Display panel and display apparatus

By designing a first and second section with heterogeneous electrical connections in the display panel and increasing the area of ​​the second section, the problem of poor brightness uniformity caused by the increased impedance of the power supply traces on the lower bezel was solved, thus improving the brightness uniformity of the display area.

WO2026044842A1PCT designated stage Publication Date: 2026-03-05WUHAN TIANMA MICRO ELECTRONICS CO LTD
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Patent Information

Application Number
PCT/CN2024/119586
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-08-29
Filing Date
2024-09-19
Publication Date
2026-03-05

AI Technical Summary

Technical Problem

In existing technologies, the increased impedance of the power supply traces on the bottom bezel leads to poor brightness uniformity.

Method used

Design a display panel by setting a first part and a second part that are different layers and electrically connected. The second part is longer than the first part in the second direction and overlaps with the first part in the first direction, thereby increasing the area of ​​the second part and reducing the impedance of the power supply structure.

Benefits of technology

It effectively reduces the impedance of the power supply structure and improves the brightness uniformity of the display area.

✦ Generated by Eureka AI based on patent content.

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Abstract

Provided in embodiments of the present invention are a display panel and a display apparatus. The display panel comprises a display area and a first non-display area located on one side of the display area in a first direction, wherein the first non-display area comprises a substrate and a first power supply structure; the first power supply structure comprises a first portion and a second portion, the first portion and the second portion are in different layers and are electrically connected to each other, and the second portion comprises a first sub-portion and a second sub-portion that are electrically connected to each other; in a direction perpendicular to a plane where the substrate is located, the first sub-portion overlaps the first portion; and in the first direction, the second sub-portion is located on the side of the first sub-portion away from the display area, the length of the second sub-portion in a second direction is greater than that of the first sub-portion in the second direction, and the second direction intersects the first direction. The present invention can reduce the impedance of the first power supply structure, thereby improving the brightness uniformity of the display area.
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Description

Display panel and display device

[0001] This invention claims priority to Chinese Patent Application No. 202411207394.8, filed with the State Intellectual Property Office of China on August 29, 2024, entitled “Display Panel and Display Device”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This invention relates to the field of display technology, and more particularly to a display panel and a display device. Background Technology

[0003] OLED (Organic Light-Emitting Diode) displays are thinner, lighter, brighter, consume less power, have a faster response time, higher resolution, better flexibility, and higher luminous efficiency than traditional LCD displays, meeting consumers' new demands for display technology. However, current technologies that narrow the bottom bezel increase the impedance of the power supply traces on the bottom bezel, affecting brightness uniformity.

[0004] Summary of the Invention

[0005] This invention provides a display panel and a display device to solve the technical problems of reducing the power trace impedance of the lower bezel and improving brightness uniformity.

[0006] In a first aspect, embodiments of the present invention provide a display panel, the display panel including a display area and a first non-display area located on one side of the display area along a first direction, the first non-display area including a substrate and a first power supply structure;

[0007] The first power supply structure includes a first part and a second part, which are in different layers and electrically connected. The second part includes a first sub-part and a second sub-part that are electrically connected to each other. The first sub-part overlaps with the first part along a direction perpendicular to the plane of the substrate. Along a first direction, the second sub-part is located on the side of the first sub-part away from the display area. The length of the second sub-part in the second direction is greater than the length of the first sub-part in the second direction. The second direction intersects the first direction.

[0008] Secondly, based on the same inventive concept, embodiments of the present invention also provide a display device, including the display panel provided in any embodiment of the present invention.

[0009] The display panel and display device provided in this embodiment of the invention have the following beneficial effects: In this embodiment, the first power supply structure includes a first portion and a second portion that are disposed in different layers and electrically connected. A first sub-part overlaps with the first portion in the second portion. A second sub-part is located on the side of the first sub-part away from the display area, and the length of the second sub-part in the second direction is greater than the length of the first sub-part in the second direction. By designing the shape of the second portion, and setting the length of the second sub-part in the second direction to be larger, the area of ​​the second portion in the first power supply structure is increased, which can reduce the impedance of the first power supply structure and improve the brightness uniformity of the display area. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 is a partial schematic diagram of a display panel in the related art;

[0012] Figure 2 is a partial schematic diagram of a display panel provided in an embodiment of the present invention;

[0013] Figure 3 is a magnified view of a portion of region Q1 in Figure 2;

[0014] Figure 4 is a schematic diagram of one structure of the two membrane layers where the first power supply structure is located at region Q1.

[0015] Figure 5 is a schematic diagram of another structure of the two membrane layers where the first power supply structure is located in an embodiment of the present invention.

[0016] Figure 6 is a schematic diagram of a cross section at the position of tangent AA′ in Figure 3;

[0017] Figure 7 is a schematic diagram of a cross section at the position of tangent BB′ in Figure 3;

[0018] Figure 8 is a partial schematic diagram of another display panel provided in an embodiment of the present invention;

[0019] Figure 9 is a schematic diagram of another display panel provided in an embodiment of the present invention;

[0020] Figure 10 is a partial schematic diagram of another display panel provided in an embodiment of the present invention;

[0021] Figure 11 is a schematic diagram of a cross section at the position of the tangent CC′ in Figure 10;

[0022] Figure 12 is a schematic diagram of a cross section at the position of the tangent DD′ in Figure 10;

[0023] Figure 13 is a schematic diagram of the third part in Figure 10;

[0024] Figure 14 is a partial schematic diagram of another display panel provided in an embodiment of the present invention;

[0025] Figure 15 is a schematic diagram of a display device provided in an embodiment of the present invention. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Various modifications and variations can be made to this invention without departing from its spirit or scope, as will be apparent to those skilled in the art. Therefore, this invention is intended to cover modifications and variations falling within the scope of the corresponding claims (the claimed technical solutions) and their equivalents. It should be noted that the embodiments provided in this invention can be combined with each other without contradiction.

