Display panel, preparation method of display panel and electronic device

Abstract

The display panel, the preparation method of the display panel and the electronic equipment provided by the embodiments of the present application relate to the technical field of display, and the display panel comprises a substrate, an isolation structure, a plurality of light emitting units and a diffusion layer. The isolation structure encloses to form a plurality of groups of isolated openings, the plurality of groups of isolated openings comprise a first group of isolated openings, the first group of isolated openings comprise a first isolated opening and a second isolated opening, the plurality of light emitting units comprise a first light emitting unit, the first light emitting unit comprises a first light emitting sub-unit and a second light emitting sub-unit which have the same light emitting color, the diffusion layer is located at least on a side of the first light emitting sub-unit and the second light emitting sub-unit away from the substrate, the diffusion layer comprises a diffusion main body part and a plurality of diffusion particles located in the diffusion main body part, and the refractive index of the diffusion particles is different from the refractive index of the diffusion main body part. The present application can make the display difference of the first light emitting sub-unit and the second light emitting sub-unit smaller, and thus can improve the orange peel phenomenon of the display panel.

Description

Technical Field

[0001] This application relates to the field of display technology, and more specifically, to a display panel, a method for manufacturing the display panel, and an electronic device. Background Technology

[0002] Organic light-emitting diodes (OLEDs) and flat panel displays based on light-emitting diodes (LEDs) are widely used in various consumer electronics products such as mobile phones, televisions, laptops, and desktop computers due to their advantages such as high image quality, energy saving, thin body, and wide application range, becoming the mainstream display panel. In the traditional display panel manufacturing process, a fine metal mask (FMM) is typically used to pattern the light-emitting pixels. FMM technology is mature and has extensive mass production experience. However, FMM technology also has problems such as limited precision, high development costs, and long development cycles. Fine metal mask-less technology eliminates the limitations of traditional OLED processes on display size, resolution, and other screen performance characteristics, offering advantages such as high performance, full-size display, and agile delivery. Patents CN118251982A, CN115666161A, CN116648095A, CN117062489A, CN118678742A, CN118785761A, CN115224220A, CN118678729A, CN118660529A, and CN118660589A describe relevant content regarding the technology of eliminating fine metal masks, and are provided for reference.

[0003] However, there are still some problems with the display panel that need to be addressed. Summary of the Invention

[0004] To overcome the technical problems mentioned in the background, this application provides a display panel, which includes:

[0005] substrate;

[0006] An isolation structure is located on one side of the substrate. The isolation structure encloses and forms multiple sets of isolation openings, including a first set of isolation openings, which includes a first isolation opening and a second isolation opening.

[0007] Multiple light-emitting units, the multiple light-emitting units including a first light-emitting unit, the first light-emitting unit including a first light-emitting sub-unit and a second light-emitting sub-unit with the same light-emitting color, at least a portion of the first light-emitting sub-unit being located within the first isolation opening, and at least a portion of the second light-emitting sub-unit being located within the second isolation opening;

[0008] A diffusion layer is located at least on the side of the first light-emitting subunit and the second light-emitting subunit away from the substrate. The diffusion layer includes a diffusion body and a plurality of diffusion particles located within the diffusion body. The refractive index of the diffusion particles is different from that of the diffusion body.

[0009] In some possible implementations, the refractive index of the diffusing particles is less than the refractive index of the diffusing body portion;

[0010] Preferably, the refractive index of the diffused particles is greater than or equal to 1.46 and less than or equal to 1.49;

[0011] Preferably, the refractive index of the diffusion body is greater than or equal to 1.52 and less than or equal to 1.55;

[0012] Preferably, the material of the diffusion body includes resin;

[0013] Preferably, the material of the diffused particles includes acrylic;

[0014] Preferably, the diffusion layer is located on the side of the plurality of light-emitting units away from the substrate.

[0015] In some possible implementations, the plurality of diffusing particles are randomly distributed within the diffusion body.

[0016] Preferably, the orthographic projection of some of the plurality of diffuse particles on the substrate is located within the orthographic projection of the light-emitting unit on the substrate;

[0017] Preferably, the orthographic projection of some of the plurality of diffuse particles onto the substrate lies within the orthographic projection of the isolation structure onto the substrate.

[0018] In some possible implementations, the shape of the diffused particles includes spherical;

[0019] Preferably, at least some of the diffused particles have different diameters;

[0020] Preferably, the diameters of adjacent diffusing particles are different;

[0021] Preferably, the diameter of the diffused particles is greater than or equal to 0.5 μm and less than or equal to 6 μm.

[0022] In some possible implementations, the display panel further includes a plurality of encapsulation units located on the side of the corresponding light-emitting unit away from the substrate, a portion of the encapsulation unit extending from the side of the isolation structure toward the isolation opening to the side of the isolation structure away from the substrate, and the diffusion layer located on the side of the encapsulation unit away from the substrate.

[0023] Preferably, the display panel further includes a second encapsulation layer located on the side of the encapsulation unit away from the substrate and a third encapsulation layer located on the side of the second encapsulation layer away from the substrate.

[0024] In some possible implementations, the second encapsulation layer is the diffusion layer;

[0025] Preferably, along the thickness direction of the substrate, the thickness of the diffusion layer is greater than or equal to 11 μm and less than or equal to 17 μm;

[0026] Preferably, the diameter of the diffused particles is greater than or equal to 2 μm and less than or equal to 6 μm.

[0027] In some possible implementations, the diffusion layer is located between the second encapsulation layer and the third encapsulation layer;

[0028] Preferably, along the thickness direction of the substrate, the thickness of the diffusion layer is greater than or equal to 10 μm and less than or equal to 15 μm;

[0029] Preferably, the diameter of the diffused particles is greater than or equal to 2.5 μm and less than or equal to 5 μm.

[0030] In some possible implementations, the display panel further includes a touch layer located on the side of the third encapsulation layer away from the substrate, and the diffusion layer located between the touch layer and the third encapsulation layer;

[0031] Preferably, along the thickness direction of the substrate, the thickness of the diffusion layer is greater than or equal to 10 μm and less than or equal to 15 μm;

[0032] Preferably, the diameter of the diffused particles is greater than or equal to 2.5 μm and less than or equal to 5 μm.

[0033] In some possible implementations, the display panel further includes:

[0034] The touch layer is located on the side of the third encapsulation layer away from the substrate;

[0035] The first organic adhesive layer is located on the side of the touch layer away from the substrate;

[0036] Wherein, the first organic adhesive layer is the diffusion layer;

[0037] Preferably, along the thickness direction of the substrate, the thickness of the diffusion layer is greater than or equal to 2.2 μm and less than or equal to 2.5 μm;

[0038] Preferably, the diameter of the diffused particles is greater than or equal to 0.5 μm and less than or equal to 0.8 μm;

[0039] Preferably, the display panel further includes a second organic adhesive layer located on the side of the diffusion layer away from the substrate.

