Display panel and display device

Abstract

The embodiment of the present application provides a display panel and a display device, wherein the display panel has a display area and a non-display area, and the display panel includes: a substrate; an isolation functional layer, which is arranged on one side of the substrate and located in the display area and the non-display area, and the isolation functional layer includes a plurality of isolation functional structures, and an isolation opening located in the display area is opened on the isolation functional layer; a light-emitting layer, including a light-emitting unit located in each isolation opening; a first encapsulation layer, including a first encapsulation portion located on the side of each light-emitting unit away from the substrate, and the first encapsulation portion extends from the isolation opening to the side of the isolation functional layer away from the substrate and covers part of the isolation functional layer; wherein at least one of the plurality of isolation functional structures located in the non-display area is located outside the orthographic projection of the first encapsulation layer on the substrate in its orthographic projection on the substrate. The present application can reduce the complexity of the first encapsulation layer, improve the yield of the display panel, and enhance the process performance of the display panel.

Description

Technical Field

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

[0002] The development of semiconductor technology plays a vital role in the progress of the electronics industry. Organic Light-Emitting Diode (OLED), as a semiconductor display device, has many advantages such as wide viewing angle, thinness, fast response time, high contrast, and autonomous light emission, and has been widely used in various display devices.

[0003] However, the process performance of current OLED display products needs to be improved. Summary of the invention

[0004] Embodiments of the present application provide a display panel and a display device, aiming to improve the process performance of the display panel.

[0005] An embodiment of the first aspect of the present application provides a display panel, the display panel having a display area and a non-display area, the display panel comprising: a substrate; an isolation functional layer, arranged on one side of the substrate and located in the display area and the non-display area, the isolation functional layer comprising a plurality of isolation functional structures, and an isolation opening located in the display area is opened on the isolation functional layer; a light-emitting layer, comprising a light-emitting unit located in each isolation opening; a first encapsulation layer, comprising a first encapsulation portion located on a side of each light-emitting unit away from the substrate, and the first encapsulation portion extends from the isolation opening to a side of the isolation functional layer away from the substrate and covers a portion of the isolation functional layer; wherein at least one of the plurality of isolation functional structures located in the non-display area is located outside the orthographic projection of the first encapsulation layer on the substrate in its orthographic projection.

[0006] According to an implementation of the first aspect of the present application, a plurality of isolation functional structures include an isolation structure, the isolation structure encloses an isolation opening, the isolation structure extends from a display area to a non-display area, the isolation structure includes a plurality of sub-portions, and at least one of the plurality of sub-portions located in the non-display area has an orthographic projection of the substrate outside the orthographic projection of the first encapsulation layer on the substrate.

[0007] According to any of the aforementioned embodiments of the first aspect of the present application, the plurality of sub-portions include an isolation portion located in the display area and an overlap portion located in the non-display area, the isolation portion and the overlap portion are an integrated structure, the isolation portion encloses to form an isolation opening, and an orthographic projection of the overlap portion on the substrate is located outside an orthographic projection of the first encapsulation layer on the substrate;

[0008] The display panel also includes a first signal line located in the non-display area, and the overlapping portion and the first signal line are electrically connected to each other.

[0009] According to any of the aforementioned embodiments of the first aspect of the present application, the materials of the isolation portion and the overlapping portion include conductive materials.

[0010] According to any of the aforementioned embodiments of the first aspect of the present application, the light-emitting unit includes a first electrode, a light-emitting structure and a second electrode stacked in a direction away from the substrate, the first packaging portion is located on the side of the second electrode away from the light-emitting structure, and the second electrode and the isolation portion are electrically connected.

[0011] According to any of the aforementioned embodiments of the first aspect of the present application, the display panel further includes a dam located in the non-display area, the dam is arranged around at least a portion of the display area, and the overlapping portion is located on a side of the dam facing the display area.

[0012] According to any of the aforementioned embodiments of the first aspect of the present application, ventilation holes are provided on the overlapping portion.

[0013] According to any of the aforementioned embodiments of the first aspect of the present application, along the direction from the isolation portion to the overlapping portion, the width of the overlapping portion ranges from 15 μm to 2000 μm.

[0014] According to any of the aforementioned embodiments of the first aspect of the present application, the first signal line is located on the side of the isolation functional layer facing the substrate, a first insulating layer is arranged between the first signal line and the overlapping portion, a first via hole is opened on the first insulating layer, and the overlapping portion and the first signal line are connected via the first via hole.

[0015] According to any of the aforementioned embodiments of the first aspect of the present application, the overlapping portion includes a main body section and a step section that are connected to each other, the main body section is located on the side of the first insulating layer facing away from the substrate, the step section is located in the first via hole, and the step section is located on the side of the main body section facing the substrate to form a step between the main body section and the step section.

[0016] According to any of the aforementioned embodiments of the first aspect of the present application, the multiple sub-parts also include a virtual part connected to the isolation part and located in the non-display area, the isolation part and the virtual part are an integrated structure, the virtual part is enclosed to form a virtual opening, and the light-emitting layer includes a virtual unit located in the virtual opening.

[0017] According to any of the aforementioned embodiments of the first aspect of the present application, the virtual portion is connected between the isolation portion and the overlapping portion, the non-display area includes a virtual area and a wiring area distributed in sequence in a direction away from the display area, the virtual portion is located in the virtual area, and the overlapping portion and part of the first signal line are located in the wiring area.

[0018] According to any of the aforementioned embodiments of the first aspect of the present application, the first packaging layer also includes a second packaging portion located on the side of the virtual unit away from the substrate, and the second packaging portion extends from the virtual opening to the side of the virtual portion away from the substrate and covers at least part of the virtual portion.

[0019] According to any of the aforementioned embodiments of the first aspect of the present application, the second packaging part includes a first segment and a second segment, the first segment is located at the virtual opening, the second segment is connected to the peripheral side of the first segment and extends to the side of the virtual part away from the substrate, and the width of the second segment of the second packaging part close to the overlapping part ranges from 0.5μm to 5μm.

[0020] According to any of the aforementioned embodiments of the first aspect of the present application, the width of the second segment of the second packaging portion close to the overlapping portion is in the range of 0.5 μm to 1 μm.

[0021] According to any of the aforementioned embodiments of the first aspect of the present application, the first packaging part includes a first section and a second section connected to the periphery of the first section, the first section is located on the side of the light-emitting unit away from the substrate, and the second section extends from the first section to the side of the isolation structure away from the substrate.

[0022] According to any of the aforementioned embodiments of the first aspect of the present application, the isolation structure includes a first sublayer and a second sublayer located on the side of the first sublayer facing away from the substrate, the orthographic projection of the first sublayer on the substrate is located within the orthographic projection of the second sublayer on the substrate, and the second portion extends through the side of the first sublayer facing the isolation opening, the side of the second sublayer facing the substrate, and the side of the second sublayer facing the isolation opening to the side of the second sublayer facing away from the substrate.

[0023] According to any of the aforementioned embodiments of the first aspect of the present application, an end of the second section away from the first section is located on a side of the isolation structure away from the substrate and is spaced apart from the isolation structure.

[0024] According to any of the aforementioned embodiments of the first aspect of the present application, the multiple isolation functional structures include an isolation structure and at least one second signal line located in the non-display area, the isolation structure and the second signal line are spaced apart, the isolation structure encloses an isolation opening, and the orthographic projection of the second signal line on the substrate is located outside the orthographic projection of the first packaging layer on the substrate.

[0025] According to any of the aforementioned embodiments of the first aspect of the present application, the second signal line includes a fourth sublayer and a fifth sublayer located on the side of the fourth sublayer facing away from the substrate, and the orthographic projection of the fourth sublayer on the substrate is located within the orthographic projection of the fifth sublayer on the substrate.

[0026] According to any of the aforementioned embodiments of the first aspect of the present application, the isolation structure includes a first sublayer and a second sublayer located on the side of the first sublayer facing away from the substrate, the orthographic projection of the first sublayer on the substrate is located within the orthographic projection of the second sublayer on the substrate, the fourth sublayer and the first sublayer are arranged in the same layer and material, and the fifth sublayer and the second sublayer are arranged in the same layer and material.

[0027] According to any of the aforementioned embodiments of the first aspect of the present application, the second signal line further includes a sixth sublayer, which is located on the side of the fourth sublayer facing the substrate, and the orthographic projection of the fourth sublayer on the substrate is located within the orthographic projection of the sixth sublayer on the substrate.

[0028] According to any of the aforementioned embodiments of the first aspect of the present application, the isolation structure also includes a third sublayer, which is located on the side of the first sublayer facing the substrate, the orthographic projection of the first sublayer on the substrate is located within the orthographic projection of the third sublayer on the substrate, and the sixth sublayer and the third sublayer are arranged in the same layer and material.

[0029] According to any of the aforementioned embodiments of the first aspect of the present application, at least one second signal line includes at least one of a clock signal line, a high-level power signal line, a low-level power signal line, a touch signal line, a voltage reference line and a scan signal line.

[0030] According to any of the aforementioned implementations of the first aspect of the present application, the display panel further includes a shift register circuit located in the non-display area, and an orthographic projection of the second signal line on the substrate and an orthographic projection of the shift register circuit on the substrate at least partially overlap;

[0031] Alternatively, the display panel further includes a voltage reference line, and the second signal line is arranged on a side of the voltage reference line away from the substrate and is in contact with and connected to the voltage reference line.

[0032] According to any of the aforementioned embodiments of the first aspect of the present application, the display panel further includes a plurality of shift register circuits located in the non-display area, and each second signal line is electrically connected to the plurality of shift register circuits through a plurality of second vias.

[0033] According to any of the aforementioned implementations of the first aspect of the present application, the number of shift register circuits is equal to the number of second vias corresponding to each second signal line.

