Display panel, preparation method and display device

Abstract

The invention relates to a display panel, a preparation method and a display device. The display panel comprises a substrate and an isolation structure. The isolation structure is arranged on one side of the substrate, and a plurality of isolation openings are defined by the isolation structure; the isolation structure comprises a first isolation part and a second isolation part, the first isolation part is arranged on the side, close to the substrate, of the second isolation part, and the orthographic projection of the first isolation part on the substrate is located in the orthographic projection of the second isolation part on the substrate; a pit is formed between at least part of adjacent isolation openings, and the pit is formed in the surface of the side, away from the substrate, of the second isolation part; the orthographic projection of the pit on the substrate is located in the orthographic projection of the second isolation part on the substrate, and a distance is formed between the edge, close to one side of the isolation opening, of the pit and the edge, close to one side of the isolation opening, of the second isolation part. The display effect and the service life of the display panel can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a display panel, a preparation method and a display device. BACKGROUND

[0002] Organic Light Emitting Diode (OLED) display panel is widely used due to its advantages such as thinness, active light-emitting, fast response speed, wide viewing angle, rich color, high brightness, low power consumption, high and low temperature resistance and the like. However, the display effect of the display panel needs to be improved. SUMMARY

[0003] Therefore, it is necessary to provide a display panel, a preparation method and a display device to solve the above technical problems.

[0004] In a first aspect, an embodiment of the present application provides a display panel, comprising:

[0005] a substrate;

[0006] an isolation structure arranged on one side of the substrate, the isolation structure enclosing a plurality of isolated openings; the isolation structure comprises a first isolation portion and a second isolation portion, the first isolation portion is arranged on the side of the second isolation portion close to the substrate, and the orthographic projection of the first isolation portion on the substrate is located in the orthographic projection of the second isolation portion on the substrate;

[0007] at least part of the adjacent isolated openings are provided with a recess, and the recess is arranged on the surface of the second isolation portion away from the substrate;

[0008] the orthographic projection of the recess on the substrate is located in the orthographic projection of the second isolation portion on the substrate, and the edge of the recess close to the side of the isolated opening has a spacing with the edge of the second isolation portion close to the side of the isolated opening.

[0009] In one of the embodiments, the recess is arranged between any adjacent isolated openings;

[0010] Optionally, the recess is arranged around the isolated opening;

[0011] Optionally, the first isolation portion comprises a first end close to the substrate and a second end away from the substrate, the orthographic projection of the second end on the substrate is located in the orthographic projection of the first end on the substrate, and the orthographic projection of the recess on the substrate is located in the orthographic projection of the second end on the substrate; or, the orthographic projection of the recess on the substrate coincides with the orthographic projection of the second end on the substrate.

[0012] In one of the embodiments, the second isolation portion comprises an isolation sub-portion, and the isolation sub-portion is arranged around the recess;

[0013] In the thickness direction of the display panel, the size of the recess is smaller than the size of the isolation sub-portion.

[0014] In one of the embodiments, the recess includes a first opening close to the substrate and a second opening away from the substrate; a projection of the first opening on the substrate is within a projection of the second opening on the substrate.

[0015] In one of the embodiments, the isolation sub includes a first isolation sub, a second isolation sub and a third isolation sub; the first isolation sub and the third isolation sub are arranged around the recess; the second isolation sub is between the first isolation sub and the third isolation sub and is arranged on a side of the recess close to the substrate.

[0016] Optionally, along the thickness of the display panel, the size of the first isolation sub is the same as the size of the third isolation sub, and the size of the second isolation sub is smaller than the size of the first isolation sub or the size of the third isolation sub.

[0017] In one of the embodiments, the isolation opening includes a first isolation sub opening enclosed by the first isolation sub and a second isolation sub opening enclosed by the second isolation sub.

[0018] A projection of the second isolation sub opening on the substrate is within a projection of the first isolation sub opening on the substrate.

[0019] Optionally, the material of the isolation structure is metal.

[0020] In one of the embodiments, the isolation structure further includes a third isolation sub arranged on a side of the first isolation sub close to the substrate.

[0021] A projection of the first isolation sub on the substrate is within a projection of the third isolation sub on the substrate.

[0022] Optionally, a projection of the recess on the substrate is within a projection of the third isolation sub on the substrate.

[0023] Optionally, the isolation opening further includes a third isolation sub opening enclosed by the third isolation sub; a projection of the third isolation sub opening on the substrate is within a projection of the first isolation sub opening on the substrate.

[0024] In one of the embodiments, the plurality of isolation openings includes a plurality of first isolation openings and a plurality of second isolation openings; a recess is arranged between adjacent first isolation openings and second isolation openings.

[0025] The display panel further includes a plurality of first light emitting devices arranged in at least part of the first isolation openings and a plurality of second light emitting devices arranged in at least part of the second isolation openings; the first light emitting devices and the second light emitting devices are respectively used for emitting light of different colors.

[0026] The plurality of first encapsulation portions correspond one-to-one to the plurality of first light emitting devices, and the plurality of second encapsulation portions correspond one-to-one to the plurality of second light emitting devices.

[0027] In one of the embodiments, the first encapsulation portion comprises a first main portion and a first sub-portion connected to the first main portion, the first main portion covers the sidewall of the isolation structure corresponding to the first light emitting device and the first isolation opening, and the first sub-portion is arranged on the side of the isolation structure away from the substrate.

[0028] Optionally, the first sub-portion is spaced apart from the surface of the side of the isolation structure away from the substrate.

[0029] Optionally, the second encapsulation portion comprises a second main portion and a second sub-portion connected to the second main portion, the second main portion covers the sidewall of the isolation structure corresponding to the second light emitting device and the second isolation opening, and the second sub-portion is arranged on the side of the isolation structure away from the substrate.

[0030] Optionally, the second sub-portion is spaced apart from the surface of the side of the isolation structure away from the substrate.

[0031] In one of the embodiments, in the adjacent first encapsulation portion and second encapsulation portion, the orthographic projection of the first sub-portion on the substrate and the orthographic projection of the second sub-portion on the substrate intersect and overlap.

[0032] Optionally, the corresponding intersecting and overlapping orthographic projections of the first sub-portion and the second sub-portion on the substrate are located within the orthographic projection of the recess on the substrate.

[0033] Optionally, in the adjacent first encapsulation portion and second encapsulation portion, the first sub-portion and the second sub-portion are arranged in a spaced apart manner.

[0034] Optionally, in the adjacent first encapsulation portion and second encapsulation portion, part of the second sub-portion is located on the side of part of the first sub-portion away from the substrate.

[0035] In one of the embodiments, the plurality of isolation openings further comprises a plurality of third isolation openings; a recess is arranged between the adjacent second isolation opening and the third isolation opening.

[0036] The display panel further comprises: a plurality of third light emitting devices arranged in at least part of the third isolation openings, the third light emitting devices being different from the first light emitting devices and the second light emitting devices in the color of the light emitted.

[0037] The plurality of third encapsulation portions correspond one-to-one to the plurality of third light emitting devices.

[0038] In one of the embodiments, the third encapsulation portion comprises a third main portion and a third sub-portion connected to the third main portion, the third main portion covers the sidewall of the isolation structure corresponding to the third light emitting device and the third isolation opening, and the third sub-portion is arranged on the side of the isolation structure away from the substrate.

[0039] Optionally, the third sub-portion is spaced apart from the surface of the isolation structure on the side facing away from the substrate.

[0040] In one of the embodiments, the second encapsulation portion further comprises a fourth sub-portion connected to the second main portion, the fourth sub-portion is arranged on the side of the isolation structure facing away from the substrate.

[0041] Optionally, the fourth sub-portion is spaced apart from the surface of the isolation structure on the side facing away from the substrate.

[0042] Optionally, in the adjacent second encapsulation portion and third encapsulation portion, the third sub-portion and the fourth sub-portion are arranged in an overlapping manner.

[0043] Optionally, the corresponding overlapping projections of the third sub-portion and the fourth sub-portion on the substrate are located within the projection of the recess on the substrate.

[0044] Optionally, in the adjacent second encapsulation portion and third encapsulation portion, the third sub-portion and the fourth sub-portion are arranged in a spaced apart manner.

[0045] Optionally, in the adjacent second encapsulation portion and third encapsulation portion, part of the third sub-portion is located on the side of part of the fourth sub-portion facing away from the substrate.

[0046] In one of the embodiments, the first light emitting device, the second light emitting device, and the third light emitting device in the display panel each comprise a first electrode, a light emitting functional portion, and a second electrode arranged in a stacked manner on the side facing away from the substrate.

[0047] In one of the embodiments, the display panel further comprises a pixel defining layer arranged on the side of the isolation structure close to the substrate.

[0048] The pixel defining layer encloses a plurality of pixel openings; the first light emitting device, the second light emitting device, and the third light emitting device are at least partially arranged in the corresponding pixel openings.

[0049] In a second aspect, one of the embodiments of the present application provides a display panel, comprising:

[0050] a substrate;

[0051] an isolation structure arranged on one side of the substrate, the isolation structure encloses a plurality of isolation openings; the isolation structure comprises a first isolation portion and a second isolation portion, the first isolation portion is arranged on the side of the second isolation portion close to the substrate, and the projection of the first isolation portion on the substrate is located within the projection of the second isolation portion on the substrate;

[0052] at least part of the adjacent isolation openings are provided with a recess, the recess is arranged on the surface of the second isolation portion on the side facing away from the substrate,

[0053] The second isolation portion includes an isolation sub-portion, and a size of the isolation sub-portion is greater than a size of the recess along a thickness direction of the display panel, and the isolation sub-portion is arranged around the recess.

[0054] In one of the embodiments, the isolation portion includes a first isolation sub-portion, a second isolation sub-portion, and a third isolation sub-portion, the first isolation sub-portion and the third isolation sub-portion are arranged around the recess, the second isolation sub-portion is located between the first isolation sub-portion and the third isolation sub-portion, and is arranged on a side of the recess close to the substrate.

[0055] Optionally, along the thickness direction of the display panel, a size of the first isolation sub-portion is the same as a size of the third isolation sub-portion, and a size of the second isolation sub-portion is smaller than the size of the first isolation sub-portion or the size of the third isolation sub-portion.

[0056] In one of the embodiments, the recess includes a first opening close to the substrate and a second opening away from the substrate, and a normal projection of the first opening on the substrate is located within a normal projection of the second opening on the substrate.

[0057] In a third aspect, an embodiment of the present application provides a display panel manufacturing method, which includes:

[0058] forming a separation structure material layer on one side of the substrate; the separation structure material layer includes a first separation material layer and a second separation material layer;

[0059] performing first patterning processing on the second separation material layer to form a recess on the second separation material layer;

[0060] performing second patterning processing on the separation structure material layer to form a separation structure on the separation structure material layer; the separation structure is surrounded to form a plurality of separation openings, and at least part of adjacent separation openings are provided with the recess;

[0061] The separation structure includes a first isolation portion formed by the first separation material layer and a second isolation portion formed by the second separation material layer, the first isolation portion is arranged on a side of the second isolation portion close to the substrate, a normal projection of the first isolation portion on the substrate is located within a normal projection of the second isolation portion on the substrate; the recess is arranged on a side surface of the second isolation portion away from the substrate, a normal projection of the recess on the substrate is located within a normal projection of the second isolation portion on the substrate, and an edge of the recess close to the separation opening has a spacing with an edge of the second isolation portion close to the separation opening.

[0062] In a fourth aspect, an embodiment of the present application further provides a display device, which includes the display panel provided in the first aspect and the second aspect.

[0063] The display panel, the preparation method and the display device are provided, and the display panel is configured by setting a recess between at least part of adjacent isolation openings, the recess is arranged on a side surface of the second isolation portion away from the substrate, a projection of the recess on the substrate is located in a projection of the second isolation portion on the substrate, and an edge of the recess close to the isolation opening has a spacing with an edge of the second isolation portion close to the isolation opening. In this way, the thickness of the overhanging part of the top layer (the second isolation portion) of the isolation structure is greater than the thickness of the corresponding second isolation portion of the recess, so that the overhanging part of the second isolation portion is not prone to warping, and the etching solution or the stripping solution in the preparation process of the display panel can be prevented from eroding the side wall of the isolation structure and the light emitting device, the light emitting device is prevented from being invalid, and thus the display effect and the service life of the display panel can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0064] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0065] Figure 1 A cross-sectional structure schematic diagram of a display panel provided for an embodiment is shown in the figure;

[0066] Figure 2 A cross-sectional structure schematic diagram of a display panel provided for another embodiment is shown in the figure;

[0067] Figure 3 A cross-sectional structure schematic diagram of a display panel provided for another embodiment is shown in the figure;

[0068] Figure 4 A planar distribution schematic diagram of an isolation structure provided for an embodiment is shown in the figure;

[0069] Figure 5 A cross-sectional structure schematic diagram of a display panel provided for another embodiment is shown in the figure;

[0070] Figure 6 A cross-sectional structure schematic diagram of a display panel provided for another embodiment is shown in the figure;

[0071] Figure 7 A cross-sectional structure schematic diagram of a display panel provided for another embodiment is shown in the figure;

[0072] Figure 8 A cross-sectional structure schematic diagram of a display panel provided for another embodiment is shown in the figure;

[0073] Figure 9A flow chart of a method for manufacturing a display panel is provided for one embodiment.

[0074] Figure 10 A flow chart of a method for manufacturing a display panel is provided for another embodiment.

[0075] Figure 11 A flow chart of a method for manufacturing a display panel is provided for another embodiment.

[0076] Figure 12 A flow chart of a method for manufacturing a display panel is provided for another embodiment.

