Display panel and display device

Abstract

Provided in the present application are a display panel and a display device. The display panel comprises a substrate, a first electrode layer, an isolation structure and a light-emitting functional layer, wherein the first electrode layer is arranged on one side of the substrate, and the first electrode layer comprises a plurality of first electrodes arranged spaced apart from each other; the isolation structure is arranged on one side of the substrate, the isolation structure is provided with a plurality of isolation openings, and the orthographic projections of the first electrodes on the substrate overlap with the orthographic projections of the isolation openings on the substrate; and the light-emitting functional layer is arranged on the side of the first electrode layer facing away from the substrate, and the light-emitting functional layer comprises light-emitting structures arranged corresponding to the first electrodes. The isolation structure has a first orthographic projection on the substrate, and the first orthographic projection defines a plurality of first opening patterns. The first electrodes have second orthographic projections on the substrate, the first opening patterns overlap with the second orthographic projections, and the outer contour shape of at least a portion of the pattern of each second orthographic projection is the same as the outer contour shape of a first opening pattern.

Description

Display panel and display device

[0001] Cross-reference to related applications

[0002] This application claims priority to Chinese Patent Application No. 202411846884.2, filed on December 13, 2024, entitled “Display Panel and Display Device”, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of display device technology, and more particularly to a display panel and display device. Background Technology

[0004] Organic light-emitting diode (OLED) display panels and display panels using light-emitting diode (LED) devices are widely used in various consumer electronics products such as mobile phones, televisions, personal digital assistants, digital cameras, laptops, and desktop computers due to their advantages such as high image quality, energy saving, thin body and wide range of applications, becoming the mainstream of display devices. Summary of the Invention

[0005] This application provides a display panel and a display device that can improve the reliability of the display panel.

[0006] In a first aspect, embodiments of this application provide a display panel, including:

[0007] substrate;

[0008] A first electrode layer is disposed on one side of a substrate, and the first electrode layer includes a plurality of first electrodes disposed at intervals.

[0009] An isolation structure is disposed on one side of a substrate, and multiple isolation openings are provided on the isolation structure. The orthographic projection of the first electrode on the substrate overlaps with the orthographic projection of the isolation openings on the substrate.

[0010] A light-emitting functional layer is disposed on the side of the first electrode layer away from the substrate, and the light-emitting functional layer includes a light-emitting structure disposed corresponding to the first electrode;

[0011] The isolation structure has a first orthographic projection on the substrate, which defines a plurality of first opening patterns. The first electrode has a second orthographic projection on the substrate. The first opening patterns overlap with the second orthographic projection, and at least a portion of the outer contour shape of the second orthographic projection is the same as the outer contour shape of the first opening pattern.

[0012] Secondly, embodiments of this application provide a display panel, including:

[0013] substrate;

[0014] A first electrode layer is disposed on one side of a substrate, and the first electrode layer includes a plurality of first electrodes disposed at intervals.

[0015] An isolation structure is disposed on one side of a substrate, and multiple isolation openings are provided on the isolation structure. The orthographic projection of the first electrode on the substrate overlaps with the orthographic projection of the isolation openings on the substrate.

[0016] A light-emitting functional layer is disposed on the side of the first electrode layer away from the substrate, and the light-emitting functional layer includes a light-emitting structure disposed corresponding to the first electrode;

[0017] The isolation structure has a first orthographic projection on the substrate, which defines a plurality of first opening patterns. The first electrode has a second orthographic projection on the substrate, which includes a first straight edge. The first opening pattern includes a second straight edge, and the first straight edge is parallel to the second straight edge.

[0018] Thirdly, embodiments of this application provide a display panel, including:

[0019] substrate;

[0020] An isolation structure is disposed on one side of the substrate, and the isolation structure has multiple isolation openings;

[0021] A light-emitting functional layer is disposed on one side of a substrate, and the light-emitting functional layer includes a light-emitting structure at least partially located within an isolation opening;

[0022] The isolation structure has a first orthographic projection on the substrate, which defines a plurality of first opening patterns. The plurality of first opening patterns include a first sub-opening, a second sub-opening, and a third sub-opening. The first sub-opening, the second sub-opening, and the third sub-opening are respectively set to correspond to light-emitting structures of different colors.

[0023] The centers of at least two first sub-openings and the centers of at least two second sub-openings form a first virtual polygon. The center of the first sub-opening is located at the first vertex of the first virtual polygon, and the center of the second sub-opening is located at the second vertex of the first virtual polygon. The first and second vertices in the first virtual polygon are alternately set, and the third sub-opening is located inside the first virtual polygon.

[0024] This application provides a display panel and display device. The shape and size of the first electrode are adjusted to help reduce the overall size of the first electrode and reduce the overlap area between the first orthographic projection and the second orthographic projection. This design can reduce the parasitic capacitance between the two, improve the reliability of signal transmission of the isolation structure and the first electrode, and improve the display reliability of the display panel. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 is a partial structural schematic diagram of a display panel provided in an embodiment of this application;

[0027] Figure 2 is a partial structural schematic diagram of an isolation structure in a display panel provided in an embodiment of this application;

[0028] Figure 3 is a partial structural schematic diagram of the first electrode layer in a display panel provided in an embodiment of this application;

[0029] Figure 4 is a schematic diagram of the cross-sectional structure at point AA in Figure 1;

[0030] Figure 5 is a partial structural schematic diagram of the first isolation portion in a display panel provided in an embodiment of this application;

[0031] Figure 6 is a schematic diagram showing the relative positional relationship between the first electrode layer and the first isolation portion in a display panel according to an embodiment of this application;

[0032] Figure 7 is a schematic diagram showing the relative positional relationship between the second isolation portion and the light-emitting functional layer in a display panel according to an embodiment of this application;

[0033] Figure 8 is a partial structural schematic diagram of an isolation structure in a display panel according to an embodiment of this application;

[0034] Figure 9 is a partial structural schematic diagram of an isolation structure in a display panel according to an embodiment of this application;

[0035] Figure 10 is a schematic diagram of the positional relationship between the isolation structure and the first electrode layer in a display panel according to an embodiment of this application;

[0036] Figure 11 is a schematic diagram of the positional relationship between the first conductor layer and the first electrode layer in a display panel according to an embodiment of this application;

[0037] Figure 12 is a schematic diagram of the positional relationship between the first conductor layer and the first electrode layer in a display panel according to an embodiment of this application;

[0038] Figure 13 is a schematic diagram of the positional relationship between the first conductor layer and the first electrode layer in a display panel according to an embodiment of this application;

[0039] Figure 14 is a cross-sectional structural diagram of another display panel provided in an embodiment of this application. Detailed Implementation

[0040] In a first aspect, referring to Figures 1 to 4, embodiments of this application provide a display panel 100. The display panel 100 includes a substrate 10, a first electrode layer 20, an isolation structure 40, and a light-emitting functional layer 30. The first electrode layer 20 is disposed on one side of the substrate 10 and includes a plurality of first electrodes 21 spaced apart. The isolation structure 40 is disposed on one side of the substrate 10 and has a plurality of isolation openings 41. The orthographic projections of the first electrodes 21 onto the substrate 10 overlap with the orthographic projections of the isolation openings 41 onto the substrate 10. The light-emitting functional layer 30 is disposed on the side of the first electrode layer 20 facing away from the substrate 10 and includes light-emitting structures 31 corresponding to the first electrodes 21.

[0041] The isolation structure 40 has a first orthographic projection T1 on the substrate 10, which defines a plurality of first opening patterns K1. The first electrode 21 has a second orthographic projection T2 on the substrate 10. The first opening patterns K1 and the second orthographic projection T2 overlap, and at least a portion of the outer contour shape of the second orthographic projection T2 is the same as the outer contour shape of the first opening pattern K1. It should be noted that two outer contour shapes being substantially the same can also be considered as having the same outer contour shape.

[0042] The substrate 10 is a structure in the display panel 100 used to support other film layers. The substrate 10 includes multiple film layer structures. The specific composition of the film layer structures within the substrate 10 is not limited in the embodiments of this application. The multiple film layer structures within the substrate 10, as well as the multiple film layer structures located outside the substrate 10, are all stacked along the thickness direction Z of the substrate 10. The thickness directions Z of different film layer structures, the thickness direction Z of the display panel 100, and the thickness direction Z of the substrate 10 are usually parallel. Therefore, for ease of understanding, the thickness directions Z of different film layer structures, the thickness direction Z of the display panel 100, and the thickness direction Z of the substrate 10 are all shown in the same direction in the accompanying drawings.

[0043] The first electrode layer 20 and the light-emitting functional layer 30 are disposed on the same side of the substrate 10 along the thickness direction Z, and the light-emitting functional layer 30 is located on the side of the first electrode layer 20 facing away from the substrate 10 along the thickness direction Z. The light-emitting functional layer 30 is a functional film layer in the display panel 100 used to achieve the display effect, and the first electrode layer 20 is an electrode film layer used to control whether the light-emitting functional layer 30 emits light. Optionally, the display panel 100 further includes a second electrode layer 50 located on the side of the light-emitting functional layer 30 facing away from the substrate 10, and the first electrode layer 20 and the second electrode layer 50 cooperate with each other to control whether the light-emitting functional layer 30 emits light. For example, the first electrode layer 20 is an anode layer, and the second electrode layer 50 is a cathode layer.

[0044] The first electrode layer 20 includes a plurality of first electrodes 21 spaced apart. The light-emitting functional layer 30 includes light-emitting structures 31 corresponding to the first electrodes 21. Here, "light-emitting structures 31 corresponding to first electrodes 21" means that the orthographic projection of each light-emitting structure 31 on the substrate 10 overlaps with the orthographic projection of a first electrode 21 on the substrate 10. Depending on actual needs, a single first electrode 21 may correspond to only a single light-emitting structure 31, meaning a single first electrode 21 is only used to control a single light-emitting structure 31; or a single first electrode 21 may correspond to multiple light-emitting structures 31, meaning a single first electrode 21 can also be used to control multiple light-emitting structures 31. For ease of understanding, the embodiments of this application will be described below using the example of a single first electrode 21 corresponding to only a single light-emitting structure 31.

[0045] The light-emitting structure 31 includes, but is not limited to, a red light-emitting structure 31 for emitting red light, a green light-emitting structure 31 for emitting green light, and a blue light-emitting structure 31 for emitting blue light. Each light-emitting structure 31 may include stacked film layers such as a hole injection layer (HIL), a hole transport layer (HTL), a light-emitting layer, an electron injection layer (EIL), and an electron transport layer (ETL). In some other embodiments, the light-emitting structure 31 may include multiple stacked light-emitting layers, and a charge generation layer is provided between adjacent light-emitting layers.

[0046] The isolation structure 40 is a structure in the display panel 100 used to separate different light-emitting structures 31 at intervals. The isolation structure 40 encloses and forms a plurality of isolation openings 41. The plurality of isolation openings 41 are respectively arranged corresponding to the plurality of light-emitting structures 31 and the plurality of first electrodes 21. That is, the orthographic projection of a single isolation opening 41 on the substrate 10 can overlap with the orthographic projection of a single light-emitting structure 31 on the substrate 10, and can also overlap with the orthographic projection of a single first electrode 21 on the substrate 10.

[0047] The isolation structure 40 allows the light-emitting functional layer 30 to form multiple spaced light-emitting structures 31 without the need for a fine metal mask, thereby reducing the manufacturing cost of the display panel 100. Specifically, taking the red light-emitting structure 31 before the green light-emitting structure 31 is fabricated as an example, since the fine metal mask is eliminated, the red light-emitting material corresponding to the red light-emitting structure 31 first falls into each isolation opening 41. Then, a portion of the red light-emitting material in the isolation opening 41 is selectively etched away, while a portion is retained to form the red light-emitting structure 31. Afterward, the green light-emitting material corresponding to the green light-emitting structure 31 falls into each isolation opening 41. Then, a portion of the green light-emitting material in the isolation opening 41 is selectively etched away, while a portion is retained to form the green light-emitting structure 31.

[0048] The first orthographic projection T1 is the orthographic projection of the isolation structure 40 onto the substrate 10. Due to the presence of the isolation opening 41, the first orthographic projection T1 can define and form multiple first opening patterns K1. Considering that the cross-sectional area of ​​the isolation structure 40 at different positions in the thickness direction Z may not be completely consistent, the first orthographic projection T1 is the orthographic projection of the isolation structure 40 at the position with the largest cross-sectional area, and the first opening pattern K1 is the opening pattern defined and formed by the first orthographic projection T1.

[0049] Similarly, like the isolation structure 40, the radial dimensions of the isolation opening 41 at different positions in the thickness direction Z are not completely consistent. Therefore, the orthographic projection of the isolation opening 41 on the substrate 10 is the orthographic projection of the isolation opening 41 at the position with the largest radial dimension, and the position with the largest radial dimension of the isolation opening 41 is usually aligned with the position with the smallest cross-sectional area of ​​the isolation structure 40. Thus, it can be seen that the first opening pattern K1 is not the orthographic projection of the isolation opening 41 on the substrate 10. Referring to Figure 4, the orthographic projection of the virtual line I1 on the substrate in Figure 4 can coincide with the outer contour of the first opening pattern K1, while the orthographic projection of the virtual line I2 on the substrate can coincide with the outer contour of the orthographic projection of the isolation opening 41 on the substrate 10. Further optionally, the outer contour shape of the orthographic projection of the isolation opening 41 on the substrate 10 can be the same as the outer contour shape of the first opening pattern K1.

[0050] It should be noted that the "radial dimension" mentioned here refers to the dimension of the isolation opening 41 at a specific position in the direction parallel to the plane where the substrate 10 is located. It does not constitute a limitation on the shape of the isolation opening 41. The orthographic projection of the isolation opening 41 on the substrate 10 and the first opening pattern K1 can be circular, polygonal or other regular or irregular shapes. This application embodiment does not limit this.

[0051] The second orthographic projection T2 is the orthographic projection of the first electrode 21 onto the substrate 10. The second orthographic projection T2 overlaps with the first opening pattern K1, and the orthographic projection of the light-emitting structure 31 onto the substrate 10 also overlaps with the first opening pattern K1. The specific positional relationship between the first orthographic projection T1 and the second orthographic projection T2 is not limited in this embodiment. For example, the first orthographic projection T1 and the second orthographic projection T2 can overlap, with the end of the first electrode 21 located below the isolation structure 40 and insulated from it. Alternatively, the second orthographic projection T2 can be located outside the first orthographic projection T1.

[0052] In related technologies, the display panel 100 often does not have an isolation structure 40, and a large-sized anode structure is required to cover and shield the conductor or semiconductor structure inside the substrate 10, thereby reducing the adverse effects caused by light shining on the conductor or semiconductor structure.

[0053] However, in this embodiment, considering the presence of the isolation structure 40, if the size and shape of the first electrode 21 are still set to be similar to those in related technologies, it will affect the display performance of the display panel. For example, it will cause the first orthographic projection T1 and the second orthographic projection T2 to overlap and generate a large overlap area. Since at least a portion of the structure within the isolation structure 40 can be configured to include conductive materials, that is, at least a portion of the structure within the isolation structure 40 can be a conductor structure or a semiconductor structure, this design is prone to generating a large parasitic capacitance between the isolation structure 40 and the first electrode 21, and generating the risk of signal crosstalk, affecting the reliability of signal transmission of the isolation structure 40 and the first electrode 21 respectively, and thus easily having an adverse effect on the display screen.

[0054] In view of this, the morphology and size of the first electrode 21 have been adjusted in this embodiment. By changing the morphology of the first electrode 21, at least part of the outer contour shape of the second orthographic projection T2 is set to be the same as the outer contour shape of the first opening pattern K1, which helps to reduce the overall size of the first electrode 21 and reduce the overlap area between the first orthographic projection T1 and the second orthographic projection T2. ​​This design can reduce the parasitic capacitance between the two, improve the reliability of signal transmission of the isolation structure 40 and the first electrode 21, and improve the display reliability of the display panel 100.

[0055] Furthermore, the isolation structure 40 also covers and shields some of the conductor or semiconductor structures located within the substrate 10, thereby reducing the adverse effects of factors such as light on the display effect. Therefore, even though the size of the first electrode 21 has been reduced in this embodiment, it does not affect the performance reliability of the conductor or semiconductor structures within the substrate 10, thus helping to further improve the reliability of the display panel 100.

[0056] In some alternative embodiments, the display panel 100 includes a thin-film transistor J, and the orthographic projection of the isolation structure 40 on the substrate 10 overlaps with the thin-film transistor J. In this way, the isolation structure 40 can shield the thin-film transistor J from light, thereby reducing the impact of light.

[0057] It should be noted that the "sameness" mentioned here refers to the outer contour shape being roughly the same, not necessarily completely identical. The same principle applies to the "sameness" mentioned later in this application, and will not be repeated here. Furthermore, for the second orthographic projection T2, the outer contour shape of the graphic corresponding to the second orthographic projection T2 can be the same as or substantially the same as the outer contour shape of the first opening pattern K1. Alternatively, depending on actual needs, the outer contour shape of a portion of the graphic in the second orthographic projection T2 can also differ from the outer contour shape of the first opening pattern K1. This application does not impose any restrictions on this, as long as at least a portion of the outer contour shape of the graphic in the second orthographic projection T2 is the same as the outer contour shape of the first opening pattern K1.

[0058] In some embodiments, as shown in FIG4, the isolation structure 40 includes a first isolation portion 42 and a second isolation portion 43 located on the side of the first isolation portion 42 away from the substrate 10, wherein the orthographic projection of the first isolation portion 42 on the substrate 10 is located within the orthographic projection of the second isolation portion 43 on the substrate 10.

[0059] The specific dimensions and shapes of the first isolation portion 42 and the second isolation portion 43 are not limited in this embodiment. For example, the longitudinal section of the isolation structure 40 can be T-shaped, or it can be an inverted trapezoid. This design helps to prevent the luminescent material from extending along the sidewall of the first isolation portion 42 to the sidewall of the second isolation portion 43 during the fabrication of the luminescent functional layer 30. This allows for the fabrication and separation of the luminescent structures 31 corresponding to different isolation openings 41 without the need for a fine metal mask.

[0060] The embodiments of this application do not limit the material composition of the first isolation portion 42 and the second isolation portion 43. Both the first isolation portion 42 and the second isolation portion 43 may include conductive materials, or the first isolation portion 42 may include conductive materials and the second isolation portion 43 may include insulating materials, or both may include insulating materials.

[0061] In some embodiments, referring to Figures 1 to 5, the first isolation portion 42 has a third orthographic projection T3 on the substrate 10. The third orthographic projection T3 defines a plurality of second opening patterns K2. At least a portion of the outer contour shape of the second orthographic projection T2 is the same as the outer contour shape of the second opening pattern K2.

