Display panel and display device

Abstract

The invention relates to a display panel and a display device. The display panel comprises a substrate, a plurality of light-emitting units and a plurality of packaging parts, the isolation structure is arranged on the substrate, a plurality of isolation openings are defined by the isolation structure, and the light-emitting units are at least partially located in the corresponding isolation openings; the plurality of light-emitting units comprise a first light-emitting unit and a second light-emitting unit which are adjacent and have different light-emitting colors; the packaging part comprises a main body part and an extension part, the main body part is arranged on one side, deviating from the substrate, of the corresponding light-emitting unit and the side wall of the isolation opening, and the extension part is arranged on one side, deviating from the substrate, of the isolation structure; the plurality of packaging parts comprise a first packaging part and a second packaging part which are adjacent to each other, the first packaging part corresponds to the first light-emitting unit, the second packaging part corresponds to the second light-emitting unit, and the orthographic projection of the extension part of the first packaging part on the substrate is overlapped with the orthographic projection of the extension part of the second packaging part on the substrate. Therefore, according to the display panel and the display device provided by the invention, the dark spot problem of the display panel can be improved.

Description

Technical Field

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

[0002] Organic Light Emitting Diode (OLED) display technology is regarded as the most promising new flat panel display technology of the next generation. Compared with liquid crystal display technology, OLED display technology has the advantages of low energy consumption, low cost, self-luminescence, wide viewing angle and fast response speed. However, dark spots are prone to appear on the display panel. Summary of the invention

[0003] Based on this, it is necessary to provide a display panel and a display device that can improve the dark spot problem of the display panel.

[0004] In a first aspect, an embodiment of the present application provides a display panel, comprising: a substrate; an isolation structure, arranged on one side of the substrate, the isolation structure enclosing a plurality of isolation openings; a plurality of light-emitting units, arranged on one side of the substrate, the plurality of light-emitting units being arranged corresponding to the plurality of isolation openings, the light-emitting units being at least partially located in the corresponding isolation openings; the plurality of light-emitting units comprising a first light-emitting unit and a second light-emitting unit that are adjacent and have different light-emitting colors; a plurality of encapsulation portions, arranged corresponding to the plurality of light-emitting units, the encapsulation portion comprising a main body portion and an extension portion, the main body portion being arranged on a side of the corresponding light-emitting unit away from the substrate and a side wall of the isolation opening, the extension portion being arranged on a side of the isolation structure away from the substrate; the plurality of encapsulation portions comprising adjacent first encapsulation portions and second encapsulation portions, the first encapsulation portion being arranged corresponding to the first light-emitting unit, and the second encapsulation portion being arranged corresponding to the second light-emitting unit; wherein the orthographic projection of the extension portion of the first encapsulation portion on the substrate overlaps with the orthographic projection of the extension portion of the second encapsulation portion on the substrate.

[0005] The display panel provided by the embodiment of the present application reduces the force exerted on the extensions of the first packaging part and the second packaging part during the process by overlapping the orthographic projection of the extension of the first packaging part on the substrate with the orthographic projection of the extension of the second packaging part on the substrate, making it difficult for the first packaging part, the second packaging part and the isolation structure to be peeled off, thereby improving the packaging effect of the first packaging part and the second packaging part and alleviating the dark spot phenomenon of the display panel.

[0006] In one embodiment, the extension portion of the first packaging portion includes a first extension portion, the extension portion of the second packaging portion includes a second extension portion, the first extension portion and the second extension portion are both located on a side of the isolation structure between the first light-emitting unit and the second light-emitting unit away from the substrate, and at least a portion of the second extension portion is located on a side of the first extension portion away from the substrate;

[0007] Preferably, the extension portion of the second packaging portion further includes a third extension portion, the third extension portion is located on a side of the isolation structure between the first light-emitting unit and the second light-emitting unit away from the substrate, the second extension portion and the main body of the second packaging portion are connected through the third extension portion, and the third extension portion and the first extension portion are arranged along a first direction, and the first direction is perpendicular to the thickness direction of the substrate;

[0008] Preferably, the first light emitting unit and the second light emitting unit are arranged along a first direction;

[0009] Preferably, the thickness of the packaging portion ranges from 1 μm to 2.4 μm;

[0010] Preferably, the material of the encapsulation portion includes at least one of silicon nitride, silicon oxide and silicon oxynitride.

[0011] In one embodiment, the surface of the first extension portion facing the third extension portion is a first side surface, the surface of the first extension portion away from the substrate is a first top surface, and the surface of the first extension portion close to the substrate is a first bottom surface; the surface of the third extension portion facing the first extension portion is a second side surface, the surface of the third extension portion away from the substrate is a second top surface, and the surface of the third extension portion facing the substrate is a second bottom surface;

[0012] Preferably, the overlap size of the orthographic projection of the first extension portion on the substrate and the orthographic projection of the second extension portion on the substrate is greater than or equal to 1 μm;

[0013] Preferably, the shapes of the first side surface and the second side surface are matched.

[0014] In one embodiment, at least one of the angle between the first side surface and the first top surface and the angle between the second side surface and the second bottom surface is less than 90°;

[0015] Preferably, the first side surface is an inclined surface, and an end of the first side surface close to the substrate is inclined relative to an end away from the substrate in a direction away from the second side surface; or the first side surface is a curved surface;

[0016] Preferably, the second side surface is an inclined surface, and an end of the second side surface close to the substrate is inclined relative to an end away from the substrate toward a direction close to the first side surface; or the second side surface is a curved surface;

[0017] Preferably, the density of the first extension portion gradually increases from the substrate to the isolation structure.

[0018] In one of the embodiments, in the same packaging part, the packaging part includes a plurality of sub-packaging parts arranged along the thickness direction of the substrate, the plurality of sub-packaging parts all extend from the corresponding isolation openings to a side of the isolation structure away from the substrate, and the extension lengths of two adjacent sub-packaging parts along the first direction are different;

[0019] Preferably, in the same packaging part, the outer contours of the orthographic projections of two adjacent sub-packaging parts on the substrate are arranged at intervals;

[0020] Preferably, in the same packaging part, the densities of two adjacent sub-packaging parts are different;

[0021] Preferably, in the same packaging part, the number of sub-packaging parts is two;

[0022] Preferably, the thickness of the sub-packaging portion is in the range of 0.4 μm-1.2 μm.

[0023] In one embodiment, in the same package part, one of the plurality of sub-package parts that is farthest from the substrate is configured as an outer sub-package part; in the second package part, an extension length of the outer sub-package part along the first direction is greater than an extension length of the remaining sub-package parts along the first direction;

[0024] Preferably, in the second packaging part, the density of the outer sub-packaging parts is greater than the density of the remaining sub-packaging parts.

[0025] In one embodiment, in the same package part, one of the multiple sub-package parts closest to the substrate is configured as an inner sub-package part; the inner sub-package part of at least a portion of the second extension part is located on a side of the first extension part away from the substrate;

[0026] Preferably, a portion of the surface of the inner sub-packaging portion of the second packaging portion is configured as the second side surface.

[0027] In one of the embodiments, in the first extension portion, the extension lengths of the plurality of sub-encapsulation portions along the first direction decrease sequentially from the substrate to the isolation structure;

[0028] Preferably, in the first packaging part, the density of the plurality of sub-packaging parts decreases in sequence from the substrate to the isolation structure;

[0029] Preferably, at least one of the first side surface and the second side surface is a step surface;

[0030] Preferably, the first side surface includes a first sub-surface and a plurality of second sub-surfaces, two adjacent second sub-surfaces are connected via the first sub-surface, and adjacent first sub-surfaces and second sub-surfaces intersect; the second side surface includes a third sub-surface and a plurality of fourth sub-surfaces, two adjacent fourth sub-surfaces are connected via the third sub-surface, and adjacent third sub-surfaces and fourth sub-surfaces intersect; the first sub-surface and the third sub-surface are arranged correspondingly, the third sub-surface is located on a side of the corresponding first sub-surface facing away from the substrate, the second sub-surface and the fourth sub-surface are arranged correspondingly, and the second sub-surface and the corresponding fourth sub-surface are arranged relatively along the first direction;

[0031] Preferably, at least one of the first sub-surface and the third sub-surface is parallel to the substrate;

[0032] Preferably, at least one of the second sub-surface and the fourth sub-surface is perpendicular to the substrate.

[0033] In one of the embodiments, in the first extension portion, the extension lengths of the plurality of sub-encapsulation portions along the first direction increase sequentially from the substrate to the isolation structure;

[0034] Preferably, in the first packaging part, the density of the plurality of sub-packaging parts increases sequentially from the substrate to the isolation structure;

[0035] Preferably, a first protrusion is provided on the second side surface, the first protrusion and the second extension portion are arranged at intervals along the thickness direction of the substrate, and a portion of the first extension portion is inserted between the second extension portion and the first protrusion;

[0036] Preferably, the first side surface contacts a surface of the first protrusion facing away from the substrate;

[0037] Preferably, the first side surface contacts a surface of the first protrusion that is away from the second side surface.

[0038] In one of the embodiments, in the first extension portion, the plurality of sub-encapsulation portions include a first sub-encapsulation portion and a plurality of second sub-encapsulation portions, a first sub-encapsulation portion is disposed between two adjacent second sub-encapsulation portions, and an extension length of the first sub-encapsulation portion along the first direction is less than an extension length of the second sub-encapsulation portion along the first direction;

[0039] Preferably, the density of the first sub-package portion is less than the density of the second sub-package portion;

[0040] Preferably, the first sub-encapsulation part and the two adjacent second sub-encapsulation parts together enclose a groove, the second side surface is provided with a second protrusion, the second protrusion is arranged corresponding to the groove, and the second protrusion is inserted into the corresponding groove;

[0041] Preferably, the groove sidewall on the side of the groove away from the substrate includes a first groove sidewall, and in the corresponding second protrusion and groove, at least one of the groove bottom wall and the first groove sidewall of the groove contacts the second protrusion.

