Display device

Abstract

The disclosure relates to a display device including a plurality of touch electrodes disposed in a display area, a touch connection electrode connecting two adjacent touch electrodes spaced apart from each other among the plurality of touch electrodes, and a crack detection electrode surrounding a camera area and disposed on the same layer as the plurality of touch electrodes, the plurality of touch electrodes including a plurality of first touch electrodes extending in a first direction and a plurality of second touch electrodes extending in a second direction intersecting the first direction, wherein the crack detection electrode includes a first crack detection electrode surrounding the camera area and a second crack detection electrode disposed in the display area and extending in the second direction, and the second crack detection electrode has a sawtooth pattern.

Description

[0001] This application is a divisional application of the original invention patent application with application number 202211245497.4 (application date: October 12, 2022, invention title: display device). Technical Field

[0002] This disclosure relates to a light-emitting display device, and more specifically, to a display device that minimizes the external visibility of crack detection lines. Background Technology

[0003] With the development of the information society, the demand for display devices that display images is increasing, and various types of display devices such as liquid crystal displays or organic light-emitting diode displays are being used.

[0004] To provide users with a wider range of functions, the display device recognizes user touches on the display panel and can perform input processing based on the recognized touches. For example, multiple touch electrodes can be positioned within the display area of ​​the display panel. Furthermore, the display device can sense touches by sensing changes in capacitance generated by the user's touch on the touch electrodes.

[0005] The display area of ​​the display panel equipped with touch electrodes can have various shapes, and in some cases, an area containing modules such as camera sensors or proximity sensors can be located within the display area. Furthermore, the area containing sensors can be located in the display area in the form of holes.

[0006] As described above, when the hole where the sensor is located is in the display area, a portion of the touch electrode located in the outer area of ​​the hole, or the wiring used to connect the touch electrode, may pass through the area where the hole is located. Therefore, there may be many difficulties in placing the touch electrode or the wiring used to connect the touch electrode in the outer area of ​​the hole in the display area. Summary of the Invention

[0007] The objective of this disclosure is to provide a display device in which the external visibility of a crack detection electrode is improved.

[0008] Another objective of this disclosure is to provide a display device in which the external visibility of touch-connected electrodes is minimized.

[0009] The purpose of this disclosure is not limited to the above-mentioned purposes, and other purposes not mentioned above will be clearly understood by those skilled in the art from the following description.

[0010] To achieve the above objectives, according to one aspect of this disclosure, a display device includes: a substrate including a camera region, a display region, and a non-display region, wherein a camera is disposed in the camera region, the display region surrounds the camera region and includes a plurality of sub-pixels, and the non-display region is located at the periphery of the display region; a plurality of touch electrodes disposed in the display region; a touch connection electrode connecting two adjacent touch electrodes spaced apart from each other among the plurality of touch electrodes; and a crack detection electrode surrounding the camera region and disposed on the same layer as the plurality of touch electrodes, wherein the plurality of touch electrodes includes a plurality of first touch electrodes extending in a first direction and a plurality of second touch electrodes extending in a second direction intersecting the first direction, wherein the crack detection electrode includes a first crack detection electrode surrounding the camera region and a second crack detection electrode disposed in the display region and extending in the second direction, and the second crack detection electrode has a serrated pattern.

[0011] To achieve the above objectives, according to another aspect of this disclosure, a display device includes: a substrate comprising: a camera region, a display region, and a non-display region, wherein a camera is disposed in the camera region, the display region surrounds the camera region and includes a plurality of sub-pixels, and the non-display region is located at the periphery of the display region; an encapsulation unit covering the display region; a plurality of first touch electrodes and a plurality of second touch electrodes disposed on the encapsulation unit and intersecting in different directions; a touch connection electrode connecting two adjacent first touch electrodes among the plurality of first touch electrodes; and a crack detection electrode surrounding the camera region and disposed on the same layer as the plurality of first touch electrodes and the plurality of second touch electrodes, the crack detection electrode including a first crack detection electrode surrounding the camera region and a second crack detection electrode disposed in the display region and extending in a second direction, and the second crack detection electrode having a serrated pattern.

[0012] Further details of the exemplary embodiments are included in the detailed embodiments and the accompanying drawings.

[0013] According to this disclosure, the external visibility of a crack detection electrode can be improved by forming the edge of the crack detection electrode with a grid pattern in a manner corresponding to the touch electrode.

[0014] According to this disclosure, the touch connection electrodes are regularly arranged to minimize the external visibility of the crack detection electrode or the touch connection electrode.

[0015] The effects of this disclosure are not limited to the examples above, and many more effects are included in this specification.

[0016] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory, and are intended to provide further explanation of the claimed inventive concept. Attached Figure Description

[0017] The above and other aspects, features and other advantages of this disclosure will become clearer from the following detailed description taken in conjunction with the accompanying drawings, in which: Figure 1 This is a diagram illustrating a schematic configuration of a display device according to an exemplary embodiment of the present disclosure; Figure 2 This is a diagram illustrating a display device according to an exemplary embodiment of the present disclosure; Figure 3 This is an example diagram of a touch panel in a display device according to an exemplary embodiment of the present disclosure; Figure 4 It is along Figure 3 A cross-sectional view taken from line IV-IV'; Figure 5 yes Figure 2 A magnified view of region A; Figure 6 It is along Figure 5 A cross-sectional view taken from line VI-VI'; Figure 7 yes Figure 5 A magnified view of region B; Figure 8 It is along Figure 5 A cross-sectional view taken from line VIII-VIII'; Figure 9 It is along Figure 5 The cross-sectional view taken from line VIIII-VIIII'; and Figure 10 This is an enlarged view of a display device according to another exemplary embodiment of the present disclosure.

[0018] Throughout the accompanying drawings and detailed description, unless otherwise stated, the same reference numerals shall be understood to refer to the same elements, features, and structures. Detailed Implementation

[0019] The advantages and features of this disclosure, as well as methods for implementing it, will become clearer from the exemplary embodiments described below with reference to the accompanying drawings. However, this disclosure is not limited to the exemplary embodiments described below, but can be implemented in various different forms. The exemplary embodiments are provided merely to fully disclose this disclosure and to adequately provide those skilled in the art with the category to which this disclosure pertains, and this disclosure will be defined by the appended claims.

[0020] The shapes, dimensions, ratios, angles, quantities, etc., illustrated in the accompanying drawings to describe exemplary embodiments of this disclosure are merely examples, and this disclosure is not limited thereto. Throughout the specification, similar reference numerals generally denote similar elements. Furthermore, in the following description of this disclosure, detailed explanations of known related technologies may be omitted to avoid unnecessarily obscuring the subject matter of this disclosure. Unless a term is used with the term "only," the use of terms such as "comprising," "having," and "consisting of" herein is generally intended to allow for the addition of additional components. Unless explicitly stated otherwise, any reference to the singular may include the plural.

