Display panel and display device

Abstract

The invention discloses a display panel and a display device. The display panel comprises a substrate, a plurality of sub-pixels, a pixel definition layer, an isolation structure and a plurality of power signal ends, each sub-pixel comprises a first electrode, a second electrode and a light-emitting function layer arranged between the first electrode and the second electrode, the first electrode and the second electrode are arranged in a stacked mode, and the pixel definition layer is arranged on the side, away from the substrate, of the second electrode. The pixel defining layer comprises a pixel defining part and a pixel opening defined by the pixel defining part, and at least part of the second electrode is exposed out of the pixel opening; the isolation structure is arranged on one side of the substrate, at least part of the isolation structure surrounds the pixel opening, and the isolation structure is electrically connected with the first electrode; wherein the first electrodes of the sub-pixels with the same color are electrically connected with the same power supply signal end through the isolation structures, and the sub-pixels with at least two different colors are electrically connected with different power supply signal ends through the isolation structures, so that the power consumption can be reduced, and the service life of the display panel can be prolonged.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application 202310783115.1, filed on June 28, 2023, entitled “Display Panel and Display Device,” and the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present invention belongs to the field of display technology, and in particular relates to a display panel and a display device. Background Art

[0004] Flat display panels such as Liquid Crystal Display (LCD) panels, Organic Light Emitting Display (OLED) panels and display panels using Light Emitting Diode (LED) devices are widely used in various consumer electronic products such as mobile phones, televisions, personal digital assistants, digital cameras, laptops, desktop computers, etc. due to their advantages such as high image quality, power saving, thin body and wide application range, becoming the mainstream in display devices.

[0005] Currently, how to improve the performance of display panels has become an urgent problem to be solved. Summary of the invention

[0006] An object of the present invention is to provide a display panel and a display device, aiming to solve the problem of high power consumption of existing display panels.

[0007] The first aspect of the present invention provides a display panel. The display panel includes a substrate, a plurality of sub-pixels, a pixel definition layer, an isolation structure, and a plurality of power signal terminals. Each sub-pixel includes a first electrode, a second electrode, and a light-emitting functional layer disposed between the first electrode and the second electrode. The pixel definition layer is disposed on the side of the second electrode away from the substrate. The pixel definition layer includes a pixel defining portion and a pixel opening formed by the pixel defining portion. The second electrode is at least partially exposed by the pixel opening. The isolation structure is disposed on one side of the substrate. The isolation structure is at least partially disposed around the pixel opening and is electrically connected to the first electrode. The plurality of power signal terminals are connected to voltage power signals. Among them, the first electrodes of the sub-pixels of the same color are electrically connected to the same power signal terminal through the isolation structure, and at least two sub-pixels of different colors are electrically connected to different power signal terminals through the isolation structure.

[0008] In some embodiments, the display panel further includes a first power line, a second power line, and a third power line respectively connected to different power signal terminals, the sub-pixels include first sub-pixels, second sub-pixels, and third sub-pixels of different colors, the isolation structure includes a plurality of first sub-isolation structures, a plurality of second sub-isolation structures, and a plurality of third sub-isolation structures, the first sub-isolation structure is electrically connected to the first electrode of the first sub-pixel and to the first power line, the second sub-isolation structure is electrically connected to the first electrode of the second sub-pixel and to the second power line; the third sub-isolation structure is electrically connected to the first electrode of the third sub-pixel and to the third power line;

[0009] Preferably, the first sub-isolation structures adjacent to each other in the first direction are connected to each other, the second sub-isolation structures adjacent to each other in the first direction are connected to each other, and the third sub-isolation structures adjacent to each other in the first direction are connected to each other;

[0010] Preferably, the display panel further comprises an array layer arranged on one side of the substrate, and the first power line, the second power line and the third power line are respectively arranged on the array layer.

[0011] In some embodiments, the display panel further includes a plurality of first connection parts, a plurality of second connection parts, and a plurality of third connection parts, the first sub-isolation structures are connected via the first connection parts, the second sub-isolation structures are connected via the second connection parts, the third sub-isolation structures are connected via the third connection parts, and the first connection parts, the second connection parts, and the third connection parts are insulated from each other;

[0012] Preferably, the first connection portion, the second connection portion and the third connection portion all extend in the same direction and are connected to different power lines;

[0013] Preferably, in a direction perpendicular to the substrate, the cross-sections of the first connecting portion, the second connecting portion and the third connecting portion are respectively the same as the cross-section shape of the isolation structure;

[0014] Preferably, the isolation structure is an integrated structure, and at least one of the first connection part, the second connection part and the third connection part is arranged on the same layer as the isolation structure;

[0015] or,

[0016] The isolation structure comprises a first isolation part and a second isolation part, the first isolation part is located on the substrate, the second isolation part is located on a side of the first isolation part away from the substrate, and the orthographic projection of the first isolation part on the substrate is located within the orthographic projection of the second isolation part on the substrate;

[0017] At least one of the first connection portion, the second connection portion, and the third connection portion includes a first sub-connection portion and a second sub-connection portion, the first sub-connection portion is located on the substrate, the second sub-connection portion is located on a side of the first sub-connection portion away from the substrate, and an orthographic projection of the first sub-connection portion on the substrate is located within an orthographic projection of the second sub-connection portion on the substrate;

[0018] The first isolating portion and the first sub-connecting portion are arranged on the same layer, and the second isolating portion and the second sub-connecting portion are arranged on the same layer.

[0019] In some embodiments, the first sub-pixels are arranged in sequence along a first direction to form a first sub-pixel group, and the first connecting portion extends along the first direction;

[0020] Preferably, the second sub-pixels and the third sub-pixels are alternately arranged along the first direction to form a second sub-pixel group, the second connection portion surrounds one side of the third sub-pixel, and the third connection portion surrounds one side of the second sub-pixel;

[0021] Preferably, the second sub-pixel group includes a first side and a second side opposite to the first side, and the second connection portions all bypass the third sub-pixels along the first side; and the third connection portions all bypass the second sub-pixels along the second side.

[0022] In some embodiments, along the second direction, the first sub-pixel group and the second sub-pixel group are alternately arranged along the second direction; wherein one of the first direction and the second direction is a row direction, and the other is a column direction.

