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] The present invention relates to the field of display technology, and in particular to a display panel, a display device, and a spliced ​​display device. Background Art

[0002] Existing display panels usually use an electrostatic ring set inside the substrate for electrostatic protection. However, if the anti-static design of the substrate itself is relied on alone, the anti-static ability of the display panel will be very limited.

[0003] Therefore, how to further optimize the antistatic capability of the display panel is a technical problem that needs to be solved urgently. Summary of the invention

[0004] Embodiments of the present invention provide a display panel, a display device, and a spliced ​​display device, which are used to improve the electrostatic protection capability of the display panel.

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

[0006] substrate;

[0007] An electrostatic protection layer, located on one side of the substrate;

[0008] The first structure is at least located on a side of the substrate away from the electrostatic protection layer;

[0009] Wherein, the electrostatic protection layer is connected to the first structure through an electrostatic conductive layer, and the electrostatic conductive layer is at least located on a side surface of the substrate.

[0010] In a second aspect, based on the same inventive concept, an embodiment of the present invention further provides a display device, comprising the above-mentioned display panel.

[0011] In a third aspect, based on the same inventive concept, an embodiment of the present invention further provides a spliced ​​display device, comprising at least two of the above-mentioned display panels;

[0012] The display panel has a splicing side, the splicing side is a side of the display panel spliced ​​with an adjacent display panel, and at least part of the display panel further includes a non-splicing side, the display panel is not spliced ​​with other display panels on the non-splicing side;

[0013] Among them, for at least part of the display panel, 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 part of the display panel, the electrostatic conductive layer in the display panel is at least located on the non-splicing side of the display panel.

[0014] The above technical solution provided by the embodiment of the present invention has the following beneficial effects:

[0015] In the technical solution provided in the embodiment of the present invention, the electrostatic protection layer, the electrostatic conduction layer and the first structure form an electrostatic release 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 to the electrostatic conduction layer via the electrostatic protection layer, and then conducted 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 to the first structure via the electrostatic conduction layer, and released on the back side of the substrate.

[0016] In addition, based on the above-mentioned electrostatic release path, not only can the electrostatic protection layer and the electrostatic conduction layer be used to protect the surface of the display panel to a large extent, preventing 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 on this path, it only flows from the side of the substrate to the back side through the electrostatic conduction layer. Static electricity is not transmitted from the inside of the substrate. Therefore, during its release process, it can also avoid affecting the devices and wiring inside the substrate.

[0017] Compared with the related art method of only relying on the electrostatic ring of the substrate itself to achieve electrostatic protection, the technical solution provided by the embodiment of the present invention can enable the display panel to have a stronger electrostatic protection capability, thereby avoiding the influence of static electricity on the display to a greater extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 paying any creative labor.

[0019] Figure 1 A schematic cross-sectional structure diagram of a display panel provided by an embodiment of the present invention;

[0020] Figure 2 A schematic diagram of the structure of a display panel provided by an embodiment of the present invention;

[0021] Figure 3 for Figure 2 A corresponding schematic diagram of a partial structure;

[0022] Figure 4 for Figure 2 Another corresponding partial structural schematic diagram;

[0023] Figure 5 Another schematic diagram of the structure of a display panel provided by an embodiment of the present invention;

[0024] Figure 6 for Figure 5 A cross-sectional view along the A1-A2 direction;

[0025] Figure 7 A schematic diagram of area division of a display panel provided by an embodiment of the present invention;

[0026] Figure 8 for Figure 7 A schematic diagram of a wiring distribution in one of the wiring areas;

[0027] Fig. 9 A schematic diagram of another area division of a display panel adopted in an embodiment of the present invention;

[0028] Fig.10 A schematic diagram of another area division of a display panel adopted in an embodiment of the present invention;

[0029] Fig.11 A schematic diagram of another structure of a display panel provided by an embodiment of the present invention;

[0030] Fig.12 A schematic diagram of another structure of a display panel provided by an embodiment of the present invention;

[0031] Fig.13 for Fig.12 A cross-sectional view along the B1-B2 direction;

[0032] Fig.14 A schematic diagram of another structure of a display panel provided by an embodiment of the present invention;

[0033] Fig.15 A schematic diagram of another cross-sectional structure of a display panel provided by an embodiment of the present invention;

[0034] Fig.16 Another schematic cross-sectional structure diagram of a display panel provided by an embodiment of the present invention;

[0035] Fig.17 A schematic diagram of another structure of a display panel provided by an embodiment of the present invention;

[0036] Fig.18 A schematic diagram of another structure of a display panel provided by an embodiment of the present invention;

[0037] Fig.19 A schematic diagram of wiring distribution on the back side of a substrate provided by an embodiment of the present invention;

[0038] Fig. 20 A schematic diagram of another structure of a display panel provided by an embodiment of the present invention;

[0039] Fig.21A schematic diagram of another cross-sectional structure of a display panel provided by an embodiment of the present invention;

[0040] Fig. 22 A schematic diagram of another cross-sectional structure of a display panel provided by an embodiment of the present invention;

[0041] Fig.23 A schematic diagram of another cross-sectional structure of a display panel provided by an embodiment of the present invention;

[0042] Fig.24 A schematic diagram of another cross-sectional structure of a display panel provided by an embodiment of the present invention;

[0043] Fig.25 A schematic diagram of another cross-sectional structure of a display panel provided by an embodiment of the present invention;

[0044] Fig.26 A schematic diagram of another cross-sectional structure of a display panel provided by an embodiment of the present invention;

[0045] Fig. 27 A schematic diagram of another cross-sectional structure of a display panel provided by an embodiment of the present invention;

[0046] Fig.28 A schematic diagram of another cross-sectional structure of a display panel provided by an embodiment of the present invention;

[0047] Fig.29 A schematic diagram of another cross-sectional structure of a display panel provided by an embodiment of the present invention;

[0048] Fig.30 A schematic diagram of another structure of a display panel provided by an embodiment of the present invention;

[0049] Fig.31 A schematic diagram of another cross-sectional structure of a display panel provided by an embodiment of the present invention;

[0050] Fig.32 A schematic diagram of another cross-sectional structure of a display panel provided by an embodiment of the present invention;

[0051] Fig.33 A schematic diagram of the structure of a protective layer provided by an embodiment of the present invention;

[0052] Fig.34 A schematic diagram of another cross-sectional structure of a display panel provided by an embodiment of the present invention;

[0053] Fig.35 Another schematic diagram of the structure of the protective layer provided by the embodiment of the present invention;

[0054] Fig.36A schematic diagram of another cross-sectional structure of a display panel provided by an embodiment of the present invention;

[0055] Fig.37 A schematic diagram of another structure of the protective layer provided by an embodiment of the present invention;

[0056] Fig.38 A schematic diagram of the structure of an electrostatic protection layer and an electrostatic conductive layer provided in an embodiment of the present invention;

[0057] Fig.39 Another schematic diagram of the structure of the electrostatic protection layer and the electrostatic conductive layer provided in an embodiment of the present invention;

[0058] Fig.40 A schematic diagram of another structure of the electrostatic protection layer and the electrostatic conductive layer provided in an embodiment of the present invention;

[0059] Fig.41 A schematic diagram of another structure of the electrostatic protection layer and the electrostatic conductive layer provided in an embodiment of the present invention;

[0060] Fig.42 A schematic diagram of another structure of the electrostatic protection layer and the electrostatic conductive layer provided in an embodiment of the present invention;

[0061] Fig.43 A schematic diagram of another cross-sectional structure of a display panel provided by an embodiment of the present invention;

[0062] Fig.44 A schematic diagram of another cross-sectional structure of a display panel provided by an embodiment of the present invention;

[0063] Fig.45 A schematic diagram of another cross-sectional structure of a display panel provided by an embodiment of the present invention;

[0064] Fig.46 A schematic diagram of the structure of a substrate provided by an embodiment of the present invention;

[0065] Fig.47 A schematic diagram of the structure of a display device provided by an embodiment of the present invention;

[0066] Fig.48 A schematic diagram of the structure of a spliced ​​display device provided by an embodiment of the present invention;

[0067] Fig.49 Another structural schematic diagram of a spliced ​​display device provided by an embodiment of the present invention;

[0068] Fig.50 Another structural schematic diagram of a spliced ​​display device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0069] In order to better understand the technical solution of the present invention, the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0070] It should be clear that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0071] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0072] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0073] An embodiment of the present invention provides a display panel, which may 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.