[0021] Even if not explicitly stated, components are interpreted as including the normal error range.

[0022] When using terms such as “above,” “over,” “below,” and “next to” to describe the positional relationship between two parts, one or more parts may be located between the two parts unless the terms are used with the terms “exactly” or “directly.”

[0023] When a component or layer is referred to as being "on" another component or layer, it can be directly on the other component or layer, or there can be an intermediate component or layer.

[0024] Although the terms "first," "second," etc., are used to describe various components, these components are not limited by these terms. These terms are only used to distinguish one component from others. Therefore, the first component mentioned below can be a second component in the technical concept of this disclosure.

[0025] Throughout the specification, the same reference numerals denote the same elements.

[0026] Since the dimensions and thicknesses of each component shown in the accompanying drawings are presented for ease of explanation, this disclosure is not necessarily limited to the dimensions and thicknesses of each illustrated component.

[0027] Features of the various embodiments of this disclosure may be partially or completely linked to or combined with each other, and may be technically interlocked and operated in different ways, and the embodiments may be performed independently of each other or in relation to each other.

[0028] In the following, various exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0029] Figure 1 This is a diagram illustrating a schematic configuration of a display device according to an exemplary embodiment of the present disclosure. Figure 2 This is a diagram illustrating a display device according to an exemplary embodiment of the present disclosure. Figure 1 This is a system diagram of the display device.

[0030] Reference Figure 1 The display device includes: a display panel DISP, wherein multiple data lines and multiple gating lines are provided and multiple sub-pixels are provided, defined by the multiple data lines and multiple gating lines; a data driving circuit DDC that drives the multiple data lines; a gating driving circuit GDC that drives the multiple gating lines; and a display controller DCTR that controls the operation of the data driving circuit DDC and the gating driving circuit GDC.

[0031] Each of the data drive circuit (DDC), gating drive circuit (GDC), and display controller (DCTR) can be implemented by one or more separate components. In some cases, two or more of the data drive circuit (DDC), gating drive circuit (GDC), and display controller (DCTR) can be implemented as a single component. For example, the data drive circuit (DDC) and display controller (DCTR) can be implemented as a single integrated chip (IC chip).

[0032] To provide touch sensing functionality, a display device according to an exemplary embodiment of the present disclosure may include a touch panel (TSP) and a touch sensing circuit (TSC). The touch panel (TSP) includes a plurality of touch electrodes. The touch sensing circuit (TSC) supplies touch drive signals to the touch panel (TSP) and detects touch sensing signals from the touch panel (TSP) to sense the presence of a user's touch or the touch position (touch coordinates) in the touch panel (TSP) based on the detected touch sensing signals.

[0033] For example, a touch sensing circuit (TSC) may include a touch driving circuit (TDC) and a touch controller (TCTR). The touch driving circuit (TDC) supplies touch driving signals to the touch panel (TSP) and detects touch sensing signals from the touch panel (TSP). The touch controller (TCTR) senses the presence of a user's touch and / or the touch position in the touch panel (TSP) based on the touch sensing signals detected by the touch driving circuit (TDC).

[0034] The touch drive circuit (TDC) may include a first circuit component that supplies touch drive signals to the touch panel (TSP) and a second circuit component that detects touch sensing signals from the touch panel (TSP).

[0035] The touch driver circuit (TDC) and the touch controller (TCTR) can be implemented as separate components, or in some cases, they can be combined into a single component.

[0036] Furthermore, each of the data drive circuit (DDC), gating drive circuit (GDC), and touch drive circuit (TDC) can be implemented by one or more integrated circuits. From the perspective of electrical connection with the display panel (DISP), the circuit can be implemented using chip-on-glass (COG), chip-on-film (COF), or tape-on-package (TCP) types, etc. Additionally, the gating drive circuit (GDC) can also be implemented using a gating-in-panel (GIP) type.

[0037] Furthermore, each of the circuit configurations DDC, GDC, and DCTR used to drive the display panel DISP, and the circuit configurations TDC and TCTR used for touch sensing, can be implemented by one or more separate components. In some cases, one or more of the circuit configurations DDC, GDC, and DCTR used for display driving, and one or more of the circuit configurations TDC and TCTR used for touch sensing, are functionally integrated to be implemented by one or more components.

[0038] For example, the data driver circuit (DDC) and the touch driver circuit (TDC) can be implemented by integrating them into one, two, or more integrated circuit chips. When the data driver circuit (DDC) and the touch driver circuit (TDC) are implemented by integrating them into two or more integrated circuit chips, each of the two or more integrated circuit chips can have both data driving and touch driving functions.

[0039] Furthermore, the display device according to the exemplary embodiments of this disclosure can have various types, such as an organic light-emitting display device or a liquid crystal display device. In the following description, for ease of description, a display device with an integrated touchscreen will be described as an organic light-emitting display device as an example. That is, although the display panel DISP can be of various types, such as an organic light-emitting display panel or a liquid crystal display panel, in the following description, for ease of description, an organic light-emitting display panel will be described as an example.

[0040] The touch panel (TSP) may include multiple touch electrodes and multiple touch routing lines. Touch driving signals are applied to the multiple touch electrodes or touch sensing signals are detected from the multiple touch electrodes. The multiple touch routing lines connect the multiple touch electrodes to the touch driving circuit (TDC).

[0041] The touch panel TSP can be located outside the display panel DISP. For example, the touch panel TSP and the display panel DISP can be manufactured separately for assembly. Such a touch panel TSP is referred to as an external type or an additional type, but is not limited to that terminology.

[0042] Touch panel TSPs can be embedded within display panel DISPs. For example, when manufacturing a display panel DISP, the touch sensor structure constituting the touch panel TSP, such as multiple touch electrodes and multiple touch routing lines, can be formed together with the electrodes and signal lines used to drive the display device. This type of touch panel TSP is referred to as an embedded type, but is not limited to this term. In the following text, for ease of description, it will be assumed that the touch panel TSP is of the embedded type, but touch panel TSPs are not limited to this.

[0043] Reference Figure 2 The display panel DISP includes: a camera area CA, in which no sub-pixels SP are provided, but a camera is provided; a display area AA, which surrounds the camera area CA and has multiple sub-pixels SP provided therein; and a non-display area NA, which is located on the periphery of the display area AA.

[0044] The display area AA is provided with multiple sub-pixels SP for image display, and various electrodes or signal lines for display driving can be set.

