Display panel and display device

Abstract

The invention provides a display panel and a display device, and relates to the technical field of display, the display panel comprises a substrate, a plurality of light emitting units, an isolation structure and a first packaging layer, the isolation structure is arranged on one side of the substrate in the thickness direction, a plurality of isolation openings are defined by the isolation structure, and the light emitting units are arranged in the corresponding isolation openings. The first packaging layer is arranged on the side, away from the substrate, of the light-emitting units, the first packaging layer comprises a plurality of packaging parts, and the packaging parts cover the corresponding light-emitting units. The packaging part comprises a first extending part, the first extending part is located on the side, away from the substrate, of the isolation structure, at least part of the orthographic projection of the first extending part on the substrate is located in the orthographic projection of the isolation structure on the substrate, and the edge of the first extending part is provided with a first end part bent in the direction facing the substrate. According to the display panel provided by the invention, the packaging reliability can be improved, so that the use performance of the display device can be improved.

Description

Technical Field

[0001] The present application belongs to the field of display technology, and more specifically, to a display panel and a display device. Background Art

[0002] Organic Light-Emitting Diode (OLED) is an organic thin-film electroluminescent device. It has the advantages of low power consumption, high brightness, wide viewing angle, high contrast and flexible display. It is widely used in electronic products such as mobile phones, televisions, tablets, laptops, desktop computers, car display terminals, wearable devices, human-computer interaction terminal equipment, etc.

[0003] However, the performance and process performance of the display device need to be further improved. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a display panel and a display device with regard to usage performance / process performance.

[0005] To achieve the above purpose, the technical solution adopted in this application is:

[0006] In a first aspect, the present application provides a display panel, comprising a substrate, a plurality of light-emitting units, an isolation structure and a first encapsulation layer.

[0007] The isolation structure is arranged on one side in the thickness direction of the substrate, and the isolation structure defines a plurality of isolation openings, and the light-emitting units are arranged in corresponding isolation openings.

[0008] The first encapsulation layer is arranged on a side of the light emitting unit away from the substrate, and the first encapsulation layer includes a plurality of encapsulation parts, and the encapsulation parts cover corresponding light emitting units.

[0009] The packaging portion includes a first extension portion, at least part of which is located on a side of the isolation structure facing away from the substrate, at least part of the first extension portion's orthographic projection on the substrate is located within the orthographic projection of the isolation structure on the substrate, and an edge of the first extension portion is provided with a first end portion bent in a direction toward the substrate.

[0010] Through the above technical solution, the edge of the first extension portion is provided with a first end portion bent toward the direction of the substrate. When the photoresist is stripped off, the photoresist is easily separated from the first extension portion at the first end portion, which can reduce the force on the first extension portion, thereby helping to prevent the first extension portion from falling off or breaking, and further helping to improve the packaging reliability.

[0011] In addition, the first end is bent in a direction toward the substrate. When the photoresist is stripped, the force applied by the photoresist on the first end has an angle with the direction perpendicular to the substrate, which can further reduce the force on the first end, thereby further helping to prevent the first extension portion from falling off or breaking, and further helping to improve packaging reliability.

[0012] In this way, the display panel provided by the embodiment of the present application can help improve packaging reliability, thereby improving the performance of the display device.

[0013] In some embodiments, the packaging portion includes a packaging body, the packaging body covers the light-emitting unit, a first root is provided on a side of the first extension portion away from the first end, the first extension portion also includes a first extension segment connecting the first end and the first root, the first root is connected to the packaging body, and the minimum spacing distance between the first end and the substrate is smaller than the spacing distance between the first extension segment and the substrate.

[0014] In this way, the display panel provided by the embodiment of the present application can help improve packaging reliability, thereby preventing subsequent processes from damaging the light-emitting units in the isolation openings.

[0015] In some embodiments, the distance between the first end and the base gradually decreases or remains unchanged in the direction away from the first root; or, the distance between the first end and the base first decreases and then increases in the direction away from the first root; or, the distance between the first end and the base first decreases and then remains unchanged in the direction away from the first root.

[0016] In some embodiments, a side of the isolation structure facing away from the substrate includes a first region and a second region, the spacing distance between the first region and the substrate is smaller than the spacing distance between the second region and the substrate, the orthographic projection of the second region on the substrate is located within the orthographic projection of the first extension portion on the substrate, and the orthographic projection of the first end portion on the substrate is located within the orthographic projection of the first region on the substrate.

[0017] In this way, since the spacing distance between the first area and the substrate is smaller than the spacing distance between the second area and the substrate, and the orthographic projection of the first end on the substrate is located within the orthographic projection of the first area on the substrate, the display panel provided in the present application can form the first end when the first encapsulation layer is evaporated, which facilitates the processing of the first end.

[0018] Optionally, a first root is provided on a side of the first extension portion away from the first end portion, and in a direction from the first root portion to the first end portion, the first region is located on one side of the second region, and an orthographic projection of the first end portion on the substrate is located on a side where an orthographic projection of the second region on the substrate is close to an orthographic projection of the first region on the substrate.

[0019] In some embodiments, the display panel provided in the present application also includes a pixel definition layer, which is located on one side of the substrate and on the side where the isolation structure is located, the isolation structure is arranged on the side of the pixel definition layer away from the substrate, the side of the pixel definition layer away from the substrate includes a third area and a fourth area, the spacing distance between the third area and the substrate is smaller than the spacing distance between the fourth area and the substrate, the orthographic projection of the first area on the substrate is located within the orthographic projection of the third area on the substrate, the orthographic projection of the second area on the substrate partially overlaps with the orthographic projection of the fourth area on the substrate, and the orthographic projection of the first end on the substrate is located within the orthographic projection of the third area on the substrate.

[0020] In this way, since the spacing distance between the third area and the substrate is smaller than the spacing distance between the fourth area and the substrate, and the orthographic projection of the first end on the substrate is located within the orthographic projection of the third area on the substrate, the display panel provided in the present application can form the first end when the first encapsulation layer is evaporated, which facilitates the processing of the first end.

[0021] In some embodiments, a portion of the isolation structure is disposed in the third region, and another portion of the isolation structure is disposed in the fourth region.

[0022] In some embodiments, an orthographic projection of the first end on the substrate is spaced apart from an orthographic projection of the light emitting unit on the substrate.

[0023] In this way, the light-emitting unit can leave a gap at the position corresponding to the first end, and the first encapsulation layer can fill the gap, so that the first end can be formed at the position corresponding to the gap, which is convenient for processing the first end.

