Display panel and display device

Abstract

The application discloses a display panel and a display device. The display panel has a display area and a non-display area. The non-display area surrounds at least part of the display area. The non-display area includes a binding area and a lead area located on one side of the binding area close to the display area. The display panel includes a substrate, a first insulating layer, a plurality of array wires and a plurality of touch wires. The array wires are arranged on one side of the substrate. The array wires extend from the binding area to the lead area. The first insulating layer is arranged on the side of the array wires away from the substrate. The first insulating layer is formed with a plurality of overlapping holes. The overlapping holes are located in the lead area. The touch wires are arranged on one side of the substrate. The touch wires extend from the display area to the lead area. Each touch wire is electrically connected to each array wire through the overlapping hole. The binding area includes a touch signal area. At least part of the overlapping holes is located between the touch signal area and the display area. The application can reduce the frame width of the display panel.

Description

Technical Field

[0001] This application relates to the field of display technology, specifically to a display panel and display device. Background Technology

[0002] With the rapid development of display technology, display products with touch functionality have been widely used.

[0003] However, existing touch display products are not conducive to achieving narrow bezels. Summary of the Invention

[0004] This application provides a display panel and display device, which aim to reduce the bezel width of the display panel.

[0005] A first aspect of this application provides a display panel having a display area and a non-display area. The non-display area surrounds at least a portion of the display area and includes a bonding area and a lead area located on the side of the bonding area closer to the display area. The display panel includes a substrate, a first insulating layer, multiple array traces, and multiple touch traces. The array traces are disposed on one side of the substrate and extend from the bonding area to the lead area. The first insulating layer is disposed on the side of the array traces away from the substrate and has multiple overlapping holes located in the lead area. The touch traces are disposed on one side of the substrate and extend from the display area to the lead area. Each touch trace is electrically connected to each array trace through the overlapping holes. The bonding area includes a touch signal area, and at least a portion of the overlapping holes are located between the touch signal area and the display area.

[0006] According to an embodiment of the first aspect of this application, the binding area further includes a drive signal area and a power signal area that are spaced apart, with the touch signal area located between the drive signal area and the power signal area.

[0007] According to any of the foregoing embodiments of the first aspect of this application, the orthographic projection of the overlapping hole on the substrate is located within the orthographic projection of the touch trace on the substrate.

[0008] According to any of the foregoing embodiments of the first aspect of this application, a non-display area is disposed around the outer periphery of the display area, pointing from the center of the display area to the edge of the non-display area, and the width of the non-display area is 1.0 mm to 1.3 mm.

[0009] According to any of the foregoing embodiments of the first aspect of this application, a portion of the overlapping hole is located on the side of the power signal area away from the touch signal area.

[0010] According to any of the foregoing embodiments of the first aspect of this application, the distance between the plurality of overlapping holes and the display area is the same.

[0011] According to any of the foregoing embodiments of the first aspect of this application, the display panel further includes a light-emitting functional layer, an encapsulation layer, and a touch structure layer; the light-emitting functional layer is disposed on one side of the substrate, and the light-emitting functional layer includes a plurality of light-emitting devices located in the display area; the encapsulation layer is disposed on the side of the light-emitting functional layer opposite to the substrate; the touch structure layer is disposed on the side of the encapsulation layer opposite to the substrate, and the touch traces are electrically connected to the touch structure layer.

[0012] According to any of the foregoing embodiments of the first aspect of this application, the encapsulation layer includes a first inorganic layer, a first organic layer, and a second inorganic layer sequentially stacked along a path away from the substrate.

[0013] According to any of the foregoing embodiments of the first aspect of this application, the distance between the orthographic projection of the plurality of overlapping holes on the substrate and the orthographic projection of the encapsulation layer on the substrate is the same.

[0014] According to any of the foregoing embodiments of the first aspect of this application, the encapsulation layer has a first boundary in the orthographic projection onto the substrate, and the distance between the orthographic projection of the plurality of overlapping holes onto the substrate and the first boundary is the same.

[0015] According to any of the foregoing embodiments of the first aspect of this application, the orthographic projection of the plurality of overlapping holes on the substrate is located outside the orthographic projection of the encapsulation layer on the substrate.

[0016] According to any of the foregoing embodiments of the first aspect of this application, the touch structure layer includes a first touch electrode layer and a second touch electrode layer, and the plurality of touch traces include a first touch trace and a second touch trace. The first touch trace is electrically connected to the first touch electrode layer, and the second touch trace is electrically connected to the second touch electrode layer.

