Display panel and display device

Abstract

The application discloses a display panel and a display device, and belongs to the technical field of display. The display panel comprises a substrate, a first metal layer, a second metal layer and a third metal layer. The first metal layer is arranged on one side of the substrate and comprises a plurality of first wires arranged at intervals. The second metal layer is arranged on one side of the substrate and is arranged in a layer different from the first metal layer. The second metal layer comprises a second wire. In a plan view of the display panel, the plurality of first wires and the second wire cross and overlap. The third metal layer is located between the first metal layer and the second metal layer. The third metal layer comprises a plurality of shielding pieces. The shielding pieces are insulated from the first metal layer and the second metal layer respectively. The shielding pieces are located at least at the overlapping positions between the first wires and the second wire. The application can improve the stability of the internal structure of the display panel.

Description

Technical Field

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

[0002] In organic light-emitting diode (OLED) display panels, when the insulating film layer at the intersection of two traces is thin and the current density within the traces is too high, electrostatic discharge (ESD) is prone to occur at the intersection of the two traces, affecting the stability of the internal structure of the display panel.

[0003] Therefore, it is necessary to propose a new technical solution to solve the above-mentioned technical problems. Summary of the Invention

[0004] The purpose of this application is to provide a display panel and display device that can improve the stability of the internal structure of the display panel.

[0005] To solve the above problems, the technical solution of this application is as follows: In one embodiment of this application, a display panel is provided, comprising: Substrate; A first metal layer is disposed on one side of the substrate and includes a plurality of spaced first traces; A second metal layer is disposed on one side of the substrate and is disposed separately from the first metal layer. The second metal layer includes a second trace, and in a plan view of the display panel, multiple first traces intersect and overlap with one second trace; and A third metal layer is located between the first metal layer and the second metal layer. The third metal layer includes a plurality of shielding elements, which are respectively insulated from the first metal layer and the second metal layer. The shielding elements are located at least at the intersection between the first trace and the second trace.

[0006] Optionally, the display panel includes a display area and a non-display area located on one side of the display area, with a portion of the first trace, the second trace, and the shielding member located in the non-display area. In a plan view of the display panel, The first trace extends along a first direction, and multiple first traces are arranged at intervals along a second direction, with the first direction intersecting the second direction; The second trace extends along the second direction; The shielding components are respectively overlapped with the first trace and the second trace.

[0007] Optionally, in the plan view of the display panel, The shielding component extends along the second direction, and multiple shielding components are arranged at intervals along the first direction, with each shielding component intersecting and overlapping with multiple first traces.

[0008] Optionally, the non-display area includes a central area and an edge area surrounding the central area; The first trace and the second trace are located in the middle region and the edge region, respectively; The shielding element is at least located in the intermediate region and at the intersection between the first trace and the second trace.

[0009] Optionally, at least one end of the shielding member in the second direction extends to the edge region and is located at the intersection between the first trace and the second trace.

[0010] Optionally, a plurality of the shielding elements are arranged at intervals along the first direction in the edge region and located at the intersection between the first trace and the second trace.

[0011] Optionally, in a plan view of the display panel, the width of the shielding member gradually increases from both ends of the shielding member in the second direction toward the center of the shielding member.

[0012] Optionally, in a plan view of the display panel, a gap is formed between two adjacent shielding members; The width of the gap gradually decreases in the first direction from the edge region toward the center region.

[0013] Optionally, the shielding element is made of metal and is configured to be electrically floated or grounded.

[0014] Optionally, the display panel further includes: A first insulating layer is disposed between the first metal layer and the third metal layer; A second insulating layer is disposed between the third metal layer and the second metal layer; A data cable is provided in the display area, the data cable is disposed on the same layer as the first trace, and the first insulating layer covers the data cable; and The anode is located in the display area and is disposed on the same layer as the second trace.

[0015] In one embodiment of this application, a shielding element is provided at the intersection of the first trace and the second trace, and the shielding element is located between the first trace and the second trace. The shielding element can smoothly transition the electric field of the first trace and the electric field of the second trace, reducing the risk of electrostatic discharge at the intersection of the first trace and the second trace. The multiple shielding elements are also spaced apart, which can reduce the load generated by the shielding elements on the first trace and the second trace, and improve the stability of the internal structure of the display panel.

[0016] In another embodiment of this application, a display panel is provided, comprising: Substrate; A first metal layer is disposed on one side of the substrate and includes a plurality of spaced first traces; A second metal layer is disposed on one side of the substrate and is disposed separately from the first metal layer. The second metal layer includes a second trace, and in a plan view of the display panel, multiple first traces intersect and overlap with one second trace; and A fourth metal layer is disposed on one side of the substrate and is disposed separately from the first metal layer and the second metal layer. The fourth metal layer includes multiple third traces. The second trace is insulated from the third trace, the first trace is electrically connected to at least one of the third traces, and the third trace is located at least at the intersection of the first trace and the second trace.

