Display panel, pixel arrangement structure and display device

Abstract

The embodiment of the invention provides a display panel, a pixel arrangement structure and a display device. The display panel comprises a substrate; the isolation structure comprises a first isolation opening, the orthographic projection pattern of the first isolation opening on the substrate comprises a first edge, and the included angle between the extension direction of the first edge and the first direction is larger than or equal to 0 degree and smaller than or equal to 10 degrees; a light-emitting functional layer; the first electrode is located on the side, away from the substrate, of the light-emitting functional layer and is in lap joint with the isolation structure; wherein the substrate comprises scanning lines, and the first direction is the extension direction of the scanning lines located in the display area; or, the substrate comprises data lines, and the first direction is the extension direction of the data lines located in the display area; or, the display panel is provided with a first sub-edge, and the first direction is the extension direction of the first sub-edge; or the display panel is further provided with a non-display area at least partially surrounding the display area, the non-display area comprises a binding area, and the binding area is located on one side of the display area in the first direction.

Description

Display panel, pixel arrangement structure and display device

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application No. 202311346196.5, filed on October 17, 2023, entitled “Display Panel, Display Panel Preparation Method and Display Device,” and the entire contents of that application are incorporated herein by reference. Technical Field

[0003] The present application belongs to the field of display technology, and in particular to a display panel, a pixel arrangement structure, and a display device. Background Art

[0004] Organic Light Emitting Diode (OLED) and flat-panel display devices based on technologies such as Light Emitting Diode (LED) have been widely used in various consumer electronic products such as mobile phones, televisions, laptops, and desktop computers due to their advantages such as high image quality, power saving, thin body, and wide range of applications, becoming the mainstream display device.

[0005] However, the performance of current OLED display products needs to be improved.

[0006] Summary of the Invention

[0007] Embodiments of the present application provide a display panel, a pixel arrangement structure, and a display device, aiming to improve the performance of the display panel.

[0008] An embodiment of the first aspect of the present application provides a display panel having a display area, the display panel comprising: a substrate; an isolation structure arranged on one side of the substrate, the isolation structure being provided with an isolation opening, the isolation opening comprising a first isolation opening, the first isolation opening comprising a first edge in the orthographic projection pattern of the substrate, the angle between the extension direction of the first edge and the first direction being greater than or equal to 0° and less than or equal to 10°; a light-emitting functional layer, the light-emitting functional layer being at least partially located within the isolation opening; a first electrode, the first electrode being located on the side of the light-emitting functional layer away from the substrate and overlapping the isolation structure; wherein the substrate comprises a scan line, the first direction being the extension direction of the scan line located in the display area; or, the substrate comprises a data line, the first direction being the extension direction of the data line located in the display area; or, the display panel has a first sub-edge, the first direction being the extension direction of the first sub-edge; or, the display panel further comprises a non-display area at least partially surrounding the display area, the non-display area comprising a binding area, the binding area being located on one side of the display area in the first direction.

[0009] An embodiment of the second aspect of the present application further provides a display panel, comprising: a substrate; an isolation structure, arranged on one side of the substrate, the isolation structure being provided with an isolation opening, the isolation opening comprising a first isolation opening, the first isolation opening comprising a first side and a second side in the orthographic projection pattern of the substrate; a light-emitting functional layer, the light-emitting functional layer being at least partially located within the isolation opening; a first electrode, the first electrode being located on the side of the light-emitting functional layer facing away from the substrate, the first electrode comprising a first sub-portion and a second sub-portion, the first sub-portion of the first electrode being a portion of the first electrode in contact with an inner wall surface of the isolation structure corresponding to the first side, the second sub-portion of the first electrode being a portion of the first electrode in contact with an inner wall surface of the isolation structure corresponding to the second side, the inner wall surface of the isolation structure being a surface of the isolation structure facing the isolation opening; wherein, in a cross section along the thickness direction of the display panel, a length by which the first sub-portion of the first electrode contacts the inner wall surface of the isolation structure is a first overlap length, a length by which the second sub-portion of the first electrode contacts the inner wall surface of the isolation structure is a second overlap length, and the first overlap length is greater than the second overlap length.

[0010] An embodiment of the third aspect of the present application also provides a pixel arrangement structure, including multiple first pixel groups; the first pixel groups are arranged along a first direction and a second direction, respectively, the first direction intersects with the second direction, and the pixel groups include: a first sub-pixel, the first sub-pixel is located inside a virtual polygon, and the first sub-pixel includes a third side, and the angle between the extension direction of the third side and the first direction is greater than or equal to 0° and less than or equal to 10°; a second sub-pixel, the center of the second sub-pixel coincides with the first vertex in the virtual polygon; and a third sub-pixel, the center of the third sub-pixel coincides with the second vertex in the virtual polygon adjacent to the first vertex.

[0011] An embodiment of the fourth aspect of the present application further provides a display device, comprising a display panel of any of the above embodiments.

[0012] The display panel provided in the embodiment of the present application includes a substrate, an isolation structure, a light-emitting unit and a first electrode. The first isolation opening includes a first edge in the orthographic projection pattern of the substrate. The angle between the extension direction of the first edge and the first direction or the second direction perpendicular to the first direction is greater than or equal to 0° and less than or equal to 10°. The inventors have found through research that when the angle between the extension direction of the first edge and the first direction or the second direction is greater than or equal to 0° and less than or equal to 10°, the overlapping effect of the evaporated material of the first electrode in the isolation opening can be improved, the probability of the light-emitting unit and the first electrode falling off can be reduced, and the impedance between the first electrode and the isolation structure can be reduced, thereby improving the performance of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0014] FIG1 is a schematic diagram of a top view of a display panel provided in an embodiment of the present application;

[0015] FIG2 is a schematic diagram of an enlarged structure of position B in FIG1 in an example;

[0016] FIG3 is a cross-sectional view of a point CC in FIG2 in an example;

[0017] FIG4 is a schematic top view of another display panel provided in an embodiment of the present application;

[0018] FIG5 is a cross-sectional view of a point CC in FIG2 in another example;

[0019] FIG6 is a schematic diagram of an enlarged structure of position F in FIG5 in an example;

[0020] FIG7 is a cross-sectional view of a point DD in FIG2 in an example;

[0021] FIG8 is a schematic diagram of an enlarged structure of the U position in FIG7 in an example;

[0022] FIG9 is an enlarged structural diagram of position B in FIG1 in another example;

[0023] FIG10 is a schematic diagram of a top view of an exemplary light emitting unit;

[0024] FIG11 is a schematic top view of another display panel provided in an embodiment of the present application;

[0025] FIG12 is a schematic diagram of a top view of the structure of a display panel in a first display area provided by an embodiment of the present application;

[0026] FIG13 is a schematic diagram of a top view of the structure of a display panel in a second display area provided by an embodiment of the present application;

[0027] FIG14 is a schematic top view of another display panel provided in an embodiment of the present application;

[0028] FIG15 is a schematic top view of another exemplary light emitting unit;

[0029] FIG16 is a schematic top view of a light emitting unit according to another embodiment;

[0030] FIG17 is a schematic top view of another exemplary light emitting unit;

[0031] FIG18 is a schematic top view of another exemplary light emitting unit;

[0032] FIG19 is a schematic top view of another exemplary light emitting unit;

[0033] FIG20 is a schematic top view of a light emitting unit according to another embodiment;

[0034] FIG21 is a cross-sectional view of a point OO in FIG12 in an example;

[0035] FIG22 is a schematic structural diagram of a pixel arrangement structure provided by an embodiment of the present application;

[0036] FIG23 is a schematic structural diagram of another pixel arrangement structure provided in an embodiment of the present application;

[0037] FIG24 is a schematic structural diagram of another pixel arrangement structure provided in an embodiment of the present application;

[0038] FIG25 is a schematic structural diagram of another pixel arrangement structure provided in an embodiment of the present application;

[0039] FIG26 is a structural diagram of another pixel arrangement structure provided in an embodiment of the present application. DETAILED DESCRIPTION

[0040] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In the detailed description below, many specific details are set forth in order to provide a comprehensive understanding of the present application. However, it will be apparent to those skilled in the art that the present application can be implemented without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by illustrating examples of the present application. In the accompanying drawings and the following description, at least some of the well-known structures and technologies are not shown in order to avoid unnecessary ambiguity in the present application; and, for clarity, the sizes of some structures may be exaggerated. In addition, the features, structures, or characteristics described below may be combined in any suitable manner in one or more embodiments.

[0041] In the description of this application, it should be noted that, unless otherwise specified, "plurality" means more than two. Terms such as "upper," "lower," "left," "right," "inner," and "outer" to indicate directions or positional relationships are intended solely for the purpose of facilitating the description of this application and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting this application. Furthermore, terms such as "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0042] The directional words appearing in the following description are all directions shown in the figures, and do not limit the specific structure of the embodiments of this application. In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "installation" 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. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0043] In order to better understand the present application, the display panel, pixel arrangement structure and display device of the embodiment of the present application are described in detail below with reference to the accompanying drawings Figures 1 to 26.

[0044] Please refer to Figures 1 to 4, Figure 1 is a schematic diagram of the top structure of a display panel 10 provided in an embodiment of the present application; Figure 2 is an enlarged structural schematic diagram of position B in Figure 1 in an example; Figure 3 is a cross-sectional view of position CC in Figure 2 in an example; Figure 4 is a schematic diagram of the top structure of another display panel 10 provided in an embodiment of the present application.

[0045] As shown in Figures 1 to 4, an embodiment of the present application provides a display panel 10 having a display area AA, the display panel 10 comprising: a substrate 1; an isolation structure 2, disposed on one side of the substrate 1, the isolation structure 2 having an isolation opening K, the isolation opening K comprising a first isolation opening K1, the orthographic projection of the first isolation opening K1 on the substrate 1 comprising a first side B1, the angle between the extension direction of the first side B1 and the first direction x or the second direction y being greater than or equal to 0° and less than or equal to 10°; a light-emitting functional layer 3, the light-emitting functional layer 3 being at least partially located within the isolation opening K; a first electrode 4, the first electrode 4 being located on the side of the light-emitting functional layer 3 facing away from the substrate 1 and being aligned with the isolation structure 1. 2 overlap; wherein the substrate 1 includes scan lines SCAN, and the first direction x is the extending direction of the scan lines SCAN located in the display area AA; or, the second direction y is the extending direction of the scan lines SCAN located in the display area AA; or, the substrate 1 includes data lines DATA, and the first direction x is the extending direction of the data lines DATA located in the display area AA; or, the display panel 10 has a first sub-edge L1, and the first direction x is the extending direction of the first sub-edge L1; or, the display panel 10 further includes a non-display area NA that at least partially surrounds the display area AA, and the non-display area NA includes a binding area BA, and the binding area BA is located on one side of the display area AA in the first direction x. The first direction x and the second direction y intersect. Exemplarily, the first direction x and the second direction y are parallel to the surface of the substrate 1, and the first direction x is perpendicular to the second direction y. Exemplarily, the display panel 10 is a polygon, and the first sub-edge L1 of the display panel 10 is a side of the polygon. Exemplarily, the display panel 10 is rectangular, and the first sub-edge L1 is the long side of the rectangle.

[0046] The display panel 10 provided in the embodiment of the present application includes a substrate 1, an isolation structure 2, a light-emitting unit and a first electrode 4. The positive projection pattern of the first isolation opening K1 on the substrate 1 includes a first side B1, and the angle between the extension direction of the first side B1 and the first direction x or the second direction y is greater than or equal to 0° and less than or equal to 10°. The inventors have found through research that when an evaporation source is used to evaporate the first electrode 4, when the angle between the extension direction of the first side B1 and the first direction x or the second direction y is greater than or equal to 0° and less than or equal to 10°, the overlapping effect of the evaporated material of the first electrode 4 in the isolation opening K can be improved, the probability of the light-emitting functional layer 3 and the first electrode 4 falling off can be reduced, and at the same time, the impedance between the first electrode 4 and the isolation structure 2 can be reduced, thereby improving the performance of the display panel 10. It should be noted that the angle between the edge of the isolation opening K and the first direction x or the second direction y is not between 0° and 10°. For example, when the angle between the edge of the isolation opening K and the first direction x or the second direction y is greater than 10°, when the first electrode 4 is evaporated using an evaporation source, the overlap impedance between the first electrode 4 and the isolation structure 2 is too high, exceeding the limit value corresponding to ensuring the product display effect, resulting in poor overlap.

[0047] It should be noted that, in this embodiment, the angle between the extension direction of the first side B1 and the first direction x or the second direction y is greater than or equal to 0° and less than or equal to 10°, which means that the acute angle formed between the extension direction of the first side B1 and the first direction x or the second direction y is greater than or equal to 0° and less than or equal to 10°.

[0048] It should be noted that in the embodiments of this document, the angle between the extension direction of the first side B1 and the first direction x or the second direction y is greater than or equal to 0° and less than or equal to 10°, which means that in the same display panel, the extension directions of all first sides B1 are such that the angle between them and the first direction x is greater than or equal to 0° and less than or equal to 10°, and the side whose angle between the extension direction and the first direction x is not between 0° and 10° is the second side B2; or, in the same display panel, the extension directions of all first sides B1 are such that the angle between them and the second direction y is greater than or equal to 0° and less than or equal to 10°, and the side whose angle between the extension direction and the second direction y is not between 0° and 10° is the second side B2. In the embodiments of this document, the angle between the extension direction of the first side B1 and the first direction x or the second direction y is greater than or equal to 0° and less than or equal to 10°, which means that when there are multiple display panels, the angle between the extension direction of the first side B1 of all display panels and the first direction x is greater than or equal to 0° and less than or equal to 10°; or, the angle between the extension direction of the first side B1 of a part of the display panels and the first direction x is greater than or equal to 0° and less than or equal to 10°; the angle between the extension direction of the first side B1 of another part of the display panels and the second direction y is greater than or equal to 0° and less than or equal to 10°; or, the angle between the extension direction of the first side B1 of all display panels and the second direction y is greater than or equal to 0° and less than or equal to 10°, where, exemplarily, the first direction x can be the column direction of the display panel, or the extension direction of the data line, and the second direction y can be the row direction of the display panel, or the extension direction of the scan line.

[0049] Among them, patents CN118251982A, 202410864269.8, PCT / CN2024 / 098407, PCT / CN2024 / 102783, PCT / CN2024 / 098217, PCT / CN2024 / 100935, PCT / CN2024 / 102785, PCT / CN2024 / 099419, PCT / CN2024 / 099072, and CN116685174A record relevant technical solutions for isolation structures and encapsulation layers, and their contents are incorporated into this application by reference for reference.

[0050] Optionally, the first side B1 is a straight line segment.

[0051] Referring to FIG. 4 , optionally, the substrate 1 includes a scan line SCAN, the second direction y is the extension direction of the scan line SCAN located in the display area AA, the first direction x and the second direction y are perpendicular, the angle between the extension direction of the first side B1 and the first direction x is greater than or equal to 0° and less than or equal to 10°, the first direction x can be the vertical direction of the display panel 10, i.e., the column direction, and the second direction y can be the horizontal direction of the display panel 10, i.e., the row direction. In another embodiment, the first direction x and the second direction y are interchanged, the substrate 1 includes a scan line SCAN, the first direction x is the extension direction of the scan line SCAN located in the display area AA, i.e., the first direction x can be the horizontal direction of the display panel 10, i.e., the row direction, and the second direction y can be the vertical direction of the display panel 10, i.e., the column direction.