[0062] The third orthographic projection T3 is the orthographic projection of the first isolation portion 42 onto the substrate 10. The third orthographic projection T3 can define the formation of multiple second opening patterns K2. Considering that the cross-sectional area of ​​the first isolation portion 42 at different positions in the thickness direction Z may not be completely consistent, the third orthographic projection T3 is the orthographic projection of the first isolation portion 42 at the position with the largest cross-sectional area, and the second opening pattern K2 is the opening pattern formed by being surrounded and defined by the third orthographic projection T3.

[0063] The second orthographic projection T2 is the orthographic projection of the first electrode 21 onto the substrate 10. The second orthographic projection T2 overlaps with the second opening pattern K2. Similarly, the orthographic projection of the light-emitting structure 31 onto the substrate 10 also overlaps with the second opening pattern K2. The specific positional relationship between the second orthographic projection T2 and the third orthographic projection T3 is not limited in this embodiment. For example, the second orthographic projection T2 and the third orthographic projection T3 can overlap, or the second orthographic projection T2 can be located outside the third orthographic projection T3.

[0064] For the first opening pattern K1 and the second opening pattern K2, since the orthographic projection of the first isolation portion 42 on the substrate 10 is located within the orthographic projection of the second isolation portion 43 on the substrate 10, the orthographic projection of the first isolation portion 42 on the substrate 10 will not coincide with the orthographic projection of the isolation structure 40 on the substrate 10. That is, the first orthographic projection T1 will not coincide with the third orthographic projection T3, and thus the first opening pattern K1 and the second opening pattern K2 will not completely coincide. Optionally, the first opening pattern K1 is located within the second opening pattern K2, and the edge of the first opening pattern K1 is spaced apart from the edge of the second opening pattern K2. In FIG5, the outer contour of the first opening pattern K1 is shown by dashed lines.

[0065] Furthermore, in this embodiment of the application, similar to the first opening pattern K1, at least part of the outer contour shape of the second orthographic projection T2 is also the same as the outer contour shape of the second opening pattern K2. In this way, through the conformal design between the two, the shape matching degree between the first electrode 21 and the light-emitting structure 31 can be further improved, thereby improving the display reliability of the display panel 100.

[0066] In some alternative embodiments, as shown in FIG4, the display panel 100 further includes a second electrode layer 50 disposed on the side of the light-emitting functional layer 30 away from the substrate 10. The second electrode layer 50 includes a second electrode 51 disposed corresponding to the isolation opening 41. The first isolation portion 42 includes a conductive material. The second electrode 51 is in contact with and electrically connected to the sidewall of the first isolation portion 42.

[0067] The phrase "the second electrode 51 is configured to correspond to the isolation opening 41" mentioned here refers to the fact that the orthographic projection of the second electrode 51 on the substrate 10 overlaps with the orthographic projection of the isolation opening 41 on the substrate 10. Furthermore, the orthographic projection of the second electrode 51 on the substrate 10 overlaps with the first opening pattern K1.

[0068] The first isolation section 42 includes a conductive material and is used to transmit a corresponding power signal to the second electrode 51. In order to reduce the parasitic capacitance between the first isolation section 42 and the first electrode 21, the embodiments of this application set at least a portion of the outer contour shape of the second orthographic projection T2 to be the same as the outer contour shape of the second opening pattern K2. By means of the conformal design between the two, the overlapping area between the second orthographic projection T2 and the third orthographic projection T3 is reduced, thereby reducing the parasitic capacitance between the two and improving the display effect.

[0069] In some embodiments, as shown in FIG4, the size of the first isolation portion 42 gradually decreases in the first direction X in a direction perpendicular to the display panel 100 and away from the substrate 10, and the first direction X is parallel to the plane where the substrate 10 is located.

[0070] The direction perpendicular to the display panel 100 is the thickness direction Z. The first direction X is a direction that intersects the thickness direction Z; optionally, the first direction X is perpendicular to the thickness direction Z. In the direction parallel to the thickness direction Z and away from the substrate 10, the size of the first isolation portion 42 gradually decreases in the first direction X. In other words, the cross-sectional size of the first isolation portion 42 is gradually reduced in the direction gradually away from the substrate 10. Therefore, the third orthographic projection T3 is the orthographic projection of the surface of the first isolation portion 42 facing the substrate 10 onto the substrate 10.

[0071] In some embodiments, please refer to FIG6, the third orthographic projection T3 and the second orthographic projection T2 are arranged to overlap.

[0072] Considering that the partial film structure located on the side of the first electrode layer 20 away from the substrate 10, such as the first encapsulation layer, needs to contact the sidewall of the first isolation portion 42 and extend on the sidewall of the first isolation portion 42, in order to improve the reliability of the extension of the film structure on the first isolation portion 42, the embodiments of this application arrange the third orthographic projection T3 and the second orthographic projection T2 to overlap, so that the orthographic projection of the sidewall of the first isolation portion 42 on the substrate 10 can be located within the second orthographic projection T2, thereby improving the flatness of the sidewall of the first isolation portion 42 and thus improving the manufacturing yield of the display panel 100.

[0073] In some embodiments, as shown in Figures 4 and 6, the overlap width between multiple different regions of the second orthographic projection T2 of the same first electrode 21 and the third orthographic projection T3 is the same.

[0074] Considering that the third orthographic projection T3 overlaps with the second orthographic projection T2 at different positions around its periphery, the overlap width direction is not the same in different areas of the second orthographic projection T2. ​​Specifically, referring to Figure 6, the overlap width of the overlapping area formed by the second orthographic projection T2 at its edge position in the first direction X and the third orthographic projection T3 refers to the size of the overlapping area in the first direction X. The overlap width of the overlapping area formed by the second orthographic projection T2 at its edge position in the second direction Y and the third orthographic projection T3 refers to the size of the overlapping area in the second direction Y.

[0075] Furthermore, in this embodiment, in addition to adjusting the morphology of the first electrode 21, the size of the first electrode 21 is also limited, so that the overlap width of multiple different regions of the second orthographic projection T2 of the same first electrode 21 with the third orthographic projection T3 is the same. This helps to further reduce the overlap area between the second orthographic projection T2 and the third orthographic projection T3, reduce the parasitic capacitance between the first electrode 21 and the isolation structure 40, and improve the reliability of the display panel.

[0076] In some embodiments, as shown in Figures 4 and 6, the light-emitting functional layer 30 includes a plurality of first light-emitting structures 31a for emitting first color light, and the overlap width D1 of the second orthographic projection T2 and the third orthographic projection T3 of the first electrode 21 corresponding to different first light-emitting structures 31a is the same.

[0077] The first light-emitting structure 31a is a light-emitting structure 31 among a plurality of light-emitting structures 31 that is used to emit light of a specific color. The embodiments of this application do not limit the corresponding light-emitting color of the first light-emitting structure 31a. For example, the first light-emitting structure 31a can be used to emit one of red light, blue light and green light.

[0078] Based on the foregoing, at least a portion of the outer contour shape of the second orthographic projection T2 is the same as the outer contour shape of the first opening pattern K1, and the size of the second orthographic projection T2 is also positively correlated with the size of the first opening pattern K1. Furthermore, the outer contour shape of the sixth orthographic projection of the light-emitting structure 31 is also generally the same as the outer contour shape of the first opening pattern K1, and the sizes of the two are positively correlated.

[0079] Based on this, for multiple first light-emitting structures 31a of the same color, the outer contour shape and size of the second orthographic projection T2 of their corresponding different first electrodes 21 can generally remain consistent, and the shape and size of the first isolation portion 42 surrounding the multiple first light-emitting structures 31a can generally remain the same or similar. Therefore, the overlap width of the second orthographic projection T2 and the third orthographic projection T3 of the first electrodes 21 corresponding to different first light-emitting structures 31a can remain the same. This design ensures that the overlap area between the multiple first electrodes 21 and the first isolation portion 42 corresponding to different first light-emitting structures 31a is the same, thus ensuring that the isolation structure 40 has the same effect on the different first light-emitting structures 31a, resulting in consistent display effects for the first light-emitting structures 31a at different positions.

[0080] In some embodiments, please refer to FIG4, the light-emitting functional layer 30 includes a first light-emitting structure 31a for emitting a first color light and a second light-emitting structure 31b for emitting a second color light. The overlap width D1 of the second orthographic projection T2 and the third orthographic projection T3 corresponding to the first light-emitting structure 31a is different from the overlap width D2 of the second orthographic projection T2 and the third orthographic projection T3 corresponding to the second light-emitting structure 31b.

[0081] The first light-emitting structure 31a and the second light-emitting structure 31b are light-emitting structures 31 used to emit light of different colors. Exemplarily, the first light-emitting structure 31a and the second light-emitting structure 31b are used to emit different colors of light, namely red light, green light, and blue light. Since the first light-emitting structure 31a and the second light-emitting structure 31b emit different colors, they are prepared sequentially in different processes during the fabrication process. For ease of understanding, the embodiments of this application will subsequently be described using the example of the second light-emitting structure 31b being formed before the first light-emitting structure 31a.

[0082] During the fabrication process, firstly, a layered light-emitting material, electrode material, and encapsulation material are formed within all the isolation openings 41. The light-emitting material is used to form the second light-emitting structure 31b, the electrode material is used to form the second electrode 51 corresponding to the second light-emitting structure 31b, and the encapsulation material is used to form the encapsulation portion corresponding to the second light-emitting structure 31b. Then, a portion of the light-emitting material, electrode material, and encapsulation material within the isolation openings 41 is etched away, while the remaining portion of the isolation openings 41 retains the light-emitting material, electrode material, and encapsulation material to form the second light-emitting structure 31b and the second electrode 51 and encapsulation portion corresponding to the first light-emitting structure 31a. The above steps are then repeated to form the first light-emitting structure 31a and the second electrode 51 and encapsulation portion 811 corresponding to the first light-emitting structure 31a.

[0083] In the aforementioned etching process, since some of the isolation openings 41 are affected by etching, while the remaining isolation openings 41 are not, the etching medium will etch the sidewalls of the first isolation portion 42 surrounding some of the isolation openings 41, while the sidewalls of the first isolation portion 42 surrounding the remaining isolation openings 41 will not be affected by etching or will be less affected. In this case, the degree of etching on the sidewalls of the first isolation portion 42 surrounding the first light-emitting structure 31a and the second light-emitting structure 31b will differ, resulting in a difference between the overlap width of the second orthographic projection T2 and the third orthographic projection T3 corresponding to the first light-emitting structure 31a and the overlap width of the second orthographic projection T2 and the third orthographic projection T3 corresponding to the second light-emitting structure 31b.

[0084] In some optional embodiments, as shown in FIG4, if the second light-emitting structure 31b is formed before the first light-emitting structure 31a, then the overlap width D1 of the second orthographic projection T2 and the third orthographic projection T3 corresponding to the first light-emitting structure 31a is less than the overlap width D2 of the second orthographic projection T2 and the third orthographic projection T3 corresponding to the second light-emitting structure 31b.

[0085] In some embodiments, the second isolation portion 43 has a fourth orthographic projection on the substrate 10, the fourth orthographic projection defining a plurality of third opening patterns, and at least a portion of the outer contour shape of the second orthographic projection T2 is the same as the outer contour shape of the third opening patterns.

[0086] The fourth orthographic projection is the orthographic projection of the second isolation portion 43 onto the substrate 10. Since the orthographic projection of the first isolation portion 42 onto the substrate 10 lies within the orthographic projection of the second isolation portion 43 onto the substrate 10, the first orthographic projection T1 of the isolation structure 40 can coincide with the fourth orthographic projection of the second isolation portion 43. Furthermore, since the third opening pattern is an opening pattern defined by the fourth orthographic projection, the first opening pattern K1 can also coincide with the third opening pattern. In other words, the shape and size of the fourth orthographic projection and the third opening pattern are the same as the structure shown in FIG2.

[0087] Furthermore, the morphology and size of the first electrode 21 have been adjusted in this embodiment. By changing the morphology of the first electrode 21, at least part of the outer contour shape of the second orthographic projection T2 is set to be the same as the outer contour shape of the third opening pattern. This helps to reduce the overall size of the first electrode 21 and reduce the overlap area between the fourth orthographic projection and the second orthographic projection T2. ​​This design can reduce the parasitic capacitance between the isolation structure 40 and the first electrode 21, improve the reliability of signal transmission of the isolation structure 40 and the first electrode 21, and improve the display reliability of the display panel 100.

[0088] In some embodiments, the fourth orthographic projection overlaps with the second orthographic projection T2. ​​This design allows the second orthographic projection T2 to have a certain area size, thereby improving the signal transmission capability of the first electrode 21 and enhancing the control reliability of the first electrode 21 over the light-emitting structure 31.

[0089] In some embodiments, the overlap width between multiple different regions of the second orthographic projection T2 of the same first electrode 21 and the fourth orthographic projection T4 is the same.

[0090] Considering that the fourth orthographic projection T4 overlaps with the second orthographic projection T2 at different positions around its periphery, the overlap width direction is not the same in different areas of the second orthographic projection T2. ​​Specifically, referring to Figure 7, the overlap width of the overlapping area formed by the second orthographic projection T2 at its edge position in the first direction X and the fourth orthographic projection T4 refers to the size of the overlapping area in the first direction X. The overlap width of the overlapping area formed by the second orthographic projection T2 at its edge position in the second direction Y and the fourth orthographic projection T4 refers to the size of the overlapping area in the second direction Y.

[0091] Furthermore, in this embodiment, in addition to adjusting the shape of the first electrode 21, the size of the first electrode 21 is also limited so that the overlap width of multiple different regions of the second orthographic projection T2 of the same first electrode 21 with the fourth orthographic projection T4 is the same. This helps to further reduce the overlap difference between the single second orthographic projection T2 and the fourth orthographic projection T4 at different edge regions and improve the reliability of the display panel 100.

[0092] In some embodiments, as shown in FIG7, the light-emitting structure 31 has a sixth orthographic projection T6 on the substrate 10, and the light-emitting functional layer 30 includes a plurality of first light-emitting structures 31a for emitting first color light, wherein the overlap width D3 of the sixth orthographic projection T6 of different first light-emitting structures 31a with the fourth orthographic projection T4 is the same.

[0093] Multiple first light-emitting structures 31a are provided. For multiple first light-emitting structures 31a, the shape and size of different first light-emitting structures 31a are usually consistent, and the shape and size of the first isolation portion 42 located around the multiple first light-emitting structures 31a are usually the same or similar. Based on this, since the sixth orthographic projection T6 is the orthographic projection of the light-emitting structure 31 on the substrate 10, the overlap width of the sixth orthographic projection T6 and the fourth orthographic projection T4 of different first light-emitting structures 31a can be kept the same. This allows the second isolation portion 43 to have the same blocking effect on different first light-emitting structures 31a, thereby reducing the display differences corresponding to different first light-emitting structures 31a and improving the display uniformity of the display panel 100.

[0094] In some embodiments, as shown in FIG1, the light-emitting functional layer 30 includes a plurality of first light-emitting structures 31a for emitting a first color light, and different first light-emitting structures 31a correspond to the same overlap width D4 of the second orthographic projection T2 and the fourth orthographic projection of the first electrode 21.

[0095] It should be noted that since the first orthographic projection T1 of the isolation structure 40 and the fourth orthographic projection T4 of the second isolation part 43 are overlapping each other, D4 shown in FIG1 can represent the overlap width D4 of the second orthographic projection T2 and the fourth orthographic projection of the first light-emitting structure 31a corresponding to the first electrode 21.

[0096] Based on the foregoing, at least a portion of the outer contour shape of the second orthographic projection T2 is the same as the outer contour shape of the first opening pattern K1, and the size of the second orthographic projection T2 is also positively correlated with the size of the first opening pattern K1. Furthermore, the outer contour shape of the sixth orthographic projection T6 of the light-emitting structure 31 is also generally the same as the outer contour shape of the first opening pattern K1, and the sizes of the two are positively correlated.

[0097] Based on this, for multiple first light-emitting structures 31a with the same color, the outer contour shape and size of the second orthographic projection T2 of the corresponding different first electrodes 21 can usually remain consistent, and the shape and size of the second isolation portion 43 located around the multiple first light-emitting structures 31a can usually remain the same or similar.

[0098] Therefore, the overlap width of the second orthographic projection T2 and the fourth orthographic projection of the first electrode 21 corresponding to different first light-emitting structures 31a can remain the same. Furthermore, since the first orthographic projection T1 of the isolation structure 40 can coincide with the fourth orthographic projection of the second isolation part 43, the overlap width of the second orthographic projection T2 and the first orthographic projection T1 of the first electrode 21 corresponding to different first light-emitting structures 31a can also remain the same, thereby improving the reliability of the relative position between the first electrode 21 and the isolation structure 40.

[0099] In some embodiments, as shown in FIG1, the light-emitting functional layer 30 includes a first light-emitting structure 31a for emitting a first color light and a second light-emitting structure 31b for emitting a second color light. The first light-emitting structure 31a corresponds to the overlap width D4 of the second orthographic projection T2 and the fourth orthographic projection of the first electrode 21, which is the same as the overlap width D5 of the second light-emitting structure 31b corresponding to the second orthographic projection T2 and the fourth orthographic projection of the first electrode 21.

[0100] As can be seen from the foregoing, since the first light-emitting structure 31a and the second light-emitting structure 31b are fabricated sequentially in different processes, the etching degree of the sidewalls of the first isolation portion 42 located around the first light-emitting structure 31a and the second light-emitting structure 31b will differ during the fabrication process. This results in a difference between the overlap width of the second orthographic projection T2 and the third orthographic projection T3 corresponding to the first light-emitting structure 31a and the overlap width of the second orthographic projection T2 and the third orthographic projection T3 corresponding to the second light-emitting structure 31b.

[0101] However, due to the different material composition of the second isolation portion 43 and the first isolation portion 42, the second isolation portion 43 is usually not affected by etching or is only slightly affected by etching. In view of this, the degree of etching of the second isolation portion 43 located on the periphery of the first light-emitting structure 31a and the second light-emitting structure 31b is usually not different or the difference is small. Based on this, the overlap width D4 of the second orthographic projection T2 and the fourth orthographic projection of the first electrode 21 corresponding to the first light-emitting structure 31a can be the same as the overlap width D5 of the second orthographic projection T2 and the fourth orthographic projection of the first electrode 21 corresponding to the second light-emitting structure 31b.

[0102] In some embodiments, as shown in FIG3 and FIG4, the first electrode 21 includes a body portion 211 and a connecting portion 212 connected together, the substrate 10 includes a pixel circuit, and the body portion 211 is electrically connected to the pixel circuit through the connecting portion 212.

[0103] A pixel circuit is a circuit structure used to control the signal voltage within the first electrode 21. Pixel circuits can take various forms, and this application embodiment does not impose any limitations. For example, the structure of a pixel circuit can be 7T1C, meaning a single pixel circuit includes seven thin-film transistors and one storage capacitor; or the structure of a pixel circuit can be 8T2C, meaning a single pixel circuit includes eight thin-film transistors and two storage capacitors.

