Display panel, display device and splicing display device

Abstract

The embodiment of the invention provides a display panel, a display device and a tiled display device, relates to the technical field of display, and aims to improve the electrostatic protection capability of the display panel. The display panel comprises: a substrate; the electrostatic protection layer is positioned on one side of the substrate; the first structure is at least located on the side, away from the electrostatic protection layer, of the substrate; wherein the electrostatic protection layer is connected with the first structure through the electrostatic conduction layer, and the electrostatic conduction layer is at least located on the side face of the substrate.

Description

Technical Field

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

[0002] Current display panels typically utilize electrostatic discharge (ESD) protection via an internal anti-static ring on the substrate. However, relying solely on the substrate's own anti-ESD design results in a very limited ESD protection capability for the display panel.

[0003] Therefore, how to further optimize the anti-static capability of display panels is a technical problem that urgently needs to be solved. Summary of the Invention

[0004] This invention provides a display panel, a display device, and a splicing display device to improve the electrostatic protection capability of the display panel.

[0005] In a first aspect, embodiments of the present invention provide a display panel, comprising: substrate; An electrostatic protective layer is located on one side of the substrate; The first structure is located at least on the side of the substrate away from the electrostatic protection layer; The electrostatic protective layer is connected to the first structure through an electrostatic conductive layer, and the electrostatic conductive layer is located at least on the side of the substrate.

[0006] Secondly, based on the same inventive concept, embodiments of the present invention also provide a display device, including the aforementioned display panel.

[0007] Thirdly, based on the same inventive concept, the present invention also provides a splicing display device, including at least two of the above-mentioned display panels; The display panel has a splicing side, which is the side where the display panel is spliced ​​with adjacent display panels. At least some of the display panels also include a non-sponge-out side, where the display panel is not spliced ​​with other display panels on the non-sponge-out side. Wherein, for at least a portion of the display panels, the electrostatic conductive layer in the display panel is at least located on the splicing side of the display panel, and / or, for at least a portion of the display panels, the electrostatic conductive layer in the display panel is at least located on the non-splicing side of the display panel.

[0008] The technical solutions provided in the embodiments of the present invention have the following beneficial effects: In the technical solution provided by the embodiments of the present invention, the electrostatic protective layer, the electrostatic conductive layer and the first structure form an electrostatic discharge path, providing a good anti-static environment for the display panel: for the static charge generated on the surface of the display panel, this part of the static charge can be conducted through the electrostatic protective layer to the electrostatic conductive layer, and then to the first structure, and released on the back side of the substrate; for the static charge generated on the side of the display panel, this part of the static charge can be conducted through the electrostatic conductive layer to the first structure, and released on the back side of the substrate.

[0009] Furthermore, based on the above-mentioned electrostatic discharge path, not only can the surface of the display panel be protected to a great extent by using the electrostatic protective layer and the electrostatic conductive layer to prevent the static charge generated on the surface of the display panel from penetrating into the interior of the substrate, but also, when static electricity is transmitted along this path, it only flows from the side of the substrate to the back side through the electrostatic conductive layer, and the static electricity is not transmitted from the interior of the substrate. Therefore, during its release process, it can also avoid affecting the devices and traces inside the substrate.

[0010] Compared to related technologies that rely solely on the electrostatic rings on the substrate itself for electrostatic protection, the technical solution provided by this invention can give the display panel stronger electrostatic protection capabilities, thereby avoiding the impact of static electricity on the display to a greater extent. Attached Figure Description

[0011] 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.

[0012] Figure 1 This is a cross-sectional structural diagram of a display panel provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of a display panel provided in an embodiment of the present invention; Figure 3 for Figure 2 A corresponding partial structural diagram; Figure 4 for Figure 2 A corresponding schematic diagram of another part of the structure; Figure 5 This is a schematic diagram of another structure of the display panel provided in an embodiment of the present invention; Figure 6 for Figure 5 A sectional view along the A1-A2 direction; Figure 7This is a schematic diagram of a region division of a display panel provided in an embodiment of the present invention; Figure 8 for Figure 7 A schematic diagram of a wiring distribution in one of the wiring areas; Figure 9 This is a schematic diagram illustrating another area division of the display panel as used in an embodiment of the present invention; Figure 10 This is a schematic diagram illustrating another area division of the display panel as used in an embodiment of the present invention; Figure 11 This is a schematic diagram of another structure of the display panel provided in an embodiment of the present invention; Figure 12 This is a schematic diagram of another structure of the display panel provided in an embodiment of the present invention; Figure 13 for Figure 12 A sectional view along the B1-B2 direction; Figure 14 This is a schematic diagram of another structure of the display panel provided in an embodiment of the present invention; Figure 15 This is a schematic cross-sectional view of another display panel provided in an embodiment of the present invention; Figure 16 This is a schematic diagram of another cross-sectional structure of the display panel provided in an embodiment of the present invention; Figure 17 This is a schematic diagram of another structure of the display panel provided in an embodiment of the present invention; Figure 18 This is a schematic diagram of another structure of the display panel provided in an embodiment of the present invention; Figure 19 This is a schematic diagram of a wiring distribution on the back side of a substrate provided in an embodiment of the present invention; Figure 20 This is a schematic diagram of another structure of the display panel provided in an embodiment of the present invention; Figure 21 This is a schematic cross-sectional view of another display panel provided in an embodiment of the present invention; Figure 22 This is a schematic cross-sectional view of another display panel provided in an embodiment of the present invention; Figure 23 This is a schematic cross-sectional view of another display panel provided in an embodiment of the present invention; Figure 24 This is a schematic cross-sectional view of another display panel provided in an embodiment of the present invention; Figure 25 This is a schematic cross-sectional view of another display panel provided in an embodiment of the present invention; Figure 26This is a schematic cross-sectional view of another display panel provided in an embodiment of the present invention; Figure 27 This is a schematic cross-sectional view of another display panel provided in an embodiment of the present invention; Figure 28 This is a schematic cross-sectional view of another display panel provided in an embodiment of the present invention; Figure 29 This is a schematic cross-sectional view of another display panel provided in an embodiment of the present invention; Figure 30 This is a schematic diagram of another structure of the display panel provided in an embodiment of the present invention; Figure 31 This is a schematic cross-sectional view of another display panel provided in an embodiment of the present invention; Figure 32 This is a schematic cross-sectional view of another display panel provided in an embodiment of the present invention; Figure 33 This is a schematic diagram of a protective layer provided in an embodiment of the present invention; Figure 34 This is a schematic cross-sectional view of another display panel provided in an embodiment of the present invention; Figure 35 This is another schematic diagram of the protective layer provided in an embodiment of the present invention; Figure 36 This is a schematic cross-sectional view of another display panel provided in an embodiment of the present invention; Figure 37 This is another schematic diagram of the protective layer provided in an embodiment of the present invention; Figure 38 This is a schematic diagram of a structure of the electrostatic protective layer and the electrostatic conductive layer provided in an embodiment of the present invention; Figure 39 This is a schematic diagram of another structure of the electrostatic protective layer and the electrostatic conductive layer provided in an embodiment of the present invention; Figure 40 This is a schematic diagram of another structure of the electrostatic protective layer and the electrostatic conductive layer provided in an embodiment of the present invention; Figure 41 This is another structural schematic diagram of the electrostatic protective layer and the electrostatic conductive layer provided in an embodiment of the present invention; Figure 42 This is another structural schematic diagram of the electrostatic protective layer and the electrostatic conductive layer provided in an embodiment of the present invention; Figure 43 This is a schematic cross-sectional view of another display panel provided in an embodiment of the present invention; Figure 44 This is a schematic cross-sectional view of another display panel provided in an embodiment of the present invention; Figure 45 This is a schematic cross-sectional view of another display panel provided in an embodiment of the present invention; Figure 46 This is a schematic diagram of a substrate provided in an embodiment of the present invention; Figure 47 This is a schematic diagram of a display device provided in an embodiment of the present invention; Figure 48 This is a schematic diagram of a splicing display device provided in an embodiment of the present invention; Figure 49 This is another structural schematic diagram of the splicing display device provided in an embodiment of the present invention; Figure 50 This is another structural schematic diagram of the splicing display device provided in an embodiment of the present invention. Detailed Implementation

[0013] To better understand the technical solution of the present invention, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0014] It should be understood that the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0015] 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.