[0040] In some possible implementations, the display panel further includes:

[0041] The touch layer is located on the side of the third encapsulation layer away from the substrate;

[0042] The first organic adhesive layer is located on the side of the touch layer away from the substrate;

[0043] The diffusion layer is located on the side of the first organic adhesive layer away from the substrate;

[0044] Preferably, along the thickness direction of the substrate, the thickness of the diffusion layer is greater than or equal to 10 μm and less than or equal to 15 μm;

[0045] Preferably, the diameter of the diffused particles is greater than or equal to 2.5 μm and less than or equal to 5 μm.

[0046] In some possible implementations, the packaging unit includes a first packaging subunit and a second packaging subunit, wherein the first packaging subunit is located on the side of the first light-emitting subunit away from the substrate, and the second packaging subunit is located on the side of the second light-emitting subunit away from the substrate. The first packaging subunit and the second packaging subunit are connected to each other, or the first packaging subunit and the second packaging subunit are spaced apart on the side of the isolation structure away from the substrate.

[0047] Preferably, there is a gap between the packaging unit located on the side of the isolation structure away from the substrate and the side of the isolation structure away from the substrate;

[0048] Preferably, the multiple encapsulation units corresponding to the multiple light-emitting units are arranged at intervals;

[0049] Preferably, the materials of both the packaging unit and the third packaging layer include inorganic materials;

[0050] Preferably, the material of the second encapsulation layer includes an organic material.

[0051] In some possible implementations, the first light-emitting subunit includes a first sub-electrode, a first light-emitting functional part, and a second sub-electrode stacked sequentially in a direction away from the substrate, and the second light-emitting subunit includes a third sub-electrode, a second light-emitting functional part, and a fourth sub-electrode stacked sequentially in a direction away from the substrate, wherein the first sub-electrode and the third sub-electrode are connected to each other; or, the first sub-electrode and the third sub-electrode are spaced apart.

[0052] Preferably, the plurality of isolation openings further includes a second group of isolation openings adjacent to the first group of isolation openings, wherein the distance between the first group of isolation openings and the second group of isolation openings is greater than the distance between the first isolation opening and the second isolation opening;

[0053] Preferably, along the thickness direction of the substrate, the overlap height between the second sub-electrode and the corresponding isolation structure is different from the overlap height between the fourth sub-electrode and the corresponding isolation structure;

[0054] Preferably, along the thickness direction of the substrate, the overlap area between the second sub-electrode and the corresponding isolation structure is different from the overlap area between the fourth sub-electrode and the corresponding isolation structure.

[0055] In some possible implementations, the isolation structure includes a first isolation portion and a second isolation portion stacked sequentially along a direction away from the substrate, wherein the orthographic projection of the side of the first isolation portion away from the substrate on the substrate is located within the orthographic projection of the second isolation portion on the substrate;

[0056] Preferably, the light-emitting unit includes a first electrode, a light-emitting functional part, and a second electrode sequentially stacked along a direction away from the substrate, the isolation structure includes a conductive material, and the second electrode is electrically connected to the first isolation part;

[0057] Preferably, the isolation structure further includes a third isolation portion located on the side of the first isolation portion facing the substrate, and the second electrode is electrically connected to the third isolation portion;

[0058] Preferably, the material of the third isolation part includes molybdenum or titanium; and / or, the material of the first isolation part includes aluminum, silver or copper; and / or, the material of the second isolation part includes titanium or molybdenum.

[0059] In some possible implementations, this application also provides a method for manufacturing a display panel, the method comprising:

[0060] Provide substrate;

[0061] An isolation structure is formed on one side of the substrate, and the isolation structure encloses a plurality of isolation openings, the plurality of isolation openings including a first group of isolation openings, the first group of isolation openings including a first isolation opening and a second isolation opening;

[0062] At least a portion of a light-emitting unit is formed within the isolation opening. The number of light-emitting units is multiple. The multiple light-emitting units include a first light-emitting unit. The first light-emitting unit includes a first light-emitting sub-unit and a second light-emitting sub-unit with the same light-emitting color. At least a portion of the first light-emitting sub-unit is located within the first isolation opening, and at least a portion of the second light-emitting sub-unit is located within the second isolation opening.

[0063] A diffusion layer is formed at least on the side of the first light-emitting subunit and the second light-emitting subunit away from the substrate. The diffusion layer includes a diffusion body portion and a plurality of diffusion particles located within the diffusion body portion. The refractive index of the diffusion particles is different from that of the diffusion body portion.

[0064] In some possible implementations, this application also provides an electronic device, which includes the display panel described in this application, or a display panel prepared by the method for preparing the display panel described in this application.

[0065] Compared with the prior art, this application has the following beneficial effects:

[0066] This application provides a display panel, a method for manufacturing the display panel, and an electronic device. By providing a diffusion particle and a diffusion body with different refractive indices arranged in the same layer on the side of the light-emitting unit away from the substrate, the display difference between the first light-emitting sub-unit and the second light-emitting sub-unit can be reduced, thereby improving the orange peel texture of the display panel and ultimately enhancing the display effect of the display panel. Attached Figure Description

[0067] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0068] Figure 1 A top view of the display panel provided in an embodiment of this application;

[0069] Figure 2 Provided for the embodiments of this application Figure 1 One of the schematic cross-sectional views at point AA in the middle;

[0070] Figure 3 Provided for the embodiments of this application Figure 1 One of the cross-sectional schematic diagrams at point BB in the middle;

[0071] Figure 4 Provided for the embodiments of this application Figure 1 Schematic diagram of the cross section at point AA (part 2);

[0072] Figure 5 Provided for the embodiments of this application Figure 1 Schematic diagram of the cross section at point BB (part 2);

[0073] Figure 6 Provided for the embodiments of this application Figure 1 Schematic diagram of the cross section at point BB (part 3);

[0074] Figure 7 Provided for the embodiments of this application Figure 1 Fourth cross-sectional view at point BB;

[0075] Figure 8 Provided for the embodiments of this application Figure 1 Fifth cross-sectional view at point BB;

[0076] Figure 9 Provided for the embodiments of this application Figure 1 Sixth cross-sectional view at point BB;

[0077] Figure 10a Provided for the embodiments of this application Figure 1 Schematic diagram of the cross section at point BB (part 7);

[0078] Figure 10b Provided for the embodiments of this application Figure 1 Schematic diagram of the cross section at point BB (part 8);

[0079] Figure 11 Provided for the embodiments of this application Figure 1 Schematic diagram of the cross section at point BB (part 9);

[0080] Figure 12 Provided for the embodiments of this application Figure 1 Schematic diagram of the cross section at point BB (part 10);

[0081] Figure 13 Provided for the embodiments of this application Figure 1 Schematic diagram of the cross section at point BB (part 11);

[0082] Figure 14 A schematic flowchart illustrating a method for manufacturing a display panel according to an embodiment of this application;

[0083] Figure 15This is a schematic cross-section showing an isolation structure formed on one side of a substrate, as provided in an embodiment of this application.

