Display panel and display device

Abstract

The invention provides a display panel and a display device.The display panel comprises a substrate, an isolation structure, a plurality of light-emitting units and a first packaging layer, the isolation structure, the light-emitting units and the first packaging layer are located on the substrate, a plurality of first openings are defined by the isolation structure, and the isolation structure comprises a first isolation part and a second isolation part which are stacked in sequence; the orthographic projection of the first isolation part on the substrate is located in the orthographic projection of the second isolation part on the substrate, at least part of the light-emitting unit is located in the corresponding first opening, and the first packaging layer is located on the side, away from the substrate, of the light-emitting unit and covers the light-emitting unit and part of the isolation structure. The material of at least part of the first isolation part and the material of the first packaging layer are the same kind of materials, so that the adhesion between the first isolation part and the first packaging layer is enhanced, the first packaging layer and the first isolation part are tightly jointed and can form a closed loop, the packaging effect between the first packaging layer and the isolation structure is enhanced, and the packaging quality is improved. And the packaging effect, the service life and the display effect of the display panel are improved.

Description

Technical Field

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

[0002] Organic Light-Emitting Diode (OLED) is an organic thin film electroluminescent device. It has attracted great attention and is widely used in electronic display products due to its advantages such as simple preparation process, low cost, low power consumption, high brightness, wide viewing angle, high contrast and flexible display.

[0003] However, current electronic display products are limited by their own structural designs, and packaging failures are very likely to occur during the packaging of the display panel, which seriously affects the packaging reliability of the display panel. Summary of the invention

[0004] In view of this, an object of the present disclosure is to provide a display panel and a display device, wherein the first packaging layer of the display panel is tightly bonded to the isolation structure and has good packaging performance.

[0005] Based on the above purpose, the present disclosure provides a display panel in a first aspect, the display panel comprising:

[0006] substrate;

[0007] an isolation structure, located at one side of the substrate, the isolation structure defining a plurality of first openings, the isolation structure comprising a first isolation portion and a second isolation portion, the second isolation portion being located at a side of the first isolation portion away from the substrate, and an orthographic projection of the first isolation portion on the substrate being located within an orthographic projection of the second isolation portion on the substrate;

[0008] a plurality of light emitting units, at least a portion of each of the light emitting units being located in a corresponding first opening;

[0009] The first packaging layer is located on a side of the light emitting unit away from the substrate and covers the light emitting unit and a portion of the isolation structure. The material of at least a portion of the first isolation portion is the same as that of the first packaging layer.

[0010] In one embodiment, the first isolation portion includes a first sub-isolation portion and a second sub-isolation portion, the second sub-isolation portion is located on a side of the first sub-isolation portion away from the substrate, and a material of the second sub-isolation portion is the same type of material as a material of the first encapsulation layer;

[0011] Preferably, the material of the second sub-isolating portion and the material of the first encapsulation layer are inorganic materials;

[0012] Preferably, the material of the second sub-isolating portion is the same as that of the first encapsulation layer;

[0013] Preferably, the material of the first sub-isolating portion is the same type of material as the material of the first encapsulation layer, or the first sub-isolating portion includes a conductive material;

[0014] Preferably, the isolation structure also includes a third isolation portion, which is located on a side of the first isolation portion close to the substrate, the orthographic projection of the first isolation portion on the substrate is located within the orthographic projection range of the third isolation portion on the substrate, and the orthographic projection of the third isolation portion on the substrate is located within the orthographic projection range of the second isolation portion on the substrate.

[0015] Preferably, the first sub-isolating portion, the second isolating portion and the third isolating portion are made of metal material.

[0016] In one embodiment, in a direction perpendicular to the surface of the substrate, the size of the second sub-isolation portion is a first size, and the first size is 1000-8000 angstroms;

[0017] Preferably, the first dimension is 3000-6000 angstroms.

[0018] In one embodiment, in a direction perpendicular to the surface of the substrate, a distance between a surface of the first isolation portion facing away from the substrate and a surface of the third isolation portion close to the substrate is a second dimension, and the second dimension is 6000-10000 angstroms.

[0019] In one embodiment, in a direction parallel to the surface of the substrate, an angle between an edge of a surface of the second sub-isolating portion close to the substrate and an edge of a surface of the second isolating portion close to the substrate and a plane perpendicular to the surface of the substrate is a first angle, and the first angle is 10-25°;

[0020] Preferably, the first angle is 10-15°;

[0021] Preferably, in a direction parallel to the surface of the substrate, the distance between the edge of the orthographic projection of the second sub-isolation portion on the substrate and the edge of the orthographic projection of the second isolation portion on the substrate is a first length, and the first length is not less than the product of the tangent value of the first angle and the first size.