[0023] In some embodiments, the isolation structure is arranged on the side of the pixel defining portion away from the substrate, and the pixel definition layer is provided with a first via, a second via and a third via; the first sub-isolation structure is electrically connected to the first power line through the first via; the second sub-isolation structure is electrically connected to the second power line through the second via; and the third sub-isolation structure is electrically connected to the third power line through the third via.

[0024] In some embodiments, the isolation structure includes a first isolation portion and a second isolation portion sequentially arranged in a direction away from the substrate, an orthographic projection of the first isolation portion on the substrate is located within an orthographic projection of the second isolation portion on the substrate, and the first isolation portion is electrically connected to the first electrode;

[0025] Preferably, the material of the first isolation part is metal, and the material of the second isolation part is insulating material;

[0026] Preferably, in a direction from the substrate to the pixel definition layer, the cross-sectional area of ​​the first isolation portion tends to decrease gradually.

[0027] In some embodiments, the display panel further includes a first power line and a second power line respectively connected to different power signal terminals, and the sub-pixels include a first sub-pixel, a second sub-pixel, and a third sub-pixel of different colors;

[0028] The isolation structure includes a plurality of first sub-isolation structures, a plurality of second sub-isolation structures, and a plurality of third sub-isolation structures, wherein the first sub-isolation structure is electrically connected to the first electrode of the first sub-pixel and to the first power line, the second sub-isolation structure is electrically connected to the first electrode of the second sub-pixel and to the second power line; the third sub-isolation structure is electrically connected to the first electrode of the third sub-pixel and to the second power line;

[0029] Preferably, the first sub-isolation structures adjacent to each other in the first direction are connected to each other, and the second sub-isolation and third sub-isolation structures adjacent to each other in the first direction are connected to each other;

[0030] Preferably, the display panel further comprises an array layer arranged on one side of the substrate, and the first power line and the second power line are arranged on the array layer.

[0031] In some embodiments, the display panel further includes a plurality of first connection parts and a plurality of fourth connection parts, the first sub-isolation structure is connected through the first connection parts, the second sub-isolation structure and the third sub-isolation structure are connected through the fourth connection parts, and the first connection parts and the fourth connection parts are insulated from each other;

[0032] Preferably, the first sub-pixels are arranged in sequence along a first direction to form a first sub-pixel group, and the first connecting portion extends along the first direction;

[0033] Preferably, the second sub-pixels and the third sub-pixels are alternately arranged along the first direction to form a second sub-pixel group, and the fourth connecting portion extends along the first direction.

[0034] A second aspect of the present invention provides a display device, comprising a display panel according to any one of the above embodiments.

[0035] The embodiments of the present application provide a display panel and a display device, in which the first electrodes of sub-pixels of the same color are connected to the same power signal terminal through an isolation structure, and the first electrodes of at least two sub-pixels of different colors are connected to different power signal terminals through an isolation structure, thereby providing the same voltage signal to the first electrodes of the sub-pixels of the same color, and providing different voltage signals to the first electrodes of at least two sub-pixels of different colors, which can reduce power consumption, extend the service life of the display panel, and thus improve the performance of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0037] Figure 1A schematic cross-sectional view of a display panel provided in some embodiments of the present application;

[0038] Figure 2 A top view of a display panel provided in some embodiments of the present application;

[0039] Figure 3 A schematic cross-sectional view of a display panel provided in some other embodiments of the present application;

[0040] Figure 4 A top view of a display panel provided in some other embodiments of the present application;

[0041] Figure 5 for Figure 4 A partial schematic diagram of

[0042] Figure 6 for Figure 4 Another partial schematic diagram of;

[0043] Figure 7 A top view of a display panel provided in some other embodiments of the present application.

[0044] The figures are as follows:

[0045] Display panel 100; substrate 10; array layer 12; first power line D1; second power line D2; third power line D3; pixel definition layer 20; pixel defining portion 21; pixel opening 22; isolation structure 30; first isolation portion 31; second isolation portion 32; first sub-isolation structure 31a; second sub-isolation structure 31b; third sub-isolation structure 31c; light-emitting functional layer 40; first electrode E1; second electrode E2; display area AA; non-display area NA; binding area NA1; first sub-pixel P1; second sub-pixel P2; third sub-pixel P3; first sub-pixel group Z1; second sub-pixel group Z2; first connecting portion 51; second connecting portion 52; third connecting portion 53; fourth connecting portion 54; first sub-connecting portion 50a; second sub-connecting portion 50b; first direction X; second direction Y. DETAILED DESCRIPTION

[0046] The following detailed description of the embodiments of the present invention is provided in conjunction with the accompanying drawings and examples. The following detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of the present invention, but cannot be used to limit the scope of the present invention, that is, the present invention is not limited to the described embodiments.

[0047] In the description of the present invention, it should be noted that, unless otherwise specified, "multiple" means more than two; the terms "upper", "lower", "left", "right", "inside", "outside", etc. indicate positions or positional relationships only for the convenience of describing the present invention and simplifying the description, and do 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 limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. "Vertical" is not strictly vertical, but is within the allowable error range. "Parallel" is not strictly parallel, but is within the allowable error range.

[0048] Reference to "embodiments" in the present invention means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in the present invention may be combined with other embodiments.

[0049] The directional words appearing in the following description are all directions shown in the figures, and do not limit the specific structure of the present invention. In the description of the present invention, it should also be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0050] At present, the cathode of the display panel is usually prepared by full-surface evaporation, so all sub-pixels of all colors in the display area of ​​the display panel share the cathode potential, for example, the red sub-pixel, blue sub-pixel and green sub-pixel share the negative power line (Vss power line). Since the turn-on voltage of sub-pixels of different colors is different, the cathode potential setting is generally designed with the most stringent color cross voltage. 。The "toughest color voltage span" refers to the maximum voltage difference required to turn on the sub-pixels of different colors. Each sub-pixel requires a certain voltage to turn on and display a specific color. To ensure that all color sub-pixels can work properly, designers usually use a cathode potential setting that accommodates the maximum voltage difference. This means that the cathode potential is set high enough to satisfy the sub-pixel that requires the highest turn-on voltage, but this also causes the voltage of the other two color sub-pixels to be too high. This high potential may cause the voltage of the other two color sub-pixels to exceed the actual range they need. For example, if the turn-on voltage of the red and blue sub-pixels is low, and the cathode potential is set high, then the red and blue sub-pixels will receive more voltage than they need, increasing power consumption and reducing the performance of the display panel.

