Display panel and display device

Abstract

The invention provides a display panel and a display device. The display panel comprises a substrate; the isolation structure is arranged on one side of the substrate, and an isolation opening is defined by the isolation structure; the light-emitting device comprises a first electrode, a light-emitting functional layer and a second electrode which are stacked on the substrate and are sequentially far away from the substrate, and the light-emitting functional layer and the second electrode are located in the isolation opening; and the insulating partition structure is arranged on one side, close to the light-emitting device, of the isolation structure, so that at least part of the light-emitting functional layer is electrically isolated from the isolation structure. According to the display panel, the light-emitting function layer and the isolation structure are electrically isolated through the insulation isolation structure, the phenomenon of transverse crosstalk between the adjacent sub-pixels caused by lap joint of the light-emitting function layer and the isolation structure is avoided, and the display effect can be improved.

Description

Technical Field

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

[0002] OLED (Organic Light-Emitting Diode) is an active light-emitting device with a sandwich structure consisting of multiple organic layers and electrodes on both sides. Currently, display screens based on AMOLED (Active-matrix organic light-emitting diode) have been commercialized in the fields of smartphones, watches, and laptops.

[0003] However, existing display screens have the problem of lateral leakage, which will affect the display effect and the performance needs to be improved. Summary of the invention

[0004] In view of this, the purpose of the present application is to provide a display panel and a display device that improve lateral leakage and enhance display effects.

[0005] Based on the above purpose, the present application provides a display panel, which includes:

[0006] substrate;

[0007] An isolation structure, disposed on one side of the substrate, wherein the isolation structure defines an isolation opening;

[0008] A light emitting device, the light emitting device comprising a first electrode, a light emitting functional layer, and a second electrode stacked on the substrate and sequentially away from the substrate, the light emitting functional layer and the second electrode being located in the isolation opening;

[0009] The insulating isolation structure is arranged on a side of the isolation structure close to the light-emitting device, so as to electrically isolate at least a part of the light-emitting functional layer from the isolation structure.

[0010] In one embodiment, the isolation structure includes a support portion and a crown portion, the crown portion is located on a side of the support portion away from the substrate, and an orthographic projection of an end of the support portion close to the crown portion on the substrate is located within an orthographic projection of the crown portion on the substrate;

[0011] The insulating partition structure is located on a side of the support portion close to the light-emitting device, and the orthographic projection of the insulating partition structure on the substrate does not overlap with the orthographic projection of the support portion on the substrate;

[0012] Preferably, the orthographic projection of the insulating partition structure on the substrate at least partially overlaps with the orthographic projection of the crown on the substrate;

[0013] Preferably, the second electrode is electrically connected to the support portion, and the orthographic projection of the insulating partition structure on the substrate is located within the orthographic projection of the second electrode on the substrate;

[0014] Preferably, the material of the support portion and the material of the crown portion are two different metals;

[0015] Preferably, the support portion is made of Al, and the crown portion is made of Ti or Mo.

[0016] In one embodiment, the second electrode is located on a side of the light-emitting functional layer and the insulating partition structure away from the substrate, and at least partially extends to a side wall of the isolation structure close to the light-emitting device, the second electrode includes an extension portion close to a side of the isolation structure, the orthographic projection of the light-emitting functional layer on the substrate is located within the range of the orthographic projection of the extension portion on the substrate, and the extension portion is at least partially in contact with a surface of the insulating partition structure on a side away from the substrate;

[0017] Preferably, along a direction perpendicular to the substrate, the height of the isolation structure is 2 to 200 times the height of the insulating partition structure;

[0018] Preferably, along a direction perpendicular to the substrate, a height of the insulating partition structure is 10-1000 nm.

[0019] In one embodiment, the insulating partition structure includes a first partition portion and a second partition portion, the second partition portion is located between the first partition portion and the isolation structure; the distance between the surface of the second partition portion away from the substrate and the substrate is greater than the distance between the surface of the first partition portion away from the substrate and the substrate;

[0020] Wherein, at least a portion of the extension portion is in contact with a surface of the second partition portion on a side away from the substrate;

[0021] Preferably, the orthographic projection of the light-emitting functional layer on the substrate and the orthographic projection of the second partition portion on the substrate do not overlap each other;

[0022] Alternatively, the orthographic projection of the light-emitting functional layer on the substrate does not overlap with the orthographic projections of the second partition portion and the first partition portion on the substrate.

[0023] In one embodiment, the insulating partition structure further includes a third partition portion, and along the direction from the light emitting device to the isolation structure, the first partition portion, the second partition portion and the third partition portion are arranged in sequence;

[0024] Wherein, the distance between the surface of the third partition portion away from the substrate and the substrate is smaller than the distance between the surface of the second partition portion away from the substrate and the substrate;

[0025] Preferably, the extension portion is located on a side of the third partition portion away from the substrate, and the extension portion is in contact with a surface of the third partition portion away from the substrate;

[0026] The orthographic projection of the third partition portion on the substrate is located within the orthographic projection range of the extension portion on the substrate;

[0027] Preferably, the extension portion is located on a side of the third partition portion and the second partition portion away from the substrate, and the orthographic projections of the third partition portion and the second partition portion on the substrate are located within the orthographic projection range of the extension portion on the substrate.

[0028] In one embodiment, the insulating partition structure further includes a third partition portion, and along the direction from the light emitting device to the isolation structure, the first partition portion, the second partition portion and the third partition portion are arranged in sequence;

[0029] Wherein, the distance between the surface of the third partition portion away from the substrate and the substrate is greater than the distance between the surface of the second partition portion away from the substrate and the substrate;

[0030] Preferably, the extension portion is located on a side of the third partition portion away from the substrate, and the extension portion is in contact with a surface of the third partition portion away from the substrate;

[0031] The orthographic projection of the third partition portion on the substrate is located within the orthographic projection range of the extension portion on the substrate;

[0032] Preferably, the extension portion is located on a side of the third partition portion and the second partition portion away from the substrate, and the orthographic projections of the third partition portion and at least part of the second partition portion on the substrate are located within the orthographic projection range of the extension portion on the substrate.

[0033] In one embodiment, along a direction away from the substrate, the light-emitting functional layer includes a first sublayer, a light-emitting layer, and a second sublayer;

[0034] Wherein, at least part of the first sub-layer is electrically isolated from the isolation structure by the insulating isolation structure;

[0035] Alternatively, the first sublayer, the light-emitting layer and the isolation structure are electrically isolated by the insulating isolation structure;

[0036] Alternatively, the first sublayer, the light-emitting layer, at least a portion of the second sublayer, and the isolation structure are electrically isolated by the insulating isolation structure;

[0037] Preferably, along the direction from the light emitting device to the isolation structure, there is a first gap between at least part of the first sublayer and the isolation structure, and the orthographic projection of the first gap on the substrate is within the orthographic projection range of the insulating partition structure on the substrate;

[0038] Alternatively, along the direction from the light-emitting device to the isolation structure, a second gap is provided between the first sublayer, the light-emitting layer and the isolation structure, and an orthographic projection of the second gap on the substrate is within the range of an orthographic projection of the insulating partition structure on the substrate;

[0039] Alternatively, along the direction from the light-emitting device toward the isolation structure, a third gap is provided between the first sublayer, the light-emitting layer, at least part of the second sublayer and the isolation structure, and an orthographic projection of the third gap on the substrate is within the range of an orthographic projection of the insulating partition structure on the substrate;

[0040] Preferably, the first sublayer comprises at least one of a hole injection layer, a hole transport layer, an electron blocking layer and an auxiliary light-emitting layer which are sequentially stacked in a direction away from the first electrode;

[0041] The second sublayer includes at least one of a hole blocking layer, an electron transport layer, and an electron injection layer which are sequentially stacked in a direction away from the first electrode.

