Display panel and display device

Abstract

Embodiments of the present invention provide a display panel and a display device, relating to the field of display technology, and improving the production capacity and performance of the display panel. The display panel includes: an optical component setting area, a transition area, and a first display area, a first light-emitting element located in the optical component setting area; a first pixel circuit located in the transition area; a first connecting line, a first end of which is electrically connected to the first pixel circuit and a second end of which is electrically connected to the first light-emitting element, and the first connecting line extends at least from the edge of the optical component setting area to the interior of the optical component setting area; a second connecting line, at least the second end of a portion of the first connecting line is electrically connected to the first light-emitting element through the second connecting line, and the second connecting line overlaps with at least one first connecting line; the second connecting line and the first connecting line are arranged in a different layer, and the film thickness of the second connecting line is less than or equal to the film thickness of the first connecting line.

Description

Technical field

[0001] The present invention relates to the field of display technology, and in particular to a display panel and a display device. [Background Technology]

[0002] In related technologies, at least one optical component setting area can be set inside the display area of ​​the display panel, and then optical components such as cameras can be placed under the screen of the optical component setting area to better achieve a full-screen design.

[0003] To further optimize the display and light transmission performance of the optical component placement area, light-emitting elements can be placed in the optical component placement area, while the pixel circuits corresponding to these light-emitting elements are placed outside the frame area. However, this design will affect the production capacity of the display panel, resulting in a decrease in production capacity. [Summary of the invention]

[0004] In view of this, embodiments of the present invention provide a display panel and a display device to improve the production capacity and performance of the display panel.

[0005] In one aspect, an embodiment of the present invention provides a display panel, including:

[0006] An optical component setting area, a transition area and a first display area, wherein the transition area surrounds the optical component setting area, and the first display area surrounds the display area;

[0007] A first light-emitting element is located in the optical component setting area;

[0008] A first pixel circuit is located in the transition area;

[0009] a first connecting line, wherein a first end of the first connecting line is electrically connected to the first pixel circuit, a second end of the first connecting line is electrically connected to the first light-emitting element, and the first connecting line extends at least from an edge of the optical component placement area to an interior of the optical component placement area;

[0010] a second connecting line, wherein at least a portion of the second ends of the first connecting lines are electrically connected to the first light-emitting element through the second connecting line, and the second connecting line overlaps with at least one of the first connecting lines;

[0011] The second connecting line and the first connecting line are provided in different layers, and a thickness of the second connecting line is less than or equal to a thickness of the first connecting line.

[0012] On the other hand, an embodiment of the present invention provides a display device including the above-mentioned display panel.

[0013] One of the above technical solutions has the following beneficial effects:

[0014] Based on the arrangement of the first and second connecting lines, the first connecting line is the main connecting line leading from the first pixel circuit to the first light-emitting element, while the second connecting line is merely a bridge connecting line connecting the first connecting line and the first light-emitting element. The second connecting line is mainly used to avoid other first connecting lines, thereby preventing short circuits between multiple first connecting lines. It can be understood that for the above two types of connecting lines, the first connecting line generally has a longer extension length, while the second connecting line generally has a shorter extension length.

[0015] In this regard, the embodiment of the present invention matches the film thickness and length of the first connecting line and the second connecting line based on the difference in extension length between the two. The embodiment of the present invention sets a larger film thickness for the generally longer first connecting line and a smaller film thickness for the generally shorter second connecting line. The larger film thickness can be used to reduce the surface resistance of the first connecting line, while the smaller film thickness can be used to increase the surface resistance of the second connecting line. In this way, the load difference between the two can be weakened, so that the loads of the two tend to be consistent, thereby optimizing product performance. At the same time, the smaller film thickness of the second connecting line can also reduce the film forming time of the second connecting line. For example, when the second connecting line is formed by a sputtering process, the thinner the second connecting line, the shorter the sputtering time, and accordingly, the shorter the film forming time. At this time, the entire process time of the display panel can be shortened, the number of display panels produced per unit time can be increased, and the production capacity can be increased, and the production cost of the display panel can also be reduced.