[0051] An embodiment of the present invention provides a display panel, which may be an organic light emitting diode (OLED) display panel, or other types of display panels, such as a micro light emitting diode (Micro Light Emitting Diode, Micro-LED) or a quantum dot light emitting diode (Quantum Light Emitting Diode, QLED) display panel.

[0052] For the above questions, please refer to Figure 1 and Figure 2 In a first aspect, the present invention provides a display panel 100. The display panel 100 includes a substrate 10, a plurality of sub-pixels, a pixel definition layer 20, an isolation structure 30, and a plurality of power signal terminals. Each sub-pixel includes a first electrode E1 and a second electrode E2 that are stacked, and a light-emitting functional layer 40 that is disposed between the first electrode E1 and the second electrode E2. The pixel definition layer 20 is disposed on a side of the second electrode E2 that is away from the substrate 10. The pixel definition layer 20 includes a pixel defining portion 21 and a pixel opening 22 formed by the pixel defining portion 21. The second electrode E2 is at least partially exposed by the pixel opening. The isolation structure 30 is disposed on one side of the substrate 10. The isolation structure 30 is at least partially disposed around the pixel opening 22 and is electrically connected to the first electrode E1. The plurality of power signal terminals are connected to voltage power signals. The first electrodes E1 of sub-pixels of the same color are electrically connected to the same power signal terminal through the isolation structure 30, and the isolation structures 30 of at least two sub-pixels of different colors are electrically connected to different power signal terminals.

[0053] Among them, the substrate can be a hard substrate 11 made of materials such as glass or plastic, or it can be a flexible substrate 11 made of materials such as polyethersulfone (PES), polyacrylate (PAR), polyetherimide (PEI), polyethylene naphthalate (PEN), polyethylene terephthalate (PET), polyphenylene sulfide (PPS), polyarylate, polyimide (PI), polycarbonate (PC) or cellulose acetate propionate (CAP).

[0054] The plurality of light-emitting functional layers 40 are disposed in one-to-one correspondence with the plurality of pixel openings 22 . The light-emitting functional layers 40 are located within the pixel openings 22 , so that interference between adjacent sub-pixels can be avoided.

[0055] The second electrode E2, the light-emitting functional layer 40 and the first electrode E1 are sequentially arranged in a direction away from the substrate 10, and the second electrode E2, the light-emitting functional layer 40 and the first electrode E1 are sequentially stacked to form a sub-pixel. After the first electrode E1 and the second electrode E2 are energized, the second electrode E2 acts as an anode and the first electrode E1 acts as a cathode. The second electrode E2 is located on the side of the light-emitting functional layer 40 facing the substrate 10 and exposed to the pixel opening 22, and the first electrode E1 is located on the side of the light-emitting functional layer 40 facing away from the substrate 10, and the first electrode E1 and the second electrode E2 jointly drive the light-emitting functional layer 40 to emit light.

[0056] The light-emitting functional layer 40 may be formed by stacking a plurality of film layer structures. For example, the light-emitting functional layer 40 may include a stacked hole injection layer (HIL), a hole transport layer (HTL), a light-emitting layer, an electron injection layer (EIL) and an electron transport layer (ETL). Figure 1 The light-emitting functional layer 40 in FIG. 1 only illustrates the light-emitting layer.

[0057] The isolation structure 30 is disposed on the side of the pixel defining portion 21 away from the substrate 10. The isolation structure 30 is a structure that is wide at the top and narrow at the bottom, and the longitudinal section may be an inverted trapezoidal shape or a T-shaped structure. Exemplarily, the orthographic projection of the isolation structure 30 on the substrate 10 is located outside the orthographic projection of the pixel opening 22 on the substrate 10, and the orthographic projection of the isolation structure 30 on the substrate 10 is located within the orthographic projection of the pixel defining portion 21 on the substrate 10. The presence of the isolation structure 30 can separate different light-emitting functional layers 40 and corresponding first electrodes E1 during the preparation of the display panel 100, and meet the need for electrical connection of adjacent first electrodes E1.

[0058] Specifically, during the preparation of the display panel 100, the isolation structure 30 and the pixel opening 22 are usually formed first, and then the light-emitting functional layer 40 is directly evaporated without the aid of a mask. In this process, due to the presence of the isolation structure 30, part of the light-emitting material will be evaporated in the pixel opening 22, and part of the light-emitting material will be evaporated on the side of the isolation structure 30 away from the substrate 10, so that the light-emitting materials on different sides of the isolation structure 30 in the direction parallel to the plane of the substrate 10 are discontinuous, and the light-emitting functional layer 40 is separated from each other. In some embodiments, the light-emitting functional layer 40 can be evaporated without the use of a precision mask, thereby reducing costs, and avoiding the shadow effect of the light-emitting layer evaporated by the precision mask, and the spacing between sub-pixels can be reduced, thereby improving the brightness of the display panel 100. In addition, since the electron transport layer, electron injection layer, hole transport layer, hole injection layer, etc. of the light-emitting functional layer 40 are all separated by the isolation structure 30, crosstalk between sub-pixels can be prevented, and the display effect of the display panel 100 can be improved.

[0059] Similarly, the first electrodes E1 can also be separated from each other by means of the isolation structure 30. It should be noted that, for the first electrode E1, part of the first electrode E1 is located in the pixel opening 22, and part of the first electrode E1 is located on the side of the pixel defining portion 21 away from the substrate 10 and can overlap with the isolation structure 30, and the isolation structure 30 is arranged around the circumference of the first electrode E1, and the isolation structure 30 includes a conductive material, so that adjacent first electrodes E1 can be electrically connected to each other by means of the isolation structure 30.

[0060] Specifically, the display panel 100 includes a display area AA and a non-display area NA. The display area AA refers to an area where a picture can be displayed and is provided with pixel units; the non-display area NA refers to an area where a picture cannot be displayed and is generally used for routing, or for placing binding terminals, test terminals, VSR circuits, etc. Optionally, the non-display area NA can surround the display area AA circumferentially, or can be set on any one side or two opposite sides of the display area AA, for example, the non-display area NA can be set at the bottom or side of the display panel 100. It should be noted that the bottom of the display panel 100 refers to the area where the chip is set and the wiring connecting the chip is connected; the side of the display panel 100 refers to the wiring area of ​​the left frame and the right frame of the display panel 100.

