Display panel and display device

Abstract

The present application relates to a display panel and a display device. The display panel includes a substrate, a plurality of light-emitting units, and a plurality of packaging parts; an isolation structure is provided on the substrate, the isolation structure encloses and forms a 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 and have different luminous colors; the packaging part includes a main body and an extension part, the main body is provided 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 provided on the side of the isolation structure away from the substrate; the plurality of packaging parts include adjacent first packaging parts and second packaging parts, 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 overlaps with the orthographic projection of the extension part of the second packaging part on the substrate. Therefore, the display panel and display device provided by the present application can improve the dark spot problem of the display panel.

Description

Technical Field

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

[0002] Organic Light Emitting Diode (OLED) display technology is considered the most promising next-generation flat panel display technology. Compared to LCD technology, OLED display technology has advantages such as low energy consumption, low cost, self-emissiveness, wide viewing angle, and fast response speed. However, the display panel is prone to dark spots. Summary of the Invention

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

[0004] In a first aspect, embodiments of this application provide a display panel, comprising: a substrate; an isolation structure disposed on one side of the substrate, the isolation structure enclosing and forming a plurality of isolation openings; a plurality of light-emitting units disposed on one side of the substrate, the plurality of light-emitting units 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 including adjacent first light-emitting units and second light-emitting units emitting different colors; a plurality of encapsulation portions corresponding to the plurality of light-emitting units, the encapsulation portion including a main body portion and an extension portion, the main body portion being disposed on the side of the corresponding light-emitting unit away from the substrate and the sidewall of the isolation opening, the extension portion being disposed on the side of the isolation structure away from the substrate; the plurality of encapsulation portions including adjacent first encapsulation portions and second encapsulation portions, the first encapsulation portion being corresponding to the first light-emitting unit, and the second encapsulation portion being 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 in this application embodiment reduces the force exerted on the extensions of the first and second packaging portions during the manufacturing process by overlapping the orthographic projections of the extensions of the first and second packaging portions on the substrate. This makes it difficult for the first and second packaging portions to peel off from the isolation structure, thereby improving the packaging effect of the first and second packaging portions and alleviating the dark spot phenomenon of the display panel.

[0006] In one embodiment, the extension of the first encapsulation portion includes a first extension, the extension of the second encapsulation portion includes a second extension, the first extension and the second extension are both located on the 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 is located on the side of the first extension away from the substrate.

[0007] Preferably, the extension of the second encapsulation portion further includes a third extension portion. The third extension portion is located on the 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 encapsulation portion are connected through the third extension portion. The third extension portion and the first extension portion are arranged along a first direction, which 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 the first direction;

[0009] Preferably, the thickness of the encapsulation 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 side of the first extension facing the third extension is the first side surface, the side of the first extension away from the substrate is the first top surface, and the side of the first extension close to the substrate is the first bottom surface; the side of the third extension facing the first extension is the second side surface, the side of the third extension away from the substrate is the second top surface, and the side of the third extension facing the substrate is the second bottom surface.

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

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

[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 the end of the first side surface near the substrate is inclined in a direction away from the second side surface relative to the end away from the substrate; or, the first side surface is an arc surface;

[0016] Preferably, the second side is an inclined surface, with the end of the second side closer to the substrate inclined toward the direction closer to the first side relative to the end farther from the substrate; or, the second side is an arc surface.

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

[0018] In one embodiment, in the same package, the package includes a plurality of sub-packages arranged along the thickness direction of the substrate, and the plurality of sub-packages extend from corresponding isolation openings to the side of the isolation structure away from the substrate, and the extension lengths of two adjacent sub-packages along the first direction are different.

[0019] Preferably, in the same package, the outer contours of the orthographic projections of two adjacent sub-packages on the substrate are spaced apart;

[0020] Preferably, in the same package, the densities of two adjacent sub-packages are different;

[0021] Preferably, the number of sub-packages in the same package is two;

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

[0023] In one embodiment, in the same package, the one furthest from the substrate among a plurality of sub-packages is configured as the outer sub-package; in the second package, the extension length of the outer sub-package along the first direction is greater than the extension length of the remaining sub-packages along the first direction.

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

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

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

[0027] In one embodiment, in the first extension, the extension length of a plurality of sub-package portions along the first direction decreases sequentially from the substrate to the isolation structure.

[0028] Preferably, in the first packaging section, the density of the plurality of sub-packaging sections decreases sequentially from the substrate to the isolation structure;

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

[0030] Preferably, the first side surface includes a first sub-surface and a plurality of second sub-surfaces, with adjacent second sub-surfaces connected by the first sub-surfaces and adjacent first and second sub-surfaces intersecting; the second side surface includes a third sub-surface and a plurality of fourth sub-surfaces, with adjacent fourth sub-surfaces connected by the third sub-surfaces and adjacent third and fourth sub-surfaces intersecting; the first and third sub-surfaces are correspondingly arranged, with the third sub-surface located on the side of the corresponding first sub-surface away from the substrate, and the second and fourth sub-surfaces are correspondingly arranged, with the second and corresponding fourth sub-surfaces being arranged opposite to each other along a 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 and fourth sub-surfaces is perpendicular to the substrate.

[0033] In one embodiment, in the first extension, the extension length of a plurality of sub-package portions increases sequentially from the substrate to the isolation structure along the first direction;

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

[0035] Preferably, a first protrusion is provided on the second side surface, and the first protrusion and the second extension are spaced apart along the thickness direction of the substrate, with a portion of the first extension inserted between the second extension and the first protrusion.

[0036] Preferably, the first side surface contacts the surface of the first protrusion that is away from the substrate.

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

[0038] In one embodiment, in the first extension, the plurality of sub-package portions include a first sub-package portion and a plurality of second sub-package portions, a first sub-package portion is disposed between two adjacent second sub-package portions, and the extension length of the first sub-package portion along the first direction is less than the extension length of the second sub-package 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 two adjacent second sub-encapsulation parts together enclose and form a groove, and a second protrusion is provided on the second side, the second protrusion is correspondingly provided with 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 of the groove and the first groove sidewall is in contact with the second protrusion.

[0042] In one embodiment, the angle between the first side surface and the first top surface is less than 90°, and the end of the first side surface away from the substrate is in contact with the end of the second side surface away from the substrate.

[0043] Preferably, the end of the first side closest to the substrate and the end of the second side closest to the substrate are spaced apart.

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

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

[0046] Preferably, a second gap is formed 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 formed between at least a portion of the first side and at least a portion of the second side, and at least one of the second electrode and the light-emitting functional element is located in the third gap;

[0048] Preferably, a fourth gap exists between the first bottom surface and the isolation structure, and at least one of the second electrode and the light-emitting functional element 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 being located on the side of the blocking portion facing the substrate, and the orthographic projection of the first isolation portion on the substrate being located within the orthographic projection of the blocking portion on the substrate.

[0050] Preferably, the orthographic projection of at least one of the first side and the second side onto the substrate lies within the orthographic projection of the first isolation portion onto the substrate.

