Display panel and display device

Abstract

The invention provides a display panel, a display device and a manufacturing method of the display panel. The display panel comprises an array substrate comprising a plurality of driving circuits; the light emitting units comprise first sub-pixels and second sub-pixels, and the first sub-pixels and the second sub-pixels are sequentially arranged on the array substrate in a stacked mode in the direction away from the array substrate; the peripheries of at least part of the light emitting units are provided with the partition structures, and at least one of the first sub-pixels and the second sub-pixels of at least part of the light emitting units is electrically connected with the corresponding driving circuit through the corresponding partition structure. The resolution ratio of the display panel 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) display panel is one of the hot topics in the current display panel research field. OLED display panel has the advantages of low energy consumption, low cost, self-luminescence, wide viewing angle and fast response speed.

[0003] However, in the related art, it is difficult to improve the resolution of OLED display panels. Summary of the invention

[0004] Based on this, it is necessary to provide a display panel and a display device to solve the problem of how to improve the resolution of the display panel.

[0005] According to a first aspect of the present application, a display panel is provided, comprising:

[0006] An array substrate, comprising a plurality of driving circuits;

[0007] A plurality of light-emitting units, each light-emitting unit comprising a first sub-pixel and a second sub-pixel, wherein the first sub-pixel and the second sub-pixel are sequentially stacked on the array substrate in a direction away from the array substrate;

[0008] A plurality of isolation structures are provided around at least some of the light-emitting units, and at least one of the first sub-pixel and the second sub-pixel of at least some of the light-emitting units is electrically connected to the corresponding driving circuit through the corresponding isolation structure.

[0009] In some embodiments, the plurality of isolation structures include a first isolation structure and a second isolation structure that are spaced apart, the first sub-pixel is electrically connected to the corresponding driving circuit at least through the first isolation structure, and the second sub-pixel is electrically connected to the corresponding driving circuit at least through the second isolation structure;

[0010] Optionally, the second sub-pixel is electrically connected to the corresponding driving circuit through the first isolation structure and the second isolation structure;

[0011] Optionally, the first isolation structure is provided between any two adjacent light-emitting units along a first direction, and the second isolation structure is provided between any two adjacent light-emitting units along a second direction, and the first direction intersects the second direction;

[0012] Optionally, in the first direction, the light emitting units and the first isolation structures are arranged alternately;

[0013] Optionally, in the second direction, the light emitting units and the second isolation structures are arranged alternately.

[0014] In some embodiments, the first sub-pixel includes a first electrode, a first light-emitting layer, and a second electrode that are stacked, and the second sub-pixel includes a third electrode, a second light-emitting layer, and a fourth electrode that are stacked;

[0015] The second electrode is multiplexed as the third electrode, the second electrode is electrically connected to the corresponding driving circuit through the first isolation structure, and the fourth electrode is electrically connected to the corresponding driving circuit through the second isolation structure;

[0016] Optionally, the first electrode is spaced apart from the first isolation structure and the second isolation structure;

[0017] Optionally, the first direction is perpendicular to the second direction.

[0018] In some embodiments, the light-emitting unit includes at least one first pixel electrode and at least one second pixel electrode, the driving circuit includes a thin film transistor and a power signal line, the first pixel electrode is electrically connected to the thin film transistor in the corresponding driving circuit, and the second pixel electrode is electrically connected to the power signal line in the corresponding driving circuit;

[0019] The second electrode is the first pixel electrode, and the first electrode and the fourth electrode are the second pixel electrode; or, the first electrode and the fourth electrode are the first pixel electrode, and the second electrode is the second pixel electrode.

[0020] In some embodiments, the isolation structure includes a support portion and a crown portion stacked in sequence on the array substrate, the orthographic projection of the support portion on the array substrate is located within the orthographic projection of the crown portion on the array substrate, and the support portion is a conductive structure;

[0021] Optionally, the second electrode is connected to the support portion of the first isolation structure; the fourth electrode is connected to the support portion of the second isolation structure;

[0022] Optionally, the support portion and the crown portion are made of different materials.

[0023] In some embodiments, the second electrode is the first pixel electrode, and the first electrode and the fourth electrode are the second pixel electrode;

[0024] The second electrodes in different light-emitting units are connected to different first isolation structures.

[0025] In some embodiments, in the first direction, the first isolation structure connected to the second electrode is located on a same side of the corresponding light emitting unit.

[0026] In some embodiments, in the second direction, the fourth electrode in the light-emitting unit is connected to the second isolation structure located on at least one side of the light-emitting unit;

[0027] Optionally, in the second direction, the fourth electrode in the light emitting unit is connected to the second isolation structure located on two sides of the light emitting unit.

[0028] In some embodiments, the second isolation structure is in a strip shape and extends along the first direction, and the second isolation structure is connected to the fourth electrodes in a plurality of light emitting units distributed along the first direction.

[0029] In some embodiments, the first electrode and the fourth electrode are the first pixel electrodes, and the second electrode is the second pixel electrode;

[0030] The fourth electrodes in different light-emitting units are connected to different second isolation structures.

[0031] In some embodiments, in the second direction, the second isolation structure connected to the fourth electrode is located on a same side of the corresponding light emitting unit.

[0032] In some embodiments, in the first direction, the second electrode in the light-emitting unit is connected to the first isolation structure located on at least one side of the light-emitting unit;

[0033] Optionally, the second electrode in the light-emitting unit is connected to the first isolation structure located on two sides of the light-emitting unit.

[0034] In some embodiments, the first isolation structure is in a strip shape and extends along the second direction, and the first isolation structure is connected to the second electrodes in a plurality of light emitting units distributed along the second direction.

[0035] In some embodiments, the display panel further comprises a pixel definition layer disposed on the array substrate, and the isolation structure is disposed on a side of the pixel definition layer away from the array substrate;

[0036] The pixel definition layer includes a pixel definition structure and a pixel opening surrounded by the pixel definition structure, and the light emitting unit is at least partially located in the pixel opening;

[0037] The first electrode is disposed between the pixel definition structure and the array substrate, the first light emitting layer is disposed on a side of the corresponding first electrode away from the array substrate, and at least partially located in the corresponding pixel opening;

[0038] Optionally, the first isolation structure and the second isolation structure are both arranged on a side of the pixel definition structure away from the array substrate.

[0039] In some embodiments, the plurality of light-emitting units include a first light-emitting unit and a second light-emitting unit that are adjacently disposed, and the first light-emitting unit and the second light-emitting unit include a red sub-pixel, two green sub-pixels, and one blue sub-pixel;

[0040] Optionally, one of the first sub-pixel and the second sub-pixel in the first light-emitting unit is a green sub-pixel, and one of the first sub-pixel and the second sub-pixel in the second light-emitting unit is a green sub-pixel.

[0041] According to a second aspect of the present application, a display panel is provided, comprising:

[0042] An array substrate, comprising a plurality of driving circuits;

[0043] A plurality of light-emitting units, each light-emitting unit comprising a first sub-pixel and a second sub-pixel, wherein the first sub-pixel and the second sub-pixel are sequentially stacked on the array substrate in a direction away from the array substrate;

[0044] A plurality of isolation structures, including a plurality of first isolation structures and a plurality of second isolation structures, wherein the first isolation structure is disposed between any two adjacent light-emitting units along a first direction, and the second isolation structure is disposed between any two adjacent light-emitting units along a second direction, and the first direction intersects the second direction;

[0045] The first sub-pixel is electrically connected to the corresponding driving circuit at least through the first isolation structure, and the second sub-pixel is electrically connected to the corresponding driving circuit at least through the second isolation structure.

[0046] In some embodiments, the first sub-pixel includes a first electrode, a first light-emitting layer, and a second electrode that are stacked, and the second sub-pixel includes a third electrode, a second light-emitting layer, and a fourth electrode that are stacked;

[0047] The second electrode is multiplexed as the third electrode, the second electrode is electrically connected to the corresponding driving circuit through the first isolation structure, and the fourth electrode is electrically connected to the corresponding driving circuit through the second isolation structure.

