Display substrate and display device

Abstract

The utility model provides a display substrate and a display device, which relate to the technical field of display and are used for reducing the probability of static risk of display products. The display substrate comprises a substrate body, a signal transmission line and an electrostatic discharge line, wherein the signal transmission line and the electrostatic discharge line are arranged on the substrate body. The signal transmission line comprises a transmission line main body and at least one transmission line tip coupled with the transmission line main body; the electrostatic discharge line comprises a discharge line main body and at least one discharge line tip coupled with the discharge line main body; and the orthographic projection of the tip part of the release line tip on the substrate is opposite to the orthographic projection of the tip part of the corresponding transmission line tip on the substrate.

Description

Technical Field

[0001] The utility model relates to the field of display technology, in particular to a display substrate and a display device. Background Art

[0002] With the continuous development of display technology, there are more and more types of display products and their application fields are becoming more and more extensive. In order to meet the needs of more application scenarios, the size of display products continues to increase, and the length of the signal lines in the corresponding display products has also become longer, which leads to an increase in the risk of static electricity in display products. This static electricity risk refers to the fact that the static electricity generated in the display product cannot be effectively released, which affects the yield of the display product. Utility Model Content

[0003] The utility model aims to provide a display substrate and a display device, which are used to reduce the probability of static electricity risk generated by display products.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A first aspect of the utility model provides a display substrate, comprising: a base substrate, and a signal transmission line and an electrostatic release line arranged on the base substrate;

[0006] The signal transmission line includes a transmission line body and at least one transmission line tip coupled to the transmission line body; the electrostatic release line includes a release line body and at least one release line tip coupled to the release line body; the orthographic projection of the tip of the release line tip on the substrate is opposite to the orthographic projection of the corresponding tip of the transmission line tip on the substrate.

[0007] Optionally, the signal transmission line and / or the electrostatic release line further comprises at least two compensation tips; each of the compensation tips is coupled to the transmission line body or the release line body;

[0008] The at least two compensating tips are divided into at least one compensating group, each compensating group includes two compensating tips, and the tips of the two compensating tips are arranged opposite to each other.

[0009] Optionally, the electrostatic release line includes at least one group of compensation groups, in which a first compensation tip is coupled to a first release line tip in the electrostatic release line, and a second compensation tip is coupled to a second release line tip in the electrostatic release line, the first release line tip and the second release line tip are arranged along a first direction, and the tip of the first compensation tip is opposite to the tip of the second compensation tip along the first direction.

[0010] Optionally, the third release line tip in the electrostatic release line is located between the first release line tip and the second release line tip along the first direction, the length of the third release line tip is less than the length of the first release line tip and the length of the second release line tip, and the tip of the third release line tip faces the tip of the first compensation tip and the tip of the second compensation tip.

[0011] Optionally, the signal transmission line includes a first transmission line tip, a third transmission line tip, and a second transmission line tip sequentially arranged along a first direction; an orthographic projection of a tip of the first transmission line tip on the substrate substrate is opposite to an orthographic projection of a tip of the corresponding first release line tip on the substrate substrate; an orthographic projection of a tip of the second transmission line tip on the substrate substrate is opposite to an orthographic projection of a tip of the corresponding second release line tip on the substrate substrate;

[0012] The length of the third transmission line tip is greater than the length of the first transmission line tip and the length of the second transmission line tip, and the orthographic projection of the tip of the third transmission line tip on the substrate is opposite to the orthographic projection of the corresponding tip of the third release line tip on the substrate.

[0013] Optionally, the signal transmission line includes at least one group of compensation groups, and in at least one compensation group, a first compensation tip is coupled to a first transmission line tip in the signal transmission line, and a second compensation tip is coupled to a second transmission line tip in the signal transmission line, the first transmission line tip and the second transmission line tip are arranged along a first direction, and a tip of the first compensation tip is opposite to a tip of the second compensation tip along the first direction.

[0014] Optionally, the transmission line body comprises a first body portion and a second body portion coupled to each other, the first body portion extends along a first direction, the second body portion extends along a second direction, and the second direction intersects with the first direction;

[0015] Each transmission line tip included in the signal transmission line is coupled to the first main body portion respectively;

[0016] The signal transmission line includes at least one compensation group. In at least one compensation group, a first compensation tip is coupled to a transmission line tip in the signal transmission line, and a second compensation tip is coupled to the second main body portion. The transmission line tip and the second main body portion are arranged along a first direction, and a tip of the first compensation tip is opposite to a tip of the second compensation tip along the first direction.

