Display panel, preparation method thereof and display device

Abstract

The application provides a display panel, a preparation method thereof and a display device. The display panel comprises a substrate, an isolation structure located on one side of the substrate, the isolation structure enclosing a plurality of first openings, the first opening having a first side and a second side oppositely arranged along a first direction, and a plurality of light emitting units, at least part of the light emitting unit being located in the first opening, the light emitting unit comprising a first electrode and a second electrode stacked and arranged in sequence along a direction away from the substrate, the end of the first electrode close to the second side being orthographically projected on the substrate and being misaligned with the orthographic projection of the isolation structure on the substrate, and the second electrode not overlapping with the isolation structure on the second side. The technical scheme of the application can improve the display effect.

Description

Technical Field

[0001] This application relates to the field of display technology, specifically to a display panel and its manufacturing method, and a display device. Background Technology

[0002] With the development of display technology, Organic Light-Emitting Diode (OLED) has become one of the most commonly used displays in electronic devices such as mobile phones, tablets, smart TVs, and wearable devices due to its advantages such as low power consumption, high brightness, wide viewing angle, and high contrast. In the traditional display panel manufacturing process, a fine metal mask (FMM) is typically used to pattern the light-emitting pixels. FMM technology is mature and has extensive mass production experience. However, FMM technology also has limitations such as limited precision, high development costs, and long development cycles. Fine metal mask-less technology eliminates the limitations of traditional OLED processes on display size, resolution, and other screen performance characteristics, offering advantages such as high performance, full-size display, and agile delivery. Patents CN118251982A, CN116648095A, CN117062489A, CN118742138A, CN118678783A, CN118660598A, CN118675450A, CN118824188A, and CN118781966A describe relevant content about the technology without fine metal masks, and are provided for reference.

[0003] However, current display panels still have some issues when displaying images. Summary of the Invention

[0004] To address the aforementioned issues, embodiments of this application provide a display panel, a method for manufacturing the same, and a display device.

[0005] In a first aspect, embodiments of this application provide a display panel, comprising: a substrate; an isolation structure located on one side of the substrate, the isolation structure enclosing a plurality of first openings, the first openings having a first side and a second side disposed opposite to each other along a first direction; a plurality of light-emitting units, at least a portion of the light-emitting units being located within the first openings, the light-emitting units including a first electrode and a second electrode sequentially stacked along a direction away from the substrate, the orthographic projection of the end of the first electrode near the second side on the substrate being misaligned with the orthographic projection of the isolation structure on the substrate, and the second electrode not overlapping the isolation structure on the second side.

[0006] In conjunction with the first aspect, the orthographic projection of the end of the first electrode near the first side onto the substrate lies within the orthographic projection of the isolation structure onto the substrate; preferably, the second electrode is electrically connected to the isolation structure on the first side; optionally, the distance between the orthographic projection of the end of the first electrode of the light-emitting unit near the first side onto the substrate and the orthographic projection of the corresponding first opening on the sidewall on the second side onto the substrate is a first distance, and the distance between the orthographic projection of the end of the second electrode of the light-emitting unit near the first side onto the substrate and the orthographic projection of the corresponding first opening on the sidewall on the second side onto the substrate is a second distance, the first distance being greater than the second distance; the distance between the orthographic projection of the end of the first electrode of the light-emitting unit near the second side onto the substrate and the orthographic projection of the corresponding first opening on the sidewall on the second side onto the substrate is a third distance, and the distance between the orthographic projection of the end of the second ... second electrode of the light-emitting unit near the second side onto the substrate is a third distance, and the distance between the orthographic projection of the second electrode of the light-emitting unit near The distance between the shadows is the fourth distance, and the third distance is greater than the fourth distance; preferably, the isolation structure includes a first part and a second part stacked sequentially along the direction away from the substrate, the first distance being the distance between the orthographic projection of the end of the first electrode near the first side on the substrate and the orthographic projection of the sidewall of the second part located on the second side of the corresponding first opening on the substrate; and / or, the second distance being the distance between the orthographic projection of the end of the second electrode near the first side on the substrate and the orthographic projection of the sidewall of the second part located on the second side of the corresponding first opening on the substrate; and / or, the third distance being the distance between the orthographic projection of the end of the first electrode near the second side on the substrate and the orthographic projection of the sidewall of the second part located on the second side of the corresponding first opening on the substrate; and / or, the second distance being the distance between the orthographic projection of the end of the second electrode near the second side on the substrate and the orthographic projection of the sidewall of the second part located on the second side of the corresponding first opening on the substrate.

[0007] In conjunction with the first aspect, the isolation structure further encloses and forms at least one second opening, which is disposed between two adjacent first openings; preferably, the orthographic projection of the wall of the second opening onto the substrate is offset from the orthographic projection of the first electrode onto the substrate; preferably, along the first direction, the distance from the center of the second opening to the sidewalls of the two adjacent first openings is different; preferably, along the first direction, the first opening includes a first sub-opening and a second sub-opening, the second opening is located between the first sub-opening and the second sub-opening, the distance from the center of the second opening to the sidewall of the first sub-opening is a fifth distance, the distance from the center of the second opening to the sidewall of the second sub-opening is a sixth distance, the fifth distance is less than the sixth distance, wherein the first... The second side of the sub-opening is close to the second opening, and the first side of the second sub-opening is close to the second opening; preferably, the isolation structure includes a first part and a second part stacked sequentially along the direction away from the substrate, the fifth distance is the distance from the center of the second opening to the sidewall of the second part located on the second side of the first sub-opening, and the sixth distance is the distance from the center of the second opening to the sidewall of the second part located on the first side of the second sub-opening; preferably, the shape of the orthographic projection of the wall surface of the second opening on the substrate includes at least one of a circle, an ellipse, a triangle, a quadrilateral, a pentagon, a hexagon, and an octagon; preferably, a second opening is provided between at least a portion of the first openings; preferably, a second opening is provided between any two first openings.

[0008] In conjunction with the first aspect, along the first direction, the first opening includes a first sub-opening and a second sub-opening, and the second opening is located between the first sub-opening and the second sub-opening. The distance between the orthographic projection of the end of the first electrode of the light-emitting unit corresponding to the first sub-opening near the second side on the substrate and the orthographic projection of the sidewall of the second opening near the first sub-opening on the substrate is a seventh distance. The distance between the orthographic projection of the end of the first electrode of the light-emitting unit corresponding to the second sub-opening near the first side on the substrate and the orthographic projection of the sidewall of the second opening near the second sub-opening on the substrate is an eighth distance. The seventh distance is greater than the eighth distance. The second side of the first sub-opening is close to the second opening, and the first side of the second sub-opening is close to the second opening. Preferably, the isolation structure includes a first part and a second part stacked sequentially along the direction away from the substrate. The seventh distance is the distance between the orthographic projection of the end of the first electrode of the light-emitting unit corresponding to the first sub-opening near the second side on the substrate and the orthographic projection of the sidewall of the second part located in the second opening and close to the first sub-opening on the substrate. The eighth distance is the distance between the orthographic projection of the end of the first electrode of the light-emitting unit corresponding to the second sub-opening near the first side on the substrate and the orthographic projection of the sidewall of the second part located in the second opening and close to the second sub-opening on the substrate.

[0009] In conjunction with the first aspect, the isolation structure includes a first part and a second part stacked sequentially along a direction away from the substrate, wherein the orthographic projection of the first part on the substrate lies within the orthographic projection of the second part on the substrate, and a second electrode is electrically connected to the first part on a first side; preferably, the isolation structure further includes a third part located near the substrate in the first part, wherein the orthographic projection of the first part on the substrate lies within the orthographic projection of the third part on the substrate, and a second electrode is electrically connected to the first part on a first side, and / or, the second electrode is electrically connected to the third part on a first side; preferably, the material of the first part includes aluminum, and / or, the material of the second part includes titanium; and / or, the material of the third part includes molybdenum.