Brief Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 A top view of a display panel provided by an embodiment of the present invention;

[0018] Figure 2 A schematic diagram of a partial structure of a display panel provided by an embodiment of the present invention;

[0019] Figure 3 for Figure 2 A cross-sectional view along the A1-A2 direction;

[0020] Figure 4 A schematic diagram of another partial structure of a display panel provided by an embodiment of the present invention;

[0021] Figure 5 for Figure 4A cross-sectional view along the B1-B2 direction;

[0022] Figure 6 A schematic diagram of another partial structure of a display panel provided by an embodiment of the present invention;

[0023] Figure 7 for Figure 6 A cross-sectional view along the C1-C2 direction;

[0024] Figure 8 A schematic diagram of another partial structure of a display panel provided by an embodiment of the present invention;

[0025] Figure 9 A schematic structural diagram of a display device provided by an embodiment of the present invention. [Specific implementation method]

[0026] In order to better understand the technical solution of the present invention, the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0027] It should be understood that the embodiments described are only a portion of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative work are within the scope of protection of the present invention.

[0028] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The singular forms "a", "an", "the" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise.

[0029] It should be understood that the term "and / or" as used herein is merely a description of the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0030] As described in the background technology, when the display area of ​​the display panel includes an optical component setting area, a light-emitting element can be set in the optical component setting area to optimize the full-screen display effect. At the same time, the pixel circuit electrically connected to this part of the light-emitting element can also be externalized to the border area to ensure that the optical component setting area has a high light transmittance and optimize its imaging effect.

[0031] It is understood that when this portion of the pixel circuit is externally located in the frame area, it needs to be electrically connected to the light-emitting elements in the optical component placement area via connecting wires. Due to the large number of connecting wires required, in one related design, the connecting wires can be wired in two or more layers to reduce the risk of short circuits between the connecting wires.

[0032] However, during the research process, the inventors discovered that when the connecting lines adopt the above-mentioned design, in the process of the display panel, not only is it necessary to add a composition process for forming double-layer or multi-layer connecting lines, but it is also necessary to add a composition process for forming an insulating layer between two adjacent layers of connecting lines. This will increase the process time of the display panel, reduce the number of display panels produced per unit time, and thus lead to a decrease in the production capacity of the display panel, and also increase the production cost of the display panel.

[0033] In this regard, an embodiment of the present invention provides a display panel, such as Figures 1 to 3 As shown, Figure 1 A top view of a display panel provided by an embodiment of the present invention, Figure 2 A schematic diagram of a partial structure of a display panel provided by an embodiment of the present invention is shown in FIG. Figure 3 for Figure 2 A cross-sectional view taken along the A1-A2 direction shows the display panel comprising an optical component placement area 1, a transition area 2, and a first display area 3. The optical component placement area 1 is used to accommodate optical components such as a camera and can be any shape, such as square, circular, or elliptical. The transition area 2 can be a frame area surrounding the optical component placement area 1, while the first display area 3 can be a conventional display area.

[0034] The display panel also includes a first light-emitting element 4, a first pixel circuit 5, a first connecting line 6, and a second connecting line 7. The first light-emitting element 4 is located in the optical component placement area 1, and the first pixel circuit 5 is located in the transition area 2. The first end of the first connecting line 6 is electrically connected to the first pixel circuit 5, and the second end of the first connecting line 6 is electrically connected to the first light-emitting element 4. The first connecting line 6 extends from at least the edge of the optical component placement area 1 to the interior of the optical component placement area 1. The second ends of at least some of the first connecting lines 6 are electrically connected to the first light-emitting element 4 via the second connecting line 7, and the second connecting line 7 overlaps with at least one first connecting line 6 in a direction perpendicular to the plane of the display panel.

[0035] The second connection line 7 and the first connection line 6 are provided in different layers, and the thickness of the second connection line 7 is less than or equal to the thickness of the first connection line 6. In the embodiment of the present invention, the thickness of the second connection line 7 can be less than that of the first connection line 6.

[0036] In one configuration, the second ends of some first connecting wires 6 are directly connected to the first light-emitting element 4, and the second ends of some first connecting wires 6 are connected to the first light-emitting element 4 via the second connecting wire 7. Alternatively, in another configuration, the second ends of all first connecting wires 6 are connected to the first light-emitting element 4 via the second connecting wire 7.

[0037] In one configuration, the first ends of at least some of the first connecting lines 6 are directly electrically connected to the first pixel circuit 5, and the first connecting lines 6 extend from the interior of the transition region 2 to the interior of the optical component placement region 1. Alternatively, in another configuration, at least some of the first connecting lines 6 are electrically connected to the first pixel circuit 5 via a section of a switching line, and the first connecting lines 6 extend only from the edge of the optical component placement region 1 (the boundary between the optical component placement region 1 and the transition region 2) to the interior of the optical component placement region 1.

