Display panel and display device

Abstract

The present application discloses a display panel and a display device. The display panel comprises: a driving backplane, a light-emitting device, an encapsulation layer, a touch electrode layer, and a plurality of touch leads. The driving backplane is provided with a support portion. The support portion is distributed on at least one side of the touch leads, and the thickness of the support portion is greater than the thickness of the touch leads. Therefore, when a mask is used to deposit the encapsulation layer on the driving backplane, the support portion can be used to raise the mask, which reduces the risk of the mask scratching the area of the driving backplane where the touch leads need to be arranged, thereby improving the flatness of the area. In this way, it can be ensured that the touch leads can be distributed on the area of the driving backplane having good flatness, thereby avoiding undesirable phenomena such as short circuit or disconnection of the touch leads, and improving the reliability of the display panel.

Description

Display panel and display device Technical Field

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

[0002] A display panel is a device used to display images and text.

[0003] Currently, touch display panels integrate a touch electrode layer, which is generally formed after the encapsulation layer. The encapsulation layer usually needs to be deposited using an open mask. During the movement of the mask, the organic film layer located in the non-display area of ​​the display panel is easily scratched by the mask, resulting in unevenness of the organic film layer.

[0004] However, when forming the touch leads that are electrically connected to the aforementioned touch electrode layer, metal materials are prone to remain in uneven areas of the organic film layer, which can lead to defects such as short circuits or broken wires, resulting in lower reliability of the display panel. Summary of the Invention

[0005] This application provides a display panel and a display device. The technical solution is as follows:

[0006] According to one aspect of this application, a display panel is provided, the display panel having a display area and a non-display area located around the display area, the non-display area including a bonding area, and the boundary of the display area closer to the bonding area being a first boundary; the display panel includes: a driving backplate, a light-emitting device, a touch electrode layer, and multiple touch leads;

[0007] The drive backplate has a support portion and at least one baffle. The support portion is at least distributed within the non-display area, and the baffle is located within the non-display area and distributed around the display area.

[0008] The light-emitting device is located on one side of the driving back plate, and the touch electrode layer is located on the side of the light-emitting device away from the driving back plate.

[0009] The plurality of touch leads are all electrically connected to the touch electrode layer. The extension direction of the touch leads intersects the extension direction of the first boundary, and at least a portion of the touch leads in the orthogonal projection on the drive back plate is located between the at least one retaining wall and the bonding area.

[0010] The support portion is distributed on at least one side of the touch lead in a first direction parallel to the extension direction of the first boundary, and the thickness of the support portion is greater than the thickness of the touch lead in a direction perpendicular to the drive back plate.

[0011] Optionally, the multiple touch leads are divided into at least one group, and one group of touch leads includes multiple touch leads arranged continuously in the first direction. The number of support portions is multiple, and at least one support portion is distributed on both sides of the group of touch leads that are opposite to each other in the first direction.

[0012] Optionally, the plurality of support portions include: at least two strip-shaped support portions, the extending direction of the strip-shaped support portions being parallel to the extending direction of the touch leads, and a group of the touch leads being distributed between the two strip-shaped support portions in the first direction.

[0013] Optionally, the display panel further includes: a virtual lead, the virtual lead being separately disposed from the touch electrode layer, and the extension direction of the virtual lead being parallel to the extension direction of the touch lead, the virtual lead being disposed in the same layer as the touch lead and being made of the same material;

[0014] The virtual leads are distributed in the first direction between a group of touch leads and the adjacent strip support portion.

[0015] Optionally, the spacing between the virtual lead and the adjacent strip support in the first direction is in the range of 20 micrometers to 100 micrometers.

[0016] Optionally, the plurality of support portions further include at least one auxiliary support portion distributed between two adjacent touch leads;

[0017] The auxiliary support portion is in the form of a strip or a block.

[0018] Optionally, when the auxiliary support is strip-shaped, the extending direction of the auxiliary support is parallel to the extending direction of the strip-shaped support.

[0019] Alternatively, if the auxiliary support portion is block-shaped, multiple auxiliary support portions are distributed between two adjacent touch leads, and the multiple auxiliary support portions are evenly distributed along the extension direction parallel to the touch leads.

[0020] Optionally, the plurality of support portions include: a plurality of block support portions, the plurality of block support portions being arranged in an array of multiple columns along the first direction, and a group of touch leads being distributed in the first direction between two columns of block support portions.

[0021] Optionally, multiple rows of the block-shaped support portions and multiple touch leads are arranged alternately in the first direction.

[0022] Optionally, for the two columns of block-shaped support portions distributed on both sides of the same touch lead, a plurality of block-shaped support portions in one column are staggered with a plurality of block-shaped support portions in the other column in a direction perpendicular to the extension of the touch lead.

[0023] Optionally, the driving backplate includes: a substrate, and a plurality of stacked organic layers located on one side of the substrate, wherein the portion of the driving backplate located in the non-display area has a first groove penetrating at least one of the organic layers, and at least a portion of the touch leads are distributed in the first groove;

[0024] Wherein, at least a portion of the support portion has its orthographic projection on the substrate located outside the orthographic projection of the first groove on the substrate.

[0025] Optionally, the plurality of stacked organic layers include: a first planarization layer, the first groove including: a first sub-groove penetrating the first planarization layer, and at least a portion of the touch leads having an orthographic projection on the substrate located within the orthographic projection of the first sub-groove on the substrate;

[0026] The driving backplate further includes: peripheral traces distributed in the non-display area, wherein the orthographic projection of the peripheral traces on the substrate overlaps with the orthographic projection of the first sub-groove on the substrate, and the peripheral traces are insulated from the touch leads;

[0027] The support portion includes a first part and a second part, wherein the orthographic projection of the first part on the substrate is distributed outside the orthographic projection of the first sub-groove on the substrate, and the orthographic projection of the second part on the substrate is distributed within the orthographic projection of the first sub-groove on the substrate.

[0028] Optionally, the driving backplate further includes: a pixel definition layer located on the side of the plurality of stacked organic layers facing away from the substrate, and a plurality of support pillars located on the side of the pixel definition layer facing away from the substrate, the support pillars being located between the orthographic projections of two adjacent light-emitting devices on the driving backplate;

[0029] The first part is disposed on the same layer as the pixel definition layer and is made of the same material, and the second part is disposed on the same layer as the support column and is made of the same material.

[0030] Optionally, the plurality of stacked organic layers include: a second planar layer located on the side of the first planar layer opposite to the substrate, and the first groove further includes: a second sub-groove penetrating the second planar layer, the second sub-groove being connected to the first sub-groove;

[0031] Wherein, at least a portion of the touch lead is projected onto the substrate within the projection of the second sub-groove onto the substrate, and the projection of the support portion onto the substrate is entirely distributed outside the projection of the second sub-groove onto the substrate.

[0032] Optionally, the touch lead includes: a first lead segment and a second lead segment connected to each other, wherein the first lead segment is closer to the display area than the second lead segment;

[0033] The first lead segment is disposed in the same layer as the touch electrode layer and is made of the same material, while the second lead segment is disposed in a different layer from the touch electrode layer.

[0034] Optionally, the drive backplane includes: a substrate, and an insulating layer located on one side of the substrate; in a direction perpendicular to the substrate, the insulating layer is located between the first lead segment and the second lead segment, and the insulating layer covers the second lead segment;

[0035] The insulating layer has a first via, through which the first lead segment overlaps with the second lead segment.

[0036] Optionally, the touch lead further includes: a third lead connected to the second lead segment, the third lead segment being further away from the display area relative to the second lead segment;

[0037] The third lead segment is disposed in the same layer as the touch electrode layer and is made of the same material. The insulating layer has a second via, and the third lead segment overlaps with the second lead segment through the second via.