[0084] Figure 16 This is a cross-sectional view of a light-emitting unit and an encapsulation unit formed within an isolation opening, as provided in an embodiment of this application.

[0085] Reference numerals: 1. Substrate; 101. Substrate; 102. Pixel circuit; 2. Pixel defining layer; 21. Pixel opening; 211. First pixel sub-opening; 212. Second pixel sub-opening; 3. Isolation structure; 31. First isolation portion; 32. Second isolation portion; 33. Third isolation portion; 4. First electrode; 41. First sub-electrode; 42. Third sub-electrode; 5. Light-emitting functional portion; 51. First light-emitting functional sub-part; 52. Second light-emitting functional sub-part; 6. Second electrode; 61. Second Sub-electrode; 62, fourth sub-electrode; 7, light-emitting unit; 71, first light-emitting sub-unit; 72, second light-emitting sub-unit; 8, isolation opening; 81, first isolation opening; 82, second isolation opening; 9, diffusion layer; 91, diffusion body; 92, diffusion particles; 10, encapsulation unit; 101, first encapsulation sub-unit; 102, second encapsulation sub-unit; 11, second encapsulation layer; 12, third encapsulation layer; 13, touch layer; 14, first organic adhesive layer; 15, second organic adhesive layer. Detailed Implementation

[0086] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0087] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0088] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0089] In the description of this application, it should be noted that the terms "center," "upper," "lower," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In addition, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0090] It should be noted that, where there is no conflict, different features in the embodiments of this application can be combined with each other.

[0091] Increasing the density of light-emitting units (i.e., pixel density) in a display panel is a crucial way to improve display quality. However, current display panels manufactured using Fine Metal Mask (FMM) technology are limited by technological constraints that prevent further increases in light-emitting unit density. Through long-term research, the inventors discovered that, to address the technical challenge of limiting light-emitting unit density, an isolation structure can be incorporated into some display panels. During the full-layer deposition of the light-emitting layer and the second electrode, the light-emitting layer and the second electrode can be disconnected at the isolation structure. By employing multiple deposition and etching processes (i.e., light-emitting unit patterning), light-emitting units of different colors can be formed within different isolation openings.

[0092] The display panel in the related technology includes a substrate, an isolation structure located on one side of the substrate, and light-emitting units located within an isolation opening formed by the isolation structure. The light-emitting units include multiple light-emitting units with different emitting colors. At least some of the light-emitting units are prone to dark spots. In order to reduce the dark spots generated by the light-emitting units, the same light-emitting unit is usually divided into at least two light-emitting sub-units. However, there are differences in the overlap between the cathodes of the two light-emitting sub-units divided from the same light-emitting unit and the isolation structure, which causes a display difference between the two sub-light-emitting sub-units, resulting in an orange peel texture phenomenon in the display panel, which ultimately affects the display effect of the display panel.

[0093] To address the aforementioned technical problems, the inventors have innovatively designed the following technical solutions, which will be described in detail below with reference to the accompanying drawings. It should be noted that the deficiencies in the existing solutions are the result of the inventors' practical experience and careful research. Therefore, the discovery process of the aforementioned technical problems and the solutions proposed in this embodiment below are contributions made by the inventors to this application during the invention process, and should not be construed as technical content known to those skilled in the art.

[0094] Please see Figures 1-3 This embodiment provides a display panel, which includes a substrate 1, an isolation structure 3, multiple light-emitting units 7 and a diffusion layer 9.

[0095] The substrate 1 may include a substrate and a plurality of driving units located on one side of the substrate, each driving unit may include one or more semiconductor switching devices. The semiconductor switching devices may be formed by the interaction of multiple film layers in the substrate 1; for example, the semiconductor switching devices may be thin-film transistors formed by the interaction of multiple film layers.

[0096] The isolation structure 3 is located on one side of the substrate 1. The isolation structure 3 encloses and forms multiple sets of isolation openings 8. The multiple sets of isolation openings 8 include a first set of isolation openings, which includes a first isolation opening 81 and a second isolation opening 82.

[0097] The plurality of light-emitting units 7 include a first light-emitting unit, the first light-emitting unit including a first light-emitting sub-unit 71 and a second light-emitting sub-unit 72 with the same light-emitting color, at least a portion of the first light-emitting sub-unit 71 is located within a first isolation opening 81, and at least a portion of the second light-emitting sub-unit 72 is located within a second isolation opening 82.

[0098] The diffusion layer 9 is located at least on the side of the first light-emitting sub-unit 71 and the second light-emitting sub-unit 72 away from the substrate 1. The diffusion layer 9 includes a diffusion body portion 91 and a plurality of diffusion particles 92 located within the diffusion body portion 91. The refractive index of the diffusion particles 92 is different from the refractive index of the diffusion body portion 91.

[0099] The diffuser particles 92 are embedded in the diffuser body 91, and there is no gap between the diffuser particles 92 and the diffuser body 91. The light-emitting unit 7 may include a first light-emitting unit, a second light-emitting unit, and a third light-emitting unit with different light-emitting colors. For example, the light-emitting color of the first light-emitting unit may be blue, the light-emitting color of the second light-emitting unit may be green, and the light-emitting color of the third light-emitting unit may be red. The first light-emitting unit, the second light-emitting unit, and the third light-emitting unit can all be divided into a first light-emitting subunit 71 and a second light-emitting subunit 72 in this embodiment.

[0100] Figure 3The dashed arrows in the diagram represent the light paths of the first light-emitting subunit 71 and the second light-emitting subunit 72. Since the refractive index of the diffuser particle 92 is different from that of the diffuser body 91, when the light emitted by the first light-emitting subunit 71 and the second light-emitting subunit 72 enters the diffuser particle 92 from the diffuser body 91, the light emitted by the first light-emitting subunit 71 and the second light-emitting subunit 72 will undergo refraction, reflection, and scattering. In this way, the light emitted by the first light-emitting subunit 71 and the second light-emitting subunit 72 continuously passes through the two media with different refractive indices, the diffuser particle 92 and the diffuser body 91, which can have a diffusion effect on the light emitted by the first light-emitting subunit 71 and the second light-emitting subunit 72, and can atomize the light source of the first light-emitting subunit 71 and the second light-emitting subunit 72. This can reduce the display difference between the first light-emitting subunit 71 and the second light-emitting subunit 72, thereby improving the orange peel texture of the display panel and ultimately improving the display effect of the display panel.