[0042] In one embodiment, the light-emitting functional layer includes a first functional layer, a charge generation layer, and a second functional layer stacked in sequence in a direction away from the first electrode, the charge generation layer is used to connect the first functional layer and the second functional layer in series, and the first functional layer and the charge generation layer are electrically isolated from the isolation structure by the insulating isolation structure;

[0043] Preferably, the first functional layer includes a first hole transport layer, a first light-emitting layer and a first electron transport layer, and the second functional layer includes a second hole transport layer, a second light-emitting layer and a second electron transport layer.

[0044] In one embodiment, the insulating partition structure includes an annular structure surrounding the light-emitting functional layer.

[0045] In one embodiment, the display panel includes a pixel defining layer located on the side of the first electrode facing away from the substrate, the pixel defining layer defines a pixel opening corresponding to the isolation opening, the first electrode is at least partially exposed to the pixel opening, and the orthographic projection of the pixel opening on the substrate is located within the orthographic projection range of the isolation opening on the substrate; the isolation structure and the insulating partition structure are located on the side of the pixel defining layer away from the substrate.

[0046] Based on the same inventive concept, the present application also provides a display panel, which includes:

[0047] substrate;

[0048] An isolation structure, disposed on one side of the substrate, wherein the isolation structure defines an isolation opening;

[0049] An insulating partition structure is arranged on one side of the isolation structure close to the isolation opening to form an isolation opening;

[0050] The light emitting device comprises a first electrode, a light emitting functional layer and a second electrode which are stacked on the substrate and sequentially away from the substrate, wherein the light emitting functional layer and the second electrode are located in the isolation opening;

[0051] At least part of the light-emitting functional layer is located in the isolation opening, and part of the second electrode extends from the isolation opening to a side of the insulating isolation structure away from the substrate, and is electrically connected to the isolation structure.

[0052] In one embodiment, the orthographic projection of the partition opening on the substrate is located within the orthographic projection range of the isolation opening on the substrate.

[0053] In one embodiment, the orthographic projection of the insulating partition structure on the substrate at least partially overlaps with the orthographic projection of the isolation structure on the substrate;

[0054] Preferably, the orthographic projection of the insulating partition structure on the substrate does not overlap with the orthographic projection of at least part of the light-emitting functional layer on the substrate;

[0055] Preferably, the isolation structure comprises a support portion and a crown portion, the crown portion is located on a side of the support portion away from the substrate, and an orthographic projection of an end of the support portion close to the crown portion on the substrate is located within an orthographic projection of the crown portion on the substrate;

[0056] Preferably, the insulating partition structure is located on a side of the support portion close to the light-emitting device, and the orthographic projection of the insulating partition structure on the substrate does not overlap with the orthographic projection of the support portion on the substrate;

[0057] Preferably, an orthographic projection of the insulating partition structure on the substrate at least partially overlaps with an orthographic projection of the crown on the substrate.

[0058] In one embodiment, the display panel includes a pixel defining layer located on a side of the first electrode facing away from the substrate, the pixel defining layer defines a pixel opening corresponding to the isolation opening, the first electrode is at least partially exposed to the pixel opening, and an orthographic projection of the pixel opening on the substrate is within an orthographic projection range of the isolation opening on the substrate;

[0059] Preferably, the orthographic projection of the pixel opening on the substrate is located within the orthographic projection range of the partition opening on the substrate;

[0060] Preferably, the isolation structure and the insulating partition structure are located on a side of the pixel defining layer away from the substrate;

[0061] Preferably, along a direction perpendicular to the substrate, the insulating partition structure is located between the pixel defining layer and the second electrode.

[0062] In one embodiment, the second electrode includes an extension portion close to one side of the isolation structure, the orthographic projection of the light-emitting functional layer on the substrate is located within the range of the orthographic projection of the extension portion on the substrate, and the extension portion is at least partially in contact with the surface of the insulating partition structure on a side away from the substrate.

[0063] In one embodiment, along a direction away from the substrate, the light-emitting functional layer includes a first sublayer, a light-emitting layer, and a second sublayer;

[0064] Along the direction from the light emitting device to the isolation structure, a first gap is provided between at least part of the first sublayer and the isolation structure, and an orthographic projection of the first gap on the substrate is within the range of an orthographic projection of the insulating partition structure on the substrate;

[0065] Alternatively, along the direction from the light-emitting device to the isolation structure, a second gap is provided between the first sublayer, the light-emitting layer and the isolation structure, and an orthographic projection of the second gap on the substrate is within the range of an orthographic projection of the insulating partition structure on the substrate;

[0066] Alternatively, along the direction from the light-emitting device toward the isolation structure, a third gap is provided between the first sublayer, the light-emitting layer, at least part of the second sublayer and the isolation structure, and an orthographic projection of the third gap on the substrate is within the range of an orthographic projection of the insulating partition structure on the substrate;

[0067] Preferably, the first sublayer comprises at least one of a hole injection layer, a hole transport layer, an electron blocking layer and an auxiliary light-emitting layer which are sequentially stacked in a direction away from the first electrode;

[0068] The second sublayer includes at least one of a hole blocking layer, an electron transport layer, and an electron injection layer which are sequentially stacked in a direction away from the first electrode.

[0069] In one embodiment, the light-emitting functional layer includes a first functional layer, a charge generation layer, and a second functional layer stacked in sequence in a direction away from the first electrode, the charge generation layer is used to connect the first functional layer and the second functional layer in series, and the first functional layer and the charge generation layer are electrically isolated from the isolation structure by the insulating isolation structure;

[0070] Preferably, the first functional layer includes a first hole transport layer, a first light-emitting layer and a first electron transport layer, and the second functional layer includes a second hole transport layer, a second light-emitting layer and a second electron transport layer.

[0071] Based on the same inventive concept, the present application also provides a display device, which includes the above-mentioned display panel.

[0072] Compared with the prior art, the display panel provided in the present application electrically isolates at least part of the light-emitting functional layer from the isolation structure through an insulating partition structure to achieve an insulation effect, which can fundamentally solve the problem of lateral leakage, avoid the phenomenon of lateral crosstalk between adjacent sub-pixels caused by overlapping of part of the light-emitting functional layer and the isolation structure, and improve the display effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0073] In order to more clearly illustrate the technical solutions in the present application 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 application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0074] Figure 1 is a schematic diagram of a layer structure of a related display panel;

[0075] Figure 2 A schematic diagram of the layer structure of a display panel provided in an embodiment of the present application;

[0076] Figure 3 A schematic diagram of the layer structure of a display panel provided in another embodiment of the present application;

[0077] Figure 4 A schematic diagram of a partial structure of a display panel provided in another embodiment of the present application;

[0078] Figure 5 A schematic diagram of the layer structure of a display panel provided in another embodiment of the present application;

[0079] Figure 6 A schematic diagram of a partial structure of a display panel provided in another embodiment of the present application;

[0080] Figure 7 A schematic diagram of a partial structure of a display panel provided in another embodiment of the present application;

[0081] Figure 8 A schematic diagram of the layer structure of a display panel provided in another embodiment of the present application;

[0082] Fig. 9 A schematic diagram of the layer structure of a display panel provided in another embodiment of the present application;

[0083] Fig.10 A schematic diagram of the layer structure of a display panel provided in another embodiment of the present application.

