Display panel and display device

Abstract

The application 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; a plurality of light emitting units, the light emitting unit comprising a first sub-pixel and a second sub-pixel, the first sub-pixel and the second sub-pixel being sequentially stacked on the array substrate in a direction away from the array substrate; and a plurality of partition structures, the periphery of at least part of the light emitting units being provided with the partition structures, and at least one of the first sub-pixel and the second sub-pixel of at least part of the light emitting units being electrically connected to the corresponding driving circuit through the corresponding partition structure. The application can improve the resolution of the display panel.

Description

TECHNICAL FIELD

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

[0002] OLED (Organic Light Emitting Diode) display panel is one of the hotspots in the field of display panel research at present. The OLED display panel has the advantages of low energy consumption, low cost, self-luminous, wide viewing angle and fast response speed.

[0003] However, in the related art, the resolution of the OLED display panel is difficult to improve. SUMMARY

[0004] Therefore, it is necessary to provide a display panel and a display device for improving 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, the light emitting unit comprising a first sub-pixel and a second sub-pixel, the first sub-pixel and the second sub-pixel being sequentially stacked on the array substrate in a direction away from the array substrate;

[0008] a plurality of isolation structures, at least part of the periphery of the light emitting unit is provided with the isolation structure, and at least one of the first sub-pixel and the second sub-pixel of at least part of the light emitting unit is electrically connected to the corresponding driving circuit through the corresponding isolation structure.

[0009] In some embodiments, the plurality of isolation structures comprises a first isolation structure and a second isolation structure arranged at intervals, the first sub-pixel is electrically connected to the corresponding driving circuit through at least the first isolation structure, and the second sub-pixel is electrically connected to the corresponding driving circuit through at least 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 arranged between any two light emitting units adjacent in a first direction, and the second isolation structure is arranged between any two light emitting units adjacent in a second direction, the first direction intersecting the second direction;

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

[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 comprises a first electrode, a first light emitting layer and a second electrode which are arranged in a stack, and the second sub-pixel comprises a third electrode, a second light emitting layer and a fourth electrode which are arranged in a stack;

[0015] The second electrode is multiplexed as the third electrode, and 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 comprises at least one first pixel electrode and at least one second pixel electrode, the driving circuit comprises 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 comprises a support portion and a crown portion which are arranged in a stack on the array substrate in sequence, a normal projection of the support portion on the array substrate is located within a normal 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, and 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 with the second electrode is located on the same side of the corresponding light emitting unit.

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

[0027] Optionally, in the second direction, the fourth electrode connection in the light emitting unit is located on the second isolation structure on both 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 with the fourth electrode connection 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 electrode, and the second electrode is the second pixel electrode.

[0030] The fourth electrode connection in different light emitting units is connected to different second isolation structures.

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

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

[0033] Optionally, the second electrode connection in the light emitting unit is located on the first isolation structure on both 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 with the second electrode connection 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 comprises 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 arranged between the pixel definition structure and the array substrate, and the first light-emitting layer is arranged 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 includes first and second light-emitting units arranged adjacently, and the first and second light-emitting units include one red sub-pixel, two green sub-pixels, and one blue sub-pixel.

[0040] Optionally, one of the first and second sub-pixels in the first light-emitting unit is a green sub-pixel, and one of the first and second sub-pixels 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 including a plurality of driving circuits;

[0043] A plurality of light-emitting units, the light-emitting units including first and second sub-pixels, the first and second sub-pixels being arranged in sequence 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, the first isolation structure being arranged between any two light-emitting units adjacent in a first direction, the second isolation structure being arranged between any two light-emitting units adjacent in a second direction, and the first direction intersecting 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 arranged in sequence, and the second sub-pixel includes a third electrode, a second light-emitting layer, and a fourth electrode arranged in sequence.

[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 the display panel of any one of the above.

[0049] In the embodiments 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 the area of one light emitting unit can be provided with at least two sub-pixels, and at least twice or more sub-pixels can be provided in the same area of the display panel, greatly improving the resolution of the display panel. In the second aspect, the periphery of at least part of the light emitting units is provided with an isolation structure, and at least one of the first sub-pixel and the second sub-pixel of at least part 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, realizing independent control of the first sub-pixel and the second sub-pixel. On the basis of improving the resolution, the fineness of the image and other image quality can be further improved, and the first sub-pixel and the second sub-pixel are prevented from emitting light at unnecessary times, improving the light emitting efficiency and the life of the first sub-pixel and the second sub-pixel. BRIEF DESCRIPTION OF DRAWINGS

[0050] In order to more clearly illustrate the technical solutions in the embodiments or exemplary embodiments of the present application, the drawings needed to be used in the description of the embodiments or exemplary embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

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

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

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

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

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

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

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

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

[0059] First direction C-C; second direction D-D; 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 part 1501; crown part 1502; first side wall 1501a; second side wall 1501b; third side wall 1501c; fourth side wall 1501d;

[0061] Drive circuit 13; first drive circuit 131; second drive circuit 132; third drive circuit 133;

[0062] First pixel electrode P01; 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 objectives, features and advantages of the present application more apparent, the specific embodiments of the present application will be described in detail below with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of ways other than those specifically described herein, and it is to be understood that the present application is not limited to the specific embodiments described below.