[0061] The non-display area NA may include a binding area NA1, and the power signal terminal is located in the binding area NA1, that is, the power signal terminal may be a Vss pad of the binding area NA1. The power signal terminal may be connected to a Vss pin on the driver chip through a flexible circuit board FPC, thereby receiving a negative voltage power signal provided by the driver chip.

[0062] In the present embodiment, the first electrodes E1 of the sub-pixels of the same color are electrically connected to the same power signal terminal through the isolation structure 30, and at least two sub-pixels of different colors are electrically connected to different power signal terminals through the isolation structure 30. Exemplarily, the first electrode E1 of the green sub-pixel is connected to the first power signal terminal through the isolation structure 30; the first electrode E1 of the red sub-pixel is connected to the second power signal terminal through the isolation structure 30; the first electrode E1 of the blue sub-pixel is connected to the third power signal terminal through the isolation structure 30, that is, the green sub-pixel, the red sub-pixel and the blue sub-pixel are respectively connected to different power signal terminals. Alternatively, the first electrode E1 of the green sub-pixel is connected to the first power signal terminal through the isolation structure 30, and the first electrode E1 of the red sub-pixel and the first electrode E1 of the blue sub-pixel are connected to the second power signal terminal through the isolation structure 30. By setting different power signal terminals, different negative voltage power signals can be provided for the first electrodes E1 of at least two different colors of the light-emitting functional layer 40. Compared with using the same power signal terminal to provide a negative voltage power signal for the entire pixel cathode, this embodiment can individually set the cathode potential of at least two sub-pixels of different colors, thereby reducing power consumption, extending the service life of the display panel, and thus improving the performance of the display panel.

[0063] Please refer to Figure 3 and Figure 4 In some embodiments, the substrate 10 includes a first power line D1, a second power line D2, and a third power line D3 respectively connected to different power signal terminals, the sub-pixels include a first sub-pixel P1, a second sub-pixel P2, and a third sub-pixel P3 of different colors, the isolation structure 30 includes a plurality of first sub-isolation structures 30a, a second sub-isolation structure 30b, and a third sub-isolation structure 30c, the first sub-isolation structure 30a is electrically connected to the first electrode E1 of the first sub-pixel P1, and is electrically connected to the first power line D1; the second sub-isolation structure 30b is electrically connected to the first electrode E1 of the second sub-pixel P2, and is electrically connected to the second power line D2; the third sub-isolation structure 30c is electrically connected to the first electrode E1 of the third sub-pixel P3, and is electrically connected to the third power line D3.

[0064] Exemplarily, the first power line D1 is connected to the first power signal terminal, the second power line D2 is connected to the second power signal terminal, and the third power line D3 is connected to the third power signal terminal. The first power line D1 is connected to the first sub-isolation structure 30a, and the first power line D1 is used to transmit a negative voltage power signal to the first electrode E1 of the first sub-pixel P1. The second power line D2 is connected to the second sub-isolation structure 30b, and the second power line D2 is used to transmit a negative voltage power signal to the first electrode E1 of the second sub-pixel P2. The third power line D3 is connected to the third sub-isolation structure 30c, and the third power line D3 is used to transmit a negative voltage power signal to the first electrode E1 of the third sub-pixel P3. The first sub-pixel P1 can be a green sub-pixel, the second sub-pixel P2 can be a red sub-pixel, and the third sub-pixel P3 can be a blue sub-pixel. Since the first sub-pixel P1, the second sub-pixel P2 and the third sub-pixel P3 have different turn-on voltages, this embodiment provides negative voltage power signals to the first sub-pixel P1, the second sub-pixel P2 and the third sub-pixel P3 respectively, without setting the cathode potential in a cross-voltage manner, thereby avoiding the problem of over-setting the potentials of two color sub-pixels. This embodiment allows the first sub-pixel P1, the second sub-pixel P2 and the third sub-pixel P3 to operate at their respective optimal set voltages, thereby reducing power consumption.

[0065] In some embodiments, adjacent first sub-isolation structures 30 a in the first direction X are connected to each other, adjacent second sub-isolation structures 30 b in the first direction X are connected to each other, and adjacent third sub-isolation structures 30 c in the first direction X are connected to each other.

[0066] The first sub-isolation structures 30a are connected to each other, thereby connecting the first electrode E1 of the first sub-pixel P1 to the first power line D1. The second sub-isolation structures 30b are connected to each other, thereby connecting the first electrode E1 of the second sub-pixel P2 to the second power line D2. The third sub-isolation structures 30c are connected to each other, thereby connecting the first electrode E1 of the third sub-pixel P3 to the third power line D3. The isolation structure 30 of this embodiment has a compact structure, can simplify the structure, and reduce the frame size of the display panel 100.

[0067] In some embodiments, the display panel 100 further includes an array layer 12 disposed on one side of the substrate 10 , and the first power line D1 , the second power line D2 , and the third power line D3 are respectively disposed on the array layer 12 .

[0068] A driving circuit for controlling the light-emitting functional layer 40 to emit light is provided in the array layer 12. The array layer 12 is generally composed of inorganic film layers such as a metal layer, a semiconductor layer (active layer), and an insulating layer. By patterning these inorganic film layers, a driving circuit for controlling the light-emitting functional layer 40 to emit light can be formed. There are many ways to implement the specific circuit structure, which will not be described in detail here.

[0069] In this embodiment, the first power line D1 , the second power line D2 and the third power line D3 are respectively disposed in the array layer 12 , which are located in different layers from the isolation structure 30 , thereby reducing the frame size of the display panel 100 .

[0070] Please combine Figures 4 to 6 In some embodiments, the display panel 100 further includes a plurality of first connection parts 51, a plurality of second connection parts 52, and a plurality of third connection parts 53, the first sub-isolation structure 30a is connected via the first connection part 51, the second sub-isolation structure 30b is connected via the second connection part 52, the third sub-isolation structure 30c is connected via the third connection part 53, and the first connection part 51, the second connection part 52, and the third connection part 53 are insulated from each other.

[0071] The first connection portion 51 is disposed between adjacent first sub-pixels P1, the second connection portion 52 is disposed between adjacent second sub-pixels P2, and the third connection portion 53 is disposed between adjacent third sub-pixels P3. The first connection portion 51 connects the first sub-isolation structures 30a in series, the second connection portion 52 connects the second sub-isolation structures 30b in series, and the third connection portion 53 connects the third sub-isolation structures 30c in series, thereby improving the flexibility of connection between the isolation structures 30, so that the sub-pixels are staggered and alternately arranged without affecting the electrical connection between the isolation structures 30.