[0084] Marking Description:

[0085] 100. Display panel;

[0086] 10. Substrate; 20. Isolation structure; 201. Isolation opening; 21. Support portion; 22. Crown; 30. Light-emitting device; 31. First electrode; 32. Light-emitting functional layer; 301. First sublayer; 302. Light-emitting layer; 303. Second sublayer; 321. First functional layer; 322. Charge generation layer; 323. Second functional layer; 33. Second electrode; 330. Extension portion; 40. Encapsulation layer; 50. Insulating partition structure; 501. Isolation opening; 51. First partition portion; 52. Second partition portion; 53. Third partition portion; 60. Pixel defining layer; 101. First gap; 102. Second gap; 103. Third gap. DETAILED DESCRIPTION

[0087] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0088] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be the usual meanings understood by people with ordinary skills in the field to which the present application belongs. The "first", "second" and similar words used in the embodiments of the present application do not represent 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 in front of 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.

[0089] Reference Figure 1 , is a related display panel 100, which includes a substrate 10, an isolation structure 20 and a light-emitting device 30, the isolation structure 20 and the light-emitting device 30 are located on the substrate 10, and the light-emitting device 30 is covered with an encapsulation layer 40. The display panel 100 is an organic light-emitting diode (OLED) display panel, and the light-emitting device 30 corresponding to each sub-pixel is mainly made of organic materials. In the preparation process, it is necessary to evaporate the organic material to form the light-emitting device 30, and the light-emitting device 30 corresponds to a sub-pixel. After research by the inventor, it was found that because the evaporation angle at the bottom of the isolation structure 20 cannot be completely perpendicular to the substrate 10, there is a phenomenon that the organic material overlaps the isolation structure 20, resulting in a lateral leakage problem, causing lateral crosstalk between adjacent sub-pixels, thereby affecting the display quality. It is difficult to fundamentally solve the problem of lateral leakage by adjusting the evaporation angle, the height of the isolation structure 20 or the width of the isolation structure 20. Among them, the direction from a sub-pixel to any sub-pixel around it can be called lateral.

[0090] Based on this, the present application provides a display panel and a display device to solve the above technical problems, as detailed in the following embodiments.

[0091] Reference Figure 2As shown, an embodiment of the present application provides a display panel, wherein the display panel 100 includes a substrate 10, an isolation structure 20, a light emitting device 30, and an insulating partition structure 50, wherein the isolation structure 20 is disposed on one side of the substrate 10, and the isolation structure 20 defines an isolation opening 201. The light emitting device 30 includes a first electrode 31, a light emitting functional layer 32, and a second electrode 33 which are stacked and disposed on the substrate 10 and sequentially away from the substrate 10, that is, the light emitting functional layer 32 is located between the first electrode 31 and the second electrode 33, and the first electrode 31 is located between the substrate 10 and the light emitting functional layer 32. The light emitting functional layer 32 and the second electrode 33 are located in the isolation opening 201. The insulating partition structure 50 is disposed on a side of the isolation structure 20 close to the light emitting device 30, so that at least part of the light emitting functional layer 32 is electrically isolated from the isolation structure 20.

[0092] The display panel 100 provided in the present application can electrically isolate the part of the light-emitting functional layer 32 that is prone to lateral leakage from the isolation structure 20 through the insulating partition structure 50, thereby achieving an insulation effect. This can fundamentally solve the problem of lateral leakage, avoid the phenomenon of lateral crosstalk between adjacent sub-pixels caused by overlapping of the light-emitting functional layer 32 and the isolation structure 20, and improve the display effect.

[0093] Specifically, the insulating partition structure 50 is made of non-conductive material. In a direction parallel to the substrate 10, the insulating partition structure 50 is located between a portion of the light-emitting functional layer 32 and the isolation structure 20. The direction parallel to the substrate 10 may correspond to a lateral direction.

[0094] Specifically, during the preparation of the display panel 100, a first electrode 31 is prepared on the substrate 10, and then an insulating partition structure 50 is prepared, and then an isolation structure 20 is prepared on the periphery of the insulating partition structure 50, and finally a light-emitting functional layer 32 and a second electrode 33 are prepared on the inner side of the insulating partition structure 50 and the isolation structure 20 to form a light-emitting device 30. The periphery of the insulating partition structure 50 refers to the side of the insulating partition structure 50 away from the corresponding light-emitting device 30; the inner side refers to the side of the insulating partition structure 50 and the isolation structure 20 close to the corresponding light-emitting device 30. The first electrode 31 is one of the anode and the cathode, and the second electrode 33 is the other of the anode and the cathode. In the embodiment of the present application, the first electrode 31 is preferably an anode, and the second electrode 33 is preferably a cathode.

[0095] Reference Figure 3 , Figure 5As shown, in some embodiments, the isolation structure 20 includes a support portion 21 and a crown portion 22, the crown portion 22 is located on the side of the support portion 21 away from the base plate 10, and the orthographic projection of one end of the support portion 21 close to the crown portion 22 on the base plate 10 is located within the orthographic projection of the crown portion 22 on the base plate 10. That is, the crown portion 22 partially extends out of the support portion 21 to form an eaves structure.

[0096] The insulating partition structure 50 is located on a side of the support portion 21 close to the light emitting device 30 , and the orthographic projection of the insulating partition structure 50 on the substrate 10 does not overlap with the orthographic projection of the support portion 21 on the substrate 10 .

[0097] Preferably, the orthographic projection of the insulating partition structure 50 on the base plate 10 at least partially overlaps with the orthographic projection of the crown portion 22 on the base plate 10 . That is, the insulating partition structure 50 is located below the eaves structure of the isolation structure 20 .

[0098] Preferably, the second electrode 33 is electrically connected to the support portion 21, and the orthographic projection of the insulating partition structure 50 on the substrate 10 is located within the orthographic projection of the second electrode 33 on the substrate 10. That is, the second electrode 33 overlaps the isolation structure 20 while also covering the insulating partition structure 50 and the light-emitting functional layer 32 inside it.

[0099] Among them, by setting the insulating partition structure 50 on the inner side of the support part 21, electrical isolation between the light-emitting functional layer 32 and the support part 21 can be achieved. At the same time, the insulating partition structure 50 is also set on the lower side of the second electrode 33, which does not affect the ohmic contact between the second electrode 33 and the support part 21, forming an overlap.

[0100] Specifically, the support portion 21 is an isolation column, and its material can be Al (aluminum), and the material of the crown portion 22 is Ti (titanium) or Mo (molybdenum). The isolation structure 20 includes a composite conductive layer formed by two different metals, wherein the preparation process of Ti, Al and Mo materials is relatively mature, and a high-quality multilayer structure can be prepared, and it can also be used in combination with materials such as silicon, silicon dioxide, silicon nitride, etc., so that the preparation of the isolation column can be combined with the manufacturing process of other devices to improve production efficiency and reduce costs.