[0028] The terminology used in the embodiments of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms “a,” “the,” and “the” as used in the embodiments of this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0029] Figure 1 is a partial schematic diagram of a display panel in the related art. As shown in Figure 1, the display panel includes a display area AA and a first non-display area NA1, which is the lower bezel area of ​​the display panel. A data connection line 01 is provided in the display area AA. The data connection line 01 is introduced into the display area AA from the junction of the first non-display area NA1 and the display area AA and connects to the data lines in the display area AA. Providing the data connection line 01 in the display area AA can reduce the area occupied by the fan-out arrangement of data leads in the first non-display area NA1, which is beneficial to narrowing the lower bezel. A cross-shaped and interconnected power signal line 02 is also provided in the display area AA. The power signal line 02 is made using the metal layer used to make the data connection line 01 and forms a mesh-like trace in the display area AA. This can reduce the voltage drop of the power signal and improve the uniformity of reflectivity in the display area AA. A positive power supply structure 03 and a negative power supply structure 04 are provided in the first non-display area NA1. For example, the positive power supply structure 03 is used to provide the positive power supply voltage required for display, and the negative power supply structure 04 is used to provide the negative power supply voltage required for display. For example, the power signal line 02 extending along the first direction y in the middle area of ​​display area AA is connected to the negative power supply structure 04, and the positive power supply structure 03 corresponds to the area of ​​the first line segment 011. The first line segment 011 is a part of the line segment on the data connection line 01. The first line segment 011 extends along the first direction y and is introduced into display area AA from the boundary between the first non-display area NA1 and display area AA.

[0030] In other words, within the display area AA, adjacent to the first non-display area NA1, the area containing the mesh power signal lines 02 corresponds to the negative power structure 04, and the area where the first line segment 011 is arranged corresponds to the positive power structure 03. In the scheme of setting the mesh power signal lines 02 and the corresponding negative power structure 04, the width of the positive power structure 03 in the second direction x within the first non-display area NA1 is affected by the number of data connection lines 01. The more data connection lines 01 there are, the wider the positive power structure 03 is in the second direction x. However, the longer the length of the second line segment 012 extending along the second direction x in the data connection line 01, the greater the coupling capacitance will be. To prevent the coupling capacitance from being too large, the length of the second line segment 012 is also limited, which in turn limits the number of data connection lines 01. In addition, it is common practice to connect the data lines in the display area AA corresponding to the R-corner of the display panel (i.e., the arc-shaped corner of the display area) to the data terminal via the data connection lines 01. Therefore, data leads do not need to be set near the R-corner, thereby narrowing the bezel. The radius of the radius (R) also affects the number of data connection lines 01. The number of data connection lines 01, in turn, affects the width of the positive power supply structure 03 in the second x-direction. A smaller width of the positive power supply structure 03 in the second x-direction leads to increased impedance, which is detrimental to the uniformity of brightness in the display area.

[0031] To address the problems existing in related technologies, and considering the need to reduce the bottom bezel by setting up data connection lines and lower the impedance of the first power supply structure (such as the positive power supply structure), this invention provides a display panel that designs the shapes of the first and second power supply structures within a first non-display area to increase the area of ​​the first power supply structure, reduce its impedance, and improve the brightness uniformity of the display area.

[0032] Figure 2 is a partial schematic diagram of a display panel provided in an embodiment of the present invention, and Figure 3 is a partial enlarged view of the area Q1 in Figure 2. As shown in Figure 2, the display panel includes a display area AA and a first non-display area NA1 located on one side of the display area AA along the first direction y. The first non-display area NA1 includes a first power supply structure 10 and a second power supply structure 20. Multiple light-emitting devices (not shown in Figure 2) are disposed within the display area AA. The light-emitting devices can be organic light-emitting devices or inorganic light-emitting devices. The first power supply structure 10 is used to provide a positive power supply voltage to the light-emitting devices within the display area AA, and the second power supply structure 20 is used to provide a negative power supply voltage. Taking an organic light-emitting device as an example, the light-emitting device includes a stacked anode, a light-emitting layer, and a cathode. The anodes of each light-emitting device are isolated from each other, and the cathodes of each light-emitting device are interconnected to form a common electrode. The anode of the light-emitting device receives the positive power supply voltage through a pixel circuit, and the cathode of the light-emitting device receives the negative power supply voltage.

[0033] Figure 4 is a schematic diagram of the structure of the two film layers containing the first power supply structure at location Q1. Referring to Figures 2 to 4, the first power supply structure 10 includes a first portion 11 and a second portion 12. The first portion 11 and the second portion 12 are disposed in different layers and electrically connected. The second portion 12 includes a first sub-portion 121 and a second sub-portion 122 that are interconnected. The first portion 11 is located on a third metal layer M3 above the substrate, and the second portion 12 is located on a fourth metal layer M4 above the substrate. As shown in the top view of Figure 3, the first sub-portion 121 and the first portion 11 overlap along a direction perpendicular to the plane of the substrate. Referring to Figure 2, the second sub-portion 122 is located on the side of the first sub-portion 121 furthest from the display area AA. The length of the second sub-portion 122 in the second direction x is greater than the length of the first sub-portion 121 in the second direction x, and the second direction x intersects the first direction y. In other words, the second portion 12 protrudes outward relative to the first portion 11 along the second direction x.

[0034] In this embodiment of the invention, the first power supply structure 10 includes a first portion 11 and a second portion 12 that are disposed in different layers and electrically connected. In the second portion 12, a first sub-portion 121 overlaps with the first portion 11. In the second portion 12, a second sub-portion 122 is located on the side of the first sub-portion 121 furthest from the display area AA, and the length of the second sub-portion 122 in the second direction x is greater than the length of the first sub-portion 121 in the second direction x. By designing the shape of the second portion 12, the length of the second sub-portion 122 in the second direction x is made larger, increasing the area of ​​the second portion 12 in the first power supply structure 10. This reduces the impedance of the first power supply structure 10 and improves the brightness uniformity of the display area.

[0035] As shown in Figure 2, the display area AA includes a data connection line 31, a second power signal line 32, and a second auxiliary power line 33. The second power signal line 32 extends along a first direction y, and the second auxiliary power line 33 extends along a second direction x. The second power signal line 32 and the second auxiliary power line 33 intersect and are electrically connected. One end of the data connection line 31 is electrically connected to a data line (not shown) within the display area AA, and the other end is connected to a data terminal in a non-display area. The data terminal is connected to the display driver chip, and the data terminal provides data signals to the data line through the data connection line 31. The data connection line 31 includes at least one first segment 311 extending along the first direction y and at least one second segment 312 extending along the second direction x. The first segment 311 and the second power signal line 32 are located on the same layer, and the second segment 312 and the second auxiliary power line 33 are located on the same layer.

