Display panel, preparation method thereof and display device

Abstract

Embodiments of the present application provide a display panel, a preparation method thereof and a display device. The display panel comprises a substrate, an array layer, a light emitting element, a first insulating structure located on a side of the array layer away from the substrate, and the first insulating structure surrounds at least part of the light emitting element. The first insulating structure comprises a first insulating part, and a projection of the first insulating part on the substrate at least partially overlaps with a projection of the array layer on the substrate. The first insulating part comprises a first side and a first bottom surface. The first side comprises a first end point and a second end point. The first end point is located on a side of the second end point away from the array layer. In a first direction, a distance between the first end point and the light emitting element is smaller than a distance between the second end point and the light emitting element. A projection of the first bottom surface on the substrate is located on a side of a projection of the first side on the substrate away from a projection of the light emitting element on the substrate. The display panel comprises the first insulating structure. The shape of the first insulating structure is adjusted to ensure the display effect of the display panel as a whole.

Description

Technical Field

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

[0002] With the continuous development of display technology, display panels have been widely used in people's production and daily life. In order to better meet people's needs, display panels can be adjusted, such as by adjusting some of the structure within the display panel, thereby improving the overall effect of the display panel. Summary of the Invention

[0003] This invention provides a display panel and its manufacturing method, as well as a display device. By adjusting the first insulating structure in the display panel, the overall display effect of the display panel is improved.

[0004] In a first aspect, embodiments of the present invention provide a display panel, comprising:

[0005] substrate;

[0006] An array layer is located on one side of the substrate;

[0007] The light-emitting element is located on the side of the array layer away from the substrate;

[0008] A first insulating structure is located on the side of the array layer away from the substrate, and the first insulating structure surrounds at least a portion of the light-emitting element; the first insulating structure includes a first insulating portion, the orthographic projection of the first insulating portion onto the substrate at least partially overlapping the orthographic projection of the array layer onto the substrate;

[0009] The first insulating portion includes a first side surface and a first bottom surface. The first side surface includes a first end point and a second end point. The first end point is located on the side of the second end point away from the array layer. Along the first direction, the distance between the first end point and the light-emitting element is smaller than the distance between the second end point and the light-emitting element. The first bottom surface is connected to the second end point, and the orthographic projection of the first bottom surface onto the substrate is located on the side of the first side surface onto the substrate away from the orthographic projection of the light-emitting element onto the substrate.

[0010] Wherein, the first direction is parallel to the plane where the substrate is located.

[0011] Secondly, embodiments of the present invention provide a method for manufacturing a display panel, comprising:

[0012] Provide substrate;

[0013] An array layer is fabricated, the array layer being located on one side of the substrate;

[0014] The light-emitting element is transferred, and the light-emitting element is located on the side of the array layer away from the substrate;

[0015] A first insulating structure is fabricated, the first insulating structure being located on the side of the array layer away from the substrate, and the first insulating structure surrounding at least a portion of the light-emitting element; the first insulating structure includes a first insulating portion, the orthographic projection of the first insulating portion onto the substrate at least partially overlapping the orthographic projection of the array layer onto the substrate; wherein, the first insulating portion includes a first side surface and a first bottom surface, the first side surface including a first endpoint and a second endpoint, the first endpoint being located on the side of the second endpoint away from the array layer, and along a first direction, the distance between the first endpoint and the light-emitting element is less than the distance between the second endpoint and the light-emitting element; the first bottom surface is connected to the second endpoint, and the orthographic projection of the first bottom surface onto the substrate is located on the side of the orthographic projection of the first side surface onto the substrate away from the orthographic projection of the light-emitting element onto the substrate, wherein the first direction is parallel to the plane of the substrate.

[0016] Thirdly, embodiments of the present invention provide a display device, including the display panel described in the first aspect.

[0017] This invention provides a display panel in which light-emitting elements are located on the side of the array layer away from the substrate, and a first insulating structure is located on the same side of the array layer away from the substrate, surrounding at least a portion of the light-emitting elements. The first insulating structure includes a first insulating portion, which comprises a first side surface and a first bottom surface. A first endpoint of the first side surface is located on the side of the second endpoint away from the array layer, and along a first direction, the distance between the first endpoint and the light-emitting element is smaller than the distance between the second endpoint and the light-emitting element. Simultaneously, the first bottom surface and the second endpoint are connected, and along the thickness direction of the display panel, the orthographic projection of the first bottom surface is further away from the orthographic projection of the light-emitting element than the orthographic projection of the first side surface. The display panel provided by this invention, by adjusting the shape of the first insulating structure, can help ensure the overall display effect of the display panel, and the shape adjustment of the first insulating structure can be achieved through adjustments in the manufacturing process of the display panel.

[0018] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of exemplary embodiments of the present invention, the accompanying drawings used in describing the embodiments are briefly introduced below. Obviously, the accompanying drawings described are only a portion of the drawings of the embodiments to be described in this invention, and not all of the drawings. For those skilled in the art, other drawings can be obtained from these drawings without any creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the first type of display panel provided in an embodiment of the present invention;

[0021] Figure 2 yes Figure 1 A schematic diagram of the first type of cross-section along section line A-A';

[0022] Figure 3 yes Figure 1 A schematic diagram of the second type of cross section along section line A-A';

[0023] Figure 4 yes Figure 1 A schematic diagram of the third type of cross section along section line A-A';

[0024] Figure 5 yes Figure 1 A schematic diagram of the fourth cross section along section line A-A';

[0025] Figure 6 yes Figure 1 A schematic diagram of the fifth type of cross-section along section line A-A';

[0026] Figure 7 yes Figure 1 A schematic diagram of the sixth type of cross section along section line A-A';

[0027] Figure 8 yes Figure 1 A schematic diagram of the seventh type of section along the central section line A-A';

[0028] Figure 9 yes Figure 1 A schematic diagram of the eighth section along the central section line A-A';

[0029] Figure 10 yes Figure 1 A schematic diagram of the ninth cross section along the central section line A-A';

[0030] Figure 11 yes Figure 1 A schematic diagram of the tenth section along the central section line A-A';

[0031] Figure 12 This is a cross-sectional schematic diagram of the first type of first insulation structure provided in the embodiments of the present invention;

[0032] Figure 13 This is a cross-sectional schematic diagram of the second type of first insulation structure provided in the embodiments of the present invention;

[0033] Figure 14 This is a cross-sectional schematic diagram of the third type of first insulation structure provided in the embodiments of the present invention;

[0034] Figure 15 yes Figure 1 A schematic diagram of the eleventh section along the central section line A-A';

[0035] Figure 16 yes Figure 1 A schematic diagram of the first type of cross section along section line B-B';

[0036] Figure 17 yes Figure 1 A schematic diagram of the second type of cross section along section line B-B';

[0037] Figure 18 yes Figure 1 A schematic diagram of the third type of cross section along section line B-B';

[0038] Figure 19 This is a schematic diagram of the structure of the second type of display panel provided in an embodiment of the present invention;

[0039] Figure 20 yes Figure 19 A schematic diagram of the first type of cross-section along the central section line C-C';

[0040] Figure 21 yes Figure 19 A schematic diagram of the second type of cross section along the central section line C-C';

[0041] Figure 22 yes Figure 19 A schematic diagram of the third type of cross section along the central section line C-C';

[0042] Figure 23 This is a top view of a first metal trace portion provided in an embodiment of the present invention;

[0043] Figure 24 This is a schematic diagram of the manufacturing process of the first type of display panel provided in the embodiments of the present invention;

[0044] Figure 25 This is a schematic diagram of the manufacturing process of the second type of display panel provided in this embodiment of the invention;

[0045] Figure 26 This is a schematic diagram of the structure of a display device provided in an embodiment of the present invention. Detailed Implementation

[0046] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0047] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a system, product, or device comprising a series of units is not necessarily limited to those steps or units explicitly listed, but may include other units not explicitly listed or inherent to such products or devices.

[0048] Figure 1 This is a schematic diagram of the structure of the first type of display panel provided in an embodiment of the present invention. Figure 2 yes Figure 1 A schematic diagram of the first type of cross-section along section line A-A'. Figure 3 yes Figure 1 A schematic diagram of the second type of cross-section along section line A-A'. Figure 4 yes Figure 1 A schematic diagram of the third section along section line A-A', see reference. Figures 1 to 4As shown, an embodiment of the present invention provides a display panel 10, which includes: a substrate 100; an array layer 200 located on one side of the substrate 100; a light-emitting element 300 located on the side of the array layer 200 away from the substrate 100; and a first insulating structure 410 located on the side of the array layer 200 away from the substrate 100, and the first insulating structure 410 surrounds at least a portion of the light-emitting element 300; the first insulating structure 410 includes a first insulating portion 411, the orthographic projection of the first insulating portion 411 onto the substrate 100 at least partially overlapping the orthographic projection of the array layer 200 onto the substrate 100; wherein, the first insulating portion 411 includes The first side surface 411b and the first bottom surface 411a, the first side surface 411b includes a first endpoint a1 and a second endpoint a2, the first endpoint a1 is located on the side of the second endpoint a2 away from the array layer 200, along the first direction X, the distance between the first endpoint a1 and the light-emitting element 300 is smaller than the distance between the second endpoint a2 and the light-emitting element 300; the first bottom surface 411a is connected to the second endpoint a2, and the orthographic projection of the first bottom surface 411a onto the substrate 100 is located on the side of the orthographic projection of the first side surface 411b onto the substrate 100 away from the orthographic projection of the light-emitting element 300 onto the substrate 100; wherein, the first direction X is parallel to the plane where the substrate 100 is located.

[0049] The display panel 10 includes a substrate 100, an array layer 200 located on one side of the substrate 100, and light-emitting elements 300, wherein the light-emitting elements 300 are located on the side of the array layer 200 away from the substrate 100. The array layer 200 may include pixel circuits, which are electrically connected to the light-emitting elements 300 and are used to drive the light-emitting elements 300 to emit light and display, thereby realizing the display function of the display panel 10. Further, the light-emitting elements 300 may include red, blue, and green light-emitting elements, etc. The pixel circuits drive the light-emitting elements 300 of different colors to emit light and display, thereby achieving a color display effect of the display panel 10.

[0050] For example, refer to Figures 2 to 4 As shown, array layer 200 is illustrated using pixel circuit 210 as an example. Pixel circuit 210 includes at least one transistor. The specific type and number of transistors are not limited in this embodiment, and the type of pixel circuit 210 can be adaptively adjusted according to actual needs. Optionally, refer to... Figures 2 to 4 As shown, the array layer 200 includes multiple stacked metal layers and insulating layers. Further, referring to... Figure 2As shown, taking transistor 211, which is electrically connected to the light-emitting element 300 in pixel circuit 210, as an example, transistor 211 includes an active layer 210a, a gate 210b, a source 210c, and a drain 210d, etc. Due to the specific types of metal and insulating film layers in array layer 200, they are not shown individually here. The light-emitting element 300 is electrically connected to transistor 211 through connection unit 210e, thus realizing the electrical connection between pixel circuit 210 and light-emitting element 300.

[0051] Optionally, the array layer 200 may also include a driving circuit electrically connected to the pixel circuit, or a signal line electrically connected to the pixel circuit, etc., without being specifically limited based on the specific type of structure in the array layer 200.

[0052] Furthermore, the display panel 10 also includes a first insulating structure 410. The first insulating structure 410 and the light-emitting element 30 are both located on the side of the array layer 200 away from the substrate 100. The first insulating structure 410 is disposed around at least a portion of the light-emitting element 300. This can be understood as the first insulating structure 410 surrounding a portion of a light-emitting element 300, or it can be disposed around the entire circumference of the light-emitting element 300. Further, the first insulating structure 420 can also be disposed between adjacent light-emitting elements 300, covering redundant metal pads. The specific placement of the first insulating structure 420 around the light-emitting element 300 can be flexibly adjusted. Specifically, refer to... Figures 2 to 4 As shown, the first insulating structure 410 includes a first insulating portion 411. The orthographic projection of the first insulating portion 411 onto the substrate 100 at least partially overlaps with the orthographic projection of the array layer 200 onto the substrate 100, that is, along the thickness direction h of the display panel 10, the first insulating portion 411 at least partially covers the array layer 200. (Reference) Figure 2 and Figure 3 As shown, along the thickness direction h of the display panel 10, the orthographic projection of the array layer 200 not covered by the light-emitting element 300 onto the substrate 100 is greater than the orthographic projection of the first insulating portion 411 onto the substrate 100. That is, there is a portion of the array layer 200 that is neither covered by the first insulating portion 411 nor by the light-emitting element 300. (Reference) Figure 4 As shown, along the thickness direction h of the display panel 10, the orthogonal projection of the array layer 200 not covered by the light-emitting element 300 onto the substrate 100 is smaller than the orthogonal projection of the first insulating portion 411 onto the substrate 100. That is, if the array layer 200 is not covered by the first insulating portion 411, it is covered by the light-emitting element 300. Figures 2 to 4 The positional relationship between the first insulating section 411 and the array layer 200 is diverse and can be adaptively adjusted according to the actual needs of the display panel 10.

