Display panel and preparation method thereof

Abstract

The invention discloses a display panel and a preparation method of the display panel, the display panel is provided with a first edge extending along a first direction, and the display panel comprises a substrate; the isolation structure is arranged on one side of the substrate, and a first opening is defined by the isolation structure; at least part of the light-emitting functional layer is arranged in the first opening; the first electrode is arranged on the side, away from the substrate, of the light-emitting functional layer and connected with the isolation structure; wherein the orthographic projection of the first opening on the substrate is provided with a first outer edge facing the light-emitting functional layer, the first outer edge comprises a first section, and the included angle between the extension line of the first section and the first direction is larger than or equal to 0 degree and smaller than or equal to 26 degrees. The overlapping height of the first electrode on the isolation structure is increased, the overlapping area of the first electrode and the isolation structure is further increased, the overlapping effect of the first electrode and the isolation structure is improved, and the display effect of the display panel is further improved.

Description

Technical Field

[0001] The present application belongs to the technical field of electronic products, and in particular, relates to a display panel and a method for preparing the display panel. Background Art

[0002] With the advancement of technology, digital display devices such as smart phones and tablet computers have been widely used, among which display panels are indispensable interpersonal communication interfaces in these display devices. For example, organic light emitting diode (OLED) display panels have the advantages of self-luminescence, energy saving and consumption reduction, bendability, good flexibility, etc., and the display device that realizes display does not require a backlight source, has the characteristics of fast response speed and good display effect, and has attracted the attention of users and is widely used in terminal products such as smart phones and tablet computers.

[0003] However, the display effect of the display panel cannot meet the demand. Summary of the invention

[0004] The embodiments of the present application provide a display panel and a method for preparing the display panel, which increases the overlapping height of the first electrode on the isolation structure, thereby increasing the overlapping area of ​​the first electrode and the isolation structure, improving the overlapping effect of the first electrode and the isolation structure, and thereby improving the display effect of the display panel.

[0005] On the one hand, an embodiment of the present application provides a display panel, which has a first sub-edge extending along a first direction, and the display panel includes: a substrate; an isolation structure, which is arranged on one side of the substrate, and the isolation structure is enclosed to form a first opening; a light-emitting functional layer, at least a part of the light-emitting functional layer is arranged in the first opening; a first electrode, which is arranged on the side of the light-emitting functional layer away from the substrate, and the first electrode is connected to the isolation structure; wherein the orthographic projection of the first opening on the substrate has a first outer edge facing the light-emitting functional layer, the first outer edge includes a first segment, and the angle between the extension line of the first segment and the first direction is greater than or equal to 0° and less than or equal to 26°.

[0006] According to one aspect of the present application, the display panel includes a data line and a scan line, one of the data line and the scan line extends along the first direction, and the other extends along a second direction, and the first direction and the second direction intersect.

[0007] According to one aspect of the present application, the first outer edge is in the shape of a polygon and includes a plurality of sides of different lengths, and the first segment is the longest side among the plurality of sides of different lengths.

[0008] According to one aspect of the present application, it also includes a pixel definition layer arranged between the substrate and the isolation structure, the pixel definition layer includes a limiting structure and a second opening defined by the limiting structure, the orthographic projection of the second opening on the substrate is located within the orthographic projection range of the first opening on the substrate; the orthographic projection of the second opening on the substrate has a second outer edge, and the first outer edge and the adjacent second outer edge are not parallel; preferably, the shape of the second outer edge is a polygon, and the angle between the extension line of the side of the polygon and the first direction is greater than 26°; preferably, the second outer edge includes a second segment, and the angle between the extension line of the second segment and the first direction is 45°.

[0009] According to one aspect of the present application, the orthographic projection of the second opening on the substrate has at least one symmetry axis, and the orthographic projection of the first opening on the substrate is symmetrically arranged about the at least one symmetry axis.

[0010] According to one aspect of the present application, the isolation structure includes a first part and a second part which are arranged in sequence along a direction away from the substrate, and the orthographic projection of the first part on the substrate is located within the orthographic projection of the second part on the substrate; preferably, the edge of the second part extends a predetermined distance outward in the direction of the first opening relative to the edge of the first part; preferably, the first part includes a first side surface facing the first opening and overlapping the first electrode, and the second part includes a second side surface facing the first opening, and the orthographic projection edge of the first part on the substrate and the orthographic projection edge of the second part on the substrate are parallel; preferably, the orthographic projection edge of the first part on the substrate coincides with the first outer edge; or, the orthographic projection edge of the second part on the substrate coincides with the first outer edge; preferably, the first part includes a first cross section, the first cross section is perpendicular to the plane where the substrate is located, and the shape of the first cross section is a right trapezoid.

[0011] According to one aspect of the present application, the orthographic projection figure of the first opening on the substrate and the orthographic projection figure of the second opening on the substrate have the same shape; preferably, the orthographic projection figure of the first opening on the substrate and the orthographic projection figure of the second opening on the substrate are both rectangular; preferably, the first outer edge includes a relative first edge and a second edge and a relative third edge and a fourth edge, and the second outer edge includes a relative fifth edge and a sixth edge and a relative seventh edge and an eighth edge; the first section is any one of the first edge, the second edge, the third edge and the fourth edge, the first edge and the fifth edge and the seventh edge are not parallel, and the third edge and the fifth edge and the seventh edge are not parallel; preferably, the angles between the extension lines of the first edge and the extension lines of the fifth edge and the extension lines of the seventh edge are all equal to 45°.

[0012] On the other hand, an embodiment of the present invention further provides a display panel, comprising: a substrate; data lines and scan lines, which are arranged on one side of the substrate; an isolation structure, which is arranged on one side of the substrate, and the isolation structure encloses a first opening; a light-emitting functional layer, at least a portion of the light-emitting functional layer is arranged in the first opening; a first electrode, which is arranged on the side of the light-emitting functional layer away from the substrate, and the first electrode is in contact with the isolation structure; wherein the orthographic projection of the first opening on the substrate has a first outer edge facing the light-emitting functional layer, the first outer edge includes a first segment, and the angle between the extension line of the first segment and the first direction is greater than or equal to 0° and less than or equal to 26°, wherein the first direction is the extension direction of any one of the data line and the scan line.

[0013] According to another aspect of the present application, the first direction is an extension direction of the data line.

[0014] According to another aspect of the present application, it also includes a pixel definition layer arranged between the substrate and the isolation structure, the pixel definition layer includes a limiting structure and a second opening defined by the limiting structure, the orthographic projection of the second opening on the substrate is located within the orthographic projection range of the first opening on the substrate; the orthographic projection of the second opening on the substrate has a second outer edge, and the first outer edge and the adjacent second outer edge are not parallel; preferably, the shape of the second outer edge is a polygon, and the angle between the extension line of the side of the polygon and the first direction is greater than 26°; preferably, the second outer edge includes a second segment, and the angle between the extension line of the second segment and the first direction is 45°.

[0015] Another aspect of an embodiment of the present invention further provides a display panel, comprising: a substrate; an isolation structure, arranged on one side of the substrate, the isolation structure enclosing a first opening; a pixel definition layer, arranged on one side of the substrate, the pixel definition layer comprising a limiting structure and a plurality of second openings defined by the limiting structure; a light-emitting functional layer, at least a portion of the light-emitting functional layer being arranged in the second opening; wherein the orthographic projection of the first opening on the substrate has a first outer edge facing the second opening, the orthographic projection of the second opening on the substrate has a second outer edge, and the first outer edge and the adjacent second outer edge are not parallel.

[0016] According to another aspect of the present application, the display panel further includes a first electrode, the first electrode is located on a side of the light-emitting functional layer away from the substrate, and the first electrode is connected to the isolation structure;

[0017] According to another aspect of the present application, the orthographic projection figure of the first opening on the substrate and the orthographic projection figure of the second opening on the substrate have the same shape; preferably, the orthographic projection figure of the first opening on the substrate and the orthographic projection figure of the second opening on the substrate are both rectangular; preferably, the first outer edge includes a relative first edge and a second edge and a relative third edge and a fourth edge, and the second outer edge includes a relative fifth edge and a sixth edge and a relative seventh edge and an eighth edge; the first edge and the fifth edge and the seventh edge are not parallel, and the third edge and the fifth edge and the seventh edge are not parallel; preferably, the angles between the extension lines of the first edge and the extension lines of the fifth edge and the extension lines of the seventh edge are all equal to 45°.

[0018] Another aspect of an embodiment of the present invention further provides a method for preparing a display panel, comprising the following steps: providing a substrate; forming an isolation structure on one side of the substrate, the isolation structure enclosing a first opening; forming a light-emitting functional layer, at least a portion of the light-emitting functional layer being arranged in the first opening; forming a first electrode on the side of the light-emitting functional layer away from the substrate, the first electrode being connected to the isolation structure, the orthographic projection of the first opening on the substrate having a first outer edge facing the light-emitting functional layer, the first outer edge comprising a first segment, the angle between an extension line of the first segment and an arrangement direction of each nozzle portion on a line source evaporation component for evaporating the first electrode being greater than or equal to 0° and less than or equal to 26°.

[0019] According to another aspect of the present application, between the steps of providing a substrate and forming an isolation structure on one side of the substrate, it also includes: forming a pixel definition layer on one side of the substrate, the pixel definition layer including a limiting structure and a second opening defined by the limiting structure, the second opening having a second outer edge in its orthographic projection on the substrate; in the step of forming the isolation structure on one side of the substrate, the first outer edge and the adjacent second outer edge are not parallel.

[0020] According to another aspect of the present application, in the step of forming a first electrode on the side of the light-emitting functional layer away from the substrate: the arrangement direction of the nozzle parts on the line source evaporation component is not parallel to the extension line of the second segment of the second outer edge; preferably, the shape of the second outer edge is a polygon, and the angles between the extension lines of the sides of the polygon and the arrangement direction of the nozzle parts on the line source evaporation component are greater than 26°; preferably, the angle between the extension line of the second segment and the arrangement direction of the nozzle parts on the line source evaporation component is 45°; preferably, the arrangement direction of the nozzle parts on the line source evaporation component is perpendicular to the moving direction of the line source evaporation component.