[0101] Reference Figure 3 , Figure 5 As shown, in one embodiment, the second electrode 33 is located on the side of the light-emitting functional layer 32 and the insulating partition structure 50 away from the substrate 10, and at least a portion of the second electrode 33 extends to the side wall of the isolation structure 20 close to the light-emitting device 30, the second electrode 33 includes an extension portion 330 close to the side of the isolation structure 20, the orthographic projection of the light-emitting functional layer 32 on the substrate 10 is located within the orthographic projection range of the extension portion 330 on the substrate 10, and the extension portion 330 is at least partially in contact with the surface of the side of the insulating partition structure 50 away from the substrate 10.

[0102] The extension portion 330 on the second electrode 33 is in partial or full contact with the surface of the insulating partition structure 50 on the side away from the substrate 10 , and the second electrode 33 cooperates with the insulating partition structure 50 to isolate the light-emitting functional layer 32 on the inner side of the isolation structure 20 .

[0103] Preferably, along the direction perpendicular to the substrate 10, the height H1 of the isolation structure 20 is 2 to 200 times the height H2 of the insulating partition structure 50. For example, the height H1 of the isolation structure 20 may be 2, 10, 50, 100, 150, 200, etc. times the height H2 of the insulating partition structure 50.

[0104] Preferably, the height H2 of the insulating partition structure 50 is 10-1000 nm along the direction perpendicular to the substrate 10. For example, the height H2 of the insulating partition structure 50 may be 10 nm, 50 nm, 100 nm, 500 nm, 700 nm, 1000 nm, etc. The height of the insulating partition structure 50 or the isolation structure 20 may be the height of the highest point of the insulating partition structure 50 or the isolation structure 20 farthest from the substrate 10, or may be the average height of the insulating partition structure 50.

[0105] Reference Figure 3 , Figure 4 As shown, in one embodiment, the insulating partition structure 50 includes a first partition portion 51 and a second partition portion 52, and the second partition portion 52 is located between the first partition portion 51 and the isolation structure 20; the distance between the surface of the second partition portion 52 away from the substrate 10 and the substrate 10 is greater than the distance between the surface of the first partition portion 51 away from the substrate 10 and the substrate 10. At least part of the extension portion 330 contacts the surface of the second partition portion 52 away from the substrate 10.

[0106] Specifically, the insulating partition structure 50 is a stepped structure. With the plane where the substrate 10 is located as a reference, the second partition portion 52 may correspond to a higher step, and the first partition portion 51 may correspond to a lower step. The extension portion 330 may contact the surface of the higher second partition portion 52 to form a partition for the light-emitting functional layer 32.

[0107] Preferably, the orthographic projection of the light-emitting functional layer 32 on the substrate 10 does not overlap with the orthographic projection of the second partition portion 52 on the substrate 10. That is, the outer edge of the light-emitting functional layer 32 is located inside the second partition portion 52, and the second partition portion 52 fills the gap between the outer edge of the light-emitting functional layer 32 and the isolation structure 20.

[0108] Alternatively, the orthographic projection of the light-emitting functional layer 32 on the substrate 10 does not overlap with the orthographic projections of the second partition portion 52 and the first partition portion 51 on the substrate 10. That is, the outer edge of the light-emitting functional layer 32 is located inside the insulating partition structure 50, and the insulating partition structure 50 fills the gap between the outer edge of the light-emitting functional layer 32 and the isolation structure 20.

[0109] Reference Figure 5 , Figure 6 As shown, in one embodiment, the insulating partition structure 50 further includes a third partition portion 53. Along the direction from the light emitting device 30 to the isolation structure 20, the first partition portion 51, the second partition portion 52 and the third partition portion 53 are sequentially arranged, and the second partition portion 52 is located between the first partition portion 51 and the third partition portion 53. The distance between the surface of the third partition portion 53 away from the substrate 10 and the substrate 10 is smaller than the distance between the surface of the second partition portion 52 away from the substrate 10 and the substrate 10.

[0110] In this embodiment, the insulating partition structure 50 is a convex stepped structure. The third partition portion 53 is lower than the second partition portion 52. In this way, when the second electrode 33 is formed by vapor deposition, an extension portion 330 will be formed in the step space formed by the third partition portion 53 and the second partition portion 52. The extension portion 330 is thicker than the main part of the second electrode 33, which can improve the reliability of the signal overlap between the second electrode 33 and the isolation structure 20.

[0111] Preferably, the extension portion 330 is located on the side of the third partition portion 53 away from the substrate 10, and the extension portion 330 contacts the surface of the third partition portion 53 away from the substrate 10. The orthographic projection of the third partition portion 53 on the substrate 10 is located within the orthographic projection range of the extension portion 330 on the substrate 10.

[0112] In another embodiment, the extension portion 330 is located on a side of the third partition portion 53 and the second partition portion 52 away from the substrate 10 , and the orthographic projections of the third partition portion 53 and the second partition portion 52 on the substrate 10 are located within the orthographic projection range of the extension portion 330 on the substrate 10 .

[0113] Reference Figure 7 , Figure 8As shown, in another embodiment, the insulating partition structure 50 further includes a third partition portion 53. The first partition portion 51, the second partition portion 52 and the third partition portion 53 are sequentially arranged along the direction from the light emitting device 30 to the isolation structure 20. The distance between the surface of the third partition portion 53 away from the substrate 10 and the substrate 10 is greater than the distance between the surface of the second partition portion 52 away from the substrate 10 and the substrate 10. The extension portion 330 contacts the surface of the third partition portion 53 away from the substrate 10. With reference to the plane where the substrate 10 is located, the first partition portion 51, the second partition portion 52 and the third partition portion 53 form a multi-layer stepped structure that rises sequentially, and the third partition portion 53 can further enhance the partition effect of the insulating partition structure 50 on the light emitting functional layer 32.

[0114] Preferably, the extension portion 330 is located on the side of the third partition portion 53 away from the substrate 10, and the extension portion 330 contacts the surface of the third partition portion 53 away from the substrate 10. The orthographic projection of the third partition portion 53 on the substrate 10 is located within the orthographic projection range of the extension portion 330 on the substrate 10.

[0115] In another embodiment, the extension portion 330 is located on a side of the third partition portion 53 and the second partition portion 52 away from the substrate 10 , and the orthographic projections of the third partition portion 53 and the second partition portion 52 on the substrate 10 are located within the orthographic projection range of the extension portion 330 on the substrate 10 .

[0116] Reference Fig. 9 As shown, in one embodiment, along a direction away from the substrate 10 , the light-emitting functional layer 32 includes a first sub-layer 301 , a light-emitting layer 302 and a second sub-layer 303 .

[0117] Among them, at least part of the first sublayer 301 is electrically isolated from the isolation structure 20 by the insulating partition structure 50. In this case, part of the film layer of the first sublayer 301 can be blocked by the insulating partition structure 50. The remaining film layer of the first sublayer 301, the light-emitting layer 302, and the second sublayer 303 are not blocked by the insulating partition structure 50.

[0118] In addition, a portion of the film layer of the first sub-layer 301 may also be blocked by the pixel definition layer.