[0072] In some embodiments, the first connection portion 51 , the second connection portion 52 , and the third connection portion 53 all extend in the same direction and are connected to different power lines.

[0073] Exemplarily, if the first connection portion 51 connects the adjacent first sub-isolation structure 30a along the column direction, the second connection portion 52 also connects the adjacent second sub-isolation structure 30b along the column direction, and the third connection portion 53 also connects the adjacent third sub-isolation structure 30c along the column direction. If the first connection portion 51 connects the adjacent first sub-isolation structure 30a along the row direction, the second connection portion 52 also connects the adjacent second sub-isolation structure 30b along the row direction, and the third connection portion 53 also connects the adjacent third sub-isolation structure 30c along the row direction. In this way, the first connection portion 51, the second connection portion 52 and the third connection portion 53 do not interfere with each other, and there is no risk of overlap.

[0074] In some embodiments, the first sub-isolation structure 30a arranged along the second direction Y is connected to the same first power line D1; the second sub-isolation structure 30b arranged along the second direction Y is connected to the same second power line D2; and the third sub-isolation structure 30c arranged along the second direction Y is connected to the same third power line D3.

[0075] Exemplarily, the first direction X is a column direction, and the first sub-isolation structures 30a arranged along the column direction are connected to the first power line D1 after being connected to each other, and the first sub-isolation structures 30a in different columns are also connected to the first power line D1. The second sub-isolation structures 30b arranged along the column direction are connected to the second power line D2 after being connected to each other, and the second sub-isolation structures 30b in different columns are also connected to the second power line D2. The third sub-isolation structures 30c arranged along the column direction are connected to the third power line D3 after being connected to each other, and the third sub-isolation structures 30c in different columns are also connected to the third power line D3.

[0076] In this embodiment, all first sub-isolation structures 30a are connected to the same first power line D1, all second sub-isolation structures 30b are connected to the same second power line D2, and all third sub-isolation structures 30c are connected to the same third power line D3, thereby reducing the number of power lines and providing more wiring space for other lines.

[0077] In some embodiments, in a direction perpendicular to the substrate 10, the cross-sections of the first connection portion 51, the second connection portion 52, and the third connection portion 53 are respectively the same as the cross-sectional shape of the isolation structure 30, and are all structures that are wide at the top and narrow at the bottom. The first connection portion 51, the second connection portion 52, the third connection portion 53, and the isolation structure 30 are prepared by the same film forming process, and then formed by a single patterning process using the same mask. Depending on the specific pattern, the same patterning process may include multiple exposure, development, or etching processes. The first connection portion 51, the second connection portion 52, the third connection portion 53, and the isolation structure 30 of this embodiment are prepared by the same patterning process, which improves production efficiency.

[0078] In some embodiments, the isolation structure 30 is an integrated structure, and at least one of the first connection portion 51 , the second connection portion 52 , and the third connection portion 53 is disposed on the same layer as the isolation structure 30 .

[0079] That is to say, if the isolation structure 30 is a layer, at least one of the first connection portion 51 , the second connection portion 52 , and the third connection portion 53 is also a layer and is arranged in the same layer as the isolation structure 30 , which can reduce the thickness of the display panel 100 .

[0080] Alternatively, in other embodiments, the isolation structure 30 includes a first isolation portion 31 and a second isolation portion 32, the first isolation portion 31 is located on the substrate 10, the second isolation portion 32 is on the side of the first isolation portion 31 away from the substrate 10, and the orthographic projection of the first isolation portion 31 on the substrate 10 is located within the orthographic projection of the second isolation portion 32 on the substrate 10; at least one of the first connection portion 51, the second connection portion 52 and the third connection portion 53 includes a first sub-connection portion 50a and a second sub-connection portion 50b, the first sub-connection portion 50a is located on the substrate 10, the second sub-connection portion 50b is located on the side of the first sub-connection portion 50a away from the substrate 10, and the orthographic projection of the first sub-connection portion 50a on the substrate 10 is located within the orthographic projection of the second sub-connection portion 50b on the substrate 10; wherein the first isolation portion 31 is arranged on the same layer as the first sub-connection portion 50a, and the second isolation portion 32 is arranged on the same layer as the second sub-connection portion 50b.

[0081] The material of the first isolation portion 31 may include a conductive material, and the first electrode E1 is electrically connected to the first isolation portion 31. Since the orthographic projection of the first isolation portion 31 on the substrate 10 is located within the orthographic projection of the second isolation portion 32 on the substrate 10, that is, the width of the first isolation portion 31 along the substrate 10 is smaller than the width of the second isolation portion 32 along the substrate 10, when the light-emitting functional layer 50 is evaporated, the light-emitting material will not be deposited on the side wall surface of the first isolation portion 31, thereby achieving isolation between adjacent light-emitting functional layers 40.

[0082] Since the first isolating portion 31 and the first sub-connecting portion 50 a are disposed at the same layer, and the second isolating portion 32 and the second sub-connecting portion 50 b are disposed at the same layer, the thickness of the display panel 100 can also be reduced.

[0083] Of course, in other embodiments, the first connection portion, the second connection portion 52 , and the third connection portion 53 may also be located in different layers, and may also be respectively arranged in different layers with the isolation structure 30 .

[0084] In some embodiments, the first sub-pixels P1 are sequentially arranged along the first direction X to form a first sub-pixel group Z1, and the first connection portion 51 extends along the first direction X. Taking the first direction X as a column direction as an example, the first sub-pixels P1 are sequentially arranged in columns at intervals, and the first connection portion 51 also extends along the column direction, thereby simplifying the connection route, making the structure more compact, and providing more space for the second connection portion 52 and the third connection portion 53.

[0085] In some embodiments, the second subpixel P2 and the third subpixel P3 are alternately arranged along the first direction X to form a second subpixel group Z2, the second connection portion 52 surrounds one side of the third subpixel P3, and the third connection portion 53 surrounds one side of the second subpixel P2.