[0077] Figures 13-16 A flow chart of a method for manufacturing a display panel is provided for another embodiment. Figure 12 A cross-sectional structure of a display panel during the manufacturing process is shown.

[0078] Explanation of reference numerals:

[0079] 1, pixel defining material layer; 2, second isolation material layer; 10, display panel; 11, substrate; 12, isolation structure; 121, first isolation part; 121a, first end; 121b, second end; 122, second isolation part; 1221, isolation subpart; 1221a, first surface; 1221b, second surface; 1221c, first isolation subpart; 1221d, second isolation subpart; 1221e, third isolation subpart; 123, third isolation part; 13, isolation opening; 131, recess; 131a, first opening; 131b, second opening; 132, first isolation subopening; 133, second isolation subopening; 134, third isolation subopening; 135, first isolation opening; 136, second isolation opening; 137, third isolation opening; 141, first light emitting device; 142, second light emitting device; 143, third light emitting device; 144, first electrode; 145, light emitting functional part; 146, second electrode; 151, first encapsulation part; 1511, first main part; 1511a, first portion; 1511b, second portion; 1512, first subpart; 152, second encapsulation part; 1521, second main part; 1521a, third portion; 1521b, fourth portion; 1522, second subpart; 1523, fourth subpart; 153, third encapsulation part; 1531, third main part; 1531a, fifth portion; 1531b, sixth portion; 1532, third subpart; 16, pixel defining layer; 161, pixel opening. DETAILED DESCRIPTION

[0080] For the purposes of the present application, a more complete understanding can be obtained by reference to the following description taken in connection with the accompanying drawings. The drawings are intended to illustrate preferred embodiments of the present application and therefore are not to be construed as being limited in scope by the illustrative embodiments. Rather, the drawings are intended to be illustrative of the disclosure of the present application.

[0081] It should be understood that, although the terms "first", "second", etc. can be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present application. The terms "comprising", "including", "containing", etc. shall be construed as containing the elements listed after such terms as well as any other elements.

[0082] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0083] Furthermore, in the specification, the phrase "plan view schematic diagram" refers to a drawing when the target portion is viewed from above, and the phrase "cross-sectional schematic diagram" or "cross-sectional structure schematic diagram" refers to a drawing when a section is taken by cutting the target portion vertically and the section is viewed from the side.

[0084] Furthermore, the drawings are not drawn to scale 1:1, and the relative sizes of the elements are only drawn by way of example in the drawings, and are not necessarily drawn in true scale.

[0085] Organic Light Emitting Diode (OLED) display panels are widely used due to their lightness, active light-emitting, fast response speed, wide viewing angle, rich color and high brightness, low power consumption, high and low temperature resistance, and many other advantages.

[0086] The structure of the display panel is as shown in Figure 1As shown, the light emitting devices in the display panel that can emit light rays of different colors are independently packaged. In the process of implementing the present application, the inventors found that the related art has the following problems: in the actual tape-out production process, the top layer of the isolation structure is prone to warping, which makes the bonding between the packaging layer and the suspended area below the top layer of the isolation structure poor or non-existent. In the subsequent wet process, the etching solution will invade from the gap between the packaging layer and the top layer of the isolation structure, which will cause etching to the sidewall of the isolation structure, resulting in poor cathode lapping effect in the display panel; and if the solution further invades along the sidewall of the isolation structure to the light emitting device, it will cause dark spots, affecting the display effect of the display panel. Figure 1 The path indicated by the arrow is the path of the etching solution invasion.

[0087] To this end, the present application provides a display panel and a preparation method and a display device. The display panel is provided with a recess between at least part of the adjacent isolation openings, the recess is arranged on the side surface of the second isolation portion away from the substrate; and the orthographic projection of the recess on the substrate is located within the orthographic projection of the second isolation portion on the substrate, and the edge of the recess close to the isolation opening has a spacing with the edge of the second isolation portion close to the isolation opening. In this way, the thickness of the suspended part of the top layer (second isolation portion) of the isolation structure is greater than the thickness of the corresponding second isolation portion of the recess, which makes the suspended part of the second isolation portion not prone to warping, preventing the etching solution or the stripping solution from eroding the sidewall of the isolation structure and the light emitting device, avoiding the failure of the light emitting device, thereby improving the display effect and service life of the display panel.

[0088] The composition, preparation, etc. of the isolation structure mentioned below are further described in 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, CN117500332A for reference.

[0089] Please refer to Figure 2An embodiment of the present application provides a display panel 10, which comprises a substrate 11 and an isolation structure 12 arranged on one side of the substrate 11. The isolation structure 12 encloses a plurality of isolation openings 13; the isolation structure 12 comprises a first isolation part 121 and a second isolation part 122, the first isolation part 121 is arranged on the side of the second isolation part 122 close to the substrate 11, and the orthographic projection of the first isolation part 121 on the substrate 11 is located in the orthographic projection of the second isolation part 122 on the substrate 11.

[0090] At least part of the adjacent isolation openings 13 are provided with a recess 131 arranged on the side surface of the second isolation part 122 away from the substrate 11.

[0091] The orthographic projection of the recess 131 on the substrate 11 is located in the orthographic projection of the second isolation part 122 on the substrate 11, and the edge of the recess 131 close to the isolation opening 13 has a spacing with the edge of the second isolation part 122 close to the isolation opening 13.

[0092] The substrate 11 can be a substrate of inorganic material, a substrate of organic material, or a composite substrate formed by laminating a substrate of inorganic material and a substrate of organic material. The material of the isolation structure 12 can be an organic insulating material or a metal material; the materials of the first isolation part 121 and the second isolation part 122 included in the isolation structure 12 can be the same or different. The present embodiment does not limit the specific structure and material of the substrate 11 and the isolation structure 12, as long as the functions thereof can be realized.

[0093] The first isolation part 121 is arranged on one side of the substrate 11, the second isolation part 122 is arranged on the side of the first isolation part 121 away from the substrate, and the recess 131 is arranged on the surface of the second isolation part 122 away from the substrate 11. That is, the isolation structure 12 is arranged between part of the adjacent isolation openings 13, the surface of the second isolation part 122 of the isolation structure 12 away from the substrate 11 is provided with the recess 131. The orthographic projection of the first isolation part 121 on the substrate 11 is located in the orthographic projection of the second isolation part 122 on the substrate 11, so that the second isolation part 122 has a suspended part. The orthographic projection of the recess 131 on the substrate 11 is located in the orthographic projection of the second isolation part 122 on the substrate 11, which means that the recess 131 is located in the middle part of the surface of the second isolation part 122 away from the substrate 11, so that the thickness of the middle part of the second isolation part 122 is smaller than the thickness of the suspended part of the second isolation part 122.

[0094] In the embodiment of the present application, the display panel 10 comprises a substrate 11 and an isolation structure 12, the isolation structure 12 is arranged on one side of the substrate 11, and the isolation structure 12 encloses a plurality of isolation openings 13; the isolation structure 12 comprises a first isolation part 121 and a second isolation part 122, the first isolation part 121 is arranged on the side of the second isolation part 122 close to the substrate 11, and the orthographic projection of the first isolation part 121 on the substrate 11 is located in the orthographic projection of the second isolation part 122 on the substrate 11; at least part of the isolation openings 13 adjacent to each other are provided with a pit 131, the pit 131 is provided with the side of the second isolation part 122 away from the substrate 11; the orthographic projection of the pit 131 on the substrate 11 is located in the orthographic projection of the second isolation part 122 on the substrate 11, and there is a spacing between the edge of the pit 131 close to the side of the isolation opening 13 and the edge of the second isolation part 122 close to the side of the isolation opening 13. In the embodiment, the second isolation part 122 has a suspended part, the pit 131 is located in the middle part of the side surface of the second isolation part 122 away from the substrate 11, so that the thickness of the middle region of the second isolation part 122 is smaller than the thickness of the suspended region of the second isolation part 122, so that the suspended part of the second isolation part 122 is not easy to warp, and the etching solution or the stripping solution in the preparation process of the display panel can be prevented from eroding the side wall of the isolation structure 12, so as to improve the display effect and the service life of the display panel 10. In addition, the etching solution or the stripping solution can also flow into the pit 131 preferentially, so as to reduce the solution that may enter the isolation structure 12, so as to improve the display effect and the service life of the display panel 10.

[0095] Please refer to Figure 3 In one embodiment, the pits 131 are arranged between any adjacent isolation openings 13.

[0096] That is to say, the isolation structure 12 encloses a plurality of isolation openings 13, and the side surface of the second isolation part 122 of the isolation structure 12 between any two adjacent isolation openings 13 in the plurality of isolation openings 13 is provided with a pit 131.

[0097] In the above embodiment, the pit 131 is arranged on the second isolation part 122 of the isolation structure 12 between any adjacent isolation openings 13, so that the suspended part of the second isolation part 122 of the isolation structure 12 between any adjacent isolation openings 13 is not easy to warp, so as to prevent the etching solution or the stripping solution in the preparation process of the display panel 10 from eroding the side wall of the isolation structure 12, and further improve the display effect and the service life of the display panel 10.

[0098] In one embodiment, as Figure 4 shown, the pit 131 is arranged around the isolation opening 13.

[0099] That is, as viewed from the top view of the display panel 10, the recess 131 is arranged on the second isolation part 122 of the isolation structure 12 around each isolation opening 13, and the isolation structure 12 is formed around the isolation opening 13.

[0100] In the above embodiment, the recess 131 is arranged around the isolation opening 13, which can better avoid the warping phenomenon of the overhanging area of the second isolation part 122, thereby preventing the etching solution or the stripping solution in the preparation process of the display panel 10 from eroding the side wall of the isolation structure 12, and thus improving the display effect and service life of the display panel 10.

[0101] In one embodiment, as shown in FIG. 1, the first isolation part 121 includes a first end 121a close to the substrate 11 and a second end 121b away from the substrate 11, and the orthogonal projection of the second end 121b on the substrate 11 is located in the orthogonal projection of the first end 121a on the substrate 11. Figure 3

[0102] In the above embodiment, the orthogonal projection of the second end 121b on the substrate 11 is located in the orthogonal projection of the first end 121a on the substrate 11. It can be understood that, as shown in FIG. 1, the first isolation part 121 is in a right trapezoidal structure. Figure 3 In the above embodiment, the orthogonal projection of the second end 121b on the substrate 11 is located in the orthogonal projection of the first end 121a on the substrate 11. It can be understood that, as shown in FIG. 1, the first isolation part 121 is in a right trapezoidal structure.

[0103] Figures 2-4 In one embodiment, as shown in FIG. 1, the second isolation part 122 includes an isolation sub-part 1221, and the isolation sub-part 1221 is arranged around the recess 131.

[0104] In the thickness direction of the display panel 10, the size of the recess 131 is smaller than the size of the isolation sub-part 1221.

[0105] ​​Isolation sub-part 1221 refers to the suspended portion in the second isolation part 122. Viewed from the top view of the display panel 10, the isolation sub-part 1221 included in the second isolation part 122 is disposed around the recess 131. The isolation sub-part 1221 and the recess 131 can be connected or spaced apart, that is, there is a gap between the isolation sub-part 1221 and the recess 131.

[0106] In one embodiment, such as Figure 3 As shown, the isolation sub-part 1221 includes a first surface 1221a close to the substrate 11 and a second surface 1221b away from the substrate 11, and the recess 131 includes a first opening 131a close to the substrate 11 and a second opening 131b away from the substrate 11.

[0107] Along the thickness direction of the display panel 10, the distance between the first opening 131a and the second opening 131b is less than the distance between the first surface 1221a and the second surface 1221b. That is, the thickness of the recess 131 is less than the thickness of the isolator portion 1221, and the thickness of the isolator portion 1221 is the same as the thickness of the second isolator portion 122.

[0108] In one embodiment, the orthographic projection of the first opening 131a on the substrate 11 lies within the orthographic projection of the second opening 131b on the substrate 11.

[0109] It is understandable that pit 131 has an inverted trapezoidal structure.

[0110] In one embodiment, such as Figure 3 As shown, the isolation sub-part 1221 includes a first isolation sub-part 1221c, a second isolation sub-part 1221d, and a third isolation sub-part 1221e. The first isolation sub-part 1221c and the third isolation sub-part 1221e are disposed around the recess 131. The second isolation sub-part 1221d is located between the first isolation sub-part 1221c and the second isolation sub-part 1221d, and is disposed on the side of the recess 131 near the substrate 11.

[0111] It is understood that both the first isolation sub-part 1221c and the third isolation sub-part 1221e are connected to the second isolation sub-part 1221d. Along a direction perpendicular to the thickness direction of the display panel 10, the recess 131 includes a first side and a second side. The first isolation sub-part 1221c is located on the first side of the recess 131, and the third isolation sub-part 1221e is located on the second side of the recess 131. The second isolation sub-part 1221d is located on the side of the recess 131 closest to the substrate 11.

[0112] In an optional embodiment, the size of the first isolation sub-portion 1221c is the same as the size of the third isolation sub-portion 1221e, and the size of the second isolation sub-portion 1221d is smaller than the size of the first isolation sub-portion 1221c or the size of the third isolation sub-portion 1221e, along the thickness direction of the display panel 10.

[0113] It can be understood that the size of the recess 131 and the size of the second isolation sub-portion 1221d are the same as the size of the first isolation sub-portion 1221c or the size of the third isolation sub-portion 1221e.

[0114] In an embodiment, as shown in FIG. 1, the isolation structure 12 includes a first isolation portion 121 and a second isolation portion 122. Figure 3 The isolation opening 13 includes a first isolation sub-opening 132 enclosed by the first isolation portion 121, and a second isolation sub-opening 133 enclosed by the second isolation portion 122.