[0017] Optionally, the display substrate further includes a gate metal layer, a gate insulating layer, an active layer and a source-drain metal layer stacked in sequence in a direction away from the base substrate; the signal transmission line is arranged in the same layer and material as the gate metal layer, and the electrostatic release line is arranged in the same layer and material as the source-drain metal layer.

[0018] Optionally, the display substrate further comprises a passivation layer, an organic film layer and a pixel electrode layer which are sequentially stacked in a direction away from the base substrate; the source-drain metal layer is located between the passivation layer and the base substrate;

[0019] The display substrate further comprises an electronic paper film layer, and the electronic paper film layer is located on a side of the pixel electrode layer facing away from the base substrate.

[0020] Optionally, an orthographic projection of the electrostatic release line on the base substrate at least partially overlaps with an orthographic projection of the electronic paper film layer on the base substrate.

[0021] Optionally, the signal transmission line includes a gate line and a data line.

[0022] Based on the technical solution of the above-mentioned display substrate, a second aspect of the utility model provides a display device, comprising the above-mentioned display substrate.

[0023] In the technical solution provided by the utility model, the signal transmission line is arranged to include at least one transmission line tip, and the electrostatic release line includes at least one release line tip, and the orthographic projection of the tip of the release line tip on the substrate is opposite to the orthographic projection of the corresponding tip of the transmission line tip on the substrate; based on the tip discharge principle, the static electricity generated on the signal transmission line can be discharged to the release line tip through the transmission line tip, and the static electricity can be released through the electrostatic release line, thereby effectively reducing the probability of static electricity risk in the display product. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0025] Figure 1 It is a planar schematic diagram of the position of the via in the electrostatic ring in the related art;

[0026] Figure 2 For along Figure 1 Schematic diagram of the cross section along the D1D2 direction;

[0027] Figure 3 A first structural schematic diagram of a signal transmission line and an electrostatic release line provided in an embodiment of the utility model;

[0028] Figure 4 for Figure 3 Schematic diagram of the cross section along the B1B2 direction;

[0029] Figure 5 for Figure 3 Schematic diagram of the cross section along the C1C2 direction;

[0030] Figure 6 A second structural schematic diagram of a signal transmission line and an electrostatic release line provided by an embodiment of the utility model;

[0031] Figure 7 A schematic plan view of a display substrate provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0032] In order to further illustrate the display substrate and the display device provided by the embodiments of the present invention, a detailed description is given below in conjunction with the accompanying drawings.

[0033] See also Figures 3 to 7 , the embodiment of the utility model provides a display substrate, comprising: a base substrate 10, and a signal transmission line 20 and an electrostatic release line 30 arranged on the base substrate 10;

[0034] The signal transmission line 20 includes a transmission line body 201 and at least one transmission line tip 202 coupled to the transmission line body 201; the electrostatic release line 30 includes a release line body 301 and at least one release line tip 302 coupled to the release line body 301; the orthographic projection of the tip of the release line tip 302 on the substrate 10 is opposite to the orthographic projection of the corresponding tip of the transmission line tip 202 on the substrate 10.

[0035] Exemplarily, the display substrate includes a display area AA and a peripheral area located around the display area AA, the signal transmission line 20 can extend from the display area AA to the peripheral area, and the electrostatic release line 30 is located in the peripheral area, but not limited to this. Exemplarily, the signal transmission line 20 includes a gate line GA, a data line DA, etc., but not limited to this. The gate line GA is used to transmit a scan signal, and the data line DA is used to transmit a data signal.

[0036] Exemplarily, the signal transmission line 20 and the electrostatic release line 30 are arranged in different layers, but not limited thereto.

[0037] Exemplarily, the signal transmission line 20 includes the transmission line body 201 and the transmission line tip 202 formed as an integrated structure, but is not limited thereto. For example, the signal transmission line 20 includes a plurality of transmission line tips 202, the plurality of transmission line tips 202 are arranged in sequence along a first direction, and the plurality of transmission line tips 202 are coupled to the transmission line body 201 respectively.

