Display panel and display device

Abstract

The application discloses a display panel and a display device. The display panel comprises a display area and a first frame area arranged along a first direction, the first frame area is provided with a binding area; a substrate; a first isolation structure arranged in the display area and arranged on one side of the substrate; the first isolation structure is provided with a plurality of first isolation openings, and a light emitting element is arranged in the first isolation opening; and a connecting part arranged in the first frame area, one end of the connecting part is electrically connected with the isolation structure in the display area. The application can reduce the frame of the display panel.

Description

Display panel and display device Technical Field

[0001] This invention relates to the field of display technology, and more particularly to a display panel and display device. Background Technology

[0002] With the development of display technology, the application of display panels is becoming more and more widespread, and the requirements for display panels are correspondingly becoming higher and higher.

[0003] However, in related technologies, the display panel has a large bezel, which limits its further application. Summary of the Invention

[0004] The present invention provides a display panel and a display device to reduce the bezel of the display panel.

[0005] According to one aspect of the present invention, a display panel is provided, the display panel comprising:

[0006] A display area and a first border area are arranged along a first direction, and the first border area is provided with a binding area;

[0007] A substrate; a first isolation structure disposed in the display area and on one side of the substrate; the first isolation structure is provided with a plurality of first isolation openings, and a light-emitting element is disposed in the first isolation opening;

[0008] A connecting part is disposed in the first frame area, and one end of the connecting part is electrically connected to the first isolation structure.

[0009] Optionally, the other end of the connecting portion extends to the binding area; the connecting portion includes:

[0010] A second isolation structure is disposed in the first frame area and on one side of the substrate; at least one first connecting lead is provided, the first end of the first connecting lead overlaps with at least a portion of the second isolation structure, and the second end of the first connecting lead extends to the bonding area;

[0011] Preferably, the first connecting lead extends along the first direction;

[0012] Preferably, the two first connecting leads are arranged along the second direction, and the first direction intersects the second direction;

[0013] Preferably, the second isolation structure is disposed on the same layer as the first isolation structure;

[0014] Preferably, the second isolation structure is electrically connected to the first isolation structure;

[0015] Preferably, the second isolation structure does not have an isolation opening;

[0016] Preferably, the orthographic projection of the second isolation structure on the substrate covers at least a portion of the orthographic projection of the first isolation structure on the substrate;

[0017] Preferably, the orthographic projection of the first isolation structure on the substrate covers at least a portion of the orthographic projection of the second isolation structure on the substrate; and along the first direction, the orthographic projection of the first isolation structure on the substrate and the orthographic projection of the second isolation structure on the substrate are at least partially misaligned.

[0018] Optionally, the connection portion further includes at least one second connection lead extending along the second direction, each of the second connection leads being electrically connected to at least two of the first connection leads;

[0019] Preferably, the connecting portion further includes at least one third connecting lead extending along the first direction, the first end of the third connecting lead overlapping at least part of the second isolation structure, and the second end of the third connecting lead being electrically connected to the second connecting lead;

[0020] Preferably, the first connecting lead, the second connecting lead, and the third connecting lead are electrically connected in a mesh structure.

[0021] Optionally, the second connecting lead is located between the bonding area and the display area, and / or the third connecting lead is located between the two first connecting leads, and / or the first connecting leads and the third connecting lead are evenly distributed in the second direction.

[0022] Optionally, at least a portion of at least two of the first connecting lead, the second connecting lead, and the third connecting lead are disposed on the same layer;

[0023] Preferably, the first connecting lead, the second connecting lead, and the third connecting lead are at least partially disposed in the same layer.

[0024] Optionally, the substrate includes a substrate and a driving circuit layer disposed on the substrate. The driving circuit layer includes a preset metal layer close to the first isolation structure. The first connection lead, the second connection lead, and the third connection lead all include portions located in the preset metal layer. The portion of the first connection lead located in the preset metal layer overlaps with the second isolation structure.

[0025] Preferably, the driving circuit layer includes an active layer, a first metal layer, a second metal layer, and a third metal layer sequentially stacked on the substrate, wherein the preset metal layer is the third metal layer;

[0026] Preferably, the driving circuit layer further includes a fourth metal layer, and the preset metal layer is the fourth metal layer;

[0027] Preferably, the driving circuit layer further includes a fifth metal layer, and the preset metal layer is the fifth metal layer.

[0028] Optionally, the second isolation structure is connected to the first connection lead via a via;

[0029] Preferably, each of the first connecting leads is connected to the second isolation structure through at least two vias arranged along the first direction;

[0030] Preferably, along the thickness direction of the display panel, at least one insulating layer is provided between the first connecting lead and the second isolation structure, and the via is formed on the insulating layer.

[0031] Optionally, the connecting portion further includes a third isolation structure located in the first frame area; the third isolation structure is provided with a third isolation opening, and a dummy light-emitting element is provided in the third isolation opening; the third isolation structure is located between the via and the display area;

[0032] Preferably, the third isolation structure is disposed on the same layer as the first isolation structure;

[0033] Preferably, the third isolation structure is electrically connected to the first isolation structure;

[0034] Preferably, the third isolation structure, the second isolation structure, and the first isolation structure are integrally formed;

[0035] Preferably, the third isolation structure is connected to the first isolation structure in a mesh-like manner.

[0036] Optionally, the display panel further includes at least one second border area; the second border area is arranged with the display area along a second direction, and / or, along the first direction, the second border area and the first border area are located on opposite sides of the display area; wherein, the second direction intersects the first direction;

[0037] The second border area does not have the connection portion that electrically connects the first isolation structure and the binding area;

[0038] Preferably, along the thickness direction of the display panel, the orthographic projection of the connecting portion is located outside the orthographic projection of the second frame area.

[0039] Optionally, the display panel further includes a fourth isolation structure located in the second frame area, the fourth isolation structure having a fourth isolation opening; a dummy light-emitting element is disposed within the fourth isolation opening;

[0040] Preferably, the fourth isolation structure is on the same layer as the first isolation structure;

[0041] Preferably, the fourth isolation structure is electrically connected to the first isolation structure;

[0042] Preferably, the fourth isolation structure is connected to the first isolation structure in a mesh-like manner.

[0043] Optionally, the substrate includes a substrate and a driving circuit layer disposed on the substrate, wherein a plurality of dummy pixel driving circuits are formed in the portion of the driving circuit layer located in the second frame area; each dummy pixel driving circuit corresponds to at least one dummy light-emitting element; and the dummy pixel circuit is insulated from the corresponding dummy light-emitting element.

[0044] Optionally, the substrate includes a substrate and a driving circuit layer disposed on the substrate. The portion of the driving circuit layer located in the display area is provided with a plurality of pixel driving circuits, and each pixel driving circuit is connected to at least one of the light-emitting elements.

[0045] Preferably, the portion of the driving circuit layer located in the first frame area is provided with multiple power signal leads, one end of which is electrically connected to the display area, and the other end of which extends to the bonding area.

[0046] Optionally, the isolation structure includes a support portion and a crown portion; along the thickness direction of the display panel, the orthographic projection of the support portion on the substrate is located within the orthographic projection of the crown portion on the substrate; wherein, the support portion is a conductive structure.

[0047] Optionally, the display panel further includes at least one dam surrounding the display area, the dam having an opening.