[0065] In the description of the present application, it should be understood that if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0066] In addition, the terms "first", "second", and the like, if any, are used herein for descriptive purposes only and should not be construed as indicating or implying relative importance or identifying the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0067] In the present application, unless otherwise explicitly specified and limited, if the terms "mounting", "connecting", "connecting", "fixing" and the like appear, these terms should be interpreted broadly. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0068] In the present application, unless otherwise explicitly specified and limited, if the first feature is described as "on" or "under" the second feature, etc., it can mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be the first feature directly above or obliquely above the second feature, or it can only mean that the first feature is higher than the second feature in horizontal height. The first feature "below", "below" and "below" the second feature can be the first feature directly below or obliquely below the second feature, or it can only mean that the first feature is lower than the second feature in horizontal height.

[0069] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on another element or there can be a middle element. If an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are only for illustrative purposes and do not represent the only implementation.

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

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

[0072] Please refer to Figures 1 to 3 , Figure 1A partial top view of a first display panel provided for some embodiments of the present application is shown in FIG. 1A. Figure 2 A first partial cross-sectional view of the first display panel provided for some embodiments of the present application is shown in FIG. 1B. Figure 3 A second partial cross-sectional view of the first display panel provided for some embodiments of the present application is shown in FIG. 1C. Figure 2 A partial top view of a second display panel provided for some embodiments of the present application is shown in FIG. 2A. Figure 1 A cross-sectional view along the direction of the dashed line C-C. Figure 3 A partial top view of a second display panel provided for some embodiments of the present application is shown in FIG. 2A. Figure 1 A cross-sectional view along the direction of the dashed line D-D. The direction of the dashed line C-C is a first direction, and the direction of the dashed line D-D is a second direction.

[0073] A partial top view of a second display panel provided for some embodiments of the present application is shown in FIG. 2A. Figures 4 to 6 , Figure 4 A partial top view of a second display panel provided for some embodiments of the present application is shown in FIG. 2A. Figure 5 A first partial cross-sectional view of the second display panel provided for some embodiments of the present application is shown in FIG. 2B. Figure 6 A second partial cross-sectional view of the second display panel provided for some embodiments of the present application is shown in FIG. 2C. Figure 5 A partial top view of a second display panel provided for some embodiments of the present application is shown in FIG. 2A. Figure 4 A cross-sectional view along the direction of the dashed line C-C. Figure 6 A partial top view of a second display panel provided for some embodiments of the present application is shown in FIG. 2A. Figure 4 A cross-sectional view along the direction of the dashed line D-D. The direction of the dashed line C-C is a first direction, and the direction of the dashed line D-D is a second direction.

[0074] Figures 1 to 6 Only part of the structure of the display panel 100 is shown, and the display panel 100 can further include other structures.

[0075] The composition, preparation, etc. of the isolation structure mentioned below are further described in the 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, CN116685174A, for reference.

[0076] In a first aspect, refer to Figures 1 to 3 , or Figures 4 to 6The display panel 100 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 unit 230 includes a first sub-pixel 20 and a second sub-pixel 30, and 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. The periphery of at least part of the light emitting unit 230 is provided with the isolation structure 15, and 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.

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

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

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

[0080] For example, in some embodiments, the first sub-pixel 20 and the second sub-pixel 30 in one light emitting unit 230 can emit light separately, for example, the first sub-pixel 20 emits light while the second sub-pixel 30 does not emit light; for example, the second sub-pixel 30 emits light while 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 can emit light at the same time, for example, the first sub-pixel 20 emits light while the second sub-pixel 30 also emits light.

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

[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 embodiments of the present application, in a 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 the area of one light emitting unit 230 can be provided with at least two sub-pixels, and at least twice the number of sub-pixels can be provided in the same area of the display panel 100, greatly improving the resolution of the display panel. In a second aspect, at least part of the periphery of the light emitting unit 230 is provided with an isolation structure 15, and 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, so that the first sub-pixel 20 and the second sub-pixel 30 can be controlled to emit light independently, realizing independent control of the first sub-pixel 20 and the second sub-pixel 30. 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, improving the light emitting efficiency and the life of the first sub-pixel 20 and the second sub-pixel 30.

[0085] In some embodiments, as shown in Figures 1 to 3 , or Figures 4 to 6 The plurality of isolation structures 15 include a first isolation structure 151 and a second isolation structure 152 arranged at intervals, 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 arranged between any two light emitting units 230 adjacent in a first direction C-C, a second isolation structure 152 is arranged between any two light emitting units adjacent in a second direction D-D, and the first direction C-C intersects the second direction D-D.