[0101] Based on the above design, this embodiment provides a diffusion particle 92 and a diffusion body 91 with different refractive indices on the side of the light-emitting unit 7 away from the substrate 1. This can reduce the display difference between the first light-emitting sub-unit 71 and the second light-emitting sub-unit 72, thereby improving the orange peel texture of the display panel and ultimately enhancing the display effect of the display panel.

[0102] In some possible implementations, please refer again. Figures 1-3 The light-emitting unit 7 includes a first electrode 4, a light-emitting functional part 5, and a second electrode 6, which are sequentially stacked along a direction away from the substrate 1.

[0103] The display panel also includes a pixel defining layer 2 located between the first electrode 4 and the isolation structure 3. The pixel defining layer 2 includes a pixel opening 21 that exposes a portion of the first electrode 4. The pixel opening 21 is connected to the isolation opening 8. The orthographic projection of the pixel opening 21 on the substrate 1 is located within the orthographic projection of the isolation opening 8 on the substrate 1.

[0104] Optionally, the pixel opening 21 includes a first pixel sub-opening 211 and a second pixel sub-opening 212. The first pixel sub-opening 211 is connected to the first isolation opening 81, and the second pixel sub-opening 212 is connected to the second isolation opening 82. The orthographic projection of the first pixel sub-opening 211 on the substrate 1 is located within the orthographic projection of the first isolation opening 81 on the substrate 1, and the orthographic projection of the second pixel sub-opening 212 on the substrate 1 is located within the orthographic projection of the second isolation opening 82 on the substrate 1.

[0105] The isolation structure 3 allows the display panel to form film layers of different colors of light-emitting units 7 in different isolation openings 8 without the need for a fine mask. Specifically, when forming the light-emitting material layer, the light-emitting material layer is separated by the isolation structure 3 to form multiple spaced light-emitting functional parts 5. When forming the second electrode material layer, the second electrode material layer is separated by the isolation structure 3 to form multiple spaced second electrodes 6. The isolation structure 3 includes a conductive material, and the second electrodes 6 are electrically connected to the isolation structure 3. One first electrode 4, one light-emitting functional part 5, and one second electrode 6 form one light-emitting unit 7. The first electrode 4 can be an anode, and the second electrode 6 can be a cathode.

[0106] In this way, different light-emitting units 7 can be made independent of each other, thereby reducing crosstalk between adjacent light-emitting units 7 and improving the display effect of the display panel. At the same time, due to the presence of the isolation structure 3, the light-emitting material layer and the second electrode material layer in each color light-emitting unit 7 of the display panel can be prepared as a whole before patterning, thereby eliminating the need for a fine mask and saving the manufacturing cost of the display panel.

[0107] Optionally, the diffusion layer 9 is located on the side of the plurality of light-emitting units 7 away from the substrate 1. In this way, the diffusion layer 9 can scatter the light emitted by the plurality of light-emitting units 7, thereby reducing the display differences among the plurality of light-emitting units 7 and further improving the orange peel texture of the display panel.

[0108] In some possible implementations, the refractive index of the diffusing particles 92 is less than the refractive index of the diffusing body 91.

[0109] Optionally, the refractive index of the diffuser 92 is greater than or equal to 1.46 and less than or equal to 1.49. For example, the refractive index of the diffuser 92 can be 1.46, 1.47, 1.48 or 1.49, etc.

[0110] Optionally, the refractive index of the diffuser body 91 is greater than or equal to 1.52 and less than or equal to 1.55. For example, the refractive index of the diffuser body 91 can be 1.52, 1.53, 1.54 or 1.55, etc.

[0111] Optionally, the material of the diffusion body 91 includes resin, and the material of the diffusion particles 92 includes acrylic.

[0112] In this embodiment, setting the refractive index of the diffusion particle 92 to be less than that of the diffusion body 91, and reasonably setting the refractive index of the diffusion particle 92 and the refractive index of the diffusion body 91, can improve the diffusion effect of the light emitted by the first light-emitting sub-unit 71 and the second light-emitting sub-unit 72, thereby making it more conducive to improving the orange peel texture problem of the display panel.

[0113] In some possible implementations, multiple diffusing particles 92 are randomly distributed within the diffusion body 91.

[0114] The light emitted by the first light-emitting subunit 71 and the second light-emitting subunit 72 is better diffused after passing through the randomly distributed diffusion particles 92.

[0115] Optionally, the orthographic projection of some of the diffuse particles 92 on the substrate 1 is located within the orthographic projection of the light-emitting unit 7 on the substrate 1.

[0116] Optionally, the orthographic projection of some of the diffuse particles 92 on the substrate 1 lies within the orthographic projection of the isolation structure 3 on the substrate 1.

[0117] Diffusion particles 92 are distributed in different parts of the diffusion body 91, so that the light emitted from the first light-emitting subunit 71 and the second light-emitting subunit 72 in different directions can be diffused, thereby further improving the diffusion effect of the light emitted from the first light-emitting subunit 71 and the second light-emitting subunit 72.

[0118] In some possible implementations, the shape of the diffused particles 92 includes spherical shapes.

[0119] Optionally, at least some of the diffuse particles 92 may have different diameters.

[0120] Multiple diffusing particles 92 of different diameters have a better diffusion effect on the light emitted by the first light-emitting subunit 71 and the second light-emitting subunit 72.

[0121] Preferably, adjacent diffusing particles 92 have different diameters.

[0122] Optionally, the diameter of the diffusing particle 92 is greater than or equal to 0.5 μm and less than or equal to 6 μm. For example, the diameter of the diffusing particle 92 can be 0.5 μm, 1 μm, 2 μm, 3 μm, 4 μm, 5 μm, or 6 μm, etc.

[0123] By setting different diameters for adjacent diffuser particles 92, and by setting the diameters of diffuser particles 92 appropriately, the diffusion effect of light emitted by the first light-emitting subunit 71 and the second light-emitting subunit 72 can be further improved.

[0124] For some possible implementations, please refer to Figure 4The display panel also includes multiple encapsulation units 10, which are located on the side of the corresponding light-emitting unit 7 away from the substrate 1. A portion of the encapsulation unit 10 extends from the side of the isolation structure 3 toward the isolation opening 8 to the side of the isolation structure 3 away from the substrate 1, and the diffusion layer 9 is located on the side of the encapsulation unit 10 away from the substrate 1.

[0125] Optionally, there is a gap between the packaging unit 10 located on the side of the isolation structure 3 away from the substrate 1 and the side of the isolation structure 3 away from the substrate 1.

[0126] Optionally, the multiple light-emitting units 7 are spaced apart from each other and corresponding to the multiple encapsulation units 10.

[0127] During the patterning process of the light-emitting unit 7, the first encapsulation material layer is broken at the isolation structure 3 to form an encapsulation unit 10. The encapsulation unit 10 can completely and independently encapsulate the corresponding light-emitting unit 7, thereby improving the display characteristics of the display panel.

