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, an isolation structure, a plurality of light-emitting units and a first packaging layer, the isolation structure is located on one side of the substrate in the thickness direction, and a plurality of isolation openings are defined by the isolation structure; the orthographic projection of the light-emitting unit on the substrate is located in the orthographic projection of the corresponding isolation opening on the substrate. At least one first groove is formed in the face, away from the substrate, of the isolation structure, the first packaging layer is located on the side, away from the substrate, of the light-emitting unit, and part of the first packaging layer is located on the side, away from the substrate, of the isolation structure and fills at least part of the first groove. Therefore, the reliability of the display panel provided by the invention 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] Currently, flat panel display devices have the advantages of high image quality, power saving, small thickness and wide application range, and are widely used in various consumer electronic products such as mobile phones, televisions, laptops, desktop computers, etc.

[0003] In the traditional display panel preparation process, the light-emitting pixel graphics are usually realized through the fine metal mask (FMM). FMM technology is mature and has rich experience in mass production. However, FMM technology also has problems such as limited accuracy, high development cost, and long development cycle. The fine metal mask-free technology eliminates the limitations of traditional OLED processes on display size, resolution and other screen performance, and has the advantages of high performance, full-domain size, and agile delivery. Patents CN118251982A, 202410864269.8, PCT / CN2024 / 098407, PCT / CN2024 / 102783, PCT / CN2024 / 098217, PCT / CN2024 / 099419, PCT / CN2024 / 099072, CN117979755A, CN117998900A, CN117062489A, CN117580403A, CN116583155A, CN116669477A, ​​CN117396039A, CN116669480A, CN116600606A, and CN117500332A record the relevant content of the non-fine metal mask technology for reference.

[0004] However, the performance and process performance of current display products need to be improved. Summary of the invention

[0005] The purpose of the embodiments of the present application is to provide a display panel and a display device to improve the performance / process performance of the display device.

[0006] To achieve the above purpose, the technical solution adopted in this application is:

[0007] In a first aspect, a display panel is provided, the display panel comprising: a substrate, an isolation structure, a plurality of light-emitting units and a first encapsulation layer, the isolation structure is located on one side of the substrate along the thickness direction, the isolation structure defines a plurality of isolation openings, the orthographic projection of the light-emitting unit on the substrate is located within the orthographic projection of the corresponding isolation opening on the substrate. At least one first groove is provided on a side of the isolation structure facing away from the substrate, the first encapsulation layer is located on a side of the light-emitting unit facing away from the substrate, a portion of the first encapsulation layer is located on a side of the isolation structure facing away from the substrate, and fills at least a portion of the first groove.

[0008] Through the above technical solution, the display panel provided by the present application is provided with a first groove on the side of the isolation structure facing away from the substrate, and the portion of the first encapsulation layer located on the side of the isolation structure facing away from the substrate fills at least a portion of the first groove. The portion of the first encapsulation layer filled in the first groove can block the gap between the first encapsulation layer and the isolation structure, and to a certain extent prevent water and oxygen from invading the gap between the first encapsulation layer and the isolation structure, thereby preventing water and oxygen from invading the light-emitting unit, and improving the encapsulation reliability of the first encapsulation layer.

[0009] In addition, the portion of the first packaging layer filled in the first groove can enhance the bonding force between the portion of the first packaging layer located on the side of the isolation structure away from the substrate and the isolation structure, so that the portion of the first packaging layer located on the side of the isolation structure away from the substrate is not easy to break, thereby improving the reliability of the portion of the first packaging layer located on the side of the isolation structure away from the substrate.

[0010] Therefore, the display panel provided by the present application can improve packaging reliability, thereby improving the performance of the display device.

[0011] In some embodiments, the isolation structure includes a support portion and an eave portion which are sequentially stacked in a direction away from the substrate, and the first groove is at least provided in the eave portion.

[0012] Optionally, the orthographic projection of the first groove on the substrate is located within the orthographic projection of the substrate on a side of the support portion facing away from the substrate.

[0013] Optionally, the first groove passes through the eaves portion and extends into the supporting portion.

[0014] Optionally, the first groove includes a groove bottom and a groove opening, the groove bottom is arranged on a side of the support portion facing away from the substrate, and the groove opening is arranged on the eaves portion and communicated with the groove bottom.

[0015] Optionally, the orthographic projection of the notch on the substrate is located within the orthographic projection of the groove bottom on the substrate;

[0016] Optionally, along a direction perpendicular to the substrate, a side of the first encapsulation layer in the first groove facing away from the substrate is not lower than a side of the eaves portion facing away from the substrate.

[0017] In some embodiments, an orthographic projection of the first groove on the substrate is located on at least one side of the isolation opening.

[0018] Optionally, an orthographic projection of the first groove on the substrate is arranged around at least a portion of an orthographic projection of the isolation opening on the substrate.

[0019] Optionally, the first groove is arranged around one of the two adjacent isolation openings, and the first packaging layer corresponding to one of the two adjacent isolation openings fills a first groove section of the first groove, and the first packaging layer corresponding to the other of the two adjacent isolation openings fills a second groove section of the first groove.

[0020] Optionally, the first groove includes at least two groove sub-segments, adjacent groove sub-segments are arranged at intervals, and at least two groove sub-segments are arranged on different sides of the isolation opening, wherein the orthographic projections of the groove sub-segments on the substrate are located between the orthographic projections of adjacent isolation openings on the substrate.

[0021] Optionally, the first encapsulation layer includes a plurality of encapsulation parts, the orthographic projection of the isolation opening on the substrate is located within the orthographic projection of the corresponding encapsulation part on the substrate, the encapsulation part covers the corresponding light-emitting unit, and adjacent encapsulation parts fill different groove sub-segments.

[0022] Optionally, there are a plurality of first grooves, and the plurality of first grooves are arranged at intervals in a direction approaching or away from the isolation opening.

[0023] Optionally, there are a plurality of first grooves, each of which is arranged corresponding to the isolation opening, and the first packaging layer fills the first groove.

[0024] In some embodiments, the depth of the first groove is h, and the value range of h is: 50nm≤h≤500nm.

[0025] Optionally, the value range of h is: 200nm≤h≤500nm.

[0026] In some embodiments, the first packaging layer includes a plurality of packaging parts, the packaging parts include a packaging body and an extension part, the packaging body is located in the isolation opening, the orthographic projection of the light-emitting unit on the substrate is located in the orthographic projection of the packaging body on the substrate, the extension part is located on the side of the isolation structure away from the substrate, the extension part is connected to the edge of the packaging body, and the extension part of at least one packaging part includes a first filling part, which fills at least part of the first groove.

[0027] Optionally, the orthographic projection of the first groove on the substrate is located within the orthographic projection of the corresponding extension on the substrate.

[0028] In some embodiments, each extending portion includes at least one first filling portion, and each first filling portion fills at least a portion of one first groove.

[0029] In some embodiments, the extension portion includes a first connecting portion, an end of the first connecting portion close to the package body is connected to the edge of the package body, and an end of the first connecting portion away from the package body is connected to the first filling portion, the light-emitting unit includes a main body portion, a first residual portion, and a second residual portion, the main body portion is located in the isolation opening, and the orthographic projection of the main body portion on the substrate is located in the orthographic projection of the package body on the substrate, the orthographic projection of the first residual portion on the substrate is located in the orthographic projection of the first connecting portion on the substrate, and the orthographic projection of the second residual portion on the substrate is located in the orthographic projection of the first filling portion on the substrate.