[0022] In one embodiment, in a direction perpendicular to the surface of the substrate, a distance between a surface of the first sub-isolation portion facing away from the substrate and a surface of the third isolation portion close to the substrate is a third dimension, and the third dimension is 6000-10000 angstroms.

[0023] In one embodiment, the sidewall of the first isolation portion close to the first opening has a recessed portion, and a portion of the first encapsulation layer is located in the recessed portion;

[0024] Preferably, the orthographic projection of the second sub-isolating portion on the substrate is within the orthographic projection range of the first sub-isolating portion on the substrate, and the orthographic projection of the surface of the first sub-isolating portion facing away from the substrate on the substrate is within the orthographic projection range of the surface of the second sub-isolating portion close to the substrate on the substrate;

[0025] Preferably, an orthographic projection of a surface of the first sub-isolating portion facing away from the substrate on the substrate is located within the range of an orthographic projection of a surface of the first sub-isolating portion close to the substrate on the substrate.

[0026] In one embodiment, the light-emitting unit includes a first electrode, a light-emitting functional layer and a second electrode, the first electrode is located on the substrate, the light-emitting functional layer is located on the side of the first electrode away from the substrate, the second electrode is located on the side of the light-emitting functional layer away from the substrate, and the second electrode is electrically connected to the isolation structure.

[0027] In one embodiment, the display panel further includes a pixel defining layer located on a side of the isolation structure close to the substrate.

[0028] The pixel defining layer includes a pixel defining portion and a plurality of pixel openings defined by the pixel defining portion and corresponding to and connected with the first opening, the orthographic projection of the pixel opening on the substrate is located within the orthographic projection of the first opening on the substrate, and the pixel defining portion covers the gaps between adjacent first electrodes and the edges of the first electrodes.

[0029] A second aspect of the present disclosure provides a display device, which includes the above-mentioned display panel.

[0030] Compared with the prior art, the display panel provided by the present invention sets the material of at least part of the first isolation part and the material of the first encapsulation layer to the same type of material, thereby enhancing the adhesion between the first isolation part and the first encapsulation layer, so that the first encapsulation layer and the first isolation part are tightly bonded, and the first encapsulation layer can form a closed loop during encapsulation, thereby enhancing the encapsulation effect between the first encapsulation layer and the isolation structure, thereby improving the encapsulation effect, service life and display effect of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the present disclosure or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 is a cross-sectional schematic diagram of a display panel in the prior art;

[0033] Figure 2 A partial cross-sectional view of a display panel provided in the first aspect of the present disclosure Figure 1 ;

[0034] Figure 3 A partial cross-sectional view of a display panel provided in the first aspect of the present disclosure Figure 2 ;

[0035] Figure 4 A partial cross-sectional view of a display panel provided in the first aspect of the present disclosure Figure 3 ;

[0036] Figure 5 A partial cross-sectional view of a display panel provided in the first aspect of the present disclosure Figure 4 . DETAILED DESCRIPTION

[0037] In order to make the objectives, technical solutions and advantages of the present disclosure more clearly understood, the present disclosure is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0038] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in the embodiments of the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0039] refer to Figure 1 , Figure 1Schematic diagram of a cross-section of a display panel in the prior art; a first encapsulation layer 500, a light-emitting device 200 and an isolation structure 300 are provided in the display panel. The first encapsulation layer 500 covers the light-emitting device 200 and plays the role of encapsulating the light-emitting device 200. However, since the material of the isolation structure 300 itself is a metal conductive material, the adhesion between the first encapsulation layer 500 and the metal film layer in the isolation structure 300 is poor, which may cause partial pixel encapsulation failure or reliability failure (such as Figure 1 Therefore, how to improve the encapsulation of the first encapsulation layer has become an urgent problem to be solved.

[0040] Based on the above reasons, the present disclosure provides a first aspect to provide a display panel, which has a good packaging effect.

[0041] Next join Figure 2-Figure 5 The display panel provided by the embodiment of the present application is described below. The display panel includes a substrate 10, an isolation structure 30, a plurality of light-emitting units, and a first encapsulation layer 50. The isolation structure 30 is located on the substrate 10. The isolation structure 30 defines a plurality of first openings. The isolation structure 30 includes a first isolation portion 31 and a second isolation portion 32. The second isolation portion 32 is located on the side of the first isolation portion 31 away from the substrate 10. The orthographic projection of the first isolation portion 31 on the substrate 10 is located within the orthographic projection of the second isolation portion 32 on the substrate 10. At least a portion of the light-emitting unit 50 is located within the first opening 34. The first encapsulation layer 50 is located on the side of the light-emitting unit 5 away from the substrate 10. The first encapsulation layer 50 is provided on one side of the first isolation portion 10 and covers the light-emitting unit 20 and a part of the isolation structure 30. The material of at least a part of the first isolation portion 31 is the same type of material as the material of the first encapsulation layer 50. The material of at least a part of the first isolation portion and the material of the first encapsulation layer are set to be the same type of material, thereby enhancing the adhesion between the first isolation portion and the first encapsulation layer, so that the first encapsulation layer and the first isolation portion are tightly bonded, and the first encapsulation layer can form a closed loop during encapsulation, thereby enhancing the encapsulation effect between the first encapsulation layer and the isolation structure, thereby improving the encapsulation effect, service life and display effect of the display panel.

