Display panel and display device

Abstract

The invention provides a display panel and a display device.The display panel comprises a display area and a peripheral area, first metal, second metal, a first passivation layer, a first insulating layer and a first electrode are arranged on the side, away from a substrate, of the peripheral area in different layers, and a first via hole and a second via hole are formed in the peripheral area; an insulating part arranged on the same layer as the first insulating layer is arranged between the first via hole and the second via hole, the first insulating layer is arranged on the side, away from the substrate, of the first passivation layer, the first electrode is located on the side, away from the substrate, of the insulating part, and the first electrode climbs through the insulating part; and the first metal and the second metal are respectively connected through the first via hole and the second via hole. The insulating part is arranged between the first via hole and the second via hole, the slope angle of the insulating part is small, and the insulating part has the characteristic of planarization, so that the slope angle of the first electrode during climbing is reduced, the climbing difficulty of the first electrode is reduced, the first electrode is prevented from directly climbing an abrupt slope, and the problem that the first electrode is easy to break is solved.

Description

Technical Field

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

[0002] The electrodes in the peripheral area of ​​the display panel are usually connected to the gate metal and the source and drain metal through vias, so that the gate metal and the source and drain metal are switched through the electrodes and the signal is transmitted. Since the electrodes in the peripheral area are relatively thin, they are prone to breakage, resulting in the display panel not being able to display normally. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a display panel and a display device to solve the problem that electrodes in the peripheral area are easily broken. The specific technical solution is as follows:

[0004] According to a first aspect of the present application, a display panel is provided, comprising a display area and a peripheral area, wherein a first metal, a second metal, a first passivation layer, a first insulating layer and a first electrode arranged in different layers are arranged on a side of the peripheral area away from a base substrate, a first via hole and a second via hole are opened in the peripheral area, an insulating portion arranged in the same layer as the first insulating layer is arranged between the first via hole and the second via hole, the first insulating layer is arranged on a side of the first passivation layer away from the base substrate, the first electrode is located on a side of the insulating portion away from the base substrate, the first electrode climbs over the insulating portion, and is connected to the first metal and the second metal through the first via hole and the second via hole respectively.

[0005] In addition, the display panel provided according to the first aspect of the present application may also have the following technical features:

[0006] In some embodiments, a second passivation layer is further provided between the first insulating layer and the first electrode, a second insulating layer is provided between the first metal and the second metal, the first via hole penetrates the second passivation layer, the first insulating layer, the first passivation layer and the second insulating layer along the thickness direction of the display panel and extends to the surface of the first metal, and the second via hole penetrates the second passivation layer, the first insulating layer and the first passivation layer along the thickness direction of the display panel and extends to the surface of the second metal.

[0007] In some embodiments, the first insulating layer and the insulating portion are made of the same material.

[0008] In some embodiments, a thickness of the insulating portion is less than a thickness of the first insulating layer.

[0009] In some embodiments, the thickness of the insulating portion is 2 / 5-1 / 2 of the thickness of the first insulating layer.

[0010] In some embodiments, the thickness of the first insulating layer is 1 μm-3 μm.

[0011] In some embodiments, the slope angles on both sides of the insulating part and the slope angle of the first insulating layer on one side close to the insulating part are a first slope angle, the slope angle of the first passivation layer at both ends of the second metal is a second slope angle, the first slope angle is smaller than the second slope angle, and the first slope angle is 40°-50°.

[0012] In some embodiments, the insulating portion and the second metal have an overlapping region, and a width of the overlapping region is 1 / 3-1 / 2 of a width of the insulating portion.

[0013] In some embodiments, the display area includes multiple thin film transistors, the first metal is in the same layer as the gate of the thin film transistor, the second metal is in the same layer as the source and drain metal of the thin film transistor; the first electrode is in the same layer as the pixel point electrode or common electrode of the display area.

[0014] In some embodiments, the first electrode is a top electrode, and a protective metal is provided on a side of the first electrode away from the base substrate, and the orthographic projection of the protective metal along the thickness direction of the display panel covers the orthographic projections of the first via hole and the second via hole along the thickness direction of the display panel.

[0015] In some embodiments, an outer edge of the protective metal extends beyond outer edges of the first via hole and the second via hole by a first distance greater than or equal to 4 μm.

[0016] In some embodiments, the protective metal is copper or aluminum, and the thickness of the protective metal is

[0017] A second aspect of the present application provides a display device, which includes the display panel described above.