[0104] The first electrode 21 includes a body portion 211 and a connecting portion 212. The body portion 211 is the main component of the first electrode 21, and the orthographic projection of the light-emitting structure 31 onto the substrate 10 can overlap with the orthographic projection of the body portion 211 onto the substrate 10. The connecting portion 212 is a part of the first electrode 21 used to connect the body portion 211 to the pixel electrode. Optionally, the connecting portion 212 and the body portion 211 are an integral structure, that is, they both include the same material and are formed together in the same process.

[0105] In this embodiment, the first electrode 21 is positioned to correspond with the light-emitting structure 31 via the body portion 211, and the body portion 211 is connected to the pixel circuit via the connecting portion 212. In this way, the connection position between the pixel circuit and the first electrode 21 is not limited to the area where the light-emitting structure 31 is located, thereby reducing the difficulty of connecting the pixel circuit and the first electrode 21, and helping to reduce the difficulty of the layout of the relative position between the light-emitting structure 31 and the pixel circuit.

[0106] In some embodiments, the body portion 211 has a fifth orthographic projection T5 on the substrate 10, and the outer contour shape of the fifth orthographic projection T5 is the same as the outer contour shape of the first opening pattern K1. In FIG3, the position of the fifth orthographic projection T5 is indicated by a dashed box.

[0107] In this embodiment, since the isolation structure 40 can shield the conductor or semiconductor structure within the substrate 10, the size of the first electrode 21 can be appropriately reduced. Based on this, the fifth orthographic projection T5 is the orthographic projection of the body portion 211 onto the substrate 10. By setting the outer contour shape of the fifth orthographic projection T5 to be the same as the outer contour shape of the first opening pattern K1, the fifth orthographic projection T5 and the first opening pattern K1 can be conformally matched. This conformal design reduces the area of ​​the fifth orthographic projection T5, decreases its overlap with the first orthographic projection T1, and further reduces the parasitic capacitance between the isolation structure 40 and the body portion 211, thereby improving the reliability of their respective signal transmission.

[0108] It should be noted that the fifth orthographic projection T5 is a part of the second orthographic projection T2, and a portion of the outer contour of the fifth orthographic projection T5 also belongs to the outer contour of the second orthographic projection T2, while the remaining portion of the outer contour of the fifth orthographic projection T5 is connected to the orthographic projection of the connecting portion 212 on the substrate 10. Furthermore, the positional relationship between the connecting portion 212 and the isolation structure 40 is not limited in this embodiment. Optionally, the orthographic projection of the connecting portion 212 on the substrate 10 overlaps with the first orthographic projection T1.

[0109] In some embodiments, as shown in Figures 1 to 3, the overlap width between the fifth orthographic projection T5 and the first orthographic projection T1 is L1, where 0.6 μm ≤ L1 ≤ 2.5 μm. Optionally, L1 is one of 0.6 μm, 1 μm, 1.5 μm, 2 μm, and 2.5 μm.

[0110] In this embodiment, by setting L1 to no more than 2.5 μm, the overlap area between the isolation structure 40 and the first electrode 21 on the substrate 10 is reduced, the parasitic capacitance between them is decreased, and the reliability of their respective signal transmission is improved. Simultaneously, L1 is set to no less than 0.6 μm to meet the alignment accuracy between them, improve the positional reliability between the first electrode 21 and the corresponding light-emitting structure 31, and increase the yield of the display panel 100.

[0111] In some embodiments, as shown in Figures 4 and 6, the isolation structure 40 includes a first isolation portion 42 and a second isolation portion 43 located on the side of the first isolation portion 42 facing away from the substrate 10. The orthographic projection of the first isolation portion 42 on the substrate 10 lies within the orthographic projection of the second isolation portion 43 on the substrate 10. The overlap width between the fifth orthographic projection T5 and the orthographic projection of the first isolation portion 42 on the substrate 10 is L2, where 0 < L2 ≤ 1 μm. Optionally, L2 is one of 0.1 μm, 2 μm, 0.5 μm, 0.8 μm, and 1 μm. In Figure 5, the overlap width L2 is the distance D2 shown in the figure.

[0112] In this embodiment, considering that the first isolation portion 42 is typically the main part of the isolation structure 40 that can generate parasitic capacitance with the first electrode 21, L2 is set to no more than 0.6 μm. This reduces the overlap area between the first isolation portion 42 and the first electrode 21 on the substrate 10, lowers the parasitic capacitance between them, and improves the reliability of their respective signal transmission. Simultaneously, setting L2 to greater than 0 allows for an overlap area between the first isolation portion 42 and the first electrode 21 on the substrate 10. This ensures that, while meeting alignment accuracy requirements, the first isolation portion 42 is supported by the first electrode 21 at its sidewall position, thereby improving the flatness of the sidewall of the first isolation portion 42, increasing the fabrication reliability of the film layer structure extending from the sidewall of the first isolation portion 42, and improving the yield rate of the display panel 100.

[0113] In some embodiments, as shown in Figures 1 to 4, the fifth orthographic projection T5 includes a first straight edge B1, and the first opening pattern K1 includes a second straight edge B2, with the first straight edge B1 parallel to the second straight edge B2. Here, "parallel" in the embodiments of this application refers to the overall extension of the two structures being approximately parallel, rather than limiting them to complete parallelism. The same principle applies to subsequent references to "parallelism" in this application, and will not be repeated here.

[0114] In related technologies, the cathode in the cathode layer is usually only one and has a full-surface structure. However, in the embodiments of this application, due to the presence of the isolation structure 40, the second electrode layer 50 can include a plurality of second electrodes 51 corresponding to a plurality of isolation openings 41.

[0115] Based on this, the morphology of the isolation structure 40 in this application embodiment has been adapted so that the first opening pattern K1 includes the second straight edge B2. With the help of the design of the second straight edge B2, the second electrode 51 can contact the isolation structure 40 at the position corresponding to the second straight edge B2, thereby improving the overlap effect between the two and improving the reliability of the transmission of the corresponding signal between the isolation structure 40 and the second electrode 51.

[0116] Furthermore, the morphology of the first electrode 21 has been adjusted in this embodiment so that the fifth orthographic projection T5 includes the first straight line side B1 and the first straight line side B1 is parallel to the second straight line side B2. This helps to improve the conformal effect between the first opening pattern K1 and the fifth orthographic projection T5, thereby helping to reduce the parasitic capacitance between the first electrode 21 and the isolation structure 40.

[0117] The specific extension directions of the first straight edge B1 and the second straight edge B2 are not limited in this embodiment. Optionally, the display panel 100 also includes scan lines, with the first straight edge B1 parallel or perpendicular to the scan lines. The scan lines are trace structures used to transmit scan signals. Depending on the actual needs of the display panel, the scan lines can be parallel to or perpendicular to the first straight edge B1.

[0118] In some embodiments, the light-emitting structure 31 has a sixth orthographic projection T6 on the substrate 10, and the outer contour shape of the sixth orthographic projection T6 is the same as the outer contour shape of the corresponding first opening pattern K1.

[0119] In this embodiment, at least a portion of the second orthographic projection T2 of the first electrode 21 and the sixth orthographic projection T6 of the light-emitting structure 31 are identical to the outer contour shape of the first opening pattern K1. This allows the topographic designs of the light-emitting structure 31, the first electrode 21, and the isolation opening 41 to correspond in pairs, thereby improving the positional reliability among the three and also helping to reduce the size of the second orthographic projection T2 of the first electrode 21, thereby reducing the parasitic capacitance between the first electrode 21 and the isolation structure 40 and improving the reliability of their respective signal transmission.

[0120] In some embodiments, as shown in Figures 1 to 7, the sixth orthographic projection T6 includes a third straight edge B3, the first opening pattern K1 includes a second straight edge B2, and the third straight edge B3 is parallel to the second straight edge B2.

[0121] In this embodiment, the morphology of the isolation structure 40 is adaptively adjusted so that the first opening pattern K1 includes a second straight edge B2. The design of the second straight edge B2 allows the second electrode 51 to contact the isolation structure 40 at the position corresponding to the second straight edge B2, thereby improving the overlap effect between the two and improving the reliability of the transmission of the corresponding signal between the isolation structure 40 and the second electrode 51.

[0122] Furthermore, the morphology of the light-emitting structure 31 has been adjusted in this embodiment, so that the sixth orthographic projection T6 includes the third straight line side B3, and the third straight line side B3 is parallel to the second straight line side B2. This helps to improve the conformal effect between the first opening pattern K1 and the sixth orthographic projection T6, reduce the influence of the isolation structure 40 on the light-emitting effect of the light-emitting structure 31, and improve the user experience of the display panel 100.

[0123] In some alternative embodiments, the display panel 100 also includes scan lines, with the third straight edge B3 parallel or perpendicular to the scan lines.

[0124] In some embodiments, as shown in FIG4, the display panel 100 further includes a second electrode layer 50 disposed on the side of the light-emitting functional layer 30 away from the substrate 10, and the second electrode layer 50 includes a plurality of second electrodes 51 disposed in a plurality of isolation openings 41.

[0125] In this embodiment, similar to the light-emitting functional layer 30, the second electrode layer 50 also includes a plurality of second electrodes 51 corresponding to a plurality of isolation openings 41. The light-emitting structures 31 of the same color and their corresponding second electrodes 51 can be formed together in the same process. However, the second electrodes 51 corresponding to different color light-emitting structures 31 are formed independently in different processes. In this way, the fabrication of a plurality of second electrodes 51 can be achieved without the need for a fine metal mask, thereby reducing the manufacturing cost of the display panel 100.

[0126] In some embodiments, the second electrode 51 has a seventh orthographic projection on the substrate 10, and the outer contour shape of the seventh orthographic projection is the same as the outer contour shape of the first opening pattern K1.

[0127] In this embodiment, the seventh orthographic projection is the orthographic projection of the second electrode 51 onto the substrate 10. By setting the outer contour shape of the seventh orthographic projection to be the same as the outer contour shape of the first opening pattern K1, the shape matching degree between the second electrode 51 and the isolation structure 40 is improved, thereby improving the contact effect between the second electrode 51 and the isolation structure 40, and further enhancing the electrical connection strength between the second electrode 51 and the isolation structure 40, thus improving the signal transmission reliability between multiple second electrodes 51. Optionally, the isolation structure 40 includes a first isolation portion 42 and a second isolation portion 43 located on the side of the first isolation portion 42 facing away from the substrate 10, and the second electrode 51 is in contact with the sidewall of the first isolation portion 42.

[0128] In some embodiments, the seventh orthographic projection includes a fourth straight edge, the first opening pattern K1 includes a second straight edge B2, and the fourth straight edge is parallel to the second straight edge B2.

[0129] In this embodiment, the morphology of the isolation structure 40 is adaptively adjusted so that the first opening pattern K1 includes a second straight edge B2. The design of the second straight edge B2 allows the second electrode 51 to contact the isolation structure 40 at the position corresponding to the second straight edge B2, thereby improving the overlap effect between the two and improving the reliability of the transmission of the corresponding signal between the isolation structure 40 and the second electrode 51.

[0130] Furthermore, the morphology of the second electrode 51 has been adjusted in this embodiment so that the seventh orthographic projection includes the fourth straight edge, and the fourth straight edge is parallel to the second straight edge B2. In this way, the second electrode 51 can be connected to the isolation structure 40 at the location of the fourth straight edge, thereby improving the connection reliability between the two and improving the signal transmission reliability between the second electrode 51 and the isolation structure 40.

[0131] In some alternative embodiments, the display panel 100 also includes scan lines, with a fourth straight edge parallel or perpendicular to the scan lines.

[0132] In some embodiments, as shown in FIG4, the display panel 100 further includes a pixel definition layer 90 located on the side of the isolation structure 40 facing the substrate 10. The pixel definition layer 90 includes a pixel defining portion 91 and a pixel opening 92 formed by the pixel defining portion. The outer contour shape of the pixel opening 92 projected onto the substrate 10 is the same as the outer contour shape of the first opening pattern K1.

[0133] The pixel definition layer 90 is a film structure used to define the locations of different light-emitting structures 31. The pixel definition layer 90 includes a pixel defining portion 91 and a pixel opening 92 formed by the pixel defining portion 91. The pixel defining portion 91 is a solid structure in the pixel definition layer 90, and the pixel opening 92 is formed by the pixel defining portion 91, with multiple pixel openings 92 spaced apart from each other. Different pixel openings 92 are used to accommodate different light-emitting structures 31, and the orthographic projection shape of the light-emitting structure 31 on the substrate 10 is generally the same as the orthographic projection shape of the pixel opening 92 on the substrate 10, and the corresponding orthographic projection areas are often positively correlated. Optionally, the light-emitting structure 31 has a sixth orthographic projection T6 on the substrate 10, and the outer contour shape of the sixth orthographic projection T6 is the same as the outer contour shape of the corresponding pixel opening 92's orthographic projection on the substrate 10.

[0134] Based on this, the embodiments of this application adjust the structure of the pixel definition layer 90 to set the outer contour shape of the pixel opening 92 projected onto the substrate 10 to be the same as the outer contour shape of the first opening pattern K1, so that the outer contour shape of the sixth orthographic projection T6 can be the same as the outer contour shape of the first opening pattern K1, thereby realizing the conformal design between the light-emitting structure 31 and the isolation opening 41, which helps to improve the light-emitting reliability of the light-emitting structure 31.

[0135] In some embodiments, as shown in FIG2, the first opening pattern K1 includes multiple straight edges and a first arc edge B4, and two adjacent straight edges of the first opening pattern K1 are connected by the first arc edge B5.

[0136] In this embodiment of the application, the two adjacent straight lines of the first opening pattern K1 are connected by the first arc edge B4. Correspondingly, the isolation structure 40 has an arc structure corresponding to the first arc edge B4, which is beneficial to forming the desired shape when etching to form the isolation structure 40.

[0137] In some embodiments, the second orthographic projection T2 includes multiple straight lines and a second circular arc edge B5, and two adjacent straight lines of the second orthographic projection T2 are connected by the second circular arc edge B5.

[0138] In this embodiment of the application, the first opening pattern K1 corresponding to the isolation structure 40 has a first arc edge B4. In order to make the orthographic projection shape of the isolation opening 41 and the first electrode 21 match, the second orthographic projection T2 of the first electrode 21 has a second arc edge B5 corresponding to the first arc edge B4, thereby improving the conformal effect between the two.

[0139] In some embodiments, as shown in Figures 1 to 3, for the same light-emitting structure 31, the radius of curvature of the second arc edge B5 corresponding to the light-emitting structure 31 is greater than the radius of curvature of the first arc edge B4 corresponding to the light-emitting structure 31.

[0140] In some embodiments, the light-emitting functional layer 30 includes a first light-emitting structure 31a and a second light-emitting structure 31b with different light-emitting colors. The first arc edge B4 of the first opening pattern K1 corresponding to the first light-emitting structure 31a has a different radius of curvature than the first arc edge B4 of the first opening pattern K1 corresponding to the second light-emitting structure 31b.

[0141] In this embodiment, the radii of curvature of the rounded corner structures of the sixth orthographic projection of different color light-emitting structures 31 are usually different. Therefore, the radii of curvature of the first arc edge B4 of the first opening pattern K1 corresponding to the first light-emitting structure 31a and the first arc edge B4 of the first opening pattern K1 corresponding to the second light-emitting structure 31b are set differently. This makes the shape of the first opening pattern K1 corresponding to the first light-emitting structure 31a match the shape of the sixth orthographic projection of the first light-emitting structure 31a, and the shape of the first opening pattern K1 corresponding to the second light-emitting structure 31b match the shape of the sixth orthographic projection of the second light-emitting structure 31b, thereby improving display performance.

[0142] Similarly, in some embodiments, the second arc edge B5 corresponding to the second orthographic projection T2 of the first light-emitting structure 31a has a different radius of curvature than the second arc edge B2 corresponding to the second orthographic projection T2 of the second light-emitting structure 31b.

[0143] In some embodiments, as shown in Figures 1 to 3, a plurality of first opening patterns K1 include at least one first sub-opening K11, at least one second sub-opening K12, and at least one third sub-opening K13. The first sub-opening K11, the second sub-opening K12, and the third sub-opening K13 are respectively configured to correspond to light-emitting structures 31 of different colors. The plurality of first opening patterns K1 constitute repeating units F, and the plurality of repeating units F are repeatedly arranged. The repeating unit F includes a first sub-opening K11, a second sub-opening K12, and a third sub-opening K13, and the first sub-opening K11 and the second sub-opening K12 are arranged side by side in the first direction X.

[0144] The first sub-opening K11, the second sub-opening K12, and the third sub-opening K13 are respectively configured to correspond to light-emitting structures 31 of different colors. For example, the multiple light-emitting structures 31 include a first light-emitting structure 31a, a second light-emitting structure 31b, and a third light-emitting structure 31c of different colors. The orthographic projection of the first light-emitting structure 31a on the substrate 10 can overlap with the first sub-opening K11, the orthographic projection of the second light-emitting structure 31b on the substrate 10 can overlap with the second sub-opening K12, and the orthographic projection of the third light-emitting structure 31c on the substrate 10 can overlap with the third sub-opening K13.

[0145] The arrangement of multiple different first opening patterns K1 usually corresponds to the arrangement of multiple corresponding light-emitting structures 31. Furthermore, multiple adjacent light-emitting structures 31 can collectively form a pixel unit, which is the smallest repeating unit composed of multiple light-emitting structures 31, and these pixel units can be repeatedly arranged along a specific direction. Therefore, multiple first opening patterns K1 can constitute repeating units F corresponding to pixel units, and these repeating units F are repeatedly arranged.

[0146] Furthermore, the number and arrangement of the multiple light-emitting structures 31 in a single pixel unit can be consistent with the number and arrangement of the multiple first opening patterns K1 in a single repeating unit F. Based on this, the repeating unit F includes a first sub-opening K11, a second sub-opening K12, and a third sub-opening K13, with the first sub-opening K11 and the second sub-opening K12 arranged side-by-side in the first direction X. This indicates that the pixel unit includes a first light-emitting structure 31a, a second light-emitting structure 31b, and a third light-emitting structure 31c, with the first light-emitting structure 31a and the second light-emitting structure 31b arranged side-by-side in the first direction X.