[0042] The composition, preparation and other contents of the isolation structure (or partition structure or isolation column) mentioned below are described in patents CN118251982A, 202410864269.8, PCT / CN2024 / 098407, PCT / CN2024 / 102783, PCT / CN2024 / 098217, PCT / CN2024 / 099419, PCT / CN2024 / 0 99072, CN117979755A, CN117998900A, CN117062489A, CN117580403A, CN116583155A, CN116669477A, ​​CN117396039A, CN116669480A, CN116600606A, and CN117500332A for reference.

[0043] In the present disclosure, the substrate 10 includes a substrate and a driving circuit layer. The substrate can be a rigid substrate or a flexible substrate. When the substrate is a rigid substrate, the material of the substrate can be glass or silicon wafer, etc. When the substrate is a flexible substrate, the material of the substrate can be polyethersulfone (PES), polyacrylate (PAR), polyetherimide (PEI), polyethylene naphthalate (PEN), polyethylene terephthalate (PET), polyphenylene sulfide (PPS), polyarylate, polyimide (PI), polycarbonate (PC) or cellulose acetate propionate (CAP), etc. The driving circuit layer 12 includes a plurality of pixel driving circuits located in the display area, and the light-emitting unit is electrically connected to the pixel driving circuit. For example, the pixel driving circuit 121 may include a plurality of transistors TFT, capacitors, etc., for example, formed in various forms such as 2T1C (i.e., 2 transistors (TFT) and 1 capacitor (C)), 3T1C or 7T1C. The pixel driving circuit is connected to the light-emitting unit to control the switching state and light brightness of the light-emitting unit.

[0044] refer to Figure 2-Figure 5 In a specific embodiment, the light-emitting unit 20 includes a first electrode 21, a light-emitting functional layer 22 and a second electrode 23. The first electrode 21 is located on the substrate 10, the light-emitting functional layer 22 is located on the side of the first electrode 21 away from the substrate 10, and the second electrode 23 is located on the side of the light-emitting functional layer 22 away from the substrate 10. The second electrode 23 is electrically connected to the isolation structure 20. Specifically, when the first isolation portion 31 includes a conductive material, the second electrode 23 is electrically connected to the first sub-isolation portion 311. It should be noted that the first electrode 21 in this embodiment can be the anode of the light-emitting unit 20, and the second electrode 23 can be the cathode of the light-emitting unit 20.

[0045] Exemplarily, the light-emitting functional layer 22 includes a hole injection layer (HIL), a hole transport layer (HTL), an electron blocking layer (EBL), an emission layer (EML), a hole blocking layer (HBL), an electron transport layer (ETL) and an electron injection layer (EIL) stacked in sequence.

[0046] refer to Figure 2 In a specific embodiment, the display panel also includes a pixel defining layer, which is located on the substrate (located on the side of the isolation structure close to the substrate), the pixel defining layer includes a pixel defining portion 40 and a plurality of pixel openings 41 formed by the pixel defining portion, and at least a portion of the light-emitting device 20 is disposed in the pixel opening 41. Exemplarily, the material of the pixel defining portion 40 is an inorganic insulating material, and the pixel defining layer 40 covers the gap between adjacent first electrodes 21 and the edge of the first electrode 21. By providing the pixel defining layer, the first electrode 21 can be prevented from contacting the isolation structure 30, and the design area of ​​the first electrode 21 can be increased, so that the light-emitting unit 20 has a larger effective light-emitting area.