[0042] In one embodiment, the angle between the first side surface and the first top surface is less than 90°, and an end of the first side surface away from the substrate contacts an end of the second side surface away from the substrate;

[0043] Preferably, an end of the first side surface close to the substrate is spaced apart from an end of the second side surface close to the substrate.

[0044] In one embodiment, the light-emitting unit includes a first electrode, a light-emitting functional component, and a second electrode arranged in sequence in a direction away from the substrate;

[0045] Preferably, a first gap is provided between the first top surface and the second extension portion, and the second electrode and the light-emitting functional component are both located outside the first gap;

[0046] Preferably, there is a second gap between the second bottom surface and the isolation structure, and at least one of the second electrode and the light-emitting functional component is located in the second gap;

[0047] Preferably, a third gap is provided between at least a portion of the first side surface and at least a portion of the second side surface, and at least one of the second electrode and the light-emitting functional component is located in the third gap;

[0048] Preferably, a fourth gap is provided between the first bottom surface and the isolation structure, and at least one of the second electrode and the light-emitting functional component is located outside at least a portion of the fourth gap.

[0049] In one embodiment, the isolation structure includes a first isolation portion and a blocking portion, the first isolation portion is located on a side of the blocking portion facing the substrate, and an orthographic projection of the first isolation portion on the substrate is located within an orthographic projection of the blocking portion on the substrate;

[0050] Preferably, the orthographic projection of at least one of the first side surface and the second side surface on the substrate is located within the orthographic projection of the first isolation portion on the substrate;

[0051] Preferably, the isolation structure comprises a second isolation portion, the second isolation portion is located on a side of the first isolation portion away from the blocking portion, 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.

[0052] In a second aspect, an embodiment of the present application provides a display panel, comprising: a substrate; an isolation structure, which is arranged on one side of the substrate, and the isolation structure encloses a plurality of isolation openings; a plurality of light-emitting units, which are arranged on one side of the substrate, and the plurality of light-emitting units are arranged corresponding to the plurality of isolation openings, and the light-emitting units are at least partially located in the corresponding isolation openings; the plurality of light-emitting units include a third light-emitting unit, a fourth light-emitting unit, and a fifth light-emitting unit with different light-emitting colors; a plurality of encapsulation parts, which are arranged corresponding to the plurality of light-emitting units, and the encapsulation part includes a main body part and an extension part, the main body part is arranged on the side of the corresponding light-emitting unit away from the substrate and the side wall of the isolation opening, and the extension part is arranged on the side of the isolation structure away from the substrate; the plurality of encapsulation parts include a third encapsulation part, a fourth encapsulation part, and a fifth encapsulation part, the third encapsulation part is arranged corresponding to the third light-emitting unit, the fourth encapsulation part is arranged corresponding to the fourth light-emitting unit, and the fifth encapsulation part is arranged corresponding to the fifth light-emitting unit; wherein, in adjacent third encapsulation parts and fourth encapsulation parts, the orthographic projection of the extension part of the third encapsulation part on the substrate overlaps with the orthographic projection of the extension part of the fourth encapsulation part on the substrate.

[0053] The display panel provided by the embodiment of the present application reduces the force exerted on the extension parts of the third packaging part and the fourth packaging part in the process technology by overlapping the orthographic projection of the extension part of the third packaging part on the substrate with the orthographic projection of the extension part of the fourth packaging part on the substrate in adjacent third packaging parts and fourth packaging parts, so that the third packaging part, the fourth packaging part and the isolation structure are not easily peeled off, thereby improving the packaging effect of the third packaging part and the fourth packaging part and alleviating the dark spot phenomenon of the display panel.

[0054] In one embodiment, in the adjacent fourth encapsulation portion and the fifth encapsulation portion, an orthographic projection of an extension portion of the fourth encapsulation portion on the substrate overlaps with an orthographic projection of an extension portion of the fifth encapsulation portion on the substrate;

[0055] Preferably, in the adjacent third encapsulation part and the fifth encapsulation part, the orthographic projection of the extension part of the third encapsulation part on the substrate overlaps with the orthographic projection of the extension part of the fifth encapsulation part on the substrate;

[0056] Preferably, in the adjacent third encapsulation portion and the fourth encapsulation portion, the extension portion of the fourth encapsulation portion is at least partially located on a side of the third encapsulation portion facing away from the substrate;

[0057] Preferably, in the adjacent fourth encapsulation portion and the fifth encapsulation portion, the extension portion of the fifth encapsulation portion is at least partially located on a side of the fourth encapsulation portion facing away from the substrate;

[0058] Preferably, in the adjacent third encapsulation portion and the fifth encapsulation portion, the extension portion of the fifth encapsulation portion is at least partially located on a side of the third encapsulation portion facing away from the substrate.

[0059] In a third aspect, an embodiment of the present application provides a display device, comprising the display panel in the first aspect or the second aspect.

[0060] The display device provided in the embodiment of the present application includes a display panel. By overlapping the orthographic projection of the extension part of the first packaging part on the substrate with the orthographic projection of the extension part of the second packaging part on the substrate, the force applied to the extension parts of the first packaging part and the second packaging part during the manufacturing process is reduced, so that the first packaging part, the second packaging part and the isolation structure are not easily peeled off, thereby improving the packaging effect of the first packaging part and the second packaging part and alleviating the dark spot phenomenon of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] In order to more clearly illustrate the technical solutions in the embodiments or exemplary embodiments of the present application, the drawings required for use in the description of the embodiments or exemplary embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0062] Figure 1 A cross-sectional view of a display panel provided in an embodiment of the present application.

[0063] Figure 2 A schematic diagram of the structure after the isolation structure is formed according to an embodiment of the present application.

[0064] Figure 3 A schematic diagram of the structure after the first packaging part is formed according to an embodiment of the present application.

[0065] Figure 4a A schematic diagram of the structure after the second packaging part is formed according to an embodiment of the present application.

[0066] Figure 4b A schematic diagram of the structure after the second packaging part is formed according to an embodiment of the present application.

[0067] Figure 4c A schematic diagram of the structure after the second packaging part is formed according to an embodiment of the present application.

[0068] Figure 5 Another structural schematic diagram after the first packaging part is formed according to an embodiment of the present application.

[0069] Figure 6 Another structural schematic diagram after the second packaging part is formed according to an embodiment of the present application.

[0070] Figure 7 A schematic diagram of the structure in which the packaging part provided in the embodiment of the present application includes multiple sub-packaging parts.

[0071] Figure 8 Another structural schematic diagram of the packaging part provided in the embodiment of the present application includes multiple sub-packaging parts.

[0072] Fig. 9 A top view of the light-emitting unit and the isolation structure provided in an embodiment of the present application.

[0073] Description of reference numerals:

[0074] 100, display panel; 110, substrate; 120, isolation structure; 121, first isolation part; 122, second isolation part; 123, blocking part; 124, isolation opening; 130, light-emitting unit; 130a, first light-emitting unit; 130b, second light-emitting unit; 130c, third light-emitting unit; 130d, fourth light-emitting unit; 130e, fifth light-emitting unit; 131, first electrode; 132, second electrode; 133, light-emitting functional part; 150, packaging part; 150a, first packaging part; 150b, second packaging part; 150c, third packaging part; 150d, fourth packaging part; 150e, fifth packaging part; 151, main body; 152, extension part; 1521, first extension part; 15 22. second extension portion; 1523. third extension portion; 1531. first top surface; 1532. second top surface; 1541. first bottom surface; 1542. second bottom surface; 1551. first side surface; 1552. second side surface; 1561. first sub-surface; 1562. second sub-surface; 1563. third sub-surface; 1564. fourth sub-surface; 157. sub-packaging portion; 1571. first sub-packaging portion; 1572. second sub-packaging portion; 161. first protrusion; 162. second protrusion; 163. groove; 1631. first groove side wall; 170. pixel defining layer; 171. pixel opening; 181. first gap; 182. second gap; 183. third gap; 184. fourth gap; X. first direction. DETAILED DESCRIPTION

[0075] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0076] It should be understood that although the terms "first", "second", etc. may be used herein to describe various elements, they do not represent any order, quantity or importance, but are only used to distinguish different components. These terms are only used to distinguish one element from another element. For example, without departing from the scope of the present application, the first element may be referred to as the second element, and similarly, the second element may be referred to as the first element. "Including" or "comprising" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects.

[0077] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0078] The composition, preparation and other contents of the isolation structure mentioned in the embodiments of this application are described in patents CN118251982A, 202410864269.8, PCT / CN2024 / 098407, PCT / CN2024 / 102783, PCT / CN2024 / 098217, PCT / CN2024 / 099419, and PCT / CN2024 / 099072 for reference.

[0079] Organic Light Emitting Diode (OLED) display technology is regarded as the most promising new flat panel display technology of the next generation. Compared with liquid crystal display technology, OLED display technology has the advantages of low energy consumption, low cost, self-luminescence, wide viewing angle and fast response speed.