[0074] like Figure 1 As shown, Figure 1 This is a schematic cross-sectional structure 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 .

[0075] The substrate 1 includes an array substrate and light emitting diodes. The array substrate includes various functional circuits and various wirings, and the light emitting diodes can be micro LEDs or mini LEDs.

[0076] The electrostatic protection layer 2 is located on one side of the substrate 1, and the electrostatic protection layer 2 has the characteristics of light transmission and electrostatic release. Exemplarily, in an embodiment of the present invention, the electrostatic protection layer 2 has a low resistance characteristic, or a semi-insulating characteristic, which can provide conditions for the flow of static charge. For example, the electrostatic protection layer 2 may include metal oxide materials, such as indium tin oxide and zinc oxide materials, which not only have high transparency, but also have relatively low surface resistance and can effectively conduct static electricity. Alternatively, the electrostatic protection layer 2 may also include nanomaterials, such as carbon nanotubes and graphene materials, which can conduct static electricity in a short time and effectively prevent the accumulation of static electricity. Moreover, the electrostatic protection layer 2 may also be a composite film layer, for example, it may include at least two layers of an anti-fingerprint layer, an anti-glare layer and an anti-reflection layer. And, the electrostatic protection layer 2 may also be other ways that can make the surface have a semi-insulating electrostatic release effect, such as Ag-based antistatic liquid treatment. In addition, in one structure, the electrostatic protection layer 2 may cover the entire surface of the substrate 1, and the electrostatic protection layer 2 may be the outermost film layer of the display panel, that is, the surface where the electrostatic protection layer 2 is located is the light-emitting surface of the display panel.

[0077] The first structure 3 is at least located on a side of the substrate 1 away from the electrostatic protection layer 2 .

[0078] The electrostatic protection layer 2 is connected to the first structure 3 via the electrostatic conductive layer 4 , and the electrostatic conductive layer 4 is at least located on a side surface of the substrate 1 .

[0079] In the display panel provided in the embodiment of the present invention, the electrostatic protection layer 2, the electrostatic conduction layer 4 and the first structure 3 form an electrostatic release 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 to the electrostatic conduction layer 4 via the electrostatic protection layer 2, and then conducted to the first structure 3, and released on the back side of the substrate 1; for the static charge generated on the side of the display panel, this part of the static charge can be conducted to the first structure 3 via the electrostatic conduction layer 4, and released on the back side of the substrate 1.

[0080] In addition, based on the above-mentioned electrostatic release path, not only can the electrostatic protection layer 2 and the electrostatic conduction layer 4 be used to provide a large degree of protection for the surface of the display panel to prevent 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 on this path, it only flows from the side of the substrate 1 to the back side through the electrostatic conduction layer 4, and static electricity is not transmitted from the inside of the substrate 1. Therefore, during its release process, it can also avoid affecting the devices and wiring inside the substrate.

[0081] Compared with the related art method of only relying on the electrostatic ring of the substrate 1 itself to achieve electrostatic protection, the technical solution provided by the embodiment of the present invention can enable the display panel to have a stronger electrostatic protection capability, thereby avoiding the influence of static electricity on the display to a greater extent.

[0082] In a possible implementation, Figure 2 to Figure 6 As shown, Figure 2 A schematic diagram of the structure of a display panel provided by an embodiment of the present invention is shown in FIG. Figure 3 for Figure 2 A corresponding partial structural diagram, Figure 4 for Figure 2 Another corresponding partial structural diagram, Figure 5 Another schematic diagram of the structure of a display panel provided by an embodiment of the present invention is shown in FIG. Figure 6 for Figure 5 A cross-sectional view along the A1 - A2 direction, the substrate 1 includes a substrate 5 , a functional wiring 6 , a first side wiring 7 and a fan-out wiring 8 .

[0083] The functional wiring 6 is located on the side of the substrate 5 close to the electrostatic protection layer 2. The functional wiring 6 is a wiring for realizing the display function, for example, it may include multiple types of wiring such as data lines, power lines, reset lines, clock lines, etc.

[0084] The fan-out trace 8 is located on the side of the substrate 5 away from the electrostatic protection layer 2. The fan-out trace 8 is connected to the driving structure and is used to transmit the signal 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.

[0085] Among them, the functional wiring 6 is electrically connected to the fan-out wiring 8 through the first side wiring 7, and the first side wiring 7 is at least located on the side of the substrate 5. In the embodiment of the present invention, the first side wiring 7 can be led out from the front side of the substrate 5, connected to the functional wiring 6 on the front side, and then extended from the side of the substrate 5 to the back side of the substrate 5, and connected to the fan-out wiring 8 on the back side.

[0086] The first structure 3 includes a metal portion 3 - 1 . The metal portion 3 - 1 is located on a side of the substrate 5 away from the electrostatic protection layer 2 . Furthermore, the metal portion 3 - 1 is disposed on the same layer as the fan-out wiring 8 .

[0087] This structure uses the metal part 3-1 on the back side of the substrate 5 to release static electricity. The metal part 3-1 can be further arranged in the same layer as the fan-out wiring 8 on the back side of the substrate 5, that is, the metal part 3-1 and the fan-out wiring 8 are formed by the same composition process, which can save process flow and the metal part 3-1 does not need to occupy additional film thickness on the back side of the substrate 1, and will not affect the overall thickness of the display panel.

[0088] It should be noted that, unlike the panel structure in which the substrate is bent to make part of the wiring located on the side and back, the substrate 5 in the embodiment of the present invention is not bent, and the wiring on the side and back of the substrate 5 is directly formed by the composition process. For example, the first side wiring 7, the fan-out wiring 8 and the metal part 3-1 can be formed simultaneously by processes such as photolithography, sputtering coating, and chemical vapor deposition. In this panel structure, only the wiring extends on the side and back of the substrate 5. Since the film thickness of the wiring is very small, the impact on the frame width and the thickness of the substrate 1 is very small. Compared with the bending of the substrate, the display panel can achieve a narrower frame or even a frameless design. In addition, since the substrate 5 in the present invention does not need to be bent, the optional range of the substrate 5 is wider, and both flexible substrates such as polyimide and rigid substrates such as glass can be selected.

[0089] In addition, it should be noted that, as described above, the first side routing 7 and the fan-out routing 8 can be formed simultaneously by processes such as photolithography, sputtering, and chemical vapor deposition, so that the formed first side routing 7 and the fan-out routing 8 are connected, and the two do not need to be connected by an additional punching process. In other words, the functional routing 6 can be regarded as being connected to the continuous first lead-out line, which is led out from the front of the substrate 5 and extends from the side of the substrate 5 to the back of the substrate 5, and the portion of the first lead-out line located on the front and side of the substrate 5 is regarded as the first side routing 7 described in the present invention, and the portion of the first lead-out line located on the back of the substrate 5 is regarded as the fan-out routing 8 described in the present invention.

[0090] The front side of the substrate 5 described in the embodiment of the present invention 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 .