[0038] Based on the arrangement of the first connection line 6 and the second connection line 7, the first connection line 6 is the main connection line leading from the first pixel circuit 5 to the first light-emitting element 4, while the second connection line 7 is merely a bridge connection line connecting the first connection line 6 and the first light-emitting element 4. The second connection line 7 is mainly used to avoid other first connection lines 6, thereby preventing short circuits between multiple first connection lines 6. It can be understood that for the above two types of connection lines, the first connection line 6 generally has a longer extension length, while the second connection line 7 generally has a shorter extension length.

[0039] In this regard, the embodiment of the present invention matches the film thickness and length of the first connecting line 6 and the second connecting line 7 based on the difference in extension length between the two. The embodiment of the present invention sets the generally longer first connecting line 6 to a larger film thickness, and sets the generally shorter second connecting line 7 to a smaller film thickness. On the one hand, the larger film thickness can be used to reduce the surface resistance of the first connecting line 6, and the smaller film thickness can be used to increase the surface resistance of the second connecting line 7. In this way, the load difference between the two can be weakened, so that the loads of the two tend to be consistent, thereby optimizing product performance. On the other hand, setting the second connecting line 7 to a smaller film thickness can also reduce the film forming time of the second connecting line 7. For example, when the second connecting line 7 is formed by a sputtering process, the thinner the second connecting line 7, the shorter the sputtering time, and accordingly, the shorter the film forming time. At this time, the entire process time of the display panel can be shortened, the number of display panels produced per unit time can be increased, and the production capacity can be improved, and the production cost of the display panel can also be reduced.

[0040] It should be noted that, see Figure 3The first pixel circuit 5 includes a first transistor 9, which includes an active layer p, a gate g, a first electrode s, and a second electrode d. The first light-emitting element 4 includes an anode 10, a light-emitting layer 11, and a cathode 12. Specifically, the first pixel circuit 5 is electrically connected to the first light-emitting element 4, which means that the second electrode d of the first transistor 9 in the first pixel circuit 5 is electrically connected to the anode 10 in the first light-emitting element 4.

[0041] In addition, it should be noted that the arrangement of the first connecting lines 6 and the second connecting lines 7 in the drawings of the embodiments of the present invention is only a schematic diagram and does not represent a specific limitation on the arrangement of the first connecting lines 6 and the second connecting lines 7.

[0042] In one possible implementation, see again Figure 2 , the length of the second connecting line 7 is less than the length of the first connecting line 6 connected thereto.

[0043] As mentioned above, the first connecting line 6 is the main connecting line, and the second connecting line 7 is the bridge connecting line. Based on the differentiated design of the membrane thickness of the two, when designing the extension method of the first connecting line 6 and the second connecting line 7, the length of each second connecting line 7 can be made smaller than the length of the first connecting line 6 connected to it. In this way, for the two connected first connecting lines 6 and second connecting lines 7, the loads of the two connecting lines can be made consistent.

[0044] In one possible implementation, see again Figure 2 , the length of any second connecting line 7 is less than the length of any first connecting line 6. That is, the longest second connecting line 7 is shorter than the shortest first connecting line 6.

[0045] This arrangement not only ensures that the length of each second connecting line 7 is shorter than the length of the first connecting line 6 to which it is connected, but also ensures that the length of each second connecting line 7 is shorter than the length of any first connecting line 6. In other words, each first connecting line 6 has a longer extension length, while each second connecting line 7 has a shorter extension length. In this case, the length and film thickness of each first connecting line 6 and each second connecting line 7 are matched. There will not be a situation where a second connecting line 7 has a smaller film thickness but a longer length, nor will there be a situation where a first connecting line 6 has a larger film thickness but a shorter length. Thus, while achieving increased production capacity, the load of each first connecting line 6 and second connecting line 7 is optimized.

[0046] In one possible implementation, Figure 4 As shown, Figure 4This is another partial structural diagram of a display panel provided by an embodiment of the present invention. The optical component setting area 1 includes a plurality of repeating units 16. At least two first light-emitting elements 4 with the same light output color in the repeating unit 16 are electrically connected to the same first pixel circuit 5.