[0048] Optionally, the display panel further includes a plurality of first electrodes disposed within the isolation opening and located on the side of the light-emitting element away from the substrate, wherein the first electrodes overlap with the support portion.

[0049] According to another aspect of the present invention, a display panel is provided, the display panel comprising:

[0050] A display area and a first border area are arranged along a first direction, and the first border area is provided with a binding area;

[0051] substrate;

[0052] A first isolation structure is disposed in the display area and on one side of the substrate; the first isolation structure is provided with a plurality of first isolation openings, and a light-emitting element is disposed in the first isolation opening;

[0053] A connecting portion, one end of which is electrically connected to the portion of the first isolation structure located in the display area, wherein the connecting portion is located only in the first border area.

[0054] Optionally, the other end of the connecting portion extends to the binding area; the connecting portion includes:

[0055] The second isolation structure is disposed in the first frame area and on one side of the substrate;

[0056] At least one first connecting lead, a first end of the first connecting lead overlapping at least a portion of the second isolation structure, and a second end of the first connecting lead extending to the bonding area;

[0057] Preferably, the first connecting lead extends along the first direction;

[0058] Preferably, the two first connecting leads are arranged along the second direction, and the first direction intersects the second direction;

[0059] Preferably, the second isolation structure is disposed on the same layer as the first isolation structure;

[0060] Preferably, the second isolation structure is electrically connected to the first isolation structure;

[0061] Preferably, the second isolation structure does not have an isolation opening;

[0062] Preferably, the orthographic projection of the second isolation structure on the substrate covers at least a portion of the orthographic projection of the first isolation structure on the substrate;

[0063] Preferably, the orthographic projection of the first isolation structure on the substrate covers at least a portion of the orthographic projection of the second isolation structure on the substrate; and along the first direction, the orthographic projection of the first isolation structure on the substrate and the orthographic projection of the second isolation structure on the substrate are at least partially misaligned.

[0064] Optionally, the second isolation structure is connected to the first connection lead via a via;

[0065] Preferably, along the thickness direction of the display panel, at least one insulating layer is provided between the first connecting lead and the second isolation structure, and the via is formed on the insulating layer;

[0066] Preferably, the connecting portion further includes a third isolation structure, the third isolation structure being located in the first frame area; the third isolation structure is provided with a third isolation opening, and a dummy light-emitting element is provided within the third isolation opening; the third isolation structure is located between the via and the display area;

[0067] Preferably, the third isolation structure is disposed on the same layer as the first isolation structure;

[0068] Preferably, the third isolation structure is electrically connected to the first isolation structure;

[0069] Preferably, the third isolation structure, the second isolation structure, and the first isolation structure are integrally formed;

[0070] Preferably, the third isolation structure is connected to the first isolation structure in a mesh-like manner.

[0071] Optionally, the display panel further includes at least one second border area; the second border area is arranged with the display area along a second direction, and / or, along the first direction, the second border area and the first border area are located on opposite sides of the display area; wherein, the second direction intersects the first direction;

[0072] The second border area does not have the connection portion that electrically connects the first isolation structure and the binding area;

[0073] Preferably, along the thickness direction of the display panel, the orthographic projection of the connecting portion is located outside the orthographic projection of the second frame area.

[0074] According to another aspect of the present invention, a display device is provided, the display device comprising the display panel as described above.

[0075] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0076] To more clearly illustrate the technical solutions in the embodiments of the present invention, 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0077] Figure 1 is a schematic diagram of the structure of a display panel provided in an embodiment of the present invention;

[0078] Figure 2 is a cross-sectional view of Figure 1 along the A1A2 direction;

[0079] Figure 3 is a cross-sectional view of Figure 1 along the A3A4 direction;

[0080] Figure 4 is a partial enlarged view of Figure 1;

[0081] Figure 5 is another enlarged view of a portion of Figure 1;

[0082] Figure 6 is another enlarged view of a portion of Figure 1;

[0083] Figure 7 is another enlarged view of a portion of Figure 1;

[0084] Figure 8 is a schematic diagram of the circuit structure of a pixel driving circuit provided in an embodiment of the present invention;

[0085] Figure 9 is a schematic diagram of the structure of a display device provided in an embodiment of the present invention. Detailed Implementation

[0086] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0087] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0088] As mentioned earlier, the display panels in related technologies suffer from large bezels. Through extensive research, the inventors discovered that this problem arises because the display panels in these technologies require a first electrode power line to be installed around the display area at the bezel. This first electrode power line connects the first electrode corresponding to the light-emitting element in the display panel to the driver chip bonded to the bonding area. In other words, each bezel area of ​​the display panel requires a first electrode power line, resulting in a large bezel for each bezel area. The first electrode, for example, is a cathode.

[0089] To address the aforementioned technical problems, the present invention proposes the following solutions:

[0090] Figure 1 is a schematic diagram of a display panel according to an embodiment of the present invention, Figure 2 is a cross-sectional view of Figure 1 along the A1A2 direction, and Figure 3 is a cross-sectional view of Figure 1 along the A3A4 direction. Referring to Figures 1 to 3, the display panel includes: a display area AA and a first border area NAA1 arranged along a first direction X, and a bonding area Bon is provided in the first border area NAA1; the display panel also includes a substrate, a first isolation structure SOA, and a connecting portion L; the first isolation structure SOA is disposed in the display area and on one side of the substrate; the first isolation structure SOA forms a plurality of first isolation openings Ap, and a light-emitting element is disposed in the first isolation opening Ap; one end of the connecting portion L is electrically connected to the first isolation structure SOA.

[0091] Specifically, the display panel can be an OLED (Organic Light Emitting Diode) display panel or a Micro-LED (Micro Light Emitting Diode) display panel. The light-emitting elements in the display panel are current-driven devices, requiring a driving current to emit light. A pixel driving circuit is provided in the substrate, providing driving current to the light-emitting elements. In related technologies, the first electrode corresponding to the light-emitting element of the display panel is a single-layer structure, and the first electrode is made of metal. To ensure the light transmittance of the first electrode, its thickness is relatively thin; however, this thinness results in higher resistance. To minimize the voltage difference received by the first electrodes corresponding to each light-emitting element, a connecting portion is provided around the bezel area of ​​the display panel. This connecting portion has low impedance, reducing the voltage difference received by the first electrodes corresponding to each light-emitting element, but this results in larger bezel areas for each display panel. The first electrode, for example, is a cathode.

[0092] In this embodiment, the display panel includes a first isolation structure SOA, which is conductive. The light-emitting elements are disposed within the opening formed by the first isolation structure SOA, meaning the first isolation structure SOA does not block the emitted light from the light-emitting elements. Therefore, the thickness of the first isolation structure SOA can be set relatively thick, and its impedance is also relatively low. Based on this, this embodiment provides a connecting portion L in the first border area NAA1. The connecting portion L can transmit the first electrode voltage transmitted from the bonding area Bon to the first isolation structure SOA in the display area AA, and then transmit it to the first electrode corresponding to each light-emitting element through the first isolation structure SOA in the display area AA. Because the impedance of the first isolation structure SOA is low, the difference in the first electrode voltage received by the first electrode corresponding to each light-emitting element is also small, resulting in better display uniformity of the display panel. Furthermore, in this embodiment, the connecting portion L is only provided in the first border area NAA1, and only the first border area NAA1 has a large size. That is, the connecting portion L only needs to extend along the first direction X within the first border area NAA1, and does not need to be arranged around the entire display area. Therefore, only the first border area NAA1 has a larger size, while the other border areas of the display panel can be set to a smaller size, or no other border areas can be set. Thus, this embodiment can greatly reduce the border of the display panel.