[0115] The orthographic projection of the second isolation sub-opening 133 on the substrate 11 is located within the orthographic projection of the first isolation sub-opening 132 on the substrate 11.

[0116] It can be understood that the isolation opening 13 has an approximately inverted trapezoidal structure,

[0117] In an optional embodiment, the material of the isolation structure 12 is metal. Specifically, the material of the first isolation portion 121 is aluminum, and the material of the second isolation portion 122 is titanium.

[0118] In an embodiment, as shown in FIG. 1, the isolation structure 12 further includes a third isolation portion 123 located on the side of the first isolation portion 121 close to the substrate 11. Figure 3 The orthographic projection of the first isolation portion 121 on the substrate 11 is located within the orthographic projection of the third isolation portion 123 on the substrate 11.

[0119] The isolation structure 12 includes the first isolation portion 121, the second isolation portion 122, and the third isolation portion 123, and the first isolation portion 121 is located between the second isolation portion 122 and the third isolation portion 123. That is, the side of the substrate 11 is provided with the third isolation portion 123, the side of the third isolation portion 123 away from the substrate 11 is provided with the first isolation portion 121, and the side of the first isolation portion 121 away from the substrate 11 is provided with the second isolation portion 122.

[0120] In an optional embodiment, the orthographic projection of the third isolation portion 123 on the substrate 11 is located within the orthographic projection of the second isolation portion 122 on the substrate 11.

[0121] In an optional embodiment, the material of the third isolation portion 123 is molybdenum.

[0122]

[0123] ​In the above embodiments, the isolation structure 12 includes a first isolation portion 121, a second isolation portion 122 and a third isolation portion 123. Such an isolation structure 12 has a better isolation function and can improve the display effect of the display panel 10.

[0124] In one embodiment, the orthographic projection of the recess 131 on the substrate 11 is located within the orthographic projection range of the third isolation portion 123 on the substrate 11.

[0125] like Figure 3 As shown, when the isolation structure 12 includes a third isolation portion 123, the isolation opening 13 also includes a third isolation sub-opening 134 formed by the third isolation portion 123. The orthographic projection of the third isolation sub-opening 134 on the substrate 11 is located within the orthographic projection of the first isolation sub-opening 132 on the substrate 11.

[0126] In an optional embodiment, the orthographic projection of the second isolator opening 133 on the substrate 11 lies within the orthographic projection of the third isolator opening 134 on the substrate 11.

[0127] In one embodiment, such as Figure 5 As shown, the plurality of isolation openings 13 include a plurality of first isolation openings 135 and a plurality of second isolation openings 136; a recess 131 is provided between adjacent first isolation openings 135 and second isolation openings 136.

[0128] An isolation structure 12 is provided between adjacent first isolation openings 135 and second isolation openings 136, and a pit 131 is provided on the side surface of the second isolation part 122 of the isolation structure 12 facing away from the substrate 11.

[0129] In the case where multiple isolation openings 13 include multiple first isolation openings 135 and multiple second isolation openings 136, such as Figures 5-8 As shown, the display panel 10 further includes: a plurality of first light-emitting devices 141 disposed in at least a portion of the first isolation opening 135, and a plurality of second light-emitting devices 142 disposed in at least a portion of the second isolation opening 136; the first light-emitting devices 141 and the second light-emitting devices 142 are respectively used to emit light of different colors.

[0130] It is understood that a first light-emitting device 141 may be provided at some of the multiple first isolation openings 135, or all of the first isolation openings 135 may be provided with a first light-emitting device 141. Similarly, a second light-emitting device 142 may be provided at some of the multiple second isolation openings 136, or all of the second isolation openings 136 may be provided with a second light-emitting device 142. Specifically, the first light-emitting device 141 may emit red light, and the second light-emitting device 142 may emit green light.

[0131] As Figures 6-8 shown, the display panel 10 further comprises a plurality of first packaging portions 151 corresponding to the plurality of first light emitting devices 141 and a plurality of second packaging portions 152 corresponding to the plurality of second light emitting devices 142.

[0132] In the process of preparing each light emitting device, the packaging portion corresponding to each light emitting device is prepared separately. That is, after the first light emitting device 141 is disposed at the first isolation opening 135, the first packaging portion 151 corresponding to the first light emitting device 141 is disposed on the side of the first light emitting device 141 away from the substrate 11. There are multiple first light emitting devices 141, and there are also multiple corresponding first packaging portions 151. Similarly, after the second light emitting device 142 is disposed at the second isolation opening 136, the second packaging portion 152 corresponding to the second light emitting device 142 is disposed on the side away from the second light emitting device 142. There are multiple second light emitting devices 142, and there are also multiple corresponding second packaging portions 152.

[0133] In the above embodiment, the display panel 10 comprises first light emitting devices 141 and second light emitting devices 142 capable of emitting different colors, the first light emitting devices 141 are disposed in at least part of the first isolation openings 135, and the second light emitting devices 142 are disposed in at least part of the second isolation openings 136. The first light emitting devices 141 and the second light emitting devices 142 are prepared separately, and the first packaging portions 151 corresponding to the first light emitting devices 141 and the second packaging portions 152 corresponding to the second light emitting devices 142 are prepared separately in the process of separately preparing the first light emitting devices 141 and the second light emitting devices 142. In this way, the first packaging portions 151 can protect the first light emitting devices 141, and the second packaging portions 152 can protect the second light emitting devices 142, thereby improving the display effect and service life of the display panel 10. In addition, by providing the recess 131 on the side surface of the second isolation portion 122 away from the substrate 11, the overhanging portion of the second isolation portion 122 can be prevented from warping, thereby preventing the etching solution or the stripping solution in the preparation process of the display panel 10 from eroding the side wall of the isolation structure 12, and preventing the etching solution or the stripping solution from eroding the first light emitting devices 141 and the second light emitting devices 142 to form dark spots, thereby improving the display effect and service life of the display panel 10.

[0134] In one embodiment, as Figures 6-8 shown, the first packaging portion 151 comprises a first main portion 1511 and a first sub-portion 1512 connected to the first main portion 1511, the first main portion 1511 covers the side wall of the isolation structure 12 corresponding to the first light emitting device 141 and the first isolation opening 135, and the first sub-portion 1512 is disposed on the side of the isolation structure 12 away from the substrate 11.

[0135] The first main part 1511 in the first encapsulation part 151 includes a first part 1511a and a second part 1511b, the first part 1511 covers the first light emitting device 141, and the second part 1511b is connected with the first part 1511a and is arranged on the side wall of the isolation structure 12 corresponding to the first isolation opening 135. That is, the second part 1511b extends along the side wall of the isolation structure 12 corresponding to the first isolation opening 135 until it is connected with the first sub part 1512.

[0136] In an embodiment, the first sub part 1512 is spaced apart from the surface of the side of the isolation structure 12 away from the substrate 11.

[0137] In the process of preparing the first encapsulation part 151, when etching, other film layers in the first encapsulation part 151, including the first sub part 1512 and the side of the isolation structure 12 away from the substrate 11, are etched away, so that the first sub part 1512 and the surface of the side of the isolation structure 12 away from the substrate 11 have a spacing.

[0138] In an embodiment, as shown in FIG. 1C, the second encapsulation part 152 includes a second main part 1521 and a second sub part 1522 connected with the second main part 1521, the second main part 1521 covers the second light emitting device 142 and the side wall of the isolation structure 12 corresponding to the second isolation opening 136, and the second sub part 1522 is arranged on the side of the isolation structure 12 away from the substrate 11. Figures 6-8

[0139] The second main part 1521 in the second encapsulation part 152 includes a third part 1521a and a fourth part 1521b, the third part 1521a covers the second light emitting device 142, and the fourth part 1521b is connected with the third part 1521a and is arranged on the side wall of the isolation structure 12 corresponding to the second isolation opening 136. That is, the fourth part 1521b extends along the side wall of the isolation structure 12 corresponding to the second isolation opening 136 until it is connected with the second sub part 1522.

[0140] In an embodiment, the second sub part 1522 is spaced apart from the surface of the side of the isolation structure 12 away from the substrate 11.

[0141] In the process of preparing the second encapsulation part 152, when etching, other film layers in the second encapsulation part 152, including the second sub part 1522 and the side of the isolation structure 12 away from the substrate 11, are etched away, so that the second sub part 1522 and the surface of the side of the isolation structure 12 away from the substrate 11 have a spacing.

[0142] In an optional embodiment, as shown in FIG. 1C, the second encapsulation part 152 includes a second main part 1521 and a second sub part 1522 connected with the second main part 1521, the second main part 1521 covers the second light emitting device 142 and the side wall of the isolation structure 12 corresponding to the second isolation opening 136, and the second sub part 1522 is arranged on the side of the isolation structure 12 away from the substrate 11. Figure 6 ​As shown, the distance between the first sub-portion 1512 and the surface of the side of the isolation structure 12 facing away from the substrate 11 is the same as the distance between the second sub-portion 1522 and the surface of the side of the isolation structure 12 facing away from the substrate 11, and the first sub-portion 1512 and the second sub-portion 1522 are spaced apart in a direction perpendicular to the thickness direction of the display panel 10.

[0143] In an optional embodiment, the distance between the first sub-portion 1512 and the second sub-portion 1522 in a direction perpendicular to the thickness direction of the display panel 10 is smaller than the size of the recess 131 in a direction perpendicular to the thickness direction of the display panel 10.

[0144] In an embodiment, as shown in Figure 7 and Figure 8 In the adjacent first encapsulation portion 151 and second encapsulation portion 152, the orthographic projection of the first sub-portion 1512 on the substrate 11 overlaps the orthographic projection of the second sub-portion 1522 on the substrate 11.

[0145] In an embodiment, the corresponding overlapping orthographic projections of the first sub-portion 1512 and the second sub-portion 1522 on the substrate 11 are located within the orthographic projection of the recess 131 on the substrate 11.

[0146] It can be understood that, in the adjacent first encapsulation portion 151 and second encapsulation portion 152, part of the second sub-portion 1522 is located on the side of part of the first sub-portion 1512 facing away from the substrate 11.

[0147] That is, part of the area of the second sub-portion 1522 is located on the side of part of the area of the first sub-portion 1512 facing away from the substrate 11.

[0148] In an optional embodiment, the corresponding overlapping orthographic projections of the first sub-portion 1512 and the second sub-portion 1522 on the substrate 11 coincide with the orthographic projection of the recess 131 on the substrate 11.

[0149] In an embodiment, in the adjacent first encapsulation portion 151 and second encapsulation portion 152, the first sub-portion 1512 and the second sub-portion 1522 are spaced apart.

[0150] In the process of preparing the first encapsulation portion 151 and the second encapsulation portion 152, when etching is performed, the film layer between the first sub-portion 1512 and the surface of the side of the isolation structure 12 facing away from the substrate 11 is etched away, and the film layer between the second sub-portion 1522 and the first sub-portion 1512 is etched away, so that the first sub-portion 1512 and the second sub-portion 1522 have a spacing therebetween.

[0151] In the above embodiment, the orthographic projection of the first sub-portion 1512 on the substrate 11 overlaps with the orthographic projection of the second sub-portion 1522 on the substrate 11, so that the arrangement of the first sub-portion 1512 and the second sub-portion 1522 is more advantageous for the encapsulation of the isolation structure 12 during subsequent wet processes, so that the path of the etching solution or the stripping solution invading the isolation structure 12 is more complex, thereby better avoiding the warping of the suspended area of the second isolation portion 122, thereby preventing the etching solution or the stripping solution during the preparation process from eroding the sidewall of the isolation structure 12 of the display panel 10, and thereby improving the display effect and service life of the display panel 10.

[0152] In one embodiment, as shown in FIG. 1, the plurality of isolation openings 13 further include a plurality of third isolation openings 137; and a recess 131 is arranged between adjacent second isolation openings 136 and third isolation openings 137. Figures 5-8

[0153] A recess 131 is arranged on the side surface of the second isolation portion 122 of the isolation structure 12 away from the substrate 11 between adjacent second isolation openings 136 and third isolation openings 137.

[0154] In the case where the plurality of isolation openings 13 include a plurality of third isolation openings 137, the display panel 10 further includes a plurality of third light emitting devices 143 arranged in at least part of the third isolation openings 137, and the third light emitting devices 143 emit light of a color different from the light emitted by the first light emitting devices 141 and the second light emitting devices 142.

[0155] It can be understood that the third light emitting devices 143 can be arranged at part of the plurality of third isolation openings 137, or can be arranged at all of the plurality of third isolation openings 137. Specifically, the third light emitting devices 143 can emit blue light.

[0156] The display panel 10 further includes a plurality of third encapsulation portions 153 corresponding to the plurality of third light emitting devices 143.

[0157] After the third light emitting devices 143 are arranged in the third isolation openings 137, third encapsulation portions 153 corresponding to the third light emitting devices 143 are arranged on the side of the third light emitting devices 143 away from the substrate 11. There are a plurality of third light emitting devices 143, and there are also a plurality of corresponding third encapsulation portions 153.

[0158] ​In the above embodiments, the display panel 10 further includes a third light-emitting device 143 capable of emitting light of different colors than the first light-emitting device 141 and the second light-emitting device 142. This enables the display panel 10 to emit light of multiple different colors, improving its performance. Furthermore, after separately fabricating the third light-emitting device 143, a corresponding third encapsulation portion 153 is also separately fabricated. The third encapsulation portion 153 can protect the third light-emitting device 143, thereby improving the display effect and lifespan of the display panel 10. In addition, a recess 131 is provided between adjacent second isolation openings 136 and third isolation openings 137. This can prevent the suspended portion of the second isolation part 122 in the isolation structure 12 between the second isolation opening 136 and the third isolation opening 137 from warping. This prevents the etching solution or stripping solution during the manufacturing process of the display panel 10 from eroding the sidewall of the isolation structure 12, and also prevents the etching solution or stripping solution during the manufacturing process of the display panel 10 from eroding the third light-emitting device 143 and forming dark spots. This can improve the display effect and service life of the display panel 10.