[0010] In conjunction with the first aspect, the display panel further includes a pixel definition layer located between the substrate and the isolation structure. The pixel definition layer encloses a plurality of pixel openings, which are connected to a first opening. The orthographic projection of the wall of the pixel opening onto the substrate lies within the orthographic projection of the wall of the first opening onto the substrate. The pixel opening exposes a portion of the first electrode. Preferably, the isolation structure further encloses at least one second opening, which is disposed between two adjacent first openings. A portion of the pixel definition layer is exposed to the second opening, and a portion of the pixel definition layer is not exposed to the second opening. The thickness of the portion of the pixel definition layer exposed to the second opening in the direction perpendicular to the substrate is less than or equal to the thickness of the portion of the pixel definition layer not exposed to the second opening in the direction perpendicular to the substrate. Preferably, the light-emitting unit further includes a light-emitting functional layer. The light-emitting functional layer is located between the first electrode and the second electrode; preferably, the orthographic projection of the second electrode on the substrate covers the orthographic projection of the light-emitting functional layer on the substrate; preferably, the display panel further includes a first encapsulation layer, which is located on the side of the light-emitting unit away from the substrate, and includes a plurality of spaced-apart encapsulation units, which correspond to the light-emitting units, and the orthographic projection of the light-emitting unit on the substrate at least partially overlaps with the orthographic projection of the encapsulation unit on the substrate; preferably, the display panel further includes a second encapsulation layer and a third encapsulation layer stacked sequentially along the direction away from the substrate, which are located on the side of the first encapsulation layer away from the substrate; preferably, the materials of the first encapsulation layer and the third encapsulation layer include inorganic materials; and / or, the material of the second encapsulation layer includes organic materials.

[0011] Secondly, embodiments of this application also provide a display panel, comprising: a substrate; an isolation structure located on one side of the substrate, the isolation structure enclosing to form a plurality of first openings and at least one second opening, the second opening being located between two adjacent first openings; a plurality of light-emitting units, at least a portion of the light-emitting units being located within the first openings, the light-emitting units including a first electrode, the orthographic projection of the wall of the second opening onto the substrate being offset from the orthographic projection of the first electrode onto the substrate.

[0012] In conjunction with the second aspect, the first opening has a first side and a second side disposed opposite to each other along a first direction. Along the first direction, the distances from the center of the second opening to the sidewalls of two adjacent first openings are different. Preferably, along the first direction, the first opening includes a first sub-opening and a second sub-opening, with the second opening located between the first and second sub-openings. The distance from the center of the second opening to the sidewall of the first sub-opening is a fifth distance, and the distance from the center of the second opening to the sidewall of the second sub-opening is a sixth distance, where the fifth distance is less than the sixth distance. The second side of the first sub-opening is closer to the second opening, and the first side of the second sub-opening is closer to the second opening. Preferably, the orthographic projection of the end of the first electrode near the second side on the substrate is offset from the orthographic projection of the isolation structure on the substrate. The orthographic projection of the end of the first electrode near the first side on the substrate is located within the orthographic projection of the isolation structure on the substrate. Preferably, Along the first direction, the distance between the orthographic projection of the end of the first electrode of the light-emitting unit corresponding to the first sub-opening near the second side on the substrate and the orthographic projection of the sidewall of the second opening near the first sub-opening on the substrate is a seventh distance, and the distance between the orthographic projection of the end of the first electrode of the light-emitting unit corresponding to the second sub-opening near the first side on the substrate and the orthographic projection of the sidewall of the second opening near the second sub-opening on the substrate is an eighth distance. The seventh distance is greater than the eighth distance. The second side of the first sub-opening is close to the second opening, and the first side of the second sub-opening is close to the second opening. Preferably, the light-emitting unit further includes a second electrode, which is located on the side of the first electrode away from the substrate. The second electrode is electrically connected to the isolation structure on the first side, and the second electrode and the isolation structure are not overlapped on the second side. Preferably, the light-emitting unit further includes a light-emitting functional layer, which is located between the first electrode and the second electrode.

[0013] Thirdly, embodiments of this application also provide a display panel, comprising: a substrate; an isolation structure located on one side of the substrate, the isolation structure enclosing a plurality of first openings, the first openings having a first side and a second side disposed opposite to each other along a first direction; a plurality of light-emitting units, at least a portion of the light-emitting units being located within the first openings, the light-emitting units including a first electrode, the orthographic projection of the end of the first electrode near the second side on the substrate being misaligned with the orthographic projection of the isolation structure on the substrate, and the orthographic projection of the end of the first electrode near the first side on the substrate being located within the orthographic projection of the isolation structure on the substrate.

[0014] In conjunction with the third aspect, the isolation structure further encloses and forms at least one second opening, which is disposed between two adjacent first openings; preferably, the orthographic projection of the wall of the second opening onto the substrate is offset from the orthographic projection of the first electrode onto the substrate; preferably, along the first direction, the first opening includes a first sub-opening and a second sub-opening, the second opening is located between the first sub-opening and the second sub-opening, the distance from the center of the second opening to the sidewall of the first sub-opening is a fifth distance, the distance from the center of the second opening to the sidewall of the second sub-opening is a sixth distance, the fifth distance is less than the sixth distance, wherein the second side of the first sub-opening is close to the second opening, and the first side of the second sub-opening is close to the second opening; preferably, along the first direction, the first electrode of the light-emitting unit corresponding to the first sub-opening is close to the end of the second side. The distance between the orthographic projection of the part on the substrate and the orthographic projection of the sidewall of the second opening near the first sub-opening on the substrate is the seventh distance. The distance between the orthographic projection of the end of the first electrode of the light-emitting unit corresponding to the second sub-opening near the first side on the substrate and the orthographic projection of the sidewall of the second opening near the second sub-opening on the substrate is the eighth distance. The seventh distance is greater than the eighth distance. The second side of the first sub-opening is close to the second opening, and the first side of the second sub-opening is close to the second opening. Preferably, the light-emitting unit further includes a second electrode, which is located on the side of the first electrode away from the substrate. The second electrode is electrically connected to the isolation structure on the first side, and the second electrode and the isolation structure are not overlapped on the second side. Preferably, the light-emitting unit further includes a light-emitting functional layer, which is located between the first electrode and the second electrode.

[0015] Fourthly, embodiments of this application also provide a method for manufacturing a display panel, comprising: fabricating a plurality of first electrodes spaced apart on a substrate; fabricating an isolation structure on the side of the plurality of first electrodes away from the substrate, the isolation structure enclosing a plurality of first openings, the orthographic projection of the first openings on the substrate overlapping the orthographic projection of the first electrodes on the substrate, the first openings having a first side and a second side disposed opposite to each other along a first direction; fabricating a plurality of second electrodes on the side of the isolation structure away from the substrate, the second electrodes being located within the first openings, the orthographic projection of the end of the first electrode near the second side on the substrate being misaligned with the orthographic projection of the isolation structure on the substrate, the second electrodes and the isolation structure not overlapping on the second side.