[0038] Exemplarily, the electrostatic release line 30 includes the release line body 301 and the release line tip 302 formed as an integrated structure, but is not limited thereto. For example, the electrostatic release line 30 includes a plurality of release line tips 302, the plurality of release line tips 302 are arranged in sequence along a first direction, and the plurality of release line tips 302 are coupled to the release line body 301 respectively.

[0039] Exemplarily, the release line tip 302 corresponds one-to-one with the transmission line tip 202, and the orthographic projection of the tip of the release line tip 302 on the base substrate 10 is opposite to the orthographic projection of the corresponding tip of the transmission line tip 202 on the base substrate 10, but is not limited to this.

[0040] According to the specific structure of the above-mentioned display substrate, in the display substrate provided by the embodiment of the utility model, the signal transmission line 20 is arranged to include at least one transmission line tip 202, and the electrostatic release line 30 includes at least one release line tip 302, and the tip of the release line tip 302 is projected on the base substrate 10, which is opposite to the corresponding tip of the transmission line tip 202 on the base substrate 10; so that the static electricity generated on the signal transmission line 20 based on the tip discharge principle can be discharged to the release line tip 302 through the transmission line tip 202, and the static electricity is released through the electrostatic release line 30, thereby effectively reducing the probability of static electricity risk in the display product.

[0041] See also Figures 3 to 7 In some embodiments, the signal transmission line 20 and / or the electrostatic release line 30 further comprises at least two compensation tips 40; each of the compensation tips 40 is coupled to the transmission line body 201 or the release line body 301;

[0042] The at least two compensating tips 40 are divided into at least one compensating group Z1 , and each compensating group Z1 includes two compensating tips 40 , and the tips of the two compensating tips 40 are arranged opposite to each other.

[0043] Exemplarily, the signal transmission line 20 further includes at least two compensation tips 40, each of which is coupled to the transmission line body 201; and / or, the electrostatic release line 30 further includes at least two compensation tips 40; each of which is coupled to the release line body 301.

[0044] Exemplarily, the at least two compensation tips 40 included in the signal transmission line 20 are divided into at least one compensation group Z1 , and each compensation group Z1 includes two compensation tips 40 , and the tips of the two compensation tips 40 are arranged opposite to each other.

[0045] Exemplarily, the at least two compensation tips 40 included in the electrostatic release line 30 are divided into at least one compensation group Z1, and each compensation group Z1 includes two compensation tips 40, and the tips of the two compensation tips 40 are arranged opposite to each other.

[0046] It is worth noting that as the size and resolution of display products become larger, the risk of static electricity also increases; when the static electricity of all rows of pixels in the display product is released to the static electricity release line 30, there will be a problem of excessive static electricity charge on the static electricity release line 30, resulting in tip discharge between the static electricity release line 30 and the signal transmission line 20 again, which will lead to incomplete static electricity release or reverse release, affecting the normal operation of the display area AA.

[0047] In the display substrate provided by the above embodiment, the electrostatic release line 30 is also provided to include at least two compensation tips 40, and the at least two compensation tips 40 are divided into at least one compensation group Z1, and each compensation group Z1 includes two compensation tips 40, and the tips of the two compensation tips 40 are arranged relative to each other; so that when the electrostatic charge released on each row of signal transmission lines 20 accumulates on the electrostatic release line 30, a large amount of electrostatic charge can be released for a second time in the compensation tips 40 included in the electrostatic release line 30, which is equivalent to diluting the electrostatic charge of each row of signal transmission lines 20 after it is introduced into the electrostatic release line 30, thereby greatly reducing the electrostatic charge accumulated on the electrostatic release line 30 and avoiding the risk of reintroducing the electrostatic charge into the display area AA.

[0048] In the display substrate provided by the above embodiment, the signal transmission line 20 is provided to also include at least two compensation tips 40, and the at least two compensation tips 40 are divided into at least one compensation group Z1, each compensation group Z1 includes two compensation tips 40, and the tips of the two compensation tips 40 are arranged opposite to each other; so that when a large amount of electrostatic charge accumulated on the electrostatic release line 30 is released in the reverse direction, the electrostatic charge can be released for a second time in the compensation tip 40 included in the signal transmission line 20 before entering the display area AA, which is equivalent to diluting the electrostatic charge when the electrostatic charge is released in the reverse direction, thereby greatly reducing the electrostatic charge accumulated on the electrostatic release line 30 and avoiding the risk of reintroducing the electrostatic charge into the display area AA.

