Display panel and display device

Abstract

The invention discloses a display panel and a display device. The display panel includes: a substrate; the isolation structure is arranged on the substrate and encloses a plurality of isolation openings; the light-emitting layer comprises light-emitting units located in the isolation openings; the first packaging layer comprises a first packaging part for packaging each light-emitting unit; the conductive layer is located on the side, away from the substrate, of the first packaging layer; the plurality of isolation openings comprise a first opening and a second opening which are adjacent to each other, the plurality of light-emitting units comprise a first light-emitting unit located in the first opening and a second light-emitting unit located in the second opening, and the first packaging part comprises a first sub-part used for packaging the first light-emitting unit and a second sub-part used for packaging the second light-emitting unit; on the side, deviating from the substrate, of the isolation structure, part of the first sub-part is located on the side, deviating from the substrate, of the second sub-part, and the conductive layer is located on the side, deviating from the substrate, of the first sub-part. According to the display panel and the display device, the internal resistance of the display panel can be reduced, and then the display effect is improved.

Description

Technical Field

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

[0002] In the process of manufacturing a display panel, if isolation columns are used to separate the sub-pixels, then when the encapsulation layers of the sub-pixels are manufactured, the encapsulation layers of adjacent sub-pixels will form grooves on top of the isolation columns, causing the signal lines set at the isolation columns to be partially connected or disconnected, resulting in an increase in the resistance of the signal lines, which affects the display effect of the display panel. Summary of the Invention

[0003] Embodiments of the present application provide a display panel and a display device, which can reduce the internal resistance of signal lines and thereby improve display effects.

[0004] In a first aspect, an embodiment of the present application provides a display panel, comprising: a substrate; an isolation structure, arranged on the substrate and enclosing a plurality of isolation openings; a light-emitting layer, comprising light-emitting units located in the isolation openings; a first encapsulation layer, comprising a first encapsulation portion for encapsulating each light-emitting unit; and a conductive layer located on a side of the first encapsulation layer facing away from the substrate; wherein the plurality of isolation openings comprise adjacent first and second openings, the plurality of light-emitting units comprise a first light-emitting unit located in the first opening and a second light-emitting unit located in the second opening, the first encapsulation portion comprises a first sub-portion for encapsulating the first light-emitting unit and a second sub-portion for encapsulating the second light-emitting unit, and on a side of the isolation structure facing away from the substrate, a portion of the first sub-portion is located on a side of the portion of the second sub-portion facing away from the substrate, and the conductive layer is located on a side of the first sub-portion facing away from the substrate.

[0005] According to an embodiment of the first aspect of the present application, the first sub-portion and / or the second sub-portion completely covers the isolation structure.

[0006] According to an embodiment of the first aspect of the present application, a first electrode is provided on the side of the first light-emitting unit facing away from the substrate, the first packaging part is located on the side of the first electrode facing away from the substrate, and a connecting hole is provided on at least one first packaging part, the connecting hole is located in the isolation opening, and the first electrode and the conductive layer are connected through the connecting hole via; preferably, the material of the isolation structure includes a conductive material, and the first electrode and the isolation structure are electrically connected.

[0007] According to an embodiment of the first aspect of the present application, the display panel also includes a pixel definition layer, the pixel definition layer includes a pixel defining portion and a plurality of pixel openings enclosed by the pixel defining portion, the pixel openings are connected to the isolation openings, and the light-emitting unit is arranged at the pixel opening; along the thickness direction of the display panel, the orthographic projection of the connecting hole overlaps with the orthographic projection of the pixel defining portion; preferably, the isolation structure is arranged on the side of the pixel defining portion away from the substrate, and along the thickness direction of the display panel, the orthographic projection of the connecting hole and the orthographic projection of the isolation structure are spaced apart.

[0008] According to an embodiment of the first aspect of the present application, along the thickness direction of the display panel, the orthographic projection of the conductive layer overlaps with the orthographic projection of the pixel defining portion; preferably, along the thickness direction of the display panel, the orthographic projection of the conductive layer is mesh-shaped, and the conductive layer encloses a plurality of grid openings, and the orthographic projection of the pixel opening is located within the orthographic projection of the grid opening.