[0052] Please refer to Figure 4. Optionally, the substrate 1 includes a data line DATA. The first direction x is parallel to the extension direction of the data line DATA located in the display area AA. The data line DATA generally extends along the up and down directions of the display panel 10. The angle between the extension direction of the first side B1 and the first direction x is greater than or equal to 0° and less than or equal to 10°.

[0053] Referring to FIG. 4 , optionally, the display panel 10 has a first sub-edge L1 , and the first direction x is an extending direction of the first sub-edge L1 .

[0054] Referring to FIG1 , the display panel 10 optionally further includes a non-display area NA that at least partially surrounds the display area AA. The non-display area NA includes a binding area BA. The binding area BA is located on one side of the display area AA in a first direction x. For example, the binding area BA is located at the lower frame of the non-display area NA. The first direction x is the up-down direction of the display panel 10, i.e., the column direction. Correspondingly, the angle between the extension direction of the first side B1 and the first direction x is greater than or equal to 0° and less than or equal to 10°. Alternatively, the angle between the extension direction of the first side B1 and the second direction y is greater than or equal to 0° and less than or equal to 10°. Correspondingly, the angle between the extension direction of the first side B1 and the first direction x is greater than or equal to 80° and less than or equal to 90°.

[0055] Optionally, the first side B1 is a straight line segment or an arc segment. When the first side B1 includes an arc segment, the extension direction of the first side B1 includes the extension direction of the tangent segment at different points of the arc segment, that is, the angle between the extension direction of the tangent segment of the first side B1 at any point and the first direction x or the second direction y is greater than or equal to 0° and less than or equal to 10°.

[0056] Optionally, the substrate 1 may include a substrate and an array layer, and the array layer may include a driving circuit. For example, the array layer may include a first conductive layer, a second conductive layer, and a third conductive layer that are arranged on one side of the substrate and stacked. An insulating layer is provided between adjacent conductive film layers. Exemplarily, the pixel driving circuit provided in the array layer includes a transistor V and a storage capacitor. The transistor V includes an active layer W, a gate G, a source S, and a drain D. The material of the source S and the gate G may include a combination of one or more of molybdenum, titanium, aluminum, copper, etc. The gate G of the transistor is generally used to receive a control signal so that the transistor is turned on or off under the control of the control signal. One of the source S and the drain D of the thin film transistor is connected to the light-emitting unit to control the normal light emission of the light-emitting unit.

[0057] Optionally, the light-emitting functional layer 3 includes one or more of an electron injection layer, an electron transport layer, a light-emitting material layer, a hole blocking layer, an electron blocking layer, a hole transport layer, and a hole injection layer. Specific selection can be made according to the specific type of the light-emitting layer and is not particularly limited.

[0058] Optionally, the material of the first electrode 4 can be one of the metal materials such as silver (Ag), aluminum (Al), lithium (Li), magnesium (Mg), ytterbium (Yb), calcium (Ca) or indium (In), or an alloy of the aforementioned metal materials, such as magnesium-silver alloy (Mg / Ag) and lithium-aluminum alloy (Li / Al), which is not limited in this embodiment.

[0059] In some optional embodiments, the first electrode 4 includes a first sub-portion 41, and the first sub-portion 41 of the first electrode 4 is the portion of the first electrode 4 that contacts the inner wall surface of the isolation structure 2 corresponding to the first side B1, and the inner wall surface of the isolation structure 2 is the surface of the isolation structure 2 facing the isolation opening K.

[0060] Through research and experiments conducted by the inventors, it was found that when the angle between the extension direction of the first side B1 and the first direction x or the second direction y is greater than or equal to 0° and less than or equal to 10°, the contact area between the first sub-portion 41 and the inner wall surface of the isolation structure 2 can be increased, thereby improving the overlapping effect of the first electrode 4 and the isolation structure 2.

[0061] Please refer to Figure 3. In some optional embodiments, along the direction away from the substrate 1, the isolation structure 2 includes a first isolation portion 21 and a second isolation portion 22 that are stacked together, and the orthographic projection of the first isolation portion 21 on the substrate 1 is located within the orthographic projection of the second isolation portion 22 on the substrate 1.

[0062] In this embodiment, the isolation structure 2 may include a first isolation portion 21 and a second isolation portion 22. The orthographic projection of the first isolation portion 21 on the substrate 1 is located within the orthographic projection of the second isolation portion 22 on the substrate 1, that is, the orthographic projection area of ​​the first isolation portion 21 on the substrate 1 is less than or equal to the orthographic projection area of ​​the second isolation portion 22 on the substrate 1. For example, when the orthographic projection area of ​​the first isolation portion 21 on the substrate 1 is less than the orthographic projection area of ​​the second isolation portion 22 on the substrate 1, the cross-section of the first isolation portion 21 and the second isolation portion 22 along the direction perpendicular to the plane of the substrate 1 can be in a "T" shape, so as to utilize the isolation structure 2 to realize a patterned light-emitting functional layer 3 and a first electrode 4.

[0063] Please refer to Figures 5 to 6. In some optional embodiments, in a cross-section along the thickness direction of the display panel 10, the first electrode 4 includes a first end Z1, which is the edge of the first sub-portion 41 of the first electrode 4 away from the substrate 1; the isolation structure 2 includes a first surface M1 close to the substrate 1, and along the thickness direction of the display panel 10, the distance between the first end Z1 of the first electrode 4 and the extension surface of the first surface M1 is a first climbing height P1, and the first climbing height P1 is greater than or equal to three quarters of the height N of the first isolation portion 21.

[0064] In this embodiment, the side wall of the first isolation portion 21 facing the isolation opening K corresponds to the inner wall surface of the isolation structure 2, that is, the first electrode 4 and the first isolation portion 21 are in contact, and the first end Z1 is the edge of the first sub-portion 41 of the first electrode 4 away from the substrate 1. The first end Z1 is the highest point of the first sub-portion 41 corresponding to the first side B1. Along the thickness direction of the display panel 10, the distance between the first end Z1 of the first electrode 4 and the extension surface of the first surface M1 is the first climbing height P1. The higher the first climbing height P1, the larger the contact area between the first sub-portion 41 and the first isolation portion 21, and the better the overlapping effect. Therefore, this embodiment limits the first climbing height P1 to be greater than or equal to three-quarters of the height N of the first isolation portion 21 to ensure that the first sub-portion 41 and the first isolation portion 21 have sufficient contact area, thereby improving the overlapping effect.

[0065] In some optional embodiments, the orthographic projection of the opening formed by the second isolation portion 22 on the substrate 1 coincides with the orthographic projection of the corresponding isolation opening K on the substrate 1, that is, the shape and size of the opening formed by the second isolation portion 22 determine the shape and size of the isolation opening K, and a portion of the opening formed by the second isolation portion 22 corresponds to the first isolation opening K1, and the first side B1 corresponds to the orthographic projection of the portion of the side wall of the second isolation portion 22 in the direction of the opening enclosed by it on the substrate 1, that is, by adjusting the extension direction of the orthographic projection of the portion of the side wall of the second isolation portion 22 in the direction of the opening enclosed by it on the substrate 1, the angle between the extension direction of the first side B1 and the first direction x or the second direction y can be greater than or equal to 0° and less than or equal to 10°.

[0066] Please refer to Figures 5 to 6. In some optional embodiments, the isolation structure 2 also includes a third isolation portion 23 located on the side of the first isolation portion 21 away from the second isolation portion 22, the orthographic projection of the first isolation portion 21 on the substrate 1 is located within the orthographic projection of the third isolation portion 23 on the substrate 1, and the first sub-portion 41 of the first electrode 4 overlaps the inner wall surface of at least one of the first isolation portion 21 and the third isolation portion 23.

[0067] In this embodiment, the isolation structure 2 includes three parts: a first isolation portion 21, a second isolation portion 22 and a third isolation portion 23. The orthographic projection of the first isolation portion 21 on the substrate 1 is located within the orthographic projection of the third isolation portion 23 on the substrate 1, which means that the orthographic projection area of ​​the first isolation portion 21 on the substrate 1 is less than or equal to the orthographic projection area of ​​the third isolation portion 23 on the substrate 1. For example, along the direction perpendicular to the plane of the substrate 1, the cross-sections of the first isolation portion 21, the second isolation portion 22 and the third isolation portion 23 can form a shape similar to an "I" shape, so as to utilize the isolation structure 2 to realize a patterned light-emitting functional layer 3. Specifically, when evaporating the light-emitting material, the light-emitting material can be broken near the isolation structure 2 to form independent light-emitting units, thereby omitting the precision mask evaporation process and simplifying the preparation process of the display panel 10.

[0068] It should be noted that the first sub-portion 41 of the first electrode 4 overlaps the inner wall surface of at least one of the first isolating portion 21 and the third isolating portion 23, which means that the first sub-portion 41 of the first electrode 4 can overlap only the first isolating portion 21 or the third isolating portion 23, or can overlap both the first isolating portion 21 and the third isolating portion 23. Specifically, since the light-emitting functional layer 3 located under the first electrode 4 is also formed by an evaporation process, when the light-emitting functional layer 3 is only in contact with the third isolating portion 23 and a portion of the third isolating portion 23 is exposed, the first sub-portion 41 of the first electrode 4 located thereon can be in contact with the exposed third isolating portion 23 and can extend to the first isolating portion 21. Alternatively, when the light-emitting functional layer 3 is in contact with the third isolating portion 23 and the third isolating portion 23 is not exposed, the first sub-portion 41 of the first electrode 4 located thereon is in contact only with the first isolating portion 21.

[0069] Optionally, the first isolation portion 21 , the second isolation portion 22 and the third isolation portion 23 all include conductive materials. For example, the first isolation portion 21 includes aluminum material, the second isolation portion 22 includes titanium material, and the third isolation portion 23 includes molybdenum material.

[0070] Please refer to Figure 6. In some optional embodiments, the first sub-portion 41 of the first electrode 4 overlaps the first isolation portion 21 and the third isolation portion 23. At the connection between the first isolation portion 21 and the third isolation portion 23, the thickness H1 of the first sub-portion 41 of the first electrode 4 is greater than or equal to 30 angstroms.

[0071] It is understood that the thickness H1 of the portion of the first sub-portion 41 corresponding to the junction between the first isolating portion 21 and the third isolating portion 23 affects the overlap between the first sub-portion 41 and the first isolating portion 21. A greater thickness improves film uniformity, ensuring a certain thickness for the first electrode 4 to prevent uneven film formation and breakage. For example, the thickness H1 of the portion of the first sub-portion 41 corresponding to the junction between the first isolating portion 21 and the third isolating portion 23 can be any one of 30 angstroms, 31 angstroms, 32 angstroms, 33 angstroms, 34 angstroms, and 35 angstroms, where angstroms are units of length.

[0072] Please refer to Figure 6. In some optional embodiments, the first sub-portion 41 of the first electrode 4 overlaps the first isolation portion 21 and the third isolation portion 23, and the distance N1 between the orthographic projection pattern of the light-emitting functional layer 3 on the substrate 1 and the orthographic projection edge of the first isolation portion 21 corresponding to the first side B1 on the substrate 1 is greater than or equal to 0.1 μm. The distance N1 may refer to the minimum distance between the orthographic projection pattern of the light-emitting functional layer 3 on the substrate 1 and the orthographic projection of the first isolation portion 21 corresponding to the first side B1 on the substrate 1.

[0073] It should be noted that, in this embodiment, the light-emitting functional layer 3 is in contact only with the third isolation portion 23, and a portion of the third isolation portion 23 is exposed, so that the orthographic projection pattern of the light-emitting functional layer 3 on the substrate 1 has a certain distance to the orthographic projection of the first isolation portion 21 corresponding to the first side B1 on the substrate 1, and this distance is greater than or equal to 0.1 μm, so that the first sub-portion 41 can be in contact with this partially exposed third isolation portion 23. The third isolation portion 23 is made of molybdenum metal material, and the contact resistance between the first sub-portion 41 and the third isolation portion 23 is smaller, and the overlapping effect is better.

[0074] Referring to FIG. 2 , in some optional embodiments, the angle between the extension direction of the first side B1 and the first direction x is greater than or equal to 0° and less than or equal to 10°, the orthographic projection of the first isolation opening K1 on the substrate 1 further includes a second side B2, and the angle between the extension direction of the second side B2 and the first direction x is greater than 10° and less than or equal to 90°. Alternatively, the angle between the extension direction of the first side B1 and the second direction y is greater than or equal to 0° and less than or equal to 10°, and the orthographic projection edge of the first isolation opening K1 on the substrate 1 further includes a second side B2, and the angle between the extension direction of the second side B2 and the second direction y is greater than 10° and less than or equal to 90°.

[0075] In this embodiment, the second side B2 and the first side B1 may together form an edge of the orthographic projection pattern of the first isolation opening K1 on the substrate 1 .

[0076] In some optional embodiments, the length of the first side B1 accounts for 15% to 45% of the perimeter of the orthographic projection of the isolation opening K on the substrate 1. It is understandable that, since the provision of the first side B1 can improve the overlap effect of the first electrode 4, the greater the proportion of the length of the first side B1 in the perimeter of the orthographic projection of the isolation opening K on the substrate 1, the better the overlap improvement effect of the first electrode 4. The inventors have found through research and experiments that, for mobile phone products, the length of the first side B1 accounts for 15% to 45% of the perimeter of the orthographic projection of the isolation opening K on the substrate 1. Such a setting can ensure that the display panel has a large aperture ratio and good display effect, and improve the overlap effect of the cathode.

[0077] Optionally, the ratio of the length of the first side B1 to the perimeter of the orthographic projection of the isolation opening K on the substrate 1 may be any one of 15%, 20%, 25%, 30%, 35%, 40%, and 45%. For example, when the orthographic projection pattern of the isolation opening K on the substrate 1 includes two first sides B1 and two second sides B2, and the second side B2 is semicircular, the diameter of the second side B2 is 25 μm, and the side length of the first side B1 is 16.5 μm. Therefore, it can be calculated that the circumference of the orthographic projection pattern of the isolation opening K on the substrate 1 is approximately 123.54 μm, and the proportion is 16.5×2÷123.54=0.27, that is, 27%. This proportion can correspond to the light-emitting unit with a red luminous color. Similarly, the proportion corresponding to the light-emitting unit with a green luminous color is 25%, and the proportion corresponding to the light-emitting unit with a blue luminous color is 29%. Of course, since different display panels 10 correspond to isolation openings K of different sizes or shapes, the proportion of the side length of the first side B1 in the circumference of the orthographic projection pattern of the isolation opening K on the substrate 1 is not limited to the above range. For example, when applied to a high PPI display panel 10 , such as a VR product, the length of the first side B1 may account for 60% to 90% of the perimeter of the orthographic projection of the isolation opening K on the substrate 1 .

