[0187] like Fig. 10B As shown in FIG. 1 , the tenth electrode IE1-10 may be divided into two parts due to the notch area NTA. The two parts may be connected by a dummy signal line DSL. The fourth electrode IE2-4 to the sixth electrode IE2-6 in the second electrode group EG2 may have a length shorter than that of other electrodes.

[0188] The dummy signal line DSL may be disposed on a layer different from that of the third signal line group SG3. The dummy signal line DSL may be formed of one of the first layer SL-L1 and the second layer SL-L2, and the third signal line group SG3 may be formed of the remaining one.

[0189] like Fig.11A As shown in FIG. 1 , the hole area HA may be defined in the display module DM in a plan view. The hole area HA is defined by removing a portion of the display panel DP and the input detection sensor ISL. It is not necessary to require that the hole area HA of the display panel DP and the hole area HA of the input detection sensor ISL are equal. The hole area HA may be a transmission channel for an optical signal. In some exemplary embodiments, the hole area HA may be formed in plurality in the display module DM.

[0190] The hole area HA of the display panel DP may be aligned with the plurality of light emitting areas PXA-R, PXA-G, and PXA-B (see Fig. 6F The sensor units SP1 and SP2 may be removed from the hole area HA of the input detection sensor ISL.

[0191] like Fig. 11B As shown in FIG. 1 , the shapes of the first electrode group EG1 and the second electrode group EG2 may be changed due to the hole area HA. ​​The positions and arrangements of the first signal line group SG1 and the second signal line group SG2 may be different from those of FIG. Figure 6B The positions and arrangements of the first signal line group SG1 and the second signal line group SG2 of the input detection sensor ISL are substantially the same.

[0192] The hole area HA of the input detection sensor ISL may be disposed in the intersection area between the first electrode group EG1 and the second electrode group EG2. Here, the dummy signal line may be disposed around the hole area HA of the input detection sensor ISL. For example, the dummy signal line may bypass the hole area HA to connect the separated electrodes of the first electrode group EG1 and the second electrode group EG2.

[0193] According to an exemplary embodiment, the first signal line group connected to the first electrode group of the input detection sensor may have substantially the same resistance, thereby improving the sensing sensitivity.

[0194] Even if the third portion for controlling the resistance of the first signal line is densely arranged in a narrow area, since external light incident to the third portion can be blocked by the light shielding pattern, a light leakage phenomenon can be reduced in the third portion.

[0195] Since the bending region of the third portion of the first signal line group corresponds to the bending region of the second signal line group, reliability of visual inspection of the first signal line group and the second signal line group is improved.

[0196] Although specific exemplary embodiments and implementations have been described herein, other embodiments and modifications will be apparent from this description. Therefore, the inventive concept is not limited to such embodiments, but rather to the broader scope of the appended claims and various obvious modifications and equivalent arrangements as will be apparent to one of ordinary skill in the art.

Claims

1. A display device, comprising: A window comprising a light shielding pattern and a base layer, wherein the base layer comprises a light shielding region in which the light shielding pattern is disposed and a transmission region adjacent to the light shielding region; A display panel, disposed below the window; as well as an input detection sensor disposed between the window and the display panel, the input detection sensor having a wiring area corresponding to the light shielding area and a sensing area corresponding to the transmission area, Wherein, the input detection sensor comprises: a first electrode group, comprising first to i-th electrodes, the first to i-th electrodes being arranged in a first direction away from a pad area defined on one side of the light shielding area and extending in a second direction intersecting the first direction, wherein "i" is a natural number equal to or greater than 2; A second electrode group, comprising first to j-th electrodes intersecting with the electrodes of the first electrode group, wherein "j" is a natural number equal to or greater than 2; a first signal line group including first to i-th signal lines electrically connected to the first to i-th electrodes in the first electrode group; and a second signal line group including first to j-th signal lines electrically connected to the first to j-th electrodes in the second electrode group, Wherein, each of the first to nth signal lines in the first signal line group comprises: a first portion extending from the pad region in the first direction; a second portion connected to a corresponding electrode in the first electrode group; and a third portion, disposed between the pad area and the sensing area, having a shape bent multiple times, and connecting the first portion to the second portion, wherein "n" is a natural number less than i, Wherein, the third part of the first signal line in the first signal line group includes: a base portion extending from the first portion in the second direction; first to k-th extending portions, spaced apart from the base portion in the first direction, wherein "k" is a natural number equal to or greater than 2; and an intermediate portion, disposed between the base portion and the first extension portion and between the first extension portion to the kth extension portion, wherein "k" is a natural number equal to or greater than 2, and the first extension portion to the kth extension portion become farther from the base portion in a direction from the first extension portion to the kth extension portion.

2. The display device according to claim 1, wherein: The first signal line to the i-th signal line in the first signal line group have the same resistance.