[0053] For details, please refer to Figures 2 to 4 As shown, the first insulating portion 411 includes a first side surface 411b and a first bottom surface 411a, wherein the orthographic projection of the first bottom surface 411a onto the substrate 100 is located on the side of the first side surface 411b that is farther from the orthographic projection of the light-emitting element 300 onto the substrate 100, that is, the side of the first bottom surface 411a that is farther from the light-emitting element 300 compared to the side surface 411b. Further, the first side surface 411b includes a first endpoint a1 and a second endpoint a2, wherein the first endpoint a1 is located on the side of the second endpoint a2 that is farther from the array layer 200. Meanwhile, the first bottom surface 411a is connected to the second endpoint a2, that is, the first bottom surface 411a is connected to the endpoint of the first side surface 411b that is close to the substrate 100. Then, the first side surface 411b and the first bottom surface 411a in the first insulating portion 411 are equivalent to forming at least part of the structural surface of a "concave" structure. The first bottom surface 411a is the bottom surface of the "concave" structure, and the first side surface 411b is a side surface of the "concave" structure. This side surface is close to the side of the light-emitting element 300, so that the first insulating structure 410 surrounds at least part of the light-emitting element 300.

[0054] Furthermore, along the first direction X, the distance between the first endpoint a1 and the light-emitting element 300 is smaller than the distance between the second endpoint a2 and the light-emitting element 300. That is, the closer the first side surface 411b is to the first endpoint a1, the smaller the distance between it and the light-emitting element 300; the closer the first side surface 411b is to the second endpoint a2, the larger the distance between it and the light-emitting element 300. This reflects the overall arrangement trend of the first side surface 411b and further reflects the morphology of the first insulating portion 411 surrounding the light-emitting element 300.

[0055] Further reference Figure 1 , Figure 2 and Figure 4 As shown, the first insulating portion 411 in the display panel 10 is made of a light-blocking material. The first insulating portion 411 surrounds the light-emitting element 300, which can avoid color crosstalk between different light-emitting elements 300 and further prevent light leakage in the array layer 200, thereby improving the overall display effect of the display panel 10. Further, refer to... Figure 3 As shown, the first bottom surface 411a and the first side surface 411b in the first insulating portion 411 are equivalent to at least part of a "concave" structure. The groove formed by the first insulating portion 411 and the adjacent insulating structure can be filled with light-blocking material, which can also avoid color crosstalk between different light-emitting elements 300 and improve the overall display effect of the display panel 10.

[0056] Furthermore, the morphology adjustment of the first insulating portion 411 can be achieved by adjusting the manufacturing process of the display panel 10. In the prior art, the light-emitting element is transferred after the insulating structure is prepared. The insulating structure can be understood as a light-blocking structure, used to avoid crosstalk between adjacent light-emitting elements. Moreover, during the preparation of the insulating structure, some space needs to be reserved around the light-emitting element to ensure the transfer accuracy during the light-emitting element transfer and the alignment accuracy of the exposure machine during the preparation of the insulating structure. The resulting display panel is not conducive to improving the pixel density of the display panel and cannot further improve the display effect. Furthermore, in the prior art, the sides of the insulating structure do not cover the sides of the light-emitting element, meaning there is a gap between the light-emitting element and the insulating structure. This gap exposes part of the metal layer, reflecting light and affecting the overall display effect. Simultaneously, the insulating structure of the display panel is located between adjacent light-emitting elements, and its general structural shape is a trapezoidal or rectangular structure, meaning the shape of the insulating structure is relatively simple.

[0057] Specifically, in the fabrication process of the display panel 10 provided in this embodiment of the invention, after the array layer 200 and the light-emitting element 300 are fabricated on the substrate 100 (the fabrication of the light-emitting element 300 can be achieved by transferring the light-emitting element 300 to the side of the array layer 200 away from the substrate 100 via a transfer substrate), the first insulating structure 410 is then fabricated. Specifically, an insulating material is coated onto the display panel 10 and then cured and etched. During the curing and etching process, a corresponding recessed structure is formed. The recessed structure can partially correspond to the first bottom surface 411a and the first side surface 411b in the first insulating portion 411. The formation of the recessed structure can be determined according to the properties of the insulating material, for example, referring to... Figures 2 to 4 As shown, the first insulating structure 410 contains a colored solvent before curing. This colored solvent is fluid and forms corresponding slope depressions during curing, thereby forming the corresponding first insulating portion 411, and the corresponding first bottom surface 411a and first side surface 411b. It should be noted that the melt flow of the first insulating portion 411 is similar to a capillary phenomenon; if it encounters an obstacle, it will automatically extend upwards along the obstacle. (Reference) Figure 2 and Figure 4 As shown, if the colored solvent is black, then the first insulating structure 410 is as shown in the figure; Reference Figure 3As shown, if the colored solvent is white, the first insulating structure 410 is as shown in the figure. That is, depending on the different display panels 10, the first insulating structure 410 can be directly prepared with a light-blocking material, or a light-blocking material can be filled into the first insulating structure 410 to ensure the overall display effect of the display panel 10. By advancing the transfer process of the light-emitting element 300 to the preparation process of the insulating structure, the morphology of the first insulating structure 410 can be adjusted to reflect the morphological diversity of the first insulating structure 410, improve the anti-crosstalk effect of the display panel 10, enhance the diversity of the display panel 10, and ensure the display effect of the display panel 10. Furthermore, the first side 411b of the first insulating portion 411 in the first insulating structure 410 is attached to the side of the light-emitting element 300, that is, there is no gap between the first insulating structure 410 and the light-emitting element 300. The first insulating structure 410 can block crosstalk between the side light of the light-emitting element 300, further ensuring the display effect of the display panel 10. At the same time, there is no need to reserve extra space to improve the alignment accuracy of the light-emitting element 300 transfer, or to reserve extra space to provide the alignment accuracy of the exposure machine during the preparation of the insulating structure. There is enough space to set more light-emitting elements 300, increase the pixel distribution density of the display panel 10, and further improve the overall display effect of the display panel 10.

[0058] In summary, the embodiments of the present invention provide a display panel. By adjusting the shape of the first insulating structure, the overall display effect of the display panel can be guaranteed. The shape adjustment of the first insulating structure can be achieved by adjusting the manufacturing process during the manufacturing of the display panel.

[0059] Continue to refer to Figures 1 to 3 As shown, the first insulating structure 410 also includes a second insulating portion 412, which is located on the side of the first insulating portion 411 away from the light-emitting element 300.

[0060] The second insulating portion 412 includes a second side surface 412b and a second bottom surface 412a. The second side surface 412b includes a third endpoint a3 and a fourth endpoint a4. The third endpoint a3 is located on the side of the fourth endpoint a4 away from the array layer 200. Along the first direction X, the distance between the third endpoint a3 and the light-emitting element 300 is greater than the distance between the fourth endpoint a4 and the light-emitting element 300. The second bottom surface 412a is connected to the fourth endpoint a4, and the orthographic projection of the second bottom surface 412a onto the substrate 100 is located on the side of the orthographic projection of the second side surface 412b onto the substrate 100 that is close to the orthographic projection of the light-emitting element 300 onto the substrate 100. The first bottom surface 411a and the second bottom surface 412a are coplanar.

[0061] For details, please refer to Figure 2 and Figure 3As shown, the first insulating structure 410 includes a first insulating portion 411 and a second insulating portion 412. The second insulating portion 412 is located on the side of the first insulating portion 411 away from the light-emitting element 300. For example, refer to Figure 2 As shown, the orthographic projection of the first insulating portion 411 onto the substrate 100 is b1, the orthographic projection of the light-emitting element 300 onto the substrate 100 is b2, and the orthographic projection of the second insulating portion 412 onto the substrate 100 is b3. Figure 2 As can be seen, along the first direction X, b1 is closer to b2 than b3.

[0062] Further reference Figure 2 and Figure 3 As shown, the second insulating portion 412 includes a second side surface 412b and a second bottom surface 412a, wherein the orthographic projection of the second bottom surface 412a onto the substrate 100 is located on the side of the orthographic projection of the second side surface 412b onto the substrate 100 that is closer to the orthographic projection of the light-emitting element 300 onto the substrate 100, that is, the side of the second bottom surface 412a that is closer to the light-emitting element 300 is closer to the second side surface 412b than the side surface 412b. Further, the second side surface 412b includes a third endpoint a3 and a fourth endpoint a4, wherein the third endpoint a3 is located on the side of the fourth endpoint a4 that is farther from the array layer 200. Simultaneously, the second bottom surface 412a is connected to the fourth endpoint a4, that is, the second bottom surface 412a is connected to the endpoint of the second side surface 412b closest to the substrate 100. Therefore, the second side surface 412b and the second bottom surface 412a in the second insulating portion 412 also form at least a portion of the structural surface of a "concave" structure. The second bottom surface 412a is the bottom surface of the "concave" structure, and the second side surface 412b is one side surface of the "concave" structure. It should be noted that the molten flow of the first insulating portion 411 and the second insulating portion 412 is similar to a capillary phenomenon; if it encounters an obstacle, it will automatically extend upwards along the obstacle, thus forming a "concave" structure.

[0063] Furthermore, along the first direction X, the distance between the fourth endpoint a4 and the light-emitting element 300 is smaller than the distance between the third endpoint a3 and the light-emitting element 300. That is, the closer the second side 412b is to the third endpoint a3, the greater the distance between it and the light-emitting element 300; the closer the second side 412b is to the fourth endpoint a4, the smaller the distance between it and the light-emitting element 300. This reflects the overall setting trend of the second side 412b.

[0064] Furthermore, the first insulating portion 411 and the second insulating portion 412 are connected at the bottom surface. Specifically, the first bottom surface 411a and the second bottom surface 412a are coplanar. Therefore, the first insulating portion 411 and the second insulating portion 412 essentially form a complete "concave" structure. The bottom surface of this "concave" structure is the first bottom surface 411a and the second bottom surface 412a, and the sides are the first side surface 411b and the second side surface 412b. Considering the arrangement trend of the first side surface 411b and the second side surface 412b, the width of this "concave" structure along the first direction near the array layer 200 is smaller than the width away from the array layer 200. This further demonstrates the versatility of the shape adjustment of the first insulating structure 410.

[0065] Further reference Figure 1 and Figure 2 As shown, both the first insulating portion 411 and the second insulating portion 412 include a light-blocking structure.

[0066] For details, please refer to Figure 2 As shown, the first insulating structure 410 includes a first insulating portion 411 and a second insulating portion 412. The first insulating portion 411 includes a light-blocking structure, and the second insulating portion 412 also includes a light-blocking structure. That is, the first insulating structure 410 as a whole is a light-blocking structure made of a light-blocking material. The light-blocking structure can block the transmission of light. The first insulating structure 410 is arranged around the light-emitting element 300, which can avoid color crosstalk between light-emitting elements 300 of different colors, thereby ensuring the overall display effect of the display panel 10. Furthermore, since both the first insulating portion 411 and the second insulating portion 412 are light-blocking structures, meaning they are both made of a light-blocking material, the first insulating portion 411 and the second insulating portion 412 can be understood as an integral structure.