[0034] According to any of the aforementioned embodiments of the first aspect of the present application, the display panel includes a plurality of pixel circuits located in a display area and a voltage reference line located in a non-display area, the pixel circuit includes a reset transistor, the voltage reference line is connected to the reset transistor of each pixel circuit, and the second signal line is arranged on a side of the voltage reference line away from the substrate and is in contact with and connected to the voltage reference line.

[0035] According to any of the aforementioned implementations of the first aspect of the present application, the display panel further includes:

[0036] The second encapsulation layer is located on the side of the first encapsulation layer away from the substrate. The second encapsulation layer extends from the display area to the non-display area. The second encapsulation layer is in contact with and connected to the isolation functional layer not covered by the first encapsulation layer.

[0037] According to any of the aforementioned embodiments of the first aspect of the present application, the display panel includes a dam located in the non-display area, and the isolation functional layer and the second encapsulation layer are located on a side of the dam facing the display area.

[0038] The embodiment of the first aspect of the present application further provides a display panel, the display panel having a display area and a non-display area, and a display panel substrate;

[0039] An isolation functional layer is disposed on one side of the substrate and includes at least one isolation structure and at least one second signal line located in the non-display area, the isolation structure and the second signal line are arranged at intervals, the at least one isolation structure includes an isolation structure located in the display area, and the isolation structure located in the display area encloses an isolation opening;

[0040] A first encapsulation layer, comprising a first encapsulation portion located on a side of each light-emitting unit away from the substrate, and the first encapsulation portion extends from the isolation opening to a side of the isolation functional layer away from the substrate and covers a portion of the isolation functional layer;

[0041] In which, the orthographic projection of the second signal line on the substrate is located outside the orthographic projection of the first packaging layer on the substrate, and / or at least one isolation structure also includes an isolation structure located in the non-display area, the isolation structure located in the display area and the isolation structure located in the non-display area are an integrated structure, and the orthographic projection of the isolation structure located in the non-display area on the substrate is located outside the orthographic projection of the first packaging layer on the substrate.

[0042] According to any of the aforementioned embodiments of the first aspect of the present application, the isolation structure located in the display area includes an isolation portion, the isolation structure located in the non-display area includes an overlap portion, the isolation portion and the overlap portion are an integrated structure, the isolation portion encloses to form an isolation opening, and the second signal line is located on a side of the overlap portion away from the isolation portion;

[0043] The display panel also includes a first signal line located in the non-display area, and the overlapping portion and the first signal line are electrically connected to each other.

[0044] According to any of the aforementioned embodiments of the first aspect of the present application, the orthographic projection of the overlapping portion on the substrate is located outside the orthographic projection of the first packaging layer on the substrate.

[0045] According to any of the aforementioned embodiments of the first aspect of the present application, the light-emitting unit includes a first electrode, a light-emitting structure and a second electrode stacked in a direction away from the substrate, the first packaging portion is located on a side of the second electrode away from the light-emitting structure, the material of the isolation portion and the overlapping portion includes a conductive material, and the second electrode and the isolation portion are electrically connected.

[0046] According to any of the aforementioned embodiments of the first aspect of the present application, the display panel further includes a dam located in the non-display area, the dam is arranged around at least a portion of the display area, and the first signal line and the overlapping portion are located on a side of the dam facing the display area.

[0047] According to any of the aforementioned embodiments of the first aspect of the present application, the first signal line is located on the side of the isolation functional layer facing the substrate, a first insulating layer is arranged between the first signal line and the overlapping portion, a first via hole is opened on the first insulating layer, and the overlapping portion and the first signal line are connected via the first via hole.

[0048] According to any of the aforementioned embodiments of the first aspect of the present application, the isolation structure located in the non-display area also includes a virtual portion located between the isolation portion and the overlapping portion, the isolation portion, the virtual portion and the overlapping portion are integrally connected, the virtual portion encloses a virtual opening, the light-emitting layer includes a virtual unit located in the virtual opening, the first encapsulation layer also includes a second encapsulation portion located on the side of the virtual unit away from the substrate, the second encapsulation portion extends from the virtual opening to the side of the virtual portion away from the substrate and covers at least part of the virtual portion.

[0049] According to any of the aforementioned embodiments of the first aspect of the present application, the first packaging part includes a first section and a second section connected to the periphery of the first section, the first section is located on the side of the light-emitting unit away from the substrate, and the second section extends from the first section to the side of the isolation structure away from the substrate.

[0050] According to any of the aforementioned embodiments of the first aspect of the present application, the isolation structure includes a first sublayer and a second sublayer located on the side of the first sublayer facing away from the substrate, the orthographic projection of the first sublayer on the substrate is located within the orthographic projection of the second sublayer on the substrate, and the second portion extends through the side of the first sublayer facing the isolation opening, the side of the second sublayer facing the substrate, and the side of the second sublayer facing the isolation opening to the side of the second sublayer facing away from the substrate.

[0051] According to any of the aforementioned implementations of the first aspect of the present application, the orthographic projection of the first encapsulation portion on the substrate is located outside the non-display area.

[0052] According to any of the aforementioned implementations of the first aspect of the present application, the orthographic projection of the first encapsulation layer on the substrate is located outside the non-display area.

[0053] According to any of the aforementioned embodiments of the first aspect of the present application, the second signal line includes at least one of a clock signal line, a high-level power signal line, a low-level power signal line, a voltage reference line and a scan signal line.

[0054] According to any of the aforementioned implementations of the first aspect of the present application, the display panel further includes a shift register circuit located in the non-display area, and an orthographic projection of the second signal line on the substrate and an orthographic projection of the shift register circuit on the substrate at least partially overlap;

[0055] Alternatively, the display panel further includes a voltage reference line, and the second signal line is arranged on a side of the voltage reference line away from the substrate and is in contact with and connected to the voltage reference line.

[0056] An embodiment of the second aspect of the present application further provides a display device, comprising the display panel provided by any of the above-mentioned embodiments of the first aspect.

[0057] In the display panel provided in the embodiment of the present application, the display panel includes a substrate, an isolation functional layer, a light-emitting layer and a first encapsulation layer, the light-emitting layer includes a light-emitting unit located in the isolation opening, the light-emitting unit is used to realize the light-emitting display of the display panel, and the isolation functional layer can play a role in isolating adjacent light-emitting units, thereby improving the light mixing effect between different light-emitting units. The first encapsulation layer includes a first encapsulation portion located on the side of the light-emitting unit away from the substrate, the first encapsulation portion can provide encapsulation protection for the light-emitting unit, and the first encapsulation portion covers at least part of the isolation functional layer located in the display area, thereby ensuring the encapsulation effect of the first encapsulation portion. At least one of the multiple isolation functional structures located in the display area is located outside the orthographic projection of the first encapsulation layer on the substrate, that is, at least part of the isolation functional layer in the non-display area is not covered by the first encapsulation layer, which can reduce the complexity of the first encapsulation layer and improve the yield of the display panel on the one hand; on the other hand, it can make the gas introduced or generated during the preparation process overflow from the non-display area, thereby further improving the yield of the display panel, thereby improving the process performance of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] Other features, objects and advantages of the present application will become more apparent by reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings, in which the same or similar reference numerals represent the same or similar features.

[0059] Figure 1 is a structural schematic diagram of a display panel provided in an embodiment of the present application;

[0060] Figure 2 yes Figure 1 A schematic diagram of a local enlarged structure at Q in an example;

[0061] Figure 3 In one example Figure 2 Sectional view at the middle BB;

[0062] Figure 4 In another example Figure 2 Sectional view at the middle BB;

[0063] Figure 5 yes Figure 1 A schematic diagram of a local enlarged structure at P in an example;

[0064] Figure 6 In one example Figure 5 Sectional view at CC;

[0065] Figure 7 In another example Figure 5 Sectional view at CC;

[0066] Figure 8 yes Figure 7 A schematic diagram of a partially enlarged structure in one example.

[0067] Description of reference numerals:

[0068] 100. substrate; 110. driving unit; 120. conductive connection layer; 121. bridge portion; 130. planarization layer;

[0069] 200, isolation functional layer; 210 isolation structure; 211, isolation opening; 212, isolation part; 213, overlap part; 213a, air vent; 214, virtual part; 214a, virtual opening; 220, second signal line; 201, first sublayer; 202, second sublayer; 203, third sublayer;

[0070] 300, light-emitting layer; 310, light-emitting unit; 311, first electrode; 312, light-emitting structure; 313, second electrode; 320, dummy unit;

[0071] 410, first encapsulation layer; 411, first encapsulation part; 411a, first subdivision; 411b, second subdivision; 412, second encapsulation part; 412a, first segment; 412b, second segment; S1, gap; 420, second encapsulation layer; 430, third encapsulation layer;

[0072] 500, first insulating layer; 510, first via hole;

[0073] 600, pixel definition layer; 610, pixel defining portion; 620, pixel opening; 630, extension portion;

[0074] 701, shift register circuit; 702, voltage reference line;

[0075] 800, insulating dielectric layer; 810, second via hole;

[0076] 10. First signal line; 20. Dam;

[0077] X, first direction; Y, second direction; Z, thickness direction; AA, display area; NA, non-display area; NA1, virtual area; NA2, wiring area. DETAILED DESCRIPTION

[0078] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the present application. However, it is obvious to those skilled in the art that the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating examples of the present application. In the accompanying drawings and the following description, at least some of the known structures and technologies are not shown to avoid unnecessary ambiguity in the present application; and, for clarity, the size of some structures may be exaggerated. In addition, the features, structures or characteristics described below may be combined in one or more embodiments in any suitable manner.