[0017] According to any of the foregoing embodiments of the first aspect of this application, the touch structure layer further includes a touch insulating layer, which is disposed between the first touch electrode layer and the second touch electrode layer.

[0018] According to any of the foregoing embodiments of the first aspect of this application, a touch insulating layer is disposed on at least a portion of the overlapping holes on the side opposite to the substrate.

[0019] According to any of the foregoing embodiments of the first aspect of this application, at least a portion of the overlapping holes are projected onto the substrate in the orthogonal projection of the touch insulating layer onto the substrate.

[0020] According to any of the foregoing embodiments of the first aspect of this application, the touch insulating layer includes organic materials and / or inorganic materials.

[0021] According to any of the foregoing embodiments of the first aspect of this application, the touch structure layer further includes a touch protection layer, which is disposed on the side of the first touch electrode layer and / or the second touch electrode layer away from the substrate, and the touch protection layer is disposed on at least a portion of the overlapping holes away from the substrate.

[0022] According to any of the foregoing embodiments of the first aspect of this application, at least a portion of the overlapping holes are projected onto the substrate in the orthogonal projection of the touch protection layer onto the substrate.

[0023] According to any of the foregoing embodiments of the first aspect of this application, the touch protection layer includes organic materials and / or inorganic materials.

[0024] According to any of the foregoing embodiments of the first aspect of this application, the touch signal area is provided with a plurality of spaced touch terminals; along the direction from the touch terminal to the adjacent touch terminal, the size of the overlapping hole is larger than the size of the touch terminal, and / or, the pitch of the overlapping hole is larger than the pitch of the touch terminal.

[0025] A second aspect of this application provides a display device that includes a display panel according to any of the embodiments of the first aspect described above.

[0026] According to an embodiment of this application, the display panel includes a substrate, a first insulating layer, multiple array traces, and multiple touch traces. At least some overlapping holes are located in a first region between the touch signal area and the display area. The overlapping holes in the first region are relatively close to the touch signal area, which can shorten the extension length of the array traces connected to these overlapping holes after bending along the first direction, as well as the total layout length of these overlapping holes. This reduces the space occupied by the array traces, thereby reducing the area of ​​the non-display area and thus reducing the bezel width of the display panel. This embodiment of the application can reduce the length of the array traces, thereby reducing the bezel width of the display panel. Attached Figure Description

[0027] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings, in which the same or similar reference numerals denote the same or similar features, and the drawings are not drawn to scale.

[0028] Figure 1 This is a top view of a display panel provided in an embodiment of this application; Figure 2 This is one of the enlarged top view structures of the non-display area of ​​a display panel provided in an embodiment of this application; Figure 3 This is a cross-sectional structural diagram of the overlap between touch traces and array traces in a display panel provided in an embodiment of this application; Figure 4 This is a second enlarged top view of the non-display area of ​​a display panel provided in an embodiment of this application; Figure 5 This is the third enlarged top view of the non-display area of ​​a display panel provided in an embodiment of this application; Figure 6This is a top view of the touch traces and touch electrodes in a display panel provided in an embodiment of this application; Figure 7 This is a cross-sectional structural diagram of the display area of ​​a display panel provided in an embodiment of this application.

[0029] Explanation of reference numerals in the attached figures: 100. Display area; 200. Non-display area; 210. Binding area; 2101. Touch signal area; 2102. Drive signal area; 2103. Power signal area; 220. Lead wire area; 1. Substrate; 11. Substrate; 12. Driving circuit layer; 2. Array wiring; 20. Touch terminals; 3. First insulating layer; 30. Overlap hole; 4. Touch control traces; 41. First touch control traces; 42. Second touch control traces; 5. Light-emitting functional layer; 51. Light-emitting device; 6. Encapsulation layer; 60. First boundary; 61. First inorganic layer; 62. First organic layer; 63. Second inorganic layer; 7. Touch structure layer; 71. First touch electrode layer; 72. Second touch electrode layer; 73. Touch insulating layer; 74. Touch protective layer. Detailed Implementation

[0030] The features and exemplary embodiments of various aspects of this application will now be described in detail. To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain this application and are not configured to limit this application. For those skilled in the art, this application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this application by illustrating examples of this application.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0032] It should be understood that when describing the structure of a component, when referring to a layer or region as being "above" or "on top of" another layer or region, it can mean that it is directly above the other layer or region, or that it contains other layers or regions between it and the other layer or region. Furthermore, if the component is flipped over, that layer or region will be located "below" or "under" the other layer or region.