[0091] In addition, it should be noted that the number, film layer position, shape, etc. of the functional routing 6, fan-out routing 8, etc. shown in the drawings of the embodiments of the present invention are schematic illustrations. For example, in the actual structure, the functional routing 6 can be located in multiple metal layers and can be arranged in a variety of ways.

[0092] In a possible implementation, Figure 7 and Figure 8 As shown, Figure 7 A schematic diagram of area division of a display panel provided by an embodiment of the present invention, Figure 8 for Figure 7 A schematic diagram of routing distribution of one of the wiring areas 9 is shown in the figure. The substrate 5 has at least one wiring area 9 on the side away from the electrostatic protection layer 2. The wiring area 9 includes a fan-out area 10 and a non-fan-out area 11. The fan-out routing 8 is located in the fan-out area 10.

[0093] The non-fan-out region 11 includes a first non-fan-out region 12 , and the metal portion 3 - 1 includes a first metal portion 13 . The first metal portion 13 is located in the first non-fan-out region 12 .

[0094] The fan-out trace 8 is electrically connected to the fan-out pin 14. In a single fan-out area 10, the fan-out trace 8 converges when extending toward the fan-out pin 14, so that in the direction along the fan-out trace 8 pointing to the fan-out pin 14, the width of at least a part of the fan-out area 10 in the first direction x becomes smaller, and then there are some blank areas on both sides of the fan-out area 10, and these blank areas are the non-fan-out areas 11 mentioned above.

[0095] Based on this, an embodiment of the present invention can choose to design at least part of the metal part 3-1 in the non-fan-out area 11. In this way, this part of the metal part 3-1 can not only release static electricity, but also be used to improve the uniformity of the graphical process of the wiring area 9, such as improving the etching uniformity of the wiring area 9, which helps to improve the quality of the fan-out wiring 8 formed.

[0096] In a possible implementation, combining 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, wherein the first direction x intersects the second direction y. At least part of the first side edge routing is electrically connected to the fan-out routing 8 on one side of the first edge 15 .

[0097] The first non-fan-out area 12 and the fan-out area 10 are arranged along the first direction x, and the first non-fan-out area 12 is adjacent to the second edge 16 .

[0098] That is, the first metal portion 13 is adjacent to the second edge 16. In this way, the electrostatic conductive layer 4 can be directly connected to the first metal portion 13 at the second edge 16, which is more convenient for connection and does not need to extend a long distance on the back of the substrate, shortening the electrostatic discharge path, so that the static electricity is transmitted to the first metal portion 13 more quickly and conducted away through the first metal portion 13.

[0099] In an embodiment of the present invention, the non-fan-out area 11 may include two first non-fan-out areas 12, and the two first non-fan-out areas 12 are respectively arranged adjacent to the two second edges 16, so that the electrostatic conductive layer 4 can be connected to the first metal part 13 on both sides of the substrate 5, and the static electricity is released faster.

[0100] Further, see again Figure 7 and Figure 8The wiring area 9 includes a first wiring area 9-1, and the first wiring area 9-1 includes at least two fan-out areas 10 arranged along the 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, and the second non-fan-out area 17 is located between adjacent fan-out areas 10.

[0101] In order to further improve the patterning process uniformity of the wiring area 9 , a dummy metal 18 may be provided in the second non-fan-out area 17 .

[0102] In one possible implementation, see again Figure 8 The first metal portion 13 includes a plurality of first traces 19 , the plurality of first traces 19 are electrically connected to a second trace 20 , and the second trace 20 is connected to a first pin 23 .

[0103] The fan-out wiring 8 is a linear structure. By designing the first metal portion 13 to be a linear structure, the first metal portion 13 and the fan-out wiring 8 are similar in shape, and the first metal portion 13 has a better effect of improving the uniformity of the patterning process in the wiring area 9.

[0104] The first metal part 13 is connected to the first pin 23 , and the static electricity on the static electricity release path where the static electricity protection layer 2 is located will eventually be conducted to the driving structure bound thereto through the first pin 23 , and then conducted away through the driving structure.

[0105] Further, see again Figure 8 The second line 20 extends from between the first line 19 and the fan-out line 8 to be electrically connected to the first pin 23, so that the setting position of the first pin 23 can be closer to the fan-out pin 14, the overall arrangement of the pins is tighter, and it is easier to bind the pins to the driving structure.

[0106] It should be noted that the number of wiring areas 9 in the embodiment of the present invention is not specifically limited. Figure 7 and Fig. 9 , Fig. 9 FIG. 1 is another schematic diagram of region division of a display panel according to an embodiment of the present invention. The back side of the substrate 5 may have two wiring regions 9. Figure 7 The distribution of the fan-out area 10 and the non-fan-out area 11 in the two wiring areas 9 may be different, or, see Fig. 9 , the distribution of the fan-out area 10 and the non-fan-out area 11 in the two wiring areas 9 can be the same. Fig.10 As shown, Fig.10 This is another schematic diagram of area division of the display panel adopted in the embodiment of the present invention. The back side of the substrate 5 may also have only one wiring area 9 .

[0107] In a possible implementation, Figure 11 to Figure 13 As shown, Fig.11This is another structural schematic diagram of a display panel provided by an embodiment of the present invention. Fig.12 This is another structural schematic diagram of a display panel provided by an embodiment of the present invention. Fig.13 for Fig.12 In a cross-sectional view along the B1-B2 direction, 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 part of the first side trace 7 is electrically connected to the fan-out trace 8 on one side of the first edge 15 .

[0108] The side of the substrate 5 away from the electrostatic protection layer 2 has a fan-out region 10 , and the fan-out wiring 8 is located in the fan-out region 10 .

[0109] The metal portion 3 - 1 includes a second metal portion 24 . The second metal portion 24 is adjacent to the second edge 16 , and the second metal portion 24 is not aligned with the fan-out region 10 along the first direction x.

[0110] For example, the second metal portion 24 may be located outside the wiring region 9 and arranged along the second edge 16. Figure 7 The wiring area 9 is shown in the schematic diagram, and the substrate 5 is provided with wiring areas 9 on one side of the two first edges 15, and the second metal part 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 Fig.10 As shown in the position of the wiring area 9 , the substrate 5 is provided with the wiring area 9 only on one side of a first edge 15 , and the second metal portion 24 can be located on the side of the wiring area 9 facing the opposite first edge 15 , and arranged along the two second edges 16 at the positions of the two second edges 16 .

[0111] By disposing some second metal parts 24 in the area outside the wiring area 9 , the static electricity in the static electricity conductive layer 4 can be dispersed and conducted to the first metal part 13 and the second metal part 24 , thereby increasing the static electricity release path and improving the release rate.

[0112] In a possible implementation, Fig.14 and Fig.15 As shown, Fig.14 This is another structural schematic diagram of a display panel provided by an embodiment of the present invention. Fig.15 This is another schematic cross-sectional structure diagram of a display panel provided by an embodiment of the present invention. The substrate 5 includes a first edge 15 .

[0113] The substrate 1 also includes a connection portion 25, which is located on a side of the substrate 5 close to the electrostatic protection layer 2 and adjacent to the first edge 15. The functional wiring 6 is electrically connected to the connection portion 25, and at least part of the first side wiring 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.

[0114] As mentioned above, the functional wiring 6 can be located in different metal layers. After the connection portion 25 is provided, no matter which metal layer the functional wiring 6 is located in, it is connected to the connection portion 25 near the first edge 15, and then the first side wiring 7 is led out from the connection portion 25. In this way, the led out first side wiring 7 can be routed separately, and the metal layer where the first side wiring 7 is located is not restricted by the metal layer where the functional wiring 6 is located, so that all the first side wirings 7 can be formed by the same patterning process.