[0024] In addition, the notch left at the position corresponding to the first end of the light emitting unit is conducive to improving light transmittance.

[0025] In some embodiments, the display panel provided in the present application also includes a first electrode layer, the first electrode layer includes multiple first electrodes, each first electrode is arranged on a side of the corresponding light-emitting unit close to the substrate, and the orthographic projection of the first end on the substrate does not overlap with the orthographic projection of the first electrode on the substrate.

[0026] In this way, the first electrode can leave a gap in the pixel definition layer at a position corresponding to the first end, so that the isolation structure fills the gap, and the part of the isolation structure corresponding to the gap is recessed in the direction toward the substrate, so that the first encapsulation layer can form a first end at a position corresponding to the gap, which is convenient for processing the first end.

[0027] In some embodiments, the second electrode of the light emitting unit includes a first end and a second end opposite to each other, the first end of the second electrode overlaps the isolation structure, and the second end of the second electrode is spaced apart from the isolation structure.

[0028] In this way, a gap can be left between the second end of the second electrode of the light-emitting unit and the isolation structure, which is beneficial to improving light transmittance.

[0029] Optionally, an orthographic projection of the first end of the second electrode on the substrate is located within an orthographic projection of the first extension portion on the substrate.

[0030] In some embodiments, the display panel provided in the present application also includes a first electrode layer, the first electrode layer includes multiple first electrodes, each first electrode is arranged on a side of the corresponding light-emitting unit close to the substrate, the first electrode includes a third end and a fourth end relative to each other, the orthographic projection of the third end of the first electrode on the substrate is located within the orthographic projection of the isolation structure on the substrate, and the orthographic projection of the fourth end of the first electrode on the substrate is spaced apart from the orthographic projection of the isolation structure on the substrate.

[0031] In this way, the first electrode can leave a gap between the fourth end and the isolation structure, and then the pixel definition layer leaves a gap at the corresponding position, and the first packaging layer fills the gap, so that the first end can be formed at the position corresponding to the gap, which is convenient for processing the first end.

[0032] Optionally, the orthographic projection of the third end of the first electrode on the substrate is located within the orthographic projection of the first extension portion on the substrate, and is spaced apart from the orthographic projection of the first end portion on the substrate.

[0033] Optionally, an orthographic projection of the fourth end of the first electrode on the substrate is spaced apart from an orthographic projection of the first extension portion on the substrate.

[0034] In some embodiments, the packaging portion also includes a second extension portion, the first extension portion and the second extension portion are located at the edge of the packaging portion, the first extension portion and the second extension portion are arranged opposite to each other, at least a portion of the second extension portion is located on the side of the isolation structure away from the substrate, at least a portion of the second extension portion on the orthographic projection of the substrate is located within the orthographic projection of the isolation structure on the substrate, and the edge of the second extension portion is provided with a second end portion bent in a direction toward the substrate.

[0035] Through the above technical solution, the edge of the second extension portion is provided with a second end portion bent toward the substrate. When the photoresist is stripped off, the photoresist is easily separated from the second extension portion at the second end portion, which can reduce the force on the second extension portion, thereby helping to prevent the second extension portion from falling off or breaking, and further helping to improve packaging reliability.

[0036] In addition, the second end is bent in a direction toward the substrate. When the photoresist is stripped, the force applied by the photoresist on the second end has an angle with the direction perpendicular to the substrate, which can further reduce the force on the second end, thereby further helping to prevent the second extension portion from falling off or breaking, and further helping to improve packaging reliability.

[0037] In some embodiments, the packaging portion includes a packaging body, the packaging body covers the light-emitting unit, a second root is provided on the side of the second extension portion away from the first end, the second extension portion also includes a second extension segment connecting the second end and the second root, the second root is connected to the packaging body, and the minimum spacing distance between the second end and the substrate is smaller than the spacing distance between the second extension segment and the substrate.

[0038] In this way, the display panel provided by the embodiment of the present application can help improve packaging reliability, thereby preventing subsequent processes from damaging the light-emitting units in the isolation openings.

[0039] Optionally, the spacing distance between the second end portion and the base gradually decreases or remains unchanged in a direction away from the second root portion.

[0040] Optionally, the spacing distance between the second end portion and the base first decreases and then increases in a direction away from the second root portion.

[0041] Optionally, the spacing distance between the second end portion and the base first decreases and then remains unchanged in a direction away from the second root portion.

[0042] In some embodiments, a side of the isolation structure facing away from the substrate includes a first region and a fifth region, the spacing distance between the first region and the substrate is smaller than the spacing distance between the fifth region and the substrate, the orthographic projection of the fifth region on the substrate is located within the orthographic projection of the second extension portion on the substrate, and the orthographic projection of the second end on the substrate is located within the orthographic projection of the first region on the substrate.

[0043] In this way, since the spacing distance between the first area and the substrate is smaller than the spacing distance between the fifth area and the substrate, and the orthographic projection of the second end on the substrate is located within the orthographic projection of the first area on the substrate, the display panel provided in the present application can form the second end when the first encapsulation layer is evaporated, which facilitates the processing of the second end.

[0044] In some embodiments, a second root is provided on a side of the second extension portion away from the second end portion, and in a direction from the second root portion to the second end portion, the first region is located on one side of the fifth region, and the orthographic projection of the second end portion on the substrate is located on a side where the orthographic projection of the fifth region on the substrate is close to the orthographic projection of the first region on the substrate.

[0045] In some embodiments, a side of the isolation structure facing away from the substrate also includes a second region, the spacing distance between the first region and the substrate is smaller than the spacing distance between the second region and the substrate, the orthographic projection of the second region on the substrate is located within the orthographic projection of the first extension portion on the substrate, and the orthographic projection of the first end portion on the substrate is located within the orthographic projection of the first region on the substrate.

[0046] In this way, since the spacing distance between the first area and the substrate is smaller than the spacing distance between the second area and the substrate, and the orthographic projection of the second end on the substrate is located within the orthographic projection of the first area on the substrate, the display panel provided in the present application can form the second end when the first encapsulation layer is evaporated, which facilitates the processing of the second end.

[0047] Optionally, the first region is located between the second region and the fifth region, the first end is located on a side of the second region close to the first region, and the second end is located on a side of the fifth region close to the first region.

[0048] In some embodiments, a first root is provided on a side of the first extension away from the first end, and along a direction from the first root to the first end, a size of a positive projection of the first end on the substrate is a, and a has a value range of 0.2 μm≤a≤0.4 μm.