[0018] Beneficial effects of the embodiments of the present application:

[0019] In the display panel and display device provided in the embodiments of the present application, the display area of ​​the display panel is the image display area, and the peripheral area is arranged around the display area. The peripheral area includes a gate driver on array (GOA), and the gate driver circuit includes a plurality of control signal lines, such as a signal line where the first metal is located and a signal line where the second metal is located. The first electrode is electrically connected to the first metal through a first via hole, and is electrically connected to the second metal through a second via hole, thereby realizing the transfer of the first metal and the second metal. The thickness of the first electrode is generally It is relatively thin, and breakpoints, that is, the first electrode is easily broken, may occur during the transition between the first metal and the second metal. In the embodiment of the present application, an insulating portion is provided between the first via hole and the second via hole, and the first electrode is provided on the side of the insulating portion away from the substrate. The insulating portion has a small slope angle and has the characteristics of flattening, which reduces the slope angle of the first electrode when climbing, helps to reduce the climbing difficulty of the first electrode, and avoids the first electrode directly climbing a steep slope, thereby solving the problem of the first electrode being prone to breakpoints. On the other hand, since the first electrode is not prone to breakage when climbing, the display panel manufacturing process is also more extensive.

[0020] Of course, implementing any product or method of the present application does not necessarily require achieving all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other embodiments can also be obtained based on these drawings.

[0022] Figure 1 A schematic diagram of a cross-sectional structure of a peripheral area of ​​a display panel provided in an embodiment of the present application in an embodiment;

[0023] Figure 2 A schematic diagram of a cross-sectional structure of a display area of ​​a display panel provided in an embodiment of the present application in an embodiment;

[0024] Figure 3 A schematic diagram of a cross-sectional structure of a peripheral area of ​​a display panel provided in an embodiment of the present application in another embodiment;

[0025] Figure 4 Another top view of the peripheral area of ​​the display panel provided by the embodiment of the present application;

[0026] Figure 5 for Figure 4 The cross-sectional view of the panel along the AA direction is shown in the figure;

[0027] Figure 6 for Figure 5 A top view of the panel is shown in FIG.

[0028] The figure numbers are as follows: peripheral area 10; first metal 101; second metal 102; first passivation layer 103; first insulating layer 104a; insulating part 104b; first electrode 105; second insulating layer 106; second passivation layer 107; first via 108; second via 109; first slope angle α1; second slope angle α2; width W1 of overlapping area; width W2 of insulating part; thickness H1 of insulating part; thickness H2 of first insulating layer; protective metal 110; first distance L; display area 20; pixel electrode 201; common electrode 202; gate 203; source and drain metal 204; substrate 30. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field based on the present application belong to the scope of protection of the present application.

[0030] A first aspect of an embodiment of the present application provides a display panel, Figure 1 , Figure 2 As shown, Figure 1 It is a schematic diagram of the cross-sectional structure of the peripheral area 10 of the display panel. Figure 2 Schematic diagram of the cross-sectional structure of the display area 20 of the display panel. The display panel includes the display area 20 and the peripheral area 10. In the peripheral area 10, a first metal 101, a second metal 102, a first passivation layer 103, a first insulating layer 104a and a first electrode 105 arranged in different layers are arranged on the side away from the base substrate 30. The peripheral area 10 is provided with a first via hole 108 and a second via hole 109. An insulating portion 104b arranged in the same layer as the first insulating layer 104a is arranged between the first via hole 108 and the second via hole 109. The first insulating layer 104a is arranged on the side of the first passivation layer 103 away from the base substrate 30. The first electrode 105 is located on the side of the insulating portion 104b away from the base substrate 30. The first electrode 105 climbs over the insulating portion 104b and is connected to the first metal 101 and the second metal 102 through the first via hole 108 and the second via hole 109, respectively.

[0031] The display area 20 is an image display area 20 domain, and the peripheral area 10 is arranged around the display area 20. The peripheral area 10 includes a gate 203 driving circuit, and the gate 203 driving circuit includes a plurality of control signal lines, such as a signal line where the first metal 101 is located and a signal line where the second metal 102 is located. The first electrode 105 is electrically connected to the first metal 101 through the first via 108, and is electrically connected to the second metal 102 through the second via 109, thereby realizing the transfer of the first metal 101 and the second metal 102. The thickness of the first electrode 105 is generally It is relatively thin, and in the process of transferring the first metal 101 and the second metal 102, breakpoints are likely to occur, that is, the first electrode 105 is broken. In the embodiment of the present application, an insulating portion 104b is provided between the first via hole 108 and the second via hole 109, and the first electrode 105 is provided on the side of the insulating portion 104b away from the base substrate 30. The insulating portion 104b has a small slope angle and has the characteristics of flattening, which reduces the slope angle of the first electrode 105 when climbing the slope, which is conducive to reducing the climbing difficulty of the first electrode 105 and avoiding the first electrode 105 directly climbing the steep slope, thereby solving the problem of the first electrode 105 being prone to breakpoints. On the other hand, since the first electrode 105 is not prone to breakage when climbing the slope, the display panel manufacturing process is also wider.