[0033] The applicant discovered that when a touch structure is incorporated into a display device and embedded in the display panel, the touch electrodes of the touch structure are positioned on the light-emitting side of the light-emitting device layer of the display panel to achieve better touch performance. To prevent the touch signal lines from obstructing the light emission of the light-emitting device, the touch signal lines are routed to a non-display area surrounding the display area, and then connected to the array traces via interconnect holes, thereby electrically connecting to the bonding area of ​​the non-display area to facilitate subsequent bonding with the touch chip. However, the interconnect holes require a certain amount of layout space, and the array traces are relatively dense when extending from the interconnect holes to the bonding area, requiring a significant amount of layout space, which is detrimental to narrow bezel designs.

[0034] To address the aforementioned issues, this application provides a display panel and a display device. The following description, in conjunction with the accompanying drawings, will illustrate various embodiments of the display panel and display device.

[0035] This application provides a display panel, which may be an organic light-emitting diode (OLED) display panel.

[0036] Please refer to the following: Figures 1 to 3 The first aspect of this application provides a display panel having a display area 100 and a non-display area 200. The non-display area 200 surrounds at least a portion of the display area 100 and includes a bonding area 210 and a lead area 220 located on the side of the bonding area 210 closer to the display area 100. The display panel includes a substrate 1, a first insulating layer 3, a plurality of array traces 2, and a plurality of touch traces 4. The array traces 2 are disposed on one side of the substrate 1 and extend from the bonding area 210 to the lead area. 220; A first insulating layer 3 is disposed on the side of the array trace 2 away from the substrate 1, and the first insulating layer 3 forms a plurality of overlapping holes 30, which are located in the lead area 220; Touch trace 4 is disposed on one side of the substrate 1, and the touch trace 4 extends from the display area 100 to the lead area 220, and each touch trace 4 is electrically connected to each array trace 2 through the overlapping holes 30; wherein, the bonding area 210 includes a touch signal area 2101, and at least some of the overlapping holes 30 are located between the touch signal area 2101 and the display area 100.

[0037] The first insulating layer 3 is used to separate the conductive film layer disposed on the first insulating layer 3 and covered by the first insulating layer 3. In this application, the touch trace 4 and the array trace 2 are located in different film layers of the display panel. The touch trace 4 is electrically connected to the array trace 2 through the overlap hole 30 to realize the line switching, so that the touch signal can be transmitted from the display area 100, the touch trace 4, the array trace 2 to the touch signal area 2101.

[0038] At least some of the overlapping holes 30 are located between the touch signal area 2101 and the display area 100. This can be understood as only some of the overlapping holes 30 being located within the first area between the touch signal area 2101 and the display area 100, while other overlapping holes 30 are located outside the first area. Alternatively, all of the overlapping holes 30 may be located within the first area between the touch signal area 2101 and the display area 100. Figure 2 As shown, a portion of the overlapping hole 30 is positioned directly opposite the touch signal area 2101 in the second direction Y.

[0039] Optionally, in this embodiment, the first direction may refer to Figure 2 The X-axis direction is shown in the figure, and the second direction can be referenced. Figure 2 The Y-axis direction in the diagram.

[0040] The display panel provided in this application embodiment includes a substrate 1, a first insulating layer 3, multiple array traces 2, and multiple touch traces 4. At least a portion of the overlapping holes 30 are located in a first region between the touch signal area 2101 and the display area 100. The overlapping holes 30 located in the first region are relatively close to the touch signal area 2101, which can shorten the extension length of the array traces 2 connected to the overlapping holes 30 after bending along the first direction X, as well as the total layout length of the overlapping holes 30. This reduces the space occupied by the array traces 2, thereby reducing the area of ​​the non-display area 200 and thus reducing the bezel of the display panel. This application embodiment can reduce the length of the array traces 2, thereby reducing the bezel width of the display panel.

[0041] The display panel in this application embodiment can be an organic light-emitting diode (OLED) display panel or a micro-light-emitting diode (Micro-LED) display panel. For ease of explanation, this application embodiment will be described using an organic light-emitting diode display panel as an example.