[0016] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0017] This invention provides a display panel that can be a light-emitting diode (LED) display panel, an organic light-emitting diode (OLED) display panel, or other types of display panels, such as a micro LED display panel or a mini LED display panel.

[0018] like Figure 1 As shown,Figure 1 This is a cross-sectional structural diagram of a display panel provided in an embodiment of the present invention. The display panel includes a substrate 1, an electrostatic protection layer 2, and a first structure 3.

[0019] The substrate 1 includes an array substrate and light-emitting diodes (LEDs). The array substrate includes various functional circuits and wiring, and the LEDs can be micro LEDs or mini LEDs.

[0020] An electrostatic discharge (ESD) layer 2 is located on one side of the substrate 1 and has the characteristics of light transmission and electrostatic discharge. Exemplarily, in this embodiment of the invention, the ESD layer 2 has low resistance, or semi-insulating characteristics, which can provide conditions for the flow of static charge. For example, the ESD layer 2 may include metal oxide materials, such as indium tin oxide or zinc oxide, which not only have high transparency but also relatively low surface resistance, effectively conducting static electricity. Alternatively, the ESD layer 2 may also include nanomaterials, such as carbon nanotubes and graphene, which can conduct static electricity away in a short time, effectively preventing the accumulation of static electricity. Furthermore, the ESD layer 2 may also be a composite film layer, for example, including at least two of an anti-fingerprint layer, an anti-glare layer, and an anti-reflective layer. Additionally, the ESD layer 2 may also be treated with Ag-based antistatic liquid or other methods that allow the surface to have a semi-insulating electrostatic discharge effect. Moreover, in one structure, the ESD layer 2 can cover the entire substrate 1, and the ESD layer 2 can be the outermost film layer of the display panel, i.e., the surface where the ESD layer 2 is located is the light-emitting surface of the display panel.

[0021] The first structure 3 is located at least on the side of the substrate 1 away from the electrostatic protection layer 2.

[0022] The electrostatic protective layer 2 is connected to the first structure 3 through the electrostatic conductive layer 4, and the electrostatic conductive layer 4 is located at least on the side of the substrate 1.

[0023] In the display panel provided in the embodiments of the present invention, the electrostatic protection layer 2, the electrostatic conduction layer 4 and the first structure 3 form an electrostatic discharge path, providing a good anti-static environment for the display panel: for static charges generated on the surface of the display panel, these static charges can be conducted through the electrostatic protection layer 2 to the electrostatic conduction layer 4, and then to the first structure 3, and released on the back side of the substrate 1; for static charges generated on the side of the display panel, these static charges can be conducted through the electrostatic conduction layer 4 to the first structure 3, and released on the back side of the substrate 1.

[0024] Furthermore, based on the above-mentioned electrostatic discharge path, not only can the surface of the display panel be protected to a great extent by the electrostatic protection layer 2 and the electrostatic conduction layer 4, preventing the static charge generated on the surface of the display panel from penetrating into the interior of the substrate 1, but also, when static electricity is transmitted along this path, it only flows from the side to the back side of the substrate 1 through the electrostatic conduction layer 4, and the static electricity is not transmitted from the interior of the substrate 1. Therefore, during its release process, it can also avoid affecting the devices and traces inside the substrate.

[0025] Compared to related technologies that rely solely on the electrostatic ring of the substrate 1 itself for electrostatic protection, the technical solution provided by the embodiments of the present invention can give the display panel a stronger electrostatic protection capability, thereby avoiding the impact of static electricity on the display to a greater extent.

[0026] In one feasible implementation, such as Figures 2-6 As shown, Figure 2 This is a schematic diagram of a display panel provided in an embodiment of the present invention. Figure 3 for Figure 2 A corresponding partial structural diagram, Figure 4 for Figure 2 A corresponding schematic diagram of another part of the structure. Figure 5 This is a schematic diagram of another structure of the display panel provided in an embodiment of the present invention. Figure 6 for Figure 5 A cross-sectional view along the A1-A2 direction shows that the substrate 1 includes a substrate 5, a functional trace 6, a first side trace 7, and a fan-out trace 8.

[0027] The functional trace 6 is located on the side of the substrate 5 closest to the electrostatic discharge layer 2. The functional trace 6 is a trace used to implement display functions, and may include various types of traces such as data lines, power lines, reset lines, and clock lines.

[0028] Fan-out trace 8 is located on the side of substrate 5 away from electrostatic discharge layer 2. Fan-out trace 8 is connected to the driving structure and is used to transmit the signals provided by the driving structure to the functional trace 6. The driving structure may include a driving chip, a printed circuit board, a flip-chip film, etc.

[0029] In this embodiment, the functional trace 6 is electrically connected to the fan-out trace 8 via a first side trace 7, and the first side trace 7 is located at least on the side of the substrate 5. In this embodiment, the first side trace 7 can be led out from the front side of the substrate 5, connected to the functional trace 6 on the front side, and then extended from the side side of the substrate 5 to the back side of the substrate 5, where it is connected to the fan-out trace 8.

[0030] The first structure 3 includes a metal part 3-1, which is located on the side of the substrate 5 away from the electrostatic protection layer 2, and the metal part 3-1 is disposed on the same layer as the fan-out trace 8.

[0031] This structure utilizes the metal portion 3-1 on the back side of the substrate 5 to release static electricity. The metal portion 3-1 can be further disposed in the same layer as the fan-out trace 8 on the back side of the substrate 5, that is, the metal portion 3-1 and the fan-out trace 8 are formed using the same patterning process. This can save process steps, and the metal portion 3-1 does not need to occupy additional film thickness on the back side of the substrate 1, so it will not affect the overall thickness of the display panel.