[0016] In conjunction with the fourth aspect, an isolation structure is fabricated on the side of the plurality of first electrodes facing away from the substrate, comprising: sequentially fabricating a first material layer and a second material layer on the side of the first electrodes facing away from the substrate; patterning the first material layer and the second material layer to obtain a first part and a second part, the first part and the second part constituting an isolation structure, the isolation structure being provided with a first opening and at least one second opening, the second opening being located between two adjacent first openings, and the orthographic projection of the wall surface of the second opening on the substrate being offset from the orthographic projection of the first electrode on the substrate; preferably, fabricating an isolation structure on the side of the plurality of first electrodes facing away from the substrate comprises: sequentially fabricating a third material layer, a first material layer and a second material layer on the side of the first electrodes facing away from the substrate; patterning the third material layer, the first material layer and the second material layer to obtain a third part, a first part and a second part, the third part, the first part and the second part constituting an isolation structure.

[0017] In conjunction with the fourth aspect, after fabricating the isolation structure, the fabrication method further includes: fabricating an insulating material layer on the side of the plurality of first electrodes facing away from the substrate; and, after fabricating the isolation structure, the fabrication method further includes: patterning the insulating material layer to form a pixel definition layer, the pixel definition layer enclosing a plurality of pixel openings, the orthographic projection of the wall of the pixel opening on the substrate being located within the orthographic projection of the wall of the first opening on the substrate; preferably, before the step of fabricating a plurality of second electrodes on the side of the isolation structure facing away from the substrate, the fabrication method further includes: fabricating a plurality of light-emitting functional layers on the side of the isolation structure facing away from the substrate, the light-emitting functional layers being located within the first openings, the orthographic projection of the second electrodes on the substrate covering... The method further includes: a first encapsulation layer on the substrate, wherein the first electrode, the light-emitting functional layer, and the second electrode constitute a light-emitting unit; preferably, after the step of fabricating a plurality of second electrodes on the side of the isolation structure away from the substrate, the method further includes: fabricating a first encapsulation layer on the side of the second electrode away from the substrate, the first encapsulation layer including a plurality of encapsulation units spaced apart, the encapsulation units corresponding to the light-emitting units, and the orthogonal projection of the encapsulation units on the substrate at least partially overlapping the orthogonal projection of the light-emitting units on the substrate; preferably, after the step of fabricating the first encapsulation layer on the side of the second electrode away from the substrate, the method further includes: sequentially fabricating a second encapsulation layer and a third encapsulation layer on the side of the first encapsulation layer away from the substrate.

[0018] Fifthly, embodiments of this application also provide a display device, including: the display panel described above, or a display panel prepared according to the preparation method described above; wherein, the isolation structure is provided with at least one second opening; a photosensitive element, wherein the orthographic projection of the photosensitive element on the substrate overlaps with the orthographic projection of the wall of the second opening on the substrate. Attached Figure Description

[0019] Figure 1 This is a schematic cross-sectional view of a display panel provided in an embodiment of this application.

[0020] Figure 2 This is a cross-sectional structural diagram of a display panel provided in another embodiment of this application.

[0021] Figure 3a This is a top view schematic diagram of the isolation structure of a display panel provided in an embodiment of this application.

[0022] Figure 3b This is a top view of the isolation structure of a display panel provided in another embodiment of this application.

[0023] Figure 4 This is a cross-sectional structural diagram of a display panel provided in another embodiment of this application.

[0024] Figure 5 This is a cross-sectional structural diagram of a display panel provided in another embodiment of this application.

[0025] Figure 6 This is a schematic flowchart of a method for manufacturing a display panel according to an embodiment of this application.

[0026] Figures 7a to 7e This is a schematic diagram of the fabrication process of a display panel provided in one embodiment of this application.

[0027] Figure 8 This is a schematic diagram of the structure of a display device provided in an embodiment of this application. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] In this application, no photomask is required; instead, a full-area vapor deposition process is used to individually vapor-deposit and encapsulate light-emitting units (also known as different sub-pixels) of different colors. Alignment accuracy during vapor deposition is not a concern, allowing for smaller gaps between light-emitting units and thus increasing pixel density. In this method, an isolation structure is placed between adjacent light-emitting units to separate them. However, the inventors discovered that during the fabrication of ambient light apertures, these apertures can damage the anode, resulting in dark spots on the display panel. Furthermore, during cathode vapor deposition, ensuring sufficient overlap of the cathode with the isolation structure leads to a thicker cathode film, affecting the viewing angle of the display panel.

[0030] To address the aforementioned technical problems, this application provides a display panel comprising a substrate, an isolation structure, and a plurality of light-emitting units. The isolation structure is located on one side of the substrate and encloses a plurality of first openings. Each first opening has a first side and a second side disposed opposite to each other along a first direction. At least a portion of the plurality of light-emitting units is located within the first openings. Each light-emitting unit includes a first electrode and a second electrode sequentially stacked along a direction away from the substrate. The orthographic projection of the end of the first electrode near the second side onto the substrate is misaligned with the orthographic projection of the isolation structure onto the substrate. The second electrode and the isolation structure do not overlap on the second side. In this application embodiment, one side of the first electrode does not extend below the isolation structure, reducing the size of the first electrode. During the fabrication of the display panel, this reduces damage to the first electrode from the etching solution, avoiding or improving display dark spots.

[0031] The technical solutions of this application are described below through multiple embodiments. It should be understood that the following embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this application.

[0032] Figure 1 This is a schematic cross-sectional view of a display panel provided in one embodiment of this application. Figure 1 As shown, the display panel includes a substrate 10, an isolation structure 40, and multiple light-emitting units 30.

[0033] In the embodiments of this application, the substrate 10 includes a rigid substrate, such as a glass substrate; or the substrate 10 includes a flexible substrate, such as polyimide (PI), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), etc.

[0034] The isolation structure 40 is located on one side of the substrate 10, and the isolation structure 40 encloses and forms a plurality of first openings 401, the first openings 401 having a first direction ( Figure 1 The x-direction in the middle is relative to the first side 4011 and the first side 4012.

[0035] At least a portion of the light-emitting unit 30 is located within the first opening 401. The light-emitting unit 30 includes a first electrode 310 and a second electrode 330 sequentially stacked along a direction away from the substrate 10. The orthographic projection of the end of the first electrode 310 near the first side 4012 on the substrate 10 is misaligned with the orthographic projection of the isolation structure 40 on the substrate 10; that is, the orthographic projection of the end of the first electrode 310 near the first side 4012 on the substrate 10 does not overlap with the orthographic projection of the isolation structure 40 on the substrate 10. The second electrode 330 and the isolation structure 40 do not overlap on the second side 4012; that is, the second electrode 330 and the isolation structure 40 are not electrically connected on the second side 4012. For example, the orthographic projection of the end of the second electrode 330 near the second side 4012 on the substrate 10 is spaced apart from the orthographic projection of the isolation structure 40 on the substrate 10. In this embodiment, one side of the first electrode 310 does not extend below the isolation structure 40, which reduces the size of the first electrode 310. In subsequent processes, this can reduce the damage of the etching solution to the first electrode 310 and avoid or improve dark spots.

[0036] Optionally, the orthographic projection of the end of the first electrode 310 near the first side 4011 on the substrate 10 lies within the orthographic projection of the isolation structure 40 on the substrate 10. Thus, during etching of the isolation structure 40, the etching solution can uniformly etch the sidewalls of the isolation structure 40, ensuring the flatness of the isolation structure 40 on the first side 4011, which is beneficial for the second electrode 330 to overlap on the first side 4011. Optionally, the second electrode 330 is electrically connected to the isolation structure 40 on the first side 4011. In this embodiment, the second electrode 330 overlaps on one side of the isolation structure 40, which can improve viewing angle distortion and further enhance the display effect.