[0051] Preferably, the isolation structure includes a second isolation portion, which is located on the 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] Secondly, embodiments of this application provide a display panel, comprising: a substrate; an isolation structure disposed on one side of the substrate, the isolation structure enclosing and forming a plurality of isolation openings; a plurality of light-emitting units disposed on one side of the substrate, the plurality of light-emitting units 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 including a third light-emitting unit, a fourth light-emitting unit, and a fifth light-emitting unit emitting different colors; a plurality of encapsulation portions corresponding to the plurality of light-emitting units, the encapsulation portion including a main body portion and an extension portion, the main body portion being disposed on the side of the corresponding light-emitting unit away from the substrate and on the sidewall of the isolation opening, the extension portion being disposed on the side of the isolation structure away from the substrate; the plurality of encapsulation portions including a third encapsulation portion, a fourth encapsulation portion, and a fifth encapsulation portion, the third encapsulation portion corresponding to the third light-emitting unit, the fourth encapsulation portion corresponding to the fourth light-emitting unit, and the fifth encapsulation portion corresponding to the fifth light-emitting unit; wherein, in adjacent third encapsulation portions and fourth encapsulation portions, the orthographic projection of the extension portion of the third encapsulation portion on the substrate overlaps with the orthographic projection of the extension portion of the fourth encapsulation portion on the substrate.

[0053] The display panel provided in this application embodiment reduces the force exerted on the extensions of the third and fourth packaging portions during the manufacturing process by having the orthographic projections of the extensions of the third and fourth packaging portions on the substrate overlap. This makes it less likely for the third and fourth packaging portions to peel off from the isolation structure, thereby improving the packaging effect of the third and fourth packaging portions and alleviating the dark spot phenomenon of the display panel.

[0054] In one embodiment, in adjacent fourth and fifth package portions, the orthographic projection of the extension of the fourth package portion onto the substrate overlaps with the orthographic projection of the extension of the fifth package portion onto the substrate.

[0055] Preferably, in adjacent third and fifth packaging portions, the orthographic projection of the extension of the third packaging portion on the substrate overlaps with the orthographic projection of the extension of the fifth packaging portion on the substrate.

[0056] Preferably, in the adjacent third and fourth package portions, the extension of the fourth package portion is at least partially located on the side of the third package portion away from the substrate.

[0057] Preferably, in the adjacent fourth and fifth package portions, the extension of the fifth package portion is at least partially located on the side of the fourth package portion away from the substrate.

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

[0059] Thirdly, embodiments of this application provide a display device, including the display panel described in the first or second aspect above.

[0060] The display device provided in this application includes a display panel. By overlapping the orthographic projection of the extension of the first encapsulation portion on the substrate with the orthographic projection of the extension of the second encapsulation portion on the substrate, the force exerted on the extensions of the first and second encapsulation portions during the manufacturing process is reduced, making it difficult for the first and second encapsulation portions and the isolation structure to peel off. This improves the encapsulation effect of the first and second encapsulation portions and alleviates the dark spot phenomenon of the display panel. Attached Figure Description

[0061] To more clearly illustrate the technical solutions in the embodiments or exemplary embodiments of this application, the drawings used in the description of the embodiments or exemplary embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

[0063] Figure 2 This is a schematic diagram of the structure after the isolation structure is formed, as provided in an embodiment of this application.

[0064] Figure 3 This is a schematic diagram of the structure after the formation of the first encapsulation part, provided in an embodiment of this application.

[0065] Figure 4a This is a schematic diagram of the structure after the second encapsulation part is formed, as provided in an embodiment of this application.

[0066] Figure 4b This is a schematic diagram of the structure after the second encapsulation part is formed, as provided in an embodiment of this application.

[0067] Figure 4c This is a schematic diagram of the structure after the second encapsulation part is formed, as provided in an embodiment of this application.

[0068] Figure 5 This is a schematic diagram of another structure after the formation of the first encapsulation part, provided in an embodiment of this application.

[0069] Figure 6 This is another structural diagram showing the formation of the second encapsulation portion, provided as an embodiment of this application.

[0070] Figure 7 The packaging section provided in the embodiments of this application includes a structural schematic diagram of multiple sub-packaging sections.

[0071] Figure 8 Another structural schematic diagram of the packaging section provided in the embodiments of this application, which includes multiple sub-packaging sections.

[0072] Figure 9 This is a top view of the light-emitting unit and the isolation structure provided in the embodiments of this application.

[0073] Explanation of reference numerals in the attached figures:

[0074] 100. Display panel; 110. Substrate; 120. Isolation structure; 121. First isolation portion; 122. Second isolation portion; 123. Blocking portion; 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 component; 150. Encapsulation portion; 150a. First encapsulation portion; 150b. Second encapsulation portion; 150c. Third encapsulation portion; 150d. Fourth encapsulation portion; 150e. Fifth encapsulation portion; 151. Main body portion; 152. Extension portion; 1521. First extension portion; 15 22. Second extension; 1523. Third extension; 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-encapsulation portion; 1571. First sub-encapsulation portion; 1572. Second sub-encapsulation portion; 161. First protrusion; 162. Second protrusion; 163. Groove; 1631. First groove sidewall; 170. Pixel limiting layer; 171. Pixel opening; 181. First gap; 182. Second gap; 183. Third gap; 184. Fourth gap; X, First direction. Detailed Implementation

[0075] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of this application.

[0076] It should be understood that although the terms “first,” “second,” etc., may be used herein to describe various elements, this does not indicate any order, quantity, or importance, but is merely used to distinguish different components. These terms are used only to distinguish one element from another. For example, without departing from the scope of this application, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element. Words such as “comprising” or “including” mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, without excluding other elements or objects.

[0077] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0078] The composition and preparation 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 considered the most promising next-generation flat panel display technology. Compared with liquid crystal display technology, OLED display technology has advantages such as low energy consumption, low cost, self-emissiveness, wide viewing angle, and fast response speed.

[0080] In the process of developing this application, the inventors discovered the following problems in the related technology: The display panel may include a substrate and an isolation structure disposed on the substrate, multiple light-emitting units, and multiple encapsulation portions. The isolation structure defines multiple isolation openings, and the light-emitting units are at least partially disposed within the isolation openings. The encapsulation portion is disposed 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 encapsulation portion includes an extension portion located on the side of the isolation structure facing away from the substrate, and there is a gap between the surface of the extension portion facing the substrate and the surface of the isolation structure facing away from the substrate, i.e., the extension portion is a suspended design.

[0081] However, during the manufacturing process after the encapsulation part is prepared, the force applied to the extension part causes the extension part and the isolation structure to easily peel off, which in turn damages the light-emitting unit and results in dark spots on the display panel.

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

[0083] The following will combine Figures 1-9 The display device provided in the embodiments of this application will be described.

[0084] This application provides a display device, which may include a display panel 100. The display device may be an electronic paper device, mobile phone, tablet computer, television, monitor, laptop computer, digital photo frame, smart bracelet, smartwatch, supercomputer, navigator, wireless device, personal digital assistant (PDA), handheld or portable computer, GPS receiver / navigator, camera, MP4 video player, camcorder, game console, clock, calculator, television monitor, computer monitor, automotive display (e.g., odometer display), cockpit controller and / or display, camera view display (e.g., display of a rearview camera in a vehicle), electronic billboard or sign, projector, and other mobile or fixed terminals.