[0115] It should be noted that Fig.15 The film layer positions of the functional wiring 6 and the connecting portion 25 shown in the figure are only schematic illustrations. In the embodiment of the present invention, the metal layer where the connecting portion 25 is located is located on the side of the metal layer where the functional wiring 6 is located away from the substrate 5, but the functional wiring 6 can be located in different metal layers. When the functional wiring 6 in different metal layers extends to the vicinity of the first edge 15, the connecting portion 25 is led out above it, and then the first side wiring 7 is led out above the connecting portion 25.

[0116] In a possible implementation, Fig.16 As shown, Fig.16 This is another schematic cross-sectional structure diagram of a display panel provided in an embodiment of the present invention. The display panel further includes a second structure 26 . The second structure 26 is at least located on a side of the metal portion 3 - 1 away from the electrostatic protection layer 2 .

[0117] The electrostatic conduction layer 4 and / or the metal part 3-1 are also connected to the second structure 26 via the first conductive connection structure 27, so that the static electricity on the electrostatic conduction layer 4 and / or the metal part 3-1 can be further conducted to the second structure 26, so that part of the static electricity is conducted away through the second structure 26, thereby accelerating the static electricity release speed.

[0118] In the embodiment of the present invention, the first conductive connection structure 27 may include conductive paste, such as silver paste. The conductive paste has conductive properties and a certain viscosity, and can be firmly attached to the surface of the electrostatic conductive layer 4, the metal part 3-1 and the second structure 26, thereby achieving stable connection.

[0119] In an embodiment of the present invention, the first conductive connection structure 27 may be arranged at least partially around the edge of the substrate 1, or may be arranged only at the location where the metal portion 3-1 is arranged, but not at the location where the side wiring is located, to prevent the side wiring from short-circuiting.

[0120] In the embodiment of the present invention, the second structure 26 may include at least one of a heat dissipation structure, a support structure, a back plate and a frame.

[0121] For example, see Fig.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 a heat spreader adhesive. The heat spreader may be an aluminum plate, a stainless steel plate, or a copper plate, etc. The heat spreader adhesive may be a copper adhesive, etc. These structures have good electrostatic discharge capabilities and can quickly conduct away static electricity. The support structure 29 may include a reinforcement plate or a support module.

[0122] The heat dissipation structure, the supporting structure, the back plate and the frame are usually 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 to release static electricity.

[0123] In a possible implementation, Fig.17 As shown, Fig.17 This is another structural schematic diagram of a display panel provided by an embodiment of the present invention. The substrate 1 includes a base 5 , an electrostatic ring 30 , a second side wiring 31 and a first connecting wire 32 .

[0124] The electrostatic ring 30 is located on a side of the substrate 5 close to the electrostatic protection layer 2 and extends around the edge of the substrate 1. The first connecting line 32 is located on a side of the substrate 5 away from the electrostatic protection layer 2 and is electrically connected to the second pin 33. The second pin 33 is used to be electrically connected to the driving structure to receive the signal provided by the driving structure. The electrostatic ring 30 is connected to the first connecting line 32 through the second side wiring 31, and the second side wiring 31 is at least located on the side of the substrate 5.

[0125] In this structure, the substrate 1 itself can also use the electrostatic ring 30 for electrostatic protection. The static electricity entering from the side of the substrate is transmitted to the second side wiring 31 through the electrostatic ring 30, and then transmitted to the first connecting line 32, and is conducted away through the driving structure bound to the second pin 33.

[0126] Furthermore, combined with Figure 17 to Figure 19 , Fig.18 This is another structural schematic diagram of a display panel provided by an embodiment of the present invention. Fig.19 This is a schematic diagram of the wiring distribution on the back side of the substrate provided by 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.

[0127] The functional routing 6 is located on the side of the substrate 5 close to the electrostatic protection layer 2 , and the fan-out routing 8 is located on the side of the substrate 5 away from the electrostatic protection layer 2 . The functional routing 6 is connected to the fan-out routing 8 through the first side routing 7 , and the first side routing 7 is at least located on the side of the substrate 5 .

[0128] Among them, 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 arranged on the same layer as the fan-out wiring 8, and the first connecting line 32 extends between the metal part 3-1 and the fan-out wiring 8 to be electrically connected to the second pin 33.

[0129] In this way, the first connection line 32 connected to the electrostatic ring 30 will not be spaced between the metal part 3 - 1 and the edge of the substrate 5 , and will not hinder the connection between the metal part 3 - 1 and the electrostatic protection layer 2 .

[0130] Further, see again Fig.18 The metal part 3 - 1 is electrically connected to the first pin 23 , and the first pin 23 is used to be electrically connected to the driving structure to receive the signal provided by the driving structure.

[0131] In the embodiment of the present invention, the driving structure may provide the same voltage to the first pin 23 and the second pin 33 , or may provide different voltages.

[0132] When the driving structure provides different voltages to the first pin 23 and the second pin 33 , in the embodiment of the present invention, the voltage provided by the driving structure to the first pin 23 may be greater than the voltage provided by the driving structure to the second pin 33 .

[0133] In the display panel provided in the embodiment of the present invention, the electrostatic release path from the electrostatic protection layer 2 to the metal part 3-1 is the main path for electrostatic protection, so the signal provided by the driving structure to the first pin 23 can be slightly larger, thereby enhancing the speed and effect of electrostatic release on the main path.

[0134] In a possible implementation, the first structure 3 is electrically insulated from the electrostatic ring 30 .

[0135] Taking the first structure 3 including the metal part 3-1 as an example, the structure on the electrostatic release path where the metal part 3-1 is located does not contact the structure on the electrostatic release path where the electrostatic ring 30 is located, and is electrically insulated from each other. The two electrostatic release paths are two independent paths, thereby preventing static electricity from being transmitted to the electrostatic ring 30 when it is transmitted on the electrostatic release path where the electrostatic protection layer 2 is located, causing static electricity to enter the interior of the substrate, thereby reducing the risk of static electricity damage to the wiring and devices inside the substrate 1.

[0136] In a possible implementation, Fig. 20 and Fig.21 As shown, Fig. 20 This is another structural schematic diagram of a display panel provided by an embodiment of the present invention. Fig.21This is another schematic cross-sectional structure diagram of a display panel provided by an embodiment of the present invention. The substrate 1 includes a base 5 , a functional wiring 6 , a first side wiring 7 and a fan-out wiring 8 .

[0137] The functional routing 6 is located on the side of the substrate 5 close to the electrostatic protection layer 2, and the fan-out routing 8 is located on the side of the substrate 5 away from the electrostatic protection layer 2. The functional routing 6 is electrically connected to the fan-out routing 8 through the first side routing 7, and the first side routing 7 is at least located on the side of the substrate 5.

[0138] The first structure 3 includes a first substructure 3 - 2 , and the first substructure 3 - 2 is located at a side of the fan-out trace 8 away from the substrate 5 .

[0139] In this structure, static electricity on the electrostatic conductive layer 4 will eventually be conducted away through the first substructure 3-2. The first substructure 3-2 may be some existing structures in the display panel, such as a heat spreader, a reinforcing sheet, etc., and no new structure needs to be formed as the first substructure.

[0140] In a feasible implementation manner, the first substructure 3 - 2 includes at least one of a heat dissipation structure, a support structure and a back plate.

[0141] For example, in the embodiments of the present invention, see Fig.21 The first substructure 3-2 includes a heat dissipation structure 28, and the heat dissipation structure 28 may include a heat spreader and / or a heat spreader adhesive. The heat spreader may be an aluminum plate, a stainless steel plate, or a copper plate, and the heat spreader adhesive may be a copper adhesive. These structures have good electrostatic discharge capabilities and can quickly conduct away static electricity.

[0142] The heat dissipation structure, the support structure and the back plate are usually 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 to release static electricity.