[0037] In the embodiments of this application, such as Figure 1 As shown, the distance between the orthographic projection of the end of the first electrode 310 of the light-emitting unit 30 near the first side 4011 on the substrate 10 and the orthographic projection of the corresponding first opening 401 on the sidewall of the second side 4012 on the substrate 10 is the first distance a1, and the distance between the orthographic projection of the end of the second electrode 330 of the light-emitting unit 30 near the first side 4011 on the substrate 10 and the orthographic projection of the corresponding first opening 401 on the sidewall of the second side 4012 on the substrate 10 is the second distance a2, wherein the first distance a1 is greater than the second distance a2. Optionally, the distance between the orthographic projection of the end of the first electrode 310 of the light-emitting unit 30 near the second side 4012 on the substrate 10 and the orthographic projection of the corresponding first opening 401 on the sidewall of the second side 4012 on the substrate 10 is a third distance b1, and the distance between the orthographic projection of the end of the second electrode 330 of the light-emitting unit 30 near the second side 4012 on the substrate 10 and the orthographic projection of the corresponding first opening 401 on the sidewall of the second side 4012 on the substrate 10 is a fourth distance b2, wherein the third distance b1 is greater than the fourth distance b2.

[0038] In this embodiment, the second electrode 330 overlaps with the isolation structure 40 on one side, which can improve viewing angle distortion and further enhance the display effect. On the overlapping side of the second electrode 330 (i.e., the first side 4011), the first electrode 310 extends below the isolation structure 40. Thus, when etching the isolation structure 40, the etching solution can uniformly etch the sidewalls of the isolation structure 40, ensuring the flatness of the isolation structure 40 on the first side 4011, which is beneficial for the second electrode 330 to overlap on the first side 4011. On the non-overlapping side of the second electrode 330 (i.e., the second side 4012), the first electrode 310 does not extend below the isolation structure 40, and the distance between the first electrode 310 and the second side 4012 of the first opening 401 is greater than the distance between the second electrode 330 and the second side 4012 of the first opening 401. This avoids the etching solution from losing the first electrode 310 during the subsequent fabrication of the ambient light aperture.

[0039] In some cases, it is necessary to install a photosensitive element on a display device. In order not to affect the display effect, the photosensitive element is usually placed in a non-pixel area. In the embodiments of this application, the non-pixel area has an isolation structure 40. Since the isolation structure 40 is made of metal, an ambient light aperture needs to be opened on the isolation structure 40 to facilitate the photosensitive element to sense light.

[0040] Figure 2 This is a cross-sectional structural diagram of a display panel provided in another embodiment of this application. Figure 2 The display panel shown is Figure 1 The difference in the display panel shown is that the isolation structure 40 is further provided with at least one second opening 402, which is located between two adjacent first openings 401. In this embodiment, the second opening 402 is etched simultaneously when the first opening 401 is formed in the isolation structure 40. Since the pixel definition layer 20 is an inorganic material and is relatively thin, it is easy to over-etch, exposing the anode (i.e., the first electrode 310). In subsequent processes, the exposed anode may be damaged by the etching solution, forming dark spots. Therefore, in this embodiment, the orthographic projection of the wall of the second opening 402 on the substrate 10 is misaligned with the orthographic projection of the first electrode 310 on the substrate 10. In this way, the first electrode 310 can be avoided from being exposed when the second opening 402 is formed, thereby avoiding damage to the first electrode 310.

[0041] In this embodiment, the orthographic projection of the wall surface of the first opening 401 onto the substrate 10 includes at least one of a circle, ellipse, triangle, quadrilateral (e.g., rectangle), pentagon, hexagon, and octagon. Optionally, the orthographic projection of the wall surface of the second opening 402 onto the substrate 10 includes at least one of a circle, ellipse, triangle, quadrilateral (e.g., rectangle), pentagon, hexagon, and octagon. In this embodiment, the orthographic projection of the wall surface of the first opening 401 onto the substrate 10 and the orthographic projection of the wall surface of the second opening 402 onto the substrate 10 may be the same or different, and this embodiment does not impose any limitation. Optionally, a second opening 402 is provided between at least a portion of the first openings 401, such as... Figure 3a As shown, for example, the second opening 402 is disposed in a specific area of ​​the display panel. Alternatively, a second opening 402 is disposed between any two first openings 401, such as... Figure 3b As shown, the second opening 402 is provided over the entire area of ​​the display panel. In this embodiment, the size and number of the second opening 402 can be determined according to actual needs, and this embodiment does not impose any limitations.

[0042] Continue to refer to Figure 2 Along the first direction, the distances from the center of the second opening 402 to the sidewalls of the two adjacent first openings 401 are different. Optionally, along the first direction, the first opening 401 includes a first sub-opening 403 and a second sub-opening 404, and the second opening 402 is located between the first sub-opening 403 and the second sub-opening 404. The distance from the center of the second opening 402 to the sidewall of the first sub-opening 403 is a fifth distance c1, and the distance from the center of the second opening 402 to the sidewall of the second sub-opening 404 is a sixth distance c2, where the fifth distance c1 is less than the sixth distance c2. The second side 4012 of the first sub-opening 403 is closer to the second opening 402, and the first side 4011 of the second sub-opening 404 is closer to the second opening 402. In this embodiment, the second opening 402 is biased toward the first side 4012, that is, it is biased toward the side where the first electrode 310 does not extend into the isolation structure 40. This ensures that the orthographic projection of the second opening 402 on the substrate 10 does not overlap with the orthographic projection of the first electrode 310 on the substrate 10, thus avoiding anode damage.

[0043] Optionally, along the first direction, the distance between the orthographic projection of the end of the first electrode 310 of the light-emitting unit 30 corresponding to the first sub-opening 403 near the second side 4012 on the substrate 10 and the orthographic projection of the sidewall of the second opening 402 near the first sub-opening 403 on the substrate 10 is a seventh distance d1, and the distance between the orthographic projection of the end of the first electrode 310 of the light-emitting unit 30 corresponding to the second sub-opening 404 near the first side 4011 on the substrate 10 and the orthographic projection of the sidewall of the second opening 402 near the second sub-opening 404 on the substrate 10 is an eighth distance d2, where the seventh distance d1 is greater than the eighth distance d2. In this embodiment, the first electrode 310 does not extend below the isolation structure 40 on the first side 4012, and the second opening 402 can be biased towards the first side 4012. Thus, the first electrode 310 does not restrict the size of the second opening 402, which is beneficial for opening a larger second opening 402.

[0044] Continue to refer to Figure 2 The isolation structure 40 includes a first part 410 and a second part 420 stacked sequentially along the direction away from the substrate 10. The orthographic projection of the first part 410 on the substrate 10 is located within the orthographic projection of the second part 420 on the substrate 10. The second electrode 330 is electrically connected to the first part 410 on the first side 4011.

