Display panel and display device

Abstract

The invention discloses a display panel and a display device. The display panel comprises a display area and a first frame area which are arranged in the first direction, and the first frame area is provided with a binding area; a substrate; the first isolation structure is arranged in the display area and is arranged on one side of the substrate; the first isolation structure is provided with a plurality of first isolation openings, and light-emitting elements are arranged in the first isolation openings; the connecting part is arranged in the first frame area, and one end of the connecting part is electrically connected with the isolation structure located in the display area. The frame of the display panel can be reduced.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a display panel and a display device. Background Art

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

[0003] However, in the related art, the display panel has a problem of a large frame, which limits the further application of the display panel. Summary of the invention

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

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

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

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

[0008] A connecting portion is disposed in the first border area, and one end of the connecting portion 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, the second isolation structure being disposed in the first border region and disposed on one side of the substrate; at least one first connecting lead, a first end of the first connecting lead being overlapped with at least a portion of the second isolation structure, and a second end of the first connecting lead extending to the binding region;

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

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

[0013] Preferably, the second isolation structure is arranged at 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 is not provided with 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 part 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 is at least partially misaligned with the orthographic projection of the second isolation structure on the substrate.

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

[0019] Preferably, the connecting portion further comprises at least one third connecting lead extending along the first direction, a first end of the third connecting lead overlaps at least a portion of the second isolation structure, and a second end of the third connecting lead is 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 to form a mesh structure.

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

[0022] Optionally, at least parts of at least two of the first connecting lead, the second connecting lead and the third connecting lead are arranged in the same layer;

[0023] Preferably, the first connecting lead, the second connecting lead and the third connecting lead are at least partially arranged 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, and the first connecting lead, the second connecting lead and the third connecting lead each include a portion located in the preset metal layer; wherein the portion of the first connecting lead located in the preset metal layer overlaps the second isolation structure;

[0025] Preferably, the driving circuit layer comprises an active layer, a first metal layer, a second metal layer, and a third metal layer sequentially stacked on the substrate, and 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 through a via;

[0029] Preferably, each of the first connecting leads is connected to the second isolation structure through at least two of the 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 hole is opened on the insulating layer.

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

[0032] Preferably, the third isolation structure is arranged at 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 arranged;

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

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

[0037] The second border area is not provided with the connecting portion electrically connecting 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 comprises a fourth isolation structure located in the second frame area, the fourth isolation structure is provided with a fourth isolation opening; a dummy light emitting element is provided in the fourth isolation opening;

[0040] Preferably, the fourth isolation structure is in 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 mesh-connected to the first isolation structure.

[0043] Optionally, the substrate includes a substrate and a driving circuit layer arranged on the substrate, and a portion of the driving circuit layer located in the second border area is formed with a plurality of dummy pixel driving circuits; each of the dummy pixel driving circuits 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 comprises a substrate and a driving circuit layer disposed on the substrate, a portion of the driving circuit layer located in the display area is provided with a plurality of pixel driving circuits, and each of the pixel driving circuits is connected to at least one of the light-emitting elements;

[0045] Preferably, a portion of the driving circuit layer located in the first frame area is provided with a plurality of power signal leads, one end of the power signal lead is electrically connected to the display area, and the other end of the power signal lead extends to the binding 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 comprises at least one dam surrounding the display area, and the dam is provided with a dam opening.

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

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

[0050] A display area and a first frame area arranged along a first direction, wherein the first frame 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 light-emitting elements are disposed in the first isolation openings;

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

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

[0055] A second isolation structure, the second isolation structure is disposed in the first border area and disposed on one side of the substrate;

[0056] at least one first connecting lead, wherein a first end of the first connecting lead overlaps at least a portion of the second isolation structure, and a second end of the first connecting lead extends to the binding area;

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

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

[0059] Preferably, the second isolation structure is arranged at 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 is not provided with 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 part 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 is at least partially misaligned with the orthographic projection of the second isolation structure on the substrate.

[0064] Optionally, the second isolation structure is connected to the first connection lead through 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 hole is opened on the insulating layer;

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

[0067] Preferably, the third isolation structure is arranged at 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 arranged;

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

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

[0072] The second border area is not provided with the connecting portion electrically connecting 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, comprising the display panel as described above in claim 1.

[0075] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0076] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

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

[0078] Figure 2for Figure 1 Sectional view along direction A1A2;

[0079] Figure 3 for Figure 1 Sectional view along direction A3A4;

[0080] Figure 4 for Figure 1 A partial enlarged view of

[0081] Figure 5 for Figure 1 Another partial enlarged view of;

[0082] Figure 6 for Figure 1 Another partial enlarged view of;

[0083] Figure 7 for Figure 1 Another partial enlarged view of;

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

[0085] Fig. 9 A schematic structural diagram of a display device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0086] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work 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 and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0088] As mentioned above, the display panel in the related art has the problem of a large frame. After extensive research, the inventor found that the reason for this technical problem is that the display panel in the related art needs to be provided with a first electrode power line surrounding the display area at the frame, and the first electrode power line connects the first electrode corresponding to the light-emitting element in the display panel to the driver chip bound to the binding area. In other words, each frame area of ​​the display panel needs to be connected with the first electrode power line, so that each frame area of ​​the display panel is larger, and the frame of the display panel is larger. Among them, the first electrode is, for example, a cathode.