[0048] According to a third aspect of the present application, a display device is provided, comprising any one of the display panels described above.

[0049] In the embodiment of the present application, in the first aspect, the first sub-pixel and the second sub-pixel are sequentially stacked on the array substrate in a direction away from the array substrate, so that at least two sub-pixels can be set in the area of ​​one light-emitting unit, and at least twice the number of sub-pixels can be set in the same area of ​​the display panel, which greatly improves the resolution of the display panel. In the second aspect, an isolation structure is provided at the periphery of at least some of the light-emitting units, and at least one of the first sub-pixel and the second sub-pixel of at least some of the light-emitting units is electrically connected to the corresponding driving circuit through the corresponding isolation structure, so that the first sub-pixel and the second sub-pixel can be controlled to emit light independently, and the independent control of the first sub-pixel and the second sub-pixel is realized. On the basis of improving the resolution, the image quality such as the fineness of the image can be further improved, and the first sub-pixel and the second sub-pixel are prevented from emitting light at unnecessary times, thereby improving the light-emitting efficiency and life of the first sub-pixel and the second sub-pixel. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the technical solutions in the embodiments or exemplary embodiments of the present application, the drawings required for use in the description of the embodiments or exemplary embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0051] Figure 1 A partial top view schematic diagram of a first display panel provided in some embodiments of the present application.

[0052] Figure 2 A first partial cross-sectional schematic diagram of a first display panel provided in some embodiments of the present application.

[0053] Figure 3 A second partial cross-sectional schematic diagram of the first display panel provided in some embodiments of the present application.

[0054] Figure 4 A partial top view schematic diagram of a second display panel provided in some embodiments of the present application.

[0055] Figure 5 A first partial cross-sectional schematic diagram of a second display panel provided in some embodiments of the present application.

[0056] Figure 6 A second partial cross-sectional schematic diagram of a second display panel provided in some embodiments of the present application.

[0057] Figure 7A schematic diagram of a display device provided in some embodiments of the present application.

[0058] Reference numerals: display device 200; display panel 100; array substrate 10; light emitting unit 230; first sub-pixel 20; second sub-pixel 30; substrate 11; array composite layer 12;

[0059] first direction CC; second direction DD; first electrode 21; first light emitting layer 22; second electrode 23; third electrode 31; second light emitting layer 32; fourth electrode 33;

[0060] Isolation structure 15; first isolation structure 151; second isolation structure 152; support portion 1501; crown portion 1502; first side wall 1501a; second side wall 1501b; third side wall 1501c; fourth side wall 1501d;

[0061] Driving circuit 13; first driving circuit 131; second driving circuit 132; third driving circuit 133;

[0062] A first pixel electrode P01; a second pixel electrode P02;

[0063] Pixel definition layer 14 ; pixel definition structure 141 ; pixel opening 142 ; first light emitting unit 231 ; second light emitting unit 232 . DETAILED DESCRIPTION

[0064] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0065] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0066] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0067] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0068] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0069] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0070] In the related art, it is difficult to improve the resolution of OLED display panels.

[0071] In order to solve the problem of how to improve the resolution of a display panel, the present application provides a display panel and a display device.

[0072] See also Figures 1 to 3 , Figure 1A partial top view schematic diagram of a first display panel provided in some embodiments of the present application; Figure 2 A first partial cross-sectional schematic diagram of a first display panel provided in some embodiments of the present application; Figure 3 A second partial cross-sectional schematic diagram of the first display panel provided in some embodiments of the present application. Figure 2 for Figure 1 A schematic cross-sectional view of the CC direction along the dashed line; Figure 3 for Figure 1 Schematic diagram of the cross section along the dotted line DD; the dotted line CC direction is the first direction, and the dotted line DD direction is the second direction.

[0073] See also Figures 4 to 6 , Figure 4 A partial top view schematic diagram of a second display panel provided in some embodiments of the present application; Figure 5 A first partial cross-sectional schematic diagram of a second display panel provided in some embodiments of the present application; Figure 6 A second partial cross-sectional schematic diagram of a second display panel provided in some embodiments of the present application. Figure 5 for Figure 4 A schematic cross-sectional view of the CC direction along the dashed line; Figure 6 for Figure 4 Schematic diagram of the cross section along the dotted line DD; the dotted line CC direction is the first direction, and the dotted line DD direction is the second direction.

[0074] Figures 1 to 6 Only partial structures or local structures of the display panel 100 are illustrated, and the display panel 100 may also include other structures.

[0075] The composition, preparation and other contents of the isolation structure mentioned below are further described in patents CN118251982A, 202410864269.8, PCT / CN2024 / 098407, PCT / CN2024 / 102783, PCT / CN2024 / 098217, PCT / CN2024 / 100935, PCT / CN2024 / 102785, PCT / CN2024 / 099419, PCT / CN2024 / 099072, and CN116685174A for reference.

[0076] First, see Figures 1 to 3 ,or Figures 4 to 6The present application provides a display panel 100, which includes an array substrate 10, a plurality of light-emitting units 230, and a plurality of isolation structures 15. The array substrate 10 includes a plurality of driving circuits 13; the light-emitting units 230 include a first sub-pixel 20 and a second sub-pixel 30, which are sequentially stacked on the array substrate 10 in a direction away from the array substrate 10; the isolation structure 15 is disposed around at least some of the light-emitting units 230, and at least one of the first sub-pixel 20 and the second sub-pixel 30 of at least some of the light-emitting units 230 is electrically connected to the corresponding driving circuit 13 through the corresponding isolation structure 15.

[0077] For example, the array substrate 10 includes a plurality of driving circuits 13. For example, the array substrate 10 includes a substrate 11 and a plurality of driving circuits 13 disposed on one side of the substrate 11. For example, the array substrate 10 may include a substrate 11 and an array composite layer 12 disposed on one side of the substrate 11, and a plurality of driving circuits 13 disposed on the array composite layer 12, and the film layer structure of the array composite layer 12 may include a plurality of transistors in the plurality of driving circuits 13 and a film layer of at least one power signal line.

[0078] For example, the light emitting unit 230 may be at least two light emitting devices stacked together, which is not limited here.

[0079] For example, the light emitted by the first sub-pixel 20 and the second sub-pixel 30 in one light-emitting unit 230 may be the same or different.

[0080] For example, in some embodiments, the first sub-pixel 20 and the second sub-pixel 30 in a light-emitting unit 230 can emit light separately, for example, when the first sub-pixel 20 emits light, the second sub-pixel 30 does not emit light; for example, when the second sub-pixel 30 emits light, the first sub-pixel 20 does not emit light.

[0081] For example, in some other embodiments, the first sub-pixel 20 and the second sub-pixel 30 in one light-emitting unit 230 may emit light at the same time. For example, when the first sub-pixel 20 emits light, the second sub-pixel 30 may also emit light.

[0082] For example, in some embodiments, the first sub-pixel 20 and the second sub-pixel 30 in one light emitting unit 230 may be independently controlled to emit light separately or simultaneously.

[0083] For example, at least one of the first sub-pixel 20 and the second sub-pixel 30 of at least part of the light-emitting unit 230 is electrically connected to the corresponding driving circuit 13 through the corresponding isolation structure 15. For example, the first sub-pixel 20 of at least part of the light-emitting unit 230 is electrically connected to the corresponding driving circuit 13 through the corresponding isolation structure 15. For example, the second sub-pixel 30 of at least part of the light-emitting unit 230 is electrically connected to the corresponding driving circuit 13 through the corresponding isolation structure 15. Both the first sub-pixel 20 and the second sub-pixel 30 of at least part of the light-emitting unit 230 are electrically connected to the corresponding driving circuit 13 through the corresponding isolation structure 15.