[0093] The technical solution of this embodiment uses a display panel including a display area and a first border area arranged along a first direction, with a bonding area provided in the first border area; the display panel also includes a substrate; a first isolation structure is disposed in the display area and on one side of the substrate; the first isolation structure forms a plurality of first isolation openings, and light-emitting elements are disposed within the first isolation openings; the display panel also includes a connecting portion disposed in the first border area; one end of the connecting portion is electrically connected to the first isolation structure, and the other end extends to the bonding area. The display panel is provided with the first isolation structure, which has a small impedance. The connecting portion is only disposed in the first border area to ensure that the voltage difference received by the first electrode of each light-emitting element in the display panel is small; other border areas do not need to be provided with connecting portions, thus reducing the size of other border areas.

[0094] Optionally, the display panel includes an isolation structure SO, which is disposed on one side of the substrate, and a first isolation structure SOA is the portion of the isolation structure SO located in the display area.

[0095] The composition and preparation of the isolation structure SO are further described in patents PCT / CN2023 / 134518, 202310759370.2, 202310740412.8, 202310707209.0, 202311346196.5, and 202310692671.8 for reference.

[0096] Optionally, referring to Figures 1 to 3, the isolation structure SO includes a support portion SO1 and a crown portion SO2; along the thickness direction of the display panel, the orthographic projection of the support portion SO1 on the substrate lies within the orthographic projection of the crown portion SO2 on the substrate. The support portion SO1 is a conductive structure, and the crown portion SO2 is also a conductive structure. Compared to the first electrode corresponding to the light-emitting element, the support portion SO1 is thicker and has lower impedance.

[0097] Optionally, the display panel includes a display area AA and a border area NAA that at least partially surrounds the display area AA. In this embodiment, the border area NAA completely surrounds the display area AA. The border area NAA includes a first border area NAA1 and at least one second border area. The second border areas are arranged along the second direction Y with the display area AA, and / or, along the first direction X, the second border areas are located on opposite sides of the display area AA. At least one second border area may include a first second border area NAA2, a second second border area NAA3, and a third second border area NAA4. The first second border area NAA2 and the second second border area NAA3 are located on opposite sides of the display area AA along the second direction Y, and the third second border area NAA4 is located on opposite sides of the display area AA along the first direction X. The first direction X intersects the second direction Y. Optionally, the first direction X can be a column direction, and the second direction Y can be a row direction. The second bezel area does not have a connecting portion for connecting the first isolation structure SOA and the bonding area Bon. In other words, along the thickness direction of the display panel, the orthographic projection of the connecting portion is outside the orthographic projection of the second bezel area. That is, the connecting portion L for connecting the first isolation structure SOA and the bonding area Bon is only provided in the first bezel area NAA1. Therefore, fewer traces can be set in the second bezel area, thereby reducing the size of the second bezel area.

[0098] Optionally, the bonding area Bon is used to bond the driver chip. After the driver chip is bonded to the display panel, it is electrically connected to the connection part L to provide the connection part L with the first electrode voltage required by the light-emitting element. The driver chip can be COF (Chip On Film) or COG (Chip On Glass), etc., and this embodiment does not specifically limit it.

[0099] Optionally, continuing to refer to Figures 1 and 2, the other end of the connection portion L extends to the bonding area Bon, specifically, it may be electrically connected to the pads in the bonding area Bon. The connection portion L includes: a second isolation structure SON, wherein the second isolation structure SON can also be understood as the portion of the isolation structure SO located in the first border area NAA1; at least one first connection lead L1, the first end of the first connection lead L1 overlapping with at least a portion of the second isolation structure SON, and the second end of the first connection lead L1 being electrically connected to the bonding area Bon.

[0100] Specifically, in this embodiment, the isolation structure SO is located not only in the display area AA but also in a portion of the first border area NAA1. That is, the isolation structure SO extends from the display area AA into the first border area NAA1. The first connecting lead L1 and the isolation structure SO are located on different layers, thus ensuring electrical connection between the first connecting lead L1 and the isolation structure SO in the thickness direction of the display panel. This facilitates manufacturing and ensures the stability of the electrical connection. It guarantees stable signal transmission in the portion of the display area AA where the connecting lead L1 and the isolation structure SO are located (i.e., the first isolation structure SOA). It should be noted that the connecting lead L1 is not limited to being located in only one layer. The connecting lead L1 can extend to the bonding area Bon in one layer and be electrically connected to the bonding pads, or it can be extended to the bonding area Bon by changing lines in multiple layers and being electrically connected to the bonding pads.

[0101] Optionally, the second isolation structure is on the same layer as the first isolation structure.

[0102] Optionally, the second isolation structure is electrically connected to the first isolation structure, either directly or through the third isolation structure SON1 (the third isolation structure SON1 has a third isolation opening, which will be described later).

[0103] Optionally, the second isolation structure does not have an isolation opening.

[0104] Optionally, in some other embodiments, the isolation structure SO may not overlap with the first border area NAA1, that is, the first border area may not have an isolation structure. The connecting portion L includes at least one first connecting lead L1. One end of the first connecting lead L1 extends into the display area AA and overlaps with the first isolation structure SOA through a via. The other end of the connecting lead L1 is electrically connected to the bonding area Bon. In this embodiment, the isolation structure SO and the first border area NAA1 are misaligned, which can further reduce the size of the first border area NAA1.

[0105] Optionally, Figure 4 is a partially enlarged view of Figure 1, referring to Figure 4. In this embodiment, along the first direction X, the orthographic projection of the second isolation structure SON on the substrate covers at least a portion of the orthographic projection of the first isolation structure SOA on the substrate (i.e., the isolation structure is located in at least a portion of the display area AA). The overall shape of the isolation structure SO is the same as the shape of the display area AA, but its area is larger than that of the display area. With this configuration, along the second direction Y, different first connection leads L1 are electrically connected to the portions located between the first connection leads L1 through the second isolation structure SON. The overall structure composed of the different first connection leads L1 and the isolation structures between them has a low impedance, which helps to reduce the voltage difference of the first electrodes corresponding to different columns of light-emitting elements in the display panel, thereby improving the problem of display unevenness.

[0106] Optionally, Figure 5 is another partially enlarged view of Figure 1, referring to Figure 5. In this embodiment, along the first direction, the orthographic projection of the first isolation structure SOA on the substrate covers at least a portion of the orthographic projection of the second isolation structure SON on the substrate; and along the first direction X, the orthographic projection of the first isolation structure SOA on the substrate and the orthographic projection of the second isolation structure SON on the substrate do not overlap at least partially. In other words, in this embodiment, the second isolation structure SON, relative to the display area AA, is the protrusion corresponding to the first connecting lead L1. In this embodiment, the electrical connection between the first isolation structure SOA and the first connecting lead L1 can be ensured, while the isolation structure in the first frame area NAA1 can be reduced, thereby saving costs.