[0049] In some embodiments, a portion of the orthographic projection of the first electrode on the substrate overlaps with an orthographic projection of the isolation structure on the substrate, a first root is provided on a side of the first extension portion away from the first end, and along a direction from the first root to the first end, a size of the overlapping portion of the orthographic projection of the first electrode on the substrate and the orthographic projection of the isolation structure on the substrate is b, and a value range of b is: 1μm≤a≤2μm.

[0050] In a second aspect, the present application provides a display panel, comprising a substrate, a plurality of light-emitting units, an isolation structure and a first encapsulation layer.

[0051] The isolation structure is arranged on one side in the thickness direction of the substrate, and the isolation structure defines a plurality of isolation openings, and the light-emitting units are arranged in corresponding isolation openings.

[0052] The first encapsulation layer is arranged on a side of the light emitting unit away from the substrate, and the first encapsulation layer includes a plurality of encapsulation parts, and the encapsulation parts cover corresponding light emitting units.

[0053] The packaging portion includes a first extension portion, at least a portion of the first extension portion is located on a side of the isolation structure facing away from the substrate, at least a portion of the orthographic projection of the first extension portion on the substrate is located within the orthographic projection of the isolation structure on the substrate, the first extension portion includes a first part and a second part, the first part is located on a side of the second part close to an edge of the first extension portion, and a minimum spacing distance between the first part and the substrate is less than a spacing distance between the second part and the substrate.

[0054] Through the above technical solution, when stripping the photoresist, the photoresist can easily separate from the first extension part at the junction of the first part and the second part, which can reduce the force on the first extension part, thereby preventing the first extension part from falling off or breaking, and further helping to improve packaging reliability.

[0055] In addition, when stripping the photoresist, the force applied by the photoresist at the junction of the first part and the second part has an angle with the direction perpendicular to the substrate, which can further reduce the force on the first extension part, thereby further helping to prevent the first extension part from falling off or breaking, and further helping to improve packaging reliability.

[0056] In a third aspect, the present application provides a display device, which includes the display panel of the above embodiment. The display device provided by the present application has the same or similar technical effects as the above display panel, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0058] Figure 1 A schematic diagram of the planar structure of a display panel provided in an embodiment of the present application;

[0059] Figure 2 for Figure 1 One of the partial enlarged views at A in the middle;

[0060] Figure 3 for Figure 2 The cross-sectional view along line BB in the middle;

[0061] Figure 4 for Figure 1 The second partial enlarged view of point A in the middle;

[0062] Figure 5 for Figure 4 One of the cross-sectional views along line CC;

[0063] Figure 6 One of the structural schematic diagrams of the first extension portion or the second extension portion provided in the embodiment of the present application;

[0064] Figure 7 A second structural schematic diagram of the first extension portion or the second extension portion provided in an embodiment of the present application;

[0065] Figure 8 A third structural schematic diagram of the first extension portion or the second extension portion provided in an embodiment of the present application;

[0066] Fig. 9 A fourth structural schematic diagram of the first extension portion or the second extension portion provided in an embodiment of the present application;

[0067] Fig.10 for Figure 4 The second cross-sectional view along the CC line;

[0068] Fig.11 for Figure 4 The third cross-sectional view along the CC line;

[0069] Fig.12 for Figure 1 The third partial enlarged view of point A in the middle;

[0070] Fig.13 for Fig.12 Schematic cross-sectional view along line DD.

[0071] Among them, the reference numerals in the figure are:

[0072] 100-display panel; 10-substrate; 20-anode; 30-pixel definition layer; 31-third region; 32-fourth region; 40-isolation structure; 401-isolation opening; 41-first region; 42-second region; 43-fifth region; 50-light-emitting layer; 60-second electrode; 70-first encapsulation layer; 71-encapsulation body; 72-first extension portion; 721-first root portion; 722-first extension section; 723-first end portion; 73-second extension portion; 731-second root portion; 732-second extension section; 733-second end portion. DETAILED DESCRIPTION

[0073] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0074] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0075] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and 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 orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0076] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0077] Please also read Figure 1 , Figure 2 and Figure 3 The present application provides a display panel 100 , which may be an organic light-emitting diode (OLED) display panel 100 or a micro light-emitting diode (Micro Light Emitting Diode, Micro LED / μLED) display panel 100 .

[0078] The display panel 100 includes a substrate 10 including a display area AA and a non-display area NA surrounding at least a portion of the display area AA.

[0079] The display panel 100 further includes a pixel definition layer 30 and an isolation structure 40, wherein the isolation structure 40 is disposed on one side of the substrate 10 in the thickness direction, and the isolation structure 40 is disposed on the side of the pixel definition layer 30 away from the substrate 10, and the isolation structure 40 defines a plurality of isolation openings 401. Optionally, the pixel definition layer 30 and the isolation structure 40 may be located in the display area AA.

[0080] The display panel 100 further includes a light emitting unit located in the corresponding isolation opening 401 . The light emitting layer 50 and the second electrode 60 of the light emitting unit are located in the isolation opening 401 , and the second electrode 60 is located on a side of the light emitting layer 50 away from the substrate 10 .

[0081] Optionally, the display panel provided in the present application also includes a first electrode layer, the first electrode layer includes multiple first electrodes 20, each first electrode 20 is arranged on a side of the corresponding light-emitting unit close to the substrate 10, the pixel definition layer 30 has a pixel opening, and the light-emitting layer 50 can be connected to the first electrode 20 through the pixel opening.

[0082] It should be noted that the composition, preparation and other contents of the isolation structure 40 are described in patents CN118251982A, 202410864269.8, PCT / CN2024 / 098407, PCT / CN2024 / 102783, PCT / CN2024 / 098217, PCT / CN2024 / 099419, PCT / CN2024 / 09907 2. Further descriptions are provided in CN117979755A, CN117998900A, CN117062489A, CN117580403A, CN116583155A, CN116669477A, ​​CN117396039A, CN116669480A, CN116600606A, and CN117500332A for reference.

[0083] The display panel 100 further includes a first encapsulation layer 70, which is disposed on a side of the pixel definition layer 30 away from the substrate 10 and located on a side of the light-emitting unit away from the substrate 10. The first encapsulation layer 70 includes a plurality of encapsulation portions, and the encapsulation portions cover the corresponding isolation openings 401. In other words, the orthographic projection of the isolation opening 401 on the substrate 10 is located within the orthographic projection of the corresponding encapsulation portion on the substrate 10.