[0078] In some optional embodiments, the total contact area between the first electrode 4 and the inner wall surface of the isolation structure 2 accounts for 15% to 25% of the total area of ​​the inner wall surface corresponding to the overlapped portion of the first electrode 4. For example, when the first electrode 4 overlaps the first isolation portion 21 of the isolation structure 2, the total contact area between the first electrode 4 and the inner wall surface of the isolation structure 2 accounts for 15% to 25% of the total area of ​​the inner wall surface of the corresponding first isolation portion 21. The inner wall surface of the first isolation portion 21 is the surface of the first isolation portion 21 facing the isolation opening.

[0079] It can be understood that by limiting the angle between the extension direction of the first side B1 and the first direction x or the second direction y to be greater than or equal to 0° and less than or equal to 10°, the contact area between the first electrode 4 and the inner wall surface of the isolation structure 2 can be effectively increased. Therefore, the total contact area between the first electrode 4 and the inner wall surface of the isolation structure 2 of the display panel 10 provided in this embodiment accounts for a larger proportion of the total area of ​​the inner wall surface corresponding to the overlapping part of the first electrode 4, which can reach 15% to 25%, for example, any one of 15%, 20%, and 25%.

[0080] It should be noted that, when the first electrode 4 is only overlapped on the first isolation part 21 of the isolation structure 2, the total area of ​​the inner wall surface corresponding to the overlapping part of the first electrode 4, that is, the total area of ​​the inner wall surface of the first isolation part 21 facing the isolation opening K; exemplarily, the total contact area between the first electrode 4 and the inner wall surface of the first isolation part 21 accounts for 15% to 25% of the total area of ​​the inner wall surface of the first isolation part 21; exemplarily, when the first electrode 4 is overlapped on the first isolation part 21 and the third isolation part 23 of the isolation structure 2, the total area of ​​the inner wall surface corresponding to the overlapping part of the first electrode 4, that is, the sum of the total area of ​​the inner wall surface of the first isolation part 21 facing the isolation opening K and the area of ​​the third isolation part 23 not covered by the light-emitting functional layer 3.

[0081] In some optional embodiments, the extension direction of the first side B1 is parallel to the first direction x or the second direction y, that is, the angle between the extension direction of the first side B1 and the first direction x is equal to 0°, or the angle between the extension direction of the first side B1 and the second direction y is equal to 0°, so as to further improve the overlapping effect of the evaporated material of the first electrode 4 in the isolation opening K, and reduce the probability of the light-emitting unit and the first electrode 4 falling off, while reducing the impedance between the first electrode 4 and the isolation structure 2, thereby improving the performance of the display panel 10.

[0082] 7 and 8 , in some optional embodiments, the first electrode 4 further includes a second sub-portion 42 , which is the portion of the first electrode 4 that contacts the inner wall surface of the isolation structure 2 corresponding to the second side B2 .

[0083] Since the angle between the extension direction of the second side B2 and the first direction x or the second direction y is not in the range of 0° to 10°, the overlapping effect between the first sub-section 41 and the inner wall surface of the isolation structure 2 is better than the overlapping effect between the second sub-section 42 and the inner wall surface of the isolation structure 2.

[0084] Optionally, in a cross section along the thickness direction of the display panel 10, the length of the first sub-portion 41 of the first electrode 4 in contact with the inner wall surface of the isolation structure 2 is a first overlap length, and the length of the second sub-portion 42 of the first electrode 4 in contact with the inner wall surface of the isolation structure 2 is a second overlap length, and the first overlap length is greater than the second overlap length.

[0085] It should be noted that the cross-section along the thickness direction of the display panel 10 may include a first plane and a second plane respectively perpendicular to the thickness direction of the display panel 10, the first plane is perpendicular to the extension direction of the first side B1, and the second plane is perpendicular to the extension direction of the second side B2. The first overlap length is the length of the first sub-portion 41 of the first electrode 4 in contact with the inner wall surface of the isolation structure 2 on the first plane, and the second overlap length is the length of the second sub-portion 42 of the first electrode 4 in contact with the inner wall surface of the isolation structure 2 on the second plane.

[0086] When the first sub-portion 41 of the first electrode 4 contacts only the first isolating portion 21, the first overlap length is the length at point a shown in FIG3 . When the first sub-portion 41 of the first electrode 4 contacts both the first isolating portion 21 and the third isolating portion 23, the first overlap length is the sum of point a and point b shown in FIG6 .

[0087] The second overlap length is similar. For example, as shown in FIG8 , when the second sub-portion 42 of the first electrode 4 is only in contact with the first isolation portion 21 , the second overlap length is the length at point c shown in FIG8 .

[0088] The first overlap length is the length corresponding to the contact between the first sub-portion 41 of the first electrode 4 at the first side B1 and the inner wall surface of the isolation structure 2, and the second overlap length is the length corresponding to the contact between the second sub-portion 42 of the first electrode 4 at the second side B2 and the inner wall surface of the isolation structure 2. According to the research direction of the inventor, when the angle between the extension direction of the first side B1 and the first direction x is between 0° and 10°, and the angle between the extension direction of the second side B2 and the first direction x is not between 0° and 10°, or when the angle between the extension direction of the first side B1 and the second direction y is between 0° and 10°, and the angle between the extension direction of the second side B2 and the second direction y is not between 0° and 10°, the first overlap length is greater than the second overlap length, and the overlap effect between the first sub-portion 41 and the inner wall surface of the isolation structure 2 is better than the overlap effect between the second sub-portion 42 and the inner wall surface of the isolation structure 2.

[0089] Optionally, the contact area per unit length of the first sub-portion 41 of the first electrode 4 in contact with the inner wall surface of the isolation structure 2 is a first area, and the contact area per unit length of the second sub-portion 42 of the first electrode 4 in contact with the inner wall surface of the isolation structure 2 is a second area, and the first area is greater than the second area; wherein, the first area is the ratio of the total contact area of ​​the first sub-portion 41 of the first electrode 4 in contact with the inner wall surface of the isolation structure 2 to the length of the first side B1, and the second area is the ratio of the total contact area of ​​the second sub-portion 42 of the first electrode 4 in contact with the inner wall surface of the isolation structure 2 to the length of the second side B2 of the second overlap length.

[0090] It is understood that the contact area per unit length is the contact area at the same overlap length. For example, the unit overlap length can be 1 μm, which is specifically selected based on the size of the isolation structure 2. Considering that the lengths of the first side B1 and the second side B2 may be different, this embodiment accurately determines the overlap effect by comparing the contact area per unit length of the first sub-portion 41 of the first electrode 4 in contact with the inner wall surface of the isolation structure 2 and the contact area per unit length of the second sub-portion 42 of the first electrode 4 in contact with the inner wall surface of the isolation structure 2. The first area is greater than the second area, indicating that the first sub-portion 41 has a better overlap effect on the inner wall surface of the isolation structure 2 corresponding to the first side B1. Limiting the angle between the extension direction of the first side B1 and the first direction x or the second direction y to be greater than or equal to 0° and less than or equal to 10° can reduce the probability of the light-emitting unit and the first electrode 4 falling off, while also reducing the impedance between the first electrode 4 and the isolation structure 2, thereby improving the performance of the display panel 10.

[0091] Please refer to Figures 6 and 8. In some optional embodiments, the isolation structure 2 includes a first surface M1 close to the substrate 1. In a cross section along the thickness direction of the display panel 10, the first electrode 4 includes a first end Z1 and a second end Z2. The first end Z1 is the first sub-portion 41 of the first electrode 4 away from the edge of the substrate 1, and the second end Z2 is the second sub-portion 42 of the first electrode 4 away from the edge of the substrate 1. In the thickness direction of the display panel 10, the distance between the first end Z1 of the first electrode 4 and the extended surface of the first surface M1 is a first climbing height P1, and the distance between the second end Z2 of the first electrode 4 and the extended surface of the first surface M1 is a second climbing height P2. The first climbing height P1 is less than the second climbing height P2.

[0092] In this embodiment, the second end Z2 is the same as the first end Z1, and is the edge of the second sub-portion 42 of the first electrode 4 away from the substrate 1, that is, the second end Z2 is the highest point of the second sub-portion 42 at the corresponding second side B2. The inventors have found that when the angle between the extension direction of the first side B1 and the first direction x is greater than or equal to 0° and less than or equal to 10°, the first climbing height P1 of the corresponding first electrode 4 is smaller than the second climbing height P2.

[0093] Please refer to Figures 5 to 8. In some optional embodiments, in a cross-section along the thickness direction of the display panel 10, the light-emitting functional layer 3 includes a third end Z3 and a fourth end Z4, the third end Z3 is the edge of the portion where the light-emitting functional layer 3 contacts the inner wall surface of the isolation structure 2 corresponding to the first side B1, away from the substrate 1, and the fourth end Z4 is the edge of the portion where the light-emitting functional layer 3 contacts the inner wall surface of the isolation structure 2 corresponding to the second side B2, away from the substrate 1; along the thickness direction of the display panel 10, the distance between the third end Z3 and the extension surface of the first surface M1 is a third climbing height P3, the distance between the fourth end Z4 and the extension surface of the first surface M1 is a fourth climbing height P4, and the third climbing height P3 is less than the fourth climbing height P4.

[0094] Similar to the first electrode 4, the third end Z3 is the edge of the portion where the light-emitting functional layer 3 contacts the inner wall surface of the isolation structure 2 corresponding to the first side B1, which is away from the substrate 1, that is, the highest point where the light-emitting functional layer 3 corresponding to the first side B1 contacts the isolation structure 2. The fourth end Z4 is the edge of the portion where the light-emitting functional layer 3 contacts the inner wall surface of the isolation structure 2 corresponding to the second side B2, which is away from the substrate 1, that is, the highest point where the light-emitting functional layer 3 corresponding to the second side B2 contacts the isolation structure 2. Affected by the evaporation angle, the third climbing height P3 is smaller than the fourth climbing height P4.

[0095] Optionally, the difference between the first climbing height P1 and the third climbing height P3 is greater than the difference between the second climbing height P2 and the fourth climbing height P4, thereby increasing the contact area between the first sub-section 41 and the isolation structure 2 and improving the overlapping effect.

[0096] Please refer to Figures 9 and 10. In some optional embodiments, the light-emitting functional layer 3 includes light-emitting units, and the light-emitting units include a first light-emitting unit Q1, a second light-emitting unit Q2, and a third light-emitting unit Q3. The first light-emitting unit Q1 is used to emit light of a first color, the second light-emitting unit Q2 is used to emit light of a second color, and the third light-emitting unit Q3 is used to emit light of a third color; the isolation opening K also includes a second isolation opening K2 and a third isolation opening K3, at least a portion of the first light-emitting unit Q1 is located in the first isolation opening K1, at least a portion of the second light-emitting unit Q2 is located in the second isolation opening K2, and at least a portion of the third light-emitting unit Q3 is located in the third isolation opening K3.

[0097] In this embodiment, the orthographic projection shapes of the first isolation opening K1, the second isolation opening K2, and the third isolation opening K3 on the substrate 1 may be the same or different. Specifically, they may be selected based on the arrangement of the first light-emitting unit Q1, the second light-emitting unit Q2, and the third light-emitting unit Q3. Different shapes may be set according to actual needs, thereby increasing the application scenarios of the display panel 10.

[0098] Optionally, the orthographic projection area of ​​the first isolation opening K1 on the substrate 1 is smaller than the orthographic projection area of ​​the second isolation opening K2, and the orthographic projection area of ​​the first isolation opening K1 on the substrate 1 is smaller than the orthographic projection area of ​​the third isolation opening K3, that is, the orthographic projection figure of the first isolation opening K1 with the smallest area on the substrate 1 includes the first side B1, and the corresponding light-emitting area of ​​the first light-emitting unit Q1 that emits light of the first color is also the smallest. The inventors have found through research that the smaller the light-emitting area of ​​the light-emitting unit, the more sensitive it is to poor overlap. Therefore, the embodiment of the present invention at least makes the first isolation opening K1 corresponding to the first light-emitting unit Q1 with the smallest light-emitting area include the first side B1 at the orthographic projection edge of the substrate 1, so as to ensure the overlapping effect of the part of the first electrode 4 corresponding to the first light-emitting unit Q1, thereby improving the display effect.

[0099] Optionally, the orthographic projections of the first isolation opening K1, the second isolation opening K2 and the third isolation opening K3 on the substrate 1 all include edges parallel to the first edge of the first isolation opening K1, thereby ensuring the overlapping effect of the first light-emitting unit Q1, the second light-emitting unit Q2 and the third light-emitting unit Q3 and improving the display effect.

[0100] Optionally, the first color, the second color and the third color are green, red and blue respectively. Considering that the human eye is more sensitive to green, the isolation opening K corresponding to the light-emitting unit with a green light-emitting color can be set in the form of the first isolation opening K1 to ensure the overlapping effect of the part of the first electrode 4 corresponding to the first light-emitting unit Q1 with a green light-emitting color.

[0101] Please refer to Figure 10. In some optional embodiments, the display panel 10 further includes a plurality of light-emitting unit groups QZ, the light-emitting unit groups QZ are arranged along the first direction x, and the light-emitting unit groups QZ are arranged along the second direction y, each light-emitting unit group QZ includes two second light-emitting units Q2, one first light-emitting unit Q1 and two third light-emitting units Q3, the first light-emitting unit Q1 is located inside a first virtual quadrilateral, two opposite vertices in the first virtual quadrilateral coincide with the centers of the two second light-emitting units Q2, and the other two opposite vertices coincide with the centers of the two third light-emitting units Q3, and the first direction x and the second direction y intersect.

[0102] It should be noted that, as described above, the center of the light-emitting unit can be defined as the center point of the geometric shape of the light-emitting unit, that is, the geometric center, and the center of gravity of the light-emitting unit can be defined as the center point of the mass distribution of the geometric shape of the light-emitting unit, that is, the center of mass. If the geometric shape of the light-emitting unit is a regular geometric shape, then the geometric center of the light-emitting unit and its center of gravity coincide. For example, if the shape of the light-emitting unit is a parallelogram, the intersection of the two diagonals of the parallelogram is both its geometric center and its center of gravity. If the geometric shape of the light-emitting unit is an asymmetric irregular geometric shape, then its center of gravity can be determined using relevant technologies, but its geometric center is more difficult to determine. In this case, the relative positional relationship between the geometric center of the light-emitting unit and its center of gravity is more difficult to determine.

[0103] The light emitting unit may refer to a structural component in a display panel that performs light emitting display.

[0104] The first virtual quadrilateral can be a regular shape such as a trapezoid, rectangle, rhombus, or other irregular quadrilateral shape. The center of the orthographic projection of the first light-emitting unit Q1 on the substrate 1 can coincide with the centroid of the first virtual quadrilateral. The center of the orthographic projection of the first light-emitting unit Q1 on the substrate 1 can also be offset from the centroid of the first virtual quadrilateral by a certain distance.

[0105] It should be noted that regular figures in the present invention meet at least one of the following conditions: 1) centrally symmetrical figures; 2) axially symmetrical figures with two or more axes of symmetry. For example, ellipses, parallelograms (non-rectangular and non-rhombus), circles, rounded rectangles, regular polygons, rectangles, rhombuses, etc. are all regular figures. For centrally symmetrical figures, the central symmetry point is the center; for axially symmetrical figures with two or more axes of symmetry, the intersection of the two axes of symmetry is the center. Figures other than regular figures are considered irregular figures.