[0045] Optionally, the first distance a1 is the orthographic projection on the substrate 10 of the end of the first electrode 310 near the first side 4011 and the orthographic projection on the substrate 10 of the sidewall of the second part 420 located at the corresponding first opening 401 of the second side 4012. The second distance a2 is the distance on the substrate 10 of the orthographic projection on the substrate 10 of the end of the second electrode 330 near the first side 4011 and the orthographic projection on the substrate 10 of the sidewall of the second part 420 located at the corresponding first opening 401 of the second side 4012. The third distance b1 is the distance on the substrate 10 of the orthographic projection on the substrate 10 of the end of the first electrode 310 near the second side 4012 and the orthographic projection on the substrate 10 of the sidewall of the second part 420 located at the corresponding first opening 401 of the second side 4012. The fourth distance b2 is the distance on the substrate 10 of the orthographic projection on the substrate 10 of the end of the second electrode 330 near the second side 4012 and the orthographic projection on the substrate 10 of the sidewall of the second part 420 located at the corresponding first opening 401 of the second side 4012. The fifth distance c1 is the distance from the center of the second opening 402 to the sidewall of the second part 420 located on the second side 4012 of the first sub-opening 403. The sixth distance c2 is the distance from the center of the second opening 402 to the sidewall of the second part 420 located on the first side 4011 of the second sub-opening 404. The seventh distance d1 is the distance between the orthographic projection of the end of the first electrode 310 of the light-emitting unit 30 corresponding to the first sub-opening 403 near the second side 4012 on the substrate 10 and the orthographic projection of the sidewall of the second part 420 located on the second opening 402 and near the first sub-opening 403 on the substrate 10. The eighth distance d2 is the distance between the orthographic projection of the end of the first electrode 310 of the light-emitting unit 30 corresponding to the second sub-opening 404 near the first side 4011 on the substrate 10 and the orthographic projection of the sidewall of the second part 420 located on the second opening 402 and near the second sub-opening 404 on the substrate 10.

[0046] Optionally, Figure 4 This is a cross-sectional structural diagram of a display panel provided in another embodiment of this application. Figure 4 The display panel shown is Figure 2 The difference in the display panel shown is that the isolation structure 40 also includes a third portion 430 located near the substrate 10 in the first portion 410, with the orthographic projection of the first portion 410 on the substrate 10 falling within the orthographic projection of the third portion 430 on the substrate 10. The second electrode 330 is electrically connected to the first portion 410 on the first side 4011, and / or, the second electrode 330 is electrically connected to the third portion 430 on the first side 4011. Optionally, the material of the first portion 410 includes aluminum; and / or, the material of the second portion 420 includes titanium; and / or, the material of the third portion 430 includes molybdenum.

[0047] Continue to refer to Figure 2 and Figure 4The display panel also includes a pixel definition layer 20. The pixel definition layer 20 is located between the substrate 10 and the isolation structure 40, and encloses a plurality of pixel openings 201. The pixel openings 201 communicate with a first opening 401, and the orthographic projection of the wall of the pixel opening 201 onto the substrate 10 lies within the orthographic projection of the wall of the first opening 401 onto the substrate 10. A portion of the pixel opening 201 exposes the first electrode 310. Optionally, a portion of the pixel definition layer 20 is exposed to a second opening 402, and a portion of the pixel definition layer 20 is not exposed to the second opening 402. The thickness of the portion of the pixel definition layer 20 exposed to the second opening 402 in the direction perpendicular to the substrate 10 is less than or equal to the thickness of the portion of the pixel definition layer 20 not exposed to the second opening 402 in the direction perpendicular to the substrate 10. In some cases, during the fabrication of the second opening 402, a portion of the pixel definition layer 20 may be etched, such that the thickness of the pixel definition layer 20 at the corresponding second opening 402 is less than that at other locations. Because the pixel definition layer 20 is relatively thin, it may be etched through in some cases.

[0048] Optionally, the light-emitting unit 30 further includes a light-emitting functional layer 320, which is located between the first electrode 310 and the second electrode 330. The orthographic projection of the second electrode 330 onto the substrate 10 overlaps with the orthographic projection of the light-emitting functional layer 320 onto the substrate 10. The display panel also includes a first encapsulation layer 510, which is located on the side of the light-emitting unit 30 facing away from the substrate 10. The first encapsulation layer 510 includes a plurality of spaced-apart encapsulation units 511, which correspond to the light-emitting unit 30. The orthographic projection of the light-emitting unit 30 onto the substrate 10 at least partially overlaps with the orthographic projection of the encapsulation unit 511 onto the substrate 10; for example, the orthographic projection of the encapsulation unit 511 onto the substrate 10 overlaps with the orthographic projection of the light-emitting unit 30 onto the substrate 10. Optionally, the material of the first encapsulation layer 510 includes an inorganic material.

[0049] In some embodiments, the display panel uses a thin-film encapsulation process, meaning the display panel includes three encapsulation layers.

[0050] Figure 5 This is a cross-sectional structural diagram of a display panel provided in another embodiment of this application. Figure 5 The display panel shown is Figure 2 The difference in the display panel shown is that it further includes a second encapsulation layer 520 and a third encapsulation layer 530 sequentially stacked along a direction away from the substrate 10. The second encapsulation layer 520 and the third encapsulation layer 530 are located on the side of the first encapsulation layer 510 facing away from the substrate 10. Optionally, the materials of the first encapsulation layer 510 and the third encapsulation layer 530 include inorganic materials, and / or the material of the second encapsulation layer 520 includes organic materials.

[0051] This application embodiment also provides a display panel, specifically as follows: Figures 1 to 5 As shown, the display panel includes a substrate 10, an isolation structure 40, and a plurality of light-emitting units 30. The isolation structure 40 is located on one side of the substrate 10, and encloses a plurality of first openings 401 and at least one second opening 402, with the second opening 402 located between two adjacent first openings 401. At least a portion of the light-emitting unit 30 is located within a first opening 401, and the light-emitting unit 30 includes a first electrode 310. The orthographic projection of the wall of the second opening 402 onto the substrate 10 is offset from the orthographic projection of the first electrode 310 onto the substrate 10. In this embodiment, by creating a second opening 402 on the isolation structure 40, and ensuring that the orthographic projection of the wall of the second opening 402 onto the substrate 10 does not overlap with the orthographic projection of the first electrode 310 onto the substrate 10, damage to the anode by the etching solution can be avoided, preventing dark spots from appearing on the display.

[0052] This embodiment can be combined with some or all of the features in the above embodiments, which will not be repeated here.

[0053] This application embodiment also provides a display panel, specifically as follows: Figures 1 to 5 As shown, the display panel includes a substrate 10, an isolation structure 40, and a plurality of light-emitting units 30. The isolation structure 40 is located on one side of the substrate 10 and encloses a plurality of first openings 401. Each first opening 401 has a first side 4011 and a first side 4012 disposed opposite to each other along a first direction. At least a portion of each light-emitting unit 30 is located within the first opening 401. Each light-emitting unit 30 includes a first electrode 310. The orthographic projection of the end of the first electrode 310 near the first side 4012 on the substrate 10 is offset from the orthographic projection of the isolation structure 40 on the substrate 10. The orthographic projection of the end of the first electrode 310 near the first side 4011 on the substrate 10 lies within the orthographic projection of the isolation structure 40 on the substrate 10. In this embodiment, the first electrode 310 extends into the space below the isolation structure 40 on one side, reducing the size of the first electrode 310. During fabrication, this avoids damage to the anode by the etching solution, thus improving the display effect.

[0054] This embodiment can be combined with some or all of the features in the above embodiments, which will not be repeated here.

[0055] This application also provides a method for fabricating a display panel, comprising: fabricating a plurality of first electrodes spaced apart on a substrate; fabricating an isolation structure on the side of the plurality of first electrodes facing away from the substrate, the isolation structure enclosing a plurality of first openings, the orthographic projection of the first openings on the substrate overlapping the orthographic projection of the first electrodes on the substrate, the first openings having a first side and a second side disposed opposite to each other along a first direction; fabricating a plurality of second electrodes on the side of the isolation structure facing away from the substrate, the second electrodes being located within the first openings, the orthographic projection of the end of the first electrode near the second side on the substrate being misaligned with the orthographic projection of the isolation structure on the substrate, the second electrodes and the isolation structure not overlapping on the second side. In this application embodiment, one side of the first electrode does not extend below the isolation structure, reducing the size of the first electrode, which can reduce the damage of the etching solution to the first electrode during the fabrication of the display panel, avoiding or improving display dark spots.