[0089] In view of the above technical problems, the present invention proposes the following solutions:

[0090] Figure 1 A schematic diagram of the structure of a display panel provided by an embodiment of the present invention, Figure 2 for Figure 1 The cross-section along the A1A2 direction, Figure 3 for Figure 1 Cross-section along the A3A4 direction, reference Figures 1 to 3 The display panel includes: a display area AA and a first frame area NAA1 arranged along a first direction X, and a binding area Bon is arranged in the first frame area NAA1; the display panel also includes a substrate, a first isolation structure SOA, and a connection portion L; the first isolation structure SOA is arranged in the display area and on one side of the substrate; the first isolation structure SOA is formed with a plurality of first isolation openings Ap, and a light-emitting element is arranged in the first isolation opening Ap; one end of the connection portion L is electrically connected to the first isolation structure SOA.

[0091] Specifically, the display panel may be an OLED (Organic Light Emitting Diode) display panel or a Micro-LED (Micro Light Emitting Diode). The light-emitting element in the display panel is a current-type device that needs to respond to a driving current to emit light. A pixel driving circuit is provided in the substrate, and the pixel driving circuit provides a driving current for the light-emitting element. In the related art, the first electrode corresponding to the light-emitting element of the display panel is a whole-layer structure, and the first electrode is a metal material. In order to ensure the light transmittance of the first electrode, the thickness of the first electrode is relatively thin; and the thin thickness will make the resistance of the first electrode larger. In order to make the difference in voltage received by the first electrode corresponding to each light-emitting element smaller, a circle of connecting parts will be provided in the border area of ​​the display panel in the related art. The impedance of the connecting part is small, which can reduce the difference in voltage received by the first electrode corresponding to each light-emitting element, but will make each border area of ​​the display panel larger. Among them, the first electrode is, for example, a cathode.

[0092] In this embodiment, the display panel includes a first isolation structure SOA, which is conductive; and the light-emitting element is arranged in the opening formed by the first isolation structure SOA, that is, the first isolation structure SOA will not block the emitted light of the light-emitting element, so the thickness of the first isolation structure SOA can be set thicker, and the impedance of the first isolation structure SOA is also smaller. Based on this, in this embodiment, a connection portion L is set in the first frame area NAA1, and the connection portion L can transmit the first electrode voltage transmitted from the binding 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. Since the impedance of the first isolation structure SOA is small, the difference in the first electrode voltage received by the first electrode corresponding to each light-emitting element is also small, and the display uniformity of the display panel is better. In addition, in this embodiment, only the connection portion L is set in the first frame area NAA1, and only the first frame area NAA1 has a larger size. In other words, the connection portion L only needs to extend along the first direction X in the first frame area NAA1, and does not need to be set around the display area. Therefore, only the first border area NAA1 has a larger size, while other border areas of the display panel can be set to smaller sizes, or no other border areas are set, so this embodiment can greatly reduce the border of the display panel.

[0093] The technical solution of this embodiment adopts a display panel including a display area and a first frame area arranged along a first direction, and a binding area is provided in the first frame area; the display panel also includes a substrate; a first isolation structure is provided in the display area and is provided on one side of the substrate; the first isolation structure is formed with a plurality of first isolation openings, and a light-emitting element is provided in the first isolation opening; the display panel also includes a connecting portion provided in the first frame area; one end of the connecting portion is electrically connected to the first isolation structure, and the other end extends to the binding area. The display panel is provided with a first isolation structure, and the first isolation structure has a relatively small impedance. The connecting portion is only provided in the first frame area to ensure that the voltage difference received by the first electrode of each light-emitting element in the display panel is relatively small, and the connecting portion does not need to be provided in other frame areas, thereby reducing the size of other frame areas.

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

[0095] The composition, preparation and other contents 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.

[0097] Optionally, refer 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 is located 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 with the first electrode corresponding to the light-emitting element, the support portion SO1 is thicker and has a smaller impedance.

[0098] 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, taking the border area NAA completely surrounding the display area AA as an example, the border area NAA includes a first border area NAA1 and at least one second border area. The second border area is arranged with the display area AA along the second direction Y, and / or, along the first direction X, the second border area and the first border area are located on both 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 both sides of the display area AA along the second direction Y, and the third second border area NAA4 and the first border area NAA1 are located on opposite sides of the display area AA along the first direction X. The first direction X intersects with the second direction Y. Optionally, the first direction X may be a column direction, and the second direction Y may be a row direction. The second border area is not provided with a connection portion for connecting the first isolation structure SOA and the binding area Bon, or in other words, along the thickness direction of the display panel, the orthographic projection of the connection portion is located outside the orthographic projection of the second border area. In other words, the connection portion L for connecting the first isolation structure SOA and the binding area Bon is only provided in the first border area NAA1, so that the second border area can be provided with fewer wirings, thereby reducing the size of the second border area.

[0099] Optionally, the binding area Bon is used to bind the driver chip. After the driver chip is bound to the display panel, the driver chip 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., which is not specifically limited in this embodiment.