[0067] Specifically, before the first insulating structure 410 is cured and etched to form the first insulating portion 411 and the second insulating portion 412, the insulating material coated on the side of the array layer 200 or the light-emitting element 300 away from the substrate 100 includes a colored solvent, such as a black solvent. The solid content of the black solvent can be below 20%, for example, 13.5%. The specific solid content value is not limited and can be adjusted adaptively according to actual needs. For example, the first insulating portion 411 and the second insulating portion 412 are formed after curing and etching of the insulating material containing a 13.5% solid content colored solvent. The morphology of the first insulating portion 411 and the second insulating portion 412 can be determined based on the fluidity of the colored solvent, forming a corresponding morphology during the curing of the insulating material. Specifically, the adjustment of the specific morphology of the first insulating portion 411 and the second insulating portion 412 can be achieved due to different solid contents or by adjusting process parameters during curing or etching. This embodiment of the invention does not provide specific examples of the parameter settings.

[0068] Continue to refer to Figure 1 and Figure 2 As shown, along the thickness direction h of the display panel, the first endpoint a1 and the third endpoint a3 are flush.

[0069] For details, please refer to Figure 2 As shown, along the thickness direction h of the display panel 10, the first endpoint a1 and the third endpoint a3 are flush, meaning the distance between the first endpoint a1 and the substrate 100 is the same as or similar to the distance between the third endpoint a3 and the substrate 100. With the first bottom surface 411a and the second bottom surface 412a flush, and the first endpoint a1 and the third endpoint a3 also flush, the first insulating portion 411 and the second insulating portion 412 have the same structural height. This results in a more regular overall shape of the first insulating structure 410, simplifying the fabrication process of the first insulating structure 410 and reducing the overall manufacturing cost of the display panel 10.

[0070] Figure 5 yes Figure 1 A schematic diagram of the fourth type of cross-section along section line A-A'. Figure 6 yes Figure 1 A schematic diagram of the fifth type of section along section line A-A', see reference. Figure 1 , Figure 5 and Figure 6 As shown, along the thickness direction h of the display panel 10, the first endpoint a1 is located on the side of the third endpoint a3 that is close to the substrate 100, or the third endpoint a3 is located on the side of the first endpoint a1 that is close to the substrate 100.

[0071] For details, please refer to Figure 5 and Figure 6As shown, the first insulating portion 411 and the second insulating portion 412 in the first insulating structure 410 can be differentiated to ensure different display effects of the display panel 10. Specifically, the different display effects of the display panel 10 can be improved by adjusting the difference between the third endpoint a3 and the first endpoint a1.

[0072] Among them, reference Figure 5 As shown, along the thickness direction h of the display panel 10, the first endpoint a1 can be located on the side of the third endpoint a3 closer to the substrate 100, that is, the distance between the first endpoint a1 and the substrate 100 is smaller than the distance between the third endpoint a3 and the substrate 100. Figure 5 The first endpoint a1 and the third endpoint a3 have a thickness difference h1 in the thickness direction h of the display panel 10. Optionally, if the display panel 10 is a transparent display panel, a transparent insulating material can be provided between adjacent light-emitting elements 300. The transparent insulating material can serve as the display light-transmitting area of ​​the display panel 10, and the area where the light-emitting elements 300 are located serves as the display area of ​​the display panel 10. It is understood that when the light from the light-emitting element 300 enters the display light-transmitting area, the light will be reflected in the display light-transmitting area, thereby forming a halo. The first insulating portion 411 can be located on the side closer to the light-emitting element 300, and the second insulating portion 412 can be located on the side closer to the transparent insulating material. In this way, by adjusting the third endpoint a3 to be higher than the first endpoint a2, it is possible to more effectively prevent light from entering the light-transmitting area and generating a halo, thereby ensuring the display effect of the display panel 10. This can be understood as the height of the first side 411b in the first insulating portion 411 being less than the height of the second side 412b in the second insulating portion 412. By setting the height of the second side 412b to be higher, the side light of the light-emitting element 300 can be reduced or even avoided from displaying the light-transmitting area, thus reducing or even avoiding halo phenomena. At the same time, the lower height of the first side 411b can save material in the first insulating portion 411. Furthermore, when the height of the first side 411b is less than the height of the light-emitting element 300, the effect of a wide viewing angle can be further improved.

[0073] Further reference Figure 6 As shown, along the thickness direction h of the display panel 10, the first endpoint a1 can be located on the side of the third endpoint a3 away from the substrate 100, and the distance between the first endpoint a1 and the substrate 100 is greater than the distance between the third endpoint a3 and the substrate 100. Figure 6There is a thickness difference h2 between the first endpoint a1 and the third endpoint a3 in the thickness direction h of the display panel 10. Optionally, if the display panel 10 is a transparent display panel, a transparent insulating material can be provided between adjacent light-emitting elements 300. The transparent insulating material can serve as the light-transmitting area of ​​the display panel 10, and the area where the light-emitting elements 300 are located serves as the display area of ​​the display panel 10. In this way, the first endpoint a1 is adjusted to be higher than the third endpoint a3. When the transparent insulating material is an organic material, the organic material has fluidity during the preparation process. If the third endpoint a3 is higher, that is, the height of the transparent insulating material is higher, it is not conducive to the leveling of the transparent insulating material, which increases the difficulty of preparation. Therefore, adjusting the height of the third endpoint a3 to be lower than the height of the first endpoint a1, combined with the process preparation of the display panel 10, can reduce the difficulty of the process preparation. It can be understood that the height of the first side surface 411b in the first insulating portion 411 is greater than the height of the second side surface 412b in the second insulating portion 412. Furthermore, if the first endpoint a1 of the first insulating portion 411 is at the same height as the light-emitting element 300, it can ensure the blocking of light from the side of the light-emitting element 300, avoiding crosstalk between different light-emitting elements 300, thereby ensuring the overall display effect of the display panel 10. In general, the first insulating structure 410 is used to avoid crosstalk between light-emitting elements 300, so it is set between adjacent light-emitting elements 300. At the same time, in order to ensure the display effect of the display panel 10, the light emitted normally by the light-emitting element 300 should not be blocked by the first insulating structure 410. Therefore, during the preparation of the first insulating structure 410, the height of the first insulating portion 411 in the first insulating structure 410 can be adjusted to be less than the height of the light-emitting element 300, which is conducive to achieving a wide viewing angle display effect of the light-emitting element 300. At the same time, adjusting the height of the second insulating portion 412 can block some light to prevent crosstalk; or the height of the first insulating portion 411 can be adjusted to be flush with the height of the light-emitting element 300, thereby ensuring a better anti-crosstalk effect. Therefore, during the manufacturing process, the height of the first insulating portion 411 in the first insulating structure 410 will not exceed the height of the light-emitting element 300, to avoid the first insulating portion 411 blocking the normally output light, thereby ensuring the overall display effect of the display panel 10. It should be noted that... Figure 5 and Figure 6 The array layer 200 is shown in a simplified manner to clearly illustrate the structural schematic diagram of the first insulating structure 410. The following diagrams are the same and will not be repeated.

[0074] Figure 7 yes Figure 1 A schematic diagram of the sixth type of section along section line A-A', see reference. Figure 1 and Figure 7 As shown, along the thickness direction h of the display panel 10, the first endpoint a1 is located on the side of the light-emitting element 300 near the substrate 100.

[0075] In particular, along the thickness direction h of the display panel 10, the distance between the first endpoint a1 and the substrate 100 and the distance between the light-emitting element 300 and the substrate 100 in the first insulating portion 411 can be set differently, thereby improving the display effect of the display panel 10.

[0076] For details, please refer to Figure 7 As shown, along the thickness direction h of the display panel 10, the first endpoint a1 is located on the side of the light-emitting element 300 closer to the substrate 100, that is, the distance between the first endpoint a1 and the substrate 100 is less than the distance between the surface of the light-emitting element 300 away from the substrate 100 and the substrate 100. Figure 7 The example shown is that there is a thickness difference h3 between the first endpoint a1 and the surface of the light-emitting element 300 away from the substrate 100 in the thickness direction h of the display panel 10. It can be understood that the height of the first side 411b in the first insulating portion 411 is less than the height of the light-emitting element 300, which can ensure that the light-emitting element 300 has a wide viewing angle light emission effect, thereby improving the overall display effect of the display panel 10.

[0077] Optional, see reference Figure 7 As shown, the height of the first endpoint a1 is adjusted to be lower than the height of the light-emitting element 300, so that the light-emitting element 300 can emit light from part of the side, that is, to ensure that the light-emitting element 300 has a wide viewing angle light emission effect. At the same time, in order to avoid crosstalk between adjacent light-emitting elements 300, the height of the second side 412b in the second insulating portion 412 can be increased to block the light that will cause crosstalk, thus ensuring the overall display effect of the display panel 10.

[0078] refer to Figure 1 , Figure 2 , Figure 5 and Figure 7 As shown, along the thickness direction h of the display panel 10, the third endpoint a3 is located on the side of the light-emitting element 300 away from the substrate 100, or the third endpoint a3 is flush with the side of the light-emitting element 300 away from the substrate 100.

[0079] Specifically, the second insulating portion 412 in the first insulating structure 410 can be configured differently to ensure different display effects of the display panel 10. Specifically, the different display effects of the display panel 10 can be improved by adjusting the difference between the third endpoint a3 and the light-emitting element 300.

[0080] Among them, reference Figure 5As shown, along the thickness direction h of the display panel 10, the third endpoint a3 is located on the side of the light-emitting element 300 away from the substrate 100. The distance between the third endpoint a3 and the substrate 100 is greater than the distance between the surface of the light-emitting element 300 on the side away from the substrate 100 and the substrate 100. It can be understood that by adjusting the height of the third endpoint a3 to be larger, i.e., by adjusting the height of the second insulating portion 412 to be larger, the anti-crosstalk effect can be further improved. Furthermore, when the height of the first endpoint a1 is adjusted to be less than the height of the light-emitting element 300, the display effect of the light-emitting element 300 with a large viewing angle can be guaranteed. Combined with the adjustment of the height of the second insulating portion 412, the anti-crosstalk effect can be improved while maintaining a large viewing angle for the light-emitting element 300, thereby improving the overall display effect of the display panel 10.

[0081] Further reference Figure 2 and Figure 7 As shown, along the thickness direction h of the display panel 10, the third endpoint a3 is flush with the side of the light-emitting element 300 away from the substrate 100. The distance between the third endpoint a3 and the substrate 100 is equal to the distance between the surface of the light-emitting element 300 furthest from the substrate 100 and the substrate 100. By adjusting the height of the second insulating portion 412 to be the same as the height of the side of the light-emitting element 300 away from the substrate 100, the overall regularity of the first insulating structure 410 is reflected. The first insulating structure 410 can avoid crosstalk between the light-emitting elements 300, and the regularity of the structure can simplify the manufacturing process of the display panel 10 and reduce the manufacturing cost of the display panel 10.

[0082] Figure 8 yes Figure 1 The seventh section diagram along the central section line A-A' is shown below. (Continue to refer to...) Figure 1 , Figure 2 , Figures 5 to 8 As shown, along the thickness direction h of the display panel 10, the first endpoint a1 is flush with the side of the light-emitting element 300 away from the substrate 100, or the first endpoint a1 is closer to the substrate 100 relative to the side of the light-emitting element 300 away from the substrate 100.

[0083] Specifically, the second insulating portion 412 in the first insulating structure 410 can be configured differently to ensure different display effects of the display panel 10. Specifically, the different display effects of the display panel 10 can be improved by adjusting the difference between the third endpoint a3 and the light-emitting element 300.

[0084] Among them, reference Figure 2 , Figure 5 and Figure 6As shown, along the thickness direction h of the display panel 10, the first endpoint a1 is flush with the side of the light-emitting element 300 away from the substrate 100, and the distance between the first endpoint a1 and the substrate 100 is equal to the distance between the surface of the light-emitting element 300 furthest from the substrate 100 and the substrate 100. This can be understood as the height of the first side surface 411b in the first insulating portion 411 being equal to the height of the surface of the light-emitting element 300 away from the substrate 100. On one hand, by adjusting the height of the first insulating structure 410 and the light-emitting element 300 to be equal, the first insulating structure 410 maximizes the blocking of light from the side of the light-emitting element 300, thereby avoiding crosstalk between adjacent light-emitting elements 300 and ensuring the overall display effect of the display panel 10. On the other hand, if the height of the first insulating structure 410 does not exceed the height of the light-emitting element 300, the presence of the first insulating structure 410 will not affect the normal light transmission of the light-emitting element 300, thus ensuring the overall display effect of the display panel 10.