[0047] refer to Figure 2-Figure 4In a specific embodiment, the isolation structure 30 is located on the substrate 10, and the isolation structure 30 defines a plurality of first openings 34, the first openings 34 correspond to and are connected to the pixel openings 41, and the orthographic projection of the pixel openings 41 on the substrate 10 is located within the orthographic projection of the first openings 34 on the substrate 10, the isolation structure 30 includes a first isolation portion 31 and a second isolation portion 32, the second isolation portion 32 is located on a side of the first isolation portion 31 away from the substrate 10, and the orthographic projection of the first isolation portion 31 on the substrate 10 is located within the orthographic projection of the second isolation portion 32 on the substrate 10, wherein the first isolation portion 31 includes a first sub-isolation portion 311 and a second sub-isolation portion 312, the second sub-isolation portion 312 is located on a side of the first sub-isolation portion 311 away from the substrate 10, and the orthographic projection of the second sub-isolation portion 312 on the substrate 10 is located within the orthographic projection range of the first sub-isolation portion 311 on the substrate 10, and in one embodiment, the material of a part of the film layer of the first isolation portion is the same type of material as the material of the first encapsulation layer, such as the material of the first sub-isolation portion 311 is a conductive material, The material of the second sub-isolating portion 312 is the same as the material of the first encapsulation layer 50. Exemplarily, the material of the second isolating portion may be a metal material, such as titanium, the material of the first sub-isolating portion may be a metal material, such as aluminum or copper, and the material of the second sub-isolating portion 312 may be an inorganic material, such as silicon nitride, silicon oxide, titanium nitride, or silicon oxynitride. In a preferred embodiment, the material of the second sub-isolating portion 312 is the same as the material of the first encapsulation layer 50, such as the materials of the second sub-isolating portion 312 and the first encapsulation layer 50 are both silicon nitride. In this embodiment, by making the material of the second sub-isolating portion 312 and the material of the first encapsulation layer 50 the same, the second sub-isolating portion 312 and the first encapsulation layer 50 have good adhesion, so that the first encapsulation layer 50 and the second sub-isolating portion 312 are tightly bonded, and the first encapsulation layer 550 can form a closed-loop structure during encapsulation, thereby enhancing the encapsulation effect between the first encapsulation layer 50 and the isolation structure 30, thereby improving the encapsulation effect, service life and display effect of the display panel. In another embodiment, all film layer materials of the first isolation portion 31 are of the same type as the materials of the first encapsulation layer 50, such as the materials of the first sub-isolation portion 311 and the materials of the second sub-isolation portion 312 are of the same type as the materials of the first encapsulation layer 50. Exemplarily, the materials of the first sub-isolation portion 311 and the second sub-isolation portion 312 can both be inorganic materials, such as the material of the first sub-isolation portion 311 is silicon nitride or silicon oxide, and the material of the second sub-isolation portion 312 can be silicon nitride, silicon oxide, titanium nitride, or silicon oxynitride.In this embodiment, by making all the film layer materials of the first isolation portion 31 and the material of the first encapsulation layer 50 the same type of material, the first sub-isolation portion 311 and the second sub-isolation portion 312 have good adhesion to the first encapsulation layer 50, further enhancing the encapsulation effect between the first encapsulation layer 50 and the isolation structure 30, and improving the encapsulation effect, service life and display effect of the display panel. Furthermore, the material of the first sub-isolation portion 311 and the material of the second sub-isolation portion 312 may be the same or different. For example, the material of the first sub-isolation portion 311 and the material of the second sub-isolation portion 312 are both silicon nitride or silicon oxide. The material of the first sub-isolation portion 311 is different from the material of the second sub-isolation portion 312, such as the material of the first sub-isolation portion 311 is silicon oxide, and the material of the second sub-isolation portion 312 is silicon nitride. Furthermore, the adhesion between the second sub-isolation portion 312 and the first encapsulation layer 50 is greater than the adhesion between the first sub-isolation portion 311 and the first encapsulation layer 50. The material of the second sub-isolation portion 312 is the same as the material of the first encapsulation layer 50, such as the material of the second sub-isolation portion 312 and the first encapsulation layer 50 are both silicon nitride. This design avoids warping of the first encapsulation layer 50 when connecting the second sub-isolation portion 312 and the second isolation portion 32.

[0048] refer to Figure 2 In a specific embodiment, the side wall of the first isolation portion 31 close to the first opening 34 has a recessed portion C, and part of the first encapsulation layer 50 is located in the recessed portion C, that is, the first encapsulation layer 50 fills the recessed portion C. By setting the recessed portion C, the contact area between the first encapsulation layer 50 and the side wall surface of the isolation structure 30 is increased, thereby enhancing the durability of the first encapsulation layer 30 and extending the service life of the display panel. Furthermore, the orthographic projection of the side surface of the first sub-isolation portion 311 facing away from the substrate 10 on the substrate 10 is located within the orthographic projection range of the side surface of the second sub-isolation portion 312 close to the substrate 10 on the substrate 10, and the orthographic projection of the side surface of the first sub-isolation portion 311 facing away from the substrate 10 on the substrate is located within the range of the orthographic projection of the side surface of the first sub-isolation portion 312 close to the substrate 10 on the substrate 10, so that the connection surface of the first sub-isolation portion 311 and the second sub-isolation portion 312 has the recessed portion C, thereby increasing the contact area between the isolation structure 30 and the first encapsulation layer 50, and improving the encapsulation performance between the first encapsulation layer 50 and the isolation structure 30.