[0045] Furthermore, multiple touch electrodes for touch sensing and multiple touch routing lines electrically connected to them can be set in the display area AA. Therefore, the display area AA can also be referred to as a touch sensing area capable of sensing touch.

[0046] In the non-display area NA, no image is displayed, and wiring and circuit units can be formed. For example, in the non-display area NA, multiple pads can be set, and the pads can be connected to multiple sub-pixels SP in the display area AA, respectively.

[0047] Furthermore, in the non-display area NA of the display panel DISP, link lines extending from or electrically connected to the multiple touch route lines located in the display area AA, as well as pads electrically connected to the link lines, can be provided. The pads in the non-display area NA can be coupled to or electrically connected to the touch driver circuit TDC.

[0048] In the non-display area NA, a portion of the outermost touch electrode among the multiple touch electrodes disposed in the display area AA is extended, or one or more electrodes (touch electrodes) may be further disposed comprising the same or substantially the same material as the multiple touch electrodes disposed in the display area AA.

[0049] For example, all the multiple touch electrodes in the display panel DISP can be located in the display area AA, or some of the multiple touch electrodes in the display panel DISP (e.g., the outermost touch electrode) can be located in the non-display area NA. Alternatively, some of the multiple touch electrodes in the display panel DISP (e.g., the outermost touch electrode) can be located in both the display area AA and the non-display area NA.

[0050] Figure 3 This is an example diagram of a touch panel in a display device according to an exemplary embodiment of the present disclosure. Figure 3 For ease of description, among the various configurations of the display device 100, only the package unit ENCAP, touch electrode TE, routing line TL, and touch pad TP are illustrated.

[0051] The ENCAP packaging unit has multiple first touch electrode lines X-TEL and multiple second touch electrode lines Y-TEL. Each of the multiple first touch electrode lines X-TEL is positioned in a first direction X, and each of the multiple second touch electrode lines Y-TEL can be positioned in a second direction Y that intersects with the first direction X.

[0052] Each of the multiple first touch electrode lines X-TEL includes multiple first touch electrodes X-TE electrically connected, and each of the multiple second touch electrode lines Y-TEL includes multiple second touch electrodes Y-TE electrically connected.

[0053] Multiple first touch electrodes X-TE configured with multiple first touch electrode lines X-TEL can be driving touch electrodes, and multiple second touch electrodes Y-TE configured with multiple second touch electrode lines Y-TEL can be sensing touch electrodes, and vice versa.

[0054] The multiple touch routing lines TL may include at least one first touch routing line X-TL connected to each of the multiple first touch electrode lines X-TEL and at least one second touch routing line Y-TL connected to each of the multiple second touch electrode lines Y-TEL.

[0055] Reference Figure 3 Each of the multiple first touch electrode lines X-TEL may include multiple first touch electrodes X-TE arranged in the same row (or column) and at least one first touch connection electrode X-CL electrically connected to the multiple first touch electrodes. Each of the multiple second touch electrode lines Y-TEL may include multiple second touch electrodes Y-TE arranged in the same column (or row) and at least one second touch connection electrode Y-CL electrically connected to the multiple second touch electrodes.

[0056] exist Figure 3 In this design, the first touch connection electrode X-CL, which connects two adjacent first touch electrodes X-TE, is connected to the metal of the two adjacent first touch electrodes X-TE via a contact hole. Furthermore, the second touch connection electrode Y-CL, which connects two adjacent second touch electrodes Y-TE, is a metal integrated with the two adjacent second touch electrodes Y-TE, but is not limited thereto.

[0057] In the area where the first touch electrode line X-TEL and the second touch electrode line Y-TEL intersect (the touch electrode line intersection area), the first touch connection electrode X-CL and the second touch connection electrode Y-CL can intersect. When the first touch connection electrode X-CL and the second touch connection electrode Y-CL intersect in the touch electrode line intersection area, the first touch connection electrode X-CL and the second touch connection electrode Y-CL need to be located on different layers.

[0058] Each of the plurality of first touch electrode lines X-TEL is electrically connected to a corresponding first touch pad X-TP via one or more first touch routing lines X-TL. For example, the outermost first touch electrode X-TE among the plurality of first touch electrodes X-TE in a single first touch electrode line X-TEL is electrically connected to the corresponding first touch pad X-TP via a first touch routing line X-TL. Each of the plurality of second touch electrode lines Y-TEL is electrically connected to a corresponding second touch pad Y-TP via one or more second touch routing lines Y-TL. For example, the outermost second touch electrode Y-TE among the plurality of second touch electrodes Y-TE in a single second touch electrode line Y-TEL is electrically connected to the corresponding second touch pad Y-TP via a second touch routing line Y-TL.

[0059] Each of the multiple first touch routing lines X-TL electrically connected to the multiple first touch electrode lines X-TEL can be set on the ENCAP and extended to a portion therein where the ENCAP is not set, to electrically connect to the multiple first touch pads X-TP. Each of the multiple second touch routing lines Y-TL electrically connected to the multiple second touch electrode lines Y-TEL can be set on the ENCAP and extended to a portion therein where the ENCAP is not set, to electrically connect to the multiple second touch pads Y-TP. Here, the ENCAP can be located in the display area AA, and in some cases, can extend to the non-display area NA.

[0060] Figure 4 It is along Figure 3 A cross-sectional view taken from IV-IV'.

[0061] Reference Figure 4When the touch panel TSP is embedded in the display panel DISP and the display panel DISP is implemented as an organic light-emitting display panel, the touch panel TSP can be located on the encapsulation unit ENCAP in the display panel DISP. That is, multiple touch electrodes TE can be located on the encapsulation unit ENCAP in the display panel DISP.

[0062] The first transistor T1, which serves as the driving transistor in each sub-pixel SP of the display area AA, is disposed on the substrate SUB.

[0063] The first transistor T1 includes a first node electrode NE1 corresponding to the gate electrode, a second node electrode NE2 corresponding to the source electrode or drain electrode, a third node electrode NE3 corresponding to the drain electrode or source electrode, and a semiconductor layer SEMI.

[0064] The first node electrode NE1 and the semiconductor layer SEMI can overlap with the gate insulating layer GI located between them. The second node electrode NE2 is formed on the insulating layer INS in such a way that it contacts one side of the semiconductor layer SEMI, and the third node electrode NE3 is formed on the insulating layer INS in such a way that it contacts the other side of the semiconductor layer SEMI.

[0065] A light-emitting diode (ED) may include a first electrode E1 corresponding to an anode electrode (or a cathode electrode), a light-emitting layer EL formed on the first electrode E1, and a second electrode E2 formed on the light-emitting layer EL corresponding to a cathode electrode (or anode electrode).