[0159] In one embodiment, such as Figures 6-8 As shown, the third packaging part 153 includes a third main part 1531 and a third sub-part 1532 connected to the third main part 1531. The third main part 1531 covers the sidewall of the isolation structure 12 corresponding to the third light-emitting device 143 and the third isolation opening 137. The third sub-part 1532 is disposed on the side of the isolation structure 12 away from the substrate 11.

[0160] The third main portion 1531 in the third encapsulation portion 153 includes a fifth portion 1531a and a sixth portion 1531b. The fifth portion 1531a covers the third light-emitting device 143, and the sixth portion 1531b is connected to the fifth portion 1531a and is disposed on the sidewall of the isolation structure 12 corresponding to the third isolation opening 137. That is, the sixth portion 1531b extends along the sidewall of the isolation structure 12 corresponding to the third isolation opening 137 until it is connected to the third sub-portion 1532.

[0161] In one embodiment, the third sub-part 1532 is spaced apart from the surface of the isolation structure 12 on the side opposite to the substrate 11.

[0162] During the fabrication of the third package portion 153, during etching, other film layers disposed on the side of the third sub-part 1532 and the isolation structure 12 away from the substrate 11 are etched away, so that the surfaces of the third sub-part 1532 and the isolation structure 12 away from the substrate 11 have a gap.

[0163] The third encapsulation part 153 provided by the above embodiment includes a third main part 1531 covering the side wall of the isolation structure 12 corresponding to the third light-emitting device 143 and the third isolation opening 137, and a third sub-part 1532 arranged on the side of the isolation structure 12 away from the substrate 11. Such third encapsulation part 153 can wrap the isolation structure 12, and can protect the isolation structure 12 to improve the service life of the display panel 10.

[0164] In one embodiment, as shown in Figures 6-8 , the second encapsulation part 152 further includes a fourth sub-part 1523 connected with the second main part 1521, and the fourth sub-part 1523 is arranged on the side of the isolation structure 12 away from the substrate 11.

[0165] It can be understood that the isolation structure 12 corresponding to the second isolation opening 136 includes the isolation structure 12 close to the first isolation opening 135 and the isolation structure 12 close to the third isolation opening 137. The second sub-part 1522 in the second encapsulation part 152 is located on the side of the isolation structure 12 close to the first isolation opening 135 away from the substrate 11, and the fourth sub-part 1523 in the second encapsulation part 152 is located on the side of the isolation structure 12 close to the third isolation opening 137 away from the substrate 11.

[0166] In one embodiment, as shown in Figures 6-8 , the fourth sub-part 1523 is spaced apart from the surface of the side of the isolation structure 12 away from the substrate 11.

[0167] In the process of preparing the second encapsulation part 152, when etching, other film layers provided on the side of the fourth sub-part 1523 in the second encapsulation part 152 and the isolation structure 12 away from the substrate 11 are etched away, so that the fourth sub-part 1523 and the surface of the side of the isolation structure 12 away from the substrate 11 have a spacing.

[0168] In one embodiment, as shown in Figure 7 and Figure 8 , in the adjacent second encapsulation part 152 and third encapsulation part 153, the orthographic projection of the third sub-part 1532 on the substrate 11 and the orthographic projection of the fourth sub-part 1523 on the substrate 11 intersect and overlap.

[0169] In one embodiment, as shown in Figure 7 and Figure 8 , the third sub-part 1532 and the fourth sub-part 1523 correspond to the intersecting and overlapping orthographic projections on the substrate 11, which are located within the orthographic projection of the recess 131 on the substrate 11.

[0170] It can be understood that in the adjacent second encapsulation part 152 and third encapsulation part 153, part of the third sub-part 1532 is located on the side of part of the fourth sub-part 1523 away from the substrate 11. It can be understood that in the adjacent second encapsulation part 152 and third encapsulation part 153, part of the third sub-part 1532 is located on the side of part of the fourth sub-part 1523 away from the substrate 11.

[0171] In other words, a portion of the third sub-section 1532 is located on the side of the fourth sub-section 1523 that is away from the substrate 11.

[0172] In an optional embodiment, the corresponding overlapping orthographic projections of the third sub-part 1532 and the fourth sub-part 1523 on the substrate 11 coincide with the orthographic projection of the recess 131 on the substrate 11.

[0173] In one embodiment, in adjacent second packaging portion 152 and third packaging portion 153, third sub-portion 1532 and fourth sub-portion 1523 are spaced apart.

[0174] During the fabrication of the second package portion 152 and the third package portion 153, during etching, the film layer between the fourth sub-part 1523 and the surface of the isolation structure 12 facing away from the substrate 11 is etched away, and the film layer between the third sub-part 1532 and the fourth sub-part 1523 is etched away, so that there is a gap between the third sub-part 1532 and the fourth sub-part 1523.

[0175] In the above embodiment, the orthographic projection of the third sub-part 1532 on the substrate overlaps with the orthographic projection of the fourth sub-part 1523 on the substrate 11. In this way, the arrangement of the third sub-part 1532 and the fourth sub-part 1523 provides better coverage of the isolation structure 12 during the subsequent wet process. This makes the path of the etching solution or stripping solution invading the isolation structure 12 during the manufacturing process of the display panel 10 more complex, thereby better preventing warping of the suspended area of ​​the second isolation part 122. This prevents the etching solution or stripping solution during the manufacturing process of the display panel 10 from eroding the sidewall of the isolation structure 12, thereby improving the display effect and service life of the display panel 10.

[0176] In one embodiment, such as Figures 6-8 As shown, the first light-emitting device 141, the second light-emitting device 142, and the third light-emitting device 143 in the display panel 10 all include a first electrode 144, a light-emitting functional part 145, and a second electrode 146 stacked along the side away from the substrate 11.

[0177] In this design, the first electrode 144 is the anode, and the second electrode 146 is the cathode. The light-emitting functional unit 145 includes at least an emission layer (EML), and may also include one or more of the following: a hole injection layer (HIL), a hole transport layer (HTL), an electron injection layer (EIL), an electron transport layer (ETL), a hole block layer (HBL), and an electron block layer (EBL). Alternatively, the light-emitting functional unit 145 may be a stacked light-emitting layer, that is, it includes at least two light-emitting layers and a charge generation layer (CGL) located between adjacent light-emitting layers.

[0178] In one embodiment, such as Figure 7 and Figure 8 As shown, the display panel 10 also includes a pixel defining layer 16 disposed on the side of the isolation structure 12 near the substrate 11.

[0179] The pixel defining layer 16 encloses and forms a plurality of pixel openings 161; the first light-emitting device 141, the second light-emitting device 142 and the third light-emitting device 143 are at least partially disposed within the corresponding pixel openings 161.

[0180] The pixel defining layer 16 can be a multi-layer structure, and the material of the pixel defining layer 16 can be an organic insulating layer or an inorganic insulating layer. Specifically, the pixel defining layer 16 may include a first defining layer of organic insulating layer and a second defining layer of inorganic insulating layer.

[0181] The pixel opening 161 corresponds one-to-one with the isolation opening 13, and the orthographic projection of the pixel opening 161 on the substrate 11 is located within the orthographic projection of the isolation opening 13 on the substrate 11.

[0182] In an optional embodiment, such as Figure 7 As shown, a portion of the isolation structure 12 adjacent to the first isolation opening 135 has a recess 131, while another portion of the isolation structure 12 does not have a recess 131. Similarly, a portion of the isolation structure 12 adjacent to the third isolation opening 137 has a recess 131, while another portion of the isolation structure 12 does not have a recess 131. In an optional embodiment, as... Figure 8As shown, a recess 131 is arranged between any adjacent isolation openings 13. Specifically, the recess 131 is arranged on the isolation structure 12 adjacent to the first isolation opening 135, the recess 131 is arranged on the isolation structure 12 adjacent to the second isolation opening 136, and the recess 131 is arranged on the isolation structure 12 adjacent to the third isolation opening 137.

[0183] Please refer to Figures 2-4 In an embodiment, a display panel 10 is provided, which includes a substrate 11 and an isolation structure 12. The isolation structure 12 is arranged on one side of the substrate 11, and the isolation structure 12 encloses a plurality of isolation openings 13. The isolation structure 12 includes a first isolation portion 121 and a second isolation portion 122. The first isolation portion 121 is arranged on the side of the second isolation portion 122 close to the substrate 11. The orthographic projection of the first isolation portion 121 on the substrate 11 is located within the orthographic projection of the second isolation portion 122 on the substrate 11.

[0184] A recess 131 is arranged between at least part of the adjacent isolation openings 13. The recess 131 is arranged on the side surface of the second isolation portion 122 away from the substrate 11.

[0185] The second isolation portion 122 includes an isolation sub-portion 1221. In the thickness direction of the display panel 10, the size of the isolation sub-portion 1221 is greater than the size of the recess 131, and the isolation sub-portion 1221 is arranged around the recess 131.

[0186] The description of the substrate 11 and the isolation structure 12 can refer to the specific description in the above embodiments, which will not be repeated here.

[0187] The first isolation portion 121 is arranged on one side of the substrate 11, the second isolation portion 122 is arranged on the side of the first isolation portion 121 away from the substrate, and the recess 131 is arranged on the surface of the second isolation portion 122 away from the substrate 11. That is, the isolation structure 12 is arranged between part of the adjacent isolation openings 13, the surface of the second isolation portion 122 of the isolation structure 12 away from the substrate 11 is provided with the recess 131. The orthographic projection of the first isolation portion 121 on the substrate 11 is located within the orthographic projection of the second isolation portion 122 on the substrate 11, so that the second isolation portion 122 has a suspended portion. In the thickness direction of the display panel 10, the size of the isolation sub-portion 1221 in the second isolation portion 122 is greater than the size of the recess 131, and the isolation sub-portion 1221 is arranged around the recess 131, indicating that the recess 131 is located in the middle portion of the surface of the second isolation portion 122 away from the substrate 11. In this way, the thickness of the middle portion of the second isolation portion 122 is less than the thickness of the suspended portion of the second isolation portion 122.

[0188] In an optional embodiment, the isolation sub-portion 1221 can be connected with the recess 131 or spaced apart from the recess 131, that is, the isolation sub-portion 1221 and the recess 131 have a spacing therebetween.

[0189] In the embodiment of the present application, the display panel 10 comprises a substrate 11 and an isolation structure 12, the isolation structure 12 is arranged on one side of the substrate 11, and the isolation structure 12 encloses a plurality of isolation openings 13; the isolation structure 12 comprises a first isolation portion 121 and a second isolation portion 122, the first isolation portion 121 is arranged on the side of the second isolation portion 122 close to the substrate 11, and the orthographic projection of the first isolation portion 121 on the substrate 11 is located within the orthographic projection of the second isolation portion 122 on the substrate 11; at least part of the isolation openings 13 adjacent to each other are provided with a recess 131, the recess 131 is provided with the side of the second isolation portion 122 away from the substrate 11; the second isolation portion 122 comprises an isolation sub-portion 1221, along the thickness direction of the display panel 10, the size of the isolation sub-portion 1221 is greater than the size of the recess 131, and the isolation sub-portion 1221 is arranged around the recess 131. In the embodiment, the second isolation portion 122 has a suspended portion, the recess 131 is located in the middle portion of the side surface of the second isolation portion 122 away from the substrate 11, the size of the isolation sub-portion 1221 is greater than the size of the recess 131, so that the thickness of the middle region of the second isolation portion 122 is less than the thickness of the suspended region of the second isolation portion 122, so that the suspended portion of the second isolation portion 122 is not prone to warping, and the etching solution or the stripping solution in the preparation process of the display panel 10 can be prevented from eroding the side wall of the isolation structure 12, thereby improving the display effect and service life of the display panel 10. In addition, the etching solution or the stripping solution can also flow into the recess 131 preferentially, which can reduce the solution that may enter the isolation structure 12, thereby improving the display effect and service life of the display panel 10.

[0190] In one embodiment, as shown in FIG. 1, any adjacent isolation openings 13 are provided with a recess 131. Figure 3

[0191] That is, the isolation structure 12 encloses a plurality of isolation openings 13, and the side surface of the second isolation portion 122 of the isolation structure 12 between any adjacent two isolation openings 13 of the plurality of isolation openings 13 is provided with a recess 131.

[0192] In the above embodiment, the second isolation portion 122 of the isolation structure 12 between any adjacent isolation openings 13 is provided with a recess 131, so that the suspended portion of the second isolation portion 122 between any adjacent isolation openings 13 is not prone to warping, thereby preventing the etching solution or the stripping solution in the preparation process of the display panel 10 from eroding the side wall of the isolation structure 12, and further improving the display effect and service life of the display panel 10.​

[0193] In one embodiment, as shown in FIG. 1, the recess 131 is arranged around the isolation opening 13. Figure 4

[0194] That is, as viewed from the top view of the display panel 10, the recess 131 is arranged on the second isolation part 122 of the isolation structure 12 around each isolation opening 13, and the isolation structure 12 is enclosed to form the isolation opening 13.

[0195] In the above embodiment, the recess 131 is arranged around the isolation opening 13, which can better avoid the warping phenomenon of the overhanging area of the second isolation part 122, thereby preventing the etching solution or the stripping solution in the preparation process of the display panel 10 from eroding the side wall of the isolation structure 12, and thus improving the display effect and service life of the display panel 10.