[0147] Furthermore, the positional relationship between the second sub-opening K12 and the third sub-opening K13 in a single repeating unit F is not limited in this embodiment. Optionally, as shown in FIG2, in the repeating unit F, the third sub-opening K13 is located along the first direction X on the side of the second sub-opening K12 away from the first sub-opening K11, indicating that in the pixel unit, the third light-emitting structure 31c can be located along the first direction X on the side of the second light-emitting structure 31b away from the first sub-opening K11. Or, as shown in FIG8, the third sub-opening K13 is located along the second direction Y on the same side of the first sub-opening K11 and the second sub-opening K12, and the first direction X and the second direction Y intersect. That is, in the pixel unit, the third light-emitting structure 31c can be located along the second direction Y on the same side of the first light-emitting structure 31a and the second light-emitting structure 31b. Optionally, the first direction X, the second direction Y, and the thickness direction Z are arranged perpendicularly to each other.

[0148] In this embodiment of the application, depending on the actual needs, the conformal design of the second orthographic projection T2 and the first opening pattern K1 can be applied to the arrangement structure shown in Figure 2 or Figure 8. In other words, the conformal design of the second orthographic projection T2 and the first opening pattern K1 can be applied to various types of pixel arrangement structures, thereby meeting the need for reducing parasitic capacitance required by different display panels 100, and has strong flexibility and applicability.

[0149] In some embodiments, as shown in Figures 2, 3 and 8, the first opening pattern K1 includes a first side R1 parallel to the first direction X and a second side R2 parallel to the second direction Y, and the second orthographic projection T2 includes a third side R3 parallel to the first direction X and a fourth side R4 parallel to the second direction Y, wherein the first direction X intersects the second direction Y.

[0150] For the two types of pixel arrangement methods mentioned above, the first opening pattern K1 can include a first side R1 and a second side R2. The first side R1 and the second side R2 are both straight sides of the first opening pattern K1, but their corresponding extension directions are not the same. The first side R1 extends along the first direction X, and the second side R2 extends along the second direction Y.

[0151] The third side R3 is a straight line structure in the second orthographic projection T2 that corresponds to the first side R1, and the fourth side R4 is a straight line structure in the second orthographic projection T2 that corresponds to the second side R2. The arrangement of the third side R3 and the fourth side R4 enables at least a part of the structure of the second orthographic projection T2 to conform to the first opening pattern K1, thereby helping to reduce the area size of the second orthographic projection T2 and reduce the parasitic capacitance between the first electrode 21 and the isolation structure 40.

[0152] As can be seen from the foregoing, due to the presence of the isolation structure 40, the second electrode layer 50 can include multiple second electrodes 51 corresponding to the multiple isolation openings 41. Based on this, in order to meet display requirements, the multiple second electrodes 51 need to be scanned and transmitted sequentially in a specific linear direction to meet the transmission requirements of the corresponding power signals.

[0153] Based on this, depending on the actual needs, the first direction X can be the scanning direction of multiple second electrodes 51. Therefore, the first side R1 is a straight line structure parallel to the scanning direction of the multiple second electrodes 51. In this design, the first side R1 can improve the signal transmission efficiency and accuracy corresponding to the multiple second electrodes 51, thereby improving the display reliability of the display panel 100. Similarly, in other cases, the second direction Y can be the scanning direction of multiple second electrodes 51. Therefore, the second side R2 is a straight line structure parallel to the scanning direction of the multiple second electrodes 51. In this design, the second side R2 can improve the signal transmission efficiency and accuracy corresponding to the multiple second electrodes 51, thereby improving the display reliability of the display panel 100.

[0154] It should be noted that the first side R1 and the second side R2 are usually arranged alternately around the center of the first opening pattern K1. For the first side R1 and the second side R2 that are closest to each other, they can be directly connected, or other straight lines or curves can be provided between them. This application embodiment does not limit this.

[0155] In some embodiments, the first opening pattern K1 further includes a first arc edge B4 connecting the first side R1 and the second side R2, and the second orthographic projection T2 further includes a second arc edge B5 connecting the third side R3 and the fourth side R4.

[0156] In this embodiment, considering that the sixth orthographic projection of the light-emitting structure 31 may include a rounded corner structure, the morphology of the isolation structure 40 and the first electrode 21 is adjusted so that the first opening pattern K1 includes a first arc edge B4 corresponding to the rounded corner structure and connecting the first side R1 and the second side R2, and the second orthographic projection T2 includes a second arc edge B5 corresponding to the rounded corner structure and connecting the third side R3 and the fourth side R4. This allows the shape of the isolation opening 41 and the first electrode 21 to further match the shape of the light-emitting structure 31, thereby improving the light emission effect of the light-emitting structure 31 and helping to reduce the parasitic capacitance between the first electrode 21 and the isolation structure 40.

[0157] In some embodiments, referring to FIG9, a plurality of first opening patterns K1 include a first sub-opening K11, a second sub-opening K12, and a third sub-opening K13. The first sub-opening K11, the second sub-opening K12, and the third sub-opening K13 are respectively configured to correspond to light-emitting structures 31 of different colors. The centers of at least two first sub-openings K11 and the centers of at least two second sub-openings K12 form a first virtual polygon N1. The center of the first sub-opening K11 is located at the first vertex of the first virtual polygon N1, and the center of the second sub-opening K12 is located at the second vertex of the first virtual polygon N1. The first vertex and the second vertex in the first virtual polygon N1 are alternately arranged, and the third sub-opening K13 is located inside the first virtual polygon N1.

[0158] The centers of at least four third sub-openings K13 form a second virtual polygon N2, with the center of the third sub-opening K13 located at the vertices of the second virtual polygon N2, and the first sub-opening K11 or the second sub-opening K12 located inside the second virtual polygon N2.

[0159] In addition to the arrangements shown in Figures 2 and 8, the multiple first opening patterns K1 can also be arranged as shown in Figure 9. In this arrangement, the centers of at least two first sub-openings K11 and the centers of at least two second sub-openings K12 form a first virtual polygon N1. Here, "center" refers to the geometric center of the corresponding structural pattern. The "first virtual polygon N1" is a fictitious polygon formed by sequentially connecting the centers of at least two first sub-openings K11 and the centers of two second sub-openings K12. The first virtual polygon N1 can be a quadrilateral, hexagon, or octagon, etc. Further, when the first virtual polygon N1 is a quadrilateral, the quadrilateral can be a rectangular structure, such as a rectangle or a square, or it can be a parallelogram other than a rectangle, or it can be a trapezoidal structure. This application embodiment does not limit this.

[0160] The third sub-opening K13 is located inside the first virtual polygon N1. The center of the third sub-opening K13 may coincide with the center of the first virtual polygon N1, or they may be offset from each other. This application embodiment does not impose any restrictions on this. Furthermore, for two adjacent first virtual polygons N1, they may share the center of a first sub-opening K11 and the center of a second sub-opening K12.

[0161] In addition to the first virtual polygon N1, the centers of at least four third sub-openings K13 can also form a second virtual polygon N2. The "second virtual polygon N2" mentioned here is a virtual quadrilateral formed by connecting the centers of the four third sub-openings K13 sequentially. The second virtual polygon N2 can be a quadrilateral, hexagon, or octagon, etc. Furthermore, when the second virtual polygon N2 is a quadrilateral, the quadrilateral can have a rectangular structure, such as a rectangle or square, or it can be a parallelogram other than a rectangle, or it can be a trapezoidal structure; this application embodiment does not impose any limitations on this.

[0162] The first sub-opening K11 or the second sub-opening K12 is located inside the second virtual polygon N2. For two adjacent second virtual polygons N2, one of the second virtual polygons N2 has the first sub-opening K11, and the other has the second sub-opening K12. Within a single second virtual polygon N2 with the first sub-opening K11, the center of the first sub-opening K11 may coincide with the center of the second virtual polygon N2, or they may be offset from each other. Similarly, within a single second virtual polygon N2 with the second sub-opening K12, the center of the second sub-opening K12 may coincide with the center of the second virtual polygon N2, or they may be offset from each other. This embodiment of the application does not impose any limitations on this.

[0163] Considering the arrangement of multiple different first opening patterns K1, which typically correspond to the arrangement of multiple light-emitting structures 31, the multiple light-emitting structures 31 may optionally include a first light-emitting structure 31a, a second light-emitting structure 31b, and a third light-emitting structure 31c. The first light-emitting structure 31a, the second light-emitting structure 31b, and the third light-emitting structure 31c are respectively configured to correspond to the first sub-opening K11, the second sub-opening K12, and the third sub-opening K13. The centers of at least two first light-emitting structures 31a and at least two second light-emitting structures 31b form a third virtual polygon. The center of the first light-emitting structure 31a is located at the third vertex of the third virtual polygon, and the center of the second light-emitting structure 31b is located at the fourth vertex of the third virtual polygon. The third and fourth vertices of the third virtual polygon are alternately arranged, and the third light-emitting structure 31c is located inside the third virtual polygon.

[0164] The centers of at least four third luminous structures 31c form a fourth virtual polygon, with the center of the third luminous structure 31c located at the vertex of the fourth virtual polygon, and the first luminous structure 31a or the second luminous structure 31b located inside the fourth virtual polygon.

[0165] In this embodiment of the application, depending on the actual needs, the conformal design of the second orthographic projection T2 and the first opening pattern K1 can also be applied to the arrangement structure shown in Figure 8. In other words, the conformal design of the second orthographic projection T2 and the first opening pattern K1 can be applied to various types of pixel arrangement structures to meet the needs of different display panels 100 to reduce parasitic capacitance, and has strong flexibility and applicability.

[0166] In some embodiments, the center of the third sub-opening K13 coincides with the center of the first virtual polygon N1; or, in the first virtual polygon N1, the center of the third sub-opening K13 is equidistant from the centers of at least two second sub-openings K12, and the center of the third sub-opening K13 is equidistant from the centers of at least two first sub-openings K11.

[0167] Considering that the relative positional relationship of the multiple light-emitting structures 31 usually corresponds to the positional relationship of the multiple first opening patterns K1, in this embodiment of the application, the center of the third light-emitting structure 31c can coincide with the center of the third virtual polygon; or, in the third virtual polygon, the center of the third light-emitting structure 31c is at the same distance from the center of at least two second light-emitting structures 31b, and the center of the third light-emitting structure 31c is at the same distance from the center of at least two first light-emitting structures 31a.

[0168] This design can reduce the risk of the distance between a single third light-emitting structure 31c and the adjacent first light-emitting structure 31a being too small or too large, and it can also reduce the risk of the distance between a single third light-emitting structure 31c and the adjacent second light-emitting structure 31b being too small or too large, thereby helping to improve the display performance of the display panel 100.

[0169] In some embodiments, as shown in Figures 9 and 10, the first opening pattern K1 includes a fifth side R5 extending along a third direction and a sixth side R6 extending along a fourth direction, with the fifth side R5 and the sixth side R6 alternating. The second orthographic projection T2 includes a seventh side R7 extending along a third direction and an eighth side R8 extending along a fourth direction, with the seventh side R7 and the eighth side R8 alternating. A plurality of third sub-openings K13 are arranged in an array along a first direction X and a second direction Y, with the first direction X, the second direction Y, the third direction, and the fourth direction intersecting in pairs.

[0170] As can be seen from the figure, in this arrangement, the first direction X and the second direction Y correspond to the two arrangement directions of multiple third sub-openings K13. For example, for a rectangular display panel 100, the first direction X and the second direction Y can be the length and width directions of the display panel 100, respectively. Further optionally, the display panel 100 also includes scan lines, with one of the first direction X and the second direction Y parallel to the scan lines and the other perpendicular to them.

[0171] For the third and fourth directions, both directions intersect with the first direction X and the second direction Y, and these two directions are set to intersect each other. Optionally, the angle between the third direction and the first direction X can be one of 30°, 45°, and 60°. Similarly, the angle between the fourth direction and the first direction X can also be one of 30°, 45°, and 60°.

[0172] Considering that in this arrangement, the sixth orthographic projection of the light-emitting structure 31 typically corresponds to a straight line structure extending along a third direction and a straight line structure extending along a fourth direction, the morphology of the isolation structure 40 and the second electrode 51 in this embodiment of the application has been adjusted so that the first opening pattern K1 includes a fifth side R5 extending along a third direction and a sixth side R6 extending along a fourth direction, with the fifth side R5 and the sixth side R6 alternating. The second orthographic projection T2 includes a seventh side R7 extending along a third direction and an eighth side R8 extending along a fourth direction, with the seventh side R7 and the eighth side R8 alternating.

[0173] In this design, the second orthographic projection T2 can be conformally aligned with the first opening pattern K1 via the seventh side R7 and the eighth side R8, thereby reducing the overlap area between the isolation structure 40 and the first electrode 21 and decreasing parasitic capacitance. Simultaneously, the shapes of the second orthographic projection T2 and the first opening pattern K1 can better match the sixth orthographic projection, thereby improving the control precision of the first electrode 21 over the light-emitting structure 31 and the positional reliability of the light-emitting structure 31 relative to the isolation opening 41, thus enhancing the light emission effect of the display panel 100.

[0174] In some embodiments, as shown in Figures 9 and 10, the first opening pattern K1 further includes a first connecting edge R9 extending along the first direction X, two fifth edges R5, two first connecting edges R9, and two sixth edges R6 connected end to end in sequence. The second orthographic projection T2 further includes a second connecting edge R10 extending along the first direction X, two seventh edges R7, two second connecting edges R10, and two eighth edges R8 connected end to end in sequence.

[0175] In this embodiment, the morphology of the isolation structure 40 is adaptively adjusted so that the first opening pattern K1 includes a first connecting edge R9. The design of the first connecting edge R9 allows the second electrode 51 to contact the isolation structure 40 at the position corresponding to the first connecting edge R9, thereby improving the overlap effect between the two and improving the reliability of the transmission of the corresponding signal between the isolation structure 40 and the second electrode 51.

[0176] Furthermore, the morphology of the first electrode 21 has been adjusted in this embodiment, such that the fifth orthographic projection T5 includes the second connecting edge R10, and the first connecting edge R9 is parallel to the second connecting edge R10. This helps to improve the conformal effect between the first opening pattern K1 and the fifth orthographic projection T5, thereby helping to reduce the parasitic capacitance between the first electrode 21 and the isolation structure 40.

[0177] In some embodiments, as shown in FIG4, the display panel 100 includes a first conductor layer 60 disposed on the side of the first electrode layer 20 facing the substrate 10, and the first conductor layer 60 includes a first signal line 61.

[0178] The display panel 100 may have multiple conductor layers on the side of the first electrode layer 20 facing the substrate 10, and the first conductor layer 60 may be the conductor layer closest to the first electrode layer 20 among the multiple conductor layers. Optionally, the display panel 100 may also include a second conductor layer disposed on the side of the first conductor layer 60 facing the substrate 10.

[0179] The first signal line 61 is a trace structure located within the first conductor layer 60 and used to transmit a specific voltage signal. The specific type of the first signal line 61 is not limited in this embodiment. Optionally, the first signal is used to transmit either a data signal (data) or a power signal (vdd).

[0180] Furthermore, the first electrode layer 20 and the first signal line 61 can have various positional relationships. In some optional embodiments, as shown in Figures 1, 4, and 11, the orthographic projection of the first signal line 61 onto the substrate 10 is located between adjacent second orthographic projections T2. In this design, the presence of the first signal line 61 does not cause local elevation of the first electrode 21, thereby helping to improve the overall flatness of the first electrode 21.

[0181] Alternatively, considering that in some cases, as shown in Figures 12 and 13, the internal structure of the first conductor layer 60 is relatively compact, and the area between adjacent second orthographic projections T2 alone cannot meet the layout requirements of the first signal line 61, in some alternative embodiments, the first electrode 21 includes a body portion 211, which has a fifth orthographic projection T5 on the substrate 10, and the orthographic projection of the first signal line 61 on the substrate 10 overlaps with the fifth orthographic projection T5.

[0182] Furthermore, the fifth orthographic projection T5 may overlap only with the orthographic projection of a single first signal line 61 on the substrate 10, or the fifth orthographic projection T5 may overlap with the orthographic projections of multiple first signal lines 61 on the substrate 10 simultaneously. This application embodiment does not impose any limitations on this.

[0183] In some embodiments, as shown in FIG12, the fifth orthographic projection T5 overlaps with the orthographic projection of the single first signal line 61 on the substrate 10, and the fifth orthographic projection T5 is symmetrically arranged with respect to the orthographic projection of the single first signal line 61 on the substrate 10.

[0184] It should be noted that the first signal line 61 can be a perfectly straight line, or it can be curved in some local locations but maintain an overall approximately straight shape. Furthermore, the phrase "the fifth orthographic projection T5 is symmetrically arranged relative to the orthographic projection of a single first signal line 61 onto the substrate 10" refers to the following: the fifth orthographic projection T5 has a central axis, and the orthographic projections of the first signal lines 61 corresponding to a portion of the structure of the fifth orthographic projection T5 onto the substrate 10 can coincide with the central axis or be spaced apart within a small distance. The central axis is a virtual straight line passing through the center of the fifth orthographic projection T5 and parallel to the first signal line 61.

[0185] In this embodiment, by symmetrically arranging the fifth orthographic projection T5 relative to the orthographic projection of the single first signal line 61 on the substrate 10, the layout requirements of the first signal line 61 are met, while ensuring that the first electrode 21 is symmetrical about the surface of the substrate 10. This allows the first electrode 21 to have the same support effect on different structures located on both sides of the isolation opening 41 in the isolation structure 40, thereby reducing and improving the reliability of the extension of some film layers at the sidewall of the isolation structure 40 and improving the manufacturing yield of the display panel 100.

[0186] In some other embodiments, as shown in FIG13, the fifth orthographic projection T5 overlaps with the orthographic projections of a plurality of first signal lines 61 on the substrate 10, and the orthographic projections of the plurality of first signal lines 61 overlapping with the fifth orthographic projection T5 on the substrate 10 are symmetrically arranged with respect to the central axis of the fifth orthographic projection T5.

[0187] In this embodiment, by overlapping the fifth orthographic projection T5 with the orthographic projections of multiple first signal lines 61 on the substrate 10, the layout difficulty of the multiple first signal lines 61 can be further reduced. Simultaneously, the orthographic projections of the multiple first signal lines 61 overlapping with the fifth orthographic projection T5 on the substrate 10 are symmetrically arranged with respect to the central axis of the fifth orthographic projection T5. This ensures that the first electrode 21 is symmetrical about the surface of the substrate 10, thereby enabling the first electrode 21 to provide the same support for different structures located on both sides of the isolation opening 41 in the isolation structure 40. This reduces and improves the reliability of the film layer extension at the sidewall of the isolation structure 40, and improves the manufacturing yield of the display panel 100.

[0188] In some embodiments, please refer to FIG14, the display panel 100 further includes a first encapsulation layer 81 disposed on the side of the light-emitting functional layer 30 away from the substrate 10, and the first encapsulation layer 81 includes an encapsulation portion 811 disposed corresponding to the isolation opening 41.