[0066] The first electrode E1 is electrically connected to the second node electrode NE2 of the first transistor T1, which is exposed through a pixel contact hole passing through the planarization layer PLN.

[0067] A light-emitting layer EL is formed on a first electrode E1 in the light-emitting region provided by the dam BANK. The light-emitting layer EL can be formed by laminating a hole-related layer, a light-emitting layer, and an electron-related layer onto the first electrode E1 in either the following order or the reverse order. A second electrode E2 is positioned opposite the first electrode E1, and the light-emitting layer EL is disposed therebetween.

[0068] The ENCAP enclosure prevents external moisture or oxygen from penetrating into the light-emitting diode (ED), which is susceptible to the effects of external moisture or oxygen.

[0069] This type of encapsulation unit ENCAP can be formed into a layer, or as... Figure 4 As illustrated, it can be formed by multiple layers PAS1, PCL and PAS2.

[0070] For example, when the encapsulation unit ENCAP includes multiple layers PAS1, PCL, and PAS2, the encapsulation unit ENCAP may include one or more inorganic encapsulation layers PAS1 and PAS2 and one or more organic encapsulation layers PCL. As a specific example, the encapsulation unit ENCAP may have a structure in which the first inorganic encapsulation layer PAS1, the organic encapsulation layer PCL, and the second inorganic encapsulation layer PAS2 are sequentially laminated.

[0071] Here, the organic encapsulation layer PCL may also include at least one organic encapsulation layer or at least one inorganic encapsulation layer.

[0072] A first inorganic encapsulation layer PAS1 is formed on a substrate SUB on which a second electrode E2 corresponding to the cathode electrode is formed, in closest proximity to the light-emitting diode ED. The first inorganic encapsulation layer PAS1 includes, but is not limited to, an inorganic insulating material that allows for low-temperature deposition (e.g., silicon nitride SiNx, silicon oxide SiOx, silicon oxynitride SiON, or aluminum oxide Al2O3). Because the first inorganic encapsulation layer PAS1 is deposited in a low-temperature atmosphere, it can suppress damage to the light-emitting layer EL, which includes organic materials susceptible to the high-temperature atmosphere during the deposition process.

[0073] The organic encapsulation layer PCL can be formed to have a smaller area than the first inorganic encapsulation layer PAS1, and in this case, the organic encapsulation layer PCL can be formed to expose both ends of the first inorganic encapsulation layer PAS1. The organic encapsulation layer PCL can serve as a buffer, relieving interlayer stress caused by bending of the display device with an integrated touchscreen as an organic light-emitting display device, and also enhancing planarization performance. The organic encapsulation layer PCL can comprise organic insulating materials such as acrylic resin, epoxy resin, polyimide, polyethylene, or silicon carbide (SiOC).

[0074] The organic encapsulation layer (PCL) can be formed by inkjet printing. When the organic encapsulation layer (PCL) is formed by inkjet printing, at least one dam (DAM) can be formed in the boundary region between the non-display region (NA) and the display region (AA), or in a portion of the non-display region (NA).

[0075] For example, such as Figure 4 As shown, a main dam section DAM1 and an auxiliary dam section DAM2 adjacent to the pad area can be set between the pad area, which is located in the non-display area and has multiple first touch pads X-TP and multiple second touch pads Y-TP, and the display area AA.

[0076] One or more dams can inhibit the flow of liquid-type organic encapsulation layer PCL into the non-display area NA to penetrate the pad area until the liquid-type organic encapsulation layer PCL falls into the display area AA and then hardens.

[0077] The main dam section DAM1 and / or the auxiliary dam section DAM2 can be formed from a single-layer or multi-layer structure. For example, the main dam section DAM1 and / or the auxiliary dam section DAM2 can be formed simultaneously using the same or substantially the same material as at least one of the dam section BANK and spacers (not shown). In this case, the dam structure can be formed without the need for a mask-addition process and the increased cost.

[0078] Furthermore, the main dam section DAM1 and / or the auxiliary dam section DAM2 can be formed by a structure in which the first inorganic encapsulation layer PAS1 and / or the second inorganic encapsulation layer PAS2 are laminated on the dam section BANK.

[0079] In addition, such as Figure 4 As shown, the organic encapsulation layer PCL, which includes organic materials, can be located only on the inner surface of the main dam section DAM1.

[0080] Conversely, an organic encapsulation layer (PCL) comprising organic materials may also be located above at least a portion of the main dam section (DAM1) and the auxiliary dam section (DAM2). For example, the organic encapsulation layer (PCL) may be located above the main dam section (DAM1).

[0081] The second inorganic encapsulation layer PAS2 can be formed on a substrate SUB on which the organic encapsulation layer PCL is formed, so as to cover the upper and side surfaces of the organic encapsulation layer PCL and the first inorganic encapsulation layer PAS1. The second inorganic encapsulation layer PAS2 can minimize or block the penetration of external moisture or oxygen into the first inorganic encapsulation layer PAS1 and the organic encapsulation layer PCL. The second inorganic encapsulation layer PAS2 includes, but is not limited to, inorganic insulating materials such as silicon nitride SiNx, silicon oxide SiOx, silicon oxynitride SiON, or aluminum oxide Al2O3.

[0082] A touch buffer layer T-BUF can be disposed on the encapsulation unit ENCAP. The touch buffer layer T-BUF can be located between the touch sensor metal, which includes the first touch electrode X-TE, the second touch electrode Y-TE, the first touch connection electrode X-CL, and the second touch connection electrode Y-CL, and the second electrode E2 of the light-emitting diode ED.

[0083] The touch buffer layer T-BUF can be designed to maintain a predetermined minimum distance (e.g., 1 μm) between the touch sensor metal and the second electrode E2 of the light-emitting diode ED. Therefore, the touch buffer layer T-BUF can reduce or suppress the parasitic capacitance formed between the touch sensor metal and the second electrode E2 of the light-emitting diode ED, thereby suppressing the degradation of touch sensitivity caused by parasitic capacitance.

[0084] The touch sensor metal, including multiple touch electrodes X-TE and Y-TE and multiple touch connection electrodes X-CL and Y-CL, can be placed on the encapsulation unit ENCAP without providing a touch buffer layer T-BUF.

[0085] Furthermore, the touch buffer layer T-BUF can prevent chemical solutions (developers or etchants) from the manufacturing process of the touch sensor metal disposed on the touch buffer layer T-BUF, or moisture from the outside, from penetrating into the light-emitting layer EL, which includes organic materials. In doing so, the touch buffer layer T-BUF can prevent damage to the light-emitting layer EL, which is susceptible to chemical solutions or moisture.