[0128] For some possible implementations, please refer to Figure 5 The packaging unit 10 includes a first packaging subunit 101 and a second packaging subunit 102. The first packaging subunit 101 is located on the side of the first light-emitting subunit 71 away from the substrate 1, and the second packaging subunit 102 is located on the side of the second light-emitting subunit 72 away from the substrate 1.

[0129] In some embodiments, please refer again Figure 5 The first encapsulation subunit 101 and the second encapsulation subunit 102 are spaced apart on the side of the isolation structure 3 away from the substrate 1. In this way, the first encapsulation subunit 101 and the second encapsulation subunit 102 can independently encapsulate the first light-emitting subunit 71 and the second light-emitting subunit 72, respectively.

[0130] In other embodiments, please refer to Figure 6 The first encapsulation subunit 101 and the second encapsulation subunit 102 are interconnected. This improves the stability of the first encapsulation subunit 101 and the second encapsulation subunit 102, thereby improving the encapsulation effect of the first light-emitting subunit 71 and the second light-emitting subunit 72.

[0131] Preferably, please refer to Figure 7 The display panel also includes a second encapsulation layer 11 located on the side of the encapsulation unit 10 away from the substrate 1 and a third encapsulation layer 12 located on the side of the second encapsulation layer 11 away from the substrate 1.

[0132] Optionally, the materials of the encapsulation unit 10 and the third encapsulation layer 12 both include inorganic materials, and the material of the second encapsulation layer 11 includes organic materials.

[0133] For example, the encapsulation unit 10 and the third encapsulation layer 12 can be formed by chemical vapor deposition (CVD), and the second encapsulation layer 11 can be formed by inkjet printing (IJP). The second encapsulation layer 11 and the third encapsulation layer 12 can achieve a better encapsulation effect on the light-emitting unit 7, thereby further improving the encapsulation quality of the display panel.

[0134] The following describes several specific embodiments in which the diffusion layer 9 is located in different film layers.

[0135] In the first embodiment, please refer again. Figure 7 The second encapsulation layer 11 is a diffusion layer 9.

[0136] In this embodiment, the second encapsulation layer 11 is used as the diffusion layer 9. Thus, no additional process is needed to form an independent diffusion layer 9, thereby reducing the process cost of forming the diffusion layer 9.

[0137] Optionally, along the thickness direction Z of the substrate 1, the thickness D1 of the diffusion layer 9 is greater than or equal to 11 μm and less than or equal to 17 μm. For example, the thickness D1 can be 11 μm, 12 μm, 13 μm, 14 μm, 15 μm, 16 μm or 17 μm, etc.

[0138] Optionally, the diameter φ1 of the diffused particle 92 is greater than or equal to 2 μm and less than or equal to 6 μm. For example, the diameter φ1 can be 2 μm, 3 μm, 4 μm, 5 μm, or 6 μm, etc.

[0139] In this embodiment, by reasonably setting the thickness D1 of the diffusion layer 9 and the diameter φ1 of the diffusion particles 92, the diffusion effect of the light emitted by the first light-emitting subunit 71 and the second light-emitting subunit 72 can be improved, which is more conducive to improving the orange peel texture phenomenon of the display panel.

[0140] In the second embodiment, please refer to Figure 8 The diffusion layer 9 is located between the second encapsulation layer 11 and the third encapsulation layer 12.

[0141] In this embodiment, the second encapsulation layer 11 is formed first, and then the diffusion layer 9 is formed. The leveling effect of the second encapsulation layer 11 is better, which can improve the encapsulation effect of the light-emitting unit 7 and improve the flatness of the film layer on the side of the second encapsulation layer 11 away from the substrate 1.

[0142] Optionally, along the thickness direction Z of the substrate 1, the thickness D2 of the diffusion layer 9 is greater than or equal to 10 μm and less than or equal to 15 μm. For example, the thickness D2 can be 10 μm, 11 μm, 12 μm, 13 μm, 14 μm or 15 μm, etc.

[0143] Optionally, the diameter φ2 of the diffused particle 92 is greater than or equal to 2.5 μm and less than or equal to 5 μm. For example, the diameter φ2 can be 2.5 μm, 3 μm, 4 μm, 4.5 μm or 5 μm, etc.

[0144] In this embodiment, by reasonably setting the thickness D2 of the diffusion layer 9 and the diameter φ2 of the diffusion particles 92, the diffusion effect of the light emitted by the first light-emitting subunit 71 and the second light-emitting subunit 72 can be improved, which is more conducive to improving the orange peel texture phenomenon of the display panel.

[0145] In the third embodiment, please refer to Figure 9 The display panel also includes a touch layer 13, which is located on the side of the third encapsulation layer 12 away from the substrate 1, and a diffusion layer 9 is located between the touch layer 13 and the third encapsulation layer 12.

[0146] The touch layer 13 may include a first touch electrode and a second touch electrode, one of which is a touch transmitting electrode and the other is a touch receiving electrode, so as to realize the touch function of the display panel.

[0147] In this embodiment, by providing a diffusion layer 9 between the touch layer 13 and the third encapsulation layer 12, the light emitted by the first light-emitting subunit 71 and the second light-emitting subunit 72 can be diffused.

[0148] Preferably, along the thickness direction Z of the substrate 1, the thickness D3 of the diffusion layer 9 is greater than or equal to 10 μm and less than or equal to 15 μm; for example, the thickness D3 can be 10 μm, 11 μm, 12 μm, 13 μm, 14 μm or 15 μm, etc.

[0149] Preferably, the diameter φ3 of the diffused particles 92 is greater than or equal to 2.5 μm and less than or equal to 5 μm. For example, the diameter φ3 can be 2.5 μm, 3 μm, 4 μm, 4.5 μm, or 5 μm, etc.

[0150] In this embodiment, by reasonably setting the thickness D3 of the diffusion layer 9 and the diameter φ3 of the diffusion particles 92, the diffusion effect of the light emitted by the first light-emitting subunit 71 and the second light-emitting subunit 72 can be improved, which is more conducive to improving the orange peel texture of the display panel.

[0151] In the fourth embodiment, please refer to Figure 10a The display panel also includes a first organic adhesive layer 14, which is located on the side of the touch layer 13 away from the substrate 1.

[0152] The first organic adhesive layer 14 is the diffusion layer 9.

[0153] In this embodiment, the first organic adhesive layer 14 is used as the diffusion layer 9. Thus, no additional process is needed to form an independent diffusion layer 9, thereby reducing the process cost of forming the diffusion layer 9.

[0154] Preferably, along the thickness direction Z of the substrate 1, the thickness D4 of the diffusion layer 9 is greater than or equal to 2.2 μm and less than or equal to 2.5 μm. For example, the thickness D4 can be 2.2 μm, 2.3 μm, 2.4 μm, or 2.5 μm, etc.