[0189] The first encapsulation layer 81 is a film structure used to encapsulate and protect the light-emitting functional layer 30. The first encapsulation layer 81 includes encapsulation parts 811 disposed in multiple isolation openings 41. The encapsulation parts 811 can be prepared and formed simultaneously with the light-emitting structure 31 and the first electrode 21. The multiple encapsulation parts 811 can be correspondingly arranged with the multiple light-emitting structures 31 to achieve independent encapsulation of the multiple light-emitting structures 31 and improve the encapsulation reliability.

[0190] In addition, the encapsulation portion 811 is also a structure in the display panel 100 that contacts the isolation structure 40 and extends at the sidewall of the isolation structure 40. In order to improve the structural reliability of the encapsulation portion 811, in some embodiments, when the display panel 100 includes a first signal line 61, the orthographic projection of the first signal line 61 on the substrate 10 can be located between adjacent second orthographic projections T2. Alternatively, the fifth orthographic projection T5 can also overlap with the orthographic projection of a single first signal line 61 on the substrate 10, and the fifth orthographic projection T5 is symmetrically arranged with respect to the orthographic projection of the single first signal line 61 on the substrate 10. Or, the fifth orthographic projection T5 can also overlap with the orthographic projections of multiple first signal lines 61 on the substrate 10, and the orthographic projections of the multiple first signal lines 61 overlapping with the fifth orthographic projection T5 on the substrate 10 are symmetrically arranged with respect to the central axis of the fifth orthographic projection T5.

[0191] In some embodiments, the outer contour shape of the package portion 811 projected onto the substrate 10 is the same as the outer contour shape of the first opening pattern K1.

[0192] In this embodiment, considering that the sixth orthographic projection of the light-emitting structure 31 is usually the same as the outer contour shape of the first opening pattern K1, this embodiment also sets the outer contour shape of the orthographic projection of the encapsulation part 811 on the substrate 10 to be the same as the outer contour shape of the first opening pattern K1, so that the orthographic projection of the encapsulation part 811 on the substrate 10 can match the sixth orthographic projection, thereby improving the relative positional reliability between the encapsulation part 811 and the light-emitting structure 31, and improving the encapsulation reliability of the encapsulation part 811 on the light-emitting structure 31.

[0193] In addition to the first encapsulation layer 81, in some alternative embodiments, the display panel 100 further includes a second encapsulation layer 82 disposed on the side of the first encapsulation layer 81 facing away from the substrate 10, and a third encapsulation layer 83 disposed on the side of the second encapsulation layer 82 facing away from the substrate 10.

[0194] Unlike the first encapsulation layer 81, the second encapsulation layer 82 and the third encapsulation layer 83 can have a planar structure, meaning that the orthographic projections of the second encapsulation layer 82 and the third encapsulation layer 83 onto the substrate 10 can both cover the orthographic projections of the multiple encapsulation portions 811 onto the substrate 10. Furthermore, the cooperation between the first encapsulation layer 81, the second encapsulation layer 82, and the third encapsulation layer 83 helps to further enhance the encapsulation and protection effect of the light-emitting functional layer 30, thereby improving the reliability of the display panel 100.

[0195] The material composition of the first encapsulation layer 81, the second encapsulation layer 82, and the third encapsulation layer 83 is not limited in the embodiments of this application. Optionally, the first encapsulation layer 81 and the third encapsulation layer 83 may comprise inorganic materials, and the second encapsulation layer 82 may comprise organic materials.

[0196] Secondly, embodiments of this application provide a display panel 100, which includes a substrate 10, a first electrode layer 20, an isolation structure 40, and a light-emitting functional layer 30. The first electrode layer 20 is disposed on one side of the substrate 10 and includes a plurality of first electrodes 21 spaced apart. The isolation structure 40 is disposed on one side of the substrate 10 and has a plurality of isolation openings 41. The orthographic projections of the first electrodes 21 onto the substrate 10 overlap with the orthographic projections of the isolation openings 41 onto the substrate 10. The light-emitting functional layer 30 is disposed on the side of the first electrode layer 20 facing away from the substrate 10 and includes light-emitting structures 31 corresponding to the first electrodes 21.

[0197] The isolation structure 40 has a first orthographic projection T1 on the substrate 10, the first orthographic projection T1 defines a plurality of first opening patterns K1, the first electrode 21 has a second orthographic projection T2 on the substrate 10, the first opening patterns K1 overlap with the second orthographic projection T2, and at least a portion of the outer contour shape of the second orthographic projection T2 is the same as the outer contour shape of the first opening pattern K1.

[0198] The substrate 10 is a structure in the display panel 100 used to support other film layers. The substrate 10 includes multiple film layer structures. The specific composition of the film layer structures within the substrate 10 is not limited in the embodiments of this application. The multiple film layer structures within the substrate 10, as well as the multiple film layer structures located outside the substrate 10, are all stacked along the thickness direction Z of the substrate 10. The thickness directions Z of different film layer structures, the thickness direction Z of the display panel 100, and the thickness direction Z of the substrate 10 are usually parallel. Therefore, for ease of understanding, the thickness directions Z of different film layer structures, the thickness direction Z of the display panel 100, and the thickness direction Z of the substrate 10 are all shown in the same direction in the accompanying drawings.

[0199] The first electrode layer 20 and the light-emitting functional layer 30 are disposed on the same side of the substrate 10 along the thickness direction Z, and the light-emitting functional layer 30 is located on the side of the first electrode layer 20 facing away from the substrate 10 along the thickness direction Z. The light-emitting functional layer 30 is a functional film layer in the display panel 100 used to achieve the display effect, and the first electrode layer 20 is an electrode film layer used to control whether the light-emitting functional layer 30 emits light. Optionally, the display panel 100 further includes a second electrode layer 50 located on the side of the light-emitting functional layer 30 facing away from the substrate 10, and the first electrode layer 20 and the second electrode layer 50 cooperate with each other to control whether the light-emitting functional layer 30 emits light. For example, the first electrode layer 20 is an anode layer, and the second electrode layer 50 is a cathode layer.

[0200] The first electrode layer 20 includes a plurality of first electrodes 21 spaced apart. The light-emitting functional layer 30 includes light-emitting structures 31 corresponding to the first electrodes 21. Here, "light-emitting structures 31 corresponding to first electrodes 21" means that the orthographic projection of each light-emitting structure 31 on the substrate 10 overlaps with the orthographic projection of a first electrode 21 on the substrate 10. Depending on actual needs, a single first electrode 21 may correspond to only a single light-emitting structure 31, meaning a single first electrode 21 is only used to control a single light-emitting structure 31; or a single first electrode 21 may correspond to multiple light-emitting structures 31, meaning a single first electrode 21 can also be used to control multiple light-emitting structures 31. For ease of understanding, the embodiments of this application will be described below using the example of a single first electrode 21 corresponding to only a single light-emitting structure 31.

[0201] The light-emitting structure 31 includes, but is not limited to, a red light-emitting structure 31 for emitting red light, a green light-emitting structure 31 for emitting green light, and a blue light-emitting structure 31 for emitting blue light. Each light-emitting structure 31 may include stacked film layers such as a hole injection layer (HIL), a hole transport layer (HTL), a light-emitting layer, an electron injection layer (EIL), and an electron transport layer (ETL). In some other embodiments, the light-emitting structure 31 may include multiple stacked light-emitting layers, and a charge generation layer is provided between adjacent light-emitting layers.

[0202] The isolation structure 40 is a structure in the display panel 100 used to separate different light-emitting structures 31 at intervals. The isolation structure 40 encloses and forms a plurality of isolation openings 41. The plurality of isolation openings 41 are respectively arranged corresponding to the plurality of light-emitting structures 31 and the plurality of first electrodes 21. That is, the orthographic projection of a single isolation opening 41 on the substrate 10 can overlap with the orthographic projection of a single light-emitting structure 31 on the substrate 10, and can also overlap with the orthographic projection of a single first electrode 21 on the substrate 10.

[0203] The isolation structure 40 allows the light-emitting functional layer 30 to form multiple spaced light-emitting structures 31 without the need for a fine metal mask, thereby reducing the manufacturing cost of the display panel 100. Specifically, taking the red light-emitting structure 31 before the green light-emitting structure 31 is fabricated as an example, since the fine metal mask is eliminated, the red light-emitting material corresponding to the red light-emitting structure 31 first falls into each isolation opening 41. Then, a portion of the red light-emitting material in the isolation opening 41 is selectively etched away, while a portion is retained to form the red light-emitting structure 31. Afterward, the green light-emitting material corresponding to the green light-emitting structure 31 falls into each isolation opening 41. Then, a portion of the green light-emitting material in the isolation opening 41 is selectively etched away, while a portion is retained to form the green light-emitting structure 31.

[0204] The first orthographic projection T1 is the orthographic projection of the isolation structure 40 onto the substrate 10. Due to the presence of the isolation opening 41, the first orthographic projection T1 can define and form multiple first opening patterns K1. Considering that the cross-sectional area of ​​the isolation structure 40 at different positions in the thickness direction Z may not be completely consistent, the first orthographic projection T1 is the orthographic projection of the isolation structure 40 at the position with the largest cross-sectional area, and the first opening pattern K1 is the opening pattern defined and formed by the first orthographic projection T1.

[0205] Similarly, like the isolation structure 40, the radial dimensions of the isolation opening 41 at different positions in the thickness direction Z are not completely consistent. Therefore, the orthographic projection of the isolation opening 41 on the substrate 10 is the orthographic projection of the isolation opening 41 at the position with the largest radial dimension, and the position with the largest radial dimension of the isolation opening 41 is usually aligned with the position with the smallest cross-sectional area of ​​the isolation structure 40. Thus, it can be seen that the first opening pattern K1 is not the orthographic projection of the isolation opening 41 on the substrate 10. Referring to Figure 4, the orthographic projection of the virtual line I1 on the substrate in Figure 4 can coincide with the outer contour of the first opening pattern K1, while the orthographic projection of the virtual line I2 on the substrate can coincide with the outer contour of the orthographic projection of the isolation opening 41 on the substrate 10. Further optionally, the outer contour shape of the orthographic projection of the isolation opening 41 on the substrate 10 can be the same as the outer contour shape of the first opening pattern K1.

[0206] It should be noted that the "radial dimension" mentioned here refers to the dimension of the isolation opening 41 at a specific position in the direction parallel to the plane where the substrate 10 is located. It does not constitute a limitation on the shape of the isolation opening 41. The orthographic projection of the isolation opening 41 on the substrate 10 and the first opening pattern K1 can be circular, polygonal or other regular or irregular shapes. This application embodiment does not limit this.

[0207] The second orthographic projection T2 is the orthographic projection of the first electrode 21 onto the substrate 10. The second orthographic projection T2 overlaps with the first opening pattern K1, and the orthographic projection of the light-emitting structure 31 onto the substrate 10 also overlaps with the first opening pattern K1. The specific positional relationship between the first orthographic projection T1 and the second orthographic projection T2 is not limited in this embodiment. For example, the first orthographic projection T1 and the second orthographic projection T2 can overlap, with the end of the first electrode 21 located below the isolation structure 40 and insulated from it. Alternatively, the second orthographic projection T2 can be located outside the first orthographic projection T1.

[0208] In related technologies, the display panel 100 often does not have an isolation structure 40, and a large-sized anode structure is required to cover and shield the conductor or semiconductor structure inside the substrate 10, thereby reducing the adverse effects caused by light shining on the conductor or semiconductor structure.

[0209] However, in this embodiment, considering the presence of the isolation structure 40, if the size and shape of the first electrode 21 are still set to be similar to those in related technologies, it will affect the display performance of the display panel. For example, it will cause the first orthographic projection T1 and the second orthographic projection T2 to overlap and generate a large overlap area. Since at least a portion of the structure within the isolation structure 40 can be configured to include conductive materials, that is, at least a portion of the structure within the isolation structure 40 can be a conductor structure or a semiconductor structure, this design is prone to generating a large parasitic capacitance between the isolation structure 40 and the first electrode 21, and generating the risk of signal crosstalk, affecting the reliability of signal transmission of the isolation structure 40 and the first electrode 21 respectively, and thus easily having an adverse effect on the display screen.

[0210] In view of this, the morphology and shape of the first electrode 21 have been adjusted in this embodiment. By changing the morphology of the first electrode 21, the second orthographic projection T2 is configured to include a first straight edge B1 parallel to the second straight edge B2 in the first opening pattern K1, so that at least part of the outer contour shape of the second orthographic projection T2 can match the outer contour shape of the first opening pattern K1. This helps to reduce the overall size of the first electrode 21 and reduce the overlap area between the first orthographic projection T1 and the second orthographic projection T2. ​​This design can reduce the parasitic capacitance between the two, improve the reliability of signal transmission of the isolation structure 40 and the first electrode 21, and improve the display reliability of the display panel 100.

[0211] Furthermore, the isolation structure 40 can also cover and shield some of the conductor or semiconductor structures located within the substrate 10, thereby reducing the adverse effects of factors such as light on the conductor or semiconductor structures. Therefore, even if the size of the first electrode 21 is reduced in this embodiment, it will not affect the performance reliability of the conductor or semiconductor structures within the substrate 10, thus helping to further improve the reliability of the display panel 100.

[0212] Furthermore, in related technologies, the cathode in the cathode layer is usually only one and has a full-surface structure. However, in the embodiments of this application, due to the presence of the isolation structure 40, the second electrode layer 50 can include a plurality of second electrodes 51 corresponding to a plurality of isolation openings 41.

[0213] Based on this, the morphology of the isolation structure 40 in this application embodiment has been adapted so that the first opening pattern K1 includes the second straight edge B2. With the help of the design of the second straight edge B2, the second electrode 51 can contact the isolation structure 40 at the position corresponding to the second straight edge B2, thereby improving the overlap effect between the two and improving the reliability of the transmission of the corresponding signal between the isolation structure 40 and the second electrode 51.

[0214] In some embodiments, at least a portion of the outer contour shape of the second orthographic projection T2 is the same as the outer contour shape of the first opening pattern K1. In addition to the first straight edge B1 and the second straight edge B2, the outer contours of the second orthographic projection T2 and the first opening pattern K1 may also include other corresponding structures with the same shape, such as other parallel straight edges or corresponding curved edges.

[0215] In this embodiment, by further matching the outer contour shape of the second orthographic projection T2 with the outer contour shape of the first opening pattern K1, the overall size of the first electrode 21 is reduced, and the overlap area between the first orthographic projection T1 and the second orthographic projection T2 is reduced. This design can reduce the parasitic capacitance between the two, improve the reliability of signal transmission between the isolation structure 40 and the first electrode 21, and improve the display reliability of the display panel 100.

[0216] It should be noted that the "sameness" mentioned here refers to the outer contour shape being roughly the same, not necessarily completely identical. The same principle applies to the "sameness" mentioned later in this application, and will not be repeated here. Furthermore, for the second orthographic projection T2, the outer contour shape of the graphic corresponding to the second orthographic projection T2 can be the same as the outer contour shape of the first opening pattern K1, or, depending on actual needs, the outer contour shape of a portion of the graphic in the second orthographic projection T2 can also differ from the outer contour shape of the first opening pattern K1. This application does not impose any restrictions on this, as long as at least a portion of the outer contour shape of the graphic in the second orthographic projection T2 is the same as the outer contour shape of the first opening pattern K1.

[0217] In some embodiments, as shown in FIG4, the isolation structure 40 includes a first isolation portion 42 and a second isolation portion 43 located on the side of the first isolation portion 42 away from the substrate 10, wherein the orthographic projection of the first isolation portion 42 on the substrate 10 is located within the orthographic projection of the second isolation portion 43 on the substrate 10.

[0218] The specific dimensions and shapes of the first isolation portion 42 and the second isolation portion 43 are not limited in this embodiment. For example, the longitudinal section of the isolation structure 40 can be T-shaped, or it can be an inverted trapezoid. This design helps to prevent the luminescent material from extending along the sidewall of the first isolation portion 42 to the sidewall of the second isolation portion 43 during the fabrication of the luminescent functional layer 30. This allows for the fabrication and separation of the luminescent structures 31 corresponding to different isolation openings 41 without the need for a fine metal mask.

[0219] The embodiments of this application do not limit the material composition of the first isolation portion 42 and the second isolation portion 43. Both the first isolation portion 42 and the second isolation portion 43 may include conductive materials, or the first isolation portion 42 may include conductive materials and the second isolation portion 43 may include insulating materials, or both may include insulating materials.

[0220] In some embodiments, referring to Figures 1 to 5, the first isolation portion 42 has a third orthographic projection T3 on the substrate 10. The third orthographic projection T3 defines a plurality of second opening patterns K2. At least a portion of the outer contour shape of the second orthographic projection T2 is the same as the outer contour shape of the second opening pattern K2.

[0221] The third orthographic projection T3 is the orthographic projection of the first isolation portion 42 onto the substrate 10. The third orthographic projection T3 can define the formation of multiple second opening patterns K2. Considering that the cross-sectional area of ​​the first isolation portion 42 at different positions in the thickness direction Z may not be completely consistent, the third orthographic projection T3 is the orthographic projection of the first isolation portion 42 at the position with the largest cross-sectional area, and the second opening pattern K2 is the opening pattern formed by being surrounded and defined by the third orthographic projection T3.

[0222] The second orthographic projection T2 is the orthographic projection of the first electrode 21 onto the substrate 10. The second orthographic projection T2 overlaps with the second opening pattern K2. Similarly, the orthographic projection of the light-emitting structure 31 onto the substrate 10 also overlaps with the second opening pattern K2. The specific positional relationship between the second orthographic projection T2 and the third orthographic projection T3 is not limited in this embodiment. For example, the second orthographic projection T2 and the third orthographic projection T3 can overlap, or the second orthographic projection T2 can be located outside the third orthographic projection T3.

[0223] For the first opening pattern K1 and the second opening pattern K2, since the orthographic projection of the first isolation portion 42 on the substrate 10 is located within the orthographic projection of the second isolation portion 43 on the substrate 10, the orthographic projection of the first isolation portion 42 on the substrate 10 will not completely coincide with the orthographic projection of the isolation structure 40 on the substrate 10. That is, the first orthographic projection T1 will not coincide with the third orthographic projection T3, and therefore the first opening pattern K1 and the second opening pattern K2 will not completely coincide. Optionally, the first opening pattern K1 is located within the second opening pattern K2, and the edge of the first opening pattern K1 is spaced apart from the edge of the second opening pattern K2. In FIG5, the outer contour of the first opening pattern K1 is shown by dashed lines.

[0224] Furthermore, in this embodiment of the application, similar to the first opening pattern K1, at least part of the outer contour shape of the second orthographic projection T2 is also the same as the outer contour shape of the second opening pattern K2. In this way, through the conformal design between the two, the shape matching degree between the first electrode 21 and the light-emitting structure 31 can be further improved, the driving performance of the first electrode 21 on the light-emitting structure 31 can be improved, and the display reliability of the display panel 100 can be improved.