[0042] Optionally, substrate 1 can be an array substrate, providing buffering, protection, or support. Substrate 1 may include a substrate 11, which can be a flexible substrate made of polyimide (PI); substrate 11 may also include a rigid substrate made of materials such as glass. For ease of explanation, this application uses a wearable product as an example. The substrate 1 of the wearable product can use a rigid substrate, whose bonding area 210 cannot be bent, thus requiring a reduction in the width of the bezel to increase the screen-to-body ratio (the flexible substrate 1 can achieve a narrow bezel by bending the bottom bezel). The display area 100 of the wearable product can be circular, with the non-display area 200 surrounding the display area 100. To achieve the narrow bezel requirement, the four sides of the circular product's bezel become increasingly close. By placing at least part of the overlapping holes 30 between the touch signal area 2101 and the display area 100, the space occupied by the array traces 2 can be reduced, achieving a narrow bezel design for the display panel. Optionally, the width of the non-display area 200 is 1.0mm to 1.3mm, pointing from the center of the display area 100 to the edge of the non-display area 200. For example, the width of the non-display area 200 in some locations can be 1.0mm, 1.1mm, 1.2mm, or 1.3mm. See, for example... Figure 2 Except for the bottom border, the width of the left, right, and top borders can be 1.1mm, and the width of the bottom border can be between 1.1mm and 1.2mm (including the endpoint values). For example... Figure 7 As shown, the substrate 1 may further include a driving circuit layer 12, which is disposed on one side of the substrate 11 and located in the display area 100. The driving circuit layer 12 contains a driving circuit for controlling the light emission of the light-emitting unit. The driving circuit layer 12 is generally composed of inorganic film layers such as a metal layer, a semiconductor layer (active layer), and an insulating layer. By patterning these inorganic film layers, a driving circuit for controlling the light emission of the light-emitting unit can be formed. There are various ways to implement the specific circuit structure, which will not be described in detail here.

[0043] Optionally, the display panel in this application includes a display area 100 and a non-display area 200 surrounding the display area 100. The display area 100 is the area for displaying images, and the non-display area 200 is the area for not displaying images. Further, the display area 100 has components for displaying images, such as light-emitting elements and a pixel array layer. The non-display area 200 has integrated circuits arranged to perform functions such as signal transmission and driving the light-emitting elements to emit light.

[0044] Optional, refer to Figure 2The bonding area 210 may further include a drive signal area 2102 and a power signal area 2103 spaced apart, with a touch signal area 2101 located between the drive signal area 2102 and the power signal area 2103. The bonding area 210 enables signal transmission between the chip (IC) or flexible circuit board and the display panel by bonding with the chip (IC) or flexible circuit board. For example, after bonding the chip, the power signal area 2103 can provide power signals (e.g., a positive power signal ELVDD and a negative power signal ELVSS) to the display panel. The positive power signal ELVDD can be electrically connected to the anode of the light-emitting device 51 in the display panel, and the negative power signal ELVSS can be electrically connected to the cathode of the light-emitting device 51 in the display panel. The drive signal area 2102 can provide display drive signals to the data lines.

[0045] In these embodiments, the power signal area 2103, the touch signal area 2101, and the drive signal area 2102 are arranged sequentially along the first direction X. A partial overlap hole 30 and array trace 2 can be conveniently provided between the touch signal area 2101, the drive signal area 2102, and the power signal area 2103, and between the drive signal area 2102 and the display area 100, or between the power signal area 2103 and the display area 100, thereby improving the applicability of the display panel.

[0046] Optional, such as Figure 2 and Figure 3 As shown, the orthographic projection of the overlap hole 30 onto the substrate 1 lies within the orthographic projection of the touch trace 4 onto the substrate 1. The touch trace 4 is electrically connected to the array trace 2 through the overlap hole 30. By ensuring that the orthographic projection of the overlap hole 30 onto the substrate 1 lies within the orthographic projection of the touch trace 4 onto the substrate 1, the touch trace 4 can completely cover the overlap hole 30, thereby reducing the problems of overlap misalignment and insufficient overlap area.

[0047] In some embodiments, a portion of the overlap hole 30 is located on the side of the power signal area 2103 away from the touch signal area 2101.