[0017] Optionally, the display panel includes a display area and a non-display area located on one side of the display area, wherein the first trace, the second trace, and the third trace are located in the non-display area. In a plan view of the display panel, The first trace extends along a first direction, and multiple first traces are arranged at intervals along a second direction, with the first direction intersecting the second direction; The second trace extends along the second direction; The third trace extends along the first direction, and the first trace overlaps with the third trace.

[0018] Optionally, the width of the third trace in the second direction is less than or equal to the width of the first trace in the second direction.

[0019] Optionally, the fourth metal layer is located between the first metal layer and the second metal layer; Alternatively, the fourth metal layer may be located between the substrate and the first metal layer.

[0020] Optionally, the fourth metal layer is located between the first metal layer and the second metal layer; The display panel also includes: A first insulating layer is disposed between the first metal layer and the fourth metal layer; A second insulating layer is disposed between the fourth metal layer and the second metal layer; A data cable is provided in the display area, the data cable is disposed on the same layer as the first trace, and the first insulating layer covers the data cable; A transition cable is provided in the display area, and the transition cable is disposed on the same layer as the third cable; and An anode is located in the display area, and is disposed on the same layer as the second trace. The anode is electrically connected to the adapter trace.

[0021] In another embodiment of this application, a third trace is provided at the intersection of the first trace and the second trace, and the third trace is electrically connected to the first trace. Since the third trace is connected in parallel with the first trace, the current-carrying cross-sectional area of ​​the current reaching the intersection of the first trace and the second trace through the first trace is increased, which reduces the current density in the first trace and the third trace, thereby reducing the risk of electrostatic discharge at the intersection of the first trace and the second trace and improving the stability of the internal structure of the display panel.

[0022] This application also proposes a display device, including a display panel. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0025] Figure 1 This is a schematic diagram of the display panel according to the first embodiment of this application; Figure 2 This is a plan view of the first and second routing lines according to the first embodiment of this application; Figure 3 This is a plan view of the display panel according to the first embodiment of this application; Figure 4 This is a plan view of the third metal layer according to the first embodiment of this application; Figure 5 This is a schematic diagram of the display panel according to the second embodiment of this application; Figure 6 This is a plan view of the first and second routing lines according to the second embodiment of this application; Figure 7 This is a plan view of the display panel according to the second embodiment of this application.

[0026] Explanation of reference numerals in the attached figures: 100. Display panel; D1. First direction; D2. Second direction; NA. Non-display area; NA1. Center area; NA2. Edge area; 10. First metal layer; 11. First trace; 20. Second metal layer; 21. Second trace; 30. Third metal layer; 31. Shielding component; 32. Gap; 40. Fourth metal layer; 41. Third trace; 51. Substrate; 52. First insulating layer; 53. Second insulating layer. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0028] This application discloses a display device, which can be a tablet computer, e-reader, electronic display screen, laptop computer, mobile phone, augmented reality (AR) / virtual reality (VR) device, media player, wearable device, digital camera, car navigation system, etc. The display device includes a display panel 100.

[0029] Optionally, the display panel 100 of this application is an organic light-emitting diode display panel 100.

[0030] In the first embodiment of this application: Please see Figure 1 The first embodiment of this application proposes a display panel 100, including a substrate 51, a first metal layer 10, a second metal layer 20 and a third metal layer 30.

[0031] A first metal layer 10 is disposed on one side of the substrate 51. The first metal layer 10 includes a plurality of spaced first traces 11.

[0032] The second metal layer 20 is disposed on one side of the substrate 51 and is disposed separately from the first metal layer 10. The second metal layer 20 includes a second trace 21. Please refer to [link / reference]. Figure 2In the plan view of the display panel 100, multiple first traces 11 intersect and overlap with a second trace 21.

[0033] Please see Figure 1 The third metal layer 30 is located between the first metal layer 10 and the second metal layer 20. The third metal layer 30 includes a plurality of shielding elements 31. The shielding elements 31 are insulated from the first metal layer 10 and the second metal layer 20, respectively. The shielding elements 31 are located at least at the intersection between the first trace 11 and the second trace 21.

[0034] In a first embodiment of the display panel 100 of this application, a shielding member 31 is provided at the intersection of the first trace 11 and the second trace 21, and the shielding member 31 is located between the first trace 11 and the second trace 21. The shielding member 31 can smoothly transition the electric field of the first trace 11 and the electric field of the second trace 21, reducing the risk of electrostatic discharge at the intersection of the first trace 11 and the second trace 21. The spaced arrangement of multiple shielding members 31 can also reduce the load generated by the shielding members 31 on the first trace 11 and the second trace 21, and improve the stability of the internal structure of the display panel 100.