[0021] The display panel provided in an embodiment of the present invention includes a substrate, an isolation structure, a light-emitting functional layer and a first electrode. The isolation structure encloses a first opening to limit the setting range of the light-emitting functional layer. The orthographic projection of the first opening on the substrate has a first outer edge facing the light-emitting functional layer, and the display panel has a first sub-edge extending along a first direction, that is, the first sub-edge is a straight edge of the display panel. The inventors have found through research that the angle between the extension line of the first segment and the first direction is greater than or equal to 0° and less than or equal to 26°. When preparing the first electrode, the overlapping height of the first electrode on the isolation structure can be effectively increased, thereby increasing the overlapping area of ​​the first electrode and the isolation structure, improving the overlapping effect of the first electrode and the isolation structure, and thereby improving the display effect of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 is a structural schematic diagram of a display panel provided by an embodiment of the present invention;

[0024] Figure 2 An embodiment of the present invention provides Figure 1 Schematic diagram of the enlarged structure of the middle region Q;

[0025] Figure 3 yes Figure 2 Schematic diagram of the cross-sectional structure at AA in the middle;

[0026] Figure 4 Another embodiment of the present invention provides Figure 1 Schematic diagram of the enlarged structure of the middle region Q;

[0027] Figure 5 is a schematic structural diagram of a line source evaporation component provided by an embodiment of the present invention;

[0028] Figure 6 is a schematic diagram of the relative positions of the line source evaporation element and the first opening in the prior art;

[0029] Figure 7 yes Figure 6 Schematic diagram of the cross-section structure at BB in the middle;

[0030] Figure 8 is a schematic diagram of the relative positions of the line source evaporation element and the first opening provided in an embodiment of the present invention;

[0031] Fig. 9 yes Figure 8 Schematic diagram of the cross-section structure at CC in the middle;

[0032] Fig.10 is a flow chart of a method for preparing a display panel provided by an embodiment of the present invention;

[0033] Fig.11 is a cross-sectional schematic diagram of a structure obtained in step S110 in a method for preparing a display panel provided by an embodiment of the present invention;

[0034] Fig.12 is a cross-sectional schematic diagram of a structure obtained in step S120 in a method for preparing a display panel provided by an embodiment of the present invention;

[0035] Fig.13 It is a schematic cross-sectional view of a structure obtained in step S130 in a method for preparing a display panel provided in an embodiment of the present invention.

[0036] In the attached figure:

[0037] 10. Substrate;

[0038] 20. pixel definition layer; 21. definition structure; 22. second opening;

[0039] 30. Isolation structure; 31. First part; 32. Second part;

[0040] 40. Light-emitting functional layer;

[0041] 50. a first electrode;

[0042] 60. a second electrode;

[0043] 7. Line source evaporation component; 71. Main body; 72. Nozzle;

[0044] 8. Data line; 9. Scan line;

[0045] C1, first side; C2, second side;

[0046] d1, first outer edge; d11, first edge; d12, second edge; d13, third edge; d14, fourth edge; d2, second outer edge; d15, fifth edge; d16, sixth edge; d17, seventh edge; d18, eighth edge;

[0047] t1, first paragraph; t2, second paragraph;

[0048] B1, first sub-edge;

[0049] K, first opening;

[0050] Y, first direction; X, second direction. DETAILED DESCRIPTION

[0051] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present application and are not configured to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating the examples of the present application.

[0052] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0053] It should be understood that when describing the structure of a component, when a layer or a region is referred to as being "on" or "over" another layer or another region, it may mean that it is directly on the other layer or another region, or that other layers or regions are included between it and the other layer or another region. Moreover, if the component is turned over, the layer or a region will be "below" or "beneath" another layer or another region.

[0054] It is obvious to those skilled in the art that various modifications and changes can be made in the present application without departing from the spirit or scope of the present application. Therefore, the present application is intended to cover modifications and changes of the present application that fall within the scope of the corresponding claims (technical solutions for protection) and their equivalents. It should be noted that the implementation methods provided in the embodiments of the present application can be combined with each other without contradiction.

[0055] The present application provides a display panel and a method for manufacturing the display panel. Figures 1 to 13 Various embodiments of the display panel are described.

[0056] See also Figures 1 to 3 A display panel provided in an embodiment of the present application has a first sub-edge B1 extending along a first direction Y, and the display panel includes: a substrate 10; an isolation structure 30, which is arranged on one side of the substrate 10, and the isolation structure 30 encloses a first opening K; a light-emitting functional layer 40, at least a portion of the light-emitting functional layer 40 is arranged in the first opening K; a first electrode 50, which is arranged on the side of the light-emitting functional layer 40 away from the substrate 10, and the first electrode 50 is connected to the isolation structure 30; wherein, the orthographic projection of the first opening K on the substrate 10 has a first outer edge d1 facing the light-emitting functional layer 40, the first outer edge d1 includes a first segment t1, and the angle between the extension line of the first segment t1 and the first direction Y is greater than or equal to 0° and less than or equal to 26°.

[0057] The display panel provided by the embodiment of the present invention includes a substrate 10, an isolation structure 30, a light-emitting functional layer 40 and a first electrode 50. The isolation structure 30 encloses a first opening K to limit the setting range of the light-emitting functional layer 40. The orthographic projection of the first opening K on the substrate 10 has a first outer edge d1 facing the light-emitting functional layer 40, and the display panel has a first sub-edge B1 extending along the first direction Y, that is, the first sub-edge B1 is a straight edge of the display panel. Since the arrangement direction of each nozzle part 72 on the line source evaporation member 7 used for evaporating the first electrode 50 is usually parallel to the first direction Y, the inventor has found through research that the angle between the extension line defining the first segment t1 and the first direction Y is greater than or equal to 0° and less than or equal to 26°. When preparing the first electrode 50, the overlapping height of the first electrode 50 on the isolation structure 30 can be effectively improved, thereby increasing the overlapping area between the first electrode 50 and the isolation structure 30, improving the overlapping effect of the first electrode 50 and the isolation structure 30, and thereby improving the display effect of the display panel.

[0058] It should be noted that, according to the research direction of the inventor, the angle between the extension line of the first segment t1 and the first direction Y will affect the relative position between the maximum evaporation path formed by the evaporation material sprayed by each nozzle part 72 on the line source evaporation member 7 for evaporating the first electrode 50 and the isolation structure 30, thereby affecting the overlap position of the formed first electrode 50 on the isolation structure 30. The embodiment of the present application limits the angle between the extension line of the first segment t1 and the first direction Y to be greater than or equal to 0° and less than or equal to 26°, so as to increase the overlap height of the first electrode 50 on the isolation structure 30, so that the overlap effect of the first electrode 50 and the isolation structure 30 meets the requirements, thereby improving the display effect of the display panel.

[0059] Specifically, the first direction Y is parallel to the arrangement direction of the nozzle portions 72 on the line source evaporation member 7 for evaporating the first electrode 50 .

[0060] Among them, the line source evaporation component 7 is usually in a long strip shape, and a plurality of nozzle parts 72 are arranged on the line source evaporation component 7, and each nozzle part 72 is arranged along a straight line. The extension direction of the straight line is the arrangement direction of the nozzle part 72. For example, it includes a main body part 71 and a nozzle part 72 arranged on the main body part 71 along the extension direction of the main body part 71. A plurality of nozzle parts 72 are arranged in sequence on the main body part 71, and the arrangement direction of each nozzle part 72 will affect the evaporation range. When the first direction Y is parallel to the arrangement direction of each nozzle part 72 on the line source evaporation component 7 for evaporating the first electrode 50, correspondingly, the angle between the extension line of the first segment t1 and the arrangement direction of each nozzle part 72 on the line source evaporation component 7 for evaporating the first electrode 50 is greater than or equal to 0° and less than or equal to 26°, thereby limiting the relative position between the maximum evaporation path formed by the evaporation material sprayed by each nozzle part 72 and the isolation structure 30, increasing the overlapping height of the formed first electrode 50 on the isolation structure 30, so that the overlapping effect of the first electrode 50 and the isolation structure 30 meets the requirements, thereby improving the display effect of the display panel.

[0061] Optional, such as Figure 4 and Figure 5 As shown, when the angle between the extension line of the first segment t1 and the arrangement direction of each nozzle part 72 on the line source evaporation component 7 for evaporating the first electrode 50 is equal to 0°, that is, the extension line of the first segment t1 and the arrangement direction of each nozzle part 72 on the line source evaporation component 7 for evaporating the first electrode 50 are parallel, the overlap height of the first electrode 50 on the isolation structure 30 is relatively high, thereby improving the display effect of the display panel.

[0062] Optionally, the first direction Y is perpendicular to the moving direction of the line source evaporation member 7 for evaporating the first electrode 50, that is, the arrangement direction of each nozzle portion 72 on the line source evaporation member 7 for evaporating the first electrode 50 is perpendicular to the moving direction of the line source evaporation member 7 for evaporating the first electrode 50. The inventor has found through research that the moving direction of the line source evaporation member 7 for evaporating the first electrode 50 will also affect the overlap height of the first electrode 50 on the isolation structure 30. When the arrangement direction of the nozzle portions 72 on the component 7 is perpendicular to the moving direction of the line source evaporation component 7 for evaporating the first electrode 50, and the angle between the extension line of the first segment t1 and the arrangement direction of the nozzle portions 72 on the line source evaporation component 7 for evaporating the first electrode 50 is greater than or equal to 0° and less than or equal to 26°, the overlapping height of the first electrode 50 on the isolation structure 30 meets the requirements, and a stable overlapping of the first electrode 50 and the isolation structure 30 can be achieved, thereby improving the display effect of the display panel.