[0049] Furthermore, the isolation structure 30 also includes a third isolation portion 33, the orthographic projection of the first isolation portion 31 on the substrate 10 is located within the orthographic projection range of the third isolation portion 33 on the substrate 10, and the orthographic projection of the third isolation portion 33 on the substrate 10 is located within the orthographic projection range of the second isolation portion 32 on the substrate 10. In this embodiment, the third isolation portion 33 is arranged to protrude from the first isolation portion 31 toward the first opening 34, which is beneficial to improve the overlap rate of the second electrode 23 (cathode) and ensure effective transmission of the signal. Among them, the second electrode 23 of the light-emitting unit 20 overlaps with the third isolation portion 33, and when the first sub-isolation portion 311 includes a conductive material, the second electrode 23 overlaps with both the third isolation portion 33 and the first sub-isolation portion 311. Exemplarily, the material of the third isolation portion 33 includes a metal material, such as the material of the third isolation portion 33 is molybdenum (Mo) or indium tin oxide (ITO).

[0050] refer to Figure 2-Figure 5 In one embodiment, in the direction perpendicular to the surface of the substrate 10 (Z direction), the size of the second sub-isolating portion 312 is the first size h1, and the first size h1 is 1000-8000 Angstroms; it should be noted that the first size in this embodiment specifically refers to the distance between the surface of the second sub-isolating portion 312 close to the substrate and the surface of the second sub-isolating portion 312 away from the substrate in the direction perpendicular to the surface of the substrate 10 (Z direction). As a preferred embodiment, the first size h1 is 3000-6000 Angstroms. Since part of the film layer in the light-emitting unit needs to be evaporated in the first opening later, the distance between the edge of the orthographic projection of the second sub-isolating portion 312 on the substrate 10 and the edge of the orthographic projection of the second isolating portion 32 on the substrate 10 in the direction parallel to the surface of the substrate 10 (X direction) is limited to ensure that the thickness of part of the film layer in the light-emitting unit 20 is uniform and part of the film layer can be effectively overlapped with the first sub-isolating portion. Specifically, in the direction parallel to the surface of the substrate 10 (X direction), the distance between the edge of the second sub-isolation portion 312 close to the orthographic projection on the substrate 10 and the edge of the orthographic projection of the second isolation portion 32 on the substrate 10 is the first length L1. The length of the first length L1 is defined from two aspects below.

[0051] refer to Figure 2 and Figure 3On the one hand, in the direction perpendicular to the surface of the substrate 10 (Z direction), the distance between the surface of the first isolation portion 31 facing away from the substrate 10 and the surface of the third isolation portion 33 close to the substrate 10 is a second dimension h2, and the second dimension h2 is 6000-10000 angstroms. It should be noted that the second dimension h2 here refers to the overall dimension (height) of the first isolation portion 31 and the third isolation portion 33 in the direction perpendicular to the surface of the substrate 10 (Z direction). Furthermore, the angle between the edge of the surface of the second sub-isolating portion 312 close to the substrate 10 side and the connecting surface P1 between the edge of the surface of the second isolation portion 32 close to the substrate 10 side and the surface P2 perpendicular to the substrate 10 is the first angle a. The first angle a is between 10-25°. As a preferred embodiment, the first angle a is between 10-15°. Furthermore, the first distance L1 is not less than the product of the tangent value of the first angle a and the first dimension h1, that is, L1≥tana*h1. This arrangement avoids the second sub-isolating portion 312 from being too long in the direction parallel to the surface of the substrate 10 (X direction), which affects the subsequent evaporation of part of the functional film layer 20 in the light-emitting unit, and is beneficial to ensuring the uniformity of the thickness of part of the functional film layer of the light-emitting unit 20 and the effectiveness of the evaporation.