[0119] Alternatively, the first sublayer 301, the light emitting layer 302 and the isolation structure 20 are electrically isolated by the insulating isolation structure 50. In this case, the first sublayer 301 and the light emitting layer 302 may be blocked by the insulating isolation structure 50, and the second sublayer 303 is not blocked by the insulating isolation structure 50.

[0120] Alternatively, the first sublayer 301, the light-emitting layer 302, at least a portion of the second sublayer 303, and the isolation structure 20 are electrically isolated by the insulating partition structure 50. In this case, the first sublayer 301, the light-emitting layer 302, and a portion of the second sublayer 303 may be blocked by the insulating partition structure 50, and the remaining portion of the second sublayer 303 is not blocked by the insulating partition structure 50.

[0121] Preferably, along the direction from the light emitting device 30 toward the isolation structure 20 , a first gap 101 is provided between at least part of the first sublayer 301 and the isolation structure 20 , and the orthographic projection of the first gap 101 on the substrate 10 is within the orthographic projection range of the insulating partition structure 50 on the substrate 10 .

[0122] Alternatively, along the direction of the light-emitting device 30 toward the isolation structure 20 , there is a second gap 102 between the first sublayer 301 , the light-emitting layer 302 and the isolation structure 20 , and the orthographic projection of the second gap 102 on the substrate 10 is within the orthographic projection range of the insulating partition structure 50 on the substrate 10 .

[0123] Alternatively, along the direction of the light-emitting device 30 toward the isolation structure 20, there is a third gap 103 between the first sublayer 301, the light-emitting layer 302, at least part of the second sublayer 303 and the isolation structure 20, and the orthographic projection of the third gap 103 on the substrate 10 is located within the range of the orthographic projection of the insulating partition structure 50 on the substrate 10.

[0124] Preferably, the first sublayer 301 includes at least one of a hole injection layer, a hole transport layer, an electron blocking layer and an auxiliary light-emitting layer stacked in sequence in a direction away from the first electrode 31. The second sublayer 303 includes at least one of a hole blocking layer, an electron transport layer and an electron injection layer stacked in sequence in a direction away from the first electrode 31.

[0125] For example, along a direction away from the substrate 10 , the insulating partition structure 50 may partition the hole injection layer, or partition to the hole transport layer, or partition to the electron transport layer.

[0126] Among them, one light-emitting device 30 corresponds to one light-emitting unit. The light-emitting unit includes the following layer structures: a hole injection layer (HIL), which can promote the efficient injection of holes from the anode to the organic layer. A hole transport layer (HTL), which can be used to transport holes to the light-emitting layer. An auxiliary light-emitting layer, sometimes also called an exciton limiting layer or an electron blocking layer, can enhance the luminescence effect or limit the position of excitons. An emission layer (EML), which is used to allow electrons and holes to recombine to generate light. A hole blocking layer (HBL), which is used to prevent holes from entering the electron transport layer. An electron transport layer (ETL), which is used to transport electrons to the light-emitting layer. An electron injection layer (EIL), which can promote the injection of electrons from the cathode to the electron transport layer. The lowest point of the insulating partition structure 50 is at least isolated to the hole injection layer or the hole transport layer. Adjacent light emitting devices 30 are disconnected from each other by the insulating partition structure 50 and the isolation structure 20 , thereby preventing carriers (holes, electrons) from forming crosstalk between adjacent light emitting devices 30 .

[0127] Reference Fig.10 As shown, in another embodiment, the light-emitting functional layer 32 includes a first functional layer 321, a charge generation layer 322, and a second functional layer 323 which are sequentially stacked in a direction away from the first electrode 31. Corresponding to the same light-emitting device 30, the charge generation layer 322 is used to connect the first functional layer 321 and the second functional layer 323 in series, and the first functional layer 321 and the charge generation layer 322 are electrically isolated from the isolation structure 20 by the insulating isolation structure 50. Among them, one light-emitting device 30 is formed by two light-emitting units connected in series, and the charge generation layer 322 can be used as both the cathode of the first functional layer 321 and the anode of the second functional layer 323 to realize the connection of the first functional layer 321 and the second functional layer 323 in series.

[0128] Preferably, the first functional layer 321 includes a first hole transport layer, a first light emitting layer and a first electron transport layer, and the second functional layer 323 includes a second hole transport layer, a second light emitting layer and a second electron transport layer.

[0129] In one embodiment, the insulating partition structure 50 includes an annular structure surrounding the light-emitting functional layer 32. The insulating partition structure 50 is closed at the periphery of each sub-pixel to form a closed annular structure, which can fully isolate the light-emitting functional layer 32, so as to isolate the lateral current path between adjacent light-emitting devices 30 to the greatest extent, and also help the independent packaging structure covering the light-emitting device 30 to achieve closure and enhance the packaging effect. Further, the isolation structure 20 is an annular structure surrounding the insulating partition structure 50.

[0130] Reference Figure 2 As shown, in one embodiment, the display panel 100 further includes a pixel defining layer 60, which is located on the side of the first electrode 31 away from the substrate 10, and the pixel defining layer 60 defines a pixel opening corresponding to the isolation opening 201, and the first electrode 31 is at least partially exposed to the pixel opening. The orthographic projection of the pixel opening on the substrate 10 is located within the orthographic projection range of the isolation opening 201 on the substrate 10. Specifically, a portion of the first electrode 31 is exposed to the pixel opening, and the remaining edge portion is covered by the pixel defining layer 60. The pixel defining layer 60 is made of inorganic material, and the isolation structure 20 and the insulating partition structure 50 are located on the side of the pixel defining layer 60 away from the substrate 10, which can reduce the lateral crosstalk caused by the overlap of organic materials.

[0131] Optionally, the pixel defining layer 60 may block a portion of the light emitting functional layer 32 so that the light emitting functional layer 32 cannot extend to the isolation structure 20 or the insulating partition structure 50 .

[0132] Furthermore, the substrate 10 includes a substrate and a driving circuit layer disposed on the substrate.

[0133] Reference Figure 2 As shown, another embodiment of the present application provides a display panel, the display panel 100 includes a substrate 10, an isolation structure 20, a light-emitting device 30 and an insulating partition structure 50, wherein the isolation structure 20 is arranged on one side of the substrate 10, and the isolation structure 20 defines an isolation opening 201. The insulating partition structure 50 is arranged on one side of the isolation structure 20 close to the isolation opening 201 to form the isolation opening 501. The light-emitting device 30 includes a first electrode 31, a light-emitting functional layer 32 and a second electrode 33 stacked on the substrate 10 and sequentially away from the substrate 10.

[0134] At least part of the light-emitting functional layer 32 is located in the isolation opening 501 , part of the second electrode 33 extends from the isolation opening 501 to the side of the insulating isolation structure 50 away from the substrate 10 , and the second electrode 33 is electrically connected to the isolation structure 20 .

[0135] The display panel 100 provided in the present application forms an isolation opening 501 through an insulating isolation structure 50, which can electrically isolate the part of the light-emitting functional layer 32 that is prone to lateral leakage from the isolation structure 20, thereby achieving an insulation effect. This can fundamentally solve the problem of lateral leakage, avoid the phenomenon of lateral crosstalk between adjacent sub-pixels caused by overlapping of the light-emitting functional layer 32 and the isolation structure 20, and improve the display effect.