[0038] Optionally, the display panel further includes: crack detection traces, which are distributed in the non-display area and are disposed in the same layer as the touch electrode layer and made of the same material;

[0039] The drive backplate has a second groove distributed around the display area, the second groove being located between the at least one baffle and the display area;

[0040] At least a portion of the crack detection trace is located within the second groove.

[0041] Optionally, the at least one barrier includes: a first barrier and a second barrier, wherein the first barrier is closer to the display area than the second barrier, and the second groove is located between the first barrier and the display area.

[0042] Optionally, the display panel further includes: a first inorganic encapsulation layer, a first organic encapsulation layer, and a second inorganic encapsulation layer stacked together;

[0043] The first organic encapsulation layer is located within the area enclosed by the barrier wall, and the outer boundaries of the orthographic projections of the first inorganic encapsulation layer and the second inorganic encapsulation layer on the substrate surround the periphery of the orthographic projections of the barrier wall on the substrate.

[0044] The portion of the encapsulation layer distributed in the non-display area is projected onto the drive backplate and overlaps with the support portion.

[0045] On the other hand, a display device is provided, comprising: a power supply component, and a display panel electrically connected to the power supply component, the display panel comprising: any of the above-described display panels.

[0046] The beneficial effects of the technical solutions provided in this application include at least the following:

[0047] In the display panel provided in this application, the driving backplane is provided with a support portion. Since the support portion is distributed on at least one side of the touch leads, and its thickness is greater than the thickness of the touch leads, when a mask is used to deposit and form an encapsulation layer on the driving backplane, the support portion can be used to elevate the mask, reducing the risk of the mask scraping against areas of the driving backplane where touch leads need to be located, thereby improving the flatness of these areas. This ensures that the touch leads can be distributed on areas of good flatness in the driving backplane, avoiding defects such as short circuits or broken wires, and improving the reliability of the display panel. Attached Figure Description

[0048] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0049] Figure 1 is a schematic diagram of the manufacturing process of a display panel provided by related technologies;

[0050] Figure 2 is a partial structural schematic diagram of a display panel provided in an embodiment of this application;

[0051] Figure 3 is a schematic cross-sectional structure of the display panel shown in Figure 2;

[0052] Figure 4 is a partial enlarged view of the display panel shown in Figure 2;

[0053] Figure 5 is a schematic cross-sectional structure of the display panel shown in Figure 4;

[0054] Figure 6 is a partial structural schematic diagram of another display panel provided in an embodiment of this application;

[0055] Figure 7 is a schematic cross-sectional structure of the display panel shown in Figure 6;

[0056] Figure 8 is a partial structural schematic diagram of another display panel provided in an embodiment of this application;

[0057] Figure 9 is a partial structural schematic diagram of another display panel provided in an embodiment of this application;

[0058] Figure 10 is a schematic cross-sectional structure of the display panel shown in Figure 9;

[0059] Figure 11 is a partial structural schematic diagram of another display panel provided in an embodiment of this application;

[0060] Figure 12 is a schematic diagram of the film layer structure in the display area of ​​another display panel provided in an embodiment of this application;

[0061] Figure 13 is a schematic diagram of the film layer structure of another display panel in the non-display area provided in an embodiment of this application;

[0062] Figure 14 is a partial structural schematic diagram of another display panel provided in an embodiment of this application;

[0063] Figure 15 is a schematic cross-sectional structure of the display panel shown in Figure 14;

[0064] Figure 16 is a partial structural schematic diagram of another display panel provided in an embodiment of this application;

[0065] Figure 17 is a schematic cross-sectional structure of the display panel shown in Figure 16;

[0066] Figure 18 is a partial structural schematic diagram of another display panel provided in an embodiment of this application;

[0067] Figure 19 is a schematic cross-sectional structure of the display panel shown in Figure 18;

[0068] Figure 20 is a schematic diagram of another cross-sectional structure of the display panel shown in Figure 18;

[0069] Figure 21 is a partial enlarged view of the display panel shown in Figure 2;

[0070] Figure 22 is a schematic diagram of a cross-sectional structure of the display panel shown in Figure 21.

[0071] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0072] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0073] Please refer to Figure 1, which is a schematic diagram of the manufacturing process of a display panel provided by related technologies. The encapsulation layer or cathode layer of this display panel typically needs to be deposited using a mask M. Due to the tendency of the mask M's edges to sag, and manufacturing errors causing uneven edges, the edges of the mask M can easily rub against the driving backplate 11 during its movement, resulting in uneven contact between the driving backplate 11 and the mask M. Consequently, during the subsequent formation of touch leads, metal material can easily remain on the uneven areas of the driving backplate 11, leading to defects such as short circuits or open circuits, and ultimately resulting in lower reliability of the display panel.

[0074] This application provides a display panel. Please refer to Figures 2, 3, 4, and 5. Figure 2 is a partial structural schematic diagram of the display panel provided in this application embodiment. Figure 3 is a cross-sectional structural schematic diagram of the display panel provided in Figure 2 (Figure 3 can be a cross-sectional structural schematic diagram of the display panel provided in Figure 2 at B1-B1). Figure 4 is a partial enlarged view of the display panel provided in Figure 2 (Figure 4 is a partial enlarged view of the display panel provided in Figure 2 at C1). Figure 5 is a cross-sectional structural schematic diagram of the display panel provided in Figure 4 (Figure 5 can be a cross-sectional structural schematic diagram of the display panel provided in Figure 4 at B2-B2). The display panel 10 has a display area A1 and a non-display area A2 located around the display area A1. The non-display area A2 includes a bonding area A21. The boundary of the display area A1 closer to the bonding area A21 is a first boundary A11. Here, the display area A1 can be an area for displaying images or text, the non-display area A2 can be an area for setting circuit structures, and the bonding area A21 is used to bond circuit structures such as driver chips. This application can employ chip-on-film (COF) technology or chip-on-plastic (COP) technology, which bonds the driver chip to a plastic substrate. COF technology integrates the driver chip onto a flexible circuit board and electrically connects the flexible circuit board to the bonding area A21. The flexible circuit board can be bent to the back of the display panel, achieving a narrow bezel effect.

[0075] The display panel includes: a driving backplane 11, a light-emitting device 12, an encapsulation layer 13, a touch electrode layer 14, and multiple touch leads 15.

[0076] The driving backplate 11 has a support portion 112 and at least one baffle 113. The support portion 112 is distributed at least within the non-display area A2, and the baffle 113 is located within the non-display area A2 and distributed around the display area A1. Here, the driving backplate 11 can be used to support other structures in the display panel 10. The driving backplate 11 may also include a substrate 111 and a driving circuit (not shown in FIG. 2) disposed on the substrate 111, thereby enabling the driving backplate 11 to be used to drive the light-emitting device 12 to emit light.

[0077] The support portion 112 is used to support the mask and elevate it, preventing the mask from rubbing against the film layers in the driving backplate 11, such as the planarization layer, pixel definition layer, and other organic film layers. Thus, the support portion 112 can reduce the risk of mask rubbing. For example, the mask can be the mask used to manufacture the encapsulation layer 13.

[0078] The barrier 113 is used to block the organic encapsulation layer within the display area A1, preventing it from flowing into the non-display area A2. For example, the display panel 10 may include two barriers 113. During the formation of the organic encapsulation layer, even if material overflows from the barrier 113 closest to the display area A1, it can remain in the groove between adjacent barriers 113, preventing further overflow. However, the display panel 10 may also include only one barrier 113; this embodiment does not limit this. The barrier 113 may be a single unit or formed by stacking film layers in the display area A1.

[0079] There are multiple light-emitting devices 12, which can be located on the same side of the driving backplate 11 and distributed within the display area A1. Here, the light-emitting devices 12 are used to emit light beams in a direction away from the driving backplate 11. In this embodiment, each light-emitting device 12 can be electrically connected to the driving circuit in the driving backplate 11 to control the light-emitting state and brightness of each light-emitting device 12.