[0084] In the embodiment of the present application, in the first aspect, the first sub-pixel 20 and the second sub-pixel 30 are sequentially stacked on the array substrate 10 in a direction away from the array substrate 10, so that at least two sub-pixels can be set in the area of ​​one light-emitting unit 230, and at least twice the number of sub-pixels can be set in the same area of ​​the display panel 100, which greatly improves the resolution of the display panel. In the second aspect, an isolation structure 15 is provided around at least part of the light-emitting units 230, and at least one of the first sub-pixel 20 and the second sub-pixel 30 of at least part of the light-emitting units 230 is electrically connected to the corresponding driving circuit 13 through the corresponding isolation structure 15, so that the first sub-pixel 20 and the second sub-pixel 30 can be controlled to emit light independently, and the independent control of the first sub-pixel 20 and the second sub-pixel 30 is realized. On the basis of improving the resolution, the image quality such as the fineness of the image can be further improved, and the first sub-pixel 20 and the second sub-pixel 30 are prevented from emitting light at unnecessary times, thereby improving the light-emitting efficiency and life of the first sub-pixel 20 and the second sub-pixel 30.

[0085] In some embodiments, Figures 1 to 3 ,or Figures 4 to 6 As shown, the plurality of isolation structures 15 include a first isolation structure 151 and a second isolation structure 152 that are spaced apart. The first sub-pixel 20 is electrically connected to the corresponding driving circuit at least through the first isolation structure 151 , and the second sub-pixel 30 is electrically connected to the corresponding driving circuit at least through the second isolation structure 152 .

[0086] Optionally, in some embodiments, the second sub-pixel 30 is electrically connected to the corresponding driving circuit 13 through the first isolation structure 151 and the second isolation structure 152 .

[0087] Optionally, in some embodiments, a first isolation structure 151 is provided between any two light emitting units 230 adjacent along a first direction CC, and a second isolation structure 152 is provided between any two light emitting units adjacent along a second direction DD, and the first direction CC intersects the second direction DD.

[0088] Optionally, in some embodiments, in the first direction CC, the light emitting units 230 and the first isolation structures 151 are arranged alternately.

[0089] Optionally, in some embodiments, in the second direction DD, the light emitting units 230 and the second isolation structures 152 are arranged alternately.

[0090] In one embodiment, the first direction is a row direction, and the second direction is a column direction. In another embodiment, the first direction is a column direction, and the second direction is a row direction.

[0091] For example, in Figures 1 to 3 ,or Figures 4 to 6 Although the first isolation structure 151 and the second isolation structure 152 are filled with different colors to distinguish them, the first isolation structure 151 and the second isolation structure 152 can be arranged in the same layer, made by the same process, and made of the same material.

[0092] For example, in the first direction CC, a plurality of first isolation structures 151 are arranged in sequence, and the first isolation structures 151 are disposed at one side of the corresponding light emitting unit 230 .

[0093] For example, in the second direction DD, a plurality of second isolation structures 152 are arranged in sequence, and the second isolation structures 152 are disposed at one side of the corresponding light emitting unit 230 .

[0094] For example, the first isolation structure 151 and the second isolation structure 152 are spaced apart from each other, and the first isolation structure 151 and the second isolation structure 152 are insulated from each other.

[0095] For example, the first sub-pixel 20 is electrically connected to the corresponding driving circuit 13 at least through the first isolation structure 151 . For example, the first sub-pixel 20 includes an anode and a cathode, and one of the anode and the cathode of the first sub-pixel 20 is electrically connected to the corresponding driving circuit 13 through the first isolation structure 151 .

[0096] For example, the second sub-pixel 30 is electrically connected to the corresponding driving circuit 13 at least through the second isolation structure 152 . For example, the second sub-pixel 30 includes an anode and a cathode, and one of the anode and the cathode of the second sub-pixel 30 is electrically connected to the corresponding driving circuit 13 through the second isolation structure 152 .

[0097] For example, in some embodiments, the first sub-pixel 20 of the light-emitting unit 230 is electrically connected to the corresponding driving circuit 13 at least through the first isolation structure 151 disposed on one side of the light-emitting unit 230 in the first direction CC; the second sub-pixel 30 of the light-emitting unit 230 is electrically connected to the corresponding driving circuit 13 at least through the second isolation structure 152 disposed on one side of the light-emitting unit 230 in the second direction DD. The first isolation structure 151 and the second isolation structure 152 are arranged at intervals, and the first sub-pixel 20 and the second sub-pixel 30 are electrically connected to the corresponding driving circuit 13 through the corresponding isolation structure 15 in different directions, on the one hand, so that the first sub-pixel 20 and the second sub-pixel 30 can be independently controlled; on the other hand, the first isolation structure 151 connected to the first sub-pixel 20 and the second isolation structure 152 connected to the second sub-pixel 30 are in different directions, which makes it easy to implement in the manufacturing method and simplifies the manufacturing process.

[0098] In some embodiments, the first sub-pixel 20 includes a first electrode 21, a first light-emitting layer 22, and a second electrode 23 that are stacked, and the second sub-pixel 30 includes a third electrode 31, a second light-emitting layer 32, and a fourth electrode 33 that are stacked; the second electrode 23 is reused as the third electrode 31, the second electrode 23 is electrically connected to the corresponding driving circuit 13 through the first isolation structure 151, and the fourth electrode 33 is electrically connected to the corresponding driving circuit 13 through the second isolation structure 152.

[0099] For example, one of the first electrode 21 and the second electrode 23 in the first sub-pixel 20 may be an anode, and the other may be a cathode.

[0100] By way of example, one of the third electrode 31 and the fourth electrode 33 in the second sub-pixel 30 may be an anode, and the other may be a cathode.

[0101] For example, the second electrode 23 is reused as the third electrode 31 , which means that when the first sub-pixel 20 emits light, the second electrode 23 provides voltage or current to the first light-emitting layer 22 , and when the second sub-pixel 30 emits light, the second electrode 23 provides voltage or current to the second light-emitting layer 32 .

[0102] By way of example, other film layers besides the first light-emitting layer 22 (Emission layer, EML) may be further included between the first electrode 21 and the second electrode 23 of the first sub-pixel 20, for example, one or more of a hole injection layer (HIL), a hole transport layer (HTL), an electron injection layer (EIL), an electron transport layer (ETL), a hole blocking layer (HBL) and an electron blocking layer (EBL) may be further included.

[0103] By way of example, other film layers besides the second light-emitting layer 32 (Emission layer, EML) may be further included between the third electrode 31 and the fourth electrode 33 of the second sub-pixel 30, for example, one or more of a hole injection layer (HIL), a hole transport layer (HTL), an electron injection layer (EIL), an electron transport layer (ETL), a hole blocking layer (HBL) and an electron blocking layer (EBL) may be further included.

[0104] For example, the second electrode 23 is reused as the third electrode 31, which reduces the total number of electrodes of the first sub-pixel 20 and the second sub-pixel 30 of the light-emitting unit 230, so that the second electrode 23 is electrically connected to the corresponding driving circuit 13 through the first isolation structure 151, and the fourth electrode 33 is electrically connected to the corresponding driving circuit 13 through the second isolation structure 152, so that independent control of the first sub-pixel 20 and the second sub-pixel 30 can be achieved, and the type / number of isolation structures 15 is also reduced.

[0105] Optionally, in some embodiments, the first electrode 21 is spaced apart from the first isolation structure 151 and the second isolation structure 152 .

[0106] For example, in some embodiments, the first electrode 21 can be directly connected to the corresponding driving circuit 13 through the via hole in the array composite layer 12, and the first electrode 21 does not need to provide electrical signals through the first isolation structure 151 and the second isolation structure 152. Therefore, the first electrode 21 and the first isolation structure 151 and the second isolation structure 152 are spaced apart from each other, which can avoid short circuits between different electrodes in the light-emitting unit 230.

[0107] Optionally, in some embodiments, the first direction CC is perpendicular to the second direction DD.

[0108] For example, the first direction CC is perpendicular to the second direction DD, and one of the second electrode and the fourth electrode is formed by an evaporation process to achieve that the first sub-pixel 20 is connected to the first isolation structure 151 and the second sub-pixel 30 is connected to the second isolation structure 152 in different directions, thereby avoiding overlapping of the second electrode and the fourth electrode to cause a short circuit.