[0080] In the process of realizing the present application, the inventors found the following problems in the related art: the display panel may include a substrate and an isolation structure arranged on the substrate, a plurality of light-emitting units and a plurality of packaging parts, the isolation structure defines a plurality of isolation openings, and the light-emitting units are at least partially arranged in the isolation openings. The packaging part is arranged on the side of the corresponding light-emitting unit facing away from the substrate, and extends to the side of the isolation structure facing away from the substrate. The packaging part includes an extension part, the extension part is located on the side of the isolation structure facing away from the substrate, and there is a gap between the surface of the extension part facing the substrate and the surface of the isolation structure facing away from the substrate, that is, the extension part is a suspended design.

[0081] However, in the manufacturing process after the encapsulation part is prepared, a force is exerted on the extension part, which makes it easy for the extension part and the isolation structure to peel off, thereby damaging the light-emitting unit and causing dark spots on the display panel.

[0082] In view of at least one of the above problems, embodiments of the present application provide a display panel and a display device, which can improve the dark spot phenomenon of the display panel.

[0083] The following will be combined Figure 1-Figure 9 The display device provided in the embodiment of the present application is described.

[0084] The embodiment of the present application provides a display device, which may include a display panel 100. The display device may be an electronic paper, a mobile phone, a tablet computer, a television, a display, a laptop computer, a digital photo frame, a smart bracelet, a smart watch, a super personal computer, a navigator, 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 clock, a calculator, a television monitor, a computer monitor, a car display (e.g., an odometer display, etc.), a cockpit controller and / or display, a display of a camera view (e.g., a display of a rear-view camera in a vehicle), an electronic billboard or sign, a projector, or other mobile or fixed terminals.

[0085] Exemplarily, the display panel 100 may be an organic light-emitting diode (OLED) display panel, a micro organic light-emitting diode (Micro OLED) display panel, a light emitting diode (LED) display panel, a quantum dot light emitting diode (QLED) display panel, a mini light emitting diode (Mini LED) display panel, a micro light emitting diode (Micro LED) display panel, or a liquid crystal (LCD) display panel, etc. The embodiment of the present application is described by taking an OLED display panel as an example.

[0086] The display panel 100 provided in the embodiment of the present application is described below.

[0087] See also Figure 1 The embodiment of the present application provides a display panel 100, and the display panel 100 may include a substrate 110. The substrate 110 may provide support for other film layers that are subsequently arranged.

[0088] In some embodiments, see Figure 1 and Fig. 9 The display panel 100 may include an isolation structure 120, and the isolation structure 120 may be disposed on one side of the substrate 110. The isolation structure 120 may define a plurality of isolation openings 124, and the plurality of isolation openings 124 may be disposed at intervals.

[0089] In some embodiments, see Figure 1 The display panel 100 includes a light emitting unit 130, and the light emitting unit 130 is located on the side of the substrate 110 facing the isolation structure 120. There can be multiple light emitting units 130, and the multiple light emitting units 130 are arranged at intervals. For example, the multiple light emitting units 130 can be arranged in an array. The light emitting units 130 and the isolation openings 124 can be arranged correspondingly, and at least a portion of the light emitting units 130 can be located in the corresponding isolation openings 124. The embodiment of the present application is described by taking as an example that at least a portion of a light emitting unit 130 can be arranged in an isolation opening 124.

[0090] In the embodiment of the present application, the corresponding arrangement of A and B may refer to: one A is correspondingly arranged with at least one B, or one B is correspondingly arranged with at least one A. The embodiment of the present application is described by taking the corresponding arrangement of one A and one B as an example. For example, the light-emitting unit 130 and the isolation opening 124 are correspondingly arranged, one light-emitting unit 130 and at least one isolation opening 124 are correspondingly arranged, or one isolation opening 124 and at least one light-emitting unit 130 are correspondingly arranged.

[0091] For example, see Figure 1 The multiple light-emitting units 130 include a third light-emitting unit 130c, a fourth light-emitting unit 130d and a fifth light-emitting unit 130e with different light-emitting colors. For example, the third light-emitting unit 130c, the fourth light-emitting unit 130d and the fifth light-emitting unit 130e can be multiple.

[0092] For example, the third light emitting unit 130c, the fourth light emitting unit 130d and the fifth light emitting unit 130e may be a red light emitting unit, a green light emitting unit and a blue light emitting unit, respectively. In some other examples, the plurality of light emitting units 130 may further include a white light emitting unit.

[0093] Illustratively, any two of the third light emitting unit 130c, the fourth light emitting unit 130d, and the fifth light emitting unit 130e may be disposed adjacent to each other.

[0094] In some embodiments, see Figure 1The display panel 100 includes a plurality of packaging parts 150, the packaging parts 150 are arranged corresponding to the light-emitting units 130, the packaging parts 150 are arranged on the side of the corresponding light-emitting units 130 away from the substrate 110, the packaging parts 150 are arranged corresponding to the isolation openings 124, the packaging parts 150 are located on the sidewalls of the corresponding isolation openings 124, and the packaging parts 150 extend to the side of the isolation structure 120 away from the substrate 110, so as to achieve a better packaging effect for the light-emitting units 130. It can be understood that the packaging parts 150 are arranged corresponding to the light-emitting units 130, and one light-emitting unit 130 and at least one packaging part 150 can be arranged correspondingly, or one packaging part 150 and at least one light-emitting unit 130 can be arranged correspondingly.

[0095] For example, see Figure 1 The packaging portion 150 includes a main body portion 151 and an extension portion 152 . The main body portion 151 is disposed on a side of the corresponding light emitting unit 130 away from the substrate 110 and a side wall of the isolation opening 124 . The extension portion 152 is disposed on a side of the isolation structure 120 away from the substrate 110 .

[0096] Exemplarily, the plurality of encapsulation parts 150 include a third encapsulation part 150c, a fourth encapsulation part 150d, and a fifth encapsulation part 150e. The third encapsulation part 150c is arranged corresponding to the third light-emitting unit 130c, and the third encapsulation part 150c is arranged on the side of the third light-emitting unit 130c away from the substrate 110, and extends to the side of the isolation structure 120 away from the substrate 110. The fourth encapsulation part 150d is arranged corresponding to the fourth light-emitting unit 130d, and the fourth encapsulation part 150d is arranged on the side of the fourth light-emitting unit 130d away from the substrate 110, and extends to the side of the isolation structure 120 away from the substrate 110. The fifth encapsulation part 150e is arranged corresponding to the fifth light-emitting unit 130e, and the fifth encapsulation part 150e is arranged on the side of the fifth light-emitting unit 130e away from the substrate 110, and extends to the side of the isolation structure 120 away from the substrate 110.

[0097] Illustratively, any two of the third encapsulation portion 150c, the fourth encapsulation portion 150d, and the fifth encapsulation portion 150e may be disposed adjacent to each other.

[0098] Illustratively, the third encapsulation part 150c, the fourth encapsulation part 150d and the fifth encapsulation part 150e may be prepared in steps, for example, the third encapsulation part 150c is prepared first, then the fourth encapsulation part 150d is prepared, and then the fifth encapsulation part 150e is prepared.

[0099] Exemplarily, in the adjacent third packaging part 150c and the fourth packaging part 150d, the orthographic projection of the extension part 152 of the third packaging part 150c on the substrate 110 overlaps with the orthographic projection of the extension part 152 of the fourth packaging part 150d on the substrate 110, so that one of the extension part 152 of the third packaging part 150c and the extension part 152 of the fourth packaging part 150d covers the other, thereby extending the time for the reagents (and water vapor, etc.) of the subsequent wet process to invade the gap between the third packaging part 150c and the isolation structure 120 and the gap between the fourth packaging part 150d and the isolation structure 120. The path is formed and the path is relatively tortuous, so that the reagent is not easy to invade the gap between the third packaging part 150c and the isolation structure 120, and the gap between the fourth packaging part 150d and the isolation structure 120, thereby reducing the force exerted by the wet process on the extension part 152 of the third packaging part 150c and the fourth packaging part 150d, making it difficult for the third packaging part 150c and the isolation structure 120, and the fourth packaging part 150d and the isolation structure 120 to peel off, thereby improving the packaging effect of the third packaging part 150c and the fourth packaging part 150d, and alleviating the dark spot phenomenon of the display panel 100.

[0100] For example, in the adjacent fourth encapsulation part 150d and the fifth encapsulation part 150e, the orthographic projection of the extension part 152 of the fourth encapsulation part 150d on the substrate 110 overlaps with the orthographic projection of the extension part 152 of the fifth encapsulation part 150e on the substrate 110, so that the fourth encapsulation part 150d and the isolation structure 120, as well as the fifth encapsulation part 150e and the isolation structure 120 are not easily peeled off, thereby improving the encapsulation effect of the fourth encapsulation part 150d and the fifth encapsulation part 150e, and alleviating the dark spot phenomenon of the display panel 100. The principle has been explained and will not be repeated here.

[0101] For example, in the adjacent third packaging part 150c and the fifth packaging part 150e, the orthographic projection of the extension part 152 of the third packaging part 150c on the substrate 110 overlaps with the orthographic projection of the extension part 152 of the fifth packaging part 150e on the substrate 110, so that the third packaging part 150c and the isolation structure 120, as well as the fifth packaging part 150e and the isolation structure 120 are not easy to peel off, thereby improving the packaging effect of the third packaging part 150c and the fifth packaging part 150e, and alleviating the dark spot phenomenon of the display panel 100. The principle has been explained and will not be repeated here.

[0102] In the embodiment where the third encapsulation part 150c is prepared before the fourth encapsulation part 150d, in the adjacent third encapsulation part 150c and fourth encapsulation part 150d, the extension part 152 of the fourth encapsulation part 150d is at least partially located on the side of the third encapsulation part 150c facing away from the substrate 110.