[0080] The encapsulation layer 13 is located on the side of the plurality of light-emitting devices 12 away from the driving backplate 11, and at least a portion of the encapsulation layer 13 is located within the display area A1. Here, the encapsulation layer 13 is used to encapsulate the light-emitting devices 12 distributed within the display area A1 to prevent the light-emitting devices 12 from failing to emit light due to contact with moisture.

[0081] The touch electrode layer 14 may be located on the side of the encapsulation layer 13 away from the driving backplate 11, but this embodiment is not limited to this. In this embodiment, the display panel 10 may adopt Flexible Multi Layer On Cell (FMLOC) technology. The FMLOC process refers to integrating the touch electrode layer 14 into the encapsulation layer 13 of the display panel 10 to perform touch control, thereby achieving a thinner and lighter display panel.

[0082] Here, the touch electrode layer 14 can be a grid-shaped metal electrode layer. For example, the touch electrode layer 14 has multiple grid holes corresponding one-to-one with multiple light-emitting devices 12, and the orthographic projection of each light-emitting device 12 on the driving back plate 11 can be located within the orthographic projection of the corresponding grid hole on the driving back plate 11. That is, the orthographic projection of the touch electrode layer 14 on the driving back plate 11 does not coincide with the orthographic projection of the light-emitting device 12 on the driving back plate 11. Therefore, even if the material of the touch electrode layer 14 is an opaque metal material, it can be ensured that the touch electrode layer 14 will not block the light-emitting device 12, so that the light emitted by the light-emitting device 12 can be transmitted through the corresponding grid holes in the touch electrode layer 14, thereby ensuring that the display panel 10 can display the image normally.

[0083] Multiple touch leads 15 are electrically connected to the touch electrode layer 14. The extension direction of the touch leads 15 intersects the extension direction of the first boundary A11; for example, the extension direction of the touch leads 15 is perpendicular to the extension direction of the first boundary A11. The touch leads 15 can also be electrically connected to the touch chip, thereby enabling the touch chip to control the touch electrode layer 14.

[0084] At least a portion of the touch lead 15 in its orthographic projection on the drive backplate 11 lies between at least one baffle 113 and the bonding area A21. Exemplarily, multiple touch leads 15 may be distributed between the first baffle 113a and the bonding area A21, closer to the display area A1. Since the outer boundary of the encapsulation layer 13 is also located between the first baffle 113a and the bonding area A21, the touch leads 15 are susceptible to abrasion from the mask used to manufacture the encapsulation layer 13. Multiple touch leads 15 may also be distributed between the second baffle 113b and the bonding area A21, further away from the display area A1; this embodiment of the application does not limit this distribution.

[0085] It should be noted that the display panel may further include: a first touch connection line 171 and a second touch connection line 172. One end of the touch lead 15 is electrically connected to the touch electrode layer 14 via the first touch connection line 171, and the other end of the touch lead 15 is bonded to the touch chip via the second touch connection line 172. The first touch connection line 171 is located within the baffle 113. The organic encapsulation layer can be used to improve flatness, therefore the first touch connection line 171 is not easily affected by the mask. The second touch connection line 172 is far from the outer boundary of the encapsulation layer 13, therefore the second touch connection line 172 is also not easily affected by the mask. For example, the distance between the second touch connection line 172 and the outer boundary of the encapsulation layer 13 is greater than 60 micrometers.

[0086] The support portion 112 is distributed on at least one side of the touch lead 15 in a first direction X parallel to the extension direction of the first boundary A11, and the thickness of the support portion 112 is greater than the thickness of the touch lead 15 in the direction perpendicular to the drive back plate 11.

[0087] In this embodiment, in the first direction X, the support portion 112 may be located only on one side of the touch lead 15, or the support portion 112 may be located on both sides of the touch lead 15. In both cases, the support portion 112 can provide a certain degree of support for the mask plate, thereby reducing the scratching of the mask plate on the area of ​​the drive back plate 11 where the touch lead 15 needs to be installed. Furthermore, the thickness of the support portion 112 is greater than the thickness of the touch lead 15, which can further reduce the risk of scratching and avoid short circuits or broken wires caused by metal residue, thereby improving the reliability of the display panel.

[0088] In summary, this application provides a display panel in which a driving backplane is provided with a support portion. Since the support portion is distributed on at least one side of the touch leads, and its thickness is greater than the thickness of the touch leads, the support portion can be used to elevate the mask during the deposition of the encapsulation layer on the driving backplane using a photomask. This reduces the risk of the photomask scraping against areas of the driving backplane where touch leads need to be located, thereby improving the flatness of these areas. This ensures that the touch leads are distributed on relatively flat areas of the driving backplane, preventing short circuits or broken wires and improving the reliability of the display panel.

[0089] The structure of the support section is described below:

[0090] Please refer to Figures 2 and 4. Multiple touch leads 15 are divided into at least one group, and each group of touch leads 15 includes multiple touch leads 15 continuously arranged in the first direction X. For example, the non-display area A2 includes a lower border area with a binding area A21. The display panel provided in this embodiment has two groups of touch leads 15, and the two groups of touch leads 15 are respectively distributed at the left and right ends of the lower border area in the first direction X. For example, the multiple touch leads 15 shown in Figure 4 can be touch leads 15 in the same group.

[0091] There are multiple support portions 112, and at least one support portion 112 is distributed on each side of a group of touch leads 15 that are opposite each other in the first direction X. For multiple touch leads 15 in the same group, their arrangement is relatively dense. By providing support portions 112 on both sides of a group of touch leads 15, the distance between the area in the drive backplate 11 where a group of touch leads 15 is located and the mask plate can be increased, thereby effectively reducing the risk of mask plate scratching and avoiding adverse phenomena such as short circuits or broken wires caused by metal residue.

[0092] It should be noted that in the display panel shown in Figure 4, the number of support portions 112 provided on both sides of a set of touch leads 15 is one. However, the embodiments of this application are not limited to this. The number of support portions 112 provided on both sides of a set of touch leads 15 can also be multiple. This can improve the support effect of the support portions 112 and reduce the risk of the mask plate scratching the area of ​​the drive back plate 11 corresponding to a set of touch leads 15.

[0093] In this application embodiment, the shape and structure of the support portion 112 can be varied. Two exemplary embodiments are described below:

[0094] In the first scenario, please refer to Figures 6 and 7. Figure 6 is a partial structural schematic diagram of another display panel provided in this embodiment, and Figure 7 is a cross-sectional structural schematic diagram of the display panel provided in Figure 6 (Figure 7 may be a cross-sectional structural schematic diagram of the display panel provided in Figure 6 at point B3-B3). The plurality of support portions 112 include at least two strip-shaped support portions 112a, the extension direction of which is parallel to the extension direction of the touch leads 15. A set of touch leads 15 is distributed between the two strip-shaped support portions 112a in a first direction X. By providing at least two strip-shaped support portions 112a with the same extension direction as the touch leads 15, a certain distance can be ensured between the mask plate and the area in the drive backplate 11 where a set of touch leads 15 is provided, and the support stability is good, thus reducing the risk of scratches.

[0095] It should be noted that, in the display panel shown in Figure 6, the number of strip-shaped support portions 112a provided on both sides of a set of touch leads 15 is one. However, the embodiments of this application are not limited to this. The number of strip-shaped support portions 112a provided on both sides of a set of touch leads 15 can also be multiple. This can improve the support effect of the strip-shaped support portions 112a on the mask plate. Multiple strip-shaped support portions 112a can be arranged at intervals along the first direction X.