[0143] In one possible implementation, see again Fig.21 The electrostatic conductive layer 4 is connected to the first substructure 3-2 through the second conductive connection structure 34, so that the electrostatic transmission layer 4 does not need to extend too far on the back side of the substrate 5 in order to contact the first substructure 3-2, thereby reducing the risk of short circuit between the electrostatic transmission layer 4 and the fan-out wiring 8.

[0144] 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. That is, 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.

[0145] Furthermore, if Fig. 22 As shown, Fig. 22 This is another schematic cross-sectional structure diagram of a display panel provided by an embodiment of the present invention. The electrostatic conductive layer 4 includes a first section 35 . The first section 35 is located on a side surface of the substrate 1 .

[0146] Part of the second conductive connection structure 34 is also located on the side of the first section 35 away from the substrate 1, and then forms a connection with the side of the electrostatic conductive layer 4 to increase the connection area between the two, thereby increasing the reliability of the electrostatic release path connection and improving the electrostatic conduction capability.

[0147] In the embodiment of the present invention, when the second conductive connection structure 34 is located on the side of the substrate 1 away from the electrostatic protection layer 2, the second conductive connection structure 34 can be arranged in a full circle around the edge of the substrate 1. Alternatively, the display panel may include at least two second conductive connection structures 34, and the second conductive connection structure 34 extends in a strip shape along the second direction y. For example, when the first side wiring 7 is provided on one side of the first edge 15 of the substrate 5 and the first side wiring 7 is not provided on one side of the second edge 16, the second conductive connection structure 34 extends along the second edge 16 on the second edge 16. Alternatively, the display panel may also include a plurality of second conductive connection structures 34 spaced apart from each other, and the plurality of second conductive connection structures 34 are arranged along the edge of the substrate 5.

[0148] When part of the second conductive connection structure 34 is also located on the side of the first subsection 35 away from the substrate 1, the setting position of the second conductive connection structure 34 may be related to the setting position of the electrostatic conductive layer 4. For example, when the electrostatic conductive layer 4 is arranged in a full circle around the substrate 1, the second conductive connection structure 34 may be arranged in a full circle around the edge of the substrate 1, or may extend along the second edge 16 only on one side of the second edge 16. When the electrostatic conductive layer 4 is arranged only on one side of the second edge 16, the second conductive connection structure 34 may also be arranged only on one side of the second edge 16.

[0149] In a feasible implementation, the second conductive connection structure 34 may include copper foil, and the copper foil may be bonded and fixed to the electrostatic conductive layer 4 and the first substructure 3 - 2 .

[0150] Copper foil has good ductility and can undergo plastic deformation when subjected to external force without breaking easily. Therefore, copper foil is selected to connect the electrostatic conductive layer 4 and the first substructure 3 - 2 to improve the connection reliability of the entire electrostatic release path.

[0151] In a feasible embodiment, the sheet resistance of the electrostatic protection layer 2 is greater than or equal to 10 4 Ohm / square and less than or equal to 10 9 Ohm / sq.

[0152] For materials that can play an antistatic role, when the square resistance of the electrostatic protection layer 2 is within the above range, the electrostatic protection layer 2 has a low resistance characteristic, or a semi-insulating characteristic. The electrostatic protection layer 2 has a smaller hindering effect on the flow of static charge, and its electrostatic charge release ability is better. Static charge will move and conduct faster in the electrostatic protection layer 2, thereby accelerating the release of static charge.

[0153] In a feasible implementation manner, the square resistance of the electrostatic conductive layer 4 is greater than or equal to 10 4 Ohm / square and less than or equal to 10 9 Ohm / sq.

[0154] When the square resistance of the electrostatic conductive layer 4 is within the above range, the electrostatic conductive layer 4 also has a low resistance characteristic, and the electrostatic conductive layer 4 has a smaller hindering effect on the flow of static charge, so that static electricity is conducted to the first structure 3 more quickly and released through the first structure 3 .

[0155] In a feasible embodiment, the square resistance of the electrostatic conduction layer 4 is smaller than the square resistance of the electrostatic protection layer 2. At this time, the electrostatic conduction layer 4 has a smaller obstruction to the flow of charges, and the transmission rate of static electricity on the electrostatic conduction layer 4 is faster, which can further reduce the risk of static electricity entering the interior of the substrate 1 from the side of the substrate 1 during the transmission process.

[0156] In a possible implementation, Fig.23 and Fig.24 As shown, Fig.23 is another schematic cross-sectional structure diagram of a display panel provided by an embodiment of the present invention, Fig.24 This is another cross-sectional structural diagram of a display panel provided by an embodiment of the present invention, in which the edge portion of the electrostatic protection layer 2 protrudes from the substrate 1, and the electrostatic conductive layer 4 is at least connected to the protruding portion of the electrostatic protection layer 2, so that the connection between the two will be more convenient.

[0157] In one structure, the substrate 1 has a first orthographic projection on the electrostatic protection layer 2, and each edge of the first orthographic projection is spaced from the adjacent edges in the electrostatic protection layer 2, that is, relative to the substrate 1, the electrostatic protection layer 2 is expanded outward in a full circle, so that no matter whether the electrostatic conductive layer 4 is arranged around the substrate 1 or only in a local position, it can be conveniently connected to the protruding part of the electrostatic protection layer 2.

[0158] The spacing between the edge of the first orthographic projection and the edge adjacent thereto in the electrostatic protection layer 2 may be greater than or equal to the thickness of the electrostatic conductive layer 4, so as to leave enough accommodation space for the electrostatic protection layer 2, so that the electrostatic conductive layer 4 is only located in the area covered by the electrostatic protection layer 2. The thickness of the electrostatic conductive layer 4 may be regarded as the thickness of the electrostatic conductive layer 4 located on the side of the substrate 1 in the direction parallel to the plane of the substrate 1. Furthermore, the spacing between different edges of the first orthographic projection and the edges adjacent thereto in the electrostatic protection layer 2 may be set to be equal.

[0159] Further, see again Fig.23 and Fig.24 The electrostatic protection 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 .

[0160] The first side surface 38 is inclined toward the center of the electrostatic protection layer 2 along the direction from the first surface 36 to the second surface 37. The electrostatic conductive layer 4 is connected to the first side surface 38.

[0161] When the first side surface 38 is designed as above, the electrostatic protection layer 2 can have a larger contact area with the electrostatic conduction layer 4 without expanding the substrate 1 too much. Firstly, the influence of the expansion of the electrostatic protection layer 2 on the overall size of the panel can be reduced. When the display panel is used in a spliced ​​display device, the splicing seam can be weakened. Secondly, the connection reliability between the electrostatic protection layer 2 and the electrostatic conduction layer 4 can be increased.

[0162] In one possible implementation, see again Fig.23 and Fig.24 The display panel further includes a side filling layer 39 , and the side filling layer 39 is located between the electrostatic conductive layer 4 and the substrate 1 .

[0163] When the electrostatic protection layer 2 is expanded outward and connected to the electrostatic conductive layer 4 , gaps may exist between the electrostatic conductive layer 4 and the substrate 1 . At this time, the side filling layer 39 can be used to fill these gaps to prevent the electrostatic conductive layer 4 from breaking.

[0164] It should be noted that, in the embodiment of the present invention, the side filling 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 protection layer 2. Fig.25 As shown, Fig.25 This is another schematic cross-sectional structure diagram of a display panel provided by an embodiment of the present invention. The side filling layer 39 may be located only on the side surface of the substrate 1 .