[0032] It should be noted that, unlike panel structures where the substrate is bent to place some traces on the sides and back, the substrate 5 in this embodiment of the invention is not bent. The traces on the sides and back of the substrate 5 are formed directly using patterning processes. For example, the first side trace 7, the fan-out trace 8, and the metal portion 3-1 can be formed simultaneously using processes such as photolithography, sputtering deposition, and chemical vapor deposition. In this panel structure, only the traces extend on the sides and back of the substrate 5. Because the film thickness of the traces is very small, the impact on the bezel width and the thickness of the substrate 1 is minimal. Compared to substrate bending, this allows for a narrower bezel or even a bezel-less design in the display panel. Furthermore, since the substrate 5 in this invention does not need to be bent, the range of substrates that can be selected is wider. Flexible substrates such as polyimide or rigid substrates such as glass can be chosen. Furthermore, it should be noted that, as described above, the first side trace 7 and the fan-out trace 8 can be formed simultaneously through processes such as photolithography, sputtering deposition, and chemical vapor deposition. Therefore, the formed first side trace 7 and fan-out trace 8 are connected and do not require additional hole drilling for connection. In other words, the functional trace 6 can be considered as connected to a continuous first lead-out line. The first lead-out line is led out from the front side of the substrate 5 and extends from the side side of the substrate 5 to the back side of the substrate 5. The portion of the first lead-out line located on the front and side sides of the substrate 5 is considered as the first side trace 7 of the present invention, and the portion of the first lead-out line located on the back side of the substrate 5 is considered as the fan-out trace 8 of the present invention.

[0033] In this embodiment of the invention, the front side of the substrate 5 is the side of the substrate 5 facing the electrostatic protection layer 2, and the back side of the substrate 5 is the side of the substrate 5 away from the electrostatic protection layer 2.

[0034] Furthermore, it should be noted that the number, film layer position, and shape of functional traces 6, fan-out traces 8, etc., shown in the accompanying drawings of the embodiments of the present invention are merely illustrative. For example, in an actual structure, functional traces 6 can be located in multiple metal layers and can be arranged in various ways.

[0035] In one feasible implementation, such as Figure 7 and Figure 8 As shown, Figure 7 This is a schematic diagram of a display panel area division provided in an embodiment of the present invention.Figure 8 for Figure 7 A schematic diagram of a wiring distribution in one of the wiring areas 9 is shown. The substrate 5 has at least one wiring area 9 on the side away from the electrostatic discharge layer 2. The wiring area 9 includes a fan-out area 10 and a non-fan-out area 11. The fan-out trace 8 is located in the fan-out area 10.

[0036] The non-fan-out area 11 includes a first non-fan-out area 12, and the metal part 3-1 includes a first metal part 13, which is located in the first non-fan-out area 12.

[0037] Fan-out trace 8 is electrically connected to fan-out pin 14. In a single fan-out region 10, fan-out trace 8 converges as it extends toward fan-out pin 14, thereby reducing the width of at least a portion of the fan-out region 10 in the first direction x along the direction from fan-out trace 8 to fan-out pin 14. Consequently, there are some blank areas on both sides of the fan-out region 10, which are the aforementioned non-fan-out region 11.

[0038] Based on this, embodiments of the present invention may select to design at least a portion of the metal portion 3-1 in the non-fan-out area 11. In this way, this portion of the metal portion 3-1 can not only release static electricity, but also improve the uniformity of the patterning process of the wiring area 9, such as improving the etching uniformity of the wiring area 9, which helps to make the quality of the formed fan-out trace 8 better.

[0039] In one feasible implementation, combined with Figure 2 , Figure 7 and Figure 8 The substrate 5 includes a first edge 15 extending along a first direction x and a second edge 16 extending along a second direction y, the first direction x intersecting the second direction y. At least a portion of the first side trace is electrically connected to a fan-out trace 8 on one side of the first edge 15.

[0040] The first non-fan-out region 12 and the fan-out region 10 are arranged along the first direction x, and the first non-fan-out region 12 is adjacent to the second edge 16.

[0041] That is, the first metal part 13 is adjacent to the second edge 16. In this way, the electrostatic conductive layer 4 can be directly connected to the first metal part 13 at the second edge 16. Firstly, the connection is more convenient, and secondly, the electrostatic conductive layer 4 does not need to extend a large distance on the back side of the substrate, which shortens the electrostatic discharge path and allows the electrostatic charge to be transmitted to the first metal part 13 more quickly and conducted away through the first metal part 13.

[0042] In this embodiment of the invention, the non-fan-out region 11 may include two first non-fan-out regions 12, which are respectively arranged adjacent to two second edges 16, thereby enabling the electrostatic conductive layer 4 to be connected to the first metal part 13 on both sides of the substrate 5, and the electrostatic discharge is faster.

[0043] Furthermore, see again Figure 7 and Figure 8 The wiring area 9 includes a first wiring area 9-1, which includes at least two fan-out areas 10 arranged along a first direction x. In the first wiring area 9-1, the non-fan-out area 11 also includes at least one second non-fan-out area 17, which is located between adjacent fan-out areas 10.

[0044] To further improve the uniformity of the patterning process in the wiring area 9, a dummy metal 18 may be provided in the second non-fan-out area 17.

[0045] In one feasible implementation, see again Figure 8 The first metal part 13 includes multiple first traces 19, which are electrically connected to second traces 20, and the second traces 20 are connected to the first pin 23.

[0046] The fan-out trace 8 has a linear structure. By also designing the first metal part 13 as a linear structure, the first metal part 13 and the fan-out trace 8 have similar shapes, and the first metal part 13 will have a better effect on improving the uniformity of the patterning process in the wiring area 9.

[0047] The first metal part 13 is connected to the first pin 23. The static electricity on the static discharge path where the electrostatic protection layer 2 is located will eventually be conducted to the drive structure bound to it through the first pin 23, and then carried away through the drive structure.

[0048] Furthermore, see again Figure 8 The second trace 20 extends from between the first trace 19 and the fan-out trace 8 to be electrically connected to the first pin 23. This allows the first pin 23 to be positioned closer to the fan-out pin 14, making the overall pin arrangement more compact and facilitating the bonding of the pins with the drive structure.

[0049] It should be noted that the number of wiring areas 9 in this embodiment of the invention is not specifically limited. For example, see [link to example]. Figure 7 and Figure 9 , Figure 9 This is a schematic diagram illustrating another area division of the display panel according to an embodiment of the present invention. The back side of the substrate 5 may have two wiring areas 9. Further, see... Figure 7 The distribution of fan-out areas 10 and non-fan-out areas 11 in the two wiring areas 9 can be different, or, see [link to relevant documentation]. Figure 9 The distribution of fan-out areas 10 and non-fan-out areas 11 in the two wiring areas 9 can be the same. Or, as... Figure 10 As shown, Figure 10 This is a schematic diagram of another area division of the display panel according to an embodiment of the present invention. The back side of the substrate 5 may also have only one wiring area 9.

[0050] In one feasible implementation, such as Figures 11-13 As shown, Figure 11 This is a schematic diagram of another structure of the display panel provided in an embodiment of the present invention. Figure 12 This is a schematic diagram of another structure of the display panel provided in an embodiment of the present invention. Figure 13 for Figure 12 A cross-sectional view along the B1-B2 direction shows that the substrate 5 includes a first edge 15 extending along a first direction x and a second edge 16 extending along a second direction y, the first direction x intersecting the second direction y. At least a portion of the first side trace 7 is electrically connected to a fan-out trace 8 on one side of the first edge 15.

[0051] The side of the substrate 5 away from the electrostatic shielding layer 2 has a fan-out region 10, and the fan-out trace 8 is located in the fan-out region 10.

[0052] The metal part 3-1 includes a second metal part 24, which is adjacent to the second edge 16 and is not arranged with the fan-out area 10 along the first direction x.