[0086] The touch buffer layer T-BUF may include an organic insulating material formed at a temperature below a predetermined temperature (e.g., 100°C) to suppress damage to the light-emitting layer EL, which includes organic materials susceptible to high temperatures. This organic insulating material has a low dielectric constant of 1 to 3. For example, the touch buffer layer T-BUF may include, but is not limited to, acrylic, epoxy, or siloxane-based materials. The touch buffer layer T-BUF, including an organic insulating material and possessing planarization properties, can suppress damage to the encapsulation layers PAS1, PCL, and PAS2 constituting the encapsulation unit ENCAP caused by bending of the organic light-emitting display device. Furthermore, the touch buffer layer T-BUF can suppress cracks in the touch sensor metal formed on the touch buffer layer T-BUF.

[0087] According to the mutual capacitance-based touch sensor structure, the first touch electrode line X-TEL and the second touch electrode line Y-TEL are disposed on the touch buffer layer T-BUF, and the first touch electrode line X-TEL and the second touch electrode line Y-TEL can be configured to intersect each other.

[0088] The second touch electrode line Y-TEL may include multiple second touch electrodes Y-TE and multiple second touch connection electrodes Y-CL electrically connected to the multiple second touch electrodes Y-TE.

[0089] Refer to together Figure 3 and Figure 4Multiple second touch electrodes Y-TEs can be spaced apart from each other at regular intervals along the second direction Y. Each of the multiple second touch electrodes Y-TEs can be electrically connected to another second touch electrode Y-TE adjacent to it in the second direction Y via a second touch connection electrode Y-CL.

[0090] The second touch connection electrode Y-CL is disposed on the same plane as the second touch electrode Y-TE, so as to be electrically connected to the two adjacent second touch electrodes Y-TE in the second direction Y without separate contact holes, or integrated with the two adjacent second touch electrodes Y-TE in the second direction Y.

[0091] The second touch connection electrode Y-CL can be configured to overlap with the dam section BANK. Therefore, the degradation of the aperture ratio caused by the second touch connection electrode Y-CL can be suppressed.

[0092] The first touch electrode line X-TEL may include a plurality of first touch electrodes X-TE and a plurality of first touch connection electrodes X-CL electrically connected between the plurality of first touch electrodes X-TE.

[0093] Multiple first touch electrodes X-TEs may be spaced apart from each other regularly along a first direction X on a touch insulating layer ILD. Each of the multiple first touch electrodes X-TEs may be electrically connected to another first touch electrode X-TE adjacent to it in the first direction X via a first touch connection electrode X-CL.

[0094] Reference Figure 4 Multiple first touch electrodes X-TE and multiple first touch connection electrodes X-CL can be located on different layers, with a touch insulating layer ILD between them. The first touch connection electrodes X-CL are formed on the touch buffer layer T-BUF and exposed through touch contact holes through the touch insulating layer ILD to be electrically connected to two adjacent first touch electrodes X-TE in the first direction X.

[0095] The first touch connection electrode X-CL can be configured to overlap with the dam section BANK. Therefore, the degradation of the aperture ratio caused by the first touch connection electrode X-CL can be suppressed.

[0096] Furthermore, the second touch electrode line Y-TEL can be electrically connected to the touch driver circuit TDC via the second touch route line Y-TL and the second touch pad Y-TP. Similarly, the first touch electrode line X-TEL can be electrically connected to the touch driver circuit TDC via the first touch route line X-TL and the first touch pad X-TP.

[0097] The pad cover electrode can be further configured to cover the first touch pad X-TP and the second touch pad Y-TP.

[0098] The first touch pad X-TP can be formed separately from the first touch routing line X-TL, or it can be formed by extending the first touch routing line X-TL. The second touch pad Y-TP can be formed separately from the second touch routing line Y-TL, or it can be formed by extending the second touch routing line Y-TL.

[0099] When a first touch pad X-TP is formed by extending a first touch routing line X-TL and a second touch pad Y-TP is formed by extending a second touch routing line Y-TL, the first touch pad X-TP, the first touch routing line X-TL, the second touch pad Y-TP, and the second touch routing line Y-TL can have the same first conductive material. Here, for example, the first conductive material can be formed using a metal with high corrosion resistance, acid resistance, and good conductivity (e.g., aluminum (Al), titanium (Ti), copper (Cu), or molybdenum (Mo)) to have a single-layer or multi-layer structure, but is not limited thereto.

[0100] For example, the first touch pad X-TP, the first touch routing line X-TL, the second touch pad Y-TP, and the second touch routing line Y-TL, which include a first conductive material, can be formed by a three-layer structure such as titanium (Ti) / aluminum (Al) / titanium (Ti) or molybdenum (Mo) / aluminum (Al) / molybdenum (Mo), but are not limited thereto.

[0101] The pad cover electrodes covering the first touch pad X-TP and the second touch pad Y-TP can be configured with a second conductive material that is the same as or substantially the same as the first touch electrode X-TE and the second touch electrode Y-TE. Here, the second conductive material can include a transparent conductive material with strong corrosion resistance and acid resistance (e.g., indium tin oxide (ITO) or indium zinc oxide (IZO)). Such pad cover electrodes are formed to be exposed through the touch buffer layer T-BUF for bonding with the touch driving circuit TDC or with a circuit film on which the touch driving circuit TDC is mounted.

[0102] A touch buffer layer (T-BUF) is formed to cover the touch sensor metal to suppress corrosion of the touch sensor metal due to external moisture. For example, the touch buffer layer (T-BUF) may comprise an organic insulating material or be formed in the form of a circular polarizer, epoxy resin film, or acrylic film. This touch buffer layer (T-BUF) may not be present on the encapsulation unit (ENCAP). For example, the touch buffer layer (T-BUF) may be omitted depending on the structure of the display device.

[0103] The second touch routing line Y-TL can be electrically connected to the second touch electrode Y-TE through the touch routing line contact hole, or it can be integrally formed with the second touch electrode Y-TE.

[0104] This second touch route line Y-TL extends to the non-display area NA and passes through the upper and side surfaces of the ENCAP package unit and the upper and side surfaces of the DAM dam to electrically connect to the second touch pad Y-TP. Therefore, the second touch route line Y-TL can be electrically connected to the touch driver circuit TDC via the second touch pad Y-TP.

[0105] The second touch routing line Y-TL can send touch sensing signals from the second touch electrode Y-TE to the touch driver circuit TDC, or it can be supplied with touch driving signals from the touch driver circuit TDC to send touch driving signals to the second touch electrode Y-TE.