[0086] Exemplarily, the first sub-pixel P1 is a green sub-pixel, the second sub-pixel P2 is a red sub-pixel, and the third sub-pixel P3 is a blue sub-pixel. Each pixel is composed of a red sub-pixel, a green sub-pixel, a blue sub-pixel, and a green sub-pixel. The green sub-pixel is complete, and the red sub-pixel and the blue sub-pixel are reduced by half compared to the traditional RGB arrangement, and the total number of sub-pixels is reduced by about one-third. Since the luminous efficiency of the blue sub-pixel is lower than that of the red sub-pixel and the green sub-pixel, in this embodiment, every two pixels share a green sub-pixel, so that the area of ​​the light-emitting function layer 40 of the blue sub-pixel can be set larger, so that the current required to achieve the same luminous intensity is reduced, thereby delaying the decay rate and increasing the life of the display panel 100.

[0087] Among them, the second connection portion 52 and the third connection portion 53 can be in a straight bend shape or a curved bend shape. Since the second sub-pixel P2 and the third sub-pixel P3 are arranged alternately, the second connection portion 52 can bypass a third sub-pixel P3 and then connect to the adjacent second sub-isolation structure 30b. Similarly, the third connection portion 53 can bypass a second sub-pixel P2 and then connect to the adjacent third sub-isolation structure 30c to achieve the connection between the second sub-isolation structures 30b and the connection between the third sub-isolation structures 30c. In addition, the second connection portion 52 and the third connection portion 53 of this embodiment are bent along the first direction X, bypassing the third sub-pixel P3 and the second sub-pixel P2 respectively, and do not interfere with the first connection portion 51, thereby reducing the risk of overlapping each other.

[0088] In some embodiments, the second sub-pixel group Z2 includes a first side and a second side opposite to the first side, the second connection portion 52 bypasses the third sub-pixel P3 along the first side, and the third connection portion 53 bypasses the second sub-pixel P2 along the second side. Exemplarily, the first side is the left side, the second side is the right side, the second connection portion 52 bypasses the third sub-pixel P3 from the left side, and the third connection portion 53 bypasses the second sub-pixel P2 from the right side. In this way, the risk of the second connection portion 52 and the third connection portion 53 overlapping each other is further reduced, and the gaps between the sub-pixels can be fully utilized to improve the pixel density.

[0089] Further, the first sub-pixel P1, the second sub-pixel P2 and the third sub-pixel P3 are respectively arranged in a prism shape. The first connection portion 51 is connected between the vertices of the first sub-isolation structure 30a along the first direction X, the second connection portion 52 is connected between the vertices of the second sub-isolation structure 30b along the first direction X, and the third connection portion 53 is connected between the vertices of the third sub-isolation structure 30c along the first direction X. Exemplarily, the first direction X is a column direction, then the first connection portion 51 is connected between the upper and lower vertices of the first sub-pixel P1, the second connection portion 52 is connected between the upper and lower vertices of the second sub-pixel P2, and the third connection portion 53 is connected between the upper and lower vertices of the third sub-pixel P3. In this way, more space can be reserved for each sub-pixel on both sides along the second direction Y to accommodate the bent second connection portion 52 and the third connection portion 53, thereby improving the pixel density.

[0090] In some embodiments, along the second direction Y, the first sub-pixel group Z1 and the second sub-pixel group Z2 are alternately arranged; wherein one of the first direction X and the second direction Y is a row direction, and the other is a column direction. In this embodiment, every two pixels can share a green sub-pixel, so that the area of ​​the light-emitting functional layer 40 of the blue sub-pixel can be set larger, so that the current required to achieve the same light intensity is reduced, thereby slowing down the decay speed and increasing the life of the display panel 100. In addition, the pixel units arranged in this embodiment can make the light-emitting brightness of the display panel more uniform, thereby improving the display effect.

[0091] In some embodiments, along the second direction Y, the first sub-pixel P1 is staggered with the second sub-pixel P2 and the third sub-pixel P3 .

[0092] Exemplarily, the first sub-pixel P1 is a green sub-pixel, the second sub-pixel P2 is a red sub-pixel, and the third sub-pixel P3 is a blue sub-pixel. The color perception of the green sub-pixel has the greatest impact on the human eye, so the green sub-pixel is staggered with the blue sub-pixel and the red sub-pixel, respectively, to improve the brightness and contrast of the display panel 100 and reduce energy consumption. In addition, the density of the green sub-pixel is generally higher than that of the blue sub-pixel and the red sub-pixel because the human eye is more sensitive to green. Therefore, by staggering the green sub-pixel with the blue sub-pixel and the red sub-pixel, excessive overlap and interference between the green sub-pixels can be avoided while maintaining a high pixel density, thereby improving the image quality and clarity of the display panel 100.

[0093] In some embodiments, the isolation structure 30 is arranged on the side of the pixel defining portion 21 away from the substrate 10, and the pixel definition layer 20 is respectively provided with a first via hole, a second via hole and a third via hole; the first sub-isolation structure 30a is electrically connected to the first power line D1 through the first via hole; the second sub-isolation structure 30b is electrically connected to the second power line D2 through the second via hole; and the third sub-isolation structure 30c is electrically connected to the third power line D3 through the third via hole.

[0094] The first power line D1, the second power line D2 and the third power line D3 are arranged in the array layer 12. They can be arranged in the same layer or in different layers. The isolation structure 30 is connected by opening vias on the pixel definition layer 20, which can simplify the structure, eliminate the need for indirect connection through other lines, and reduce voltage drop.

[0095] In other embodiments, the first connection portion 51 may be electrically connected to the first power line D1 through the first via hole, the second connection portion 52 may be electrically connected to the second power line D2 through the second via hole, and the third connection portion 53 may be electrically connected to the third power line D3 through the third via hole.

[0096] In some embodiments, the first power line D1, the second power line D2 and the third power line D3 are arranged close to the power signal terminal. That is, the first power line D1, the second power line D2 and the third power line D3 are arranged close to the binding area NA1, and the voltage drop of this embodiment is smaller than that of arranging the first power line D1, the second power line D2 and the third power line D3 in other areas of the non-display area NA.

[0097] In some embodiments, the isolation structure 30 includes a first isolation portion 31 and a second isolation portion 32 which are sequentially arranged in a direction away from the substrate 10. The orthographic projection of the first isolation portion 31 on the substrate 10 is located within the orthographic projection of the second isolation portion 32 on the substrate 10, and the first isolation portion 31 is electrically connected to the first electrode E1. The edge of the second isolation portion 32 is arranged to protrude and extend along the circumference of the first isolation portion 31, and the first electrode E1 is separated by the first isolation portion 31. The height of the first isolation portion 31 is relatively high, and the width of the second isolation portion 32 is relatively wide. By matching the higher first isolation portion 31 with the wider second isolation portion 32, relative to the implementation method in which the entire isolation structure 30 is set as an inverted trapezoidal structure, the first isolation portion 31 can better isolate the first electrode E1, and the upper second isolation portion 32 can play a better role in reflection and refraction, making the display effect more vivid and bright.