[0036] The display area AA includes a first area Z1 and a second area Z2, which are adjacent to the first non-display area NA1. In the first area Z1, multiple first line segments 311 are continuously arranged along the second direction x, and in the second area Z2, multiple second power signal lines 32 are continuously arranged along the second direction x. The first line segments 311 in the first area Z1 are introduced into the display area AA from the boundary between the first non-display area NA1 and the display area AA. Specifically, along the first direction y, the first power supply structure 10 at least partially overlaps with the first area Z1, and the second power supply structure 20 at least partially overlaps with the second area Z2.

[0037] Figure 2 illustrates the correspondence between the arrangement area of ​​the first power supply structure 10 and the first segment 311 in the data connection line 31, and the arrangement area of ​​the second power supply structure 20 and the second power signal line 32. As shown in the enlarged view in Figure 3, the second power supply structure 20 at the middle position is connected to the second power signal line 32 in the display area AA via the first connection line 41.

[0038] The display panel provided in this embodiment of the invention includes a data connection line 31 within the display area AA. This data connection line 31 connects the data lines within the display area AA, reducing the area occupied by the fan-shaped data leads (used to connect data lines and data terminals) within the first non-display area NA1, thus narrowing the bottom bezel. The second power signal line 32 and the second auxiliary power line 33 are fabricated using the film layer of the data connection line 31. These intersect and are electrically connected to form a mesh-like trace, which not only reduces the voltage drop of the transmitted power signal but also improves the uniformity of the in-plane metal line layout, ensuring relatively uniform reflectivity within the display area AA and enhancing the display effect. A second power structure 20, connected to the second power signal line 32, is provided within the first non-display area NA1 to provide signals to the second power signal line 32.

[0039] As shown in Figures 2 to 4, the second power supply structure 20 includes a third portion 21, which is on the same layer as the first portion 11. The first portion 11 and the third portion 21 are arranged along the second direction x. Along the first direction y, the third portion 21 is located on the side of the second sub-part 122 closer to the display area AA. The third portion 21 and the second sub-part 122 at least partially overlap in the first direction y. The width of the second sub-part 122 in the second portion 12 of the first power supply structure 10 in the second direction x is greater than the width of the first sub-part 121 in the second direction x, and the third portion 21 of the second power supply structure 20 is located on the side of the second sub-part 122 closer to the display area AA. This is equivalent to increasing the area of ​​the second sub-part 122 so that it overlaps with the third portion 21 of the second power supply structure 20 in the first direction y. By changing the shape of the second portion 12 in the first power supply structure 10 to increase its area, the correspondence between the third portion 21 in the second power supply structure 20 and the display area AA can be maintained without altering the correspondence between the second power supply structure 20 and the arrangement area of ​​the second power signal line 32. The second sub-portion 122 in the second portion 12 overlaps with the third portion 21 in the first direction y, which increases the area of ​​the second portion 12 in the first power supply structure 10, thereby reducing the impedance of the first power supply structure 10 and improving the brightness uniformity of the display area.

[0040] As shown in Figures 3 and 4, the second power supply structure 20 includes a fourth portion 22. The fourth portion 22 and the third portion 21 are disposed on different layers but electrically connected. The length of the fourth portion 22 in the second direction x is less than the length of the third portion 21 in the second direction x. The fourth portion 22 and the second portion 12 are on the same layer and are arranged along the second direction x. As can be seen from the top view, the fourth portion 22 and the third portion 21 overlap to form an L-shaped structure, and the first portion 11 and the second portion 12 overlap to form an L-shaped structure. The second portion 12 and the third portion 21 overlap in the first direction y, so that the first power supply structure 10 and the second power supply structure 20 are staggered and interlocked, which increases the area of ​​the second portion 12 in the first power supply structure 10 without reducing the length occupied by the second power supply structure 20 in the second direction x. This reduces the impedance of the first power supply structure 10 and improves the brightness uniformity of the display area.

[0041] In some embodiments, Figure 5 is a schematic diagram of another structure of the two film layers containing the first power supply structure in an embodiment of the present invention. The third portion 21 includes a third sub-portion 211 and a fourth sub-portion 212 connected to each other. Along the first direction y, the fourth sub-portion 212 is located on the side of the third sub-portion 211 away from the display area AA. The length of the fourth sub-portion 212 in the second direction x is less than the length of the third sub-portion 211 in the second direction x. Along the direction perpendicular to the plane of the substrate, the fourth sub-portion 212 overlaps with and is electrically connected to the fourth portion 22. This arrangement can increase the area of ​​the third portion 21, which is beneficial to reducing the impedance of the second power supply structure 20.

[0042] In one embodiment, as shown in FIG2, the display panel includes two first power structures 10, which are located on opposite sides of a second power structure 20 along the second direction x. The two first power structures 10 refer to two first power structures 10 located in different positions and not directly connected. In fact, the two first power structures 10 are electrically connected to the first power trace 50, thus the two first power structures 10 are electrically connected. The display area AA includes a center line X extending along the first direction y, the extension of which overlaps with the second power structure 20; the shape of the display area AA is symmetrical about the center line X. The third portion 21 includes a first end and a second end along the second direction x; the first end and the second end are not labeled in FIG2. The first end and the second end can be understood as the two ends of the third portion 21 along the second direction x. Along the first direction y, the first end is located on the side of the second sub-section 122 of one first power structure 10 near the display area AA, and the second end is located on the side of the second sub-section 122 of the other first power structure 10 near the display area AA. This means reducing the length of the fourth portion 22 in the second power supply structure 20 in the second direction x, so that the third portion 21 and the fourth portion 22 form a T-shaped structure. Then, the two second sub-parts 122 in the first power supply structure 10 on both sides of the second power supply structure 20 can overlap with the end of the third portion 21 in the first direction y. This significantly reduces the impedance of the first power supply structure 10 and improves the uniformity of brightness in the display area.

[0043] In addition, as shown in Figure 2, two edge second power supply structures 23 are also provided in the first non-display area NA1. The edge second power supply structures 23 are located at the ends of the first non-display area NA1 in the second direction x. The edge second power supply structures 23 transmit the same signal as the second power supply structure 20 at the center position.