[0032] It should be noted that the first electrode 105 crawling over the insulating portion 104b means that the first electrode 105 is formed by adhering to the morphology of the insulating portion 104b, and is electrically connected to the first metal 101 and the second metal 102 through the first via 108 and the second via 109. In actual production, the first electrode 105 is generally prepared by a deposition process, such as chemical vapor deposition, physical vapor deposition, etc. When the first electrode 105 is deposited on the side of the insulating portion 104b away from the base substrate 30, the first electrode 105 naturally forms a morphology consistent with the outer contour of the insulating portion 104b.

[0033] In some embodiments, Figure 1 As shown, a second insulating layer 106 is provided between the first metal 101 and the second metal 102, a first via 108 penetrates the first insulating layer 104a, the first passivation layer 103 and the second insulating layer 106 along the thickness direction of the display panel and extends to the surface of the first metal 101, and a second via 109 penetrates the first insulating layer 104a and the first passivation layer 103 along the thickness direction of the display panel and extends to the surface of the second metal 102.

[0034] In this embodiment, the first metal 101 and the second metal 102 are insulated by the second insulating layer 106, so that the signal line where the first metal 101 is located and the signal line where the second metal 102 is located can work independently. The first via 108 penetrates the first insulating layer 104a, the first passivation layer 103 and the second insulating layer 106 and extends to the surface of the first metal 101, that is, the first metal 101 is arranged on the side of the second insulating layer 106 close to the base substrate 30, and the second metal 102 is arranged on the side of the second insulating layer 106 away from the base substrate 30.

[0035] In this embodiment, Figure 1As shown, the first electrode 105 is disposed in contact with the first insulating layer 104 a , that is, there is no other insulating layer between the first electrode 105 and the first insulating layer 104 a , and one less insulating layer may be etched during the process of etching to form the first via hole 108 and the second via hole 109 .

[0036] Of course, the first electrode 105 may not be in direct contact with the first insulating layer 104a, that is, a second passivation layer 107 is provided between the first insulating layer 104a and the first electrode 105. Figure 3 A second insulating layer 106 is provided between the first metal 101 and the second metal 102, a first via hole 108 penetrates the second passivation layer 107, the first insulating layer 104a, the first passivation layer 103 and the second insulating layer 106 along the thickness direction of the display panel and extends to the surface of the first metal 101, and a second via hole 109 penetrates the second passivation layer 107, the first insulating layer 104a and the first passivation layer 103 along the thickness direction of the display panel and extends to the surface of the second metal 102.

[0037] In some embodiments, the first insulating layer 104a and the insulating portion 104b are made of the same material. The two are made of the same material, and a deposition process can be used to form an insulating layer that covers the entire layer, and then the first insulating layer 104a and the insulating portion 104b are formed respectively through exposure, development, and etching processes, thereby simplifying the manufacturing process of the display panel. Exemplarily, the first insulating layer 104a and the insulating portion 104b are both made of organic material (ORG). When forming the insulating portion 104b, the ORG adopts HTM (Half Tone Mask) technology to retain a certain thickness of the ORG layer in the middle of the via to form the so-called insulating portion 104b. Using the ORG HTM technology, because the ORG has a small slope angle and flattening characteristics, the height difference can be smoothed, so that the first electrode 105 is not easy to break when climbing and bridging, thereby increasing the process margin (range).

[0038] In some embodiments, in combination Figure 4 and Figure 5 As shown, Figure 4 is a top view of the peripheral area 10 of the display panel, Figure 5 for Figure 4 The thickness H1 of the insulating portion is smaller than the thickness H2 of the first insulating layer.

[0039] By appropriately reducing the thickness H1 of the insulating portion, the height difference between the insulating portion 104b and the first passivation layer 103 can be reduced while reducing the slope angle, shortening the climbing distance of the first electrode 105, saving the material used for the first electrode 105, reducing the production cost, and improving the production efficiency. On the other hand, shortening the climbing distance of the first electrode 105 can also reduce the probability of fracture.