[0085] Further reference Figure 7 and Figure 8 As shown, along the thickness direction h of the display panel 10, relative to the side of the light-emitting element 300 furthest from the substrate 100, the first endpoint a1 is closer to the substrate 100. That is, the distance between the first endpoint a1 and the substrate 100 is less than the distance between the surface of the light-emitting element 300 furthest from the substrate 100 and the substrate 100. By adjusting the height of the first insulating portion 411 to be less than the height of the side of the light-emitting element 300 furthest from the substrate 100, the interference of the first insulating structure 410 with the light emission effect of the light-emitting element 300 can be avoided, thus ensuring the wide viewing angle display effect of the light-emitting element 300 and improving the overall display effect of the display panel 10.

[0086] Figure 9 yes Figure 1 The eighth section diagram along section line A-A' is shown below. (Continue to refer to...) Figure 1 and Figure 9 As shown, along the first direction X, the width of the light-emitting element 300 is L1; along the first direction X, the distance between the first endpoints a1 on both sides of the light-emitting element 300 is L2; ​​where (L2-L1)>0.

[0087] For details, please refer to Figure 9 As shown in the figure, the light-emitting element 300 is a cross-sectional schematic diagram, wherein the cross-sectional view of the light-emitting element 300 can be as follows: Figure 9 The inverted trapezoid shown can also be a regular trapezoid; the embodiments of the present invention do not specifically limit this.

[0088] Furthermore, along the first direction X, the width of the light-emitting element 300 is L1. Also along the first direction X, the distance between the first endpoints a1 on both sides of the light-emitting element 300 is L2, and L1 and L2 satisfy (L2-L1)>0. That is, along the first direction X, the openings of the first insulating distribution 411 on both sides of the light-emitting element 300 can be larger than the upper surface of the light-emitting element 300 (the surface of the light-emitting element 300 away from the substrate 100), so that the light from the light-emitting element 300 can leak out as much as possible, improve the light efficiency, and ensure the wide viewing angle display effect of the display panel 10.

[0089] Optional, Figure 10 yes Figure 1 A schematic diagram of the ninth section along section line A-A', see reference. Figure 10 As shown, the orthographic projection of the first insulating structure 410 onto the substrate 100 covers the orthographic projection of the array layer 300 onto the substrate 100, combined with... Figure 10 As shown, the orthographic projection of the first insulating structure 410 onto the substrate 100 is b5, and the orthographic projection of the array layer 300 onto the substrate 100 is b4. When the first insulating portion 411 and the second insulating portion 412 of the first insulating structure 410 are light-blocking structures, along the thickness direction h of the display panel 10, the first insulating structure 410 can cover the entire array layer 200. This avoids light crosstalk between different light-emitting elements 300 and also prevents light leakage from the metal structure in the array layer 200, thereby ensuring the overall display effect of the display panel 10.

[0090] Continue to refer to Figure 1 and Figure 3 As shown, the first insulating structure 410 also includes a first groove 414 and a third insulating portion 413. The first groove 414 is at least partially surrounded by a first side surface 411b, a first bottom surface 411a, a second side surface 412b, and a second bottom surface 412a. The third insulating portion 413 fills the first groove 414.

[0091] For details, please refer to Figure 3 As shown, the first insulating structure 410 includes a first insulating portion 411 and a second insulating portion 412. The first insulating portion 411 includes a first side surface 411b and a first bottom surface 411a, and the second insulating portion 412 includes a second side surface 412b and a first bottom surface 412a. The first side surface 411b, the first bottom surface 411a, the second side surface 412b, and the first bottom surface 412a form a first groove 414. That is, the first groove 414 is at least partially composed of the first side surface 411b, the first bottom surface 411a, the second side surface 412b, and the second bottom surface 412a.

[0092] Furthermore, the first insulating structure 410 also includes a third insulating portion 413, which fills the first groove 414. The third insulating portion 413 ensures the flatness of the overall structure of the display panel 10.

[0093] Continue to refer to Figure 1 and Figure 3 As shown, the first insulating portion 411 and / or the second insulating portion 412 include a light-reflecting structure, and the third insulating portion 413 includes a light-blocking structure.

[0094] Among them, reference Figure 3 As shown, in the first insulating structure 410, the third insulating portion 413 includes a light-blocking structure. The third insulating portion 413 is located in the first groove 414, that is, the third insulating portion 413 is located between adjacent light-emitting elements 300. The third insulating portion 413 can avoid crosstalk between different light-emitting elements 300, thereby ensuring the overall display effect of the display panel 10.

[0095] Furthermore, such as Figure 3 As shown, the first insulating portion 411 and the second insulating portion 412 may include a light-reflecting structure. That is, since the first insulating portion 411 and the second insulating portion 412 have the effect of reflecting light, they can increase the light effect in the light-emitting element 300, thereby ensuring that the light emitted by the light-emitting element 300 has a better effect and ensuring the overall display effect of the display panel 10.

[0096] Optionally, either the first insulating portion 411 or the second insulating portion 412, along with the third insulating portion 413, may serve as a light-blocking structure. For example, the first insulating portion 411 and the third insulating portion 413 may serve as light-blocking structures, while the second insulating portion 412 may serve as a light-reflecting structure; or the second insulating portion 412 and the third insulating portion 413 may serve as light-blocking structures, while the first insulating portion 411 may serve as a light-reflecting structure. These are not specifically shown in the figures. The specific structural types of the first insulating portion 411 and the second insulating portion 412 can be adapted to the actual needs of the display panel 10, and this embodiment of the invention does not impose specific limitations on this.

[0097] Figure 11 yes Figure 1 A schematic diagram of the tenth section along section line A-A', see reference. Figure 1 , Figure 3 and Figure 11 As shown, the distance between the surface of the third insulating portion 413 away from the substrate 100 and the substrate 100 is equal to the distance between the first endpoint a1 and the substrate 100; the distance between the first endpoint a1 and the substrate 100 is less than or equal to the distance between the third endpoint a3 and the substrate 100.

[0098] The third insulating portion 413 is filled in the first groove 414. Therefore, the distance between the surface of the third insulating portion 413 away from the substrate 100 and the substrate does not exceed the distance between the first endpoint a1 and the substrate 100. At the same time, the distance between the surface of the third insulating portion 413 away from the substrate 100 and the substrate does not exceed the distance between the third endpoint a3 and the substrate 100.

[0099] Further reference Figure 3 As shown, the distance between the surface of the third insulating portion 413 away from the substrate 100 and the substrate 100 is equal to the distance between the first endpoint a1 and the substrate 100. Simultaneously, the distance between the first endpoint a1 and the substrate 100 is equal to the distance between the third endpoint a3 and the substrate 100. Therefore, the distance between the surface of the third insulating portion 413 away from the substrate 100 and the substrate 100 is equal to the distance between the third endpoint a3 and the substrate 100. That is, while satisfying the condition that the distance between the surface of the third insulating portion 413 away from the substrate 100 is equal to the distance between the first endpoint a1 and the substrate 100, it is also possible to satisfy the condition that the distance between the surface of the third insulating portion 413 away from the substrate 100 and the substrate is equal to the distance between the third endpoint a3 and the substrate 100, thereby demonstrating the flatness of the display panel 10 structure.

[0100] Further reference Figure 11 As shown, the distance between the surface of the third insulating portion 413 away from the substrate 100 and the substrate 100 is equal to the distance between the first endpoint a1 and the substrate 100. When the distance between the first endpoint a1 and the substrate 100 is less than the distance between the third endpoint a3 and the substrate 100, since the surface of the third insulating portion 413 away from the substrate 100 should not exceed the first endpoint a1 or the second endpoint a2, the distance between the surface of the third insulating portion 413 away from the substrate 100 and the substrate 100 is less than the distance between the third endpoint a3 and the substrate 100. This ensures that the third insulating portion 413 filled in the first groove 414 can block crosstalk between the light-emitting elements 300, thereby ensuring the overall display effect of the display panel 10.

[0101] Figure 12 This is a cross-sectional schematic diagram of the first type of insulation structure provided in the embodiments of the present invention. Figure 13 This is a cross-sectional schematic diagram of the second type of first insulation structure provided in the embodiments of the present invention. Figure 14 This is a cross-sectional schematic diagram of the third type of first insulation structure provided in the embodiments of the present invention, for reference. Figures 12 to 13 As shown, the first side surface 411b includes a plane or a curved surface; the second side surface 412b includes a plane or a curved surface.

[0102] Specifically, the morphological adjustments to the first insulating structure 410 are diverse. For example, the first insulating structure 410 includes a first insulating portion 411 and a second insulating portion 412. (See reference...) Figure 2 and Figure 13 As shown, the first side surface 411b includes a plane, so in the cross-sectional view, the first side surface 411b is a straight line; the second side surface 412b includes a plane, so in the cross-sectional view, the second side surface 412n is a straight line. (Reference) Figure 12 and Figure 14 As shown, the first side surface 411b includes a curved surface, so the first side surface 411b is a curve in the cross-sectional view; the second side surface 412b includes a curved surface, so the second side surface 412n is a curve in the cross-sectional view.

[0103] Continue to refer to Figures 12 to 14 As shown, along the first direction X, the sum of the widths of the first bottom surface 411a and the second bottom surface 412a is W; where W≥0.

[0104] Furthermore, the first bottom surface 411a in the first insulating portion 411 and the second bottom surface 4121a in the second insulating portion 412 are coplanar. By adjusting the dimensions of the first bottom surface 411a and the second bottom surface 412a along the first direction X, diverse structural morphologies of the first insulating structure 410 can be achieved. For example, refer to... Figure 2 and Figure 12 As shown, the sum of the widths of the first bottom surface 411a and the second bottom surface 412a is W; where W > 0; (Refer to...) Figure 13 and Figure 14 As shown, the sum of the widths of the first bottom surface 411a and the second bottom surface 412a is W; where W = 0.

[0105] refer to Figures 1 to 4 As shown, the display panel 10 also includes a second insulating structure 420, which is located on the side of the light-emitting element 300 near the array layer 200.

[0106] Furthermore, the reference figure shows that the display panel 10 also includes a second insulating structure 420, which is located on the side of the light-emitting element 300 near the array layer 200. Figure 2 and Figure 4 As shown, the second insulating structure 420 can be integrally manufactured with the first insulating portion 411 and the second insulating portion 412.

[0107] For example, refer to Figure 2As shown, if the first insulating portion 411 and the second insulating portion 412 are light-blocking structures, then the second insulating structure 420 is also a light-blocking structure. When the second insulating structure 420 is a light-blocking structure, it can absorb the light from the side of the light-emitting element 300 close to the substrate 100 to the maximum extent, thereby improving the light leakage of the transistor, ensuring the driving effect of the pixel circuit on the light-emitting element 300, and thus ensuring the display effect of the display panel 10.

[0108] For example, refer to Figure 3 As shown, if the first insulating portion 411 and the second insulating portion 412 are light-reflecting structures, the second insulating structure 420, which is jointly prepared with the first insulating portion 411 and the second insulating portion 412, is also a light-reflecting structure. This can further increase the light efficiency in the light-emitting element 300, thereby ensuring better light emission from the light-emitting element 300 and ensuring the overall display effect of the display panel 10.

[0109] It should be noted that, Figures 4 to 11 The cross-sectional view of the display panel 10 provided also includes the second insulating portion 420, which will not be described in detail.

[0110] Continue to refer to Figures 1 to 3 , Figures 6 to 10 As shown, the display panel 10 includes a first region 10A and a second region 10B, with the second region 10B located on one side of the first region 10A; the array layer 200 and the light-emitting element 300 are located in the first region 10A; the display panel 10 also includes a third insulating structure 430, which is located in the second region 10B; the orthographic projection of the third insulating structure 430 onto the substrate 100 is located on the side of the orthographic projection of the first insulating structure 410 onto the substrate 100 that is away from the orthographic projection of the light-emitting element 300 onto the substrate 100; along the thickness direction h of the substrate 100, the surface of the third insulating structure 430 away from the substrate 100 is located on the side of the surface of the light-emitting element 300 away from the substrate 100 that is close to the substrate 100, or the surface of the third insulating structure 430 away from the substrate 100 is flush with the surface of the light-emitting element 300 away from the substrate 100.