[0056] Figure 6 This is a schematic flowchart of a method for manufacturing a display panel according to an embodiment of this application. Figures 7a to 7e This is a schematic diagram of the fabrication process of a display panel according to an embodiment of this application. Figure 6 As shown, the preparation method includes the following steps.

[0057] Step S610: A plurality of first electrodes spaced apart are fabricated on the substrate.

[0058] In this embodiment, a first electrode material is substrateed on a substrate, and the first electrode material is etched to obtain a plurality of first electrodes. In this embodiment, as... Figure 7a As shown, multiple first electrodes 310 are evenly arranged along the first direction (i.e., the x-direction).

[0059] Step S620: An isolation structure is prepared on the side of the plurality of first electrodes facing away from the substrate.

[0060] Optionally, a first material layer and a second material layer are sequentially fabricated on the side of the first electrode facing away from the substrate; the first and second material layers are patterned to obtain a first part and a second part, which constitute an isolation structure. Figure 7b As shown, the isolation structure 40 encloses a plurality of first openings 401 and at least one second opening 402. The first opening 401 has a first side 4011 and a second side 4012 disposed opposite to each other along a first direction. The second opening 402 is located between two adjacent first openings 401, and the orthographic projection of the wall of the second opening 402 on the substrate 10 is misaligned with the orthographic projection of the first electrode 310 on the substrate 10.

[0061] Optionally, in other embodiments, the fabrication method includes: sequentially fabricating a third material layer, a first material layer, and a second material layer on the side of the first electrode away from the substrate; and patterning the third material layer, the first material layer, and the second material layer to obtain a third part, a first part, and a second part, wherein the third part, the first part, and the second part constitute an isolation structure.

[0062] Optionally, before fabricating the isolation structure, the fabrication method further includes: fabricating an insulating material layer 210 on the side of the plurality of first electrodes 310 facing away from the substrate 10, such as... Figure 7b As shown; and, after fabricating the isolation structure, the fabrication method further includes: patterning the insulating material layer 210 to form a pixel definition layer 20, as shown. Figure 7c As shown, the pixel definition layer 20 encloses a plurality of pixel openings 201, the pixel openings 201 expose a portion of the first electrode 310, and the orthographic projection of the wall of the pixel opening 201 on the substrate 10 is located within the orthographic projection of the wall of the first opening 401 on the substrate 10.

[0063] Step S630: A plurality of second electrodes are fabricated on the side of the isolation structure away from the substrate.

[0064] In this embodiment, multiple second electrodes are fabricated on the side of the isolation structure away from the substrate, such that the second electrodes are electrically connected to the isolation structure on the first side but not overlapped on the second side. For example... Figure 7d As shown in the embodiment of this application, the second electrode 330 is located inside the first opening 401. The second electrode 330 and the isolation structure 40 are not connected on the second side 4012. The orthographic projection of the end of the first electrode 310 near the second side 4012 on the substrate 10 is misaligned with the orthographic projection of the isolation structure 40 on the substrate 10.

[0065] Optionally, before the step of fabricating multiple second electrodes on the side of the isolation structure away from the substrate, the fabrication method further includes: fabricating multiple light-emitting functional layers 320 on the side of the isolation structure 40 away from the substrate 10. For example... Figure 7d As shown, the light-emitting functional layer 320 is located within the first opening 401, and the orthogonal projection of the second electrode 330 on the substrate 10 covers the orthogonal projection of the light-emitting functional layer 320 on the substrate 10. The first electrode 310, the light-emitting functional layer 320, and the second electrode 330 constitute the light-emitting unit 30.

[0066] Optionally, after the step of fabricating multiple second electrodes on the side of the isolation structure away from the substrate, the fabrication method further includes: fabricating a first encapsulation layer on the side of the second electrodes away from the substrate. For example... Figure 7d As shown, the first encapsulation layer 510 includes a plurality of encapsulation units 511 arranged at intervals. The encapsulation unit 511 corresponds to the light-emitting unit 30. The orthographic projection of the encapsulation unit 511 on the substrate 10 at least partially overlaps with the orthographic projection of the light-emitting unit 30 on the substrate 10.

[0067] Optionally, after fabricating the first encapsulation layer, the fabrication method further includes: sequentially fabricating a second encapsulation layer 520 and a third encapsulation layer 530 on the side of the first encapsulation layer 510 facing away from the substrate, to obtain... Figure 7e The structure shown.

[0068] This application provides a display device, which includes the display panel described in the above embodiments.

[0069] Figure 8 This is a schematic diagram of the structure of a display device provided in an embodiment of this application. Figure 8 As shown, display device 800 is a product with image display capabilities. For example, display device 800 can be used to display static images, such as pictures or photographs. Display device 800 can also be used to display moving images, such as videos.

[0070] The display device 800 can be a laptop computer, mobile phone, handheld or portable computer, camera, camcorder, in-vehicle smart central control screen, calculator, smartwatch, GPS navigator, electronic photo, electronic billboard or sign, projector, etc.

[0071] The display device 800 includes the display panel provided in any of the above embodiments. The display panel may be an organic light-emitting diode (OLED) display panel or a quantum dot electroluminescent display panel. For example... Figures 1 to 5 As shown, the display panel includes an isolation structure 40, which has at least one second opening 402. In this embodiment, the second opening 402 is only provided at a specific location on the display panel, or the second opening 402 can be provided across the entire surface; this embodiment does not impose any limitations. The display device also includes a photosensitive element 802, the orthographic projection of the photosensitive element 802 on the substrate 10 overlapping with the orthographic projection of the wall of the second opening 402 on the substrate 10. For example, the orthographic projection of the photosensitive element 802 on the substrate 10 lies within the orthographic projection of the wall of the second opening 402 on the substrate 10. The number of photosensitive elements 802 is the same as the number of second openings 402.

[0072] In addition, the display device 800 can also perform functions such as taking photos, recording videos, fingerprint recognition, and facial recognition. Accordingly, the display device 800 also includes at least one functional module for implementing the above functions, such as an under-display camera or an under-display fingerprint recognition sensor.

[0073] The basic principles of this application have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this application are merely examples and not limitations, and should not be considered as essential features of each embodiment of this application. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the application to the necessity of employing the aforementioned specific details for implementation.

[0074] The block diagrams of devices, apparatuses, devices, and systems involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, devices, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.

[0075] It should also be noted that in the apparatus, equipment, and methods of this application, the components or steps can be disassembled and / or recombined. These disassemblies and / or recombinations should be considered as equivalent solutions of this application.

[0076] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use this application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of this application. Therefore, this application is not intended to be limited to the aspects shown herein, but rather to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0077] The above description has been given for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of this application to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

[0078] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A display panel, characterized in that, include: substrate; An isolation structure is located on one side of the substrate, and the isolation structure encloses and forms a plurality of first openings, the first openings having a first side and a second side disposed opposite to each other along a first direction; Multiple light-emitting units are provided, at least a portion of which is located within the first opening. Each light-emitting unit includes a first electrode and a second electrode stacked sequentially along a direction away from the substrate. The orthographic projection of the end of the first electrode near the second side on the substrate is misaligned with the orthographic projection of the isolation structure on the substrate. The second electrode and the isolation structure do not overlap on the second side.