[0084] The light-emitting unit includes a first light-emitting unit, a second light-emitting unit and a third light-emitting unit, and the first light-emitting unit, the second light-emitting unit and the third light-emitting unit can emit light of different colors. For example, the first light-emitting unit can emit red light, the second light-emitting unit can emit green light, and the third light-emitting unit can emit blue light. For example, the first light-emitting unit can emit green light, the second light-emitting unit can emit red light, and the third light-emitting unit can emit blue light. For example, the first light-emitting unit can emit blue light, the second light-emitting unit can emit red light, and the third light-emitting unit can emit green light. For example, the first light-emitting unit can emit red light, the second light-emitting unit can emit blue light, and the third light-emitting unit can emit green light. For example, the first light-emitting unit can emit green light, the second light-emitting unit can emit blue light, and the third light-emitting unit can emit red light. For example, the first light-emitting unit can emit blue light, the second light-emitting unit can emit green light, and the third light-emitting unit can emit red light.

[0085] It can be understood that the first light-emitting unit, the second light-emitting unit and the third light-emitting unit are sequentially evaporated and patterned. The packaging part may include three parts, the first part corresponds to the first light-emitting unit, and the first part is also formed by patterning, the second part corresponds to the second light-emitting unit, and the second part is also formed by patterning, and the third part corresponds to the third light-emitting unit, and the third part is also formed by patterning.

[0086] The encapsulation portion includes an extension portion, which is located on a side of the isolation structure 40 away from the substrate 10 and is spaced apart from the isolation structure 40 . At least part of the orthographic projection of the extension portion on the substrate 10 coincides with the orthographic projection of the isolation structure 40 on the substrate 10 .

[0087] The inventors found that during the patterning process of the packaging part, when the photoresist is stripped, the extension part is easy to fall off, affecting the packaging reliability.

[0088] For example, the packaging part may include a first extension part 72, the first extension part 72 is located on the side of the isolation structure 40 away from the substrate 10, and at least part of the orthographic projection of the first extension part 72 on the substrate 10 coincides with the orthographic projection of the isolation structure 40 on the substrate 10. Optionally, the first extension part 72 may be spaced apart from the isolation structure 40. During the patterning process of the packaging part, when the photoresist is stripped, the first extension part 72 is easy to fall off or break, affecting the packaging reliability.

[0089] Please also read Figure 4 and Figure 5 To solve the above technical problems, the display panel 100 provided in the embodiment of the present application is provided with a first end portion 723 at the edge of the first extension portion 72 , and the first end portion 723 is bent in a direction toward the substrate 10 .

[0090] Through the above technical solution, when stripping the photoresist, the photoresist can be easily separated from the first extension portion 72 at the first end 723, which can reduce the force on the first extension portion 72, thereby preventing the first extension portion 72 from falling off or breaking, and further improving packaging reliability.

[0091] In addition, the first end portion 723 is bent in a direction toward the substrate. When the photoresist is stripped, the force applied by the photoresist to the first end portion 723 has an angle with the direction perpendicular to the substrate 10, which can further reduce the force on the first end portion 723, thereby further helping to prevent the first extension portion 72 from falling off or breaking, and further helping to improve packaging reliability.

[0092] In this way, the display panel 100 provided in the embodiment of the present application can help improve packaging reliability, thereby improving the performance of the display device.

[0093] In some embodiments, the encapsulation part includes an encapsulation body 71, the encapsulation body 71 covers the light-emitting unit, and the encapsulation body 71 can encapsulate the second electrode 60 and the light-emitting layer 50 in the isolation opening 401. The first extension part 72 includes a first root part 721, a first extension section 722 and a first end part 723 connected in sequence, the first root part 721 is located on a side of the first extension part 72 away from the first end part 723, and the first root part 721 is connected to the encapsulation body 71, and the minimum spacing distance between the first end part 723 and the substrate 10 is less than the spacing distance between the first extension section 722 and the substrate 10. Therefore, when stripping the photoresist, the photoresist is easily separated from the first extension part 72 at the first end part 723, which can reduce the force on the first extension part 72, thereby facilitating the first extension part 72 from falling off or breaking, and further facilitating the improvement of the encapsulation reliability.

[0094] In this way, the display panel 100 provided in the embodiment of the present application can help improve packaging reliability, thereby preventing the light-emitting units in the isolation opening 401 from being damaged by subsequent processes.

[0095] In some embodiments, a first root portion 721 is provided on one side of the first extension portion 72 away from the first end portion 723 , and along the direction from the first root portion 721 to the first end portion 723 , the size of the orthographic projection of the first end portion 723 on the substrate 10 is a, and the value range of a is: 0.2μm≤a≤0.4μm.

[0096] It is understandable that the size of the orthographic projection of the first end portion 723 on the substrate 10 is between 0.2 μm and 0.4 μm, which can reduce the force on the first extension portion 72 when stripping the photoresist.

[0097] Optionally, the value range of a is: 0.2 μm≤a≤0.3 μm. Optionally, the value range of a is: 0.3 μm≤a≤0.4 μm.

[0098] Exemplarily, the value of a may be: 0.2 μm, 0.25 μm, 0.3 μm, 0.35 μm, 0.4 μm, etc.

[0099] In other embodiments, the first extension portion 72 includes a first part and a second part, the first part is located on a side of the second part close to an edge of the first extension portion 72, and the minimum spacing distance between the first part and the substrate 10 is smaller than the spacing distance between the second part and the substrate 10.

[0100] Through the above technical solution, when the photoresist is stripped, the photoresist can be easily separated from the first extension part 72 at the junction of the first part and the second part, which can reduce the force on the first extension part 72, thereby preventing the first extension part 72 from falling off or breaking, and further improving the packaging reliability.

[0101] In addition, when stripping the photoresist, the force exerted by the photoresist at the junction of the first part and the second part has an angle with the direction perpendicular to the substrate 10, which can further reduce the force on the first extension part 72, thereby further helping to prevent the first extension part 72 from falling off or breaking, and further helping to improve packaging reliability.

[0102] Optionally, the first portion may be the first end portion 723 , and the second portion may be the first extension segment 722 .

[0103] See also Figure 6 Optionally, in some examples, the spacing distance between the first end portion 723 and the substrate 10 remains unchanged in a direction away from the first root portion 721 .

[0104] See also Figure 7 Optionally, in some examples, the spacing distance between the first end portion 723 and the substrate 10 gradually decreases in a direction away from the first root portion 721 .