[0030] Optionally, at least one extension portion includes a plurality of first filling portions, the extension portion also includes a second connecting portion, the second connecting portion is located on a side of the first connecting portion away from the package body, an end of the second connecting portion close to the package body is connected to one of two adjacent first filling portions of the same extension portion, and an end of the second connecting portion away from the package body is connected to the other of two adjacent first filling portions of the same extension portion, and the light-emitting unit also includes a third residual portion, and the orthographic projection of the third residual portion on the substrate is located within the orthographic projection of the second connecting portion on the substrate.

[0031] In some embodiments, the extension portions of every two adjacent encapsulation portions are spaced apart on a side of the isolation structure facing away from the substrate.

[0032] In some embodiments, at least two adjacent encapsulation portions overlap in orthographic projection on the substrate.

[0033] Optionally, a portion where the orthographic projections of at least two adjacent encapsulation parts overlap on the substrate is located within the orthographic projection of the isolation structure on the substrate.

[0034] Optionally, a portion where the orthographic projections of at least two adjacent encapsulation portions overlap on the substrate covers the orthographic projection of the first groove on the substrate.

[0035] In some embodiments, a side wall of the isolation structure facing the isolation opening is provided with a second groove communicating with the isolation opening.

[0036] Optionally, the second groove is arranged around the isolation opening.

[0037] In some embodiments, the isolation structure includes a base portion, a first support portion, a first eave portion, a second support portion, and a second eave portion stacked in sequence in a direction away from the substrate, and the first groove is at least provided in the second eave portion.

[0038] Optionally, the orthographic projection of the first groove on the substrate is located within the orthographic projection of the substrate on a side of the second supporting portion facing away from the substrate.

[0039] Optionally, the first groove passes through the second eaves portion and extends into the second supporting portion.

[0040] Optionally, the first groove includes a groove bottom and a groove opening, the groove bottom is arranged on a side of the second support portion facing away from the substrate, and the groove opening is arranged on the second eaves portion and communicated with the groove bottom.

[0041] Optionally, the orthographic projection of the notch on the substrate is located within the orthographic projection of the groove bottom on the substrate.

[0042] Optionally, the orthographic projection of the first eave portion on the substrate is located within the range of the orthographic projection of the second eave portion on the substrate.

[0043] In some embodiments, a second groove communicating with the isolation opening is formed between the first eave portion and the second eave portion.

[0044] Optionally, the second groove is arranged around the isolation opening.

[0045] In some embodiments, the thickness of the second supporting portion is d1, the thickness of the second eaves portion is d2, and 200 nm ≤ d1 + d2 ≤ 500 nm.

[0046] Optionally, 100nm≤d1≤200nm.

[0047] Optionally, 100nm≤d2≤300nm.

[0048] In some embodiments, the first packaging layer includes a plurality of packaging parts, the packaging parts include a packaging body, the orthographic projection of the packaging body on the substrate is located within the orthographic projection of the isolation opening on the substrate, at least a portion of the orthographic projection of the light-emitting unit on the substrate is located within the orthographic projection of the packaging body on the substrate, a portion of the packaging body is connected to the side wall of the isolation structure toward the isolation opening, and fills at least a portion of the second groove.

[0049] In a second aspect, the present application provides another display panel, comprising: a substrate, an isolation structure, a plurality of light-emitting units and a first encapsulation layer, wherein the isolation structure is located on one side of the substrate along the thickness direction, the isolation structure defines an isolation opening, and a second groove connected to the isolation opening is provided on the side wall of the isolation structure facing the isolation opening. At least a portion of the orthographic projection of the light-emitting unit on the substrate is located within the orthographic projection of the corresponding isolation opening on the substrate, the first encapsulation layer is located on the side of the light-emitting unit facing away from the substrate, a portion of the first encapsulation layer is connected to the side wall of the isolation structure facing the isolation opening, and fills at least a portion of the second groove.

[0050] Through the above technical scheme, the display panel provided by the present application is provided with a second groove connected to the isolation opening on the side wall of the isolation structure facing the isolation opening, and the part of the first encapsulation layer connected to the side wall of the isolation structure facing the isolation opening fills at least a part of the second groove. The part of the first encapsulation layer filled in the second groove can increase the path for water and oxygen to invade the light-emitting unit through the connection seam between the first encapsulation layer and the isolation structure, increase the difficulty of water and oxygen invading the light-emitting unit, and thus avoid water and oxygen invading the light-emitting unit to a certain extent, thereby improving the encapsulation reliability of the first encapsulation layer.

[0051] Therefore, the display panel provided by the present application can improve packaging reliability, thereby improving the performance of the display device.

[0052] In some embodiments, the isolation structure includes a first support portion, a first eave portion, a second support portion, and a second eave portion stacked in sequence in a direction away from the substrate, and a second groove is formed between the first eave portion and the second eave portion.

[0053] In some embodiments, the thickness of the second supporting portion is d1, the thickness of the second eaves portion is d2, and 200 nm ≤ d1 + d2 ≤ 500 nm.

[0054] Optionally, 100nm≤d1≤200nm.

[0055] Optionally, 100nm≤d2≤300nm.

[0056] In some embodiments, at least one first groove is disposed on a side of the isolation structure facing away from the substrate, and a portion of the first encapsulation layer is located on the side of the isolation structure facing away from the substrate and fills at least a portion of the first groove.

[0057] Optionally, the first groove is at least provided in the second eaves portion.

[0058] Optionally, the first groove passes through the second eaves portion and extends into the second supporting portion.

[0059] Optionally, the first groove includes a groove bottom and a groove opening, the groove bottom is arranged on a side of the second support portion facing away from the substrate, and the groove opening is arranged on the second eaves portion and communicated with the groove bottom.

[0060] Optionally, the orthographic projection of the notch on the substrate is located within the orthographic projection of the groove bottom on the substrate.

[0061] Optionally, along a direction perpendicular to the substrate, a side of the first encapsulation layer in the first groove facing away from the substrate is not lower than a side of the eaves facing away from the substrate.

[0062] In some embodiments, the depth of the first groove is h, and the value range of h is: 50nm≤h≤500nm.

[0063] Optionally, the value range of h is: 200nm≤h≤500nm.

[0064] In some embodiments, the first packaging layer includes a plurality of packaging parts, the packaging part includes a packaging body, the orthographic projection of the packaging body on the substrate is located within the orthographic projection of the isolation opening on the substrate, the orthographic projection of the light-emitting unit on the substrate is located within the orthographic projection of the packaging body on the substrate, and the packaging body includes a second filling part, and the second filling part fills at least a portion of the second groove.

[0065] In a third aspect, the present application provides a display device, which includes a display panel according to any of the above embodiments. The display device provided by the present application has similar technical effects as the display panel according to any of the above embodiments, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] 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.