[0106] The shapes of the first light-emitting unit Q1, the second light-emitting unit Q2, and the third light-emitting unit Q3 are not limited to rectangles. The shapes of the first light-emitting unit Q1, the second light-emitting unit Q2, and the third light-emitting unit Q3 can also be other regular geometric shapes, such as circles, parallelograms, rhombuses, regular polygons, etc.; the shapes of the first light-emitting unit Q1, the second light-emitting unit Q2, and the third light-emitting unit Q3 can also be irregular shapes.

[0107] Please refer to Figures 11 and 12. In some optional embodiments, the display panel 10 includes a first display area AA1 and a second display area AA2 located at least on one side of the first display area AA1. The transmittance of the first display area AA1 is greater than the transmittance of the second display area AA2; the first isolation opening K1 is located at least in the first display area AA1.

[0108] It should be noted that the transmittance of the first display area AA1 is greater than the transmittance of the second display area AA2, so that the first display area AA1 can be used to set fingerprint sensors, face recognition elements, etc. that have high light requirements. Since the space of the first display area AA1 is limited, its display effect will also be affected to a certain extent. Therefore, in this embodiment, the first isolation opening K1 is at least located in the first display area AA1 to improve the overlapping effect of the evaporated material of the first electrode 4 in the isolation opening K in the first display area AA1, reduce the probability of the light-emitting unit and the first electrode 4 falling off, and at the same time reduce the impedance between the first electrode 4 and the isolation structure 2, thereby improving the display effect of the display panel 10 in the first display area AA1.

[0109] 12 , in some optional embodiments, in the first display area AA1 , the isolation structure 2 further includes a plurality of light-transmitting openings T, which are alternately arranged with the isolation openings K in the second direction y, and the first direction x and the second direction y intersect.

[0110] The isolation structure 2 is provided with multiple light-transmitting openings T to improve the transmittance of the display panel 10. This increased transmittance facilitates the implementation of an under-screen camera solution and enhances the imaging quality of the under-screen camera. Furthermore, the light-transmitting openings T can also be used to locate touchscreen or fingerprint sensor wiring, thereby reducing the overall thickness of the display panel 10.

[0111] Optionally, the light-transmitting openings T and the first isolation openings K1 are alternately arranged in the second direction y, and the first side B1 faces the adjacent light-transmitting openings T.

[0112] By arranging the light-transmitting openings T and the first isolation openings K1 alternately in the second direction y, the orthographic projection of the first isolation opening K1 on the substrate 1 includes a first side B1 parallel to the first direction x, so that there is no protruding sharp corner on the side of the first isolation opening K1 facing the light-transmitting opening T to avoid the light-transmitting opening T, thereby increasing the area and distribution density of the light-transmitting openings T on the display panel 10, further improving the transmittance of the display panel 10, and by setting the first side B1, the overlapping effect of the isolation structure and the cathode is ensured.

[0113] Optionally, the orthographic projection area of ​​the first isolation opening K1 in the first display area AA1 on the substrate 1 is smaller than the orthographic projection area of ​​the isolation opening K corresponding to the light-emitting unit of the same light-emitting color in the second display area AA2 on the substrate 1. Optionally, the orthographic projection shape of the first isolation opening K1 in the first display area AA1 on the substrate 1 is different from the shape of the first isolation opening K1 in the second display area AA2.

[0114] It can be understood that since a light-transmitting opening T is additionally provided in the first display area AA1, occupying a portion of the space of the first display area AA1, the area of ​​the first isolation opening K1 in the first display area AA1 can be reduced to avoid the light-transmitting opening T. In this embodiment, the orthographic projection of the first isolation opening K1 on the substrate 1 includes a first side B1 parallel to the first direction x, so as to reduce the length of the first isolation opening K1 in the second direction y, thereby leaving space for the provision of the light-transmitting opening T.

[0115] Optionally, in the second display area AA2 , common diamond-shaped or rectangular light-emitting units may be used, as shown in FIG13 .

[0116] Please refer to Figures 12 and 18. In some optional embodiments, the first isolation opening K1 in the first display area AA1 also includes two second sides B2 at the edge of the orthographic projection pattern of the substrate 1. The second side B2 in the first display area AA1 includes a first sub-side B21 and a second sub-side B22 that are interconnected. The first sub-side B21 and the second sub-side B22 are both straight line segments. The first sub-sides B21 of the two second sides B2 are parallel to each other, and the second sub-sides B22 of the two second sides B2 are parallel to each other.

[0117] In this embodiment, the second side B2 includes a first sub-side B21 and a second sub-side B22 connected to each other. The first sub-side B21 and the second sub-side B22 are both straight line segments, that is, the second side B2 is a broken line segment. The lengths of the first sub-side B21 and the second sub-side B22 can be equal to improve the symmetry of the first isolation opening K1.

[0118] The display panel 10 provided in the embodiment of the present application is configured such that the second side B2 includes a first sub-side B21 and a second sub-side B22 connected to each other, and the first sub-sides B21 of the two second sides B2 are parallel to each other, and the second sub-sides B22 of the two second sides B2 are parallel to each other, so that the positive projection pattern of the first isolation opening K1 on the substrate 1 is a hexagon with opposite sides parallel to each other. The mask used to prepare the first isolation opening K1 only needs to be simply improved on the basis of the existing mask, thereby saving the design cost of the mask. Moreover, the first isolation opening K1 with the above-mentioned structural shape can reduce the length of the first isolation opening K1 in the second direction y, leaving space for the setting of the light-transmitting opening T.

[0119] Please refer to Figure 14 or Figure 15. In some optional embodiments, the first isolation opening K1 includes two first sides B1 and two second sides B2 at the edge of the orthographic projection pattern of the substrate 1. The second side B2 includes a first sub-side B21 and a second sub-side B22 connected to each other. The first sub-side B21 and the second sub-side B22 are both straight line segments. The first sub-sides B21 in the two second sides B2 are parallel to each other, and the second sub-sides B22 in the two second sides B2 are parallel to each other. The second side B2 also includes two third sub-sides B23. The third sub-sides B23 are straight line segments. The first sub-sides B21 and the second sub-sides B22 are respectively connected to the two first sides B1 through different third sub-sides B23. The two third sub-sides B23 in the second side B2 are parallel to each other. The third sub-sides B23 in the two second sides B2 are parallel to each other. The first side B1 is protruded in a direction away from the first isolation opening K1.

[0120] The display panel 10 provided in the embodiment of the present application is formed by protruding the first side B1 in a direction away from the isolation opening K, which not only improves the overlapping effect of the vapor deposition material on the first side B1, but also increases the area of ​​the isolation opening K, thereby increasing the aperture ratio of the display panel 10.

[0121] The first isolation opening K1 provided in this embodiment can be applied to a display panel 10 that is not provided with a first display area AA1, that is, a display panel 10 in which each area has the same light transmittance. Alternatively, the first isolation opening K1 provided in this embodiment can also be applied to a display panel 10 that is provided with a first display area AA1 and a second display area AA2, and the isolation structure 2 of the molding structure protruding from the first side B1 in the direction away from the first isolation opening K1 in this embodiment is provided in the second display area AA2 to prevent the first side B1 of the protruding molding structure from affecting the setting of the light-transmitting opening T.

[0122] Referring to Figures 16 to 20 , optionally, the first side B1 includes a straight line segment, and the second side B2 includes at least one of a straight line segment, an arc segment, or a broken line segment. A broken line segment is formed by the connection of at least two straight line segments. When the second side B2 includes a broken line segment, the second side B2 may extend in multiple directions, namely the extension directions of each straight line segment in the broken line segment. When the second side B2 includes an arc segment, the second side B2 may extend in multiple directions, namely the extension directions of tangent segments at different points on the arc segment.

[0123] It should be noted that, when the extension direction of B2 includes multiple extension directions, the angle between the extension direction of B2 and the first direction x is greater than 10° and less than or equal to 90°, which means that the angle between the multiple extension directions of B2 and the first direction x is greater than 10° and less than or equal to 90°.

[0124] Please refer to Figure 21. In some optional embodiments, the display panel 10 also includes: a pixel definition layer 6, which is arranged on the side of the isolation structure 2 close to the substrate 1. A pixel opening 61 is provided on the pixel definition layer 6. The orthographic projection of the pixel opening 61 on the substrate 1 is located within the orthographic projection of the isolation opening K on the substrate 1. At least part of the light-emitting functional layer 3 is located in the pixel opening 61.

[0125] Optionally, the orthographic projection pattern of the pixel opening 61 on the substrate 1 includes a pixel opening edge (not shown), and the pixel opening edge is parallel to or perpendicular to the first direction x, that is, the pixel opening edge is parallel to or perpendicular to the first side B1.

[0126] Optionally, the orthographic projection pattern of the pixel opening 61 on the substrate 1 is consistent with the orthographic projection pattern of the isolation opening K on the substrate 1 .

[0127] Optionally, the edge of the pixel opening 61 coincides with the edge of the effective light-emitting area of ​​the light-emitting unit, that is, the edge of the pixel opening 61 coincides with the edge of the sub-pixel below.

[0128] Optionally, the centroid of the orthographic projection figure of the pixel opening 61 on the substrate 1 coincides with the centroid of the orthographic projection figure of the isolation opening K on the substrate 1, that is, the orthographic projection figure of the pixel opening 61 on the substrate 1 and the orthographic projection figure of the isolation opening K on the substrate 1 can be similar figures, and the shapes of the two can be the same, both of which are hexagonal shapes, but the side lengths are in a certain proportion to improve the light output rate.

[0129] Specifically, the orthographic projection pattern of the pixel opening 61 on the substrate 1 is the same shape as the orthographic projection pattern of the isolation opening K on the substrate 1, and the edge of the orthographic projection pattern of the pixel opening 61 on the substrate 1 is conformally arranged relative to the edge of the orthographic projection pattern of the isolation opening K on the substrate 1, that is, the edge of the orthographic projection pattern of the pixel opening 61 on the substrate 1 and the edge of the orthographic projection pattern of the relative isolation opening K on the substrate 1 are parallel, so as to ensure that the light emitted from the pixel opening 61 will not be blocked by the isolation structure 2, thereby improving the light extraction efficiency.

[0130] Referring to FIG. 21 , in some optional embodiments, the display panel 10 further includes: an encapsulation layer 7 located on a side of the first electrode 4 facing away from the substrate 1 , and at least a portion of the encapsulation layer 7 overlaps the isolation structure 2 .

[0131] Optionally, the encapsulation layer 7 includes a first encapsulation layer 71, which includes a plurality of first encapsulation units spaced apart from each other. The first encapsulation units are located on the side of the first electrode 4 facing away from the substrate 1. At least some of the first encapsulation units also cover the sidewall of the isolation structure 2 facing the isolation opening K and extend to the side of the isolation structure 2 facing away from the substrate 1. The first encapsulation units are used to encapsulate the isolation opening K, reducing oxidative corrosion of devices within the isolation opening K by external moisture, thereby increasing the lifespan of the display panel 10.

[0132] Optionally, the material of the first encapsulation layer 71 includes an inorganic material. That is, the first encapsulation layer 71 is an inorganic encapsulation layer, which can be prepared by chemical vapor deposition, which can improve the density of the first encapsulation layer 71 and thus improve the encapsulation effect of the encapsulation layer 7.

[0133] Optionally, the encapsulation layer 7 further includes a second encapsulation layer 72, which is located on a side of the first encapsulation layer 71 facing away from the substrate 1. The material of the second encapsulation layer 72 includes an organic material. That is, the second encapsulation layer 72 is an organic encapsulation layer, which can be prepared by inkjet printing to ensure that the encapsulation layer 7 has a suitable thickness.

[0134] Optionally, encapsulation layer 7 further includes a third encapsulation layer 73 located on a side of second encapsulation layer 72 facing away from substrate 1. The material of third encapsulation layer 73 includes an inorganic material. That is, third encapsulation layer 73 is an inorganic encapsulation layer. Adding an inorganic encapsulation layer outside the organic encapsulation layer can further enhance the encapsulation effect of encapsulation layer 7.

[0135] Optionally, the third encapsulation layer 73 is made of the same material as the first encapsulation layer 71 , so that the first encapsulation layer 71 and the third encapsulation layer 73 can be prepared using the same equipment, thereby simplifying the preparation process of the display panel 10 .

[0136] In some optional embodiments, the display panel 10 further includes: a second electrode 5 located on the side of the light-emitting functional layer 3 facing the substrate 1 ; the orthographic projection of the second electrode 5 on the substrate 1 at least partially overlaps with the orthographic projection of the isolation opening K on the substrate 1 .

[0137] The second electrode 5 is generally made of a material with a high work function to improve hole injection efficiency, and may be gold (Au), platinum (Pt), titanium (Ti), silver (Ag), indium tin oxide (ITO), zinc tin oxide (IZO), or a transparent conductive polymer (such as polyaniline). For example, the first electrode 4 layer may be made of an ITO-Ag-ITO composite material, without particular limitation.

[0138] Please refer to Figure 1 or Figure 5. Another embodiment of the present application provides a display panel, having a display area AA and a non-display area NA that at least partially surrounds the display area AA, the non-display area NA includes a binding area BA, the binding area BA is located on one side of the display area AA in the first direction x, the display panel includes: a substrate 1; an isolation structure 2, arranged on one side of the substrate 1, at least part of the isolation structure 2 encloses an isolation opening K, the orthographic projection of the isolation opening K on the substrate 1 includes a first side B1 and a second side B2 that enclose the isolation opening K, the first side B1 is perpendicular to or parallel to the first direction x; a light-emitting functional layer 3, at least partially located in the isolation opening K; a first electrode 4, located on the side of the light-emitting functional layer 3 away from the substrate 1, and overlapping with the isolation structure 4.

[0139] The display panel 10 provided in the embodiment of the present application includes a substrate 1, an isolation structure 2, a light-emitting unit and a first electrode 4. The orthographic projection pattern of the isolation opening K on the substrate 1 includes a first side B1 and a second side B2 that enclose the isolation opening K. The inventors have found that when the first side B1 is limited to be perpendicular or parallel to the first direction x, the overlapping effect of the evaporated material of the first electrode 4 in the isolation opening K can be improved, the probability of the light-emitting functional layer 3 and the first electrode 4 falling off can be reduced, and the impedance between the first electrode 4 and the isolation structure 2 can be reduced, thereby improving the performance of the display panel 10.

[0140] Referring to FIG. 3 or FIG. 5 , another embodiment of the present application provides a display panel 10, comprising: a substrate 1; an isolation structure 2, disposed on one side of the substrate 1, the isolation structure 2 having an isolation opening K, the isolation opening K including a first isolation opening K1, the first isolation opening K1 including a first side B1 and a second side B2 at the edge of the orthographic projection pattern of the substrate 1; a light-emitting functional layer 3, the light-emitting functional layer 3 being at least partially located within the isolation opening K; a first electrode 4, the first electrode 4 being located on a side of the light-emitting functional layer 3 facing away from the substrate 1, the first electrode 4 including a first sub-portion 41 and a second sub-portion 42, the first sub-portion 41 of the first electrode 4 being a first sub-portion 42; The portion of the first electrode 4 that contacts the inner wall surface of the isolation structure 2 corresponding to the first side B1, the second sub-portion 42 of the first electrode 4 that contacts the inner wall surface of the isolation structure 2 corresponding to the second side B2, and the inner wall surface of the isolation structure 2 is the surface of the isolation structure 2 facing the isolation opening K; wherein, in the cross-section along the thickness direction of the display panel 10, the length of the contact between the first sub-portion 41 of the first electrode 4 and the inner wall surface of the isolation structure 2 is the first overlap length, and the length of the contact between the second sub-portion 42 of the first electrode 4 and the inner wall surface of the isolation structure 2 is the second overlap length, and the first overlap length is greater than the second overlap length.