[0063] Optionally, the display panel includes data lines 8 and scan lines 9, one of which extends along a first direction Y and the other extends along a second direction X, and the first direction Y intersects the second direction X. The data line 8 may extend along the first direction Y, or the scan line 9 may extend along the first direction Y, and there is no special limitation, and it can be set according to actual needs.

[0064] The display panel is usually rectangular, and the first sub-edge B1 may be a short side or a long side of the display panel, without any special limitation.

[0065] The orthographic projection of the first opening K on the substrate 10 has a first outer edge d1 facing the light-emitting functional layer 40, and the first segment t1 of the first outer edge d1 can be understood as the edge corresponding to the side of the isolation structure 30 for overlapping the first electrode 50. Since the angle between the extension line of the first segment t1 of the first outer edge d1 and the first direction Y needs to be greater than or equal to 0° and less than or equal to 26°, the first segment t1 is a straight line segment, and the corresponding orthographic projection of the first opening K on the substrate 10 needs to be a figure including at least one straight line side, such as a rectangle, a trapezoid, etc.

[0066] Optionally, a plurality of first openings K are distributed at intervals, and a light-emitting functional layer 40 is disposed in each first opening K.

[0067] Optionally, the display panel further includes a second electrode 60 , and the second electrode 60 is located on a side of the light-emitting functional layer 40 facing the substrate 10 .

[0068] Optionally, there are multiple first electrodes 50 , and each first electrode 50 is located on a side of each light-emitting functional layer 40 facing away from the substrate 10 .

[0069] The second electrode 60 and the first electrode 50 interact to drive the light-emitting functional layer 40 to emit light. One of the first electrode 50 and the second electrode 60 is an anode and the other is a cathode. The embodiment of the present application takes the second electrode 60 as an anode and the first electrode 50 as a cathode as an example.

[0070] Optionally, the display panel may include a substrate 10 and a circuit layer, and the circuit layer may include a driving circuit. For example, the circuit 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 10 and are stacked. An insulating layer is provided between adjacent conductive film layers. Exemplarily, the pixel circuit provided in the circuit layer includes a transistor and a storage capacitor. The transistor includes a semiconductor, a gate, a source and a drain. The storage capacitor includes a first plate and a second plate. As an example, the gate and the first plate may be located in the first conductive layer, the second plate may be located in the second conductive layer, and the source and the drain may be located in the third conductive layer.

[0071] Optionally, the light-emitting functional layer 40 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. It can be selected according to the specific type of the light-emitting functional layer 40, and there is no special limitation. The electron injection layer, the electron transport layer, and the hole blocking layer can be arranged between the first electrode 50 and the light-emitting material layer. The electron blocking layer, the hole transport layer, and the hole injection layer can be arranged between the second electrode 60 and the light-emitting material layer.

[0072] The material of the first electrode 50 can be one of the metal materials such as silver (Ag), aluminum (Al), lithium (Li), magnesium (Mg), ytterbium (Yb), calcium (Ca) or indium (In), and can also be 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.

[0073] The material of the second electrode 60 is generally a material with a high work function to improve the 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), etc. For example, the second electrode 60 may be made of an ITO-Ag-ITO composite material, without particular limitation.

[0074] Optionally, a planarization layer is further included between the substrate 10 and the pixel definition layer 20 . The material of the planarization layer may be hexamethyldisiloxane, epoxy resin or polyimide, or other materials, which is not limited in this embodiment.

[0075] In some optional embodiments, the first outer edge d1 is in a polygonal shape and includes a plurality of sides with different lengths, and the first segment t1 is the longest side among the plurality of sides with different lengths.

[0076] It can be understood that, since the first segment t1 is the edge corresponding to the side of the isolation structure 30 used to overlap the first electrode 50, the side of the isolation structure 30 corresponding to the first segment t1 is used to overlap with the first electrode 50. By making the first segment t1 the longest side among the multiple sides with different lengths, the overlapping length of the first electrode 50 and the corresponding side of the isolation structure 30 is increased, thereby increasing the overlapping area of ​​the first electrode 50 and the corresponding side of the isolation structure 30. At the same time, since the first segment t1 is the longest side among the multiple sides with different lengths, the angle between the extension line of the first segment t1 and the first direction Y is greater than or equal to 0° and less than or equal to 26°. By increasing the overlapping height of the first electrode 50 formed on the isolation structure 30, the improvement of the overlapping effect of the first electrode 50 and the isolation structure 30 is more obvious, and the display effect of the display panel is effectively improved.

[0077] According to different shapes of the first outer edge d1 , the first segment t1 may be different sides. For example, when the first sub-edge B1 is a rectangle, the first segment t1 may include two long sides of the rectangle.

[0078] See also Figure 3 In some optional embodiments, the display panel also includes a pixel definition layer 20 disposed between the substrate 10 and the isolation structure 30, the pixel definition layer 20 includes a defining structure 21 and a second opening 22 defined by the defining structure 21, and the orthographic projection of the second opening 22 on the substrate 10 is located within the orthographic projection range of the first opening K on the substrate 10.

[0079] In this embodiment, the area of ​​the first opening K is greater than or equal to the area of ​​the second opening 22 , which can reduce the influence of the isolation structure 30 on the light emitting viewing angle of the light emitting functional layer 40 .

[0080] Optionally, the orthographic projection of the second opening 22 on the substrate 10 has a second outer edge d2 , and the first outer edge d1 and the adjacent second outer edge d2 are not parallel.

[0081] In the prior art, the second opening 22 and the first opening K usually adopt similar graphics, that is, the shapes of the orthographic projection graphics of the second opening 22 and the first opening K on the substrate 10 are the same, but the areas of the orthographic projection graphics of the two on the substrate 10 are different, and the edges of the second opening 22 and the first opening K are parallel to each other, that is, the second opening 22 and the first opening K have a fixed matching relationship, which is not conducive to the targeted adjustment of the light emitting effect of the light-emitting functional layer 40 when it is emitted from the first opening K. On the other hand, in order to ensure the image quality, the existing second opening 22 usually adopts a rhombus, rectangle or other shape, and its edge presents a 45° angle or other angles relative to the first sub-edge B1 of the display panel, and cannot be parallel or perpendicular. As a result, when the first electrode 50 is formed by evaporation, the angle between the extension line of the first segment t1 and the arrangement direction of each nozzle part 72 on the line source evaporation member 7 for evaporating the first electrode 50 cannot meet the angle relationship greater than or equal to 0° and less than or equal to 26°, which affects the climbing effect of the first electrode 50.

[0082] In order to solve the above problems, the embodiment of the present invention releases the matching relationship between the second opening 22 and the first opening K, so that the first outer edge d1 and the adjacent second outer edge d2 are not parallel. The light emitting effect of the light-emitting functional layer 40 when emitting from the first opening K can be adjusted in a targeted manner. At the same time, the overlap effect between the first electrode 50 and the isolation structure 30 can be improved by adjusting the angle between the extension line of the first segment t1 and the arrangement direction of each nozzle part 72 on the line source evaporation component 7 for evaporating the first electrode 50.

[0083] Optionally, the shape of the second outer edge d2 is a polygon, and the angles between the extension lines of the sides of the polygon and the first direction Y are all greater than 26°. Correspondingly, the angles between the sides of the first outer edge d1 in the prior art and the first direction Y are all greater than 26°, and the overlap effect between the first electrode 50 and the isolation structure 30 cannot meet the requirements. Therefore, it is necessary to adjust the shape of the first outer edge d1 in this embodiment accordingly, so that the angle between the extension line of the first segment t1 and the first direction Y is limited to be greater than or equal to 0° and less than or equal to 26°, so as to increase the overlap height of the first electrode 50 on the isolation structure 30, so that the overlap effect between the first electrode 50 and the isolation structure 30 meets the requirements, thereby improving the display effect of the display panel.

[0084] Optionally, the second outer edge d2 includes a second segment t2 , and an extension line of the second segment t2 is not parallel to an arrangement direction of each nozzle portion 72 on the line source evaporation member 7 for evaporating the first electrode 50 .

[0085] In this embodiment, since the arrangement direction of the nozzle parts 72 on the line source evaporation component 7 for evaporating the first electrode 50 is usually parallel to the first direction Y, the extension line of the second section t2 and the arrangement direction of the nozzle parts 72 on the line source evaporation component 7 for evaporating the first electrode 50 are not parallel, that is, the extension line of the second section t2 and the first direction Y are not parallel, and there is a certain angle between the two.

[0086] Optionally, the second outer edge d2 includes a second segment t2, and the angle between the extension line of the second segment t2 and the first direction Y is 45°, that is, the angle between the extension line of the second segment t2 and the extension line of the first sub-edge B1 of the display panel is 45° to ensure the light emitting effect of the display panel.

[0087] See also Figure 4 In some optional embodiments, the orthographic projection of the second opening 22 on the substrate 10 has at least one symmetry axis, and the orthographic projection of the first opening K on the substrate 10 is symmetrically arranged about the at least one symmetry axis.

[0088] It can be understood that by making the orthographic projection of the first opening K on the substrate 10 symmetrical about at least one symmetry axis, the optical symmetry effect of the display panel can be improved. For example, when the orthographic projections of the second opening 22 and the first opening K on the substrate 10 are both square, the orthographic projection of the second opening 22 on the substrate 10 has four symmetry axes, and the orthographic projection of the first opening K on the substrate 10 can be rotated 45° relative to the orthographic projection of the second opening 22 on the substrate 10, so that the orthographic projection of the first opening K on the substrate 10 can be symmetrical about the four symmetry axes of the second opening 22, so as to show an excellent optical symmetry effect.