[0096] In this embodiment, the dimensions of the strip support portion 112a can be set according to requirements. For example, the width of the strip support portion 112a in the first direction X can be greater than or equal to 100 micrometers, thus ensuring the stability of the strip support portion 112a in supporting the mask. The length of the strip support portion 112a can be greater than or equal to the touch lead 15, thus effectively preventing the mask from scratching and avoiding short circuits or broken wires caused by metal residue.

[0097] Optionally, referring to Figures 6 and 7, the display panel further includes a virtual lead D1. The virtual lead D1 is separated from the touch electrode layer, and its extension direction is parallel to that of the touch lead 15. The virtual lead D1 and the touch lead 15 are disposed in the same layer and made of the same material. Here, the virtual lead D1 is not electrically connected to other structures, that is, the virtual lead D1 is not connected to electrical signals.

[0098] The virtual lead D1 is distributed in the first direction X between a group of touch leads 15 and the adjacent strip support portion 112a. To improve scratch resistance, the support portion 112 is relatively thick, resulting in a certain step difference at its edge. During the patterning process of manufacturing the touch leads 15, there is a risk of metal material residue at the step difference. Therefore, the touch leads 15 closer to the support portion 112 also have a greater risk of short circuit. By setting the virtual lead D1, since it is not connected to an electrical signal, even if the virtual lead D1 connects to residual metal material, there is no risk of short circuit, thereby improving the reliability of the display panel.

[0099] Optionally, the distance E1 between the virtual lead D1 and the adjacent strip support 112a in the first direction X ranges from 20 micrometers to 100 micrometers. By setting the distance E1 within this range, on the one hand, it can avoid the reduced support effect caused by the distance between the virtual lead D1 and the adjacent strip support 112a being too large; on the other hand, it can avoid the risk of residual step difference caused by the distance between the virtual lead D1 and the adjacent strip support 112a being too small.

[0100] It should be noted that for a display panel without virtual lead D1, as shown in Figure 5, the distance between the touch lead 15 closest to the support 112 and the adjacent support 112 in the first direction X can also be 20 micrometers to 100 micrometers.

[0101] Optionally, please refer to Figure 8, which is a partial structural schematic diagram of another display panel provided in an embodiment of this application. The plurality of support portions 112 further include at least one auxiliary support portion 112b distributed between two adjacent touch leads 15. The auxiliary support portion 112b can also be used to support the mask plate. Furthermore, if the distance between two adjacent strip-shaped support portions 112a is too large, the mask plate may still be at risk of scratching due to factors such as gravity sagging, or insufficient support stability. The auxiliary support portion 112b can effectively avoid these problems, thereby further improving the support effect of the support portion.

[0102] The auxiliary support portion 112b is in the form of a strip or a block. For example, in the display panel shown in FIG8, the plurality of support portions 112 include auxiliary support portions 112b of both shapes, but this application is not limited to this, and the plurality of support portions 112 may also include only one shape of auxiliary support portion 112b for ease of manufacturing.

[0103] Optionally, when the auxiliary support portion 112b is strip-shaped, the extending direction of the auxiliary support portion 112b is parallel to the extending direction of the strip-shaped support portion 112a. Since the spacing between two adjacent touch leads 15 is small, typically 20 micrometers, the width of the auxiliary support portion 112b in this case can be smaller than the width of the strip-shaped support portion 112a to ensure that there is a certain spacing between the auxiliary support portion 112b and the adjacent touch leads 15. For example, the width of the auxiliary support portion 112b in this case can be 10 micrometers.

[0104] Alternatively, when the auxiliary support portion 112b is block-shaped, multiple auxiliary support portions 112b are distributed between two adjacent touch leads 15, and the multiple auxiliary support portions 112b are evenly distributed along the extension direction parallel to the touch lead 15. In this case, the auxiliary support portion 112b can save material and reduce the area where there are step differences at the edge of the auxiliary support portion 112b, thereby reducing the risk of metal material residue.

[0105] In this embodiment, the stability of the support can be improved by configuring the arrangement of the auxiliary support portions 112b. For example, when multiple support portions 112 include multiple auxiliary support portions 112b, the multiple auxiliary support portions 112b can be evenly arranged in the first direction X. For instance, the number of touch leads 15 between any two adjacent support portions 112 can be the same. When multiple support portions 112 include only one auxiliary support portion 112b, the number of touch leads 15 between the auxiliary support portion 112b and the adjacent strip-shaped support portions 112a on both sides can be the same.

[0106] In the second scenario, please refer to Figures 9 and 10. Figure 9 is a partial structural schematic diagram of another display panel provided in an embodiment of this application, and Figure 10 is a cross-sectional structural schematic diagram of the display panel provided in Figure 9 (Figure 10 may be a cross-sectional structural schematic diagram of the display panel provided in Figure 9 at point B4-B4). The plurality of support portions 112 include: a plurality of block-shaped support portions 112c, which are arranged in multiple columns along the first direction X. A set of touch leads 15 is distributed between two columns of block-shaped support portions 112c in the first direction X. In this way, at least these two columns of block-shaped support portions 112c can ensure that there is a certain distance between the mask plate and the area in the drive back plate 11 where a set of touch leads 15 is disposed, thereby reducing the risk of scratches.

[0107] Optionally, multiple rows of block-shaped support portions 112c and multiple touch leads 15 are alternately arranged in the first direction X. Figure 9 illustrates an example of an "alternating arrangement," where the block-shaped support portions 112c and touch leads 15 are arranged alternately in sequence. In this case, a row of block-shaped support portions 112c is provided between every two adjacent touch leads 15, resulting in better support stability for the support portions 112c. However, the embodiments of this application are not limited to this. For example, the "alternating arrangement" can also be that a row of block-shaped support portions 112c is provided every few touch leads 15. In this case, the density of the block-shaped support portions 112c is lower, but the step difference of the block-shaped support portions 112c results in a lower risk of metal residue.

[0108] In this embodiment of the application, please refer to Figure 9 for one arrangement of the multiple block support parts 112c. The multiple block support parts 112c can also be arranged in multiple rows along a direction perpendicular to the first direction X, that is, a row and column arrangement.

[0109] For another arrangement, please refer to Figure 11, which is a partial structural schematic diagram of another display panel provided in this application embodiment. For the two columns of block-shaped support portions 112c distributed on both sides of the same touch lead 15, multiple block-shaped support portions 112c in one column are staggered with multiple block-shaped support portions 112c in the other column in the direction perpendicular to the extension of the touch lead 15. In this way, compared to the row and column arrangement shown in Figure 9, the staggered arrangement can further improve the support effect in the direction perpendicular to the first direction X while maintaining the same density of block-shaped support portions 112c.

[0110] The distribution area of ​​the support components is described below:

[0111] Optionally, please refer to Figures 4 and 12. Figure 12 is a schematic diagram of the film layer structure of another display panel in the display area provided by an embodiment of this application. The encapsulation layer 13 includes: a first inorganic encapsulation layer 131, a first organic encapsulation layer 132, and a second inorganic encapsulation layer 133 stacked together.

[0112] The first organic encapsulation layer 132 is located within the area enclosed by the barrier 113. The first organic encapsulation layer 132 is used to improve the flatness of the encapsulation layer 13. The manufacturing process of the first organic encapsulation layer 132 may include inkjet printing (IJP) process.

[0113] The outer boundaries of the orthographic projections of the first inorganic encapsulation layer 131 and the second inorganic encapsulation layer 133 onto the substrate 111 surround the periphery of the orthographic projection of the baffle wall 113 onto the substrate 111. That is, a portion of the first inorganic encapsulation layer 131 and the second inorganic encapsulation layer 133 are located within the area enclosed by the baffle wall 113, while another portion of the first inorganic encapsulation layer 131 and the second inorganic encapsulation layer 133 are distributed around the periphery of the baffle wall 113. The first inorganic encapsulation layer 131 and the second inorganic encapsulation layer 133 are used to ensure the encapsulation effect of the encapsulation layer 13. The manufacturing process of the first inorganic encapsulation layer 131 and the second inorganic encapsulation layer 133 may include chemical vapor deposition (CVD).