[0035] Optionally, the material of the shield 31 includes metal. The shield 31 is configured to be electrically floating.

[0036] In this embodiment, the reason why the electrically floating metal shield 31 can reduce the risk of electrostatic discharge is: First, without shielding 31, the first trace 11 and the second trace 21 are coupled through the insulating layer between them. The electric field will be concentrated between the first trace 11 and the second trace 21, which will increase the risk of electrostatic discharge.

[0037] After a shielding element 31 is placed between the intersection of the first trace 11 and the second trace 21, the electric field of the first trace 11 will first couple to the shielding element 31, and then the shielding element 31 will couple to the second trace 21 on the other side. This is equivalent to splitting the original high voltage difference and high field strength space into two segments, thereby reducing the electric field strength of a single segment, reducing the local peak electric field, and thus reducing the probability of breakdown.

[0038] Secondly, although the metal shield 31 is electrically floating, it is affected by the electric fields of the first trace 11 and the second trace 21 on both sides, generating induced charges and causing the potential of the metal shield 31 to drift to an intermediate state. This intermediate potential can mitigate the voltage difference between the upper and lower layers of the first trace 11 and the second trace 21, making the electric field distribution more uniform and avoiding excessive concentration of the electric field in any one place, thereby reducing the risk of electrostatic discharge.

[0039] Furthermore, the metal shield 31 forms two capacitors with the first trace 11 and the second trace 21, respectively. The first capacitor is formed by the metal shield 31 and the first trace 11. The second capacitor is formed by the metal shield 31 and the second trace 21. This can be equivalent to transforming the large capacitor originally formed by the first trace 11 and the second trace 21 into two series capacitors, making it less likely for the transient voltage to jump too much at once. This spreads out the high voltage spike during electrostatic discharge, reducing the risk of electrostatic discharge.

[0040] Finally, electrostatic discharge often occurs at the weakest, most concentrated, and shortest path location of the first trace 11 and the second trace 21. By placing a thick metal shield 31 between the first trace 11 and the second trace 21, the original discharge path is interrupted, making it more difficult for the discharge to cross the first trace 11 and the second trace 21 in one step. Instead, it requires a more complex coupling and distribution process, which can lengthen the effective discharge path, reduce the probability of local breakdown, reduce the formation of strong electric field hotspots at a certain point, and reduce the risk of electrostatic discharge.

[0041] In summary, the electrically levitated metal shield 31 can reduce the risk of electrostatic discharge at the intersection of the first trace 11 and the second trace 21 through induced voltage division, field shielding and charge redistribution, thereby improving the stability of the internal structure of the display panel 100.

[0042] Optionally, shield 31 is configured to be grounded.

[0043] In this embodiment, the grounded metal shield 31 reduces the risk of electrostatic discharge because: First, without the shield 31, the electric fields of the first trace 11 and the second trace 21 would penetrate the insulation layer between them, forming strong inter-line coupling. After placing the shield 31 between the overlap of the first trace 11 and the second trace 21, the electric field of the first trace 11 would first couple to the shield 31. Since the shield 31 maintains a stable ground potential, the second trace 21 would no longer directly bear the strong electric field of the first trace 11. This embodiment can reduce the peak inter-line electric field, thereby reducing the risk of electrostatic discharge.

[0044] Secondly, one of the essential aspects of electrostatic discharge is the accumulation of localized charge. When the shielding component 31 is grounded, it is not floating; instead, it has a low-impedance charge discharge path. Therefore, the induced charge is conducted to ground, preventing accumulation in the intermediate layer and avoiding pushing the electric field to dangerous levels. Compared to a floating shielding component 31, grounding it better reduces the risk of electrostatic discharge. However, grounding the shielding component 31 increases the complexity of wiring within the display panel 100. Therefore, a floating shielding component 31 design can also reduce production costs and improve production efficiency.

[0045] Furthermore, the shielding element 31 acts as a fixed reference surface, which smooths out the potentially concentrated electric field. This prevents the electric field from concentrating at a localized point between the first trace 11 and the second trace 21, instead distributing it more widely between the shielding element 31 and the first trace 11, and between the shielding element 31 and the second trace 21. This embodiment reduces single-point stress, making electrostatic discharge less likely to be triggered.

[0046] In summary, the grounded shield 31 has a fixed potential and forms a charge discharge channel, which can reduce the risk of electrostatic discharge at the intersection of the first trace 11 and the second trace 21 and improve the stability of the internal structure of the display panel 100.