[0089] In some optional embodiments, the isolation structure 30 includes a first portion 31 and a second portion 32 sequentially arranged in a direction away from the substrate 10 , and the orthographic projection of the first portion 31 on the substrate 10 is located within the orthographic projection of the second portion 32 on the substrate 10 .

[0090] In this embodiment, the orthographic projection of the first part 31 on the substrate 10 is located within the orthographic projection of the second part 32 on the substrate 10, so the size of the first part 31 is smaller than or equal to the size of the second part 32, so that the isolation structure 30 can separate the light-emitting functional layer 40 and the first electrode 50.

[0091] Optionally, the second portion 32 extends outwardly by a predetermined distance relative to the first portion 31, that is, the orthographic projection area of ​​the surface of the side of the first portion 31 facing away from the substrate 10 on the substrate 10 is smaller than the orthographic projection area of ​​the surface of the side of the second portion 32 facing the substrate 10 on the substrate 10, so as to facilitate defining the pattern of the light-emitting functional layer 40 and the first electrode 50.

[0092] Optionally, the first part 31 includes a first side surface C1 facing the first opening K and overlapping the first electrode 50, and the second part 32 includes a second side surface C2 facing the first opening K. The orthographic edge of the first part 31 on the substrate 10 is parallel to the orthographic edge of the second part 32 on the substrate 10, so as to ensure that the first electrode 50 can smoothly pass through the second part 32, enter the first opening K and overlap the first part 31, so as to ensure the consistency of the influence of the arrangement direction of each nozzle part 72 on the line source evaporation component 7 for evaporating the first electrode 50 and the angle relationship between the first segment t1 of the first outer edge d1 on the first part 31 and the second part 32.

[0093] Optionally, the orthographic projection edge of the first portion 31 on the substrate 10 coincides with the first outer edge d1; or, the orthographic projection edge of the second portion 32 on the substrate 10 coincides with the first outer edge d1.

[0094] Considering that the first electrode 50 needs to overlap the first side surface C1 of the first portion 31, the orthographic projection edge of the first portion 31 on the substrate 10 can be made to coincide with the first outer edge d1. Correspondingly, the angle between the extension line of the first segment t1 and the first direction Y will correspondingly affect the angle between the maximum evaporation path formed by the evaporation material sprayed by each nozzle portion 72 and the first side surface C1 on the cross section perpendicular to the extension line of the first segment t1. For example, Figures 6 to 9As shown, the cross section of the isolation structure 30 formed along the BB is perpendicular to the extension line of the first segment t1. The smaller the angle between the extension line of the first segment t1 and the first direction Y, the larger the angle between the maximum deposition path formed by the deposition material sprayed from each corresponding nozzle portion 72 and the first side surface C1 on the cross section perpendicular to the extension line of the first segment t1, and the higher the overlap height of the first electrode 50 on the first side surface C1. The larger the angle between the extension line of the first segment t1 and the first direction Y, the smaller the angle between the maximum deposition path formed by the deposition material sprayed from each corresponding nozzle portion 72 and the first side surface C1 on the cross section perpendicular to the extension line of the first segment t1, and the lower the overlap height of the first electrode 50 on the first side surface C1. Compared to Figure 7 The angle between the maximum evaporation path formed by the evaporation material sprayed by each corresponding nozzle part 72 in the prior art and the first side surface C1 is Fig. 9 As shown in the present embodiment, the angle between the maximum evaporation path formed by the evaporation material sprayed by each nozzle portion 72 corresponding to the display panel provided by the present embodiment and the first side surface C1 is larger, and the overlapping height of the first electrode 50 on the first side surface C1 is also higher, which effectively improves the overlapping effect of the first electrode 50 and the isolation structure 30, and improves the display effect of the display panel.

[0095] It should be noted that the influence of the angle between the extension line of the first section t1 and the first direction Y on the overlap height can also be considered by taking the cross section perpendicular to the arrangement direction of each nozzle part 72 as the angle of the observation surface. In the direction of the cross section perpendicular to the arrangement direction of each nozzle part 72, the angle between the maximum evaporation path of the evaporation material sprayed by each nozzle part 72 and the first side surface C1 remains unchanged, but the angle between the extension line of the first section t1 and the first direction Y will affect the distance that the second part 32 extends outward relative to the first part 31. The larger the angle between the extension line of the first section t1 and the first direction Y, the longer the distance that the second part 32 extends outward relative to the first part 31 in the cross section perpendicular to the arrangement direction of each nozzle part 72, the more shielding of the evaporation material, and the lower the overlap height of the first electrode 50 on the first side surface C1. On the contrary, the smaller the angle between the extension line of the first segment t1 and the first direction Y, the shorter the distance that the second portion 32 extends outward relative to the first portion 31 in the cross-section perpendicular to the arrangement direction of the nozzle portions 72, the less obstruction to the vapor deposition material, and the higher the overlap height of the first electrode 50 on the first side surface C1.

[0096] Therefore, in this embodiment, by limiting the angle between the extension line of the first segment t1 and the first direction Y to a smaller range, that is, greater than or equal to 0° and less than or equal to 26°, the overlapping height of the first electrode 50 on the first side surface C1 is increased, the overlapping effect of the first electrode 50 and the isolation structure 30 is improved, and the display effect of the display panel is improved.

[0097] Optionally, the first portion 31 includes a first cross section which is perpendicular to the plane of the substrate 10 and has a shape of a regular trapezoid. The first side surface C1 corresponds to a waist of the regular trapezoid so that the first electrode 50 and the first side surface C1 can overlap.

[0098] In some optional embodiments, the orthographic projection pattern of the first opening K on the substrate 10 is the same as the orthographic projection pattern of the second opening 22 on the substrate 10 , which can facilitate preparation and reduce production costs.

[0099] The same shape can be understood as the orthographic projection figure of the second opening 22 on the substrate 10 and the orthographic projection figure of the first opening K on the substrate 10 are two figures with equal corresponding angles and proportional corresponding sides. For example, when the orthographic projection figure of the first opening K on the substrate 10 is a rectangle, the orthographic projection figure of the second opening 22 on the substrate 10 can also be a figure with a side length smaller than the side length of the orthographic projection figure of the first opening K on the substrate 10, which is a rectangle, and the side lengths of the two rectangles are proportional.

[0100] Optionally, the orthographic projection figure of the first opening K on the substrate 10 and the orthographic projection figure of the second opening 22 on the substrate 10 are both rectangular.

[0101] See also Figure 2 or Figure 4 The first outer edge d1 includes a relative first edge d11 and a second edge d12 and a relative third edge d13 and a fourth edge d14, the second outer edge d2 includes a relative fifth edge d15 and a sixth edge d16 and a relative seventh edge d17 and an eighth edge d18; the first segment t1 is any one of the first edge d11, the second edge d12, the third edge d13 and the fourth edge d14, the first edge d11 and the fifth edge d15 and the seventh edge d17 are not parallel, and the third edge d13 and the fifth edge d15 and the seventh edge d17 are not parallel.

[0102] It can be understood that since the orthographic projection figures of the first opening K on the substrate 10 and the orthographic projection figures of the second opening 22 on the substrate 10 are both rectangular, that is, the first outer edge d1 and the second outer edge d2 respectively include four sides, and the two opposite sides are parallel to each other, for example, the first edge d11 and the second edge d12 are parallel to each other, and the third edge d13 and the fourth edge d14 are parallel to each other.

[0103] In this embodiment, the first edge d11 is not parallel to the fifth edge d15 and the seventh edge d17, and the third edge d13 is not parallel to the fifth edge d15 and the seventh edge d17. That is, the four sides of the first outer edge d1 and the four sides of the second outer edge d2 are not parallel. That is, compared with the case where the sides of the first opening K and the second opening 22 are parallel, the first opening K can be rotated relative to the second opening 22 by a certain angle, but the rotation angle is not an integer multiple of 90°.

[0104] Optionally, the angles between the extension lines of the first edge d11, the fifth edge d15 and the seventh edge d17 are all equal to 45°, so as to ensure that the orthographic projection pattern of the first opening K on the substrate 10 can be symmetrically distributed relative to the symmetry axis of the orthographic projection pattern of the second opening 22 on the substrate 10, thereby ensuring the optical symmetry effect of the display panel.

[0105] See also Figures 1 to 5 The embodiment of the present invention further provides a display panel, comprising: a substrate 10; an isolation structure 30, which is arranged on one side of the substrate 10, and the isolation structure 30 encloses a first opening K; a light-emitting functional layer 40, at least a portion of the light-emitting functional layer 40 is arranged in the first opening K; a first electrode 50, which is arranged on the side of the light-emitting functional layer 40 away from the substrate 10, and the first electrode 50 is connected to the isolation structure 30; wherein, the orthographic projection of the first opening K on the substrate 10 has a first outer edge d1 facing the light-emitting functional layer 40, the first outer edge d1 includes a first segment t1, and the angle between the extension line of the first segment t1 and the arrangement direction of each nozzle part 72 on the line source evaporation member 7 for evaporating the first electrode 50 is greater than or equal to 0° and less than or equal to 26°.

[0106] The display panel provided by the embodiment of the present invention includes a substrate 10, an isolation structure 30, a light-emitting functional layer 40 and a first electrode 50. The isolation structure 30 encloses a first opening K to limit the setting range of the light-emitting functional layer 40. The orthographic projection of the first opening K on the substrate 10 has a first outer edge d1 facing the light-emitting functional layer 40. The inventors have found through research that the angle between the extension line of the first segment t1 and the arrangement direction of each nozzle part 72 on the line source evaporation component 7 for evaporating the first electrode 50 is greater than or equal to 0° and less than or equal to 26°. When preparing the first electrode 50, the overlapping height of the first electrode 50 on the isolation structure 30 can be effectively improved, thereby increasing the overlapping area of ​​the first electrode 50 and the isolation structure 30, improving the overlapping effect of the first electrode 50 and the isolation structure 30, and thereby improving the display effect of the display panel.