[0052] refer to Figure 4 and Figure 5 On the other hand, in the direction perpendicular to the surface of the substrate 10 (Z direction), the distance between the surface of the first sub-isolating portion 311 facing away from the substrate 10 and the surface of the third isolating portion 33 close to the substrate 10 is a third dimension h3, and the third dimension h3 is between 6000 and 10000 angstroms; it can be understood that, that is, in the direction perpendicular to the surface of the substrate 10 (Z direction), the third dimension h3 is the overall dimension (height) of the first sub-isolating portion 311 and the third isolating portion 33. It should be noted that in this embodiment, the second sub-isolating layer 312 is regarded as the entire isolation layer. Another second isolation portion 32 (eaves portion) of the structure 30 also serves as a shielding and protective function, so the distance between the edge of the orthographic projection of the second sub-isolation portion 312 on the substrate 10 and the edge of the orthographic projection of the second isolation portion 32 on the substrate 10 in the direction parallel to the surface of the substrate 10 (X direction) does not need to be limited in this aspect, but in a general manufacturing process, the orthographic projection of the second sub-isolation portion 312 on the substrate 10 is located within the range of the orthographic projection of the second isolation portion 32 on the substrate 10, that is, the second isolation 32 is arranged to protrude from the second sub-isolation portion 312 toward the first opening 34.

[0053] refer to Figure 5In a specific embodiment, the first encapsulation layer 50 includes a plurality of encapsulation parts, the encapsulation parts are located on the side of the corresponding light-emitting unit 20 away from the substrate 10, and extend along the side wall of the isolation structure 30 to the side of the isolation structure 30 away from the substrate 10. Exemplarily, the material of the first encapsulation layer 50 (encapsulation part) is an inorganic material, such as the material of the first encapsulation layer can be one or a combination of silicon nitride, silicon oxide or aluminum oxide. Preferably, the material of the first encapsulation layer can be silicon nitride; the display panel also includes a second encapsulation layer 60 and a third encapsulation layer 70, the second encapsulation layer 60 is located on the side of the first encapsulation layer 50 away from the substrate 10, and the third encapsulation layer 70 is located on the side of the second encapsulation layer 60 away from the substrate 10. For example, the material of the third encapsulation layer 70 includes an inorganic material, and for example, the material of the second encapsulation layer 60 includes an organic material. In this way, multi-layer encapsulation is achieved by the first encapsulation layer 50, the second encapsulation layer 60 and the third encapsulation layer 70, which can further improve the encapsulation performance and the reliability of the display panel. The inorganic layer and the organic layer are stacked to provide protection for the display panel. Inorganic materials generally have good density and can isolate water vapor and oxygen. Organic materials have flexible characteristics. Using organic materials as a second encapsulation layer can buffer stress from the outside world and prevent the display panel from being affected by external stress. At the same time, it can reduce the risk of encapsulation failure caused by inorganic layer breakage.

[0054] The second aspect of the present disclosure also provides a display device, which includes the above-mentioned display panel provided by the embodiment of the present disclosure. Since the principle of solving the problem by the display device is similar to the principle of solving the problem by the above-mentioned display panel, the implementation of the display device provided by the embodiment of the present disclosure can refer to the implementation of the above-mentioned display panel provided by the embodiment of the present disclosure, and the repeated parts will not be repeated.

[0055] The display device provided in the embodiment of the present invention can be applied to a mobile phone, or any electronic product with a display function, including but not limited to the following categories: televisions, laptops, desktop displays, tablet computers, digital cameras, smart bracelets, smart glasses, car displays, medical equipment, industrial control equipment, touch interactive terminals, etc. The embodiment of the present invention does not make any special limitations on this.

[0056] It should be noted that the above describes some embodiments of the present disclosure. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the above embodiments and still achieve the desired results. In addition, the processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0057] The embodiments of the present disclosure are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present disclosure should be included in the scope of protection of the present disclosure.

Claims

1. A display panel, characterized in that: include: substrate; an isolation structure, located at one side of the substrate, the isolation structure defining a plurality of first openings, the isolation structure comprising a first isolation portion and a second isolation portion, the second isolation portion being located at a side of the first isolation portion away from the substrate, and an orthographic projection of the first isolation portion on the substrate being located within an orthographic projection of the second isolation portion on the substrate; a plurality of light emitting units, at least a portion of each of the light emitting units being located in a corresponding first opening; The first packaging layer is located on a side of the light emitting unit away from the substrate and covers the light emitting unit and a portion of the isolation structure. The material of at least a portion of the first isolation portion is the same as that of the first packaging layer.

2. The display panel according to claim 1, characterized in that: The first isolation portion includes a first sub-isolation portion and a second sub-isolation portion, the second sub-isolation portion is located at a side of the first sub-isolation portion away from the substrate, and a material of the second sub-isolation portion is the same type of material as a material of the first encapsulation layer; Preferably, the material of the second sub-isolating portion and the material of the first encapsulation layer are inorganic materials; Preferably, the material of the second sub-isolating portion is the same as that of the first encapsulation layer; Preferably, the material of the first sub-isolating portion is the same type of material as the material of the first encapsulation layer, or the first sub-isolating portion includes a conductive material; Preferably, the isolation structure further comprises a third isolation portion, the third isolation portion is located on a side of the first isolation portion close to the substrate, the orthographic projection of the first isolation portion on the substrate is located within the orthographic projection range of the third isolation portion on the substrate, and the orthographic projection of the third isolation portion on the substrate is located within the orthographic projection range of the second isolation portion on the substrate; Preferably, the first sub-isolating portion, the second isolating portion and the third isolating portion are made of metal material.