[0103] In the embodiment where the fourth encapsulation part 150d is prepared before the fifth encapsulation part 150e, in the adjacent fourth encapsulation part 150d and the fifth encapsulation part 150e, the extension part 152 of the fifth encapsulation part 150e is at least partially located on the side of the fourth encapsulation part 150d away from the substrate 110. The extension part 152 of the fourth encapsulation part 150d may include a first sub-part and a second sub-part, the first sub-part covers the side of the third encapsulation part 150c away from the substrate 110, the second sub-part is located on the side of the extension part 152 of the fifth encapsulation part 150e facing the substrate 110, and the distance between the surface of the first sub-part on the side away from the substrate 110 and the substrate 110 is greater than the distance between the surface of the second sub-part on the side away from the substrate 110 and the substrate 110.

[0104] In the embodiment where the third encapsulation part 150c is prepared before the fifth encapsulation part 150e, in the adjacent third encapsulation part 150c and fifth encapsulation part 150e, the extension part 152 of the fifth encapsulation part 150e is at least partially located on the side of the third encapsulation part 150c facing away from the substrate 110.

[0105] In some embodiments, any two of the third light-emitting unit 130c, the fourth light-emitting unit 130d, and the fifth light-emitting unit 130e may be arranged adjacent to each other and form the first light-emitting unit 130a and the second light-emitting unit 130b, respectively. Equivalently, the two light-emitting units 130 arranged adjacent to each other and having different colors are the first light-emitting unit 130a and the second light-emitting unit 130b, respectively. The first light-emitting unit 130a and the second light-emitting unit 130b may be the third light-emitting unit 130c and the fourth light-emitting unit 130d, respectively, or the first light-emitting unit 130a and the second light-emitting unit 130b may be the third light-emitting unit 130c and the fifth light-emitting unit 130e, respectively, or the first light-emitting unit 130a and the second light-emitting unit 130b may be the fourth light-emitting unit 130d and the fifth light-emitting unit 130e, respectively.

[0106] Exemplarily, the plurality of encapsulation parts 150 include adjacent first encapsulation parts 150a and second encapsulation parts 150b, wherein the first encapsulation part 150a is disposed correspondingly to the first light-emitting unit 130a, and the first encapsulation part 150a is located on a side of the first light-emitting unit 130a away from the substrate 110, and extends to a side of the isolation structure 120 away from the substrate 110. The second encapsulation part 150b is disposed correspondingly to the second light-emitting unit 130b, and the second encapsulation part 150b is located on a side of the second light-emitting unit 130b away from the substrate 110, and extends to a side of the isolation structure 120 away from the substrate 110.

[0107] The first packaging part 150a and the second packaging part 150b provided in the embodiment of the present application are described below.

[0108] In some embodiments, see Figure 4aThe orthographic projection of the extension portion 152 of the first packaging portion 150a on the substrate 110 overlaps with the orthographic projection of the extension portion 152 of the second packaging portion 150b on the substrate 110, making it difficult for the first packaging portion 150a and the isolation structure 120, as well as the second packaging portion 150b and the isolation structure 120 to peel off, thereby improving the packaging effect of the first packaging portion 150a and the second packaging portion 150b and alleviating the dark spot phenomenon of the display panel 100. The principle has been explained and will not be repeated here.

[0109] For example, see Figure 4a The first light emitting unit 130 a and the second light emitting unit 130 b are arranged along a first direction X, and the first direction X is perpendicular to the thickness direction (ie, direction Z) of the substrate 110 .

[0110] For example, see Figure 2 , an isolation structure 120 may be formed first, see Figure 3 and 5 Then, the light-emitting functional part 133, the second electrode 132 and the first encapsulation part 150a of the first light-emitting unit 130a are formed. Figure 4a and Figure 6 , and then the light emitting function part 133 , the second electrode 132 and the second encapsulation part 150 b of the second light emitting unit 130 b are formed.

[0111] In some embodiments, see Figure 4a The extension portion 152 of the first packaging portion 150a includes a first extension portion 1521, and the extension portion 152 of the second packaging portion 150b includes a second extension portion 1522. The first extension portion 1521 and the second extension portion 1522 are both located on the side of the isolation structure 120 between the first light-emitting unit 130a and the second light-emitting unit 130b that is away from the substrate 110. At least part of the second extension portion 1522 is located on the side of the first extension portion 1521 that is away from the substrate 110, so that the first packaging portion 150a and the isolation structure 120, and the second packaging portion 150b and the isolation structure 120 are not easy to peel off, thereby improving the packaging effect of the first packaging portion 150a and the second packaging portion 150b, and alleviating the dark spot phenomenon of the display panel 100.

[0112] Exemplarily, the overlap size of the orthographic projection of the first extension portion 1521 on the substrate 110 and the orthographic projection of the second extension portion 1522 on the substrate 110 is greater than or equal to 1 μm, so that the overlap size of the first extension portion 1521 and the second extension portion 1522 is large, so that the first extension portion 1521 and the second extension portion 1522 are not easy to peel off, and then the first encapsulation portion 150a and the isolation structure 120, and the second encapsulation portion 150b and the isolation structure 120 are not easy to peel off, thereby improving the encapsulation effect of the first encapsulation portion 150a and the second encapsulation portion 150b, and alleviating the dark spot phenomenon of the display panel 100. For example, the overlap size is 1 μm, 1.5 μm, 2 μm, 2.5 μm or any value greater than 1 μm.

[0113] In some embodiments, see Figure 4a The extension portion 152 of the second packaging portion 150b also includes a third extension portion 1523, which is located on the side of the isolation structure 120 between the first light-emitting unit 130a and the second light-emitting unit 130b that is away from the substrate 110. The third extension portion 1523 is located between the second extension portion 1522 and the main body 151 of the second packaging portion 150b. The second extension portion 1522 and the main body 151 of the second packaging portion 150b are connected through the third extension portion 1523, and the third extension portion 1523 and the first extension portion 1521 are arranged along the first direction X.

[0114] Exemplarily, the thickness of the encapsulation part 150 ranges from 1 μm to 2.4 μm, so that the thickness of the encapsulation part 150 can be prevented from being too small to meet the requirement of water vapor isolation, and the thickness of the encapsulation part 150 can be prevented from being too large, which can shorten the preparation time, improve production efficiency, and facilitate the thinning of the display panel 100. For example, the thickness of the encapsulation part 150 can be 1 μm, 1.5 μm, 2 μm, 2.4 μm, or any value between 1 μm and 2.4 μm.

[0115] Exemplarily, the material of the packaging part 150 is an inorganic material, and the packaging part 150 formed of the inorganic material has a better insulation effect against water vapor.

[0116] Exemplarily, the material of the encapsulation portion 150 includes at least one of silicon nitride, silicon oxide, and silicon oxynitride.

[0117] For example, see Figure 4aThe surface of the first extension portion 1521 facing the third extension portion 1523 is a first side surface 1551, the surface of the first extension portion 1521 away from the substrate 110 is a first top surface 1531, and the surface of the first extension portion 1521 close to the substrate 110 is a first bottom surface 1541. The surface of the third extension portion 1523 facing the first extension portion 1521 is a second side surface 1552, the surface of the third extension portion 1523 away from the substrate 110 is a second top surface 1532, and the surface of the third extension portion 1523 facing the substrate 110 is a second bottom surface 1542.

[0118] Exemplarily, the shapes of the first side surface 1551 and the second side surface 1552 are adapted to each other, which is beneficial to reducing the size of the third gap 183 between the first side surface 1551 and the second side surface 1552 along the first direction X, so that the reagents of the wet process are not easy to invade the third gap 183, thereby reducing the force generated by the wet process on the extension portion 152 of the first packaging portion 150a and the second packaging portion 150b, improving the packaging effect of the first packaging portion 150a and the second packaging portion 150b, and alleviating the dark spot phenomenon of the display panel 100.

[0119] In some embodiments, see Figure 4a At least one of the angle between the first side surface 1551 and the first top surface 1531 and the angle between the second side surface 1552 and the second bottom surface 1542 is less than 90°. For example, the angle between the first side surface 1551 and the first top surface 1531 and the angle between the second side surface 1552 and the second bottom surface 1542 are both less than 90°, so that the reagents of the wet process are not easy to invade the third gap 183 from the first gap 181, thereby reducing the force generated by the wet process on the extension portion 152 of the first packaging portion 150a and the second packaging portion 150b, improving the packaging effect of the first packaging portion 150a and the second packaging portion 150b, and alleviating the dark spot phenomenon of the display panel 100. In addition, the first extension portion 1521 is embedded between the third extension portion 1523 and the second extension portion 1522, so that the extension portion 152 of the first packaging portion 150a and the extension portion 152 of the second packaging portion 150b are limited to each other along the thickness direction of the substrate 110, thereby better alleviating the peeling phenomenon between the extension portion 152 of the first packaging portion 150a and the second packaging portion 150b and the isolation structure 120.

[0120] For example, see Figure 4a The first side surface 1551 is an inclined surface, and the end of the first side surface 1551 close to the substrate 110 is inclined relative to the end away from the substrate 110 in a direction away from the second side surface 1552, thereby making the structure of the first side surface 1551 relatively simple, which is conducive to reducing the difficulty of preparing the first side surface 1551.

[0121] Alternatively, the first side surface 1551 is a curved surface, which is conducive to increasing the extension length of the third gap 183, so that the reagents of the wet process are not easy to invade the fourth gap 184 and the second gap 182 from the third gap 183, thereby improving the encapsulation effect of the first encapsulation part 150a and the second encapsulation part 150b, and alleviating the dark spot phenomenon of the display panel 100. Wherein, when the first side surface 1551 is a curved surface, the first side surface 1551 has a virtual tangent plane (the virtual tangent plane is not a real surface), the first side surface 1551 is tangent to the virtual tangent plane, and the angle between the first side surface 1551 and the first top surface 1531 is the angle between the virtual tangent plane and the first top surface 1531.