[0105] See also Figure 8 Optionally, in some examples, the spacing distance between the first end portion 723 and the substrate 10 first decreases and then remains unchanged in a direction away from the first root portion 721 .

[0106] See also Fig. 9 Optionally, in some examples, the spacing distance between the first end portion 723 and the substrate 10 first decreases and then increases in a direction away from the first root portion 721 .

[0107] It should be noted that the spacing distance between the first end portion 723 and the substrate 10 may be the spacing distance between the side of the first end portion 723 facing the substrate 10 and the substrate 10. In addition, the variation trend of the spacing distance between the side of the first end portion 723 facing away from the substrate 10 and the substrate 10 is the same as the variation trend of the spacing distance between the side of the first end portion 723 facing the substrate 10 and the substrate 10. Furthermore, the shape of the first end portion 723 may be changed according to different processes.

[0108] See also Fig.10 In some embodiments, a side of the isolation structure 40 facing away from the substrate 10 includes a first region 41 and a second region 42, the spacing distance between the first region 41 and the substrate 10 is smaller than the spacing distance between the second region 42 and the substrate 10, the orthographic projection of the second region 42 on the substrate 10 is located within the orthographic projection of the first extension portion 72 on the substrate 10, and the orthographic projection of the first end portion 723 on the substrate 10 is located within the orthographic projection of the first region 41 on the substrate 10.

[0109] In this way, since the spacing distance between the first area 41 and the substrate 10 is smaller than the spacing distance between the second area 42 and the substrate 10, and the orthographic projection of the first end 723 on the substrate 10 is located within the orthographic projection of the first area 41 on the substrate 10, the display panel 100 provided in the present application can form the first end 723 when the first encapsulation layer 70 is evaporated, thereby facilitating the processing of the first end 723.

[0110] Optionally, in some examples, a first root portion 721 is provided on a side of the first extension portion 72 away from the first end portion 723, and in a direction from the first root portion 721 to the first end portion 723, the first region 41 is located on one side of the second region 42, and the orthographic projection of the first end portion 723 on the substrate 10 is located on a side where the orthographic projection of the second region 42 on the substrate 10 is close to the orthographic projection of the first region 41 on the substrate 10.

[0111] Exemplarily, the first region 41 surrounds at least a portion of the second region 42. In this way, the orthographic projection of the first end 723 on the substrate 10 can surround at least a portion of the orthographic projection of the second region 42 on the substrate 10, which is beneficial to improving packaging reliability.

[0112] See also Fig.11 In some embodiments, a side of the pixel definition layer 30 facing away from the substrate 10 includes a third region 31 and a fourth region 32, the spacing distance between the third region 31 and the substrate 10 is smaller than the spacing distance between the fourth region 32 and the substrate 10, the orthographic projection of the first region 41 on the substrate 10 is located within the orthographic projection of the third region 31 on the substrate 10, the orthographic projection of the second region 42 on the substrate 10 partially overlaps with the orthographic projection of the fourth region 32 on the substrate 10, and the orthographic projection of the first end portion 723 on the substrate 10 is located within the orthographic projection of the third region 31 on the substrate 10.

[0113] Optionally, a portion of the isolation structure 40 is disposed in the third region 31, and another portion of the isolation structure 40 is disposed in the fourth region 32. It is understood that the first region 41 may be located on a side of the portion of the isolation structure 40 that is away from the substrate 10, and the second region 42 may be located on a side of the portion of the isolation structure 40 that is away from the substrate 10.

[0114] In this way, since the spacing distance between the third region 31 and the substrate 10 is smaller than the spacing distance between the fourth region 32 and the substrate 10, when preparing the isolation structure 40, a height difference can be formed on the surface of the side of the isolation structure 40 that is away from the substrate 10, and the orthographic projection of the first end 723 on the substrate 10 is located within the orthographic projection of the third region 31 on the substrate 10. The display panel 100 provided in the present application can form the first end 723 when the first encapsulation layer 70 is evaporated, which facilitates the processing of the first end 723.

[0115] In some embodiments, an orthographic projection of the first end portion 723 on the substrate 10 is spaced apart from an orthographic projection of the light emitting unit on the substrate 10 .

[0116] In this way, the light-emitting unit can leave a gap at the position corresponding to the first end 723, so that the first encapsulation layer 70 fills the gap, thereby forming the first end 723 at the position corresponding to the gap, which facilitates the processing of the first end 723.

[0117] In addition, the notch left by the light emitting unit at the position corresponding to the first end 723 is beneficial to improving light transmittance.

[0118] Exemplarily, an orthographic projection of the first end portion 723 on the substrate 10 does not overlap with an orthographic projection of the first electrode 20 on the substrate 10 .

[0119] In this way, the first electrode 20 of the light-emitting unit can leave a gap in the pixel definition layer 30 at a position corresponding to the first end 723, so that the isolation structure 40 fills the gap, and the portion of the isolation structure 40 corresponding to the gap is recessed in the direction toward the substrate 10, so that the first encapsulation layer 70 can form a first end 723 at a position corresponding to the gap, which facilitates the processing of the first end 723.

[0120] Exemplarily, the orthographic projection of a portion of the first extension portion 72 on the substrate 10 coincides with the orthographic projection of the first electrode 20 of the light emitting unit on the substrate 10 .

[0121] Exemplarily, the second electrode 60 of the light emitting unit includes a first end and a second end opposite to each other, the first end of the second electrode 60 overlaps the isolation structure 40 , and the second end of the second electrode 60 is spaced apart from the isolation structure 40 .

[0122] In this way, a gap can be left between the second end of the second electrode 60 of the light-emitting unit and the isolation structure 40 , which is beneficial to improving light transmittance.

[0123] Optionally, the orthographic projection of the first end of the second electrode 60 on the substrate 10 is located within the orthographic projection of the first extension portion 72 on the substrate 10 , and is spaced apart from the orthographic projection of the first end portion 723 on the substrate 10 .

[0124] Optionally, an orthographic projection of the second end of the second electrode 60 on the substrate 10 is spaced apart from an orthographic projection of the first extension portion 72 on the substrate 10 .

[0125] Exemplarily, the first electrode 20 includes a third end and a fourth end opposite to each other, the orthographic projection of the third end of the first electrode 20 on the substrate 10 is located within the orthographic projection of the isolation structure 40 on the substrate 10, and the orthographic projection of the fourth end of the first electrode 20 on the substrate 10 is spaced apart from the orthographic projection of the isolation structure 40 on the substrate 10.