[0009] According to an embodiment of the first aspect of the present application, the isolation structure is located on a side of the pixel defining portion facing away from the substrate, or a clearance opening is provided on the pixel defining portion, and the isolation structure is located in the clearance opening.

[0010] According to an embodiment of the first aspect of the present application, along the thickness direction of the display panel, the orthographic projection of the connecting hole of the first sub-section is located between the orthographic projection of the first opening and the orthographic projection of the second opening, and the orthographic projection of the connecting hole of the second sub-section is located on the side of the orthographic projection of the second opening away from the orthographic projection of the first opening.

[0011] According to an embodiment of the first aspect of the present application, the isolation structure includes a first surface, which is located on the side of the isolation structure facing away from the substrate; along the thickness direction of the display panel, a first gap is provided between the first sub-section and the second sub-section, and a second gap is provided between the first surface and the second sub-section; the first gap is connected to the second gap; preferably, along the direction from the first opening to the second opening, an end of the first gap close to the first opening is connected to an end of the second gap close to the first opening.

[0012] According to an embodiment of the first aspect of the present application, the isolation structure includes a first sublayer and a second sublayer stacked in a direction away from the substrate, and along the thickness direction of the display panel, the orthographic projection of the first sublayer is located within the orthographic projection of the second sublayer; preferably, it also includes a third sublayer, and the third sublayer is located on the side of the first sublayer facing the substrate, and along the thickness direction of the display panel, the orthographic projection of the first sublayer is located within the orthographic projection of the third sublayer.

[0013] In a second aspect, an embodiment of the present application further provides a display device, comprising the display panel of the embodiment of the first aspect of the present application.

[0014] In the display panel and display device provided by the embodiments of the present application, the first sub-portion of the first packaging portion encapsulates the first light-emitting unit, and the second sub-portion encapsulates the second light-emitting unit. On the side of the isolation structure facing away from the substrate, part of the first sub-portion is located on the side of the second sub-portion facing away from the substrate, so that at the isolation structure, the side of the first sub-portion facing away from the second sub-portion presents a nearly flat top surface, so that the conductive layer can be continuously arranged on the side of the first sub-portion facing away from the substrate, reducing the risk of local virtual connection or short circuit, thereby reducing the internal resistance of the display panel and improving the display effect of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 A schematic structural diagram of a display panel according to an embodiment of the present application.

[0017] Figure 2 for Figure 1 , a cross-sectional view of the display panel of an embodiment of the present application at section AA.

[0018] Figure 3 FIG. 2 is another structural schematic diagram of a display panel according to an embodiment of the present application.

[0019] Figure 4 for Figure 3 , a cross-sectional view of the display panel of an embodiment of the present application at section BB.

[0020] Figure 5 for Figure 3 , another cross-sectional view of the display panel of an embodiment of the present application at section BB.

[0021] Figure 6 FIG. 2 is another structural schematic diagram of a display panel according to an embodiment of the present application.

[0022] Figure 7 for Figure 6 , a cross-sectional view of the display panel of an embodiment of the present application at the CC section.

[0023] Figure 8 FIG. 2 is another structural schematic diagram of a display panel according to an embodiment of the present application.

[0024] Figure 9 for Figure 8 , a cross-sectional view of the display panel of an embodiment of the present application at the DD section.

[0025] Figure 10 for Figure 8 , another cross-sectional view of the display panel of an embodiment of the present application at the DD section.

[0026] Figure 11 for Figure 8 , another cross-sectional view of the display panel of an embodiment of the present application at the DD section.

[0027] Figure 12 A schematic structural diagram of a display device according to an embodiment of the present application.

[0028] Reference numerals:

[0029] 1. Substrate;

[0030] 2. Isolation structure; 21. Isolation opening; 21A. First opening; 21B. Second opening; 22. First surface; 23. First sublayer; 24. Second sublayer; 25. Third sublayer;

[0031] 3. Light-emitting layer; 31. Light-emitting unit; 31A. First light-emitting unit; 31B. Second light-emitting unit; 311. First electrode;

[0032] 4. First packaging layer; 41. First packaging portion; 41A. First sub-portion; 41B. Second sub-portion; 411. Communication hole;

[0033] 5. Conductive layer; 51. Mesh opening;

[0034] 6. Pixel definition layer; 61. Pixel defining portion; 611. Upper opening; 62. Pixel opening;

[0035] 100. Display panel; 200. Display device;

[0036] S1, first gap; S2, second gap. DETAILED DESCRIPTION

[0037] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the present application. However, it will be apparent to those skilled in the art that the present application can be implemented without the need for some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by illustrating the examples of the present application.

