A display panel and a display device

Abstract

An embodiment of the present application discloses a display panel and a display device including the display panel. The display panel includes a first substrate disposed along a first direction, a control circuit layer, a first planarization layer, an electrical connection structure, a second planarization layer, and a light-emitting element. The first direction is perpendicular to the plane where the first substrate is located. Among them, the first planarization layer includes a planar portion and a plurality of protruding portions. Along the first direction, the maximum distance from the planar portion to the first substrate is less than the maximum distance from the protruding portion to the first substrate. The electrical connection structure includes a first portion overlapping with the planar portion and a second portion overlapping with the protruding portion along the first direction. The first portion is electrically connected to the light-emitting control circuit. The second planarization layer covers the first portion and exposes at least a part of the second portion to facilitate the electrical connection between the second portion and the light-emitting element. The display panel can reduce the probability of poor contact occurring during its manufacture.

Description

Technical Field

[0001] The present application relates to the field of display technologies, and in particular, to a display panel and a display device including the display panel. Background Art

[0002] With the development of display technologies, Micro LED display panels are increasingly widely used and gradually become the mainstream development trend in the display field. Specifically, Micro LED display technology refers to a display technology in which self-luminous micron-scale LEDs are used as light-emitting pixel units and assembled onto a driving panel to form a high-density LED array. Due to the characteristics of small size, high integration, and self-luminescence of Micro LED chips, in terms of display, compared with LCD and OLED, it has greater advantages in terms of brightness, resolution, contrast, energy consumption, service life, response speed, and thermal stability. However, in the production of existing Micro LED display panels, poor contact often occurs. Summary of the Invention

[0003] To solve the above technical problems, an embodiment of the present application provides a display panel to reduce the probability of poor contact occurring during the production of the display panel.

[0004] To solve the above problems, the embodiment of the present application provides the following technical solutions:

[0005] A display panel, comprising:

[0006] A first substrate;

[0007] A control circuit layer located on a first side of the first substrate, the control circuit layer including a light-emitting control circuit;

[0008] A first planarization layer located on a side of the control circuit layer away from the first substrate, the first planarization layer including a planar portion and a plurality of protruding portions. Along a first direction, the maximum distance from the planar portion to the first substrate is less than the maximum distance from the protruding portion to the first substrate; the first direction is perpendicular to the plane where the first substrate is located;

[0009] An electrical connection structure located on a side of the first planarization layer away from the first substrate, the electrical connection structure including a first portion overlapping with the planar portion and a second portion overlapping with the protruding portion along the first direction;

[0010] A light-emitting element located on a side of the first planarization layer away from the first substrate, the first portion being electrically connected to the light-emitting control circuit, and the second portion being electrically connected to the light-emitting element;

[0011] A second planarization layer located on a side of the light-emitting element close to the electrical connection structure, the second planarization layer covering the first portion and exposing at least a part of the second portion.

[0012] Compared with the prior art, the above technical solution has the following advantages:

[0013] When the display panel provided by the embodiment of the present application realizes the electrical connection between the light-emitting element and the light-emitting control circuit, instead of forming a through hole in the first planarization layer, a protruding portion protruding from the planar portion is provided in the first planarization layer, so that a part of the electrical connection structure electrically connecting the light-emitting element and the light-emitting control circuit is located on the planar portion and a part is located on the protruding portion. Furthermore, the light-emitting element can be directly electrically connected to a part of the electrical connection structure located on the surface of the protruding portion, avoiding the problem that when a through hole is formed in the first planarization layer, there is etching residue in the through hole, resulting in poor contact between the electrical connection structure and the light-emitting control circuit, and thus avoiding the phenomenon of poor contact during the manufacturing process of the display panel. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0015] Figure 1 It is a partial top view of an existing Micro LED display panel;

[0016] Figure 2 is Figure 1 a cross-sectional view along EE1;

[0017] Figure 3 It is a schematic structural diagram of a display panel provided by an embodiment of the present application;

[0018] Figure 4 It is a schematic structural diagram of a display panel provided by another embodiment of the present application;

[0019] Figure 5 It is a schematic structural diagram of a display panel provided by yet another embodiment of the present application;

[0020] Figure 6 It is a schematic diagram of reflected light inside a display panel provided by an embodiment of the present application;

[0021] Figure 7 It is a schematic structural diagram of a display panel provided by another embodiment of the present application;

[0022] Figure 8 Schematic diagram of reflected light inside the display panel provided by another embodiment of the present application;

[0023] Figure 9 Schematic diagram of the relationship curve between the optical density and the reflectivity of the light-absorbing material layer;

[0024] Figure 10 Schematic diagram of the structure of the display panel provided by another embodiment of the present application;

[0025] Figure 11 Schematic diagram of the structure of the display panel provided by another embodiment of the present application;

[0026] Figure 12 Schematic diagram of the structure of the display panel provided by another embodiment of the present application;

[0027] Figure 13 Schematic diagram of the structure of the display panel provided by another embodiment of the present application;

[0028] Figure 14 Schematic diagram of the structure of the display panel provided by another embodiment of the present application;

[0029] Figure 15 Schematic diagram of the structure of the display panel provided by another embodiment of the present application;

[0030] Figure 16 Schematic diagram of the structure of the display panel provided by another embodiment of the present application;

[0031] Figure 17 Schematic diagram of the relative positions of the second sub-part in the electrical connection structure and the conductive structure that electrically connects the light-emitting element and the second sub-part in the display panel provided by an embodiment of the present application;

[0032] Figure 18 Schematic diagram of the relative positions of the second sub-part of the electrical connection structure and the conductive structure that electrically connects the light-emitting element and the second sub-part in the display panel provided by another embodiment of the present application;

[0033] Figure 19 Schematic diagram of the structure of the display panel provided by another embodiment of the present application;

[0034] Figure 20 Schematic diagram of the relative positions of the second sub-part of the electrical connection structure and the conductive structure that electrically connects the light-emitting element and the second sub-part in the display panel provided by yet another embodiment of the present application;

[0035] Figure 21 Schematic diagram of the structure of the display panel provided by yet another embodiment of the present application;

[0036] Figure 22 In the display panel provided by another embodiment of the present application, a schematic diagram of the relative positions of the second sub-part of the electrical connection structure and the conductive structure that electrically connects the light-emitting element and the second sub-part;

[0037] Figure 23 A schematic diagram of the structure of the display panel provided by another embodiment of the present application;

[0038] Figure 24 A schematic diagram of the structure of the display panel provided by another embodiment of the present application;

[0039] Figure 25 A schematic diagram of the structure of the display panel provided by another embodiment of the present application;

[0040] Figure 26 A schematic diagram of the structure of the display panel provided by another embodiment of the present application;

[0041] Figure 27 A schematic diagram of the structure of the display device provided by an embodiment of the present application. Detailed implementation manners

[0042] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present application.