3. The display device according to claim 1, wherein: The third portion of each of the first to n-th signal lines in the first signal line group overlaps the light shielding pattern in a plan view.

4. The display device according to claim 1, wherein: The first to j-th signal lines in the second signal line group are respectively connected to one end of the first to j-th electrodes in the second electrode group, and The one end portions of the first to j-th electrodes in the second electrode group are adjacent to the pad region.

5. The display device according to claim 4, wherein: The first to j-th signal lines in the second signal line group have lengths greater than those of the first to i-th signal lines in the first signal line group.

6. The display device according to claim 4, wherein: The j-th signal line in the second signal line group is arranged to be farthest from the first electrode in the second electrode group in the second direction; and The j-th signal line in the second signal line group includes first to m-th extending portions arranged in the second direction and first to m-1-th intermediate portions provided between the first to m-th extending portions, wherein "m" is a natural number equal to or greater than 2.

7. The display device according to claim 6, wherein: The mth extending portion is connected to the jth electrode in the second electrode group.

8. The display device according to claim 6, wherein: The first to m-th middle portions of the j-th signal line become closer to the sensing region in a direction from the first middle portion of the j-th signal line to the m-th middle portion of the j-th signal line.

9. The display device according to claim 8, wherein: The first middle portion of the j-th signal line in the second signal line group overlaps the light shielding pattern.

10. The display device according to claim 1, wherein: The j-th signal line in the second signal line group is connected to the j-th electrode in the second electrode group; The j-th signal line in the second signal line group includes first to m-th extension portions arranged in the second direction and an intermediate portion disposed between the first to m-th extension portions, wherein "m" is a natural number equal to or greater than 2; and The first to k-th extending portions of the first signal line in the first signal line group are arranged in a one-to-one correspondence with at least a portion of the first to m-th extending portions of the j-th signal line in the second signal line group.

11. The display device according to claim 1, wherein: In a plan view, the first extending portion of the third portion of the first signal line in the first signal line group overlaps the light shielding pattern, and the k-th extending portion of the third portion of the first signal line in the first signal line group does not overlap the light shielding pattern; and The kth extension portion has a line width greater than a line width of the first extension portion.

12. The display device according to claim 1, wherein: The j-th signal line in the second signal line group includes a first layer and a second layer, the first layer is disposed below an insulating layer, the second layer is disposed on the insulating layer and connected to the first layer via a contact hole penetrating the insulating layer; and The contact hole overlaps with the middle portion or an end region of the extending portion adjacent to the middle portion in a plan view.

13. The display device according to claim 1, wherein: The display panel includes a non-display area corresponding to the light shielding area and a display area corresponding to the transmission area; The display area includes a light-emitting area and a non-light-emitting area adjacent to the light-emitting area; and Each of the first to i-th electrodes has a mesh shape including an opening corresponding to the light emitting area.

14. The display device according to claim 1, wherein: The display panel comprises a circuit layer, a display element layer located on the circuit layer, and an upper insulating layer located on the display element layer; and The input detection sensor is disposed directly on the upper insulating layer.

15. The display device according to claim 1, wherein: Each of the first to i-th signal lines in the first signal line group includes a first titanium layer, an aluminum layer on the first titanium layer, and a second titanium layer on the aluminum layer.

16. The display device according to claim 1, wherein: The third portions of the first signal lines to the i-th signal line in the first signal line group have the same line width.

17. The display device according to claim 1, wherein: Each of the display panel and the input detection sensor includes a notch area that is recessed inwardly in a plan view; The first signal line to the i-th signal line in the first signal line group are respectively connected to one end of the first electrode to the i-th electrode in the first electrode group; The one end portions of the first electrode to the i-th electrode in the first electrode group are aligned in a row in the first direction; The length from the first electrode to the p-th electrode in the first electrode group in the second direction is greater than the length from the p+1-th electrode to the i-th electrode in the first electrode group in the second direction, wherein "p" is a natural number greater than 1 and less than i; and The other ends of the p+1th electrode to the i-th electrode in the first electrode group are adjacent to the notch area.

18. The display device according to claim 17, wherein: The first to j-th signal lines in the second signal line group are respectively connected to one end of the first to j-th electrodes in the second electrode group; The one end portions of the first electrode to the j-th electrode in the second electrode group are adjacent to the pad region and are aligned in a row in the second direction; The length of the first electrode to the qth electrode in the second electrode group in the first direction is shorter than the length of the q+1th electrode to the jth electrode in the second electrode group in the first direction, wherein "q" is a natural number greater than 1 and less than j; and The other ends of the first electrode to the qth electrode in the first electrode group are adjacent to the notch area.

19. The display device according to claim 1, wherein: Each of the display panel and the input detection sensor includes a hole area: The hole area of ​​the display panel and the hole area of ​​the input detection sensor are aligned in a plan view; and The hole area of ​​the input detection sensor is defined inside the sensing area.

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