[0107] Among them, Figure 5As shown, the line source evaporation member 7 is usually in the shape of a long strip, and a plurality of nozzle parts 72 are provided on the line source evaporation member 7, and each nozzle part 72 is arranged along a straight line, and the extension direction of the straight line is the arrangement direction of the nozzle part 72, for example, including the main body 71 and the nozzle part 72 provided on the main body 71 along the extension direction of the main body 71, and a plurality of nozzle parts 72 are arranged in sequence on the main body 71, and the arrangement direction of each nozzle part 72 will affect the evaporation range. The angle between the extension line of the first section t1 and the arrangement direction of each nozzle part 72 on the line source evaporation member 7 for evaporating the first electrode 50 is greater than or equal to 0° and less than or equal to 26°, which can limit the relative position between the maximum evaporation path formed by the evaporation material sprayed by each nozzle part 72 and the isolation structure 30, increase the overlap height of the formed first electrode 50 on the isolation structure 30, so that the overlap effect of the first electrode 50 and the isolation structure 30 meets the requirements, and improves the display effect of the display panel.

[0108] See also Figure 3 In some optional embodiments, the display panel also includes a pixel definition layer 20 disposed between the substrate 10 and the isolation structure 30, the pixel definition layer 20 includes a defining structure 21 and a second opening 22 defined by the defining structure 21, and the orthographic projection of the second opening 22 on the substrate 10 is located within the orthographic projection range of the first opening K on the substrate 10.

[0109] In this embodiment, the area of ​​the first opening K is greater than or equal to the area of ​​the second opening 22 , which can reduce the influence of the isolation structure 30 on the light emitting viewing angle of the light emitting functional layer 40 .

[0110] Optionally, the orthographic projection of the second opening 22 on the substrate 10 has a second outer edge d2 , and the first outer edge d1 and the adjacent second outer edge d2 are not parallel.

[0111] In the prior art, the second opening 22 and the first opening K usually adopt similar graphics, and the opposite edges of the second opening 22 and the first opening K are parallel to each other, that is, the second opening 22 and the first opening K have a fixed matching relationship, which is not conducive to the targeted adjustment of the light emitting effect of the light-emitting functional layer 40 when it is emitted from the first opening K. On the other hand, in order to ensure the image quality, the existing second opening 22 usually adopts a rhombus, rectangle and other shapes, and its edges are at an angle of 45° or other angles relative to the first edge d11 of the display panel, and cannot be parallel or perpendicular. As a result, when the first electrode 50 is formed by evaporation, the angle between the extension line of the first segment t1 and the arrangement direction of each nozzle part 72 on the line source evaporation member 7 used for evaporating the first electrode 50 cannot meet the angle relationship greater than or equal to 0° and less than or equal to 26°, which affects the climbing effect of the first electrode 50.

[0112] In order to solve the above problems, the embodiment of the present invention releases the matching relationship between the second opening 22 and the first opening K, so that the first outer edge d1 and the adjacent second outer edge d2 are not parallel. The light emitting effect of the light-emitting functional layer 40 when emitting from the first opening K can be adjusted in a targeted manner. At the same time, the overlap effect between the first electrode 50 and the isolation structure 30 can be improved by adjusting the angle between the extension line of the first segment t1 and the arrangement direction of each nozzle part 72 on the line source evaporation component 7 for evaporating the first electrode 50.

[0113] Optionally, the shape of the second outer edge d2 is a polygon, and the angles between the extension lines of the sides of the polygon and the first direction Y are all greater than 26°. Correspondingly, the angles between the sides of the first outer edge d1 in the prior art and the first direction Y are all greater than 26°, and the overlap effect between the first electrode 50 and the isolation structure 30 cannot meet the requirements. Therefore, it is necessary to adjust the shape of the first outer edge d1 in this embodiment accordingly, so that the angle between the extension line of the first segment t1 and the first direction Y is limited to be greater than or equal to 0° and less than or equal to 26°, so as to increase the overlap height of the first electrode 50 on the isolation structure 30, so that the overlap effect between the first electrode 50 and the isolation structure 30 meets the requirements, thereby improving the display effect of the display panel.

[0114] Optionally, the second outer edge d2 includes a second segment t2 , and an extension line of the second segment t2 is not parallel to an arrangement direction of each nozzle portion 72 on the line source evaporation member 7 for evaporating the first electrode 50 .

[0115] In this embodiment, since the arrangement direction of the nozzle parts 72 on the line source evaporation component 7 for evaporating the first electrode 50 is usually parallel to the first direction Y, the extension line of the second section t2 and the arrangement direction of the nozzle parts 72 on the line source evaporation component 7 for evaporating the first electrode 50 are not parallel, that is, the extension line of the second section t2 and the first direction Y are not parallel, and there is a certain angle between the two.

[0116] Optionally, the second outer edge d2 includes a second segment t2, and the angle between the extension line of the second segment t2 and the first direction Y is 45°, that is, the angle between the extension line of the second segment t2 and the extension line of the first edge d11 of the display panel is 45° to ensure the light emitting effect of the display panel.

[0117] See also Figures 1 to 3The embodiment of the present invention further provides a display panel, comprising: a substrate 10; a data line 8 and a scan line 9, which are arranged on one side of the substrate 10; an isolation structure 30, which is arranged on one side of the substrate 10, and the isolation structure 30 encloses a first opening K; a light-emitting functional layer 40, at least a part of the light-emitting functional layer 40 is arranged in the first opening K; a first electrode 50, which is arranged on the side of the light-emitting functional layer 40 away from the substrate 10, and the first electrode 50 is in contact with the isolation structure 30; wherein, the orthographic projection of the first opening K on the substrate 10 has a first outer edge d1 facing the light-emitting functional layer 40, the first outer edge d1 includes a first segment t1, and the angle between the extension line of the first segment t1 and the first direction Y is greater than or equal to 0° and less than or equal to 26°, wherein the first direction Y is the extension direction of any one of the data line 8 and the scan line 9.

[0118] The display panel provided by the embodiment of the present invention includes a substrate 10, an isolation structure 30, a light-emitting functional layer 40 and a first electrode 50. The isolation structure 30 encloses a first opening K to limit the setting range of the light-emitting functional layer 40. The orthographic projection of the first opening K on the substrate 10 has a first outer edge d1 facing the light-emitting functional layer 40, and the first direction Y is the extension direction of any one of the data line 8 and the scanning line 9. Since the arrangement direction of each nozzle part 72 on the line source evaporation member 7 used for evaporating the first electrode 50 is usually parallel to the first direction Y, the inventor has found through research that the angle between the extension line defining the first segment t1 and the first direction Y is greater than or equal to 0° and less than or equal to 26°. When preparing the first electrode 50, the overlapping height of the first electrode 50 on the isolation structure 30 can be effectively improved, thereby increasing the overlapping area of ​​the first electrode 50 and the isolation structure 30, improving the overlapping effect of the first electrode 50 and the isolation structure 30, and thereby improving the display effect of the display panel.

[0119] Optionally, the extension directions of the data line 8 and the scan line 9 intersect, for example, the extension directions of the data line 8 and the scan line 9 are perpendicular to each other, and the first opening K is usually arranged in the area surrounded by the data line 8 and the scan line 9 to avoid affecting the light emission of the light-emitting functional layer 40.

[0120] Optionally, the first direction Y may be defined as the extension direction of the data line 8 according to actual needs.

[0121] Optionally, the first direction Y is parallel to an arrangement direction of the nozzle portions 72 on the line source evaporation component 7 for evaporating the first electrode 50 .

[0122] The line source evaporation component 7 is usually in a long strip shape, and a plurality of nozzle portions 72 are provided on the line source evaporation component 7, and each nozzle portion 72 is arranged along a straight line, and the extension direction of the straight line is the arrangement direction of the nozzle portion 72. For example, it includes a main body portion 71 and a nozzle portion 72 provided on the main body portion 71 along the extension direction of the main body portion 71. A plurality of nozzle portions 72 are arranged in sequence on the main body portion 71, and the arrangement direction of each nozzle portion 72 will affect the evaporation range. When the first direction Y is parallel to the arrangement direction of each nozzle part 72 on the line source evaporation component 7 for evaporating the first electrode 50, correspondingly, the angle between the extension line of the first segment t1 and the arrangement direction of each nozzle part 72 on the line source evaporation component 7 for evaporating the first electrode 50 is greater than or equal to 0° and less than or equal to 26°, thereby limiting the relative position between the maximum evaporation path formed by the evaporation material sprayed by each nozzle part 72 and the isolation structure 30, increasing the overlapping height of the formed first electrode 50 on the isolation structure 30, so that the overlapping effect of the first electrode 50 and the isolation structure 30 meets the requirements, thereby improving the display effect of the display panel.

[0123] See also Figure 3 In some optional embodiments, the display panel also includes a pixel definition layer 20 disposed between the substrate 10 and the isolation structure 30, the pixel definition layer 20 includes a defining structure 21 and a second opening 22 defined by the defining structure 21, and the orthographic projection of the second opening 22 on the substrate 10 is located within the orthographic projection range of the first opening K on the substrate 10.

[0124] In this embodiment, the area of ​​the first opening K is greater than or equal to the area of ​​the second opening 22 , which can reduce the influence of the isolation structure 30 on the light emitting viewing angle of the light emitting functional layer 40 .

[0125] Optionally, the orthographic projection of the second opening 22 on the substrate 10 has a second outer edge d2 , and the first outer edge d1 and the adjacent second outer edge d2 are not parallel.