[0049] like Figures 3 to 5 As shown, in some embodiments, the electrostatic release line 30 includes at least one group of the compensation group Z1. In the same compensation group Z1, the first compensation tip 401 is coupled to the first release line tip 302a in the electrostatic release line 30, and the second compensation tip 402 is coupled to the second release line tip 302b in the electrostatic release line 30. The first release line tip 302a and the second release line tip 302b are arranged along a first direction, and the tip of the first compensation tip 401 is opposite to the tip of the second compensation tip 402 along the first direction.

[0050] Exemplarily, the static electricity release line 30 includes at least two compensation groups Z1, and the at least two compensation groups Z1 are arranged in sequence along the first direction.

[0051] Exemplarily, the release line body 301 extends along the first direction, and the electrostatic release line 30 includes a plurality of release line tips 302 arranged in sequence along the first direction, and the plurality of release line tips 302 are respectively coupled to the release line body 301. The plurality of release line tips 302 include a plurality of first release line tips 302a and a plurality of second release line tips 302b, and the plurality of release line tips 302 are divided into a plurality of tip groups Z2, and each tip group Z2 includes a first release line tip 302a and a second release line tip 302b arranged along the first direction.

[0052] Exemplarily, in the same compensation group Z1, the first compensation tip 401 is coupled to the first release line tip 302a in the tip group Z2 corresponding to the compensation group Z1, and the second compensation tip 402 is coupled to the second release line tip 302b in the tip group corresponding to the compensation group Z1, and the first compensation tip 401 and the second compensation tip 402 are both located between the first release line tip 302a and the second release line tip 302b, and the tip of the first compensation tip 401 is opposite to the tip of the second compensation tip 402 along the first direction.

[0053] Exemplarily, the compensation group Z1 corresponds to the tip group Z2 one by one; or, part of the tip group Z2 corresponds to the compensation group Z1.

[0054] The above-mentioned arrangement enables that when the electrostatic charges released on each row of signal transmission lines 20 accumulate on the electrostatic release line 30, a large amount of electrostatic charges can be released for a second time within the compensation tip included in the electrostatic release line 30, which is equivalent to diluting the electrostatic charges on each row of signal transmission lines 20 after they are introduced into the electrostatic release line 30, thereby greatly reducing the electrostatic charges accumulated on the electrostatic release line 30 and avoiding the risk of reintroducing the electrostatic charges into the display area AA.

[0055] like Figures 3 to 5 As shown, in some embodiments, the third release line tip 302c in the electrostatic release line 30 is located between the first release line tip 302a and the second release line tip 302b along the first direction, the length of the third release line tip 302c is less than the length of the first release line tip 302a and the length of the second release line tip 302b, and the tip of the third release line tip 302c faces the tip of the first compensation tip 401 and the tip of the second compensation tip 402.

[0056] Exemplarily, the electrostatic release line 30 includes a plurality of release line tips 302 arranged in sequence along the first direction, the plurality of release line tips 302 include a plurality of third release line tips 302c, the plurality of release line tips 302 are divided into a plurality of tip groups Z2, each tip group Z2 includes a first release line tip 302a, a third release line tip 302c and a second release line tip 302b arranged in sequence along the first direction.

[0057] The above configuration further increases the secondary release capability of the electrostatic release line 30 to static electricity, further dilutes the electrostatic charge, thereby greatly reducing the electrostatic charge accumulated on the electrostatic release line 30 and avoiding the risk of reintroducing the electrostatic charge into the display area AA.

[0058] like Figures 3 to 5As shown, in some embodiments, the signal transmission line 20 includes a first transmission line tip 202a, a third transmission line tip 202c, and a second transmission line tip 202b arranged in sequence along a first direction; the orthographic projection of the tip of the first transmission line tip 202a on the base substrate 10 is opposite to the orthographic projection of the corresponding tip of the first release line tip 302a on the base substrate 10; the orthographic projection of the tip of the second transmission line tip 202b on the base substrate 10 is opposite to the orthographic projection of the corresponding tip of the second release line tip 302b on the base substrate 10;

[0059] The length of the third transmission line tip 202c is greater than the length of the first transmission line tip 202a and the length of the second transmission line tip 202b, and the orthographic projection of the tip of the third transmission line tip 202c on the substrate 10 is opposite to the orthographic projection of the tip of the corresponding third release line tip 302c on the substrate 10.