[0048] In these embodiments, the space occupied by the multiple overlapping holes 30 in the first direction X is larger than the space occupied by the touch signal area 2101, and the overlapping holes 30 cannot all be arranged between the touch signal area 2101 and the display area 100. Therefore, the multiple overlapping holes 30 can be arranged in two parts, so that some of the overlapping holes 30 are arranged on the side of the power signal area 2103 away from the touch signal area 2101, so as to increase the pitch of the overlapping holes 30, leave more margin for the process, and facilitate the etching of the overlapping holes 30 to ensure the overlapping area.

[0049] During fabrication, a portion of the film layer fabricated in the display area 100 may extend into the non-display area 200 and cover the overlap hole 30. This portion of the film layer then needs to be etched again to re-expose the overlap hole 30, for example, in the encapsulation layer 6 used to encapsulate the light-emitting device 51. Optionally, if the overlap hole 30 is too close to the pre-fabrication area (display area 100 and part of the non-display area 200) of the encapsulation layer 6, the encapsulation layer 6 may cover the overlap hole 30 during fabrication, preventing the overlap hole 30 from connecting to the touch signal line.

[0050] In some embodiments, the distance between the plurality of overlapping holes 30 and the display area 100 is the same.

[0051] In these embodiments, by making the distance between the multiple overlapping holes 30 and the display area 100 the same, it is beneficial to improve the etching uniformity when etching the above-mentioned partial film layer and improve the overlapping effect of the overlapping holes 30.

[0052] Optional, refer to Figure 2 and Figure 4 The distance between the orthographic projection of the plurality of overlapping holes 30 on the substrate 1 and the orthographic projection of the encapsulation layer 6 on the substrate 1 is the same. Optionally, the orthographic projection of the encapsulation layer 6 on the substrate 1 has a first boundary 60, and the distance between the orthographic projection of the plurality of overlapping holes 30 on the substrate 1 and the first boundary 60 is the same. Optionally, the orthographic projection of the plurality of overlapping holes 30 on the substrate 1 is located outside the orthographic projection of the encapsulation layer 6 on the substrate 1.

[0053] In these optional embodiments, by making the distances between the plurality of overlapping holes 30 and the encapsulation layer 6 or between a single boundary of the encapsulation layer 6 equal, it is beneficial to improve the etching uniformity of the encapsulation layer 6 extending onto the overlapping holes 30 during the etching process, thereby improving the overlapping effect of the overlapping holes 30. After etching, the orthographic projection of the plurality of overlapping holes 30 onto the substrate 1 is located outside the orthographic projection of the encapsulation layer 6 onto the substrate 1, and the orthographic projection of the overlapping holes 30 onto the substrate 1 is spaced apart from the orthographic projection of the first boundary 60 onto the substrate 1.

[0054] Combined with reference Figure 6 and Figure 7 In some embodiments, the display panel further includes a light-emitting functional layer 5, an encapsulation layer 6, and a touch structure layer 7; the light-emitting functional layer 5 is disposed on one side of the substrate 1, and the light-emitting functional layer 5 includes a plurality of light-emitting devices 51 located in the display area 100; the encapsulation layer 6 is disposed on the side of the light-emitting functional layer 5 away from the substrate 1; the touch structure layer 7 is disposed on the side of the encapsulation layer 6 away from the substrate 1, and the touch trace 4 is electrically connected to the touch structure layer 7.

[0055] Optionally, the light-emitting device 51 may include a first electrode, a light-emitting unit, and a second electrode stacked sequentially along the distance from the substrate 1, wherein the first electrode may serve as an anode and the second electrode may serve as a cathode.

[0056] Optionally, the light-emitting unit may further include one or more of the following: an electron injection layer, an electron transport layer, a light-emitting material layer, a hole blocking layer, an electron blocking layer, a hole transport layer, and a hole injection layer. The electron injection layer, electron transport layer, and hole blocking layer may be disposed between the second electrode and the light-emitting material layer. The electron blocking layer, hole transport layer, and hole injection layer may be disposed between the first electrode and the light-emitting material layer.

[0057] Optionally, the encapsulation layer 6 can be a thin film encapsulation (TFE). Optionally, the encapsulation layer 6 includes a first inorganic layer 61, a first organic layer 62, and a second inorganic layer 63 sequentially stacked away from the substrate 1. The inorganic layer is used to effectively block water and oxygen, while the organic layer is used to buffer stress within the inorganic layer and improve the flatness of subsequent film layers in the display panel.