[0126] In this way, the first electrode 20 can leave a gap between the fourth end and the isolation structure 40, and then the pixel definition layer 30 leaves a gap at the corresponding position, and the first encapsulation layer 70 fills the gap, so that the first end 723 can be formed at the corresponding position of the gap, which facilitates the processing of the first end 723.

[0127] Optionally, the orthographic projection of the third end of the first electrode 20 on the substrate 10 is located within the orthographic projection of the first extension portion 72 on the substrate 10 , and is spaced apart from the orthographic projection of the first end portion 723 on the substrate 10 .

[0128] Optionally, the orthographic projection of the fourth end of the first electrode 20 on the substrate 10 is spaced apart from the orthographic projection of the first extension portion 72 on the substrate 10 .

[0129] In some embodiments, the portion of the orthographic projection of the first electrode 20 on the substrate 10 overlaps with the orthographic projection of the isolation structure 40 on the substrate 10, and a first root 721 is provided on the side of the first extension portion 72 away from the first end 723. Along the direction from the first root 721 to the first end 723, the size of the overlapping portion of the orthographic projection of the first electrode 20 on the substrate 10 and the orthographic projection of the isolation structure 40 on the substrate 10 is b, and the value range of b is: 1μm≤a≤2μm.

[0130] It is understandable that the size of the overlapping portion of the orthographic projection of the first electrode 20 on the substrate 10 and the orthographic projection of the isolation structure 40 on the substrate 10 is between 1 μm and 2 μm, so that the third area 31 and the fourth area 32 can be formed on the side of the pixel definition layer 30 facing away from the substrate 10.

[0131] Optionally, the value range of b is: 1 μm≤a≤1.5 μm. Optionally, the value range of b is: 1.5 μm≤a≤2 μm.

[0132] Exemplarily, the value of b may be: 1 μm, 1.25 μm, 1.5 μm, 1.75 μm, 2 μm, etc.

[0133] Please also read Fig.12 and Fig.13 In some embodiments, the packaging portion further includes a second extension portion 73, the second extension portion 73 is located on a side of the isolation structure 40 away from the substrate 10, at least part of the orthographic projection of the second extension portion 73 on the substrate 10 coincides with the orthographic projection of the isolation structure 40 on the substrate 10, and the edge of the second extension portion 73 is provided with a second end portion 733 bent in a direction toward the substrate 10. Optionally, the second extension portion 73 may be spaced apart from the isolation structure 40.

[0134] Optionally, the first extending portion 72 and the second extending portion 73 are located at an edge of the packaging portion, and the first extending portion 72 and the second extending portion 73 are arranged opposite to each other.

[0135] Through the above technical solution, the edge of the second extension portion 73 is provided with a second end portion 733 bent toward the direction of the substrate 10. When the photoresist is stripped off, the photoresist is easily separated from the second extension portion 73 at the second end portion 733, which can reduce the force on the second extension portion 73, thereby helping to prevent the second extension portion 73 from falling off or breaking, and further helping to improve the packaging reliability.

[0136] In addition, the second end 733 is bent in the direction toward the substrate 10. When the photoresist is stripped, the force applied by the photoresist on the second end 733 has an angle with the direction perpendicular to the substrate 10, which can further reduce the force on the second end 733, thereby further helping to prevent the second extension portion 73 from falling off or breaking, and further helping to improve packaging reliability.

[0137] It can be understood that, in some examples, the first extension portion 72 and the second extension portion 73 of the same packaging portion can be connected as one. Exemplarily, the first extension portion 72 and the second extension portion 73 extend along the edge of the packaging portion, and the two ends of the first extension portion 72 along the extension direction are respectively connected to the two ends of the second extension portion 73 along the extension direction. That is, the first extension portion 72 and the second extension portion 73 jointly surround the same light-emitting unit.

[0138] Exemplarily, the first extending portion 72 of one packaging portion of two adjacent packaging portions may be disposed opposite to the second extending portion 73 of the other packaging portion.

[0139] In some embodiments, the second extension portion 73 includes a second root portion 731, a second extension section 732, and a second end portion 733 connected in sequence, the second root portion 731 is located on a side of the second extension portion 73 away from the second end portion 733, the second root portion 731 is connected to the package body 71, and the minimum spacing distance between the second end portion 733 and the substrate 10 is smaller than the spacing distance between the second extension section 732 and the substrate 10. Therefore, when the photoresist is stripped, the photoresist is easily separated from the second extension portion 73 at the second end portion 733, which can reduce the force on the second extension portion 73, thereby facilitating the second extension portion 73 from falling off or breaking, and further facilitating the improvement of the packaging reliability.

[0140] In this way, the display panel 100 provided in the embodiment of the present application can help improve packaging reliability, thereby preventing the light-emitting units in the isolation opening 401 from being damaged by subsequent processes.

[0141] It can be understood that the size of the orthographic projection of the second end 733 on the substrate 10 along the direction from the second root 731 to the second end 733 is the same as the size of the orthographic projection of the first end 723 on the substrate 10 along the direction from the first root 721 to the first end 723, and will not be repeated here.

[0142] Please continue reading Figure 6 Optionally, in some examples, the spacing distance between the second end portion 733 and the substrate 10 remains unchanged in a direction away from the second root portion 731 .

[0143] Please continue reading Figure 7 Optionally, in some examples, the spacing distance between the second end portion 733 and the substrate 10 gradually decreases in a direction away from the second root portion 731 .

[0144] Please continue reading Figure 8 Optionally, in some examples, the spacing distance between the second end portion 733 and the substrate 10 first decreases and then remains unchanged in a direction away from the second root portion 731 .

[0145] Please continue reading Fig. 9 Optionally, in some examples, the spacing distance between the second end portion 733 and the substrate 10 first decreases and then increases in a direction away from the second root portion 731 .

[0146] It should be noted that the spacing distance between the second end portion 733 and the substrate 10 may be the spacing distance between the side of the second end portion 733 facing the substrate 10 and the substrate 10. In addition, the variation trend of the spacing distance between the side of the second end portion 733 facing away from the substrate 10 and the substrate 10 is the same as the variation trend of the spacing distance between the side of the second end portion 733 facing the substrate 10 and the substrate 10. Furthermore, the shape of the second end portion 733 may be changed according to different processes. In addition, the protrusion on the side of the second end portion 733 facing the substrate 10 may further generate a torque to resist the second extension portion 73 from falling off, which is beneficial to further improve the packaging reliability.