2. The display panel according to claim 1, characterized in that, The orthographic projection of the end of the first electrode near the first side on the substrate lies within the orthographic projection of the isolation structure on the substrate; Preferably, the second electrode is electrically connected to the isolation structure on the first side; Preferably, the distance between the orthographic projection of the end of the first electrode of the light-emitting unit near the first side on the substrate and the orthographic projection of the corresponding sidewall of the first opening on the second side on the substrate is a first distance, and the distance between the orthographic projection of the end of the second electrode of the light-emitting unit near the first side on the substrate and the orthographic projection of the corresponding sidewall of the first opening on the second side on the substrate is a second distance, wherein the first distance is greater than the second distance. Preferably, the distance between the orthographic projection of the end of the first electrode of the light-emitting unit near the second side on the substrate and the orthographic projection of the corresponding sidewall of the first opening on the second side on the substrate is a third distance, and the distance between the orthographic projection of the end of the second electrode of the light-emitting unit near the second side on the substrate and the orthographic projection of the corresponding sidewall of the first opening on the second side on the substrate is a fourth distance, wherein the third distance is greater than the fourth distance. Preferably, the isolation structure includes a first part and a second part stacked sequentially along a direction away from the substrate, wherein the first distance is the distance between the orthographic projection of the end of the first electrode near the first side on the substrate and the orthographic projection of the sidewall of the second part located on the second side of the corresponding first opening on the substrate; and / or, the second distance is the distance between the orthographic projection of the end of the second electrode near the first side on the substrate and the orthographic projection of the sidewall of the second part located on the second side of the corresponding first opening on the substrate; and / or, the third distance is the distance between the orthographic projection of the end of the first electrode near the second side on the substrate and the orthographic projection of the sidewall of the second part located on the second side of the corresponding first opening on the substrate; and / or, the second distance is the distance between the orthographic projection of the end of the second electrode near the second side on the substrate and the orthographic projection of the sidewall of the second part located on the second side of the corresponding first opening on the substrate.

3. The display panel according to claim 1, characterized in that, The isolation structure also encloses at least one second opening, which is disposed between two adjacent first openings; Preferably, the orthographic projection of the wall of the second opening onto the substrate is offset from the orthographic projection of the first electrode onto the substrate; Preferably, along the first direction, the distance from the center of the second opening to the sidewall of the two adjacent first openings is different; Preferably, along the first direction, the first opening includes a first sub-opening and a second sub-opening, the second opening is located between the first sub-opening and the second sub-opening, the distance from the center of the second opening to the sidewall of the first sub-opening is a fifth distance, the distance from the center of the second opening to the sidewall of the second sub-opening is a sixth distance, the fifth distance is less than the sixth distance, wherein the second side of the first sub-opening is close to the second opening, and the first side of the second sub-opening is close to the second opening; Preferably, the isolation structure includes a first part and a second part stacked sequentially along a direction away from the substrate, the fifth distance is the distance from the center of the second opening to the sidewall of the second part located on the second side of the first sub-opening, and the sixth distance is the distance from the center of the second opening to the sidewall of the second part located on the first side of the second sub-opening; Preferably, the shape of the orthographic projection of the wall of the second opening onto the substrate includes at least one of a circle, an ellipse, a triangle, a quadrilateral, a pentagon, a hexagon, and an octagon. Preferably, a second opening is provided between at least a portion of the first openings; Preferably, a second opening is provided between any two of the first openings.

4. The display panel according to claim 1, characterized in that, Along the first direction, the first opening includes a first sub-opening and a second sub-opening, the second opening being located between the first sub-opening and the second sub-opening, the distance between the orthographic projection of the end of the first electrode of the light-emitting unit corresponding to the first sub-opening near the second side on the substrate and the orthographic projection of the sidewall of the second opening near the first sub-opening on the substrate is a seventh distance, the distance between the orthographic projection of the end of the first electrode of the light-emitting unit corresponding to the second sub-opening near the first side on the substrate and the orthographic projection of the sidewall of the second opening near the second sub-opening on the substrate is an eighth distance, the seventh distance being greater than the eighth distance, wherein the second side of the first sub-opening is close to the second opening, and the first side of the second sub-opening is close to the second opening; Preferably, the isolation structure includes a first part and a second part stacked sequentially along a direction away from the substrate; the seventh distance is the distance between the orthographic projection of the end of the first electrode of the light-emitting unit corresponding to the first sub-opening on the substrate near the second side and the orthographic projection of the sidewall of the second part located in the second opening and near the first sub-opening on the substrate; the eighth distance is the distance between the orthographic projection of the end of the first electrode of the light-emitting unit corresponding to the second sub-opening on the substrate near the first side and the orthographic projection of the sidewall of the second part located in the second opening and near the second sub-opening on the substrate.

5. The display panel according to any one of claims 1 to 4, characterized in that, The isolation structure includes a first part and a second part that are sequentially stacked along a direction away from the substrate. The orthographic projection of the first part on the substrate is located within the orthographic projection of the second part on the substrate. The second electrode is electrically connected to the first part on the first side. Preferably, the isolation structure further includes a third part located near the substrate of the first part, wherein the orthographic projection of the first part on the substrate is located within the orthographic projection of the third part on the substrate, the second electrode is electrically connected to the first part on the first side, and / or the second electrode is electrically connected to the third part on the first side; Preferably, the material of the first part includes aluminum, and / or the material of the second part includes titanium; and / or the material of the third part includes molybdenum.

6. The display panel according to claim 5, characterized in that, The display panel further includes a pixel definition layer located between the substrate and the isolation structure. The pixel definition layer encloses a plurality of pixel openings, which are connected to the first opening. The orthographic projection of the wall of the pixel opening on the substrate is located within the orthographic projection of the wall of the first opening on the substrate. The pixel opening exposes a portion of the first electrode; Preferably, the isolation structure further encloses at least one second opening, the second opening being disposed between two adjacent first openings; A portion of the pixel definition layer is exposed to the second opening, and a portion of the pixel definition layer is not exposed to the second opening. The thickness of the portion of the pixel definition layer exposed to the second opening in the direction perpendicular to the substrate is less than or equal to the thickness of the portion of the pixel definition layer not exposed to the second opening in the direction perpendicular to the substrate. Preferably, the light-emitting unit further includes a light-emitting functional layer, which is located between the first electrode and the second electrode; Preferably, the orthogonal projection of the second electrode on the substrate covers the orthogonal projection of the light-emitting functional layer on the substrate; Preferably, the display panel further includes a first encapsulation layer located on the side of the light-emitting unit away from the substrate. The first encapsulation layer includes a plurality of encapsulation units spaced apart, each encapsulation unit corresponding to the light-emitting unit. The orthographic projection of the light-emitting unit on the substrate and the orthographic projection of the encapsulation unit on the substrate at least partially overlap. Preferably, the display panel further includes a second encapsulation layer and a third encapsulation layer stacked sequentially along a direction away from the substrate, wherein the second encapsulation layer and the third encapsulation layer are located on the side of the first encapsulation layer away from the substrate; Preferably, the materials of the first encapsulation layer and the third encapsulation layer include inorganic materials; and / or, the material of the second encapsulation layer includes organic materials.

7. A display panel, characterized in that, include: substrate; An isolation structure is located on one side of the substrate, the isolation structure enclosing and forming a plurality of first openings and at least one second opening, the second opening being located between two adjacent first openings; A plurality of light-emitting units, at least a portion of which are located within the first opening, each light-emitting unit including a first electrode, wherein the orthographic projection of the wall of the second opening onto the substrate is offset from the orthographic projection of the first electrode onto the substrate.