[0079] In the description of the present application, it should be noted that, unless otherwise specified, "multiple" means more than two; the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating directions or positional relationships, are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0080] The directional words appearing in the following description are all directions shown in the figures, and do not limit the specific structure of the embodiments of the present application. In the description of the present application, it should also be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0081] In order to better understand this application, Figures 1 to 8 The display panel and the display device according to the embodiment of the present application are described in detail.

[0082] Please also read Figures 1 to 3 , Figure 1 A top view of a display panel provided in an embodiment of the present application, Figure 2 yes Figure 1 Schematic diagram of the local enlarged structure at the middle Q; Figure 3 In one example Figure 2 Cross-sectional view at the middle BB.

[0083] like Figures 1 to 3As shown, an embodiment of the first aspect of the present application provides a display panel, the display panel has a display area AA and a non-display area NA, and the display panel includes a substrate 100, an isolation functional layer 200, a light-emitting layer 300 and a first encapsulation layer 410.

[0084] The isolation functional layer 200 is arranged on one side of the substrate 100 and is located in the display area AA and the non-display area NA. An isolation opening 211 located in the display area AA is opened on the isolation functional layer 200, and the isolation functional layer 200 includes multiple isolation functional structures; the light-emitting layer 300 includes a light-emitting unit 310 located in each isolation opening 211; the first encapsulation layer 410 includes a first encapsulation portion 411 located on the side of each light-emitting unit 310 away from the substrate 100, and the first encapsulation portion 411 extends from the isolation opening 211 to the side of the isolation functional layer 200 away from the substrate 100 and covers a portion of the isolation functional layer 200; wherein, at least one of the multiple isolation functional structures located in the non-display area NA has an orthographic projection on the substrate 100 outside the orthographic projection of the first encapsulation layer 410 on the substrate 100.

[0085] In the display panel provided in the embodiment of the present application, the display panel includes a substrate 100, an isolation functional layer 200, a light-emitting layer 300 and a first encapsulation layer 410. The light-emitting layer 300 includes a light-emitting unit 310 located in the isolation opening 211. The light-emitting unit 310 is used to realize the light-emitting display of the display panel. The isolation functional layer 200 can isolate adjacent light-emitting units 310 and improve the light mixing effect between different light-emitting units 310. The first encapsulation layer 410 includes a first encapsulation portion 411 located on the side of the light-emitting unit 310 away from the substrate 100. The first encapsulation portion 411 can provide encapsulation protection for the light-emitting unit 310. The first encapsulation portion 411 covers a portion of the isolation functional layer 200 located in the display area AA, and can ensure the encapsulation effect of the first encapsulation portion 411. The isolation functional structure of the isolation functional layer 200 of at least one non-display area NA has its orthographic projection on the substrate 100 located outside the orthographic projection of the first encapsulation layer 410 on the substrate 100, that is, the isolation structure of at least one non-display area NA is not covered by the first encapsulation layer 410. On the one hand, this can reduce the complexity of the first encapsulation layer 410 and improve the yield of the display panel; on the other hand, it can allow the gas introduced or generated during the preparation process to overflow from the non-display area NA, further improving the yield of the display panel, and thereby improving the process performance of the display panel.

[0086] Optionally, the plurality of light emitting units 310 are distributed in an array along the first direction X and the second direction Y. The substrate 100 , the isolation function layer 200 and the first encapsulation layer 410 are stacked along the thickness direction Z.

[0087] Optionally, the material of the first encapsulation layer 410 includes an inorganic material, so that the first encapsulation layer 410 has good compactness, and the first encapsulation part 411 can provide better protection for the light-emitting unit 310. The first encapsulation layer 410 has good compactness, so it is difficult for gas to overflow from the first encapsulation layer 410. In the preparation process of the display panel, when some film layers are patterned, gas is inevitably introduced, or gas is generated during the preparation process. In an embodiment of the present application, at least one of the multiple isolation functional structures located in the non-display area NA is not covered by the first encapsulation layer 410, so that gas can overflow from the uncovered area.

[0088] Optionally, the display panel further includes a second encapsulation layer 420, which is disposed on a side of the first encapsulation layer 410 away from the substrate 100. The second encapsulation layer 420 extends from the display area AA to the non-display area NA to provide complete protection for its film structure facing the substrate 100.

[0089] Optionally, the first encapsulation layer 410 is divided into a plurality of mutually independent first encapsulation parts 411, and at least part of the first encapsulation parts 411 are located in the display area AA, and the first encapsulation parts 411 provide sealing protection for the light-emitting unit 310. The second encapsulation layer 420 is a whole layer structure and extends from the display area AA to the non-display area NA to provide comprehensive encapsulation protection.

[0090] Optionally, the isolation functional layer 200 not covered by the first encapsulation layer 410 is in contact with and connected to the second encapsulation layer 420 , so that the second encapsulation layer 420 can provide protection to the isolation functional layer 200 not covered by the first encapsulation layer 410 .

[0091] Optionally, the material of the second encapsulation layer 420 includes an organic material, and the second encapsulation layer 420 may have a suitable thickness, so that the surface of the second encapsulation layer 420 facing away from the substrate 100 is smoother, thereby improving the flatness of the display panel.

[0092] Optionally, the display panel further includes a dam 20, which is disposed in the non-display area NA and surrounds at least a portion of the display area AA. Optionally, the second encapsulation layer 420 is located on a side of the dam 20 facing the display area AA, for example, the dam 20 has a suitable height to prevent the second encapsulation layer 420 from overflowing, and the dam 20 limits the second encapsulation layer 420 to a side thereof facing the display area AA.

[0093] Optionally, the display panel further includes a third encapsulation layer 430, which is located on the side of the second encapsulation layer 420 away from the substrate 100, and extends from the display area AA to the non-display area NA to provide complete protection for its own film layer structure facing the substrate 100.

[0094] Optionally, the material of the third encapsulation layer 430 includes an inorganic material, so that the third encapsulation layer 430 has good compactness, which can improve the encapsulation effect of the display panel.

[0095] Optionally, the third encapsulation layer 430 extends at least to the dam 20 , and the third encapsulation layer 430 may cover at least a portion of the surface of the dam 20 , or the third encapsulation layer 430 covers the dam 20 and extends outside the dam 20 , so that the third encapsulation layer 430 may provide more comprehensive sealing protection.

[0096] In some embodiments, the first encapsulation layer 410 generally extends outside the dam 20, and the first encapsulation layer 410 is in contact with and connected to the third encapsulation layer 430 on the dam 20. In the embodiment of the present application, the first encapsulation layer 410 does not extend to the dam 20, and the first encapsulation layer 410 may be located in the display area AA, or the first encapsulation layer 410 extends to the non-display area NA and does not extend to the dam 20, and the edge of the first encapsulation layer 410 is spaced apart from the dam 20 in the non-display area NA, so that the isolation functional layer 200 on the side of the dam 20 facing the display area AA can be not covered by the first encapsulation layer 410, so as to reduce the complexity of the first encapsulation layer 410 and improve the yield of the display panel; on the other hand, the gas introduced or generated during the preparation process can overflow from the non-display area NA, further improving the yield of the display panel, and then improving the process performance of the display panel.

[0097] There are many ways to set the substrate 100. The substrate 100 may include a substrate and a first conductive layer, a second conductive layer, and a third conductive layer that are arranged on one side of the substrate and are stacked. An insulating layer is provided between adjacent conductive layers. Exemplarily, a pixel circuit is also provided on the substrate 100, and the pixel circuit includes a transistor and a storage capacitor. The transistor includes a semiconductor, a gate, a source and a drain. The storage capacitor includes a first plate and a second plate. As an example, the gate and the first plate may be located in the first conductive layer, the second plate may be located in the second conductive layer, and the source and the drain may be located in the third conductive layer.

[0098] There are many ways to set up the multiple isolation functional structures. The multiple isolation functional structures may include an isolation structure 210, and the isolation structure 210 encloses the above-mentioned isolation opening 211. The multiple isolation functional structures may also include a second signal line 220 located in the non-display area NA. The second signal line 220 and the isolation structure 210 may be prepared and formed in the same process, which can simplify the preparation process of the display panel.

[0099] In some optional embodiments, please continue to refer to Figures 1 to 4, multiple isolation functional structures include an isolation structure 210, the isolation structure 210 encloses the above-mentioned isolation opening 211, the isolation structure 210 extends from the display area AA to the non-display area NA, the isolation structure 210 includes multiple sub-portions, and at least one of the multiple sub-portions located in the non-display area NA is located outside the orthographic projection of the first encapsulation layer 410 on the substrate 100 in the orthographic projection of the substrate 100.

[0100] In these optional embodiments, the plurality of isolation functional structures include an isolation structure 210, which extends from the display area AA to the non-display area NA. The isolation structure 210 of the display area AA encloses an isolation opening 211 to accommodate the light-emitting unit 310. At least one of the plurality of sub-portions of the non-display area NA is located outside the orthographic projection of the first encapsulation layer 410 on the substrate 100 in terms of the orthographic projection of the substrate 100, that is, at least one of the plurality of sub-portions of the non-display area NA is not covered by the first encapsulation layer 410. On the one hand, the complexity of the first encapsulation layer 410 can be reduced, thereby improving the yield of the display panel. On the other hand, the gas introduced or generated during the preparation process can overflow from the isolation structure 210 of the non-display area NA, thereby further improving the yield of the display panel, thereby improving the process performance of the display panel.

[0101] Please also read Figure 1 , Figures 5 and 6 In some optional embodiments, the multiple sub-portions include an isolation portion 212 located in the display area AA and a overlapping portion 213 located in the non-display area NA, the isolation opening 211 is arranged in the isolation portion 212, and the overlapping portion 213 is located outside the orthographic projection of the first encapsulation layer 410 on the substrate 100; the display panel also includes a first signal line 10 located in the non-display area NA, and the overlapping portion 213 and the first signal line 10 are electrically connected to each other.