[0122] Exemplarily, the second side surface 1552 is an inclined surface, and the end of the second side surface 1552 close to the substrate 110 is inclined relative to the end away from the substrate 110 toward the direction close to the first side surface 1551, so that the structure of the second side surface 1552 is relatively simple, which is conducive to reducing the difficulty of preparing the second side surface 1552. Alternatively, the second side surface 1552 is a curved surface, which is conducive to increasing the extension length of the third gap 183, so that the reagents of the wet process are not easy to invade the fourth gap 184 and the second gap 182 from the third gap 183, thereby improving the packaging effect of the first packaging part 150a and the second packaging part 150b, and alleviating the dark spot phenomenon of the display panel 100.

[0123] Exemplarily, the density of the first extension portion 1521 gradually increases from the substrate 110 to the isolation structure 120, so that the density of the first extension portion 1521 gradually increases from the substrate 110 to the isolation structure 120, so that the etching rate of the first extension portion 1521 gradually decreases from the substrate 110 to the isolation structure 120, so as to achieve that the angle between the first side surface 1551 and the first top surface 1531, and the angle between the second side surface 1552 and the second bottom surface 1542 are both less than 90. For example, the density variation trend of the first encapsulation portion 150a along the thickness direction of the substrate 110 can be controlled by controlling the film forming speed of the first encapsulation portion 150a (for example, gradual film forming), so as to achieve that the density of the first extension portion 1521 gradually increases from the substrate 110 to the isolation structure 120.

[0124] In some other embodiments, see Figure 4c The angle between the first side surface 1551 and the first top surface 1531 is less than 90°, which alleviates the dark spot phenomenon of the display panel 100. The principle has been explained and will not be repeated here.

[0125] Exemplarily, the end of the first side 1551 away from the substrate 110 and the end of the second side 1552 away from the substrate 110 can be in contact, and the end of the first side 1551 close to the substrate 110 and the end of the second side 1552 close to the substrate 110 are spaced apart to form a third gap 183. In this way, the end of the first side 1551 away from the substrate 110 and the end of the second side 1552 away from the substrate 110 are in contact with each other, thereby blocking the third gap 183, preventing the reagents of the wet process from invading the fourth gap 184 and the second gap 182, thereby better alleviating the peeling phenomenon between the first packaging part 150a, the second packaging part 150b and the isolation structure 120. At this time, the light-emitting functional parts 133 and the second electrodes 132 in the third gap 183 and the second gap 182 are both retained.

[0126] In some other embodiments, see Figure 6-Figure 8 The packaging part 150 includes a plurality of sub-packaging parts 157 arranged along the thickness direction of the substrate 110, and the plurality of sub-packaging parts 157 are extended from the corresponding isolation opening 124 to the side of the isolation structure 120 away from the substrate 110. In the same packaging part 150, the extension lengths of two adjacent sub-packaging parts 157 along the first direction X are different, which is conducive to extending the extension length of the third gap 183 and improving the bending degree of the third gap 183, so that the reagents of the wet process are not easy to invade the fourth gap 184 and the second gap 182 from the third gap 183, thereby improving the packaging effect of the first packaging part 150a and the second packaging part 150b, and alleviating the dark spot phenomenon of the display panel 100.

[0127] Exemplarily, in the same packaging part 150, the density of two adjacent sub-packaging parts 157 is different, so that in the same packaging part 150, the extension lengths of two adjacent sub-packaging parts 157 along the first direction X are different. For example, the density of the two adjacent sub-packaging parts 157 can be controlled by controlling the film forming speed of the two adjacent sub-packaging parts 157. Alternatively, the materials of the two adjacent sub-packaging parts 157 can be different, so that the density of the two adjacent sub-packaging parts 157 can be different.

[0128] Exemplarily, in the same packaging part 150 , the outer contours of the orthographic projections of two adjacent sub-packaging parts 157 on the substrate 110 are arranged at intervals, so as to facilitate achieving different extension lengths of two adjacent sub-packaging parts 157 of the same packaging part 150 along the first direction X.

[0129] Exemplarily, in the same packaging part 150, the number of sub-packaging parts 157 may be 2, 3, 4, or any number greater than or equal to 5. When the number of sub-packaging parts 157 in the same packaging part 150 is two, the number of sub-packaging parts 157 is small, which can reduce the difficulty and cost of manufacturing the packaging part 150.

[0130] Exemplarily, the thickness range of the sub-packaging portion 157 is 0.4μm-1.2μm, which can avoid the thickness of the sub-packaging portion 157 being too small, reduce the difficulty of preparing the sub-packaging portion 157, and help improve the continuity of the sub-packaging portion 157. It can also avoid the thickness of the sub-packaging portion 157 being too large, thereby reducing the preparation time and cost of the sub-packaging portion 157, which is conducive to the thinness of the display panel 100.

[0131] For example, the thickness of the sub-packaging portion 157 is 0.4 μm, 0.6 μm, 0.8 μm, 1.0 μm, 12 μm, or any value between 0.4 μm and 1.2 μm.

[0132] Exemplarily, in the same packaging part 150, one of the multiple sub-packaging parts 157 that is farthest from the substrate 110 is configured as an outer sub-packaging part. In the second packaging part 150b, the extension length of the outer sub-packaging part along the first direction X is greater than the extension lengths of the remaining sub-packaging parts 157 along the first direction X, so that the outer sub-packaging part can better protect the remaining sub-packaging parts 157.

[0133] Exemplarily, in the second packaging part 150b, the density of the outer sub-packaging part is greater than the density of the remaining sub-packaging parts 157, so that it is easy to achieve that the extension length of the outer sub-packaging part along the first direction X is greater than the extension length of the remaining sub-packaging parts 157 along the first direction X.

[0134] For example, in the same packaging part 150, one of the multiple sub-packaging parts 157 closest to the substrate 110 is configured as an inner sub-packaging part, and at least part of the inner sub-packaging part of the second extension part 1522 is located on the side of the first extension part 1521 away from the substrate 110, which is conducive to reducing the size of each part of the third gap 183 along the first direction X, so that the reagents of the wet process are not easy to invade the third gap 183. At this time, part of the surface of the inner sub-packaging part of the second packaging part 150b is configured as the second side surface 1552.

[0135] See also Figure 6 In the first embodiment in which the first packaging portion 150a includes a plurality of sub-packaging portions 157, in the first extension portion 1521, the extension lengths of the plurality of sub-packaging portions 157 along the first direction X are successively reduced from the substrate 110 to the isolation structure 120, thereby facilitating the extension length of the third gap 183 and the bending degree of the third gap 183 to prevent the reagents of the wet process from invading the fourth gap 184 and the second gap 182 from the third gap 183, thereby improving the packaging effects of the first packaging portion 150a and the second packaging portion 150b and alleviating the dark spot phenomenon of the display panel 100.

[0136] Exemplarily, in the first packaging portion 150a, the density of the multiple sub-packaging portions 157 decreases sequentially from the direction of the substrate 110 to the isolation structure 120, so that in the first extension portion 1521, the extension length of the multiple sub-packaging portions 157 along the first direction X decreases sequentially from the direction of the substrate 110 to the isolation structure 120.

[0137] Exemplarily, at least one of the first side surface 1551 and the second side surface 1552 is a stepped surface, for example, see Figure 6 , the first side surface 1551 and the second side surface 1552 are both stepped surfaces. The first side surface 1551 includes a first sub-surface 1561 and a plurality of second sub-surfaces 1562, two adjacent second sub-surfaces 1562 are connected by the first sub-surface 1561, and adjacent first sub-surfaces 1561 and second sub-surfaces 1562 intersect. The second side surface 1552 includes a third sub-surface 1563 and a plurality of fourth sub-surfaces 1564, two adjacent fourth sub-surfaces 1564 are connected by the third sub-surface 1563, and adjacent third sub-surfaces 1563 and fourth sub-surfaces 1564 intersect. The first sub-surface 1561 and the third sub-surface 1563 are arranged correspondingly, and the third sub-surface 1563 is located on the side of the corresponding first sub-surface 1561 away from the substrate 110, and the second sub-surface 1562 and the fourth sub-surface 1564 are arranged correspondingly, and the second sub-surface 1562 and the corresponding fourth sub-surface 1564 are arranged relatively along the first direction X.

[0138] Exemplarily, at least one of the first sub-surface 1561 and the third sub-surface 1563 is parallel to the substrate 110 , or at least one of the first sub-surface 1561 and the third sub-surface 1563 intersects with the substrate 110 at an angle.

[0139] Exemplarily, at least one of the second sub-surface 1562 and the fourth sub-surface 1564 is perpendicular to the substrate 110 , or at least one of the second sub-surface 1562 and the fourth sub-surface 1564 intersects with the substrate 110 at an angle.

[0140] See also Figure 7 In the second embodiment in which the first packaging portion 150a includes multiple sub-packaging portions 157, in the first extension portion 1521, the extension lengths of the multiple sub-packaging portions 157 along the first direction X increase successively from the substrate 110 to the isolation structure 120, so that the outer sub-packaging portions of the first extension portion 1521 can better protect the remaining sub-packaging portions 157 of the first extension portion 1521.