[0136] Specifically, the insulating partition structure 50 is made of non-conductive material.

[0137] Continue to refer to Figure 2 As shown, in one embodiment, the orthographic projection of the partition opening 501 on the substrate 10 is located within the orthographic projection range of the isolation opening 201 on the substrate 10 .

[0138] Preferably, the insulating partition structure 50 includes a first annular structure, the isolation structure 20 is a second annular structure, and the first annular structure is located inside the second annular structure.

[0139] Among them, the insulating partition structure 50 is closed at the periphery of each sub-pixel to form a closed ring structure, which can completely isolate the light-emitting functional layer 32 so as to isolate the lateral current path between adjacent light-emitting devices 30 to the greatest extent, and also help the independent packaging structure covering the light-emitting device 30 to achieve closure and enhance the packaging effect.

[0140] Among them, the isolation opening 501 is located on the inner side of the isolation opening 201. When preparing the light-emitting device 30, at least part of the light-emitting functional layer 32 is located in the isolation opening 501. The second electrode 33 can cover the isolation opening 201, thereby covering the insulating isolation structure 50 and its isolation opening 501, which can ensure that the second electrode 33 is electrically connected to the isolation structure 20 while part of the light-emitting functional layer 32 is electrically isolated from the isolation structure 20.

[0141] Reference Figure 2 , Figure 3 As shown, in one embodiment, the orthographic projection of the insulating partition structure 50 on the substrate 10 at least partially overlaps with the orthographic projection of the isolation structure 20 on the substrate 10 .

[0142] Preferably, the orthographic projection of the insulating partition structure 50 on the substrate 10 does not overlap with the orthographic projection of at least part of the light-emitting functional layer 32 on the substrate 10. That is, in the lateral direction, the insulating partition structure 50 forms a partition between at least part of the light-emitting functional layer 32 and the isolation structure 20.

[0143] Preferably, the isolation structure 20 includes a support portion 21 and a crown portion 22 , the crown portion 22 is located on a side of the support portion 21 away from the substrate 10 , and the orthographic projection of one end of the support portion 21 close to the crown portion 22 on the substrate 10 is located within the orthographic projection of the crown portion 22 on the substrate 10 .

[0144] Preferably, the insulating partition structure 50 is located on the side of the support portion 21 close to the light emitting device 30, and the orthographic projection of the insulating partition structure 50 on the substrate 10 does not overlap with the orthographic projection of the support portion 21 on the substrate 10. The orthographic projection of the insulating partition structure 50 on the substrate 10 at least partially overlaps with the orthographic projection of the crown portion 22 on the substrate 10. That is, the insulating partition structure 50 is located below the eaves structure of the isolation structure 20, and can also extend out of the eaves structure and be arranged close to the light emitting device 30.

[0145] Reference Figure 2 , Figure 3 As shown, in one embodiment, the display panel 100 includes a pixel defining layer 60 located on the side of the first electrode 31 facing away from the substrate 10, the pixel defining layer 60 defines a pixel opening corresponding to the isolation opening 201, the first electrode 31 is at least partially exposed to the pixel opening, and the orthographic projection of the pixel opening on the substrate 10 is located within the orthographic projection range of the isolation opening 201 on the substrate 10.

[0146] Preferably, the orthographic projection of the pixel opening on the substrate 10 is located within the orthographic projection range of the partition opening 501 on the substrate 10 .

[0147] Preferably, the isolation structure 20 and the insulating partition structure 50 are located on a side of the pixel defining layer 60 away from the substrate 10 .

[0148] Preferably, along a direction perpendicular to the substrate 10 , the insulating partition structure 50 is located between the pixel defining layer 60 and the second electrode 33 .

[0149] Specifically, a portion of the first electrode 31 is exposed to the pixel opening, and the remaining edge portion is covered by the pixel defining layer 60. The pixel defining layer 60 is made of an inorganic material. Optionally, the pixel defining layer 60 can block a portion of the light-emitting functional layer 32 so that it cannot extend to the isolation structure 20, thereby reducing the lateral crosstalk caused by the overlap of organic materials.

[0150] Reference Figure 3 As shown, in one embodiment, the second electrode 33 includes an extension portion 330 close to one side of the isolation structure 20, the orthographic projection of the light-emitting functional layer 32 on the substrate 10 is located within the orthographic projection range of the extension portion 330 on the substrate 10, and the extension portion 330 is at least partially in contact with the surface of the insulating partition structure 50 on the side away from the substrate 10.

[0151] The extension portion 330 on the second electrode 33 is in partial or full contact with the surface of the insulating partition structure 50 on the side away from the substrate 10 , and the second electrode 33 cooperates with the insulating partition structure 50 to isolate the light-emitting functional layer 32 on the inner side of the isolation structure 20 .

[0152] Reference Fig. 9 As shown, in one embodiment, along a direction away from the substrate 10 , the light-emitting functional layer 32 includes a first sub-layer 301 , a light-emitting layer 302 and a second sub-layer 303 .

[0153] In which, along the direction from the light emitting device 30 to the isolation structure 20, there is a first gap 101 between at least part of the first sublayer 301 and the isolation structure 20, and the orthographic projection of the first gap 101 on the substrate 10 is located within the orthographic projection range of the insulating partition structure 50 on the substrate 10. In other words, at least part of the first sublayer 301 is electrically isolated from the isolation structure 20 by the insulating partition structure 50. In this case, a part of the film layer of the first sublayer 301 may be blocked by the insulating partition structure 50. In addition, a part of the film layer of the first sublayer 301 may also be blocked by the pixel defining layer 60. The remaining film layers of the first sublayer 301, the light emitting layer 302, and the second sublayer 303 may not be blocked by the insulating partition structure 50.

[0154] Alternatively, along the direction from the light emitting device 30 to the isolation structure 20, there is a second gap 102 between the first sublayer 301, the light emitting layer 302 and the isolation structure 20, and the orthographic projection of the second gap 102 on the substrate 10 is located within the orthographic projection range of the insulating partition structure 50 on the substrate 10. In other words, the first sublayer 301, the light emitting layer 302 and the isolation structure 20 are electrically isolated by the insulating partition structure 50. In this case, the first sublayer 301 and the light emitting layer 302 can be blocked by the insulating partition structure 50, and the second sublayer 303 is not blocked by the insulating partition structure 50.

[0155] Alternatively, along the direction from the light emitting device 30 toward the isolation structure 20, there is a third gap 103 between the first sublayer 301, the light emitting layer 302, at least part of the second sublayer 303 and the isolation structure 20, and the orthographic projection of the third gap 103 on the substrate 10 is located within the orthographic projection range of the insulating partition structure 50 on the substrate 10. In other words, the first sublayer 301, the light emitting layer 302, at least part of the second sublayer 303 and the isolation structure 20 are electrically isolated by the insulating partition structure 50. In this case, part of the film layers of the first sublayer 301, the light emitting layer 302 and the second sublayer 303 can be blocked by the insulating partition structure 50, and the remaining part of the film layers of the second sublayer 303 are not blocked by the insulating partition structure 50.

[0156] Preferably, the first sublayer 301 includes at least one of a hole injection layer, a hole transport layer, an electron blocking layer and an auxiliary light-emitting layer stacked in sequence in a direction away from the first electrode 31. The second sublayer 303 includes at least one of a hole blocking layer, an electron transport layer and an electron injection layer stacked in sequence in a direction away from the first electrode 31.