[0085] For example, the display panel 100 can 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 (MiniLED) display panel, a micro light-emitting diode (Micro LED) display panel, or a liquid crystal display (LCD) display panel, etc. This application uses an OLED display panel as an example for illustration.

[0086] The display panel 100 provided in the embodiments of this application will be described below.

[0087] See Figure 1 This application provides a display panel 100, which may include a substrate 110. The substrate 110 may provide support for other film layers subsequently applied.

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

[0089] In some embodiments, see Figure 1 The display panel 100 includes light-emitting units 130, which are located on the side of the substrate 110 facing the isolation structure 120. There can be multiple light-emitting units 130, which are spaced apart; for example, they can be arranged in an array. The light-emitting units 130 and the isolation openings 124 can be correspondingly arranged, and at least a portion of the light-emitting unit 130 can be located within the corresponding isolation opening 124. This embodiment illustrates an example where at least a portion of a light-emitting unit 130 can be disposed within an isolation opening 124.

[0090] In this embodiment, the correspondence between A and B can refer to: one A corresponding to at least one B, or one B corresponding to at least one A. This embodiment uses the example of one A corresponding to one B. For example, the light-emitting unit 130 and the isolation opening 124 are correspondingly configured; one light-emitting unit 130 and at least one isolation opening 124 are correspondingly configured; or one isolation opening 124 and at least one light-emitting unit 130 are correspondingly configured.

[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, there can be multiple third light-emitting units 130c, fourth light-emitting units 130d, and fifth light-emitting units 130e.

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

[0093] For example, any two of the third light-emitting unit 130c, the fourth light-emitting unit 130d, and the fifth light-emitting unit 130e can be arranged adjacent to each other.

[0094] In some embodiments, see Figure 1The display panel 100 includes multiple encapsulation portions 150, each corresponding to a light-emitting unit 130. The encapsulation portion 150 is disposed on the side of the corresponding light-emitting unit 130 facing away from the substrate 110. The encapsulation portion 150 is also corresponding to an isolation opening 124, located on the sidewall of the corresponding isolation opening 124, and extends to the side of the isolation structure 120 facing away from the substrate 110, thus achieving a better encapsulation effect on the light-emitting unit 130. It can be understood that the corresponding encapsulation portion 150 and light-emitting unit 130 can be configured such that one light-emitting unit 130 is correspondingly disposed with at least one encapsulation portion 150, or one encapsulation portion 150 is correspondingly disposed with at least one light-emitting unit 130.

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

[0096] For example, the plurality of encapsulation portions 150 include a third encapsulation portion 150c, a fourth encapsulation portion 150d, and a fifth encapsulation portion 150e. The third encapsulation portion 150c is disposed corresponding to the third light-emitting unit 130c, and is located 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 portion 150d is disposed corresponding to the fourth light-emitting unit 130d, and is located 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 portion 150e is disposed corresponding to the fifth light-emitting unit 130e, and is located 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] For example, any two of the third packaging section 150c, the fourth packaging section 150d, and the fifth packaging section 150e can be arranged adjacent to each other.

[0098] For example, the third encapsulation portion 150c, the fourth encapsulation portion 150d, and the fifth encapsulation portion 150e can be prepared in steps. For example, the third encapsulation portion 150c can be prepared first, then the fourth encapsulation portion 150d can be prepared, and then the fifth encapsulation portion 150e can be prepared.

[0099] For example, in adjacent third encapsulation portions 150c and fourth encapsulation portions 150d, the orthographic projection of the extension 152 of the third encapsulation portion 150c onto the substrate 110 overlaps with the orthographic projection of the extension 152 of the fourth encapsulation portion 150d onto the substrate 110. This causes one of the extensions 152 of the third encapsulation portion 150c and the fourth encapsulation portion 150d to cover the other, thereby extending the gap between the third encapsulation portion 150c and the isolation structure 120, and between the fourth encapsulation portion 150d and the isolation structure 120, in subsequent wet processing. The path is made more tortuous, making it less likely for reagents to penetrate the gap between the third encapsulation part 150c and the isolation structure 120, and the gap between the fourth encapsulation part 150d and the isolation structure 120. This reduces the force exerted by the wet process on the extension 152 of the third encapsulation part 150c and the fourth encapsulation part 150d, making it less likely for the third encapsulation part 150c and the isolation structure 120, and the fourth encapsulation part 150d and the isolation structure 120 to peel off. This improves the encapsulation effect of the third encapsulation part 150c and the fourth encapsulation part 150d and alleviates the dark spot phenomenon of the display panel 100.

[0100] For example, in adjacent fourth encapsulation portion 150d and fifth encapsulation portion 150e, the orthographic projection of the extension portion 152 of the fourth encapsulation portion 150d on the substrate 110 overlaps with the orthographic projection of the extension portion 152 of the fifth encapsulation portion 150e on the substrate 110, making it difficult for the fourth encapsulation portion 150d and the isolation structure 120, as well as the fifth encapsulation portion 150e and the isolation structure 120, to peel off, thereby improving the encapsulation effect of the fourth encapsulation portion 150d and the fifth encapsulation portion 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 adjacent third encapsulation portion 150c and fifth encapsulation portion 150e, the orthographic projection of the extension portion 152 of the third encapsulation portion 150c on the substrate 110 overlaps with the orthographic projection of the extension portion 152 of the fifth encapsulation portion 150e on the substrate 110, making it difficult for the third encapsulation portion 150c and the isolation structure 120, as well as the fifth encapsulation portion 150e and the isolation structure 120, to peel off, thereby improving the encapsulation effect of the third encapsulation portion 150c and the fifth encapsulation portion 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 an embodiment where the third package portion 150c is prepared before the fourth package portion 150d, in adjacent third package portions 150c and fourth package portions 150d, the extension portion 152 of the fourth package portion 150d is at least partially located on the side of the third package portion 150c away from the substrate 110.

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

[0104] In an embodiment where the third package portion 150c is prepared before the fifth package portion 150e, in the adjacent third package portion 150c and fifth package portion 150e, the extension portion 152 of the fifth package portion 150e is at least partially located on the side of the third package portion 150c 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 can be arranged adjacently and respectively form the first light-emitting unit 130a and the second light-emitting unit 130b. This is equivalent to two adjacent light-emitting units 130 with different colors being the first light-emitting unit 130a and the second light-emitting unit 130b. The first light-emitting unit 130a and the second light-emitting unit 130b can be the third light-emitting unit 130c and the fourth light-emitting unit 130d, or the first light-emitting unit 130a and the second light-emitting unit 130b can be the third light-emitting unit 130c and the fifth light-emitting unit 130e, or the first light-emitting unit 130a and the second light-emitting unit 130b can be the fourth light-emitting unit 130d and the fifth light-emitting unit 130e.

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

[0107] The first packaging section 150a and the second packaging section 150b provided in the embodiments of this application will be described below.