[0107] Optionally, Figure 6 is another enlarged view of Figure 1. Referring to Figure 6, the connecting portion L includes at least two first connecting leads L1 arranged along the second direction Y; the connecting portion also includes at least one second connecting lead L2 extending along the second direction Y, and each second connecting lead L2 is connected to at least two first connecting leads L1.

[0108] Specifically, in this embodiment, the second connecting lead L2 can electrically connect the corresponding first connecting lead L1 in the second direction Y. This reduces the impedance of the overall structure formed by the first connecting lead L1 and the second connecting lead L2, further reducing the voltage difference between the first electrodes corresponding to different columns of light-emitting elements in the display panel, thereby improving the problem of uneven display.

[0109] Optionally, Figure 7 is another enlarged view of Figure 1, referring to Figure 7. The connecting part L also includes at least one third connecting lead L3 extending along the first direction X. The first end of the third connecting lead L3 overlaps with at least a portion of the second isolation structure SON, and the second end of the third connecting lead L3 is electrically connected to the second connecting lead L2. Optionally, the first connecting lead L1, the second connecting lead L2, and the third connecting lead L3 are connected to form a mesh structure.

[0110] Specifically, in this embodiment, the third connecting lead L3, the second connecting lead L2, and the first connecting lead L1 intersect to form a mesh structure. The mesh structure has low impedance, which can further reduce the voltage difference between the first electrodes corresponding to different columns of light-emitting elements in the display panel, thereby improving the problem of uneven display.

[0111] Optionally, continuing to refer to Figure 7, the second connecting lead L2 is located between the bonding area Bon and the display area AA.

[0112] Specifically, in this embodiment, the first connecting lead L1 extends into the bonding area Bon, but does not exceed the bonding area Bon. The second connecting lead L2 utilizes the area wiring between the bonding area Bon and the display area AA, which can connect the first connecting lead L1 without increasing the size of the first border area NAA1.

[0113] Optionally, referring to Figure 7, the third connecting lead L3 is located between the two first connecting leads L1. Specifically, the two first connecting leads L1 are located at the edges of the first border area NAA1 along the second direction Y, and are used to receive the first electrode voltage signal transmitted by the bonding area. The third connecting lead L3 does not extend to the bonding area Bon, and the third connecting lead L3 can overlap with the portion of the isolation structure located in the first border area NAA1 (i.e., the second isolation structure SON), so that the third connecting lead L3 can also directly transmit signals to the isolation structure. In the portion of the isolation structure located in the display area (i.e., the first isolation structure SOA), both the edge area and the middle area can receive voltage signals from the connecting part, thus further reducing the voltage difference between the areas.

[0114] Optionally, referring back to Figure 7, the first connecting lead L1 and the third connecting lead L3 are evenly distributed in the second direction Y. This arrangement allows the connection to transmit the voltage signal more evenly to the first isolation structure SOA, resulting in a smaller voltage difference between the voltage signals received by different parts of the first isolation structure SOA, thereby further improving the display unevenness problem.

[0115] Optionally, in the above embodiments, at least a portion of at least two of the first connecting lead L1, the second connecting lead L2, and the third connecting lead L3 are disposed on the same layer. For example, both the second connecting lead L2 and the third connecting lead L3 are disposed on the same layer as the portion of the first connecting lead L1 that directly overlaps with the second isolation structure SON. This configuration in this embodiment facilitates the fabrication of electrical connections between the first connecting lead L1, the second connecting lead L2, and the third connecting lead L3, thereby reducing the difficulty and cost of manufacturing the display panel.

[0116] Optionally, referring to Figures 2 and 3, the substrate includes a substrate Sub and a driving circuit layer disposed on the substrate Sub. The driving circuit layer includes a preset metal layer close to the first isolation structure SOA. The first connection lead L1, the second connection lead L2 and the third connection lead L3 each include a portion located in the preset metal layer. The portion of the first connection lead L1 located in the preset metal layer overlaps with the second isolation structure SON.

[0117] Specifically, the substrate Sub can be a rigid substrate, such as glass, sapphire, diamond, or silicon. The substrate Sub can also be a flexible substrate, such as polyimide. Multiple pixel driving circuits are formed within the driving circuit layer, each driving at least one light-emitting element. A buffer layer can also be provided between the substrate Sub and the driving circuit layer. The driving circuit layer contains multiple metal layers, with the preset metal layer being the metal layer closest to the isolation structure among the multiple metal layers. The portion of the first connecting lead used to overlap with the second isolation structure is located in the preset metal layer. The via depth between this portion and the second isolation structure is small, facilitating fabrication. Furthermore, the second connecting lead L2 and the third connecting lead L3 can be further located in the preset metal layer. The preset metal layer has a large amount of free space, while other metal layers will have data line fan-out traces, etc. Therefore, the arrangement in this embodiment will not occupy the space of other metal layers, avoiding the occupation of the area in other metal layers where data line fan-out traces are located.

[0118] Optionally, the driving circuit layer includes an active layer Act, a first metal layer M1, a second metal layer M2, and a third metal layer M3 sequentially stacked on the substrate Sub, with the third metal layer M3 being the default metal layer. Optionally, the driving circuit layer further includes a fourth metal layer M4 disposed on the side of the third metal layer M3 away from the second metal layer M2, with the fourth metal layer being the default metal layer. Optionally, the driving circuit layer further includes a fifth metal layer M5 on the fourth metal layer M4 away from the third metal layer M3, with the fifth metal layer M5 being the default metal layer.

[0119] Specifically, the pixel driving circuit includes at least two transistors and at least one capacitor. The active layer Act in the driving circuit layer is used to set the active structure of the transistors; the first metal layer M1 is used to set the gate of the transistor and the first plate of the capacitor; the second metal layer M2 is used to set the second plate of the capacitor; the third metal layer M3 is used to set the source and drain of the transistors; the fourth metal layer M4 serves as a transition layer, providing a connection between the pixel driving circuit and the second electrode corresponding to the light-emitting element, and can also be used to set the power lines corresponding to the pixel driving circuit; the fifth metal layer M5 can be used to set the data lines, etc. Of course, when the driving circuit layer has other numbers of metal layers, the default metal layer may not be the fifth metal layer. The driving circuit layer also includes a gate insulating layer GI located between the active layer Act and the first metal layer M1, an interlayer insulating layer CI located between the first metal layer M1 and the second metal layer M2, an interlayer dielectric layer ILD located between the second metal layer M2 and the third metal layer M3, an inorganic layer PVX and a first planarization layer PLN1 located between the third metal layer M3 and the fourth metal layer M4, a second planarization layer PLN2 located between the fourth metal layer M4 and the fifth metal layer M5, and a third planarization layer PLN3 covering the fifth metal layer M5. The second electrode is, for example, an anode.