[0043] In the following description, many specific details are set forth in order to fully understand the present application. However, the present application may be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0044] As described in the background art section, poor contact often occurs during the production of existing Micro LED display panels.

[0045] Such as Figure 1 and Figure 2 shown, Figure 2 is Figure 1Cross-sectional view along EE1. Currently, the Micro LED display panel includes: a first substrate 01; a control circuit layer located on the first side of the first substrate 01, the control circuit layer including a plurality of thin film transistors 02; a first electrode layer located on the side of the control circuit layer away from the first substrate 01, the first electrode layer including a plurality of first electrodes 03, the first electrodes 03 being electrically connected to the thin film transistors 02 in the control circuit layer; an organic layer 04 located on the side of the first electrode layer away from the control circuit layer; a second electrode layer located on the side of the organic layer 04 away from the first electrode layer, the second electrode layer including a plurality of second electrodes 05, the second electrodes 05 being electrically connected to the first electrodes 03 through vias; a Micro LED light-emitting layer located on the side of the second electrode layer away from the first electrode layer, the Micro LED light-emitting layer including a plurality of Micro LED light-emitting units 06, the Micro LED light-emitting units 06 being electrically connected to the second electrodes 05.

[0046] Currently, when realizing the electrical connection between the second electrode 05 and the first electrode 03, usually a photoresist layer is first formed on the side of the organic layer 04 away from the first electrode layer, the photoresist layer having a photoresist pattern, and then, using the photoresist layer as a mask, a plurality of through holes are formed in the organic layer 04, so that when forming the second electrode layer, it is convenient for the second electrode 05 to be electrically connected to the first electrode 03 through the through holes.

[0047] The inventor's research found that when etching the organic layer 04 to form through holes using the photoresist layer as a mask, residues are likely to be generated in the through holes of the organic layer 04, resulting in poor contact between the second electrode 05 and the first electrode 03, and further causing poor contact during the production of the Micro LED display panel, affecting the yield of the Micro LED display panel.

[0048] In addition, continuing as Figure 1 and Figure 2 shown, when the second electrode 05 is electrically connected to the first electrode 03 through the through holes located in the organic layer 04, unevenness is likely to occur on the partial surface of the second electrode 05 above the through holes, so that when forming the electrical connection components between the Micro LED light-emitting units 06 and the second electrode 05, the electrical connection positions of the second electrode 05 and the first electrode 03 need to be staggered, and further resulting in an increase in the area of the second electrode 05, affecting the light extraction efficiency and area of the Micro LED display panel.

[0049] In view of this, an embodiment of the present application provides a display panel, as Figure 3 shown, the display panel includes:

[0050] The first substrate 10;

[0051] A control circuit layer 11 located on the first side of the first substrate 10. The control circuit layer includes a light-emitting control circuit. Optionally, the light-emitting control circuit includes a plurality of thin-film transistors;

[0052] A first planarization layer 12 located on the side of the control circuit layer 11 away from the first substrate 10. The first planarization layer 12 includes a planar portion 121 and a plurality of protruding portions 122. Along the first direction X, the maximum distance h1 from the planar portion 121 to the first substrate 10 is less than the maximum distance h2 from the protruding portion 122 to the first substrate 10. The first direction X is perpendicular to the plane where the first substrate 10 is located;

[0053] An electrical connection structure 13 located on the side of the first planarization layer 12 away from the first substrate 10. The electrical connection structure 13 includes a first portion 131 overlapping with the planar portion 121 along the first direction X and a second portion 132 overlapping with the protruding portion 122;

[0054] A light-emitting element 14 located on the side of the first planarization layer 13 away from the first substrate 10. The first portion 131 is electrically connected to the light-emitting control circuit, and the second portion 132 is electrically connected to the light-emitting element 14. Optionally, the light-emitting element 14 is a Micro LED, and the first portion 131 is electrically connected to the light-emitting control circuit by direct contact;

[0055] A second planarization layer 15 located on the side of the light-emitting element 14 close to the electrical connection structure. The second planarization layer 15 covers the first portion 131 and exposes at least part of the second portion 132 to facilitate the electrical connection between the light-emitting element 14 and the second portion 132 of the electrical connection structure 13. Optionally, the light-emitting element 14 is electrically connected to the second portion 132 of the electrical connection structure 13 by direct contact.

[0056] Optionally, on the basis of the above embodiments, in an embodiment of the present application, the display panel further includes: a buffer layer 16 located between the first substrate 10 and the control circuit layer 11, a packaging layer 17 for packaging the light-emitting element, and a cover plate 18 located on the side of the packaging layer 17 away from the first substrate 10.

[0057] On the basis of the above embodiments, in an embodiment of the present application, as Figure 4As shown, the first planarization layer 12 includes a stacked first sub-planarization layer 1201 and a first sub-planarization layer 1202. The first sub-planarization layer 1202 is located on the side of the first sub-planarization layer 1201 away from the first substrate 10. Among them, the first sub-planarization layer 1201 only includes a planar portion, and the first sub-planarization layer 1202 includes a planar portion and a plurality of protruding portions, so that the first planarization layer 12 includes a planar portion and a plurality of protruding portions.

[0058] In another embodiment of the present application, as Figure 5 shown, the first planarization layer 12 may also only include one planarization layer, and this layer of planarization layer includes a planar portion and a plurality of protruding portions. The present application does not limit this, and it depends on the specific situation.

[0059] Optionally, based on any of the above embodiments, in an embodiment of the present application, the first planarization layer is fabricated using a Half Tone process (halftone mask process) to simultaneously complete the fabrication of the planar portion and the protruding portions in the first planarization layer. However, the present application does not limit this, and it depends on the specific situation.

[0060] In the display panel provided by the embodiments of the present application, when realizing the electrical connection between the light-emitting element and the light-emitting control circuit, instead of providing a through hole in the first planarization layer, a protruding portion protruding from the planar portion is provided in the first planarization layer, so that a part of the electrical connection structure for electrically connecting the light-emitting element and the light-emitting control circuit is located on the planar portion, and a part is located on the protruding portion. Furthermore, the light-emitting element can be directly electrically connected to the part of the electrical connection structure located on the surface of the protruding portion, avoiding the problem that when a through hole is formed in the first planarization layer, there is etching residue in the through hole, resulting in poor contact between the electrical connection structure and the light-emitting control circuit, and thus avoiding the phenomenon of poor contact during the fabrication of the display panel.