[0100] Optionally, continue to refer to Figure 1 and Figure 2, the other end of the connection portion L extends to the binding area Bon, and specifically can be electrically connected to the pad in the binding 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 overlaps at least a portion of the second isolation structure SON, and the second end of the first connection lead L1 is electrically connected to the binding area Bon.

[0101] Specifically, the isolation structure SO in the present embodiment is not only located in the display area AA, but also in part of the first border area NAA1. That is to say, the isolation structure SO extends from the display area AA to the first border area NAA1. The first connecting lead L1 and the isolation structure SO are located in different layers, so that the first connecting lead L1 and the isolation structure SO are electrically connected in the thickness direction of the display panel, which is convenient for manufacturing and ensures the stability of the electrical connection. The stability of the signal transmission between the connecting lead L1 and the part of the isolation structure SO located in the display area AA (that is, the first isolation structure SOA) is ensured. It should be noted that the connecting lead L1 is not limited to being located in only one layer. The connecting lead L1 can be extended to the binding area Bon in one layer and electrically connected to the binding pad, or it can be extended to the binding area Bon by changing the line in multiple layers and electrically connected to the binding pad.

[0102] Optionally, the second isolation structure is in the same layer as the first isolation structure.

[0103] Optionally, the second isolation structure is electrically connected to the first isolation structure, for example, directly or through a third isolation structure SON1 (a third isolation opening is provided on the third isolation structure SON1 , which will be described later).

[0104] Optionally, the second isolation structure is not provided with an isolation opening.

[0105] Optionally, in some other embodiments, the isolation structure SO may not overlap with the first border area NAA1, that is, the isolation structure is not provided in the first border area. 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 binding area Bon. In this embodiment, the isolation structure SO is misaligned with the first border area NAA1, which can further reduce the size of the first border area NAA1.

[0106] Optionally, Figure 4 for Figure 1 A partial enlarged view of Figure 4. In the present embodiment, along the first direction X, the orthographic projection of the second isolation structure SON on the substrate covers at least part of the orthographic projection of the first isolation structure SOA on the substrate (i.e., the isolation structure is located at least part 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 the area is larger than the area of ​​the display area. With such arrangement, along the second direction Y, different first connecting leads L1 are electrically connected to the part located between the first connecting leads L1 through the second isolation structure SON, and the overall structure composed of different first connecting leads L1 and the isolation structures therebetween has a lower impedance, which is beneficial to 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.

[0107] Optionally, Figure 5 for Figure 1 Another partial enlargement of Figure 5 . In the present 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 does not overlap at least partially with the orthographic projection of the second isolation structure SON on the substrate. In other words, in the present embodiment, the second isolation structure SON is a protrusion corresponding to the first connecting lead L1 relative to the display area AA. In the present embodiment, it is possible to ensure that the first isolation structure SOA is electrically connected to the first connecting lead L1, and to reduce the isolation structure in the first border area NAA1, thereby saving costs.

[0108] Optionally, Figure 6 for Figure 1 Another partial enlargement of Figure 6 The connection portion L includes at least two first connection leads L1 arranged along the second direction Y; the connection portion also includes at least one second connection lead L2 extending along the second direction Y, and each second connection lead L2 is connected to at least two first connection leads L1.

[0109] Specifically, in this embodiment, the second connecting lead L2 can electrically connect the corresponding first connecting lead L1 in the second direction Y. Thus, the impedance of the overall structure composed of the first connecting lead L1 and the second connecting lead L2 can be reduced, and the voltage difference between the first electrodes corresponding to different columns of light-emitting elements in the display panel can be further reduced, thereby improving the display unevenness problem.

[0110] Optionally, Figure 7 for Figure 1 Another partial enlargement of Figure 7The connecting portion L further includes at least one third connecting lead L3 extending along the first direction X, a first end of the third connecting lead L3 overlaps at least a portion of the second isolation structure SON, and a 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.

[0111] Specifically, in this embodiment, the third connection lead L3, the second connection lead L2 and the first connection lead L1 cross each other to form a mesh structure, which has a lower impedance, thereby further reducing the voltage difference between the first electrodes corresponding to different columns of light emitting elements in the display panel, thereby improving the display unevenness problem.

[0112] Optionally, continue to refer to Figure 7 , the second connection lead L2 is located between the binding area Bon and the display area AA.

[0113] Specifically, in this embodiment, the first connection lead L1 extends into the binding area Bon but does not exceed the binding area Bon. The second connection lead L2 is wired using the area between the binding area Bon and the display area AA, which can connect the first connection lead L1 without increasing the size of the first frame area NAA1.

[0114] Optionally, continue to refer 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 respectively 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 binding area. The third connecting lead L3 does not extend to the binding area Bon, and the third connecting lead L3 can overlap with the portion of the isolation structure located in the first border area NAA1 (ie, the second isolation structure SON), so that the third connecting lead L3 can also directly transmit signals to the isolation structure. The isolation structure is located in the portion of the display area (ie, the first isolation structure SOA), and both the edge area and the middle area can receive the voltage signal from the connecting part, so that the voltage difference between the areas is further reduced.

[0115] Optionally, continue to refer to Figure 7 , the first connection lead L1 and the third connection lead L3 are evenly distributed in the second direction Y. Such a configuration enables the connection portion to more evenly transmit the voltage signal to the first isolation structure SOA, so that the voltage difference of the voltage signal received by each part of the first isolation structure SOA is smaller, thereby further improving the display unevenness problem.