[0106] The first touch routing line X-TL can be electrically connected to the first touch electrode X-TE through the touch routing line contact hole, or it can be integrally formed with the first touch electrode X-TE.

[0107] The first touch route line X-TL extends to the non-display area NA and passes through the upper and side surfaces of the encapsulation unit ENCAP and the upper and side surfaces of the dam section DAM to electrically connect to the first touch pad X-TP. Therefore, the first touch route line X-TL can be electrically connected to the touch driver circuit TDC via the first touch pad X-TP.

[0108] The first touch routing line X-TL can be supplied with a touch driving signal from the touch driving circuit TDC to send the touch driving signal to the first touch electrode X-TE, or it can send a touch sensing signal from the first touch electrode X-TE to the touch driving circuit TDC.

[0109] The placement of the first touch routing line X-TL and the second touch routing line Y-TL can vary in various ways depending on the panel design specifications.

[0110] The touch protection layer PAC can be disposed on the first touch electrode X-TE and the second touch electrode Y-TE. The touch protection layer PAC extends before or after the dam section DAM so that it can also be disposed on the first touch routing line X-TL and the second touch routing line Y-TL.

[0111] Figure 5 yes Figure 2 A magnified view of region A. Figure 6 It is along Figure 5 The cross-sectional view taken from line VI-VI'. Figure 7 yes Figure 5 A magnified view of region B. Figure 8 It is along Figure 5 The cross-sectional view taken from line VIII-VIII'. Figure 9 It is along Figure 5The cross-sectional view taken from line VIIII-VIIII'. Figure 5 This is a schematic illustration of the touch electrode TE.

[0112] Reference Figure 5 The display area AA includes a camera area CA. The camera area CA may include an opening area CA1 extending through the substrate SUB and a boundary area CA2 surrounding the opening area CA1 (e.g., between the display area AA and the opening area CA1). The encapsulation unit ENCAP may cover the display area AA and the boundary area CA2, and a plurality of first touch electrodes X-TE extending in a first direction X and a plurality of second touch electrodes Y-TE extending in a second direction Y may be disposed on the encapsulation unit ENCAP.

[0113] Multiple first touch electrodes X-TEs include multiple touch blocks X-TBs. For example, multiple first touch electrodes X-TEs are aggregated to form a block unit. Each of the multiple touch blocks X-TBs can be configured to be spaced apart from each other on the same plane. In this case, the area between the multiple touch blocks X-TBs is the area where multiple first touch connection electrodes X-CLs are located and is referred to as the connection unit CLP.

[0114] Despite Figure 5 The example illustrates two first touch connection electrodes X-CL electrically connected to two different touch blocks X-TB that are adjacent to each other in the first direction X in each connection unit CLP, but the number of first touch connection electrodes X-CL is not limited to this.

[0115] Reference Figure 7 The first touch connection electrode X-CL is not disposed on the same plane as the multiple touch blocks X-TB, and is electrically connected to two adjacent first touch electrodes X-TE through contact holes, and has a touch insulating layer ILD between the first touch connection electrode X-CL and the two first touch electrodes X-TE. The first touch connection electrode X-CL can be disposed below the multiple touch electrodes TE, or it can be disposed above the multiple touch electrodes.

[0116] Reference Figure 5 Multiple second touch electrodes Y-TEs are disposed in the remaining area excluding the area where multiple touch blocks X-TBs are disposed and the camera area CA. Among the multiple second touch electrodes Y-TEs, the multiple second touch electrodes Y-TEs adjacent to the camera area CA can correspond to the circular shape of the camera area CA.

[0117] The second touch connection electrode Y-CL is disposed on the same plane as the second touch electrode Y-TE, so as to be electrically connected to the two adjacent second touch electrodes Y-TE in the second direction Y without separate contact holes, or integrated with the two adjacent second touch electrodes Y-TE in the second direction Y.

[0118] Refer to together Figure 5 and Figure 7 The second touch connection electrode Y-CL, extending in the second direction Y, can be disposed in the region overlapping with the first touch connection electrode X-CL, extending in the first direction X. For example, the first touch connection electrode X-CL and the second touch connection electrode Y-CL are not disposed on the same layer, but can be insulated from each other by utilizing the touch insulating layer ILD between them.

[0119] The crack detection electrode CDE can be disposed in the boundary region CA2 between the opening region CA1 and the touch block X-TB. The crack detection electrode CDE can be disposed on the same layer as the multiple touch electrodes TE. The crack detection electrode CDE is insulated from the multiple touch electrodes TE, and at least some of them can be disposed on the same layer as the multiple touch electrodes TE.

[0120] A crack detection electrode CDE is positioned between the periphery of the opening region CA1 and the area where a touch electrode TE is located, to detect cracks that may occur during the process of forming the opening region CA1.

[0121] The crack detection electrode CDE may include a first crack detection electrode CDE1 surrounding the camera region CA and a second crack detection electrode CDE2 disposed in the display region AA and extending in the second direction Y. The first crack detection electrode CDE1 and the second crack detection electrode CDE2 are disposed on the same plane and electrically connected to each other. Although not shown in the figure, the second crack detection electrode CDE2 is also connected to a third crack detection electrode to a pad disposed in the edge of the display panel DISP, which is opposite to the edge of the display panel DISP adjacent to the camera region CA. The third crack detection electrode may be disposed in the display region AA and the non-display region NA to surround the display region AA disposed inside the camera region CA.

[0122] When a crack is generated in the boundary region CA2, the first crack detection electrode CDE1 or the second crack detection electrode CDE2 is short-circuited to detect the crack in the boundary region CA2.

[0123] Multiple touch blocks TB can be divided into a first touch block X-TB1 adjacent to the camera area CA, a second touch block X-TB2 adjacent to the second crack detection electrode CDE2, and a third touch block X-TB3 which is the remaining touch block besides the first touch block X-TB1 and the second touch block X-TB2.

[0124] The first touch block X-TB1 is positioned adjacent to the camera area CA such that a portion of the first touch block X-TB1 corresponds to the circular shape of the camera area CA. For example, the first touch block X-TB1 may have the shape obtained when a portion of the third touch block X-TB3 is cut by the camera area CA.

[0125] The third touch block X-TB3 refers to a touch block with a different size than the first touch block X-TB1, and is configured not to be adjacent to the camera area CA and the second crack detection electrode CDE2. For example, multiple touch blocks TB located in the display area AA, which is located inside the display area AA adjacent to the camera area CA, can be the third touch block X-TB3.