[0053] For example, the second metal portion 24 may be located in an area outside the wiring area 9 and arranged along the second edge 16. For example, combined with Figure 7 As shown, the wiring area 9 is positioned such that the substrate 5 has wiring areas 9 on one side of each of the two first edges 15, and the second metal portion 24 can be located between the two wiring areas 9 and arranged along the two second edges 16 at the positions of the two second edges 16. Alternatively, in combination with... Figure 10 The wiring area 9 is shown in the diagram. The substrate 5 has a wiring area 9 on only one side of a first edge 15. The second metal part 24 can be located on the side of the wiring area 9 facing the opposite first edge 15, and is arranged along the two second edges 16 at the positions of the two second edges 16 respectively. By setting some second metal parts 24 in areas outside the wiring area 9, the static electricity in the static conduction layer 4 can be dispersed and conducted to the first metal part 13 and the second metal part 24, increasing the static electricity release path and improving the release rate.

[0054] In one feasible implementation, such as Figure 14 and Figure 15 As shown, Figure 14 This is a schematic diagram of another structure of the display panel provided in an embodiment of the present invention. Figure 15 This is a schematic diagram of another cross-sectional structure of the display panel provided in an embodiment of the present invention. The substrate 5 includes a first edge 15.

[0055] The substrate 1 also includes a connection portion 25, which is located on the side of the substrate 5 near the electrostatic shielding layer 2 and adjacent to the first edge 15. The functional trace 6 is electrically connected to the connection portion 25, and at least a portion of the first side trace 7 is led out from the connection portion 25 and extends from the side where the first edge 15 is located to be electrically connected to the metal portion 3-1.

[0056] As mentioned earlier, the functional trace 6 can be located in different metal layers. After the connection part 25 is provided, regardless of which metal layer the functional trace 6 is located in, it is connected to the connection part 25 near the first edge 15, and then the first side trace 7 is led out from the connection part 25. This allows the led-out first side trace 7 to be routed independently, and the metal layer where the first side trace 7 is located is not limited by the metal layer where the functional trace 6 is located, thereby allowing all the first side traces 7 to be formed using the same patterning process.

[0057] It should be noted that, Figure 15 The film positions of the functional traces 6 and the connection portion 25 shown are for illustrative purposes only. In this embodiment of the invention, the metal layer where the connection portion 25 is located is on the side of the metal layer where the functional trace 6 is located away from the substrate 5. However, the functional trace 6 can be located in different metal layers. When the functional trace 6 in different metal layers extends to the vicinity of the first edge 15, the connection portion 25 is led out above it, and then the first side trace 7 is led out above the connection portion 25.

[0058] In one feasible implementation, such as Figure 16 As shown, Figure 16 This is a schematic diagram of another cross-sectional structure of the display panel provided in an embodiment of the present invention. The display panel further includes a second structure 26, which is located at least on the side of the metal part 3-1 away from the electrostatic protection layer 2.

[0059] The electrostatic conductive layer 4 and / or the metal part 3-1 are also connected to the second structure 26 through the first conductive connection structure 27, thereby allowing the electrostatic energy on the electrostatic conductive layer 4 and / or the metal part 3-1 to be further conducted to the second structure 26, so that a portion of the electrostatic energy is conducted away through the second structure 26, thus accelerating the electrostatic release speed.

[0060] In this embodiment of the invention, the first conductive connection structure 27 may include a conductive paste, such as silver paste. The conductive paste has conductive properties and a certain degree of viscosity, and can firmly adhere to the surfaces of the electrostatic conductive layer 4, the metal part 3-1, and the second structure 26, thereby achieving a stable connection.

[0061] In this embodiment of the invention, the first conductive connection structure 27 may be disposed at least partially around the edge of the substrate 1, or it may be disposed only at the location where the metal part 3-1 is disposed, and not at the location where the side trace is disposed, so as to prevent the side trace from being short-circuited.

[0062] In this embodiment of the invention, the second structure 26 may include at least one of a heat dissipation structure, a support structure, a back plate, and a frame.

[0063] For example, see Figure 16 The second structure 26 includes a heat dissipation structure 28 and a support structure 29. The heat dissipation structure 28 may include a heat spreader and / or heat spreader adhesive, such as an aluminum plate, stainless steel plate, or copper plate, and the heat spreader adhesive may be copper glue, etc. These structures have good electrostatic discharge capabilities and can quickly conduct away static electricity. The support structure 29 may include a reinforcing plate or a support module.

[0064] The heat dissipation structure, support structure, back plate and frame are usually the original structures in the display panel. The second structure 26 includes at least one of these structures, which means that the original structure in the display panel is used for electrostatic discharge.

[0065] In one feasible implementation, such as Figure 17 As shown, Figure 17 This is another structural schematic diagram of the display panel provided in an embodiment of the present invention. The substrate 1 includes a substrate 5, an electrostatic ring 30, a second side trace 31, and a first connecting line 32.

[0066] An electrostatic ring 30 is located on the side of the substrate 5 near the electrostatic shielding layer 2 and extends around the edge of the substrate 1. A first connecting line 32 is located on the side of the substrate 5 away from the electrostatic shielding layer 2 and is electrically connected to a second pin 33. The second pin 33 is used to electrically connect to the driving structure and receive signals provided by the driving structure. The electrostatic ring 30 is connected to the first connecting line 32 via a second side trace 31, which is located at least on the side of the substrate 5.

[0067] In this structure, the substrate 1 itself can also be protected against electrostatic discharge using an electrostatic ring 30. Static electricity entering from the side of the substrate is conducted through the electrostatic ring 30 to the second side trace 31, and then to the first connection line 32, and is carried away by the driving structure bound to the second pin 33.

[0068] Furthermore, combined Figures 17-19 , Figure 18 This is a schematic diagram of another structure of the display panel provided in an embodiment of the present invention. Figure 19 This is a schematic diagram of a wiring distribution on the back side of a substrate provided in an embodiment of the present invention. The substrate 1 also includes a functional wiring 6, a first side wiring 7, and a fan-out wiring 8.

[0069] Functional trace 6 is located on the side of substrate 5 close to electrostatic discharge layer 2, and fan-out trace 8 is located on the side of substrate 5 away from electrostatic discharge layer 2. Functional trace 6 is connected to fan-out trace 8 through first side trace 7, and first side trace 7 is located at least on the side of substrate 5.

[0070] The first structure 3 includes a metal part 3-1, which is located on the side of the substrate 5 away from the electrostatic protection layer 2. The metal part 3-1 is disposed on the same layer as the fan-out trace 8. The first connecting line 32 extends from between the metal part 3-1 and the fan-out trace 8 to be electrically connected to the second pin 33.

[0071] In this way, the first connecting line 32 connected to the electrostatic ring 30 will not be spaced between the edge of the metal part 3-1 and the substrate 5, and will not hinder the connection between the metal part 3-1 and the electrostatic protection layer 2.

[0072] Furthermore, see again Figure 18 The metal part 3-1 is electrically connected to the first pin 23, which is used to electrically connect to the drive structure and receive signals provided by the drive structure.

[0073] In this embodiment of the invention, the driving structure can provide the same voltage to the first pin 23 and the second pin 33, or it can provide different voltages.

[0074] In this embodiment of the invention, when the driving structure provides different voltages to the first pin 23 and the second pin 33, the voltage provided by the driving structure to the first pin 23 can be greater than the voltage provided by the driving structure to the second pin 33.

[0075] In the display panel provided in the embodiment of the present invention, the electrostatic discharge path from the electrostatic protection layer 2 to the metal part 3-1 is the main path for electrostatic protection. Therefore, the signal provided by the driving structure to the first pin 23 can be slightly larger to enhance the speed and effect of electrostatic discharge on the main path.