[0120] Optionally, the display panel further includes a pixel definition layer (VPDL), located between the driving circuit layer and the isolation structure SO, and the VPDL forms multiple pixel openings. Each pixel opening corresponds to a first isolation opening, and along the thickness direction of the display panel, the orthographic projection of the first isolation opening onto the substrate Sub lies within the orthographic projection of the corresponding pixel opening onto the substrate Sub. The pixel opening exposes a portion of the second electrode Ano corresponding to the light-emitting element. The first electrode Cath corresponding to the light-emitting element is at least partially disposed within the first isolation opening and overlaps with the first isolation structure. The light-emitting element may include a hole injection layer, a hole transport layer, an electron blocking layer, a light-emitting layer, a hole blocking layer, an electron transport layer, and an electron injection layer located between the second electrode Ano and the first electrode Cath. The light-emitting elements in the display panel may include a first-color light-emitting element, a second-color light-emitting element, and a third-color light-emitting element. The first-color light-emitting element, the second-color light-emitting element, and the third-color light-emitting element emit different colors in pairs. For example, the emitted light from the first-color light-emitting element is red, the emitted light from the second-color light-emitting element is green, and the emitted light from the third-color light-emitting element is blue. Each light-emitting element is also provided with a first inorganic encapsulation layer CVD1. The display panel also includes an organic encapsulation layer IJP located on the side of the first inorganic encapsulation layer CVD1 away from the substrate, which covers the entire display area AA and part of the border area NAA. The display panel may also include a second inorganic encapsulation layer covering the organic encapsulation layer IJP.

[0121] Optionally, continuing to refer to Figure 2, the second isolation structure SON is connected to the first connection lead L1 through via Da.

[0122] Specifically, in this embodiment, after forming the portion corresponding to the first connection lead L1 in the fifth metal layer M5, an insulating layer is formed, and then a second isolation structure is formed on the insulating layer. Forming the insulating layer includes forming a third planarization layer PLN3 and etching an opening in the portion of the third planarization layer PLN3 covering the first connection lead L3; the pixel definition layer VPDL is disposed along the via, exposing the first connection lead L1; subsequently, the second isolation structure is extended along the via formed in the pixel definition layer to form a via Da. That is, in this embodiment, the via is formed on the insulating layer, which includes the third planarization layer PLN3 and the pixel definition layer VPDL. In some embodiments, each first connection lead L1 is connected to the second isolation structure only through one via Da, and the overlapping portion of the first connection lead L1 and the second isolation structure is small, thereby reducing the size of the first border region NAA1. In other embodiments, each first connection lead L1 is connected to the second isolation structure through at least two vias Da arranged along the first direction X, as shown in FIG2, where each first connection lead L1 overlaps with three vias Da arranged along the first direction X. This reduces the contact resistance between the first connection lead L1 and the isolation structure, thereby reducing signal transmission loss and helping to reduce the power consumption of the display panel.

[0123] Optionally, referring to Figure 2, the connecting part further includes a third isolation structure SON1, which is located in the first frame area NAA1 and has a third isolation opening; a dummy light-emitting element is provided in the third isolation opening; the third isolation structure SON1 is located between the via Da and the display area AA.

[0124] Specifically, the third isolation structure SON1 can also be understood as part of the isolation structure SO. That is, the part of the isolation structure located in the first border area NAA1 includes the third isolation structure SON1 and the second isolation structure SON. The second isolation structure SON is connected to the first connection lead L1 through a via Da. The third isolation structure SON1 is continuous with the first isolation structure SON, so that the light-emitting elements at the edge of the display area AA are not the outermost light-emitting elements during evaporation. In other words, each light-emitting element in the display area AA is not the outermost light-emitting element, thus improving the uniformity of the evaporation of the light-emitting elements in the display area AA and avoiding defects in the evaporation of the light-emitting elements at the edge of the display area. It can be understood that the dummy light-emitting elements are not connected to the pixel driving circuit, that is, they are not used for emitting light. In addition, each column of pixels in the first border area NAA1 corresponding to the display area AA is provided with at least one dummy pixel. Each pixel includes at least one first color light-emitting element, at least one second color light-emitting element, and at least one third color light-emitting element. Each dummy pixel includes at least one first color dummy light-emitting element, at least one second color dummy light-emitting element, and at least one third color dummy light-emitting element.

[0125] Optionally, the third isolation structure is on the same layer as the first isolation structure; optionally, the third isolation structure is electrically connected to the first isolation structure; optionally, the third isolation structure, the second isolation structure, and the first isolation structure are an integral structure; further, the third isolation structure is connected to the first isolation structure in a mesh.

[0126] Optionally, referring back to Figure 3, the display panel also includes a fourth isolation structure SON2 located in the second bezel area, the fourth isolation structure SON2 forming a fourth isolation opening; a dummy light-emitting element is disposed within the fourth isolation opening. The fourth isolation structure SON2 can be understood as the portion of the isolation structure SO located in the second bezel area.

[0127] Specifically, the purpose of setting a dummy light-emitting element within the fourth isolation opening is the same as that of setting a dummy light-emitting element within the third isolation opening, namely, to improve the uniformity of the light-emitting element deposition in the display area AA. This embodiment makes the deposition of each light-emitting element in the display area AA more uniform, improving display uniformity. It should be noted that although only the cross-sectional view of the first second border area NAA2 is shown in this embodiment, the cross-sectional views of the second and third second border areas NAA3 are the same as those of the first second border area NAA2, and will not be repeated here. Furthermore, although only one dummy light-emitting element is shown in Figure 3, it is not limited to this. For the first second border area, each row may include at least one dummy pixel, and the dummy pixel includes at least one first-color dummy light-emitting element, at least one second-color dummy light-emitting element, and at least one third-color dummy light-emitting element.

[0128] Optionally, the fourth isolation structure is on the same layer as the first isolation structure; optionally, the fourth isolation structure is electrically connected to the first isolation structure; optionally, the fourth isolation structure is connected to the first isolation structure in a mesh.

[0129] Optionally, referring to Figure 2, the display panel also includes at least one dam Dam surrounding the display area, with dam openings provided on the dam Dam. The dam Dam may comprise a first planarization layer PLN1, a fifth metal layer M5, a third planarization layer PLN3, and a pixel definition layer VPDL. The dam openings are formed by the pixel definition layer VPDL. The dam Dam is used to prevent overflow of the organic encapsulation layer IJP. The dam openings allow for venting, enabling gases released from the organic layer (third planarization layer PLN3) to be released to the outside.

[0130] Optionally, referring to Figure 2, the driving circuit layer located in the first border area NAA1 is provided with multiple power signal leads E1. One end of the power signal lead E1 is electrically connected to the display area AA, and the other end of the power signal lead E1 is electrically connected to the bonding area Bon. The power signal lead E1 is used to transmit the first power signal ELVDD in the bonding area E1 to the first power signal line of the display area. The power signal lead E1 can be switched from the fifth metal layer M5 to the fourth metal layer M4, and then from the fourth metal layer M4 to the third metal layer M3.

[0131] Optionally, the portion of the driving circuit layer located in the first bezel area NAA1 further includes multiple fan-out lines (not shown). One end of each fan-out line is electrically connected to the display area, specifically to a data line in the display area, and the other end is electrically connected to the bonding area. The fan-out lines are used to provide data signals to the data lines. The fan-out lines can be disposed in the second metal layer M2 and / or the first metal layer M1.

[0132] Optionally, Figure 8 is a schematic diagram of the circuit structure of a pixel driving circuit provided in an embodiment of the present invention. Referring to Figure 8, the pixel driving circuit includes a driving module 101, a data writing module 107, and a storage module 104. The data writing module 107 is used to write the data voltage Vdata into the driving module 101. The driving module 101 is used to generate a driving current according to the data voltage Vdata, and the light-emitting element 102 emits light in response to the driving current. The storage module 104 is used to maintain the potential of the control terminal of the driving module 101.