[0047] To avoid redundancy, the following embodiments will be described with the shield 31 configured as electrically floating as an example, but it is not excluded that the shield 31 may be configured as grounded for protection.

[0048] Optionally, the display panel 100 includes a display area and a non-display area NA located on one side of the display area.

[0049] Part of the first trace 11, the second trace 21, and the shielding component 31 are located in the non-display area NA.

[0050] In this embodiment, the first trace 11 is a power line. The first trace 11 is used to supply power to the pixel driving circuit of the organic light-emitting diode display panel 100.

[0051] The second trace 21 is the cathode power supply line. The second trace 21 is used to electrically connect to the cathode layer of the organic light-emitting diode display panel 100.

[0052] Because the driving current of organic light-emitting diodes is relatively large, the current density of the first trace 11, which serves as the power supply line, is also relatively high. The thickness of the insulating layer between the first trace 11 and the second trace 21 is less than or equal to 500 nanometers, making electrostatic discharge (ESD) prone to occur at the overlap of the first trace 11 and the second trace 21. Therefore, providing a shield 31 between the overlap of the first trace 11 and the second trace 21 can reduce the risk of ESD and improve the stability of the internal structure of the display panel 100.

[0053] Optionally, the display panel 100 also includes a first insulating layer 52, a second insulating layer 53, a data line, and an anode.

[0054] The first insulating layer 52 is disposed between the first metal layer 10 and the third metal layer 30.

[0055] The second insulating layer 53 is disposed between the third metal layer 30 and the second metal layer 20.

[0056] The data cable is located in the display area. The data cable is arranged on the same layer as the first trace 11, and the first insulation layer 52 covers the data cable.

[0057] The anode is located in the display area. The anode is installed on the same layer as the second wiring 21.

[0058] In this embodiment, during the fabrication of the first metal layer 10, the data lines of the display area and the first traces 11 of the non-display area NA can be fabricated simultaneously using the same photomask, reducing the additional photomasks used to fabricate the data lines and the first traces 11 separately, reducing the number of photomasks used, and lowering production costs.

[0059] During the fabrication of the second metal layer 20, the anode of the display area and the second trace 21 of the non-display area NA can be fabricated simultaneously using the same photomask, reducing the additional photomask used to fabricate the anode and the second trace 21 separately, reducing the number of photomasks used, and lowering production costs.

[0060] It is important to understand that the traces located below and above the anode in the display area also include transition traces. These transition traces are used to connect the anode and the pixel driving circuitry. During the fabrication of the third metal layer 30, the transition traces of the display area and the shielding component 31 of the non-display area NA can be fabricated simultaneously using the same photomask. This reduces the need for separate photomasks for fabricating the transition traces and shielding component 31, thereby reducing the number of photomasks used and lowering production costs.

[0061] Optionally, a light-emitting layer is disposed on the anode, and a cathode layer is disposed on the light-emitting layer. The cathode layer is electrically connected to a second trace 21, which serves as a cathode power supply line.

[0062] Please see Figure 3 Optionally, the first trace 11 extends along the first direction D1. Multiple first traces 11 are arranged at intervals along the second direction D2. The first direction D1 intersects the second direction D2.

[0063] The second route 21 extends along the second direction D2.

[0064] The shielding component 31 is arranged to overlap with the first trace 11 and the second trace 21 respectively.

[0065] In this embodiment, the second trace 21, serving as the cathode voltage line, is typically arranged around the display area, while the first trace 11, serving as the power line, typically extends from the display area to the non-display area NA. Therefore, the first trace 11 and the second trace 21 overlap in the non-display area NA due to their different routing directions. Specifically, the first trace 11 extends along a first direction D1, and the second trace 21 extends along a second direction D2. The shielding member 31 in this embodiment can reduce the risk of electrostatic discharge between the first trace 11 and the second trace 21, improving the stability of the internal structure of the display panel 100.

[0066] Optionally, the first direction D1 is perpendicular to the second direction D2. This reduces the overlap area between the first trace 11 and the second trace 21, and also reduces the load on the first trace 11 caused by the shielding component 31, thus ensuring the display effect.

[0067] Please see Figure 3 Optionally, in a plan view of the display panel 100, The shielding element 31 extends along the second direction D2. Multiple shielding elements 31 are arranged at intervals along the first direction D1. Each shielding element 31 is arranged to intersect and overlap with multiple first traces 11.

[0068] In this embodiment, the first trace 11 is a power line, and its width is reduced in the organic light-emitting diode display panel 100. The second trace 21 is a cathode voltage line, and its width is relatively large in the organic light-emitting diode display panel 100. At the intersection of the first trace 11 and the second trace 21, typically one second trace 21 overlaps with multiple first traces 11.