[0126] The second touch block X-TB2 has a different size than the third touch block X-TB3. A second crack detection electrode CDE2 is disposed on the same plane as the second touch block X-TB2, positioned between two adjacent second touch blocks X-TB2 and intersecting with the first touch connection electrode X-CL. However, the second crack detection electrode CDE2 is not electrically connected to either the touch block TB or the touch connection electrode CL. That is, the second crack detection electrode CDE2 is positioned to intersect with at least one third touch block X-TB3, such that one third touch block X-TB3 can be replaced by two second touch blocks X-TB2, and the second crack detection electrode CDE2 is disposed between the second touch blocks X-TB2. The first touch connection electrode X-CL, electrically connected between the third touch blocks X-TB3, can be additionally disposed between the second touch blocks X-TB2 to electrically connect the second touch blocks X-TB2 disposed at both ends of the second crack detection electrode CDE2.

[0127] Reference Figure 7 and Figure 8 Multiple first touch electrodes X-TEs are formed in a grid pattern. For example, the first touch electrodes X-TEs may be electrode metal EMs patterned with a grid type to have two or more openings OA between two adjacent first touch electrodes X-TEs.

[0128] Each of the two or more openings OA in each touch electrode TE can correspond to the light-emitting area of ​​one or more sub-pixels SP. For example, multiple openings OA can serve as paths for light emitted from multiple sub-pixels SP disposed below them.

[0129] To form multiple touch electrodes TE, the electrode metal EM is formed into a grid type with a relatively wide surface, and then the electrode metal EM is cut to have a predetermined pattern to electrically separate the electrode metal EM. Therefore, multiple touch electrodes TE can be manufactured.

[0130] For example, multiple touch blocks TB can be formed by cutting the periphery of a pattern corresponding to the shape of the touch blocks, which are multiple first touch electrodes X-TE. Although in Figure 5 In the game, the touch block TB is represented as a quadrilateral shape, but various shapes such as rhombus, diamond, triangle and pentagon are possible.

[0131] Reference Figure 7 Multiple second touch electrodes Y-TEs are formed in a grid pattern. For example, each second touch electrode may be an electrode metal EM patterned with a grid type to have two or more openings OA between adjacent second touch electrodes Y-TEs. Furthermore, the multiple second touch electrodes Y-TEs are not connected to multiple touch blocks TB, which are multiple first touch electrodes X-TEs, such that the edges of the multiple second touch electrodes Y-TEs adjacent to the multiple touch blocks TB can be cut. Therefore, openings are also formed between the multiple second touch electrodes Y-TEs and the multiple first touch electrodes X-TEs.

[0132] Refer to together Figure 7 and Figure 9 The second crack detection electrode CDE2 has a serrated pattern. The second crack detection electrode CDE2 can be an electrode metal EM having two or more openings OA disposed between two adjacent second touch blocks X-TB2 and patterned as a grid type similar to the multiple touch electrodes TE. Here, the second crack detection electrode CDE2 is disposed on the same plane as the multiple touch blocks TB, such that the edges of the second crack detection electrode CDE2 can have a serrated pattern corresponding to the edges of the second touch blocks X-TB2.

[0133] The first touch connection electrode X-CL, which intersects with the second crack detection electrode CDE2, is configured to overlap with the electrode metal EM of the second crack detection electrode CDE2. For example, the first touch connection electrode X-CL is not positioned on the same plane as the second crack detection electrode CDE2 or multiple touch electrodes TE, such that it overlaps with the second crack detection electrode CDE2.

[0134] Typically, when a crack detection electrode intersecting with a touch electrode is formed with a pattern containing linearly shaped edges, unlike the adjacent touch electrode which has a grid pattern, there is a problem that the crack detection line is visible from the outside.

[0135] In a display device according to an exemplary embodiment of the present disclosure, the shapes of the touch electrode and the second crack detection electrode CDE2 are uniform, thereby minimizing the external visibility of the second crack detection electrode CDE2. Specifically, the second crack detection electrode CDE2 is formed by cutting along the edge of a serrated shape of a grid pattern formed by a plurality of touch electrodes TE, such that the edge of the second crack detection electrode CDE2 has a serrated shape, thereby minimizing the external visibility of the second crack detection electrode CDE2.

[0136] Figure 10 This is an enlarged view of a display device according to another exemplary embodiment of the present disclosure. Figure 10 This is a schematic diagram illustrating the touch electrode TE. Apart from the dimensions of the second touch block X-TB2' and the arrangement of the second crack detection electrode CDE2', Figure 10 The display device 1000 has a similar Figures 1 to 7 The display device 100 has a basically the same configuration, so redundant descriptions will be omitted.

[0137] Reference Figure 10 The second touch block X-TB2' has the same dimensions as the third touch block X-TB3. The second crack detection electrode CDE2' is disposed on the same plane as the second touch block X-TB2', positioned between two adjacent second touch blocks X-TB2', and intersecting with the first touch connection electrode X-CL. The second crack detection electrode CDE2' is not electrically connected to any touch block TB or touch connection electrode CL. That is, the second crack detection electrode CDE2' is not configured to intersect with at least one third touch block X-TB3, but can be disposed within a connection unit that is a region between adjacent third touch blocks X-TB3. For example, the second crack detection electrode CDE2' can be configured to overlap with the region where the first touch connection electrode X-CL is electrically connected to an adjacent third touch block X-TB3.

[0138] Therefore, in a display device 1000 according to another exemplary embodiment of the present disclosure, the shapes of the touch electrode TE and the second crack detection electrode CDE2' are uniform, so that the external visibility of the second crack detection electrode CDE2' can be minimized. Furthermore, the first touch connection electrode X-CL is arranged regularly, thereby minimizing the possibility that the first touch connection electrode X-CL is externally visible.

[0139] Exemplary embodiments of this disclosure can also be described as follows: According to one aspect of this disclosure, a display device includes: a substrate including a camera region, a display region, and a non-display region, wherein a camera is disposed in the camera region, the display region surrounds the camera region and includes a plurality of sub-pixels, and the non-display region is located at the periphery of the display region; a plurality of touch electrodes disposed in the display region; a touch connection electrode connecting two adjacent touch electrodes spaced apart from each other among the plurality of touch electrodes; and a crack detection electrode surrounding the camera region and disposed on the same layer as the plurality of touch electrodes, wherein the plurality of touch electrodes includes a plurality of first touch electrodes extending in a first direction and a plurality of second touch electrodes extending in a second direction intersecting the first direction, wherein the crack detection electrode includes a first crack detection electrode surrounding the camera region and a second crack detection electrode disposed in the display region and extending in the second direction, and the second crack detection electrode has a serrated pattern.

[0140] The crack detection electrode also includes a third crack detection electrode disposed in the display area and non-display area to surround the display area.