[0038] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The embodiments will be described in detail below with reference to the accompanying drawings.

[0039] Relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0040] It should be understood that when describing the structure of a component, when a layer or a region is referred to as being "on" or "over" another layer or region, it may mean that it is directly on the other layer or region, or that other layers or regions are included between it and the other layer or region. Furthermore, if the component is turned over, the layer or region will be "below" or "beneath" the other layer or region.

[0041] In this document, the term "and / or" simply describes a relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0042] It should be understood that in the embodiments of the present application, "B corresponding to A" means that B is associated with A and B can be determined based on A. However, it should also be understood that determining B based on A does not mean determining B based solely on A, but B can also be determined based on A and / or other information.

[0043] The applicant discovered that when the display panel separates each sub-pixel through an isolation structure and separately produces sub-pixels of different colors, the light-emitting unit of a certain color will be encapsulated when producing the light-emitting unit of the sub-pixel of that color. After the light-emitting units of sub-pixels of other colors are produced, at the isolation structure between two adjacent sub-pixels of different colors, the encapsulation layer of the two sub-pixels of different colors will cover a portion of the top of the side of the isolation structure facing away from the substrate. Therefore, a groove will be formed at the top of the side of the isolation structure facing away from the substrate. When further producing the signal line, a portion of the signal line will be wired at the isolation structure. Therefore, part of the signal line will cover the groove formed by the encapsulation layer. The groove will cause the signal line to be partially virtual connected or partially open, which will increase the internal resistance of the signal line, affect the signal transmission of the display panel, and further affect the display effect of the display panel.

[0044] In view of the above analysis, the applicant proposed a display panel and a display device. The display panel includes a substrate, an isolation structure, a light-emitting layer, a first encapsulation layer, and a conductive layer. The isolation structure encloses a plurality of isolation openings, and the isolation openings include adjacent first and second openings; the light-emitting layer includes a plurality of light-emitting units, and the light-emitting units include a first light-emitting unit located at the first opening and a second light-emitting unit located at the second opening; the first encapsulation layer includes a first encapsulation portion for encapsulating each light-emitting unit, the first sub-portion of the first encapsulation portion encapsulates the first light-emitting unit, and the second sub-portion encapsulates the second light-emitting unit; on the side of the isolation structure facing away from the substrate, part of the first sub-portion is located on the side of the second sub-portion facing away from the substrate, so that at the isolation structure, the side of the first sub-portion facing away from the second sub-portion presents a nearly flat top surface, so that the conductive layer can be continuously arranged on the side of the first sub-portion facing away from the substrate, reducing the risk of local virtual connection or short circuit, thereby reducing the internal resistance of the display panel and improving the display effect of the display panel.

[0045] Figure 1 A schematic structural diagram of a display panel according to an embodiment of the present application. Figure 2 for Figure 1 , a cross-sectional view of the display panel of an embodiment of the present application at section AA.

[0046] See also Figure 1 and Figure 2 An embodiment of the present application provides a display panel 100, comprising: a substrate 1; an isolation structure 2, disposed on the substrate 1 and enclosing a plurality of isolation openings 21; a light-emitting layer 3, comprising light-emitting units 31 located in the isolation openings 21; a first encapsulation layer 4, comprising a first encapsulation portion 41 for encapsulating each light-emitting unit 31; and a conductive layer 5, located on a side of the first encapsulation layer 4 facing away from the substrate 1; wherein the plurality of isolation openings 21 include adjacent first openings 21A and second openings 21B, the plurality of light-emitting units 31 include a first light-emitting unit 31A located in the first opening 21A and a second light-emitting unit 31B located in the second opening 21B, the first encapsulation portion 41 includes a first sub-portion 41A for encapsulating the first light-emitting unit 31A and a second sub-portion 41B for encapsulating the second light-emitting unit 31B, and on a side of the isolation structure 2 facing away from the substrate 1, a portion of the first sub-portion 41A is located on a side of a portion of the second sub-portion 41B facing away from the substrate 1, and the conductive layer 5 is located on a side of the first sub-portion 41A facing away from the substrate 1.