[0069] Because the floating shield 31 forms two capacitors with the first trace 11 and the second trace 21 respectively, the larger the overlapping area of ​​the shield 31 with the first trace 11 and the second trace 21, the greater the capacitance value of the two capacitors formed by the shield 31 with the first trace 11 and the second trace 21 will be, thereby increasing the load of the shield 31 on the first trace 11 and the second trace 21. When the load on the first trace 11 and the second trace 21 increases, the signal delay of the first trace 11 and the second trace 21 will also increase, resulting in a slower signal rise / fall edge and a heavier drive burden.

[0070] Therefore, when the shielding component 31 is arranged to cross the first trace 11, the shielding component 31 only overlaps with the first trace 11 at the intersection, thereby reducing the load of the shielding component 31 on the first trace 11 and reducing the driving burden of the first trace 11.

[0071] Because the second trace 21 is wider, although the extension direction of the second trace 21 is the same as the extension direction of the shield 31, the second trace 21 also has a part that overlaps with the gap 32 between two adjacent shields 31. Therefore, the multiple shields 31 are arranged at intervals, which can also reduce the load of the shield 31 on the second trace 21, thereby reducing the driving load of the second trace 21.

[0072] In summary, this embodiment can reduce the load of the shielding component 31 on the first trace 11 and the second trace 21, thereby reducing the signal delay of the first trace 11 and the second trace 21, making the signal propagation in the first trace 11 and the second trace 21 faster, accelerating the response speed, and improving the display effect.

[0073] Please see Figure 3 Optionally, the non-display area NA includes a central area NA1 and an edge area NA2 surrounding the central area NA1.

[0074] The first routing line 11 and the second routing line 21 are located in the middle region NA1 and the edge region NA2.

[0075] The shielding element 31 is provided at least in the intermediate region NA1 and is located at the intersection between the first trace 11 and the second trace 21.

[0076] In this embodiment, the width of the second trace 21 is greater than the width of the first trace 11, and one second trace 21 intersects with multiple first traces 11. In actual testing, the probability of electrostatic discharge (ESD) occurring in the middle region NA1 at the intersection of the second trace 21 and the first trace 11 is relatively high, while the probability of ESD occurring in the edge region NA2 at the intersection is relatively low. This is because the middle region NA1 at the intersection has the strongest electric field, the most concentrated coupling, and is the easiest region to form a discharge path. Therefore, ESD is more likely to occur in the middle region NA1 than in the edge region NA2. Specifically, the electric field formed by the first trace 11 and the second trace 21 is most concentrated in the middle region NA1, resulting in a stronger local electric field. When the local electric field exceeds the breakdown threshold of the insulating layer, ESD is more likely to occur. However, the electric field distribution in the edge region NA2 at the intersection is more dispersed and easily diffuses into the surrounding space, making it less likely to trigger ESD. Therefore, the shielding element 31 can be placed only in the middle area NA1 to reduce the risk of electrostatic discharge at the intersection of the first trace 11 and the second trace 21, thereby improving the stability of the internal structure of the display panel 100.

[0077] Please see Figure 3 Optionally, at least one end of the shield 31 in the second direction D2 extends to the edge region NA2 and is located at the intersection between the first trace 11 and the second trace 21.

[0078] In this embodiment, in addition to being disposed in the middle region NA1, the shielding member 31 can also extend to the edge region NA2 located in the second direction D2 of the middle region NA1, so as to reduce the risk of electrostatic discharge at the intersection of the first trace 11 and the second trace 21 located in the edge region NA2 located in the second direction D2 of the middle region NA1, and improve the stability of the internal structure of the display panel 100.

[0079] Please see Figure 3 Optionally, a plurality of shielding elements 31 are arranged at intervals along the first direction D1 in the edge region NA2 and located at the intersection between the first trace 11 and the second trace 21.

[0080] In this embodiment, the shielding member 31 can be disposed in the middle region NA1, or it can be disposed in the edge region NA2 located in the first direction D1 of the middle region NA1, so as to reduce the risk of electrostatic discharge at the intersection of the first trace 11 and the second trace 21 located in the edge region NA2 located in the first direction D1 of the middle region NA1, and improve the stability of the internal structure of the display panel 100.

[0081] Please see Figure 4 Optionally, in a plan view of the display panel 100, the width W of the shield 31 gradually increases from both ends of the shield 31 in the second direction D2 toward the center of the shield 31.