[0126] In the prior art, the second opening 22 and the first opening K usually adopt similar graphics, and the opposite edges of the second opening 22 and the first opening K are parallel to each other, that is, the second opening 22 and the first opening K have a fixed matching relationship, which is not conducive to the targeted adjustment of the light emitting effect of the light-emitting functional layer 40 when it is emitted from the first opening K. On the other hand, in order to ensure the image quality, the existing second opening 22 usually adopts a rhombus, rectangle and other shapes, and its edges are at an angle of 45° or other angles relative to the first edge d11 of the display panel, and cannot be parallel or perpendicular. As a result, when the first electrode 50 is formed by evaporation, the angle between the extension line of the first segment t1 and the arrangement direction of each nozzle part 72 on the line source evaporation member 7 used for evaporating the first electrode 50 cannot meet the angle relationship greater than or equal to 0° and less than or equal to 26°, which affects the climbing effect of the first electrode 50.

[0127] In order to solve the above problems, the embodiment of the present invention releases the matching relationship between the second opening 22 and the first opening K, so that the first outer edge d1 and the adjacent second outer edge d2 are not parallel. The light emitting effect of the light-emitting functional layer 40 when emitting from the first opening K can be adjusted in a targeted manner. At the same time, the overlap effect between the first electrode 50 and the isolation structure 30 can be improved by adjusting the angle between the extension line of the first segment t1 and the arrangement direction of each nozzle part 72 on the line source evaporation component 7 for evaporating the first electrode 50.

[0128] Optionally, the shape of the second outer edge d2 is a polygon, and the angles between the extension lines of the sides of the polygon and the first direction Y are all greater than 26°. Correspondingly, the angles between the sides of the first outer edge d1 in the prior art and the first direction Y are all greater than 26°, and the overlap effect between the first electrode 50 and the isolation structure 30 cannot meet the requirements. Therefore, it is necessary to adjust the shape of the first outer edge d1 in this embodiment accordingly, so that the angle between the extension line of the first segment t1 and the first direction Y is limited to be greater than or equal to 0° and less than or equal to 26°, so as to increase the overlap height of the first electrode 50 on the isolation structure 30, so that the overlap effect between the first electrode 50 and the isolation structure 30 meets the requirements, thereby improving the display effect of the display panel.

[0129] Optionally, the second outer edge d2 includes a second segment t2 , and an extension line of the second segment t2 is not parallel to an arrangement direction of each nozzle portion 72 on the line source evaporation member 7 for evaporating the first electrode 50 .

[0130] In this embodiment, since the arrangement direction of the nozzle parts 72 on the line source evaporation component 7 for evaporating the first electrode 50 is usually parallel to the first direction Y, the extension line of the second section t2 and the arrangement direction of the nozzle parts 72 on the line source evaporation component 7 for evaporating the first electrode 50 are not parallel, that is, the extension line of the second section t2 and the first direction Y are not parallel, and there is a certain angle between the two.

[0131] Optionally, the second outer edge d2 includes a second segment t2, and the angle between the extension line of the second segment t2 and the first direction Y is 45°, that is, the angle between the extension line of the second segment t2 and the extension line of the first edge d11 of the display panel is 45° to ensure the light emitting effect of the display panel.

[0132] An embodiment of the present invention further provides a display panel, comprising: a substrate 10; an isolation structure 30, disposed on one side of the substrate 10, the isolation structure 30 enclosing a first opening K; a pixel definition layer 20, disposed on one side of the substrate 10, the pixel definition layer 20 comprising a limiting structure 21 and a plurality of second openings 22 defined by the limiting structure 21; a light-emitting functional layer 40, at least a portion of the light-emitting functional layer 40 being disposed in the second opening 22; wherein the orthographic projection of the first opening K on the substrate 10 has a first outer edge d1 facing the second opening 22, the orthographic projection of the second opening 22 on the substrate 10 has a second outer edge d2, and the first outer edge d1 and the adjacent second outer edge d2 are not parallel.

[0133] The display panel provided by the embodiment of the present invention includes a substrate 10, a pixel definition layer 20, a light-emitting functional layer 40 and a limiting structure 21. The light-emitting functional layer 40 can be arranged in the second opening 22 to realize the light-emitting display of the display panel. The isolation structure 30 is arranged on the side of the pixel definition layer 20 away from the substrate 10. In the embodiment of the present invention, by making the first outer edge d1 and the adjacent second outer edge d2 non-parallel, that is, the shape and size of the second opening 22 can be kept unchanged, and the position of the first opening K relative to the second opening 22 can be changed. On the one hand, the light emission effect of the light-emitting functional layer 40 when emitting from the first opening K can be changed to meet different requirements for the light emission effect, wherein the adjustment of the extension line direction of the first outer edge d1 of the first opening K corresponds to the adjustment of the extension direction of the outer edge of the isolation structure 30. On the other hand, when the first electrode 50 is formed on the side of the light-emitting functional layer 40 away from the substrate 10 by the evaporation process in the subsequent process, the overlap effect between the first electrode 50 and the isolation structure 30 can also be improved by adjusting the relative position between the extension line direction of the first outer edge d1 of the orthographic projection of the first opening K on the substrate 10 and the evaporation direction.

[0134] In the prior art, the second opening 22 and the first opening K usually adopt similar graphics, and the relative edges of the second opening 22 and the first opening K are parallel to each other, that is, the second opening 22 and the first opening K have a fixed matching relationship, which is not conducive to the targeted adjustment of the light emitting effect of the light-emitting functional layer 40 when it is emitted from the first opening K. On the other hand, in order to ensure the image quality, the existing second opening 22 usually adopts a rhombus, rectangle and other shapes, and its edge is at a 45° angle or other angles relative to the display panel frame, and cannot be parallel or perpendicular. As a result, when the first electrode 50 is formed by evaporation, the extension line of the first outer edge d1 of the orthographic projection of the first opening K on the substrate 10 and the moving direction of the line source evaporation member 7 used for evaporation present a 45° angle or other angle, which cannot be perpendicular, affecting the climbing effect of the first electrode 50.

[0135] In order to solve the above problem, the second opening 22 and the first opening K in the embodiment of the present invention are not in a matching relationship, so that the first outer edge d1 and the adjacent second outer edge d2 are not parallel, so that the light emitting effect of the light-emitting functional layer 40 when emitting from the first opening K can be adjusted in a targeted manner, and the overlap effect between the first electrode 50 and the isolation structure 30 after entering the first opening K can be improved by adjusting the relative position between the extension line direction of the first outer edge d1 of the orthographic projection of the first opening K on the substrate 10 and the evaporation direction. In some optional embodiments, the display panel further includes a first electrode 50, the first electrode 50 is located on the side of the light-emitting functional layer 40 away from the substrate 10, and the first electrode 50 is connected to the isolation structure 30. The first outer edge d1 includes a first section t1, and the angle between the extension line of the first section t1 and the arrangement direction of each nozzle part 72 on the line source evaporation member 7 for evaporating the first electrode 50 is greater than or equal to 0° and less than or equal to 26°.

[0136] The line source evaporation member 7 is usually in the shape of a long strip, and a plurality of nozzle parts 72 are provided on the line source evaporation member 7, and each nozzle part 72 is arranged along a straight line, and the extension direction of the straight line is the arrangement direction of the nozzle part 72, for example, including the main body 71 and the nozzle part 72 provided on the main body 71 along the extension direction of the main body 71, and a plurality of nozzle parts 72 are arranged in sequence on the main body 71, and the arrangement direction of each nozzle part 72 will affect the evaporation range. By making the angle between the extension line of the first section t1 and the arrangement direction of each nozzle part 72 on the line source evaporation member 7 for evaporating the first electrode 50 greater than or equal to 0° and less than or equal to 26°, the relative position between the maximum evaporation path formed by the evaporation material sprayed by each nozzle part 72 and the isolation structure 30 can be limited, and the overlap height of the formed first electrode 50 on the isolation structure 30 is increased, so that the overlap effect of the first electrode 50 and the isolation structure 30 meets the requirements, and the display effect of the display panel is improved.

[0137] Optionally, the shape of the second outer edge d2 is a polygon, and the angles between the extension lines of the sides of the polygon and the first direction Y are all greater than 26°. Correspondingly, the angles between the sides of the first outer edge d1 in the prior art and the first direction Y are all greater than 26°, and the overlap effect between the first electrode 50 and the isolation structure 30 cannot meet the requirements. Therefore, it is necessary to adjust the shape of the first outer edge d1 in this embodiment accordingly, so that the angle between the extension line of the first segment t1 and the first direction Y is limited to be greater than or equal to 0° and less than or equal to 26°, so as to increase the overlap height of the first electrode 50 on the isolation structure 30, so that the overlap effect between the first electrode 50 and the isolation structure 30 meets the requirements, thereby improving the display effect of the display panel.

[0138] Optionally, the second outer edge d2 includes a second segment t2 , and an extension line of the second segment t2 is not parallel to an arrangement direction of each nozzle portion 72 on the line source evaporation member 7 for evaporating the first electrode 50 .

[0139] In this embodiment, since the arrangement direction of the nozzle parts 72 on the line source evaporation component 7 for evaporating the first electrode 50 is usually parallel to the first direction Y, the extension line of the second section t2 and the arrangement direction of the nozzle parts 72 on the line source evaporation component 7 for evaporating the first electrode 50 are not parallel, that is, the extension line of the second section t2 and the first direction Y are not parallel, and there is a certain angle between the two.

[0140] Optionally, the second outer edge d2 includes a second segment t2, and the angle between the extension line of the second segment t2 and the first direction Y is 45°, that is, the angle between the extension line of the second segment t2 and the extension line of the first edge d11 of the display panel is 45° to ensure the light emitting effect of the display panel.

[0141] See also Figure 3 In some optional embodiments, the orthographic projection pattern of the first opening K on the substrate 10 is the same as the orthographic projection pattern of the second opening 22 on the substrate 10, which can facilitate preparation and reduce production costs.