[0047] For example, see again Figure 4 The first light-emitting element 4 includes a first red light-emitting element 13 for emitting red light, a first green light-emitting element 14 for emitting green light, and a first blue light-emitting element 15 for emitting blue light. The repeating unit 16 includes two first red light-emitting elements 13, two first blue light-emitting elements 15, and four second green light-emitting elements, wherein the two first red light-emitting elements 13 are electrically connected to the same first pixel circuit 5, the two first blue light-emitting elements 15 are electrically connected to the same first pixel circuit 5, and the four second green light-emitting elements are electrically connected to the same first pixel circuit 5.

[0048] This structure utilizes a one-drive-multiple design for the first pixel circuit 5. By electrically connecting one first pixel circuit 5 to at least two first light-emitting elements 4, the number of first pixel circuits 5 required in the transition region 2 can be reduced, thereby reducing the border width occupied by the first pixel circuits 5 and optimizing the narrow border design. Furthermore, by dividing the optical component placement area 1 into multiple repeating units 16, the first light-emitting elements 4 with the same light-emitting color within the repeating units 16 are relatively close to each other and generally have similar light-emitting brightness. Therefore, when the at least two first light-emitting elements 4 electrically connected to the first pixel circuit 5 belong to the same repeating unit 16, there will be no significant impact on the light-emitting brightness of the first light-emitting elements 4.

[0049] In one possible embodiment, combining Figure 4 and Figure 5 , Figure 5 for Figure 4 In a cross-sectional view along the B1-B2 direction, the display panel further includes a third connecting line 17. For at least two first light-emitting elements 4 electrically connected to the same first pixel circuit 5, one of the second light-emitting elements is electrically connected to the second connecting line 7 or the first connecting line 6, and at least some adjacent first light-emitting elements 4 are electrically connected via the third connecting line 17. The third connecting line 17 is disposed in a different layer from the first connecting line 6 and the second connecting line 7, and the thickness of the third connecting line 17 is less than or equal to the thickness of the first connecting line 6.

[0050] Because the first light-emitting elements 4 of the same light-emitting color within the repeating unit 16 are relatively close to each other, the third connecting wires 17 connecting these first light-emitting elements 4 are typically relatively short, resulting in a significant length difference between the third connecting wires 17 and the first connecting wires 6. Therefore, the thickness and length of the third connecting wires 17 and the first connecting wires 6 can also be designed to match each other. By reducing the thickness of the third connecting wires 17, the load on the third connecting wires 17 and the first connecting wires 6 is balanced while also reducing the film formation time for the third connecting wires 17. This, in turn, shortens the entire display panel manufacturing process time, increases the number of display panels produced per unit time, and improves production capacity.

[0051] Furthermore, the length of the second connecting line 7 is greater than the length of any third connecting line 17 connected thereto, and the thickness of the third connecting line 17 is less than or equal to the thickness of the second connecting line 7. Alternatively, the length of the second connecting line 7 is less than the length of any third connecting line 17 connected thereto, and the thickness of the second connecting line 7 is less than or equal to the thickness of the third connecting line 17.

[0052] For example, in an embodiment of the present invention, when the length of the second connecting line 7 is greater than the length of any third connecting line 17 connected thereto, the film thickness of the third connecting line 17 is less than the film thickness of the second connecting line 7. Alternatively, when the length of the second connecting line 7 is less than the length of any third connecting line 17 connected thereto, the film thickness of the second connecting line 7 is less than the film thickness of the third connecting line 17.

[0053] When designing the routing of the second and third connecting lines 7 and 17, the lengths and thicknesses of the second and third connecting lines 7 and 17 can also be matched. Specifically, by making the second connecting line 7 longer and thicker, and the third connecting line 17 shorter and thicker, or by making the third connecting line 17 longer and thicker, and the second connecting line 7 shorter and thicker, the loads on the second and third connecting lines 7 and 17 can be balanced. Furthermore, the thickness of the second or third connecting line 7 and 17 can be further reduced to further improve production capacity.

[0054] In one possible implementation, see again Figure 4 , at least part of the third connecting line 17 extends non-straightly, so that at least part of the third connecting line 17 extends irregularly, weakening the diffraction phenomenon caused by the ambient light entering through the optical component setting area 1, thereby reducing the starburst in the image obtained by using the under-screen camera.