[0147] In some embodiments, a side of the isolation structure 40 facing away from the substrate 10 includes a first region 41 and a fifth region 43, the spacing distance between the first region 41 and the substrate 10 is smaller than the spacing distance between the fifth region 43 and the substrate 10, the orthographic projection of the fifth region 43 on the substrate 10 is located within the orthographic projection of the second extension portion 73 on the substrate 10, and the orthographic projection of the second end portion 733 on the substrate 10 is located within the orthographic projection of the first region 41 on the substrate 10.

[0148] In this way, since the spacing distance between the first region 41 and the substrate 10 is smaller than the spacing distance between the fifth region 43 and the substrate 10, and the orthographic projection of the second end 733 on the substrate 10 is located within the orthographic projection of the first region 41 on the substrate 10, the display panel 100 provided in the present application can form the second end 733 when the first encapsulation layer 70 is evaporated, which facilitates the processing of the second end 733.

[0149] Optionally, in some examples, a second root 731 is provided on a side of the second extension portion 73 away from the second end 733, and in a direction from the second root 731 to the second end 733, the first region 41 is located on one side of the fifth region 43, and the orthographic projection of the second end 733 on the substrate 10 is located on a side of the orthographic projection of the fifth region 43 on the substrate 10 close to the first region 41.

[0150] Exemplarily, the first region 41 surrounds at least a portion of the fifth region 43. In this way, the orthographic projection of the second end 733 on the substrate 10 can surround at least a portion of the orthographic projection of the fifth region 43 on the substrate 10, which is beneficial to improving packaging reliability.

[0151] In some embodiments, the side of the isolation structure 40 facing away from the substrate 10 also includes a second region 42, the spacing distance between the first region 41 and the substrate 10 is smaller than the spacing distance between the second region 42 and the substrate 10, the orthographic projection of the second region 42 on the substrate 10 is located within the orthographic projection of the first extension portion 72 on the substrate 10, and the orthographic projection of the first end portion 723 on the substrate 10 is located within the orthographic projection of the first region 41 on the substrate 10.

[0152] In this way, since the spacing distance between the first area 41 and the substrate 10 is smaller than the spacing distance between the second area 42 and the substrate 10, and the orthographic projection of the second end 733 on the substrate 10 is located within the orthographic projection of the first area 41 on the substrate 10, the display panel 100 provided in the present application can form the second end 733 when the first encapsulation layer 70 is evaporated, which facilitates the processing of the second end 733.

[0153] Optionally, the first region 41 is located between the second region 42 and the fifth region 43 , the first end 723 is located on a side of the second region 42 close to the first region 41 , and the second end 733 is located on a side of the fifth region 43 close to the first region 41 .

[0154] In this way, the display panel 100 provided in the embodiment of the present application can form the first extending portion 72 and the second extending portion 73 when forming the packaging portion.

[0155] In some embodiments, the display panel 100 provided in the embodiment of the present application may further include a second encapsulation layer and a third encapsulation layer, the second encapsulation layer is located on the side of the first encapsulation layer 70 away from the substrate 10 , and the third encapsulation layer is located on the side of the second encapsulation layer away from the substrate 10 .

[0156] Optionally, the first encapsulation layer 70 may be an inorganic encapsulation layer formed by chemical vapor deposition (CVD) and patterning.

[0157] Optionally, the second encapsulation layer may be made by inkjet printing (Ink Jet Print DAM, IJP).

[0158] Optionally, the first encapsulation layer 70 may be an inorganic encapsulation layer formed by chemical vapor deposition (CVD).

[0159] Optionally, the display panel 100 provided in the present application may further include other film layers, and the other film layers are located at the first layer. The other film layers may include polarizing films, optically clear adhesives (OCA), and the like.

[0160] The embodiment of the present application further provides a display device, which includes the display panel 100 of the above embodiment. The display device provided by the present application has the same or similar technical effects as the above display panel 100, which will not be described in detail here.

[0161] Optionally, the display device can be an electronic product such as a mobile phone, a television, a tablet computer, a laptop computer, a desktop computer, a vehicle-mounted display terminal, a wearable device, a human-computer interaction terminal device, etc.

[0162] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A display panel, characterized in that: include: substrate; An isolation structure, disposed on one side of the substrate and defining a plurality of isolation openings; A plurality of light-emitting units, wherein the light-emitting units are disposed in corresponding isolation openings; A first encapsulation layer is arranged on a side of the light-emitting unit away from the substrate, the first encapsulation layer comprises a plurality of encapsulation parts, and the encapsulation parts cover the corresponding light-emitting units; The packaging portion includes a first extension portion, at least a portion of the first extension portion is located on a side of the isolation structure that is away from the substrate, at least a portion of the first extension portion is located within the orthographic projection of the isolation structure on the substrate, and an edge of the first extension portion is provided with a first end portion bent in a direction toward the substrate.

2. The display panel according to claim 1, wherein: The packaging part includes a packaging body, which covers the light-emitting unit. A first root is provided on a side of the first extension part away from the first end. The first extension part also includes a first extension section connecting the first end and the first root. The first root is connected to the packaging body, and a minimum spacing distance between the first end and the substrate is smaller than a spacing distance between the first extension section and the substrate.

3. The display panel according to claim 2, wherein: The spacing distance between the first end and the base gradually decreases or remains unchanged in a direction away from the first root; Alternatively, the spacing distance between the first end portion and the base first decreases and then increases in a direction away from the first root portion; Alternatively, the spacing distance between the first end portion and the base first decreases and then remains unchanged in a direction away from the first root portion.

4. The display panel according to claim 1, wherein: The isolation structure comprises a first region and a second region on a side facing away from the substrate, the first region is spaced from the substrate by a smaller distance than the second region, the orthographic projection of the second region on the substrate is located within the orthographic projection of the first extension portion on the substrate, and the orthographic projection of the first end portion on the substrate is located within the orthographic projection of the first region on the substrate; Preferably, the first extension portion is provided with a first root on a side away from the first end portion, and in a direction from the first root to the first end portion, the first region is located on one side of the second region, and the orthographic projection of the first end portion on the substrate is located on a side where the orthographic projection of the second region on the substrate is close to the orthographic projection of the first region on the substrate.