[0061] Moreover, in the display panel provided by the embodiments of the present application, when realizing the electrical connection between the light-emitting element and the light-emitting control circuit, instead of providing a through hole in the first planarization layer, a protruding portion 122 protruding from the planar portion 121 is provided in the first planarization layer 12, as Figure 4 shown, so that a part of the electrical connection structure 13 for electrically connecting the light-emitting element 14 and the light-emitting control circuit is located on the planar portion 121, and a part is located on the protruding portion 122, which can improve the planarization degree of the part of the electrical connection structure 13 located on the surface of the protruding portion 122, so that the electrical connection position between the light-emitting element 14 and the electrical connection structure 13 can be directly located above the protruding portion 122, thereby reducing the area of the electrical connection structure 13, improving the light-emitting efficiency of the display panel, and improving the resolution of the display panel under the condition of the same display area.

[0062] It should be noted that in actual work, the control circuit layer includes multiple metal layers, and the metal layers have a very high reflection effect on external ambient light, so that light crosstalk phenomenon will occur when the display panel displays an image, forming a halo and affecting the display effect.

[0063] Specifically, as Figure 6 shown, when external ambient light enters the display panel, it is reflected by the multiple metal layers to form light rays A, B, C, and D. Among them, light ray A directly exits from above the light-emitting element and will not cause crosstalk; light ray B will irradiate the interface between the surface of the display panel and the air, and after the reflection angle is greater than 40°, total reflection occurs, and it irradiates the light-emitting element and scatters; light ray C irradiates the interface between the surface of the display panel and the air, and after the reflection angle is greater than 40°, total reflection occurs, it irradiates the surface of the control circuit layer, and after reflection, it irradiates the interface between the surface of the display panel and the air again, and scattering or specular reflection occurs; after being reflected by the control circuit layer, light ray D either irradiates the light-emitting element and is scattered, or irradiates the interface between the surface of the display panel and the air and total reflection occurs.

[0064] Among the above four light rays, only light ray A will not cause crosstalk, and light rays B, C, and D will all cause halos and affect the display effect.

[0065] Moreover, when external ambient light enters the display panel and is reflected back and forth inside the display panel, it will also exit from the edge of the display area of the display panel, increasing the light output at the edge of the display area of the display panel, resulting in a phenomenon that the periphery inside the display panel is bright.

[0066] The inventor has found through research that an anti-reflection film layer can be attached to the surface of the display panel. For example, the reflection on the surface of the display panel can be reduced by attaching a polarizer, or by attaching a color film, or by attaching an anti-glare film (such as an AR film). However, these methods will increase the cost of the display panel, and moreover, pasting a film on the surface of the display panel will reduce the light output efficiency of the display panel.

[0067] Based on this, on the basis of any of the above embodiments, in an embodiment of the present application, as Figure 7As shown, the second planarization layer 15 is a light-absorbing material layer. When external ambient light enters the interior of the display panel and is reflected by the metal layer in the control circuit layer 11, it will be absorbed by this light-absorbing material layer of the second planarization layer 15, thereby preventing the light reflected by the metal layer from reflecting back and forth inside the display panel and generating a halo phenomenon, which affects the display effect of the display panel. At the same time, it reduces the amount of light that is reflected back and forth when external ambient light enters the interior of the display panel and is transmitted to the edge of the display area of the display panel, solving the problem of the four sides of the display area of the display panel being bright.

[0068] As Figure 8 shown, in the display panel provided by the embodiment of the present application, when external ambient light enters the interior of the display panel and is reflected by the multi-layer metal layer to form light rays A, B, C, and D, after light rays B, C, and D are reflected to the control circuit layer, they are then reflected back to the surface of the display panel. During this process, light rays B, C, and D will pass through this light-absorbing material layer of the second planarization layer 15 at least twice and be absorbed.

[0069] As Figure 9 shown, Figure 9 shows a schematic curve diagram of the optical density and reflectivity of the light-absorbing material layer. From Figure 9 it can be seen that the greater the optical density of the light-absorbing material layer, the smaller its reflectivity. When the optical density of the light-absorbing material layer is greater than 1.2, the reflectivity of the light-absorbing material layer can be reduced to 7%, which can cause light rays B, C, and D to be almost completely absorbed when passing through the light-absorbing material layer twice.

[0070] Optionally, in an embodiment of the present application, the light-absorbing material layer is a black organic film layer to enable the light-absorbing material layer to have a better light-absorbing effect. Specifically, in an embodiment of the present application, the light-absorbing material layer can block 94.5%-96.4% of the light reflected by the control circuit layer, but the present application does not limit this, and it depends on the specific situation.

[0071] On the basis of any of the above embodiments, in an embodiment of the present application, as Figure 3 , Figure 4 and Figure 7 shown, the second planarization layer 15 also extends to cover the side wall of the convex portion 122 to further reduce the amount of light that does not exit directly above the light-emitting element 14 when external ambient light enters the interior of the display panel, reduce light crosstalk, and improve the display effect.

[0072] Since the black organic film layer is likely to leave residues in the pits, when the second planarization layer is a black organic film layer, on the basis of any of the above embodiments, in an embodiment of the present application, continue as Figure 7As shown, along the first direction X, the maximum distance h3 between the second planarization layer 15 and the first substrate 10 is not greater than the maximum distance h2 between the convex portion 122 of the first planarization layer 12 and the first substrate 10, so that the surface of the second planarization layer 15 away from the first substrate 10 is not higher than the surface of the convex portion 122 of the first planarization layer 12 away from the first substrate 10, thereby reducing the probability of residue formation on the surface of the convex portion 122 during the formation of the second planarization layer 15.