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

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

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

[0091] For example, in the first direction C-C, the first isolation structures 151 are arranged in sequence, and the first isolation structures 151 are arranged on one side of the corresponding light emitting units 230. Figures 1 to 3 , or Figures 4 to 6 Although the first isolation structures 151 and the second isolation structures 152 are filled with different colors to distinguish, the first isolation structures 151 and the second isolation structures 152 can be arranged in the same layer, manufactured by the same process, and made of the same material.

[0092] For example, in the first direction C-C, the first isolation structures 151 are arranged in sequence, and the first isolation structures 151 are arranged on one side of the corresponding light emitting units 230.

[0093] For example, in the second direction D-D, the second isolation structures 152 are arranged in sequence, and the second isolation structures 152 are arranged on one side of the corresponding light emitting units 230.

[0094] For example, the first isolation structures 151 and the second isolation structures 152 are arranged in intervals, and the first isolation structures 151 and the second isolation structures 152 are arranged in insulation.

[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 arranged on one side of the first direction C-C of the light emitting unit 230; 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 arranged on one side of the second direction D-D of the light emitting unit 230. 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 respectively electrically connected to the corresponding driving circuit 13 through the corresponding isolation structure 15 in different directions. On the one hand, 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 by the first sub-pixel 20 and the second isolation structure 152 connected by the second sub-pixel 30 are in different directions, which is easy to realize 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 arranged in layers, and the second sub-pixel 30 includes a third electrode 31, a second light emitting layer 32 and a fourth electrode 33 arranged in layers; the second electrode 23 is multiplexed as the third electrode 31, and 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 can be an anode, and the other can be a cathode.

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

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

[0102] For example, the first electrode 21 and the second electrode 23 of the first sub-pixel 20 can further include other film layers in addition to the first emission layer 22, 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 block layer (HBL), and an electron block layer (EBL).

[0103] For example, the third electrode 31 and the fourth electrode 33 of the second sub-pixel 30 can further include other film layers in addition to the second emission layer 32, 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 block layer (HBL), and an electron block layer (EBL).

[0104] For example, the second electrode 23 is multiplexed as the third electrode 31, reducing 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, which can realize independent control of the first sub-pixel 20 and the second sub-pixel 30, and also reduces the types / number of isolation structures 15.

[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 a via in the array composite layer 12, and the first electrode 21 does not need to provide an electrical signal through the first isolation structure 151 and the second isolation structure 152, therefore, the first electrode 21 is spaced apart from the first isolation structure 151 and the second isolation structure 152, which can avoid short circuiting of different electrodes in the light emitting unit 230.

[0107] Optionally, in some embodiments, the first direction C-C is perpendicular to the second direction D-D.

[0108] For example, the first direction C-C is perpendicular to the second direction D-D, one of the second electrode and the fourth electrode is formed by an evaporation process, so that the first sub-pixel 20 connecting the first isolation structure 151 and the second sub-pixel 30 connecting the second isolation structure 152 are in different directions, which can avoid the short circuit caused by the overlap of the second electrode and the fourth electrode.

[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 embodiments, when the driving circuit 13 includes a thin film transistor, the driving circuit 13 can 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 can be a VSS signal line (cathode power signal line), but is not limited thereto, for example, the power signal line can 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] For example, the first pixel electrode P01 is electrically connected to the thin film transistor in the corresponding driving circuit 13, that is, the first pixel electrode P01 can provide and control its electrical signal through 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, and the electrical signals of the second pixel electrodes P02 in at least part of the light emitting units 230 are the same in a frame, at this time, the plurality of second pixel electrodes P02 with the same electrical signal in different light emitting units 230 can be electrically connected to each other, so as to reduce the number and complexity of the corresponding power signal lines.

[0115] For example, in some embodiments, as Figures 1 to 3As shown, the second electrode 23 is the first pixel electrode P01, the first electrode 21 and the fourth electrode 33 are the second pixel electrode P02, the first sub-pixel 20 can be independently controlled and independently emit light, and the second sub-pixel 30 can be independently controlled and independently emit light.

[0116] For example, in some other embodiments, as Figures 4 to 6 As shown, the first electrode 21 and the fourth electrode 33 are the first pixel electrode P01, the second electrode 23 is the second pixel electrode P02, the first sub-pixel 20 can be independently controlled and independently emit light, and the second sub-pixel 30 can be independently controlled and independently emit light.

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

[0118] In some embodiments, the isolation structure 15 includes a support portion 1501 and a crown portion 1502 which are sequentially stacked 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 with the support portion 1501 of the first isolation structure 151, and the fourth electrode 33 is connected with the support portion 1501 of the second isolation structure 152.

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

[0121] For example, the fourth electrode 33 is connected with 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 support portion 1501 and the crown portion 1502 are made of different materials.