[0108] In some embodiments, see Figure 4aThe orthographic projection of the extension 152 of the first encapsulation portion 150a on the substrate 110 overlaps with the orthographic projection of the extension 152 of the second encapsulation portion 150b on the substrate 110, making it difficult for the first encapsulation portion 150a and the isolation structure 120, as well as the second encapsulation portion 150b and the isolation structure 120, to peel off. This improves the encapsulation effect of the first encapsulation portion 150a and the second encapsulation portion 150b and alleviates 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 130a and the second light-emitting unit 130b are arranged along the first direction X, which is perpendicular to the thickness direction (i.e., direction Z) of the substrate 110.

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

[0111] In some embodiments, see Figure 4a The extension 152 of the first encapsulation portion 150a includes a first extension 1521, and the extension 152 of the second encapsulation portion 150b includes a second extension 1522. The first extension 1521 and the second extension 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 a portion of the second extension 1522 is located on the side of the first extension 1521 that is away from the substrate 110. This makes it difficult for the first encapsulation portion 150a and the isolation structure 120, as well as the second encapsulation portion 150b and the isolation structure 120, to peel off. This improves the encapsulation effect of the first encapsulation portion 150a and the second encapsulation portion 150b and alleviates the dark spot phenomenon of the display panel 100.

[0112] For example, the overlap size of the orthographic projection of the first extension 1521 on the substrate 110 and the orthographic projection of the second extension 1522 on the substrate 110 is greater than or equal to 1 μm. This results in a large overlap size between the first extension 1521 and the second extension 1522, making it difficult to peel off between them. Consequently, it also makes it difficult to peel off between the first encapsulation portion 150a and the isolation structure 120, and between the second encapsulation portion 150b and the isolation structure 120. This improves the encapsulation effect of the first encapsulation portion 150a and the second encapsulation portion 150b, and alleviates the dark spot phenomenon of the display panel 100. For example, the overlap size can be any value of 1 μm, 1.5 μm, 2 μm, 2.5 μm, or greater than 1 μm.

[0113] In some embodiments, see Figure 4a The extension 152 of the second encapsulation portion 150b also includes a third extension 1523. The third extension 1523 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 1523 is located between the second extension 1522 and the main body portion 151 of the second encapsulation portion 150b. The second extension 1522 and the main body portion 151 of the second encapsulation portion 150b are connected through the third extension 1523. The third extension 1523 and the first extension 1521 are arranged along the first direction X.

[0114] For example, the thickness of the encapsulation portion 150 ranges from 1μm to 2.4μm. This avoids the encapsulation portion 150 being too thin, which would fail to meet the requirements for moisture isolation, and also avoids the encapsulation portion 150 being too thick. This can shorten the manufacturing time, improve production efficiency, and also contribute to the thinning of the display panel 100. For example, the thickness of the encapsulation portion 150 can be 1μm, 1.5μm, 2μm, 2.4μm, or any value between 1μm and 2.4μm.

[0115] For example, the material of the encapsulation part 150 is an inorganic material, and the encapsulation part 150 formed of inorganic material has a better isolation effect on water vapor.

[0116] For example, the material of the package 150 includes at least one of silicon nitride, silicon oxide, and silicon oxynitride.

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

[0118] For example, the shapes of the first side 1551 and the second side 1552 are adapted to each other, which helps to reduce the size of the third gap 183 between the first side 1551 and the second side 1552 along the first direction X. This makes it difficult for reagents in the wet process to invade the third gap 183, reduces the force exerted by the wet process on the extension 152 of the first encapsulation part 150a and the second encapsulation part 150b, improves the encapsulation effect of the first encapsulation part 150a and the second encapsulation part 150b, and alleviates the dark spot phenomenon of the display panel 100.

[0119] In some embodiments, see Figure 4a At least one of the angles between the first side surface 1551 and the first top surface 1531, and between the second side surface 1552 and the second bottom surface 1542, is less than 90°. For example, the angles between the first side surface 1551 and the first top surface 1531, and between the second side surface 1552 and the second bottom surface 1542 are all less than 90°. This makes it difficult for the reagents in the wet process to invade the third gap 183 through the first gap 181, reduces the force exerted by the wet process on the extensions 152 of the first encapsulation portion 150a and the second encapsulation portion 150b, improves the encapsulation effect of the first encapsulation portion 150a and the second encapsulation portion 150b, and alleviates the dark spot phenomenon of the display panel 100. In addition, the first extension 1521 is fitted between the third extension 1523 and the second extension 1522 so that the extension 152 of the first encapsulation portion 150a and the extension 152 of the second encapsulation portion 150b are mutually positioned along the thickness direction of the substrate 110, thereby better alleviating the peeling phenomenon between the extension 152 of the first encapsulation portion 150a and the second encapsulation portion 150b and the isolation structure 120.

[0120] For example, see Figure 4a The first side surface 1551 is an inclined surface. The end of the first side surface 1551 near the substrate 110 is inclined in a direction away from the second side surface 1552 relative to the end away from the substrate 110. This makes the structure of the first side surface 1551 simpler and helps to reduce the difficulty of manufacturing the first side surface 1551.

[0121] Alternatively, the first side surface 1551 can be curved, which helps to increase the extension length of the third gap 183. This makes it less likely for reagents from the wet process to invade the fourth gap 184 and the second gap 182 through the third gap 183, 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. When the first side surface 1551 is curved, the first side surface 1551 has a virtual cross-section (the virtual cross-section is not a real surface). The first side surface 1551 is tangent to the virtual cross-section, and the angle between the first side surface 1551 and the first top surface 1531 is the angle between the virtual cross-section and the first top surface 1531.

[0122] For example, the second side surface 1552 is an inclined surface. The end of the second side surface 1552 closest to the substrate 110 is inclined towards the first side surface 1551 relative to the end furthest from the substrate 110. This makes the structure of the second side surface 1552 simpler and helps reduce the manufacturing difficulty of the second side surface 1552. Alternatively, the second side surface 1552 can be an arc surface, which helps to increase the extension length of the third gap 183. This makes it less likely for reagents in the wet process to invade the fourth gap 184 and the second gap 182 through the third gap 183, 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.

[0123] For example, the density of the first extension 1521 gradually increases from the substrate 110 to the isolation structure 120, so that the compactness of the first extension 1521 gradually increases from the substrate 110 to the isolation structure 120, and the etching rate of the first extension 1521 gradually decreases from the substrate 110 to the isolation structure 120, so as to achieve an angle between the first side surface 1551 and the first top surface 1531, and an angle between the second side surface 1552 and the second bottom surface 1542 that is less than 90 degrees. 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 formation speed of the first encapsulation portion 150a (e.g., gradient film formation), so as to achieve a gradual increase in the density of the first extension 1521 from the substrate 110 to the isolation structure 120.

[0124] In 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] For example, the end of the first side 1551 away from the substrate 110 can contact the end of the second side 1552 away from the substrate 110. The end of the first side 1551 near the substrate 110 and the end of the second side 1552 near the substrate 110 are spaced apart to form a third gap 183. Thus, 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 sealing the third gap 183. This prevents reagents from the wet process from intruding into the fourth gap 184 and the second gap 182, thereby better mitigating the peeling phenomenon between the first encapsulation portion 150a, the second encapsulation portion 150b, and the isolation structure 120. At this time, the light-emitting functional element 133 and the second electrode 132 in the third gap 183 and the second gap 182 are both retained.