[0060] Exemplarily, the tip of the third transmission line tip 202c and the tip of the third release line tip 302c opposite to its orthographic projection are both oriented toward the same tip of the first compensation tip 401 and the tip of the second compensation tip 402.

[0061] The above configuration further enhances the ability of the signal transmission line 20 to release static electricity to the static electricity release line 30, thereby more effectively reducing the probability of static electricity risk generated by the display product.

[0062] like Figure 6 As shown, in some embodiments, the signal transmission line 20 includes at least one group of the compensation group Z1. In at least one compensation group Z1, the first compensation tip 401 is coupled to the first transmission line tip 202a in the signal transmission line 20, and the second compensation tip 402 is coupled to the second transmission line tip 202b in the signal transmission line 20. The first transmission line tip 202a and the second transmission line tip 202b are arranged along a first direction, and the tip of the first compensation tip 401 is opposite to the tip of the second compensation tip 402 along the first direction.

[0063] Exemplarily, the signal transmission line 20 includes at least two compensation groups Z1 , and the at least two compensation groups Z1 are arranged in sequence along the first direction.

[0064] The signal transmission line 20 includes a plurality of transmission line tips sequentially arranged along the first direction, and the plurality of transmission line tips are respectively coupled to the transmission line body 201. The plurality of transmission line tips include a plurality of first transmission line tips 202a and a plurality of second transmission line tips 202b, and the plurality of transmission line tips are divided into a plurality of tip groups, each of which includes a first transmission line tip 202a and a second transmission line tip 202b arranged along the first direction.

[0065] Exemplarily, in the same compensation group Z1, the first compensation tip 401 is coupled to the first transmission line tip 202a in the tip group corresponding to the compensation group Z1, and the second compensation tip 402 is coupled to the second transmission line tip 202b in the tip group corresponding to the compensation group Z1, and the first compensation tip 401 and the second compensation tip 402 are both located between the first transmission line tip 202a and the second transmission line tip 202b, and the tip of the first compensation tip 401 is opposite to the tip of the second compensation tip 402 along the first direction.

[0066] Exemplarily, the compensation group Z1 corresponds to the tip group one-to-one; or, part of the tip group corresponds to the compensation group Z1.

[0067] The above-mentioned arrangement enables a large amount of electrostatic charge accumulated on the electrostatic release line 30 to be released in the reverse direction. The electrostatic charge can be released for a second time in the compensation tip included in the signal transmission line 20 before entering the display area AA, which is equivalent to diluting the electrostatic charge when the electrostatic charge is released in the reverse direction, thereby greatly reducing the electrostatic charge accumulated on the electrostatic release line 30 and avoiding the risk of reintroducing the electrostatic charge into the display area AA.

[0068] like Figure 6 As shown, in some embodiments, the transmission line body 201 includes a first body portion 201a and a second body portion 201b coupled to each other, the first body portion 201a extends along a first direction, the second body portion 201b extends along a second direction, and the second direction intersects the first direction; each transmission line tip included in the signal transmission line 20 is coupled to the first body portion 201a respectively;

[0069] The signal transmission line 20 includes at least one group of compensation groups Z1. In at least one compensation group Z1, the first compensation tip 401 is coupled to the transmission line tip 202 in the signal transmission line 20, and the second compensation tip 402 is coupled to the second main body part 201b. The transmission line tip 202 and the second main body part 201b are arranged along a first direction, and the tip of the first compensation tip 401 is opposite to the tip of the second compensation tip 402 along the first direction.

[0070] Exemplarily, the first main body portion 201a and the second main body portion 201b are formed into an integral structure, but not limited thereto.

[0071] Exemplarily, the signal transmission line 20 includes two compensation groups Z1; in one compensation group Z1, the first compensation tip 401 is coupled to the first transmission line tip 202a in the signal transmission line 20, and the second compensation tip 402 is coupled to the second transmission line tip 202b in the signal transmission line 20; in another compensation group Z1, the first compensation tip 401 is coupled to the transmission line tip 202 in the signal transmission line 20, and the second compensation tip 402 is coupled to the second main body part 201b.