[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 the end (top end) of the support portion 1501 facing the crown portion 1502 on the substrate 11 is 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 configured to have a shape of being wider at the top and narrower at the bottom, so that the isolation structure 15 can block the light-emitting layer or the hole transport layer HTL and other film layers of the adjacent light-emitting unit 230, so that the isolation structure 15 can block the second electrode 23 and / or the fourth electrode 33 of the adjacent light-emitting unit 230, and the expensive fine metal mask (FMM) can be saved, thereby reducing the manufacturing cost of the display panel. At the same time, after the fine metal mask (FMM) is not used, the light-emitting area of the sub-pixel is not limited by the opening of the fine metal mask, and 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 can have a multi-layer stacked structure, which facilitates the use of different materials respectively. For example, the support portion 1501 is designed to be a conductive material, and the crown portion 1502 is designed to be an insulating material. For example, the support portion 1501 is designed to be a conductive material, and the crown portion 1502 is designed to be a conductive material, but the etching rate of the support portion 1501 is greater than that of the crown portion 1502. For example, the support portion 1501 and the crown portion 1502 can be configured as 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 one 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 can be silver, copper, titanium, aluminum, etc. The metal oxide can 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] For example, the material of the crown portion 1502 includes titanium or molybdenum.

[0128] For example, in some embodiments, the stacked structure of the isolation structure 15 can be titanium / aluminum / titanium or molybdenum / aluminum / molybdenum. By configuring the three-layer metal layer in a stacked manner, the resistance of the isolation structure 15 can be reduced, thereby reducing the power consumption of the display panel 100.

[0129] Please refer to Figures 1 to 3 .

[0130] In some embodiments, as 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 electrodes P02; the second electrodes 23 in different light-emitting units 230 are connected to different first isolation structures 151.

[0131] For example, such as Figures 1 to 3 As shown, the second electrode 23 is reused as the third electrode 31, and the multiple 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 electrically connected between the first electrode 21 and the driving chip. For example, the first electrode 21 contains a cathode power signal (VSS signal).

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

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

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

[0137] For example, in some embodiments, at least a portion of the fourth electrodes 33 of the light-emitting units 230 are interconnected and electrically connected to the driver chip via power signal lines 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, which allows the second electrodes 23 in different light-emitting units 230 to 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 the electrical signals.

[0139] Optionally, such as Figures 1 to 3 As shown, in the first direction CC, the first isolation structure 151 connected to the second electrode 23 is located on 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 first isolation structure 151 adjacent to the light emitting unit 230 on one side, and the second electrodes 23 in different light emitting units 230 are connected to the first isolation structures 151 adjacent to the corresponding light emitting units 230 on the same side.

[0141] For example, as shown in FIG. 6, in one aspect, the second electrode 23 is the first pixel electrode P01, and thus the second electrode 23 in the light emitting unit 230 is connected to the first isolation structure 151 adjacent to the light emitting unit 230 on one side, so that the second electrode 23 in one light emitting unit 230 is controlled by the thin film transistor in one second driving circuit 132 to switch the electrical signal of the light emitting unit 230. Figures 1 to 3 For example, as shown in FIG. 6, in one aspect, the second electrode 23 is the first pixel electrode P01, and thus the second electrode 23 in the light emitting unit 230 is connected to the first isolation structure 151 adjacent to the light emitting unit 230 on one side, so that the second electrode 23 in one light emitting unit 230 is controlled by the thin film transistor in one second driving circuit 132 to switch the electrical signal of the light emitting unit 230.

[0142] For example, as shown in FIG. 6, in one aspect, the second electrode 23 is the first pixel electrode P01, and thus the second electrode 23 in the light emitting unit 230 is connected to the first isolation structure 151 adjacent to the light emitting unit 230 on one side, so that the second electrode 23 in one light emitting unit 230 is controlled by the thin film transistor in one second driving circuit 132 to switch the electrical signal of the light emitting unit 230. Figures 1 to 3 For example, as shown in FIG. 6, in one aspect, the second electrode 23 is the first pixel electrode P01, and thus the second electrode 23 in the light emitting unit 230 is connected to the first isolation structure 151 adjacent to the light emitting unit 230 on one side, so that the second electrode 23 in one light emitting unit 230 is controlled by the thin film transistor in one second driving circuit 132 to switch the electrical signal of the light emitting unit 230.

[0143] For example, as shown in FIG. 6, in one aspect, the second electrode 23 is the first pixel electrode P01, and thus the second electrode 23 in the light emitting unit 230 is connected to the first isolation structure 151 adjacent to the light emitting unit 230 on one side, so that the second electrode 23 in one light emitting unit 230 is controlled by the thin film transistor in one second driving circuit 132 to switch the electrical signal of the light emitting unit 230. Figure 2 For example, as shown in FIG. 6, in one aspect, the second electrode 23 is the first pixel electrode P01, and thus the second electrode 23 in the light emitting unit 230 is connected to the first isolation structure 151 adjacent to the light emitting unit 230 on one side, so that the second electrode 23 in one light emitting unit 230 is controlled by the thin film transistor in one second driving circuit 132 to switch the electrical signal of the light emitting unit 230.