[0126] In other embodiments, see Figure 6-Figure 8 The encapsulation portion 150 includes a plurality of sub-encapsulation portions 157 arranged along the thickness direction of the substrate 110. Each of the plurality of sub-encapsulation portions 157 extends from a corresponding isolation opening 124 to the side of the isolation structure 120 opposite to the substrate 110. In the same encapsulation portion 150, the extension lengths of two adjacent sub-encapsulation portions 157 along the first direction X are different, which is beneficial to extend the extension length of the third gap 183 and increase the bending degree of the third gap 183. This makes it less likely for reagents in the wet process to invade the fourth gap 184 and the second gap 182 through the third gap 183, 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.

[0127] For example, in the same encapsulation portion 150, the densities of two adjacent sub-encapsulation portions 157 are different, thereby facilitating the achievement of different extension lengths of two adjacent sub-encapsulation portions 157 along the first direction X in the same encapsulation portion 150. For example, the density of the two adjacent sub-encapsulation portions 157 can be controlled by controlling the film formation rate of the two adjacent sub-encapsulation portions 157. Alternatively, the materials of the two adjacent sub-encapsulation portions 157 can be different, thereby achieving different densities of the two adjacent sub-encapsulation portions 157.

[0128] For example, in the same package 150, the outer contours of the orthographic projections of two adjacent sub-packages 157 on the substrate 110 are spaced apart, thereby facilitating the realization that the extension lengths of two adjacent sub-packages 157 in the same package 150 along the first direction X are different.

[0129] For example, in the same packaging section 150, the number of sub-packaging sections 157 can be any number of 2, 3, 4, or greater than or equal to 5. When there are two sub-packaging sections 157 in the same packaging section 150, the number of sub-packaging sections 157 is small, which can reduce the manufacturing difficulty and cost of the packaging section 150.

[0130] For example, the thickness of the sub-encapsulation portion 157 is in the range of 0.4μm-1.2μm, which can avoid the sub-encapsulation portion 157 being too thin, reduce the manufacturing difficulty of the sub-encapsulation portion 157, improve the continuity of the sub-encapsulation portion 157, and also avoid the sub-encapsulation portion 157 being too thick, thereby reducing the manufacturing time and cost of the sub-encapsulation portion 157, which is conducive to the thinning of the display panel 100.

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

[0132] For example, in the same package 150, the one furthest from the substrate 110 among the plurality of sub-packages 157 is configured as the outer sub-package. In the second package 150b, the extension length of the outer sub-package along the first direction X is greater than the extension length of the remaining sub-packages 157 along the first direction X, thereby enabling the outer sub-package to provide better protection for the remaining sub-packages 157.

[0133] For example, in the second package portion 150b, the density of the outer sub-package portion is greater than the density of the remaining sub-package portions 157, thereby facilitating the realization that the extension length of the outer sub-package portion along the first direction X is greater than the extension length of the remaining sub-package portions 157 along the first direction X.

[0134] For example, in the same package 150, the one closest to the substrate 110 among the plurality of sub-packages 157 is configured as the inner sub-package. At least a portion of the inner sub-package of the second extension 1522 is located on the side of the first extension 1521 facing away from the substrate 110, which helps to reduce the size of the third gap 183 along the first direction X at each point, thereby making it less likely for reagents from the wet process to invade the third gap 183. At this time, a portion of the surface of the inner sub-package of the second package 150b is configured as the second side surface 1552.

[0135] See Figure 6 In a first embodiment where the first encapsulation portion 150a includes a plurality of sub-encapsulation portions 157, in the first extension portion 1521, the extension length of the plurality of sub-encapsulation portions 157 along the first direction X decreases sequentially from the substrate 110 to the isolation structure 120. This facilitates extending the extension length of the third gap 183 and increasing the bending degree of the third gap 183, making it less likely for reagents in the wet process to invade the fourth gap 184 and the second gap 182 through the third gap 183. This improves the encapsulation effect of the first encapsulation portion 150a and the second encapsulation portion 150b and alleviates the dark spot phenomenon of the display panel 100.

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

[0137] For example, at least one of the first side surface 1551 and the second side surface 1552 is a stepped surface, for example, see Figure 6 Both the first side surface 1551 and the second side surface 1552 are stepped surfaces. The first side surface 1551 includes a first sub-surface 1561 and a plurality of second sub-surfaces 1562. Adjacent second sub-surfaces 1562 are connected through 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. Adjacent fourth sub-surfaces 1564 are connected through 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 correspondingly arranged, with the third sub-surface 1563 located on the side of the corresponding first sub-surface 1561 facing away from the substrate 110. The second sub-surfaces 1562 and the fourth sub-surfaces 1564 are correspondingly arranged, and the second sub-surfaces 1562 and the corresponding fourth sub-surfaces 1564 are arranged opposite each other along the first direction X.

[0138] For example, 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 the substrate 110 at an angle.

[0139] For example, 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 the substrate 110 at an angle.

[0140] See Figure 7 In a second embodiment where the first encapsulation portion 150a includes a plurality of sub-encapsulation portions 157, in the first extension portion 1521, the extension length of the plurality of sub-encapsulation portions 157 along the first direction X increases sequentially from the substrate 110 to the isolation structure 120, thereby enabling the outer sub-encapsulation portions of the first extension portion 1521 to provide better protection for the remaining sub-encapsulation portions 157 of the first extension portion 1521.

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

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

[0143] For example, the first side 1551 is in contact with the side of the first protrusion 161 facing away from the substrate 110, thereby improving the connection stability of the extension 152 of the first package portion 150a and the extension 152 of the second package portion 150b, which helps to alleviate the peeling phenomenon between the first package portion 150a, the second package 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 entering the fourth gap 184 and the second gap 182, thereby better alleviating the peeling phenomenon between the first package portion 150a, the second package portion 150b and the isolation structure 120.

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

[0145] See Figure 8 In a third embodiment where the first encapsulation portion 150a includes a plurality of sub-encapsulation portions 157, in the first extension portion 1521, the plurality of sub-encapsulation portions 157 include a first sub-encapsulation portion 1571 and a plurality of second sub-encapsulation portions 1572. A first sub-encapsulation portion 1571 is disposed between two adjacent second sub-encapsulation portions 1572. The extension length of the first sub-encapsulation portion 1571 along the first direction X is less than the extension length of the second sub-encapsulation portion 1572 along the first direction X, thereby enabling the second sub-encapsulation portion 1572 to better protect the first sub-encapsulation portion 1571.