[0114] In this configuration, the portion of the encapsulation layer 13 distributed in the non-display area A2 overlaps with the support portion 112 on the drive backplate 11. That is, a part of the support portion 112 is located outside the boundary of the encapsulation layer 13, while another part of the support portion 112 is located inside the boundary of the encapsulation layer 13. In this way, even if the photomask moves slightly, the support portion 112 can still provide support and elevation, ensuring that the touch lead 15 will not experience short circuits or breaks, thereby improving the reliability of the display panel.

[0115] Additionally, referring to Figure 12, the driving backplane 11 in the display panel 10 may include: a substrate 111, and a gate layer 118a, a gate insulating layer 117a, an active layer 116, an interlayer boundary layer 117b, a first source-drain layer 118b, a first planarization layer 114a, a second source-drain layer 118c, a second planarization layer 114b, a third source-drain layer 118d, a third planarization layer 114c, a pixel definition layer 119, and a plurality of support pillars 116 stacked on one side of the substrate 111.

[0116] The active layer 116, gate layer 118a, first source-drain layer 118b, second source-drain layer 118c, and third source-drain layer 118d are used to form a pixel driving circuit electrically connected to the light-emitting device 12, as well as various signal lines electrically connected to the pixel driving circuit. The light-emitting device 12 includes a stacked anode layer 121, a light-emitting layer 122, and a cathode layer 123. The pixel driving circuit can be electrically connected to the anode layer 121 in the light-emitting device 12.

[0117] In this application, the support portion 112 provided in the above embodiments can be manufactured in the same layer and made of the same material as the support column 116, which can save processes and facilitate manufacturing. For example, the thickness of the support column 116 can range from 2.1 micrometers to 2.4 micrometers, thus ensuring that the thickness of the support portion 112 is sufficient to elevate the mask plate to prevent scratches. Alternatively, the support portion 112 can also be a separately manufactured structure; this application does not limit this.

[0118] The embodiments of this application can further reduce the risk of mask scratching through various implementation methods. Several exemplary embodiments are described below:

[0119] In a first exemplary embodiment, a first groove may be provided in the organic layer to further reduce the risk of mask scratches.

[0120] Please refer to Figures 12 and 13. Figure 13 is a schematic diagram of the film layer structure of another display panel in the non-display area provided in an embodiment of this application. The driving backplate 11 includes a substrate 111 and a plurality of stacked organic layers 114 located on one side of the substrate 111. The portion of the driving backplate 11 located in the non-display area A2 has a first groove K1 penetrating at least one organic layer 114, and at least a portion of the touch leads 15 are distributed within the first groove K1.

[0121] By setting the first groove K1, the distance between the mask and the area where the first groove K1 is set in the driving back plate 11 is increased, which reduces the probability of the area being scratched by the mask, thus improving the flatness of the area where the first groove K1 is set. Distributing at least a portion of the touch leads 15 within the first groove K1 ensures that at least a portion of the touch leads 15 are distributed in a flatter area of ​​the driving back plate 11, thereby avoiding defects such as short circuits or broken wires in the touch leads 15, and thus improving the reliability of the display panel.

[0122] At least a portion of the support portion 112 has its orthographic projection on the substrate 111 outside the orthographic projection of the first groove K1 on the substrate 111. In this way, the first groove K1 can further increase the height difference between the area where the support portion 112 is located and the area where the touch lead 15 needs to be set, thereby improving the anti-scratch effect of the support portion 112.

[0123] In this embodiment of the application, referring to FIG12, the organic layer 114 may include at least one of a first planarization layer 114a, a second planarization layer 114b, and a third planarization layer 114c. Therefore, the first groove K1 can penetrate at least one of the first planarization layer 114a, the second planarization layer 114b, and the third planarization layer 114c. Thus, the first groove K1 has various configurations, which are described below with several exemplary embodiments:

[0124] For the first scenario, please refer to Figures 12, 14, and 15. Figure 14 is a partial structural schematic diagram of another display panel provided in this application embodiment (the second and third planarization layers are not shown in Figure 14 to clearly illustrate the first groove, but this application embodiment does not limit this). Figure 15 is a cross-sectional structural schematic diagram of the display panel provided in Figure 14 (Figure 15 can be a cross-sectional structural schematic diagram of the display panel provided in Figure 14 at B5-B5). The multiple stacked organic layers 114 include: a first planarization layer 114a; the first groove K1 includes: a first sub-groove K11 penetrating the first planarization layer 114a; at least a portion of the touch leads 15 have their orthogonal projection on the substrate 111 located within the orthogonal projection of the first sub-groove K11 on the substrate 111. The area where the first sub-groove K11 is provided is less prone to scratches and has better flatness, thereby reducing the risk of short circuits and breaks in the touch leads 15 due to metal residue.

[0125] The driving backplate 11 also includes: peripheral traces 115 distributed in the non-display area A2, the orthographic projection of the peripheral traces 115 on the substrate 111 overlaps with the orthographic projection of the first sub-groove K11 on the substrate 111, and the peripheral traces 115 are insulated from the touch leads 15.

[0126] In this application, the peripheral trace 115 is a trace disposed around the periphery of the display area. For example, the peripheral trace 115 can be a cathode trace (VSS). To clearly illustrate the touch lead 15 and the support portion 112, Figure 14 only shows a portion of the boundary of the cathode trace. The boundary of the peripheral trace 115 is located outside the boundary of the first sub-recess K11. This ensures that the first planarization layer 114a can cover the boundary of the peripheral trace 115 to prevent corrosion of the peripheral trace. For example, the distance between the boundary of the peripheral trace 115 and the boundary of the first sub-recess K11 can be 5 micrometers to 15 micrometers, for example, 10 micrometers.

[0127] For region Q1, the extension direction of the left boundary of the first sub-recess K11 intersects the extension direction of the touch lead 15. This is determined based on the boundary of the peripheral trace 115, ensuring that the first planarization layer 114a covers the boundary of the peripheral trace 115. For region Q2, since the peripheral trace 115 needs to be connected here, the right boundary of the first sub-recess K11 extends beyond the area where the touch lead 15 is located and the area where the support portion 112 is located. For region Q3, since a section of the touch lead 15 away from the boundary of the encapsulation layer 13 is already outside the mask boundary and will not be affected by mask scraping, it does not need to overlap with the orthographic projection of the first sub-recess K11. Therefore, a portion of the touch lead 15 can be located outside the lower boundary of the first sub-recess K11.

[0128] In addition, the first planarization layer 114a serves as an insulator between the first source-drain layer 118b and the second source-drain layer 118c. Therefore, the location of the first sub-groove K11 that penetrates the first planarization layer 114a also needs to take into account the position of the traces in the first source-drain layer 118b to ensure that the first planarization layer 114a can cover the boundary of the first source-drain layer 118b to provide insulation protection.

[0129] It should be noted that Figure 14 only illustrates one possible arrangement of the first sub-groove K11, but this application is not limited to this. For example, when the peripheral trace 115 does not interfere with the area where the touch lead 15 is disposed, that is, when the overlapping area of ​​the peripheral trace 115 is not in the area where the touch lead 15 is disposed, the first sub-groove K11 may only overlap with at least a portion of the orthographic projection of the touch lead 15. In this way, the orthographic projection of the first sub-groove K11 on the substrate 111 can be a rectangle.

[0130] In addition, since there is an organic groove in the area between the outer boundary of the encapsulation layer 13 and the outer boundary of the barrier 113 to form the barrier 113, and the organic groove also penetrates the first planarization layer 114a, the first sub-groove K11 and the organic groove can be connected.