[0044] In some embodiments, as shown in FIG2, the length of the fourth portion 22 along the second direction x is less than the length of the second sub-portion 122. Since the fourth portion 22 in the second power supply structure 20 and the second sub-portion 122 in the first power supply structure 10 are located in the same film layer, within the limited space of the first non-display area NA1, reducing the length of the fourth portion 22 along the second direction x can increase the length of the second sub-portion 122, thereby increasing the area of ​​the second portion 12 in the first power supply structure 10 and reducing the impedance of the first power supply structure 10.

[0045] Referring to Figures 2 and 3, the display area AA includes a second power signal line 32 extending along the first direction y, and the first non-display area NA1 includes multiple first connecting lines 41 extending along the first direction y. One end of each first connecting line 41 is connected to the second power structure 20, and the other end is connected to the second power signal line 32. The first connecting lines 41 and the fourth portion 22 are located on the same layer. As shown in Figure 3, one end of some first connecting lines 41 is connected to the third portion 21, and one end of some first connecting lines 41 is connected to the fourth portion 22. The solid black circle in Figure 3 indicates the via connection position between the first connecting line 41 and the third portion 21. In this embodiment of the invention, the length of the fourth portion 22 in the second power structure 20 in the second direction x is less than the length of the third portion 21 in the second direction x. By reducing the length of the fourth portion 22 in the second direction x, the area of ​​the second portion 12 in the first power structure 10 can be increased in the same film layer as the fourth portion 22, thereby reducing the impedance of the first power structure 10. At the same time, the length of the third part 21 in the second power supply structure 20 in the second direction x is still long enough to connect the second power supply structure 20 and the second power signal line 32 located in the display area AA using the first connecting line 41 extending along the first direction y, thus ensuring the electrical reliability of the second power supply structure 20.

[0046] Figure 6 is a cross-sectional schematic diagram at the position of tangent AA′ in Figure 3. The same filling pattern in Figure 6 indicates the same film layer. Figure 6 shows the substrate 00. As can be seen from Figure 6, the first power supply trace 50 and the third portion 21 of the second power supply structure 20 are located in the same film layer, as are the first connecting line 41 and the second portion 12 of the first power supply structure 10. Figure 6 shows that the first connecting line 41 and the third portion 21 are connected through a via penetrating the insulating layer.

[0047] In some embodiments, as shown in FIG2, the first non-display area NA1 includes a first power trace 50; the first power trace 50 is located on the side of the first power structure 10 and the second power structure 20 closer to the display area AA, and the first power structure 10 is electrically connected to the first power trace 50. Specifically, the first power trace 50 is routed around the lower edge of the display area AA. Specifically, the first power trace 50 and the first portion 11 in the first power structure 10 are located on the same layer and are in contact with each other.

[0048] The display panel includes multiple second connecting lines 42. Referring to Figure 3, the second connecting lines 42 extend along the first direction y. As can be seen from the top view of Figure 3, at least one second connecting line 42 at least partially overlaps with the third portion 21 along a direction perpendicular to the plane of the substrate. One end of the second connecting line 42 is connected to the second portion 12, and the other end is connected to the first power supply trace 50. Specifically, one end of the second connecting line 42 is connected to the second sub-portion 122 in the second portion 12.

[0049] Figure 7 is a cross-sectional view of the tangent BB′ position in Figure 3. The same filling pattern in Figure 7 indicates the same film layer. Figure 7 shows the substrate 00. As can be seen from Figure 7, the second connecting line 42 is connected to the first power trace 50 through a via penetrating the insulating layer. The second connecting line 42 and the second portion 12 in the first power structure 10 are located in the same film layer. The third portion 21 in the second power structure 20 and the first power trace 50 are located in the same layer. That is, the first power trace 50, the first portion 11 in the first power structure 10, and the third portion 21 in the second power structure 20 are located in the same layer; the second portion 12 in the first power structure 10 and the fourth portion 22 in the second power structure 20 are located in the same layer. The first power structure 10 and the second power structure 20 each include portions located in two metal layers, making the impedance of both power structures relatively low, which is beneficial for reducing the voltage drop of the power signal and improving display uniformity.

[0050] In this embodiment of the invention, a second connecting line 42 extending along the first direction y is provided, connecting the first power supply trace 50 and the second sub-section 122 of the second section 12. By using the second connecting line 42 to connect the first power supply trace 50 and the first power supply structure 10, a grid structure is formed within the first non-display area NA1. This further reduces the voltage drop of the power supply transmitted by the first power supply structure 10, which is beneficial for improving display uniformity. Furthermore, the overlap area between the second connecting line 42 and the third section 21 is small, resulting in no large overlap between the structure transmitting the positive power supply voltage and the structure transmitting the negative power supply voltage, thus improving the reliability of the display panel.

[0051] As shown in Figure 4, the first connecting line 41, the second connecting line 42, the second part 12 in the first power supply structure 10, and the fourth part 22 in the second power supply structure 20 are located in the same film layer.

[0052] In some embodiments, as shown in Figures 6 and 7, the first non-display area NA1 includes a first barrier 61 and a second barrier 62; the second sub-part 122 and the first barrier 61 at least partially overlap in the direction e perpendicular to the plane of the substrate. Referring to Figure 3, the first barrier 61 is located on the side of the second barrier 62 away from the display area. The first barrier 61 and the second barrier 62 serve as the encapsulation boundary of the encapsulation layer. The encapsulation layer is used to encapsulate and protect the light-emitting device, wherein the encapsulation layer includes at least one inorganic encapsulation layer and at least one organic encapsulation layer. By setting the second sub-part 122 and the first barrier 61 to at least partially overlap, that is, extending the second sub-part 122 in the first direction y to the area where the first barrier 61 is located, the second sub-part 122 can have a larger width in the first direction y, which is beneficial for reducing the impedance of the first power supply structure 10 and improving display uniformity.

[0053] In some embodiments, referring to Figures 3 and 6, along the direction e perpendicular to the plane of the substrate, the first barrier 61 overlaps with the edge of the second sub-part 122 on the side away from the display area AA in the first direction y. That is, the edge of the second sub-part 122 on the side away from the display area AA in the first direction y is covered by the first barrier 61. This prevents the edge of the second sub-part 122 from being exposed and corroded, thereby ensuring the reliability of the first power supply structure 10.