[0146] For example, the density of the first sub-package portion 1571 is less than the density of the second sub-package portion 1572, thereby facilitating the realization that the extension length of the first sub-package portion 1571 along the first direction X is less 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-encapsulation portion 1571 and two adjacent second sub-encapsulation portions 1572 together form a groove 163. A second protrusion 162 is provided on the second side 1552. The second protrusion 162 is correspondingly provided with the groove 163 and is inserted into the corresponding groove 163. Through the cooperation of the groove 163 and the second protrusion 162, the extension portion 152 of the first encapsulation portion 150a and the extension portion 152 of the second encapsulation portion 150b are mutually limited along the thickness direction of the substrate 110, thereby better alleviating the peeling phenomenon between the first encapsulation portion 150a, the second encapsulation portion 150b and the isolation structure 120.

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

[0149] It is understood that in any of the three embodiments in which the first packaging portion 150a includes a plurality of sub-packaging portions 157, the second packaging portion 150b includes a plurality of sub-packaging portions 157, and the length relationship of the extension lengths of the plurality of sub-packaging portions 157 of the second packaging portion 150b along the first direction X may be the same as or different from that of the plurality of sub-packaging portions 157 of the first packaging portion 150a.

[0150] In some embodiments, see Figure 2 and Figure 4a At least one of the first side 1551 and the second side 1552 has its orthographic projection on the substrate 110 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 4aA first gap 181 is formed between the first top surface 1531 and the second extension 1522; a second gap 182 is formed between the second bottom surface 1542 and the isolation structure 120; a third gap 183 is formed between at least a portion of the first side surface 1551 and at least a portion of the second side surface 1552; and a fourth gap 184 is formed between the first bottom surface 1541 and the isolation structure 120. Reagents from the wet process can penetrate the second gap 182 and the fourth gap 184 after passing through the first gap 181 and the third gap 183.

[0152] The pixel limiting layer 170 provided in the embodiments of this application will be described below.

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

[0154] For example, 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. A portion of the light-emitting functional element 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 limiting layer 170 may not be provided 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 thinner and lighter.

[0156] The following provides a further description of the light-emitting unit 130 provided in the embodiments of this application.

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

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

[0159] For example, one of the first electrode 131 and the second electrode 132 can be an anode, and the other of the first electrode 131 and the second electrode 132 can be a cathode. This application embodiment is illustrated using the example of the first electrode 131 being the anode and the second electrode 132 being the cathode.

[0160] For example, the first electrode 131 can be electrically connected to a pixel driving circuit, which can be electrically connected to a first power line. The second electrode 132 can be electrically connected to a second power line. One of the first and second power lines 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] For example, the light-emitting functional component 133 may include an emission layer (EML). Additionally, the light-emitting functional component 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 block layer (HBL), and an electron block layer (EBL).

[0162] In some embodiments, the process of forming the light-emitting functional element 133, the second electrode 132, and the first encapsulation portion 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 encapsulation material layer; then, performing a first patterning process on the first light-emitting functional material layer, the first conductive material layer, and the first encapsulation material layer; retaining the first light-emitting functional material layer located in the first isolation opening to form the light-emitting functional element 133 of the first light-emitting unit 130a; retaining the first conductive material layer located in the first isolation opening to form the second electrode 132 of the first light-emitting unit 130a; and retaining the first encapsulation material layer to form the first encapsulation portion 150a. During the first patterning process, the fourth gap 184 ( Figure 3 The first light-emitting functional material layer and the first conductive material layer in the first light-emitting unit 130a can be removed so that at least one of the second electrode 132 and the light-emitting functional element 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 the first isolation opening.

[0163] In some embodiments, the process of forming the light-emitting functional element 133, the second electrode 132, and the second encapsulation portion 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 encapsulation material layer; then, performing a second patterning process on the second light-emitting functional material layer, the second conductive material layer, and the second encapsulation material layer; retaining the second light-emitting functional material layer located in the second isolation opening to form the light-emitting functional element 133 of the second light-emitting unit 130b; retaining the second conductive material layer located in the second isolation opening to form the second electrode 132 of the second light-emitting unit 130b; and retaining the second encapsulation material layer to form the second encapsulation portion 150b. During the second patterning process, the first gap 181 ( Figure 4a The second light-emitting functional material layer and the second conductive material layer in the first gap 181 can be removed so that both the second electrode 132 and the light-emitting functional element 133 are located outside the first gap 181. The isolation opening 124 corresponding to the second light-emitting unit 130b is the second isolation opening.

[0164] In some embodiments, see Figure 4b Because the etching reagent first penetrates the first gap 181 and then the third gap 183 during the second patterning process, and it is more difficult for the etching reagent to penetrate the third gap 183, at least one of the second electrode 132 and the light-emitting functional element 133 in the third gap 183 can be retained. This helps to alleviate the peeling phenomenon between the first package portion 150a, the second package portion 150b and the isolation structure 120. The light-emitting functional element 133 may include organic materials, which are easier to remove by the etching reagent than the second electrode 132. Therefore, the second electrode 132 in the third gap 183 can be retained, while the light-emitting functional element 133 may not be retained.

[0165] For example, see Figure 4b During the second patterning process, the etching reagent first penetrates the first gap 181, then the third gap 183, and finally the second gap 182. This further increases the difficulty for the etching reagent to penetrate the second gap 182, ensuring that at least one of the second electrode 132 and the light-emitting functional element 133 is retained within the second gap 182. This helps alleviate the peeling phenomenon between the first package portion 150a, the second package portion 150b, and the isolation structure 120. The light-emitting functional element 133 is more easily removed by the etching reagent than the second electrode 132; therefore, the second electrode 132 can be retained in the second gap 182, while the light-emitting functional element 133 may not be retained.

[0166] For example, see Figure 4c , Figure 7 , Figure 8Because the third gap 183 is blocked, reagents from the wet process can be prevented from passing through the third gap 183, and reagents from the wet process can be prevented from entering the fourth gap 184 and the second gap 182. At least some of the light-emitting functional components 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 in the image).

[0167] The isolation structure 120 provided in the embodiments of this application will be further described below.

[0168] In some embodiments, the isolation structure 120 may refer to an undercut structure that is larger at the top and smaller at the bottom, capable of separating adjacent light-emitting functional elements 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] For example, the cross-sectional shape of the isolation structure 120 can be an inverted trapezoid with a larger top and a smaller bottom, a "T" shape, or an "I" shape, etc.

[0170] In some embodiments, see Figure 1 The isolation structure 120 may include a first isolation portion 121 and a blocking portion 123. The first isolation portion 121 is located on the side of the blocking portion 123 facing the substrate 110. 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 that is "larger at the top and smaller at the bottom", that is, the isolation structure 120 has an "eaves". In this way, during the formation of the light-emitting functional element 133, the isolation structure 120 can separate two adjacent light-emitting functional elements 133.

[0171] In some embodiments, see Figure 1 The isolation structure 120 may include a second isolation portion 122, which may be located on the side of the first isolation portion 121 opposite to the blocking portion 123. 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 embodiments where the material of the isolation structure 120 is a conductive material, by providing the stacked first isolation portion 121, second isolation portion 122, and blocking portion 123, the resistance of the isolation structure 120 can be reduced, thereby reducing the power consumption of the display panel 100.