[0155] Preferably, the diameter φ4 of the diffused particles 92 is greater than or equal to 0.5 μm and less than or equal to 0.8 μm. For example, the diameter φ4 can be 0.5 μm, 0.6 μm, 0.7 μm or 0.8 μm, etc.

[0156] In this embodiment, by reasonably setting the thickness D4 of the diffusion layer 9 and the diameter φ4 of the diffusion particles 92, the diffusion effect of the light emitted by the first light-emitting subunit 71 and the second light-emitting subunit 72 can be improved, which is more conducive to improving the orange peel texture of the display panel.

[0157] Optionally, please see Figure 10b The display panel also includes a second organic adhesive layer 15 located on the side of the diffusion layer 9 away from the substrate 1.

[0158] The touch layer 13 includes a first touch layer and a second touch layer stacked sequentially along the direction away from the substrate 1. The first touch layer includes a first touch trace, and the second touch layer includes a second touch trace. One of the first touch trace and the second touch trace is a touch transmitting electrode, and the other is a touch receiving electrode. The first organic adhesive layer 14 is located on the side of the second touch layer away from the substrate 1. The first organic adhesive layer can fill the gaps between the second touch traces. The second organic adhesive layer 15 is adhesive and can bond the polarizer or cover plate of the display panel.

[0159] In the fifth embodiment, please refer to Figure 11 The diffusion layer 9 is located on the side of the first organic adhesive layer 14 away from the substrate 1.

[0160] In this embodiment, by providing a diffusion layer 9 on the side of the first organic adhesive layer 14 away from the substrate 1, the light emitted by the first light-emitting subunit 71 and the second light-emitting subunit 72 can be diffused.

[0161] Preferably, along the thickness direction Z of the substrate 1, the thickness D5 of the diffusion layer 9 is greater than or equal to 10 μm and less than or equal to 15 μm; for example, the thickness D5 can be 10 μm, 11 μm, 12 μm, 13 μm, 14 μm or 15 μm, etc.

[0162] Optionally, the diameter φ5 of the diffused particle 92 is greater than or equal to 2.5 μm and less than or equal to 5 μm. For example, the diameter φ5 can be 2.5 μm, 3 μm, 4 μm, 4.5 μm, or 5 μm, etc.

[0163] In this embodiment, by reasonably setting the thickness D5 of the diffusion layer 9 and the diameter φ5 of the diffusion particles 92, the diffusion effect of the light emitted by the first light-emitting subunit 71 and the second light-emitting subunit 72 can be improved, which is more conducive to improving the orange peel texture phenomenon of the display panel.

[0164] For some possible implementations, please refer to Figure 1 , Figure 3 and Figure 12 The first light-emitting sub-unit 71 includes a first sub-electrode 41, a first light-emitting functional part and a second sub-electrode 61, which are stacked sequentially in a direction away from the substrate 1. The second light-emitting sub-unit 72 includes a third sub-electrode 42, a second light-emitting functional part and a fourth sub-electrode 62, which are stacked sequentially in a direction away from the substrate 1.

[0165] When forming the light-emitting material layer, the light-emitting material layer is separated by the isolation structure 3 between the first isolation opening 81 and the second isolation opening 82 to form a first light-emitting functional sub-part 51 and a second light-emitting functional sub-part 52 spaced apart. When forming the second electrode material layer, the second electrode material layer is separated by the isolation structure 3 between the first isolation opening 81 and the second isolation opening 82 to form a second sub-electrode 61 and a fourth sub-electrode 62 spaced apart. A first sub-electrode 41, a first light-emitting functional sub-part 51 and a second sub-electrode 61 form a first light-emitting sub-unit 71, and a third sub-electrode 42, a second light-emitting functional sub-part 52 and a fourth sub-electrode 62 form a second light-emitting sub-unit 72.

[0166] Optionally, along the thickness direction Z of the substrate 1, the overlap height between the second sub-electrode 61 and the corresponding isolation structure 3 is different from the overlap height between the fourth sub-electrode 62 and the corresponding isolation structure 3.

[0167] Optionally, along the thickness direction Z of the substrate, the overlap area between the second sub-electrode 61 and the corresponding isolation structure 3 is different from the overlap area between the fourth sub-electrode 62 and the corresponding isolation structure 3.

[0168] When forming the second sub-electrode 61 and the fourth sub-electrode 62, it is inevitable that the overlap height and overlap area between the second sub-electrode 61 and the fourth sub-electrode 62 and the corresponding isolation structure 3 will be different. This will result in different overlap effects between the second sub-electrode 61 of the first light-emitting sub-unit 71 and the fourth sub-electrode 62 of the second light-emitting sub-unit 72 and the corresponding isolation structure 3, thus resulting in different brightness of the first light-emitting sub-unit 71 and the second light-emitting sub-unit 72.

[0169] In this application, a diffusion layer 9 is provided on the side of the first light-emitting sub-unit 71 and the second light-emitting sub-unit 72 away from the substrate 1, which can cause the light emitted by the first light-emitting sub-unit 71 and the second light-emitting sub-unit 72 to be scattered, thereby reducing the display difference between the first light-emitting sub-unit 71 and the second light-emitting sub-unit 72, thereby improving the orange peel texture phenomenon of the display panel, and ultimately improving the display effect of the display panel.

[0170] Optionally, please see again Figure 12 The substrate 1 includes a substrate 101 and a pixel circuit 102 located on one side of the substrate 101.

[0171] In some embodiments, please refer again Figure 1 and Figure 12 The first sub-electrode 41 and the third sub-electrode 42 are spaced apart, and the first sub-electrode 41 and the third sub-electrode 42 are respectively connected to a corresponding pixel circuit 102. In this way, the first light-emitting sub-unit 71 and the second light-emitting sub-unit 72 are driven by different pixel circuits 102. When one of the first light-emitting sub-unit 71 and the second light-emitting sub-unit 72 has a dark spot, it does not affect the normal display of the other, thereby improving the display effect of the display panel.

[0172] In some embodiments, see Figure 1 and Figure 13 The first sub-electrode 41 and the third sub-electrode 42 are interconnected. In this way, the first light-emitting sub-unit 71 and the second light-emitting sub-unit 72 are driven by the same pixel circuit 102, thereby reducing the number of pixel circuits 102 required.

[0173] Optionally, please see again Figure 1 The multiple isolation openings 8 also include a second isolation opening adjacent to the first isolation opening, and the distance W1 between the first isolation opening and the second isolation opening is greater than the distance W2 between the first isolation opening 81 and the second isolation opening 82.

[0174] Setting the distance W2 to be less than the distance W1 can improve the pixel aperture ratio of the first light-emitting sub-unit 71 and the second light-emitting sub-unit 72 after segmentation.