[0054] As shown in Figure 3, the minimum distance between the second sub-part 122 and the third sub-part 21 along the first direction y is d, where d ≥ 3 μm. In this embodiment of the invention, the second sub-part 122 and the third sub-part 21 are located on different layers, thereby reducing the spacing between them along the first direction y. Referring to Figure 6, when the distance between the second sub-part 122 and the third sub-part 21 is small, the edges of both the second sub-part 122 and the third sub-part 21 can be simultaneously covered by an organic layer, ensuring that the edge of the third sub-part 21 will not be etched during subsequent etching processes. Setting d ≥ 3 μm ensures a small coupling capacitance between the second sub-part 122 and the third sub-part 21, resulting in a small coupling capacitance between the first power supply structure 10 and the second power supply structure 20, thus improving the reliability of their respective power supply voltage transmission.

[0055] In some embodiments, referring to Figures 2 and 3, the first non-display area NA1 includes a first sub-area Z3. Along the first direction y, the first sub-area Z3 is located between the second sub-section 122 of the second section 12 (its position can be understood in conjunction with Figure 4) and the display area AA. Along the second direction x, the first sub-area Z3 is located between the first sub-section 121 (its position can be understood in conjunction with Figure 4) and the fourth section 22. Within the first sub-area Z3, n first connecting lines 41 form a connecting line group (not shown in Figure 3), and the second connecting lines 42 and the connecting line group are arranged alternately along the second direction x. Figure 3 uses n=1 as an example, meaning that within the first sub-area Z3, the first connecting lines 41 and the second connecting lines 42 are arranged alternately in the second direction x.

[0056] Referring to Figure 2, the first connecting line 41 connects the second power supply structure 20 and the second power signal line 32 located in the display area AA. Pixel circuits arranged along the first direction y in the display area AA form a pixel circuit column. Two adjacent second power signal lines 32 can overlap with two adjacent pixel circuit columns, or two adjacent second power signal lines 32 can be separated by a pixel circuit column. That is, one second power signal line 32 can be set at the location of one pixel circuit column, or one second power signal line 32 can be set at the location of two pixel circuit columns.

[0057] For example, in a scheme where a second power signal line 32 is set at the position of a pixel circuit column, when the first connecting line 41 is connected to the second power signal line 32 in the display area AA, there is a certain space between adjacent first connecting lines 41. As shown in Figure 3, the second connecting line 42 and the first connecting line 41 are located on the same layer, and the second connecting line 42 is placed between adjacent first connecting lines 41. This not only makes full use of the film layer where the first connecting line 41 is located, but also, in the first non-display area NA1, the second connecting line 42 connects the first power trace 50 and the first power structure 10 to form a grid structure, which can further reduce the voltage drop of the power supply transmitted by the first power structure 10.

[0058] In some embodiments, Figure 8 is a partial schematic diagram of another display panel provided by an embodiment of the present invention. Figure 8 simplifies the illustration of some pixel circuits 34 disposed within the display area AA. Multiple pixel circuits 34 are arranged in a pixel circuit row along the second direction x within the display area AA, and multiple pixel circuits 34 are arranged in a pixel circuit column along the first direction y. Figure 8 illustrates one pixel circuit row. As shown in Figure 8, along the first direction y, the first sub-region Z3 is located between the second sub-part 122 of the second part 12 and the display area AA. Within the first sub-region Z3, two first connecting lines 41 form a connecting line group (i.e., n=2 in the connecting line group), and the second connecting lines 42 are arranged alternately with the connecting line group in the second direction x. That is, two adjacent second connecting lines 42 are separated by two first connecting lines 41. The first segment 311, the first power signal line 35, and the second power signal line 32 in the data connecting line 31 are illustrated within the display area AA. The first power signal line 35 is connected to the first power trace 50, and the second power signal line 32 is connected to the second power structure 20 through the first connecting line 41.

[0059] In the embodiment shown in Figure 8, a first power signal line 35 is arranged corresponding to the position where two pixel circuit columns are set. Two second power signal lines 32 are arranged between adjacent first power signal lines 35 in the display area AA overlapping with the third portion 21 along the first direction y. Two first line segments 311 are arranged between adjacent first power signal lines 35 in the display area AA overlapping with the first portion 11 along the first direction y. Arranging the second power signal lines 32 according to the arrangement of the first line segments 311 in the data connection line 31 can improve the uniformity of the metal wiring in the display area AA, resulting in uniform reflectivity within the display area.

[0060] In some embodiments, FIG9 is a schematic diagram of another display panel provided by an embodiment of the present invention. As shown in FIG9, the display panel includes a data line 36, which includes a first data line 361 and a second data line 362. A data lead 70 is disposed in a first non-display area NA1. The data lead 70 includes a first lead segment 70a and a second lead segment 70b. Along a first direction y, the first lead segment 70a is located on the side of the second lead segment 70b away from the display area AA. The first lead segment 70a extends along the first direction y, and the extension direction of the second lead segment 70b intersects the first direction y and the second direction x. Multiple first lead segments 70a are arranged along the second direction x, and multiple second lead segments 70b are arranged in a radial pattern, so that multiple data leads 70 are arranged in a fan shape in the first non-display area NA1. The data leads 70 are also called fan-out lines. As shown in Figure 9, the data lead 70 includes a first data lead 71 and a second data lead 72, with the first data line 361 electrically connected to the first data lead 71. The second data line 362 is electrically connected to the second data lead 72 via a data connection line 31 located within the display area AA.

[0061] In some embodiments, FIG10 is a partial schematic diagram of another display panel provided by an embodiment of the present invention. FIG10 illustrates a first data line 361 in the display area AA and a first data lead 71 in the first non-display area NA1. As shown in FIG10, the first data line 361 is electrically connected to the first data lead 71, and the first data line 71 extends from the first non-display area NA1 to the display area AA; the first data line 361 includes a first sub-segment 3611 located in the first non-display area NA1; the first sub-segment 3611 and the second connecting line 42 are located in the same film layer. Wherein, the first sub-segment 3611 is connected to the first data lead 71, so that the first data line 361 is electrically connected to the first data lead 71. Optionally, the segment of the first data line 361 located in the display area AA and the first sub-segment 3611 located in the first non-display area NA1 are located in the same layer.