[0111] Among them, reference Figure 1 As shown, the display panel 10 includes a first region 10A and a second region 10B, with the second region 10B located on one side of the first region 10A. Since the array layer 200 and the light-emitting element 300 are located in the first region 10A, the first region 10A can be understood as the display light-emitting area of ​​the display panel 10.

[0112] The display panel 10 further includes a third insulating structure 430, the orthographic projection of which onto the substrate 100 is located on the side where the orthographic projection of the first insulating structure 410 onto the substrate 100 is farther from the orthographic projection of the light-emitting element 300 onto the substrate 100. For example, it can be combined with... Figure 5 As shown, the orthographic projection of the third insulating structure 430 onto the substrate 100 is b6, the orthographic projection of the first insulating structure 410 onto the substrate 100 is b1, and the orthographic projection of the light-emitting element 300 onto the substrate 100 is b2. Furthermore, the third insulating structure 430 is located in the second region 10B. When the third insulating structure 430 is a transparent insulating material, the second region 10B can be understood as the light-transmitting display region in the display panel 10.

[0113] Furthermore, the third insulation structure 430 can be configured in various ways, see reference. Figure 6 As shown, along the thickness direction h of the substrate 100, the surface of the third insulating structure 430 away from the substrate 100 is located on the side of the light-emitting element 300 away from the substrate 100 that is close to the substrate 100. This can be understood as follows: along the thickness direction h of the display panel 10, the distance between the surface of the third insulating structure 430 away from the substrate 100 and the substrate 100 is less than the distance between the surface of the light-emitting element 300 away from the substrate 100 and the substrate 100, thus ensuring the display effect of the display panel 10 with a wide viewing angle.

[0114] refer to Figure 2 , Figure 3 , Figure 7 , Figure 8 , Figure 9 and Figure 10 As shown, the surface of the third insulating structure 430 away from the substrate 100 is flush with the surface of the light-emitting element 300 away from the substrate 100. This can be understood as follows: along the thickness direction h of the display panel 10, the distance between the surface of the third insulating structure 430 away from the substrate 100 and the substrate 100 is equal to the distance between the surface of the light-emitting element 300 away from the substrate 100 and the substrate 100, thus ensuring the flatness of the overall structure of the display panel 10.

[0115] Optionally, refer to Figure 5 As shown, along the thickness direction h of the substrate 100, the surface of the third insulating structure 430 away from the substrate 100 is located on the side of the surface of the light-emitting element 300 away from the substrate 100 that is also away from the substrate 100. This can be understood as follows: along the thickness direction h of the display panel 10, the distance between the surface of the third insulating structure 430 away from the substrate 100 and the substrate 100 can be greater than the distance between the surface of the light-emitting element 300 away from the substrate 100 and the substrate 100. When the third endpoint a3 of the second side surface 412b in the second insulating portion 412 is synchronously height-adjusted with the third insulating structure 430, it can further enhance the anti-crosstalk effect of the display panel 10.

[0116] Optionally, during the fabrication of the display panel 10, the fabrication sequence of the third insulating structure 430 can precede that of the first insulating structure 410. After the array layer 200 is fabricated on the substrate 100 and the light-emitting element 300 is transferred, the fabrication of the third insulating structure 430 can be performed first. If the third insulating structure 430 is a transparent insulating material, fabricating the third insulating structure 430 first can ensure the proportion of the transparent area of ​​the display panel 10 and improve the light transmittance. At the same time, fabricating the third insulating structure 430 before fabricating the first insulating structure 410 can reduce the height difference between the light-emitting element 300 and the upper surface of the array layer 200 during the fabrication of the first insulating structure 410, which facilitates the formation of the first groove 414 in the first insulating structure 410. Furthermore, the curing temperature of the third insulating structure 430 during fabrication should be lower than the melting point of the eutectic layer of the light-emitting element 300. Simultaneously, the refractive index of the third insulating structure 430 can be adjusted to ensure that its refractive index is similar to that of adjacent film layers, thus ensuring a higher light transmittance of the display panel 10 at the third insulating structure 430.

[0117] Continue to refer to Figures 1 to 3 , Figures 5 to 11 As shown, the first insulating structure 410 is in contact with the third insulating structure 430 and / or the first insulating structure 410 is in contact with the light-emitting element 300.

[0118] For details, please refer to [link / reference]. Figures 1 to 3 , Figures 5 to 11 As shown, the third insulating structure 430 is in contact with the first insulating structure 410, and the first insulating structure 410 is also in contact with the light-emitting element 300. In some display panels 10, it is also possible to ensure that only the first insulating structure 410 and the third insulating structure 430 are in contact where the light-emitting element 300 is not provided, or to ensure that the first insulating structure 410 and the light-emitting element 300 are in contact where the third insulating structure 430 is not provided.

[0119] Figures 1 to 3 , Figures 5 to 11As shown, the first insulating structure 410 further includes a second insulating portion 412, which is located on the side of the first insulating portion 411 away from the light-emitting element 300. The second insulating portion 412 includes a second side surface 412b and a second bottom surface 412a. The second side surface 412b includes a third endpoint a3 and a fourth endpoint a4. The third endpoint a3 is located on the side of the fourth endpoint a4 away from the array layer 200. Along the first direction X, the distance between the third endpoint a3 and the light-emitting element 300 is greater than the distance between the fourth endpoint a4 and the light-emitting element 300. The bottom surface 412b is connected to the fourth endpoint a4, and the orthographic projection of the second bottom surface 412a onto the substrate 100 is located on the side of the second side surface 412b onto the substrate 100 that is close to the orthographic projection of the light-emitting element 300 onto the substrate 100; the first bottom surface 411a and the second bottom surface 412a are coplanar; along the thickness direction h of the substrate 100, the third endpoint a3 is located on the side of the third insulating structure 430 away from the substrate 100 that is close to the substrate 100, or the third endpoint a3 is flush with the side of the third insulating structure 430 away from the substrate 100.

[0120] Furthermore, the display panel 10 includes a first insulating structure 410 and a third insulating structure 430. The orthographic projection of the third insulating structure 430 onto the substrate 100 is located on the side of the orthographic projection of the first insulating structure 410 onto the substrate 100 that is farther away from the orthographic projection of the light-emitting element 300 onto the substrate 100. The first insulating structure 410 includes a first insulating portion 411 and a second insulating portion 412. By adjusting the relative positional relationship between the first insulating structure 410 and the third insulating structure 430, different display effects can be achieved by the display panel 10.

[0121] For details, please refer to Figure 8 , Figure 9 and Figure 10 As shown, the third endpoint a3 is located on the side of the third insulating structure 430 away from the substrate 100, close to the substrate 100. This can be understood as follows: along the thickness direction h of the display panel 10, the distance between the surface of the third insulating structure 430 away from the substrate 100 and the substrate 100 is greater than the distance between the third endpoint a3 and the substrate 100. That is, the height of the third insulating structure 430 is such that it is flush with the height of the surface of the light-emitting element 300 away from the substrate 100, thus ensuring the flatness of the overall structure of the display panel 10. The height of the third endpoint a3 can be understood as the setting height of the first insulating structure 410, which is lower than the height of the third insulating structure 430. Therefore, the first insulating structure 410 will not affect the overall flatness of the display panel 10. Simultaneously, the height of the third insulating structure 430 is equivalent to the height of the second insulating portion 421, facilitating the fabrication of the first insulating structure 410 during the manufacturing process of the display panel 10.

[0122] For details, please refer to Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 7 and Figure 11 As shown, the third endpoint a3 is flush with the surface of the third insulating structure 430 on the side away from the substrate 100.

[0123] This can be understood as follows: along the thickness direction h of the display panel 10, the distance between the surface of the third insulating structure 430 away from the substrate 100 and the substrate 100 is equal to the distance between the third endpoint a3 and the substrate 100. That is, the height of the third insulating structure 430 can be ensured to be flush with the height of the surface of the light-emitting element 300 away from the substrate 100, thus ensuring the flatness of the overall structure of the display panel 10. The height of the third endpoint a3 can be understood as the setting height of the first insulating structure 410, which is also equal to the height of the third insulating structure 430. Therefore, the first insulating structure 410 will not affect the overall flatness of the display panel 10. Furthermore, the maximum height that the second insulating portion 421 can reach is the height of the third insulating structure 430. Therefore, when the height of the second insulating portion 421 is equal to the height of the third insulating structure 430, crosstalk between different light-emitting elements 300 can be more effectively prevented, thereby ensuring the overall display effect of the display panel 10.

[0124] Continue to refer to Figure 1 and Figure 4 As shown, the first insulating portion 411 includes a light-blocking structure.

[0125] Further reference Figure 1 and Figure 4 As shown, for reference Figure 2 As shown, the first insulating structure 410 includes a first insulating portion 411, wherein the first insulating portion 411 includes a light-blocking structure, that is, the first insulating structure 410 as a whole is a light-blocking structure made of a light-blocking material. The light-blocking structure can block the transmission of light. The first insulating portion 411 is arranged around the light-emitting element 300, which can avoid color crosstalk between light-emitting elements 300 of different colors, thereby ensuring the overall display effect of the display panel 10.

[0126] Optional, Figure 15 yes Figure 1 A schematic diagram of the eleventh section along the central section line A-A', see reference. Figure 1 and Figure 15As shown, the first insulating portion 411 serves as a light-blocking structure, and its orthographic projection onto the substrate 100 covers the orthographic projection of the array layer 200 onto the substrate 100. Along the thickness direction h of the display panel 10, the first insulating portion 411 and the light-emitting element 300 can cover the entire array layer 200. The light-emitting element 300 is used for light emission display. While avoiding light crosstalk between different light-emitting elements 300, the first insulating portion 411 also prevents light leakage in the metal structure of the array layer 200 covered by the first insulating portion 411, thereby ensuring the overall display effect of the display panel 10.

[0127] Continue to refer to Figure 1 , Figure 4 and Figure 15 As shown, the display panel 10 includes a first region 10A and a second region 10B, with the second region 10B located on one side of the first region 10A; the array layer 200 and the light-emitting element 300 are located in the first region 10A; the display panel 10 also includes a fourth insulating structure 440, which is located in the second region 10B; the orthographic projection of the fourth insulating structure 440 onto the substrate 100 is located on the side away from the orthographic projection of the first insulating structure 410 onto the substrate 100; the array layer 200 also includes a planarization layer 230; the fourth insulating structure 440 and the planarization layer 230 are on the same layer.

[0128] Among them, reference Figure 1 As shown, the display panel 10 includes a first region 10A and a second region 10B. The first region 10A can be understood as the display light-emitting region of the display panel 10, and the second region 10B can be understood as the display light-transmitting region of the display panel 10.

[0129] Further reference Figure 4 and Figure 15 As shown, the display panel 10 also includes a fourth insulating structure 440. The orthographic projection of the fourth insulating structure 440 onto the substrate 100 is located on the side where the orthographic projection of the first insulating structure 410 onto the substrate 100 is away from the orthographic projection of the light-emitting element 300 onto the substrate 100. Furthermore, the fourth insulating structure 430 is located in the second region 10B. When the fourth insulating structure 440 is a transparent insulating material, the overall light transmittance of the display panel 10 can be guaranteed.

[0130] The array layer 200 includes a planarization layer 230, which ensures the flatness of the overall structure. The planarization layer 230 can be located between metal film layers or on the side of the metal film layers away from the substrate 100. Figure 4 and Figure 15Not all film layers are individually marked. Furthermore, the fourth insulating structure 440 can be disposed in the same layer as the planarization layer 230. During the manufacturing process of the display panel 10, the fourth insulating structure 440 and the planarization layer 230 are prepared simultaneously using the same process, which can save process steps. This ensures that the overall film layer thickness of the display panel 10 is relatively thin, which is beneficial to realizing the thin design of the display panel 10.

[0131] Optionally, the planarization layer 230 located on the side of the metal film layer away from the substrate 100 in the array layer 300 can be prepared by a transparent insulating material. Then, the fourth insulating structure 440 can be prepared simultaneously by the transparent planarization layer 230, thereby reducing the preparation steps of the display panel 10 and reducing the preparation cost of the display panel 10.