[0076] In one feasible implementation, the first structure 3 is electrically insulated from the electrostatic ring 30.

[0077] Taking the first structure 3, which includes a metal part 3-1, as an example, the structure on the electrostatic discharge path where the metal part 3-1 is located does not contact the structure on the electrostatic discharge path where the electrostatic ring 30 is located, and they are electrically insulated from each other. These two electrostatic discharge paths are two independent paths, which can prevent static electricity from being transmitted to the electrostatic ring 30 when it is transmitted on the electrostatic discharge path where the electrostatic protection layer 2 is located, thus preventing static electricity from entering the substrate. This can reduce the risk of static damage to the wiring and devices inside the substrate 1.

[0078] In one feasible implementation, such as Figure 20 and Figure 21 As shown, Figure 20 This is a schematic diagram of another structure of the display panel provided in an embodiment of the present invention. Figure 21This is a schematic diagram of another cross-sectional structure of the display panel provided in an embodiment of the present invention. The substrate 1 includes a substrate 5, functional traces 6, first side traces 7, and fan-out traces 8.

[0079] Functional trace 6 is located on the side of substrate 5 close to electrostatic discharge layer 2, and fan-out trace 8 is located on the side of substrate 5 away from electrostatic discharge layer 2. Functional trace 6 is electrically connected to fan-out trace 8 through first side trace 7, and first side trace 7 is located at least on the side of substrate 5.

[0080] The first structure 3 includes a first substructure 3-2, which is located on the side of the fan-out trace 8 away from the substrate 5.

[0081] In this structure, the static electricity on the electrostatic conductive layer 4 will eventually be conducted away through the first substructure 3-2. The first substructure 3-2 can be some existing structures in the display panel, such as a heat sink or a reinforcing sheet, so there is no need to form a new structure as the first substructure.

[0082] In one feasible implementation, the first substructure 3-2 includes at least one of a heat dissipation structure, a support structure, and a backplate.

[0083] For example, in an embodiment of the present invention, see... Figure 21 The first substructure 3-2 includes a heat dissipation structure 28, which may include a heat dissipation plate and / or heat dissipation adhesive. The heat dissipation plate may be an aluminum plate, stainless steel plate, or copper plate, etc., and the heat dissipation adhesive may be copper adhesive, etc. These structures have good electrostatic discharge capabilities and can quickly conduct away static electricity.

[0084] The heat dissipation structure, support structure, and back plate are usually the original structures in the display panel. The first substructure 3-2 includes at least one of these structures, which means that the original structure in the display panel is used for electrostatic discharge.

[0085] In one feasible implementation, see again Figure 21 The electrostatic conduction layer 4 is connected to the first substructure 3-2 through the second conductive connection structure 34. In this way, the electrostatic conduction layer 4 does not need to extend too far on the back side of the substrate 5 in order to make contact with the first substructure 3-2, reducing the risk of short circuit between the electrostatic conduction layer 4 and the fan-out trace 8.

[0086] Furthermore, the portion of the second conductive connection structure 34 connected to the electrostatic conductive layer 4 is located on the side of the electrostatic conductive layer 4 away from the substrate 1. In other words, the second conductive connection structure 34 is formed after the electrostatic conductive layer 4 is formed, thereby further reducing the risk of short circuit between the second conductive connection structure 34 and the fan-out trace 8.

[0087] Furthermore, such as Figure 22 As shown,Figure 22 This is a schematic diagram of another cross-sectional structure of the display panel provided in an embodiment of the present invention. The electrostatic conductive layer 4 includes a first portion 35, which is located on the side of the substrate 1.

[0088] A portion of the second conductive connection structure 34 is also located on the side of the first portion 35 away from the substrate 1, thereby forming a connection with it on the side of the electrostatic conductive layer 4 to increase the connection area between the two, thereby increasing the reliability of the electrostatic discharge path and improving the electrostatic conductivity.

[0089] In this embodiment of the invention, when the second conductive connection structure 34 is located on the side of the substrate 1 away from the electrostatic shielding layer 2, the second conductive connection structure 34 can be arranged around the entire edge of the substrate 1. Alternatively, the display panel may include at least two second conductive connection structures 34, which extend in a strip shape along the second direction y. For example, when a first side trace 7 is provided on one side of the first edge 15 of the substrate 5, but no first side trace 7 is provided on one side of the second edge 16, the second conductive connection structure 34 extends along the second edge 16 on one side of the second edge 16. Alternatively, the display panel may also include multiple second conductive connection structures 34 spaced apart from each other, arranged along the edge of the substrate 5.

[0090] When a portion of the second conductive connection structure 34 is located on the side of the first portion 35 away from the substrate 1, the position of the second conductive connection structure 34 can be related to the position of the electrostatic conductive layer 4. For example, when the electrostatic conductive layer 4 is arranged in a complete circle around the substrate 1, the second conductive connection structure 34 can be arranged in a complete circle around the edge of the substrate 1, or it can extend only along the second edge 16 on one side. When the electrostatic conductive layer 4 is arranged only on one side of the second edge 16, the second conductive connection structure 34 can also be arranged only on one side of the second edge 16.

[0091] In one feasible implementation, the second conductive connection structure 34 may include a copper foil, which may be bonded and fixed to the electrostatic conductive layer 4 and the first substructure 3-2.

[0092] Copper foil has good ductility and can undergo plastic deformation without easily breaking when subjected to external force. Therefore, choosing copper foil to connect the electrostatic conduction layer 4 and the first substructure 3-2 can improve the connection reliability of the entire electrostatic discharge path.

[0093] In one feasible implementation, the sheet resistance of the electrostatic protective layer 2 is greater than or equal to 10. 4 ohms / square and less than or equal to 10 9 Ohms per square.

[0094] For materials that can provide antistatic properties, when the sheet resistance of the electrostatic protective layer 2 is within the aforementioned range, the electrostatic protective layer 2 exhibits low resistance characteristics, or in other words, semi-insulating characteristics. The electrostatic protective layer 2 has a smaller obstruction effect on the flow of static charge, resulting in superior static charge release capability. Static charges move and conduct more quickly within the electrostatic protective layer 2, thereby accelerating static charge release.

[0095] In one feasible implementation, the sheet resistance of the electrostatic conductive layer 4 is greater than or equal to 10. 4 ohms / square and less than or equal to 10 9 Ohms per square.

[0096] When the sheet resistance of the electrostatic conductive layer 4 is within the above range, the electrostatic conductive layer 4 also has low resistance characteristics. The electrostatic conductive layer 4 has a small obstruction effect on the flow of static charge, so that static electricity can be conducted to the first structure 3 more quickly and released through the first structure 3.

[0097] In one feasible implementation, the sheet resistance of the electrostatic conductive layer 4 is less than that of the electrostatic protective layer 2. In this case, the electrostatic conductive layer 4 has a smaller obstruction effect on charge flow, and the electrostatic transmission rate on the electrostatic conductive layer 4 is faster, which can further reduce the risk of electrostatics entering the interior of the substrate 1 from the side during the transmission process.

[0098] In one feasible implementation, such as Figure 23 and Figure 24 As shown, Figure 23 This is a schematic cross-sectional view of another display panel provided in an embodiment of the present invention. Figure 24 This is a schematic cross-sectional view of another display panel provided in an embodiment of the present invention. The edge portion of the electrostatic protective layer 2 protrudes from the substrate 1, and the electrostatic conductive layer 4 is connected to at least the protruding portion of the electrostatic protective layer 2 so that the connection between the two is more convenient.