[0040] Optionally, the thickness H1 of the insulating portion is 2 / 5-1 / 2 of the thickness H2 of the first insulating layer. For example, the thickness H1 of the insulating portion may be 0.8 times, 0.7 times, 0.6 times, 0.5 times, etc., of the thickness of the first insulating layer 104a.

[0041] The smaller the thickness of the insulating part 104b, the shorter the climbing distance. However, the smaller the thickness of the insulating part 104b, the less improvement on the first slope angle α1 on both sides of the insulating part 104b. Taking the above factors into consideration, the thickness H1 of the insulating part is set to 2 / 5-1 / 2 of the thickness H2 of the first insulating layer.

[0042] Optionally, the thickness H1 of the insulating portion may be between 0.8 μm and 1 μm.

[0043] Optionally, the thickness H2 of the first insulating layer may be 1 μm-3 μm, for example, the thickness H2 of the first insulating layer may be 1.5 μm, 1.8 μm, 2 μm, 2.2 μm, 2.5 μm, etc.

[0044] The greater the thickness H2 of the first insulating layer, the better the planarization effect on the surface of the first passivation layer 103. However, the greater the thickness H2 of the first insulating layer, the greater the thickness of the display panel. Therefore, while meeting the planarization requirements and improving the slope angle, the thickness H2 of the first insulating layer should not be too large.

[0045] In some embodiments, Figure 5 As shown, the slope angles on both sides of the insulating part 104b and the slope angle of the first insulating layer 104a on the side close to the insulating part 104b are the first slope angle α1, and the slope angle of the first passivation layer 103 at both ends of the second metal 102 is the second slope angle α2. The first slope angle α1 is smaller than the second slope angle α2, and the first slope angle α1 is 40°-50°. For example, the first slope angle α1 can be 40°, 45°, 50°, etc.

[0046] In this embodiment, the first slope angle α1 is smaller than the second slope angle α2, so the first insulating layer 104a and the insulating portion 104b can reduce the climbing difficulty of the first electrode 105 and avoid the problem of the first electrode 105 directly climbing the steep slope and being broken.

[0047] In some embodiments, Figure 5 As shown, the insulating portion 104 b and the second metal 102 have an overlapping region, and the width W1 of the overlapping region is 1 / 3-1 / 2 of the width W2 of the insulating portion, for example, it can be 0.65, 0.6, 0.55, 0.5, etc.

[0048] By setting an overlapping area between the insulating part 104b and the second metal 102, the insulating part 104b can flatten the first passivation layer 103 on the surface of the second metal 102, thereby changing the climbing path of the first electrode 105 to bypass the steep section at the surface of the second passivation layer 107 opposite to the second metal 102.

[0049] Furthermore, combined with Figure 5 and Figure 6 The width W1 of the overlapped area may be 1 / 3-1 / 2 of the width W2 of the insulating portion. This configuration allows the second via 109 to have an appropriate size and allows the first slope angle α1 of the insulating portion 104b to be within a reasonable range, such as 40°-50°.

[0050] Exemplarily, the width of the insulating portion 104 b is 8 μm, and the width W1 of the overlapping region is 3.5 μm.

[0051] In some embodiments, in combination Figure 1 and Figure 2 The display area 20 includes multiple thin film transistors, the first metal 101 is in the same layer as the gate 203 of the thin film transistor, the second metal 102 is in the same layer as the source and drain metal 204 of the thin film transistor; the first electrode 105 is in the same layer as the pixel electrode or common electrode 202 of the display area 20.

[0052] The first metal 101 is in the same layer as the gate electrode 203 of the thin film transistor, so that the first metal 101 can be manufactured simultaneously with the gate electrode 203, that is, the first metal 101 can be formed with the gate electrode 203 through a mask process, which simplifies the manufacturing process of the display panel. The first electrode 105 is in the same layer as the pixel electrode 201 or the common electrode 202 of the display area 20, so that the first electrode 105 can be manufactured simultaneously with the pixel electrode 201 or the common electrode 202 of the display area 20, that is, the first electrode 105 can be formed with the pixel electrode 201 or the common electrode 202 through a mask process, which simplifies the manufacturing process of the display panel.