[0098] In some embodiments, the material of the first isolation portion 31 is metal, and the material of the second isolation portion 32 is insulating material. By setting the material of the first isolation portion 31 to metal, electrical connection between the first electrodes E1 can be achieved. The second isolation portion 32 can be made of the same material as the encapsulation layer of the display panel 100, such as silicon nitride, silicon oxide, or silicon oxynitride. The second isolation portion 32 has an insulating effect, which can prevent the internal short circuit of the display panel 100 and reduce the interference and interference between the layers, thereby improving the resolution and contrast of the display panel 100 and improving the display quality.

[0099] In some embodiments, the cross-sectional area of ​​the first isolation portion 31 gradually decreases in the direction from the substrate 10 to the pixel definition layer 20. That is, the longitudinal section of the first isolation portion 31 is a regular trapezoid, which is not only convenient for process preparation, but also can improve the overlap effect between the first electrode E1 and the isolation structure 30.

[0100] like Figure 7 As shown, in other embodiments, the display panel 100 further includes a first power line D1 and a second power line D2 respectively connected to different power signal terminals, and the display panel 100 includes a first sub-pixel P1, a second sub-pixel P2 and a third sub-pixel P3 of different colors; the isolation structure 30 includes a plurality of first sub-isolation structures 30a, a second sub-isolation structure 30b and a third sub-isolation structure 30c, the first sub-isolation structure 30a is electrically connected to the first electrode E1 of the first sub-pixel P1, and is electrically connected to the first power line D1; the second sub-isolation structure 30b is electrically connected to the first electrode E1 of the second sub-pixel P2, and is electrically connected to the second power line D2; the third sub-isolation structure 30c is electrically connected to the first electrode E1 of the third sub-pixel P3, and is electrically connected to the second power line D2. Compared with using the same power signal terminal to provide a negative voltage power signal to the cathode of the entire pixel, this embodiment can also reduce the power consumption of the cathode.

[0101] Furthermore, adjacent first sub-isolation structures 30a in the first direction X are connected to each other, and adjacent second sub-isolation structures 30b and third sub-isolation structures 30c in the first direction X are connected to each other. The isolation structure 30 of this embodiment is compact, can simplify the structure, and reduce the frame size of the display panel 100.

[0102] Furthermore, the display panel 100 further includes an array layer 12 disposed on one side of the substrate 10, and the first power line D1 and the second power line D2 are disposed on the array layer 12. In this embodiment, the first power line D1 and the second power line D2 are disposed on the array layer 12, respectively, and are located on different layers from the isolation structure 30, so that the frame size of the display panel 100 can be reduced.

[0103] In some embodiments, the display panel further includes a plurality of first connection parts and a plurality of second connection parts, the first sub-isolation structure is connected through the first connection parts, the second sub-isolation structure and the third sub-isolation structure are connected through the second connection parts, and the first connection parts and the second connection parts are insulated from each other;

[0104] Preferably, the first sub-pixels are arranged in sequence along a first direction to form a first sub-pixel group, and the first connecting portion extends along the first direction;

[0105] The second sub-pixels and the third sub-pixels are alternately arranged along the first direction to form a second sub-pixel group, and the second connecting portion extends along the first direction.

[0106] like Figure 7 As shown, in some embodiments, the display panel 100 also includes a plurality of first connection parts 51 and a plurality of fourth connection parts 54, the first sub-isolation structure 30a is connected through the first connection part 51, the second sub-isolation structure 30b and the third sub-isolation structure 30c are connected through the fourth connection part 54, and the first connection part 51 and the fourth connection part 54 are insulated from each other.

[0107] The first connection portion 51 is disposed between adjacent first sub-pixels P1, and the fourth connection portion is disposed between adjacent second sub-pixels P2 and third sub-pixels P3. The first connection portion 51 connects the first sub-isolation structures 30a in series, and the fourth connection portion 54 connects the second sub-isolation structure 30b and the third sub-isolation structure 30c in series, thereby improving the flexibility of connection between the isolation structures 30, so that the sub-pixels are staggered and alternately arranged without affecting the electrical connection between the isolation structures 30.

[0108] In some embodiments, the first sub-pixels P1 are sequentially arranged along the first direction X to form a first sub-pixel group Z1, and the first connection portion 51 extends along the first direction X. Taking the first direction X as a column direction as an example, the first sub-pixels P1 are sequentially arranged in columns at intervals, and the first connection portion 51 also extends along the column direction, thereby simplifying the connection route, making the structure more compact, and providing more space for the fourth connection portion 54.

[0109] In some embodiments, the second sub-pixels P2 and the third sub-pixels P3 are alternately arranged along the first direction X to form a second sub-pixel group Z2, and the fourth connection portion 54 extends along the first direction X. The fourth connection portion 54 does not need to be arranged around the third sub-pixel P3, which shortens the length of the fourth connection portion 54, simplifies the process, saves materials, and thus reduces the production cost of the display panel 100.

[0110] A second aspect of the present invention provides a display device, comprising the display panel 100 according to any one of the above embodiments.

[0111] The second aspect of the present invention provides a display device, comprising the display panel 100 of any of the above embodiments. Since the display device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0112] The display device may be any device with a display function, for example, a mobile phone, a tablet computer, a laptop computer, a PDA, an in-vehicle electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook, or a personal digital assistant (PDA), etc. It may also be a non-mobile device such as a personal computer (PC), a television (TV), a teller machine, or an automated machine.

[0113] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A display panel, characterized in that: include: substrate; A plurality of sub-pixels, each sub-pixel comprising a first electrode and a second electrode which are stacked, and a light-emitting functional layer arranged between the first electrode and the second electrode; a pixel definition layer, disposed on a side of the second electrode away from the substrate, the pixel definition layer comprising a pixel definition portion and a pixel opening formed by the pixel definition portion, at least a portion of the second electrode being exposed through the pixel opening; An isolation structure, disposed on one side of the substrate, the isolation structure at least partially surrounding the pixel opening and electrically connected to the first electrode; Multiple power signal terminals are connected to voltage power signals; The first electrodes of the sub-pixels of the same color are electrically connected to the same power signal terminal through the isolation structure, and the sub-pixels of at least two different colors are electrically connected to different power signal terminals through the isolation structure.