[0099] In one structure, the substrate 1 has a first orthographic projection on the electrostatic protective layer 2, and each edge of the first orthographic projection is spaced from the adjacent edge of the electrostatic protective layer 2. That is, the electrostatic protective layer 2 is expanded outward around the entire substrate 1, so that the electrostatic conductive layer 4 can be easily connected to the protruding part of the electrostatic protective layer 2, whether it is arranged around the substrate 1 or only in a local position.

[0100] The distance between the edge of the first orthographic projection and its adjacent edge in the electrostatic shielding layer 2 can be greater than or equal to the thickness of the electrostatic conductive layer 4, so as to provide sufficient space for the electrostatic shielding layer 2 and ensure that the electrostatic conductive layer 4 is only located within the area covered by the electrostatic shielding layer 2. The thickness of the electrostatic conductive layer 4 can be considered as the thickness of the portion of the electrostatic conductive layer 4 located on the side of the substrate 1 along a direction parallel to the plane of the substrate 1. Furthermore, the distances between the different edges of the first orthographic projection and their adjacent edges in the electrostatic shielding layer 2 can be set to be equal.

[0101] Furthermore, see again Figure 23 and Figure 24 The electrostatic protective layer 2 includes a first surface 36 away from the substrate 1, a second surface 37 close to the substrate 1, and a first side surface 38.

[0102] Along the direction from the first surface 36 to the second surface 37, the first side surface 38 is inclined toward the center of the electrostatic protective layer 2. The electrostatic conductive layer 4 is connected to the first side surface 38.

[0103] When the first side 38 is designed as described above, the electrostatic protective layer 2 can have a large contact area with the electrostatic conductive layer 4 without much expansion of the substrate 1. Firstly, it can reduce the impact of the expansion of the electrostatic protective layer 2 on the overall size of the panel. When the display panel is used in a splicing display device, it can weaken the splicing seam. Secondly, it can increase the connection reliability between the electrostatic protective layer 2 and the electrostatic conductive layer 4.

[0104] In one feasible implementation, see again Figure 23 and Figure 24 The display panel also includes a side filler layer 39, which is located between the electrostatic conductive layer 4 and the substrate 1.

[0105] When the electrostatic protection layer 2 is extended outward and connected to the electrostatic conduction layer 4, there may be gaps between the electrostatic conduction layer 4 and the substrate 1. At this time, the side gap filling layer 39 can be used to fill these gaps and grooves to prevent the electrostatic conduction layer 4 from breaking.

[0106] It should be noted that, in this embodiment of the invention, the side sealant layer 39 may be partially located on the side of the substrate 1 and partially located on the side of the substrate 1 away from the electrostatic discharge layer 2. Alternatively, as... Figure 25 As shown, Figure 25 This is a schematic diagram of another cross-sectional structure of the display panel provided in an embodiment of the present invention. The side filler layer 39 may be located only on the side of the substrate 1.

[0107] In one feasible implementation, such as Figure 26 As shown, Figure 26This is a schematic cross-sectional view of another display panel provided in an embodiment of the present invention. A portion of the electrostatic conductive layer 4 is also located on the side of the electrostatic protective layer 2 away from the substrate 1, so that the electrostatic conductive layer 4 is still in contact with the electrostatic protective layer 2 above it, further increasing the connection area between the electrostatic protective layer 2 and the electrostatic conductive layer 4, and improving the reliability of electrostatic discharge. Here, the surface where the electrostatic protective layer 2 is located is the light-emitting surface of the display panel, and the fact that the electrostatic conductive layer 4 is still in contact with the electrostatic protective layer 2 above it means that a portion of the electrostatic conductive layer 4 is also disposed on the light-emitting surface side of the display panel.

[0108] In this embodiment of the invention, the electrostatic conductive layer 4 may include a sealant material capable of conducting static electricity, so that the electrostatic conductive layer 4 can also serve as a side sealant to prevent water and oxygen from seeping into the substrate 1 from the side.

[0109] In one feasible implementation, combined with Figure 20 ,like Figure 27 and Figure 28 As shown, Figure 27 This is a schematic cross-sectional view of another display panel provided in an embodiment of the present invention. Figure 28 This is a schematic cross-sectional view of another display panel provided in an embodiment of the present invention. The substrate 1 includes a substrate 5, functional traces 6, a first side trace 7, and a fan-out trace 8. The functional traces 6 are located on the side of the substrate 5 closest to the electrostatic discharge layer 2, and the fan-out trace 8 is located on the side of the substrate 5 furthest from the electrostatic discharge layer 2. The functional traces 6 are connected to the fan-out trace 8 through the first side trace 7, and the first side trace 7 is located at least on the side of the substrate 5.

[0110] The display panel also includes a side encapsulation layer 40, which is located at least on the side of the substrate 1 and covers the first side trace 7.

[0111] When a first side trace 7 is provided, a side encapsulation layer 40 is further provided on the outside of the first side trace 7, which can be used to protect the first side trace 7 from scratches, short circuits, etc.

[0112] The side encapsulation layer 40 can be disposed around the substrate 1, and can be disposed at locations where side traces are provided or where side traces are not provided. Alternatively, the side encapsulation layer 40 can be disposed only at locations where side traces are provided.

[0113] Furthermore, the sheet resistance of the side encapsulation layer 40 is greater than 10. 9 Ohms per square.

[0114] When the sheet resistance of the side encapsulation layer 40 is within the above range, the side encapsulation layer 40 has high resistance characteristics, which can shield the interference of static electricity on the electrostatic conduction layer 4 to the traces on the first side trace 7.

[0115] In one feasible implementation, such as Figure 29 As shown, Figure 29 This is a schematic diagram of another cross-sectional structure of the display panel provided in an embodiment of the present invention. The electrostatic protective layer 2 includes at least one of an anti-fingerprint layer (AF) 41, an anti-glare layer (AG) 42, and an anti-reflection layer (AR) 43.

[0116] For example, in this embodiment of the invention, the electrostatic protective layer 2 is an AG+AR+AF film material including an anti-fingerprint layer 41, an anti-glare layer 42 and an anti-reflection layer 43, also known as a 3A film material, so that the electrostatic protective layer 2 has multiple properties such as antistatic, anti-reflection, anti-glare and anti-fingerprint, and the film material has better performance.

[0117] In one feasible implementation, such as Figures 30-32 As shown, Figure 30 This is a schematic diagram of another structure of the display panel provided in an embodiment of the present invention. Figure 31 This is a schematic cross-sectional view of another display panel provided in an embodiment of the present invention. Figure 32 This is a schematic diagram of another cross-sectional structure of the display panel provided in an embodiment of the present invention. The substrate 1 includes a substrate 5 and a fan-out trace 8, which is located on the side of the substrate 5 away from the electrostatic protection layer 2.

[0118] The display panel also includes a protective layer 44, at least a portion of which is located on the side of the fan-out trace 8 away from the electrostatic protection layer 2, to protect the fan-out trace 8 and prevent it from being scratched or short-circuited.

[0119] The substrate 5 has a bonding region 45 on the side away from the electrostatic discharge layer 2. The bonding region 45 includes a fan-out pin 14, a first pin 23, and a second pin 33. The protective layer 44 has a first cutout 46 that exposes the bonding region 45, thereby exposing the pins in the bonding region 45 and facilitating the bonding of the pins with the driving structure.