[0144] For example, as shown in FIG. 6, in one aspect, the second electrode 23 is the first pixel electrode P01, and thus the second electrode 23 in the light emitting unit 230 is connected to the first isolation structure 151 adjacent to the light emitting unit 230 on one side, so that the second electrode 23 in one light emitting unit 230 is controlled by the thin film transistor in one second driving circuit 132 to switch the electrical signal of the light emitting unit 230. Figure 2 For example, as shown in FIG. 6, in one aspect, the second electrode 23 is the first pixel electrode P01, and thus the second electrode 23 in the light emitting unit 230 is connected to the first isolation structure 151 adjacent to the light emitting unit 230 on one side, so that the second electrode 23 in one light emitting unit 230 is controlled by the thin film transistor in one second driving circuit 132 to switch the electrical signal of the light emitting unit 230.

[0145] For example, as shown in FIG. 6, in one aspect, the second electrode 23 is the first pixel electrode P01, and thus the second electrode 23 in the light emitting unit 230 is connected to the first isolation structure 151 adjacent to the light emitting unit 230 on one side, so that the second electrode 23 in one light emitting unit 230 is controlled by the thin film transistor in one second driving circuit 132 to switch the electrical signal of the light emitting unit 230.Figures 1 to 3 As shown, in the second direction D-D, the fourth electrode 33 in the light emitting unit 230 is connected to the second isolation structure 152 located on at least one side of the light emitting unit 230.

[0146] Optionally, in some embodiments, as Figures 1 to 3 As shown, in the second direction D-D, 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, as Figures 1 to 3 As shown, in some embodiments, the second electrode 23 is the first pixel electrode P01, the first pixel electrode P01 is electrically connected to the thin film transistor in the corresponding driving circuit 13, the second electrode 23 can be independently controlled by the thin film transistor, the fourth electrode 33 is the second pixel electrode P02, and the plurality of second pixel electrodes P02 with the same electrical signal in at least part of the 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, as Figures 1 to 3 As shown, the support part 1501 of the second isolation structure 152 includes a third side wall 1501c and a fourth side wall 1501d arranged away from each other in the second direction D-D, the third side walls 1501c in different second isolation structures 152 are directed to 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 directed to the light emitting unit 230.

[0149] For example, in some embodiments, as Figures 1 to 3 As shown, the fourth electrode 33 in the light emitting unit 230 is connected to the third side wall 1501c and the fourth side wall 1501d in the second isolation structure 152 adjacent to both sides of the light emitting unit 230 and directed to 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 in the second isolation structure 152 adjacent to one side of the light emitting unit 230 and directed to the light emitting unit 230, which only needs one angle evaporation to form the fourth electrode 33, simplifying the production process.

[0151] For example, in some other embodiments, the fourth electrode 33 in the light emitting unit 230 is connected to the third sidewall 1501c and the fourth sidewall 1501d in the second isolation structure 152 adjacent to two sides of the light emitting unit 230, and the fourth electrode 33 is formed by different angle evaporation, to ensure the tightness of the connection between the fourth electrode 33 and the second isolation structure 152.

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

[0153] In some embodiments, as shown in Figures 1 to 3 the second isolation structure 152 is in a strip shape and extends along the first direction C-C, and the second isolation structure 152 is connected to the fourth electrode 33 in the light emitting unit 230 distributed along the first direction C-C.

[0154] For example, as shown in Figures 1 to 3 in some embodiments, the second electrode 23 is the first pixel electrode P01, the first pixel electrode P01 is electrically connected to the thin film transistor in the corresponding driving circuit 13, the second electrode 23 can be independently controlled by the thin film transistor, the fourth electrode 33 is the second pixel electrode P02, and the plurality of second pixel electrodes P02 with the same electrical signal in at least part of the 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 4 to 6 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 other 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] Please refer to Figures 4 to 6 .

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

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

[0160] For example, as shown in FIG. 1, 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. Figures 4 to 6

[0161] For example, the first driving circuit 131 and the second driving circuit 132 each include a thin film transistor, and the first electrode 21 controls the switching of the electrical signal thereof through the thin film transistor in the first driving circuit 131. The fourth electrode 33 controls the switching of the electrical signal thereof 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 part of the light emitting units 230 are in communication with each other and are 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 be controlled by the electrical signal provided through different second isolation structures 152.