[0116] Optionally, in the above embodiment, at least part of at least two of the first connecting lead L1, the second connecting lead L2 and the third connecting lead L3 are arranged in the same layer. For example, the second connecting lead L2 and the third connecting lead L3 are arranged in the same layer as the part of the first connecting lead L1 that directly overlaps the second isolation structure SON. The arrangement of this embodiment makes it easier to make electrical connections between the first connecting lead L1, the second connecting lead L2 and the third connecting lead L3, thereby reducing the difficulty of manufacturing the display panel and reducing the manufacturing cost of the display panel.

[0117] Optionally, refer to Figure 2 and Figure 3 The substrate includes a substrate Sub and a driving circuit layer arranged on the substrate Sub, the driving circuit layer includes a preset metal layer close to the first isolation structure SOA, the first connecting lead L1, the second connecting lead L2 and the third connecting lead L3 all include a portion located in the preset metal layer; wherein the portion of the first connecting lead L1 located in the preset metal layer overlaps the second isolation structure SON.

[0118] 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. A plurality of pixel driving circuits are formed in the driving circuit layer, and each pixel driving circuit is used to drive 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 includes multiple metal layers, and the preset metal layer is the metal layer closest to the isolation structure in the multiple metal layers. The portion of the first connecting lead used to overlap with the second isolation structure is provided in the preset metal layer, and the via depth between the portion and the second isolation structure is small, which is convenient for manufacturing. The second connecting lead L2 and the third connecting lead L3 can be further provided in the preset metal layer, and there are more idle areas in the preset metal layer, while other metal layers will be provided with fan-out lines of data lines and other routings, so the setting of this embodiment will not occupy the space of other metal layers, and avoid occupying the area where the fan-out lines of data lines are provided in other metal layers.

[0119] 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, and the preset metal layer is the third metal layer M3. Optionally, the driving circuit layer also includes a fourth metal layer M4 disposed on a side of the third metal layer M3 away from the second metal layer M2, and the preset metal layer is the fourth metal layer. Optionally, the driving circuit layer also includes a fifth metal layer M5 on which the fourth metal layer M4 is away from the third metal layer M3, and the preset metal layer is the fifth metal layer M5.

[0120] Specifically, the pixel driving circuit includes at least two transistors and at least one capacitor. Among them, the active layer Act in the driving circuit layer is used to set the active structure of the transistor, 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 transistor, and the fourth metal layer M4 is used as a switching layer to provide switching between the pixel driving circuit and the second electrode corresponding to the light-emitting element, and can be used to set the power line corresponding to the pixel driving circuit, etc. The fifth metal layer M5 can be used to set the data line, etc. Of course, when the metal layer of the driving circuit layer is other numbers, the preset metal layer may not be the fifth metal layer. The driving circuit layer also includes a gate insulating layer GI between the active layer Act and the first metal layer M1, an interlayer insulating layer CI between the first metal layer M1 and the second metal layer M2, an interlayer dielectric layer ILD between the second metal layer M2 and the third metal layer M3, an inorganic layer PVX and a first planarization layer PLN1 between the third metal layer M3 and the fourth metal layer M4, a second planarization layer PLN2 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.

[0121] Optionally, the display panel further includes a pixel definition layer VPDL, the pixel definition layer VPDL is located between the driving circuit layer and the isolation structure SO, and the pixel definition layer VPDL is formed with a plurality of pixel openings. The pixel openings correspond to the first isolation openings one by one, and along the thickness direction of the display panel, the orthographic projection of the first isolation opening on the substrate Sub is located within the orthographic projection of the corresponding pixel opening on the substrate Sub. The pixel opening exposes the second electrode Ano corresponding to a portion of the light-emitting element. The first electrode Cath corresponding to the light-emitting element is at least partially disposed in the first isolation opening and overlaps 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 element 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 light-emitting colors of the first color light-emitting element, the second color light-emitting element, and the third color light-emitting element are different from each other. For example, the emitted light of the first color light-emitting element is red light, the emitted light of the second color light-emitting element is green light, and the emitted light of the third color light-emitting element is blue light. 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 a side of the first inorganic encapsulation layer CVD1 away from the substrate and covering the entire display area AA and a portion of the frame area NAA. The display panel may also include a second inorganic encapsulation layer covering the organic encapsulation layer IJP.

[0122] Optionally, continue to refer to Figure 2 The second isolation structure SON is connected to the first connection lead L1 through the via Da.

[0123] Specifically, in the present embodiment, after forming the corresponding portion of the first connecting 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. The formation of 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 connecting lead L3; the pixel definition layer VPDL is arranged along the via hole, and the first connecting lead L1 is exposed, and then the second isolation structure is extended along the via hole formed in the pixel definition layer to form a via Da. That is, the via hole of the present embodiment is opened on the insulating layer, and the insulating layer includes the third planarization layer PLN3 and the pixel definition layer VPDL. In some embodiments, each first connecting lead L1 is connected to the second isolation structure only through one via Da, and the size of the overlapping portion of the first connecting lead L1 and the second isolation structure is small, thereby reducing the size of the first border area NAA1. In other embodiments, each first connecting lead L1 is connected to the second isolation structure through at least two vias Da arranged along the first direction X, such as Figure 2 As shown in , each first connection lead L1 overlaps three via holes Da arranged along the first direction X. Thus, the contact resistance between the first connection lead L1 and the isolation structure can be reduced, thereby reducing signal transmission loss, which is beneficial to reducing power consumption of the display panel.