[0072] The above-mentioned setting method enables a large amount of electrostatic charge accumulated on the electrostatic release line 30 to be released in the reverse direction. The electrostatic charge can be better released for a second time in the compensation tip included in the signal transmission line 20 before entering the display area AA, which is equivalent to further diluting the electrostatic charge when the electrostatic charge is released in the reverse direction, thereby greatly reducing the electrostatic charge accumulated on the electrostatic release line 30 and avoiding the risk of reintroducing the electrostatic charge into the display area AA.

[0073] like Figure 4 and Figure 5 As shown, in some embodiments, the display substrate also includes a gate metal layer, a gate insulation layer GI, an active layer ACT and a source-drain metal layer stacked in sequence in a direction away from the base substrate 10; the signal transmission line 20 is arranged in the same layer and material as the gate metal layer, and the electrostatic release line 30 is arranged in the same layer and material as the source-drain metal layer.

[0074] Exemplarily, the display substrate includes a gate metal layer, a gate insulating layer, an active layer, a source-drain metal layer, a passivation layer, an organic film layer and a pixel electrode layer which are stacked in sequence in a direction away from the base substrate 10; for example: the gate metal layer, the gate insulating layer, the active layer and the source-drain metal layer can be used to form a transistor structure in the display substrate; the pixel electrode layer can be used to form a pixel electrode in the display substrate.

[0075] The signal transmission line 20 is arranged in the same layer and material as the gate metal layer, and the electrostatic release line 30 is arranged in the same layer and material as the source-drain metal layer, so that the signal transmission line 20 formed by the gate metal layer can discharge through the tip with the electrostatic release line 30 formed by the source-drain metal layer, and the discharge process can break through the gate insulating layer and the active layer located between the gate metal layer and the source-drain metal layer.

[0076] Exemplarily, the display substrate further includes an electronic paper film layer, and the electronic paper film layer is located on a side of the pixel electrode layer facing away from the base substrate 10 .

[0077] When the display substrate also includes an electronic paper film layer, an electronic paper display product is formed, which is also called an electronic ink screen. It has the advantages of bistable state and low power consumption. Since it does not require a backlight source, it relies on reflective display to refract ambient light into the eyes of the viewer, which is very similar to actual paper. It has gradually become the choice of most people in the industry.

[0078] It is worth noting that Figure 7 As shown, the electronic paper display product is mainly realized by the EPD substrate (i.e. the part of the above-mentioned display substrate except the electronic paper film layer) and the electronic paper film layer (EPL) attached thereto. The electronic paper film layer is connected to a fixed voltage through the silver glue dots 61 designed on the substrate, and this voltage is used to form a voltage difference with the pixel electrode voltage on the substrate, thereby driving the movement of particles in the electronic paper film layer. When the picture is refreshed, the particles in the electronic paper film layer will remain in the refreshed state when the power is turned off, thereby realizing a bistable low-power display. It can be seen that the normal operation of the paper film is essential for electronic paper display. It should be noted that Figure 7 The figure also shows a driving chip IC, a discharge area 62, a display edge protection area 63 and a common electrode signal line 64.

[0079] like Figure 1 and Figure 2 As shown, for the EPD substrate, the gate line and data line in the display area are both long signal transmission lines made of metal. As the resolution and size increase, the length of the signal transmission line also increases, which will cause static electricity risks. At present, the method to solve this problem in the relevant technology is to add an electrostatic ring after the signal transmission line extends out of the display area to induce static electricity. In the design of the electrostatic ring, a transfer film layer 50 set with the same layer and material as the pixel electrode layer is required to couple the gate metal layer Gate and the source and drain metal layer SD. Figure 2 The figure also illustrates a gate insulating layer GI, a passivation layer PVX and an organic film layer Resin.

[0080] Since the voltages on the gate line GA and the data line DA jump greatly, it is easy to burn the paper film after a long period of operation, resulting in the problem that the electronic paper film layer cannot display normally. Since the film layer set with the same layer and material as the pixel electrode layer is very close to the electronic paper film layer, when the electronic paper film layer is burned, the Cl (chlorine) element precipitated will corrode the connecting vias between the transfer film layer and the gate metal layer and the source and drain metal layer, such as: Via1, Via2, resulting in abnormal signal output and causing defects. In order to avoid this risk, the measures usually taken in the relevant technology are to design the electrostatic ring outside the area covered by the electronic paper film layer and ensure the minimum safety distance; although this method can avoid the above risks, it will bring the problem of a wider border width of the display product.