[0047] The substrate 1 can be a pre-made substrate 1 or can be directly manufactured. For example, the substrate 1 can be formed of a polymer material such as glass, polyimide (PI), polycarbonate (PC), polyethersulfone (PES), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyarylate (PAR), or fiberglass reinforced plastic (FRP). The substrate 1 can be transparent, translucent, or opaque.

[0048] The isolation structure 2 encloses a plurality of isolation openings 21. It is understood that the isolation openings 21 should correspond to the pixel openings 62. The plurality of isolation openings 21 include a first isolation opening 21 and a second isolation opening 21. The first isolation opening 21 and the second isolation opening 21 have no obvious structural difference. In the structure of the display panel 100 of the embodiment of the present application, the first isolation opening 21 and the second isolation opening 21 correspond to different colors of the pixel units.

[0049] The light emitting layer 3 includes light emitting units 31 located in the isolation opening 21 . The first light emitting unit 31A is located in the first opening 21A, and the second light emitting unit 31B is located in the second opening 21B. The first light emitting unit 31A and the second light emitting unit 31B correspond to pixel units of different colors.

[0050] It is understandable that in the embodiment of the present application, an array layer may be further included on one side of the substrate 1. The array layer may include a pixel circuit that can control the light-emitting unit 31 to display light. The isolation structure 2 and the light-emitting unit 31 are both located on the side of the array layer facing away from the substrate 1. The conductive layer 5 is located on the side of the first encapsulation layer 4 facing away from the substrate 1. The conductive layer 5 and the pixel circuit are respectively connected to the cathode and anode of the light-emitting unit 31 to form a loop to control the light-emitting unit 31 to display light. For example, the conductive layer 5 can be electrically connected to the cathode of the light-emitting unit 31, and can also be used to conduct cathode signals.

[0051] The multiple first encapsulation parts 41 of the first encapsulation layer 4 correspond to the light-emitting units 31. The first sub-part 41A of the first encapsulation part 41 encapsulates the first light-emitting unit 31A, and the second sub-part 41B encapsulates the second light-emitting unit 31B. When manufacturing the display panel 100 of the embodiment of the present application, the second light-emitting unit 31B can be manufactured first, then the second sub-part 41B, then the first light-emitting unit 31A, and then the first sub-part 41A. Therefore, on the side of the isolation structure 2 facing away from the substrate 1, part of the first sub-part 41A is located on the side of the second sub-part 41B facing away from the substrate 1. That is, on the top of the isolation structure 2 facing away from the substrate 1, the first sub-part 41A and the second sub-part 41B are stacked separately. Therefore, the first sub-part 41A and the second sub-part 41B can present a flat top surface as a whole on the top of the isolation structure 2 facing away from the substrate 1. In the process of manufacturing the display panel 100 of the embodiment of the present application, when manufacturing the conductive layer 5, the conductive layer 5 is located on the side of the first sub-portion 41A facing away from the substrate 1. Considering that the first sub-portion 41A and the second sub-portion 41B present a flat top surface as a whole at the top of the isolation structure 2 facing away from the substrate 1, the conductive layer 5 remains continuous at this top surface, reducing the risk of local virtual connection or short circuit of the conductive layer 5 at this top surface, thereby enabling the resistance of the conductive layer 5 to be maintained at a relatively low state, thereby reducing the internal resistance of the display panel 100 of the embodiment of the present application and improving the display effect.

[0052] Further, see Figure 1 and Figure 2 The first sub-portion 41A and / or the second sub-portion 41B completely covers the isolation structure 2, so that the side of the isolation structure 2 facing away from the substrate 1 is covered by the first encapsulation layer 4. At this time, the first sub-portion 41A or the second sub-portion 41B can present a flat top surface on the side of the isolation structure 2 facing away from the substrate 1.

[0053] Further, see Figure 1 and Figure 2 A first electrode 311 is provided on the side of the first light-emitting unit 31A facing away from the substrate 1, the first packaging part 41 is located on the side of the first electrode 311 facing away from the substrate 1, and a connecting hole 411 is provided on at least one first packaging part 41, the connecting hole 411 is located in the isolation opening 21, and the first electrode 311 and the conductive layer 5 are connected through the connecting hole 411.