[0165] In a possible implementation, Fig.26 As shown, Fig.26Another cross-sectional structural schematic diagram of a display panel provided by 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 the electrostatic protective layer 2, further increasing the connection area between the electrostatic protective layer 2 and the electrostatic conductive layer 4, and improving the reliability of electrostatic discharge. Among them, the surface where the electrostatic protective layer 2 is located is the light-emitting surface of the display panel, and the electrostatic conductive layer 4 is still in contact with the electrostatic protective layer 2 above the electrostatic protective layer 2, which means that a portion of the electrostatic conductive layer 4 is also arranged on the light-emitting surface side of the display panel.

[0166] In the embodiment of the present invention, the static conductive layer 4 may include a sealant material capable of conducting static electricity, so that the static conductive layer 4 can also play a role of side packaging to prevent water and oxygen from penetrating into the substrate 1 from the side.

[0167] In a possible implementation, combining Fig. 20 ,like Fig. 27 and Fig.28 As shown, Fig. 27 is another schematic cross-sectional structure diagram of a display panel provided in an embodiment of the present invention, Fig.28 Another cross-sectional structural schematic diagram of a display panel provided by an embodiment of the present invention, the substrate 1 includes a substrate 5, a functional wiring 6, a first side wiring 7 and a fan-out wiring 8. Among them, the functional wiring 6 is located on the side of the substrate 5 close to the electrostatic protection layer 2, the fan-out wiring 8 is located on the side of the substrate 5 away from the electrostatic protection layer 2, the functional wiring 6 is connected to the fan-out wiring 8 through the first side wiring 7, and the first side wiring 7 is at least located on the side of the substrate 5.

[0168] The display panel further includes a side encapsulation layer 40 . The side encapsulation layer 40 is at least located on a side surface of the substrate 1 and covers the first side trace 7 .

[0169] When the first side routing line 7 is provided, a side encapsulation layer 40 is further provided outside the first side routing line 7 , and the side encapsulation layer 40 can be used to protect the first side routing line 7 from being scratched, short-circuited, etc.

[0170] The side encapsulation layer 40 can be arranged around the substrate 1, and can be arranged at positions where side routing is arranged or not arranged. Alternatively, the side encapsulation layer 40 can also be arranged only at positions where side routing is arranged.

[0171] Furthermore, the sheet resistance of the side encapsulation layer 40 is greater than 10 9 Ohm / sq.

[0172] When the square resistance of the side encapsulation layer 40 is within the above range, the side encapsulation layer 40 has a high resistance characteristic, and can shield the interference of static electricity on the static electricity conductive layer 4 on the wiring on the first side wiring 7 .

[0173] In a possible implementation, Fig.29 As shown, Fig.29 This is another cross-sectional structural schematic diagram of a display panel provided in an embodiment of the present invention, wherein the electrostatic protection layer 2 includes at least one of an anti-fingerprint layer (Anti-Fingerprint, AF) 41 , an anti-glare layer (Anti-Glare, AG) 42 and an anti-reflection layer (Anti-Reflection, AR) 43 .

[0174] For example, in an embodiment of the present invention, the electrostatic protection 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 protection layer 2 has multiple properties such as anti-static, anti-reflection, anti-glare and anti-fingerprint, and the film material performance is better.

[0175] In a possible implementation, Figure 30 to Figure 32 As shown, Fig.30 This is another structural schematic diagram of a display panel provided by an embodiment of the present invention. Fig.31 is another schematic cross-sectional structure diagram of a display panel provided by an embodiment of the present invention, Fig.32 This is another schematic cross-sectional structure diagram of a display panel provided by an embodiment of the present invention. The base plate 1 includes a substrate 5 and a fan-out wiring 8 . The fan-out wiring 8 is located on a side of the substrate 5 away from the electrostatic protection layer 2 .

[0176] The display panel further includes a protection layer 44 , at least part of which is located on a side of the fan-out wiring 8 away from the electrostatic protection layer 2 , for protecting the fan-out wiring 8 and preventing the fan-out wiring 8 from being scratched or short-circuited.

[0177] The substrate 5 has a binding area 45 on one side away from the electrostatic protection layer 2, and the binding area 45 includes the fan-out pin 14, the first pin 23 and the second pin 33. The protection layer 44 has a first hollow 46, and the first hollow 46 exposes the binding area 45, so that the pins in the binding area 45 are exposed, which is convenient for binding the pins with the driving structure.

[0178] It should be noted that, again, see Fig.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 hollow 47, and the third hollow 47 exposes the binding area 45 to facilitate the binding of the pins in the binding area 45 to the driving structure.

[0179] In a possible implementation, combining Figure 2 ,like Fig.33 and Fig.34 As shown, Fig.33A schematic diagram of the structure of the protective layer 44 provided in an embodiment of the present invention is shown in FIG. Fig.34 This is another cross-sectional structural schematic diagram of a display panel provided by an embodiment of the present invention. The first structure 3 includes a metal portion 3 - 1 . The metal portion 3 - 1 is located on a side of the substrate 5 away from the electrostatic protection layer 2 , and the metal portion 3 - 1 is arranged on the same layer as the fan-out wiring 8 .

[0180] Part of the protection layer 44 is also located on a side of the metal portion 3 - 1 away from the electrostatic protection layer 2 to protect the metal portion 3 - 1 from being scratched.

[0181] In one possible implementation, see Fig.33 and Fig.34 The protective layer 44 also has a second hollow 48, which exposes the area of ​​the metal part 3-1 for connecting with the electrostatic conductive layer 4, so that part of the metal part 3-1 is exposed to facilitate connection with the electrostatic conductive layer 4.

[0182] Or, in another feasible implementation, as Fig.35 and Fig.36 As shown, Fig.35 Another structural schematic diagram of the protective layer 44 provided in an embodiment of the present invention is shown in FIG. Fig.36 Another cross-sectional structural diagram of the display panel provided by the embodiment of the present invention, for the part 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 the part 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 set the second hollow 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 have can also be set larger.

[0183] In the embodiment of the present invention, the protective layer 44 may cover the entire substrate, and only include some of the aforementioned smaller hollow areas. Fig.37 As shown, Fig.37 This is another structural schematic diagram of the protection layer 44 provided in an embodiment of the present invention. The display panel may include at least two protection layers 44 , and a single protection layer 44 is only partially disposed on the back side of the substrate 1 .

[0184] In a feasible implementation, in order to make the protective layer 44 have better corrosion resistance, wear resistance, and scratch resistance, the protective layer 44 can be formed by a silk screen printing process.

[0185] In a possible implementation, Fig.38 and Fig.39 As shown, Fig.38 A schematic diagram of the structure of the electrostatic protection layer 2 and the electrostatic conductive layer 4 provided in an embodiment of the present invention, Fig.39This is another structural schematic diagram of the electrostatic protection 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 .

[0186] The electrostatic conductive layer 4 is at least partially arranged around the edge of the substrate 1, which includes at least the following situations: the electrostatic conductive layer 4 can completely surround the substrate 1, for example, in combination with Figure 7 and Fig.38 The substrate 5 is provided with an electrostatic conductive layer on one side of the two first edges 15 and the two second edges 16. Alternatively, the electrostatic conductive layer 4 can also be provided only along a portion of the edge of the substrate 1, for example, in combination with Fig.10 and Fig.39 Among the two first edges 15, one of the first edges 15 has a wiring area 9 on one side, and the other first edge 15 has no wiring area 9 on one side. The electrostatic conductive layer 4 can be provided only on the two second edges 16 and on the side of the first edge 15 that does not correspond to the wiring area 9, and not provided on the side of the first edge 15 that corresponds to the wiring area 9, so as to further avoid the influence of static electricity on the first side wiring 7 during the release process.

[0187] In this structure, the electrostatic conductive layer 4 is continuously arranged with a larger area, and the distribution of static electricity in the electrostatic conductive layer 4 is more dispersed and less likely to accumulate.