[0082] As analyzed in the previous embodiments, the closer to the central region NA1, the greater the risk of electrostatic discharge at the intersection of the first trace 11 and the second trace 21. The farther away from the central region NA1 (the closer to the edge region NA2), the smaller the risk of electrostatic discharge at the intersection of the first trace 11 and the second trace 21. Therefore, the width of both ends of the shielding member 31 can be set smaller than the width of the center of the shielding member 31. On the one hand, since the center of the shielding member 31 is located in the central region NA1, the center of the shielding member 31 has a larger width, which can further reduce the risk of electrostatic discharge at the intersection of the first trace 11 and the second trace 21 located in the central region NA1. On the other hand, since both ends of the shielding member 31 are located in the edge region NA2, the risk of electrostatic discharge in the edge region NA2 is lower. Therefore, the two ends of the shielding member 31 have a smaller width, thereby reducing the load generated by the two ends of the shielding member 31 on the first trace 11 and the second trace 21 that overlap with it, reducing the delay of the first trace 11 and the second trace 21, reducing the impact of the delay on the refresh rate and brightness of the display panel 100, and thus ensuring the display effect.

[0083] In this embodiment, the shield 31 adopts a linewidth gradient design, which achieves a design with small width at both ends and large width in the middle, so that the electric field intensity can be smoothly transitioned and not concentrated at a single point.

[0084] Please see Figure 4 Optionally, in a plan view of the display panel 100, a gap 32 is formed between two adjacent shielding members 31.

[0085] From the edge region NA2 toward the center region, the width L of the gap 32 in the first direction D1 gradually decreases.

[0086] As analyzed in the previous embodiments, the closer to the central region NA1, the greater the risk of electrostatic discharge at the intersection of the first trace 11 and the second trace 21. Conversely, the farther away from the central region NA1 (the closer to the edge region NA2), the smaller the risk of electrostatic discharge at the intersection of the first trace 11 and the second trace 21. On one hand, the multiple shielding elements 31 located in the central region NA1 can be arranged more densely. In this case, the gap 32 between two adjacent shielding elements 31 in the central region NA1 is relatively small, thereby further reducing the risk of electrostatic discharge at the intersection of the first trace 11 and the second trace 21 in the central region NA1. On the other hand, the multiple shielding elements 31 located in the edge region NA2 can be arranged more sparsely. In this case, the gap 32 between two adjacent shielding elements 31 in the edge region NA2 is relatively large, thereby reducing the load of the shielding elements 31 in the edge region NA2 on the first trace 11 and the second trace 21, reducing the delay between the first trace 11 and the second trace 21, and reducing the impact of the delay on the refresh rate and brightness of the display panel 100, thus ensuring the display effect.

[0087] In this embodiment, the shielding element 31 features a sparse, hollow design, which prevents the formation of large capacitors, avoids overheating, and prevents cascading failure. The multiple shielding elements 31 located in the middle region NA1 are more densely packed, effectively suppressing the strong point impact formed at the intersection of the first trace 11 and the second trace 21 in the middle region NA1, preventing damage. The multiple shielding elements 31 located in the edge region NA2 are more sparsely spaced, reducing the load on the first trace 11 and the second trace 21 in the edge region NA2, minimizing the impact of latency on the refresh rate and brightness of the display panel 100, thereby ensuring display quality.

[0088] In the second embodiment of this application: Please see Figure 5 The second embodiment of this application proposes a display panel 100, including a substrate 51, a first metal layer 10, a second metal layer 20 and a fourth metal layer 40.

[0089] The first metal layer 10 is disposed on one side of the substrate 51 and includes a plurality of spaced first traces 11.

[0090] The second metal layer 20 is disposed on one side of the substrate 51 and is disposed separately from the first metal layer 10. The second metal layer 20 includes a second trace 21. Please refer to [link to relevant documentation]. Figure 6 In the plan view of the display panel 100, multiple first traces 11 intersect and overlap with one second trace 21.

[0091] Please see Figure 5The fourth metal layer 40 is disposed on one side of the substrate 51 and is disposed separately from the first metal layer 10 and the second metal layer 20. The fourth metal layer 40 includes multiple third traces 41.

[0092] The second trace 21 is insulated from the third trace 41. The first trace 11 is electrically connected to at least one of the third traces 41. The third trace 41 is located at least at the intersection of the first trace 11 and the second trace 21.

[0093] In the second embodiment of this application, a third trace 41 is provided at the intersection of the first trace 11 and the second trace 21, and the third trace 41 is electrically connected to the first trace 11. Since the third trace 41 is connected in parallel with the first trace 11, the current-carrying cross-sectional area of ​​the current reaching the intersection of the first trace 11 and the second trace 21 through the first trace 11 is increased, which reduces the current density in the first trace 11 and the third trace 41, thereby reducing the risk of electrostatic discharge at the intersection of the first trace 11 and the second trace 21 and improving the stability of the internal structure of the display panel 100.