[0132] Figure 16 yes Figure 1 A schematic diagram of the first type of cross-section along section line B-B'. Figure 17 yes Figure 1 A schematic diagram of the second type of cross-section along section line B-B'. Figure 18 yes Figure 1 Schematic diagram of the third section along section line B-B' (see reference) Figure 1 , Figures 16 to 18 As shown, the array layer 200 also includes signal lines 220, and the display panel 10 also includes a fifth insulating structure 450, which is located on the side of the signal lines 220 away from the substrate 100.

[0133] Specifically, the array layer 200 also includes signal lines 220. Signal lines 220 can be understood as signal traces electrically connected to the pixel circuit 210, such as data signal lines, scan signal lines, or power signal lines. This embodiment of the invention does not specifically limit their usage. Further, refer to... Figures 16 to 18 As shown, the display panel 10 also includes a fifth insulating structure 450. The fifth insulating structure 450 is located on the side of the signal line 220 away from the substrate 100. That is, the fifth insulating structure 450 is used to cover the signal line 220. The signal line 220 is made of metal, so as to avoid the metal trace from affecting some of the light, thereby ensuring the overall display effect of the display panel 10.

[0134] For example, refer to Figure 16 and Figure 17 As shown, the fifth insulating structure 450 is equivalent to a recessed structure that covers and shields the signal line 220; Reference Figure 18 As shown, the fifth insulating structure 450 is equivalent to a light-shielding insulating film layer, which covers and blocks the signal line 220.

[0135] Continue to refer to Figure 16 and Figure 17As shown, the fifth insulating structure 450 includes a fourth insulating portion 451, the fourth insulating portion 451 includes a second groove 452, and the second groove 452 penetrates the fourth insulating portion 451.

[0136] Among them, reference Figure 16 and Figure 17 As shown, the fifth insulating structure 450 includes a fourth insulating portion 451, and the fourth insulating portion 421 includes a second groove 452.

[0137] Specifically, before the fifth insulating structure 450 is cured and etched to form the fourth insulating portion 451, the insulating material coated on the side of the signal line 220 away from the substrate 100 includes a colored solvent, such as a black solvent. The solid content of the black solvent can be below 20%, for example, 13.5%. The specific solid content value is not limited and can be adjusted adaptively according to actual needs. For example, after curing and etching the insulating material containing a 13.5% solid content colored solvent, a second groove 452 is formed. The morphology of the second groove 452 can be determined based on the flowability of the colored solvent, forming a corresponding morphology during the curing of the insulating material. Specifically, the adjustment of the specific morphology of the second groove 452 can be achieved due to different solid contents or by adjusting process parameters during curing or etching. This embodiment of the invention does not provide specific examples of the parameter settings.

[0138] Continue to refer to Figure 16 As shown, the fourth insulating portion 451 includes a light-blocking structure.

[0139] Further reference Figure 16 As shown, the fourth insulating portion 451 includes a light-blocking structure, meaning that the entire fourth insulating portion 451 is a light-blocking structure made of a light-blocking material. The light-blocking structure can block the transmission of light. The fourth insulating portion 451 is designed to cover the signal line 220, which can prevent the metal traces from affecting some of the light, thereby ensuring the overall display effect of the display panel 10.

[0140] Continue to refer to Figure 17 As shown, the fifth insulating structure 450 also includes a fifth insulating portion 453, which fills the second groove 452.

[0141] Further reference Figure 17 As shown, the fifth insulating structure 450 also includes a fifth insulating portion 453, which is filled in the second groove 452. The fifth insulating portion 453 can ensure the overall flatness of the display panel 10.

[0142] Continue to refer to Figure 17 As shown, the fourth insulating portion 451 includes a light-reflecting structure, and the fifth insulating portion 453 includes a light-blocking structure.

[0143] Further reference Figure 17 As shown, the fifth insulating portion 453, that is, the fifth insulating portion 453 as a whole, is a light-blocking structure made of light-blocking material. The light-blocking structure can block the transmission of light. The fifth insulating portion 453 is set to cover the signal line 220, which can prevent the metal traces from affecting some of the light, thereby ensuring the overall display effect of the display panel 10. Further, refer to... Figure 17 As shown, the fourth insulating portion 451 may also include a light-reflecting structure. Since the second groove 452 is filled with a fifth insulating portion 453 that has a light-blocking effect, the material setting of the fourth insulating portion 451 is flexible.

[0144] Figure 19 This is a schematic diagram of the structure of the second type of display panel provided in an embodiment of the present invention. Figure 20 yes Figure 19 A schematic diagram of the first type of cross-section along section line C-C', see reference. Figure 19 and Figure 20 As shown, the display panel 10 includes a first region 10C1 and a second region 10C2, with the first region 10C1 located on one side of the second region 10C2; the array layer 200 includes a pixel circuit and a driving circuit 240, with the pixel circuit electrically connected to the driving circuit 240 and the light-emitting element, respectively; the pixel circuit is located in the first region 10C1, and the driving circuit 240 is located in the second region 10C2; the display panel 10 also includes a transition region 10D, which is located between the first region 10C1 and the second region 10C2; the display panel 10 also includes a sixth insulating structure 460, which includes a first light-blocking portion 461 and a second light-blocking portion 462, with the first light-blocking portion 461 located in the second region 10C2 and on the side of the driving circuit 240 away from the substrate 100; the second light-blocking portion 462 is located in the transition region 10D, and the second light-blocking portion 462 and the first light-blocking portion 461 are located on the same side of the substrate 100.

[0145] Specifically, the array layer 200 includes a pixel circuit and a driving circuit 240. The pixel circuit and the driving circuit 240 are electrically connected. The driving circuit 240 can transmit scanning signals to the pixel circuit. The pixel circuit is also electrically connected to the light-emitting element. The pixel circuit then drives the light-emitting element to emit light and display, thereby realizing the overall display effect of the display panel 10.

[0146] Further reference Figure 19 As shown, the display panel 10 includes a first area C1, a second area C2, and a transition area 10D, with the first area C1 located to one side of the second area C2, and the transition area 10D located between the first area C1 and the second area C2. Specifically, refer to... Figure 20As shown, the pixel circuit is located in the first region 10C1, and the driving circuit 240 is located in the second region 10C2, wherein... Figure 20 The driving circuit 240 is shown in several metal trace layers. The specific film structure of the driving circuit 240 will not be described in detail in this embodiment of the invention. Figure 20 The pixel circuit is not shown in the figure. It is shown only as the third insulating structure 430 in the first region C1. It can also be shown as the third insulating structure 440. The embodiments of the present invention do not show them one by one.

[0147] Further reference Figure 20 As shown, the display panel 10 also includes a sixth insulating structure 460, which includes a second light-blocking portion 462 located in the transition region 10D and a first light-blocking portion 461 located in the second region C2. The first light-blocking portion 461 is located on the side of the driving circuit 240 away from the substrate 100, and the second light-blocking portion 462 is located on the same side of the substrate 100 as the first light-blocking portion 461. The first light-blocking portion 461 and the second light-blocking portion 462 can be light-blocking structures, i.e., they can be integrally formed. By providing the sixth insulating structure 460, light leakage in the driving circuit 220 can be avoided, and the sixth insulating structure 460 covers the second region C2 and the transition region 10D, which helps to improve the overall structural stability of the display panel 10.

[0148] Continue to refer to Figure 19 and Figure 20 As shown, the width of the transition region 10D is D along the direction from the first region 10C1 to the second region 10C2; where D≤40 micrometers.

[0149] Further reference Figure 19 and Figure 20As shown, along the direction S from the first region 10C1 to the second region 10C2, the width of the transition region 10D is less than or equal to 40 micrometers, thus ensuring a small width for the transition region 10D. If the second region 10C2 is a non-display area, reducing the size of the transition region 10D facilitates a narrow bezel design for the display panel 10. If the second region 10C2 and the transition region 10D are both display areas like the first region 10C1, then light-emitting elements are also placed in the second region 10C2 and the transition region 10D. The light-emitting elements in the second region 10C2 and the transition region 10D are electrically connected to the pixel circuit of the first region 10C1 via connecting lines. That is, the light-emitting elements and pixel circuit in the second region 10C2 and the transition region 10D do not overlap in the thickness direction h of the display panel, which helps the display panel achieve a borderless display effect. Furthermore, during the preparation of the sixth insulating structure 460, the space along the direction from the first region 10C1 to the second region 10C2 is relatively small, which can shorten the preparation liquid surface of the second light-blocking portion 462 in the sixth insulating structure 460, thereby effectively reducing the tendency of film peeling at the second region 10C, thus ensuring the overall structural stability of the display panel 10.

[0150] Figure 21 yes Figure 1 A schematic diagram of the second type of section along section line C-C', see reference. Figure 21 As shown, the display panel 10 also includes an insulating layer structure and / or a conductive structure (shown as 500 in the figure), which is located on the side of the second light-blocking portion 462 near the substrate 100.

[0151] Further reference Figure 21 As shown, for reference Figure 21 As shown, the display panel 10 may also include an insulating structure and / or a conductive structure (see reference). Figure 21 (The structure indicated by 500 in the middle) The insulating layer structure and / or conductive structure are located on the side of the second light-blocking portion 462 close to the substrate 100. By setting the insulating layer structure and / or conductive structure, the position of the second light-blocking portion 462 can be raised compared to not setting the insulating layer structure and / or conductive structure, thereby reducing the height difference between the first light-blocking portion 461 and the second light-blocking portion 462, thus ensuring that the fabrication of the sixth insulating structure 460 is more convenient and the structure of the sixth insulating structure 460 is more stable.

[0152] Furthermore, the structure added to the second light-blocking portion 462 near the substrate 100 can be an insulating layer structure, a conductive structure, or both an insulating layer structure and a conductive structure. This embodiment of the invention does not impose specific limitations on this.

[0153] Figure 22 yes Figure 19A schematic diagram of the third section along section line C-C', see reference. Figure 22 As shown, the display panel 10 also includes a seventh insulating structure 470, which is located on the side of the first light-blocking portion 461 away from the second light-blocking portion 462, and on the side of the driving circuit 240 away from the substrate 100.

[0154] Further reference Figure 22 As shown, the display panel 10 also includes a seventh insulating structure 470. The seventh insulating structure 470 is located on the side of the driving circuit 240 away from the substrate 100, and along the direction from the first region 10C1 to the second region 10C2, the seventh insulating structure 470 is located on the side of the first light-blocking portion 461 away from the second light-blocking portion 462. Combined with... Figure 22 As shown, if the third insulating structure 430 is located at the first zone 10C1, then the seventh insulating structure 470 and the third insulating structure 430 effectively provide a fixed installation space for the sixth insulating structure 460. It can be understood that the seventh insulating structure 470 can be considered a "barrier," and combined with the third insulating structure 430, it effectively increases adhesion to both sides of the sixth insulating structure 460, thereby ensuring the structural stability of the sixth insulating structure 460 and improving the overall structural stability of the display panel 10.

[0155] Figure 23 This is a top view of a first metal trace portion provided in an embodiment of the present invention, with reference to... Figure 20 and Figure 23 As shown, the driving circuit 240 includes multiple metal trace layers, each of which includes a first metal trace portion 241. The first metal trace portion 241 is located on the side of the first light-blocking portion 461 that is close to the substrate 100, and the first light-blocking portion 461 covers the first metal trace portion 241. The first metal trace portion 241 includes at least one cutout unit 242.

[0156] For details, please refer to Figure 20 As shown, the driving circuit 240 includes multiple metal trace layers. The specific number and location of these metal trace layers are not specifically limited in this embodiment. Further, the metal trace layer includes a first metal trace portion 241, which is located on the side of the first light-blocking portion 461 closest to the substrate 100. This can be understood as the first metal trace portion 241 being the metal trace layer furthest from the substrate 100 in the driving circuit 240. The first metal trace portion 241 is in contact with the first light-blocking portion 461, and no other insulating or metal film layer is disposed between the first metal trace portion 241 and the first light-blocking portion 461.