[0055] In one possible implementation, Figure 6 and Figure 7 As shown, Figure 6This is another partial structural diagram of a display panel provided by an embodiment of the present invention. Figure 7 for Figure 6 In a cross-sectional view along the C1 - C2 direction, the line width of the third connecting line 17 is greater than the line width of the second connecting line 7 , and the film thickness of the third connecting line 17 is less than the film thickness of the second connecting line 7 .

[0056] The third connecting line 17 is connected between the two first light-emitting elements 4. Therefore, the arrangement of the third connecting line 17 will be slightly sparse. At this time, the line width of the third connecting line 17 can be increased to be larger than the line width of the second connecting line 7, so as to further reduce the film thickness of the third connecting line 17, thereby reducing its film forming time to a greater extent and improving production capacity.

[0057] Exemplarily, the line width of the first connecting line 6 is 2.7 μm, and the line distance between two adjacent first connecting lines 6 is 2.8 μm; the line width of the second connecting line 7 is 2.7 μm, and the line distance between two adjacent second connecting lines 7 is 2.8 μm; the line width of the third connecting line 17 is 3.2 μm, and the line distance between two adjacent third connecting lines 17 is 5 μm.

[0058] In one possible implementation, see again Figure 2 , the first pixel circuits 5 and the first light-emitting elements 4 are electrically connected in a one-to-one correspondence. For example, each first pixel circuit 5 can be electrically connected to one first light-emitting element 4 via a first connecting line 6 and a second connecting line 7. In this case, the first pixel circuit 5 drives one first light-emitting element 4, which more accurately controls the brightness of the first light-emitting element 4, thereby improving the display effect in the optical component installation area 1.

[0059] In one possible implementation, see again Figure 2 and Figure 4 The first connecting line 6 extends along the first direction x, and the second connecting line 7 extends along the second direction y. The first direction x intersects the second direction y. At this time, the first connecting line 6 and the second connecting line 7 are arranged regularly, and short circuits can be avoided between multiple first connecting lines 6 and multiple second connecting lines 7 on the same layer.

[0060] In one possible implementation, Figure 8 As shown, Figure 8 This is another partial structural diagram of a display panel provided by an embodiment of the present invention, in which the line widths of the first connecting line 6 and the second connecting line 7 are different.

[0061] In one setting, the line width of the second connecting line 7 can be greater than the line width of the first connecting line 6. In this case, the second connecting line 7 can be set to be thinner. The effect of the increased line width of the second connecting line 7 on the load can compensate for the effect of the thinned film thickness of the second connecting line 7 on the load, thereby further reducing the film forming time of the second connecting line 7 while optimizing the load, thereby further improving production capacity.

[0062] Alternatively, in another setting, the line width of the first connecting line 6 can be greater than the line width of the second connecting line 7. At this time, the first connecting line 6 can also be thinned to a certain extent. The effect of the increased line width of the first connecting line 6 on the load can compensate for the effect of the thinned film thickness of the first connecting line 6 on the load, thereby optimizing the load while reducing the film forming time of the first connecting line 6, thereby further improving production capacity.

[0063] In one possible embodiment, combining Figure 3 、 Figure 5 and Figure 7 , the film thickness of the first connecting line 6 is d1, The thickness of the second connecting line 7 is d2. The thickness of the third connecting line 17 is d3.

[0064] The first connecting line 6 is a main connecting line connected between the first pixel circuit 5 and the first light emitting element 4, and has a relatively large extension length. In the embodiment of the present invention, the thickness of the first connecting line 6 is set to The first connecting wire 6 can be made thicker, thereby avoiding excessive load and reducing the voltage drop generated when the driving voltage is transmitted on the first connecting wire 6. The second connecting wire 7 and the third connecting wire 17 are shorter, so they can be made thinner to shorten the film formation time. The thickness of the second connecting wire 7 and the third connecting wire 17 can be the same or different.

[0065] In a feasible embodiment, the first connecting line 6, the second connecting line 7 and the third connecting line 17 respectively include a light-transmitting conductive material. For example, the first connecting line 6, the second connecting line 7 and the third connecting line 17 respectively include indium tin oxide (ITO) material to reduce the blocking of the optical component setting area 1 by the connecting line, improve the transmittance of the optical component setting area 1, and allow more external ambient light to pass through the optical component setting area 1 and enter the camera, thereby improving the imaging quality.