[0109] In some embodiments, the light-emitting unit 230 includes at least one first pixel electrode P01 and at least one second pixel electrode P02, the driving circuit 13 includes a thin film transistor and a power signal line, the first pixel electrode P01 is electrically connected to the thin film transistor in the corresponding driving circuit 13, and the second pixel electrode P02 is electrically connected to the power signal line in the corresponding driving circuit 13. The second electrode 23 is the first pixel electrode P01, and the first electrode 21 and the fourth electrode 33 are the second pixel electrode P02; or, the first electrode 21 and the fourth electrode 33 are the first pixel electrode P01, and the second electrode 23 is the second pixel electrode P02.

[0110] For example, in some implementations, when the driving circuit 13 includes a thin film transistor, the driving circuit 13 may be a pixel driving circuit, but is not limited thereto.

[0111] For example, in some embodiments, when the driving circuit 13 includes a power signal line, the power signal line may be a VSS signal line (cathode power signal line), but is not limited thereto. For example, the power signal line may also be an anode power signal line.

[0112] For example, in some embodiments, the driving circuit 13 includes a thin film transistor and a power signal line.

[0113] By way of example, the first pixel electrode P01 is electrically connected to a corresponding thin film transistor in the driving circuit 13 , that is, the first pixel electrode P01 can be provided with and controlled by an electrical signal of the thin film transistor in the driving circuit 13 .

[0114] For example, in some embodiments, the second pixel electrode P02 is electrically connected to the power signal line in the corresponding driving circuit 13. In one frame, when the electrical signals of the second pixel electrodes P02 in at least some of the light-emitting units 230 are the same, multiple second pixel electrodes P02 with the same electrical signals in different light-emitting units 230 can be electrically connected to each other to reduce the number and complexity of the corresponding power signal lines.

[0115] For example, in some embodiments, Figures 1 to 3As shown, the second electrode 23 is the first pixel electrode P01, and the first electrode 21 and the fourth electrode 33 are the second pixel electrode P02, which can realize independent control and independent light emission of the first sub-pixel 20 and independent control and independent light emission of the second sub-pixel 30.

[0116] For example, in some other embodiments, Figures 4 to 6 As shown, the first electrode 21 and the fourth electrode 33 are the first pixel electrode P01, and the second electrode 23 is the second pixel electrode P02, which can realize independent control and independent light emission of the first sub-pixel 20 and the second sub-pixel 30.

[0117] It should be noted that the first pixel electrode P01 has no specific association with the anode or cathode, and the second pixel electrode P02 has no specific association with the anode or cathode. For example, one electrode of a sub-pixel is an anode, and the anode can be the first pixel electrode P01 to be independently controlled by a thin film transistor in a corresponding driving circuit 13; for example, one electrode of a sub-pixel is a cathode, and the cathode can be the first pixel electrode P01 to be independently controlled by a thin film transistor in a corresponding driving circuit 13.

[0118] In some embodiments, the isolation structure 15 includes a support portion 1501 and a crown portion 1502 stacked in sequence on the array substrate 10, the orthographic projection of the support portion 1501 on the array substrate 10 is located within the orthographic projection of the crown portion 1502 on the array substrate 10, and the support portion 1501 is a conductive structure.

[0119] Optionally, in some embodiments, the second electrode 23 is connected to the support portion 1501 of the first isolation structure 151 ; and the fourth electrode 33 is connected to the support portion 1501 of the second isolation structure 152 .

[0120] For example, the second electrode 23 is connected to the support portion 1501 of the first isolation structure 151 . The support portion 1501 is a conductive structure. The first isolation structure 151 can provide an electrical signal for the second electrode 23 .

[0121] For example, the fourth electrode 33 is connected to the support portion 1501 of the second isolation structure 152 , the support portion 1501 is a conductive structure, and the second isolation structure 152 can provide an electrical signal for the fourth electrode 33 .

[0122] Optionally, in some embodiments, the support portion 1501 and the crown portion 1502 are integrally formed.

[0123] Optionally, in some embodiments, the materials of the support portion 1501 and the crown portion 1502 are different.

[0124] For example, the isolation structure 15 includes a support portion 1501 and a crown portion 1502, the crown portion 1502 is located on the side of the support portion 1501 away from the substrate 11, and the orthographic projection of one end (top end) of the support portion 1501 facing the crown portion 1502 on the substrate 11 is located within the orthographic projection of the crown portion 1502 on the substrate 11. In this way, at least the portion of the isolation structure 15 away from the substrate 11 is set to a shape that is wide at the top and narrow at the bottom, so that the isolation structure 15 can block the light-emitting layer or other film layers such as the hole transport layer HTL of the adjacent light-emitting unit 230, so that the isolation structure 15 can block the second electrode 23 or / and the fourth electrode 33 of the adjacent light-emitting unit 230, which can save expensive fine metal mask plates (FMM), thereby reducing the manufacturing cost of the display panel. At the same time, after not using the fine metal mask plate (FMM), the light-emitting area of ​​the sub-pixel is not limited by the opening of the fine metal mask plate, the light-emitting area of ​​the sub-pixel can be made smaller, and a larger number of sub-pixels can be formed in the display panel, thereby improving the resolution of the display panel.

[0125] For example, the support portion 1501 and the crown portion 1502 may be a multi-layered structure, which is convenient for being formed of different materials. For example, the support portion 1501 is designed to be a conductive material, and the crown portion 1502 is set to be an insulating material. For example, the support portion 1501 is designed to be a conductive material, and the crown portion 1502 is set to be a conductive material, but the etching rate of the support portion 1501 is greater than the etching rate of the crown portion 1502. For example, the support portion 1501 and the crown portion 1502 can be set to an integrated structure to increase the firmness of the isolation structure 15.

[0126] For example, the support portion 1501 includes at least one metal layer. In one example, the support portion 1501 includes a metal layer. Further, the material of the support portion 1501 includes at least one of a metal and a metal oxide. For example, the metal may be silver, copper, titanium, aluminum, etc. The metal oxide may be tin oxide, zinc oxide, cadmium oxide, indium oxide, indium tin oxide, zinc indium oxide, zinc gallium oxide, zinc aluminum oxide, titanium tantalum oxide, etc.

[0127] Illustratively, the material of the crown 1502 includes titanium or molybdenum.

[0128] For example, in some embodiments, the stacked structure of the isolation structure 15 may be titanium / aluminum / titanium or molybdenum / aluminum / molybdenum. By providing three stacked metal layers, the resistance of the isolation structure 15 may be reduced, thereby reducing the power consumption of the display panel 100.

[0129] See also Figures 1 to 3 .

[0130] In some embodiments, Figures 1 to 3As shown, the second electrode 23 is the first pixel electrode P01 , and the first electrode 21 and the fourth electrode 33 are the second pixel electrode P02 ; the second electrodes 23 in different light-emitting units 230 are connected to different first isolation structures 151 .

[0131] For example, Figures 1 to 3 As shown, the second electrode 23 is multiplexed as the third electrode 31 , and the plurality of driving circuits 13 include a first driving circuit 131 , a second driving circuit 132 , and a third driving circuit 133 .

[0132] For example, in some embodiments, the second driving circuit 132 includes a thin film transistor, and the second electrode 23 controls the switching of its electrical signal through the thin film transistor in the second driving circuit 132 .

[0133] For example, in some embodiments, the first driving circuit 131 includes a power signal line, and the power signal line in the first driving circuit 131 is electrically connected between the first electrode 21 and the driving chip. For example, the first electrode 21 is a cathode power signal (VSS signal).

[0134] For example, in some embodiments, the third driving circuit 133 includes a power signal line, and the power signal line in the third driving circuit 133 is electrically connected between the fourth electrode 33 and the driving chip. For example, the fourth electrode 33 is a cathode power signal (VSS signal).

[0135] For example, in some embodiments, the first driving circuit 131 and the third driving circuit 133 may include different or the same power signal lines.