[0102] In these optional embodiments, the isolation structure 210 extends from the display area AA to the non-display area NA, the portion of the isolation structure 210 located in the display area AA constitutes an isolation portion 212, and the portion of the isolation structure 210 located in the non-display area NA constitutes a overlapping portion 213, and the overlapping portion 213 and the first signal line 10 are electrically connected to each other, so that the isolation portion 212 can lead the signal to the first signal line 10 through the overlapping portion 213.

[0103] Optionally, the isolation portion 212 and the overlapping portion 213 are sub-components of the isolation structure 210 in different areas of the display panel (such as the display area AA and the non-display area NA), and the isolation portion 212 and the overlapping portion 213 are an integrated structure, that is, there is no disconnection between the isolation portion 212 located in the display area AA and the overlapping portion 213 located in the non-display area NA, the isolation portion 212 and the overlapping portion 213 are an integral structure, and the materials constituting the isolation portion 212 and the overlapping portion 213 extend continuously in the display area AA and the non-display area NA, and the isolation portion 212 and the overlapping portion 213 are prepared and formed in the same process step, which can simplify the preparation process of the display panel.

[0104] Optionally, the materials of the isolation portion 212 and the bridging portion 213 include conductive materials, so that the isolation portion 212 can be electrically connected to the first signal line 10 through the bridging portion 213. Figure 5 yes Figure 1 Schematic diagram of the local enlarged structure at the middle Q, Figure 1 The first signal line 10 is arranged at the middle Q, and the first signal line 10 may not be arranged at other positions of the display panel. Alternatively, the first signal line 10 may also be arranged at other positions.

[0105] Optionally, the orthographic projection of the overlapping portion 213 on the substrate 100 is located outside the orthographic projection of the first encapsulation layer 410 on the substrate 100. That is, the overlapping portion 213 is not covered by the first encapsulation layer 410, so as to reduce the complexity of the first encapsulation layer 410 and improve the yield of the display panel; it can also allow the gas introduced or generated during the preparation process to overflow from the non-display area NA, further improving the yield of the display panel, and then improving the process performance of the display panel.

[0106] Optionally, the overlapping portion 213 may be in contact with and connected to the second encapsulation layer 420 , so that the second encapsulation layer 420 can provide encapsulation protection for the overlapping portion 213 .

[0107] Optionally, the light-emitting unit 310 includes a first electrode 311, a light-emitting structure 312 and a second electrode 313 stacked in a direction away from the substrate 100, the first packaging portion 411 is located on a side of the second electrode 313 away from the light-emitting structure 312, and the second electrode 313 and the isolation portion 212 are electrically connected.

[0108] In these optional embodiments, multiple second electrodes 313 are arranged independently of each other, and the isolation structure 210 includes a conductive material, so that the second electrode 313 can be electrically connected to the isolation portion 212, the second electrode 313 can be interconnected into a surface electrode through the isolation portion 212, and the isolation portion 212 and the overlapping portion 213 are electrically connected to each other, so that the multiple second electrodes 313 can be electrically connected to the first signal line 10 via the isolation portion 212, the overlapping portion 213 and the first signal line 10, and the first signal line 10 can send a control signal to the second electrode 313.

[0109] Optionally, the first signal line 10 is configured as a first fixed voltage, for example, the first signal line 10 is configured as a negative power supply voltage signal line VSS, so that the negative power supply voltage signal line can be electrically connected through the overlapping portion 213 , the isolation portion 212 and the second electrode 313 .

[0110] Optionally, along the direction from the isolation portion 212 to the overlap portion 213, the width of the overlap portion 213 is 15μm~2000μm. This can improve the overlap between the overlap portion 213 and the first signal line 10 due to the small size of the overlap portion 213, and can also improve the distribution area of ​​the display area AA due to the large size of the overlap portion 213. Optionally, the display panel can be used for watches, mobile phones, folding mobile phones, tablet computers, laptops, and televisions. In these products of different sizes, the size of the overlap portion 213 cannot be set differently. For example, when the display panel is used for a mobile phone, along the direction from the isolation portion 212 to the overlap portion 213, the width of the overlap portion 213 is 80μm~120μm. For example, when the display panel is used for a mobile phone, along the direction from the isolation portion 212 to the overlap portion 213, the width of the overlap portion 213 is 80μm, 90μm, 95μm, 100μm, 115μm, 120μm, etc. When the display panel is used in a watch, the width of the overlapping portion 213 along the direction from the isolation portion 212 to the overlapping portion 213 is 20μm-30μm. For example, when the display panel is used in a watch, the width of the overlapping portion 213 along the direction from the isolation portion 212 to the overlapping portion 213 is 20μm, 22μm, 25.5μm, 26μm, 28μm, 30μm, etc.

[0111] Optionally, the display panel further includes a pixel definition layer 600 , the pixel definition layer 600 includes a pixel defining portion 610 and a pixel opening 620 opened in the pixel defining portion 610 , the pixel opening 620 is connected to the isolation opening 211 , and the light emitting structure 312 is located in the pixel opening 620 .

[0112] Optionally, the second electrode 313 may be connected to the inner surface of the isolation portion 212 facing the isolation opening 211 , so that the second electrode 313 and the isolation portion 212 are electrically connected to each other.

[0113] As described above, when the display panel includes the dam 20 , the overlap portion 213 may be located on the side of the dam 20 facing the display area AA, so that the overlap portion 213 does not need to extend along the dam 20 , thereby improving the yield of the overlap portion 213 .

[0114] Optionally, a vent hole 213a is provided on the overlap portion 213, and optionally, the vent hole 213a is provided through the overlap portion 213. On the one hand, the vent hole 213a can improve the light transmittance of the isolation structure 210, thereby improving the light transmittance of the display panel. In addition, the vent hole 213a is provided on the overlap portion 213, and the isolation opening 211 is provided on the isolation portion 212, so that the distribution density of the conductive material on the overlap portion 213 is close to the distribution density of the conductive material on the isolation portion 212, and the reflectivity of the overlap portion 213 and the isolation portion 212 are close, so as to improve the display difference between the display area AA and the non-display area NA. The vent hole 213a can also facilitate gas permeation, thereby improving the yield of the display panel.

[0115] Optionally, the first signal line 10 is also provided with an air hole (not shown in the figure), which is provided through the first signal line 10 and is used to allow gas to pass through.

[0116] Optionally, the first signal line 10 may also extend to the dam 20 , and the first signal line 10 extends from the dam 20 to a side of the dam 20 away from the display area AA.

[0117] Optionally, the first signal line 10 is located on the side of the isolation functional layer 200 facing the substrate 100, a first insulating layer 500 is provided between the first signal line 10 and the overlapped portion 213, a first via hole 510 is provided on the first insulating layer 500, and the overlapped portion 213 and the first signal line 10 are connected via the first via hole 510. In these embodiments, the overlapped portion 213 and the first signal line 10 are connected via the first via hole 510 on the first insulating layer 500. In other embodiments, no insulating layer may be provided between the overlapped portion 213 and the first signal line 10, and the overlapped portion 213 and the first signal line 10 are directly contacted and connected, so as to increase the contact area between the overlapped portion 213 and the first signal line 10 and reduce the voltage drop.

[0118] Optional, such as Figure 6 As shown, the number of the first via hole 510 may be 1, or Figure 7 As shown, the number of the first via holes 510 may also be multiple, for example, the number of the first via holes 510 may be 2, 3 or more.

[0119] Optionally, the overlapping portion 213 includes a main body section 213b and a terrace section 213c connected to each other, the main body section 213b is located on the side of the first insulating layer 500 away from the substrate 100, the terrace section 213c is located in the first via hole 510, and the terrace section 213c is located on the side of the main body section 213b facing the substrate 100, so as to form a step between the main body section 213b and the terrace section 213c. The terrace section 213c falls into the first via hole 510, and the terrace section 213c flows toward the substrate 100, resulting in a height difference between the terrace section 213c and the main body section 213b, thereby forming a step.

[0120] Optionally, the first insulating layer 500 may be provided in the same layer and the same material as the pixel defining portion 610. In other embodiments, the first insulating layer 500 may also be provided in a different layer from the pixel defining portion 610. For example, when the display panel includes a planarization layer 130, and the first signal line 10 is provided on a side of the planarization layer 130 away from the pixel defining layer 600, the first insulating layer 500 may include a portion of the planarization layer 130 and the pixel defining layer 600 at the same time.

[0121] Optionally, a conductive connection layer 120 and a driving unit 110 are provided on the substrate 100, a bridge portion 121 is provided in the conductive connection layer 120, and the first electrode 311 is electrically connected to the driving unit 110 via the bridge portion 121. Optionally, the first signal line 10 and the bridge portion 121 can be provided in the same layer, so that the first signal line 10 is provided as close as possible to the overlapping portion 213, thereby reducing the distance between the overlapping portion 213 and the first signal line 10.

[0122] Optionally, a planarization layer 130 is disposed between the conductive connection layer 120 and the first electrode 311 to improve the planarization degree of the substrate 100 .

[0123] Optionally, the isolation portion 212 and the overlapping portion 213 may be directly connected to each other to reduce the distance between the isolation portion 212 and the overlapping portion 213 and reduce the signal transmission distance.

[0124] In some other optional embodiments, such as Figures 1 to 7 As shown, the plurality of sub-sections further include a virtual section 214 , the virtual section 214 encloses and forms a virtual opening 214 a , and the light emitting layer 300 includes a virtual unit 320 located in the virtual opening 214 a .

[0125] Optional, such as Figures 1 to 4 As shown, the isolation structure 210 may include a dummy portion 214 and an isolation portion 212. Alternatively, as shown in FIG. Figures 5 to 7 As shown, the isolation structure 210 includes an isolation portion 212 , a dummy portion 214 and a strap portion 213 , wherein the dummy portion 214 is connected between the isolation portion 212 and the strap portion 213 .