[0124] Optionally, continue to refer to Figure 2 The connecting portion further includes a third isolation structure SON1, which is located in the first frame area NAA1 and is provided with a third isolation opening; a dummy light emitting element is provided in the third isolation opening; and the third isolation structure SON1 is located between the via hole Da and the display area AA.

[0125] Specifically, the third isolation structure SON1 can also be understood as a part of the isolation structure SO, that is, the part of the isolation structure located in the first frame area NAA1 includes the third isolation structure SON1 and the second isolation structure SON, and the second isolation structure SON is connected to the first connection lead L1 through the via Da. The third isolation structure SON1 is continuous with the first isolation structure SON, so that the light-emitting element at the edge of the display area AA is not the outermost light-emitting element during evaporation. In other words, each light-emitting element in the display area AA is not the outermost light-emitting element, so that the uniformity of the evaporation of the light-emitting element in the display area AA can be improved, and the evaporation of the light-emitting element at the edge of the display area can be avoided. Defects. It can be understood that the dummy light-emitting element is not connected to the pixel driving circuit, that is, it is not used for emitting light. In addition, at least one dummy pixel is correspondingly set for each column of pixels corresponding to the display area AA in the first frame area NAA1. Among them, 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.

[0126] Optionally, the third isolation structure is in 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 integrated structure, and further, the third isolation structure is meshed with the first isolation structure.

[0127] Optionally, continue to refer to Figure 3 The display panel further includes a fourth isolation structure SON2 located in the second frame region, wherein the fourth isolation structure SON2 is formed with a fourth isolation opening; a dummy light emitting element is disposed in the fourth isolation opening. The fourth isolation structure SON2 can be understood as the portion of the isolation structure SO located in the second frame region.

[0128] Specifically, the purpose of providing a dummy light-emitting element in the fourth isolation opening is the same as the purpose of providing a dummy light-emitting element in the third isolation opening, that is, both are to improve the uniformity of the evaporation of the light-emitting element in the display area AA. The configuration of this embodiment makes the evaporation of each light-emitting element in the display area AA more uniform, thereby improving the display uniformity. It should be noted that although only the cross-sectional view of the first second border area NAA2 is illustrated in this embodiment, the cross-sectional views of the second second border area NAA3 and the third second border area NAA3 are the same as the cross-sectional view of the first second border area NAA2, and will not be repeated here. In addition, although Figure 3Only one dummy light-emitting element is illustrated, but 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.

[0129] Optionally, the fourth isolation structure is in 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 mesh-connected to the first isolation structure.

[0130] Optionally, refer to Figure 2 The display panel further includes at least one dam Dam surrounding the display area, and a dam opening is provided on the dam Dam. The dam Dam may include a first planarization layer PLN1, a fifth metal layer M5, a third planarization layer PLN3, and a pixel definition layer VPDL. The dam opening is formed by the pixel definition layer VPDL. The dam Dam is used to prevent the organic encapsulation layer IJP from overflowing. The dam opening is used for ventilation, so that the gas released by the organic layer (third planarization layer PLN3) can be released to the outside.

[0131] Optionally, refer to Figure 2 The portion of the driving circuit layer located in the first frame area NAA1 is provided with a plurality of 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 binding area Bon. The power signal lead E1 is used to transmit the first power signal ELVDD in the binding area E1 to the first power signal line in 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 switched from the fourth metal layer M4 to the third metal layer M3.

[0132] Optionally, the portion of the driving circuit layer located in the first frame area NAA1 further includes a plurality of fan-out lines (not shown), one end of the fan-out line is electrically connected to the display area, specifically, it can be electrically connected to the data line in the display area, and the other end of the fan-out line is electrically connected to the binding area. The fan-out line is used to provide data signals for the data line. The fan-out line can be arranged in the second metal layer M2 and / or the first metal layer M1.

[0133] Optionally, Figure 8 A schematic diagram of a circuit structure of a pixel driving circuit provided by an embodiment of the present invention, referring to Figure 8The pixel driving circuit includes a driving module 101, a data writing module 107 and a storage module 104; wherein 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; and the storage module 104 is used to maintain the potential of the control end of the driving module 101.

[0134] Specifically, the specific working process of the pixel driving circuit may include a charging phase and a light-emitting phase. In the charging phase, the data writing module 107 writes the data voltage Vdata into the control terminal of the driving module 101. In the light-emitting phase, 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 according to the data voltage Vdata, so that the corresponding light-emitting element emits light.