[0165] For example, as shown in FIG. 1, 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 be controlled by the electrical signal provided through different second isolation structures 152. Figures 4 to 6

[0166] For example, as shown in FIG. 1, 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 be controlled by the electrical signal provided through different second isolation structures 152. Figures 4 to 6

[0167] For example, as shown in FIG. 1, 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 be controlled by the electrical signal provided through different second isolation structures 152. Figures 4 to 6 ​​​As shown, on the one hand, the fourth electrode 33 is the first pixel electrode P01. Therefore, the fourth electrodes 33 in different light-emitting units 230 are connected to the adjacent second isolation structures 152 on the same side of the light-emitting unit 230, so that the fourth electrode 33 of one light-emitting unit 230 can be individually controlled by the thin-film transistor in the second driving circuit 132 to switch its electrical signal. On the other hand, the fourth electrode 33 can be formed by a vapor deposition process. By controlling the vapor deposition angle of the fourth electrode 33 formed by the vapor deposition process, the fourth electrode 33 can be connected to the adjacent second isolation structures 152 on only one side. Therefore, the fourth electrodes 33 of different light-emitting units 230 are connected to the adjacent second isolation structures 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, such as Figure 6 As shown, the support portion 1501 of the second isolation structure 152 includes a third sidewall 1501c and a fourth sidewall 1501d disposed opposite to each other in the second direction DD, and the third sidewall 1501c in different second isolation structures 152 faces the same direction; the fourth electrode 33 in the light-emitting unit 230 is connected to one of the third sidewall 1501c and the fourth sidewall 1501d in the second isolation structure 152 adjacent to the light-emitting unit 230 and facing the light-emitting unit 230.

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

[0170] For example, in some other implementations ( Figures 4 to 6 (Not shown) The fourth electrode 33 in the light-emitting unit 230 is connected to the fourth sidewall 1501d of the second isolation structure 152 adjacent to the side of the light-emitting unit 230 and facing the light-emitting unit 230, so that the fourth electrode 33 of the light-emitting unit 230 is individually controlled by the thin film transistor in the third driving circuit 133 to switch its electrical signal.

[0171] In some implementations, such as 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 on at least 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, as shown in Figures 4 to 6 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. The fourth electrode 33 can be independently controlled by the thin film transistor. The second electrode 23 is the second pixel electrode P02. The plurality of second pixel electrodes P02 in the at least partially different light emitting units 230 with the same electrical signal 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 support part 1501 of the first isolation structure 151 includes a first side wall 1501a and a second side wall 1501b arranged away from each other in the first direction C-C. 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 the first side wall 1501a or the second side wall 1501b in the at least one first isolation structure 151 adjacent to 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 is connected to 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 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 in 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 evaporation is required to form the fourth electrode 33, simplifying 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 in 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 evaporation is required to form the fourth electrode 33, simplifying the production process.

[0178] For example, in some other embodiments, the second electrode 23 in the light emitting unit 230 is connected to 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. Different angle evaporation is required to form the second electrode 23 to ensure the tightness of the connection between the second electrode 23 and the second isolation structure 152.

[0179] For example, as shown in Figures 4 to 6As shown, the first isolation structure 151 is strip-shaped and extends along the second direction DD. The first isolation structure 151 is connected to the second electrode 23 in a plurality of light-emitting units 230 distributed along the second direction DD.

[0180] For example, such as Figures 4 to 6 As shown, the fourth electrode 33 is the first pixel electrode P01. 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. At least some of the second pixel electrodes P02 with the same electrical signal 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.

[0181] For example, in some embodiments, the orthographic projection of the second isolation structure 152 onto the array substrate 10 is island-shaped or block-shaped.

[0182] It should be noted that, as Figures 1 to 3 As shown, the first electrode 21 can be either an anode or a cathode, the second electrode 23 is either an anode or a cathode, and the fourth electrode 33 is either an anode or a cathode that is different from the second electrode 23. For example, the second electrode 23 is an anode and the fourth electrode 33 is a cathode.

[0183] Please see Figures 4 to 6 ,or Figures 1 to 3 .

[0184] In some implementations, such as Figures 4 to 6 ,or Figures 1 to 3 As shown, the display panel 100 also includes a pixel definition layer 14 disposed on the array substrate 10, and an isolation structure 15 disposed 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 disposed between the pixel definition structure 141 and the array substrate 10, and the first light-emitting layer 22 is disposed 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 a pixel definition layer 14.

[0186] Optionally, both the first isolation structure 151 and the second isolation structure 152 are disposed on the 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, the isolation structure 15 is arranged on the side of the pixel definition structure 141 away from the array substrate 10, and the pixel definition structure 141 is an insulating material, which can prevent the isolation structure 15 from short-circuiting with the first electrode 21.

[0188] In some embodiments, as shown in Figures 4 to 6 , or Figures 1 to 3 The plurality of light emitting units 230 includes the first light emitting unit 231 and the second light emitting unit 232 arranged adjacently, and at least part of the light emitted by the first light emitting unit 231 and the second light emitting unit 232 is different.

[0189] For example, in some embodiments, the display panel 100 can include a plurality of pixels, and each pixel includes the first light emitting unit 231 and the second light emitting unit 232, and the first light emitting unit 231 and the second light emitting unit 232 include 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 and the two sub-pixels in the second light emitting unit 232 emit light of different colors. For example, in some other embodiments, both of the two sub-pixels in the first light emitting unit 231 and the two sub-pixels in the second light emitting unit 232 emit light of different colors.