[0188] Or, in another feasible implementation, as Figure 40-41 As shown, Fig.40 Another structural schematic diagram of the electrostatic protection layer 2 and the electrostatic conductive layer 4 provided in an embodiment of the present invention, Fig.41 This is another structural schematic diagram of the electrostatic protection layer 2 and the electrostatic conductive layer 4 provided in an embodiment of the present invention. Fig.42 Schematic diagram of another structure of the electrostatic protection layer 2 and the 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 ( Fig.40 and Fig.41 (not shown) connection.

[0189] In one embodiment, in combination 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 edge trace 7 is located on the side where the first edge 15 is located.

[0190] The display panel includes at least two electrostatic conduction layers 4, wherein part of the electrostatic conduction layer 4 is located on one side of the second edge 16, and the remaining part of the electrostatic conduction layer 4 is located on the other side of the second edge 16, that is, the electrostatic conduction layer is only located at a position where no side wiring is set, so as to avoid the influence of electrostatic conduction on the side wiring.

[0191] In addition, 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 protection 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, the electrostatic conductive layer 4 is connected to the metal part 3-1. Fig.42 This part of the electrostatic conductive layer 4 can extend in a strip shape along the second direction y, so as to facilitate contact connection with the metal part 3-1 over a larger area. Fig.41 and Figure 4 This part of the electrostatic conductive layer 4 can also be provided only at the location where the metal portion 3-1 is located, and not provided at the location where there is no metal portion 3-1.

[0192] In a possible implementation, Fig.43 and Fig.44 As shown, Fig.43 is another schematic cross-sectional structure diagram of a display panel provided in an embodiment of the present invention, Fig.44 Another cross-sectional structural schematic diagram of a 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.

[0193] The electrostatic protection layer 2, the light shielding layer 49 and the ink layer 50 can constitute a packaging structure. Among them, the light shielding layer 49 is used to shield the light and can be a black matrix. The ink layer 50 can include a black ink material to shield the area that does not need to be transparent; or the ink layer 50 can also include a transparent ink material to reduce the scattering and reflection of light.

[0194] In a possible implementation, Fig.45 As shown, Fig.45 This is another cross-sectional structural diagram of a display panel provided by an embodiment of the present invention. The display panel further includes a display area 51 and a shift register 52 . At least a portion of the shift register 52 is located in the display area 51 .

[0195] In this configuration, the shift register 52 occupies almost no frame space, so that the display panel can achieve an ultra-narrow frame or a frameless design.

[0196] In other words, under this design, a portion of the frame space released 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, and further between the display area 51 and the outer edge of the substrate 1. Under the premise of ensuring that the display panel frame is still narrow, more turns of the electrostatic ring 30 can be set to enable the substrate 1 itself to achieve better anti-static ability. 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.

[0197] In addition, it should be noted that Fig.44 It is simply indicated that at least part of the shift register 52 is located in the display area 51, and does not mean a specific limitation on the location of the shift register 52. In one configuration, the shift register 52 includes a plurality of shift units arranged in cascade, and the shift units can be arranged between adjacent pixel circuit rows, thereby optimizing the arrangement between the shift register 52 and the pixel circuit.

[0198] In a possible implementation, Fig.46 As shown, Fig.46 This is a structural 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, a micro LED, etc.

[0199] Among them, the array substrate 53 may include the aforementioned substrate 5, functional routing 6, first side routing 7, fan-out routing 8, electrostatic ring 30, second side routing 31, first connecting line 32 and other structures. In addition, the array substrate 53 may also include pixel circuits, shift registers 52 and other functional circuits.

[0200] Based on the same inventive concept, an embodiment of the present invention further provides a display device, such as Fig.47 As shown, Fig.47 1 is a schematic diagram of a structure of a display device provided by an embodiment of the present invention, and the display device includes the above-mentioned display panel 100. Of course, Fig.47 The display device shown is for illustration only, and the display device may be any electronic device with a display function, such as a mobile phone, a tablet computer, a laptop computer, an e-reader or a television.

[0201] Based on the same inventive concept, an embodiment of the present invention further provides a splicing display device, such as Figures 48 to 50 As shown, Fig.48 A schematic diagram of the structure of a spliced ​​display device provided by an embodiment of the present invention is shown in FIG. Fig.49 Another structural schematic diagram of the splicing display device provided by an embodiment of the present invention is shown in FIG. Fig.50 This is another schematic diagram of the structure of a spliced ​​display device provided by an embodiment of the present invention. The spliced ​​display device includes at least two of the above-mentioned display panels 100 .

[0202] The display panel 100 has a splicing side, which is a side where the display panel 100 is spliced ​​with an adjacent display panel 100. At least part of the display panel 100 also includes a non-splicing side, where the display panel 100 is not spliced ​​with other display panels.

[0203] Among them, for at least part of the display panel 100, the electrostatic conductive layer 4 in the display panel 100 is at least located on the splicing side of the display panel 100, and / or, for at least part of the display panel 100, the electrostatic conductive layer 4 in the display panel is at least located on the non-splicing side of the display panel 100.

[0204] This type of spliced ​​display device can be a spliced ​​large screen, which can be used in public information display (PID) scenes such as stations and airports. When the spliced ​​display device includes the above display panel 100, the antistatic ability of the device can be effectively improved, thereby improving the display effect of the spliced ​​display device.

[0205] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0206] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions 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 protection layer, located on one side of the substrate; The first structure is at least located on a side of the substrate away from the electrostatic protection layer; Wherein, the electrostatic protection layer is connected to the first structure through an electrostatic conductive layer, and the electrostatic conductive layer is at least located on a side surface of the substrate.

2. The display panel according to claim 1, characterized in that: The substrate comprises a substrate, a functional wiring, a first side wiring and a fan-out wiring; The functional wiring is located on a side of the substrate close to the electrostatic protection layer, the fan-out wiring is located on a side of the substrate away from the electrostatic protection layer, the functional wiring is electrically connected to the fan-out wiring through the first side wiring, and the first side wiring is at least located on a side of the substrate; The first structure includes a metal portion, the metal portion is located on a side of the substrate away from the electrostatic protection layer, and the metal portion is arranged on the same layer as the fan-out wiring.

3. The display panel according to claim 2, characterized in that: The substrate has at least one wiring area on a side away from the electrostatic protection layer, the wiring area includes a fan-out area and a non-fan-out area, and the fan-out wiring is located in the fan-out area; The non-fan-out region includes a first non-fan-out region, and the metal portion includes a first metal portion, and the first metal portion is located in the first non-fan-out region.

4. The display panel according to claim 3, characterized in that: The substrate comprises a first edge extending along a first direction and a second edge extending along a second direction, the first direction intersects with the second direction, and at least part of the first side edge routing is electrically connected to the fan-out routing on one side of the first edge; The first non-fan-out area and the fan-out area are arranged along the first direction, and the first non-fan-out area is adjacent to the second edge.

5. The display panel according to claim 4, characterized in that: The wiring area includes a first wiring area, and the first wiring area includes at least two fan-out areas arranged along the first direction; In the first wiring area, the non-fan-out area further includes at least one second non-fan-out area, the second non-fan-out area is located between adjacent fan-out areas, and dummy metal is disposed in the second non-fan-out area.

6. The display panel according to claim 3, characterized in that: The first metal portion includes a plurality of first wirings, the plurality of first wirings are electrically connected to a second wiring, and the second wiring is connected to a first pin.

7. The display panel according to claim 6, characterized in that: The second wiring extends from between the first wiring and the fan-out wiring to be electrically connected to the first pin.