[0141] The display panel 10 provided in the embodiment of the present application includes a substrate 1, an isolation structure 2, a light-emitting unit and a first electrode 4. The first overlap length is the length corresponding to the contact between the first sub-portion 41 of the first electrode 4 at the first side B1 and the inner wall surface of the isolation structure 2, and the second overlap length is the length corresponding to the contact between the second sub-portion 42 of the first electrode 4 at the second side B2 and the inner wall surface of the isolation structure 2. The inventors have found that the angle between the extension direction of the first side B1 and the first direction x is between 0° and 10°, and the angle between the extension direction of the second side B2 and the first direction x is not within 0°. When the angle between the extension direction of the first side B1 and the second direction y is between 0° and 10°, or when the angle between the extension direction of the second side B2 and the second direction y is not between 0° and 10°, the first overlap length is greater than the second overlap length, so that the overlap effect between the first sub-portion 41 and the inner wall surface of the isolation structure 2 is better than the overlap effect between the second sub-portion 42 and the inner wall surface of the isolation structure 2, reducing the probability of the light-emitting unit and the first electrode 4 falling off, and at the same time reducing the impedance between the first electrode 4 and the isolation structure 2, thereby improving the performance of the display panel 10.

[0142] Please refer to Figure 3. In some optional embodiments, along the direction away from the substrate 1, the isolation structure 2 includes a first isolation portion 21 and a second isolation portion 22 that are stacked together, and the orthographic projection of the first isolation portion 21 on the substrate 1 is located within the orthographic projection of the second isolation portion 22 on the substrate 1.

[0143] In this embodiment, the isolation structure 2 may include a first isolation portion 21 and a second isolation portion 22. The orthographic projection of the first isolation portion 21 on the substrate 1 is located within the orthographic projection of the second isolation portion 22 on the substrate 1, that is, the orthographic projection area of ​​the first isolation portion 21 on the substrate 1 is less than or equal to the orthographic projection area of ​​the second isolation portion 22 on the substrate 1. For example, when the orthographic projection area of ​​the first isolation portion 21 on the substrate 1 is less than the orthographic projection area of ​​the second isolation portion 22 on the substrate 1, the cross-section of the first isolation portion 21 and the second isolation portion 22 along the direction perpendicular to the plane of the substrate 1 can be in a "T" shape, so as to utilize the isolation structure 2 to realize a patterned light-emitting functional layer 3 and a first electrode 4.

[0144] Please refer to Figures 5 to 6. In some optional embodiments, the isolation structure 2 also includes a third isolation portion 23 located on the side of the first isolation portion 21 away from the second isolation portion 22. The orthographic projection of the first isolation portion 21 on the substrate 1 is located within the orthographic projection of the third isolation portion 23 on the substrate 1. The first sub-portion 41 of the first electrode 4 overlaps the inner wall surface of at least one of the first isolation portion 21 and the third isolation portion 23.

[0145] In this embodiment, the isolation structure 2 includes three parts: a first isolation portion 21, a second isolation portion 22 and a third isolation portion 23. The orthographic projection of the first isolation portion 21 on the substrate 1 is located within the orthographic projection of the third isolation portion 23 on the substrate 1, which means that the orthographic projection area of ​​the first isolation portion 21 on the substrate 1 is less than or equal to the orthographic projection area of ​​the third isolation portion 23 on the substrate 1. For example, along the direction perpendicular to the plane of the substrate 1, the cross-sections of the first isolation portion 21, the second isolation portion 22 and the third isolation portion 23 can form a shape similar to an "I" shape, so as to utilize the isolation structure 2 to realize a patterned light-emitting functional layer 3. Specifically, when evaporating the light-emitting material, the light-emitting material can be broken near the isolation structure 2 to form independent light-emitting units, thereby omitting the precision mask evaporation process and simplifying the preparation process of the display panel 10.

[0146] Please refer to Figures 5 to 6. In some optional embodiments, in a cross-section along the thickness direction of the display panel 10, the first electrode 4 includes a first end Z1, which is an edge of the first sub-portion 41 of the first electrode 4 away from the substrate 1; the isolation structure 2 includes a first surface M1 close to the substrate 1, and along the thickness direction of the display panel 10, the distance between the first end Z1 of the first electrode 4 and the extension surface of the first surface M1 is a first climbing height P1, and the first climbing height P1 is greater than or equal to three quarters of the height N of the first isolation portion 21.

[0147] In this embodiment, the side wall of the first isolation portion 21 facing the isolation opening K corresponds to the inner wall surface of the isolation structure 2, that is, the first electrode 4 and the first isolation portion 21 are in contact, and the first end Z1 is the edge of the first sub-portion 41 of the first electrode 4 away from the substrate 1. The first end Z1 is the highest point of the first sub-portion 41 corresponding to the first side B1. Along the thickness direction of the display panel 10, the distance between the first end Z1 of the first electrode 4 and the extension surface of the first surface M1 is the first climbing height P1. The higher the first climbing height P1, the larger the contact area between the first sub-portion 41 and the first isolation portion 21, and the better the overlapping effect. Therefore, this embodiment limits the first climbing height P1 to be greater than or equal to three-quarters of the height N of the first isolation portion 21 to ensure that the first sub-portion 41 and the first isolation portion 21 have sufficient contact area, thereby improving the overlapping effect.

[0148] In some optional embodiments, the orthographic projection of the opening enclosed by the second isolation portion 22 on the substrate 1 coincides with the orthographic projection of the corresponding isolation opening K on the substrate 1. That is, the shape and size of the opening enclosed by the second isolation portion 22 determine the shape and size of the isolation opening K. The portion of the opening enclosed by the second isolation portion 22 corresponds to the first isolation opening K1, and the first side B1 corresponds to the orthographic projection of the portion of the side wall of the second isolation portion 22 in the direction of the enclosed opening on the substrate 1. That is, by adjusting the extension direction of the orthographic projection of the portion of the side wall of the second isolation portion 22 in the direction of the enclosed opening on the substrate 1, the angle between the extension direction of the first side B1 and the first direction x or the second direction y can be greater than or equal to 0° and less than or equal to 10°.

[0149] Referring to Figures 5 and 6, in some optional embodiments, the first sub-portion 41 of the first electrode 4 overlaps the first isolation portion 21 and the third isolation portion 23, and the thickness H1 of the portion of the first sub-portion 41 located at the connection between the first isolation portion 21 and the third isolation portion 23 is greater than or equal to 30 angstroms.

[0150] It is understood that the thickness H1 of the corresponding portion of the first sub-portion 41 at the junction of the first isolating portion 21 and the third isolating portion 23 affects the overlap height between the first sub-portion 41 and the first isolating portion 21. A greater thickness results in a greater overlap height, a greater contact area between the first sub-portion 41 and the first isolating portion 21, and a better overlap effect. For example, the thickness H1 of the corresponding portion of the first sub-portion 41 at the junction of the first isolating portion 21 and the third isolating portion 23 can be any one of 30 angstroms, 31 angstroms, 32 angstroms, 33 angstroms, 34 angstroms, and 35 angstroms, where angstroms are units of length.

[0151] Referring to Figures 5 to 6, in some optional embodiments, the first sub-portion 41 of the first electrode 4 overlaps the first isolation portion 21 and the third isolation portion 23, and the distance N1 between the edge of the orthographic projection pattern of the light-emitting functional layer 3 on the substrate 1 and the edge of the orthographic projection of the first isolation portion 21 on the substrate 1 corresponding to the first side B1 is greater than or equal to 0.1 μm.

[0152] It should be noted that, in this embodiment, the light-emitting functional layer 3 is in contact only with the third isolation portion 23, and a portion of the third isolation portion 23 is exposed, so that the orthographic projection pattern of the light-emitting functional layer 3 on the substrate 1 has a certain distance to the orthographic projection of the first isolation portion 21 corresponding to the first side B1 on the substrate 1, and this distance is greater than or equal to 0.1 μm, so that the first sub-portion 41 can be in contact with this partially exposed third isolation portion 23. The third isolation portion 23 is made of molybdenum metal material, and the conduction effect between the first sub-portion 41 and the third isolation portion 23 is better.

[0153] 1 and 4 , in some optional embodiments, the angle between the extension direction of the first side B1 and the first direction x is between 0° and 10°, and the angle between the extension direction of the second side B2 and the first direction x is not between 0° and 10°; or, the angle between the extension direction of the first side B1 and the second direction y is between 0° and 10°, and the angle between the extension direction of the second side B2 and the second direction y is not between 0° and 10°; wherein, the substrate 1 includes a scan line SCAN, and the second direction y is the extension direction of the scan line SCAN located in the display area AA; or, the substrate 1 includes a data line DATA, and the first direction x is the extension direction of the data line DATA located in the display area AA; or, the display panel 10 has a first sub-edge L1, and the first direction x is the extension direction of the first sub-edge L1; or, the display panel 10 further has a non-display area NA that at least partially surrounds the display area AA, and the non-display area NA includes a binding area BA, and the binding area BA is located on one side of the display area AA in the first direction x. Optionally, the first direction x and the second direction y are parallel to the surface of the substrate 1, and the first direction x is perpendicular to the second direction. Exemplarily, the graphic of the display panel 10 is a polygon, and the first sub-edge L1 of the display panel 10 is a side of the polygon. Exemplarily, the display panel 10 is rectangular, and the first sub-edge L1 is the long side of the rectangle. In another embodiment, the first direction x and the second direction are interchanged, the substrate 1 includes a scan line SCAN, and the first direction x is the extension direction of the scan line SCAN located in the display area AA, that is, the first direction x can be the left-right direction of the display panel 10, that is, the row direction, and the second direction y can be the up-down direction of the display panel 10, that is, the column direction.

[0154] Optionally, the substrate 1 includes a scan line SCAN, and the second direction y is the extension direction of the scan line SCAN located in the display area AA. Since the first direction x and the second direction y are perpendicular to each other, the angle between the extension direction of the first side B1 and the first direction x is greater than or equal to 0° and less than or equal to 10°. The first direction x can be the up and down direction of the display panel 10, that is, the column direction, and the second direction y can be the left and right direction of the display panel 10, that is, the row direction.

[0155] Optionally, the substrate 1 includes a data line DATA, the first direction x is the extension direction of the data line DATA located in the display area AA, the data line DATA usually extends along the up and down directions of the display panel 10, and the angle between the extension direction of the first side B1 and the first direction x is greater than or equal to 0° and less than or equal to 10°.

[0156] Optionally, the display panel 10 has a first sub-edge L1 , and the first direction x is an extending direction of the first sub-edge L1 .

[0157] Optionally, the display panel 10 further includes a non-display area NA that at least partially surrounds the display area AA. The non-display area NA includes a binding area BA. The binding area BA is located on one side of the display area AA in a first direction x. For example, the binding area BA is located at a lower border of the non-display area NA. The first direction x is the vertical direction of the display panel 10, i.e., the column direction. The angle between the extension direction of the first side B1 and the first direction x is greater than or equal to 0° and less than or equal to 10°. Alternatively, the angle between the extension direction of the second side B2 and the first direction x is greater than or equal to 0° and less than or equal to 10°.

[0158] In some optional embodiments, the contact area per unit length of the first sub-portion 41 of the first electrode 4 in contact with the inner wall surface of the isolation structure 2 is a first area, and the contact area per unit length of the second sub-portion 42 of the first electrode 4 in contact with the inner wall surface of the isolation structure 2 is a second area, and the first area is greater than the second area; wherein, the first area is the ratio of the total contact area of ​​the first sub-portion 41 of the first electrode 4 in contact with the inner wall surface of the isolation structure 2 to the length of the first side B1, and the second area is the ratio of the total contact area of ​​the second sub-portion 42 of the first electrode 4 in contact with the inner wall surface of the isolation structure 2 to the length of the second overlap length.

[0159] It is understood that the contact area per unit length is the contact area at the same overlap length. For example, the unit overlap length can be 1 μm, which is specifically selected based on the size of the isolation structure 2. Considering that the lengths of the first side B1 and the second side B2 may be different, this embodiment accurately determines the overlap effect by comparing the contact area per unit length of the first sub-portion 41 of the first electrode 4 in contact with the inner wall surface of the isolation structure 2 and the contact area per unit length of the second sub-portion 42 of the first electrode 4 in contact with the inner wall surface of the isolation structure 2. The first area is greater than the second area, indicating that the first sub-portion 41 has a better overlap effect on the inner wall surface of the isolation structure 2 corresponding to the first side B1. Limiting the angle between the extension direction of the first side B1 and the first direction x or the second direction y to be greater than or equal to 0° and less than or equal to 10° can reduce the probability of the light-emitting unit and the first electrode 4 falling off, while also reducing the impedance between the first electrode 4 and the isolation structure 2, thereby improving the performance of the display panel 10.

[0160] Please refer to Figures 5 to 8. In some optional embodiments, the isolation structure 2 includes a first surface M1 close to the substrate 1. In a cross section along the thickness direction of the display panel 10, the first electrode 4 includes a first end Z1 and a second end Z2. The first end Z1 is the first sub-portion 41 of the first electrode 4 away from the edge of the substrate 1, and the second end Z2 is the second sub-portion 42 of the first electrode 4 away from the edge of the substrate 1. In the thickness direction of the display panel 10, the distance between the first end Z1 of the first electrode 4 and the extension surface of the first surface M1 is a first climbing height P1, and the distance between the second end Z2 of the first electrode 4 and the extension surface of the first surface M1 is a second climbing height P2. The first climbing height P1 is less than the second climbing height P2.

[0161] In this embodiment, the second end Z2 is the same as the first end Z1, and is the edge of the second sub-portion 42 of the first electrode 4 away from the substrate 1, that is, the second end Z2 is the highest point of the second sub-portion 42 corresponding to the second side B2. According to the research direction of the inventor, when the first electrode is evaporated using an evaporation source, when the angle between the extension direction of the first side B1 and the first direction x is greater than or equal to 0° and less than or equal to 10°, the first climbing height P1 of the corresponding first electrode 4 is less than the second climbing height P2.

[0162] In some optional embodiments, in a cross-section along the thickness direction of the display panel 10, the light-emitting functional layer 3 includes a third end Z3 and a fourth end Z4, the third end Z3 being an edge of a portion where the light-emitting functional layer 3 contacts the inner wall surface of the isolation structure 2 corresponding to the first side B1, and away from the substrate 1, and the fourth end Z4 being an edge of a portion where the light-emitting functional layer 3 contacts the inner wall surface of the isolation structure 2 corresponding to the second side B2, and away from the substrate 1; along the thickness direction of the display panel 10, the distance between the third end Z3 and the extension surface of the first surface M1 is a third climbing height P3, the distance between the fourth end Z4 and the extension surface of the first surface M1 is a fourth climbing height P4, and the third climbing height P3 is less than the fourth climbing height P4.