[0136] For example, in some embodiments, the first electrodes 21 of at least a portion of the light-emitting units 230 are interconnected and electrically connected to the driving chip through a power signal line in the first driving circuit 131 .

[0137] For example, in some embodiments, the fourth electrodes 33 of at least a portion of the light-emitting units 230 are interconnected and electrically connected to the driving chip through a power signal line in the third driving circuit 133 .

[0138] For example, in some embodiments, the second electrodes 23 in different light-emitting units 230 are connected to different first isolation structures 151, so that the second electrodes 23 in different light-emitting units 230 can provide electrical signals through different first isolation structures 151, and the second electrodes 23 in different light-emitting units 230 can be independently controlled by electrical signals.

[0139] Alternatively, if Figures 1 to 3 As shown, in the first direction CC, the first isolation structure 151 connected to the second electrode 23 is located at the same side of the corresponding light emitting unit 230 .

[0140] For example, the second electrode 23 in the light emitting unit 230 is connected to the adjacent first isolation structure 151 on one side of the light emitting unit 230 , and the second electrodes 230 of different light emitting units 230 are connected to the adjacent first isolation structures 151 on the same side of the corresponding light emitting units 230 .

[0141] For example, Figures 1 to 3 As shown, on the one hand, the second electrode 23 is the first pixel electrode P01, so the second electrodes 23 in different light-emitting units 230 are connected to the adjacent first isolation structure 151 on the same side of the light-emitting unit 230, so that the second electrode 23 of a light-emitting unit 230 controls the switch of its electrical signal separately through a thin film transistor in a second driving circuit 132. On the other hand, the second electrode 23 can be formed by an evaporation process, and the evaporation angle of the second electrode 23 formed by the evaporation process can be controlled, so that the second electrode 23 can be connected to the adjacent first isolation structure 151 only on one side, so that the second electrodes 23 of different light-emitting units 230 are connected to the adjacent first isolation structure 151 on the same side of the corresponding light-emitting unit 230, which can avoid short circuits between different light-emitting units 230.

[0142] For example, in some embodiments, Figures 1 to 3 As shown, the support portion 1501 of the first isolation structure 151 includes a first side wall 1501a and a second side wall 1501b that are arranged in opposite directions in the first direction CC, and the first side walls 1501a in different first isolation structures 151 face the same direction. The second electrode 23 in the light-emitting unit 230 is connected to one of the first side wall 1501a and the second side wall 1501b in the first isolation structure 151 adjacent to one side of the light-emitting unit 230 and facing the light-emitting unit 230.

[0143] For example, in some embodiments, Figure 2 As shown, the second electrode 23 in the light-emitting unit 230 is connected to the first side wall 1501a of the first isolation structure 151 adjacent to one side of the light-emitting unit 230 and facing the light-emitting unit 230, so that the second electrode 23 of a light-emitting unit 230 is individually controlled by a thin film transistor in a second driving circuit 132 to switch its electrical signal.

[0144] For example, in some other embodiments ( Figure 2 (not shown), the second electrode 23 in the light-emitting unit 230 is connected to the second side wall 1501b of the first isolation structure 151 adjacent to one side of the light-emitting unit 230 and facing the light-emitting unit 230, so that the second electrode 23 of a light-emitting unit 230 is independently controlled by a thin film transistor in a second driving circuit 132 to switch its electrical signal.

[0145] Optionally, in some embodiments, Figures 1 to 3 As shown, in the second direction DD, the fourth electrode 33 in the light emitting unit 230 is connected to the second isolation structure 152 located at least on one side of the light emitting unit 230 .

[0146] Optionally, in some embodiments, Figures 1 to 3 As shown, in the second direction DD, the fourth electrode 33 in the light emitting unit 230 is connected to the second isolation structure 152 located on both sides of the light emitting unit 230 .

[0147] For example, Figures 1 to 3 As shown, in some embodiments, the second electrode 23 is the first pixel electrode P01, and the first pixel electrode P01 is electrically connected to the thin film transistor in the corresponding driving circuit 13. After the second electrode 23 can be independently controlled by the thin film transistor, the fourth electrode 33 is the second pixel electrode P02, and multiple second pixel electrodes P02 with the same electrical signals in at least some different light-emitting units 230 can be electrically connected to each other to reduce the number and complexity of the corresponding power signal lines. Therefore, the fourth electrode 33 can be connected to the second isolation structure 152 adjacent to one side, and the fourth electrode 33 can also be connected to the second isolation structure 152 adjacent to both sides.

[0148] For example, in some embodiments, Figures 1 to 3 As shown, the supporting portion 1501 of the second isolation structure 152 includes a third side wall 1501c and a fourth side wall 1501d which are arranged opposite to each other in the second direction DD, and the third side walls 1501c in different second isolation structures 152 are oriented in the same direction; the fourth electrode 33 in the light-emitting unit 230 is connected to the third side wall 1501c or the fourth side wall 1501d in the second isolation structure 152 adjacent to at least one side of the light-emitting unit 230 and facing the light-emitting unit 230.

[0149] For example, in some embodiments, Figures 1 to 3 As shown, the fourth electrode 33 in the light emitting unit 230 connects the third side wall 1501c and the fourth side wall 1501d of the second isolation structure 152 adjacent to the light emitting unit 230 on both sides and facing the light emitting unit 230 .

[0150] For example, in some embodiments, the fourth electrode 33 in the light-emitting unit 230 is connected to the third side wall 1501c of the second isolation structure 152 adjacent to one side of the light-emitting unit 230 and facing the light-emitting unit 230. Only one angle is required to evaporate and form the fourth electrode 33, which simplifies the production process.

[0151] For example, in some other embodiments, the fourth electrode 33 in the light-emitting unit 230 is connected to the fourth side wall 1501d in the second isolation structure 152 adjacent to one side of the light-emitting unit 230 and facing the light-emitting unit 230. Only one angle is required to evaporate and form the fourth electrode 33, which simplifies the production process.

[0152] For example, in some other embodiments, the fourth electrode 33 in the light-emitting unit 230 connects the third side wall 1501c and the fourth side wall 1501d in the second isolation structure 152 adjacent to the two sides of the light-emitting unit 230, and the fourth electrode 33 is formed by evaporation at different angles to ensure the tightness of the connection between the fourth electrode 33 and the second isolation structure 152.

[0153] In some embodiments, Figures 1 to 3 As shown, the second isolation structure 152 is in a strip shape and extends along the first direction CC. The second isolation structure 152 is connected to the fourth electrodes 33 in a plurality of light emitting units 230 distributed along the first direction CC.

[0154] For example, Figures 1 to 3 As shown, in some embodiments, the second electrode 23 is the first pixel electrode P01, and the first pixel electrode P01 is electrically connected to the thin film transistor in the corresponding driving circuit 13. After the second electrode 23 can be independently controlled by the thin film transistor, the fourth electrode 33 is the second pixel electrode P02, and multiple second pixel electrodes P02 with the same electrical signals in at least some different light-emitting units 230 can be electrically connected to each other to reduce the number and complexity of the corresponding power signal lines.

[0155] For example, in some embodiments, the orthographic projection of the first isolation structure 151 on the array substrate 10 is in an island shape or a block shape.

[0156] It should be noted that in Figures 1 to 3 In the example, the first electrode 21 can be an anode or a cathode, the second electrode 23 is the other of the anode and the cathode, and the fourth electrode 33 is the one of the anode and the cathode different from the second electrode 23. For example, the second electrode 23 is an anode, and the fourth electrode 33 is a cathode. For example, the second electrode 23 is a cathode, and the fourth electrode 33 is an anode.

[0157] See also Figures 4 to 6 .

[0158] In some embodiments, Figures 4 to 6 As shown, the first electrode 21 and the fourth electrode 33 are the first pixel electrode P01 , and the second electrode 23 is the second pixel electrode P02 ; the fourth electrodes 33 in different light-emitting units 230 are connected to different second isolation structures 152 .

[0159] By way of example, the first electrode 21 and the fourth electrode 33 are different first pixel electrodes P01 .