[0141] Exemplarily, in the first packaging portion 150a, the density of the multiple sub-packaging portions 157 increases sequentially from the direction of the substrate 110 to the isolation structure 120, so that in the first extension portion 1521, the extension length of the multiple sub-packaging portions 157 along the first direction X increases sequentially from the direction of the substrate 110 to the isolation structure 120.

[0142] For example, see Figure 7 A first protrusion 161 is provided on the second side surface 1552, and the first protrusion 161 and the second extension portion 1522 are spaced apart along the thickness direction of the substrate 110, and part of the first extension portion 1521 is inserted between the second extension portion 1522 and the first protrusion 161. By providing the first protrusion 161, the extension portion 152 of the first packaging portion 150a and the extension portion 152 of the second packaging portion 150b are limited to each other along the thickness direction of the substrate 110, thereby better alleviating the peeling phenomenon between the first packaging portion 150a, the second packaging portion 150b and the isolation structure 120.

[0143] Exemplarily, the first side surface 1551 contacts the surface of the first protrusion 161 facing away from the substrate 110, thereby improving the connection stability of the extension portion 152 of the first packaging portion 150a and the extension portion 152 of the second packaging portion 150b, which is beneficial to alleviating the peeling phenomenon between the first packaging portion 150a, the second packaging portion 150b and the isolation structure 120. In addition, the first protrusion 161 blocks the third gap 183, which can prevent the reagents of the wet process from invading the fourth gap 184 and the second gap 182, thereby better alleviating the peeling phenomenon between the first packaging portion 150a, the second packaging portion 150b and the isolation structure 120.

[0144] Exemplarily, the surface of the first protrusion 161 facing away from the second side surface 1552 contacts the first side surface 1551, thereby improving the connection stability between the extension portion 152 of the first packaging portion 150a and the extension portion 152 of the second packaging portion 150b. In addition, the first protrusion 161 can also block the third gap 183, thereby better alleviating the peeling phenomenon between the first packaging portion 150a, the second packaging portion 150b and the isolation structure 120.

[0145] See also Figure 8 In a third embodiment where the first packaging portion 150a includes a plurality of sub-packaging portions 157, in the first extending portion 1521, the plurality of sub-packaging portions 157 include a first sub-packaging portion 1571 and a plurality of second sub-packaging portions 1572, a first sub-packaging portion 1571 is arranged between two adjacent second sub-packaging portions 1572, an extension length of the first sub-packaging portion 1571 along the first direction X is smaller than an extension length of the second sub-packaging portion 1572 along the first direction X, so that the second sub-packaging portion 1572 can better protect the first sub-packaging portion 1571.

[0146] Exemplarily, the density of the first sub-package portion 1571 is smaller than that of the second sub-package portion 1572 , thereby facilitating that the extension length of the first sub-package portion 1571 along the first direction X is smaller than the extension length of the second sub-package portion 1572 along the first direction X.

[0147] For example, see Figure 8 The first sub-package part 1571 and the two adjacent second sub-package parts 1572 together enclose a groove 163, and the second side surface 1552 is provided with a second protrusion 162, and the second protrusion 162 is arranged corresponding to the groove 163, and the second protrusion 162 is inserted into the corresponding groove 163. Through the cooperation of the groove 163 and the second protrusion 162, the extension part 152 of the first packaging part 150a and the extension part 152 of the second packaging part 150b are limited to each other along the thickness direction of the substrate 110, so as to better alleviate the peeling phenomenon between the first packaging part 150a, the second packaging part 150b and the isolation structure 120.

[0148] For example, see Figure 8 The groove side wall of the groove 163 away from the substrate 110 includes a first groove side wall 1631. In the corresponding second protrusion 162 and groove 163, at least one of the groove bottom wall of the groove 163 and the first groove side wall 1631 is in contact with the second protrusion 162, thereby improving the connection stability of the extension portion 152 of the first packaging portion 150a and the extension portion 152 of the second packaging portion 150b. In addition, the second protrusion 162 can also block the third gap 183, thereby better alleviating the peeling phenomenon between the first packaging portion 150a, the second packaging portion 150b and the isolation structure 120.

[0149] It can be understood that in any of the three embodiments in which the first packaging part 150a includes multiple sub-packaging parts 157, the second packaging part 150b includes multiple sub-packaging parts 157, and the extension length size relationship of the multiple sub-packaging parts 157 of the second packaging part 150b along the first direction X can be the same as, or different from, the multiple sub-packaging parts 157 of the first packaging part 150a.

[0150] In some embodiments, see Figure 2 and Figure 4a The orthographic projection of at least one of the first side surface 1551 and the second side surface 1552 on the substrate 110 is located within the orthographic projection of the first isolation portion 121 on the substrate 110, so that the first extension portion 1521 and the third extension portion 1523 both have a good covering effect on the isolation structure 120, which is beneficial to improving the packaging effect of the first packaging portion 150a and the second packaging portion 150b.

[0151] In some embodiments, see Figure 4aThere is a first gap 181 between the first top surface 1531 and the second extension portion 1522, there is a second gap 182 between the second bottom surface 1542 and the isolation structure 120, there is a third gap 183 between at least a portion of the first side surface 1551 and at least a portion of the second side surface 1552, and there is a fourth gap 184 between the first bottom surface 1541 and the isolation structure 120. The reagents of the wet process may pass through the first gap 181 and the third gap 183 and then invade the second gap 182 and the fourth gap 184.

[0152] The pixel defining layer 170 provided in the embodiment of the present application is described below.

[0153] In some embodiments, see Figure 1 , the display panel 100 may include a pixel defining layer 170, and the pixel defining layer 170 may be disposed between the isolation structure 120 and the substrate 110. The pixel defining layer 170 defines a plurality of pixel openings 171, and the pixel openings 171 are correspondingly connected to the isolation openings 124. The orthographic projection of the pixel opening 171 on the substrate 110 may be located within the orthographic projection of the isolation opening 124 on the substrate 110. The light-emitting unit 130 may be at least partially located within the corresponding pixel opening 171. In this way, by providing the pixel defining layer 170, it is convenient to provide the light-emitting unit 130 on the substrate 110.

[0154] Exemplarily, the pixel defining layer 170 is located between the isolation structure 120 and the first electrode 131, and the pixel opening 171 exposes the corresponding first electrode 131. Part of the light emitting function 133 is disposed in the corresponding pixel opening 171 and extends from the corresponding pixel opening 171 to the corresponding isolation opening 124.

[0155] In some embodiments, the pixel defining layer 170 may not be disposed on the substrate 110 , which can help simplify the structure of the display panel 100 , reduce the manufacturing cost of the display panel 100 , and help make the display panel 100 lighter and thinner.

[0156] The light emitting unit 130 provided in the embodiment of the present application is further described below.

[0157] In some embodiments, the light emitting unit 130 includes a first electrode 131 , a light emitting functional component 133 , and a second electrode 132 which are sequentially arranged in a direction away from the substrate 110 .

[0158] For example, part of the first electrode 131 may be covered by the pixel defining layer 170, and another part of the first electrode 131 may be exposed by the corresponding pixel opening 171. At least part of the light emitting functional element 133 and at least part of the second electrode 132 are correspondingly disposed in the isolation opening 124.

[0159] For example, one of the first electrode 131 and the second electrode 132 may be an anode, and the other of the first electrode 131 and the second electrode 132 may be a cathode. The present embodiment is described by taking the first electrode 131 as an anode and the second electrode 132 as a cathode as an example.

[0160] Exemplarily, the first electrode 131 may be electrically connected to a pixel driving circuit, and the pixel driving circuit may be electrically connected to a first power line. The second electrode 132 may be electrically connected to a second power line. One of the first power line and the second power line is used to transmit a high voltage, and the other is used to transmit a low voltage. For example, the first power line is used to transmit a high voltage, and the second power line is used to transmit a low voltage.

[0161] Exemplarily, the light-emitting functional part 133 may include a light-emitting layer (Emission layer, EML). In addition, the light-emitting functional part 133 may also include at least one of a hole injection layer (HIL), a hole transport layer (HTL), an electron injection layer (EIL), an electron transport layer (ETL), a hole blocking layer (HBL) and an electron blocking layer (EBL).

[0162] In some embodiments, the process of forming the light-emitting functional part 133, the second electrode 132 and the first packaging part 150a of the first light-emitting unit 130a may include sequentially forming a first light-emitting functional material layer, a first conductive material layer and a first packaging material layer, and then performing a first patterning process on the first light-emitting functional material layer, the first conductive material layer and the first packaging material layer, retaining the first light-emitting functional material layer in the first isolation opening and forming the light-emitting functional part 133 of the first light-emitting unit 130a, retaining the first conductive material layer in the first isolation opening and forming the second electrode 132 of the first light-emitting unit 130a, and retaining the first packaging material layer to form the first packaging part 150a. In the first patterning process, the fourth gap 184 ( Figure 3 ) can be removed so as to realize that at least one of the second electrode 132 and the light-emitting functional component 133 is located outside at least a portion of the fourth gap 184. The isolation opening 124 corresponding to the first light-emitting unit 130a is a first isolation opening.

[0163] In some embodiments, the process of forming the light-emitting functional part 133, the second electrode 132 and the second packaging part 150b of the second light-emitting unit 130b may include: sequentially forming a second light-emitting functional material layer, a second conductive material layer and a second packaging material layer, and then performing a second patterning process on the second light-emitting functional material layer, the second conductive material layer and the second packaging material layer, retaining the second light-emitting functional material layer in the second isolation opening and forming the light-emitting functional part 133 of the second light-emitting unit 130b, retaining the second conductive material layer in the second isolation opening to form the second electrode 132 of the second light-emitting unit 130b, and retaining the second packaging material layer to form the second packaging part 150b. In the second patterning process, the first gap 181 ( Figure 4a ) can be removed so as to realize that the second electrode 132 and the light-emitting functional component 133 are both located outside the first gap 181. The isolation opening 124 corresponding to the second light-emitting unit 130b is a second isolation opening.