[0163] Similar to the first electrode 4, the third end Z3 is the edge of the portion where the light-emitting functional layer 3 contacts the inner wall surface of the isolation structure 2 corresponding to the first side B1, which is away from the substrate 1, that is, the highest point where the light-emitting functional layer 3 corresponding to the first side B1 contacts the isolation structure 2. The fourth end Z4 is the edge of the portion where the light-emitting functional layer 3 contacts the inner wall surface of the isolation structure 2 corresponding to the second side B2, which is away from the substrate 1, that is, the highest point where the light-emitting functional layer 3 corresponding to the second side B2 contacts the isolation structure 2. Affected by the evaporation angle, the third climbing height P3 is smaller than the fourth climbing height P4.

[0164] Optionally, the difference between the first climbing height P1 and the third climbing height P3 is greater than the difference between the second climbing height P2 and the fourth climbing height P4, thereby increasing the contact area between the first sub-section 41 and the isolation structure 2 and improving the overlapping effect.

[0165] Please refer to Figures 22 to 26. Another embodiment of the present application provides a pixel arrangement structure, which includes sub-pixels arranged in an array along a first direction x and a second direction y, respectively. At least some of the sub-pixels E include a third side B3, and the angle between the extension direction B3 of the third side and the first direction x is greater than or equal to 0° and less than or equal to 10°, and the first direction x intersects with the second direction y.

[0166] The pixel arrangement structure provided in the embodiment of the present invention includes sub-pixels arranged in an array along a first direction x and a second direction y, respectively. The inventors have found through experimental research that the angle between the extension direction of the third side B3 and the first direction x is greater than or equal to 0° and less than or equal to 10°, which can effectively improve the luminous effect of the first sub-pixel E1.

[0167] Optionally, the pixel arrangement structure includes a plurality of first pixel groups EZ1; the first pixel groups EZ1 are arranged along a first direction x and a second direction y, respectively, and the first pixel groups EZ1 include: a first sub-pixel E1, the first sub-pixel E1 is located inside the virtual polygon, and the first sub-pixel E1 includes a third side B3; a second sub-pixel E2, the center of the second sub-pixel E2 coincides with a first vertex DD1 in the virtual polygon; and a third sub-pixel E3, the center of the third sub-pixel E3 coincides with a second vertex DD2 in the virtual polygon that is adjacent to the first vertex DD1.

[0168] The pixel arrangement structure provided in an embodiment of the present invention includes a plurality of first pixel groups EZ1 arranged along a first direction x and a second direction y, respectively. The first sub-pixel E1 includes a third side B3. Through research and experiments by the inventors, it was found that by limiting the angle between the extension direction of the third side B3 and the first direction x to be greater than or equal to 0° and less than or equal to 10°, the luminous effect of the first sub-pixel E1 can be effectively improved. At the same time, by arranging the first sub-pixel E1 inside a virtual polygon, the center of the second sub-pixel E2 coincides with the first vertex DD1 in the virtual polygon, and the center of the third sub-pixel E3 coincides with the second vertex DD2 adjacent to the first vertex DD1 in the virtual polygon, so that the second sub-pixel E2 and the third sub-pixel E3 can share the first sub-pixel E1, thereby increasing the PPI of the pixel arrangement structure and improving the display effect.

[0169] In this embodiment, the virtual polygon may be a triangle, a quadrilateral, a pentagon or a shape with more sides, without any special limitation.

[0170] The first sub-pixel E1 , the second sub-pixel E2 , and the third sub-pixel E3 may respectively refer to different effective light-emitting areas.

[0171] Referring to Figures 22 to 26, in some optional embodiments, the first sub-pixel E1 further includes a fourth side B4, and the angle between the extension direction of the fourth side B4 and the first direction x is greater than 10° and less than or equal to 90°; the third side B3 is a straight line segment, and the fourth side B4 is a straight line segment or a broken line segment.

[0172] It should be noted that a broken line segment refers to a segment formed by connecting at least two straight line segments. When the fourth side B4 includes a broken line segment, the extension direction of the fourth side B4 includes multiple directions, which are the extension directions of each straight line segment in the broken line segment. When the fourth side B4 includes an arc segment, the extension direction of the fourth side B4 includes the extension directions of the tangent segments at different points of the arc segment.

[0173] It should be noted that, in some embodiments, the angle between the extension direction of the third side B3 and the second direction y may be greater than or equal to 0° and less than or equal to 10°, and the angle between the extension direction of the fourth side B3 and the second direction y may be greater than or equal to 10° and less than or equal to 90°, which will not be repeated.

[0174] Optionally, the extension direction of the third side B3 is parallel to the first direction x, that is, the angle between the extension direction of the third side B3 and the first direction x is equal to 0°.

[0175] Optionally, the first subpixel E1 includes two third sides B3 and two fourth sides B4, the two third sides B3 are oppositely arranged, and the two fourth sides B4 are oppositely arranged, that is, the first subpixel E1 can be a quadrilateral, such as a rectangle, rhombus, parallelogram, etc.

[0176] Please refer to Figure 22 or Figure 25, Figure 26. Optionally, the fourth side B4 includes a fourth sub-side B41 and a fifth sub-side B42 that are connected to each other, and the fourth sub-side B41 and the fifth sub-side B42 are respectively connected to different third sides B3; the fourth sub-side B41 and the fifth sub-side B42 are both straight line segments, the fourth sub-sides B41 in the two fourth sides B4 are parallel to each other, and the fifth sub-sides B42 in the two fourth sides B4 are parallel to each other.

[0177] In this embodiment, the fourth side B4 includes a fourth sub-side B41 and a fifth sub-side B42 that are interconnected. Both the fourth sub-side B41 and the fifth sub-side B42 are straight line segments, i.e., the fourth side B4 is a broken line segment. The fourth sub-side B41 and the fifth sub-side B42 can be equal in length to improve the symmetry of the first sub-pixel E1. Furthermore, the mask used to manufacture the first sub-pixel E1 only requires simple modifications to existing masks, thereby reducing mask design costs.

[0178] Please refer to Figure 23 or Figure 24. In some optional embodiments, the first sub-pixel E1 includes two third sides B3 and two fourth sides B4. The fourth side B4 includes a fourth sub-side B41 and a fifth sub-side B42. The fourth sub-side B41 and the fifth sub-side B42 are connected. The fourth sub-side B41 and the fifth sub-side B42 are both straight line segments. The fourth sub-sides B41 in the two fourth sides B4 are parallel to each other, and the fifth sub-sides B42 in the two fourth sides B4 are parallel to each other. The fourth side B4 also includes two sixth sub-sides B43. The fourth sub-side B41 and the fifth sub-side B42 are respectively connected to the two third sides B3 through different sixth sub-sides B43. The third side B3 extends along the second direction y. Along the second direction y, the third side B3 protrudes in a direction away from the center of the first sub-pixel E1.

[0179] The display panel provided in the embodiment of the present application increases the area of ​​the first sub-pixel E1 by protruding the third side B3 away from the center of the first sub-pixel E1, thereby increasing the aperture ratio of the display panel.

[0180] Please refer to Figures 22, 23 and 5. In some optional embodiments, the first sub-pixel E1, the second sub-pixel E2 and the third sub-pixel E3 have different luminous colors. The first pixel group EZ1 includes one first sub-pixel E1, two second sub-pixels E2 and two third sub-pixels E3. The virtual polygon is a second virtual quadrilateral. The two opposite first vertices DD1 of the second virtual quadrilateral coincide with the centers of the two second sub-pixels E2, respectively, and the two opposite second vertices DD2 coincide with the centers of the two third sub-pixels E3, respectively. The two second sub-pixels E2 and the two third sub-pixels E3 are alternately arranged along the circumference of the second virtual quadrilateral.

[0181] The two second subpixels E2 and the two third subpixels E3 are alternately arranged along the circumference of the second virtual quadrilateral, that is, the second subpixel E2, the third subpixel E3, the second subpixel E2, and the third subpixel E3 are arranged in sequence along the circumference of the second virtual quadrilateral.

[0182] In this embodiment, the second virtual quadrilateral may be a regular shape such as a trapezoid, a rectangle, a rhombus, or other irregular quadrilateral shapes.

[0183] It should be noted that regular figures in the present invention meet at least one of the following conditions: 1) centrally symmetrical figures; 2) axially symmetrical figures with two or more axes of symmetry. For example, ellipses, parallelograms (non-rectangular and non-rhombus), circles, rounded rectangles, regular polygons, rectangles, rhombuses, etc. are all regular figures. For centrally symmetrical figures, the central symmetry point is the center; for axially symmetrical figures with two or more axes of symmetry, the intersection of the two axes of symmetry is the center. Figures other than regular figures are considered irregular figures.

[0184] The shapes of the first sub-pixel E1, the second sub-pixel E2, and the third sub-pixel E3 are not limited to rectangles. The shapes of the first sub-pixel E1, the second sub-pixel E2, and the third sub-pixel E3 can also be other regular geometric shapes, such as circles, parallelograms, rhombuses, regular polygons, etc.; the shapes of the first sub-pixel E1, the second sub-pixel E2, and the third sub-pixel E3 can also be irregular shapes.

[0185] As described above, the center of a sub-pixel can be defined as the center point of the sub-pixel's geometric shape, i.e., the geometric center, and the center of gravity of a sub-pixel can be defined as the center point of the mass distribution of the sub-pixel's geometric shape, i.e., the center of mass. If the sub-pixel's geometric shape is a regular geometric shape, then the sub-pixel's geometric center and its center of gravity coincide. For example, if the sub-pixel's shape is a parallelogram, the intersection of the two diagonals of the parallelogram is both its geometric center and its center of gravity. If the sub-pixel's geometric shape is an asymmetric irregular geometric shape, then its center of gravity can be determined using relevant techniques, but its geometric center is more difficult to determine. In this case, the relative positional relationship between the sub-pixel's geometric center and its center of gravity is more difficult to determine.

[0186] Optionally, the luminous colors corresponding to the first sub-pixel E1, the second sub-pixel E2, and the third sub-pixel E3 may be green, red, and blue, respectively. Of course, other color combinations may also be selected according to actual needs.

[0187] Please refer to Figure 23. In some optional embodiments, the luminous colors of the first sub-pixel E1, the second sub-pixel E2 and the third sub-pixel E3 are different; along the second direction y, the pixel arrangement structure includes adjacent first pixel columns and second pixel columns, and the first pixel columns and the second pixel columns are repeatedly arranged along the second direction y. The first pixel column includes the second sub-pixels E2 and the third sub-pixels E3 alternately arranged along the first direction x, and the second pixel column includes the first sub-pixels E1 spaced apart along the first direction x.

[0188] In this embodiment, the first pixel column includes second sub-pixels E2 and third sub-pixels E3 alternately arranged along the first direction x to improve the uniformity of the arrangement of the second sub-pixels E2 and the third sub-pixels E3, while the first sub-pixels E1 are arranged in a separate column, that is, the second pixel column includes first sub-pixels E1 arranged at intervals along the first direction x, so as to achieve the sharing of the first sub-pixel E1 by the second sub-pixels E2 and the third sub-pixels E3, thereby improving the pixel arrangement density.

[0189] Please refer to Figure 24 or Figure 26. In some optional embodiments, the first sub-pixel E1, the second sub-pixel E2 and the third sub-pixel E3 have different luminous colors; each first pixel group EZ1 includes one first sub-pixel E1, two second sub-pixels E2 and two third sub-pixels E3, and the first sub-pixel E1 is located inside a second virtual quadrilateral. Two adjacent vertices in the second virtual quadrilateral coincide with the centers of the two second sub-pixels E2, and the other two adjacent vertices coincide with the centers of the two third sub-pixels E3.

[0190] In this embodiment, two adjacent vertices refer to two adjacent vertices along the circumference of the second virtual quadrilateral, specifically a first vertex DD1 and a second vertex DD2. The two adjacent vertices in the second virtual quadrilateral coincide with the centers of the two second sub-pixels E2, and the other two adjacent vertices coincide with the centers of the two third sub-pixels E3, so as to improve the regularity of the pixel arrangement and facilitate preparation.

[0191] Please refer to Figure 25. In some optional embodiments, the luminous colors of the first sub-pixel E1, the second sub-pixel E2 and the third sub-pixel E3 are different; the pixel arrangement structure includes a plurality of second pixel groups EZ2, the second pixel groups EZ2 are arranged along the first direction x and the second direction y, respectively, the second pixel group EZ2 includes four first sub-pixels E1 and one second sub-pixel E2, or, the second pixel group EZ2 includes four first sub-pixels E1 and one third sub-pixel E3, the second sub-pixel E2 or the third sub-pixel E3 is located inside a third virtual quadrilateral, and the four vertices of the third virtual quadrilateral coincide with the centers of the four first sub-pixels E1 respectively.

[0192] In this embodiment, the pixel arrangement structure may include a first pixel group EZ1 and a second pixel group EZ2 at the same time, and four first sub-pixels E1 may be arranged around a second sub-pixel E2, or four first sub-pixels E1 may be arranged around a third sub-pixel E3, so as to improve the regularity of the pixel arrangement and facilitate preparation.

[0193] In this embodiment, the third virtual quadrilateral may be a regular shape such as a trapezoid, a rectangle, a rhombus, or other irregular quadrilateral shapes.

[0194] Please refer to Figures 22 to 26. In some optional embodiments, the light-emitting area of ​​the third sub-pixel E3 is larger than the light-emitting area of ​​the first sub-pixel E1, and the light-emitting area of ​​the second sub-pixel E2 is larger than the first sub-pixel E1; the first sub-pixel E1, the second sub-pixel E2 and the third sub-pixel E3 have the same shape but different colors; the first sub-pixels E1 are arranged in columns along the first direction x and in rows along the second direction y; the second sub-pixels E2 are arranged in columns along the first direction x and in rows along the second direction y; and the third sub-pixels E3 are arranged in columns along the first direction x and in rows along the second direction y.

[0195] It should be noted that the first sub-pixel E1, the second sub-pixel E2, and the third sub-pixel E3 have the same shape, but their luminous areas are different. Therefore, any two of the first sub-pixel E1, the second sub-pixel E2, and the third sub-pixel E3 can be similar figures to each other. Similar figures refer to two figures with equal corresponding angles and proportional corresponding sides. For example, the first sub-pixel E1, the second sub-pixel E2, and the third sub-pixel E3 can all be hexagons, and the corresponding angles of the hexagons are equal, but the lengths of the corresponding sides are unequal.

[0196] Since the first sub-pixel E1 includes a third side B3, and the angle between the extension direction of the third side B3 and the first direction x is greater than or equal to 0° and less than or equal to 10°, the second sub-pixel E2 and the third sub-pixel E3 each have at least one side whose extension direction has an angle greater than or equal to 0° and less than or equal to 10° with the first direction x, thereby further improving the luminous effects of the second sub-pixel E2 and the third sub-pixel E3.

[0197] In this embodiment, the first sub-pixels E1 are arranged in columns along the first direction x and in rows along the second direction y; the second sub-pixels E2 are arranged in columns along the first direction x and in rows along the second direction y; the third sub-pixels E3 are arranged in columns along the first direction x and in rows along the second direction y, that is, the first sub-pixels E1, the second sub-pixels E2 and the third sub-pixels E3 are arranged in an array along the first direction x and the second direction y, respectively, to improve the uniformity and regularity of the pixel arrangement and improve the luminous effect.