8. The display panel according to claim 2, characterized in that: The substrate comprises a first edge extending along a first direction and a second edge extending along a second direction, the first direction intersects with the second direction, and at least part of the first side edge routing is electrically connected to the fan-out routing on one side of the first edge; The substrate has a fan-out area on one side away from the electrostatic protection layer, and the fan-out wiring is located in the fan-out area; The metal portion includes a second metal portion, the second metal portion is adjacent to the second edge, and the second metal portion is not aligned with the fan-out region along the first direction.

9. The display panel according to claim 2, characterized in that: The substrate includes a first edge; The substrate also includes a connecting portion, which is located on a side of the substrate close to the electrostatic protection layer and adjacent to the first edge, wherein the functional wiring is electrically connected to the connecting portion, and at least part of the first side wiring is led out from the connecting portion and extends from the side where the first edge is located to be electrically connected to the metal portion.

10. The display panel according to claim 2, characterized in that: The display panel further includes a second structure, wherein the second structure is at least located on a side of the metal portion away from the electrostatic protection layer; The electrostatic conductive layer and / or the metal part are also connected to the second structure via a first conductive connection structure.

11. The display panel according to claim 10, characterized in that: The second structure includes at least one of a heat dissipation structure, a support structure, a back plate and a frame.

12. The display panel according to claim 1, characterized in that: The substrate comprises a substrate, an electrostatic ring, a second side wiring and a first connecting wire; The electrostatic ring is located on a side of the substrate close to the electrostatic protection layer and extends around the edge of the substrate, the first connecting line is located on a side of the substrate away from the electrostatic protection layer and is electrically connected to the second pin, and the electrostatic ring is connected to the first connecting line through the second side wiring, and the second side wiring is at least located on the side of the substrate.

13. The display panel according to claim 12, characterized in that: The substrate further comprises a functional routing, a first side routing and a fan-out routing; The functional wiring is located on a side of the substrate close to the electrostatic protection layer, the fan-out wiring is located on a side of the substrate away from the electrostatic protection layer, the functional wiring is connected to the fan-out wiring through the first side wiring, and the first side wiring is at least located on a side of the substrate; Among them, the first structure includes a metal part, the metal part is located on a side of the substrate away from the electrostatic protection layer, and the metal part is arranged in the same layer as the fan-out wiring, and the first connecting line extends between the metal part and the fan-out wiring to be electrically connected to the second pin.

14. The display panel according to claim 13, characterized in that: The metal portion is electrically connected to the first pin; The voltage provided by the driving structure to the first pin is greater than the voltage provided by the driving structure to the second pin.

15. The display panel according to claim 12, characterized in that: The first structure is electrically isolated from the electrostatic ring.

16. The display panel according to claim 1, characterized in that: The substrate comprises a substrate, a functional wiring, a first side wiring and a fan-out wiring; The functional wiring is located on a side of the substrate close to the electrostatic protection layer, the fan-out wiring is located on a side of the substrate away from the electrostatic protection layer, the functional wiring is electrically connected to the fan-out wiring through the first side wiring, and the first side wiring is at least located on a side of the substrate; The first structure includes a first substructure, and the first substructure is located at a side of the fan-out trace away from the substrate.

17. The display panel according to claim 16, characterized in that: The first substructure includes at least one of a heat dissipation structure, a support structure and a back plate.

18. The display panel according to claim 16, characterized in that: The electrostatic conductive layer is connected to the first substructure via a second conductive connection structure, wherein a portion of the second conductive connection structure connected to the electrostatic conductive layer is located on a side of the electrostatic conductive layer away from the substrate.

19. The display panel according to claim 18, characterized in that: The electrostatic conductive layer includes a first section, the first section is located on a side of the substrate, and a portion of the second conductive connection structure is also located on a side of the first section away from the substrate.

20. The display panel according to claim 18, characterized in that: The second conductive connection structure includes copper foil.

21. The display panel according to claim 1, characterized in that: The sheet resistance of the electrostatic protection layer is greater than or equal to 10 4 Ohm / square and less than or equal to 10 9 Ohm / sq.

22. 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 Ohm / square and less than or equal to 10 9 Ohm / sq.

23. The display panel according to claim 1, characterized in that: The sheet resistance of the electrostatic conductive layer is smaller than the sheet resistance of the electrostatic protection layer.

24. The display panel according to claim 1, characterized in that: The edge portion of the electrostatic protection layer protrudes from the substrate, and the electrostatic conductive layer is at least connected to the protruding portion of the electrostatic protection layer.

25. The display panel according to claim 24, characterized in that: The electrostatic protection layer comprises a first surface away from the substrate, a second surface close to the substrate, and a first side surface, wherein along the direction from the first surface to the second surface, the first side surface is inclined toward the center of the electrostatic protection layer; The electrostatic conductive layer is connected to the first side surface.

26. The display panel according to claim 24, characterized in that: The display panel further includes a side filling layer, and the side filling layer is located between the electrostatic conductive layer and the substrate.

27. The display panel according to claim 1, characterized in that: Part of the electrostatic conductive layer is also located on a side of the electrostatic protection layer away from the substrate.

28. The display panel according to claim 1, characterized in that: The substrate comprises a substrate, a functional wiring, a first side wiring and a fan-out wiring; The functional wiring is located on a side of the substrate close to the electrostatic protection layer, the fan-out wiring is located on a side of the substrate away from the electrostatic protection layer, the functional wiring is connected to the fan-out wiring through the first side wiring, and the first side wiring is at least located on a side of the substrate; The display panel further includes a side encapsulation layer, and the side encapsulation layer is at least located on a side surface of the substrate and covers the first side wiring.

29. The display panel according to claim 28, characterized in that: The sheet resistance of the side encapsulation layer is greater than 10 9 Ohm / sq.

30. The display panel according to claim 1, characterized in that: The electrostatic protection layer includes at least one of an anti-fingerprint layer, an anti-glare layer, and an anti-reflection layer.

31. The display panel according to claim 1, characterized in that: The substrate comprises a substrate and a fan-out wiring, wherein the fan-out wiring is located on a side of the substrate away from the electrostatic protection layer; The display panel further comprises a protective layer, at least a portion of which is located on a side of the fan-out wiring away from the electrostatic protection layer; The substrate has a binding area on a side away from the electrostatic protection layer, and the protection layer has a first hollowing out, wherein the first hollowing out exposes the binding area.

32. The display panel according to claim 31, characterized in that: The first structure includes a metal portion, the metal portion is located on a side of the substrate away from the electrostatic protection layer, and the metal portion is arranged on the same layer as the fan-out wiring; The portion of the protective layer is also located on a side of the metal portion away from the electrostatic protection layer; The protection layer further has a second hollowing out, and the second hollowing out exposes a region of the metal portion for connecting with the electrostatic conductive layer.

33. The display panel according to claim 31, characterized in that: The protective layer is formed by a silk screen printing process.

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

35. 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.

36. The display panel according to claim 1, characterized in that: The display panel further comprises a light shielding layer, wherein the light shielding layer is located between the electrostatic protection layer and the substrate; And / or, the display panel further includes an ink layer, and the ink layer is located between the electrostatic protection layer and the substrate.

37. The display panel according to claim 1, characterized in that: The display panel further includes a display area and a shift register, and at least a portion of the shift register is located in the display area.

38. The display panel according to claim 1, characterized in that: The substrate comprises an array substrate and a light emitting diode located at one side of the array substrate.

39. A display device, characterized in that: Comprising the display panel as described in any one of claims 1 to 38.

40. A splicing display device, characterized in that: comprising at least two display panels according to any one of claims 1 to 38; The display panel has a splicing side, the splicing side is a side of the display panel spliced ​​with an adjacent display panel, and at least part of the display panel further includes a non-splicing side, the display panel is not spliced ​​with other display panels on the non-splicing side; Among them, for at least part of the display panel, 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 part of the display panel, the electrostatic conductive layer in the display panel is at least located on the non-splicing side of the display panel.

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