[0067] Figure 1 A schematic diagram of the planar structure of a display panel provided in an embodiment of the present application;

[0068] Figure 2 for Figure 1 One of the partial enlarged views at A in the middle;

[0069] Figure 3 for Figure 2 One of the cross-sectional views along line BB;

[0070] Figure 4 for Figure 2 The second cross-sectional view along line BB;

[0071] Figure 5 for Figure 1 The second partial enlarged view of point A in the middle;

[0072] Figure 6 for Figure 5 One of the cross-sectional views along line CC;

[0073] Figure 7 for Figure 1 The third partial enlarged view of point A in the middle;

[0074] Figure 8 for Figure 7 One of the cross-sectional views along line DD;

[0075] Fig. 9 for Figure 1 The fourth partial enlarged view of point A in the middle;

[0076] Fig.10 for Fig. 9 One of the cross-sectional views along line EE;

[0077] Fig.11 for Fig. 9 The second cross-sectional view along line EE;

[0078] Fig.12 for Fig. 9 The third cross-sectional view along line EE;

[0079] Fig.13 for Figure 1 The fifth partial enlarged view of point A in the middle;

[0080] Fig.14 for Figure 1 The sixth partial enlarged view of the A in the middle;

[0081] Fig.15 for Fig.14 One of the cross-sectional views along line FF;

[0082] Fig.16 for Fig.14 The second cross-sectional view along the FF line;

[0083] Fig.17 for Fig.14 The third cross-sectional view along the FF line;

[0084] Fig.18 for Fig.14 The fourth cross-sectional view along the FF line;

[0085] Fig.19 for Figure 2 The third cross-sectional view along line BB;

[0086] Fig. 20 for Figure 5 The second cross-sectional view along the CC line;

[0087] Fig.21 for Fig. 9 The fourth cross-sectional diagram along line EE.

[0088] Among them, the reference numerals in the figure are:

[0089] 100-display panel; 10-substrate; 20-first electrode; 30-pixel definition layer; 40-isolation structure; 401-first groove; 4011-groove sub-segment; 4012-first groove segment; 4013-second groove segment; 402-second groove; 403-isolation opening; 41-base part; 42-support part; 43-eaves part; 44-first support part; 45-first eaves part; 46-second support part; 47-second eaves part; 50-light-emitting layer; 60-second electrode; 70-first encapsulation layer; 71-encapsulation body; 711-second filling part; 72-extension part; 721-first connecting part; 722-first filling part; 723-second connecting part; 73-overlapping part. DETAILED DESCRIPTION

[0090] 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.

[0091] 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.

[0092] 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.

[0093] 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.

[0094] Please also read Figure 1 , Figure 2 and Figure 3The 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 .

[0095] 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.

[0096] 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 along 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 403. Optionally, the pixel definition layer 30 and the isolation structure 40 may be located in the display area AA.

[0097] The display panel 100 further includes a light emitting unit. The light emitting layer 50 and the second electrode 60 of the light emitting unit are located in the isolation opening 403 , and the second electrode 60 is located on a side of the light emitting layer 50 facing away from the substrate 10 .

[0098] Optionally, the display panel 100 provided in the present application further includes a first electrode 20 layer, the first electrode 20 layer includes a plurality of first electrodes 20 arranged at intervals, each first electrode 20 is arranged on a side of a corresponding light-emitting unit close to the substrate 10, and the pixel definition layer 30 has a pixel opening, and the pixel opening exposes a portion of the first electrode 20. The light-emitting layer 50 can be connected to the first electrode 20 through the pixel opening.

[0099] Optionally, the first electrode 20 may be an anode, and the second electrode 60 may be a cathode.

[0100] The display panel 100 further includes a first encapsulation layer 70, which is disposed on a side of the pixel definition layer 30 facing away from the substrate 10 and located on a side of the light-emitting unit facing 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 403 and the light-emitting units. In other words, the orthographic projections of the isolation openings 403 and the light-emitting units on the substrate 10 are located within the orthographic projections of the corresponding encapsulation portions on the substrate 10.

[0101] 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. 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 multiple packaging parts 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.

[0102] Each packaging portion may include a main body portion located within the isolation opening 403, and the packaging portion includes an extension portion 72, which is located on the side of the isolation structure 40 facing away from the substrate 10 and is spaced apart from the isolation structure 40, and at least a portion of the extension portion 72's orthographic projection on the substrate 10 coincides with the orthographic projection of the isolation structure 40 on the substrate 10.

[0103] See also Figure 4 The inventors found that the extension part 72 is spaced apart from the isolation structure 40 on the plane perpendicular to the substrate, and the extension part 72 is suspended. When subjected to a force, the extension part 72 is easy to fall off or break. In particular, during the patterning process of the light-emitting unit, when the photoresist is stripped, the extension part 72 is easy to fall off or break, affecting the packaging reliability. This may cause water and oxygen or the chemical solution of the subsequent process to invade the light-emitting unit, resulting in poor light-emitting effect of the light-emitting unit.

[0104] Please also read Figure 5 , Figure 6 , Figure 7 , Figure 8 and Fig. 9 In order to solve the above technical problems, an embodiment of the present application provides a display panel 100, in which at least one first groove 401 is provided on a side of the isolation structure 40 facing away from the substrate 10, and the first encapsulation layer 70 is located on a side of the light-emitting unit facing away from the substrate 10, and a portion of the first encapsulation layer 70 is located on a side of the isolation structure 40 facing away from the substrate 10, and fills at least a portion of the first groove 401.

[0105] In this way, the display panel 100 provided in the present application is provided with a first groove 401 on the side of the isolation structure 40 facing away from the substrate 10, and the portion of the first encapsulation layer 70 located on the side of the isolation structure 40 facing away from the substrate 10 fills at least a portion of the first groove 401. The portion of the first encapsulation layer 70 filled in the first groove 401 can block the gap between the first encapsulation layer 70 and the isolation structure 40, and to a certain extent prevent water, oxygen or liquid medicine from invading the gap between the first encapsulation layer 70 and the isolation structure 40, thereby preventing water, oxygen or liquid medicine from invading the light-emitting unit, improving the encapsulation reliability of the first encapsulation layer 70, and thereby improving the light-emitting effect to a certain extent.

[0106] In addition, the portion of the first packaging layer 70 filled in the first groove 401 can enhance the bonding force between the portion of the first packaging layer 70 located on the side of the isolation structure 40 away from the substrate 10 and the isolation structure 40, so that the portion of the first packaging layer 70 located on the side of the isolation structure 40 away from the substrate 10 is not easy to break, thereby improving the reliability of the portion of the first packaging layer 70 located on the side of the isolation structure 40 away from the substrate 10.

[0107] In summary, the display panel 100 provided in the embodiment of the present application can improve packaging reliability, thereby improving the performance of the display device.

[0108] It is understandable that the first groove 401 can be formed by etching. Of course, the first groove 401 can also be formed by other processes. The first groove 401 is formed earlier than the isolation opening 403, that is, the first groove 401 is prepared first, and then the isolation opening 403 is prepared. When preparing the isolation opening 403, the first groove 401 is covered with a photoresist or other film layer.

[0109] Please continue reading Figure 5 , Figure 6 , Figure 7 and Figure 8 In some embodiments, the isolation structure 40 includes a support portion 42 and an eave portion 43 which are sequentially stacked in a direction away from the substrate 10, and the first groove 401 is at least provided in the eave portion 43. In this way, the first groove 401 can be formed by etching the eave portion 43. It can be understood that the orthographic projection of the support portion 42 on the substrate 10 is located within the orthographic projection of the eave portion 43 on the substrate 10.