[0073] Moreover, along the first direction X, the maximum distance h3 between the second planarization layer 15 and the first substrate 10 is not greater than the maximum distance h2 between the convex portion 122 of the first planarization layer 12 and the first substrate 10, making the surface of the second planarization layer 15 away from the first substrate 10 not higher than the surface of the convex portion 122 of the first planarization layer 12 away from the first substrate 10. It also facilitates the electrical connection between the light-emitting element 14 and the part of the electrical connection structure 13 located on the surface of the convex portion 122. At the same time, it is beneficial to make the interface where the light-emitting element 14 is electrically connected to the electrical connection structure 13 a plane, so that the electrical connection position between the electrical connection structure 13 and the light-emitting element 14 can be located above the convex portion 122, without the need to increase the area of the electrical connection structure 13 additionally on the plane where the electrical connection structure 13 is located and away from the light-emitting element 14 in order to avoid the electrical connection position between the light-emitting element 14 and the electrical connection structure 13 from avoiding the convex portion 122. Thereby, the area of the electrical connection structure 13 is reduced, the light-emitting efficiency of the display panel is improved, and the resolution of the display panel is improved under the condition of the same display area.

[0074] It should be noted that when, in order to avoid the electrical connection position between the light-emitting element 14 and the electrical connection structure 13 from avoiding the convex portion 122, the area of the electrical connection structure 13 is additionally increased on the plane where the electrical connection structure 13 is located and towards the light-emitting element 14 (i.e., making the electrical connection position between the electrical connection structure 13 and the light-emitting element 14 be directly below the light-emitting element 14), although the additionally increased area of the electrical connection structure 13 is smaller compared to the case where the area of the electrical connection structure 13 is additionally increased on the plane where the electrical connection structure 13 is located and away from the light-emitting element 14, it will still cause an increase in the area of the electrical connection structure. Moreover, in order to avoid short-circuiting between the positive and negative electrodes of the light-emitting element, the occupied area of the electrical connection structure on the plane where the electrical connection structure is located is still relatively large.

[0075] Optionally, on the basis of the above embodiment, in an embodiment of the present application, continue as Figure 7As shown, along the first direction X, the maximum distance h3 between the second planarization layer 15 and the first substrate 10 is less than the maximum distance h2 between the protruding portion 122 of the first planarization layer 12 and the first substrate 10, so that the surface of the second planarization layer 15 away from the first substrate 10 is lower than the surface of the protruding portion 122 of the first planarization layer 12 away from the first substrate 10, thereby further reducing the probability of residue formation on the surface of the protruding portion 122 during the formation of the second planarization layer 15. At the same time, it facilitates the electrical connection between the light-emitting element 14 and the portion of the electrical connection structure 13 located on the surface of the protruding portion 122. At the same time, it is beneficial to make the interface for the electrical connection between the light-emitting element 14 and the electrical connection structure 13 a plane, so that the electrical connection position between the electrical connection structure 13 and the light-emitting element 14 can be located above the protruding portion 122, reducing the area of the electrical connection structure 13, improving the light-emitting efficiency of the display panel, and improving the resolution of the display panel under the condition of the same display area.

[0076] Based on any of the above embodiments, in an embodiment of the present application, as Figure 10 shown, the second part 132 of the electrical connection structure 13 includes a first sub-part 1321 located on the side wall of the protruding portion 122 and a second sub-part 1322 located on the surface of the protruding portion 122 away from the first substrate 10; in this embodiment, as Figure 11 shown, the light-emitting element 14 includes a first electrode, the electrical connection structure includes a first electrical connection structure 1301, and the first electrode is electrically connected to the second part 1322 of the first electrical connection structure 1301 through a first conductive structure 19. Along the first direction X, the first conductive structure 19 and the second sub-part 1322 of the first electrical connection structure 1301 at least partially overlap, so that the electrical connection position between the light-emitting element 14 and the first electrical connection structure 1301 is at least partially located above the protruding portion 122, thereby reducing the area of the first electrical connection structure 1301, improving the light-emitting efficiency of the display panel, and improving the resolution of the display panel under the condition of the same display area.

[0077] Optionally, based on the above embodiments, in an embodiment of the present application, continue as Figure 11As shown, along the first direction X, the projection of the first conductive structure 19 on the first substrate 10 is within the projection range of the second sub-part 1322 of the first electrical connection structure 1301 on the first substrate 10, so that all the electrical connection positions between the light-emitting element 14 and the first electrical connection structure 1301 are located above the raised portion 122, thereby minimizing the area of the electrical connection structure to improve the light-emitting efficiency of the display panel, and improving the resolution of the display panel under the condition of the same display area.

[0078] Specifically, in an embodiment of the present application, the first conductive structure is a first eutectic layer that electrically connects the light-emitting element and the first electrical connection structure.

[0079] Based on any of the above embodiments, in an embodiment of the present application, as Figure 12 shown, the light-emitting element 14 includes a second electrode, the electrical connection structure includes a second electrical connection structure 1302, the second electrode is electrically connected to the second electrical connection structure 1302 through a second conductive structure 20, and the second conductive structure 20 at least partially overlaps with the second sub-part 1322 of the second electrical connection structure 1302, so that at least part of the electrical connection position between the light-emitting element 14 and the second electrical connection structure 1302 is located above the raised portion 122, thereby reducing the area of the second electrical connection structure 1302, improving the light-emitting efficiency of the display panel, and improving the resolution of the display panel under the condition of the same display area.

[0080] Optionally, based on the above embodiments, in an embodiment of the present application, continuing as Figure 12 shown, along the first direction X, the projection of the second conductive structure 20 on the first substrate 10 is within the projection range of the second sub-part 1322 of the second electrical connection structure 1302 on the first substrate 10, so that all the electrical connection positions between the light-emitting element 14 and the second electrical connection structure 1302 are located above the raised portion 122, thereby minimizing the area of the electrical connection structure to improve the light-emitting efficiency of the display panel, and improving the resolution of the display panel under the condition of the same display area.

[0081] Specifically, in an embodiment of the present application, the second conductive structure is a second eutectic layer that electrically connects the light-emitting element and the second electrical connection structure.

[0082] Based on any of the above embodiments, in an embodiment of the present application, the first electrode is the positive electrode of the light-emitting element, and the second electrode is the negative electrode of the light-emitting element. However, the present application does not limit this. In other embodiments of the present application, the first electrode is the negative electrode of the light-emitting element, and the second electrode is the positive electrode of the light-emitting element, which depends on the specific situation.