[0131] The support portion 112 includes a first portion 1121 and a second portion 1122. The orthographic projection of the first portion 1121 onto the substrate 111 is distributed outside the orthographic projection of the first sub-groove K11 onto the substrate 111, and the orthographic projection of the second portion 1122 onto the substrate 111 is distributed within the orthographic projection of the first sub-groove K11 onto the substrate 111. The first portion 1121 can ensure an increased height difference between the area where the support portion 112 is located and the area where the touch lead 15 needs to be set, thereby further improving the anti-scratch effect of the support portion 112.

[0132] Since the first part 1121 and the second part 1122 are distributed in different areas, when the first part 1121 and the second part 1122 are manufactured using the same patterning process, for example, when the first part 1121 and the second part 1122 are both manufactured in the same layer as the support column 116 and are made of the same material, there may be a height difference between the upper surface of the first part 1121 and the upper surface of the second part 1122, which is the thickness of the first flat layer 114a.

[0133] Optionally, the driving backplate 11 further includes: a pixel definition layer 119 located on the side of the plurality of stacked organic layers 114 facing away from the substrate 111, and a plurality of support pillars 116 located on the side of the pixel definition layer 119 facing away from the substrate 111, the support pillars 116 being located between the orthographic projections of two adjacent light-emitting devices 12 on the driving backplate 11.

[0134] The first part 1121 is disposed on the same layer as the pixel definition layer 119 and is made of the same material, while the second part 1122 is disposed on the same layer as the support column 116 and is made of the same material. By setting the first part 1121 and the second part 1122 to be manufactured using different patterning processes, the thicknesses of the first part 1121 and the second part 1122 can be different.

[0135] It should be noted that the first part 1121 has the same thickness as the auxiliary pixel definition layer (HPDL). The auxiliary pixel definition layer is a structure formed using the same patterning process as the pixel definition layer 119. The thickness of the auxiliary pixel definition layer is less than the thickness of the pixel definition layer 119, and the thickness of the auxiliary pixel definition layer is less than the thickness of the support column 116. This can reduce the height difference between the first part 1121 and the second part 1122, thereby improving the stability of the support effect of the support part 112.

[0136] In this embodiment, the first part 1121 and the second part 1122 can also be manufactured in the same patterning process using a halftone mask. By adjusting the light transmittance of each area of ​​the halftone mask, the etching degree of the corresponding areas of the first part 1121 and the second part 1122 can be controlled, thereby forming the first part 1121 and the second part 1122 with different thicknesses, which can improve the stability of the support effect of the support part 112.

[0137] For the second scenario, please refer to Figures 12, 16, and 17. Figure 16 is a partial structural schematic diagram of another display panel provided in an embodiment of this application (the first and third planarization layers are not shown in Figure 16 to clearly illustrate the first groove, but this embodiment of the application does not limit this). Figure 17 is a cross-sectional structural schematic diagram of the display panel provided in Figure 16 (Figure 17 can be a cross-sectional structural schematic diagram of the display panel provided in Figure 16 at B6-B6). The multiple stacked organic layers 114 include: a second planarization layer 114b located on the side of the first planarization layer 114a facing away from the substrate 111. The first groove K1 further includes: a second sub-groove K12 penetrating the second planarization layer 114b, and the second sub-groove K12 is connected to the first sub-groove K11.

[0138] In this configuration, at least a portion of the touch lead 15 has its orthographic projection on the substrate 111 located within the orthographic projection of the second sub-groove K12 on the substrate 111, while the orthographic projection of the support portion 112 on the substrate 111 is entirely outside the orthographic projection of the second sub-groove K12 on the substrate 111. This cooperation between the second sub-groove K12 and the first sub-groove K11 further reduces the risk of scratches on the area where the touch lead 15 is located, improving the reliability of the display panel. For example, the orthographic projection of the second sub-groove K12 on the substrate 111 can be rectangular.

[0139] In addition, when there is no interference between the peripheral wiring 115 and the area where the touch lead 15 is set, that is, when the outgoing overlap area of ​​the peripheral wiring 115 is not in the area where the touch lead 15 is set, the first groove K1 can also penetrate only the second flat layer 114b.

[0140] Since planarization layer 114 also includes a third planarization layer 114c, the third planarization layer 114c can also be provided with sub-grooves. For details, please refer to the embodiments of the first sub-grooves K11 and the second sub-grooves K12 described above, which will not be elaborated here. It should be noted that the sub-grooves in the third planarization layer 114c need to avoid the peripheral traces 115 to ensure that the peripheral traces 115 are insulated from the touch leads 15, and the sub-grooves in the third planarization layer 114c need to ensure that the boundary of the third source-drain layer 118d is covered by the third planarization layer 114c.

[0141] In the first exemplary embodiment, Figures 13 to 17 all use a strip-shaped support portion as an example, but this application is not limited to this. The block-shaped support portion can also be combined with the embodiment of providing the first groove, which will not be described in detail here.

[0142] In a second exemplary embodiment, the touch leads can be transferred to the lower layer to further reduce the risk of mask scratches.

[0143] Please refer to Figures 12, 18, and 19. Figure 18 is a partial structural schematic diagram of another display panel provided in an embodiment of this application, and Figure 19 is a cross-sectional structural schematic diagram of the display panel provided in Figure 18 (Figure 19 may be a cross-sectional structural schematic diagram of the display panel provided in Figure 18 at point B7-B7). The touch lead 15 includes: a first lead segment 151 and a second lead segment 152 connected to each other. The first lead segment 151 is closer to the display area than the second lead segment 152. The first lead segment 151 can be distributed within the area enclosed by the outer boundary of the encapsulation layer 13. Compared to the first lead segment 151, the area where the second lead segment 152 is located is more easily scratched by the mask.

[0144] The first lead segment 151 is disposed in the same layer as the touch electrode layer 14 and is made of the same material, while the second lead segment 152 is disposed in a different layer from the touch electrode layer 14. In this way, by transferring the second lead segment 152, which is located in an area easily scratched by the mask, to a different layer, the second lead segment 152 is not distributed on the film layer that is uneven due to scratching, thus avoiding defects such as broken wires or short circuits.

[0145] Optionally, please refer to Figures 12, 18, and 20. Figure 20 is a schematic cross-sectional view of another display panel provided in Figure 18 (Figure 20 may be a schematic cross-sectional view of the display panel provided in Figure 18 at point B8-B8). The driving backplate 11 includes a substrate 111 and an insulating layer located on one side of the substrate 111. In a direction perpendicular to the substrate 111, the insulating layer is located between a first lead segment 151 and a second lead segment 152, and the insulating layer covers the second lead segment 152. The insulating layer has a first via H1, through which the first lead segment 151 overlaps with the second lead segment 152.

[0146] In this application, the insulating layer can be a third planarization layer 114c. This allows the second lead segment 152 to be disposed in the same layer and made of the same material as the third source-drain layer 118d. Therefore, when forming the encapsulation layer 13, the second lead segment 152 is protected by the third planarization layer 114c, preventing short circuits or breaks in the second lead segment 152 even if scratched. The support portion 112 also reduces the risk of the mask scraping the third planarization layer 114c, preventing the second lead segment 152 from being exposed. Furthermore, when the insulating layer is the third planarization layer 114c, the overlap between the first lead segment 151 and the second lead segment 152 is less difficult, facilitating manufacturing.

[0147] In addition, if there is sufficient space in the first source-drain layer 118b and the second source-drain layer 118c, the second lead segment 152 can also be transferred to the first source-drain layer 118b or the second source-drain layer 118c. In this case, the insulating layer can be at least one of the first planarization layer 114a, the second planarization layer 114b and the third planarization layer 114c.