[0058] Optionally, the touch structure layer 7 includes touch driving electrodes and touch sensing electrodes. In this embodiment, the touch method of the display panel can be mutual capacitance touch, that is, the touch trace 4 includes Tx (transmitting) traces (also called touch driving traces) and Rx (receiving) traces (also called touch sensing traces). The Tx traces are used to connect to the touch driving electrodes and transmit touch driving signals to the touch driving electrodes. The Rx traces are used to connect to the touch sensing electrodes and receive touch sensing signals sensed by the touch sensing electrodes. The touch trace 4 in this embodiment may include Tx traces and / or Rx traces.

[0059] In these embodiments, the touch structure layer 7 can be directly fabricated on the encapsulation layer 6 and can use the same chip as the display screen, so that the display panel integrates touch and display, which is beneficial to achieving a thinner display panel.

[0060] In some embodiments, the touch structure layer 7 includes a first touch electrode layer 71 and a second touch electrode layer 72. Optionally, the plurality of touch traces 4 include a first touch trace 41 and a second touch trace 42, wherein the first touch trace 41 is electrically connected to the first touch electrode layer 71 and the second touch trace 42 is electrically connected to the second touch electrode layer 72.

[0061] In these embodiments, the first touch electrode layer 71 may include a plurality of touch driving electrodes, the second touch electrode layer 72 may include a plurality of touch sensing electrodes, the first touch trace 41 may be used as a Tx trace, and the second touch trace 42 may be used as an Rx trace.

[0062] Optionally, the touch structure layer 7 further includes a touch insulating layer 73, which is disposed between the first touch electrode layer 71 and the second touch electrode layer 72. The touch insulating layer 73 can be used to separate the first touch electrode layer 71 and the second touch electrode layer 72.

[0063] Combined with reference Figure 3 and Figure 5 Optionally, the touch insulating layer 73 is disposed on at least a portion of the overlapping hole 30 on the side opposite to the substrate 1. Optionally, the orthographic projection of at least a portion of the overlapping hole 30 onto the substrate 1 lies within the orthographic projection of the touch insulating layer 73 onto the substrate 1. Optionally, the touch insulating layer 73 may comprise organic and / or inorganic materials.

[0064] In these alternative embodiments, by providing a touch insulating layer 73 covering the overlap hole 30, the overlap hole 30 can be protected to prevent short circuits between the chip or the bonding terminals of the bonding area 210 and the overlap hole 30 during bonding.

[0065] Similarly, in some embodiments, the touch structure layer 7 further includes a touch protection layer 74. The touch protection layer 74 is disposed on the side of the first touch electrode layer 71 and / or the second touch electrode layer 72 facing away from the substrate 1, and at least a portion of the overlapping hole 30 is disposed on the side facing away from the substrate 1. Optionally, the orthographic projection of at least a portion of the overlapping hole 30 onto the substrate 1 lies within the orthographic projection of the touch protection layer 74 onto the substrate 1. Optionally, the touch protection layer 74 comprises organic and / or inorganic materials. The touch protection layer 74 may also be disposed above the overlapping hole 30 to protect the overlapping hole 30, thereby preventing a short circuit between the bonding terminals of the chip or bonding area 210 and the overlapping hole 30 during bonding.

[0066] In some embodiments, the touch signal area 2101 is provided with a plurality of spaced touch terminals 20; along the direction from the touch terminal 20 to the adjacent touch terminal 20, i.e., the first direction X, the size of the overlapping hole 30 is larger than the size of the touch terminal 20, and / or the pitch of the overlapping hole 30 is larger than the pitch of the touch terminal 20. In this embodiment, the pitch can be understood as the distance between the center points of two components.

[0067] In these embodiments, along the first direction X, the size of the overlapping hole 30 is larger than the size of the touch terminal 20, which allows the overlapping hole 30 to have a certain overlapping area and improves the overlapping effect. The pitch of the overlapping hole 30 is larger than the pitch of the touch terminal 20, which allows for a larger margin in the process and is also beneficial for etching the overlapping hole 30 to ensure the overlapping area.

[0068] A second aspect of this application provides a display device that includes a display panel of any of the embodiments of the first aspect described above. Since the display device provided in the second aspect of this application includes the display panel of any of the embodiments of the first aspect described above, it possesses the beneficial effects of the display panel of any of the embodiments of the first aspect described above, which will not be elaborated further here.

[0069] The display devices in this application include, but are not limited to, wearable products, mobile phones, personal digital assistants (PDAs), tablets, e-books, televisions, access control systems, smart landline phones, control consoles, and other devices with display functions.