[0157] For example, along a direction away from the substrate 10 , the insulating partition structure 50 may partition the hole injection layer, or partition to the hole transport layer, or partition to the electron transport layer.

[0158] Reference Fig.10 As shown, in another embodiment, the light-emitting functional layer 32 includes a first functional layer 321, a charge generation layer 322, and a second functional layer 323 which are sequentially stacked in a direction away from the first electrode 31. Corresponding to the same light-emitting device 30, the charge generation layer 322 is used to connect the first functional layer 321 and the second functional layer 323 in series, and the first functional layer 321 and the charge generation layer 322 are electrically isolated from the isolation structure 20 by the insulating isolation structure 50. Among them, one light-emitting device 30 is formed by two light-emitting units connected in series, and the charge generation layer 322 can be used as both the cathode of the first functional layer 321 and the anode of the second functional layer 323 to realize the connection of the first functional layer 321 and the second functional layer 323 in series.

[0159] Preferably, the first functional layer 321 includes a first hole transport layer, a first light emitting layer and a first electron transport layer, and the second functional layer 323 includes a second hole transport layer, a second light emitting layer and a second electron transport layer.

[0160] Another embodiment of the present application provides a display device, which includes the display panel 100 in the above embodiment. The display device can be located in a smart device (such as a mobile phone, VR device, computer, TV, car display, etc.).

[0161] The display device provided in the present application has a display panel 100 that electrically isolates the light-emitting functional layer 32 from the isolation structure 20 through an insulating isolation structure 50 to achieve an insulation effect, which can fundamentally solve the problem of lateral leakage and avoid the phenomenon of lateral crosstalk between adjacent sub-pixels caused by overlapping of the light-emitting functional layer 32 and the isolation structure 20, thereby improving the display effect.

[0162] The above-mentioned isolation structure is recorded in patents CN118251982A, 202410864269.8, PCT / CN2024 / 098407, PCT / CN2024 / 102783, PCT / CN2024 / 098217, PCT / CN2024 / 099419, PCT / CN2024 / 099072, CN117979755A, CN117998900A, CN117062489A, CN117580403A, CN116583155A, CN116669477A, ​​CN117396039A, CN116669480A, CN116600606A, CN117500332A, please refer to them.

[0163] Although the present application has been described in conjunction with specific embodiments thereof, many alternatives, modifications and variations of these embodiments will be apparent to those skilled in the art in light of the foregoing description.

[0164] It should be noted that the above is a description of an embodiment of the present application. 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.

[0165] The embodiments of the present application 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 application should be included in the scope of protection of the present application.

Claims

1. A display panel, characterized in that: include: substrate; An isolation structure, disposed on one side of the substrate, wherein the isolation structure defines an isolation opening; A light emitting device, the light emitting device comprising a first electrode, a light emitting functional layer, and a second electrode stacked on the substrate and sequentially away from the substrate, the light emitting functional layer and the second electrode being located in the isolation opening; The insulating isolation structure is arranged on a side of the isolation structure close to the light-emitting device, so as to electrically isolate at least a part of the light-emitting functional layer from the isolation structure.

2. The display panel according to claim 1, characterized in that: The isolation structure comprises a support portion and a crown portion, wherein the crown portion is located on a side of the support portion away from the substrate, and an orthographic projection of an end of the support portion close to the crown portion on the substrate is located within an orthographic projection of the crown portion on the substrate; The insulating partition structure is located on a side of the support portion close to the light-emitting device, and the orthographic projection of the insulating partition structure on the substrate does not overlap with the orthographic projection of the support portion on the substrate; Preferably, the orthographic projection of the insulating partition structure on the substrate at least partially overlaps with the orthographic projection of the crown on the substrate; Preferably, the second electrode is electrically connected to the support portion, and the orthographic projection of the insulating partition structure on the substrate is located within the orthographic projection of the second electrode on the substrate; Preferably, the material of the support portion and the material of the crown portion are two different metals; Preferably, the support portion is made of Al, and the crown portion is made of Ti or Mo.

3. The display panel according to claim 1, characterized in that: The second electrode is located on a side of the light-emitting functional layer and the insulating partition structure away from the substrate, and at least partially extends to a side wall of the isolation structure close to the light-emitting device, the second electrode includes an extension portion close to a side of the isolation structure, the orthographic projection of the light-emitting functional layer on the substrate is located within the range of the orthographic projection of the extension portion on the substrate, and the extension portion is in at least partial contact with a surface of the insulating partition structure on a side away from the substrate; Preferably, along a direction perpendicular to the substrate, the height of the isolation structure is 2 to 200 times the height of the insulating partition structure; Preferably, along a direction perpendicular to the substrate, a height of the insulating partition structure is 10-1000 nm.

4. The display panel according to claim 3, characterized in that: The insulating partition structure comprises a first partition portion and a second partition portion, wherein the second partition portion is located between the first partition portion and the isolation structure; a distance between a surface of the second partition portion away from the substrate and the substrate is greater than a distance between a surface of the first partition portion away from the substrate and the substrate; Wherein, at least a portion of the extension portion is in contact with a surface of the second partition portion on a side away from the substrate; Preferably, the orthographic projection of the light-emitting functional layer on the substrate and the orthographic projection of the second partition portion on the substrate do not overlap each other; Alternatively, the orthographic projection of the light-emitting functional layer on the substrate does not overlap with the orthographic projections of the second partition portion and the first partition portion on the substrate.

5. The display panel according to claim 4, characterized in that: The insulating partition structure further includes a third partition portion, and along the direction from the light emitting device to the isolation structure, the first partition portion, the second partition portion and the third partition portion are arranged in sequence; Wherein, the distance between the surface of the third partition portion away from the substrate and the substrate is smaller than the distance between the surface of the second partition portion away from the substrate and the substrate; Preferably, the extension portion is located on a side of the third partition portion away from the substrate, and the extension portion is in contact with a surface of the third partition portion away from the substrate; The orthographic projection of the third partition portion on the substrate is located within the orthographic projection range of the extension portion on the substrate; Preferably, the extension portion is located on a side of the third partition portion and the second partition portion away from the substrate, and the orthographic projections of the third partition portion and the second partition portion on the substrate are located within the orthographic projection range of the extension portion on the substrate.

6. The display panel according to claim 4, characterized in that: The insulating partition structure further includes a third partition portion, and along the direction from the light emitting device to the isolation structure, the first partition portion, the second partition portion and the third partition portion are arranged in sequence; Wherein, the distance between the surface of the third partition portion away from the substrate and the substrate is greater than the distance between the surface of the second partition portion away from the substrate and the substrate; Preferably, the extension portion is located on a side of the third partition portion away from the substrate, and the extension portion is in contact with a surface of the third partition portion away from the substrate; The orthographic projection of the third partition portion on the substrate is located within the orthographic projection range of the extension portion on the substrate; Preferably, the extension portion is located on a side of the third partition portion and the second partition portion away from the substrate, and the orthographic projections of the third partition portion and at least part of the second partition portion on the substrate are located within the orthographic projection range of the extension portion on the substrate.