[0120] It should be noted that, see again Figure 32 When the first structure 3 includes the first substructure 3-2, the first substructure 3-2 can be located on the side of the protective layer 44 away from the substrate 5. At this time, the first substructure 3-2 has a third cutout 47, which exposes the bonding area 45 so that the pins in the bonding area 45 can be bonded to the driving structure.

[0121] In one feasible implementation, combined with Figure 2 ,like Figure 33 and Figure 34 As shown, Figure 33This is a schematic diagram of a structure of the protective layer 44 provided in an embodiment of the present invention. Figure 34 This is a schematic diagram of another cross-sectional structure of the display panel provided in an embodiment of the present invention. The first structure 3 includes a metal part 3-1, which is located on the side of the substrate 5 away from the electrostatic protection layer 2, and the metal part 3-1 is disposed on the same layer as the fan-out trace 8.

[0122] Part of the protective layer 44 is also located on the side of the metal part 3-1 away from the electrostatic protective layer 2, so as to protect the metal part 3-1 from being scratched.

[0123] In one feasible implementation, see Figure 33 and Figure 34 The protective layer 44 also has a second cutout 48, which exposes the area in the metal part 3-1 used for connection with the electrostatic conductive layer 4, thereby exposing part of the metal part 3-1 for easy connection with the electrostatic conductive layer 4.

[0124] Alternatively, in another feasible implementation, such as Figure 35 and Figure 36 As shown, Figure 35 This is a schematic diagram of another structure of the protective layer 44 provided in an embodiment of the present invention. Figure 36 This is another cross-sectional structural diagram of the display panel provided in an embodiment of the present invention. For the portion of the electrostatic conductive layer 4 located on the side of the substrate 1 away from the electrostatic protective layer 2, the protective layer 44 is located on the side of this portion of the electrostatic conductive layer 4 away from the electrostatic protective layer 2. That is, the protective layer 44 is formed after the electrostatic conductive layer 4 is formed. In this way, there is no need to provide a second cutout 48 in the protective layer 44, the protective area of ​​the protective layer 44 is larger, and the connection area that the electrostatic conductive layer 4 and the metal part 3-1 can be set to be larger.

[0125] In this embodiment of the invention, the protective layer 44 can cover the entire substrate, including only some of the smaller cutout areas mentioned above. Or, as... Figure 37 As shown, Figure 37 This is another schematic diagram of the protective layer 44 provided in an embodiment of the present invention. The display panel may include at least two protective layers 44, and a single protective layer 44 is only partially disposed on the back side of the substrate 1.

[0126] In one feasible implementation, to give the protective layer 44 better corrosion resistance, wear resistance and scratch resistance, the protective layer 44 can be formed by screen printing.

[0127] In one feasible implementation, such as Figure 38 and Figure 39 As shown, Figure 38 This is a schematic diagram of a structure of the electrostatic protective layer 2 and the electrostatic conductive layer 4 provided in an embodiment of the present invention. Figure 39This is another structural schematic diagram of the electrostatic protective layer 2 and the electrostatic conductive layer 4 provided in an embodiment of the present invention. The electrostatic conductive layer 4 is at least partially disposed around the edge of the substrate 1.

[0128] Wherein, the electrostatic conductive layer 4 is disposed at least partially around the edge of the substrate 1, including at least the following cases: the electrostatic conductive layer 4 can completely surround the substrate 1, for example, in combination with Figure 7 and Figure 38 The substrate 5 has an electrostatic conductive layer on one side of each of the two first edges 15 and the two second edges 16. Alternatively, the electrostatic conductive layer 4 may be provided only along a portion of the edges of the substrate 1, for example, combined with... Figure 10 and Figure 39 Of the two first edges 15, one of the first edges 15 has a wiring area 9 on one side, while the other first edge 15 does not have a wiring area 9 on one side. The electrostatic conduction layer 4 can be set only on the two second edges 16 and the first edge 15 that does not correspond to the wiring area 9, and not on the first edge 15 that corresponds to the wiring area 9, so as to further avoid the electrostatic discharge process from affecting the first side wiring 7.

[0129] In this structure, the electrostatic conduction layer 4 is continuously arranged and has a large area, so the distribution of static electricity in the electrostatic conduction layer 4 is more dispersed and less likely to accumulate.

[0130] Alternatively, in another feasible implementation, such as Figures 40-41 As shown, Figure 40 This is a schematic diagram of another structure of the electrostatic protective layer 2 and the electrostatic conductive layer 4 provided in an embodiment of the present invention. Figure 41 This is a schematic diagram of another structure of the electrostatic protective layer 2 and the electrostatic conductive layer 4 provided in an embodiment of the present invention. Figure 42 This is another structural schematic diagram of the electrostatic protective layer 2 and electrostatic conductive layer 4 provided in an embodiment of the present invention. The display panel includes at least two electrostatic conductive layers 4 spaced apart from each other, and the at least two electrostatic conductive layers 4 are respectively connected to the first structure 3 ( Figure 40 and Figure 41 (Not shown in the image) Connection.

[0131] In one embodiment, combined with Figure 2 The substrate 5 includes a first edge 15 extending along a first direction x and a second edge 16 extending along a second direction y, and the first side trace 7 is located on the side where the first edge 15 is located.

[0132] The display panel includes at least two electrostatic conductive layers 4, with a portion of the electrostatic conductive layers 4 located on one side of a second edge 16 and the remaining portion of the electrostatic conductive layers 4 located on the other side of a second edge 16. In other words, the electrostatic conductive layers are only located in positions where no side traces are provided, thus avoiding the impact of electrostatic conduction on the side traces.

[0133] Furthermore, it should be noted that when the electrostatic conductive layer 4 is connected to the metal part 3-1, the electrostatic conductive layer 4 needs to be bent from the side of the substrate 5 to the back of the substrate 1 (the side of the substrate 1 away from the electrostatic protective layer 2) and then connected to the metal part 3-1. For this part of the electrostatic conductive layer 4 located on the back of the substrate 1, combined with... Figure 42 This electrostatic conductive layer 4 can extend in a strip shape along the second direction y to facilitate a larger area of ​​contact and connection with the metal part 3-1. Alternatively, it can be combined with... Figure 41 and Figure 4 This electrostatic conductive layer 4 can also be set only at the location of the metal part 3-1, and not set at the location where there is no metal part 3-1.

[0134] In one feasible implementation, such as Figure 43 and Figure 44 As shown, Figure 43 This is a schematic cross-sectional view of another display panel provided in an embodiment of the present invention. Figure 44 This is a schematic cross-sectional view of another display panel provided in an embodiment of the present invention. The display panel further includes a light-shielding layer 49, which is located between the electrostatic protection layer 2 and the substrate 1; and / or, the display panel further includes an ink layer 50, which is located between the electrostatic protection layer 2 and the substrate 1.

[0135] The electrostatic protective layer 2, the light-shielding layer 49, and the ink layer 50 can constitute an encapsulation structure. The light-shielding layer 49 serves to block light and can be a black matrix. The ink layer 50 can include black ink material to block areas where light transmission is not desired; alternatively, the ink layer 50 can also include translucent ink material to reduce light scattering and reflection.