[0157] Further reference Figure 23As shown, the first metal trace portion 241 includes at least one cutout unit 242. The number and shape of the cutout units 242 are not specifically limited. Figure 23 The example given is the first metal trace portion 241 comprising six circular cutout units 242. Furthermore, when the first metal trace portion 241 comprises multiple cutout units 242, the arrangement of the multiple cutout units 242 is not specifically limited.

[0158] The first metal trace portion 241 is disposed on the side of the array layer 200 away from the substrate 100 of an insulating layer, and the first light-blocking portion 461 is disposed on the side of the first metal trace portion 241 away from the substrate 100. When the first metal trace portion 241 includes at least one cutout unit 242, during the fabrication of the first light-blocking portion 461, the first light-blocking portion 461 will be deposited at the cutout unit 242 and contact the insulating layer in the array layer 200. It can be understood that by setting the cutout unit 242, the contact area between the first light-blocking portion 461 and the insulating layer in the array layer 200 can be increased, thereby ensuring a more stable setting of the sixth insulating structure 460, reducing the tendency for peeling between film layers, and thus ensuring the overall structural stability of the display panel 10.

[0159] Based on the same inventive concept, embodiments of the present invention also provide a method for manufacturing a display panel. Figure 24 This is a schematic diagram of the manufacturing process of the first type of display panel provided in this embodiment of the invention, for reference. Figure 24 As shown, the preparation method includes:

[0160] S110, Provides a substrate.

[0161] For example, the provided substrate can be a rigid substrate, such as glass, or a flexible substrate. The embodiments of the present invention do not limit the type of substrate.

[0162] S120, Fabricate the array layer.

[0163] Furthermore, an array layer is fabricated on one side of the substrate. The array layer may include pixel circuits, which are electrically connected to the subsequently transferred light-emitting elements to drive the light-emitting elements to emit light and display, thereby realizing the display function of the display panel.

[0164] Optionally, the array layer is illustrated using a pixel circuit as an example. The pixel circuit includes at least one transistor. The specific type and number of transistors are not limited in this embodiment, and the type of pixel circuit can be adaptively adjusted according to actual needs. Optionally, the array layer includes multiple stacked metal layers and insulating layers. Further, the transistors include active layers, gates, sources, and 210d, etc. Based on the specific types of metal and insulating layers in the array layer, they are not all shown here.

[0165] Optionally, the array layer may also include driving circuits electrically connected to the pixel circuits, or signal lines electrically connected to the pixel circuits, etc., without being specifically limited based on the specific type of structure in the array layer.

[0166] S130, Transfer light-emitting element.

[0167] Specifically, the light-emitting elements can be pre-fabricated on a transfer substrate. By moving the transfer substrate with the light-emitting elements to the substrate, the light-emitting elements are transferred to the side of the array layer away from the substrate. Furthermore, the light-emitting elements can include red, blue, and green light-emitting elements, etc. The pixel circuit drives the light-emitting elements of different colors to emit light and display, realizing the color display effect of the display panel.

[0168] S140, Prepare the first insulating structure.

[0169] Furthermore, a first insulating structure is fabricated. Both the first insulating structure and the light-emitting element are located on the side of the array layer away from the substrate, and the first insulating structure is disposed around at least a portion of the light-emitting element. Specifically, the first insulating structure includes a first insulating portion. Along the thickness direction of the display panel, the orthographic projection of the first insulating portion onto the substrate at least partially overlaps with the orthographic projection of the array layer onto the substrate, meaning the first insulating portion at least partially covers the array layer. For example, along the thickness direction of the display panel, the orthographic projection of the array layer not covered by the light-emitting element onto the substrate is greater than the orthographic projection of the first insulating portion onto the substrate, meaning that a portion of the array layer is neither covered by the first insulating portion nor by the light-emitting element. Alternatively, along the thickness direction of the display panel, the orthographic projection of the array layer not covered by the light-emitting element onto the substrate is smaller than the orthographic projection of the first insulating portion onto the substrate, meaning that if the array layer is not covered by the first insulating portion, it is covered by the light-emitting element. Therefore, the positional relationship between the first insulating portion and the array layer is diverse and can be adaptively adjusted according to the actual needs of the display panel.

[0170] Specifically, the first insulating portion includes a first side surface and a first bottom surface, wherein the orthographic projection of the first bottom surface onto the substrate is located on the side of the first side surface that is farther from the orthographic projection of the light-emitting element onto the substrate, i.e., the first bottom surface is farther from the light-emitting element compared to the first side surface. Further, the first side surface includes a first endpoint and a second endpoint, wherein the first endpoint is located on the side of the second endpoint that is farther from the array layer. Simultaneously, the first bottom surface is connected to the second endpoint, i.e., the first bottom surface is connected to the endpoint of the first side surface closer to the substrate. Thus, the first side surface and the first bottom surface in the first insulating portion constitute at least a portion of the surface of a "concave" structure. The first bottom surface is the bottom surface of the "concave" structure, and the first side surface is one side surface of the "concave" structure, with this side surface closer to the light-emitting element, thereby realizing that the first insulating structure surrounds at least a portion of the light-emitting element. The first insulating structure surrounding at least a portion of the light-emitting element can be understood as the first insulating structure surrounding a part of a light-emitting element, or it can be a complete circle around the light-emitting element.

[0171] Furthermore, along the first direction, the distance between the first endpoint and the light-emitting element is smaller than the distance between the second endpoint and the light-emitting element. That is, the closer the first side is to the first endpoint, the smaller the distance between it and the light-emitting element; the closer the first side is to the second endpoint, the larger the distance between it and the light-emitting element. This reflects the overall arrangement trend of the first side and further illustrates the morphology of the first insulating portion surrounding the light-emitting element.

[0172] Furthermore, the first insulating portion of the display panel is made of a light-blocking material and surrounds the light-emitting element. This avoids color crosstalk between different light-emitting elements and further prevents light leakage in the array layer, thereby improving the overall display effect of the display panel. Furthermore, the first bottom surface and the first side surface of the first insulating portion constitute at least part of a "concave" structure. The groove formed by the first insulating portion and the adjacent insulating structure can be filled with light-blocking material, which also avoids color crosstalk between different light-emitting elements and improves the overall display effect of the display panel.

[0173] Specifically, in the fabrication process of the display panel provided in this embodiment of the invention, after the array layer and light-emitting elements are fabricated on the substrate (the light-emitting elements can be fabricated by transferring the light-emitting elements to the side of the array layer away from the substrate through a transfer substrate), the first insulating structure is then fabricated. Specifically, an insulating material is coated onto the display panel and then cured and etched. During the curing process, a corresponding recessed structure is formed, which can partially correspond to the first bottom surface and the first side surface in the first insulating portion. The formation of the recessed structure can be determined according to the properties of the insulating material. For example, if a colored solvent is present in the first insulating structure before curing, the colored solvent has fluidity and will form a corresponding sloped recess during the curing process. After etching the first insulating structure, the corresponding first insulating portion is formed, thus forming the corresponding first bottom surface and the first side surface. It should be noted that when fabricating the first insulating structure, the melting and flow of the first insulating portion is similar to a capillary phenomenon. If it encounters an obstacle, it will automatically extend upward along the obstacle, thus forming a recessed structure. Depending on the display panel, the first insulating structure can be directly fabricated using a light-blocking material, or a light-blocking material can be filled into the first insulating structure to ensure the overall display effect of the display panel. By advancing the transfer process of the light-emitting element to the fabrication process of the insulating structure, the morphology of the first insulating structure can be adjusted, showcasing its morphological diversity, improving the anti-crosstalk effect of the display panel, enhancing its diversity, and ensuring its display performance. Furthermore, the first side of the first insulating portion in the first insulating structure is attached to the side of the light-emitting element, meaning there is no gap between the first insulating structure and the light-emitting element. The first insulating structure can block crosstalk between side rays from the light-emitting element, further ensuring the display performance. Simultaneously, there is no need to reserve additional space for improving the alignment accuracy of the light-emitting element transfer, or for providing additional space for the alignment accuracy of the exposure machine during the fabrication of the insulating structure. This allows for sufficient space to accommodate more light-emitting elements, increasing the pixel density of the display panel and further enhancing its overall display performance.

[0174] In summary, the embodiments of the present invention provide a method for manufacturing a display panel. By adjusting the preparation of the first insulating structure after the transfer of the light-emitting element, the shape of the first insulating structure can be adjusted, which is beneficial to ensuring the overall display effect of the display panel. The shape adjustment of the first insulating structure can be achieved by adjusting the preparation process during the manufacturing process of the display panel.

[0175] Figure 25 This is a schematic diagram of the manufacturing process of the second type of display panel provided in this embodiment of the invention, for reference. Figure 25 As shown, the preparation method further includes:

[0176] S210, Provides a substrate.

[0177] S220, Fabrication of the array layer.

[0178] S230, Transfer light-emitting element.

[0179] S240, Prepare the third insulating structure.

[0180] Furthermore, after fabricating the array layer and transferring the light-emitting element on the substrate, the third insulating structure can be fabricated first. If the third insulating structure is a transparent insulating material, fabricating it first ensures the proportion of the transparent area defined in the display panel, thus improving light transmittance. Simultaneously, fabricating the third insulating structure before the first insulating structure reduces the height difference between the light-emitting element and the upper surface of the array layer during the fabrication of the first insulating structure, facilitating the formation of the first groove in the first insulating structure. Furthermore, the curing temperature of the third insulating structure during fabrication should be lower than the melting point of the eutectic layer of the light-emitting element. Additionally, the refractive index of the third insulating structure can be adjusted to ensure it is similar to that of adjacent film layers, guaranteeing higher light transmittance of the display panel at the third insulating structure.

[0181] S250, Etching the third insulating structure to prepare the third groove.

[0182] S260, Fill the third groove with the first insulating structure.

[0183] Specifically, the fabrication process of the third insulating structure may include coating, curing, and etching of the insulating layer. A third groove is etched into the third insulating structure; this third groove is then used to fill the first insulating structure.

[0184] Specifically, the display panel includes a first region and a second region, with the second region located on one side of the first region. Since the array layer and the light-emitting element are located in the first region, the first region can be understood as the display light-emitting area of ​​the display panel. The orthographic projection of the third insulating structure onto the substrate is located on the side of the orthographic projection of the first insulating structure onto the substrate that is furthest from the orthographic projection of the light-emitting element onto the substrate. Furthermore, the third insulating structure is located in the second region; when the third insulating structure is a transparent insulating material, the second region can be understood as the display light-transmitting area in the display panel.

[0185] Furthermore, the third insulating structure can be set in various ways. Along the thickness direction of the substrate, the surface of the third insulating structure away from the substrate can be located on the side of the light-emitting element away from the substrate that is closer to the substrate. This can be understood as the distance between the surface of the third insulating structure away from the substrate and the substrate being smaller than the distance between the surface of the light-emitting element away from the substrate and the substrate along the thickness direction of the display panel, thus ensuring the display effect of the display panel with a wide viewing angle.

[0186] Furthermore, the surface of the third insulating structure away from the substrate can be flush with the surface of the light-emitting element away from the substrate. This can be understood as the distance between the surface of the third insulating structure away from the substrate and the substrate along the thickness direction of the display panel being equal to the distance between the surface of the light-emitting element away from the substrate and the substrate, thus ensuring the flatness of the overall structure of the display panel.

[0187] Furthermore, along the thickness direction of the substrate, the surface of the third insulating structure away from the substrate can be located on the side of the surface of the light-emitting element away from the substrate. This can be understood as follows: along the thickness direction of the display panel, the distance between the surface of the third insulating structure away from the substrate and the substrate can be greater than the distance between the surface of the light-emitting element away from the substrate and the substrate. When the third endpoint of the second side in the second insulating section is synchronously height-adjusted with the third insulating structure, it can further enhance the anti-crosstalk effect of the display panel.

[0188] Optionally, an insulating layer is coated on the side of the array layer away from the substrate; the insulating layer is then etched to prepare a first insulating structure; and the insulating layer on the side of the light-emitting element away from the substrate is then removed.

[0189] Specifically, during the etching process of preparing the first insulating structure, an additional etching process is added to etch away the insulating layer remaining on the side of the light-emitting element away from the substrate, thereby preventing the insulating layer from affecting the light emission effect of the light-emitting element and ensuring the overall display effect of the display panel.