[0148] Optionally, the touch lead 15 further includes a third lead segment 153 connected to the second lead segment 152, wherein the third lead segment 153 is further away from the display area than the second lead segment 152. The third lead segment 153 is disposed in the same layer as the touch electrode layer 14 and is made of the same material. The insulating layer has a second via H2, and the third lead segment 153 overlaps with the second lead segment 152 through the second via H2.

[0149] The third lead segment 153 can be distributed outside the outer boundary of the mask, which ensures that areas prone to mask scratches will not affect the touch lead 15. For example, in the extension direction of the touch lead 15, the distance between the outer boundary of the mask and the outer boundary of the encapsulation layer 13 is greater than 60 micrometers.

[0150] In this embodiment, if there is sufficient wiring space in the third source-drain layer 118d, it is not necessary to set the third lead segment 153 to transfer back to the touch electrode layer 14, so as to facilitate manufacturing.

[0151] In the second exemplary embodiment, Figures 18 to 20 all use a strip-shaped support portion as an example, but this application is not limited to this. The block-shaped support portion can also be combined with an embodiment that provides touch leads to the lower layer, which will not be described in detail here.

[0152] In this embodiment, besides the mask used to manufacture the encapsulation layer being prone to scratching the driving backplate, the mask used to manufacture the cathode layer is also prone to scratching the driving backplate. Please refer to Figures 2, 12, 21, and 22. Figure 21 is a partial enlarged view of the display panel provided in Figure 2 (Figure 21 is a partial enlarged view of the display panel provided in Figure 2 at C2). Figure 22 is a cross-sectional structural diagram of the display panel provided in Figure 21 (Figure 22 can be a cross-sectional structural diagram of the display panel provided in Figure 21 at B9-B9). The display panel 10 also includes a crack detection trace 16, which is distributed in the non-display area A2. The crack detection trace 16 is disposed in the same layer as the touch electrode layer 14 and is made of the same material.

[0153] The edge area of ​​the display panel 10 is prone to cracking during manufacturing, which may lead to display abnormalities due to crack deterioration during reliability testing. A crack detection trace 16 (Panel Crack Detect, PCD) can be used to detect the presence of cracks. The crack detection trace 16 can be distributed around the display area A1. In one possible implementation, the resistance value of the crack detection trace 16 can be measured, and the crack condition of the display panel 10 can be determined based on the measured resistance value. For example, when the resistance value is significantly higher than normal, the crack detection trace 16 may break due to a crack, and the display panel 10 may exhibit display abnormalities, such as black spots. In another possible implementation, the crack detection trace 16 can be electrically connected to the touch electrode layer 14, and the crack condition of the display panel 10 can be determined based on whether the capacitance value of the touch electrode layer 14 is abnormal.

[0154] The crack detection trace 16 is located on the outside of the cathode layer 123. During the manufacturing process of the cathode layer 123 through the mask plate, the mask plate is prone to scraping the exposed organic layer 114 between the second groove K2 and the outer boundary of the cathode layer 123, resulting in poor flatness of the organic layer 114. This may cause the crack detection trace 16 to short-circuit or break, thus failing to achieve the crack detection function or resulting in a large error in crack detection.

[0155] The drive backplate 11 has a second groove K2 distributed around the display area A1, the second groove K2 being located between at least one baffle 113 and the display area A1. The second groove K2 serves to form the baffle 113 and allows any overflowing organic encapsulation layer material to remain in the second groove K2, preventing further overflow.

[0156] At least a portion of the crack detection trace 16 is located within the second groove K2. Since the second groove K2 has a certain depth and the retaining wall 113 also supports the mask plate, the bottom of the second groove K2 is less likely to be scratched by the mask plate, thereby improving the reliability of the crack detection trace 16 located within the second groove K2.

[0157] It should be noted that Figure 21 only illustrates one exemplary distribution of crack detection traces 16. The non-display area A2 includes four rounded corner regions and straight edge regions between the rounded corner regions. The crack detection traces 16 distributed in the straight edge regions are located within the second groove K2, while the crack detection traces 16 distributed in the rounded corner regions are located between the second groove K2 and the outer boundary of the cathode layer 123. This is because the wiring space in the rounded corner regions is small, and the crack detection traces 16 need to extend outwards. Therefore, if the wiring space is sufficient, some of the crack detection traces 16 in the rounded corner regions can also be placed within the second groove K2, for example, in the two rounded corner regions further away from the bonding area A21.

[0158] Optionally, at least one barrier 113 includes: a first barrier 113a and a second barrier 113b, wherein the first barrier 113a is closer to the display area than the second barrier 113b, and the second groove K2 is located between the first barrier 113a and the display area A1.

[0159] The barrier 113 can be formed by stacking several organic layers 114 in the drive backplane, such as at least one of a first planarization layer 114a, a second planarization layer 114b, a third planarization layer 114c, and a pixel definition layer 119. To ensure the blocking effect of the barrier 113, the barrier 113 is generally quite thick. Therefore, placing the crack detection trace 16 in the second groove K2 between the first barrier 113a and the display area A1 can avoid the problem of ramping when the crack detection trace 16 overlaps with the orthographic projection of the barrier 113, thus reducing the risk of defects in the crack detection trace.

[0160] It should be noted that the embodiments shown in Figures 21 and 22 can also be combined with any of the above embodiments, which will not be elaborated further here.

[0161] In summary, this application provides a display panel in which a driving backplane is provided with a support portion. Since the support portion is distributed on at least one side of the touch leads, and its thickness is greater than the thickness of the touch leads, the support portion can be used to elevate the mask during the deposition of the encapsulation layer on the driving backplane using a photomask. This reduces the risk of the photomask scraping against areas of the driving backplane where touch leads need to be located, thereby improving the flatness of these areas. This ensures that the touch leads are distributed on relatively flat areas of the driving backplane, preventing short circuits or broken wires and improving the reliability of the display panel.

[0162] On the other hand, this application also provides a display device, which includes a power supply component and a display panel provided in any of the above embodiments. The power supply component can supply power to the display panel. The display device can be any device that includes a display function. For example, the display device can be any product or component with a display function, such as a mobile phone, tablet computer, television, monitor, laptop computer, digital photo frame, or navigator.

[0163] Since the display device includes the display panel provided in the above embodiments, the display device can also have similar effects, that is, it can make the display device more reliable.

[0164] In this application, the term "at least one of A and B" merely describes the relationship between related objects, indicating that three relationships can exist. For example, "at least one of A and B" can represent: A existing alone, A and B existing simultaneously, and B existing alone. Similarly, "at least one of A, B, and C" indicates that seven relationships can exist, representing: A existing alone, B existing alone, C existing alone, A and B existing simultaneously, A and C existing simultaneously, C and B existing simultaneously, and A, B, and C existing simultaneously. Likewise, "at least one of A, B, C, and D" indicates that fifteen relationships can exist, representing: A existing alone, B existing alone, C existing alone, D existing alone, A and B existing simultaneously, A and C existing simultaneously, A and D existing simultaneously, C and B existing simultaneously, D and B existing simultaneously, C and D existing simultaneously, A, B, and C existing simultaneously, A, B, and D existing simultaneously, A, C, and D existing simultaneously, and A, B, C, and D existing simultaneously.

[0165] It should be noted that the dimensions of layers and regions may be exaggerated in the accompanying drawings for clarity. Furthermore, it is understood that when an element or layer is referred to as being "on" another element or layer, it can be directly on the other element, or there may be intermediate layers. Additionally, it is understood that when an element or layer is referred to as being "below" another element or layer, it can be directly below the other element, or there may be more than one intermediate layer or element. Furthermore, it is also understood that when a layer or element is referred to as being "between" two layers or two elements, it can be the only layer between the two layers or two elements, or there may be more than one intermediate layer or element. Similar reference numerals throughout indicate similar elements.

[0166] In this application, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "multiple" means two or more, unless otherwise expressly defined.