[0196] In one embodiment, as shown in FIG. 1, the first isolation part 121 includes a first end 121a close to the substrate 11 and a second end 121b away from the substrate 11, and the orthogonal projection of the second end 121b on the substrate 11 is located within the orthogonal projection of the first end 121a on the substrate 11; the orthogonal projection of the recess 131 on the substrate 11 is located within the orthogonal projection of the second end 121b on the substrate 11; or the orthogonal projection of the recess 131 on the substrate 11 coincides with the orthogonal projection of the second end 121b on the substrate 11. Figure 3 In the above embodiment, the orthogonal projection of the second end 121b on the substrate 11 in the first isolation part 121 is located within the orthogonal projection of the first end 121a on the substrate 11, and as shown in FIG. 1, the first isolation part 121 can be a right trapezoidal structure. The orthogonal projection of the recess 131 on the substrate 11 can be within the orthogonal projection of the second end 121b on the substrate 11, or can coincide with the orthogonal projection of the second end 121b on the substrate 11, so that the recess 131 is located in the second isolation part 122 except the overhanging area, which can better avoid the warping phenomenon of the overhanging part of the second isolation part 122, thereby preventing the etching solution or the stripping solution in the preparation process of the display panel 10 from eroding the side wall of the isolation structure 12, and thus improving the display effect and service life of the display panel 10.

[0197] Figure 3 In the above embodiment, the orthogonal projection of the second end 121b on the substrate 11 in the first isolation part 121 is located within the orthogonal projection of the first end 121a on the substrate 11, and as shown in FIG. 1, the first isolation part 121 can be a right trapezoidal structure. The orthogonal projection of the recess 131 on the substrate 11 can be within the orthogonal projection of the second end 121b on the substrate 11, or can coincide with the orthogonal projection of the second end 121b on the substrate 11, so that the recess 131 is located in the second isolation part 122 except the overhanging area, which can better avoid the warping phenomenon of the overhanging part of the second isolation part 122, thereby preventing the etching solution or the stripping solution in the preparation process of the display panel 10 from eroding the side wall of the isolation structure 12, and thus improving the display effect and service life of the display panel 10.

[0198] In one embodiment, as shown in FIG. 1, the first isolation part 121 includes a first end 121a close to the substrate 11 and a second end 121b away from the substrate 11, and the orthogonal projection of the second end 121b on the substrate 11 is located within the orthogonal projection of the first end 121a on the substrate 11; the orthogonal projection of the recess 131 on the substrate 11 is located within the orthogonal projection of the second end 121b on the substrate 11; or the orthogonal projection of the recess 131 on the substrate 11 coincides with the orthogonal projection of the second end 121b on the substrate 11. Figure 3 In the above embodiment, the orthogonal projection of the second end 121b on the substrate 11 in the first isolation part 121 is located within the orthogonal projection of the first end 121a on the substrate 11, and as shown in FIG. 1, the first isolation part 121 can be a right trapezoidal structure. The orthogonal projection of the recess 131 on the substrate 11 can be within the orthogonal projection of the second end 121b on the substrate 11, or can coincide with the orthogonal projection of the second end 121b on the substrate 11, so that the recess 131 is located in the second isolation part 122 except the overhanging area, which can better avoid the warping phenomenon of the overhanging part of the second isolation part 122, thereby preventing the etching solution or the stripping solution in the preparation process of the display panel 10 from eroding the side wall of the isolation structure 12, and thus improving the display effect and service life of the display panel 10.

[0199] ​​In the thickness direction of the display panel 10, the distance between the first opening 131a and the second opening 131b is less than the distance between the first surface 1221a and the second surface 1221b. That is, the thickness of the pit 131 is less than the thickness of the sub-isolation portion 1221, and the thickness of the sub-isolation portion 1221 is the same as the thickness of the second isolation portion 122.

[0200] In one embodiment, the orthographic projection of the first opening 131a on the substrate 11 is located within the orthographic projection of the second opening 131b on the substrate 11.

[0201] It can be understood that the pit 131 has an inverted trapezoidal structure.

[0202] In one embodiment, as shown in FIG. 1, the sub-isolation portion 1221 includes a first sub-isolation portion 1221c, a second sub-isolation portion 1221d, and a third sub-isolation portion 1221e. The first sub-isolation portion 1221c and the third sub-isolation portion 1221e are arranged around the pit 131, and the second sub-isolation portion 1221d is located between the first sub-isolation portion 1221c and the second sub-isolation portion 1221d and is arranged on the side of the pit 131 close to the substrate 11. Figure 3 It can be understood that the first sub-isolation portion 1221c and the third sub-isolation portion 1221e are both connected to the second sub-isolation portion 1221d. In a direction perpendicular to the thickness direction of the display panel 10, the pit 131 includes a first side and a second side. The first sub-isolation portion 1221c is located on the first side of the pit 131, and the third sub-isolation portion 1221e is located on the second side of the pit 131. The second sub-isolation portion 1221d is located on the side of the pit 131 close to the substrate 11.

[0203] In one optional embodiment, in the thickness direction of the display panel 10, the size of the first sub-isolation portion 1221c is the same as the size of the third sub-isolation portion 1221e, and the size of the second sub-isolation portion 1221d is less than the size of the first sub-isolation portion 1221c or the size of the third sub-isolation portion 1221e.

[0204] It can be understood that the size of the pit 131 is the same as the sum of the size of the second sub-isolation portion 1221d and the size of the first sub-isolation portion 1221c or the size of the third sub-isolation portion 1221e.

[0205] In one embodiment, as shown in FIG. 1, the isolation opening 13 includes a first sub-isolation opening 132 enclosed by the first isolation portion 121, and a second sub-isolation opening 133 enclosed by the second isolation portion 122.

[0206] Figure 3 It can be understood that the pit 131 has an inverted trapezoidal structure.

[0207] ​A normal projection of the second isolation sub-opening 133 on the substrate 11 is located within a normal projection of the first isolation sub-opening 132 on the substrate 11.

[0208] It can be understood that the isolation sub-opening 13 has an approximate inverted trapezoidal structure,

[0209] In an optional embodiment, the isolation structure 12 is made of metal. Specifically, the first isolation portion 121 is made of aluminum, and the second isolation portion 122 is made of titanium.

[0210] In an embodiment, as shown in FIG. 1, the isolation structure 12 further includes a third isolation portion 123 arranged on a side of the first isolation portion 121 close to the substrate 11. Figure 3 A normal projection of the first isolation portion 121 on the substrate 11 is located within a normal projection of the third isolation portion 123 on the substrate 11.

[0211] The isolation structure 12 includes the first isolation portion 121, the second isolation portion 122, and the third isolation portion 123, and the first isolation portion 121 is located between the second isolation portion 122 and the third isolation portion 123. That is, a side of the substrate 11 is provided with the third isolation portion 123, a side of the third isolation portion 123 away from the substrate 11 is provided with the first isolation portion 121, and a side of the first isolation portion 121 away from the substrate 11 is provided with the second isolation portion 122.

[0212] In an optional embodiment, a normal projection of the third isolation portion 123 on the substrate 11 is located within a normal projection of the second isolation portion 122 on the substrate 11.

[0213] In an optional embodiment, the third isolation portion 123 is made of molybdenum.

[0214] In the above embodiment, the isolation structure 12 includes the first isolation portion 121, the second isolation portion 122, and the third isolation portion 123, and such an isolation structure 12 has better isolation function and can improve the display effect of the display panel 10.

[0215] In an embodiment, a normal projection of the pit 131 on the substrate 11 is located within a normal projection range of the third isolation portion 123 on the substrate 11.

[0216] As shown in FIG. 1, in the case where the isolation structure 12 includes the third isolation portion 123, the isolation sub-opening 13 further includes a third isolation sub-opening 134 enclosed by the third isolation portion 123, and a normal projection of the third isolation sub-opening 134 on the substrate 11 is located within a normal projection of the first isolation sub-opening 132 on the substrate 11.

[0217] Figure 3

[0218] ​​In an optional embodiment, the orthographic projection of the second isolator opening 133 on the substrate 11 lies within the orthographic projection of the third isolator opening 134 on the substrate 11.

[0219] In one embodiment, such as Figure 5 As shown, the plurality of isolation openings 13 include a plurality of first isolation openings 135 and a plurality of second isolation openings 136; a recess 131 is provided between adjacent first isolation openings 135 and second isolation openings 136.

[0220] An isolation structure 12 is provided between adjacent first isolation openings 135 and second isolation openings 136, and a pit 131 is provided on the side surface of the second isolation part 122 of the isolation structure 12 facing away from the substrate 11.

[0221] In the case where multiple isolation openings 13 include multiple first isolation openings 135 and multiple second isolation openings 136, such as Figures 5-8 As shown, the display panel 10 further includes: a plurality of first light-emitting devices 141 disposed in at least a portion of the first isolation opening 135, and a plurality of second light-emitting devices 142 disposed in at least a portion of the second isolation opening 136; the first light-emitting devices 141 and the second light-emitting devices 142 are respectively used to emit light of different colors.

[0222] It is understood that a first light-emitting device 141 may be provided at some of the multiple first isolation openings 135, or all of the first isolation openings 135 may be provided with a first light-emitting device 141. Similarly, a second light-emitting device 142 may be provided at some of the multiple second isolation openings 136, or all of the second isolation openings 136 may be provided with a second light-emitting device 142. Specifically, the first light-emitting device 141 may emit red light, and the second light-emitting device 142 may emit green light.

[0223] like Figures 6-8 As shown, the display panel 10 also includes a plurality of first encapsulation portions 151 and a plurality of second encapsulation portions 152, wherein the plurality of first encapsulation portions 151 correspond one-to-one with a plurality of first light-emitting devices 141, and the plurality of second encapsulation portions 152 correspond one-to-one with a plurality of second light-emitting devices 142.

[0224] In the process of preparing each light emitting device, the corresponding encapsulation part of each light emitting device is prepared separately. That is, after the first light emitting device 141 is arranged at the first isolation opening 135, the corresponding first encapsulation part 151 of the first light emitting device 141 is arranged on the side of the first light emitting device 141 away from the substrate 11. There are multiple first light emitting devices 141, and there are also multiple corresponding first encapsulation parts 151. Similarly, after the second light emitting device 142 is arranged at the second isolation opening 136, the corresponding second encapsulation part 152 of the second light emitting device 142 is arranged on the side away from the second light emitting device 142. There are multiple second light emitting devices 142, and there are also multiple corresponding second encapsulation parts 152.

[0225] In the above embodiment, the display panel 10 includes first light emitting devices 141 and second light emitting devices 142 capable of emitting different colors. The first light emitting devices 141 are arranged in at least part of the first isolation openings 135, and the second light emitting devices 142 are arranged in at least part of the second isolation openings 136. The first light emitting devices 141 and the second light emitting devices 142 are prepared separately. In the process of separately preparing the first light emitting devices 141 and the second light emitting devices 142, the corresponding first encapsulation parts 151 of the first light emitting devices 141 and the corresponding second encapsulation parts 152 of the second light emitting devices 142 are prepared separately. In this way, the first encapsulation parts 151 can protect the first light emitting devices 141, and the second encapsulation parts 152 can protect the second light emitting devices 142, thereby improving the display effect and service life of the display panel 10. In addition, by arranging the recess 131 on the side surface of the second isolation part 122 away from the substrate 11, the overhanging part of the second isolation part 122 can be prevented from warping, thereby preventing the etching solution or the stripping solution in the preparation process of the display panel 10 from eroding the side wall of the isolation structure 12, and preventing the etching solution or the stripping solution from eroding the first light emitting devices 141 and the second light emitting devices 142 to form dark spots, thereby improving the display effect and service life of the display panel 10.

[0226] In one embodiment, as shown in Figures 6-8 The first encapsulation part 151 includes a first main part 1511 and a first sub-part 1512 connected to the first main part 1511. The first main part 1511 covers the side wall of the isolation structure 12 corresponding to the first light emitting device 141 and the first isolation opening 135, and the first sub-part 1512 is arranged on the side of the isolation structure 12 away from the substrate 11.

[0227] The first main part 1511 in the first encapsulation part 151 includes a first part 1511a and a second part 1511b. The first part 1511 covers the first light emitting device 141. The second part 1511b is connected with the first part 1511a and is arranged on the side wall of the isolation structure 12 corresponding to the first isolation opening 135. That is, the second part 1511b extends along the side wall of the isolation structure 12 corresponding to the first isolation opening 135 until it is connected with the first sub part 1512.

[0228] In one embodiment, the first sub part 1512 is spaced apart from the surface of the side of the isolation structure 12 away from the substrate 11.

[0229] In the process of preparing the first encapsulation part 151, when etching, other film layers in the first encapsulation part 151, including the first sub part 1512 and the surface of the side of the isolation structure 12 away from the substrate 11, are etched away, so that the first sub part 1512 and the surface of the side of the isolation structure 12 away from the substrate 11 have a spacing.

[0230] In one embodiment, as shown in FIG. 1, the second encapsulation part 152 includes a second main part 1521 and a second sub part 1522 connected with the second main part 1521. The second main part 1521 covers the second light emitting device 142 and the side wall of the isolation structure 12 corresponding to the second isolation opening 136. The second sub part 1522 is arranged on the side of the isolation structure 12 away from the substrate 11. Figures 6-8

[0231] The second main part 1521 in the second encapsulation part 152 includes a third part 1521a and a fourth part 1521b. The third part 1521a covers the second light emitting device 142. The fourth part 1521b is connected with the third part 1521a and is arranged on the side wall of the isolation structure 12 corresponding to the second isolation opening 136. That is, the fourth part 1521b extends along the side wall of the isolation structure 12 corresponding to the second isolation opening 136 until it is connected with the second sub part 1522.