[0142] The same shape can be understood as the orthographic projection figure of the second opening 22 on the substrate 10 and the orthographic projection figure of the first opening K on the substrate 10 are two figures with equal corresponding angles and proportional corresponding sides. For example, when the orthographic projection figure of the first opening K on the substrate 10 is a rectangle, the orthographic projection figure of the second opening 22 on the substrate 10 can also be a figure with a side length smaller than the side length of the orthographic projection figure of the first opening K on the substrate 10, which is a rectangle, and the side lengths of the two rectangles are proportional.

[0143] Optionally, the orthographic projection figure of the first opening K on the substrate 10 and the orthographic projection figure of the second opening 22 on the substrate 10 are both rectangular.

[0144] See also Figure 2 or Figure 4 The first outer edge d1 includes a relative first edge d11 and a second edge d12 and a relative third edge d13 and a fourth edge d14, the second outer edge d2 includes a relative fifth edge d15 and a sixth edge d16 and a relative seventh edge d17 and an eighth edge d18; the first segment t1 is any one of the first edge d11, the second edge d12, the third edge d13 and the fourth edge d14, the first edge d11 and the fifth edge d15 and the seventh edge d17 are not parallel, and the third edge d13 and the fifth edge d15 and the seventh edge d17 are not parallel.

[0145] It can be understood that since the orthographic projection figures of the first opening K on the substrate 10 and the orthographic projection figures of the second opening 22 on the substrate 10 are both rectangular, that is, the first outer edge d1 and the second outer edge d2 respectively include four sides, and the two opposite sides are parallel to each other, for example, the first edge d11 and the second edge d12 are parallel to each other, and the third edge d13 and the fourth edge d14 are parallel to each other.

[0146] In this embodiment, the first edge d11 is not parallel to the fifth edge d15 and the seventh edge d17, and the third edge d13 is not parallel to the fifth edge d15 and the seventh edge d17. That is, the four sides of the first outer edge d1 and the four sides of the second outer edge d2 are not parallel. That is, compared with the case where the sides of the first opening K and the second opening 22 are parallel, the first opening K can be rotated relative to the second opening 22 by a certain angle, but the rotation angle is not an integer multiple of 90°.

[0147] Optionally, the angles between the extension lines of the first edge d11, the fifth edge d15 and the seventh edge d17 are all equal to 45°, so as to ensure that the orthographic projection pattern of the first opening K on the substrate 10 can be symmetrically distributed relative to the symmetry axis of the orthographic projection pattern of the second opening 22 on the substrate 10, thereby ensuring the optical symmetry effect of the display panel.

[0148] See also Fig.10 The embodiment of the present invention further provides a method for preparing a display panel, comprising the following steps:

[0149] S110: Provide a substrate 10, such as Fig.11 As shown;

[0150] S120: forming an isolation structure 30 on one side of the substrate 10, the isolation structure 30 encloses a first opening K, such as Fig.12 As shown;

[0151] S130: forming a light-emitting functional layer 40, wherein at least a portion of the light-emitting functional layer 40 is disposed in the first opening K, such as Fig.13 As shown;

[0152] S140: forming a first electrode 50 on the side of the light-emitting functional layer 40 away from the substrate 10, the first electrode 50 is connected to the isolation structure 30, the orthographic projection of the first opening K on the substrate 10 has a first outer edge d1 facing the light-emitting functional layer 40, the first outer edge d1 includes a first segment t1, and the angle between the extension line of the first segment t1 and the arrangement direction of each nozzle part 72 on the line source evaporation member 7 for evaporating the first electrode 50 is greater than or equal to 0° and less than or equal to 26°, such as Figure 2 and Figure 3 shown.

[0153] In the display panel preparation method provided in the embodiment of the present invention, the isolation structure 30 encloses a first opening K to limit the setting range of the light-emitting functional layer 40. The orthographic projection of the first opening K on the substrate 10 has a first outer edge d1 facing the light-emitting functional layer 40. The inventors have found through research that the angle between the extension line of the first segment t1 and the arrangement direction of each nozzle part 72 on the line source evaporation component 7 for evaporating the first electrode 50 is greater than or equal to 0° and less than or equal to 26°. When preparing the first electrode 50, the overlapping height of the first electrode 50 on the isolation structure 30 can be effectively improved, thereby increasing the overlapping area between the first electrode 50 and the isolation structure 30, improving the overlapping effect of the first electrode 50 and the isolation structure 30, and thereby improving the display effect of the display panel.

[0154] In step S110, the substrate 10 can be formed by coating, curing, film forming and other processes. The substrate 10 can be a hard substrate, such as a glass substrate; or a flexible substrate, and its material can be polyimide, polystyrene, polyethylene terephthalate, polyparaxylene, polyethersulfone or polyethylene naphthalate. The substrate 10 is mainly used to support the device disposed thereon.

[0155] In step S120 , the isolation structure 30 may be formed by evaporation or sputtering.

[0156] In step S130 , the electron injection layer, electron transport layer, hole blocking layer, luminescent material layer, electron blocking layer, hole transport layer and hole injection layer of the light-emitting functional layer 40 may be formed by an evaporation process.

[0157] In step S140, the line source evaporation component 7 is usually in a long strip shape, and a plurality of nozzle portions 72 are provided on the line source evaporation component 7, and each nozzle portion 72 is arranged along a straight line, and the extension direction of the straight line is the arrangement direction of the nozzle portion 72. For example, it includes a main body portion 71 and a nozzle portion 72 provided on the main body portion 71 along the extension direction of the main body portion 71. A plurality of nozzle portions 72 are arranged in sequence on the main body portion 71, and the arrangement direction of each nozzle portion 72 will affect the evaporation range.

[0158] The angle between the extension line of the first segment t1 and the arrangement direction of each nozzle part 72 on the line source evaporation component 7 used to evaporate the first electrode 50 is greater than or equal to 0° and less than or equal to 26°, thereby limiting the relative position between the maximum evaporation path formed by the evaporation material sprayed by each nozzle part 72 and the isolation structure 30, increasing the overlapping height of the formed first electrode 50 on the isolation structure 30, so that the overlapping effect of the first electrode 50 and the isolation structure 30 meets the requirements, thereby improving the display effect of the display panel.

[0159] In some optional embodiments, between the steps of providing a substrate 10 and forming an isolation structure 30 on one side of the substrate 10, the step further includes: forming a pixel definition layer 20 on one side of the substrate 10, the pixel definition layer 20 includes a limiting structure 21 and a second opening 22 defined by the limiting structure 21, the second opening 22 having a second outer edge d2 in its orthographic projection on the substrate 10; in the step of forming the isolation structure 30 on one side of the substrate 10, the first outer edge d1 and the adjacent second outer edge d2 are not parallel.

[0160] In the prior art, the second opening 22 and the first opening K usually adopt similar graphics, and the opposite edges of the second opening 22 and the first opening K are parallel to each other, that is, the second opening 22 and the first opening K have a fixed matching relationship, which is not conducive to the targeted adjustment of the light emitting effect of the light-emitting functional layer 40 when it is emitted from the first opening K. On the other hand, in order to ensure the image quality, the existing second opening 22 usually adopts a rhombus, rectangle and other shapes, and its edges are at an angle of 45° or other angles relative to the first edge d11 of the display panel, and cannot be parallel or perpendicular. As a result, when the first electrode 50 is formed by evaporation, the angle between the extension line of the first segment t1 and the arrangement direction of each nozzle part 72 on the line source evaporation member 7 used for evaporating the first electrode 50 cannot meet the angle relationship greater than or equal to 0° and less than or equal to 26°, which affects the climbing effect of the first electrode 50.

[0161] In order to solve the above problems, the embodiment of the present invention releases the matching relationship between the second opening 22 and the first opening K, so that the first outer edge d1 and the adjacent second outer edge d2 are not parallel. The light emitting effect of the light-emitting functional layer 40 when emitting from the first opening K can be adjusted in a targeted manner. At the same time, the overlap effect between the first electrode 50 and the isolation structure 30 can be improved by adjusting the angle between the extension line of the first segment t1 and the arrangement direction of each nozzle part 72 on the line source evaporation component 7 for evaporating the first electrode 50.

[0162] Optionally, the shape of the second outer edge d2 is a polygon, and the angle between the extension line of the side of the polygon and the first direction Y is greater than 26°. Correspondingly, the angle between each side of the first outer edge d1 in the prior art and the arrangement direction of each nozzle part 72 on the line source evaporation member 7 for evaporating the first electrode 50 is greater than 26°, and the overlap effect between the first electrode 50 and the isolation structure 30 cannot meet the requirements. Therefore, it is necessary to adjust the shape of the first outer edge d1 in this embodiment accordingly, so that the angle between the extension line of the first segment t1 and the arrangement direction of each nozzle part 72 on the line source evaporation member 7 for evaporating the first electrode 50 is greater than or equal to 0° and less than or equal to 26°, so as to increase the overlap height of the first electrode 50 on the isolation structure 30, so that the overlap effect of the first electrode 50 and the isolation structure 30 meets the requirements, and the display effect of the display panel is improved.

[0163] Optionally, in the step of forming the first electrode on the side of the light-emitting functional layer facing away from the substrate: the arrangement direction of each nozzle portion 72 on the line source evaporation member 7 for evaporating the first electrode 50 is not parallel to the extension line of the second segment t2.

[0164] In this embodiment, since the arrangement direction of the nozzle portions 72 on the line source evaporation component 7 for evaporating the first electrode 50 is usually parallel to the extension direction of the first sub-edge B1 of the display panel, that is, the first direction Y, the extension line of the second segment t2 and the arrangement direction of the nozzle portions 72 on the line source evaporation component 7 for evaporating the first electrode 50 are not parallel, that is, the extension line of the second segment t2 and the first direction Y are not parallel, and there is a certain angle between the two.

[0165] Optionally, the second outer edge d2 includes a second segment t2, and the angle between the extension line of the second segment t2 and the first direction Y is 45°, that is, the angle between the extension line of the second segment t2 and the extension line of the first edge d11 of the display panel is 45° to ensure the light emitting effect of the display panel.