[0225] In some alternative embodiments, as shown in FIG4, the display panel 100 further includes a second electrode layer 50 disposed on the side of the light-emitting functional layer 30 away from the substrate 10. The second electrode layer 50 includes a second electrode 51 disposed corresponding to the isolation opening 41. The first isolation portion 42 includes a conductive material. The second electrode 51 is in contact with and electrically connected to the sidewall of the first isolation portion 42.

[0226] The phrase "the second electrode 51 is configured to correspond to the isolation opening 41" mentioned here refers to the fact that the orthographic projection of the second electrode 51 on the substrate 10 overlaps with the orthographic projection of the isolation opening 41 on the substrate 10. Furthermore, the orthographic projection of the second electrode 51 on the substrate 10 overlaps with the first opening pattern K1.

[0227] The first isolation section 42 includes a conductive material and is used to transmit a corresponding power signal to the second electrode 51. In order to reduce the parasitic capacitance between the first isolation section 42 and the first electrode 21, the embodiments of this application set at least a portion of the outer contour shape of the second orthographic projection T2 to be the same as the outer contour shape of the second opening pattern K2. By means of the conformal design between the two, the overlapping area between the second orthographic projection T2 and the third orthographic projection T3 is reduced, thereby reducing the parasitic capacitance between the two and improving the reliability of the signal transmission of the first isolation section 42 and the first electrode 21.

[0228] In some embodiments, as shown in FIG4, the size of the first isolation portion 42 gradually decreases in the first direction X in a direction perpendicular to the display panel 100 and away from the substrate 10, and the first direction X is parallel to the plane where the substrate 10 is located.

[0229] The direction perpendicular to the display panel 100 is the thickness direction Z. The first direction X is a direction that intersects the thickness direction Z; optionally, the first direction X is perpendicular to the thickness direction Z. In the direction parallel to the thickness direction Z and away from the substrate 10, the size of the first isolation portion 42 gradually decreases in the first direction X. In other words, the cross-sectional size of the first isolation portion 42 is gradually reduced in the direction gradually away from the substrate 10. Therefore, the third orthographic projection T3 is the orthographic projection of the surface of the first isolation portion 42 facing the substrate 10 onto the substrate 10.

[0230] In some embodiments, please refer to FIG6, the third orthographic projection T3 and the second orthographic projection T2 are arranged to overlap.

[0231] Considering that the partial film structure located on the side of the first electrode layer 20 away from the substrate 10, such as the first encapsulation layer, needs to contact the sidewall of the first isolation portion 42 and extend on the sidewall of the first isolation portion 42, in order to improve the reliability of the film structure extension on the first isolation portion 42, the embodiments of this application arrange the third orthographic projection T3 and the second orthographic projection T2 to overlap, so that the orthographic projection of the sidewall of the first isolation portion 42 on the substrate 10 can be located within the second orthographic projection T2. ​​In this way, the first electrode 21 can support the first isolation portion 42 at the sidewall position, improve the flatness of the sidewall of the first isolation portion 42, reduce the risk of the first encapsulation layer breaking at the sidewall position of the first isolation portion 42, and thus improve the manufacturing yield of the display panel 100.

[0232] In some embodiments, as shown in Figures 4 and 6, the overlap width between multiple different regions of the second orthographic projection T2 of the same first electrode 21 and the third orthographic projection T3 is the same.

[0233] Considering that the third orthographic projection T3 overlaps with the second orthographic projection T2 at different positions around its periphery, the overlap width direction is not the same in different areas of the second orthographic projection T2. ​​Specifically, referring to Figure 6, the overlap width of the overlapping area formed by the second orthographic projection T2 at its edge position in the first direction X and the third orthographic projection T3 refers to the size of the overlapping area in the first direction X. The overlap width of the overlapping area formed by the second orthographic projection T2 at its edge position in the second direction Y and the third orthographic projection T3 refers to the size of the overlapping area in the second direction Y.

[0234] Furthermore, in this embodiment, in addition to adjusting the morphology of the first electrode 21, the size of the first electrode 21 is also limited, so that the overlap width of multiple different regions of the second orthographic projection T2 of the same first electrode 21 with the third orthographic projection T3 is the same. This helps to further reduce the overlap area between the second orthographic projection T2 and the third orthographic projection T3, reduce the parasitic capacitance between the first electrode 21 and the isolation structure 40, and improve the reliability of the display panel.

[0235] In some embodiments, as shown in Figures 4 and 6, the light-emitting functional layer 30 includes a plurality of first light-emitting structures 31a for emitting first color light, and the overlap width D1 of the second orthographic projection T2 and the third orthographic projection T3 of the first electrode 21 corresponding to different first light-emitting structures 31a is the same.

[0236] The first light-emitting structure 31a is a light-emitting structure 31 among a plurality of light-emitting structures 31 that is used to emit light of a specific color. The embodiments of this application do not limit the corresponding light-emitting color of the first light-emitting structure 31a. For example, the first light-emitting structure 31a can be used to emit one of red light, blue light and green light.

[0237] Based on the foregoing, at least a portion of the outer contour shape of the second orthographic projection T2 is the same as the outer contour shape of the first opening pattern K1, and the size of the second orthographic projection T2 is also positively correlated with the size of the first opening pattern K1. Furthermore, the outer contour shape of the sixth orthographic projection of the light-emitting structure 31 is also generally the same as the outer contour shape of the first opening pattern K1, and the sizes of the two are positively correlated.

[0238] Based on this, for multiple first light-emitting structures 31a of the same color, the outer contour shape and size of the second orthographic projection T2 of their corresponding different first electrodes 21 can generally remain consistent, and the shape and size of the first isolation portion 42 surrounding the multiple first light-emitting structures 31a can generally remain the same or similar. Therefore, the overlap width of the second orthographic projection T2 and the third orthographic projection T3 of the first electrodes 21 corresponding to different first light-emitting structures 31a can remain the same. This design ensures that the overlap area between the multiple first electrodes 21 and the first isolation portion 42 corresponding to different first light-emitting structures 31a is the same, thus ensuring that the isolation structure 40 has the same effect on the different first light-emitting structures 31a, resulting in consistent display effects for the first light-emitting structures 31a at different positions.

[0239] In some embodiments, please refer to FIG4, the light-emitting functional layer 30 includes a first light-emitting structure 31a for emitting a first color light and a second light-emitting structure 31b for emitting a second color light. The overlap width D1 of the second orthographic projection T2 and the third orthographic projection T3 corresponding to the first light-emitting structure 31a is different from the overlap width D2 of the second orthographic projection T2 and the third orthographic projection T3 corresponding to the second light-emitting structure 31b.

[0240] The first light-emitting structure 31a and the second light-emitting structure 31b are light-emitting structures 31 used to emit light of different colors. Exemplarily, the first light-emitting structure 31a and the second light-emitting structure 31b are used to emit different colors of light, namely red light, green light, and blue light. Since the first light-emitting structure 31a and the second light-emitting structure 31b emit different colors, they are prepared sequentially in different processes during the fabrication process. For ease of understanding, the embodiments of this application will subsequently be described using the example of the second light-emitting structure 31b being formed before the first light-emitting structure 31a.

[0241] During the fabrication process, firstly, a layered light-emitting material, electrode material, and encapsulation material are formed within all the isolation openings 41. The light-emitting material is used to form the second light-emitting structure 31b, the electrode material is used to form the second electrode 51 corresponding to the second light-emitting structure 31b, and the encapsulation material is used to form the encapsulation portion corresponding to the second light-emitting structure 31b. Then, a portion of the light-emitting material, electrode material, and encapsulation material within the isolation openings 41 is etched away, while the remaining portion of the isolation openings 41 retains the light-emitting material, electrode material, and encapsulation material to form the second light-emitting structure 31b and the second electrode 51 and encapsulation portion corresponding to the first light-emitting structure 31a. The above steps are then repeated to form the first light-emitting structure 31a and the second electrode 51 and encapsulation portion 811 corresponding to the first light-emitting structure 31a.

[0242] In the aforementioned etching process, since some of the isolation openings 41 are affected by etching, while the remaining isolation openings 41 are not, the etching medium will etch the sidewalls of the first isolation portion 42 surrounding some of the isolation openings 41, while the sidewalls of the first isolation portion 42 surrounding the remaining isolation openings 41 will not be affected by etching or will be less affected. In this case, the degree of etching on the sidewalls of the first isolation portion 42 surrounding the first light-emitting structure 31a and the second light-emitting structure 31b will differ, resulting in a difference between the overlap width of the second orthographic projection T2 and the third orthographic projection T3 corresponding to the first light-emitting structure 31a and the overlap width of the second orthographic projection T2 and the third orthographic projection T3 corresponding to the second light-emitting structure 31b.

[0243] In some optional embodiments, as shown in FIG4, if the second light-emitting structure 31b is formed before the first light-emitting structure 31a, then the overlap width D1 of the second orthographic projection T2 and the third orthographic projection T3 corresponding to the first light-emitting structure 31a is less than the overlap width D2 of the second orthographic projection T2 and the third orthographic projection T3 corresponding to the second light-emitting structure 31b.

[0244] In some embodiments, as shown in FIG3 and FIG4, the first electrode 21 includes a body portion 211 and a connecting portion 212 connected together, the substrate 10 includes a pixel circuit, and the body portion 211 is electrically connected to the pixel circuit through the connecting portion 212.

[0245] A pixel circuit is a circuit structure used to control the signal voltage within the first electrode 21. Pixel circuits can take various forms, and this application embodiment does not impose any limitations. For example, the structure of a pixel circuit can be 7T1C, meaning a single pixel circuit includes seven thin-film transistors and one storage capacitor; or the structure of a pixel circuit can be 8T2C, meaning a single pixel circuit includes eight thin-film transistors and two storage capacitors.

[0246] The first electrode 21 includes a body portion 211 and a connecting portion 212. The body portion 211 is the main component of the first electrode 21, and the orthographic projection of the light-emitting structure 31 onto the substrate 10 can overlap with the orthographic projection of the body portion 211 onto the substrate 10. The connecting portion 212 is a part of the first electrode 21 used to connect the body portion 211 to the pixel electrode. Optionally, the connecting portion 212 and the body portion 211 are an integral structure, that is, they both include the same material and are formed together in the same process.

[0247] In this embodiment, the first electrode 21 is positioned to correspond with the light-emitting structure 31 via the body portion 211, and the body portion 211 is connected to the pixel circuit via the connecting portion 212. In this way, the connection position between the pixel circuit and the first electrode 21 is not limited to the area where the light-emitting structure 31 is located, thereby reducing the difficulty of connecting the pixel circuit and the first electrode 21, and helping to reduce the difficulty of the layout of the relative position between the light-emitting structure 31 and the pixel circuit.

[0248] In some embodiments, the body portion 211 has a fifth orthographic projection T5 on the substrate 10, and the outer contour shape of the fifth orthographic projection T5 is the same as the outer contour shape of the first opening pattern K1. In FIG3, the position of the fifth orthographic projection T5 is indicated by a dashed box.

[0249] In this embodiment, since the isolation structure 40 can shield the conductor or semiconductor structure within the substrate 10, the size of the first electrode 21 can be appropriately reduced. Based on this, the fifth orthographic projection T5 is the orthographic projection of the body portion 211 onto the substrate 10. By setting the outer contour shape of the fifth orthographic projection T5 to be the same as the outer contour shape of the first opening pattern K1, the fifth orthographic projection T5 and the first opening pattern K1 can be conformally matched. This conformal design reduces the area of ​​the fifth orthographic projection T5, decreases its overlap with the first orthographic projection T1, and further reduces the parasitic capacitance between the isolation structure 40 and the body portion 211, thereby improving the reliability of their respective signal transmission.

[0250] It should be noted that the fifth orthographic projection T5 is a part of the second orthographic projection T2, and a portion of the outer contour of the fifth orthographic projection T5 also belongs to the outer contour of the second orthographic projection T2, while the remaining portion of the outer contour of the fifth orthographic projection T5 is connected to the orthographic projection of the connecting portion 212 on the substrate 10. Furthermore, the positional relationship between the connecting portion 212 and the isolation structure 40 is not limited in this embodiment. Optionally, the orthographic projection of the connecting portion 212 on the substrate 10 overlaps with the first orthographic projection T1.

[0251] In some embodiments, as shown in Figures 1 to 3, the overlap width between the fifth orthographic projection T5 and the first orthographic projection T1 is L1, where 0.6 μm ≤ L1 ≤ 2.5 μm. Optionally, L1 is one of 0.6 μm, 1 μm, 1.5 μm, 2 μm, and 2.5 μm.

[0252] In this embodiment, by setting L1 to no more than 2.5 μm, the overlap area between the isolation structure 40 and the first electrode 21 on the substrate 10 is reduced, the parasitic capacitance between them is decreased, and the reliability of their respective signal transmission is improved. Simultaneously, L1 is set to no less than 0.6 μm to meet the alignment accuracy between them, improve the positional reliability between the first electrode 21 and the corresponding light-emitting structure 31, and increase the yield of the display panel 100.

[0253] In some embodiments, as shown in Figures 4 and 6, the isolation structure 40 includes a first isolation portion 42 and a second isolation portion 43 located on the side of the first isolation portion 42 facing away from the substrate 10. The orthographic projection of the first isolation portion 42 on the substrate 10 lies within the orthographic projection of the second isolation portion 43 on the substrate 10. The overlap width between the fifth orthographic projection T5 and the orthographic projection of the first isolation portion 42 on the substrate 10 is L2, where 0 < L2 ≤ 1 μm. Optionally, L2 is one of 0.1 μm, 2 μm, 0.5 μm, 0.8 μm, and 1 μm. In Figure 5, the overlap width L2 is the distance D2 shown in the figure.

[0254] In this embodiment, considering that the first isolation portion 42 is typically the main part of the isolation structure 40 that can generate parasitic capacitance with the first electrode 21, L2 is set to no more than 0.6 μm. This reduces the overlap area between the first isolation portion 42 and the first electrode 21 on the substrate 10, lowers the parasitic capacitance between them, and improves the reliability of their respective signal transmission. Simultaneously, setting L2 to greater than 0 allows for an overlap area between the first isolation portion 42 and the first electrode 21 on the substrate 10. This ensures that, while meeting alignment accuracy requirements, the first isolation portion 42 is supported by the first electrode 21 at its sidewall position, thereby improving the flatness of the sidewall of the first isolation portion 42, increasing the fabrication reliability of the film layer structure extending from the sidewall of the first isolation portion 42, and improving the yield rate of the display panel 100.

[0255] In some embodiments, as shown in Figures 1 to 4, the fifth orthographic projection T5 includes a first straight edge B1, and the first opening pattern K1 includes a second straight edge B2, with the first straight edge B1 parallel to the second straight edge B2. Here, "parallel" in the embodiments of this application refers to the overall extension of the two structures being approximately parallel. The same principle applies to subsequent references to "parallel" in this application, and will not be repeated here.

[0256] In related technologies, the cathode in the cathode layer is usually only one and has a full-surface structure. However, in the embodiments of this application, due to the presence of the isolation structure 40, the second electrode layer 50 can include a plurality of second electrodes 51 corresponding to a plurality of isolation openings 41.

[0257] Based on this, the morphology of the isolation structure 40 in this application embodiment has been adapted so that the first opening pattern K1 includes the second straight edge B2. With the help of the design of the second straight edge B2, the second electrode 51 can contact the isolation structure 40 at the position corresponding to the second straight edge B2, thereby improving the overlap effect between the two and improving the reliability of the transmission of the corresponding signal between the isolation structure 40 and the second electrode 51.

[0258] Furthermore, the morphology of the first electrode 21 has been adjusted in this embodiment so that the fifth orthographic projection T5 includes the first straight line side B1 and the first straight line side B1 is parallel to the second straight line side B2. This helps to improve the conformal effect between the first opening pattern K1 and the fifth orthographic projection T5, thereby helping to reduce the parasitic capacitance between the first electrode 21 and the isolation structure 40.

[0259] The specific extension directions of the first straight edge B1 and the second straight edge B2 are not limited in this embodiment. Optionally, the display panel 100 also includes scan lines, with the first straight edge B1 parallel or perpendicular to the scan lines. The scan lines are trace structures used to transmit scan signals. Depending on the actual needs of the display panel, the scan lines can be parallel to or perpendicular to the first straight edge B1.

[0260] In some embodiments, as shown in Figures 1 to 3, a plurality of first opening patterns K1 include at least one first sub-opening K11, at least one second sub-opening K12, and at least one third sub-opening K13. The first sub-opening K11, the second sub-opening K12, and the third sub-opening K13 are respectively configured to correspond to light-emitting structures 31 of different colors. The plurality of first opening patterns K1 constitute repeating units F, and the plurality of repeating units F are repeatedly arranged. The repeating unit F includes a first sub-opening K11, a second sub-opening K12, and a third sub-opening K13, and the first sub-opening K11 and the second sub-opening K12 are arranged side by side in the first direction X.

[0261] The first sub-opening K11, the second sub-opening K12, and the third sub-opening K13 are respectively configured to correspond to light-emitting structures 31 of different colors. For example, the multiple light-emitting structures 31 include a first light-emitting structure 31a, a second light-emitting structure 31b, and a third light-emitting structure 31c of different colors. The orthographic projection of the first light-emitting structure 31a on the substrate 10 can overlap with the first sub-opening K11, the orthographic projection of the second light-emitting structure 31b on the substrate 10 can overlap with the second sub-opening K12, and the orthographic projection of the third light-emitting structure 31c on the substrate 10 can overlap with the third sub-opening K13.

[0262] The arrangement of multiple different first opening patterns K1 usually corresponds to the arrangement of multiple corresponding light-emitting structures 31. Furthermore, multiple adjacent light-emitting structures 31 can collectively form a pixel unit, which is the smallest repeating unit composed of multiple light-emitting structures 31, and these pixel units can be repeatedly arranged along a specific direction. Therefore, multiple first opening patterns K1 can constitute repeating units F corresponding to pixel units, and these repeating units F are repeatedly arranged.

[0263] Furthermore, the number and arrangement of the multiple light-emitting structures 31 in a single pixel unit can be consistent with the number and arrangement of the multiple first opening patterns K1 in a single repeating unit F. Based on this, the repeating unit F includes a first sub-opening K11, a second sub-opening K12, and a third sub-opening K13, with the first sub-opening K11 and the second sub-opening K12 arranged side-by-side in the first direction X. This indicates that the pixel unit includes a first light-emitting structure 31a, a second light-emitting structure 31b, and a third light-emitting structure 31c, with the first light-emitting structure 31a and the second light-emitting structure 31b arranged side-by-side in the first direction X.