[0191] In some embodiments, as shown in Figures 4 to 6 , or Figures 1 to 3 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 that of the second sub-pixel 30.

[0192] For example, in some embodiments, the sub-pixel with low light emitting efficiency is arranged as the second sub-pixel 30, the light of the first sub-pixel 20 passes through the second sub-pixel 30 and is emitted, 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 light emitting efficiency is directly emitted, avoiding attenuation through other sub-pixels.

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

[0194] In some embodiments, the sub-pixel with a short light-emitting life is arranged as the second sub-pixel 30, light of the second sub-pixel 30 is directly emitted on a side away from the first sub-pixel 20, light of the first sub-pixel 20 is emitted through the second sub-pixel 30, that is, the first sub-pixel 20 needs to improve the brightness so that the preset brightness can be seen by the human eye, and the improvement of the brightness of the first sub-pixel 20 will cause the life of the first sub-pixel 20 to decrease. Therefore, the light-emitting life of the first sub-pixel 20 is longer than the light-emitting life of the second sub-pixel 30, the life of the sub-pixel with a short light-emitting life can be further reduced, and the life of the display panel 100 is improved.

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

[0196] In some embodiments, the plurality of light-emitting units 230 include the first light-emitting unit 231 and the second light-emitting unit 232 arranged adjacently, the first light-emitting unit 231 and the second light-emitting unit 232 include one 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] In some embodiments, as shown in Figures 4 to 6 , or Figures 1 to 3 , 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] In some embodiments, the two green sub-pixels are respectively located in the first light-emitting unit 231 and the second light-emitting unit 232, and the first light-emitting unit 231 and the second light-emitting unit 232 respectively include a red sub-pixel and a green sub-pixel.

[0199] In some embodiments, the display panel 100 can be a red-green-blue three-color display (RGB three-color display).

[0200] In some embodiments, the display panel 100 can include a plurality of 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, so that the number of green sub-pixels in the display panel 100 is increased, and the resolution of the display panel is improved.

[0201] Please refer to Figures 4 to 6 , or Figure 7 .

[0202] In a second aspect, referring to Figure 7 , or Figure 7 , the application provides a display panel 100, which comprises an array substrate 10, a plurality of light-emitting units 230, and a plurality of isolation structures 15. The array substrate 10 comprises a plurality of driving circuits 13; the light-emitting unit 230 comprises a first sub-pixel 20 and a second sub-pixel 30, which are sequentially and laminatedly arranged on the array substrate 10 in a direction away from the array substrate 10; the plurality of isolation structures 15 comprises a plurality of first isolation structures 151 and a plurality of second isolation structures 152, the first isolation structure 151 is arranged between any two light-emitting units 230 adjacent in a first direction C-C, the second isolation structure 152 is arranged between any two light-emitting units 230 adjacent in a second direction D-D, and the first direction C-C intersects the second direction D-D; the first sub-pixel 20 is electrically connected to the corresponding driving circuit 13 through at least the first isolation structure 151, and the second sub-pixel 30 is electrically connected to the corresponding driving circuit 13 through at least the second isolation structure 152.

[0203] In the embodiments of the application, on the one hand, the first sub-pixel 20 and the second sub-pixel 30 are sequentially and laminatedly arranged on the array substrate 10 in a direction away from the array substrate 10, so that the area of one light-emitting unit 230 can be provided with at least two sub-pixels, and at least twice or more sub-pixels can be arranged in the same area of the display panel 100, greatly improving the resolution of the display panel. On the other hand, the first sub-pixel 20 is electrically connected to the corresponding driving circuit 13 through at least the first isolation structure 151, and the second sub-pixel 30 is electrically connected to the corresponding driving circuit 13 through at least the second isolation structure 152, and the first sub-pixel 20 and the second sub-pixel 30 are respectively 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 is easy to realize in the manufacturing method and simplifies the manufacturing process, which will be described in detail later.

[0204] In some embodiments, as shown in ​ , or ​ , the first sub-pixel 20 comprises a first electrode 21, a first light-emitting layer 22, and a second electrode 23 which are laminatedly arranged, and the second sub-pixel 30 comprises a third electrode 31, a second light-emitting layer, and a fourth electrode 33 which are laminatedly arranged; the second electrode 23 is multiplexed 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] Referring to ​ ,​ This is a schematic diagram of a display device 200 provided for some embodiments of this application.

[0206] Thirdly, please refer to ​ This application provides a display device 200, which includes a display panel 100 of any one of the above features, or a display panel 100 that combines any of the above features.