[0081] like Figure 7 As shown, in some embodiments, the signal transmission line 20 is arranged in the same layer and material as the gate metal layer, and the electrostatic release line 30 is arranged in the same layer and material as the source and drain metal layer; the orthographic projection of the electrostatic release line 30 on the base substrate 10 at least partially overlaps with the orthographic projection of the electronic paper film layer 60 on the base substrate 10.

[0082] In the display substrate provided by the above embodiment, the signal transmission line 20 and the electrostatic release line 30 are discharged through the tip, and do not need to be coupled through a transition film layer like an electrostatic ring. Moreover, the signal transmission line 20 and the gate metal layer are arranged in the same layer and material, and the electrostatic release line 30 and the source and drain metal layer are arranged in the same layer and material; so that there is at least a passivation layer and an organic film layer between the signal transmission line 20 and the electrostatic release line 30 and the electronic paper film layer 60, so that the signal transmission line 20 and the electrostatic release line 30 are far away from the electronic paper film layer 60, avoiding the influence of the burning of the electronic paper film layer 60 on the signal transmission line 20 and the electrostatic release line 30. Therefore, in the display substrate provided by the above embodiment, it is possible to set the orthographic projection of the electrostatic release line 30 on the base substrate 10, which at least partially overlaps with the orthographic projection of the electronic paper film layer 60 on the base substrate 10, effectively saving the frame space and better realizing the narrow frame design.

[0083] An embodiment of the utility model further provides a display device, comprising the display substrate provided by the above embodiment.

[0084] It should be noted that the display device can be any product or component with a display function, such as a television, a monitor, a digital photo frame, a mobile phone, a tablet computer, etc., wherein the display device also includes a flexible circuit board, a printed circuit board and a backplane, etc.

[0085] In the display substrate provided in the above embodiment, the signal transmission line 20 is arranged to include at least one transmission line tip, and the electrostatic release line 30 includes at least one release line tip, and the tip of the release line tip is projected on the base substrate 10, which is opposite to the corresponding tip of the transmission line tip on the base substrate 10; so that the static electricity generated on the signal transmission line 20 can be discharged to the release line tip through the transmission line tip based on the tip discharge principle, and the static electricity can be released through the electrostatic release line 30, thereby effectively reducing the probability of static electricity risk in the display product.

[0086] Therefore, the display device provided by the embodiment of the present invention also has the above-mentioned beneficial effects when it includes the above-mentioned display substrate, which will not be described in detail here.

[0087] It should be noted that the signal line extends along a certain direction means that: the signal line includes a main part and a secondary part connected to the main part, the main part is a line, a line segment or a strip-shaped body, the main part extends along a certain direction, and the length of the main part extending along the certain direction is greater than the length of the secondary part extending along other directions.

[0088] It should be noted that the "same layer" in the embodiment of the utility model may refer to a film layer on the same structural layer. Or, for example, a film layer on the same layer may be a film layer for forming a specific pattern formed by the same film forming process, and then the film layer is patterned by the same mask through a single composition process to form a layer structure. Depending on the specific pattern, a single composition process may include multiple exposure, development or etching processes, and the specific pattern in the formed layer structure may be continuous or discontinuous. These specific patterns may also be at different heights or have different thicknesses.

[0089] It should be noted that each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the method embodiment, since it is basically similar to the product embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the product embodiment.

[0090] Unless otherwise defined, the technical terms or scientific terms used in this disclosure should be understood by people with ordinary skills in the field to which the utility model belongs. "First", "second" and similar words used in this disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect", "couple" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0091] It will be understood that when an element such as a layer, film, region, or substrate is referred to as being “on” or “under” another element, it can be “directly on” or “under” the other element or intervening elements may be present.