[0054] The first electrode 311 serves as the cathode of the first light-emitting unit 31A and is electrically connected to the conductive layer 5 via the via 411. The first packaging portion 41 simultaneously packages the first electrode 311 and the first light-emitting unit 31A at the first opening 21A. In this case, the conductive layer 5 can function as an auxiliary cathode for the first light-emitting unit 31A. The via 411 passes through the first packaging portion 41 and is located within the isolation opening 21, facilitating electrical connection between the first electrode 311 and the conductive layer 5. It should be understood that the location of the via 411 should not obstruct the light emission of the light-emitting unit 31.

[0055] Furthermore, the material of the isolation structure 2 includes a conductive material, the first electrode 311 is electrically connected to the isolation structure 2 , and the isolation structure 2 can assist in conducting the cathode signal.

[0056] Figure 3 FIG. 2 is another structural schematic diagram of a display panel according to an embodiment of the present application. Figure 4 for Figure 3 , a cross-sectional view of the display panel of an embodiment of the present application at section BB. Figure 5 for Figure 3 , another cross-sectional view of the display panel of an embodiment of the present application at section BB.

[0057] Further, see Figures 3 to 5 The display panel 100 also includes a pixel definition layer 6, which includes a pixel defining portion 61 and a plurality of pixel openings 62 surrounded by the pixel defining portion 61. The pixel opening 62 is connected to the isolation opening 21, and the light-emitting unit 31 is arranged in the pixel opening 62; along the thickness direction of the display panel 100, the orthographic projection of the connecting hole 411 overlaps with the orthographic projection of the pixel defining portion 61.

[0058] The pixel defining portion 61 of the pixel definition layer 6 encloses a plurality of pixel openings 62, which correspond to the isolation openings 21. The isolation openings 21 can be larger than the pixel openings 62. In this case, along the thickness direction of the display panel 100, the orthographic projection of the pixel openings 62 lies within the orthographic projection of the isolation openings 21. Furthermore, along the thickness direction of the display panel 100, the orthographic projection of the communication hole 411 overlaps with the orthographic projection of the pixel defining portion 61. In other words, the communication hole 411 is located within the region corresponding to the pixel defining portion 61. Therefore, the communication hole 411 does not block the pixel openings 62, and thus does not block the light emission of the light-emitting unit 31.

[0059] In the display panel 100 of the embodiment of the present application, the composition and preparation of the isolation structure 2 are described in Patents CN118251982A, Patent 202410864269.8, and Patent

[0060] PCT / CN2024 / 098407, Patent PCT / CN2024 / 102783, Patent

[0061] PCT / CN2024 / 098217, Patent PCT / CN2024 / 099419, Patent

[0062] The present invention is further described in PCT / CN2024 / 099072, patent CN117979755A, patent CN117998900A, patent CN117062489A, patent CN117580403A, patent CN116583155A, patent CN116669477A, ​​patent CN117396039A, patent CN116669480A, patent CN116600606A, and patent CN117500332A, the contents of which are incorporated herein by reference for reference.

[0063] Further, see Figures 3 to 5 The isolation structure 2 is arranged on the side of the pixel defining portion 61 away from the substrate 1 , and along the thickness direction of the display panel 100 , the orthographic projection of the communication hole 411 is spaced apart from the orthographic projection of the isolation structure 2 .

[0064] During the fabrication of the display panel 100 according to the embodiment of the present application, the pixel defining portion 61 can be fabricated first, and then the isolation structure 2 can be fabricated on the side of the pixel defining portion 61 facing away from the substrate 1, such that the isolation structure 2 is disposed on the side of the pixel defining portion 61 facing away from the substrate 1. Considering that the material of the isolation structure 2 includes a conductive material, while the material of the pixel defining portion 61 is an insulating material, the orthographic projection of the communication hole 411 is spaced apart from the orthographic projection of the isolation structure 2 along the thickness direction of the display panel 100. This can reduce the impact of the isolation structure 2 on the communication hole 411, thereby reducing crosstalk with the conductive layer 5.