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

[0208] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0209] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A display panel, characterized by, The display panel comprises: an array substrate comprising a plurality of driving circuits; a plurality of light emitting units, the light emitting units comprising a first sub-pixel and a second sub-pixel, the first sub-pixel and the second sub-pixel being sequentially stacked on the array substrate in a direction away from the array substrate; a plurality of isolation structures, at least part of the periphery of the light emitting units being provided with the isolation structures; wherein the plurality of isolation structures comprise first isolation structures and second isolation structures arranged at intervals, and the first sub-pixel of at least part of the light emitting units is electrically connected to the corresponding driving circuit through at least the first isolation structure, and the second sub-pixel is electrically connected to the corresponding driving circuit through at least the second isolation structure.

2. The display panel of claim 1, wherein: the second sub-pixel is electrically connected to the corresponding driving circuit through the first isolation structure and the second isolation structure.

3. The display panel of claim 1, wherein: the first isolation structure is arranged between any two adjacent light emitting units in a first direction, the second isolation structure is arranged between any two adjacent light emitting units in a second direction, and the first direction intersects the second direction.

4. The display panel of claim 3, wherein: in the first direction, the light emitting units and the first isolation structures are alternately arranged; and / or in the second direction, the light emitting units and the second isolation structures are alternately arranged.

5. The display panel of claim 3, wherein, the first sub-pixel comprises a first electrode, a first light emitting layer and a second electrode which are sequentially stacked, and the second sub-pixel comprises a third electrode, a second light emitting layer and a fourth electrode which are sequentially 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.

6. The display panel of claim 3, wherein: the first direction is perpendicular to the second direction.

7. The display panel of claim 5, wherein, the light emitting unit comprises at least one first pixel electrode and at least one second pixel electrode, the driving circuit comprises 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 electrode, and the second electrode is the second pixel electrode.

8. The display panel of claim 5, wherein, the isolation structure comprises a support portion and a crown portion which are sequentially stacked 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.

9. The display panel of claim 8, wherein: the second electrode is connected to the support portion of the first isolation structure, and the fourth electrode is connected to the support portion of the second isolation structure.

10. The display panel of claim 8, wherein the support portion and the crown portion are made of different materials.

11. The display panel of claim 7, wherein, 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.

12. The display panel of claim 11, wherein, 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.

13. The display panel of claim 11, wherein, 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.

14. The display panel of claim 13, wherein in the second direction, the fourth electrode in the light emitting unit is connected to the second isolation structure located on both sides of the light emitting unit.

15. The display panel of claim 13, wherein, 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 electrode in a plurality of light emitting units distributed along the first direction.

16. The display panel of claim 7, wherein, the first electrode and the fourth electrode are the first pixel electrode, and the second electrode is the second pixel electrode. the fourth electrodes in different light emitting units are connected to different second isolation structures.

17. The display panel of claim 16, wherein, in the second direction, the second isolation structure connected to the fourth electrode is located on the same side of the corresponding light emitting unit.

18. The display panel of claim 16, wherein, 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.

19. The display panel of claim 18, wherein the second electrode in the light emitting unit is connected to the first isolation structure located on both sides of the light emitting unit.

20. The display panel of claim 18, wherein, 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 electrode in a plurality of light emitting units distributed along the second direction.

21. The display panel of claim 5, wherein, 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 comprises 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, and 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.

22. The display panel of claim 21, wherein the first isolation structure and the second isolation structure are both disposed on a side of the pixel definition structure away from the array substrate.

23. The display panel of any one of claims 1-22, wherein, The plurality of light emitting units comprises a first light emitting unit and a second light emitting unit disposed adjacently, and the first light emitting unit and the second light emitting unit comprise one red sub-pixel, two green sub-pixels, and one blue sub-pixel.

24. The display panel of claim 23, wherein 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.

25. A display panel comprising: Comprising: An array substrate comprising a plurality of drive circuits; A plurality of light emitting units, the light emitting units comprising first sub-pixels and second sub-pixels, the first sub-pixels and the second sub-pixels being sequentially stacked on the array substrate in a direction away from the array substrate; A plurality of isolation structures comprising a plurality of first isolation structures and a plurality of second isolation structures, the first isolation structures being provided between any two adjacent light emitting units in a first direction, and the second isolation structures being provided between any two adjacent light emitting units in a second direction, the first direction intersecting the second direction; The first sub-pixels are electrically connected to corresponding drive circuits at least through the first isolation structures, and the second sub-pixels are electrically connected to corresponding drive circuits at least through the second isolation structures.

26. The display panel of claim 25, wherein, The first sub-pixels comprise first electrodes, first light emitting layers, and second electrodes which are stacked, and the second sub-pixels comprise third electrodes, second light emitting layers, and fourth electrodes which are stacked; The second electrodes are multiplexed as the third electrodes, the second electrodes are electrically connected to corresponding drive circuits through the first isolation structures, and the fourth electrodes are electrically connected to corresponding drive circuits through the second isolation structures.

27. A display device comprising: A display panel as claimed in any one of claims 1 to 26.

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