[0136] In one feasible implementation, such as Figure 45 As shown, Figure 45 This is a schematic cross-sectional view of another display panel provided in an embodiment of the present invention. The display panel further includes a display area 51 and a shift register 52, with at least a portion of the shift register 52 located in the display area 51.

[0137] With this configuration, the shift register 52 occupies almost no border space, enabling the display panel to achieve an ultra-narrow bezel or borderless design.

[0138] In other words, with this design, a portion of the bezel space freed up by the shift register 52 can be used to accommodate the electrostatic ring 30 and the electrostatic conductive layer 4. For example, the electrostatic ring 30 can be located between the shift register 52 and the outer edge of the substrate 1, or more specifically, between the display area 51 and the outer edge of the substrate 1. While ensuring the display panel bezel remains relatively narrow, more turns of the electrostatic ring 30 can be provided to give the substrate 1 itself better anti-static capability. Alternatively, the electrostatic conductive layer 4 on the side of the substrate 1 can be designed to be thicker to further accelerate the release of static electricity.

[0139] In addition, it should be noted that Figure 44 This is merely a simplified illustration showing that at least a portion of the shift register 52 is located in the display area 51, and does not imply a specific limitation on the location of the shift register 52. In one configuration, the shift register 52 includes multiple cascaded shift units, which can be positioned between adjacent rows of pixel circuits to optimize the arrangement between the shift register 52 and the pixel circuits.

[0140] In one feasible implementation, such as Figure 46 As shown, Figure 46 This is a schematic diagram of a substrate 1 provided in an embodiment of the present invention. The substrate 1 includes an array substrate 53 and a light-emitting diode 54 located on one side of the array substrate 53. The light-emitting diode 54 can be a mini LED, micro LED, etc.

[0141] The array substrate 53 may include the aforementioned substrate 5, functional traces 6, first side traces 7, fan-out traces 8, electrostatic rings 30, second side traces 31, first connecting lines 32, and other structures. In addition, the array substrate 53 may also include various functional circuits such as pixel circuits and shift registers 52.

[0142] Based on the same inventive concept, embodiments of the present invention also provide a display device, such as... Figure 47 As shown, Figure 47 This is a schematic diagram of a display device provided in an embodiment of the present invention, the display device including the aforementioned display panel 100. Of course, Figure 47 The display device shown is for illustrative purposes only. The display device can be any electronic device with display function, such as a mobile phone, tablet computer, laptop computer, e-reader or television.

[0143] Based on the same inventive concept, embodiments of the present invention also provide a splicing display device, such as... Figures 48-50 As shown, Figure 48 This is a schematic diagram of a splicing display device provided in an embodiment of the present invention. Figure 49 This is another structural schematic diagram of the splicing display device provided in an embodiment of the present invention.Figure 50 This is another structural schematic diagram of the splicing display device provided in an embodiment of the present invention. The splicing display device includes at least two of the above-mentioned display panels 100.

[0144] The display panel 100 has a splicing side, which is the side where the display panel 100 is spliced ​​with adjacent display panels 100. At least some display panels 100 also include a non-sponge-out side, where the display panel 100 is not spliced ​​with other display panels.

[0145] Wherein, for at least a portion of the display panel 100, the electrostatic conductive layer 4 in the display panel 100 is located at least on the splicing side of the display panel 100, and / or, for at least a portion of the display panel 100, the electrostatic conductive layer 4 in the display panel is located at least on the non-splicing side of the display panel 100.

[0146] This type of splicing display device can be used to create large video walls and can be applied in public information display (PID) scenarios such as train stations and airports. When the splicing display device includes the aforementioned display panel 100, it can effectively improve the device's anti-static capability, thereby enhancing the display effect of the splicing display device.

[0147] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0148] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not 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. Such 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, include: substrate; An electrostatic protective layer is located on one side of the substrate; The first structure is located at least on the side of the substrate away from the electrostatic protection layer; The electrostatic protective layer is connected to the first structure through an electrostatic conductive layer, and the electrostatic conductive layer is located at least on the side of the substrate; The substrate includes a substrate and a first side trace, the first side trace being located at least on the side of the substrate; wherein the electrostatic conductive layer is located on the side of the first side trace away from the substrate.

2. The display panel according to claim 1, characterized in that, include A side encapsulation layer, wherein the side encapsulation layer is located at least on the side of the substrate, and the side encapsulation layer is located between the electrostatic conductive layer and the first side trace.

3. The display panel according to claim 2, characterized in that, The side encapsulation layer covers the first side trace, and / or the side encapsulation layer surrounds the substrate.

4. The display panel according to claim 2, characterized in that, include A side sealant layer, wherein the side sealant layer is located between the electrostatic conductive layer and the side encapsulation layer.

5. The display panel according to claim 2, characterized in that, The sheet resistance of the side encapsulation layer is greater than the sheet resistance of the electrostatic conduction layer.

6. The display panel according to claim 1, characterized in that, The sheet resistance of the electrostatic conductive layer is less than that of the electrostatic protective layer.

7. The display panel according to claim 1, characterized in that, The sheet resistance of the electrostatic protective layer is greater than or equal to 10. 4 ohms / square and less than or equal to 10 9 Ohms per square.

8. The display panel according to claim 1, characterized in that, The sheet resistance of the electrostatic conductive layer is greater than or equal to 10. 4 ohms / square and less than or equal to 10 9 Ohms per square.

9. The display panel according to claim 2, characterized in that, The sheet resistance of the side encapsulation layer is greater than 10. 9 Ohms per square.

10. The display panel according to claim 1, characterized in that, The electrostatic protective layer includes at least one of an anti-fingerprint layer, an anti-glare layer, and an anti-reflective layer.

11. The display panel according to claim 1, characterized in that, The substrate includes a substrate and fan-out traces, wherein the fan-out traces are located on the side of the substrate away from the electrostatic shielding layer; The display panel further includes a protective layer, at least a portion of which is located on the side of the fan-out trace away from the electrostatic protection layer; The substrate has a bonding area on the side away from the electrostatic protection layer, and the protection layer has a first cutout that exposes the bonding area.

12. The display panel according to claim 11, characterized in that, The first structure includes a metal portion located on the side of the substrate away from the electrostatic shielding layer. A portion of the protective layer is also located on the side of the metal part away from the electrostatic protection layer; The protective layer also has a second cutout, which exposes the area in the metal portion for connection with the electrostatic conductive layer.

13. The display panel according to claim 12, characterized in that, The metal part is disposed on the same layer as the fan-out wiring.

14. The display panel according to claim 1, characterized in that, The electrostatic conductive layer is disposed at least partially around the edge of the substrate.

15. The display panel according to claim 1, characterized in that, The display panel includes at least two electrostatic conductive layers spaced apart from each other, and the at least two electrostatic conductive layers are respectively connected to the first structure.

16. The display panel according to claim 1, characterized in that, The display panel further includes a light-shielding layer, which is located between the electrostatic protection layer and the substrate. And / or, the display panel further includes an ink layer located between the electrostatic protection layer and the substrate.

17. The display panel according to claim 1, characterized in that, The substrate includes a substrate, functional traces, and fan-out traces; The functional trace is located on the side of the substrate closer to the electrostatic discharge layer, and the fan-out trace is located on the side of the substrate away from the electrostatic discharge layer. The functional trace is connected to the fan-out trace through the first side trace.

18. A display device, characterized in that, Includes the display panel as described in any one of claims 1 to 17.

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