[0083] Optionally, in an embodiment of the present application, along the first direction, continue as Figure 11 and Figure 12 shown, the first electrode of the light-emitting element 14 is electrically connected to the first conductive structure 19 of the first electrical connection structure 1301, and at least a part of the second sub-part 1322 of the first electrical connection structure 1301 overlaps. Also, the second electrode of the light-emitting element 14 is electrically connected to the second conductive structure 20 of the second electrical connection structure 1302, and at least a part of the second sub-part 1322 of the second electrical connection structure 1302 overlaps. Thus, the electrical connection position of the light-emitting element 14 with the second electrical connection structure 1302 and the electrical connection position of the light-emitting element 14 with the first electrical connection structure 1301 are both at least partially located above the protruding portion 122, thereby further reducing the area of the electrical connection structure, improving the light-emitting efficiency of the display panel, and increasing the resolution of the display panel under the same display area. However, the present application does not limit this. In other embodiments of the present application, only one of the first electrode and the second electrode of the light-emitting element may be disposed above the protruding portion, which depends on the specific situation.

[0084] Based on any of the above embodiments, in an embodiment of the present application, continue as Figure 3 shown, the display panel further includes: a connection electrode layer 21, the connection electrode layer 21 is located on the side of the second planarization layer 15 away from the first substrate 10, and the connection electrode layer 21 is located on the side of the light-emitting element 14 close to the first substrate 10. In this embodiment, the connection electrode layer includes connection electrodes, as Figure 13As shown, the connecting electrode includes a first connecting electrode 211, and the light-emitting element 14 includes a first electrode, and the first electrode is electrically connected to the first connecting electrode 211 to be electrically connected to the electrical connection structure through the first connecting electrode 211. Specifically, in this embodiment, the second part 132 of the electrical connection structure includes a first sub-part 1321 located on the side wall of the convex part 122 and a second sub-part 1322 located on the surface of the convex part 122 away from the first substrate 10. The electrical connection structure includes a first electrical connection structure 1301, and the first connecting electrode 211 is electrically connected to the first electrical connection structure 1301, and the first connecting electrode 211 and the second sub-part 1322 of the first electrical connection structure 1301 at least partially overlap, so that the first connecting electrode 211 realizes the electrical connection between the light-emitting element 14 and the first electrical connection structure 1301 by electrically connecting the first electrode of the light-emitting element 14 to the second sub-part 1322 of the first electrical connection structure 1301. It should be noted that in the above embodiment, the first electrode of the light-emitting element 14 is electrically connected to the first connecting electrode 211 through a third conductive structure 22.

[0085] Based on the above embodiment, in an embodiment of the present application, continue as Figure 13 As shown, the connecting electrode layer further includes a second connecting electrode 212, and the light-emitting element 14 includes a second electrode, and the second electrode is electrically connected to the second connecting electrode 212 to be electrically connected to the electrical connection structure through the second connecting electrode 212. Specifically, in this embodiment, the second part 132 of the electrical connection structure includes a first sub-part 1321 located on the side wall of the convex part 122 and a second sub-part 1322 located on the surface of the convex part 122 away from the first substrate 10. The electrical connection structure includes a second electrical connection structure 1302, and the second connecting electrode 212 is electrically connected to the second electrical connection structure 1302, and the second connecting electrode 212 and the second sub-part 1322 of the second electrical connection structure 1302 at least partially overlap, so that the second connecting electrode 212 realizes the electrical connection between the light-emitting element 14 and the second electrical connection structure 1302 by electrically connecting the second electrode of the light-emitting element 14 to the second sub-part 1322 of the second electrical connection structure 1322.

[0086] It should be noted that in the above embodiment, continue as Figure 13 As shown, the second electrode of the light-emitting element 14 is electrically connected to the second connecting electrode 212 through a sixth conductive structure 23. [[ID=X]] [[ID=X]]

[0087] Based on the above embodiment, in an embodiment of the present application, continue as Figure 13As shown, the projection of the third conductive structure 22 on the first substrate 10 at least partially overlaps with the projection of the convex portion 122 on the first substrate 10, and the projection of the sixth conductive structure 23 on the first substrate 10 at least partially overlaps with the projection of the convex portion 122 on the first substrate 10.

[0088] In another embodiment of the present application, as Figure 14 shown, the projection of the third conductive structure 22 on the first substrate 10 does not overlap with the projection of the convex portion 122 on the first substrate 10, and the projection of the sixth conductive structure 23 on the first substrate 10 at least partially overlaps with the projection of the convex portion 122 on the first substrate 10, or, as Figure 15 shown, the projection of the third conductive structure 22 on the first substrate 10 at least partially overlaps with the projection of the convex portion 122 on the first substrate 10, and the projection of the sixth conductive structure 23 on the first substrate 10 does not overlap with the projection of the convex portion 122 on the first substrate 10.

[0089] In yet another embodiment of the present application, as Figure 16 shown, the projection of the third conductive structure 22 on the first substrate 10 does not overlap with the projection of the convex portion 122 on the first substrate 10, and the projection of the sixth conductive structure 23 on the first substrate 10 does not overlap with the projection of the convex portion 122 on the first substrate 10.

[0090] It should be noted that when the projection of the third conductive structure 22 on the first substrate 10 at least partially overlaps with the projection of the convex portion 122 on the first substrate 10, the third conductive structure 22 can be electrically connected to the first electrical connection structure 1301 through the first connection electrode 211, as Figure 13 shown, or can be directly electrically connected to the first electrical connection structure 1301, as Figure 11 shown; when the projection of the sixth conductive structure 23 on the first substrate 10 at least partially overlaps with the projection of the convex portion 122 on the first substrate 10, the sixth conductive structure 23 can be electrically connected to the second electrical connection structure 1302 through the second connection electrode 212, as Figure 13 shown, or can be directly electrically connected to the second electrical connection structure 1302, as Figure 12 shown. The present application does not make any limitations in this regard and depends on specific circumstances.

[0091] In one embodiment of the present application, as Figure 17As shown, the display panel further includes: a third conductive structure 22 and a fourth conductive structure 24 electrically connected to the first connection electrode 211. The first connection electrode 211 extends along the second direction Y. The third conductive structure 22 and the fourth conductive structure 24 are arranged along the second direction Y. The second direction Y is parallel to the plane of the display panel. The first electrode of the light-emitting element is electrically connected to the first connection electrode 211 through the third conductive structure 22. Based on using the third conductive structure 22 to realize the electrical connection between the first electrode and the first connection electrode 211, the fourth conductive structure 24 is used as a backup conductive structure, so that when the third conductive structure 22 is damaged, the fourth conductive structure 24 can be used to realize the electrical connection between the first electrode and the first connection electrode 211.