5. The display panel according to claim 4, wherein: The display panel also includes a pixel definition layer, which is located on one side of the substrate and on the side where the isolation structure is located. The isolation structure is arranged on the side of the pixel definition layer away from the substrate. The side of the pixel definition layer away from the substrate includes a third area and a fourth area. The spacing distance between the third area and the substrate is smaller than the spacing distance between the fourth area and the substrate. The orthographic projection of the first area on the substrate is located within the orthographic projection of the third area on the substrate. The orthographic projection of the second area on the substrate partially overlaps with the orthographic projection of the fourth area on the substrate. The orthographic projection of the first end on the substrate is located within the orthographic projection of the third area on the substrate.

6. The display panel according to claim 5, wherein: A portion of the isolation structure is disposed in the third region, and another portion of the isolation structure is disposed in the fourth region.

7. The display panel according to claim 1, wherein: The orthographic projection of the first end on the substrate is arranged at an interval with the orthographic projection of the light emitting unit on the substrate.

8. The display panel according to claim 1, wherein: The display panel further includes: The first electrode layer includes a plurality of first electrodes, each of which is arranged on a side of the corresponding light-emitting unit close to the substrate, and the orthographic projection of the first end on the substrate does not overlap with the orthographic projection of the first electrode on the substrate.

9. The display panel according to claim 1, wherein: The light-emitting unit includes a second electrode and a light-emitting layer, the light-emitting layer is located on a side of the second electrode away from the substrate, the second electrode includes a first end and a second end opposite to each other, the first end of the second electrode overlaps the isolation structure, and the second end of the second electrode is spaced apart from the isolation structure; Preferably, the orthographic projection of the first end of the second electrode on the substrate is located within the orthographic projection of the first extension portion on the substrate.

10. The display panel according to claim 1, wherein: The display panel further includes a first electrode layer, the first electrode layer includes a plurality of first electrodes, each of the first electrodes is arranged on a side of the corresponding light-emitting unit close to the substrate, the first electrode includes a third end and a fourth end opposite to each other, the orthographic projection of the third end on the substrate is located within the orthographic projection of the isolation structure on the substrate, and the orthographic projection of the fourth end on the substrate is arranged to be spaced from the orthographic projection of the isolation structure on the substrate; Preferably, the orthographic projection of the third end on the base is located within the orthographic projection of the first extension portion on the base, and is spaced apart from the orthographic projection of the first end portion on the base; Preferably, the orthographic projection of the fourth end on the base is spaced apart from the orthographic projection of the first extension portion on the base.

11. The display panel according to claim 1, wherein: The packaging portion also includes a second extension portion, the first extension portion and the second extension portion are located at the edge of the packaging portion, the first extension portion and the second extension portion are arranged opposite to each other, at least a portion of the second extension portion is located on the side of the isolation structure away from the substrate, at least a portion of the second extension portion on the orthographic projection of the substrate is located within the orthographic projection of the isolation structure on the substrate, and the edge of the second extension portion is provided with a second end portion bent in a direction toward the substrate.

12. The display panel according to claim 11, wherein: The packaging part includes a packaging body, the packaging body covers the light-emitting unit, a second root portion is provided on a side of the second extension portion away from the first end portion, the second extension portion further includes a second extension segment connecting the second end portion and the second root portion, the second root portion is connected to the packaging body, and a minimum spacing distance between the second end portion and the substrate is smaller than a spacing distance between the second extension segment and the substrate; Preferably, the spacing distance between the second end and the base gradually decreases or remains unchanged in a direction away from the second root; Preferably, the spacing distance between the second end portion and the base first decreases and then increases in a direction away from the second root portion; Preferably, the spacing distance between the second end portion and the base first decreases and then remains unchanged in a direction away from the second root portion.

13. The display panel according to claim 11, wherein: A side of the isolation structure facing away from the substrate includes a first region and a fifth region, the spacing distance between the first region and the substrate is smaller than the spacing distance between the fifth region and the substrate, the orthographic projection of the fifth region on the substrate is located within the orthographic projection of the second extension portion on the substrate, and the orthographic projection of the second end portion on the substrate is located within the orthographic projection of the first region on the substrate.

14. The display panel according to claim 13, wherein: A second root is provided on a side of the second extension portion away from the second end portion, and in a direction from the second root portion to the second end portion, the first region is located on one side of the fifth region, and the orthographic projection of the second end portion on the substrate is located on a side where the orthographic projection of the fifth region on the substrate is close to the orthographic projection of the first region on the substrate.

15. The display panel according to claim 13, wherein: The side of the isolation structure facing away from the substrate also includes a second area, the spacing distance between the first area and the substrate is smaller than the spacing distance between the second area and the substrate, the orthographic projection of the second area on the substrate is located within the orthographic projection of the first extension portion on the substrate, and the orthographic projection of the first end portion on the substrate is located within the orthographic projection of the first area on the substrate.

16. The display panel according to claim 15, wherein: The first region is located between the second region and the fifth region, the first end is located on a side of the second region close to the first region, and the second end is located on a side of the fifth region close to the first region.

17. The display panel according to claim 1, wherein: A first root is provided on a side of the first extension away from the first end. Along a direction from the first root to the first end, a size of a positive projection of the first end on the substrate is a, and a range of a is: 0.2 μm≤a≤0.4 μm.

18. The display panel according to claim 8, wherein: The part of the orthographic projection of the first electrode on the substrate overlaps with the orthographic projection of the isolation structure on the substrate, and a first root is provided on the side of the first extension portion away from the first end. Along the direction from the first root to the first end, the size of the overlapping part of the orthographic projection of the first electrode on the substrate and the orthographic projection of the isolation structure on the substrate is b, and the value range of b is: 1μm≤a≤2μm.

19. A display panel, characterized in that: include: substrate; An isolation structure, disposed on one side of the substrate and defining a plurality of isolation openings; A plurality of light-emitting units, wherein the light-emitting units are arranged at the corresponding isolation openings; A first encapsulation layer is arranged on a side of the light-emitting unit away from the substrate, the first encapsulation layer comprises a plurality of encapsulation parts, and the encapsulation parts cover the corresponding light-emitting units; The packaging portion includes a first extension portion, at least a portion of the first extension portion is located on a side of the isolation structure facing away from the substrate, at least a portion of the first extension portion on an orthographic projection of the substrate is located within the orthographic projection of the isolation structure on the substrate, the first extension portion includes a first part and a second part, the first part is located on a side of the second part close to an edge of the first extension portion, and a minimum spacing distance between the first part and the substrate is smaller than a spacing distance between the second part and the substrate.

20. A display device, characterized in that: Comprising the display panel as claimed in any one of claims 1 to 19.

Images