[0126] In these optional embodiments, the virtual portion 214 includes a virtual opening 214a, and virtual units 320 are arranged in the virtual opening 214a. These virtual units 320 may not be used for luminescence. These virtual units 320 are used during the preparation process to appropriately expand the distribution range of the luminescent material to improve the problem that the luminescent material does not fall into some isolation openings 211 due to process errors.

[0127] Optionally, the non-display area NA includes a dummy area NA1 and a wiring area NA2 sequentially distributed in a direction away from the display area AA, the dummy portion 214 is located in the dummy area NA1, and the overlapping portion 213 and at least part of the first signal line 10 are located in the wiring area NA2, so that the first signal line 10 can be misaligned with the dummy portion 214.

[0128] Optionally, the isolation portion 212, the overlapping portion 213 and the virtual portion 214 are sub-components of the isolation structure 210 in different areas of the display panel (such as the display area AA and the non-display area NA), and the isolation portion 212, the overlapping portion 213 and the virtual portion 214 are an integrated structure, that is, there is no disconnection between the isolation portion 212 located in the display area AA and the virtual portion 214 and the overlapping portion 213 located in the non-display area NA, that is, there is no disconnection between the isolation portion 212 and the virtual portion 214, and there is no disconnection between the virtual portion 214 and the overlapping portion 213. The isolation portion 212, the virtual portion 214 and the overlapping portion 213 are an integral structure, and the materials constituting the isolation portion 212, the virtual portion 214 and the overlapping portion 213 extend continuously in the display area AA and the non-display area NA. The isolation portion 212, the overlapping portion 213 and the virtual portion 214 can be prepared and formed in the same process step to simplify the preparation process of the display panel.

[0129] The first packaging material may not be disposed on the dummy unit 320 and the dummy unit 320 may be directly in contact with and connected to the second packaging layer 420 .

[0130] Alternatively, in some other optional embodiments, the first packaging layer 410 also includes a second packaging portion 412 located on the side of the virtual unit 320 away from the substrate 100, and the second packaging portion 412 extends from the virtual opening 214a to the side of the virtual portion 214 away from the substrate 100 and covers at least a portion of the virtual portion 214.

[0131] In these optional embodiments, the first encapsulation layer 410 further includes a second encapsulation portion 412 for encapsulating the dummy unit 320, and the second encapsulation portion 412 may cover at least a portion of the surface of the dummy portion 214. By providing the second encapsulation portion 412, the distribution area of ​​the first encapsulation layer 410 can be increased, and the situation in which part of the light-emitting unit 310 is not covered due to process errors can be improved.

[0132] In an embodiment of the present application, by providing a virtual unit 320 and a second packaging unit 412, the virtual unit 320 and the light-emitting unit 310 can be prepared and formed in the same process step, and the second packaging unit 412 and the first packaging unit 411 can be prepared and formed in the same process step, which can simplify the preparation process of the display panel and improve the yield of the display panel.

[0133] Optional, such as Figure 6As shown, the second packaging part 412 includes a first segment 412a and a second segment 412b, the first segment 412a is located at the virtual opening 214a, the second segment 412b is connected to the peripheral side of the first segment 412a and extends to the side of the virtual part 214 away from the substrate 100, and the width d of the second segment 412b of the second packaging part 412 near the overlapping part 213 is 0.5μm~5μm. For example, the width d of the second segment 412b of the second packaging part 412 near the overlapping part is 0.5μm, 0.6μm, 0.8μm, 0.92μm, 1.0μm, 1.35μm, 1.5μm, etc. This can improve the problem that the second segment 412b is too long to cover more virtual parts 214, and can also improve the problem that the second segment 412b is too short to provide packaging protection for the virtual unit 320. Optionally, the width of the second segment 412b of the second encapsulation part 412 near the overlapping part 213 is 0.5μm-1μm; for example, the width of the second segment 412b of the second encapsulation part 412 near the overlapping part 213 is 0.5μm, 0.6μm, 0.8μm, 0.92μm, 1.0μm, etc. The second encapsulation part 412 near the overlapping part 213 refers to the second encapsulation part 412 adjacent to the overlapping part 213 among the plurality of second encapsulation parts 412, or the second encapsulation part 412 adjacent to the wiring area NA2, and the second encapsulation part 412 farthest from the isolation part 212.

[0134] Optionally, a dummy electrode may be provided between the dummy unit 320 and the second encapsulation portion 412 , and the dummy electrode and the second electrode 313 may be manufactured and formed in the same process step to simplify the manufacturing process of the display panel.

[0135] Optionally, the dummy portion 214 is located in the non-display area NA to prevent the dummy portion 214 from affecting the display effect of the display area AA.

[0136] In some optional embodiments, such as Figures 1 to 8 As shown, the first packaging part 411 includes a first section 411a and a second section 411b connected to the periphery of the first section 411a. The first section 411a is located on the side of the light-emitting unit 310 away from the substrate 100, and the second section 411b extends from the first section 411a to the side of the isolation structure 210 away from the substrate 100.

[0137] In these optional embodiments, the first packaging portion 411 includes a first division 411a and a second division 411b. The first division 411a is used to encapsulate the light-emitting unit 310. The second division 411b is connected to the peripheral side of the first division 411a and extends to the isolation structure 210. It can improve the intrusion of water and oxygen from the peripheral side of the first division 411a to the light-emitting unit 310, increase the length of the water and oxygen intrusion path, and improve the packaging effect.

[0138] There are many ways to set up the isolation structure 210. The isolation structure 210 can be a single-layer structure. The isolation structure 210 has a bottom surface facing the substrate 100 and a top surface away from the substrate 100. The size of the bottom surface is smaller than the size of the top surface to form a concave under the top surface to separate the light-emitting material into independent light-emitting units 310.

[0139] In some other optional embodiments, the isolation structure 210 includes a first sublayer 201 and a second sublayer 202 located on the side of the first sublayer 201 facing away from the substrate 100 , and the orthographic projection of the first sublayer 201 on the substrate 100 is located within the orthographic projection of the second sublayer 202 on the substrate 100 .

[0140] In these optional embodiments, the size of the first sublayer 201 is smaller than the size of the second sublayer 202, so that a concave can be formed under the second sublayer 202. In the process of preparing the light-emitting unit 310, when the light-emitting material falls on the isolation structure 210, it is difficult for the light-emitting material to fall into the concave, so that the light-emitting material is broken at the edge of the second sublayer 202 into independent light-emitting units 310.

[0141] When the isolation structure 210 includes a first sublayer 201 and a second sublayer 202, the second portion 411b can extend through a side of the first sublayer 201 toward the isolation opening 211, a side of the second sublayer 202 toward the substrate 100, and a side of the second sublayer 202 toward the isolation opening 211 to a side of the second sublayer 202 away from the substrate 100.

[0142] In these optional embodiments, the second sub-layer 202 extends onto the second sub-layer 202 along a tortuous path, which can increase the difficulty of water and oxygen intrusion.

[0143] Optionally, one end of the second portion 411 b away from the first portion 411 a is located on a side of the isolation structure 210 away from the substrate 100 and is spaced apart from the isolation structure 210 .

[0144] During the preparation of the display panel, the luminescent material will also fall on the isolation structure 210, that is, on the second sub-layer 202. When the first encapsulation part 411 is subsequently prepared, the first encapsulation part 411 will cover the luminescent material located on the second sub-layer 202. After the preparation of the first encapsulation part 411 is completed, this part of the luminescent material can be removed, so that the end of the second sub-part 411b away from the first sub-part 411a is located on the side of the isolation structure 210 away from the substrate 100 and is spaced from the isolation structure 210, so as to prevent water and oxygen from extending from this part of the luminescent material toward the isolation opening 211.

[0145] Optionally, when the isolation structure 210 includes the first sublayer 201 and the second sublayer 202, the second electrode 313 may be electrically connected to the first sublayer 201. Alternatively, the second electrode 313 may be electrically connected to both the first sublayer 201 and the second sublayer 202 to reduce the voltage drop of the second electrode 313.

[0146] Optionally, the isolation structure 210 may also be located in the third sublayer 203 on the side of the first sublayer 201 facing the substrate 100, and the orthographic projection of the first sublayer 201 on the substrate 100 is located within the orthographic projection of the third sublayer 203 on the substrate 100. By providing the third sublayer 203, during the preparation process of the isolation functional layer 200, when the first sublayer 201 is side-engraved so that the size of the first sublayer 201 is smaller than that of the second sublayer 202, the third sublayer 203 can provide protection for the film layer on the side of the isolation functional layer 200 facing the substrate 100.

[0147] Optionally, the second electrode 313 and the third sublayer 203 are electrically connected to each other, which can increase the distribution area of ​​the conductive material and reduce the voltage drop of the second electrode 313. For example, the second electrode 313 covers the third sublayer 203 exposed by the isolation opening 211. The first sub-portion 411a can also cover this part of the second electrode 313.

[0148] Optionally, in the first packaging portion 411, the first sub-portion 411a can be considered as a portion in contact with the first electrode 311, and the second sub-portion 411b is connected to the peripheral side of the first sub-portion 411a and extends to the side of the isolation structure 210 away from the substrate 100. The difference between the first sub-portion 411a and the second sub-portion 411b is that they are located in different positions, and the first sub-portion 411a and the second sub-portion 411b can be integrally formed.

[0149] Optionally, the isolation functional layer 200 is located on a side of the pixel defining portion 610 facing away from the substrate 100 , or a clearance opening is provided on the pixel defining portion 610 , and the isolation functional layer 200 is located in the clearance opening.

[0150] When the isolation structure 210 is disposed on the side of the pixel defining portion 610 away from the substrate 100, at least part of the surface of the pixel defining portion 610 is exposed by the isolation opening 211, and the first sub-portion 411a also covers at least part of the surface of the pixel defining portion 610 away from the substrate 100 to further improve the sealing effect.