2. The display panel according to claim 1, characterized in that: The display panel further comprises a first power line, a second power line and a third power line respectively connected to different power signal terminals, and the sub-pixels comprise a first sub-pixel, a second sub-pixel and a third sub-pixel of different colors; The isolation structure comprises a plurality of first sub-isolation structures, a plurality of second sub-isolation structures and a plurality of third sub-isolation structures, wherein the first sub-isolation structure is electrically connected to the first electrode of the first sub-pixel and to the first power line, the second sub-isolation structure is electrically connected to the first electrode of the second sub-pixel and to the second power line; the third sub-isolation structure is electrically connected to the first electrode of the third sub-pixel and to the third power line; Preferably, the first sub-isolation structures adjacent to each other in the first direction are connected to each other, the second sub-isolation structures adjacent to each other in the first direction are connected to each other, and the third sub-isolation structures adjacent to each other in the first direction are connected to each other; Preferably, the display panel further comprises an array layer arranged on one side of the substrate, and the first power line, the second power line and the third power line are respectively arranged on the array layer.

3. The display panel according to claim 2, characterized in that: The display panel further includes a plurality of first connection parts, a plurality of second connection parts and a plurality of third connection parts, the first sub-isolation structures are connected via the first connection parts, the second sub-isolation structures are connected via the second connection parts, the third sub-isolation structures are connected via the third connection parts, and the first connection parts, the second connection parts and the third connection parts are insulated from each other; Preferably, the first connection portion, the second connection portion and the third connection portion all extend in the same direction and are connected to different power lines; Preferably, in a direction perpendicular to the substrate, the cross-sections of the first connecting portion, the second connecting portion and the third connecting portion are respectively the same as the cross-section shape of the isolation structure; Preferably, the isolation structure is an integrated structure, and at least one of the first connection part, the second connection part and the third connection part is arranged on the same layer as the isolation structure; or, The isolation structure comprises a first isolation portion and a second isolation portion, wherein the first isolation portion is located on the substrate, the second isolation portion is located on a side of the first isolation portion away from the substrate, and an orthographic projection of the first isolation portion on the substrate is located within an orthographic projection of the second isolation portion on the substrate; At least one of the first connection portion, the second connection portion and the third connection portion includes a first sub-connection portion and a second sub-connection portion, the first sub-connection portion is located on the substrate, the second sub-connection portion is located on a side of the first sub-connection portion away from the substrate, and the orthographic projection of the first sub-connection portion on the substrate is located within the orthographic projection of the second sub-connection portion on the substrate; The first isolation part and the first sub-connection part are arranged on the same layer, and the second isolation part and the second sub-connection part are arranged on the same layer.

4. The display panel according to claim 3, characterized in that: The first sub-pixels are arranged in sequence along a first direction to form a first sub-pixel group, and the first connecting portion extends along the first direction; Preferably, the second sub-pixels and the third sub-pixels are alternately arranged along the first direction to form a second sub-pixel group, the second connecting portion surrounds one side of the third sub-pixel, and the third connecting portion surrounds one side of the second sub-pixel; Preferably, the second sub-pixel group includes a first side and a second side opposite to the first side, and the second connecting portions all bypass the third sub-pixel along the first side; and the third connecting portions all bypass the second sub-pixel along the second side.

5. The display panel according to claim 4, characterized in that: Along the second direction, the first sub-pixel groups and the second sub-pixel groups are alternately arranged; wherein one of the first direction and the second direction is a row direction, and the other is a column direction.

6. The display panel according to claim 2, characterized in that: The isolation structure is arranged on a side of the pixel defining portion away from the substrate, and the pixel definition layer is provided with a first via hole, a second via hole and a third via hole; The first sub-isolation structure is electrically connected to the first power line through the first via hole; The second sub-isolation structure is electrically connected to the second power line through the second via hole; The third sub-isolation structure is electrically connected to the third power line through the third via hole.

7. The display panel according to claim 1, characterized in that: The isolation structure comprises a first isolation portion and a second isolation portion which are sequentially arranged in a direction away from the substrate, the orthographic projection of the first isolation portion on the substrate is located within the orthographic projection of the second isolation portion on the substrate, and the first isolation portion is electrically connected to the first electrode; Preferably, the material of the first isolation part is metal, and the material of the second isolation part is insulating material; Preferably, in a direction from the substrate to the pixel definition layer, a cross-sectional area of ​​the first isolation portion tends to decrease gradually.

8. The display panel according to claim 1, characterized in that: The display panel further comprises a first power line and a second power line respectively connected to different power signal terminals, and the sub-pixels comprise a first sub-pixel, a second sub-pixel and a third sub-pixel of different colors; The isolation structure comprises a plurality of first sub-isolation structures, a plurality of second sub-isolation structures and a plurality of third sub-isolation structures, wherein the first sub-isolation structure is electrically connected to the first electrode of the first sub-pixel and to the first power line, the second sub-isolation structure is electrically connected to the first electrode of the second sub-pixel and to the second power line; the third sub-isolation structure is electrically connected to the first electrode of the third sub-pixel and to the second power line; Preferably, the first sub-isolation structures adjacent to each other in the first direction are connected to each other, and the second sub-isolation and the third sub-isolation structures adjacent to each other in the first direction are connected to each other; Preferably, the display panel further comprises an array layer arranged on one side of the substrate, and the first power line and the second power line are arranged on the array layer.

9. The display panel according to claim 8, characterized in that: The display panel further includes a plurality of first connection parts and a plurality of fourth connection parts, the first sub-isolation structures are connected via the first connection parts, the second sub-isolation structures and the third sub-isolation structures are connected via the fourth connection parts, and the first connection parts and the fourth connection parts are insulated from each other; Preferably, the first sub-pixels are sequentially arranged along a first direction to form a first sub-pixel group, and the first connecting portion extends along the first direction; Preferably, the second sub-pixels and the third sub-pixels are alternately arranged along the first direction to form a second sub-pixel group, and the fourth connecting portion extends along the first direction.

10. A display device, characterized in that: The invention comprises the display panel according to any one of claims 1 to 9.

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