[0062] Referring to the second region Z2 within the display area AA shown in Figure 10, along the first direction y, the second region Z2 at least partially overlaps with the second power structure 20. A second power signal line 32 is disposed within the second region Z2, and multiple second power signal lines 32 are continuously arranged along the second direction x within the second region Z2. The second power signal lines 32 are connected to the second power structure 20 via a first connecting line 41. A first power signal line 35 is also arranged within the second region Z2, and the first power signal line 35 is connected to the first power structure 10 via a second connecting line 42. As can be seen from the top view of Figure 10, along the direction perpendicular to the plane of the substrate, the first sub-segment 3611, the first connecting line 41, and the second connecting line 42 overlap with the first power trace 50. Within the first sub-region Z3, along the second direction x, the first sub-segment 3611 is adjacent to the second connecting line 42 and / or the first connecting line 41. Within the first sub-area Z3, the first sub-segment 3611, the first connecting line 41, and the second connecting line 42 are arranged on the same layer. By rationally routing the metal layer containing the first connecting line 41 and the second connecting line 42, not only can wiring space be saved, but the corresponding connection requirements of the first sub-segment 3611, the first connecting line 41, the second connecting line 42 and the signal lines in the display area AA can also be met.

[0063] Figure 11 is a cross-sectional view of the tangent CC′ position in Figure 10. As shown in Figure 11, along the direction e perpendicular to the plane containing the substrate 00, the first sub-segment 3611, the first connecting line 41, and the second connecting line 42 overlap with the first power supply trace 50. The display panel includes a first metal layer M1, a second metal layer M2, a third metal layer M3, and a fourth metal layer M4 located on the substrate 00. The second metal layer M2 is located on the side of the first metal layer M1 away from the substrate 00; the third metal layer M3 is located on the side of the second metal layer M2 away from the substrate 00; and the fourth metal layer M4 is located on the side of the third metal layer M3 away from the substrate 00. The first sub-segment 3611, the first connecting line 41, the second connecting line 42, and the second portion 12 of the first power supply structure 10 are located on the fourth metal layer M4; the first power supply trace 50 and the first portion 11 of the first power supply structure 10 are located on the third metal layer M3.

[0064] Figure 12 is a cross-sectional schematic diagram of the tangent DD′ position in Figure 10. Referring to Figures 10, 11, and 12, the first data line 361 is connected to the first data lead 71, and the first data line 361 extends from the first non-display area NA1 to the display area AA. At least a portion of the first data line 361 is located in the second area Z2. The first data line 361 includes a first sub-segment 3611 located in the first non-display area NA1; along the direction e perpendicular to the plane of the substrate 00, the first sub-segment 3611 overlaps with the third portion 21. The first data lead 71 includes a first sub-data lead 71a located in the first metal layer M1 and a second sub-data lead 71b located in the second metal layer M2; optionally, the first metal layer M1 and the second metal layer M2 comprise the same material. The first sub-data lead 71a and the second sub-data lead 71b are alternately electrically connected to the first sub-segment 3611. This configuration reduces the spacing between two adjacent first data leads 71, thereby reducing the area occupied by multiple fan-shaped data leads, which in turn helps to narrow the bottom bezel of the display panel.

[0065] In this embodiment of the invention, the third portion 21 of the second power structure 20 and the first power trace 50 are located on the same layer, that is, the third portion 21 and the first power trace 50 are located on the third metal layer M3. The data line 36 is located on the fourth metal layer M4. Optionally, the second power signal line 32 and the first segment 311 of the data connection line 31 are located on the fourth metal layer M4. Fabricating the data line 36, the first segment 311 of the data connection line 31, and the second power signal line 32, all extending in the same direction, on the same layer reduces the number of metal layers in the display panel, simplifies the manufacturing process, and lowers manufacturing costs.

[0066] In some embodiments, Figure 13 is a schematic diagram of the third portion in Figure 10. Referring to Figures 10 and 13, the third portion 21 includes a first side 21a, a second side 21b, and a third side 21c. Along the first direction y, the first side 21a is located on the side of the second side 21b closer to the display area AA, and the third side 21c connects to the second side 21b and is located along the first direction y between the first side 21a and the second sub-part 122. The first side 21a and the second side 21b extend along the second direction x, and the angle formed by the first side 21a and the third side 21c is an acute angle. This arrangement increases the spacing between the third portion 21 and the first portion 11, which are arranged in the same layer, ensuring the reliable electrical performance of both the first power supply structure 10 and the second power supply structure 20.

[0067] As shown in Figure 9, the data connection line 31 includes a first segment 311 extending along the first direction y and a second segment 312 extending along the second direction x. The data connection line 31 is electrically connected to the second data line 362. Figure 10 also illustrates the first area Z1 within the display area AA. The first area Z1 includes the first segment 311 of the data connection line 31, and multiple first segments 311 are arranged continuously within the first area Z1. As can be seen from Figure 10, along the first direction y, the first power supply structure 10 at least partially overlaps with the first area Z1, and the second power supply structure 20 at least partially overlaps with the second area Z2.

[0068] Data line 36 also includes a third data line 363, which is electrically connected to the second data lead 72. Referring to Figure 10, the extension of the third data line 363 overlaps with the first portion 11. At least a portion of the third data line 363 is located in the first region Z1. Along a direction perpendicular to the plane of the substrate, at least a portion of the second data lead 72 overlaps with the first power supply structure 10. Furthermore, one end of the data connection line 31 is connected to the second data line 362, and the other end is connected to the second data lead 72. That is, a portion of the second data lead 72 is electrically connected to the third data line 363, and a portion of the second data lead 72 is connected to the second data line 362 via the data connection line 31. The first data line 361 and the third data line 363 are directly connected to the data lead 70, the difference being their different positions within the display area AA.

[0069] Referring to Figures 10 and 11, the second data lead 72 includes a third sub-data lead 72a located in the first metal layer M1 and a fourth sub-data lead 72b located in the second metal layer M2; the third sub-data lead 72a and the fourth sub-data lead 72b respectively at least partially overlap with the first portion 11 in the first power supply structure 10. The third sub-data lead 72a and the fourth sub-data lead 72b are arranged alternately. This arrangement reduces the spacing between adjacent second data leads 72, thereby reducing the area occupied by multiple fan-out data leads, which in turn helps to narrow the bottom bezel of the display panel.