[0151] Optionally, the second encapsulation part 412 may be arranged in a shape different from or the same as the first encapsulation part 411. For example, the second encapsulation part 412 and the first encapsulation part 411 may have the same shape to further simplify the manufacturing process of the display panel.

[0152] Optionally, the second encapsulation portion includes a third section and a fourth section connected to the peripheral side of the third section, the third section is located on the side of the dummy unit 320 away from the substrate 100, and the fourth section extends from the third section to the side of the isolation structure 210 away from the substrate 100. In these optional embodiments, the second encapsulation portion 412 includes a third section and a fourth section, the third section is used to encapsulate the light-emitting unit 310, and the fourth section is connected to the peripheral side of the third section and extends to the isolation structure 210, for example, extends to the dummy section 214.

[0153] When the isolation structure 210 includes a first sublayer 201 and a second sublayer 202, the fourth section can extend through a side of the first sublayer 201 toward the virtual opening 214a, a side of the second sublayer 202 toward the substrate 100, and a side of the second sublayer 202 toward the virtual opening 214a to a side of the second sublayer 202 away from the substrate 100.

[0154] Optionally, an end of the fourth portion away from the first portion 411 a is located on a side of the isolation structure 210 away from the substrate 100 and is spaced apart from the isolation structure 210 .

[0155] Optionally, the third portion may also cover the surface of the pixel defining portion 610 and the surface of the third sublayer 203 .

[0156] Optionally, in any of the above embodiments, in the display area AA, there is a gap S1 between adjacent first encapsulation parts 411, for example, there is a gap S1 between adjacent second subparts 411b of the first encapsulation parts 411. The isolation structure 210 exposed by the gap S1 can be directly connected to the second encapsulation layer 420.

[0157] Optionally, during the preparation of the display panel, the first encapsulation layer 410 may only cover the isolation portion 212 and the dummy portion 214, and the first encapsulation layer 410 may be patterned to form the first encapsulation portion 411 and the second encapsulation portion 412. The overlapping portion 213 is exposed from the first encapsulation layer 410, that is, the overlapping portion 213 is not covered by the first encapsulation layer 410, and the gas generated during the preparation process may overflow from the area where the encapsulation portion is located.

[0158] In some optional embodiments, such as Figures 1 to 4 As shown, multiple isolation functional structures include an isolation structure 210 and a second signal line 220 located in the non-display area NA, the isolation structure 210 and the second signal line 220 are arranged at intervals, the isolation opening 211 is arranged in the isolation structure 210, and the orthographic projection of the second signal line 220 on the substrate 100 is located outside the orthographic projection of the first encapsulation layer 410 on the substrate 100.

[0159] In these optional embodiments, the isolation functional layer 200 not only includes an isolation structure 210, but also includes at least one second signal line 220 located in the non-display area NA. The isolation structure 210 and the second signal line 220 are arranged at intervals, that is, the isolation structure 210 and the second signal line 220 are not an integral structure, and there is a disconnection between the isolation structure 210 and the second signal line 220. The materials constituting the isolation portion 212 and the second signal line 220 do not extend continuously in the display panel. However, the materials of the isolation portion 212 and the second signal line 220 can be the same, the isolation structure 210 and the second signal line 220 can be used to transmit different signals, and the second signal line 220 and the isolation structure 210 can be prepared and formed in the same process step, which can simplify the preparation process of the display panel. The second signal line 220 in the non-display area NA is not covered by the first packaging layer 410, and no first packaging portion 411 with a complex shape will be formed on the second signal line 220, which can simplify the film structure of the display panel. In addition, the gas introduced or generated during the preparation process can overflow from the second signal line 220 or its surrounding side, further improving the yield of the display panel and thereby improving the process performance of the display panel.

[0160] Optionally, the second signal line 220 may be a single-layer structure, in which case the second signal line 220 may be disposed in the same layer as any layer of the isolation structure. For example, when the isolation portion 212 includes the first sub-layer 201 and the second sub-layer 202, the second signal line 220 may be disposed in the same layer as one of the first sub-layer 201 and the second sub-layer 202; when the isolation portion 212 includes the first sub-layer 201, the second sub-layer 202, and the third sub-layer 203, the second signal line 220 may be disposed in the same layer as one of the first sub-layer 201, the second sub-layer 202, and the third sub-layer 203.

[0161] In some other optional embodiments, the second signal line 220 includes a fourth sublayer and a fifth sublayer located on the side of the fourth sublayer away from the substrate 100, and the orthographic projection of the fourth sublayer on the substrate 100 is located within the orthographic projection of the fifth sublayer on the substrate 100. The second signal line 220 is a two-layer structure, so that the structure of the second signal line 220 is closer to that of the isolation portion 212.

[0162] For example, when the isolation structure 210 includes the above-mentioned first sublayer 201 and second sublayer 202, the fourth sublayer and the first sublayer 201 are set in the same layer and material, and the fifth sublayer and the second sublayer 202 are set in the same layer and material, so that the second signal line 220 can be prepared and formed in the same process step as the isolation part 212.

[0163] In some optional embodiments, the second signal line 220 further includes a sixth sublayer, which is located on the side of the fourth sublayer facing the substrate 100 , and the orthographic projection of the fourth sublayer on the substrate 100 is located within the orthographic projection of the sixth sublayer on the substrate 100 .

[0164] For example, when the isolation structure 210 includes the above-mentioned first sublayer 201, second sublayer 202 and third sublayer 203, the sixth sublayer and the third sublayer 203 are set in the same layer and material, so that the second signal line 220 and the isolation structure 210 have the same layer structure, and the second signal line 220 and the isolation structure 210 can be prepared and formed in the same process step.

[0165] Optionally, when the display panel includes the second encapsulation layer 420 , the second signal line 220 and the second encapsulation layer 420 may be directly contacted and connected, so that the second encapsulation layer 420 can provide encapsulation protection for the second signal line 220 .

[0166] Optionally, the isolation structure 210 includes the above-mentioned isolation portion 212 and the dummy portion 214, and the second signal line 220 is located on a side of the dummy portion 214 away from the isolation portion 212. Optionally, the isolation structure 210 may further include the above-mentioned dummy portion 214.

[0167] Optionally, during the preparation of the display panel, when preparing the first encapsulation layer 410, the coverage of the first encapsulation layer 410 may be located in the display area AA, that is, the first encapsulation layer 410 only covers the isolation portion 212. Alternatively, the first encapsulation layer 410 extends from the display area AA to the non-display area NA and covers the isolation portion 212 and the dummy portion 214, that is, the first encapsulation layer 410 only covers the isolation portion 212 and the dummy portion 214, and the overlap portion 213 and the second signal line 220 are exposed from the first encapsulation layer 410.

[0168] Optionally, the orthographic projection of the first encapsulation portion 411 on the substrate 100 is located outside the non-display area NA, that is, the first encapsulation portion 411 is only located in the display area AA and covers the isolation portion 212, which can simplify the structure of the first encapsulation layer 410 and improve the extension of water vapor from the non-display area NA to the display area AA along the first encapsulation layer 410.

[0169] Optionally, the orthographic projection of the first encapsulation layer 410 on the substrate 100 is located outside the non-display area NA, that is, the first encapsulation layer 410 is only located in the display area AA and covers the isolation portion 212, which can simplify the structure of the first encapsulation layer 410 and improve the extension of water vapor from the non-display area NA to the display area AA along the first encapsulation layer 410.

[0170] Alternatively, when the display panel also includes a third encapsulation layer 430, the first encapsulation layer 410 can be prepared using the same process equipment as the third encapsulation layer 430, the first encapsulation material covers the display area AA and the non-display area NA, and the first encapsulation material is patterned to form the first encapsulation layer 410, so that the first encapsulation layer 410 covers the isolation portion 212, or the first encapsulation layer 410 covers the isolation portion 212 and the virtual portion 214.

[0171] There are many ways to set the second signal line 220. The second signal line 220 can be reused as at least one of the multiple signal lines in the non-display area NA of the display panel. For example, at least one second signal line 220 can include at least one of a clock signal line, a high-level power signal line (VGH), a low-level power signal line (VGL), a touch signal line, a voltage reference line, and a scan signal line. Some signal lines in the non-display area NA of the display panel can be prepared and formed in the same process step as the isolation structure 210.

[0172] Optionally, when the second signal line 220 is multiplexed as at least one of a clock signal line, a high-level power signal line (VGH), a low-level power signal line (VGL), and a voltage reference line, a connection portion is provided on the second signal line 220 so that the second signal line 220 is connected to the signal line of the display area AA through the connection portion. Optionally, the number of connection portions on the second signal line 220 is related to the number of rows of sub-pixels in the display area AA. For example, when n rows of sub-pixels are provided in the display area AA, n connection portions may be provided on the second signal line 220 so that the second signal line 220 may be connected to the signal line of each row of sub-pixels. For example, the display panel further includes a plurality of shift register circuits (GIP, Gate in panel) 701 located in the non-display area NA, and each second signal line 220 is electrically connected to the plurality of shift register circuits 701 through a plurality of second vias 810. A portion of the connection portion of the second signal line 220 may be located in the second via 810 to be electrically connected to the shift register circuit 701. Optionally, the number of shift register circuits 701 is equal to the number of second vias 810 corresponding to each second signal line 220. Optionally, an insulating dielectric layer 800 is provided between the second signal line 220 and the shift register circuit 701, and the second via 810 penetrates the insulating dielectric layer 800, so that the connecting portion of the second signal line 220 can be electrically connected to the shift register circuit 701 via the second via 810. Optionally, the shift register circuit 701 can be used to output a scan signal or a light emitting control signal. Optionally, the insulating dielectric layer 800 includes a plurality of sublayers.