[0190] Based on the same inventive concept, embodiments of the present invention also provide a display device. Figure 26 This is a schematic diagram of the structure of a display device provided in an embodiment of the present invention, such as... Figure 26 As shown, the display device 1 includes the display panel 10 described in any of the above embodiments. Therefore, the display device 1 provided in this embodiment of the invention possesses the corresponding beneficial effects described in the above embodiments, which will not be repeated here. For example, the display device 1 can be an electronic device such as a mobile phone, computer, smart wearable device (e.g., smartwatch), and in-vehicle display device, and this embodiment of the invention does not limit it.

[0191] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A display panel, characterized in that, include: substrate; An array layer is located on one side of the substrate; The light-emitting element is located on the side of the array layer away from the substrate; A first insulating structure is located on the side of the array layer away from the substrate, and the first insulating structure surrounds at least a portion of the light-emitting element and is in contact with the light-emitting element; the first insulating structure includes a first insulating portion, the orthographic projection of the first insulating portion onto the substrate at least partially overlapping the orthographic projection of the array layer onto the substrate; The first insulating portion includes a first side surface and a first bottom surface. The first side surface includes a first end point and a second end point. The first end point is located on the side of the second end point away from the array layer. Along the first direction, the distance between the first end point and the light-emitting element is smaller than the distance between the second end point and the light-emitting element. The first bottom surface is connected to the second end point, and the orthographic projection of the first bottom surface onto the substrate is located on the side of the first side surface onto the substrate away from the orthographic projection of the light-emitting element onto the substrate. Wherein, the first direction is parallel to the plane where the substrate is located; The first insulating structure further includes a second insulating portion, which is located on the side of the first insulating portion away from the light-emitting element; The second insulating portion includes a second side surface and a second bottom surface. The second side surface includes a third endpoint and a fourth endpoint. The third endpoint is located on the side of the fourth endpoint away from the array layer. Along the first direction, the distance between the third endpoint and the light-emitting element is greater than the distance between the fourth endpoint and the light-emitting element. The second bottom surface is connected to the fourth endpoint, and the orthographic projection of the second bottom surface onto the substrate is located on the side of the orthographic projection of the second side surface onto the substrate that is closer to the orthographic projection of the light-emitting element onto the substrate. The first bottom surface and the second bottom surface are coplanar. The display panel includes a first region and a second region, wherein the second region is located on one side of the first region; The array layer and the light-emitting element are located in the first region; the display panel further includes a third insulating structure located in the second region; the first region is the display light-emitting region of the display panel; the third insulating structure is a transparent insulating material, and the second region is the display light-transmitting region of the display panel; The orthographic projection of the third insulating structure onto the substrate is located on the side where the orthographic projection of the first insulating structure onto the substrate is farther away from the orthographic projection of the light-emitting element onto the substrate. Along the thickness direction of the substrate, the surface of the third insulating structure away from the substrate is located on the side of the surface of the light-emitting element away from the substrate that is also away from the substrate, or the surface of the third insulating structure away from the substrate is located on the side of the surface of the light-emitting element away from the substrate that is close to the substrate, or the surface of the third insulating structure away from the substrate is flush with the surface of the light-emitting element away from the substrate.

2. The display panel according to claim 1, characterized in that, The second insulating section includes a light-blocking structure.

3. The display panel according to claim 2, characterized in that, Along the thickness direction of the display panel, the first endpoint is flush with the third endpoint.

4. The display panel according to claim 2, characterized in that, Along the thickness direction of the display panel, the distance between the first endpoint and the substrate is less than the distance between the third endpoint and the substrate, or the distance between the first endpoint and the substrate is greater than the distance between the third endpoint and the substrate.

5. The display panel according to claim 2, characterized in that, Along the thickness direction of the display panel, the distance between the first endpoint and the substrate is less than the distance between the surface of the light-emitting element away from the substrate and the substrate.

6. The display panel according to claim 2, characterized in that, Along the thickness direction of the display panel, the distance between the third endpoint and the substrate is greater than the distance between the surface of the light-emitting element on the side away from the substrate and the substrate, or the third endpoint is flush with the side of the light-emitting element away from the substrate.

7. The display panel according to claim 2, characterized in that, Along the thickness direction of the display panel, the first endpoint is flush with the side of the light-emitting element away from the substrate, or the first endpoint is closer to the substrate relative to the side of the light-emitting element away from the substrate.

8. The display panel according to claim 2, characterized in that, Along the first direction, the width of the light-emitting element is L1; Along the first direction, the distance between the first endpoints located on both sides of the light-emitting element is L2; Where (L2-L1) > 0.

9. The display panel according to claim 1, characterized in that, The first insulating structure further includes a first groove and a third insulating portion, wherein the first groove is at least partially formed by the first side surface, the first bottom surface, the second side surface, and the second bottom surface, and the third insulating portion fills the first groove.

10. The display panel according to claim 9, characterized in that, The first insulating portion and / or the second insulating portion include a light-reflecting structure, and the third insulating portion includes a light-blocking structure.

11. The display panel according to claim 10, characterized in that, The distance between the surface of the third insulating portion away from the substrate and the substrate is equal to the distance between the first endpoint and the substrate; The distance between the first endpoint and the substrate is less than or equal to the distance between the third endpoint and the substrate.

12. The display panel according to claim 1, characterized in that, The first side surface includes a plane or a curved surface; the second side surface includes a plane or a curved surface.

13. The display panel according to claim 1, characterized in that, Along the first direction, the sum of the widths of the first bottom surface and the second bottom surface is W; where W≥0.

14. The display panel according to claim 1, characterized in that, The display panel also includes a second insulating structure located on the side of the light-emitting element near the array layer.

15. The display panel according to claim 14, characterized in that, The first insulating structure is in contact with the third insulating structure.

16. The display panel according to claim 14, characterized in that, Along the thickness direction of the substrate, the third endpoint is located on the side of the third insulating structure away from the substrate that is close to the substrate, or the third endpoint is flush with the side of the third insulating structure away from the substrate.

17. The display panel according to claim 1, characterized in that, The first insulating portion includes a light-blocking structure.

18. The display panel according to claim 17, characterized in that, The display panel further includes a fourth insulating structure located in the second region; The orthographic projection of the fourth insulating structure onto the substrate is located on the side where the orthographic projection of the first insulating structure onto the substrate is away from the orthographic projection of the light-emitting element onto the substrate. The array layer also includes a planarization layer; The fourth insulating structure is on the same layer as the planarization layer.

19. The display panel according to claim 1, characterized in that, The array layer also includes signal lines; The display panel further includes a fifth insulating structure located on the side of the signal line away from the substrate.

20. The display panel according to claim 19, characterized in that, The fifth insulating structure includes a fourth insulating portion, the fourth insulating portion including a second groove, the second groove penetrating the fourth insulating portion.

21. The display panel according to claim 20, characterized in that, The fourth insulation component includes a light-blocking structure.

22. The display panel according to claim 20, characterized in that, The fifth insulating structure further includes a fifth insulating portion, which fills the second groove.

23. The display panel according to claim 22, characterized in that, The fourth insulating portion includes a light-reflecting structure, and the fifth insulating portion includes a light-blocking structure.

24. The display panel according to claim 1, characterized in that, The display panel includes a first area and a second area, with the first area located on one side of the second area; the array layer includes a pixel circuit and a driving circuit, with the pixel circuit electrically connected to the driving circuit and the light-emitting element respectively; the pixel circuit is located in the first area, and the driving circuit is located in the second area; The display panel further includes a transition area located between the first area and the second area; The display panel further includes a sixth insulating structure, which includes a first light-blocking portion and a second light-blocking portion. The first light-blocking portion is located in the second region and is located on the side of the driving circuit away from the substrate. The second light-blocking portion is located in the transition region and is located on the same side of the substrate as the first light-blocking portion.

25. The display panel according to claim 24, characterized in that, The width of the transition zone is D along the direction from the first zone to the second zone; Where D ≤ 40 micrometers.

26. The display panel according to claim 24, characterized in that, The display panel further includes an insulating layer structure and / or a conductive structure, the insulating layer structure and / or conductive structure being located on the side of the second light-blocking portion near the substrate.

27. The display panel according to claim 24, characterized in that, The display panel further includes a seventh insulating structure located on the side of the first light-blocking portion away from the second light-blocking portion, and the seventh insulating structure is located on the side of the driving circuit away from the substrate.

28. The display panel according to claim 24, characterized in that, The driving circuit includes multiple metal trace layers, each metal trace layer including a first metal trace portion. The first metal trace portion is located on the side of the first light-blocking portion that is close to the substrate, and the first light-blocking portion covers the first metal trace portion. The first metal trace portion includes at least one cutout unit.

29. A method for manufacturing a display panel, used to manufacture the display panel as described in any one of claims 1-28, characterized in that, include: Provide substrate; An array layer is fabricated, the array layer being located on one side of the substrate; The light-emitting element is transferred, and the light-emitting element is located on the side of the array layer away from the substrate; A first insulating structure is prepared, the first insulating structure being located on the side of the array layer away from the substrate, and the first insulating structure surrounding at least a portion of the light-emitting element, and the first insulating structure being in contact with the light-emitting element; The first insulating structure includes a first insulating portion, the orthographic projection of the first insulating portion onto the substrate at least partially overlapping the orthographic projection of the array layer onto the substrate; wherein, the first insulating portion includes a first side surface and a first bottom surface, the first side surface includes a first endpoint and a second endpoint, the first endpoint being located on the side of the second endpoint away from the array layer, and along a first direction, the distance between the first endpoint and the light-emitting element is less than the distance between the second endpoint and the light-emitting element; the first bottom surface is connected to the second endpoint, and the orthographic projection of the first bottom surface onto the substrate is located on the side of the orthographic projection of the first side surface onto the substrate away from the orthographic projection of the light-emitting element onto the substrate, wherein, the first direction overlaps with the orthographic projection of the array layer onto the substrate. The first insulating structure is parallel to the plane; it further includes a second insulating portion located on the side of the first insulating portion away from the light-emitting element; the second insulating portion includes a second side surface and a second bottom surface, the second side surface includes a third endpoint and a fourth endpoint, the third endpoint is located on the side of the fourth endpoint away from the array layer, and along the first direction, the distance between the third endpoint and the light-emitting element is greater than the distance between the fourth endpoint and the light-emitting element; the second bottom surface is connected to the fourth endpoint, and the orthographic projection of the second bottom surface onto the substrate is located on the side of the orthographic projection of the second side surface onto the substrate closer to the orthographic projection of the light-emitting element onto the substrate; the first bottom surface and the second bottom surface are coplanar; Before fabricating the first insulating structure, the following steps are also included: A third insulating structure is fabricated; the display panel includes a first region and a second region, the second region being located on one side of the first region; the array layer and the light-emitting element are located in the first region; the third insulating structure is located in the second region, and the third insulating structure is located on the side of the array layer away from the substrate; the first region is the display light-emitting region of the display panel; the third insulating structure is a transparent insulating material, and the second region is the display light-transmitting region in the display panel; The third insulating structure is etched to form a third groove, and the orthogonal projection of the third groove onto the substrate at least partially overlaps with the orthogonal projection of the array layer onto the substrate; The preparation of the first insulating structure includes: The first insulating structure is filled in the third groove; wherein the orthographic projection of the third insulating structure onto the substrate is located on the side of the orthographic projection of the first insulating structure onto the substrate that is away from the orthographic projection of the light-emitting element onto the substrate; along the thickness direction of the substrate, the surface of the third insulating structure away from the substrate is located on the side of the surface of the light-emitting element away from the substrate that is away from the substrate, or the surface of the third insulating structure away from the substrate is located on the side of the surface of the light-emitting element away from the substrate that is close to the substrate, or the surface of the third insulating structure away from the substrate is flush with the surface of the light-emitting element away from the substrate.

30. The preparation method according to claim 29, characterized in that, The preparation of the first insulating structure also includes: An insulating layer is coated on the side of the array layer away from the substrate; Etch the insulating layer and prepare the first insulating structure; Remove the insulating layer from the side of the light-emitting element away from the substrate.

31. A display device, characterized in that, Includes the display panel as described in any one of claims 1-28.

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