[0133] Specifically, the operation of the pixel driving circuit can include a charging stage and a light-emitting stage. During the charging stage, the data writing module 107 writes the data voltage Vdata to the control terminal of the driving module 101. During the light-emitting stage, the storage module 104 maintains the potential of the control terminal of the driving module 101, and the driving module 101 generates a corresponding driving current based on the data voltage Vdata, causing the corresponding light-emitting element to emit light.

[0134] Optionally, referring to Figure 8, the pixel driving circuit further includes: a threshold compensation module 103, a first initialization module 105, a second initialization module 106, a first light emission control module 108, and a second light emission control module 109. The first terminal of the data writing module 107 is connected to the data voltage Vdata, the second terminal of the data writing module 107 is electrically connected to the first terminal of the driving module 101, and the control terminal of the data writing module 107 is connected to the second scan signal S2. The first terminal of the threshold compensation module 103 is electrically connected to the second terminal of the driving module 101, and the second terminal of the threshold compensation module 103 is electrically connected to the control terminal of the driving module 101. The control terminal of the threshold compensation module 103 is connected to the second scan signal S2. The first terminal of the first initialization module 105 is connected to the first initialization signal Vref1, the second terminal of the first initialization module 105 is electrically connected to the control terminal of the driving module 101, and the control terminal of the first initialization module 105 is connected to the first scan signal S1. The first terminal of the second initialization module 106 is connected to the second initialization signal Vref2, and the second terminal of the second initialization module 106 is electrically connected to the second electrode corresponding to the light-emitting element 102. The control terminal of the second initialization module is connected to the first scan signal S1. The first terminal of the first light-emitting control module 108 is connected to the first power signal ELVDD, and the second terminal of the first light-emitting control module 108 is electrically connected to the first terminal of the driving module 101. The control terminal of the first light-emitting control module 108 is connected to the light-emitting control signal EM. The first terminal of the second light-emitting control module 109 is electrically connected to the second terminal of the driving module 101, and the second terminal of the second light-emitting control module 109 is electrically connected to the second electrode corresponding to the light-emitting element 102. The control terminal of the second light-emitting control module 109 is connected to the light-emitting control signal EM. The first terminal of the storage module 104 is connected to the first power signal ELVDD, and the second terminal of the storage module 104 is electrically connected to the control terminal of the driving module 101. The second electrode corresponding to the light-emitting element is connected to the second power signal ELVSS, wherein the second power signal ELVSS is also the power signal transmitted to the first electrode by the isolation structure and the connection part described herein.

[0135] The operation of a pixel driving circuit includes an initialization phase, a charging phase, and an emission phase.

[0136] During the initialization phase, the first scan signal S1 controls the first initialization module 105 and the second initialization module 106 to be turned on; the control terminal of the drive module 101 is reset by the first initialization signal Vref1 to facilitate its turn-on during the charging phase; the second electrode corresponding to the light-emitting element 102 is written with the second initialization signal Vref2 to prevent residual signals from the previous frame from causing ghosting.

[0137] During the charging phase, the second scan signal S2 controls the data writing module 107 and the threshold compensation module 103 to turn on. The data voltage Vdata is written to the control terminal of the drive module 101 after passing through the data writing module 107, the drive module 101, and the threshold compensation module 103. When the voltage difference between the control terminal of the drive module 101 and its first terminal equals the threshold voltage of the drive module 101, the drive module 101 is turned off, thus ensuring that the voltage at the control terminal of the drive module 101 contains the threshold voltage information of the drive module 101. In other words, the threshold voltage compensation of the drive module 101 is completed during the charging phase.

[0138] During the light-emitting phase, the light-emitting control signal EM controls the first light-emitting control module 108 and the second light-emitting control module 109 to conduct. The driving module 101 generates a driving current, the storage module 104 maintains the potential of the control terminal of the driving module 101, and the light-emitting element 102 emits light in response to the driving current.

[0139] For example, the driving module 101 includes a first transistor T1, the first end of the first transistor T1 serves as the first end of the driving module 101, the second end of the first transistor T1 serves as the second end of the driving module 101, and the control end of the first transistor T1 serves as the control end of the driving module 101.

[0140] The data writing module 107 includes a second transistor T2. The first terminal of the second transistor T2 serves as the first terminal of the data writing module 107, the second terminal of the second transistor T2 serves as the second terminal of the data writing module 107, and the control terminal of the second transistor T2 serves as the control terminal of the data writing module 107.

[0141] The threshold compensation module 103 includes a third transistor T3. The first terminal of the third transistor T3 serves as the first terminal of the threshold compensation module 103, the second terminal of the third transistor T3 serves as the second terminal of the threshold compensation module 103, and the control terminal of the third transistor T3 serves as the control terminal of the threshold compensation module 103.

[0142] The first initialization module 105 includes a fourth transistor T4. The first terminal of the fourth transistor T4 serves as the first terminal of the first initialization module 105, the second terminal of the fourth transistor T4 serves as the second terminal of the first initialization module 105, and the control terminal of the fourth transistor T4 serves as the control terminal of the first initialization module 105.

[0143] The first light-emitting control module 108 includes a fifth transistor T5. The first terminal of the fifth transistor T5 serves as the first terminal of the first light-emitting control module 108, the second terminal of the fifth transistor T5 serves as the second terminal of the first light-emitting control module 108, and the control terminal of the fifth transistor T5 serves as the control terminal of the first light-emitting control module 108.

[0144] The second light-emitting control module 109 includes a sixth transistor T6. The first terminal of the sixth transistor T6 serves as the first terminal of the second light-emitting control module 109, the second terminal of the sixth transistor T6 serves as the second terminal of the second light-emitting control module 109, and the control terminal of the sixth transistor T6 serves as the control terminal of the second light-emitting control module 109.

[0145] The second initialization module 106 includes a seventh transistor T7. The first terminal of the seventh transistor T7 serves as the first terminal of the second initialization module 106, the second terminal of the seventh transistor T7 serves as the second terminal of the second initialization module 106, and the control terminal of the seventh transistor T7 serves as the control terminal of the second initialization module 106.

[0146] The storage module 104 includes a storage capacitor Cst, the first plate of the storage capacitor Cst serves as the second terminal of the storage module 104, and the second plate of the storage capacitor Cst serves as the second terminal of the storage module 104.

[0147] It should be noted that the pixel driving circuit can also have other structures. For example, the pixel driving circuit can also be a pixel driving circuit that includes oxide thin-film transistors, etc.

[0148] This invention also provides a display panel, which includes a display area and a first border area arranged along a first direction, the first border area being provided with a bonding area; a substrate; a first isolation structure disposed in the display area and on one side of the substrate; the first isolation structure being provided with a plurality of first isolation openings, each of which is provided with a light-emitting element; and a connecting portion, one end of which is electrically connected to the first isolation structure, wherein the connecting portion is located only in the first border area.