[0070] The embodiments described above are not exhaustive, nor do they limit the invention to the specific embodiments described. Clearly, many modifications and variations can be made based on the above description. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of this application, thereby enabling those skilled in the art to effectively utilize this application and its modifications. This application is limited only by the claims and their full scope and equivalents.

Claims

1. A display panel, characterized in that, The display panel has a display area and a non-display area, the non-display area surrounding at least a portion of the display area, the non-display area including a bonding area and a lead area located on the side of the bonding area closer to the display area; The display panel includes: substrate; Multiple array traces are disposed on one side of the substrate, and the array traces extend from the bonding area to the lead area; A first insulating layer is disposed on the side of the array traces away from the substrate, and the first insulating layer has a plurality of overlapping holes located in the lead area; Multiple touch traces are disposed on one side of the substrate. The touch traces extend from the display area to the lead area, and each touch trace is electrically connected to each array trace through the overlapping hole. The bonding area includes a touch signal area, and at least a portion of the bonding holes are located between the touch signal area and the display area.

2. The display panel according to claim 1, characterized in that, The binding area also includes a drive signal area and a power signal area that are spaced apart, and the touch signal area is located between the drive signal area and the power signal area; Preferably, the projection of the overlapping hole onto the substrate is located within the projection of the touch trace onto the substrate; Preferably, the non-display area is arranged around the outer periphery of the display area, pointing from the center of the display area to the edge of the non-display area, and the width of the non-display area is 1.0 mm to 1.3 mm.

3. The display panel according to claim 2, characterized in that, Some of the overlapping holes are located on the side of the power signal area away from the touch signal area.

4. The display panel according to claim 3, characterized in that, The distance between the plurality of overlapping holes and the display area is the same.

5. The display panel according to claim 1, characterized in that, The display panel also includes: A light-emitting functional layer is disposed on one side of the substrate, and the light-emitting functional layer includes a plurality of light-emitting devices located in the display area; An encapsulation layer is disposed on the side of the light-emitting functional layer opposite to the substrate; A touch structure layer is disposed on the side of the encapsulation layer opposite to the substrate, and the touch traces are electrically connected to the touch structure layer; Preferably, the encapsulation layer includes a first inorganic layer, a first organic layer, and a second inorganic layer sequentially stacked away from the substrate.

6. The display panel according to claim 5, characterized in that, The distance between the projection of the plurality of overlapping holes onto the substrate and the projection of the encapsulation layer onto the substrate is the same; Preferably, the encapsulation layer has a first boundary in its orthographic projection onto the substrate, and the distance between the plurality of overlapping holes and their orthographic projection onto the substrate and the first boundary is the same. Preferably, the projection of the plurality of overlapping holes onto the substrate is located outside the projection of the encapsulation layer onto the substrate.

7. The display panel according to claim 5, characterized in that, The touch structure layer includes a first touch electrode layer and a second touch electrode layer, and the multiple touch traces include a first touch trace and a second touch trace. The first touch trace is electrically connected to the first touch electrode layer, and the second touch trace is electrically connected to the second touch electrode layer.

8. The display panel according to claim 7, characterized in that, The touch structure layer further includes a touch insulating layer, which is disposed between the first touch electrode layer and the second touch electrode layer; Preferably, the touch insulating layer is disposed on at least a portion of the overlapping holes on the side opposite to the substrate; Preferably, at least a portion of the overlapping holes are projected onto the substrate in the orthographic projection of the touch insulating layer onto the substrate; Preferably, the touch insulating layer comprises organic materials and / or inorganic materials; Preferably, the touch structure layer further includes a touch protection layer, the touch protection layer being disposed on the side of the first touch electrode layer and / or the second touch electrode layer away from the substrate, and the touch protection layer being disposed on at least a portion of the overlapping holes on the side away from the substrate; Preferably, at least a portion of the overlapping holes are projected onto the substrate in the orthographic projection of the touch protection layer onto the substrate; Preferably, the touch protection layer comprises organic materials and / or inorganic materials.

9. The display panel according to claim 1, characterized in that, The touch signal area is provided with a plurality of spaced touch terminals; along the direction from the touch terminal to the adjacent touch terminal, the size of the overlapping hole is larger than the size of the touch terminal, and / or the pitch of the overlapping hole is larger than the pitch of the touch terminal.

10. A display device, characterized in that, The display panel includes any one of claims 1 to 9.

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