[0232] In one embodiment, the second sub part 1522 is spaced apart from the surface of the side of the isolation structure 12 away from the substrate 11.

[0233] In the process of preparing the second encapsulation part 152, when etching, other film layers in the second encapsulation part 152, including the second sub part 1522 and the surface of the side of the isolation structure 12 away from the substrate 11, are etched away, so that the second sub part 1522 and the surface of the side of the isolation structure 12 away from the substrate 11 have a spacing.

[0234] In one optional embodiment, as shown in FIG. 1, the second encapsulation part 152 includes a second main part 1521 and a second sub part 1522 connected with the second main part 1521. The second main part 1521 covers the second light emitting device 142 and the side wall of the isolation structure 12 corresponding to the second isolation opening 136. The second sub part 1522 is arranged on the side of the isolation structure 12 away from the substrate 11. Figure 6 ​As shown, the distance between the first sub-portion 1512 and the surface of the side of the isolation structure 12 facing away from the substrate 11 is the same as the distance between the second sub-portion 1522 and the surface of the side of the isolation structure 12 facing away from the substrate 11, and the first sub-portion 1512 and the second sub-portion 1522 are spaced apart in a direction perpendicular to the thickness direction of the display panel 10.

[0235] In an optional embodiment, the distance between the first sub-portion 1512 and the second sub-portion 1522 in a direction perpendicular to the thickness direction of the display panel 10 is smaller than the size of the recess 131 in a direction perpendicular to the thickness direction of the display panel 10.

[0236] In an embodiment, as shown in Figure 7 and Figure 8 In the adjacent first encapsulation portion 151 and second encapsulation portion 152, the orthographic projection of the first sub-portion 1512 on the substrate 11 overlaps the orthographic projection of the second sub-portion 1522 on the substrate 11.

[0237] In an embodiment, the corresponding overlapping orthographic projections of the first sub-portion 1512 and the second sub-portion 1522 on the substrate 11 are located within the orthographic projection of the recess 131 on the substrate 11.

[0238] It can be understood that, in the adjacent first encapsulation portion 151 and second encapsulation portion 152, part of the second sub-portion 1522 is located on the side of part of the first sub-portion 1512 facing away from the substrate 11.

[0239] That is, part of the area of the second sub-portion 1522 is located on the side of part of the area of the first sub-portion 1512 facing away from the substrate 11.

[0240] In an optional embodiment, the corresponding overlapping orthographic projections of the first sub-portion 1512 and the second sub-portion 1522 on the substrate 11 coincide with the orthographic projection of the recess 131 on the substrate 11.

[0241] In an embodiment, in the adjacent first encapsulation portion 151 and second encapsulation portion 152, the first sub-portion 1512 and the second sub-portion 1522 are spaced apart.

[0242] In the process of preparing the first encapsulation portion 151 and the second encapsulation portion 152, when etching is performed, the film layer between the first sub-portion 1512 and the surface of the side of the isolation structure 12 facing away from the substrate 11 is etched away, and the film layer between the second sub-portion 1522 and the first sub-portion 1512 is etched away, so that the first sub-portion 1512 and the second sub-portion 1522 have a spacing therebetween.

[0243] In the above embodiment, the orthographic projection of the first sub-portion 1512 on the substrate 11 overlaps with the orthographic projection of the second sub-portion 1522 on the substrate 11, so that the arrangement of the first sub-portion 1512 and the second sub-portion 1522 is more advantageous for the encapsulation of the isolation structure 12 during subsequent wet processes, so that the path of the etching solution or the stripping solution invading the isolation structure 12 is more complex, thereby better avoiding the warping of the suspended area of the second isolation portion 122, thereby preventing the etching solution or the stripping solution during the preparation process from eroding the sidewall of the isolation structure 12 of the display panel 10, and thereby improving the display effect and service life of the display panel 10.

[0244] In one embodiment, as shown in FIG. 1, the plurality of isolation openings 13 further include a plurality of third isolation openings 137; and a recess 131 is arranged between adjacent second isolation openings 136 and third isolation openings 137. Figures 5-8

[0245] A recess 131 is arranged on the side surface of the second isolation portion 122 of the isolation structure 12 away from the substrate 11 between adjacent second isolation openings 136 and third isolation openings 137.

[0246] In the case where the plurality of isolation openings 13 include a plurality of third isolation openings 137, the display panel 10 further includes a plurality of third light emitting devices 143 arranged in at least part of the third isolation openings 137, and the third light emitting devices 143 emit light of a color different from the light emitted by the first light emitting devices 141 and the second light emitting devices 142.

[0247] It can be understood that the third light emitting devices 143 can be arranged at part of the plurality of third isolation openings 137, or can be arranged at all of the plurality of third isolation openings 137. Specifically, the third light emitting devices 143 can emit blue light.

[0248] The display panel 10 further includes a plurality of third encapsulation portions 153 corresponding to the plurality of third light emitting devices 143.

[0249] After the third light emitting devices 143 are arranged in the third isolation openings 137, third encapsulation portions 153 corresponding to the third light emitting devices 143 are arranged on the side of the third light emitting devices 143 away from the substrate 11. There are a plurality of third light emitting devices 143, and there are also a plurality of corresponding third encapsulation portions 153.

[0250] ​In the above embodiment, the display panel 10 further comprises a third light emitting device 143 capable of emitting light of a different color from the first light emitting device 141 and the second light emitting device 142. In this way, the display panel 10 can emit light of multiple different colors, which can improve the use performance of the display panel 10. Moreover, after the third light emitting device 143 is separately prepared, a third packaging portion 153 corresponding to the third light emitting device 143 is separately prepared, the third packaging portion 153 can protect the third light emitting device 143, thereby improving the display effect and service life of the display panel 10. In addition, the recess 131 is arranged between the adjacent second isolation opening 136 and the third isolation opening 137, which can avoid the warping of the overhanging part of the second isolation portion 122 in the isolation structure 12 between the second isolation opening 136 and the third isolation opening 137, thereby preventing the etching solution or the stripping solution in the preparation process of the display panel 10 from eroding the side wall of the isolation structure 12, and preventing the etching solution or the stripping solution in the preparation process of the display panel 10 from eroding the third light emitting device 143 to form dark spots, thereby improving the display effect and service life of the display panel 10.

[0251] In one embodiment, as shown in FIG. 1, the third packaging portion 153 comprises a third main portion 1531 and a third sub-portion 1532 connected to the third main portion 1531. The third main portion 1531 covers the third light emitting device 143 and the side wall of the isolation structure 12 corresponding to the third isolation opening 137. The third sub-portion 1532 is arranged on the side of the isolation structure 12 away from the substrate 11. Figures 6-8

[0252] The third main portion 1531 in the third packaging portion 153 comprises a fifth portion 1531a and a sixth portion 1531b. The fifth portion 1531a covers the third light emitting device 143. The sixth portion 1531b is connected to the fifth portion 1531a and arranged on the side wall of the isolation structure 12 corresponding to the third isolation opening 137. That is, the sixth portion 1531b extends along the side wall of the isolation structure 12 corresponding to the third isolation opening 137 until it is connected to the third sub-portion 1532.

[0253] In one embodiment, the third sub-portion 1532 is spaced apart from the surface of the side of the isolation structure 12 away from the substrate 11.

[0254] In the process of preparing the third packaging portion 153, when etching, other film layers arranged on the side of the third sub-portion 1532 and the isolation structure 12 away from the substrate 11 are etched away, so that the third sub-portion 1532 and the surface of the side of the isolation structure 12 away from the substrate 11 have a spacing.

[0255] ​The third encapsulation part 153 provided by the above embodiment includes a third main part 1531 covering the side wall of the isolation structure 12 corresponding to the third light-emitting device 143 and the third isolation opening 137, and a third sub-part 1532 arranged on the side of the isolation structure 12 away from the substrate 11. Such third encapsulation part 153 can wrap the isolation structure 12, and can protect the isolation structure 12 to improve the service life of the display panel 10.

[0256] In one embodiment, as shown in Figures 6-8 The second encapsulation part 152 further includes a fourth sub-part 1523 connected with the second main part 1521, and the fourth sub-part 1523 is arranged on the side of the isolation structure 12 away from the substrate 11.

[0257] It can be understood that the isolation structure 12 corresponding to the second isolation opening 136 includes the isolation structure 12 close to the first isolation opening 135 and the isolation structure 12 close to the third isolation opening 137. The second sub-part 1522 in the second encapsulation part 152 is located on the side of the isolation structure 12 close to the first isolation opening 135 away from the substrate 11, and the fourth sub-part 1523 in the second encapsulation part 152 is located on the side of the isolation structure 12 close to the third isolation opening 137 away from the substrate 11.

[0258] In one embodiment, as shown in Figures 6-8 The fourth sub-part 1523 is spaced apart from the surface of the side of the isolation structure 12 away from the substrate 11.

[0259] In the process of preparing the second encapsulation part 152, when etching, other film layers provided on the side of the isolation structure 12 away from the substrate 11 in the fourth sub-part 1523 of the second encapsulation part 152 are etched away, so that the fourth sub-part 1523 and the surface of the side of the isolation structure 12 away from the substrate 11 have a spacing.

[0260] In one embodiment, as shown in Figure 7 and Figure 8 In adjacent second encapsulation part 152 and third encapsulation part 153, the orthographic projection of the third sub-part 1532 on the substrate 11 intersects with the orthographic projection of the fourth sub-part 1523 on the substrate 11.

[0261] In one embodiment, as shown in Figure 7 and Figure 8 The corresponding intersecting orthographic projection of the third sub-part 1532 and the fourth sub-part 1523 on the substrate 11 is located within the orthographic projection of the recess 131 on the substrate 11.

[0262] It can be understood that in adjacent second encapsulation part 152 and third encapsulation part 153, part of the third sub-part 1532 is located on the side of part of the fourth sub-part 1523 away from the substrate 11. It can be understood that in adjacent second encapsulation part 152 and third encapsulation part 153, part of the third sub-part 1532 is located on the side of part of the fourth sub-part 1523 away from the substrate 11. It can be understood that in adjacent second encapsulation part 152 and third encapsulation part 153, part of the third sub-part 1532 is located on the side of part of the fourth sub-part 1523 away from the substrate 11. It can be understood that in adjacent second encapsulation part 152 and third encapsulation part 153, part of the third sub-part 1532 is located on the side of part of the fourth sub-part 1523 away from the substrate 11. It can be understood that in adjacent second encapsulation part 152 and third encapsulation part 153, part of the third sub-part 1532 is located on the side of part of the fourth sub-part 1523 away from the substrate 11. It can be understood that in adjacent second encapsulation part 152 and third encapsulation part 153, part of the third sub-part 1532 is located on the side of part of the fourth sub-part 1523 away from the substrate 11. It can be understood that in adjacent second encapsulation part 152 and third encapsulation part 153, part of the third sub-part 1532 is located on the side of part of the fourth sub-part 1523 away from the substrate 11. It can be understood that in adjacent second encapsulation part 152 and third encapsulation part 153, part of the third sub-part 1532 is located on the side of part of the fourth sub-part 1523 away from the substrate 11. It can be understood that in adjacent second encapsulation part 152 and third encapsulation part 153, part of the third sub-part 1532 is located on the side of part of the fourth sub-part 1523 away from the substrate 11. It can be understood that in adjacent second encapsulation part 152 and third encapsulation part 153, part of the third sub-part 1532 is located on the side of part of the fourth sub-part 1523 away from the substrate 11. It can be understood that in adjacent second encapsulation part 152 and third encapsulation part 153, part of the third sub-part 1532 is located on the side of part of the fourth sub-part 1523 away from the substrate 11. It can be understood that in adjacent second encapsulation part 152 and third encapsulation part 153, part of the third sub-part 1532 is located on the side of part of the fourth sub-part 1523 away from the substrate 11. It can be understood that in adjacent second encapsulation part 152 and third encapsulation part 153, part of the third sub-part 1532 is located on the side of part of the fourth sub-part 1523 away from the substrate 11. It can be understood that in adjacent second encapsulation part 152 and third encapsulation part 153, part of the third sub-part 1532 is located on the side of part of the fourth sub-part 1523 away from the substrate 11. It can be understood that in adjacent second encapsulation part 152 and third encapsulation part 153, part of the third sub-part 1532 is located on the side of part of the fourth sub-part 1523 away from the substrate 11. It can be understood that in adjacent second encapsulation part 152 and third encapsulation part 153, part of the third sub-part 1532 is located on the side of part of the fourth sub-part 1523 away from the substrate 11. It can be understood that in adjacent second encapsulation part 152 and third encapsulation part 153, part of the third sub-part 1532 is located on the side of part of the fourth sub-part 1523 away from the substrate 11. It can be understood that in adjacent second encapsulation part 152 and third encapsulation part 153, part of the third sub-part 1532 is located on the side of part of the fourth sub-part 1523 away from the substrate 11. It can be understood that in adjacent second encapsulation part 152 and third encapsulation part 153, part of the third sub-part 1532 is located on the side of part of the fourth sub-part 1523 away from the substrate 11. It can be understood that in adjacent second encapsulation part 152 and third encapsulation part 153, part of the third sub-part 1532 is located on the side of part of the fourth sub-part 1523 away from the substrate 11. It can be understood that in adjacent second encapsulation part 152 and third encapsulation part 153, part of the third sub-part 1532 is located on the side of part of the fourth sub-part 1523 away from the substrate 11. It can be understood that in adjacent second encapsulation part 152 and third encapsulation part 153, part of the third sub-part 1532 is located on the side of part of the fourth sub-part 1523 away from the substrate 11. It can be understood that in adjacent second encapsulation part 152 and third encapsulation part 153, part of the third sub-part 1532 is located on the side of part of the fourth sub-part 1523 away from the substrate 11. It can be understood that in adjacent second encapsulation part 152 and third encapsulation part 153, part of the third sub-part 1532 is located on the side of part of the fourth sub-part 1523 away from the substrate 11. It can be understood that in adjacent second encapsulation part 152 and third encapsulation part 153, part of the third sub-part 1532 is located on the side of part of

[0263] That is, part of the third sub-portion 1532 is located in the fourth sub-portion 1523.