[0092] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0093] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A display substrate, characterized in that: include: A base substrate, and a signal transmission line and an electrostatic release line disposed on the base substrate; The signal transmission line includes a transmission line body and at least one transmission line tip coupled to the transmission line body; the electrostatic release line includes a release line body and at least one release line tip coupled to the release line body; the orthographic projection of the tip of the release line tip on the substrate is opposite to the orthographic projection of the corresponding tip of the transmission line tip on the substrate.

2. The display substrate according to claim 1, characterized in that: The signal transmission line and / or the electrostatic release line further comprises at least two compensation tips; each of the compensation tips is coupled to the transmission line body or the release line body; The at least two compensating tips are divided into at least one compensating group, each compensating group includes two compensating tips, and the tips of the two compensating tips are arranged opposite to each other.

3. The display substrate according to claim 2, characterized in that: The electrostatic release line includes at least one group of compensation groups. In the same compensation group, a first compensation tip is coupled to a first release line tip in the electrostatic release line, and a second compensation tip is coupled to a second release line tip in the electrostatic release line. The first release line tip and the second release line tip are arranged along a first direction, and the tip of the first compensation tip is opposite to the tip of the second compensation tip along the first direction.

4. The display substrate according to claim 3, characterized in that: The third release line tip in the electrostatic release line is located between the first release line tip and the second release line tip along the first direction, the length of the third release line tip is less than the length of the first release line tip and the length of the second release line tip, and the tip of the third release line tip faces the tip of the first compensation tip and the tip of the second compensation tip.

5. The display substrate according to claim 4, characterized in that: The signal transmission line comprises a first transmission line tip, a third transmission line tip and a second transmission line tip arranged in sequence along a first direction; the orthographic projection of the tip of the first transmission line tip on the substrate substrate is opposite to the orthographic projection of the corresponding tip of the first release line tip on the substrate substrate; the orthographic projection of the tip of the second transmission line tip on the substrate substrate is opposite to the orthographic projection of the corresponding tip of the second release line tip on the substrate substrate; The length of the third transmission line tip is greater than the length of the first transmission line tip and the length of the second transmission line tip, and the orthographic projection of the tip of the third transmission line tip on the substrate is opposite to the orthographic projection of the corresponding tip of the third release line tip on the substrate.

6. The display substrate according to claim 2, characterized in that: The signal transmission line includes at least one compensation group. In at least one compensation group, a first compensation tip is coupled to a first transmission line tip in the signal transmission line, and a second compensation tip is coupled to a second transmission line tip in the signal transmission line. The first transmission line tip and the second transmission line tip are arranged along a first direction, and a tip of the first compensation tip is opposite to a tip of the second compensation tip along the first direction.

7. The display substrate according to claim 2, characterized in that: The transmission line body comprises a first body portion and a second body portion coupled to each other, the first body portion extends along a first direction, the second body portion extends along a second direction, and the second direction intersects the first direction; Each transmission line tip included in the signal transmission line is coupled to the first main body portion respectively; The signal transmission line includes at least one compensation group. In at least one compensation group, a first compensation tip is coupled to a transmission line tip in the signal transmission line, and a second compensation tip is coupled to the second main body portion. The transmission line tip and the second main body portion are arranged along a first direction, and a tip of the first compensation tip is opposite to a tip of the second compensation tip along the first direction.

8. The display substrate according to any one of claims 1 to 7, characterized in that: The display substrate also includes a gate metal layer, a gate insulating layer, an active layer and a source-drain metal layer stacked in sequence in a direction away from the base substrate; the signal transmission line is arranged in the same layer and material as the gate metal layer, and the electrostatic release line is arranged in the same layer and material as the source-drain metal layer.

9. The display substrate according to claim 8, characterized in that: The display substrate further comprises a passivation layer, an organic film layer and a pixel electrode layer which are sequentially stacked in a direction away from the base substrate; the source-drain metal layer is located between the passivation layer and the base substrate; The display substrate further comprises an electronic paper film layer, and the electronic paper film layer is located on a side of the pixel electrode layer facing away from the base substrate.

10. The display substrate according to claim 9, characterized in that: The orthographic projection of the electrostatic release line on the base substrate at least partially overlaps with the orthographic projection of the electronic paper film layer on the base substrate.

11. The display substrate according to any one of claims 1 to 7, characterized in that: The signal transmission lines include gate lines and data lines.

12. A display device, characterized in that: The invention comprises the display substrate according to any one of claims 1 to 11.

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