[0135] Optionally, continue to refer 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-emitting control module 108, and a second light-emitting control module 109. The first end of the data writing module 107 is connected to the data voltage Vdata, the second end of the data writing module 107 is electrically connected to the first end of the driving module 101, and the control end of the data writing module 107 is connected to the second scanning signal S2. The first end of the threshold compensation module 103 is electrically connected to the second end of the driving module 101, the second end of the threshold compensation module 103 is electrically connected to the control end of the driving module 101, and the control end of the threshold compensation module 103 is connected to the second scanning signal S2. The first end of the first initialization module 105 is connected to the first initialization signal Vref1, the second end of the first initialization module 105 is electrically connected to the control end of the driving module 101, and the control end of the first initialization module 105 is connected to the first scanning signal S1. The first end of the second initialization module 106 is connected to the second initialization signal Vref2, the second end of the second initialization module 106 is electrically connected to the second electrode corresponding to the light-emitting element 102, and the control end of the second initialization module is connected to the first scanning signal S1. The first end of the first light-emitting control module 108 is connected to the first power signal ELVDD, the second end of the first light-emitting control module 108 is electrically connected to the first end of the driving module 101, and the control end of the first light-emitting control module 108 is connected to the light-emitting control signal EM. The first end of the second light-emitting control module 109 is electrically connected to the second end of the driving module 101, the second end of the second light-emitting control module 109 is electrically connected to the second electrode corresponding to the light-emitting element 102, and the control end of the second light-emitting control module 109 is connected to the light-emitting control signal EM. The first end of the storage module 104 is connected to the first power signal ELVDD, and the second end of the storage module 104 is electrically connected to the control end 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 connecting portion described herein.

[0136] The working process of the pixel driving circuit includes an initialization phase, a charging phase and a light-emitting phase.

[0137] In the initialization stage, the first scanning signal S1 controls the first initialization module 105 and the second initialization module 106 to be turned on; the control end of the driving module 101 is reset by the first initialization signal Vref1 to facilitate conduction in the charging stage; the second electrode corresponding to the light-emitting element 102 is written with the second initialization signal Vref2 to prevent residual images caused by the residual signal of the previous frame.

[0138] In the charging stage, the second scanning signal S2 controls the data writing module 107 and the threshold compensation module 103 to be turned on. The data voltage Vdata is written into the control end of the driving module 101 via the data writing module 107, the driving module 101 and the threshold compensation module 103. When the voltage difference between the control end of the driving module 101 and the voltage of the first end thereof is equal to the threshold voltage of the driving module 101, the driving module 101 is turned off, so that the voltage at the control end of the driving module 101 includes the threshold voltage information of the driving module 101. In other words, the compensation of the threshold voltage of the driving module 101 is completed in the charging stage.

[0139] In the light emitting stage, the light emitting control signal EM controls the first light emitting control module 108 and the second light emitting control module 109 to be turned on. 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.

[0140] Exemplarily, the driving module 101 includes a first transistor T1 , a first end of the first transistor T1 serves as a first end of the driving module 101 , a second end of the first transistor T1 serves as a second end of the driving module 101 , and a control end of the first transistor T1 serves as a control end of the driving module 101 .

[0141] The data writing module 107 includes a second transistor T2 , a first end of the second transistor T2 serves as a first end of the data writing module 107 , a second end of the second transistor T2 serves as a second end of the data writing module 107 , and a control end of the second transistor T2 serves as a control end of the data writing module 107 .

[0142] The threshold compensation module 103 includes a third transistor T3 , a first end of the third transistor T3 serves as a first end of the threshold compensation module 103 , a second end of the third transistor T3 serves as a second end of the threshold compensation module 103 , and a control end of the third transistor T3 serves as a control end of the threshold compensation module 103 .

[0143] The first initialization module 105 includes a fourth transistor T4, a first end of the fourth transistor T4 serves as the first end of the first initialization module 105, a second end of the fourth transistor T4 serves as the second end of the first initialization module 105, and a control end of the fourth transistor T4 serves as the control end of the first initialization module 105.

[0144] The first light emitting control module 108 includes a fifth transistor T5, a first end of the fifth transistor T5 serves as the first end of the first light emitting control module 108, a second end of the fifth transistor T5 serves as the second end of the first light emitting control module 108, and a control end of the fifth transistor T5 serves as the control end of the first light emitting control module 108.

[0145] The second light emitting control module 109 includes a sixth transistor T6, a first end of the sixth transistor T6 serves as the first end of the second light emitting control module 109, a second end of the sixth transistor T6 serves as the second end of the second light emitting control module 109, and a control end of the sixth transistor T6 serves as the control end of the second light emitting control module 109.

[0146] The second initialization module 106 includes a seventh transistor T7 , a first end of the seventh transistor T7 serves as a first end of the second initialization module 106 , a second end of the seventh transistor T7 serves as a second end of the second initialization module 106 , and a control end of the seventh transistor T7 serves as a control end of the second initialization module 106 .

[0147] The storage module 104 includes a storage capacitor Cst, a first plate of the storage capacitor Cst serves as a second end of the storage module 104 , and a second plate of the storage capacitor Cst serves as a second end of the storage module 104 .

[0148] It should be noted that the pixel driving circuit may also be other structures. For example, the pixel driving circuit may also be a pixel driving circuit including oxide thin film transistors.

[0149] An embodiment of the present 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 is provided with a binding area; a substrate; a first isolation structure, which is arranged 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 light-emitting elements are arranged in the first isolation openings; a connecting portion, one end of the connecting portion is electrically connected to the first isolation structure, wherein the connecting portion is only located in the first border area.