[0092] Optionally, based on the above embodiments, in an embodiment of the present application, continue as Figure 17 As shown, along the second direction Y, the second sub-part 1322 of the first electrical connection structure is located between the third conductive structure 22 and the fourth conductive structure 24, so as to arrange the first electrical connection structure by using the gap between the third conductive structure 22 and the fourth conductive structure 24 in the second direction Y, thereby reducing the area of the display pixel corresponding to a single light-emitting element, and further improving the resolution of the display panel under the condition of the same display area. It should be noted that in this embodiment, the second sub-part 1322 of the first electrical connection structure is located between the third conductive structure 22 and the fourth conductive structure 24 only in the second direction Y. In the first direction X, as Figure 16 shown, Figure 16 is Figure 17 a cross-sectional view along the A1A2 direction. The third conductive structure 22 and the fourth conductive structure are located on the same layer, and the first electrical connection structure 1301 and the third conductive structure 22 are located on different layers.

[0093] Based on any of the above embodiments, in an embodiment of the present application, continue as Figure 17As shown, the display panel further includes: a sixth conductive structure 23 and a seventh conductive structure 25 electrically connected to the second connection electrode 212. The second connection electrode 212 extends along the second direction Y. The sixth conductive structure 23 and the seventh conductive structure 25 are arranged along the second direction Y. The second direction Y is parallel to the plane of the display panel. The second electrode of the light-emitting element is electrically connected to the second connection electrode 212 through the sixth conductive structure 23. Based on using the sixth conductive structure 23 to realize the electrical connection between the second electrode and the second connection electrode 212, the seventh conductive structure 25 is used as a backup conductive structure, so that when the sixth conductive structure 23 is damaged, the electrical connection between the second electrode and the second connection electrode 212 can be realized by using the seventh conductive structure 25.

[0094] Optionally, based on the above embodiments, in an embodiment of the present application, continue as Figure 17 As shown, along the second direction Y, the second sub-part 1322 of the second electrical connection structure is located between the sixth conductive structure 23 and the seventh conductive structure 25. In the second direction Y, the gap between the sixth conductive structure 23 and the seventh conductive structure 25 is used to arrange the second sub-part 1322 of the second electrical connection structure, so as to reduce the area of the display pixel corresponding to a single light-emitting element, and further improve the resolution of the display panel under the condition of the same display area. It should be noted that in this embodiment, the second sub-part of the second electrical connection structure is located between the sixth conductive structure 23 and the seventh conductive structure 25 only in the second direction Y. The second sub-part 1322 of the second electrical connection structure is located between the sixth conductive structure 23 and the seventh conductive structure 25. In the first direction X, as Figure 16 shown Figure 16 is Figure 17 a cross-sectional view along the A1A2 direction. The sixth conductive structure 23 and the seventh conductive structure are located on the same layer, and the second sub-part of the second electrical connection structure and the sixth conductive structure 23 are located on different layers.

[0095] In another embodiment of the present application, as Figure 18 shown, the display panel further includes: a third conductive structure 22 and a fourth conductive structure 24 electrically connected to the first connection electrode 211. The first connection electrode 211 extends along the second direction Y. The third conductive structure 22 and the fourth conductive structure 24 are arranged along the second direction Y. The second direction Y is parallel to the plane of the display panel. The first electrode of the light-emitting element is electrically connected to the first connection electrode 211 through the third conductive structure 22. In this embodiment, as Figure 19 shown Figure 19 is Figure 18A cross-sectional view along the B1B2 direction. Along the first direction X, the second sub-part 1322 of the first electrical connection structure 1301 at least partially overlaps with the third conductive structure 22. By at least partially disposing the second sub-part 1322 of the first electrical connection structure 1301 below the third conductive structure 22, the area of the display pixel corresponding to a single light-emitting element 14 is reduced, thereby improving the resolution of the display panel under the condition of the same display area.

[0096] Optionally, on the basis of the above embodiments, in an embodiment of the present application, continue as Figure 18 and Figure 19 shown, along the first direction X, the projection of the second sub-part 1322 of the first electrical connection structure 1301 on the first substrate 10 is within the projection range of the third conductive structure 22 on the first substrate 10, that is, along the first direction X, the third conductive structure 22 covers the second sub-part 1322 of the first electrical connection structure 1301, so as to further reduce the area of the display pixel corresponding to a single light-emitting element.

[0097] On the basis of any of the above embodiments, in an embodiment of the present application, continue as Figure 18 shown, the display panel further includes: a sixth conductive structure 23 and a seventh conductive structure 25 electrically connected to the second connection electrode 212. The second connection electrode 212 extends along the second direction Y. The sixth conductive structure 23 and the seventh conductive structure 25 are arranged along the second direction Y. The second direction Y is parallel to the plane of the display panel. The second electrode of the light-emitting element is electrically connected to the second connection electrode 212 through the sixth conductive structure 23. In this embodiment, as Figure 19 shown, Figure 19 For Figure 18 a cross-sectional view along the B1B2 direction. Along the first direction X, the second sub-part 1322 of the second electrical connection structure 1302 at least partially overlaps with the sixth conductive structure 23. By at least partially disposing the second sub-part 1322 of the second electrical connection structure 1302 below the sixth conductive structure 23, the area of the display pixel corresponding to a single light-emitting element 14 is reduced, thereby improving the resolution of the display panel under the condition of the same display area.

[0098] Optionally, on the basis of the above embodiments, in an embodiment of the present application, continue as Figure 18 and Figure 19As shown, along the first direction X, the projection of the second sub - part 1322 of the second electrical connection structure 1302 on the first substrate 10 is within the projection range of the sixth conductive structure 23 on the first substrate 10. That is, along the first direction X, the sixth conductive structure 23 covers the second sub - part 1322 of the second electrical connection structure 1302, so as to further reduce the area of the display pixel corresponding to a single light - emitting element.

[0099] In another embodiment of the present application, as Figure 20 and Figure 21 shown, Figure 21 is Figure 20 a cross - sectional view along the C1C2 direction. Along the first direction X, the second sub - part 1322 of the first electrical connection structure 1301 and the fourth conductive structure 24 at least partially overlap, and the second sub - part 1322 of the second electrical connection structure 1302 and the sixth conductive structure 23 at least partially overlap. By disposing at least a part of the second sub - part 1322 of the first electrical connection structure 1301 below the fourth conductive structure 24 and disposing a part of the second sub - part 1322 of the second electrical connection structure 1302 below the sixth conductive structure 23, the area of the display pixel corresponding to a single light - emitting element 14 is reduced, and thus, the resolution of the display panel is improved under the condition of the same display area.