[0065] Further, see Figures 3 to 5 Along the thickness direction of the display panel 100 , the orthographic projection of the conductive layer 5 overlaps with the orthographic projection of the pixel defining portion 61 , that is, the conductive layer 5 will be arranged in the area corresponding to the pixel defining portion 61 to reduce the obstruction of the light-emitting unit 31 in the pixel opening 62 .

[0066] Further, see Figures 3 to 5 Along the thickness direction of the display panel 100 , the orthographic projections of the conductive layer 5 are all mesh-shaped, and the conductive layer 5 encloses a plurality of grid openings 51 . The orthographic projections of the pixel openings 62 are located within the orthographic projections of the grid openings 51 .

[0067] Considering that the pixel defining portion 61 encloses a plurality of pixel openings 62, the orthographic projections of the pixel defining portion 61 along the thickness direction of the display panel 100 are all in a mesh shape. Similarly, the orthographic projections of the conductive layer 5 along the thickness direction of the display panel 100 are all in a mesh shape, enclosing a plurality of mesh openings 51. Furthermore, the orthographic projections of the pixel openings 62 are located within the orthographic projections of the mesh openings 51, and the pixel openings 62 are smaller than the mesh openings 51, thereby reducing obstruction of the pixel openings 62 by the conductive layer 5.

[0068] Further, see Figures 3 to 5 The isolation structure 2 is located on the side of the pixel defining portion 61 facing away from the substrate 1, or a clearance opening is opened on the pixel defining portion 61, and the isolation structure 2 is located in the clearance opening.

[0069] The pixel-defining portion 61 may extend between two adjacent pixel openings 62, in which case the isolation structure 2 is disposed on the side of the pixel-defining portion 61 facing away from the substrate 1. In this case, the pixel-defining portion 61 and the isolation structure 2 are located on different layers. Alternatively, the pixel-defining portion 61 may extend between two adjacent pixel openings 62, with a clearance opening disposed in the pixel-defining portion 61. The isolation structure 2 is disposed in the clearance opening and protrudes from the side of the pixel-defining portion 61 facing away from the substrate 1. In this case, the pixel-defining portion 61 and a portion of the isolation structure 2 are disposed on the same layer.

[0070] Regardless of the method used between the pixel defining portion 61 and the isolation structure 2 , the isolation opening 21 is larger than the pixel opening 62 .

[0071] Figure 6 FIG. 2 is another structural schematic diagram of a display panel according to an embodiment of the present application. Figure 7 for Figure 6 , a cross-sectional view of the display panel of an embodiment of the present application at the CC section.

[0072] Further, see Figure 6 and Figure 7 Along the thickness direction of the display panel 100, the orthographic projection of the connecting hole 411 of the first sub-portion 41A is located between the orthographic projection of the first opening 21A and the orthographic projection of the second opening 21B, and the orthographic projection of the connecting hole 411 of the second sub-portion 41B is located on the side of the orthographic projection of the second opening 21B away from the orthographic projection of the first opening 21A.

[0073] The connecting hole 411 of the first sub-section 41A is located on one side of the first opening 21A, and the connecting hole 411 of the second sub-section 41B is located on the same side of the second opening 21B. Therefore, the conductive layer 5 located between the first opening 21A and the second opening 21B is electrically connected to the first light-emitting power source only through the connecting hole 411 of the first sub-section 41A, which is beneficial to reducing the space between the first opening 21A and the second opening 21B and increasing the aperture ratio.

[0074] Figure 8 FIG. 2 is another structural schematic diagram of a display panel according to an embodiment of the present application. Figure 9 for Figure 8 , a cross-sectional view of the display panel of an embodiment of the present application at the DD section.

[0075] Further, see Figure 8 and Figure 9 The isolation structure 2 includes a first surface 22, which is located on the side of the isolation structure 2 facing away from the substrate 1; along the thickness direction of the display panel 100, a first gap S1 is provided between the first sub-portion 41A and the second sub-portion 41B, and a second gap S2 is provided between the first surface 22 and the second sub-portion 41B; the first gap S1 is connected to the second gap S2.