[0053] refer to Figure 2The schematic diagram of the cross-sectional structure of the display area of ​​the display panel shown. When the first electrode 105 and the common electrode 202 are in the same layer, a pixel electrode 201 is generally provided on the side of the common electrode 202 away from the display panel, and the pixel electrode 201 is the top electrode. A second passivation layer 107 is provided between the first electrode 105 and the pixel electrode 201. The first metal 101 and the second metal 102 are bridged by the first electrode 105. When etching the first via hole 108 and the second via hole 109, one less layer of the second passivation layer 107 can be etched, which can shorten the etching time and is less likely to cause undercut problems. In addition, the first electrode 105 is covered with a second passivation layer 107, which can protect the first electrode 105 and reduce the risk of corrosion of the first electrode 105.

[0054] refer to Figure 3 When the first electrode 105 and the pixel electrode 201 are in the same layer, the pixel electrode 201 is generally the top electrode, and a common electrode ( Figure 3 (not shown), a second passivation layer 107 is provided between the first electrode 105 and the common electrode 202. The first metal 101 and the second metal 102 are bridged by the first electrode 105, so when etching the first via hole 108 and the second via hole 109, the second passivation layer 107 needs to be etched together.

[0055] In practical applications, the first electrode 105 can be a top electrode, which uses the HTM technology to bridge the first metal 101 and the second metal 102, or a bottom electrode, which uses the HTM technology to bridge the first metal 101 and the second metal 102. Figure 1 , Figure 3 and Figure 5 It illustrates several different situations when the first electrode 105 uses the HTM technology to bridge the first metal 101 and the second metal 102, which does not constitute a limitation on whether the first electrode 105 is a top electrode or a bottom electrode. That is, the first electrode 105 is located in the topmost layer, which does not mean that it is definitely a top electrode, and the first electrode 105 is located in the second top layer or the third layer, etc., which does not mean that it is definitely a bottom electrode.

[0056] In some embodiments, Figure 5 , Figure 6 As shown, Figure 6 for Figure 5 In the top view of the display panel, the first electrode 105 is the top electrode, and a protective metal 110 is provided on the side of the first electrode 105 away from the base substrate 30. The orthographic projection of the protective metal 110 along the thickness direction of the display panel covers the orthographic projection of the first via 108 and the second via 109 along the thickness direction of the display panel.

[0057] In this embodiment, a protective metal 110 is provided on the side of the first electrode 105 away from the base substrate 30. The protective metal 110 is located between the first electrode 105 and the second passivation layer 107. The protective metal 110 may preferably be a metal material with good conductivity and stable chemical properties. Since the protective metal 110 is thicker than the first electrode 105 and has a much smaller square resistance, it can effectively reduce V com (common voltage) resistance. Generally, the thickness of the protective metal 110 is The sheet resistance of the first electrode 105 is about 30Ω / □, the sheet resistance of Cu is about 0.07Ω / □, and the sheet resistance of Al is about 0.3Ω / □.

[0058] In addition, the first electrode 105 is covered with a protective metal 110, and the thicker protective metal 110 improves the water blocking ability of the first via 108 and the second via 109. The protective metal 110 is also covered with a second passivation layer 107 to further protect the first via 108 and the second via 109, thereby reducing the risk of corrosion of the first via 108 and the second via 109.

[0059] and Figure 1 The difference is, Figure 5 In the embodiment shown, a protective metal 110 and a second passivation layer 107 are sequentially provided on a side of the first electrode 105 away from the substrate 30. Figure 1 In the illustrated embodiment, only the second passivation layer 107 is disposed on the side away from the first electrode 105 . The second passivation layer 107 protects the top electrode and prevents water vapor from invading and corroding the top electrode. Figure 6 The protective metal 110 can also reduce the V com resistance.

[0060] In some embodiments, Figure 5 As shown, the outer edge of the protective metal 110 exceeds the outer edge of the first via hole 108 and the second via hole 109 by a first distance L greater than or equal to 4 μm, for example, the first distance L may be 4 μm, 4.5 μm, 5 μm, 5.5 μm, etc. The outer edge of the protective metal 110 exceeds the outer edge of the first via hole 108 and the second via hole 109 by a first distance L greater than or equal to 4 μm, and the coverage area of ​​the first via hole 108 and the second via hole 109 is larger, which can better protect the first via hole 108 and the second via hole 109 and reduce the risk of corrosion of the first via hole 108 and the second via hole 109.

[0061] Optionally, the protective metal 110 is copper or aluminum, and the thickness of the protective metal 110 is For example, the thickness of the protective metal 110 can be wait.