[0160] For example, Figures 4 to 6 As shown, the second electrode 23 is multiplexed as the third electrode 31 , and the plurality of driving circuits 13 include a first driving circuit 131 , a second driving circuit 132 , and a third driving circuit 133 .

[0161] For example, the first driving circuit 131 and the second driving circuit 132 both include thin film transistors, and the first electrode 21 controls the switching of its electrical signal through the thin film transistor in the first driving circuit 131. The fourth electrode 33 controls the switching of its electrical signal through the thin film transistor in the second driving circuit 132.

[0162] For example, in some embodiments, the third driving circuit 133 includes a power signal line, and the power signal line in the third driving circuit 133 is electrically connected between the second electrode 23 and the driving chip. For example, the second electrode 23 is a cathode power signal (VSS signal).

[0163] For example, in some embodiments, the second electrodes 23 of at least some of the light emitting units 230 are interconnected and electrically connected to the driving chip through the power signal line in the third driving circuit 133 .

[0164] For example, in some embodiments, the fourth electrodes 33 in different light-emitting units 230 are connected to different second isolation structures 152, so that the fourth electrodes 33 in different light-emitting units 230 can provide electrical signals through different second isolation structures 152, and the fourth electrodes 33 in different light-emitting units 230 can be independently controlled by electrical signals.

[0165] In some embodiments, Figures 4 to 6 As shown, in the second direction DD, the second isolation structure 152 connected to the fourth electrode 33 is located at the same side of the corresponding light emitting unit 230 .

[0166] For example, Figures 4 to 6 As shown, the fourth electrode 33 in the light-emitting unit 230 is connected to the adjacent second isolation structure 152 on one side of the light-emitting unit 230 , and the fourth electrodes 33 of different light-emitting units 230 are connected to the adjacent second isolation structure 152 on the same side of the corresponding light-emitting unit 230 .

[0167] For example, Figures 4 to 6As shown, on the one hand, the fourth electrode 33 is the first pixel electrode P01, so the fourth electrodes 33 in different light-emitting units 230 are connected to the adjacent second isolation structure 152 on the same side of the light-emitting unit 230, so that the fourth electrode 33 of one light-emitting unit 230 controls the switch of its electrical signal separately through the thin film transistor in the second driving circuit 132. On the other hand, the fourth electrode 33 can be formed by an evaporation process, and the evaporation angle of the fourth electrode 33 formed by the evaporation process can be controlled, so that the fourth electrode 33 can be connected to the adjacent second isolation structure 152 only on one side, so that the fourth electrodes 33 of different light-emitting units 230 are connected to the adjacent second isolation structure 152 on the same side of the corresponding light-emitting unit 230, which can avoid short circuits between different light-emitting units 230.

[0168] For example, in some embodiments, Figures 4 to 6 As shown, the supporting portion 1501 of the second isolation structure 152 includes a third side wall 1501c and a fourth side wall 1501d which are arranged opposite to each other in the second direction DD, and the third side walls 1501c in different second isolation structures 152 are oriented in the same direction; the fourth electrode 33 in the light-emitting unit 230 is connected to one of the third side wall 1501c and the fourth side wall 1501d in the second isolation structure 152 adjacent to one side of the light-emitting unit 230 and facing the light-emitting unit 230.

[0169] For example, in some embodiments, Figure 6 As shown, the fourth electrode 33 in the light-emitting unit 230 is connected to the third side wall 1501c in the second isolation structure 152 adjacent to one side of the light-emitting unit 230 and facing the light-emitting unit 230, so that the fourth electrode 33 of a light-emitting unit 230 is independently controlled by a thin film transistor in a second driving circuit 132 to switch its electrical signal.

[0170] For example, in some other embodiments ( Figure 6 (not shown), the fourth electrode 33 in the light-emitting unit 230 is connected to the fourth side wall 1501d in the second isolation structure 152 adjacent to one side of the light-emitting unit 230 and facing the light-emitting unit 230, so that the fourth electrode 33 of a light-emitting unit 230 is independently controlled by a thin film transistor in a third driving circuit 133 to switch its electrical signal.

[0171] In some embodiments, Figures 4 to 6 As shown, in the first direction CC, the second electrode 23 in the light emitting unit 230 is connected to the first isolation structure 151 located at least on one side of the light emitting unit 230 .

[0172] Optionally, the second electrode 23 in the light emitting unit 230 is connected to the first isolation structure 151 located on both sides of the light emitting unit 230 .

[0173] For example, Figures 4 to 6 As shown, the fourth electrode 33 is the first pixel electrode P01, and the first pixel electrode P01 is electrically connected to the thin film transistor in the corresponding driving circuit 13. After the fourth electrode 33 can be independently controlled by the thin film transistor, the second electrode 23 is the second pixel electrode P02, and multiple second pixel electrodes P02 with the same electrical signals in at least some different light-emitting units 230 can be electrically connected to each other to reduce the number and complexity of the corresponding power signal lines. Therefore, the second electrode 23 can be connected to the first isolation structure 151 adjacent to one side, and the second electrode 23 can also be connected to the first isolation structure 151 adjacent to both sides.

[0174] For example, in some embodiments, the supporting portion 1501 of the first isolation structure 151 includes a first side wall 1501a and a second side wall 1501b that are arranged opposite to each other in the first direction CC, and the first side walls 1501a in different first isolation structures 151 are oriented in the same direction; the second electrode 23 in the light-emitting unit 230 is connected to the first side wall 1501a or the second side wall 1501b in the first isolation structure 151 adjacent to at least one side of the light-emitting unit 230 and facing the light-emitting unit 230.

[0175] For example, in some embodiments, the second electrode 23 in the light emitting unit 230 connects the first side wall 1501 a and the second side wall 1501 b of the first isolation structure 151 adjacent to the light emitting unit 230 on both sides and facing the light emitting unit 230 .

[0176] For example, in some embodiments, the second electrode 23 in the light-emitting unit 230 is connected to the first side wall 1501a of the first isolation structure 151 adjacent to one side of the light-emitting unit 230 and facing the light-emitting unit 230. Only one angle is required for evaporation to form the fourth electrode 33, which simplifies the production process.

[0177] For example, in some other embodiments, the second electrode 23 in the light-emitting unit 230 is connected to the second side wall 1501b of the first isolation structure 151 adjacent to one side of the light-emitting unit 230 and facing the light-emitting unit 230. Only one angle of evaporation is required to form the fourth electrode 33, which simplifies the production process.

[0178] For example, in some other embodiments, the second electrode 23 in the light-emitting unit 230 connects the first side wall 1501a and the second side wall 1501b in the first isolation structure 151 adjacent to both sides of the light-emitting unit 230, and the second electrode 23 is formed by evaporation at different angles to ensure the tightness of the connection between the second electrode 23 and the second isolation structure 152.

[0179] In some embodiments, Figures 4 to 6As shown, the first isolation structure 151 is in a strip shape and extends along the second direction DD. The first isolation structure 151 is connected to the second electrodes 23 in a plurality of light emitting units 230 distributed along the second direction DD.

[0180] For example, Figures 4 to 6 As shown, the fourth electrode 33 is the first pixel electrode P01, and the first pixel electrode P01 is electrically connected to the thin film transistor in the corresponding driving circuit 13. After the fourth electrode 33 can be independently controlled by the thin film transistor, the second electrode 23 is the second pixel electrode P02, and multiple second pixel electrodes P02 with the same electrical signals in at least some different light-emitting units 230 can be electrically connected to each other to reduce the number and complexity of the corresponding power signal lines.

[0181] For example, in some embodiments, the orthographic projection of the second isolation structure 152 on the array substrate 10 is in an island shape or a block shape.

[0182] It should be noted that if Figures 4 to 6 As shown, the first electrode 21 can be an anode or a cathode, the second electrode 23 is the other of the anode and the cathode, and the fourth electrode 33 is the one of the anode and the cathode different from the second electrode 23. For example, the second electrode 23 is an anode, and the fourth electrode 33 is a cathode. For example, the second electrode 23 is a cathode, and the fourth electrode 33 is an anode.