[0100] Optionally, on the basis of the above - mentioned embodiments, in an embodiment of the present application, continue as Figure 20 and Figure 21 shown. Along the first direction X, the projection of the second sub - part 1322 of the first electrical connection structure 1301 on the first substrate 10 is within the projection range of the fourth conductive structure 24 on the first substrate 10, and the projection of the second sub - part 1322 of the second electrical connection structure 1302 on the first substrate 10 is within the projection range of the sixth conductive structure 23 on the first substrate 10. That is, along the first direction X, the fourth conductive structure 24 covers the second sub - part 1322 of the first electrical connection structure 1301, and the sixth conductive structure 23 covers the second sub - part 1322 of the second electrical connection structure 1302, so as to further reduce the area of the display pixel corresponding to a single light - emitting element.

[0101] In the above - mentioned several embodiments, the display panel not only includes a third conductive structure that electrically connects the first electrode and the second sub - part of the first electrical connection structure, but also includes a fourth conductive structure as a spare conductive structure. This is not limited in the present application. In other embodiments of the present application, the display panel may also not include a spare conductive structure. The case where the display panel does not include a spare conductive structure is described below.

[0102] like Figure 22 and Figure 23 As shown, in one embodiment of the present application, the first electrode of the light-emitting element 14 is electrically connected to the first connecting electrode 211 through the fifth conductive structure 26, and the second part of the electrical connection structure includes a first sub-portion 1321 located on the side wall of the protrusion 122 and a second sub-portion 1322 located on the side of the side wall of the protrusion 122 away from the first substrate 10. In this embodiment, the electrical connection structure includes a first electrical connection structure 1301, and the first connecting electrode 211 is electrically connected to the first electrical connection structure 1301. Along the first direction X, the fifth conductive structure 26 covers the second sub-portion 1322 of the first electrical connection structure 1301, thereby reducing the area of the display pixel corresponding to a single light-emitting element 14 by setting the fifth conductive structure 26 above the second sub-portion 1322 and making full use of the position where the second sub-portion 1322 is located to set the fifth conductive structure 26, thereby improving the resolution of the display panel under the same display area.

[0103] Similarly, continue as Figure 22 and Figure 23 As shown, the second electrode of the light-emitting element 14 is electrically connected to the second connection electrode 212 through the eighth conductive structure 27. The second part of the electrical connection structure includes a first sub-portion 1321 located on the side wall of the protrusion 122 and a second sub-portion 1322 located on the side wall of the protrusion 122 away from the first substrate 10. In this embodiment, the electrical connection structure includes a second electrical connection structure 1302, and the second connection electrode 212 is electrically connected to the second electrical connection structure 1302. Along the first direction X, the eighth conductive structure 27 covers the second sub-portion 1322 of the second electrical connection structure 1302, so that by setting the eighth conductive structure 27 above the second sub-portion 1322 of the second electrical connection structure 1302 and making full use of the position where the second sub-portion 1322 is located to set the eighth conductive structure 27, the area of the display pixel corresponding to the single light-emitting element 14 is reduced, thereby improving the resolution of the display panel under the same display area.

[0104] Based on any of the above embodiments, in one embodiment of the present application, Figure 4 As shown, the electrical connection structure 13 is directly electrically connected to the light emitting control circuit (such as a thin film transistor) in the control circuit layer 11; in another embodiment of the present application, as shown Figure 24 As shown, the electrical connection structure 13 is electrically connected to the light emitting control circuit (such as a thin film transistor) in the control circuit layer 11 through an auxiliary electrical connection structure 28. This application does not limit this and it depends on the specific situation.

[0105] Based on any of the above embodiments, in an embodiment of the present application, the first planarization layer may also be an absorbing material layer to further alleviate the problem that the light crosstalk caused by the reflected light inside the display panel affects the display effect of the display panel. However, the present application does not limit this, and it depends on the specific situation.

[0106] It should be noted that in any of the above embodiments, continue as Figure 3 shown, when the display panel includes a connection electrode layer 21 and the connection electrode layer 12 is a metal electrode layer, since the second planarization layer 15 is located on the side of the connection electrode layer 21 facing the first substrate 10, the second planarization layer 15 can only absorb the reflected light of the metal lines on the side of the second planarization layer 15 facing the first substrate 10, and cannot absorb the light reflected by the connection electrode layer 21.

[0107] Therefore, based on any of the above embodiments, in an embodiment of the present application, as Figure 25 shown, when the display panel includes a connection electrode layer 21 and the connection electrode layer 12 is a metal electrode layer, the display panel further includes:

[0108] An absorbing layer 29 located between the connection electrode layer 21 and the light-emitting element 14, and the absorbing layer 29 exposes a partial area of the connection electrode layer 21 to facilitate the electrical connection between the connection electrode layer 21 and the light-emitting element 14. Optionally, the absorbing layer is a black organic layer to improve the light absorption effect of the absorbing layer. However, the present application does not limit this. In other embodiments of the present application, the absorbing layer 29 may also be a metal layer, depending on the specific situation.

[0109] Optionally, in an embodiment of the present application, the black organic film layer is a photoresist layer, such as a positive photoresist layer or a negative photoresist layer. The present application does not limit this, and it depends on the specific situation.

[0110] Based on the above embodiments, in an embodiment of the present application, the absorbing layer 29 may cover the area between the first electrode and the second electrode of the light-emitting element, as Figure 25 shown, or may not cover the area between the first electrode and the second electrode of the light-emitting element, as Figure 26 shown, that is, the absorbing layer 29 partially covers the area between the first conductive structure 19 and the second conductive structure 20. The present application does not limit this, and it depends on the specific situation.

[0111] Specifically, based on the above embodiments, in an embodiment of the present application, when the absorbing layer is a metal layer, continue asFigure 26 As shown, the first electrode of the light-emitting element 14 is electrically connected to the first electrical connection structure 1301 of the electrical connection structure through the first conductive structure 19, and the second electrode of the light-emitting element 14 is electrically connected to the second electrical connection structure 1302 of the electrical connection structure through the second conductive structure 20. The minimum distance d1 between the light-absorbing layer 29 and the first conductive structure 19 on the side facing the first conductive structure 19 ranges from 3 microns to 10 microns, including the end values, so as to avoid short-circuiting between the light-absorbing layer 29 and the first conductive structure 19 while ensuring the light-absorbing area of the light-absorbing layer 29 and affecting the operation of the light-emitting element. Similarly, the minimum distance d2 between the light-absorbing layer 29 and the second conductive structure 20 on the side facing the second conductive structure 20 ranges from 3 microns to 10 microns, including the end values, so as to avoid short-circuiting between the light-absorbing layer and the second conductive structure while ensuring the light-absorbing area of the light-absorbing layer and affecting the operation of the light-emitting element.