[0166] Optionally, the arrangement direction of each nozzle part 72 on the line source evaporation component 7 is perpendicular to the moving direction of the line source evaporation component 7. The inventors have found through research that the moving direction of the line source evaporation component 7 for evaporating the first electrode 50 will also affect the overlapping height of the first electrode 50 on the isolation structure 30. The arrangement direction of each nozzle part 72 on the line source evaporation component 7 for evaporating the first electrode 50 is perpendicular to the moving direction of the line source evaporation component 7 for evaporating the first electrode 50, and when the angle between the extension line of the first segment t1 and the arrangement direction of each nozzle part 72 on the line source evaporation component 7 for evaporating the first electrode 50 is greater than or equal to 0° and less than or equal to 26°, the overlapping height of the first electrode 50 on the isolation structure 30 meets the requirements, and the stable overlapping of the first electrode 50 and the isolation structure 30 can be achieved, thereby improving the display effect of the display panel.

[0167] The display panel provided in the embodiment of the present application can be applied to mobile phones, or any electronic product with a display function, including but not limited to the following categories: televisions, laptops, desktop displays, tablet computers, digital cameras, smart bracelets, smart glasses, car displays, medical equipment, industrial control equipment, touch interactive terminals, etc. The embodiment of the present application does not make any special limitations on this.

[0168] The above are only specific implementation methods of the present application. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the protection scope of the present application is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in this application, and these modifications or replacements should be included in the protection scope of this application.

[0169] It should also be noted that the exemplary embodiments mentioned in this application describe some methods or systems based on a series of steps or devices. However, this application is not limited to the order of the above steps, that is, the steps can be performed in the order mentioned in the embodiment, or in a different order from the embodiment, or several steps can be performed simultaneously.

Claims

1. A display panel, characterized in that: The display panel has a first sub-edge extending along a first direction, and the display panel includes: substrate; An isolation structure is disposed on one side of the substrate, and the isolation structure encloses a first opening; a light-emitting functional layer, at least a portion of which is disposed in the first opening; A first electrode, disposed on a side of the light-emitting functional layer away from the substrate, the first electrode being connected to the isolation structure; The orthographic projection of the first opening on the substrate has a first outer edge facing the light-emitting functional layer, the first outer edge includes a first segment, and the angle between the extension line of the first segment and the first direction is greater than or equal to 0° and less than or equal to 26°.

2. The display panel according to claim 1, characterized in that: The display panel includes a data line and a scan line, one of the data line and the scan line extends along the first direction, and the other extends along a second direction, and the first direction and the second direction intersect.

3. The display panel according to claim 1, characterized in that: The first outer edge is in a polygonal shape and includes a plurality of sides with different lengths, and the first segment is the longest side among the plurality of sides with different lengths.

4. The display panel according to claim 1, characterized in that: Also included is a pixel definition layer disposed between the substrate and the isolation structure, the pixel definition layer including a definition structure and a second opening defined by the definition structure, the orthographic projection of the second opening on the substrate being within the orthographic projection range of the first opening on the substrate; The orthographic projection of the second opening on the substrate has a second outer edge, and the first outer edge and the adjacent second outer edge are not parallel; Preferably, the shape of the second outer edge is a polygon, and the angle between the extension line of the side of the polygon and the first direction is greater than 26°; Preferably, the second outer edge includes a second segment, and the angle between an extension line of the second segment and the first direction is 45°.

5. The display panel according to claim 4, characterized in that: The orthographic projection of the second opening on the substrate has at least one symmetry axis, and the orthographic projection of the first opening on the substrate is symmetrically arranged about the at least one symmetry axis.

6. The display panel according to claim 1, characterized in that: The isolation structure comprises a first part and a second part which are sequentially arranged in a direction away from the substrate, wherein an orthographic projection of the first part on the substrate is located within an orthographic projection of the second part on the substrate; Preferably, the edge of the second portion extends outwardly in the direction of the first opening by a predetermined distance relative to the edge of the first portion; Preferably, the first portion includes a first side surface facing the first opening and overlapping the first electrode, the second portion includes a second side surface facing the first opening, and an orthographic projection edge of the first portion on the substrate is parallel to an orthographic projection edge of the second portion on the substrate; Preferably, the orthographic projection edge of the first part on the substrate coincides with the first outer edge; or, the orthographic projection edge of the second part on the substrate coincides with the first outer edge; Preferably, the first part includes a first cross section, the first cross section is perpendicular to the plane where the substrate is located, and the shape of the first cross section is a regular trapezoid.

7. The display panel according to claim 4, characterized in that: The orthographic projection of the first opening on the substrate and the orthographic projection of the second opening on the substrate have the same shape; Preferably, the orthographic projection figure of the first opening on the substrate and the orthographic projection figure of the second opening on the substrate are both rectangular; Preferably, the first outer edge includes an opposite first edge and a second edge and an opposite third edge and a fourth edge, the second outer edge includes an opposite fifth edge and a sixth edge and an opposite seventh edge and an eighth edge; the first segment is any one of the first edge, the second edge, the third edge and the fourth edge, the first edge is not parallel to the fifth edge and the seventh edge, and the third edge is not parallel to the fifth edge and the seventh edge; Preferably, the angles between the extension lines of the first edge, the fifth edge, and the seventh edge are all equal to 45°.

8. A display panel, characterized in that: include: substrate; Data lines and scan lines are arranged on one side of the substrate; An isolation structure is disposed on one side of the substrate, and the isolation structure encloses a first opening; a light-emitting functional layer, at least a portion of which is disposed in the first opening; A first electrode is disposed on a side of the light-emitting functional layer away from the substrate, and the first electrode is in contact with the isolation structure; The orthographic projection of the first opening on the substrate has a first outer edge facing the light-emitting functional layer, the first outer edge includes a first segment, and the angle between the extension line of the first segment and a first direction is greater than or equal to 0° and less than or equal to 26°, wherein the first direction is the extension direction of any one of the data line and the scan line.

9. The display panel according to claim 8, characterized in that: The first direction is an extending direction of the data line.

10. The display panel according to claim 8, characterized in that: Also included is a pixel definition layer disposed between the substrate and the isolation structure, the pixel definition layer including a definition structure and a second opening defined by the definition structure, the orthographic projection of the second opening on the substrate being within the orthographic projection range of the first opening on the substrate; The orthographic projection of the second opening on the substrate has a second outer edge, and the first outer edge and the adjacent second outer edge are not parallel; Preferably, the shape of the second outer edge is a polygon, and the angle between the extension line of the side of the polygon and the first direction is greater than 26°; Preferably, the second outer edge includes a second segment, and the angle between an extension line of the second segment and the first direction is 45°.

11. A display panel, characterized in that: include: substrate; An isolation structure is disposed on one side of the substrate, and the isolation structure encloses a first opening; A pixel definition layer is disposed on one side of the substrate, wherein the pixel definition layer comprises a definition structure and a plurality of second openings defined by the definition structure; a light-emitting functional layer, at least a portion of which is disposed in the second opening; The orthographic projection of the first opening on the substrate has a first outer edge facing the second opening, the orthographic projection of the second opening on the substrate has a second outer edge, and the first outer edge and the adjacent second outer edge are not parallel.

12. The display panel according to claim 11, characterized in that: The display panel further includes a first electrode, which is located on a side of the light-emitting functional layer away from the substrate, and is connected to the isolation structure.

13. The display panel according to claim 11, characterized in that: The orthographic projection of the first opening on the substrate and the orthographic projection of the second opening on the substrate have the same shape; Preferably, the orthographic projection figure of the first opening on the substrate and the orthographic projection figure of the second opening on the substrate are both rectangular; Preferably, the first outer edge includes an opposite first edge and a second edge and an opposite third edge and a fourth edge, and the second outer edge includes an opposite fifth edge and a sixth edge and an opposite seventh edge and an eighth edge; the first edge and the fifth edge and the seventh edge are not parallel, and the third edge and the fifth edge and the seventh edge are not parallel; Preferably, the angles between the extension lines of the first edge, the fifth edge, and the seventh edge are all equal to 45°.

14. A method for preparing a display panel, characterized in that: The following steps are involved: providing a substrate; An isolation structure is formed on one side of the substrate, wherein the isolation structure encloses a first opening; forming a light-emitting functional layer, wherein at least a portion of the light-emitting functional layer is disposed in the first opening; A first electrode is formed on the side of the light-emitting functional layer facing away from the substrate, the first electrode is connected to the isolation structure, the orthographic projection of the first opening on the substrate has a first outer edge facing the light-emitting functional layer, the first outer edge includes a first segment, and the angle between the extension line of the first segment and the arrangement direction of each nozzle part on the line source evaporation component used for evaporating the first electrode is greater than or equal to 0° and less than or equal to 26°.

15. The method for preparing a display panel according to claim 14, characterized in that: Between the steps of providing a substrate and forming an isolation structure on one side of the substrate, the method further includes: forming a pixel definition layer on one side of the substrate, the pixel definition layer including a definition structure and a second opening defined by the definition structure, the orthographic projection of the second opening on the substrate having a second outer edge; In the step of forming an isolation structure on one side of the substrate, the first outer edge and the adjacent second outer edge are not parallel.

16. The method for preparing a display panel according to claim 15, characterized in that: In the step of forming a first electrode on the side of the light-emitting functional layer facing away from the substrate: The arrangement direction of the nozzles on the line source evaporation element is not parallel to the extension line of the second section of the second outer edge; Preferably, the shape of the second outer edge is a polygon, and the angles between the extended lines of the sides of the polygon and the arrangement directions of the nozzles on the line source evaporation element are greater than 26°; Preferably, the angle between the extension line of the second section and the arrangement direction of the nozzles on the line source evaporation element is 45°; Preferably, the arrangement direction of the nozzle parts on the line source evaporation component is perpendicular to the moving direction of the line source evaporation component.

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