[0183] See also Figures 1 to 3 ,or Figures 4 to 6 .

[0184] In some embodiments, Figures 1 to 3 ,or Figures 4 to 6 As shown, the display panel 100 also includes a pixel definition layer 14 arranged on the array substrate 10, and the isolation structure 15 is arranged on the side of the pixel definition layer 14 away from the array substrate 10; the pixel definition layer 14 includes a pixel definition structure 141, and a pixel opening 142 surrounded by the pixel definition structure 141, and the light-emitting unit 230 is at least partially located in the pixel opening 142; the first electrode 21 is arranged between the pixel definition structure 141 and the array substrate 10, and the first light-emitting layer 22 is arranged on the side of the corresponding first electrode 21 away from the array substrate 10, and is at least partially located in the corresponding pixel opening 142.

[0185] For example, in some embodiments, the display panel 100 includes a pixel definition layer 14 ; in other embodiments, the display panel 100 may not include the pixel definition layer 14 .

[0186] Optionally, the first isolation structure 151 and the second isolation structure 152 are both disposed on a side of the pixel definition structure 141 away from the array substrate 10 .

[0187] For example, the pixel definition structure 141 covers the edge of the corresponding first electrode 21 , and the isolation structure 15 is disposed on a side of the pixel definition structure 141 away from the array substrate 10 . The pixel definition structure 141 is made of insulating material to prevent the isolation structure 15 from short-circuiting with the first electrode 21 .

[0188] In some embodiments, Figures 1 to 3 ,or Figures 4 to 6 As shown, the plurality of light emitting units 230 include a first light emitting unit 231 and a second light emitting unit 232 that are adjacently disposed, and the light emitted by the first light emitting unit 231 and the second light emitting unit 232 are at least partially different.

[0189] For example, in some embodiments, the display panel 100 may include a plurality of pixels, the pixels including a first light emitting unit 231 and a second light emitting unit 232, the first light emitting unit 231 and the second light emitting unit 232 including at least partially different sub-pixels, so that the display panel 100 can display various colors.

[0190] For example, in some embodiments, one of the two sub-pixels in the first light-emitting unit 231 emits light of different colors from the two sub-pixels in the second light-emitting unit 232. For example, in some other embodiments, both of the two sub-pixels in the first light-emitting unit 231 emit light of different colors from the two sub-pixels in the second light-emitting unit 232.

[0191] In some embodiments, Figures 1 to 3 ,or Figures 4 to 6 As shown, in at least one of the first light-emitting unit 231 and the second light-emitting unit 232 , the light-emitting efficiency of the first sub-pixel 20 is greater than the light-emitting efficiency of the second sub-pixel 30 .

[0192] For example, in some embodiments, a sub-pixel with low luminous efficiency is set as the second sub-pixel 30, and the light of the first sub-pixel 20 is emitted through the second sub-pixel 30, and the light of the second sub-pixel 30 is directly emitted on the side away from the first sub-pixel 20, so that the light of the sub-pixel with low luminous efficiency is directly emitted to avoid attenuation through other sub-pixels.

[0193] Optionally, in some embodiments, Figures 1 to 3 ,or Figures 4 to 6 As shown, in at least one of the first light-emitting unit 231 and the second light-emitting unit 232 , the light-emitting lifetime of the first sub-pixel 20 is greater than the light-emitting lifetime of the second sub-pixel 30 .

[0194] For example, in some embodiments, a sub-pixel with a short luminous lifetime is set as the second sub-pixel 30, and the light of the second sub-pixel 30 is directly emitted from the side away from the first sub-pixel 20, and the light of the first sub-pixel 20 is emitted through the second sub-pixel 30, that is, the first sub-pixel 20 needs to increase its brightness before the human eye can see the preset brightness. Increasing the brightness of the first sub-pixel 20 will cause the lifetime of the first sub-pixel 20 to decrease. Therefore, the luminous lifetime of the first sub-pixel 20 is greater than the luminous lifetime of the second sub-pixel 30, which can avoid further reduction of the lifetime of the sub-pixel with a short luminous lifetime and improve the life of the display panel 100.

[0195] Optionally, in some embodiments, Figures 1 to 3 ,or Figures 4 to 6 As shown, the first light emitting unit 231 and the second light emitting unit 232 include a red sub-pixel, two green sub-pixels and one blue sub-pixel.

[0196] In some embodiments, the plurality of light-emitting units 230 include a first light-emitting unit 231 and a second light-emitting unit 232 that are adjacently disposed, the first light-emitting unit 231 and the second light-emitting unit 232 include a red sub-pixel, two green sub-pixels and one blue sub-pixel, one of the first sub-pixel 20 and the second sub-pixel 30 in the first light-emitting unit 231 is a green sub-pixel, and one of the first sub-pixel 20 and the second sub-pixel 30 in the second light-emitting unit 232 is a green sub-pixel.

[0197] For example, in some embodiments, Figures 1 to 3 ,or Figures 4 to 6 As shown, one of the first sub-pixel 20 and the second sub-pixel 30 in the first light-emitting unit 231 is a green sub-pixel, and one of the first sub-pixel 20 and the second sub-pixel 30 in the second light-emitting unit 232 is a green sub-pixel.

[0198] For example, two green sub-pixels are located in the first light-emitting unit 231 and the second light-emitting unit 232 , respectively. The first light-emitting unit 231 and the second light-emitting unit 232 include a red sub-pixel and a green sub-pixel, respectively.

[0199] For example, the display panel 100 may be capable of red, green and blue three-color display (RGB three-color display).

[0200] For example, the display panel 100 may include multiple pixels, one pixel includes two green sub-pixels, and the two green sub-pixels are respectively located in the first light-emitting unit 231 and the second light-emitting unit 232, which can increase the number of green sub-pixels in the display panel 100 and improve the resolution of the display panel.

[0201] See also Figures 1 to 3 ,or Figures 4 to 6 .

[0202] Second, see Figures 1 to 3 ,or Figures 4 to 6 The present application provides a display panel 100, which includes an array substrate 10, a plurality of light-emitting units 230, and a plurality of isolation structures 15. The array substrate 10 includes a plurality of driving circuits 13; the light-emitting units 230 include a first sub-pixel 20 and a second sub-pixel 30, which are sequentially stacked on the array substrate 10 in a direction away from the array substrate 10; the plurality of isolation structures 15 include a plurality of first isolation structures 151 and a plurality of second isolation structures 152, a first isolation structure 151 is provided between any two light-emitting units 230 adjacent to each other along a first direction CC, and a second isolation structure 152 is provided between any two light-emitting units 230 adjacent to each other along a second direction DD, and the first direction CC intersects with the second direction DD; the first sub-pixel 20 is electrically connected to the corresponding driving circuit 13 at least through the first isolation structure 151, and the second sub-pixel 30 is electrically connected to the corresponding driving circuit 13 at least through the second isolation structure 152.

[0203] In the embodiment of the present application, on the one hand, the first sub-pixel 20 and the second sub-pixel 30 are sequentially stacked on the array substrate 10 in a direction away from the array substrate 10, so that at least two sub-pixels can be set in the area of ​​one light-emitting unit 230, and at least twice the number of sub-pixels can be set in the same area of ​​the display panel 100, which greatly improves the resolution of the display panel. On the other hand, the first sub-pixel 20 is electrically connected to the corresponding driving circuit 13 at least through the first isolation structure 151, and the second sub-pixel 30 is electrically connected to the corresponding driving circuit 13 at least through the second isolation structure 152. The first sub-pixel 20 and the second sub-pixel 30 are electrically connected to the corresponding driving circuit 13 through the corresponding isolation structure 15 in different directions, so that the first sub-pixel 20 and the second sub-pixel 30 can be independently controlled. On the third hand, the first sub-pixel 20 is connected to the first isolation structure 151 and the second sub-pixel 30 is connected to the second isolation structure 152 in different directions, which makes it easy to implement in the manufacturing method and simplifies the manufacturing process, which will be described in detail later.