[0264] Furthermore, the positional relationship between the second sub-opening K12 and the third sub-opening K13 in a single repeating unit F is not limited in this embodiment. Optionally, as shown in FIG2, in the repeating unit F, the third sub-opening K13 is located along the first direction X on the side of the second sub-opening K12 away from the first sub-opening K11, indicating that in the pixel unit, the third light-emitting structure 31c can be located along the first direction X on the side of the second light-emitting structure 31b away from the first sub-opening K11. Or, as shown in FIG8, the third sub-opening K13 is located along the second direction Y on the same side of the first sub-opening K11 and the second sub-opening K12, and the first direction X and the second direction Y intersect. That is, in the pixel unit, the third light-emitting structure 31c can be located along the second direction Y on the same side of the first light-emitting structure 31a and the second light-emitting structure 31b. Optionally, the first direction X, the second direction Y, and the thickness direction Z are arranged perpendicularly to each other.

[0265] In this embodiment of the application, depending on the actual needs, the conformal design of the second orthographic projection T2 and the first opening pattern K1 can be applied to the arrangement structure shown in Figure 2 or Figure 8. In other words, the conformal design of the second orthographic projection T2 and the first opening pattern K1 can be applied to various types of pixel arrangement structures, thereby meeting the need for reducing parasitic capacitance required by different display panels 100, and has strong flexibility and applicability.

[0266] In some embodiments, as shown in Figures 2, 3, and 8, the first opening pattern K1 includes a first side R1 parallel to the first direction X and a second side R2 parallel to the second direction Y. The second orthographic projection T2 includes a third side R3 parallel to the first direction X and a fourth side R4 parallel to the second direction Y. The first direction X intersects the second direction Y. The first straight side B1 is one of the third side R3 and the fourth side R4, and the second straight side B2 is one of the first side R1 and the second side R2.

[0267] For the two types of pixel arrangement methods mentioned above, the first opening pattern K1 can include a first side R1 and a second side R2. The first side R1 and the second side R2 are both straight sides of the first opening pattern K1, but their corresponding extension directions are not the same. The first side R1 extends along the first direction X, and the second side R2 extends along the second direction Y.

[0268] The third side R3 is a straight line structure in the second orthographic projection T2 that corresponds to the first side R1, and the fourth side R4 is a straight line structure in the second orthographic projection T2 that corresponds to the second side R2. The arrangement of the third side R3 and the fourth side R4 enables at least a part of the structure of the second orthographic projection T2 to conform to the first opening pattern K1, thereby helping to reduce the area size of the second orthographic projection T2 and reduce the parasitic capacitance between the first electrode 21 and the isolation structure 40.

[0269] As can be seen from the foregoing, due to the presence of the isolation structure 40, the second electrode layer 50 can include multiple second electrodes 51 corresponding to the multiple isolation openings 41. Based on this, in order to meet display requirements, the multiple second electrodes 51 need to be scanned and transmitted sequentially in a specific linear direction to meet the transmission requirements of the corresponding power signals.

[0270] Based on this, depending on the actual needs, the first direction X can be the scanning direction of multiple second electrodes 51. Therefore, the first side R1 is a straight line structure parallel to the scanning direction of the multiple second electrodes 51. In this design, the first side R1 can improve the signal transmission efficiency and accuracy corresponding to the multiple second electrodes 51, thereby improving the display reliability of the display panel 100. Similarly, in other cases, the second direction Y can be the scanning direction of multiple second electrodes 51. Therefore, the second side R2 is a straight line structure parallel to the scanning direction of the multiple second electrodes 51. In this design, the second side R2 can improve the signal transmission efficiency and accuracy corresponding to the multiple second electrodes 51, thereby improving the display reliability of the display panel 100.

[0271] It should be noted that the first side R1 and the second side R2 are usually arranged alternately around the center of the first opening pattern K1. For the first side R1 and the second side R2 that are closest to each other, they can be directly connected, or other straight lines or curves can be provided between them. This application embodiment does not limit this.

[0272] In some embodiments, the first opening pattern K1 further includes a first arc edge B4 connecting the first side R1 and the second side R2, and the second orthographic projection T2 further includes a second arc edge B5 connecting the third side R3 and the fourth side R4.

[0273] In this embodiment, considering that the sixth orthographic projection of the light-emitting structure 31 may include a rounded corner structure, the morphology of the isolation structure 40 and the first electrode 21 is adjusted so that the first opening pattern K1 includes a first arc edge B4 corresponding to the rounded corner structure and connecting the first side R1 and the second side R2, and the second orthographic projection T2 includes a second arc edge B5 corresponding to the rounded corner structure and connecting the third side R3 and the fourth side R4. This allows the shape of the isolation opening 41 and the first electrode 21 to further match the shape of the light-emitting structure 31, thereby improving the light emission effect of the light-emitting structure 31 and helping to reduce the parasitic capacitance between the first electrode 21 and the isolation structure 40.

[0274] In some embodiments, referring to FIG9, a plurality of first opening patterns K1 include a first sub-opening K11, a second sub-opening K12, and a third sub-opening K13. The first sub-opening K11, the second sub-opening K12, and the third sub-opening K13 are respectively configured to correspond to light-emitting structures 31 of different colors. The centers of at least two first sub-openings K11 and the centers of at least two second sub-openings K12 form a first virtual polygon N1. The center of the first sub-opening K11 is located at the first vertex of the first virtual polygon N1, and the center of the second sub-opening K12 is located at the second vertex of the first virtual polygon N1. The first vertex and the second vertex in the first virtual polygon N1 are alternately arranged, and the third sub-opening K13 is located inside the first virtual polygon N1.

[0275] The centers of at least four third sub-openings K13 form a second virtual polygon N2, with the center of the third sub-opening K13 located at the vertices of the second virtual polygon N2, and the first sub-opening K11 or the second sub-opening K12 located inside the second virtual polygon N2.

[0276] In addition to the arrangements shown in Figures 2 and 8, the multiple first opening patterns K1 can also be arranged as shown in Figure 9. In this arrangement, the centers of at least two first sub-openings K11 and the centers of at least two second sub-openings K12 form a first virtual polygon N1. Here, "center" refers to the geometric center of the corresponding structural pattern. The "first virtual polygon N1" is a fictitious polygon formed by sequentially connecting the centers of at least two first sub-openings K11 and the centers of two second sub-openings K12. The first virtual polygon N1 can be a quadrilateral, hexagon, or octagon, etc. Further, when the first virtual polygon N1 is a quadrilateral, the quadrilateral can be a rectangular structure, such as a rectangle or a square, or it can be a parallelogram other than a rectangle, or it can be a trapezoidal structure. This application embodiment does not limit this.

[0277] The third sub-opening K13 is located inside the first virtual polygon N1. The center of the third sub-opening K13 may coincide with the center of the first virtual polygon N1, or they may be offset from each other. This application embodiment does not impose any restrictions on this. Furthermore, for two adjacent first virtual polygons N1, they may share the center of a first sub-opening K11 and the center of a second sub-opening K12.

[0278] In addition to the first virtual polygon N1, the centers of at least four third sub-openings K13 can also form a second virtual polygon N2. The "second virtual polygon N2" mentioned here is a virtual quadrilateral formed by connecting the centers of the four third sub-openings K13 sequentially. The second virtual polygon N2 can be a quadrilateral, hexagon, or octagon, etc. Furthermore, when the second virtual polygon N2 is a quadrilateral, the quadrilateral can have a rectangular structure, such as a rectangle or square, or it can be a parallelogram other than a rectangle, or it can be a trapezoidal structure; this application embodiment does not impose any limitations on this.

[0279] The first sub-opening K11 or the second sub-opening K12 is located inside the second virtual polygon N2. For two adjacent second virtual polygons N2, one of the second virtual polygons N2 has the first sub-opening K11, and the other has the second sub-opening K12. Within a single second virtual polygon N2 with the first sub-opening K11, the center of the first sub-opening K11 may coincide with the center of the second virtual polygon N2, or they may be offset from each other. Similarly, within a single second virtual polygon N2 with the second sub-opening K12, the center of the second sub-opening K12 may coincide with the center of the second virtual polygon N2, or they may be offset from each other. This embodiment of the application does not impose any limitations on this.

[0280] Considering the arrangement of multiple different first opening patterns K1, which typically correspond to the arrangement of multiple light-emitting structures 31, the multiple light-emitting structures 31 may optionally include a first light-emitting structure 31a, a second light-emitting structure 31b, and a third light-emitting structure 31c. The first light-emitting structure 31a, the second light-emitting structure 31b, and the third light-emitting structure 31c are respectively configured to correspond to the first sub-opening K11, the second sub-opening K12, and the third sub-opening K13. The centers of at least two first light-emitting structures 31a and at least two second light-emitting structures 31b form a third virtual polygon. The center of the first light-emitting structure 31a is located at the third vertex of the third virtual polygon, and the center of the second light-emitting structure 31b is located at the fourth vertex of the third virtual polygon. The third and fourth vertices of the third virtual polygon are alternately arranged, and the third light-emitting structure 31c is located inside the third virtual polygon.

[0281] The centers of at least four third luminous structures 31c form a fourth virtual polygon, with the center of the third luminous structure 31c located at the vertex of the fourth virtual polygon, and the first luminous structure 31a or the second luminous structure 31b located inside the fourth virtual polygon.

[0282] In this embodiment of the application, depending on the actual needs, the conformal design of the second orthographic projection T2 and the first opening pattern K1 can also be applied to the arrangement structure shown in Figure 8. In other words, the conformal design of the second orthographic projection T2 and the first opening pattern K1 can be applied to various types of pixel arrangement structures to meet the needs of different display panels 100 to reduce parasitic capacitance, and has strong flexibility and applicability.

[0283] In some embodiments, the center of the third sub-opening K13 coincides with the center of the first virtual polygon N1; or, in the first virtual polygon N1, the center of the third sub-opening K13 is equidistant from the centers of at least two second sub-openings K12, and the center of the third sub-opening K13 is equidistant from the centers of at least two first sub-openings K11.

[0284] Considering that the relative positional relationship of the multiple light-emitting structures 31 usually corresponds to the positional relationship of the multiple first opening patterns K1, in this embodiment of the application, the center of the third light-emitting structure 31c can coincide with the center of the third virtual polygon; or, in the third virtual polygon, the center of the third light-emitting structure 31c is at the same distance from the center of at least two second light-emitting structures 31b, and the center of the third light-emitting structure 31c is at the same distance from the center of at least two first light-emitting structures 31a.

[0285] This design can reduce the risk of the distance between a single third light-emitting structure 31c and the adjacent first light-emitting structure 31a being too small or too large, and it can also reduce the risk of the distance between a single third light-emitting structure 31c and the adjacent second light-emitting structure 31b being too small or too large, thereby helping to improve the display performance of the display panel 100.

[0286] In some embodiments, as shown in Figures 9 and 10, the first opening pattern K1 includes a fifth side R5 extending along a third direction and a sixth side R6 extending along a fourth direction, with the fifth side R5 and the sixth side R6 alternating. The second orthographic projection T2 includes a seventh side R7 extending along a third direction and an eighth side R8 extending along a fourth direction, with the seventh side R7 and the eighth side R8 alternating. A plurality of third sub-openings K13 are arranged in an array along a first direction X and a second direction Y, with the first direction X, the second direction Y, the third direction, and the fourth direction intersecting in pairs.

[0287] As can be seen from the figure, in this arrangement, the first direction X and the second direction Y correspond to the two arrangement directions of multiple third sub-openings K13. For example, for a rectangular display panel 100, the first direction X and the second direction Y can be the length and width directions of the display panel 100, respectively. Further optionally, the display panel 100 also includes scan lines, with one of the first direction X and the second direction Y parallel to the scan lines and the other perpendicular to them.

[0288] For the third and fourth directions, both directions intersect with the first direction X and the second direction Y, and these two directions are set to intersect each other. Optionally, the angle between the third direction and the first direction X can be one of 30°, 45°, and 60°. Similarly, the angle between the fourth direction and the first direction X can also be one of 30°, 45°, and 60°.

[0289] Considering that in this arrangement, the sixth orthographic projection of the light-emitting structure 31 typically corresponds to a straight line structure extending along a third direction and a straight line structure extending along a fourth direction, the morphology of the isolation structure 40 and the second electrode 51 in this embodiment of the application has been adjusted so that the first opening pattern K1 includes a fifth side R5 extending along a third direction and a sixth side R6 extending along a fourth direction, with the fifth side R5 and the sixth side R6 alternating. The second orthographic projection T2 includes a seventh side R7 extending along a third direction and an eighth side R8 extending along a fourth direction, with the seventh side R7 and the eighth side R8 alternating.

[0290] In this design, the second orthographic projection T2 can be conformally aligned with the first opening pattern K1 via the seventh side R7 and the eighth side R8, thereby reducing the overlap area between the isolation structure 40 and the first electrode 21 and decreasing parasitic capacitance. Simultaneously, the shapes of the second orthographic projection T2 and the first opening pattern K1 can better match the sixth orthographic projection, thereby improving the control precision of the first electrode 21 over the light-emitting structure 31 and the positional reliability of the light-emitting structure 31 relative to the isolation opening 41, thus enhancing the light emission effect of the display panel 100.

[0291] In some embodiments, as shown in Figures 9 and 10, the second straight edge B2 extends along the first direction X, and the two fifth edges R5, the two second straight edges B2, and the two sixth edges R6 are connected end to end in sequence. The first straight edge B1 extends along the second direction Y, and the two seventh edges R7, the two first straight edges B1, and the two eighth edges R8 are connected end to end in sequence.

[0292] In this embodiment, the morphology of the isolation structure 40 is adaptively adjusted so that the first opening pattern K1 includes a second straight edge B2. The design of the second straight edge B2 allows the second electrode 51 to contact the isolation structure 40 at the position corresponding to the first connecting edge R9, thereby improving the overlap effect between the two and improving the reliability of the transmission of the corresponding signal between the isolation structure 40 and the second electrode 51.

[0293] Furthermore, the morphology of the first electrode 21 has been adjusted in this embodiment so that the fifth orthographic projection T5 includes the second straight edge B2, and the second straight edge B2 is parallel to the first straight edge B1. This helps to improve the conformal effect between the first opening pattern K1 and the fifth orthographic projection T5, thereby helping to reduce the parasitic capacitance between the first electrode 21 and the isolation structure 40.

[0294] Thirdly, please refer to FIG8. This application embodiment provides a display panel 100, which includes a substrate 10, an isolation structure 40 and a light-emitting functional layer 30. The isolation structure 40 is disposed on one side of the substrate 10 and has a plurality of isolation openings 41. The light-emitting functional layer 30 is disposed on one side of the substrate 10 and includes light-emitting structures 31 that are at least partially located within the isolation openings 41.

[0295] The isolation structure 40 has a first orthographic projection T1 on the substrate, which defines a plurality of first opening patterns K1. Each first opening pattern K1 includes a first sub-opening K11, a second sub-opening K12, and a third sub-opening K13. The first sub-opening K11, second sub-opening K12, and third sub-opening K13 are respectively configured to correspond to light-emitting structures 31 of different colors. The centers of at least two first sub-openings K11 and at least two second sub-openings K12 form a first virtual polygon N1. The center of the first sub-opening K11 is located at the first vertex of the first virtual polygon N1, and the center of the second sub-opening K12 is located at the second vertex of the first virtual polygon N1. The first and second vertices of the first virtual polygon N1 are alternately arranged, and the third sub-opening K13 is located inside the first virtual polygon N1.

[0296] Multiple first opening patterns K1 can be arranged as shown in Figure 9. In this arrangement, the centers of at least two first sub-openings K11 and the centers of at least two second sub-openings K12 form a first virtual polygon N1. Here, "center" refers to the geometric center of the corresponding structural pattern. The "first virtual polygon N1" is a fictitious polygon formed by sequentially connecting the centers of at least two first sub-openings K11 and the centers of two second sub-openings K12. The first virtual polygon N1 can be a quadrilateral, hexagon, or octagon, etc. Further, when the first virtual polygon N1 is a quadrilateral, the quadrilateral can be a rectangular structure, such as a rectangle or a square, or it can be a parallelogram other than a rectangle, or it can be a trapezoidal structure. This application embodiment does not limit this.

[0297] The third sub-opening K13 is located inside the first virtual polygon N1. The center of the third sub-opening K13 may coincide with the center of the first virtual polygon N1, or they may be offset from each other. This application embodiment does not impose any restrictions on this. Furthermore, for two adjacent first virtual polygons N1, they may share the center of a first sub-opening K11 and the center of a second sub-opening K12.

[0298] Considering the arrangement of multiple different first opening patterns K1, which typically correspond to the arrangement of multiple light-emitting structures 31, the multiple light-emitting structures 31 may optionally include a first light-emitting structure 31a, a second light-emitting structure 31b, and a third light-emitting structure 31c. The first light-emitting structure 31a, the second light-emitting structure 31b, and the third light-emitting structure 31c are respectively configured to correspond to the first sub-opening K11, the second sub-opening K12, and the third sub-opening K13. The centers of at least two first light-emitting structures 31a and at least two second light-emitting structures 31b form a third virtual polygon. The center of the first light-emitting structure 31a is located at the third vertex of the third virtual polygon, and the center of the second light-emitting structure 31b is located at the fourth vertex of the third virtual polygon. The third and fourth vertices of the third virtual polygon are alternately arranged, and the third light-emitting structure 31c is located inside the third virtual polygon.

[0299] In some embodiments, the center of the third sub-opening K13 coincides with the center of the first virtual polygon N1; or in other embodiments, in the first virtual polygon N1, the center of the third sub-opening K13 is equidistant from the centers of at least two second sub-openings K12, and the center of the third sub-opening K13 is equidistant from the centers of at least two first sub-openings K11.

[0300] Considering that the relative positional relationship of the multiple light-emitting structures 31 usually corresponds to the positional relationship of the multiple first opening patterns K1, in this embodiment of the application, the center of the third light-emitting structure 31c can coincide with the center of the third virtual polygon; or, in the third virtual polygon, the center of the third light-emitting structure 31c is at the same distance from the center of at least two second light-emitting structures 31b, and the center of the third light-emitting structure 31c is at the same distance from the center of at least two first light-emitting structures 31a.

[0301] This design can reduce the risk of the distance between a single third light-emitting structure 31c and the adjacent first light-emitting structure 31a being too small or too large, and it can also reduce the risk of the distance between a single third light-emitting structure 31c and the adjacent second light-emitting structure 31b being too small or too large, thereby helping to improve the display performance of the display panel 100.

[0302] In some embodiments, the centers of at least four third sub-openings K13 form a second virtual polygon N2, the centers of the third sub-openings K13 are located at the vertices of the second virtual polygon N2, and the first sub-opening K11 or the second sub-opening K12 is located inside the second virtual polygon N2.