[0110] The isolation structure 40 further includes a base portion 41, wherein a support portion 42 is located on a side of the base portion 41 facing away from the substrate 10, and an orthographic projection of the support portion 42 on the substrate 10 is located within an orthographic projection of the base portion 41 on the substrate 10. The orthographic projection of the base portion 41 on the substrate 10 is located within an orthographic projection of the eave portion 43 on the substrate 10.

[0111] Optionally, the orthographic projection of the first groove 401 on the substrate 10 is located within the orthographic projection of the substrate 10 on the side of the support portion 42 facing away from the substrate 10. When the thickness of the eaves portion 43 is small, the support portion 42 can support the portion of the eaves portion 43 where the first groove 401 is provided, and the first groove 401 has little effect on the eaves portion 43.

[0112] Exemplarily, the first groove 401 may be provided only in the eaves portion 43 to reduce the depth of the first groove 401 and reduce the influence of the first groove 401 on the isolation structure 40 .

[0113] For example, the first groove 401 may penetrate the eaves portion 43, and the first groove 401 may extend into the support portion 42. In this way, the thickness of the support portion 42 is relatively large, so that the first groove 401 has a certain depth, and the volume of the first encapsulation layer 70 filling the first groove 401 can be relatively large, which can increase the bonding force between the first encapsulation layer 70 and the isolation structure 40, thereby facilitating the improvement of reliability.

[0114] Exemplarily, the first groove 401 includes a groove bottom and a groove opening, wherein the groove bottom is arranged on a side of the support portion 42 facing away from the substrate 10 , and the groove opening is arranged on the eave portion 43 and communicates with the groove bottom.

[0115] Exemplarily, the orthographic projection of the notch on the substrate 10 is located within the orthographic projection of the groove bottom on the substrate 10. In this way, the area of ​​the groove bottom is larger than the area of ​​the notch, so that the first encapsulation layer 70 entering the groove bottom and the first groove 401 can generate abutment force, thereby improving the connection strength between the first encapsulation layer 70 and the isolation structure 40, making it difficult for the first encapsulation layer 70 entering the groove bottom to exit, thereby facilitating reliability improvement.

[0116] Optionally, along a direction perpendicular to the substrate 10 , a surface of the first encapsulation layer 70 in the first groove 401 facing away from the substrate 10 is not lower than a surface of the eave portion 43 facing away from the substrate 10 .

[0117] Please also read Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 and Fig.13 In some embodiments, the orthographic projection of the first groove 401 on the substrate 10 is located on at least one side of the isolation opening 403 .

[0118] Optionally, the orthographic projection of the first groove 401 on the substrate 10 is arranged around the orthographic projection of at least part of the isolation opening 403 on the substrate 10. In this way, the orthographic projection of the portion of the first encapsulation layer 70 filling the first groove 401 on the substrate 10 is arranged around the orthographic projection of at least part of the isolation opening 403 on the substrate 10, that is, the first groove 401 extends along the edge of the isolation opening 403, which is conducive to improving the connection strength between the portion of the first encapsulation layer 70 filling the first groove 401 and the isolation structure 40, thereby facilitating improving the packaging reliability of the first encapsulation layer 70.

[0119] Exemplarily, there are multiple first grooves 401, each of which is arranged corresponding to an isolation opening 403, and the first packaging layer 70 fills the first groove 401. In this way, the first packaging layer 70 corresponding to each isolation opening 403 can fill the corresponding first groove 401, which can improve the overall packaging reliability of the first packaging layer 70.

[0120] Please also read Figure 5 , Figure 7 and Fig. 9 , illustratively, the first groove 401 extends along an edge of at least one isolation opening 403 .

[0121] Optionally, see Fig.11 and Fig.12 , at least one isolation opening 403 corresponds to two first grooves 401 .

[0122] Exemplarily, there are a plurality of first grooves 401, and the plurality of first grooves 401 are spaced apart in a direction close to or away from the isolation opening 403. In this way, the packaging reliability of the first packaging layer 70 is further improved. For example, when a portion of the first packaging layer 70 filling a first groove 401 is separated from the first groove 401, the other portion of the first packaging layer 70 also fills the next first groove 401, and the first packaging layer 70 is still connected to the isolation structure 40, thereby further improving the packaging reliability of the first packaging layer 70.

[0123] See also Figure 7 and Figure 8 Optionally, the first groove 401 is arranged around one of the two adjacent isolation openings 403, and the first encapsulation layer 70 corresponding to one of the two adjacent isolation openings 403 fills the first groove section 4012 of the first groove 401, and the first encapsulation layer 70 corresponding to the other of the two adjacent isolation openings 403 fills the second groove section 4013 of the first groove 401. That is, the first encapsulation layer 70 corresponding to the two adjacent isolation openings 403 can fill different parts of the same first groove 401, and one first groove 401 can improve the encapsulation reliability of the two first encapsulation layers 70. In this way, the number of first grooves 401 can be reduced, which is conducive to improving the reliability of the isolation structure 40.

[0124] See also Fig.13 The first groove 401 includes at least two groove sub-segments 4011, adjacent groove sub-segments 4011 are arranged at intervals, and at least two groove sub-segments 4011 are arranged on different sides of the isolation opening 403, wherein the orthographic projection of the groove sub-segment 4011 on the substrate 10 is located between the orthographic projections of adjacent isolation openings 403 on the substrate 10. In this way, the packaging reliability of the first packaging layer 70 is further improved. For example, when the first packaging layer 70 fills a groove sub-segment 4011 and the part is separated from the groove sub-segment 4011, the other part of the first packaging layer 70 still fills another groove sub-segment 4011, and the first packaging layer 70 is still connected to the isolation structure 40, thereby further improving the packaging reliability of the first packaging layer 70.

[0125] Optionally, the first encapsulation layer 70 includes a plurality of encapsulation parts, the orthographic projection of the isolation opening 403 on the substrate 10 is located within the orthographic projection of the corresponding encapsulation part on the substrate 10 , the encapsulation part covers the corresponding light-emitting unit, and adjacent encapsulation parts fill different groove sub-segments 4011 .

[0126] In some embodiments, the depth of the first groove 401 is h, and the value range of h is: 50nm≤h≤500nm. It is understandable that the depth h of the first groove 401 can be adjusted according to the model, process or purpose of the display panel 100. Among them, the depth h of the first groove 401 can be controlled within 500nm to reduce the impact on the isolation structure 40 and the pixel definition layer 30 on the side of the isolation structure 40 facing the substrate 10.

[0127] Optionally, the value range of h may be: 500nm≤h≤200nm. Optionally, the value range of h may be: 200nm≤h≤500nm.

[0128] Exemplarily, the value of h can be: 50nm, 100nm, 150nm, 200nm, 250nm, 300nm, 350nm, 400nm, 450nm, 500nm, etc.

[0129] Please continue reading Figures 5 to 13In some embodiments, the encapsulation part includes an encapsulation body 71 and an extension part 72, the encapsulation body 71 is located in the isolation opening 403, and the orthographic projection of the light-emitting unit on the substrate 10 is located in the orthographic projection of the encapsulation body 71 on the substrate 10. The extension part 72 is located on the side of the isolation structure 40 away from the substrate 10, and the extension part 72 is connected to the edge of the encapsulation body 71. Among the multiple encapsulation parts of the first encapsulation layer 70, the extension part 72 of at least one encapsulation part includes a first filling part 722, and the first filling part 722 fills at least a portion of the first groove 401. In this way, when the first filling part 722 of the extension part 72 fills at least a portion of the first groove 401, the extension part 72 can be connected to the isolation structure 40, and is not easy to fall off or break, thereby improving reliability.