[0066] Alternatively, in another feasible embodiment, at least one of the first connecting line 6 , the second connecting line 7 and the third connecting line 17 may also include a metal material to reduce the load thereof.

[0067] Of course, it is understandable that the display panel also includes a second light-emitting element and a second pixel circuit, which are located in the first display area 3 and are used to achieve normal display in the first display area 3. Among them, the arrangement density of the first light-emitting elements 4 in the optical component setting area 1 and the arrangement density of the second light-emitting elements in the first display area 3 can be equal to weaken the display difference between the optical component setting area 1 and the first display area 3, thereby improving the full-screen display effect. Alternatively, the arrangement density of the first light-emitting elements 4 in the optical component setting area 1 can also be less than the arrangement density of the second light-emitting elements in the first display area 3, thereby improving the transmittance of the optical component setting area 1 and optimizing the imaging quality.

[0068] Based on the same inventive concept, an embodiment of the present invention further provides a display device, such as Figure 9 As shown, Figure 9 This is a schematic diagram of the structure of a display device provided by an embodiment of the present invention. The display device includes the above-mentioned display panel 100. The specific structure of the display panel 100 has been described in detail in the above-mentioned embodiment and will not be repeated here. Figure 9 The display device shown is for illustrative purposes only. The display device may be any electronic device with a display function, such as a mobile phone, a tablet computer, a laptop computer, an e-reader, or a television.

[0069] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A display panel, characterized in that: include: An optical component setting area, a transition area and a first display area, wherein the transition area surrounds the optical component setting area, and the first display area surrounds the transition area; A first light-emitting element is located in the optical component setting area; A first pixel circuit is located in the transition area; a first connecting line, wherein a first end of the first connecting line is electrically connected to the first pixel circuit, a second end of the first connecting line is electrically connected to the first light-emitting element, and the first connecting line extends at least from an edge of the optical component placement area to an interior of the optical component placement area; a second connecting line, wherein at least a portion of the second ends of the first connecting line are electrically connected to the first light-emitting element through the second connecting line; The first connecting line extends along a first direction, the second connecting line extends along a second direction, and the first direction intersects the second direction; the length of the second connecting line is shorter than the length of the first connecting line connected to it, and the second connecting line overlaps with at least one of the first connecting lines that is not connected to it; The second connecting line and the first connecting line are provided in different layers, and the thickness of the second connecting line is smaller than that of the first connecting line.

2. The display panel according to claim 1, wherein: The length of any one of the second connecting lines is shorter than the length of any one of the first connecting lines.

3. The display panel according to claim 1, wherein: The optical component setting area includes a plurality of repeating units, and at least two first light-emitting elements with the same light output color in the repeating units are electrically connected to the same first pixel circuit.

4. The display panel according to claim 3, wherein: The display panel further includes a third connecting line; For at least two first light-emitting elements electrically connected to the same first pixel circuit, one of the first light-emitting elements is electrically connected to the second connecting line or the first connecting line, and at least two adjacent first light-emitting elements are electrically connected via the third connecting line; The third connecting line is provided in a different layer from the first connecting line and the second connecting line, and a thickness of the third connecting line is less than or equal to a thickness of the first connecting line.

5. The display panel according to claim 4, wherein: The length of the second connecting line is greater than that of the third connecting line, and the film thickness of the third connecting line is less than or equal to the film thickness of the second connecting line; Alternatively, the length of the second connecting line is smaller than that of the third connecting line, and the thickness of the second connecting line is smaller than or equal to the thickness of the third connecting line.

6. The display panel according to claim 4, wherein: At least a portion of the third connecting line extends in a non-linear manner.

7. The display panel according to claim 4, wherein: The line width of the third connecting line is greater than the line width of the second connecting line, and the film thickness of the third connecting line is less than the film thickness of the second connecting line.

8. The display panel according to claim 1, wherein: The first pixel circuits and the first light-emitting elements are electrically connected in a one-to-one correspondence.

9. The display panel according to claim 1, wherein: The first connecting line and the second connecting line have different line widths.

10. The display panel according to claim 1, wherein The film thickness of the first connecting line is d1, 400Å≤d1≤1000Å, and the film thickness of the second connecting line is d2, 100Å≤d2≤500Å.

11. The display panel according to claim 1, wherein The first connecting line and the second connecting line respectively include a light-transmitting conductive material.

12. A display device, characterized in that: Comprising the display panel according to any one of claims 1 to 11.

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