[0204] In some embodiments, Figures 1 to 3 ,or Figures 4 to 6 As shown, the first sub-pixel 20 includes a first electrode 21, a first light-emitting layer 22 and a second electrode 23 which are stacked, and the second sub-pixel 30 includes a third electrode 31, a second light-emitting layer and a fourth electrode 33 which are stacked; the second electrode 23 is reused as the third electrode 31, the second electrode 23 is electrically connected to the corresponding driving circuit 13 through the first isolation structure 151, and the fourth electrode 33 is electrically connected to the corresponding driving circuit 13 through the second isolation structure 152.

[0205] See also Figure 7 , Figure 7 A schematic diagram of a display device 200 provided in some embodiments of the present application.

[0206] Third, see Figure 7 The present application provides a display device 200, which includes the display panel 100 of any one of the above items, or the display device 200 includes the display panel 100 having any combination of the above features.

[0207] For example, the display device 200 may be a mobile phone, a laptop computer, a television, etc., but is not limited thereto.

[0208] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0209] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A display panel, characterized in that: include: An array substrate, comprising a plurality of driving circuits; A plurality of light-emitting units, each light-emitting unit comprising a first sub-pixel and a second sub-pixel, wherein the first sub-pixel and the second sub-pixel are sequentially stacked on the array substrate in a direction away from the array substrate; A plurality of isolation structures are provided around at least some of the light-emitting units, and at least one of the first sub-pixel and the second sub-pixel of at least some of the light-emitting units is electrically connected to the corresponding driving circuit through the corresponding isolation structure.

2. The display panel according to claim 1, characterized in that: The plurality of isolation structures include a first isolation structure and a second isolation structure that are spaced apart, the first sub-pixel is electrically connected to the corresponding driving circuit at least through the first isolation structure, and the second sub-pixel is electrically connected to the corresponding driving circuit at least through the second isolation structure; Optionally, the second sub-pixel is electrically connected to the corresponding driving circuit through the first isolation structure and the second isolation structure; Optionally, the first isolation structure is provided between any two adjacent light-emitting units along a first direction, and the second isolation structure is provided between any two adjacent light-emitting units along a second direction, and the first direction intersects the second direction; Optionally, in the first direction, the light emitting units and the first isolation structures are arranged alternately; Optionally, in the second direction, the light emitting units and the second isolation structures are arranged alternately.

3. The display panel according to claim 2, characterized in that: The first sub-pixel includes a first electrode, a first light-emitting layer, and a second electrode that are stacked, and the second sub-pixel includes a third electrode, a second light-emitting layer, and a fourth electrode that are stacked; The second electrode is multiplexed as the third electrode, the second electrode is electrically connected to the corresponding driving circuit through the first isolation structure, and the fourth electrode is electrically connected to the corresponding driving circuit through the second isolation structure; Optionally, the first direction is perpendicular to the second direction.

4. The display panel according to claim 3, characterized in that: The light-emitting unit includes at least one first pixel electrode and at least one second pixel electrode, the driving circuit includes a thin film transistor and a power signal line, the first pixel electrode is electrically connected to the thin film transistor in the corresponding driving circuit, and the second pixel electrode is electrically connected to the power signal line in the corresponding driving circuit; The second electrode is the first pixel electrode, and the first electrode and the fourth electrode are the second pixel electrode; Alternatively, the first electrode and the fourth electrode are the first pixel electrodes, and the second electrode is the second pixel electrode.

5. The display panel according to claim 3, characterized in that: The isolation structure comprises a support portion and a crown portion stacked in sequence on the array substrate, the orthographic projection of the support portion on the array substrate is located within the orthographic projection of the crown portion on the array substrate, and the support portion is a conductive structure; Optionally, the second electrode is connected to the support portion of the first isolation structure; The fourth electrode is connected to the support portion of the second isolation structure; Optionally, the support portion and the crown portion are made of different materials.

6. The display panel according to claim 4, characterized in that: The second electrode is the first pixel electrode, and the first electrode and the fourth electrode are the second pixel electrode; The second electrodes in different light-emitting units are connected to different first isolation structures.

7. The display panel according to claim 6, characterized in that: In the first direction, the first isolation structure connected to the second electrode is located on the same side of the corresponding light emitting unit.

8. The display panel according to claim 6, characterized in that: In the second direction, the fourth electrode in the light-emitting unit is connected to the second isolation structure located at at least one side of the light-emitting unit; Optionally, in the second direction, the fourth electrode in the light emitting unit is connected to the second isolation structure located on two sides of the light emitting unit.

9. The display panel according to claim 8, characterized in that: The second isolation structure is in a strip shape and extends along the first direction. The second isolation structure is connected to the fourth electrodes in a plurality of light emitting units distributed along the first direction.

10. The display panel according to claim 4, characterized in that: The first electrode and the fourth electrode are the first pixel electrodes, and the second electrode is the second pixel electrode; The fourth electrodes in different light-emitting units are connected to different second isolation structures.

11. The display panel according to claim 10, characterized in that: In the second direction, the second isolation structure connected to the fourth electrode is located at a same side of the corresponding light emitting unit.

12. The display panel according to claim 10, characterized in that: In the first direction, the second electrode in the light emitting unit is connected to the first isolation structure located at at least one side of the light emitting unit; Optionally, the second electrode in the light-emitting unit is connected to the first isolation structure located on two sides of the light-emitting unit.

13. The display panel according to claim 12, characterized in that: The first isolation structure is in a strip shape and extends along the second direction. The first isolation structure is connected to the second electrodes in a plurality of light emitting units distributed along the second direction.

14. The display panel according to claim 3, characterized in that: The display panel further comprises a pixel definition layer disposed on the array substrate, and the isolation structure is disposed on a side of the pixel definition layer away from the array substrate; The pixel definition layer includes a pixel definition structure and a pixel opening surrounded by the pixel definition structure, and the light emitting unit is at least partially located in the pixel opening; The first electrode is disposed between the pixel definition structure and the array substrate, the first light emitting layer is disposed on a side of the corresponding first electrode away from the array substrate, and at least partially located in the corresponding pixel opening; Optionally, the first isolation structure and the second isolation structure are both arranged on a side of the pixel definition structure away from the array substrate.

15. The display panel according to any one of claims 1 to 14, characterized in that: The plurality of light-emitting units include a first light-emitting unit and a second light-emitting unit that are adjacently arranged, wherein the first light-emitting unit and the second light-emitting unit include a red sub-pixel, two green sub-pixels and one blue sub-pixel; Optionally, one of the first sub-pixel and the second sub-pixel in the first light-emitting unit is a green sub-pixel, and one of the first sub-pixel and the second sub-pixel in the second light-emitting unit is a green sub-pixel.

16. A display panel, characterized in that: include: An array substrate, comprising a plurality of driving circuits; A plurality of light-emitting units, each light-emitting unit comprising a first sub-pixel and a second sub-pixel, wherein the first sub-pixel and the second sub-pixel are sequentially stacked on the array substrate in a direction away from the array substrate; A plurality of isolation structures, including a plurality of first isolation structures and a plurality of second isolation structures, wherein the first isolation structure is disposed between any two adjacent light-emitting units along a first direction, and the second isolation structure is disposed between any two adjacent light-emitting units along a second direction, and the first direction intersects the second direction; The first sub-pixel is electrically connected to the corresponding driving circuit at least through the first isolation structure, and the second sub-pixel is electrically connected to the corresponding driving circuit at least through the second isolation structure.

17. The display panel according to claim 16, characterized in that: The first sub-pixel includes a first electrode, a first light-emitting layer, and a second electrode that are stacked, and the second sub-pixel includes a third electrode, a second light-emitting layer, and a fourth electrode that are stacked; The second electrode is multiplexed as the third electrode, the second electrode is electrically connected to the corresponding driving circuit through the first isolation structure, and the fourth electrode is electrically connected to the corresponding driving circuit through the second isolation structure.

18. A display device, characterized in that: Comprising the display panel as claimed in any one of claims 1 to 17.

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