[0130] Optionally, the orthographic projection of the first groove 401 on the substrate 10 is located within the orthographic projection of the corresponding extension portion 72 on the substrate 10 .

[0131] Please also read Figure 5 and Figure 6 In some examples, the extension portion 72 of some packaging parts includes a first filling portion 722 filling the first groove 401, and the extension portion 72 of other packaging parts is spaced apart from the isolation structure 40. Exemplarily, in two adjacent packaging parts, the extension portion 72 of the first packaging part includes the first filling portion 722 filling the first groove 401, and the extension portion 72 of the other packaging part is spaced apart from the isolation structure 40. In this way, although the reliability of the extension portion 72 of the other packaging part is lower than the reliability of the extension portion 72 of the first packaging part, the overall reliability of the first packaging layer 70 can be improved.

[0132] Please also read Figures 7 to 13 In some embodiments, each extension portion 72 includes at least one first filling portion 722, and each first filling portion 722 fills at least a portion of a first groove 401. In this way, the reliability of each extension portion 72 can be improved, and the overall reliability of the first packaging layer 70 can be further improved.

[0133] For example, see Figure 7 , Figure 8 , Fig. 9 and Fig.10 Each extension portion 72 is provided with a first filling portion 722 , and each first filling portion 722 fills at least a portion of a first groove 401 .

[0134] For example, see Fig.11The extension portion 72 of some encapsulation parts includes two first filling portions 722 filling the first groove 401 , and the extension portion 72 of other encapsulation parts includes one first filling portion 722 filling the first groove 401 , and each first filling portion 722 fills at least part of a first groove 401 .

[0135] For example, see Fig.12 Each extension portion 72 is provided with two first filling portions 722 , and each first filling portion 722 fills at least a portion of a first groove 401 .

[0136] It is understandable that the number of the first filling portions 722 of one extension portion 72 can be greater, and can be specifically designed according to the model, manufacturing process and purpose of the display panel 100 .

[0137] Please continue reading Figure 6 , Figure 8 and Fig.10 In some embodiments, the extension portion 72 also includes a first connection portion 721 , wherein one end of the first connection portion 721 close to the package body 71 is connected to the edge of the package body 71 , and one end of the first connection portion 721 away from the package body 71 is connected to the first filling portion 722 .

[0138] Among them, the light-emitting unit may include a main body, a first residual portion and a second residual portion, the main body is located in the isolation opening 403, and the orthographic projection of the main body on the substrate 10 is located in the orthographic projection of the package body 71 on the substrate 10, the orthographic projection of the first residual portion on the substrate 10 is located in the orthographic projection of the first connecting portion 721 on the substrate 10, and the orthographic projection of the second residual portion on the substrate 10 is located in the orthographic projection of the first filling portion 722 on the substrate 10.

[0139] In this way, the first residual portion can be filled between the first connection portion 721 and the isolation structure 40, and the first residual portion can support the first connection portion 721 to prevent the first connection portion 721 from being suspended, thereby improving the reliability of the first connection portion 721. Similarly, the second residual portion can support the first filling portion 722 to prevent the first filling portion 722 from being suspended, thereby improving the reliability of the first filling portion 722. In addition, the first residual portion and the second residual portion do not need to be removed by an etching process, which can save processing time and help reduce manufacturing costs.

[0140] Please continue reading Fig.11 and Fig.12Optionally, at least one extension portion 72 includes a plurality of first filling portions 722, and the extension portion 72 also includes a second connection portion 723, the second connection portion 723 is located on a side of the first connection portion 721 away from the package body 71, one end of the second connection portion 723 close to the package body 71 is connected to one of the two adjacent first filling portions 722 of the same extension portion 72, and one end of the second connection portion 723 away from the package body 71 is connected to the other of the two adjacent first filling portions 722 of the same extension portion 72. The light-emitting unit further includes a third residual portion, and the orthographic projection of the third residual portion on the substrate 10 is located within the orthographic projection of the second connection portion 723 on the substrate 10.

[0141] It is understandable that the third residual portion can be filled between the second connection portion 723 and the isolation structure 40, and the third residual portion can support the second connection portion 723 to prevent the second connection portion 723 from being suspended in the air, so as to improve the reliability of the second connection portion 723. In addition, the third residual portion does not need to be removed by an etching process, which can save processing time and help reduce manufacturing costs.

[0142] Please continue reading Figure 6 , Figure 8 , Fig.10 , Fig.11 and Fig.12 In some embodiments, the extension portions 72 of every two adjacent packaging parts are spaced apart on the side of the isolation structure away from the substrate. Different packaging parts do not affect each other, and the packaging parts cover the corresponding light-emitting units, which is conducive to simplifying the manufacturing process.

[0143] Please also read Fig.14 , Fig.15 , Fig.16 , Fig.17 and Figure 8 In some embodiments, at least two adjacent packaging parts overlap in the orthographic projection of the substrate 10. That is, at least two adjacent packaging parts have an overlapping portion 73. It can be understood that the overlapping portion 73 is located at the edge of the extension portion 72 away from the packaging body 71 and is connected to the extension portion 72.

[0144] Optionally, the overlapping portion of at least two adjacent encapsulation portions on the orthographic projection of the substrate 10 is located within the orthographic projection of the isolation structure 40 on the substrate 10 . That is, the overlapping portion of the orthographic projection of the overlap portion 73 on the substrate 10 is located within the orthographic projection of the isolation structure 40 on the substrate 10 .

[0145] In this way, the orthographic projections of two adjacent packaging parts overlap on the substrate 10, so that the extension portion 72 of one packaging part farther away from the substrate 10 can protect the extension portion 72 of another packaging part closer to the substrate 10, and the reliability of at least two adjacent packaging parts with overlapping portions 73 can be increased.

[0146] Optionally, the orthographic projections of at least two adjacent encapsulation parts on the substrate 10 cover the orthographic projections of the first groove 401 on the substrate 10. One of the encapsulation parts has a first filling part 722 filling the first groove 401.

[0147] For example, see Fig.15 The overlapping portion 73 of the extension portion 72 without the first filling portion 722 can be located on the side of the overlapping portion 73 of the extension portion 72 with the first filling portion 722 that is away from the substrate 10, which can protect the extension portion 72 with the first filling portion 722 and further increase the reliability of the extension portion 72 with the first filling portion 722.

[0148] For example, see Fig.16 The overlapping portion 73 of the extension portion 72 with the first filling portion 722 can be located on the side of the overlapping portion 73 of the extension portion 72 without the first filling portion 722 that is away from the substrate 10, which can protect the extension portion 72 without the first filling portion 722 and increase the reliability of the extension portion 72 without the first filling portion 722.

[0149] For example, see Fig.17 and Fig.18 The overlapping portion 73 of one of the two adjacent extension portions 72 having the first filling portion 722 may be located on the side of the other overlapping portion 73 away from the substrate 10 , which may protect the other extension portion 72 and further increase the reliability of the other extension portion 72 .

[0150] It can be understood that two adjacent extension portions 72 having the first filling portion 722 may correspond to light emitting units emitting light of different colors.