[0076] The end surface of the isolation structure 2 facing away from the substrate 1 corresponds to the first surface 22. During the fabrication of the second light-emitting unit 31B, material between the second sub-section 41B and the first surface 22 is removed, resulting in a second gap S2 between the first surface 22 and the second sub-section 41B. Similarly, during the fabrication of the first light-emitting unit 31A, material between the second sub-section 41B and the first sub-section 41A is removed, resulting in a second gap S2 between the first sub-section 41A and the second sub-section 41B, while also connecting the first gap S1 and the second gap S2.

[0077] Further, see Figure 8 and Figure 9 , along the direction from the first opening 21A to the second opening 21B, the end of the first slit S1 near the first opening 21A is connected to the end of the second slit S2 near the first opening 21A. After the second light-emitting unit 31B is manufactured, along the direction from the first opening 21A to the second opening 21B, the end of the second slit S2 near the first opening 21A is in an open state. After the first light-emitting unit 31A is manufactured, along the direction from the first opening 21A to the second opening 21B, the end of the first slit S1 near the first opening 21A is connected to the end of the second slit S2 near the first opening 21A, and the end of the first slit S1 near the second opening 21B is in an open state.

[0078] Figure 10 for Figure 8 , another cross-sectional view of the display panel of an embodiment of the present application at the DD section.

[0079] Further, see Figure 10 The isolation structure 2 includes a first sublayer 23 and a second sublayer 24 stacked in a direction away from the substrate 1 . Along the thickness direction of the display panel 100 , the orthographic projection of the first sublayer 23 is within the orthographic projection of the second sublayer 24 .

[0080] The isolation structure 2 adopts a multi-layer structure, including a stacked first sublayer 23 and a second sublayer 24. Along the thickness direction of the display panel 100, the orthographic projection of the first sublayer 23 is located within the orthographic projection of the second sublayer 24, so that the cross-section of the isolation structure 2 is T-shaped. When the first light-emitting unit 31A is manufactured, the material corresponding to the first light-emitting unit 31A can be isolated, and when the second light-emitting unit 31B is manufactured, the material corresponding to the second light-emitting unit 31B can be isolated.

[0081] Figure 11 for Figure 8 , another cross-sectional view of the display panel of an embodiment of the present application at the DD section.

[0082] Further, see Figure 11 The display panel 100 of the embodiment of the present application further includes a third sublayer 25 , which is located on the side of the first sublayer 23 facing the substrate 1 . Along the thickness direction of the display panel 100 , the orthographic projection of the first sublayer 23 is located within the orthographic projection of the third sublayer 25 .

[0083] The isolation structure 2 adopts a three-layer structure, with the third sublayer 25, the first sublayer 23 and the third sublayer 25 stacked in sequence. Along the thickness direction of the display panel 100, the orthographic projection of the first sublayer 23 is located within the orthographic projection of the third sublayer 25, so that the cross-section of the isolation structure 2 is I-shaped.

[0084] Figure 12 A schematic structural diagram of a display device according to an embodiment of the present application.

[0085] See also Figure 12 The present invention also provides a display device 200, comprising the display panel 100 of the aforementioned embodiment of the present invention. The display device 200 provided in the embodiment of the present invention can be any product or component with a display function, such as a mobile phone, tablet computer, television, monitor, laptop computer, digital photo frame, or navigator.

[0086] In summary, the embodiments of the present application provide a display panel and a display device. The display panel includes a substrate, an isolation structure, a light-emitting layer, a first encapsulation layer, and a conductive layer. The isolation structure encloses a plurality of isolation openings, and the isolation openings include adjacent first and second openings; the light-emitting layer includes a plurality of light-emitting units, and the light-emitting units include a first light-emitting unit located at the first opening and a second light-emitting unit located at the second opening; the first encapsulation layer includes a first encapsulation portion for encapsulating each light-emitting unit, the first sub-portion of the first encapsulation portion encapsulates the first light-emitting unit, and the second sub-portion encapsulates the second light-emitting unit; on the side of the isolation structure facing away from the substrate, part of the first sub-portion is located on the side of the part of the second sub-portion facing away from the substrate, so that at the isolation structure, the side of the part of the first sub-portion facing away from the second sub-portion presents a nearly flat top surface, so that the conductive layer can be continuously arranged on the side of the first sub-portion facing away from the substrate, thereby reducing the risk of local virtual connection or short circuit, thereby reducing the internal resistance of the display panel and improving the display effect of the display panel.