[0175] In some possible implementations, please refer again. Figure 12 The isolation structure 3 includes a first isolation portion 31 and a second isolation portion 32 stacked sequentially along the direction away from the substrate 1. The orthographic projection of the side of the first isolation portion 31 away from the substrate 1 on the substrate 1 is located within the orthographic projection of the second isolation portion 32 on the substrate 1.

[0176] Optionally, the isolation structure 3 includes a conductive material, and the second electrode 6 is electrically connected to the first isolation part 31; the first isolation part 31 includes a conductive material, and the second electrode 6 corresponding to the light-emitting unit 7 extends to contact the side wall of the first isolation part 31, so as to realize that the second electrode 6 corresponding to the light-emitting unit 7 is electrically connected to the first isolation part 31.

[0177] Preferably, please see again. Figure 13 The isolation structure 3 also includes a third isolation section 33 located on the side of the first isolation section 31 facing the substrate 1, and the second electrode 6 is electrically connected to the third isolation section 33.

[0178] Optionally, the material of the third isolation portion 33 includes molybdenum or titanium; and / or, the material of the first isolation portion 31 includes aluminum, silver or copper; and / or, the material of the second isolation portion 32 includes titanium or molybdenum.

[0179] The third isolation section 33 includes a conductive material, and the second electrode 6 corresponding to the light-emitting unit 7 extends to contact the side wall of the third isolation section 33 so as to realize the electrical connection between the second electrode 6 corresponding to the light-emitting unit 7 and the third isolation section 33.

[0180] For some possible implementations, please refer to Figure 14 This application also provides a method for manufacturing a display panel, the method comprising:

[0181] S10: Provide substrate 1.

[0182] S11: An isolation structure 3 is formed on one side of the substrate 1. The isolation structure 3 encloses and forms multiple sets of isolation openings 8. The multiple sets of isolation openings 8 include a first set of isolation openings, which includes a first isolation opening 81 and a second isolation opening 82.

[0183] Please see Figure 15 A pixel defining layer 2 and an isolation structure 3 are formed on one side of the substrate 1.

[0184] S12: At least a portion of a light-emitting unit 7 is formed within the isolation opening 8. The number of light-emitting units 7 is multiple. The multiple light-emitting units 7 include a first light-emitting unit. The first light-emitting unit includes a first light-emitting sub-unit 71 and a second light-emitting sub-unit 72 with the same light-emitting color. At least a portion of the first light-emitting sub-unit 71 is located within the first isolation opening 81, and at least a portion of the second light-emitting sub-unit 72 is located within the second isolation opening 82.

[0185] Please see Figure 16 At least a portion of the light-emitting unit 7 is formed within the isolation opening 8, and an encapsulation unit 10 is formed on the side of the light-emitting unit 7 away from the substrate 1.

[0186] S13: A diffusion layer 9 is formed on at least the side of the first light-emitting subunit 71 and the second light-emitting subunit 72 away from the substrate 1. The diffusion layer 9 includes a diffusion body portion 91 and a plurality of diffusion particles 92 located in the diffusion body portion 91. The refractive index of the diffusion particles 92 is different from the refractive index of the diffusion body portion 91.

[0187] Please see again Figure 5 A diffusion layer 9 is formed on the side of the packaging unit 10 away from the substrate 1.

[0188] In the display panel formed by the above method, since the refractive index of the diffuser particles 92 is different from that of the diffuser body 91, when the light emitted by the first light-emitting sub-unit 71 and the second light-emitting sub-unit 72 enters the diffuser particles 92 from the diffuser body 91, the light emitted by the first light-emitting sub-unit 71 and the second light-emitting sub-unit 72 will undergo refraction, reflection and scattering. In this way, the light emitted by the first light-emitting sub-unit 71 and the second light-emitting sub-unit 72 continuously passes through the two media with different refractive indices, the diffuser particles 92 and the diffuser body 91, which can have a diffusion effect on the light emitted by the first light-emitting sub-unit 71 and the second light-emitting sub-unit 72, and can atomize the light source of the first light-emitting sub-unit 71 and the second light-emitting sub-unit 72, thereby making the display difference between the first light-emitting sub-unit 71 and the second light-emitting sub-unit 72 smaller, thereby improving the orange peel texture phenomenon of the display panel, and ultimately improving the display effect of the display panel.

[0189] In some possible embodiments, this application also provides an electronic device, which includes the display panel described in this application, or a display panel prepared by the method described in this application. This electronic device may include a device with image processing capabilities, such as a server, personal computer, laptop computer, mobile phone, tablet computer, wearable device, in-vehicle display device, etc. Because this electronic device includes the display panel described in this application, its display effect is better.

[0190] 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.

[0191] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A display panel, characterized in that, The display panel includes: substrate; An isolation structure is located on one side of the substrate. The isolation structure encloses and forms multiple sets of isolation openings, including a first set of isolation openings, which includes a first isolation opening and a second isolation opening. Multiple light-emitting units, the multiple light-emitting units including a first light-emitting unit, the first light-emitting unit including a first light-emitting sub-unit and a second light-emitting sub-unit with the same light-emitting color, at least a portion of the first light-emitting sub-unit being located within the first isolation opening, and at least a portion of the second light-emitting sub-unit being located within the second isolation opening; A diffusion layer is located at least on the side of the first light-emitting subunit and the second light-emitting subunit away from the substrate. The diffusion layer includes a diffusion body and a plurality of diffusion particles located within the diffusion body. The refractive index of the diffusion particles is different from that of the diffusion body.

2. The display panel according to claim 1, characterized in that, The refractive index of the diffusing particles is less than the refractive index of the diffusing body. Preferably, the refractive index of the diffused particles is greater than or equal to 1.46 and less than or equal to 1.49; Preferably, the refractive index of the diffusion body is greater than or equal to 1.52 and less than or equal to 1.55; Preferably, the material of the diffusion body includes resin; Preferably, the material of the diffused particles includes acrylic; Preferably, the diffusion layer is located on the side of the plurality of light-emitting units away from the substrate.

3. The display panel according to claim 1, characterized in that, The multiple diffusing particles are randomly distributed within the diffusion body. Preferably, the orthographic projection of some of the plurality of diffuse particles on the substrate is located within the orthographic projection of the light-emitting unit on the substrate; Preferably, the orthographic projection of some of the plurality of diffuse particles onto the substrate lies within the orthographic projection of the isolation structure onto the substrate.

4. The display panel according to claim 1, characterized in that, The shape of the diffused particles includes spherical; Preferably, at least some of the diffused particles have different diameters; Preferably, the diameters of adjacent diffusing particles are different; Preferably, the diameter of the diffused particles is greater than or equal to 0.5 μm and less than or equal to 6 μm.