[0173] In some optional embodiments, such as Figure 3 As shown, the display panel also includes a shift register circuit 701 located in the non-display area NA, and the orthographic projection of the second signal line 220 on the substrate 100 and the orthographic projection of the shift register circuit 701 on the substrate 100 at least partially overlap, which can reduce the distribution area of ​​the second signal line 220 and the shift register circuit 701 on the plane and reduce the frame size.

[0174] Or, alternatively, Figure 4As shown, the display panel further includes a voltage reference line 702, and the second signal line 220 is disposed on a side of the voltage reference line 702 away from the substrate 100 and in contact with the voltage reference line, which can increase the distribution area of ​​the voltage reference line 702 and reduce the voltage drop.

[0175] Optionally, the display panel includes a pixel circuit and a voltage reference line 702, the pixel circuit includes a reset transistor, the voltage reference line 702 is connected to the reset transistor, and the second signal line 220 is arranged on a side of the voltage reference line 702 away from the substrate 100 and is in contact with the voltage reference line 702. The distribution area of ​​the voltage reference line 702 can be increased and the voltage drop can be reduced. Figures 1 to 8 As shown, the embodiment of the first aspect of the present application further provides a display panel, the display panel includes the above-mentioned display area AA and non-display area NA, the display panel includes a substrate 100; an isolation functional layer 200, which is arranged on one side of the substrate 100 and includes at least one isolation structure 210 and at least one second signal line 220 located in the non-display area NA, the isolation structure 210 and the second signal line 220 are arranged at intervals, the at least one isolation structure 210 includes an isolation structure 210 located in the display area AA, and an isolation opening 211 is opened on the isolation structure 210 located in the display area AA; a light-emitting layer 300, including a light-emitting unit 310 located in each isolation opening 211; The first encapsulation layer 410 includes a first encapsulation portion 411 located on the side of each light-emitting unit 310 away from the substrate 100, and the first encapsulation portion 411 extends from the isolation opening 211 to the side of the isolation functional layer 200 away from the substrate 100 to cover at least a portion of the isolation functional layer 200; wherein the orthographic projection of the second signal line 220 on the substrate 100 is located outside the orthographic projection of the first encapsulation layer 410 on the substrate 100, and / or, at least one isolation structure 210 includes an isolation structure 210 located in the non-display area NA, and the orthographic projection of the isolation structure 210 located in the non-display area NA on the substrate 100 is located outside the orthographic projection of the first encapsulation layer 410 on the substrate 100.

[0176] In the display panel provided in the embodiment of the present application, the display panel includes a substrate 100, an isolation functional layer 200, a light-emitting layer 300 and a first encapsulation layer 410. The light-emitting layer 300 includes a light-emitting unit 310 located in an isolation opening 211. The light-emitting unit 310 is used to realize the light-emitting display of the display panel. The isolation structure 210 of the isolation functional layer 200 can isolate adjacent light-emitting units 310 and improve the light mixing effect between different light-emitting units 310. The first encapsulation layer 410 includes a first encapsulation portion 411 located on the side of the light-emitting unit 310 away from the substrate 100. The first encapsulation portion 411 can provide encapsulation protection for the light-emitting unit 310. The first encapsulation portion 411 covers at least a portion of the isolation functional layer 200 located in the display area AA, and can ensure the encapsulation effect of the first encapsulation portion 411. The orthographic projection of the second signal line 220 in the non-display area NA on the substrate 100 is located outside the orthographic projection of the first encapsulation layer 410 on the substrate 100, that is, the second signal line 220 is not covered by the first encapsulation layer 410, which can reduce the complexity of the first encapsulation layer 410 on the one hand, and improve the yield of the display panel; on the other hand, it can make the gas introduced or generated during the preparation process overflow from the non-display area NA, further improve the yield of the display panel, and then improve the process performance of the display panel. The orthographic projection of the isolation structure 210 at least partially located in the non-display area NA on the substrate 100 is located outside the orthographic projection of the first encapsulation layer 410 on the substrate 100, which can also reduce the complexity of the first encapsulation layer 410, improve the yield of the display panel, make the gas introduced or generated during the preparation process overflow from the non-display area NA, further improve the yield of the display panel, and then improve the process performance of the display panel.

[0177] In addition, the isolation functional layer 200 includes an isolation structure 210 and a second signal line 220, so that the second signal line 220 and the isolation structure 210 can be prepared and formed in the same process step, which can simplify the preparation process of the display panel. The second signal line 220 in the non-display area NA is not covered by the first encapsulation layer 410, and a first encapsulation part 411 with a complex shape will not be formed on the second signal line 220, which can simplify the film structure of the display panel; in addition, the gas introduced or generated during the preparation process can overflow from the second signal line 220 or its surrounding side, further improving the yield of the display panel, thereby improving the process performance of the display panel.

[0178] The arrangement of the isolation structure 210 , the second signal line 220 , and the first encapsulation layer 410 is as described above, and will not be repeated here. The display panel of the embodiment of the present application may further include the second encapsulation layer 420 and the third encapsulation layer 430 described above.

[0179] In any of the above embodiments, the pixel definition layer 600 may extend from the display area AA to the non-display area NA, for example. Figure 5As shown, the pixel definition layer 600 further includes an extension portion 630, the extension portion 630 is located in the non-display area NA, and at least part of the extension portion 630 is reused as the first insulating layer 500, and the virtual portion 214 and the overlapping portion 213 of the isolation structure 210 can be located on the side of the extension portion 630 away from the substrate 100. The difference between the extension portion 630 and the pixel defining portion 610 is that their positions are different, the pixel defining portion 610 is located in the display area AA, and the extension portion 630 is located in the non-display area NA, and the pixel defining portion 610 and the extension portion 630 can be connected to each other at the boundary between the display area AA and the non-display area NA and be integrally formed.

[0180] Optional, such as Figure 5 As shown, the extension 630 can also cover the dam 20, and the third encapsulation layer 430 is in contact with the extension 630 on the dam 20 to improve the encapsulation effect. Optionally, the material of the pixel definition layer 600 includes an inorganic material, so that the extension 630 has good density, which can further improve the encapsulation effect of the display panel.

[0181] In other embodiments, the extension portion 630 may also be located on the side of the dummy portion 214 facing the substrate 100 , and the extension portion 630 may not extend onto the dam 20 .

[0182] The embodiment of the second aspect of the present application also provides a display device, including the display panel of any of the above-mentioned embodiments of the first aspect. Since the display device provided by the embodiment of the second aspect of the present application includes the display panel of any of the above-mentioned embodiments of the first aspect, the display device provided by the embodiment of the second aspect of the present application has the beneficial effects of the display panel of any of the above-mentioned embodiments of the first aspect, which will not be repeated here.

[0183] The display device in the embodiments of the present application includes but is not limited to mobile phones, personal digital assistants (PDAs), tablet computers, e-books, televisions, access control systems, smart landline phones, consoles, and other devices with display functions.

[0184] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A display panel, characterized in that: The display panel has a display area and a non-display area, and includes: substrate; an isolation functional layer, arranged on one side of the substrate and located in the display area and the non-display area, the isolation functional layer comprising a plurality of isolation functional structures, the plurality of isolation functional structures comprising an isolation structure, the isolation structure extending from the display area to the non-display area, the isolation structure comprising a plurality of sub-portions, the plurality of sub-portions comprising an isolation portion located in the display area and an overlap portion located in the non-display area, the isolation portion and the overlap portion being an integrated structure, the isolation portion enclosing an isolation opening located in the display area; A light-emitting layer, comprising light-emitting units located in each of the isolation openings; A first encapsulation layer, comprising a first encapsulation portion located on a side of each of the light-emitting units away from the substrate, and the first encapsulation portion extends from the isolation opening to a side of the isolation functional layer away from the substrate and covers a portion of the isolation functional layer; Wherein, the orthographic projection of the overlapping portion located in the non-display area on the substrate is located outside the orthographic projection of the first encapsulation layer on the substrate; The display panel further includes a first signal line located in the non-display area, and the overlapping portion is electrically connected to the first signal line.

2. The display panel according to claim 1, characterized in that: The first signal line is located on a side of the isolation functional layer facing the substrate, a first insulating layer is provided between the first signal line and the overlapping portion, a first via hole is provided on the first insulating layer, and the overlapping portion and the first signal line are connected via the first via hole.

3. The display panel according to claim 2, characterized in that: The overlapping portion includes a main body section and a terrace section which are connected to each other, wherein the main body section is located on a side of the first insulating layer away from the substrate, the terrace section is located in the first via hole, and the terrace section is located on a side of the main body section facing the substrate to form a step between the main body section and the terrace section.

4. The display panel according to claim 1, characterized in that: The materials of the isolation part and the overlapping part include conductive materials, the light-emitting unit includes a first electrode, a light-emitting structure and a second electrode stacked in a direction away from the substrate, the first packaging part is located on a side of the second electrode away from the light-emitting structure, and the second electrode and the isolation part are electrically connected.

5. The display panel according to claim 1, characterized in that: The display panel further includes a dam located in the non-display area, the dam is disposed around at least a portion of the display area, and the overlapping portion is located on a side of the dam facing the display area.

6. The display panel according to claim 1, characterized in that: The overlapping portion is provided with ventilation holes.

7. The display panel according to claim 1, characterized in that: Along the direction from the isolation portion to the overlapping portion, the width of the overlapping portion ranges from 15 μm to 2000 μm.

8. The display panel according to claim 1, characterized in that: The multiple sub-parts also include a virtual part connected to the isolation part and located in the non-display area. The isolation part and the virtual part are an integrated structure. The virtual part encloses a virtual opening, and the light-emitting layer includes a virtual unit located in the virtual opening.