8. The display panel according to claim 7, characterized in that, The first opening has a first side and a second side disposed opposite to each other along a first direction, and along the first direction, the distance from the center of the second opening to the sidewall of two adjacent first openings is different; Preferably, along the first direction, the first opening includes a first sub-opening and a second sub-opening, the second opening is located between the first sub-opening and the second sub-opening, the distance from the center of the second opening to the sidewall of the first sub-opening is a fifth distance, the distance from the center of the second opening to the sidewall of the second sub-opening is a sixth distance, the fifth distance is less than the sixth distance, wherein the second side of the first sub-opening is close to the second opening, and the first side of the second sub-opening is close to the second opening; Preferably, the orthographic projection of the end of the first electrode near the second side on the substrate is offset from the orthographic projection of the isolation structure on the substrate; the orthographic projection of the end of the first electrode near the first side on the substrate is located within the orthographic projection of the isolation structure on the substrate. Preferably, along the first direction, the distance between the orthographic projection of the end of the first electrode of the light-emitting unit corresponding to the first sub-opening near the second side on the substrate and the orthographic projection of the sidewall of the second opening near the first sub-opening on the substrate is a seventh distance, and the distance between the orthographic projection of the end of the first electrode of the light-emitting unit corresponding to the second sub-opening near the first side on the substrate and the orthographic projection of the sidewall of the second opening near the second sub-opening on the substrate is an eighth distance, wherein the seventh distance is greater than the eighth distance, and the second side of the first sub-opening is close to the second opening, and the first side of the second sub-opening is close to the second opening; Preferably, the light-emitting unit further includes a second electrode, which is located on the side of the first electrode away from the substrate. The second electrode is electrically connected to the isolation structure on the first side, and the second electrode and the isolation structure are not overlapped on the second side. Preferably, the light-emitting unit further includes a light-emitting functional layer, which is located between the first electrode and the second electrode.

9. A display panel, characterized in that, include: substrate; An isolation structure is located on one side of the substrate, and the isolation structure encloses and forms a plurality of first openings, the first openings having a first side and a second side disposed opposite to each other along a first direction; A plurality of light-emitting units, at least a portion of which are located within the first opening, each light-emitting unit including a first electrode, wherein the orthographic projection of the end of the first electrode near the second side on the substrate is offset from the orthographic projection of the isolation structure on the substrate, and the orthographic projection of the end of the first electrode near the first side on the substrate is located within the orthographic projection of the isolation structure on the substrate.

10. The display panel according to claim 9, characterized in that, The isolation structure also encloses at least one second opening, which is disposed between two adjacent first openings; Preferably, the orthographic projection of the wall of the second opening onto the substrate is offset from the orthographic projection of the first electrode onto the substrate; Preferably, along the first direction, the first opening includes a first sub-opening and a second sub-opening, the second opening is located between the first sub-opening and the second sub-opening, the distance from the center of the second opening to the sidewall of the first sub-opening is a fifth distance, the distance from the center of the second opening to the sidewall of the second sub-opening is a sixth distance, the fifth distance is less than the sixth distance, wherein the second side of the first sub-opening is close to the second opening, and the first side of the second sub-opening is close to the second opening; Preferably, along the first direction, the distance between the orthographic projection of the end of the first electrode of the light-emitting unit corresponding to the first sub-opening near the second side on the substrate and the orthographic projection of the sidewall of the second opening near the first sub-opening on the substrate is a seventh distance, and the distance between the orthographic projection of the end of the first electrode of the light-emitting unit corresponding to the second sub-opening near the first side on the substrate and the orthographic projection of the sidewall of the second opening near the second sub-opening on the substrate is an eighth distance, wherein the seventh distance is greater than the eighth distance, and the second side of the first sub-opening is close to the second opening, and the first side of the second sub-opening is close to the second opening; Preferably, the light-emitting unit further includes a second electrode, which is located on the side of the first electrode away from the substrate. The second electrode is electrically connected to the isolation structure on the first side, and the second electrode and the isolation structure are not overlapped on the second side. Preferably, the light-emitting unit further includes a light-emitting functional layer, which is located between the first electrode and the second electrode.

11. A method for manufacturing a display panel, characterized in that, include: A plurality of first electrodes spaced apart are fabricated on a substrate; An isolation structure is prepared on the side of the plurality of first electrodes away from the substrate. The isolation structure encloses and forms a plurality of first openings. The orthographic projection of the first opening on the substrate overlaps with the orthographic projection of the first electrode on the substrate. The first opening has a first side and a second side that are disposed opposite to each other along a first direction. A plurality of second electrodes are fabricated on the side of the isolation structure away from the substrate. The second electrodes are located in the first opening. The orthographic projection of the end of the first electrode near the second side on the substrate is misaligned with the orthographic projection of the isolation structure on the substrate. The second electrodes and the isolation structure do not overlap on the second side.

12. The method for manufacturing a display panel according to claim 11, characterized in that, The step of fabricating an isolation structure on the side of the plurality of first electrodes away from the substrate includes: A first material layer and a second material layer are sequentially prepared on the side of the first electrode away from the substrate; The first material layer and the second material layer are patterned to obtain a first part and a second part. The first part and the second part constitute the isolation structure. The isolation structure is provided with a first opening and at least one second opening. The second opening is located between two adjacent first openings. The orthographic projection of the wall of the second opening on the substrate is offset from the orthographic projection of the first electrode on the substrate. Preferably, the step of fabricating an isolation structure on the side of the plurality of first electrodes away from the substrate includes: sequentially fabricating a third material layer, a first material layer, and a second material layer on the side of the first electrodes away from the substrate; and patterning the third material layer, the first material layer, and the second material layer to obtain a third part, a first part, and a second part, wherein the third part, the first part, and the second part constitute the isolation structure.

13. The method for manufacturing a display panel according to claim 11, characterized in that, After fabricating the isolation structure, the fabrication method further includes: fabricating an insulating material layer on the side of the plurality of first electrodes facing away from the substrate; and, after fabricating the isolation structure, the fabrication method further includes: patterning the insulating material layer to form a pixel definition layer, the pixel definition layer enclosing a plurality of pixel openings, the orthographic projection of the wall of the pixel opening on the substrate being located within the orthographic projection of the wall of the first opening on the substrate; Preferably, before the step of fabricating a plurality of second electrodes on the side of the isolation structure away from the substrate, the fabrication method further includes: fabricating a plurality of light-emitting functional layers on the side of the isolation structure away from the substrate, wherein the light-emitting functional layers are located within the first opening, and the orthogonal projection of the second electrode on the substrate covers the orthogonal projection of the light-emitting functional layer on the substrate, wherein the first electrode, the light-emitting functional layer and the second electrode constitute a light-emitting unit; Preferably, after the step of fabricating a plurality of second electrodes on the side of the isolation structure away from the substrate, the fabrication method further includes: fabricating a first encapsulation layer on the side of the second electrodes away from the substrate, the first encapsulation layer including a plurality of encapsulation units spaced apart, the encapsulation units corresponding to the light-emitting units, and the orthographic projection of the encapsulation units on the substrate at least partially overlapping the orthographic projection of the light-emitting units on the substrate; Preferably, after the step of preparing the first encapsulation layer on the side of the second electrode away from the substrate, the preparation method further includes: sequentially preparing a second encapsulation layer and a third encapsulation layer on the side of the first encapsulation layer away from the substrate.

14. A display device, characterized in that, include: The display panel according to any one of claims 1 to 10, or the display panel prepared by the preparation method according to any one of claims 11 to 13; wherein the isolation structure is provided with at least one second opening; A photosensitive element, wherein the orthographic projection of the photosensitive element on the substrate overlaps with the orthographic projection of the wall of the second opening on the substrate.

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