3. The display panel according to claim 2, characterized in that: In a direction perpendicular to the surface of the substrate, the size of the second sub-isolation portion is a first size, and the first size is 1000-8000 angstroms; Preferably, the first dimension is 3000-6000 angstroms.

4. The display panel according to claim 3, characterized in that: In a direction perpendicular to the surface of the substrate, a distance between a surface of the first isolation portion facing away from the substrate and a surface of the third isolation portion close to the substrate is a second dimension, and the second dimension is 6000-10000 angstroms.

5. The display panel according to claim 4, characterized in that: In a direction parallel to the surface of the substrate, an angle between an edge of the surface of the second sub-isolating portion close to the substrate and an edge of the surface of the second isolating portion close to the substrate and a line perpendicular to the surface of the substrate is a first angle, and the first angle is 10-25°; Preferably, the first angle is 10-15°; Preferably, in a direction parallel to the surface of the substrate, the distance between the edge of the orthographic projection of the second sub-isolation portion on the substrate and the edge of the orthographic projection of the second isolation portion on the substrate is a first length, and the first length is not less than the product of the tangent value of the first angle and the first size.

6. The display panel according to claim 3, characterized in that: In a direction perpendicular to the surface of the substrate, a distance between a surface of the first sub-isolation portion facing away from the substrate and a surface of the third isolation portion close to the substrate is a third dimension, and the third dimension is 6000-10000 angstroms.

7. The display panel according to claim 2, characterized in that: The side wall of the first isolation portion close to the first opening has a recessed portion, and a portion of the first encapsulation layer is located in the recessed portion; Preferably, the orthographic projection of the second sub-isolating portion on the substrate is within the orthographic projection range of the first sub-isolating portion on the substrate, and the orthographic projection of the surface of the first sub-isolating portion facing away from the substrate on the substrate is within the orthographic projection range of the surface of the second sub-isolating portion close to the substrate on the substrate; Preferably, an orthographic projection of a surface of the first sub-isolating portion facing away from the substrate on the substrate is located within the range of an orthographic projection of a surface of the first sub-isolating portion close to the substrate on the substrate.

8. The display panel according to claim 1, characterized in that: The light-emitting unit includes a first electrode, a light-emitting functional layer and a second electrode. The first electrode is located on the substrate, the light-emitting functional layer is located on the side of the first electrode away from the substrate, the second electrode is located on the side of the light-emitting functional layer away from the substrate, and the second electrode is electrically connected to the isolation structure.

9. The display panel according to claim 8, characterized in that: The display panel further includes a pixel defining layer located on a side of the isolation structure close to the substrate. The pixel defining layer includes a pixel defining portion and a plurality of pixel openings defined by the pixel defining portion and corresponding to and connected with the first opening, the orthographic projection of the pixel opening on the substrate is located within the orthographic projection of the first opening on the substrate, and the pixel defining portion covers the gaps between adjacent first electrodes and the edges of the first electrodes.

10. A display panel, characterized in that: include: substrate; an isolation structure, located on the substrate, the isolation structure defining a plurality of first openings, the isolation structure comprising a first isolation portion and a second isolation portion, the second isolation portion being located on a side of the first isolation portion away from the substrate, the orthographic projection of the first isolation portion on the substrate being located within the orthographic projection of the second isolation portion on the substrate, and the sidewall of the first isolation portion close to the first opening having a recessed portion; a plurality of light emitting units, at least a portion of each of the light emitting units being located in a corresponding first opening; The first encapsulation layer is located on a side of the light emitting unit away from the substrate, the first encapsulation layer covers the light emitting unit and a portion of the isolation structure, and a portion of the first encapsulation layer is located in the recessed portion.

11. The display panel according to claim 10, characterized in that: The first isolation portion includes a first sub-isolation portion and a second sub-isolation portion, the second sub-isolation portion is located on a side of the first sub-isolation portion away from the substrate, and the orthographic projection of the second sub-isolation portion on the substrate is located within the orthographic projection range of the first sub-isolation portion on the substrate; Preferably, the orthographic projection of the surface of the first sub-isolating portion facing away from the substrate on the substrate is within the range of the orthographic projection of the surface of the second sub-isolating portion close to the substrate on the substrate; Preferably, the orthographic projection of the surface of the first sub-isolating portion facing away from the substrate on the substrate is located within the range of the orthographic projection of the surface of the first sub-isolating portion close to the substrate on the substrate; Preferably, the isolation structure also includes a third isolation portion, which is located on a side of the first isolation portion close to the substrate, the orthographic projection of the first isolation portion on the substrate is located within the orthographic projection range of the third isolation portion on the substrate, and the orthographic projection of the third isolation portion on the substrate is located within the orthographic projection range of the second isolation portion on the substrate.