[0149] In this embodiment, the connecting portion is only provided in the first border area. The connecting portion can transmit the first electrode voltage transmitted from the bonding area to the first isolation structure in the display area, and then transmit it to the first electrode corresponding to each light-emitting element through the first isolation structure in the display area. Since the impedance of the first isolation structure is small, the difference in the first electrode voltage received by the first electrode corresponding to each light-emitting element is also small, resulting in better display uniformity of the display panel. In addition, in this embodiment, the connecting portion is only provided in the first border area, and only the first border area has a large size. That is, the connecting portion only needs to extend along the first direction within the first border area, and does not need to be provided around the entire display area. Therefore, only the first border area has a large size, while other border areas of the display panel can be provided with smaller sizes, or no other border areas can be provided. Thus, this embodiment can greatly reduce the border size of the display panel. Optionally, when the display panel also includes at least one second border area; the second border area is adjacent to the first border area, and / or, the second border area is opposite to the first border area; the second border area does not provide a connecting portion for connecting the isolation structure located in the display area and the bonding area.

[0150] Optionally, the other end of the connecting portion extends into the bonding area. The connecting portion includes: a second isolation structure, wherein the second isolation structure can also be understood as the portion of the isolation structure located in the first border area; at least one first connecting lead, the first end of the first connecting lead overlapping at least a portion of the second isolation structure, and the second end of the first connecting lead extending into the bonding area.

[0151] Specifically, in this embodiment, the isolation structure is located not only in the display area but also in a portion of the first border area. That is, the isolation structure extends from the display area into the first border area. The first connecting lead and the isolation structure are located on different layers, thus ensuring electrical connection between the first connecting lead and the isolation structure in the thickness direction of the display panel. This facilitates manufacturing and guarantees the stability of the electrical connection. It ensures stable signal transmission in the portion of the display area (i.e., the first isolation structure) where the connecting lead and the isolation structure are located. It should be noted that the connecting lead L1 is not limited to being located in only one layer. The connecting lead L1 can extend to the bonding area in one layer and be electrically connected to the bonding pads, or it can be extended to the bonding area and electrically connected to the bonding pads by changing lines in multiple layers.

[0152] Optionally, the first connecting lead extends along a first direction; optionally, two first connecting leads are arranged along a second direction, with the first direction intersecting the second direction; optionally, the second isolation structure is disposed on the same layer as the first isolation structure; optionally, the second isolation structure is electrically connected to the first isolation structure; optionally, the second isolation structure does not have an isolation opening; optionally, the orthographic projection of the second isolation structure on the substrate covers at least a portion of the orthographic projection of the first isolation structure on the substrate; optionally, the orthographic projection of the first isolation structure on the substrate covers at least a portion of the orthographic projection of the second isolation structure on the substrate; and along the first direction, the orthographic projections of the first isolation structure and the second isolation structure on the substrate are at least partially misaligned.

[0153] Optionally, the second isolation structure is connected to the first connection lead via a via;

[0154] Preferably, along the thickness direction of the display panel, at least one insulating layer is provided between the first connecting lead and the second isolation structure, and the via is formed on the insulating layer;

[0155] Optionally, the display panel further includes a third isolation structure located in the first bezel area; a dummy light-emitting element is disposed within the third isolation opening formed by the third isolation structure; the third isolation structure is located between the via and the display area. Optionally, the third isolation structure is disposed on the same layer as the first isolation structure. Optionally, the third isolation structure is electrically connected to the first isolation structure. Optionally, the third isolation structure is connected to the first isolation structure in a mesh pattern.

[0156] It should be noted that the display panel in this embodiment can have the same settings and effects as the display panel in the previous embodiment, and will not be described again here.

[0157] The present invention also provides a display device, as shown in FIG9, which is a structural schematic diagram of a display device provided in an embodiment of the present invention. The display device includes the display panel provided in any embodiment of the present invention, and can be a mobile phone, tablet computer, MP3 player, MP4 player, video phone, personal digital assistant, smartwatch, smart helmet, or other wearable device, etc. Since the display device provided in the embodiments of the present invention includes the display panel provided in the embodiments of the present invention, it also has the same beneficial effects, which will not be repeated here.

[0158] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.

[0159] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A display panel, characterized in that, The display panel includes: a display area and a first border area arranged along a first direction, the first border area having a bonding area; a substrate; a first isolation structure disposed in the display area and on one side of the substrate; the first isolation structure having a plurality of first isolation openings, each of which contains a light-emitting element; and a connecting portion disposed in the first border area, one end of which is electrically connected to the first isolation structure.

2. The display panel according to claim 1, characterized in that, The other end of the connecting portion extends to the bonding area; the connecting portion includes: a second isolation structure disposed in the first frame area and on one side of the substrate; at least one first connecting lead, the first end of the first connecting lead overlapping at least part of the second isolation structure, and the second end of the first connecting lead extending to the bonding area.

3. The display panel according to claim 2, characterized in that, The first connecting lead extends along the first direction.

4. The display panel according to claim 3, characterized in that, The two first connecting leads are arranged along the second direction, and the first direction intersects the second direction.

5. The display panel according to claim 2, characterized in that, The second isolation structure is disposed on the same layer as the first isolation structure.

6. The display panel according to claim 2, characterized in that, The second isolation structure is electrically connected to the first isolation structure.

7. The display panel according to claim 2, characterized in that, The second isolation structure does not have an isolation opening.

8. The display panel according to claim 2, characterized in that, The orthographic projection of the second isolation structure on the substrate covers at least a portion of the orthographic projection of the first isolation structure on the substrate.

9. The display panel according to claim 2, characterized in that, The orthographic projection of the first isolation structure on the substrate covers at least a portion of the orthographic projection of the second isolation structure on the substrate; and along the first direction, the orthographic projection of the first isolation structure on the substrate and the orthographic projection of the second isolation structure on the substrate are at least partially misaligned.

10. The display panel according to claim 9, characterized in that, The connection portion further includes at least one second connection lead extending along a second direction, each of the second connection leads being electrically connected to at least two of the first connection leads.

11. The display panel according to claim 10, characterized in that, The connection portion further includes at least one third connection lead extending along the first direction, the first end of the third connection lead overlapping at least part of the second isolation structure, and the second end of the third connection lead being electrically connected to the second connection lead.

12. The display panel according to claim 11, characterized in that, The first connecting lead, the second connecting lead, and the third connecting lead are electrically connected in a mesh structure.

13. The display panel according to claim 12, characterized in that, The second connecting lead is located between the binding area and the display area, and / or the third connecting lead is located between the two first connecting leads, and / or the first connecting leads and the third connecting lead are evenly distributed in the second direction.

14. The display panel according to claim 12, characterized in that, At least a portion of at least two of the first connecting lead, the second connecting lead, and the third connecting lead are disposed in the same layer.

15. The display panel according to claim 14, characterized in that, The first connecting lead, the second connecting lead, and the third connecting lead are at least partially disposed on the same layer.

16. The display panel according to claim 15, characterized in that, The substrate includes a substrate and a driving circuit layer disposed on the substrate. The driving circuit layer includes a preset metal layer close to the first isolation structure. The first connection lead, the second connection lead and the third connection lead each include a portion located in the preset metal layer. The portion of the first connection lead located in the preset metal layer overlaps with the second isolation structure.

17. The display panel according to claim 16, characterized in that, The driving circuit layer includes an active layer, a first metal layer, a second metal layer, and a third metal layer stacked sequentially on the substrate, wherein the preset metal layer is the third metal layer.

18. The display panel according to claim 17, characterized in that, The driving circuit layer further includes a fourth metal layer, and the preset metal layer is the fourth metal layer.