[0164] In some embodiments, see Figure 4b , since in the second patterning process, the etching reagent first invades the first gap 181 and then invades the third gap 183, it is difficult for the etching reagent to invade the third gap 183, so that at least one of the second electrode 132 and the light-emitting functional component 133 in the third gap 183 can be retained, which is conducive to alleviating the peeling phenomenon between the first packaging part 150a, the second packaging part 150b and the isolation structure 120. Among them, the light-emitting functional component 133 may include an organic material, which is easier to be removed by the invading etching reagent than the second electrode 132, so the second electrode 132 in the third gap 183 can be retained, while the light-emitting functional component 133 may not be retained.

[0165] For example, see Figure 4b In the second patterning process, the etching reagent first invades the first gap 181, then invades the third gap 183, and then invades the second gap 182, and the difficulty of the etching reagent invading the second gap 182 is further increased, so that at least one of the second electrode 132 and the light-emitting functional component 133 is retained in the second gap 182, which is conducive to alleviating the peeling phenomenon between the first packaging part 150a, the second packaging part 150b and the isolation structure 120. Among them, the light-emitting functional component 133 is easier to be removed by the invading etching reagent than the second electrode 132, so the second electrode 132 in the second gap 182 can be retained, while the light-emitting functional component 133 may not be retained.

[0166] For example, see Figure 4c , Figure 7 , Figure 8Since the third gap 183 is blocked, the reagents of the wet process can be prevented from passing through the third gap 183 and entering the fourth gap 184 and the second gap 182. At least part of the light-emitting functional parts 133 and the second electrode 132 in the third gap 183 and the second gap 182 can be retained. Figure 7 , Figure 8 not shown).

[0167] The isolation structure 120 provided in the embodiment of the present application is further described below.

[0168] In some embodiments, the isolation structure 120 may refer to an undercut structure that is larger on top and smaller on the bottom and can separate adjacent light-emitting functional components 133. The isolation structure 120 may be a structure formed by a single film layer or a structure formed by stacking multiple film layers.

[0169] Exemplarily, the cross-sectional shape of the isolation structure 120 may be an inverted trapezoid, a T-shape, an I-shape, or the like, which is “large at the top and small at the bottom”.

[0170] In some embodiments, see Figure 1 The isolation structure 120 may include a first isolation portion 121 and a blocking portion 123, wherein the first isolation portion 121 is located on the side of the blocking portion 123 facing the substrate 110, and the orthographic projection of the first isolation portion 121 on the substrate 110 is located within the orthographic projection of the blocking portion 123 on the substrate 110, thereby making the isolation structure 120 form an undercut structure of "large on top and small on bottom", that is, the isolation structure 120 has an "eaves", so that in the process of forming the light-emitting functional component 133, the isolation structure 120 can separate two adjacent light-emitting functional components 133.

[0171] In some embodiments, see Figure 1 , the isolation structure 120 may include a second isolation portion 122, the second isolation portion 122 may be located on a side of the first isolation portion 121 away from the blocking portion 123, and the orthographic projection of the first isolation portion 121 on the substrate 110 may be located within the orthographic projection of the second isolation portion 122 on the substrate 110. Thus, in an embodiment where the material of the isolation structure 120 is a conductive material, the isolation structure 120 may reduce the resistance of the isolation structure 120 by providing the stacked first isolation portion 121, the second isolation portion 122 and the blocking portion 123, thereby reducing the power consumption of the display panel 100.

[0172] Exemplarily, the material of at least one of the first isolation portion 121, the second isolation portion 122 and the blocking portion 123 may be a conductive material. The material of at least one of the first isolation portion 121, the second isolation portion 122 and the blocking portion 123 may include metals such as titanium, silver, copper, aluminum, molybdenum, or alloys, or conductive oxides, such as indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), aluminum zinc oxide (AZO), zinc gallium oxide, titanium tantalum oxide, tin oxide, cadmium oxide, indium oxide, any one or more. In other examples, the material of at least one of the first isolation portion 121, the second isolation portion 122 and the blocking portion 123 may be an insulating material, which is not limited in the embodiments of the present application.

[0173] For example, the material of the barrier 123 may include at least one of titanium and molybdenum.

[0174] For example, the material of the first isolation portion 121 may include at least one of aluminum, copper, and silver.

[0175] For example, the material of the second isolation portion 122 may include at least one of titanium and molybdenum.

[0176] In the embodiment where at least one of the first isolation portion 121, the second isolation portion 122 and the blocking portion 123 is made of a conductive material, the second electrode 132 may be electrically connected to the isolation structure 120. In this way, the second electrodes 132 located in the isolation openings 124 may be connected as a whole through the isolation structure 120, so that the second electrodes 132 may be electrically connected to the second power line through the isolation structure 120, so as to apply a power supply voltage to the second electrodes 132, thereby optimizing the wiring arrangement of the display panel 100.

[0177] In an embodiment where the material of the first isolation portion 121 is a conductive material, the second electrode 132 may be electrically connected to the first isolation portion 121 .

[0178] In an embodiment where the material of the second isolation portion 122 is a conductive material, the second electrode 132 may be electrically connected to the second isolation portion 122 .

[0179] In an embodiment in which the materials of the first isolation portion 121 and the second isolation portion 122 are both conductive materials, the second electrode 132 can be electrically connected to at least one of the first isolation portion 121 and the second isolation portion 122. For example, the second electrode 132 is connected to both the first isolation portion 121 and the second isolation portion 122, thereby improving the connection stability between the second electrode 132 and the isolation structure 120.

[0180] In some embodiments, the display panel 100 may further include a first encapsulation layer, which is located on a side of the encapsulation part 150 facing away from the substrate 110 . The material of the first encapsulation layer may include an organic material.

[0181] In some embodiments, the display panel 100 may further include a second encapsulation layer, which is located on a side of the first encapsulation layer away from the substrate 110 , and a material of the second encapsulation layer may include an inorganic material.

[0182] In some embodiments, the display panel 100 may further include a touch layer, which is located on a side of the second encapsulation layer facing away from the substrate 110 , and the touch layer is used to implement a touch function.

[0183] In some embodiments, the display panel 100 may include a cover plate, which is located on the side of the touch layer away from the substrate 110, and is used to protect the display panel to prevent the display panel from being scratched when the user uses the display panel 100. That is, the touch layer is located between the cover plate and the second encapsulation layer.

[0184] In some embodiments, a connection layer may be provided between the cover plate and the touch layer, and the connection layer is used to connect the cover plate and the touch layer so that the two are stably connected; in addition, the connection layer may also be used to provide a flat surface to facilitate the connection between the cover plate and the touch layer. For example, the connection layer may be formed of optically transparent adhesive.

[0185] In the case of using “including”, “having”, and “comprising” described herein, another component may be added unless a clear limiting term such as “only”, “consisting of”, etc. is used. Unless mentioned otherwise, a term in the singular form may include a plural form and should not be understood as being one in number.

[0186] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0187] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached 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 a plurality of isolation openings; A plurality of light-emitting units are disposed on one side of the substrate, the plurality of light-emitting units are disposed corresponding to the plurality of isolation openings, and the light-emitting units are at least partially located in the corresponding isolation openings; The plurality of light emitting units include a first light emitting unit and a second light emitting unit that are adjacent to each other and emit light of different colors; A plurality of encapsulation parts are arranged corresponding to the plurality of light-emitting units, the encapsulation parts include a main body part and an extension part, the main body part is arranged on a side of the corresponding light-emitting unit away from the substrate and a side wall of the isolation opening, and the extension part is arranged on a side of the isolation structure away from the substrate; the plurality of encapsulation parts include adjacent first encapsulation parts and second encapsulation parts, the first encapsulation part is arranged corresponding to the first light-emitting unit, and the second encapsulation part is arranged corresponding to the second light-emitting unit; The orthographic projection of the extending portion of the first packaging portion on the substrate overlaps with the orthographic projection of the extending portion of the second packaging portion on the substrate.

2. The display panel according to claim 1, characterized in that: The extending portion of the first encapsulation portion includes a first extending portion, and the extending portion of the second encapsulation portion includes a second extending portion, the first extending portion and the second extending portion are both located on a side of the isolation structure between the first light-emitting unit and the second light-emitting unit away from the substrate, and at least a portion of the second extending portion is located on a side of the first extending portion away from the substrate; Preferably, the extension portion of the second packaging portion further includes a third extension portion, the third extension portion is located on a side of the isolation structure between the first light-emitting unit and the second light-emitting unit away from the substrate, the second extension portion and the main body of the second packaging portion are connected through the third extension portion, the third extension portion and the first extension portion are arranged along a first direction, and the first direction is perpendicular to the thickness direction of the substrate; Preferably, the first light emitting unit and the second light emitting unit are arranged along the first direction; Preferably, the thickness of the packaging portion ranges from 1 μm to 2.4 μm; Preferably, the material of the encapsulation portion includes at least one of silicon nitride, silicon oxide and silicon oxynitride.

3. The display panel according to claim 2, characterized in that: The surface of the first extension portion facing the third extension portion is a first side surface, the surface of the first extension portion away from the substrate is a first top surface, and the surface of the first extension portion close to the substrate is a first bottom surface; the surface of the third extension portion facing the first extension portion is a second side surface, the surface of the third extension portion away from the substrate is a second top surface, and the surface of the third extension portion facing the substrate is a second bottom surface; Preferably, the overlap size of the orthographic projection of the first extension portion on the substrate and the orthographic projection of the second extension portion on the substrate is greater than or equal to 1 μm; Preferably, the shapes of the first side surface and the second side surface are matched.