[0151] Please also read Fig.19 , Fig. 20 and Fig.21 In some embodiments, a second groove 402 communicating with the isolation opening 403 is formed on a side wall of the isolation structure 40 facing the isolation opening 403 .

[0152] It can be understood that the display panel 100 provided in the embodiment of the present application is provided with a second groove 402 connected to the isolation opening 403 on the side wall of the isolation structure 40 facing the isolation opening 403. When preparing the first encapsulation layer 70, the portion of the first encapsulation layer 70 connected to the side wall of the isolation structure 40 facing the isolation opening 403 can fill at least a portion of the second groove 402. In this way, the path for water, oxygen or liquid medicine to intrude into the light-emitting unit through the connection seam between the first encapsulation layer 70 and the isolation structure 40 can be increased, and the difficulty of water, oxygen or liquid medicine intruding into the light-emitting unit can be increased, thereby avoiding water, oxygen or liquid medicine from intruding into the light-emitting unit to a certain extent, and improving the encapsulation reliability of the first encapsulation layer 70.

[0153] Optionally, the second groove 402 is disposed around the isolation opening 403. Correspondingly, when preparing the first encapsulation layer 70, the portion of the first encapsulation layer 70 filling the second groove 402 may be disposed around the isolation opening 403, which may improve the encapsulation reliability of the first encapsulation layer 70.

[0154] Please also read Fig. 20 and Fig.21 In some embodiments, the isolation structure 40 includes a first support portion 44, a first eave portion 45, a second support portion 46, and a second eave portion 47 which are stacked in sequence in a direction away from the substrate 10, and the first groove 401 is at least provided in the second eave portion 47. In this way, the first groove 401 can be formed by etching the second eave portion 47. It can be understood that the orthographic projections of the first support portion 44, the first eave portion 45, and the second support portion 46 on the substrate 10 are located within the orthographic projection of the second eave portion 47 on the substrate 10. Among them, the orthographic projection of the first support portion 44 on the substrate 10 is located within the orthographic projection of the first eave portion 45 on the substrate 10.

[0155] Optionally, the orthographic projection of the first eave portion 45 on the substrate 10 is located within the orthographic projection range of the second eave portion 47 on the substrate 10 .

[0156] The isolation structure 40 also includes a base portion 41, the orthographic projection of the base portion 41 on the substrate 10 is located within the orthographic projection of the second eaves portion 47 on the substrate 10, the orthographic projection of the base portion 41 on the substrate 10 is located within the orthographic projection of the first eaves portion 45 on the substrate 10, and the orthographic projections of the first support portion 44 and the second support portion 46 on the substrate 10 are located within the orthographic projection of the base portion 41 on the substrate 10.

[0157] Exemplarily, the orthographic projection of the first eave portion 45 on the substrate 10 coincides with the orthographic projection of the second eave portion 47 on the substrate 10 .

[0158] Optionally, the orthographic projection of the first groove 401 on the substrate 10 is located within the orthographic projection of the second support portion 46 on the side facing away from the substrate 10. In this way, when the thickness of the second eaves portion 47 is small, the second support portion 46 can support the portion of the second eaves portion 47 provided with the first groove 401, and the first groove 401 has little influence on the eaves portion 43.

[0159] Exemplarily, the first groove 401 may be provided only in the second eaves portion 47 to reduce the depth of the first groove 401 and reduce the influence of the first groove 401 on the isolation structure 40 .

[0160] Exemplarily, the first groove 401 passes through the second eaves portion 47 and extends into the second support portion 46. In this way, compared with the second eaves portion 47, the second support portion 46 has a larger thickness, so that the first groove 401 has a certain depth, and the first packaging layer 70 can fill a larger volume of the first groove 401, which can increase the bonding force between the first packaging layer 70 and the isolation structure 40, thereby facilitating the improvement of reliability.

[0161] Exemplarily, the first groove 401 includes a groove bottom and a groove opening, wherein the groove bottom is arranged on a side of the second support portion 46 facing away from the substrate 10 , and the groove opening is arranged on the second eaves portion 47 and communicates with the groove bottom.

[0162] Exemplarily, the orthographic projection of the notch on the substrate 10 is located within the orthographic projection of the groove bottom on the substrate 10. In this way, the area of ​​the groove bottom is larger than the area of ​​the notch, so that the first encapsulation layer 70 entering the groove bottom and the first groove 401 can generate abutment force, thereby improving the connection strength between the first encapsulation layer 70 and the isolation structure 40, making it difficult for the first encapsulation layer 70 entering the groove bottom to exit, thereby facilitating reliability improvement.

[0163] Please also read Fig.19 , Fig. 20 and Fig.21 In some embodiments, a second groove 402 communicating with the isolation opening 403 is formed between the first eaves portion 45 and the second eaves portion 47. It can be understood that the orthographic projection of the second support portion 46 on the substrate 10 is located within the orthographic projection of any one of the first eaves portion 45 and the second eaves portion 47 on the substrate 10, and the orthographic projection area of ​​the second support portion 46 on the substrate 10 is smaller than the orthographic projection area of ​​any one of the first eaves portion 45 and the second eaves portion 47 on the substrate 10. In this way, the second groove 402 can be naturally formed when preparing the isolation opening 403, which can simplify the manufacturing process and help reduce costs.

[0164] Optionally, the second groove 402 is arranged around the isolation opening 403. That is, the orthographic projection of the second groove 402 on the substrate 10 is arranged around the orthographic projection of the isolation opening 403 on the substrate 10. In this way, the orthographic projection of the portion of the first encapsulation layer 70 filling the second groove 402 on the substrate 10 is arranged around the orthographic projection of the isolation opening 403 on the substrate 10, and the portion of the first encapsulation layer 70 filling the first groove 401 can increase the path for water, oxygen or liquid intrusion at various positions in the direction around the isolation opening 403, which can further improve the packaging reliability of the first encapsulation layer 70.

[0165] In some embodiments, the thickness of the second support portion 46 is d1, the thickness of the second eaves portion 47 is d2, and 200nm≤d1+d2≤500nm. The value of d1+d2 can be: 200nm, 210nm, 220nm, 230nm, 240nm, 250nm, 260nm, 270nm, 280nm, 290nm, 300nm, 310nm, 320nm, 330nm, 340nm, 350nm, 360nm, 370nm, 380nm, 390nm, 400nm, 410nm, 420nm, 430nm, 440nm, 450nm, 460nm, 470nm, 480nm, 490nm, 500nm, etc.

[0166] Optionally, 100 nm ≤ d1 ≤ 200 nm. Exemplarily, the value of d1 may be: 100 nm, 110 nm, 120 nm, 130 nm, 140 nm, 150 nm, 160 nm, 170 nm, 180 nm, 190 nm, 200 nm, etc.

[0167] Optionally, 100nm≤d2≤300nm. Exemplarily, the value of d2 may be: 100nm, 110nm, 120nm, 130nm, 140nm, 150nm, 160nm, 170nm, 180nm, 190nm, 200nm, 210nm, 220nm, 230nm, 240nm, 250nm, 260nm, 270nm, 280nm, 290nm, 300nm, etc.