5. The display panel according to claim 1, characterized in that, The display panel further includes multiple encapsulation units, each encapsulation unit being located on the side of the corresponding light-emitting unit away from the substrate. A portion of the encapsulation unit extends from the side of the isolation structure toward the isolation opening to the side of the isolation structure away from the substrate. The diffusion layer is located on the side of the encapsulation unit away from the substrate. Preferably, the display panel further includes a second encapsulation layer located on the side of the encapsulation unit away from the substrate and a third encapsulation layer located on the side of the second encapsulation layer away from the substrate.

6. The display panel according to claim 5, characterized in that, The second encapsulation layer is the diffusion layer; Preferably, along the thickness direction of the substrate, the thickness of the diffusion layer is greater than or equal to 11 μm and less than or equal to 17 μm; Preferably, the diameter of the diffused particles is greater than or equal to 2 μm and less than or equal to 6 μm.

7. The display panel according to claim 5, characterized in that, The diffusion layer is located between the second encapsulation layer and the third encapsulation layer; Preferably, along the thickness direction of the substrate, the thickness of the diffusion layer is greater than or equal to 10 μm and less than or equal to 15 μm; Preferably, the diameter of the diffused particles is greater than or equal to 2.5 μm and less than or equal to 5 μm.

8. The display panel according to claim 5, characterized in that, The display panel further includes a touch layer, which is located on the side of the third encapsulation layer away from the substrate, and the diffusion layer is located between the touch layer and the third encapsulation layer; Preferably, along the thickness direction of the substrate, the thickness of the diffusion layer is greater than or equal to 10 μm and less than or equal to 15 μm; Preferably, the diameter of the diffused particles is greater than or equal to 2.5 μm and less than or equal to 5 μm.

9. The display panel according to claim 5, characterized in that, The display panel also includes: The touch layer is located on the side of the third encapsulation layer away from the substrate; The first organic adhesive layer is located on the side of the touch layer away from the substrate; Wherein, the first organic adhesive layer is the diffusion layer; Preferably, along the thickness direction of the substrate, the thickness of the diffusion layer is greater than or equal to 2.2 μm and less than or equal to 2.5 μm; Preferably, the diameter of the diffused particles is greater than or equal to 0.5 μm and less than or equal to 0.8 μm; Preferably, the display panel further includes a second organic adhesive layer located on the side of the diffusion layer away from the substrate.

10. The display panel according to claim 5, characterized in that, The display panel also includes: The touch layer is located on the side of the third encapsulation layer away from the substrate; The first organic adhesive layer is located on the side of the touch layer away from the substrate; The diffusion layer is located on the side of the first organic adhesive layer away from the substrate; Preferably, along the thickness direction of the substrate, the thickness of the diffusion layer is greater than or equal to 10 μm and less than or equal to 15 μm; Preferably, the diameter of the diffused particles is greater than or equal to 2.5 μm and less than or equal to 5 μm.

11. The display panel according to claim 5, characterized in that, The packaging unit includes a first packaging subunit and a second packaging subunit. The first packaging subunit is located on the side of the first light-emitting subunit away from the substrate, and the second packaging subunit is located on the side of the second light-emitting subunit away from the substrate. The first packaging subunit and the second packaging subunit are connected to each other, or the first packaging subunit and the second packaging subunit are spaced apart on the side of the isolation structure away from the substrate. Preferably, there is a gap between the packaging unit located on the side of the isolation structure away from the substrate and the side of the isolation structure away from the substrate; Preferably, the multiple encapsulation units corresponding to the multiple light-emitting units are arranged at intervals; Preferably, the materials of both the packaging unit and the third packaging layer include inorganic materials; Preferably, the material of the second encapsulation layer includes an organic material.

12. The display panel according to claim 1, characterized in that, The first light-emitting subunit includes a first sub-electrode, a first light-emitting functional part, and a second sub-electrode stacked sequentially along a direction away from the substrate. The second light-emitting subunit includes a third sub-electrode, a second light-emitting functional part, and a fourth sub-electrode stacked sequentially along a direction away from the substrate. The first sub-electrode and the third sub-electrode are connected to each other; or, the first sub-electrode and the third sub-electrode are spaced apart. Preferably, the plurality of isolation openings further includes a second group of isolation openings adjacent to the first group of isolation openings, wherein the distance between the first group of isolation openings and the second group of isolation openings is greater than the distance between the first isolation opening and the second isolation opening; Preferably, along the thickness direction of the substrate, the overlap height between the second sub-electrode and the corresponding isolation structure is different from the overlap height between the fourth sub-electrode and the corresponding isolation structure; Preferably, along the thickness direction of the substrate, the overlap area between the second sub-electrode and the corresponding isolation structure is different from the overlap area between the fourth sub-electrode and the corresponding isolation structure.

13. The display panel according to any one of claims 1-12, characterized in that, The isolation structure includes a first isolation portion and a second isolation portion stacked sequentially along a direction away from the substrate, wherein the orthogonal projection of the side of the first isolation portion away from the substrate on the substrate is located within the orthogonal projection of the second isolation portion on the substrate. Preferably, the light-emitting unit includes a first electrode, a light-emitting functional part, and a second electrode sequentially stacked along a direction away from the substrate, the isolation structure includes a conductive material, and the second electrode is electrically connected to the first isolation part; Preferably, the isolation structure further includes a third isolation portion located on the side of the first isolation portion facing the substrate, and the second electrode is electrically connected to the third isolation portion; Preferably, the material of the third isolation part includes molybdenum or titanium; and / or, the material of the first isolation part includes aluminum, silver or copper; and / or, the material of the second isolation part includes titanium or molybdenum.

14. A method for manufacturing a display panel, characterized in that, The method includes: Provide substrate; An isolation structure is formed on one side of the substrate, and the isolation structure encloses a plurality of isolation openings, the plurality of isolation openings including a first group of isolation openings, the first group of isolation openings including a first isolation opening and a second isolation opening; At least a portion of a light-emitting unit is formed within the isolation opening. The number of light-emitting units is multiple. The multiple light-emitting units include a first light-emitting unit. The first light-emitting unit includes a first light-emitting sub-unit and a second light-emitting sub-unit with the same light-emitting color. At least a portion of the first light-emitting sub-unit is located within the first isolation opening, and at least a portion of the second light-emitting sub-unit is located within the second isolation opening. A diffusion layer is formed at least on the side of the first light-emitting subunit and the second light-emitting subunit away from the substrate. The diffusion layer includes a diffusion body portion and a plurality of diffusion particles located within the diffusion body portion. The refractive index of the diffusion particles is different from that of the diffusion body portion.

15. An electronic device, characterized in that, The electronic device includes a display panel as described in any one of claims 1-13, or includes a display panel prepared by the method for preparing a display panel as described in claim 14.

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