9. The display panel according to claim 8, characterized in that: The virtual part is connected between the isolation part and the overlapping part, the non-display area includes a virtual area and a wiring area distributed in sequence in a direction away from the display area, the virtual part is located in the virtual area, and the overlapping part and part of the first signal line are located in the wiring area.

10. The display panel according to claim 8, characterized in that: The first encapsulation layer further includes a second encapsulation portion located at a side of the dummy unit away from the substrate, the second encapsulation portion extending from the dummy opening to a side of the dummy portion away from the substrate and covering at least a portion of the dummy portion.

11. The display panel according to claim 10, characterized in that: The second packaging part includes a first segment and a second segment, the first segment is located at the virtual opening, the second segment is connected to the peripheral side of the first segment and extends to the side of the virtual part away from the substrate, and the width of the second segment of the second packaging part close to the overlapping part ranges from 0.5μm to 5μm.

12. The display panel according to claim 11, characterized in that: The width of the second segment of the second packaging portion close to the overlapping portion is in the range of 0.5 μm to 1 μm.

13. The display panel according to claim 1, characterized in that: The first packaging part includes a first section and a second section connected to the periphery of the first section. The first section is located on a side of the light emitting unit away from the substrate. The second section extends from the first section to a side of the isolation structure away from the substrate.

14. The display panel according to claim 13, characterized in that: The isolation structure includes a first sublayer and a second sublayer located on the side of the first sublayer facing away from the substrate, the orthographic projection of the first sublayer on the substrate is located within the orthographic projection of the second sublayer on the substrate, and the second portion extends through a side of the first sublayer facing the isolation opening, a side of the second sublayer facing the substrate, and a side of the second sublayer facing the isolation opening to a side of the second sublayer facing away from the substrate.

15. The display panel according to claim 14, characterized in that: An end of the second section away from the first section is located at a side of the isolation structure away from the substrate and is spaced apart from the isolation structure.

16. The display panel according to claim 1, characterized in that: The multiple isolation functional structures include an isolation structure and at least one second signal line located in the non-display area, the isolation structure and the second signal line are arranged at intervals, the isolation structure encloses the isolation opening, and the orthographic projection of the second signal line on the substrate is located outside the orthographic projection of the first packaging layer on the substrate.

17. The display panel according to claim 16, characterized in that: The second signal line includes a fourth sub-layer and a fifth sub-layer located on a side of the fourth sub-layer away from the substrate, and an orthographic projection of the fourth sub-layer on the substrate is located within an orthographic projection of the fifth sub-layer on the substrate.

18. The display panel according to claim 17, characterized in that: The isolation structure includes a first sublayer and a second sublayer located on the side of the first sublayer facing away from the substrate, the orthographic projection of the first sublayer on the substrate is located within the orthographic projection of the second sublayer on the substrate, the fourth sublayer and the first sublayer are arranged in the same layer and the same material, and the fifth sublayer and the second sublayer are arranged in the same layer and the same material.

19. The display panel according to claim 18, characterized in that: The second signal line further includes a sixth sublayer, the sixth sublayer is located on a side of the fourth sublayer facing the substrate, and the orthographic projection of the fourth sublayer on the substrate is located within the orthographic projection of the sixth sublayer on the substrate; The isolation structure also includes a third sublayer, which is located on the side of the first sublayer facing the substrate, the orthographic projection of the first sublayer on the substrate is located within the orthographic projection of the third sublayer on the substrate, and the sixth sublayer and the third sublayer are arranged in the same layer and material.

20. The display panel according to claim 16, characterized in that: The at least one second signal line includes at least one of a clock signal line, a high level power signal line, a low level power signal line, a touch signal line, a voltage reference line and a scan signal line.

21. The display panel according to claim 16, characterized in that: The display panel further includes a shift register circuit located in the non-display area, and an orthographic projection of the second signal line on the substrate and an orthographic projection of the shift register circuit on the substrate at least partially overlap; Alternatively, the display panel further includes a voltage reference line, and the second signal line is disposed on a side of the voltage reference line away from the substrate and is in contact with and connected to the voltage reference line.

22. The display panel according to claim 16, characterized in that: The display panel further includes a plurality of shift register circuits located in the non-display area, and each of the second signal lines is electrically connected to the plurality of shift register circuits through a plurality of second via holes.

23. The display panel according to claim 22, characterized in that: The number of the shift register circuits is equal to the number of the second vias corresponding to the second signal lines.

24. The display panel according to claim 16, characterized in that: The display panel includes a plurality of pixel circuits located in the display area and a voltage reference line located in the non-display area, each of the pixel circuits includes a reset transistor, the voltage reference line is connected to the reset transistor of each of the pixel circuits, and the second signal line is arranged on a side of the voltage reference line away from the substrate and is in contact with and connected to the voltage reference line.

25. The display panel according to claim 1, characterized in that: The display panel further includes: The second encapsulation layer is located on a side of the first encapsulation layer away from the substrate, the second encapsulation layer extends from the display area to the non-display area, and the second encapsulation layer is in contact with and connected to the isolation functional layer not covered by the first encapsulation layer.

26. The display panel according to claim 25, characterized in that: The display panel includes a dam located in the non-display area, and the isolation functional layer and the second encapsulation layer are located on a side of the dam facing the display area.

27. A display panel, characterized in that: The display panel has a display area and a non-display area, and includes: substrate; an isolation functional layer, disposed on one side of the substrate, and comprising at least one isolation structure and at least one second signal line located in the non-display area, wherein the isolation structure and the second signal line are arranged at intervals, wherein the at least one isolation structure comprises an isolation structure located in the display area, and the isolation structures located in the display area enclose an isolation opening; A light-emitting layer, comprising light-emitting units located in each of the isolation openings; A first encapsulation layer, comprising a first encapsulation portion located on a side of each of the light-emitting units away from the substrate, and the first encapsulation portion extends from the isolation opening to a side of the isolation functional layer away from the substrate and covers a portion of the isolation functional layer; Among them, the orthographic projection of the second signal line on the substrate is located outside the orthographic projection of the first packaging layer on the substrate, and / or the at least one isolation structure also includes an isolation structure located in the non-display area, the isolation structure located in the display area and the isolation structure located in the non-display area are an integrated structure, and the orthographic projection of the isolation structure located in the non-display area on the substrate is located outside the orthographic projection of the first packaging layer on the substrate.

28. The display panel according to claim 27, characterized in that: The isolation structure located in the display area includes an isolation portion, and the isolation structure located in the non-display area includes an overlap portion, the isolation portion and the overlap portion are an integrated structure, the isolation portion encloses to form the isolation opening, and the second signal line is located on a side of the overlap portion away from the isolation portion; The display panel further includes a first signal line located in the non-display area, and the overlapping portion and the first signal line are electrically connected to each other.

29. The display panel according to claim 28, characterized in that: The orthographic projection of the overlapping portion on the substrate is located outside the orthographic projection of the first packaging layer on the substrate.

30. The display panel according to claim 28, characterized in that The light-emitting unit includes a first electrode, a light-emitting structure and a second electrode stacked in a direction away from the substrate, the first packaging part is located on a side of the second electrode away from the light-emitting structure, the material of the isolation part and the overlapping part includes a conductive material, and the second electrode and the isolation part are electrically connected.

31. The display panel according to claim 28, characterized in that: The display panel further includes a dam located in the non-display area, the dam is disposed around at least a portion of the display area, and the first signal line and the overlapping portion are located on a side of the dam facing the display area.

32. The display panel according to claim 28, characterized in that: The first signal line is located on a side of the isolation functional layer facing the substrate, a first insulating layer is provided between the first signal line and the overlapping portion, a first via hole is provided on the first insulating layer, and the overlapping portion and the first signal line are connected via the first via hole.

33. The display panel according to claim 28, characterized in that: The isolation structure located in the non-display area also includes a virtual part located between the isolation part and the overlapping part, the isolation part, the virtual part and the overlapping part are an integrated structure, the virtual part is enclosed to form a virtual opening, the light-emitting layer includes a virtual unit located in the virtual opening, the first encapsulation layer also includes a second encapsulation part located on the side of the virtual unit away from the substrate, the second encapsulation part extends from the virtual opening to the side of the virtual part away from the substrate and covers at least part of the virtual part.

34. The display panel according to claim 28, characterized in that: The first packaging part includes a first section and a second section connected to the periphery of the first section. The first section is located on a side of the light emitting unit away from the substrate. The second section extends from the first section to a side of the isolation structure away from the substrate.

35. The display panel according to claim 34, characterized in that: The isolation structure includes a first sublayer and a second sublayer located on the side of the first sublayer facing away from the substrate, the orthographic projection of the first sublayer on the substrate is located within the orthographic projection of the second sublayer on the substrate, and the second portion extends through a side of the first sublayer facing the isolation opening, a side of the second sublayer facing the substrate, and a side of the second sublayer facing the isolation opening to a side of the second sublayer facing away from the substrate.

36. The display panel according to claim 27, characterized in that: The orthographic projection of the first encapsulation portion on the substrate is located outside the non-display area.

37. The display panel according to claim 36, characterized in that: The orthographic projection of the first encapsulation layer on the substrate is located outside the non-display area.

38. The display panel according to claim 27, characterized in that: The second signal line includes at least one of a clock signal line, a high-level power signal line, a low-level power signal line, a touch signal line, a voltage reference line, and a scan signal line.

39. The display panel according to claim 27, characterized in that: The display panel further includes a shift register circuit located in the non-display area, and an orthographic projection of the second signal line on the substrate and an orthographic projection of the shift register circuit on the substrate at least partially overlap; Alternatively, the display panel further includes a voltage reference line, and the second signal line is disposed on a side of the voltage reference line away from the substrate and is in contact with and connected to the voltage reference line.

40. A display device, characterized in that: A display panel comprising any one of claims 1-39.

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