[0141] The camera area includes an opening area and a boundary area surrounding the opening area, and a first crack detection electrode or a second crack detection electrode is configured to be short-circuited to detect cracks in the boundary area.

[0142] The first touch electrode may include multiple touch blocks, and the multiple touch blocks have a first touch block adjacent to the camera area, a second touch block adjacent to the second crack detection electrode, and a third touch block in addition to the first touch block and the second touch block.

[0143] The third touch block is configured not to be adjacent to the camera area and the second crack detection electrode.

[0144] The second crack detection electrode is disposed on the same plane as the multiple touch blocks, such that the edge of the second crack detection electrode has a serrated pattern corresponding to the edge of the second touch block.

[0145] A portion of the first touch block corresponds to the circular shape of the camera area.

[0146] The second touch block can have the same size as the third touch block.

[0147] The second touch block can have a different size than the third touch block.

[0148] The second crack detection electrode can be placed in the connection unit between two adjacent touch blocks arranged among multiple touch blocks.

[0149] Multiple touch electrodes can have a grid pattern.

[0150] According to another aspect of this disclosure, a display device includes: a substrate including a camera region, a display region, and a non-display region, wherein a camera is disposed in the camera region, the display region surrounds the camera region and includes a plurality of sub-pixels, and the non-display region is located at the periphery of the display region; an encapsulation unit covering the display region; a plurality of first touch electrodes and a plurality of second touch electrodes disposed on the encapsulation unit to intersect in different directions; a touch connection electrode connecting two adjacent first touch electrodes among the plurality of first touch electrodes; and a crack detection electrode surrounding the camera region and disposed on the same layer as the plurality of first touch electrodes and the plurality of second touch electrodes, the crack detection electrode including a first crack detection electrode surrounding the camera region and a second crack detection electrode disposed in the display region and extending in a second direction, and the second crack detection electrode having a serrated pattern.

[0151] The crack detection electrode also includes a third crack detection electrode disposed in the display area and non-display area to surround the display area.

[0152] The camera area includes an opening area and a boundary area surrounding the opening area, and a first crack detection electrode or a second crack detection electrode is configured to be short-circuited to detect cracks in the boundary area.

[0153] The first touch electrode may include multiple touch blocks, and the multiple touch blocks have a first touch block adjacent to the camera area, a second touch block adjacent to the second crack detection electrode, and a third touch block in addition to the first touch block and the second touch block.

[0154] The third touch block is configured not to be adjacent to the camera area and the second crack detection electrode.

[0155] The second crack detection electrode is disposed on the same plane as the multiple touch blocks, such that the edge of the second crack detection electrode has a serrated pattern corresponding to the edge of the second touch block.

[0156] A portion of the first touch block corresponds to the circular shape of the camera area.

[0157] The second touch block can have the same size as the third touch block.

[0158] The second touch block can have a different size than the third touch block.

[0159] The second crack detection electrode can have a grid pattern and intersect with the touch connection electrode.

[0160] Although exemplary embodiments of the present disclosure have been described in detail with reference to the accompanying drawings, the present disclosure is not limited thereto and may be implemented in many different forms without departing from the technical concept of the present disclosure. Therefore, exemplary embodiments of the present disclosure are provided for illustrative purposes only and are not intended to limit the technical concept of the present disclosure. The scope of the technical concept of the present disclosure is not limited thereto. Therefore, it should be understood that the above exemplary embodiments are illustrative in all respects and do not limit the present disclosure. The scope of protection of the present disclosure should be interpreted based on the appended claims, and all technical concepts within their equivalents should be interpreted as falling within the scope of the present disclosure.

[0161] Cross-reference to related applications

[0162] This application claims priority to Korean Patent Application No. 10-2021-0193483, filed with the Korean Intellectual Property Office on December 30, 2021, the disclosure of which is incorporated herein by reference.

Claims

1. A display device, the display device comprising: A substrate, the substrate comprising: a sensor region having a sensor disposed therein; and a display region surrounding the sensor region and including a plurality of sub-pixels; Multiple touch blocks are disposed in the display area; Touch connection electrodes, the touch connection electrodes being configured to connect to touch blocks adjacent to each other in a first direction; and A crack detection electrode, comprising a first crack detection electrode surrounding the sensor region and a second crack detection electrode disposed in the display region and extending from the first crack detection electrode in a second direction intersecting the first direction, and... The second crack detection electrode overlaps with the touch connection electrode.

2. The display device according to claim 1, wherein, The second crack detection electrode is disposed between the touch blocks.

3. The display device according to claim 1, wherein, The second crack detection electrode overlaps with multiple touch connection electrodes.

4. The display device according to claim 3, wherein, The plurality of touch connection electrodes are configured to connect a pair of touch blocks that are adjacent to each other.

5. The display device according to claim 1, further comprising an insulating layer inserted between the second crack detection electrode and the touch connection electrode.

6. The display device according to claim 1, wherein, The second crack detection electrode is disposed on the same layer as the plurality of touch blocks.

7. The display device according to claim 1, wherein, The touch connection electrode and the plurality of touch blocks are disposed on different layers.

8. The display device according to claim 1, wherein, The sensor region includes an opening region and a boundary region surrounding the opening region, and The first crack detection electrode is disposed in the boundary region.

9. The display device of claim 8, further comprising an encapsulation unit formed in the display area and extending to the boundary area. in, The first crack detection electrode, the second crack detection electrode, and the plurality of touch blocks are disposed on the packaging unit.

10. The display device according to claim 1, wherein, The plurality of touch blocks include a first touch block and a second touch block, and The first touch block is configured to be adjacent to the sensor area but not adjacent to the second crack detection electrode, and the second touch block is configured to be adjacent to the second crack detection electrode.

11. The display device according to claim 10, wherein, The second touch block has a different size from the first touch block.

12. The display device according to claim 10, wherein, The plurality of touch blocks also includes a third touch block, which is configured not to be adjacent to either the sensor area or the second crack detection electrode.

13. The display device according to claim 12, wherein, The second touch block has the same size or a different size from the third touch block.

14. The display device according to claim 12, wherein, At least two of the first touch block, the second touch block, and the third touch block have different sizes.

15. The display device according to claim 12, wherein, The third touch block has a grid pattern.

16. The display device according to claim 1, wherein, The crack detection electrode is insulated from the plurality of touch blocks and the touch connection electrode.

17. The display device according to claim 1, wherein, The shape of the edge of the second crack detection electrode corresponds to the shape of the edge of the touch block adjacent to the second crack detection electrode.

18. The display device according to claim 1, wherein, The second crack detection electrode is connected to a pad disposed in the edge of the substrate in the second direction, the edge being opposite to the edge of the substrate adjacent to the sensor region.

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