[0172] For example, at least one of the first isolation portion 121, the second isolation portion 122, and the blocking portion 123 may be made of 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, and molybdenum, or alloys, or conductive oxides, such as any one or more of 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, and indium oxide. In other examples, at least one of the first isolation portion 121, the second isolation portion 122, and the blocking portion 123 may be made of an insulating material; this embodiment of the application does not limit this.

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

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

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

[0176] In embodiments 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 can be electrically connected to the isolation structure 120. This allows the second electrodes 132 located within each isolation opening 124 to be connected as a whole via the isolation structure 120, facilitating the electrical connection of the second electrode 132 to the second power line via the isolation structure 120 for applying a power supply voltage to the second electrode 132, thereby optimizing the wiring layout of the display panel 100.

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

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

[0179] In embodiments where both the first isolation portion 121 and the second isolation portion 122 are made of 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 can be 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 located on the side of the encapsulation portion 150 away from the substrate 110, and 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 located on the side of the first encapsulation layer away from the substrate 110, and the material of the second encapsulation layer may include inorganic materials.

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

[0183] In some embodiments, the display panel 100 may include a cover plate located on the side of the touch layer opposite to the substrate 110. The cover plate is used to protect the display panel from scratches when a 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 connecting layer may be provided between the cover plate and the touch layer to connect the cover plate and the touch layer for a stable connection; additionally, the connecting layer may also provide a flat surface to facilitate the connection between the cover plate and the touch layer. For example, the connecting layer may be formed of optically transparent adhesive.

[0185] When using the terms “including,” “having,” and “comprising” as described herein, another component may be added unless explicitly qualifying terms such as “only,” “consisting of,” etc. are used. Unless otherwise stated, singular terms may include plural forms and should not be construed as having a quantity of one.

[0186] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above 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 embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A display panel, characterized in that, include: substrate; An isolation structure is disposed on one side of the substrate, and the isolation structure encloses and forms a plurality of isolation openings; Multiple light-emitting units are disposed on one side of the substrate, and the multiple light-emitting units are correspondingly disposed with the multiple isolation openings, with at least a portion of the light-emitting units 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 different colors; Multiple encapsulation portions are provided corresponding to the multiple light-emitting units. Each encapsulation portion includes a main body and an extension portion. The main body is disposed on the side of the corresponding light-emitting unit away from the substrate and on the sidewall of the isolation opening. The extension portion is disposed on the side of the isolation structure away from the substrate. The multiple encapsulation portions include adjacent first encapsulation portions and second encapsulation portions. The first encapsulation portion is disposed corresponding to the first light-emitting unit, and the second encapsulation portion is disposed corresponding to the second light-emitting unit. Wherein, the orthographic projection of the extension of the first packaging portion on the substrate overlaps with the orthographic projection of the extension of the second packaging portion on the substrate; In the same packaging section, the packaging section includes a plurality of sub-packaging sections arranged along the thickness direction of the substrate. Each of the plurality of sub-packaging sections extends from the corresponding isolation opening to the side of the isolation structure away from the substrate. The extension lengths of two adjacent sub-packaging sections along a first direction are different. The first direction is perpendicular to the thickness direction of the substrate.

2. The display panel according to claim 1, characterized in that, The extension of the first encapsulation portion includes a first extension, and the extension of the second encapsulation portion includes a second extension. Both the first extension and the second extension are located on the side of the isolation structure between the first light-emitting unit and the second light-emitting unit that faces away from the substrate. At least a portion of the second extension is located on the side of the first extension that faces away from the substrate.

3. The display panel according to claim 2, characterized in that, The extension of the second encapsulation portion further includes a third extension, which is located on the side of the isolation structure between the first light-emitting unit and the second light-emitting unit away from the substrate. The second extension and the main body of the second encapsulation portion are connected through the third extension, and the third extension and the first extension are arranged along the first direction.

4. The display panel according to claim 1, characterized in that, The first light-emitting unit and the second light-emitting unit are arranged along the first direction.

5. The display panel according to claim 1, characterized in that, The thickness of the encapsulation portion ranges from 1μm to 2.4μm.

6. The display panel according to claim 1, characterized in that, The material of the encapsulation portion includes at least one of silicon nitride, silicon oxide, and silicon oxynitride.

7. The display panel according to claim 3, characterized in that, The side of the first extension facing the third extension is a first side surface, the side of the first extension away from the substrate is a first top surface, and the side of the first extension close to the substrate is a first bottom surface; the side of the third extension facing the first extension is a second side surface, the side of the third extension away from the substrate is a second top surface, and the side of the third extension facing the substrate is a second bottom surface.

8. The display panel according to claim 7, characterized in that, The overlap dimension between the orthographic projection of the first extension on the substrate and the orthographic projection of the second extension on the substrate is greater than or equal to 1 μm.

9. The display panel according to claim 7, characterized in that, The shapes of the first side and the second side are adapted to each other.

10. The display panel according to claim 7, characterized in that, At least one of the angles between the first side surface and the first top surface, and between the second side surface and the second bottom surface, is less than 90°.

11. The display panel according to claim 7, characterized in that, The first side is an inclined surface, with the end of the first side near the substrate inclined in a direction away from the second side relative to the end away from the substrate; or, the first side is an arc surface.

12. The display panel according to claim 7, characterized in that, The second side is an inclined surface, with the end of the second side near the substrate inclined toward the first side relative to the end away from the substrate; or, the second side is an arc surface.

13. The display panel according to claim 7, characterized in that, The density of the first extension gradually increases from the substrate to the isolation structure.

14. The display panel according to claim 7, characterized in that, In the same package, the outer contours of the orthographic projections of two adjacent sub-packages on the substrate are spaced apart.

15. The display panel according to claim 7, characterized in that, Within the same encapsulation section, the densities of two adjacent sub-encapsulation sections are different.

16. The display panel according to claim 7, characterized in that, Within the same packaging unit, there are two sub-packaging units.

17. The display panel according to claim 7, characterized in that, The thickness of the sub-encapsulation part ranges from 0.4μm to 1.2μm.

18. The display panel according to claim 7, characterized in that, In the same package, the one furthest from the substrate among the plurality of sub-packages is configured as the outer sub-package; in the second package, the extension length of the outer sub-package along the first direction is greater than the extension length of the remaining sub-packages along the first direction.

19. The display panel according to claim 18, characterized in that, In the second encapsulation section, the density of the outer sub-encapsulation section is greater than the density of the remaining sub-encapsulation sections.

20. The display panel according to claim 7, characterized in that, In the same package, the one of the plurality of sub-packages closest to the substrate is configured as the inner sub-package; the inner sub-package of at least a portion of the second extension is located on the side of the first extension away from the substrate.

21. The display panel according to claim 20, characterized in that, A portion of the inner sub-package portion of the second package portion is configured as the second side surface.

22. The display panel according to claim 7, characterized in that, In the first extension, the extension length of the plurality of sub-package portions along the first direction decreases sequentially from the substrate to the isolation structure.

23. The display panel according to claim 7, characterized in that, In the first packaging section, the density of the plurality of sub-packaging sections decreases sequentially from the substrate to the isolation structure.

24. The display panel according to claim 7, characterized in that, At least one of the first side and the second side is a stepped surface.