4. The display panel according to claim 3, characterized in that: At least one of the angle between the first side surface and the first top surface and the angle between the second side surface and the second bottom surface is less than 90°; Preferably, the first side surface is an inclined surface, and an end of the first side surface close to the substrate is inclined relative to an end away from the substrate in a direction away from the second side surface; or, the first side surface is a curved surface; Preferably, the second side surface is an inclined surface, and an end of the second side surface close to the substrate is inclined relative to an end away from the substrate toward a direction close to the first side surface; or, the second side surface is a curved surface; Preferably, the density of the first extension portion gradually increases from the substrate to the isolation structure.

5. The display panel according to claim 3, characterized in that: In the same packaging part, the packaging part includes a plurality of sub-packaging parts arranged along the thickness direction of the substrate, the plurality of sub-packaging parts all extend from the corresponding isolation opening to a side of the isolation structure away from the substrate, and the extension lengths of two adjacent sub-packaging parts along the first direction are different; Preferably, in the same packaging part, the outer contours of the orthographic projections of two adjacent sub-packaging parts on the substrate are arranged at intervals; Preferably, in the same packaging part, the densities of two adjacent sub-packaging parts are different; Preferably, in the same packaging part, the number of the sub-packaging parts is two; Preferably, the thickness of the sub-packaging portion is in the range of 0.4 μm to 1.2 μm.

6. The display panel according to claim 5, characterized in that: In the same packaging part, one of the plurality of sub-packaging parts that is farthest from the substrate is configured as an outer sub-packaging part; in the second packaging part, an extension length of the outer sub-packaging part along the first direction is greater than an extension length of the remaining sub-packaging parts along the first direction; Preferably, in the second packaging part, the density of the outer sub-packaging part is greater than the density of the remaining sub-packaging parts.

7. The display panel according to claim 5, characterized in that: In the same packaging part, one of the plurality of sub-packaging parts closest to the substrate is configured as an inner sub-packaging part; at least part of the inner sub-packaging part of the second extension part is located on a side of the first extension part away from the substrate; Preferably, a portion of the surface of the inner sub-packaging portion of the second packaging portion is configured as the second side surface.

8. The display panel according to claim 5, characterized in that: In the first extension portion, the extension lengths of the plurality of sub-encapsulation portions along the first direction decrease in sequence from the substrate to the isolation structure; Preferably, in the first packaging part, the density of the plurality of sub-packaging parts decreases in sequence from the substrate to the isolation structure; Preferably, at least one of the first side surface and the second side surface is a step surface; Preferably, the first side surface includes a first sub-surface and a plurality of second sub-surfaces, two adjacent second sub-surfaces are connected via the first sub-surface, and adjacent first sub-surfaces intersect with the second sub-surfaces; the second side surface includes a third sub-surface and a plurality of fourth sub-surfaces, two adjacent fourth sub-surfaces are connected via the third sub-surface, and adjacent third sub-surfaces intersect with the fourth sub-surfaces; the first sub-surface and the third sub-surface are arranged correspondingly, the third sub-surface is located on a side of the corresponding first sub-surface away from the substrate, the second sub-surface and the fourth sub-surface are arranged correspondingly, and the second sub-surface and the corresponding fourth sub-surface are arranged relatively along the first direction; Preferably, at least one of the first sub-surface and the third sub-surface is parallel to the substrate; Preferably, at least one of the second sub-surface and the fourth sub-surface is perpendicular to the substrate.

9. The display panel according to claim 5, characterized in that: In the first extension portion, the extension lengths of the plurality of sub-encapsulation portions along the first direction increase sequentially from the substrate to the isolation structure; Preferably, in the first packaging part, the density of the plurality of sub-packaging parts increases sequentially from the substrate to the isolation structure.

10. The display panel according to claim 9, characterized in that: A first protrusion is provided on the second side surface, the first protrusion and the second extension portion are arranged at intervals along the thickness direction of the substrate, and a portion of the first extension portion is inserted between the second extension portion and the first protrusion; Preferably, the first side surface is in contact with a surface of the first protrusion facing away from the substrate; Preferably, the first side surface is in contact with a surface of the first protrusion that is away from the second side surface.

11. The display panel according to claim 5, characterized in that: In the first extension portion, the plurality of sub-encapsulation portions include a first sub-encapsulation portion and a plurality of second sub-encapsulation portions, a first sub-encapsulation portion is disposed between two adjacent second sub-encapsulation portions, and an extension length of the first sub-encapsulation portion along the first direction is less than an extension length of the second sub-encapsulation portion along the first direction; Preferably, the density of the first sub-packaging portion is smaller than the density of the second sub-packaging portion.

12. The display panel according to claim 11, characterized in that: The first sub-encapsulation part and two adjacent second sub-encapsulation parts together enclose a groove, the second side surface is provided with a second protrusion, the second protrusion is arranged corresponding to the groove, and the second protrusion is inserted into the corresponding groove; Preferably, the groove sidewall on the side of the groove away from the substrate includes a first groove sidewall, and in the corresponding second protrusion and the groove, at least one of the groove bottom wall of the groove and the first groove sidewall contacts the second protrusion.

13. The display panel according to claim 3, characterized in that: The angle between the first side surface and the first top surface is less than 90°, and an end of the first side surface away from the substrate is in contact with an end of the second side surface away from the substrate; Preferably, an end of the first side surface close to the substrate is spaced apart from an end of the second side surface close to the substrate.

14. The display panel according to any one of claims 3 to 13, characterized in that: The light-emitting unit comprises a first electrode, a light-emitting functional part and a second electrode which are sequentially arranged in a direction away from the substrate; Preferably, a first gap is defined between the first top surface and the second extension portion, and the second electrode and the light-emitting functional component are both located outside the first gap.

15. The display panel according to claim 14, characterized in that: A second gap is defined between the second bottom surface and the isolation structure, and at least one of the second electrode and the light-emitting functional component is located in the second gap.

16. The display panel according to claim 14, characterized in that: A third gap is provided between at least a portion of the first side surface and at least a portion of the second side surface, and at least one of the second electrode and the light-emitting functional component is located in the third gap; Preferably, a fourth gap is provided between the first bottom surface and the isolation structure, and at least one of the second electrode and the light-emitting functional component is located outside at least a portion of the fourth gap.

17. The display panel according to any one of claims 3 to 13, characterized in that: The isolation structure comprises a first isolation portion and a blocking portion, wherein the first isolation portion is located on a side of the blocking portion facing the substrate, and an orthographic projection of the first isolation portion on the substrate is located within an orthographic projection of the blocking portion on the substrate; Preferably, the orthographic projection of at least one of the first side surface and the second side surface on the substrate is located within the orthographic projection of the first isolation portion on the substrate; Preferably, the isolation structure comprises a second isolation portion, the second isolation portion is located on a side of the first isolation portion away from the blocking portion, and an orthographic projection of the first isolation portion on the substrate is located within an orthographic projection of the second isolation portion on the substrate.

18. A display panel, characterized in that: include: substrate; An isolation structure is disposed on one side of the substrate, and the isolation structure encloses a plurality of isolation openings; A plurality of light-emitting units are disposed on one side of the substrate, the plurality of light-emitting units are disposed corresponding to the plurality of isolation openings, and the light-emitting units are at least partially located in the corresponding isolation openings; The plurality of light emitting units include a third light emitting unit, a fourth light emitting unit and a fifth light emitting unit having different light emitting colors; A plurality of encapsulation parts are arranged corresponding to the plurality of light-emitting units, the encapsulation parts include a main body part and an extension part, the main body part is arranged on a side of the corresponding light-emitting unit away from the substrate and a side wall of the isolation opening, and the extension part is arranged on a side of the isolation structure away from the substrate; the plurality of encapsulation parts include a third encapsulation part, a fourth encapsulation part and a fifth encapsulation part, the third encapsulation part is arranged corresponding to the third light-emitting unit, the fourth encapsulation part is arranged corresponding to the fourth light-emitting unit, and the fifth encapsulation part is arranged corresponding to the fifth light-emitting unit; Among them, in the adjacent third encapsulation part and the fourth encapsulation part, the orthographic projection of the extension part of the third encapsulation part on the substrate overlaps with the orthographic projection of the extension part of the fourth encapsulation part on the substrate.

19. The display panel according to claim 18, characterized in that: In the adjacent fourth encapsulation part and the fifth encapsulation part, an orthographic projection of the extension part of the fourth encapsulation part on the substrate overlaps with an orthographic projection of the extension part of the fifth encapsulation part on the substrate; Preferably, in the adjacent third encapsulation part and the fifth encapsulation part, the orthographic projection of the extension part of the third encapsulation part on the substrate overlaps with the orthographic projection of the extension part of the fifth encapsulation part on the substrate; Preferably, in the adjacent third encapsulation portion and the fourth encapsulation portion, the extension portion of the fourth encapsulation portion is at least partially located on a side of the third encapsulation portion away from the substrate; Preferably, in the adjacent fourth encapsulation portion and the fifth encapsulation portion, the extension portion of the fifth encapsulation portion is at least partially located on a side of the fourth encapsulation portion away from the substrate; Preferably, in the adjacent third encapsulation portion and the fifth encapsulation portion, the extension portion of the fifth encapsulation portion is at least partially located on a side of the third encapsulation portion away from the substrate.

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

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