[0112] Based on the above embodiments, in an embodiment of the present application, the thickness of the light-absorbing layer ranges from 0.5 microns to 3 microns, including the end values, so that the light-absorbing layer has a good light-absorbing effect. However, the present application does not limit this, and it depends on the specific situation.

[0113] It should be noted that in order to avoid short-circuiting between the light-absorbing layer and the first conductive structure / second conductive structure, the greater the thickness of the light-absorbing layer, the greater the minimum distance d1 between the light-absorbing layer 29 and the first conductive structure 19 on the side facing the first conductive structure 19, and the greater the minimum distance d2 between the light-absorbing layer 29 and the second conductive structure 20 on the side facing the second conductive structure 20.

[0114] In addition, the embodiment of the present application also provides a display device. The display device can be a mobile phone, as Figure 27 shown, or it can be a tablet computer or a notebook, etc. The present application does not limit this, and it depends on the specific situation. Specifically, in this embodiment, the display device includes the display panel provided in any of the above embodiments. Optionally, in an embodiment of the present application, the display device is a touch display device. However, the present application does not limit this, and it depends on the specific situation.

[0115] In summary, when implementing the electrical connection between the light-emitting element and the light-emitting control circuit in the display panel and the display device provided by the embodiments of the present application, instead of providing a through hole in the first planarization layer, a protruding portion protruding from the planar portion is provided in the first planarization layer, so that the electrical connection structure electrically connecting the light-emitting element and the light-emitting control circuit is partially located in the planar portion and partially located in the protruding portion. Furthermore, the light-emitting element can be directly electrically connected to the portion of the electrical connection structure located on the surface of the protruding portion, avoiding the problem that when a through hole is formed in the first planarization layer, there is etching residue in the through hole, resulting in poor contact between the electrical connection structure and the light-emitting control circuit, and thus avoiding the phenomenon of poor contact during the manufacturing process of the display panel.

[0116] In this specification, each part is described in a combined manner of parallelism and progression. The key point of each part is to illustrate the differences from other parts. For the same or similar parts among each part, reference can be made to each other.

[0117] Regarding the above description of the disclosed embodiments, the features described in each embodiment in this specification can be replaced or combined with each other, enabling those skilled in the art to implement or use the present application. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A display panel, characterized in that, Comprising: A first substrate; A control circuit layer located on a first side of the first substrate, the control circuit layer including a light-emitting control circuit; A first planarization layer located on a side of the control circuit layer away from the first substrate, the first planarization layer including a planar portion and a plurality of protrusions, along a first direction, a maximum distance from the planar portion to the first substrate is less than a maximum distance from the protrusions to the first substrate; the first direction is perpendicular to a plane where the first substrate is located; An electrical connection structure located on a side of the first planarization layer away from the first substrate, the electrical connection structure including a first portion overlapping with the planar portion along the first direction and a second portion overlapping with the protrusions; A light-emitting element located on a side of the first planarization layer away from the first substrate, the first portion is electrically connected to the light-emitting control circuit, and the second portion is electrically connected to the light-emitting element; A second planarization layer located on a side of the light-emitting element close to the electrical connection structure, the second planarization layer covers the first portion and exposes at least part of the second portion; A connection electrode layer, the connection electrode layer is located on a side of the second planarization layer away from the first substrate, and the connection electrode layer is located on a side of the light-emitting element close to the first substrate, the connection electrode layer includes a connection electrode, the connection electrode includes a first connection electrode; the light-emitting element includes a first electrode, and the first electrode is electrically connected to the first connection electrode; A third conductive structure and a fourth conductive structure electrically connected to the first connection electrode, the first connection electrode extends along a second direction, the third conductive structure and the fourth conductive structure are arranged along the second direction, and the second direction is parallel to a plane where the display panel is located; The first electrode is electrically connected to the first connection electrode through the third conductive structure.

2. The display panel according to claim 1, wherein The second planarization layer is a light-absorbing material layer.

3. The display panel according to claim 2, wherein, The second planarization layer further extends to cover sidewalls of the protrusions.

4. The display panel according to claim 1, wherein Along the first direction, a maximum distance between the second planarization layer and the first substrate is not greater than a maximum distance between the protrusions of the first planarization layer and the first substrate.

5. The display panel according to claim 1, wherein The second portion of the electrical connection structure includes a first sub-portion located on a sidewall of the protrusion and a second sub-portion located on a surface of the protrusion away from the first substrate; The light-emitting element includes a first electrode, the electrical connection structure includes a first electrical connection structure, the first electrode is electrically connected to the second portion of the first electrical connection structure through a first conductive structure, and along the first direction, the first conductive structure at least partially overlaps with the second sub-portion of the first electrical connection structure.

6. The display panel according to claim 5, wherein The light-emitting element includes a second electrode, the electrical connection structure includes a second electrical connection structure, the second electrode is electrically connected to the second electrical connection structure through a second conductive structure, and the second conductive structure at least partially overlaps with the second sub-portion of the second electrical connection structure.

7. The display panel according to claim 1, wherein The second portion of the electrical connection structure includes a first sub-portion located on a sidewall of the protrusion and a second sub-portion located on a surface of the protrusion away from the first substrate; The electrical connection structure includes a first electrical connection structure. The first connection electrode is electrically connected to the first electrical connection structure, and the first connection electrode at least partially overlaps with a second sub - portion of the first electrical connection structure.

8. The display panel according to claim 7, wherein Along the second direction, the second sub - portion of the first electrical connection structure is located between the third conductive structure and the fourth conductive structure.

9. The display panel according to claim 7, characterized in that, Along the first direction, the second sub - portion of the first electrical connection structure at least partially overlaps with the third conductive structure; or, the second sub - portion of the first electrical connection structure at least partially overlaps with the fourth conductive structure.

10. The display panel according to claim 9, wherein Along the first direction, the third conductive structure covers the second sub - portion of the first electrical connection structure; or, the fourth conductive structure covers the second sub - portion of the first electrical connection structure.

11. The display panel according to any one of claims 1-10, characterized in that, The first planarization layer is a light - absorbing material layer.

12. A display device, characterized in that, Comprising the display panel according to claims 1 - 11.

Images