25. The display panel according to claim 7, characterized in that, The first side surface includes a first sub-surface and a plurality of second sub-surfaces, with adjacent second sub-surfaces connected by the first sub-surfaces, and adjacent first sub-surfaces and second sub-surfaces intersecting each other; the second side surface includes a third sub-surface and a plurality of fourth sub-surfaces, with adjacent fourth sub-surfaces connected by the third sub-surfaces, and adjacent third sub-surfaces and fourth sub-surfaces intersecting each other; the first sub-surface and the third sub-surface are correspondingly disposed, with the third sub-surface located on the side of the corresponding first sub-surface facing away from the substrate, and the second sub-surface and the fourth sub-surface are correspondingly disposed, with the second sub-surface and the corresponding fourth sub-surface disposed opposite to each other along the first direction.

26. The display panel according to claim 25, characterized in that, At least one of the first sub-face and the third sub-face is parallel to the substrate.

27. The display panel according to claim 25, characterized in that, At least one of the second sub-face and the fourth sub-face is perpendicular to the substrate.

28. The display panel according to claim 7, characterized in that, In the first extension, the extension length of the plurality of sub-package portions along the first direction increases sequentially from the substrate to the isolation structure.

29. The display panel according to claim 7, characterized in that, In the first packaging section, the density of the plurality of sub-packaging sections increases sequentially from the substrate to the isolation structure.

30. The display panel according to claim 28, characterized in that, A first protrusion is provided on the second side surface. The first protrusion and the second extension are spaced apart along the thickness direction of the substrate, and a portion of the first extension is inserted between the second extension and the first protrusion.

31. The display panel according to claim 30, characterized in that, The first side surface contacts the surface of the first protrusion that is away from the substrate.

32. The display panel according to claim 30, characterized in that, The first side surface contacts the surface of the first protrusion that is away from the second side surface.

33. The display panel according to claim 7, characterized in that, In the first extension, the plurality of sub-package portions include a first sub-package portion and a plurality of second sub-package portions, with a first sub-package portion disposed between two adjacent second sub-package portions, and the extension length of the first sub-package portion along the first direction is less than the extension length of the second sub-package portion along the first direction.

34. The display panel according to claim 33, characterized in that, The density of the first sub-package is less than the density of the second sub-package.

35. The display panel according to claim 33, characterized in that, The first sub-encapsulation part and two adjacent second sub-encapsulation parts together form a groove. The second side is provided with a second protrusion, which is correspondingly provided with the groove and is inserted into the corresponding groove.

36. The display panel according to claim 35, characterized in that, The groove sidewall on the side away from the substrate includes a first groove sidewall. In the corresponding second protrusion and the groove, at least one of the groove bottom wall and the first groove sidewall is in contact with the second protrusion.

37. The display panel according to claim 7, characterized in that, The angle between the first side surface and the first top surface is less than 90°, and the end of the first side surface away from the substrate is in contact with the end of the second side surface away from the substrate.

38. The display panel according to claim 7, characterized in that, The end of the first side closest to the substrate is spaced apart from the end of the second side closest to the substrate.

39. The display panel according to any one of claims 7-38, characterized in that, The light-emitting unit includes a first electrode, a light-emitting functional component, and a second electrode arranged sequentially in a direction away from the substrate.

40. The display panel according to claim 39, characterized in that, A first gap exists between the first top surface and the second extension, and the second electrode and the light-emitting functional component are both located outside the first gap.

41. The display panel according to claim 40, characterized in that, A second gap exists 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.

42. The display panel according to claim 39, characterized in that, A third gap exists between at least a portion of the first side and at least a portion of the second side, and at least one of the second electrode and the light-emitting functional element is located in the third gap.

43. The display panel according to claim 42, characterized in that, There is a fourth gap between the first bottom surface and the isolation structure, and at least one of the second electrode and the light-emitting functional element is located outside at least part of the fourth gap.

44. The display panel according to any one of claims 7-38, characterized in that, The isolation structure includes a first isolation portion and a blocking portion. The first isolation portion is located on the side of the blocking portion facing the substrate, and the orthographic projection of the first isolation portion on the substrate is located within the orthographic projection of the blocking portion on the substrate.

45. The display panel according to claim 44, characterized in that, At least one of the first side and the second side has its orthographic projection on the substrate located within the orthographic projection of the first isolation portion on the substrate.

46. ​​The display panel according to claim 44, characterized in that, The isolation structure includes a second isolation portion located on the 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.

47. A display panel, characterized in that, include: substrate; An isolation structure is disposed on one side of the substrate, and the isolation structure encloses and forms a plurality of isolation openings; Multiple light-emitting units are disposed on one side of the substrate, and the multiple light-emitting units are correspondingly disposed with the multiple isolation openings, with at least a portion of the light-emitting units 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; Multiple encapsulation portions are provided corresponding to the multiple light-emitting units. Each encapsulation portion includes a main body and an extension portion. The main body is disposed on the side of the corresponding light-emitting unit away from the substrate and on the sidewall of the isolation opening. The extension portion is disposed on the side of the isolation structure away from the substrate. The multiple encapsulation portions include a third encapsulation portion, a fourth encapsulation portion, and a fifth encapsulation portion. The third encapsulation portion is disposed corresponding to the third light-emitting unit, the fourth encapsulation portion is disposed corresponding to the fourth light-emitting unit, and the fifth encapsulation portion is disposed corresponding to the fifth light-emitting unit. In the adjacent third and fourth packaging portions, the orthographic projection of the extension of the third packaging portion on the substrate overlaps with the orthographic projection of the extension of the fourth packaging portion on the substrate. In the same packaging section, the packaging section includes a plurality of sub-packaging sections arranged along the thickness direction of the substrate. Each of the plurality of sub-packaging sections extends from the corresponding isolation opening to the side of the isolation structure away from the substrate. The extension lengths of two adjacent sub-packaging sections along a first direction are different. The first direction is perpendicular to the thickness direction of the substrate.

48. The display panel according to claim 47, characterized in that, In the adjacent fourth and fifth packaging portions, the orthographic projection of the extension of the fourth packaging portion on the substrate overlaps with the orthographic projection of the extension of the fifth packaging portion on the substrate.

49. The display panel according to claim 47, characterized in that, In the adjacent third and fifth packaging portions, the orthographic projection of the extension of the third packaging portion on the substrate overlaps with the orthographic projection of the extension of the fifth packaging portion on the substrate.

50. The display panel according to claim 47, characterized in that, In the adjacent third and fourth packaging portions, the extension of the fourth packaging portion is at least partially located on the side of the third packaging portion away from the substrate.

51. The display panel according to claim 47, characterized in that, In the adjacent fourth and fifth packaging portions, the extension of the fifth packaging portion is at least partially located on the side of the fourth packaging portion away from the substrate.

52. The display panel according to claim 47, characterized in that, In the adjacent third and fifth packaging portions, the extension of the fifth packaging portion is at least partially located on the side of the third packaging portion away from the substrate.

53. A display device, characterized in that, Includes the display panel described in any one of claims 1-52.

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