[0167] The above description is merely an optional embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A display panel, characterized in that, The display panel has a display area and a non-display area located around the display area. The non-display area includes a bonding area, and the boundary of the display area closer to the bonding area is a first boundary. The display panel includes: a driving backplate, a light-emitting device, a touch electrode layer, and multiple touch leads. The drive backplate has a support portion and at least one baffle. The support portion is at least distributed within the non-display area, and the baffle is located within the non-display area and distributed around the display area. The light-emitting device is located on one side of the driving back plate, and the touch electrode layer is located on the side of the light-emitting device away from the driving back plate. The plurality of touch leads are all electrically connected to the touch electrode layer. The extension direction of the touch leads intersects the extension direction of the first boundary, and at least a portion of the touch leads in the orthogonal projection on the drive back plate is located between the at least one retaining wall and the bonding area. The support portion is distributed on at least one side of the touch lead in a first direction parallel to the extension direction of the first boundary, and the thickness of the support portion is greater than the thickness of the touch lead in a direction perpendicular to the drive back plate.

2. The display panel according to claim 1, characterized in that, The multiple touch leads are divided into at least one group, and one group of touch leads includes multiple touch leads arranged continuously in the first direction. The number of support portions is multiple, and at least one support portion is distributed on both sides of the group of touch leads that are opposite to each other in the first direction.

3. The display panel according to claim 2, characterized in that, The plurality of support portions include: at least two strip-shaped support portions, the extending direction of the strip-shaped support portions being parallel to the extending direction of the touch leads, and a group of the touch leads being distributed between the two strip-shaped support portions in the first direction.

4. The display panel according to claim 3, characterized in that, The display panel further includes: virtual leads, which are separately disposed from the touch electrode layer, and the extension direction of the virtual leads is parallel to the extension direction of the touch leads. The virtual leads and the touch leads are disposed in the same layer and are made of the same material. The virtual leads are distributed in the first direction between a group of touch leads and the adjacent strip support portion.

5. The display panel according to claim 4, characterized in that, The spacing between the virtual lead and the adjacent strip support in the first direction is in the range of 20 micrometers to 100 micrometers.

6. The display panel according to claim 3, characterized in that, The plurality of support portions further include: at least one auxiliary support portion distributed between two adjacent touch leads; The auxiliary support portion is in the form of a strip or a block.

7. The display panel according to claim 6, characterized in that, When the auxiliary support is strip-shaped, the extending direction of the auxiliary support is parallel to the extending direction of the strip-shaped support. Alternatively, if the auxiliary support portion is block-shaped, multiple auxiliary support portions are distributed between two adjacent touch leads, and the multiple auxiliary support portions are evenly distributed along the extension direction parallel to the touch leads.

8. The display panel according to claim 2, characterized in that, The plurality of support portions include: a plurality of block-shaped support portions, the plurality of block-shaped support portions being arranged in an array of multiple columns along the first direction, and a group of touch leads being distributed in the first direction between two columns of block-shaped support portions.

9. The display panel according to claim 8, characterized in that, The multiple rows of block-shaped support portions and the multiple touch leads are arranged alternately in the first direction.

10. The display panel according to claim 9, characterized in that, For the two columns of block-shaped support portions distributed on both sides of the same touch lead, a plurality of block-shaped support portions in one column are staggered with a plurality of block-shaped support portions in the other column in a direction perpendicular to the extension of the touch lead.

11. The display panel according to any one of claims 1-10, characterized in that, The driving backplate includes: a substrate, and a plurality of stacked organic layers located on one side of the substrate, wherein a portion of the driving backplate located in the non-display area has a first groove penetrating at least one of the organic layers, and at least a portion of the touch leads are distributed within the first groove. Wherein, at least a portion of the support portion has its orthographic projection on the substrate located outside the orthographic projection of the first groove on the substrate.

12. The display panel according to claim 11, characterized in that, The plurality of stacked organic layers include: a first planar layer, the first groove including: a first sub-groove penetrating the first planar layer, and at least a portion of the touch leads having an orthographic projection on the substrate located within the orthographic projection of the first sub-groove on the substrate; The driving backplate further includes: peripheral traces distributed in the non-display area, wherein the orthographic projection of the peripheral traces on the substrate overlaps with the orthographic projection of the first sub-groove on the substrate, and the peripheral traces are insulated from the touch leads; The support portion includes a first part and a second part, wherein the orthographic projection of the first part on the substrate is distributed outside the orthographic projection of the first sub-groove on the substrate, and the orthographic projection of the second part on the substrate is distributed within the orthographic projection of the first sub-groove on the substrate.

13. The display panel according to claim 12, characterized in that, The driving backplate further includes: a pixel definition layer located on the side of the plurality of stacked organic layers facing away from the substrate, and a plurality of support pillars located on the side of the pixel definition layer facing away from the substrate, wherein the support pillars are located between the orthographic projections of two adjacent light-emitting devices on the driving backplate. The first part is disposed on the same layer as the pixel definition layer and is made of the same material, and the second part is disposed on the same layer as the support column and is made of the same material.

14. The display panel according to claim 12, characterized in that, The plurality of stacked organic layers include: a second planar layer located on the side of the first planar layer opposite to the substrate; the first groove further includes: a second sub-groove penetrating the second planar layer; the second sub-groove is connected to the first sub-groove. Wherein, at least a portion of the touch lead is projected onto the substrate within the projection of the second sub-groove onto the substrate, and the projection of the support portion onto the substrate is entirely distributed outside the projection of the second sub-groove onto the substrate.

15. The display panel according to any one of claims 1-10, characterized in that, The touch lead includes: a first lead segment and a second lead segment connected to each other, wherein the first lead segment is closer to the display area than the second lead segment; The first lead segment is disposed in the same layer as the touch electrode layer and is made of the same material, while the second lead segment is disposed in a different layer from the touch electrode layer.

16. The display panel according to claim 15, characterized in that, The drive backplane includes: a substrate, and an insulating layer located on one side of the substrate; in a direction perpendicular to the substrate, the insulating layer is located between the first lead segment and the second lead segment, and the insulating layer covers the second lead segment; The insulating layer has a first via, through which the first lead segment overlaps with the second lead segment.

17. The display panel according to claim 16, characterized in that, The touch lead further includes a third lead connected to the second lead segment, wherein the third lead segment is further away from the display area relative to the second lead segment; The third lead segment is disposed in the same layer as the touch electrode layer and is made of the same material. The insulating layer has a second via, and the third lead segment overlaps with the second lead segment through the second via.

18. The display panel according to any one of claims 1-10, 12-14, characterized in that, The display panel further includes: crack detection traces, which are distributed in the non-display area and are disposed in the same layer as the touch electrode layer and are made of the same material; The drive backplate has a second groove distributed around the display area, the second groove being located between the at least one baffle and the display area; At least a portion of the crack detection trace is located within the second groove.

19. The display panel according to claim 18, characterized in that, The at least one retaining wall includes: a first retaining wall and a second retaining wall, wherein the first retaining wall is closer to the display area than the second retaining wall, and the second groove is located between the first retaining wall and the display area.

20. The display panel according to any one of claims 1-10, 12-14, characterized in that, The display panel further includes: a first inorganic encapsulation layer, a first organic encapsulation layer, and a second inorganic encapsulation layer stacked together; The first organic encapsulation layer is located within the area enclosed by the barrier wall, and the outer boundaries of the orthographic projections of the first inorganic encapsulation layer and the second inorganic encapsulation layer on the substrate surround the periphery of the orthographic projections of the barrier wall on the substrate. The portion of the encapsulation layer distributed in the non-display area is projected onto the drive backplate and overlaps with the support portion.

21. A display device, characterized in that, include: A power supply component, and a display panel electrically connected to the power supply component, the display panel comprising: the display panel according to any one of claims 1 to 20.

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