[0264] In an optional embodiment, the corresponding intersecting projections of the third sub-portion 1532 and the fourth sub-portion 1523 on the substrate 11 coincide with the projection of the recess 131 on the substrate 11.

[0265] In an embodiment, the third sub-portion 1532 and the fourth sub-portion 1523 are arranged with a spacing between them in the adjacent second packaging portion 152 and the third packaging portion 153.

[0266] In the process of preparing the second packaging portion 152 and the third packaging portion 153, when etching, the film layer between the fourth sub-portion 1523 and the surface of the isolation structure 12 away from the substrate 11 is etched away, and the film layer between the third sub-portion 1532 and the fourth sub-portion 1523 is etched away, so that the third sub-portion 1532 and the fourth sub-portion 1523 have a spacing between them.

[0267] In the above embodiment, the third sub-portion 1532 and the fourth sub-portion 1523 on the substrate 11 are intersected and overlapped, so that the arrangement of the third sub-portion 1532 and the fourth sub-portion 1523 is more optimal for the encapsulation of the isolation structure 12 in the subsequent wet process, so that the path of the etching solution or the stripping solution invading the isolation structure 12 in the preparation process of the display panel 10 is complex, thereby better avoiding the warping phenomenon of the suspended area of the second isolation portion 122, preventing the etching solution or the stripping solution in the preparation process of the display panel 10 from eroding the side wall of the isolation structure 12, and further improving the display effect and service life of the display panel 10.

[0268] In an embodiment, as shown in Figures 6-8 The first light emitting device 141, the second light emitting device 142, and the third light emitting device 143 in the display panel 10 each include a first electrode 144, a light emitting functional portion 145, and a second electrode 146 stacked along the side away from the substrate 11.

[0269] The first electrode 144 is an anode, and the second electrode 146 is a cathode. The light emitting functional portion 145 includes at least a light emitting layer, and in addition, can include one or more of a hole injection layer, a hole transport layer, an electron injection layer, an electron transport layer, a hole blocking layer, and an electron blocking layer. Alternatively, the light emitting functional portion 145 can also be a stacked light emitting layer, that is, includes at least two light emitting layers and a charge generating layer between each adjacent light emitting layer.

[0270] In an embodiment, as shown in Figure 7 and Figure 8As shown, the display panel 10 further includes a pixel defining layer 16 disposed on the side of the isolation structure 12 close to the substrate 11.

[0271] The pixel defining layer 16 encloses a plurality of pixel openings 161; the first light emitting device 141, the second light emitting device 142 and the third light emitting device 143 are at least partially disposed in the corresponding pixel openings 161.

[0272] The pixel defining layer 16 can be a multi-layer structure, and the material of the pixel defining layer 16 can be an organic insulating layer or an inorganic insulating layer. Specifically, the pixel defining layer 16 can include a first defining layer of an organic insulating layer and a second defining layer of an inorganic insulating layer.

[0273] The pixel openings 161 correspond one-to-one to the isolation openings 13, and the orthographic projection of the pixel openings 161 on the substrate 11 is located within the orthographic projection of the isolation openings 13 on the substrate 11.

[0274] Please refer to Figure 9 An embodiment of the present application provides a preparation method of a display panel, and the steps of the preparation method include:

[0275] Step 901, forming an isolation structure material layer on one side of a substrate; the isolation structure material layer includes a first isolation material layer and a second isolation material layer.

[0276] A substrate is provided, and an isolation structure material layer is evaporated on one side of the substrate; the isolation structure material layer includes a two-layer structure, i.e., a first isolation material layer and a second isolation material layer.

[0277] That is, the first isolation material layer is first evaporated on one side of the substrate, and then the second isolation material layer is evaporated on the side of the first isolation material layer away from the substrate.

[0278] Step 902, performing first patterning processing on the second isolation material layer to form a recess on the second isolation material layer.

[0279] After the first isolation material layer and the second isolation material layer are evaporated on one side of the substrate, a first mask plate is formed on the side of the second isolation material layer away from the substrate, and second patterning processing is performed on the second isolation material layer based on the first mask plate to form a recess on the second isolation material layer.

[0280] Step 903, performing second patterning processing on the isolation structure material layer to form an isolation structure on the isolation structure material layer; the isolation structure encloses a plurality of isolation openings, and at least part of adjacent isolation openings are provided with a recess;

[0281] After forming the recess on the first isolation material layer, a second mask plate is formed on the side of the second isolation material layer facing away from the substrate, and a second patterning process is performed on the isolation structure material layer based on the second mask plate, that is, corresponding patterning processes are performed on the second isolation material layer and the first isolation material layer to form an isolation structure on the isolation structure material layer. The isolation structure encloses a plurality of isolation openings, and at least part of the adjacent isolation openings are provided with the recess.

[0282] The isolation structure includes a first isolation part formed by the first isolation material layer and a second isolation part formed by the second isolation material layer, the first isolation part is arranged on the side of the second isolation part close to the substrate, and the orthographic projection of the first isolation part on the substrate is located in the orthographic projection of the second isolation part on the substrate; the recess is arranged on the side surface of the second isolation part facing away from the substrate, the orthographic projection of the recess on the substrate is located in the orthographic projection of the second isolation part on the substrate, and the edge of the recess close to the side of the isolation opening close to the edge of the second isolation part has a spacing.

[0283] The specific description of the isolation structure and the recess can refer to the specific description in the above embodiments, which will not be repeated here.

[0284] The preparation method of the display panel provided in the embodiments of the present application comprises the following steps: forming an isolation structure material layer on one side of a substrate; the isolation structure material layer comprises a first isolation material layer and a second isolation material layer; performing first patterning processing on the second isolation material layer to form pits on the second isolation material layer, and performing second patterning processing on the isolation structure material layer to form an isolation structure on the isolation structure material layer; the isolation structure comprises a plurality of isolation openings enclosed by the isolation structure, and at least part of adjacent isolation openings are provided with pits. The isolation structure comprises a first isolation part formed by the first isolation material layer and a second isolation part formed by the second isolation material layer, the first isolation part is arranged on the side of the second isolation part close to the substrate, the orthographic projection of the first isolation part on the substrate is located in the orthographic projection of the second isolation part on the substrate, and the pit is arranged on the side surface of the second isolation part away from the substrate, the orthographic projection of the pit on the substrate is located in the orthographic projection of the second isolation part on the substrate, and the edge of the pit close to the side of the isolation opening away from the substrate has a spacing with the edge of the second isolation part close to the side of the isolation opening away from the substrate. In the embodiments, the pits are arranged between at least part of adjacent isolation openings in the prepared display panel, the pits are arranged on the side surface of the second isolation part away from the substrate, and the orthographic projection of the pit on the substrate is located in the orthographic projection of the second isolation part on the substrate, and the edge of the pit close to the side of the isolation opening away from the substrate has a spacing with the edge of the second isolation part close to the side of the isolation opening away from the substrate. In this way, the thickness of the overhanging part of the top layer part (the second isolation part) of the isolation structure is greater than the thickness of the corresponding second isolation part of the pit, so that the overhanging part of the second isolation part is not prone to warping, the etching solution or stripping solution in the preparation process of the display panel can be prevented from eroding the side wall of the isolation structure and the light emitting device, the light emitting device can be prevented from failing, and therefore the display effect and service life of the display panel can be improved.

[0285] In one embodiment, the isolation opening comprises a first isolation sub-opening enclosed by the first isolation part and a second isolation sub-opening enclosed by the second isolation part, as shown in Figure 10 The second patterning processing on the isolation structure material layer to form the isolation structure on the isolation structure material layer comprises the following steps:

[0286] Step 101, performing first sub-patterning processing on the second isolation material layer to form a second isolation part provided with a second isolation sub-opening on the second isolation material layer.

[0287] A corresponding mask plate is arranged on the side of the second isolation material layer away from the substrate, and the first sub-patterning processing is performed on the second isolation material layer based on the mask plate to form the second isolation part, and the second isolation part encloses the second isolation sub-opening.

[0288] Step 102, performing second sub-patterning processing on the first isolation material layer to form a first isolation part provided with a first isolation sub-opening on the first isolation material layer.

[0289] A corresponding mask plate is arranged on one side of the substrate, and a second sub-patterning process is performed on the exposed first isolation material layer based on the mask plate to form a first isolation portion, and the first isolation portion encloses a first isolation sub-opening.

[0290] In one embodiment, the isolation structure material layer further includes a third isolation material layer, and the third isolation material layer is arranged on the side of the first isolation material layer close to the substrate. The isolation sub-opening further includes a third isolation sub-opening enclosed by a third isolation portion. After the second sub-patterning process is performed on the first isolation material layer, the preparation method further includes:

[0291] performing a third sub-patterning process on the third isolation material layer to form a third isolation portion with a third isolation sub-opening on the third isolation material layer.

[0292] A corresponding mask plate is arranged on one side of the substrate, and a third sub-patterning process is performed on the exposed third isolation material layer based on the mask plate to form a third isolation portion, and the third isolation portion encloses a third isolation sub-opening.

[0293] The description of the first isolation sub-opening, the second isolation sub-opening, and the third isolation sub-opening can refer to the specific description in the above embodiments, and will not be repeated here.

[0294] In one embodiment, the plurality of isolation sub-openings includes a plurality of first isolation sub-openings and a plurality of second isolation sub-openings. As shown in FIG. 1B, the preparation method further includes: Figure 11

[0295] Step 111, forming a first light emitting device in at least part of the first isolation sub-opening.

[0296] forming a first light emitting device material layer on the side away from the substrate, and performing a corresponding patterning process on the first light emitting device material layer to form a first light emitting device in at least part of the first isolation sub-opening.

[0297] Step 112, forming a first encapsulation portion on the side away from the substrate of the first light emitting device.

[0298] forming a first encapsulation material layer on the side away from the substrate, and performing a corresponding patterning process on the first encapsulation material layer to form a first encapsulation portion on the side away from the substrate of the first light emitting device.

[0299] Step 113, forming a second light emitting device in at least part of the second isolation sub-opening.

[0300] forming a second light emitting device material layer on the side away from the substrate, and performing a corresponding patterning process on the second light emitting device material layer to form a second light emitting device in at least part of the second isolation sub-opening. ​

[0301] Step 114, forming a second encapsulation part on the side of the second light emitting device away from the substrate.

[0302] Forming a second encapsulation material layer on the side of the substrate away from the substrate, and performing corresponding patterning treatment on the second encapsulation material layer to form a second encapsulation part on the side of the second light emitting device away from the substrate.

[0303] In one embodiment, the plurality of isolation openings further comprises a plurality of third isolation openings, and the preparation method further comprises:

[0304] Forming a third light emitting device in at least part of the third isolation openings, and forming a third encapsulation part on the side of the third light emitting device away from the substrate.

[0305] The description of the first encapsulation part, the second encapsulation part and the third encapsulation part can refer to the specific description in the above embodiments, which will not be repeated here.

[0306] In an optional embodiment, before forming the isolation structure material layer on the side of the substrate, the preparation method further comprises:

[0307] Forming a first electrode in the first light emitting device, the second light emitting device and the third light emitting device on the side of the substrate.

[0308] Forming a first electrode material layer on the side of the substrate, and performing corresponding patterning treatment on the first electrode material layer to form a plurality of first electrodes; the plurality of first electrodes correspond to the light emitting functional parts in the first light emitting device and the second light emitting device.

[0309] Forming a pixel boundary material layer on the side of the substrate, and performing corresponding patterning treatment on the pixel boundary material layer to form a pixel boundary layer, the pixel boundary layer enclosing a plurality of pixel openings.

[0310] The description of the pixel boundary layer can refer to the specific description in the above embodiments.

[0311] In one embodiment, referring to the flow chart of Figure 12 , and combining the preparation process diagram of Figures 13-16 , a preparation method of a display panel is provided, and the steps of the preparation method comprise:

[0312] Step 121, forming a first electrode material layer on the side of the substrate 11, performing corresponding patterning treatment on the first electrode material layer to form a plurality of first electrodes 144, and forming a pixel boundary material layer 1 on the side of the substrate 11; as shown in Figure 13 .

[0313] Step 122, forming an isolation structure material layer on one side of the substrate 11, and performing a first patterning process on the second isolation material layer 2 in the isolation structure material layer to form a recess 131 on the second isolation material layer; as Figure 14 shown.

[0314] Step 123, performing a second patterning process on the isolation structure material layer to form an isolation structure 12 on the isolation structure material layer, and performing a corresponding patterning process on the pixel boundary material layer to form a pixel boundary layer 16. The isolation structure 12 encloses a plurality of isolation openings 13, and at least part of the adjacent isolation openings 13 are provided with the recess 131; the pixel boundary layer encloses a plurality of pixel openings 161.