[0094] Please see Figure 7 Optionally, the display panel 100 includes a display area and a non-display area NA located to one side of the display area. The first trace 11, the second trace 21, and the third trace 41 are located in the non-display area NA. In a plan view of the display panel 100, The first routing line 11 extends along the first direction D1. Multiple first routing lines 11 are arranged at intervals along the second direction D2. The first direction D1 and the second direction D2 intersect.

[0095] The second route 21 extends along the second direction D2.

[0096] Please see Figure 7 The third routing line 41 extends along the first direction D1. The first routing line 11 overlaps with the third routing line 41.

[0097] In this embodiment, since the third trace 41 is connected in parallel with the first trace 11, when the first trace 11 and the third trace 41 overlap, the length of the portion with increased current-carrying cross-sectional area at the intersection of the first trace 11 and the second trace 21 can be further increased, thereby further reducing the risk of electrostatic discharge at the intersection of the first trace 11 and the second trace 21 and improving the stability of the internal structure of the display panel 100.

[0098] Optionally, the fourth metal layer 40 is located between the substrate 51 and the first metal layer 10.

[0099] In this embodiment, since the fourth metal layer 40 is disposed on the side of the first metal layer 10 away from the second metal layer 20, the risk of electrostatic discharge between the fourth metal layer 40 and the second metal layer 20 can be reduced, thereby improving the stability of the internal structure of the display panel 100.

[0100] Please see Figure 5 Optionally, the fourth metal layer 40 is located between the first metal layer 10 and the second metal layer 20.

[0101] In this embodiment, the fourth metal layer 40 can also be disposed between the first metal layer 10 and the second metal layer 20. Although the distance between the fourth metal layer 40 and the second metal layer 20 is relatively close, since the third trace 41 is connected in parallel with the first trace 11, the current-carrying cross-sectional area of ​​the first trace 11 and the third trace 41 is increased, which reduces the current density in the first trace 11 and the third trace 41, thereby reducing the risk of electrostatic discharge at the overlap of the first trace 11 and the second trace 21 and improving the stability of the internal structure of the display panel 100.

[0102] Optionally, the display panel 100 may also include a first insulating layer 52, a second insulating layer 53, a data line, an adapter trace, and an anode.

[0103] The first insulating layer 52 is disposed between the first metal layer 10 and the fourth metal layer 40.

[0104] The second insulating layer 53 is disposed between the fourth metal layer 40 and the second metal layer 20.

[0105] The data cable is located in the display area. The data cable is on the same layer as the first trace 11. The first insulating layer 52 covers the data cable.

[0106] The adapter cable is located in the display area. The adapter cable is installed on the same layer as the third cable 41.

[0107] The anode is located in the display area. The anode is installed on the same layer as the second wiring 21. The anode is electrically connected to the transfer wiring.

[0108] In this embodiment, during the fabrication of the first metal layer 10, the data lines of the display area and the first traces 11 of the non-display area NA can be fabricated simultaneously using the same photomask, reducing the additional photomasks used to fabricate the data lines and the first traces 11 separately, reducing the number of photomasks used, and lowering production costs.

[0109] During the fabrication of the second metal layer 20, the anode of the display area and the second trace 21 of the non-display area NA can be fabricated simultaneously using the same photomask, reducing the additional photomask used to fabricate the anode and the second trace 21 separately, reducing the number of photomasks used, and lowering production costs.

[0110] During the fabrication of the fourth metal layer 40, the transition traces of the display area and the third traces 41 of the non-display area NA can be fabricated simultaneously using the same photomask. This reduces the additional photomasks required to fabricate the transition traces and the third traces 41 separately, thereby reducing the number of photomasks used and lowering production costs.

[0111] Please see Figure 5 Optionally, the width of the third trace 41 in the second direction D2 is less than or equal to the width of the first trace 11 in the second direction D2.

[0112] In this embodiment, since the third trace 41 is located between the first trace 11 and the second trace 21, the width of the third trace 41 can be reduced to decrease the risk of electrostatic discharge between the third trace 41 and the second trace 21, thereby improving the stability of the internal structure of the display panel 100.

[0113] It should be understood that the technical solutions of the first and second embodiments can be combined and substituted for each other. For example, when a shielding member 31 is provided at the intersection of the first trace 11 and the second trace 21 based on the first embodiment, a third trace 41 can be connected in parallel at the first trace 11. That is, the shielding member 31 solution of the first embodiment and the third trace 41 solution of the second embodiment can be set in one solution at the same time, or they can be set separately, and this is not limited here.