12. The display panel according to claim 11, characterized in that: In a direction perpendicular to the surface of the substrate, the size of the second sub-isolation portion is a first size, and the first size is 1000-8000 angstroms; Preferably, the first dimension is 3000-6000 angstroms.

13. The display panel according to claim 12, characterized in that: In a direction perpendicular to the surface of the substrate, a distance between a surface of the first isolation portion facing away from the substrate and a surface of the third isolation portion close to the substrate is a second dimension, and the second dimension is 6000-10000 angstroms.

14. The display panel according to claim 13, characterized in that: In a direction parallel to the surface of the substrate, an angle between an edge of the surface of the second sub-isolating portion close to the substrate and an edge of the surface of the second isolating portion close to the substrate and a line perpendicular to the surface of the substrate is a first angle, and the first angle is 10-25°; Preferably, the first angle is 10-15°; Preferably, in a direction parallel to the surface of the substrate, the distance between the edge of the orthographic projection of the second sub-isolation portion on the substrate and the edge of the orthographic projection of the second isolation portion on the substrate is a first length, and the first length is not less than the product of the tangent value of the first angle and the first size.

15. The display panel according to claim 12, characterized in that: In a direction perpendicular to the surface of the substrate, a distance between a surface of the first sub-isolation portion facing away from the substrate and a surface of the third isolation portion close to the substrate is a third dimension, and the third dimension is 6000-10000 angstroms.

16. The display panel according to claim 10, characterized in that: The light-emitting unit includes a first electrode, a light-emitting functional layer and a second electrode. The first electrode is located on the substrate, the light-emitting functional layer is located on the side of the first electrode away from the substrate, the second electrode is located on the side of the light-emitting functional layer away from the substrate, and the second electrode is electrically connected to the isolation structure.

17. The display panel according to claim 16, characterized in that: The display panel further includes a pixel defining layer located on a side of the isolation structure close to the substrate. The pixel defining layer includes a pixel defining portion and a plurality of pixel openings defined by the pixel defining portion and corresponding to and connected with the first opening, the orthographic projection of the pixel opening on the substrate is located within the orthographic projection of the first opening on the substrate, and the pixel defining portion covers the gaps between adjacent first electrodes and the edges of the first electrodes.

18. A display panel, characterized in that: The invention is characterized by comprising: substrate; an isolation structure, located on the substrate, the isolation structure defining a plurality of first openings, the isolation structure comprising a first isolation portion and a second isolation portion, the second isolation portion being located on a side of the first isolation portion away from the substrate, and an orthographic projection of the first isolation portion on the substrate being located within an orthographic projection of the second isolation portion on the substrate; a plurality of light emitting units, at least a portion of each of the light emitting units being located in a corresponding first opening; The first encapsulation layer is located on the side of the light-emitting unit away from the substrate, and covers the light-emitting unit and part of the isolation structure. The adhesion between at least part of the first isolation part and the first encapsulation layer is greater than the adhesion between the second isolation part and the first encapsulation layer.

19. The display panel according to claim 18, characterized in that: The first isolation portion includes a first sub-isolation portion and a second sub-isolation portion, the second sub-isolation portion is located on a side of the first sub-isolation portion away from the substrate, the orthographic projection of the second sub-isolation portion on the substrate is located within the orthographic projection range of the first sub-isolation portion on the substrate, and the material of the second sub-isolation portion is the same type of material as the material of the first encapsulation layer; Preferably, the material of the second sub-isolating portion is the same as that of the first encapsulation layer; Preferably, the material of the first sub-isolating portion is the same type of material as the material of the first encapsulation layer, or the first sub-isolating portion includes a conductive material; Preferably, the adhesion between the first encapsulation layer and the second sub-isolating portion is greater than or equal to the adhesion between the first encapsulation layer and the first sub-isolating portion; Preferably, the isolation structure also includes a third isolation portion, which is located on a side of the first isolation portion close to the substrate, the orthographic projection of the first isolation portion on the substrate is located within the orthographic projection range of the third isolation portion on the substrate, and the orthographic projection of the third isolation portion on the substrate is located within the orthographic projection range of the second isolation portion on the substrate.

20. A display device, characterized in that: Comprising a display panel as described in any one of claims 1-19.

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