[0070] In some embodiments, as shown in FIG11, the first power supply structure 10 includes a first portion 11 and a second portion 12 disposed in different layers. At least a portion of the first portion 11 and at least a portion of the second portion 12 are electrically connected through multiple vias V, and / or, at least a portion of the first portion 11 and at least a portion of the second portion 12 are connected in planar contact. Referring to FIG10, in a region of the first power supply structure 10 near the display area AA along the first direction y, the first portion 11 and the second portion 12 overlap and are connected through vias V (indicated by solid black dots in FIG10). In a region of the first power supply structure 10 away from the display area AA along the first direction y, the first portion 11 and the second portion 12 are connected in planar contact. Planar contact connection increases the contact area of ​​the first portion 11 and the second portion 12, which helps to reduce the overall impedance of the first power supply structure 10. At the location where the first section 11 and the second section 12 are connected by the through hole V, the second section 12 is also provided with a cutout K. The cutout K can help the gas to be discharged during the process and prevent the film layer from peeling off.

[0071] In some embodiments, FIG14 is a partial schematic diagram of another display panel provided by an embodiment of the present invention. As shown in FIG14, the first non-display area NA1 further includes a bending area Q2 and a pad area Q3. The inorganic layer on the substrate inside the bending area Q2 is removed so that the bending area Q2 can be bent. A plurality of pads 83 are provided in the pad area Q3. Along the first direction y, the pad area Q3 is located on the side of the bending area Q2 away from the display area AA. The first non-display area NA1 includes two first power structures 10, a second power structure 20 located at the center, and two edge second power structures 23 located at the edges. The two first power structures 10 are electrically connected to the first power traces 50 respectively. Since the two first power structures 10 are spaced apart by the second power structures 20, they cannot make contact. The second power structure 20 and the two edge second power structures 23 transmit the same signal. The edge second power structure 23 is electrically connected to the second power signal line 32 in the display area AA that overlaps with it in the first direction y. The first non-display area NA1 includes a first crossover 81 and a second crossover 82. The first crossover 81 is connected to the first power structure 10 and extends to the pad area Q3 via the bending region Q2. The second power structure 20 and the edge second power structure 23 are respectively connected to the second crossover 82, and the second crossover 82 extends to the pad area Q3 via the bending region Q2. One first power structure 10 connects at least three first crossovers 81. One second power structure 20 / edge second power structure 23 connects to one second crossover 82. Optionally, the first crossover 81, the second crossover 82, and the second portion 12 in the first power structure 10 are located in the same film layer.

[0072] In this embodiment of the invention, the second portion 12 of the first power supply structure 10 includes a first sub-portion 121 and a second sub-portion 122. Along the first direction y, the second sub-portion 122 is located on the side of the first sub-portion 121 furthest from the display area AA, and the length of the second sub-portion 122 in the second direction x is greater than the length of the first sub-portion 121 in the second direction x. This increases the area of ​​the second portion 12, which helps to reduce the impedance of the first power supply structure 10. Simultaneously, the larger length of the second sub-portion 122 in the second direction x allows for the arrangement of three or more first cross-lines 81, further reducing impedance, lowering the voltage drop across the power supply transmitted by the first power supply structure 10, and improving display uniformity.

[0073] In some embodiments, the width of the first span 81 and the second span 82 in the second direction x is relatively large. Vent holes can be provided on the first span 81 and / or the second span 82 to discharge the gas generated in the process and prevent the film from peeling off over a large area of ​​the first span 81 and / or the second span 82.

[0074] Based on the same inventive concept, embodiments of the present invention also provide a display device. Figure 15 is a schematic diagram of a display device provided in an embodiment of the present invention. As shown in Figure 15, the display device includes a display panel 100 provided in any embodiment of the present invention. The structure of the display panel 100 has been described in the above embodiments and will not be repeated here. The display device provided in the embodiments of the present invention can be, for example, an electronic device with display function such as a mobile phone, tablet computer, laptop computer, or television.

[0075] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention. Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions 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, The display panel includes a display area and a first non-display area located on one side of the display area along a first direction, wherein the first non-display area includes a substrate and a first power supply structure; The first power supply structure includes a first portion and a second portion, which are on different layers but electrically connected. The second portion includes a first sub-part and a second sub-part that are electrically connected to each other. Along a plane perpendicular to the substrate, the first sub-part overlaps with the first portion. Along the first direction, the second sub-part is located on the side of the first sub-part away from the display area. The length of the second sub-part in the second direction is greater than the length of the first sub-part in the second direction. The second direction intersects the first direction.

2. The display panel according to claim 1, characterized in that, The first non-display area further includes a second power structure, the second power structure including a third portion, the third portion being on the same layer as the first portion, the first portion and the third portion being arranged along the second direction; along the first direction, the third portion is located on the side of the second sub-part closer to the display area, and the third portion and the second portion at least partially overlap.

3. The display panel according to claim 2, characterized in that, The second power supply structure further includes a fourth section, which is in a different layer from the third section but electrically connected; the length of the fourth section in the second direction is less than the length of the third section in the second direction. The fourth section and the second section are on the same layer, and the fourth section and the second section are arranged along the second direction.

4. The display panel according to claim 3, characterized in that, The third portion includes a third sub-portion and a fourth sub-portion that are electrically connected to each other. Along the first direction, the fourth sub-portion is located on the side of the third sub-portion away from the display area. The length of the fourth sub-portion in the second direction is less than the length of the third sub-portion in the second direction. Along a direction perpendicular to the plane of the substrate, the fourth sub-portion overlaps with and is electrically connected to the fourth portion.

5. The display panel according to claim 3, characterized in that, Along the second direction, the length of the fourth portion is less than the length of the second sub-portion.

6. The display panel according to claim 3, characterized in that, The display area includes a second power signal line, and the first non-display area includes a plurality of first connecting lines extending along the first direction; one end of the first connecting line is connected to the second power structure and the other end is connected to the second power signal line. The first connecting line and the fourth section are located on the same layer, with one end of part of the first connecting line connected to the third section and one end of part of the first connecting line connected to the fourth section.

7. The display panel according to claim 3, characterized in that, The first non-display area includes a first power trace; the first power trace is located on the side of the first power structure and the second power structure closer to the display area, and the first power structure is electrically connected to the first power trace; The display panel includes multiple second connecting lines, which extend along the first direction; Along a plane perpendicular to the substrate, at least one of the second connecting lines at least partially overlaps with the third portion; one end of the second connecting line is connected to the second portion and the other end is connected to the first power supply trace.