[0198] In some optional embodiments, the first sub-pixel E1 is polygonal, and the number of sides of the first sub-pixel E1 is greater than four. For example, the first sub-pixel E1 can be a pentagon, a hexagon, or the like, so as to form the corresponding third side B3. Similarly, the second sub-pixel E2 can also be polygonal, such as a pentagon, a hexagon, or the like, and the third sub-pixel E3 can also be polygonal, such as a pentagon, a hexagon, or the like. The first sub-pixel E1, the second sub-pixel E2, and the third sub-pixel E3 can adopt the same shape to improve the consistency and regularity of the luminous effect. For example, the first sub-pixel E1, the second sub-pixel E2, and the third sub-pixel E3 can all be hexagonal.

[0199] In some optional embodiments, in the first sub-pixel E1 , the length of the third side B3 in the first sub-pixel E1 accounts for 15% to 45% of the perimeter of the first sub-pixel E1 .

[0200] Optionally, the length of the third side B3 in the first subpixel E1 may account for any one of 15%, 20%, 25%, 30%, 35%, 40%, and 45% of the perimeter of the first subpixel E1. Of course, since different display panels correspond to first subpixels E1 of different sizes or shapes, the length of the third side B3 in the first subpixel E1 relative to the perimeter of the first subpixel E1 is not limited to the above range. For example, when applied to a high PPI display panel, such as a VR product, the length of the third side B3 in the first subpixel E1 may account for 60% to 90% of the perimeter of the first subpixel E1.

[0201] In some optional embodiments, the second subpixel E2 and the third subpixel E3 both include a third side B3; along the second direction y, the third side B3 in the second subpixel E2 and the third side B3 in the adjacent third subpixel E3 are arranged opposite to each other.

[0202] In this embodiment, the second sub-pixel E2 and the third sub-pixel E3 both include a third side B3, and thus, the luminous effects of the second sub-pixel E2 and the third sub-pixel E3 can also be effectively improved. Moreover, along the second direction y, the third side B3 in the second sub-pixel E2 and the third side B3 in the adjacent third sub-pixel E3 are arranged relative to each other. It can be understood that, along the second direction y, the third side B3 in the second sub-pixel E2 and the third side B3 in the adjacent third sub-pixel E3 at least partially overlap, that is, the side lengths of the third side B3 in the second sub-pixel E2 and the third side B3 in the adjacent third sub-pixel E3 can be equal or unequal, which can improve the regularity of the arrangement of the second sub-pixel E2 and the third sub-pixel E3 and ensure uniform luminescence.

[0203] Optionally, along the second direction y, a line connecting the midpoints of the third side B3 in the second subpixel E2 and the third side B3 in the adjacent third subpixel E3 is parallel to the second direction y.

[0204] In some optional embodiments, along the first direction x, the top angles of at least some of the two adjacent sub-pixels E are arranged relative to each other. Along the first direction x, the top angles of the two adjacent sub-pixels E can be understood as the corners of the sub-pixels E that are protruded along the first direction x. For example, along the first direction x, the top angles of the two adjacent first sub-pixels E1 are arranged relative to each other to improve the regularity of the arrangement of the first sub-pixels E1 along the first direction x.

[0205] In some optional embodiments, along the second direction y, the distance between the third side B3 in the second sub-pixel E2 and the third side B3 in the adjacent third sub-pixel E3 is a first distance J1, and the distance between the third sides B3 relative to each other of two adjacent first sub-pixels E1 is a second distance J2, and the second distance J2 is greater than or equal to the first distance J1.

[0206] The first distance J1 may refer to the minimum distance between the third side B3 of the second subpixel E2 and the third side B3 of the adjacent third subpixel E3 along the second direction y, and the second distance J2 may refer to the minimum distance between the third sides B3 of two adjacent first subpixels E1.

[0207] It should be noted that, considering that the light-emitting areas of the second and third sub-pixels E2 and E3 are generally larger than the light-emitting area of ​​the first sub-pixel E1, the second distance J2 can be set to be greater than or equal to the first distance J1. This ensures that the distance between the third sides B3 of two adjacent first sub-pixels E1 facing each other is sufficiently large so as not to affect the arrangement of the second and third sub-pixels E2 and E3, thereby improving the uniformity of the arrangement. Of course, depending on actual design requirements, the second distance J2 can also be smaller than the first distance J1, and there is no special limitation.

[0208] In some optional embodiments, the first distance J1 is less than or equal to the width N2 of the first sub-pixel E1 along the second direction y to improve the compactness of the pixel arrangement and thereby improve the pixel arrangement density. When the first sub-pixel E1 includes two opposite third sides B3, the width N2 of the first sub-pixel E1 along the second direction y may refer to the distance between the two opposite third sides B3 of the first sub-pixel E1 along the second direction y.

[0209] In some optional embodiments, along the first direction x, the third sides B3 of at least some sub-pixels are on the same straight line. For example, along the first direction x, the third sides B3 of adjacent first sub-pixels E1 are on the same straight line. Alternatively, when the second sub-pixel E2 and the third sub-pixel E3 have the same shape and area, the third sides B3 of the second sub-pixel E2 and the third sub-pixel E3 may also be on the same straight line along the first direction x to improve the uniformity of pixel arrangement.

[0210] Yet another embodiment of the present application provides a display panel 10 , comprising the pixel arrangement structure in any of the above embodiments.

[0211] Please refer to Figures 1, 2 and 9. Optionally, the display panel 10 includes a substrate 1 and an isolation structure 2 arranged on one side of the substrate 1. The isolation structure 2 is provided with an isolation opening K. Each sub-pixel of the pixel arrangement structure is located within the isolation opening K. The edge of the orthographic projection pattern of the isolation opening K on the substrate 1 is conformally arranged relative to the edge of the sub-pixel, that is, the edge of the orthographic projection pattern of the isolation opening K on the substrate 1 is parallel to the edge of the corresponding sub-pixel, and the shape of the orthographic projection pattern of the isolation opening K on the substrate 1 is the same as the shape of the pattern of the corresponding sub-pixel, so as to ensure that the light output from the sub-pixel will not be blocked by the isolation structure 2, thereby improving the light output efficiency.

[0212] Yet another embodiment of the present application provides a display device, comprising the display panel 10 in any of the above embodiments.

[0213] Since the display device provided in the embodiment of the present application includes the display panel 10 of any of the above embodiments, the display device provided in the embodiment of the present application has the beneficial effects of the display panel 10 of any of the above embodiments, which will not be repeated here.

[0214] The display device in the embodiments of the present application includes but is not limited to mobile phones, personal digital assistants (PDAs), tablet computers, e-books, televisions, access control systems, smart landline phones, consoles, and other devices with display functions.

[0215] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and components may be substituted with equivalents without departing from the scope of the present application. In particular, the various technical features described in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A display panel having a display area, the display panel comprising: substrate; An isolation structure is disposed on one side of the substrate, the isolation structure is provided with an isolation opening, the isolation opening includes a first isolation opening, the first isolation opening includes a first side in the orthographic projection of the substrate, and the angle between the extension direction of the first side and the first direction is greater than or equal to 0° and less than or equal to 10°; a light-emitting functional layer, wherein at least a portion of the light-emitting functional layer is located in the isolation opening; A first electrode, the first electrode is located on a side of the light-emitting functional layer away from the substrate and overlaps the isolation structure; Wherein, the substrate includes a scan line, and the first direction is an extension direction of the scan line located in the display area; Or, the substrate includes data lines, and the first direction is an extension direction of the data lines located in the display area; Or, the display panel has a first sub-edge, and the first direction is an extending direction of the first sub-edge; Alternatively, the display panel further has a non-display area at least partially surrounding the display area, the non-display area includes a binding area, and the binding area is located at one side of the display area in the first direction.

2. The display panel according to claim 1, wherein: The first electrode includes a first sub-portion, which is a portion of the first electrode in contact with an inner wall surface of the isolation structure corresponding to the first edge, and the inner wall surface of the isolation structure is a surface of the isolation structure facing the isolation opening.

3. The display panel according to claim 2, wherein: Along a direction away from the substrate, the isolation structure includes a first isolation portion and a second isolation portion which are stacked, 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.

4. The display panel according to claim 3, wherein: In a cross section along the thickness direction of the display panel, the first electrode includes a first end portion, and the first end portion is an edge of a first sub-portion of the first electrode away from the substrate; The isolation structure includes a first surface close to the substrate, and along the thickness direction of the display panel, the distance between the first end of the first electrode and the extension surface of the first surface is a first climbing height, and the first climbing height is greater than or equal to three quarters of the height of the first isolation portion.

5. The display panel according to claim 3, wherein: The orthographic projection of the opening formed by the second isolation portion on the substrate coincides with the orthographic projection of the corresponding isolation opening on the substrate.

6. The display panel according to claim 3, wherein: The isolation structure also includes a third isolation portion located on the side of the first isolation portion away from the second isolation portion, the orthographic projection of the first isolation portion on the substrate is located within the orthographic projection of the third isolation portion on the substrate, and the first sub-portion of the first electrode overlaps the inner wall surface of at least one of the first isolation portion and the third isolation portion.

7. The display panel according to claim 6, wherein: The first sub-portion of the first electrode overlaps the first isolation portion and the third isolation portion, and at the connection between the first isolation portion and the third isolation portion, the thickness of the first sub-portion of the first electrode is greater than or equal to 30 angstroms.

8. The display panel according to claim 6, wherein: The first sub-portion of the first electrode overlaps the first isolating portion and the third isolating portion, and the distance between the orthographic projection pattern of the light-emitting functional layer on the substrate and the orthographic projection edge of the first isolating portion corresponding to the first side on the substrate is greater than or equal to 0.1 μm.

9. The display panel according to claim 1, wherein: The length of the first side accounts for 15% to 45% of the perimeter of the orthographic projection of the isolation opening on the substrate.

10. The display panel according to claim 2, wherein: The isolation structure includes a first isolation portion, and a total contact area between the first electrode and an inner wall surface of the first isolation portion accounts for 15% to 25% of a total area of ​​the inner wall surface of the first isolation portion.

11. The display panel according to claim 2, wherein: The first isolation opening further includes a second side in the orthographic projection pattern of the substrate, and an angle between an extension direction of the second side and the first direction is greater than 10° and less than or equal to 90°.

12. The display panel according to claim 1, wherein: An extending direction of the first side is parallel to the first direction.

13. The display panel according to claim 11, wherein: The first electrode further includes a second sub-portion, and the second sub-portion of the first electrode is a portion of the first electrode that contacts an inner wall surface of the isolation structure corresponding to the second side.

14. The display panel according to claim 13, wherein: In a cross section along the thickness direction of the display panel, a length by which a first sub-portion of the first electrode contacts an inner wall surface of the isolation structure is a first overlap length, a length by which a second sub-portion of the first electrode contacts an inner wall surface of the isolation structure is a second overlap length, and the first overlap length is greater than the second overlap length.

15. The display panel according to claim 13, wherein: The contact area per unit length between the first sub-portion of the first electrode and the inner wall surface of the isolation structure is a first area, and the contact area per unit length between the second sub-portion of the first electrode and the inner wall surface of the isolation structure is a second area, and the first area is greater than the second area; wherein the first area is the ratio of the total area between the first sub-portion of the first electrode and the inner wall surface of the isolation structure to the length of the first side, and the second area is the ratio of the total area between the second sub-portion of the first electrode and the inner wall surface of the isolation structure to the length of the second side.

16. The display panel according to claim 13, wherein: The isolation structure includes a first surface close to the substrate, and in a cross section along the thickness direction of the display panel, the first electrode includes a first end and a second end, the first end being a first sub-portion of the first electrode away from an edge of the substrate, and the second end being a second sub-portion of the first electrode away from an edge of the substrate; in the thickness direction of the display panel, the distance between the first end of the first electrode and an extended surface of the first surface is a first climbing height, and the distance between the second end of the first electrode and an extended surface of the first surface is a second climbing height, and the first climbing height is less than the second climbing height.

17. The display panel according to claim 16, wherein: In a cross section along the thickness direction of the display panel, the light-emitting functional layer includes a third end and a fourth end, the third end being an edge of a portion of the light-emitting functional layer in contact with an inner wall surface of the isolation structure corresponding to the first side and away from the substrate, and the fourth end being an edge of a portion of the light-emitting functional layer in contact with an inner wall surface of the isolation structure corresponding to the second side and away from the substrate; In the thickness direction of the display panel, the distance between the third end and the extension surface of the first surface is the third climbing height, the distance between the fourth end and the extension surface of the first surface is the fourth climbing height, and the third climbing height is smaller than the fourth climbing height; the difference between the first climbing height and the third climbing height is greater than the difference between the second climbing height and the fourth climbing height.

18. The display panel according to claim 1, wherein: The light-emitting functional layer includes light-emitting units, and the light-emitting units include a first light-emitting unit, a second light-emitting unit and a third light-emitting unit. The first light-emitting unit is used to emit light of a first color, the second light-emitting unit is used to emit light of a second color, and the third light-emitting unit is used to emit light of a third color; the isolation opening also includes a second isolation opening and a third isolation opening, at least a portion of the first light-emitting unit is located in the first isolation opening, at least a portion of the second light-emitting unit is located in the second isolation opening, and at least a portion of the third light-emitting unit is located in the third isolation opening.

19. The display panel according to claim 18, wherein: The orthographic projection area of ​​the first isolation opening on the substrate is smaller than the orthographic projection area of ​​the second isolation opening, and the orthographic projection area of ​​the first isolation opening on the substrate is smaller than the orthographic projection area of ​​the third isolation opening.

20. The display panel according to claim 19, wherein: The orthographic projection patterns of the second isolation opening and the third isolation opening on the substrate both include sides parallel to the first side of the first isolation opening.

21. The display panel according to claim 1, wherein: The display panel also includes a plurality of light-emitting unit groups, which are arranged along the first direction and the second direction, each of the light-emitting unit groups includes two second light-emitting units, one first light-emitting unit and two third light-emitting units, the first light-emitting unit is located inside a first virtual quadrilateral, two opposite vertices in the first virtual quadrilateral coincide with the centers of the two second light-emitting units, and the other two opposite vertices coincide with the centers of the two third light-emitting units, and the first direction intersects with the second direction.

22. The display panel according to claim 1, wherein: The display panel includes a first display area and a second display area at least located on one side of the first display area. The light transmittance of the first display area is greater than that of the second display area. The first isolation opening is at least located in the first display area.

23. The display panel according to claim 11, wherein: The first side includes a straight line segment, and the second side includes at least one of a straight line segment, an arc segment, or a broken line segment.

24. The display panel according to claim 22, wherein: In the first display area, the isolation structure is further provided with a plurality of light-transmitting openings, the plurality of light-transmitting openings and the isolation openings are alternately arranged at intervals in a second direction, and the first direction intersects with the second direction.

25. The display panel according to claim 22, wherein: The projection area of ​​the orthographic projection of the first isolation opening in the first display area on the substrate is smaller than the projection area of ​​the orthographic projection of the isolation opening in the second display area corresponding to the light emitting unit of the same light emitting color on the substrate.