[0114] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0115] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0116] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0117] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A display panel, characterized in that, include: Substrate; A first metal layer is disposed on one side of the substrate and includes a plurality of spaced first traces; A second metal layer is disposed on one side of the substrate and is disposed in a different layer from the first metal layer. The second metal layer includes a second trace. In a plan view of the display panel, multiple first traces and one second trace intersect and overlap. as well as A third metal layer is located between the first metal layer and the second metal layer. The third metal layer includes a plurality of shielding elements, which are respectively insulated from the first metal layer and the second metal layer. The shielding elements are located at least at the intersection between the first trace and the second trace.

2. The display panel as described in claim 1, characterized in that, The display panel includes a display area and a non-display area located on one side of the display area. A portion of the first trace, the second trace, and the shielding member are located in the non-display area. In a plan view of the display panel, The first trace extends along a first direction, and multiple first traces are arranged at intervals along a second direction, with the first direction intersecting the second direction; The second trace extends along the second direction; The shielding components are respectively overlapped with the first trace and the second trace.

3. The display panel as described in claim 2, characterized in that, In the plan view of the display panel, The shielding component extends along the second direction, and multiple shielding components are arranged at intervals along the first direction, with each shielding component intersecting and overlapping with multiple first traces.

4. The display panel as described in claim 3, characterized in that, The non-display area includes a central area and an edge area surrounding the central area; The first trace and the second trace are located in the middle region and the edge region, respectively; The shielding element is at least located in the intermediate region and at the intersection between the first trace and the second trace.

5. The display panel as described in claim 4, characterized in that, The shielding member extends at least one end in the second direction to the edge region and is located at the intersection between the first trace and the second trace.

6. The display panel as described in claim 4, characterized in that, Multiple shielding elements are spaced apart along the first direction in the edge region and located at the intersection between the first trace and the second trace.

7. The display panel as described in claim 4, characterized in that, In a plan view of the display panel, the width of the shielding member gradually increases from both ends in the second direction toward the center of the shielding member.

8. The display panel as described in claim 4, characterized in that, In a plan view of the display panel, a gap is formed between two adjacent shielding members; The width of the gap gradually decreases in the first direction from the edge region toward the center region.

9. The display panel as described in any one of claims 1-8, characterized in that, The shielding element is made of metal and is configured to be electrically floated or grounded.

10. The display panel as described in any one of claims 2-8, characterized in that, The display panel also includes: A first insulating layer is disposed between the first metal layer and the third metal layer; A second insulating layer is disposed between the third metal layer and the second metal layer; A data cable is provided in the display area, the data cable is disposed on the same layer as the first trace, and the first insulating layer covers the data cable; and The anode is located in the display area and is disposed on the same layer as the second trace.

11. A display panel, characterized in that, include: Substrate; A first metal layer is disposed on one side of the substrate and includes a plurality of spaced first traces; A second metal layer is disposed on one side of the substrate and is disposed in a different layer from the first metal layer. The second metal layer includes a second trace. In a plan view of the display panel, multiple first traces and one second trace intersect and overlap. as well as A fourth metal layer is disposed on one side of the substrate and is disposed separately from the first metal layer and the second metal layer. The fourth metal layer includes multiple third traces. The second trace is insulated from the third trace, the first trace is electrically connected to at least one of the third traces, and the third trace is located at least at the intersection of the first trace and the second trace.

12. The display panel as claimed in claim 11, characterized in that, The display panel includes a display area and a non-display area located on one side of the display area. The first trace, the second trace, and the third trace are located in the non-display area. In a plan view of the display panel, The first trace extends along a first direction, and multiple first traces are arranged at intervals along a second direction, with the first direction intersecting the second direction; The second trace extends along the second direction; The third trace extends along the first direction, and the first trace overlaps with the third trace.

13. The display panel as claimed in claim 12, characterized in that, The width of the third trace in the second direction is less than or equal to the width of the first trace in the second direction.

14. The display panel as claimed in claim 12, characterized in that, The fourth metal layer is located between the first metal layer and the second metal layer; Alternatively, the fourth metal layer may be located between the substrate and the first metal layer.

15. The display panel as claimed in claim 14, characterized in that, The fourth metal layer is located between the first metal layer and the second metal layer; The display panel also includes: A first insulating layer is disposed between the first metal layer and the fourth metal layer; A second insulating layer is disposed between the fourth metal layer and the second metal layer; A data cable is provided in the display area, the data cable is disposed on the same layer as the first trace, and the first insulating layer covers the data cable; A transition cable is provided in the display area, and the transition cable is disposed on the same layer as the third cable; and An anode is located in the display area, and is disposed on the same layer as the second trace. The anode is electrically connected to the adapter trace.

16. A display device, characterized in that, Includes the display panel as described in any one of claims 1-15.

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