[0168] Exemplarily, the first encapsulation layer 70 includes a plurality of encapsulation parts, the encapsulation part includes an encapsulation body 71, the orthographic projection of the encapsulation body 71 on the substrate 10 is located within the orthographic projection of the isolation opening 403 on the substrate 10, at least part of the orthographic projection of the light-emitting unit on the substrate 10 is located within the orthographic projection of the encapsulation body 71 on the substrate 10, part of the encapsulation body 71 is connected to the side wall of the isolation structure 40 facing the isolation opening 403, and fills at least part of the second groove 402. It can be understood that the encapsulation part can also include an extension part 72, the extension part 72 is connected to the edge of the encapsulation body 71, and the extension part 72, when including the first extension part 72, can increase the encapsulation reliability of the encapsulation part together with the encapsulation body 71.

[0169] In some embodiments, the display panel 100 provided in the embodiment of the present application may also include a second encapsulation layer (not shown in the figure) and a third encapsulation layer (not shown in the figure), 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.

[0170] Optionally, the first encapsulation layer 70 may be an inorganic encapsulation layer formed by chemical vapor deposition (CVD) and patterning.

[0171] Optionally, the second encapsulation layer may be made by ink jet printing (Ink Jet Print DAM, IJP).

[0172] Optionally, the third encapsulation layer may be an inorganic encapsulation layer formed by chemical vapor deposition (CVD).

[0173] Optionally, the display panel 100 provided in the embodiment of the present application may further include other film layers, and the other film layers are located on the side of the third encapsulation layer away from the substrate 10. The other film layers may include polarizing films, optically clear adhesives (OCA), and the like.

[0174] Please continue reading Fig.19 , Fig. 20 and Fig.21 The embodiment of the present application provides another display panel 100. The display panel 100 provided in the embodiment of the present application is different from the above embodiment in that the isolation structure 40 defines an isolation opening 403, and the side wall of the isolation structure 40 facing the isolation opening 403 is provided with a second groove 402 connected to the isolation opening 403. The orthographic projection of at least part of the light-emitting unit on the substrate 10 is located within the orthographic projection of the corresponding isolation opening 403 on the substrate 10, the first encapsulation layer 70 is located on the side of the light-emitting unit away from the substrate 10, and part of the first encapsulation layer 70 is connected to the side wall of the isolation structure 40 facing the isolation opening 403, and fills at least part of the second groove 402.

[0175] Through the above technical scheme, the display panel 100 provided in the embodiment of the present application is provided with a second groove 402 connected to the isolation opening 403 on the side wall of the isolation structure 40 facing the isolation opening 403, and the part of the first encapsulation layer 70 connected to the side wall of the isolation structure 40 facing the isolation opening 403 fills at least a part of the second groove 402. The part of the first encapsulation layer 70 filled in the second groove 402 can increase the path for water and oxygen to invade the light-emitting unit through the connection seam between the first encapsulation layer 70 and the isolation structure 40, increase the difficulty of water and oxygen invading the light-emitting unit, and thus avoid water and oxygen invading the light-emitting unit to a certain extent, thereby improving the encapsulation reliability of the first encapsulation layer 70.

[0176] Therefore, the display panel 100 provided in the present application can improve packaging reliability, thereby improving the performance of the display device.

[0177] In some embodiments, the first encapsulation layer 70 includes multiple encapsulation parts, the encapsulation part includes a encapsulation body 71, the orthographic projection of the encapsulation body 71 on the substrate 10 is located within the orthographic projection of the isolation opening 403 on the substrate 10, the orthographic projection of the light-emitting unit on the substrate 10 is located within the orthographic projection of the encapsulation body 71 on the substrate 10, and the encapsulation body 71 includes a second filling part 711, and the second filling part 711 fills at least a portion of the second groove 402.

[0178] It can be understood that the packaging part can also include an extension portion 72, which is connected to the edge of the packaging body 71. When the extension portion 72 includes a first extension portion 72 and the packaging body 71 includes a second filling portion 711, the extension portion 72 can jointly increase the packaging reliability of the packaging part with the packaging body 71.

[0179] 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.

[0180] 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.

[0181] 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: The display panel comprises: substrate; An isolation structure, located on one side of the substrate along the thickness direction, the isolation structure defines a plurality of isolation openings, and a side of the isolation structure facing away from the substrate is provided with at least one first groove; A plurality of light-emitting units, wherein the orthographic projections of the light-emitting units on the substrate are located within the orthographic projections of the corresponding isolation openings on the substrate; A first encapsulation layer, wherein the first encapsulation layer is located on a side of the light emitting unit away from the substrate, a portion of the first encapsulation layer is located on a side of the isolation structure away from the substrate, and fills at least a portion of the first groove.

2. The display panel according to claim 1, wherein: The isolation structure comprises a support portion and an eave portion which are sequentially stacked in a direction away from the substrate, and the first groove is at least arranged in the eave portion; Preferably, the orthographic projection of the first groove on the substrate is located within the orthographic projection of the substrate on a side of the support portion facing away from the substrate; Preferably, the first groove passes through the eaves portion and extends into the supporting portion; Preferably, the first groove comprises a groove bottom and a groove opening, the groove bottom is arranged on a side of the support portion facing away from the substrate, and the groove opening is arranged on the eaves portion and communicates with the groove bottom; Preferably, the orthographic projection of the notch on the substrate is located within the orthographic projection of the groove bottom on the substrate; Preferably, along a direction perpendicular to the substrate, a side of the first encapsulation layer in the first groove facing away from the substrate is not lower than a side of the eaves portion facing away from the substrate.

3. The display panel according to claim 1, wherein: The orthographic projection of the first groove on the substrate is located on at least one side of the isolation opening; Preferably, the orthographic projection of the first groove on the substrate is arranged around at least a portion of the orthographic projection of the isolation opening on the substrate; Preferably, the first groove comprises at least two groove sub-segments, adjacent groove sub-segments are arranged at intervals, and the at least two groove sub-segments are arranged on different sides of the isolation opening, wherein the orthographic projection of the groove sub-segments on the substrate is located between the orthographic projections of adjacent isolation openings on the substrate; Preferably, the first encapsulation layer comprises a plurality of encapsulation parts, the orthographic projection of the isolation opening on the substrate is located within the orthographic projection of the corresponding encapsulation part on the substrate, the encapsulation part covers the corresponding light-emitting unit, and adjacent encapsulation parts fill different groove sub-segments; Preferably, the first groove is arranged around one of the two adjacent isolation openings, and the first encapsulation layer corresponding to one of the two adjacent isolation openings fills a first groove section of the first groove, and the first encapsulation layer corresponding to the other of the two adjacent isolation openings fills a second groove section of the first groove; Preferably, there are a plurality of the first grooves, and the plurality of the first grooves are arranged at intervals in a direction close to or away from the isolation opening; Preferably, there are a plurality of first grooves, each of which is arranged corresponding to the isolation opening, and the first packaging layer fills the first groove.

4. The display panel according to claim 1, wherein: The depth of the first groove is h, and the value range of h is: 50nm≤h≤500nm; Preferably, the value range of h is: 200nm≤h≤500nm.

5. The display panel according to claim 1, wherein: The first encapsulation layer comprises a plurality of encapsulation parts, wherein the encapsulation parts comprise an encapsulation body and an extension part, wherein the encapsulation body is located in the isolation opening, the orthographic projection of the light emitting unit on the substrate is located in the orthographic projection of the encapsulation body on the substrate, the extension part is located on a side of the isolation structure away from the substrate, the extension part is connected to an edge of the encapsulation body, and the extension part of at least one of the encapsulation parts comprises a first filling part, wherein the first filling part fills at least a portion of the first groove; Preferably, the orthographic projection of the first groove on the substrate is located within the orthographic projection of the corresponding extension portion on the substrate.