[0150] The connection part of this embodiment is only arranged in the first frame area, and the connection part can transmit the first electrode voltage transmitted in the binding 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, and the display uniformity of the display panel is better. In addition, in this embodiment, the connection part is only arranged in the first frame area, and only the first frame area has a larger size. In other words, the connection part only needs to extend along the first direction in the first frame area, and does not need to be arranged around the display area. Therefore, only the first frame area has a larger size, and other frame areas of the display panel can be set to a smaller size, or other frame areas are not set, so this embodiment can greatly reduce the frame of the display panel. Optionally, when the display panel also includes at least one second frame area; the second frame area is adjacent to the first frame area, and / or the second frame area is opposite to the first frame area; the second frame area is not provided with a connection part for connecting the isolation structure located in the display area and the binding area.

[0151] Optionally, the other end of the connection portion extends to the binding area. The connection 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 connection lead, the first end of the first connection lead overlaps at least a portion of the second isolation structure, and the second end of the first connection lead extends to the binding area.

[0152] Specifically, the isolation structure in the present embodiment is not only located in the display area, but also in part of the first border area. That is to say, the isolation structure extends from the display area to the first border area. The first connecting lead and the isolation structure are located in different layers, so that the first connecting lead and the isolation structure are electrically connected in the thickness direction of the display panel, which is convenient for manufacturing and ensures the stability of the electrical connection. The stability of the signal transmission between the connecting lead and the isolation structure located in the display area (i.e., the first isolation structure) is ensured. It should be noted that the connecting lead L1 is not limited to being located in only one layer. The connecting lead L1 can be extended to the binding area in one layer and electrically connected to the binding pad, or it can be extended to the binding area by changing the line in multiple layers and electrically connected to the binding pad.

[0153] Optionally, the first connecting lead extends along the first direction; optionally, two first connecting leads are arranged along the second direction, and the first direction intersects the second direction; optionally, the second isolation structure is arranged 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 is not provided with an isolation opening; optionally, the orthographic projection of the second isolation structure on the substrate covers at least part 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 part 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.

[0154] Optionally, the second isolation structure is connected to the first connection lead through a via;

[0155] 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 hole is opened on the insulating layer;

[0156] Optionally, the display panel further comprises a third isolation structure located in the first border region; a dummy light-emitting element is arranged in a third isolation opening formed by the third isolation structure; and the third isolation structure is located between the via hole and the display region. Optionally, the third isolation structure is arranged in 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 meshedly connected to the first isolation structure.

[0157] It should be noted that the display panel in this embodiment may have the same settings and effects as the display panel in the aforementioned embodiments, which will not be described in detail herein.

[0158] The present invention also provides a display device, such as Fig. 9 As shown, Fig. 9 A schematic diagram of the structure of a display device provided in an embodiment of the present invention. The display device includes a display panel provided in any embodiment of the present invention, and the display device may be a mobile phone, a tablet computer, an MP3, an MP4, a videophone, a personal digital assistant, a smart watch, a smart helmet, or other wearable devices. Since the display device provided in an embodiment of the present invention includes a display panel provided in an embodiment of the present invention, it also has the same beneficial effects, which will not be described in detail here.

[0159] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0160] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A display panel, characterized in that: The display panel comprises: A display area and a first frame area arranged along a first direction, wherein the first frame area is provided with a binding area; substrate; 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 light-emitting elements are disposed in the first isolation openings; A connecting portion is disposed in the first border area, and one end of the connecting portion 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 binding area; the connecting portion comprises: a second isolation structure, the second isolation structure being disposed in the first border region and disposed on one side of the substrate; at least one first connecting lead, a first end of the first connecting lead being overlapped with at least a portion of the second isolation structure, and a second end of the first connecting lead extending to the binding region; Preferably, the first connecting lead extends along the first direction; Preferably, the two first connecting leads are arranged along a second direction, and the first direction intersects with the second direction; Preferably, the second isolation structure is arranged at the same layer as the first isolation structure; Preferably, the second isolation structure is electrically connected to the first isolation structure; Preferably, the second isolation structure is not provided with an isolation opening; 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; Preferably, the orthographic projection of the first isolation structure on the substrate covers at least part 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 is at least partially misaligned with the orthographic projection of the second isolation structure on the substrate.

3. The display panel according to claim 2, characterized in that: The connecting portion further includes at least one second connecting lead extending along the second direction, each of the second connecting leads being electrically connected to at least two of the first connecting leads; Preferably, the connecting portion further comprises at least one third connecting lead extending along the first direction, a first end of the third connecting lead overlaps at least a portion of the second isolation structure, and a second end of the third connecting lead is electrically connected to the second connecting lead; Preferably, the first connecting lead, the second connecting lead and the third connecting lead are electrically connected to form a mesh structure.

4. The display panel according to claim 3, 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 two of the first connecting leads, and / or the first connecting lead and the third connecting lead are evenly distributed in the second direction.

5. The display panel according to claim 3, characterized in that: At least parts of at least two of the first connecting lead, the second connecting lead and the third connecting lead are arranged in the same layer; Preferably, the first connecting lead, the second connecting lead and the third connecting lead are at least partially arranged in the same layer.