7. The display panel according to claim 1, characterized in that: Along the direction away from the substrate, the light-emitting functional layer includes a first sublayer, a light-emitting layer, and a second sublayer; Wherein, at least part of the first sub-layer is insulated and isolated from the isolation structure by the insulating isolation structure; Alternatively, the first sublayer, the light-emitting layer and the isolation structure are insulated and isolated by the insulating isolation structure; Alternatively, the first sublayer, the light-emitting layer, at least a portion of the second sublayer, and the isolation structure are electrically isolated by the insulating isolation structure; Preferably, along the direction from the light emitting device to the isolation structure, there is a first gap between at least part of the first sublayer and the isolation structure, and the orthographic projection of the first gap on the substrate is within the orthographic projection range of the insulating partition structure on the substrate; Alternatively, along the direction from the light-emitting device to the isolation structure, a second gap is provided between the first sublayer, the light-emitting layer and the isolation structure, and an orthographic projection of the second gap on the substrate is within the range of an orthographic projection of the insulating partition structure on the substrate; Alternatively, along the direction from the light-emitting device toward the isolation structure, a third gap is provided between the first sublayer, the light-emitting layer, at least part of the second sublayer and the isolation structure, and an orthographic projection of the third gap on the substrate is within the range of an orthographic projection of the insulating partition structure on the substrate; Preferably, the first sublayer comprises at least one of a hole injection layer, a hole transport layer, an electron blocking layer and an auxiliary light-emitting layer which are sequentially stacked in a direction away from the first electrode; The second sublayer includes at least one of a hole blocking layer, an electron transport layer, and an electron injection layer which are sequentially stacked in a direction away from the first electrode.

8. The display panel according to claim 1, characterized in that: The light-emitting functional layer comprises a first functional layer, a charge generating layer, and a second functional layer which are sequentially stacked in a direction away from the first electrode, the charge generating layer is used to connect the first functional layer and the second functional layer in series, and the first functional layer and the charge generating layer are electrically isolated from the isolation structure by the insulating isolation structure; Preferably, the first functional layer includes a first hole transport layer, a first light-emitting layer and a first electron transport layer, and the second functional layer includes a second hole transport layer, a second light-emitting layer and a second electron transport layer.

9. The display panel according to claim 1, characterized in that: The insulating partition structure includes a ring structure surrounding the light-emitting functional layer.

10. The display panel according to claim 1, characterized in that: The display panel includes a pixel defining layer located on the side of the first electrode facing away from the substrate, the pixel defining layer defines a pixel opening corresponding to the isolation opening, the first electrode is at least partially exposed to the pixel opening, and the orthographic projection of the pixel opening on the substrate is located within the orthographic projection range of the isolation opening on the substrate; the isolation structure and the insulating partition structure are located on the side of the pixel defining layer away from the substrate.

11. A display panel, characterized in that: include: substrate; An isolation structure, disposed on one side of the substrate, wherein the isolation structure defines an isolation opening; An insulating partition structure is arranged on one side of the isolation structure close to the isolation opening to form an isolation opening; The light emitting device comprises a first electrode, a light emitting functional layer and a second electrode which are stacked on the substrate and sequentially away from the substrate, wherein the light emitting functional layer and the second electrode are located in the isolation opening; At least part of the light-emitting functional layer is located in the isolation opening, and part of the second electrode extends from the isolation opening to a side of the insulating isolation structure away from the substrate, and is electrically connected to the isolation structure.

12. The display panel according to claim 11, characterized in that: The orthographic projection of the partition opening on the substrate is located within the orthographic projection range of the isolation opening on the substrate.

13. The display panel according to claim 11, characterized in that: The orthographic projection of the insulating partition structure on the substrate at least partially overlaps with the orthographic projection of the isolation structure on the substrate; Preferably, the orthographic projection of the insulating partition structure on the substrate does not overlap with the orthographic projection of at least part of the light-emitting functional layer on the substrate; Preferably, the isolation structure comprises a support portion and a crown portion, the crown portion is located on a side of the support portion away from the substrate, and an orthographic projection of an end of the support portion close to the crown portion on the substrate is located within an orthographic projection of the crown portion on the substrate; Preferably, the insulating partition structure is located on a side of the support portion close to the light-emitting device, and the orthographic projection of the insulating partition structure on the substrate does not overlap with the orthographic projection of the support portion on the substrate; Preferably, an orthographic projection of the insulating partition structure on the substrate at least partially overlaps with an orthographic projection of the crown on the substrate.

14. The display panel according to claim 11, characterized in that: The display panel comprises a pixel defining layer located on a side of the first electrode facing away from the substrate, the pixel defining layer defines a pixel opening corresponding to the isolation opening, the first electrode is at least partially exposed to the pixel opening, and an orthographic projection of the pixel opening on the substrate is within the orthographic projection range of the isolation opening on the substrate; Preferably, the orthographic projection of the pixel opening on the substrate is located within the orthographic projection range of the partition opening on the substrate; Preferably, the isolation structure and the insulating partition structure are located on a side of the pixel defining layer away from the substrate; Preferably, along a direction perpendicular to the substrate, the insulating partition structure is located between the pixel defining layer and the second electrode.

15. The display panel according to claim 11, characterized in that: The second electrode includes an extension portion close to one side of the isolation structure, the orthographic projection of the light-emitting functional layer on the substrate is located within the range of the orthographic projection of the extension portion on the substrate, and the extension portion is at least partially in contact with the surface of the insulating partition structure away from the substrate.

16. The display panel according to claim 11, characterized in that: Along the direction away from the substrate, the light-emitting functional layer includes a first sublayer, a light-emitting layer, and a second sublayer; Along the direction from the light emitting device to the isolation structure, a first gap is provided between at least part of the first sublayer and the isolation structure, and an orthographic projection of the first gap on the substrate is within the range of an orthographic projection of the insulating partition structure on the substrate; Alternatively, along the direction from the light-emitting device to the isolation structure, a second gap is provided between the first sublayer, the light-emitting layer and the isolation structure, and an orthographic projection of the second gap on the substrate is within the range of an orthographic projection of the insulating partition structure on the substrate; Alternatively, along the direction from the light-emitting device toward the isolation structure, a third gap is provided between the first sublayer, the light-emitting layer, at least part of the second sublayer and the isolation structure, and an orthographic projection of the third gap on the substrate is within the range of an orthographic projection of the insulating partition structure on the substrate; Preferably, the first sublayer comprises at least one of a hole injection layer, a hole transport layer, an electron blocking layer and an auxiliary light-emitting layer which are sequentially stacked in a direction away from the first electrode; The second sublayer includes at least one of a hole blocking layer, an electron transport layer, and an electron injection layer which are sequentially stacked in a direction away from the first electrode.

17. The display panel according to claim 11, characterized in that: The light-emitting functional layer comprises a first functional layer, a charge generating layer, and a second functional layer which are sequentially stacked in a direction away from the first electrode, the charge generating layer is used to connect the first functional layer and the second functional layer in series, and the first functional layer and the charge generating layer are electrically isolated from the isolation structure by the insulating isolation structure; Preferably, the first functional layer includes a first hole transport layer, a first light-emitting layer and a first electron transport layer, and the second functional layer includes a second hole transport layer, a second light-emitting layer and a second electron transport layer.

18. A display device, characterized in that: Comprising a display panel as described in any one of claims 1-17.

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