6. The display panel according to claim 5, wherein: Each of the extending portions includes at least one first filling portion, and each of the first filling portions fills at least a portion of one of the first grooves.

7. The display panel according to claim 6, wherein: The extension portion further comprises a first connection portion, wherein an end of the first connection portion close to the package body is connected to an edge of the package body, and an end of the first connection portion away from the package body is connected to the first filling portion, the light emitting unit comprises a main body portion, a first residual portion, and a second residual portion, the main body portion is located in the isolation opening, and the orthographic projection of the main body portion on the substrate is located in the orthographic projection of the package body on the substrate, the orthographic projection of the first residual portion on the substrate is located in the orthographic projection of the first connection portion on the substrate, and the orthographic projection of the second residual portion on the substrate is located in the orthographic projection of the first filling portion on the substrate; Preferably, at least one of the extension portions includes a plurality of the first filling portions, and the extension portion further includes a second connecting portion, wherein the second connecting portion is located on a side of the first connecting portion away from the packaging body, an end of the second connecting portion close to the packaging body is connected to one of two adjacent first filling portions of the same extension portion, and an end of the second connecting portion away from the packaging body is connected to the other of two adjacent first filling portions of the same extension portion, and the light-emitting unit further includes a third residual portion, and the orthographic projection of the third residual portion on the substrate is located within the orthographic projection of the second connecting portion on the substrate.

8. The display panel according to claim 5, wherein: Every two adjacent extension portions of the encapsulation portions are spaced apart on a side of the isolation structure away from the substrate; Alternatively, the orthographic projections of at least two adjacent packaging parts on the substrate overlap; preferably, the orthographic projection of the first groove on the substrate surrounds the orthographic projection of one of the isolation openings on the substrate, and the orthographic projection of the first groove on the substrate is located within the orthographic projection range of the extension parts of the two adjacent packaging parts on the substrate; Preferably, the first groove is arranged corresponding to the isolation opening, and the orthographic projection of the first groove on the substrate surrounds the orthographic projection of the corresponding isolation opening on the substrate, and the orthographic projection of the first groove on the substrate is located within the orthographic projection range of any one of the packaging parts on the substrate; Preferably, a portion where at least two adjacent encapsulation parts overlap in an orthographic projection of the substrate is located within the orthographic projection of the isolation structure on the substrate; Preferably, at least two adjacent packaging parts cover the orthographic projection of the first groove on the substrate at a portion where the orthographic projections of the at least two adjacent packaging parts on the substrate overlap.

9. The display panel according to claim 1, wherein: The side wall of the isolation structure facing the isolation opening is provided with a second groove communicating with the isolation opening; Preferably, the second groove is arranged around the isolation opening.

10. The display panel according to claim 1, wherein: The isolation structure comprises a base portion, a first support portion, a first eave portion, a second support portion, and a second eave portion which are sequentially stacked in a direction away from the substrate, and the first groove is at least provided in the second eave portion; Preferably, the orthographic projection of the first groove on the substrate is located within the orthographic projection of the substrate on a side of the second supporting portion facing away from the substrate; Preferably, the first groove passes through the second eaves portion and extends into the second supporting portion; Preferably, the first groove comprises a groove bottom and a groove opening, the groove bottom is arranged on a side of the second supporting portion away from the substrate, and the groove opening is arranged on the second eaves portion and communicates with the groove bottom; Preferably, the orthographic projection of the notch on the substrate is located within the orthographic projection of the groove bottom on the substrate; Preferably, the orthographic projection of the first eaves portion on the substrate is located within the orthographic projection range of the second eaves portion on the substrate.

11. The display panel according to claim 10, wherein: A second groove communicating with the isolation opening is formed between the first eaves portion and the second eaves portion; Preferably, the second groove is arranged around the isolation opening.

12. The display panel according to claim 10, wherein: The thickness of the second supporting portion is d1, the thickness of the second eaves portion is d2, 200nm≤d1+d2≤500nm; Preferably, 100nm≤d1≤200nm; Preferably, 100nm≤d2≤300nm.

13. The display panel according to claim 9 or 11, characterized in that: The first encapsulation layer includes a plurality of encapsulation parts, the encapsulation parts include an encapsulation body, the orthographic projection of the encapsulation body on the substrate is located within the orthographic projection of the isolation opening on the substrate, at least a portion of the orthographic projection of the light-emitting unit on the substrate is located within the orthographic projection of the encapsulation body on the substrate, a portion of the encapsulation body is connected to the side wall of the isolation structure toward the isolation opening, and fills at least a portion of the second groove.

14. A display panel, characterized in that: include: substrate; An isolation structure is located on one side of the substrate along the thickness direction, the isolation structure defines an isolation opening, and a side wall of the isolation structure facing the isolation opening is provided with a second groove communicating with the isolation opening; A plurality of light-emitting units, wherein the orthographic projections of the light-emitting units on the substrate are located within the orthographic projections of the corresponding isolation openings on the substrate; A first encapsulation layer is located at a side of the light emitting unit away from the substrate, a portion of the first encapsulation layer is connected to a side wall of the isolation structure facing the isolation opening, and fills at least a portion of the second groove.

15. The display panel according to claim 14, wherein: The isolation structure includes a first support portion, a first eave portion, a second support portion, and a second eave portion which are sequentially stacked in a direction away from the substrate, and the second groove is formed between the first eave portion and the second eave portion.

16. The display panel according to claim 15, wherein: The thickness of the second supporting portion is d1, the thickness of the second eaves portion is d2, 200nm≤d1+d2≤500nm; Preferably, 100nm≤d1≤200nm; Preferably, 100nm≤d2≤300nm.

17. The display panel according to claim 15, wherein: At least one first groove is provided on a side of the isolation structure facing away from the substrate, and a portion of the first encapsulation layer is located on the side of the isolation structure facing away from the substrate and fills at least a portion of the first groove; Preferably, the first groove is provided at least in the second eaves portion; Preferably, the first groove passes through the second eaves portion and extends into the second supporting portion; Preferably, the first groove comprises a groove bottom and a groove opening, the groove bottom is arranged on a side of the second supporting portion away from the substrate, and the groove opening is arranged on the second eaves portion and communicates with the groove bottom; Preferably, the orthographic projection of the notch on the substrate is located within the orthographic projection of the groove bottom on the substrate; Preferably, along a direction perpendicular to the substrate, a side of the first encapsulation layer in the first groove facing away from the substrate is not lower than a side of the eaves portion facing away from the substrate.

18. The display panel according to claim 17, wherein: The depth of the first groove is h, and the value range of h is: 50nm≤h≤500nm; Preferably, the value range of h is: 200nm≤h≤500nm.

19. The display panel according to claim 14, wherein: The first encapsulation layer includes a plurality of encapsulation parts, the encapsulation parts include an encapsulation body, the orthographic projection of the encapsulation body on the substrate is located within the orthographic projection of the isolation opening on the substrate, the orthographic projection of the light-emitting unit on the substrate is located within the orthographic projection of the encapsulation body on the substrate, and the encapsulation body includes a second filling part, and the second filling part fills at least a portion of the second groove.

20. A display device, characterized in that: A display panel comprising any one of claims 1 to 19.

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