8. The display panel according to claim 7, characterized in that, The display area includes a second power signal line, and the first non-display area includes multiple lines extending along the first direction. A first connecting line; one end of the first connecting line is connected to the third section, and the other end is connected to the second power signal line; the first connecting line and the second connecting line are located in the same film layer; The first non-display area includes a first sub-area. Along the first direction, the first sub-area is located between the second sub-part and the display area. Along the second direction, the first sub-area is located between the first division and the fourth division. Within the first sub-area, n first connecting lines form a connecting line group. The second connecting lines and the connecting line group are arranged alternately along the second direction, where n = 1 or 2.

9. The display panel according to claim 8, characterized in that, The display panel includes a data line and a data lead. The data line includes a first data line, and the data lead includes a first data lead. The first data line is electrically connected to the first data lead, and the first data line extends from the first non-display area to the display area. The first data line includes a first sub-segment located in the first non-display area; the first sub-segment and the second connecting line are located in the same film layer; along a direction perpendicular to the plane of the substrate, the first sub-segment overlaps with the first power trace; Within the first sub-region, along the second direction, the first sub-segment is adjacent to the second connecting line and / or the first connecting line.

10. The display panel according to claim 7, characterized in that, The third section and the first power supply trace are located on the same layer.

11. The display panel according to claim 2, characterized in that, The first non-display area includes multiple data leads, each data lead including a first lead segment and a second lead segment. Along the first direction, the first lead segment is located on the side of the second lead segment away from the display area. The first lead segment extends along the first direction, and the extension direction of the second lead segment intersects both the first and second directions. The display panel includes data lines, the data lines include a first data line, and an extension of the first data line overlaps with the third portion; the data lead includes a first data lead, the first data line is connected to the first data lead, and the first data line extends from the first non-display area to the display area; the first data line includes a first sub-segment located in the first non-display area; along a direction perpendicular to the plane of the substrate, the first sub-segment overlaps with the third portion; The display panel includes a first metal layer and a second metal layer located on one side of the substrate, the second metal layer being located on the side of the first metal layer away from the substrate; the first data lead includes a first sub-data lead located on the first metal layer and a second sub-data lead located on the second metal layer; The first sub-data lead and the second sub-data lead are alternately electrically connected to the first sub-segment.

12. The display panel according to claim 11, characterized in that, The display panel further includes a third metal layer and a fourth metal layer located on one side of the substrate, wherein the third metal layer is located on the side of the second metal layer away from the substrate, and the fourth metal layer is located on the side of the third metal layer away from the substrate; The data line is located in the fourth metal layer, and the third portion is located in the third metal layer.

13. The display panel according to claim 2, characterized in that, The third portion includes a first side, a second side, and a third side. Along the first direction, the first side is located on the side of the second side closer to the display area. The third side connects to the second side and is located along the first direction... Between the second sub-part and the first side; Wherein, the first side and the second side extend along the second direction, and the included angle formed by the first side and the third side is an acute angle.

14. The display panel according to claim 2, characterized in that, Along the first direction, the minimum distance between the second sub-part and the third sub-part is d, where d ≥ 3 μm.

15. The display panel according to claim 2, characterized in that, The display panel includes two first power structures, with the two first power structures located on both sides of the second power structure along the second direction; the display area includes a center line extending along the first direction, and the extension of the center line overlaps with the second power structure. The third portion includes a first end and a second end in the second direction; along the first direction, the first end is located on the side of the second sub-part of one first power supply structure that is close to the display area, and the second end is located on the side of the second sub-part of another first power supply structure that is close to the display area.

16. The display panel according to claim 2, characterized in that, The display area includes a data line, a data connection line, a second power signal line, and a second auxiliary power line; the data line and the second power signal line extend along the first direction, the second auxiliary power line extends along the second direction, and the second power signal line and the second auxiliary power line intersect and are electrically connected; the data line includes a second data line, and the data connection line is electrically connected to the second data line; The data connection line includes at least one first segment extending along the first direction and at least one second segment extending along the second direction; the first segment and the second power signal line are located on the same layer, and the second segment and the second auxiliary power line are located on the same layer. The display area includes a first area and a second area arranged along a second direction. In the first area, multiple first line segments are continuously arranged along the second direction, and in the second area, multiple second power signal lines are continuously arranged along the second direction. Wherein, along the first direction, the first power supply structure at least partially overlaps with the first region, and the second power supply structure at least partially overlaps with the second region.

17. The display panel according to claim 2, characterized in that, The first power supply structure is a positive power supply structure, and the second power supply structure is a negative power supply structure.

18. The display panel according to claim 1, characterized in that, The first non-display area includes multiple data leads, each data lead including a first lead segment and a second lead segment. Along the first direction, the first lead segment is located on the side of the second lead segment away from the display area. The first lead segment extends along the first direction, and the extension direction of the second lead segment intersects both the first and second directions. The data leads include multiple second data leads. The display area includes a data line and a data connection line. The data line includes a second data line and a third data line. One end of the data connection line is connected to the second data line and the other end is connected to the second data lead. The extension line of the third data line overlaps with the first portion, and the third data line is electrically connected to the second data lead. Along a direction perpendicular to the plane containing the substrate, at least a portion of the second data lead overlaps with the first power supply structure; The display panel includes a first metal layer and a second metal layer located on one side of the substrate, the second metal layer being located on the side of the first metal layer away from the substrate; the second data lead includes a layer located on the first metal layer. The third sub-data lead and the fourth sub-data lead located in the second metal layer; The third sub-data lead and the fourth sub-data lead are arranged alternately.

19. The display panel according to claim 1, characterized in that, The first non-display area includes a first retaining wall; Along a plane perpendicular to the substrate, the second sub-part and the first barrier at least partially overlap.

20. The display panel according to claim 19, characterized in that, Along a plane perpendicular to the substrate, the first barrier overlaps with the edge of the second sub-part on the side away from the display area in the first direction.

21. The display panel according to claim 1, characterized in that, At least a portion of the first portion and at least a portion of the second portion are electrically connected through a plurality of vias, and / or at least a portion of the first portion and at least a portion of the second portion are connected in planar contact.

22. The display panel according to claim 1, characterized in that, The first non-display area further includes a bending area and a pad area; along the first direction, the pad area is located on the side of the bending area away from the display area; The first non-display area includes a first crossover line, which is connected to the first power structure and extends through the bend area to the pad area; One of the first power supply structures connects to at least three of the first crossovers.

23. A display device, characterized in that, Includes the display panel as described in any one of claims 1 to 22.

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