19. The display panel according to claim 18, characterized in that, The driving circuit layer further includes a fifth metal layer, and the preset metal layer is the fifth metal layer.

20. The display panel according to claim 2, characterized in that, The second isolation structure is connected to the first connection lead via a via.

21. The display panel according to claim 20, characterized in that, Each of the first connection leads is connected to the second isolation structure via at least two of the vias arranged along the first direction.

22. The display panel according to claim 21, characterized in that, Along the thickness direction of the display panel, at least one insulating layer is provided between the first connecting lead and the second isolation structure, and the via is formed on the insulating layer.

23. The display panel according to claim 22, characterized in that, The connecting part further includes a third isolation structure, which is located in the first frame area; and the third isolation structure is provided with a third isolation opening, in which a dummy light-emitting element is provided. The third isolation structure is located between the via and the display area.

24. The display panel according to claim 23, characterized in that, The third isolation structure is disposed on the same layer as the first isolation structure.

25. The display panel according to claim 23, characterized in that, The third isolation structure is electrically connected to the first isolation structure.

26. The display panel according to claim 23, characterized in that, The third isolation structure, the second isolation structure, and the first isolation structure are integrally formed.

27. The display panel according to claim 23, characterized in that, The third isolation structure is connected to the first isolation structure in a mesh-like manner.

28. The display panel according to claim 1, characterized in that, The display panel further includes at least one second border area; the second border area is arranged with the display area along a second direction, and / or, along the first direction, the second border area and the first border area are located on opposite sides of the display area; wherein, the second direction intersects the first direction; the second border area is not provided with the connection portion electrically connecting the first isolation structure and the binding area.

29. The display panel according to claim 28, characterized in that, Along the thickness direction of the display panel, the orthographic projection of the connecting portion is located outside the orthographic projection of the second frame area.

30. The display panel according to claim 29, characterized in that, The display panel also includes a fourth isolation structure located in the second frame area, the fourth isolation structure having a fourth isolation opening; a dummy light-emitting element is disposed within the fourth isolation opening.

31. The display panel according to claim 30, characterized in that, The fourth isolation structure is on the same layer as the first isolation structure.

32. The display panel according to claim 30, characterized in that, The fourth isolation structure is electrically connected to the first isolation structure.

33. The display panel according to claim 30, characterized in that, The fourth isolation structure is connected to the first isolation structure in a mesh-like manner.

34. The display panel according to any one of claims 30-33, characterized in that, The substrate includes a substrate and a driving circuit layer disposed on the substrate. A plurality of dummy pixel driving circuits are formed in the portion of the driving circuit layer located in the second frame area. Each dummy pixel driving circuit corresponds to at least one dummy light-emitting element. The dummy pixel circuit is insulated from the corresponding dummy light-emitting element.

35. The display panel according to claim 1, characterized in that, The substrate includes a substrate and a driving circuit layer disposed on the substrate. The portion of the driving circuit layer located in the display area is provided with a plurality of pixel driving circuits, and each pixel driving circuit is connected to at least one of the light-emitting elements.

36. The display panel according to claim 35, characterized in that, The driving circuit layer located in the first frame area has multiple power signal leads. One end of each power signal lead is electrically connected to the display area, and the other end of each power signal lead extends to the bonding area.

37. The display panel according to claim 1, characterized in that, The isolation structure includes a support portion and a crown portion; along the thickness direction of the display panel, the orthographic projection of the support portion on the substrate is located within the orthographic projection of the crown portion on the substrate; wherein, the support portion is a conductive structure.

38. The display panel according to claim 37, characterized in that, The display panel also includes at least one dam surrounding the display area, the dam having an opening.

39. The display panel according to claim 37, characterized in that, The display panel further includes a plurality of first electrodes, which are disposed within the isolation opening and located on the side of the light-emitting element away from the substrate, wherein the first electrodes overlap with the support portion.

40. A display panel, characterized in that, The display panel includes: a display area and a first border area arranged along a first direction, the first border area having a bonding area; a substrate; a first isolation structure disposed in the display area and on one side of the substrate; the first isolation structure having a plurality of first isolation openings, each of which has a light-emitting element disposed within it; and a connecting portion, one end of which is electrically connected to the first isolation structure, wherein the connecting portion is located only in the first border area.

41. The display panel according to claim 40, characterized in that, The other end of the connecting portion extends to the bonding area; the connecting portion includes: a second isolation structure disposed in the first frame area and on one side of the substrate; at least one first connecting lead, the first end of the first connecting lead overlapping at least part of the second isolation structure, and the second end of the first connecting lead extending to the bonding area.

42. The display panel according to claim 41, characterized in that, The first connecting lead extends along the first direction.

43. The display panel according to claim 41, characterized in that, The two first connecting leads are arranged along the second direction, and the first direction intersects the second direction.

44. The display panel according to claim 41, characterized in that, The second isolation structure is disposed on the same layer as the first isolation structure.

45. The display panel according to claim 41, characterized in that, The second isolation structure is electrically connected to the first isolation structure.

46. ​​The display panel according to claim 41, characterized in that, The second isolation structure does not have an isolation opening.

47. The display panel according to claim 41, characterized in that, The orthographic projection of the second isolation structure on the substrate covers at least a portion of the orthographic projection of the first isolation structure on the substrate.

48. The display panel according to claim 41, characterized in that, The orthographic projection of the first isolation structure on the substrate covers at least a portion of the orthographic projection of the second isolation structure on the substrate; and along the first direction, the orthographic projection of the first isolation structure on the substrate and the orthographic projection of the second isolation structure on the substrate are at least partially misaligned.

49. The display panel according to claim 48, characterized in that, The second isolation structure is connected to the first connection lead via a via.

50. The display panel according to claim 49, characterized in that, Along the thickness direction of the display panel, at least one insulating layer is provided between the first connecting lead and the second isolation structure, and the via is formed on the insulating layer.

51. The display panel according to claim 50, characterized in that, The connecting portion further includes a third isolation structure, which is located in the first frame area; the third isolation structure is provided with a third isolation opening, and a dummy light-emitting element is provided in the third isolation opening; the third isolation structure is located between the via and the display area.

52. The display panel according to claim 51, characterized in that, The third isolation structure is disposed on the same layer as the first isolation structure.

53. The display panel according to claim 51, characterized in that, The third isolation structure is electrically connected to the first isolation structure.

54. The display panel according to claim 51, characterized in that, The third isolation structure, the second isolation structure, and the first isolation structure are integrally formed.

55. The display panel according to claim 51, characterized in that, The third isolation structure is connected to the first isolation structure in a mesh-like manner.

56. The display panel according to claim 40, characterized in that, The display panel further includes at least one second border area; the second border area is arranged with the display area along a second direction, and / or, along the first direction, the second border area and the first border area are located on opposite sides of the display area; wherein, the second direction intersects the first direction; the second border area is not provided with the connection portion electrically connecting the first isolation structure and the binding area.

57. The display panel according to claim 56, characterized in that, Along the thickness direction of the display panel, the orthographic projection of the connecting portion is located outside the orthographic projection of the second frame area.

58. A display device, characterized in that, The display device includes the display panel according to any one of claims 1-39, or the display panel according to any one of claims 40-57.

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