26. The display panel according to claim 22, wherein: The first isolation opening in the first display area also includes two second sides in the orthographic projection pattern of the substrate, and the second side in the first display area includes a first sub-side and a second sub-side connected to each other, the first sub-side and the second sub-side are both straight line segments, the first sub-sides of the two second sides are parallel to each other, and the second sub-sides of the two second sides are parallel to each other.

27. The display panel according to claim 1, wherein: The first isolation opening includes two first sides and two second sides in the orthographic projection pattern of the substrate, the second side includes a first sub-side and a second sub-side connected to each other, the first sub-side and the second sub-side are both straight line segments, the first sub-sides of the two second sides are parallel to each other, and the second sub-sides of the two second sides are parallel to each other; the second side also includes two third sub-sides, the third sub-sides are straight line segments, the first sub-side and the second sub-side are connected to the two first sides respectively through different third sub-sides; the two third sub-sides of the second sides are parallel to each other; the third sub-sides of the two second sides are parallel to each other; the first side is protruded in a direction away from the isolation opening.

28. The display panel according to claim 1, further comprising: A pixel definition layer is arranged on a side of the isolation structure close to the substrate. A pixel opening is arranged on the pixel definition layer. The orthographic projection of the pixel opening on the substrate is located within the orthographic projection of the isolation opening on the substrate. At least part of the light-emitting functional layer is located in the pixel opening.

29. The display panel according to claim 28, wherein: The centroid of the orthographic projection figure of the pixel opening on the substrate coincides with the centroid of the orthographic projection figure of the isolation opening on the substrate.

30. The display panel according to claim 28, wherein: The orthographic projection pattern of the pixel opening on the substrate is the same shape as the orthographic projection pattern of the isolation opening on the substrate, and the edge of the orthographic projection pattern of the pixel opening on the substrate is conformally arranged relative to the edge of the orthographic projection pattern of the isolation opening on the substrate.

31. The display panel according to claim 1, further comprising: An encapsulation layer, located on a side of the first electrode away from the substrate, at least a portion of the encapsulation layer overlaps the isolation structure; The encapsulation layer comprises a first encapsulation layer, the first encapsulation layer comprises a plurality of first encapsulation units spaced apart from each other, the first encapsulation unit is located on a side of the first electrode away from the substrate, at least part of the first encapsulation unit also covers a side wall of the isolation structure facing the isolation opening and extends to a side of the isolation structure away from the substrate; the material of the first encapsulation layer comprises an inorganic material; the encapsulation layer further comprises a second encapsulation layer, the second encapsulation layer is located on a side of the first encapsulation layer away from the substrate, and the second encapsulation layer The material includes an organic material; the encapsulation layer also includes a third encapsulation layer located on the side of the second encapsulation layer facing away from the substrate, and the material of the third encapsulation layer includes an inorganic material; the display panel also includes a second electrode, located on the side of the light-emitting functional layer facing the substrate; the orthographic projection of the second electrode on the substrate at least partially overlaps with the orthographic projection of the isolation opening on the substrate.

32. A display panel comprising a display area and a non-display area at least partially surrounding the display area, the non-display area comprising a binding area, the binding area being located on one side of the display area in a first direction, the display panel comprising: substrate; An isolation structure is disposed on one side of the substrate, at least a portion of the isolation structure encloses an isolation opening, the orthographic projection of the isolation opening on the substrate includes a first side and a second side enclosed to form the isolation opening, and the first side is perpendicular or parallel to the first direction; The light-emitting functional layer is at least partially located in the isolation opening; The first electrode is located on a side of the light-emitting functional layer away from the substrate and overlaps the isolation structure.

33. A display panel, wherein: include: substrate; An isolation structure is arranged on one side of the substrate, the isolation structure is provided with an isolation opening, the isolation opening comprises a first isolation opening, and the first isolation opening comprises a first side and a second side in an orthographic projection pattern of the substrate; a light-emitting functional layer, wherein at least a portion of the light-emitting functional layer is located in the isolation opening; a first electrode, the first electrode being located at a side of the light-emitting functional layer away from the substrate, the first electrode comprising a first sub-portion and a second sub-portion, the first sub-portion of the first electrode being a portion of the first electrode in contact with an inner wall surface of the isolation structure corresponding to the first side, the second sub-portion of the first electrode being a portion of the first electrode in contact with an inner wall surface of the isolation structure corresponding to the second side, the inner wall surface of the isolation structure being a surface of the isolation structure facing the isolation opening; Among them, in the cross-section along the thickness direction of the display panel, the length of the first sub-portion of the first electrode in contact with the inner wall surface of the isolation structure is a first overlap length, and the length of the second sub-portion of the first electrode in contact with the inner wall surface of the isolation structure is a second overlap length, and the first overlap length is greater than the second overlap length.

34. The display panel according to claim 33, wherein: Along a direction away from the substrate, the isolation structure includes a first isolation portion and a second isolation portion which are stacked, 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.

35. The display panel according to claim 34, wherein: The isolation structure also includes a third isolation portion located on the side of the first isolation portion away from the second isolation portion, the orthographic projection of the first isolation portion on the substrate is located within the orthographic projection of the third isolation portion on the substrate, and the first sub-portion of the first electrode overlaps the inner wall surface of at least one of the first isolation portion and the third isolation portion.

36. The display panel according to claim 34, wherein: In a cross section along the thickness direction of the display panel, the first electrode includes a first end portion, which is a first sub-portion of the first electrode away from the edge of the substrate; the isolation structure includes a first surface close to the substrate, and along the thickness direction of the display panel, the distance between the first end portion of the first electrode and the extended surface of the first surface is a first climbing height, and the first climbing height is greater than or equal to three quarters of the height of the first isolation portion.

37. The display panel according to claim 34, wherein: The orthographic projection of the opening formed by the second isolation portion on the substrate coincides with the orthographic projection of the corresponding isolation opening on the substrate.

38. The display panel according to claim 35, wherein: The first sub-portion of the first electrode overlaps the first isolation portion and the third isolation portion, and the thickness of a portion of the first sub-portion located at the connection between the first isolation portion and the third isolation portion is greater than or equal to 30 angstroms.

39. The display panel according to claim 35, wherein: The first sub-portion of the first electrode overlaps the first isolating portion and the third isolating portion, and the distance between the edge of the orthographic projection pattern of the light-emitting functional layer on the substrate and the edge of the orthographic projection of the first isolating portion corresponding to the first edge on the substrate is greater than or equal to 0.1 μm.

40. The display panel according to claim 33, wherein: The angle between the extension direction of the second edge and the first direction is greater than 10° and less than or equal to 90°; wherein the substrate includes a scan line, and the first direction is parallel to the extension direction of the scan line located in the display area; or, the substrate includes a data line, and the first direction is the extension direction of the data line located in the display area; or, the display panel has a first sub-edge, and the first direction is the extension direction of the first sub-edge; or, the display panel also has a non-display area that at least partially surrounds the display area, and the non-display area includes a binding area, and the binding area is located on one side of the display area in the first direction.

41. The display panel according to claim 33, wherein: The contact area per unit length between the first sub-portion of the first electrode and the inner wall surface of the isolation structure is a first area, and the contact area per unit length between the second sub-portion of the first electrode and the inner wall surface of the isolation structure is a second area, and the first area is greater than the second area; wherein the first area is the ratio of the total area between the first sub-portion of the first electrode and the inner wall surface of the isolation structure to the length of the first side, and the second area is the ratio of the total area between the second sub-portion of the first electrode and the inner wall surface of the isolation structure to the length of the second side.

42. The display panel according to claim 33, wherein: The isolation structure includes a first surface close to the substrate, and in a cross section along the thickness direction of the display panel, the first electrode includes a first end and a second end, the first end being a first sub-portion of the first electrode away from an edge of the substrate, and the second end being a second sub-portion of the first electrode away from an edge of the substrate; in the thickness direction of the display panel, the distance between the first end of the first electrode and an extended surface of the first surface is a first climbing height, and the distance between the second end of the first electrode and an extended surface of the first surface is a second climbing height, and the first climbing height is less than the second climbing height.

43. The display panel according to claim 42, wherein: In a cross section along the thickness direction of the display panel, the light-emitting functional layer includes a third end and a fourth end, the third end being an edge of a portion of the light-emitting functional layer in contact with an inner wall surface of the isolation structure corresponding to the first edge, which is away from the substrate, and the fourth end being an edge of a portion of the light-emitting functional layer in contact with an inner wall surface of the isolation structure corresponding to the second edge, which is away from the substrate; along the thickness direction of the display panel, the distance between the third end and the extension surface of the first surface is a third climbing height, the distance between the fourth end and the extension surface of the first surface is a fourth climbing height, and the third climbing height is smaller than the fourth climbing height; the difference between the first climbing height and the third climbing height is greater than the difference between the second climbing height and the fourth climbing height.

44. A pixel arrangement structure, comprising sub-pixels arranged in an array along a first direction and a second direction respectively, at least some of the sub-pixels comprising a third side, an angle between an extension direction of the third side and the first direction being greater than or equal to 0° and less than or equal to 10°, and the first direction intersecting with the second direction.

45. The pixel arrangement structure according to claim 44, wherein: The pixel arrangement structure includes a plurality of first pixel groups; the first pixel groups are arranged along the first direction and the second direction respectively, and the first pixel groups include: a first sub-pixel, the first sub-pixel is located inside a virtual polygon, and the first sub-pixel includes the third side; a second sub-pixel, the center of the second sub-pixel coincides with a first vertex in the virtual polygon; and a third sub-pixel, the center of the third sub-pixel coincides with a second vertex in the virtual polygon that is adjacent to the first vertex.

46. ​​The pixel arrangement structure according to claim 45, wherein: The first sub-pixel further includes a fourth side, and an angle between an extension direction of the fourth side and the first direction is greater than 10° and less than or equal to 90°; the third side is a straight line segment, and the fourth side is a straight line segment or a broken line segment.

47. The pixel arrangement structure according to claim 44, wherein: An extending direction of the third side is parallel to the first direction.

48. The pixel arrangement structure according to claim 46, wherein: The first sub-pixel includes two third sides and two fourth sides, the two third sides are arranged opposite to each other, and the two fourth sides are arranged opposite to each other.

49. The pixel arrangement structure according to claim 48, wherein: The fourth side includes a fourth sub-side and a fifth sub-side that are connected to each other, and the fourth sub-side and the fifth sub-side are respectively connected to different third sides; the fourth sub-side and the fifth sub-side are both straight line segments, the fourth sub-sides of two of the fourth sides are parallel to each other, and the fifth sub-sides of two of the fourth sides are parallel to each other.

50. The pixel arrangement structure according to claim 46, wherein: The first sub-pixel includes two third sides and two fourth sides, the fourth side includes a fourth sub-side and a fifth sub-side, the fourth sub-side and the fifth sub-side are connected, the fourth sub-side and the fifth sub-side are both straight line segments, the fourth sub-sides of the two fourth sides are parallel to each other, and the fifth sub-sides of the two fourth sides are parallel to each other; the fourth side also includes two sixth sub-sides, the fourth sub-side and the fifth sub-side are respectively connected to the two third sides through different sixth sub-sides, and the third side extends along the second direction; along the second direction, the third side is protruded in a direction away from the center of the first sub-pixel.

51. The pixel arrangement structure according to claim 45, wherein: The first sub-pixel, the second sub-pixel and the third sub-pixel have different luminous colors, the first pixel group includes one first sub-pixel, two second sub-pixels and two third sub-pixels, the virtual polygon is a second virtual quadrilateral, two opposite first vertices in the second virtual quadrilateral coincide with the centers of the two second sub-pixels respectively, two opposite second vertices coincide with the centers of the two third sub-pixels respectively, and the two second sub-pixels and the two third sub-pixels are alternately arranged along the circumference of the second virtual quadrilateral.

52. The pixel arrangement structure according to claim 45, wherein: The first sub-pixel, the second sub-pixel and the third sub-pixel have different luminous colors; along the second direction, the pixel arrangement structure includes adjacent first pixel columns and second pixel columns, the first pixel columns and the second pixel columns are alternately arranged along the second direction, the first pixel column includes second sub-pixels and third sub-pixels alternately arranged along the first direction, and the second pixel column includes first sub-pixels spaced apart along the first direction.

53. The pixel arrangement structure according to claim 45, wherein: The first sub-pixel, the second sub-pixel and the third sub-pixel have different luminous colors; the pixel arrangement structure includes a plurality of second pixel groups, the second pixel groups are arranged along the first direction and the second direction respectively, the second pixel group includes four first sub-pixels and one second sub-pixel, or the second pixel group includes four first sub-pixels and one third sub-pixel, the second sub-pixel or the third sub-pixel is located inside a third virtual quadrilateral, and the four vertices of the third virtual quadrilateral coincide with the centers of the four first sub-pixels respectively.

54. The pixel arrangement structure according to claim 45, wherein: The light-emitting area of ​​the third sub-pixel is larger than the light-emitting area of ​​the first sub-pixel, and the light-emitting area of ​​the second sub-pixel is larger than the light-emitting area of ​​the first sub-pixel; the first sub-pixel, the second sub-pixel and the third sub-pixel have the same shape but different colors; The first sub-pixels are arranged in columns along the first direction and in rows along the second direction; The second sub-pixels are arranged in columns along the first direction and in rows along the second direction; The third sub-pixels are arranged in columns along the first direction and in rows along the second direction.

55. The pixel arrangement structure according to claim 45, wherein: The first sub-pixel is polygonal, and the number of sides of the first sub-pixel is greater than four; and / or the second sub-pixel is polygonal, and the number of sides of the second sub-pixel is greater than four; and / or the third sub-pixel is polygonal, and the number of sides of the third sub-pixel is greater than four.

56. The pixel arrangement structure according to claim 45, wherein: In the first sub-pixel, the length of the third side of the first sub-pixel accounts for 15% to 45% of the perimeter of the first sub-pixel.

57. The pixel arrangement structure according to claim 45, wherein: The second sub-pixel and the third sub-pixel both include the third side; along the second direction, the third side in the second sub-pixel and the third side in the adjacent third sub-pixel are arranged opposite to each other.

58. The pixel arrangement structure according to claim 45, wherein: Along the first direction, at least some of the vertex corners of two adjacent sub-pixels are arranged opposite to each other.

59. The pixel arrangement structure according to claim 45, wherein: Along the second direction, the distance between the third side in the second sub-pixel and the third side in the adjacent third sub-pixel is a first distance, the distance between the third sides of two adjacent first sub-pixels relative to each other is a second distance, and the second distance is greater than or equal to the first distance.

60. The pixel arrangement structure according to claim 59, wherein: The first distance is less than or equal to a width of the first sub-pixel along the second direction.

61. The pixel arrangement structure according to claim 45, wherein: Along the first direction, the third sides of at least some of the sub-pixels are on the same straight line.

62. A display panel comprising the pixel arrangement structure according to any one of claims 44 to 61.

63. The display panel according to claim 62, wherein: The display panel includes a substrate and an isolation structure arranged on one side of the substrate, the isolation structure is provided with an isolation opening, each sub-pixel of the pixel arrangement structure is located in the isolation opening, and the isolation opening is conformally arranged at an edge of the orthographic projection pattern of the substrate relative to an edge of the sub-pixel.

64. A display device comprising the display panel described in any one of claims 1-43 or the display panel described in any one of claims 62-63.

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