[0303] In addition to the first virtual polygon N1, the centers of at least four third sub-openings K13 can also form a second virtual polygon N2. The "second virtual polygon N2" mentioned here is a virtual quadrilateral formed by connecting the centers of the four third sub-openings K13 sequentially. The second virtual polygon N2 can be a quadrilateral, hexagon, or octagon, etc. Furthermore, when the second virtual polygon N2 is a quadrilateral, the quadrilateral can have a rectangular structure, such as a rectangle or square, or it can be a parallelogram other than a rectangle, or it can be a trapezoidal structure; this application embodiment does not impose any limitations on this.

[0304] The first sub-opening K11 or the second sub-opening K12 is located inside the second virtual polygon N2. For two adjacent second virtual polygons N2, one of the second virtual polygons N2 has the first sub-opening K11, and the other has the second sub-opening K12. Within a single second virtual polygon N2 with the first sub-opening K11, the center of the first sub-opening K11 may coincide with the center of the second virtual polygon N2, or they may be offset from each other. Similarly, within a single second virtual polygon N2 with the second sub-opening K12, the center of the second sub-opening K12 may coincide with the center of the second virtual polygon N2, or they may be offset from each other. This embodiment of the application does not impose any limitations on this.

[0305] Considering the arrangement of multiple different first opening patterns K1, which usually correspond to the arrangement of multiple corresponding light-emitting structures 31, optionally, the centers of at least four third light-emitting structures 31c form a fourth virtual polygon, the center of the third light-emitting structure 31c is located at the vertex of the fourth virtual polygon, and the first light-emitting structure 31a or the second light-emitting structure 31b is located inside the fourth virtual polygon.

[0306] While the embodiments disclosed in this application are as described above, the content is merely for the purpose of facilitating understanding of this application and is not intended to limit the invention. Any person skilled in the art to which this application pertains may make any modifications and changes in form and detail of the implementation without departing from the spirit and scope disclosed in this application; however, the scope of protection of this application shall still be determined by the scope defined in the appended claims.

[0307] The above description is merely a specific embodiment of this application. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, substitutions for other connection methods described above can be made by referring to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application.

Claims

1. A display panel, comprising: substrate; A first electrode layer is disposed on one side of the substrate, and the first electrode layer includes a plurality of first electrodes disposed at intervals. An isolation structure is disposed on one side of the substrate, and the isolation structure is provided with a plurality of isolation openings, wherein the orthographic projection of the first electrode on the substrate overlaps with the orthographic projection of the isolation openings on the substrate. A light-emitting functional layer is disposed on the side of the first electrode layer opposite to the substrate, and the light-emitting functional layer includes a light-emitting structure disposed corresponding to the first electrode; The isolation structure has a first orthographic projection on the substrate, the first orthographic projection defining a plurality of first opening patterns, the first electrode has a second orthographic projection on the substrate, the first opening patterns overlap with the second orthographic projection, and at least a portion of the outer contour shape of the second orthographic projection is the same as the outer contour shape of the first opening pattern.

2. The display panel according to claim 1, wherein, The isolation structure includes a first isolation portion and a second isolation portion located on the side of the first isolation portion away from the substrate, wherein the orthographic projection of the first isolation portion on the substrate is located within the orthographic projection of the second isolation portion on the substrate; The first isolation portion has a third orthographic projection on the substrate, the third orthographic projection defining a plurality of second opening patterns, and at least a portion of the outer contour shape of the second orthographic projection is the same as the outer contour shape of the second opening pattern. The second isolation portion has a fourth orthographic projection on the substrate, the fourth orthographic projection defining a plurality of third opening patterns, and at least a portion of the outer contour shape of the second orthographic projection is the same as the outer contour shape of the third opening patterns.

3. The display panel according to claim 2, wherein, The overlap width between multiple different regions of the second orthographic projection of the same first electrode and the third orthographic projection is the same; and / or, The light-emitting functional layer includes a plurality of first light-emitting structures for emitting a first color light, wherein the overlap width of the second orthographic projection and the third orthographic projection of the first electrode corresponding to different first light-emitting structures is the same; and / or, The light-emitting functional layer includes a first light-emitting structure for emitting a first color light and a second light-emitting structure for emitting a second color light. The overlap width between the second orthographic projection and the third orthographic projection corresponding to the first light-emitting structure is different from the overlap width between the second orthographic projection and the third orthographic projection corresponding to the second light-emitting structure.

4. The display panel according to claim 2, wherein, The overlap width between multiple different regions of the second orthographic projection of the same first electrode and the fourth orthographic projection is the same; and / or, The light-emitting structure has a sixth orthographic projection on the substrate, and the light-emitting functional layer includes a plurality of first light-emitting structures for emitting a first color light. The overlap width between the sixth orthographic projection and the fourth orthographic projection of different first light-emitting structures is the same; and / or, The light-emitting functional layer includes a plurality of first light-emitting structures for emitting a first color light, wherein the overlap width of the second orthographic projection and the fourth orthographic projection of the first electrode corresponding to different first light-emitting structures is the same; and / or, The light-emitting functional layer includes a first light-emitting structure for emitting a first color light and a second light-emitting structure for emitting a second color light. The overlap width of the second orthographic projection and the fourth orthographic projection of the first electrode corresponding to the first light-emitting structure is the same as the overlap width of the second orthographic projection and the fourth orthographic projection of the first electrode corresponding to the second light-emitting structure.

5. The display panel according to claim 1, wherein, The first electrode includes a body portion and a connecting portion connected together, the substrate includes a pixel circuit, and the body portion is electrically connected to the pixel circuit through the connecting portion; The body portion has a fifth orthographic projection on the substrate, and the outer contour shape of the fifth orthographic projection is the same as the outer contour shape of the first opening pattern.

6. The display panel according to claim 5, wherein, The fifth orthographic projection includes a first straight edge, and the first opening pattern includes a second straight edge, with the first straight edge being parallel to the second straight edge.

7. The display panel according to claim 1, wherein, The light-emitting structure has a sixth orthographic projection on the substrate, and the outer contour shape of the sixth orthographic projection is the same as the outer contour shape of the corresponding first opening pattern; and / or The sixth orthographic projection includes a third straight line edge, the first opening pattern includes a second straight line edge, and the third straight line edge is parallel to the second straight line edge.

8. The display panel according to claim 1, wherein, The display panel further includes a second electrode layer disposed on the side of the light-emitting functional layer opposite to the substrate, and the second electrode layer includes a plurality of second electrodes disposed within a plurality of the isolation openings; The second electrode has a seventh orthographic projection on the substrate, and the outer contour shape of the seventh orthographic projection is the same as the outer contour shape of the corresponding first opening pattern. And / or, The seventh orthographic projection includes a fourth straight line edge, and the first opening pattern includes a second straight line edge, wherein the fourth straight line edge is parallel to the second straight line edge.

9. The display panel according to claim 1, wherein, The display panel further includes a pixel definition layer located on the side of the isolation structure facing the substrate, the pixel definition layer including a pixel defining portion and a pixel opening formed by the pixel defining portion; The outer contour shape of the pixel opening projected onto the substrate is the same as the outer contour shape of the first opening pattern. And / or, The light-emitting structure has a sixth orthographic projection on the substrate, and the outer contour shape of the sixth orthographic projection is the same as the outer contour shape of the corresponding pixel opening in the orthographic projection on the substrate.

10. The display panel according to claim 1, wherein, The first opening pattern includes multiple straight edges and a first arc edge, and two adjacent straight edges of the first opening pattern are connected by the first arc edge. The second orthographic projection includes multiple straight lines and a second circular arc, and two adjacent straight lines of the second orthographic projection are connected by the second circular arc. For the same light-emitting structure, the radius of curvature of the second arc side corresponding to the light-emitting structure may be the same as or different from the radius of curvature of the first arc side corresponding to the light-emitting structure; and / or, The light-emitting functional layer includes a first light-emitting structure and a second light-emitting structure with different light-emitting colors. The first arc edge of the first opening pattern corresponding to the first light-emitting structure has a different radius of curvature than the first arc edge of the first opening pattern corresponding to the second light-emitting structure.

11. The display panel according to claim 1, wherein, The plurality of first opening patterns include a first sub-opening, a second sub-opening, and a third sub-opening, wherein the first sub-opening, the second sub-opening, and the third sub-opening are respectively configured to correspond to the light-emitting structures of different colors; Multiple first opening patterns constitute repeating units, and multiple repeating units are arranged in a repeating manner. Each repeating unit includes at least one first sub-opening, at least one second sub-opening, and at least one third sub-opening, and the first sub-opening and the second sub-opening are arranged side by side in a first direction.

12. The display panel according to claim 11, wherein, In the repeating unit, the third sub-opening is located along the first direction on the side of the second sub-opening away from the first sub-opening; or, the third sub-opening is located along the second direction on the same side of the first sub-opening and the second sub-opening, and the first direction intersects the second direction. The first opening pattern includes a first side parallel to the first direction and a second side parallel to the second direction, the second orthographic projection includes a third side parallel to the first direction and a fourth side parallel to the second direction, and the first direction intersects the second direction; The first opening pattern further includes a first arc edge connecting the first side and the second side, and the second orthographic projection further includes a second arc edge connecting the third side and the fourth side.

13. The display panel according to claim 1, wherein, The plurality of first opening patterns include a first sub-opening, a second sub-opening, and a third sub-opening, wherein the first sub-opening, the second sub-opening, and the third sub-opening are respectively configured to correspond to the light-emitting structures of different colors; The centers of at least two first sub-openings and the centers of at least two second sub-openings form a first virtual polygon. The center of the first sub-opening is located at the first vertex of the first virtual polygon, and the center of the second sub-opening is located at the second vertex of the first virtual polygon. The first vertices and second vertices in the first virtual polygon are alternately spaced. The third sub-opening is located inside the first virtual polygon. The centers of at least four of the third sub-openings form a second virtual polygon, the centers of the third sub-openings being located at the vertices of the second virtual polygon, and the first or second sub-opening being located inside the second virtual polygon.

14. The display panel according to claim 13, wherein, The center of the third sub-opening coincides with the center of the first virtual polygon; or... In the first virtual polygon, the center of the third sub-opening is equidistant from the centers of at least two second sub-openings, and the center of the third sub-opening is equidistant from the centers of at least two first sub-openings.

15. The display panel according to claim 13, wherein, The first opening pattern includes a fifth side extending along a third direction and a sixth side extending along a fourth direction, the fifth side and the sixth side being alternately arranged; the second orthographic projection includes a seventh side extending along the third direction and an eighth side extending along the fourth direction, the seventh side and the eighth side being alternately arranged. Among them, a plurality of the third sub-openings are arranged in an array along the first direction and the second direction, and the first direction, the second direction, the third direction and the fourth direction intersect each other in pairs; The first opening pattern also includes a first connecting edge extending along the first direction, two fifth edges, two first connecting edges, and two sixth edges connected end to end in sequence; The second orthographic projection also includes a second connecting edge extending along the first direction, two seventh edges, two second connecting edges, and two eighth edges connected end to end in sequence.

16. The display panel according to claim 1, further comprising a first conductor layer disposed on the side of the first electrode layer facing the substrate, the first conductor layer comprising a first signal line; The orthographic projection of the first signal line on the substrate is located between adjacent second orthographic projections; The first electrode includes a body portion that is connected to the substrate. The body portion has a fifth orthographic projection on the substrate. The first signal line is disposed with its orthographic projection on the substrate overlapping the fifth orthographic projection.

17. The display panel according to claim 16, wherein, The fifth orthographic projection overlaps with the orthographic projection of the single first signal line on the substrate, and the fifth orthographic projection is symmetrically arranged with respect to the orthographic projection of the single first signal line on the substrate; or... The fifth orthographic projection overlaps with the orthographic projections of the plurality of first signal lines on the substrate, and the orthographic projections of the plurality of first signal lines overlapping with the fifth orthographic projection on the substrate are symmetrically arranged with respect to the central axis of the fifth orthographic projection.

18. The display panel according to claim 1, further comprising a first encapsulation layer disposed on the side of the light-emitting functional layer opposite to the substrate, the first encapsulation layer comprising an encapsulation portion disposed corresponding to the isolation opening; The outer contour shape of the encapsulation portion projected onto the substrate is the same as the outer contour shape of the first opening pattern.

19. A display panel, comprising: substrate; A first electrode layer is disposed on one side of the substrate, and the first electrode layer includes a plurality of first electrodes disposed at intervals. An isolation structure is disposed on one side of the substrate, and the isolation structure is provided with a plurality of isolation openings, wherein the orthographic projection of the first electrode on the substrate overlaps with the orthographic projection of the isolation openings on the substrate. A light-emitting functional layer is disposed on the side of the first electrode layer opposite to the substrate, and the light-emitting functional layer includes a light-emitting structure disposed corresponding to the first electrode; The isolation structure has a first orthographic projection on the substrate, the first orthographic projection defining a plurality of first opening patterns, the first electrode has a second orthographic projection on the substrate, the second orthographic projection including a first straight edge, the first opening pattern including a second straight edge, and the first straight edge being parallel to the second straight edge.

20. The display panel according to claim 19, wherein, At least a portion of the outer contour shape of the second orthographic projection is the same as the outer contour shape of the first opening pattern. The isolation structure includes a first isolation portion and a second isolation portion located on the side of the first isolation portion away from the substrate, the second isolation portion covering and extending beyond the first isolation portion; The first isolation portion has a third orthographic projection on the substrate, the third orthographic projection defining a plurality of second opening patterns, and at least a portion of the outer contour shape of the second orthographic projection is the same as the outer contour shape of the second opening pattern.

21. The display panel according to claim 20, wherein, The overlap width between multiple different regions of the second orthographic projection of the same first electrode and the third orthographic projection is the same; and / or, The light-emitting functional layer includes a plurality of first light-emitting structures for emitting a first color light, wherein the overlap width of the second orthographic projection and the third orthographic projection of the first electrode corresponding to different first light-emitting structures is the same; and / or, The light-emitting functional layer includes a first light-emitting structure for emitting a first color light and a second light-emitting structure for emitting a second color light. The overlap width of the second orthographic projection and the third orthographic projection of the first electrode corresponding to the first light-emitting structure is different from the overlap width of the second orthographic projection and the third orthographic projection of the first electrode corresponding to the second light-emitting structure.

22. The display panel according to claim 19, wherein, The first electrode includes a body portion and a connecting portion connected together, and the display panel further includes a pixel circuit, with the body portion electrically connected to the pixel circuit via the connecting portion; The body portion has a fifth orthographic projection on the substrate, and the outer contour shape of the fifth orthographic projection is the same as the outer contour shape of the first opening pattern. The fifth orthographic projection includes a first straight edge, and the first opening pattern includes a second straight edge, with the first straight edge being parallel to the second straight edge.

23. The display panel according to claim 19, wherein, The plurality of first opening patterns include a first sub-opening, a second sub-opening, and a third sub-opening, wherein the first sub-opening, the second sub-opening, and the third sub-opening are respectively configured to correspond to the light-emitting structures of different colors; Multiple first opening patterns constitute repeating units, and multiple repeating units are arranged in a repeating manner. Each repeating unit includes at least one first sub-opening, at least one second sub-opening, and at least one third sub-opening, and the first sub-opening and the second sub-opening are arranged side by side in a first direction.

24. The display panel according to claim 23, wherein, In the repeating unit, the third sub-opening is located along the first direction on the side of the second sub-opening away from the first sub-opening; or, the third sub-opening is located along the second direction on the same side of the first sub-opening and the second sub-opening, and the first direction intersects the second direction.

25. The display panel according to claim 23, wherein, The first opening pattern includes a first side parallel to the first direction and a second side parallel to the second direction, the second orthographic projection includes a third side parallel to the first direction and a fourth side parallel to the second direction, and the first direction intersects the second direction; Wherein, the first straight side is one of the third side and the fourth side, and the second straight side is one of the first side and the second side; The first opening pattern further includes a first arc edge connecting the first side and the second side, and the second orthographic projection further includes a second arc edge connecting the third side and the fourth side.

26. The display panel according to claim 19, wherein, The plurality of first opening patterns include a first sub-opening, a second sub-opening, and a third sub-opening, wherein the first sub-opening, the second sub-opening, and the third sub-opening are respectively configured to correspond to the light-emitting structures of different colors; The centers of at least two first sub-openings and the centers of at least two second sub-openings form a first virtual polygon. The center of the first sub-opening is located at the first vertex of the first virtual polygon, and the center of the second sub-opening is located at the second vertex of the first virtual polygon. The first vertices and second vertices in the first virtual polygon are alternately spaced. The third sub-opening is located inside the first virtual polygon. The centers of at least four of the third sub-openings form a second virtual polygon, the centers of the third sub-openings being located at the vertices of the second virtual polygon, and the first or second sub-opening being located inside the second virtual polygon.

27. The display panel according to claim 26, wherein, The first opening pattern includes a fifth side extending along a third direction and a sixth side extending along a fourth direction, the fifth side and the sixth side being alternately arranged; the second orthographic projection includes a seventh side extending along the third direction and an eighth side extending along the fourth direction, the seventh side and the eighth side being alternately arranged. Among them, a plurality of the third sub-openings are arranged in an array along the first direction and the second direction, and the first direction, the second direction, the third direction and the fourth direction intersect each other in pairs; Wherein, the second straight edge extends along the first direction, and the two fifth edges, the two second straight edges, and the two sixth edges are connected end to end in sequence; The first straight edge extends along the second direction, and the two seventh edges, the two first straight edges, and the two eighth edges are connected end to end in sequence.

28. A display panel, comprising: substrate; An isolation structure is disposed on one side of the substrate, and the isolation structure is provided with a plurality of isolation openings; A light-emitting functional layer is disposed on one side of the substrate, and the light-emitting functional layer includes a light-emitting structure at least partially located within the isolation opening; The isolation structure has a first orthographic projection on the substrate, and the first orthographic projection defines a plurality of first opening patterns. The plurality of first opening patterns include a first sub-opening, a second sub-opening, and a third sub-opening. The first sub-opening, the second sub-opening, and the third sub-opening are respectively configured to correspond to the light-emitting structures of different colors. The centers of at least two first sub-openings and the centers of at least two second sub-openings form a first virtual polygon. The center of the first sub-opening is located at a first vertex of the first virtual polygon, and the center of the second sub-opening is located at a second vertex of the first virtual polygon. The first vertex and the second vertex in the first virtual polygon are alternately spaced. The third sub-opening is located inside the first virtual polygon.

29. The display panel according to claim 28, wherein, The center of the third sub-opening coincides with the center of the first virtual polygon; and / or In the first virtual polygon, the center of the third sub-opening is equidistant from the centers of at least two second sub-openings, and the center of the third sub-opening is equidistant from the centers of at least two first sub-openings.

30. The display panel according to claim 28, wherein, The centers of at least four of the third sub-openings form a second virtual polygon, the centers of the third sub-openings being located at the vertices of the second virtual polygon, and the first or second sub-opening being located inside the second virtual polygon.

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