6. The display panel according to claim 5, 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 connecting lead, the second connecting lead and the third connecting lead each include a portion located in the preset metal layer; wherein the portion of the first connecting lead located in the preset metal layer overlaps the second isolation structure; Preferably, the driving circuit layer comprises an active layer, a first metal layer, a second metal layer, and a third metal layer sequentially stacked on the substrate, and the preset metal layer is the third metal layer; Preferably, the driving circuit layer further includes a fourth metal layer, and the preset metal layer is the fourth metal layer; Preferably, the driving circuit layer further includes a fifth metal layer, and the preset metal layer is the fifth metal layer.

7. The display panel according to claim 2, characterized in that: The second isolation structure is connected to the first connection lead through a via; Preferably, each of the first connecting leads is connected to the second isolation structure through at least two of the vias arranged along the first direction; 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 hole is opened on the insulating layer.

8. The display panel according to claim 7, characterized in that: The connecting portion further includes a third isolation structure, the third isolation structure is located in the first border area; and 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 hole and the display area; Preferably, the third isolation structure is arranged at the same layer as the first isolation structure; Preferably, the third isolation structure is electrically connected to the first isolation structure; Preferably, the third isolation structure, the second isolation structure and the first isolation structure are integrally arranged; Preferably, the third isolation structure is connected to the first isolation structure in a mesh shape.

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

10. The display panel according to claim 9, characterized in that: The display panel further comprises a fourth isolation structure located in the second frame area, wherein the fourth isolation structure is provided with a fourth isolation opening; a dummy light emitting element is provided in the fourth isolation opening; Preferably, the fourth isolation structure is in the same layer as the first isolation structure; Preferably, the fourth isolation structure is electrically connected to the first isolation structure; Preferably, the fourth isolation structure is mesh-connected to the first isolation structure.

11. The display panel according to claim 10, characterized in that: The substrate includes a substrate and a driving circuit layer arranged on the substrate, and a portion of the driving circuit layer located in the second border area is formed with a plurality of dummy pixel driving circuits; each of the dummy pixel driving circuits corresponds to at least one dummy light-emitting element; and the dummy pixel circuit is insulated from the corresponding dummy light-emitting element.

12. The display panel according to claim 1, characterized in that: The substrate comprises a substrate and a driving circuit layer arranged on the substrate, a portion of the driving circuit layer located in the display area is provided with a plurality of pixel driving circuits, and each of the pixel driving circuits is connected to at least one of the light-emitting elements; Preferably, a portion of the driving circuit layer located in the first frame area is provided with a plurality of power signal leads, one end of the power signal lead is electrically connected to the display area, and the other end of the power signal lead extends to the binding area.

13. 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.

14. The display panel according to claim 13, characterized in that: The display panel further includes at least one dam surrounding the display area, the dam being provided with a dam opening.

15. The display panel according to claim 13, characterized in that: The display panel further includes a plurality of first electrodes, wherein the first electrodes are disposed in the isolation openings and located on a side of the light emitting element away from the substrate, wherein the first electrodes overlap the support portion.

16. A display panel, characterized in that: The display panel comprises: A display area and a first frame area arranged along a first direction, wherein the first frame area is provided with a binding area; substrate; 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 light-emitting elements are disposed in the first isolation openings; A connecting portion, one end of which is electrically connected to the first isolation structure, wherein the connecting portion is only located in the first border area.

17. The display panel according to claim 16, characterized in that: The other end of the connecting portion extends to the binding area; the connecting portion comprises: A second isolation structure, the second isolation structure is disposed in the first border area and disposed on one side of the substrate; at least one first connecting lead, wherein a first end of the first connecting lead overlaps at least a portion of the second isolation structure, and a second end of the first connecting lead extends to the binding area; Preferably, the first connecting lead extends along the first direction; Preferably, the two first connecting leads are arranged along a second direction, and the first direction intersects with the second direction; Preferably, the second isolation structure is arranged at the same layer as the first isolation structure; Preferably, the second isolation structure is electrically connected to the first isolation structure; Preferably, the second isolation structure is not provided with an isolation opening; 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; Preferably, the orthographic projection of the first isolation structure on the substrate covers at least part 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 is at least partially misaligned with the orthographic projection of the second isolation structure on the substrate.

18. The display panel according to claim 17, characterized in that: The second isolation structure is connected to the first connection lead through a via; 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 hole is opened on the insulating layer; Preferably, the connecting portion further comprises a third isolation structure, and the third isolation structure is located in the first border 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 hole and the display area; Preferably, the third isolation structure is arranged at the same layer as the first isolation structure; Preferably, the third isolation structure is electrically connected to the first isolation structure; Preferably, the third isolation structure, the second isolation structure and the first isolation structure are integrally arranged; Preferably, the third isolation structure is connected to the first isolation structure in a mesh shape.

19. The display panel according to claim 16, characterized in that: The display panel further includes at least one second frame area; the second frame area and the display area are arranged along a second direction, and / or, along the first direction, the second frame area and the first frame area are located on two opposite sides of the display area; wherein the second direction intersects with the first direction; The second border area is not provided with the connecting portion electrically connecting the first isolation structure and the binding area; 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.

20. A display device, characterized in that: The display device comprises the display panel according to any one of claims 1 to 15, or the display panel according to any one of claims 16 to 19.

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