[0087] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present application, and such modifications or substitutions should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A display panel, characterized in that: include: substrate; An isolation structure, disposed on the substrate and enclosing a plurality of isolation openings; a light-emitting layer, comprising a light-emitting unit located in the isolation opening; A first encapsulation layer, comprising a first encapsulation portion for encapsulating each of the light-emitting units; A conductive layer, located on a side of the first packaging layer facing away from the substrate; Among them, the multiple isolation openings include adjacent first openings and second openings, the multiple light-emitting units include a first light-emitting unit located at the first opening and a second light-emitting unit located at the second opening, the first encapsulation portion includes a first sub-portion for encapsulating the first light-emitting unit and a second sub-portion for encapsulating the second light-emitting unit, on the side of the isolation structure away from the substrate, part of the first sub-portion is located on the side of part of the second sub-portion away from the substrate, and the conductive layer is located on the side of the first sub-portion away from the substrate.

2. The display panel according to claim 1, characterized in that: The first sub-portion and / or the second sub-portion completely covers the isolation structure.

3. The display panel according to claim 1, characterized in that: A first electrode is disposed on a side of the first light-emitting unit away from the substrate, the first packaging portion is located on a side of the first electrode away from the substrate, and a connecting hole is disposed on at least one of the first packaging portions, the connecting hole is located in the isolation opening, and the first electrode and the conductive layer are connected through the connecting hole via; Preferably, the material of the isolation structure includes a conductive material, and the first electrode and the isolation structure are electrically connected.

4. The display panel according to claim 3, characterized in that: The display panel further includes a pixel definition layer, the pixel definition layer includes a pixel definition portion and a plurality of pixel openings surrounded by the pixel definition portion, the pixel openings are connected to the isolation openings, and the light emitting units are arranged at the pixel openings; Along the thickness direction of the display panel, the orthographic projection of the communication hole overlaps with the orthographic projection of the pixel defining portion; Preferably, the isolation structure is arranged on a side of the pixel defining portion away from the substrate, and along the thickness direction of the display panel, an orthographic projection of the connecting hole and an orthographic projection of the isolation structure are arranged at an interval.

5. The display panel according to claim 4, characterized in that: Along the thickness direction of the display panel, the orthographic projection of the conductive layer overlaps with the orthographic projection of the pixel defining portion; Preferably, along the thickness direction of the display panel, the orthographic projections of the conductive layer are all mesh-shaped, the conductive layer encloses a plurality of grid openings, and the orthographic projections of the pixel openings are located within the orthographic projections of the grid openings.

6. The display panel according to claim 4, characterized in that: The isolation structure is located on a side of the pixel defining portion away from the substrate, or a clearance opening is provided on the pixel defining portion, and the isolation structure is located in the clearance opening.

7. The display panel according to claim 3, characterized in that: Along the thickness direction of the display panel, the orthographic projection of the connecting hole of the first sub-portion is located between the orthographic projection of the first opening and the orthographic projection of the second opening, and the orthographic projection of the connecting hole of the second sub-portion is located on the side of the orthographic projection of the second opening away from the orthographic projection of the first opening.

8. The display panel according to claim 1, characterized in that: The isolation structure comprises a first surface, the first surface is located on a side of the isolation structure away from the substrate; along the thickness direction of the display panel, a first gap is provided between the first sub-portion and the second sub-portion, and a second gap is provided between the first surface and the second sub-portion; the first gap is connected to the second gap; Preferably, along the direction from the first opening to the second opening, an end of the first slit close to the first opening is communicated with an end of the second slit close to the first opening.

9. The display panel according to claim 1, characterized in that: The isolation structure comprises a first sublayer and a second sublayer stacked in a direction away from the substrate, and along the thickness direction of the display panel, an orthographic projection of the first sublayer is located within an orthographic projection of the second sublayer; Preferably, a third sublayer is further included, and the third sublayer is located on a side of the first sublayer facing the substrate, and along the thickness direction of the display panel, the orthographic projection of the first sublayer is located within the orthographic projection of the third sublayer.

10. A display device, characterized in that: A display panel comprising any one of claims 1 to 9.

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