[0315] The isolation structure 12 includes a first isolation part 121 formed by the first isolation material layer, a second isolation part 122 formed by the second isolation material layer, and a third isolation part 123 formed by the third isolation material layer. The first isolation part 121 is arranged on the side of the second isolation part 122 close to the substrate 11, the third isolation part 123 is arranged on the side of the first isolation part 121 close to the substrate 11, the orthographic projection of the first isolation part 121 on the substrate 11 is located within the orthographic projection of the second isolation part 122 on the substrate 11, and the orthographic projection of the first isolation part 121 on the substrate 11 is located within the orthographic projection of the third isolation part 123 on the substrate 11; the recess 131 is arranged on the surface of the second isolation part 122 away from the substrate 11, the orthographic projection of the recess 131 on the substrate 11 is located within the orthographic projection of the second isolation part 122 on the substrate 11, and the edge of the recess 131 close to the side of the isolation opening 13 has a spacing with the edge of the second isolation part 122 close to the side of the isolation opening 13. as Figure 15 shown.

[0316] The plurality of isolation openings 13 includes a plurality of first isolation openings 135, a plurality of second isolation openings 136, and a plurality of third isolation openings 137.

[0317] Step 124, forming a light-emitting functional part 145 and a second electrode 146 at the first isolation opening 135, and forming a first encapsulation part 151 on the side of the second electrode 146 away from the substrate 11.

[0318] Step 125, forming a light-emitting functional part 145 and a second electrode 146 at the second isolation opening 136, and forming a second encapsulation part 152 on the side of the second electrode 146 away from the substrate 11.

[0319] Step 126, forming a light-emitting functional part 145 and a second electrode 146 at the third isolation opening 137, and forming a third encapsulation part 153 on the side of the second electrode 146 away from the substrate 11. as Figure 16 shown.

[0320] It should be noted that in the method for manufacturing the display panel provided in the embodiments of the present application, each film layer can be manufactured by a sputtering method, a chemical vapor deposition (CVD) method, a vacuum deposition method, a pulsed laser deposition (PLD) method, an atomic layer deposition (ALD) method, or the like. The CVD method includes a plasma enhanced chemical vapor deposition (PECVD), a laser chemical vapor deposition (LCVD), a low pressure chemical vapor deposition (LPCVD), or the like.

[0321] An embodiment of the present application provides a display device including the display panel 10 provided in the above embodiments. Alternatively, the display device can further include the display panel 10 manufactured by the method for manufacturing the display panel provided in the above embodiments.

[0322] The display device including the display panel 10 provided in the above embodiments, or the display panel manufactured by the method for manufacturing the display panel provided in the above embodiments, has all the beneficial effects of the display panel 10, or all the beneficial effects of the method for manufacturing the display panel, which will not be repeated here.

[0323] The display device can be a notebook computer, a mobile phone, a wireless device, a personal digital assistant (PDA), a handheld or portable computer, a GPS receiver / navigator, a camera, an MP4 video player, a camcorder, a game console, a watch, a clock, a calculator, a television monitor, a flat panel display, a computer monitor, an automobile display (e.g., an odometer display, etc.), a navigator, a cockpit controller and / or display, a display of a camera view (e.g., a display of a rearview camera in a vehicle), an electronic photo, an electronic billboard or sign, a projector, or the like.

[0324] In the case of using “comprise”, “have”, and “include” in the present document, another component can be added unless an explicit limiting term is used, such as “only”, “consist of”, etc. The singular form of a term can include the plural form unless the context clearly indicates otherwise, and cannot be understood as one in number.

[0325] Any combination of the technical features in the above embodiments can be made, and for the sake of brevity, not all possible combinations are described above, however, as long as the combination of the technical features does not exist in contradiction, it shall be considered within the scope of the present disclosure.

[0326] The above embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it shall not be understood as a limitation on the patent scope of the present application. It shall be pointed out that, for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, and these shall be within the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A display panel, characterized in that, include: substrate; An isolation structure is disposed on one side of the substrate, and the isolation structure encloses and forms a plurality of isolation openings; The isolation structure includes a first isolation portion and a second isolation portion. The first isolation portion is disposed on the side of the second isolation portion close to the substrate, and the orthographic projection of the first isolation portion on the substrate is located within the orthographic projection of the second isolation portion on the substrate. A recess is provided between at least some of the adjacent isolation openings, and the recess is provided on the side surface of the second isolation portion away from the substrate; The orthographic projection of the recess on the substrate is located within the orthographic projection of the second isolation portion on the substrate, and there is a gap between the edge of the recess near the isolation opening and the edge of the second isolation portion near the isolation opening.

2. The display panel according to claim 1, characterized in that, The recess is provided between any two adjacent isolation openings; Optionally, the recess is provided around the isolation opening; Optionally, the first isolation portion includes a first end close to the substrate and a second end away from the substrate, wherein the orthographic projection of the second end on the substrate is located within the orthographic projection of the first end on the substrate, and the orthographic projection of the pit on the substrate is located within the orthographic projection of the second end on the substrate; or, the orthographic projection of the pit on the substrate coincides with the orthographic projection of the second end on the substrate.

3. The display panel according to claim 1, characterized in that, The second isolation portion includes an isolation sub-portion, which is disposed around the recess; Along the thickness direction of the display panel, the size of the recess is smaller than the size of the isolation sub-part.

4. The display panel according to claim 1, characterized in that, The recess includes a first opening near the substrate and a second opening away from the substrate, wherein the orthographic projection of the first opening on the substrate lies within the orthographic projection of the second opening on the substrate.

5. The display panel according to claim 3, characterized in that, The isolation sub-part includes a first isolation sub-part, a second isolation sub-part, and a third isolation sub-part. The first isolation sub-part and the third isolation sub-part are disposed around the recess, and the second isolation sub-part is located between the first isolation sub-part and the third isolation sub-part, and is disposed on the side of the recess closer to the substrate. Optionally, along the thickness direction of the display panel, the size of the first isolation sub-part is the same as the size of the third isolation sub-part, and the size of the second isolation sub-part is smaller than the size of the first isolation sub-part or the size of the third isolation sub-part.

6. The display panel according to claim 1, characterized in that, The isolation opening includes a first isolation sub-opening formed by the first isolation portion and a second isolation sub-opening formed by the second isolation portion; The orthographic projection of the second isolator opening on the substrate is located within the orthographic projection of the first isolator opening on the substrate; Optionally, the isolation structure is made of metal.

7. The display panel according to claim 6, characterized in that, The isolation structure further includes a third isolation portion disposed on the side of the first isolation portion near the substrate; The orthographic projection of the first isolation portion on the substrate is located within the orthographic projection of the third isolation portion on the substrate; Optionally, the orthographic projection of the recess on the substrate is located within the orthographic projection range of the third isolation portion on the substrate; Optionally, the isolation opening further includes a third isolation sub-opening formed by the third isolation portion, wherein the orthographic projection of the third isolation sub-opening on the substrate is located within the orthographic projection of the first isolation sub-opening on the substrate.

8. The display panel according to any one of claims 1-7, characterized in that, The plurality of isolation openings includes a plurality of first isolation openings and a plurality of second isolation openings; The recess is provided between adjacent first and second isolation openings; The display panel further includes: a plurality of first light-emitting devices disposed in at least a portion of the first isolation opening, and a plurality of second light-emitting devices disposed in at least a portion of the second isolation opening; the first light-emitting devices and the second light-emitting devices are respectively used to emit light of different colors; The device comprises a plurality of first packaging portions and a plurality of second packaging portions, wherein each plurality of first packaging portions corresponds one-to-one with a plurality of first light-emitting devices, and each plurality of second packaging portions corresponds one-to-one with a plurality of second light-emitting devices.

9. The display panel according to claim 8, characterized in that, The first encapsulation portion includes a first main portion connected to a first sub-portion. The first main portion covers the sidewall of the isolation structure corresponding to the first light-emitting device and the first isolation opening. The first sub-portion is located on the side of the isolation structure away from the substrate. Optionally, the first sub-part is spaced apart from the surface of the isolation structure on the side opposite to the substrate; Optionally, the second encapsulation portion includes a second main portion and a second sub-portion connected to the second main portion. The second main portion covers the sidewall of the isolation structure corresponding to the second light-emitting device and the second isolation opening. The second sub-portion is disposed on the side of the isolation structure away from the substrate. Optionally, the second sub-part is spaced apart from the surface of the isolation structure on the side opposite to the substrate.

10. The display panel according to claim 9, characterized in that, In the adjacent first and second packaging portions, the orthographic projection of the first sub-part on the substrate overlaps with the orthographic projection of the second sub-part on the substrate; Optionally, the corresponding overlapping orthographic projections of the first sub-part and the second sub-part on the substrate are located within the orthographic projection of the recess on the substrate; Optionally, in adjacent first and second packaging portions, the first sub-portion and the second sub-portion are spaced apart; Optionally, in adjacent first and second packaging portions, a portion of the second sub-portion is located on the side of the portion of the first sub-portion facing away from the substrate.

11. The display panel according to claim 9, characterized in that, The plurality of isolation openings also include a plurality of third isolation openings; the recess is provided between adjacent second isolation openings and third isolation openings; The display panel further includes: a plurality of third light-emitting devices disposed at least in a portion of the third isolation opening, wherein the third light-emitting devices emit light of a different color than the first light-emitting device and the second light-emitting device; Multiple third packaging sections, each corresponding to one of the multiple third light-emitting devices.

12. The display panel according to claim 11, characterized in that, The third encapsulation portion includes a third main portion and a third sub-portion connected to the third main portion. The third main portion covers the sidewall of the isolation structure corresponding to the third light-emitting device and the third isolation opening. The third sub-portion is located on the side of the isolation structure away from the substrate. Optionally, the third sub-part is spaced apart from the surface of the isolation structure on the side opposite to the substrate.

13. The display panel according to claim 12, characterized in that, The second packaging portion further includes a fourth sub-portion connected to the second main portion, the fourth sub-portion being disposed on the side of the isolation structure opposite to the substrate; Optionally, the fourth sub-part is spaced apart from the surface of the isolation structure on the side opposite to the substrate; Optionally, in adjacent second and third packaging portions, the orthographic projection of the third sub-part on the substrate overlaps with the orthographic projection of the fourth sub-part on the substrate; Optionally, the overlapping orthographic projections of the third sub-part and the fourth sub-part on the substrate are located within the orthographic projection of the recess on the substrate; Optionally, in adjacent second and third packaging portions, the third sub-portion and the fourth sub-portion are spaced apart; Optionally, in adjacent second and third packaging portions, a portion of the third sub-portion is located on the side of the fourth sub-portion facing away from the substrate.

14. The display panel according to claim 8, characterized in that, The first light-emitting device, the second light-emitting device, and the third light-emitting device in the display panel all include a first electrode, a light-emitting functional part, and a second electrode stacked along the side away from the substrate.

15. The display panel according to claim 14, characterized in that, The display panel further includes a pixel defining layer disposed on the side of the isolation structure near the substrate; The pixel defining layer encloses and forms multiple pixel openings; the first light-emitting device, the second light-emitting device, and the third light-emitting device are at least partially disposed within the corresponding pixel openings.

16. A display panel, characterized in that, include: substrate; An isolation structure is disposed on one side of the substrate, and the isolation structure encloses and forms a plurality of isolation openings; The isolation structure includes a first isolation portion and a second isolation portion. The first isolation portion is disposed on the side of the second isolation portion close to the substrate, and the orthographic projection of the first isolation portion on the substrate is located within the orthographic projection of the second isolation portion on the substrate. A recess is provided between at least some of the adjacent isolation openings, and the recess is located on the surface of the second isolation portion opposite to the substrate. The second isolation portion includes an isolation sub-portion. Along the thickness direction of the display panel, the size of the isolation sub-portion is larger than the size of the recess, and the isolation sub-portion is disposed around the recess.

17. The display panel according to claim 16, characterized in that, The isolation sub-part includes a first isolation sub-part, a second isolation sub-part, and a third isolation sub-part. The first isolation sub-part and the third isolation sub-part are disposed around the recess, and the second isolation sub-part is located between the first isolation sub-part and the third isolation sub-part, and is disposed on the side of the recess closer to the substrate. Optionally, along the thickness direction of the display panel, the size of the first isolation sub-part is the same as the size of the third isolation sub-part, and the size of the second isolation sub-part is smaller than the size of the first isolation sub-part or the size of the third isolation sub-part.

18. The display panel according to claim 16, characterized in that, The recess includes a first opening near the substrate and a second opening away from the substrate, wherein the orthographic projection of the first opening on the substrate lies within the orthographic projection of the second opening on the substrate.

19. A method for manufacturing a display panel, characterized in that, The preparation method includes: An isolation structure material layer is formed on one side of the substrate; the isolation structure material layer includes a first isolation material layer and a second isolation material layer; The second insulating material layer is subjected to a first patterning process to form pits on the second insulating material layer; The isolation structure material layer is subjected to a second patterning process to form an isolation structure on the isolation structure material layer; the isolation structure encloses a plurality of isolation openings, and at least some of the adjacent isolation openings are provided with recesses; The isolation structure includes a first isolation portion formed by a first isolation material layer and a second isolation portion formed by a second isolation material layer. The first isolation portion is disposed on the side of the second isolation portion near the substrate, and the orthographic projection of the first isolation portion on the substrate is located within the orthographic projection of the second isolation portion on the substrate. The recess is disposed on the side surface of the second isolation portion away from the substrate, and the orthographic projection of the recess on the substrate is located within the orthographic projection of the second isolation portion on the substrate. Furthermore, there is a gap between the edge of the recess near the isolation opening and the edge of the second isolation portion near the isolation opening.

20. A display device, characterized in that, Includes the display panel as described in any one of claims 1-18.

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