[0062] Copper and aluminum have good conductivity and small sheet resistance, so the protective metal 110 is made of copper and aluminum, which can effectively reduce V com resistance.

[0063] A second aspect of an embodiment of the present application provides a display device, which includes the display panel described above.

[0064] In this embodiment, the display device includes a display panel, and the signal lines in the peripheral area 10 of the display panel, such as the signal lines where the first metal 101 is located and the signal lines where the second metal 102 is located, are cross-connected between the first metal 101 and the second metal 102 through the first electrode 105. And by setting an insulating portion 104b between the first via 108 and the second via 109, the first electrode 105 is set on the side of the insulating portion 104b away from the base substrate 30. The slope angle of the insulating portion 104b is small and has the characteristics of flattening, which reduces the slope angle of the first electrode 105 when climbing, which is conducive to reducing the difficulty of climbing the first electrode 105 and avoiding the first electrode 105 directly climbing a steep slope. Therefore, the problem that the first electrode 105 is prone to breakage can be solved, thereby improving the production yield of the display device. On the other hand, since the first electrode 105 is not prone to breakage when climbing, the display panel manufacturing process is also made wider.

[0065] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0066] Each embodiment in this specification is described in a related manner, and the same or similar parts between the embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0067] The above description is only a preferred embodiment of the present application and is not intended to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims

1. A display panel, characterized in that: The display panel includes a display area and a peripheral area. In the peripheral area, a first metal, a second metal, a first passivation layer, a first insulating layer and a first electrode arranged in different layers are arranged on a side away from the base substrate. The peripheral area is provided with a first via hole and a second via hole. An insulating part arranged in the same layer as the first insulating layer is arranged between the first via hole and the second via hole. The first insulating layer is arranged on a side of the first passivation layer away from the base substrate. The first electrode is located on a side of the insulating part away from the base substrate. The first electrode climbs over the insulating part and is connected to the first metal and the second metal through the first via hole and the second via hole respectively.

2. The display panel according to claim 1, characterized in that: A second passivation layer is also provided between the first insulating layer and the first electrode, a second insulating layer is provided between the first metal and the second metal, the first via hole penetrates the second passivation layer, the first insulating layer, the first passivation layer and the second insulating layer along the thickness direction of the display panel and extends to the surface of the first metal, and the second via hole penetrates the second passivation layer, the first insulating layer and the first passivation layer along the thickness direction of the display panel and extends to the surface of the second metal.

3. The display panel according to claim 2, characterized in that: The first insulating layer and the insulating portion are made of the same material.

4. The display panel according to claim 1, characterized in that: The thickness of the insulating portion is smaller than the thickness of the first insulating layer.

5. The display panel according to claim 4, characterized in that: The thickness of the insulating portion is 2 / 5 to 1 / 2 of the thickness of the first insulating layer.

6. The display panel according to claim 4, characterized in that: The thickness of the first insulating layer is 1 μm-3 μm.

7. The display panel according to claim 1, characterized in that: The slope angles on both sides of the insulating part and the slope angle of the first insulating layer on one side close to the insulating part are the first slope angle, the slope angle of the first passivation layer at both ends of the second metal is the second slope angle, the first slope angle is smaller than the second slope angle, and the first slope angle is 40°-50°.

8. The display panel according to any one of claims 1 to 7, characterized in that: The insulating portion and the second metal have an overlapping region, and a width of the overlapping region is 1 / 3-1 / 2 of a width of the insulating portion.

9. The display panel according to any one of claims 1 to 7, characterized in that: The display area includes a plurality of thin film transistors, the first metal is in the same layer as the gate electrode of the thin film transistor, and the second metal is in the same layer as the source and drain electrode metal of the thin film transistor; The first electrode is in the same layer as the pixel electrode or the common electrode of the display area.

10. The display panel according to any one of claims 1 to 7, characterized in that: The first electrode is a top electrode, and a protective metal is provided on a side of the first electrode away from the base substrate. The orthographic projection of the protective metal along the thickness direction of the display panel covers the orthographic projections of the first via hole and the second via hole along the thickness direction of the display panel.

11. The display panel according to claim 10, characterized in that: The outer edge of the protective metal exceeds the outer edges of the first via hole and the second via hole by a first distance that is greater than or equal to 4 μm.

12. The display panel according to claim 10, characterized in that: The protective metal is copper or aluminum, and the thickness of the protective metal is 13. A display device, characterized in that: The display device comprises the display panel according to any one of claims 1 to 12.

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