Display substrate and display device

Abstract

The invention relates to the technical field of display, and discloses a display substrate and a display device.At least one data fan-out line of the display substrate comprises a first sub fan-out line and a second sub fan-out line which are electrically connected, and the orthographic projection of the first sub fan-out line on the display substrate and the orthographic projection of a bottom shading metal layer on the display substrate are not overlapped; one end of the data jumper wire is electrically connected with the first fan-out sub-line, and the other end of the data jumper wire is electrically connected with the corresponding second fan-out sub-line; the orthographic projection of the at least one data jumper wire or the at least one first sub fan-out wire on the display substrate is at least partially overlapped with the orthographic projection of the bottom shading metal layer on the display substrate, so that the data fan-out wire and the bottom shading metal layer are not overlapped any more; point discharge and even breakdown easily caused by overlapping of the conducting layers in the manufacturing process of the display panel are avoided, and the product yield of the display panel is improved.

Description

Technical Field

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

[0002] With the development of the information society, people's demand for display devices has increased, which has also promoted the rapid development of the display panel industry. Reducing costs, increasing product yield and improving product quality have become the focus of the OLED (Organic Light-Emitting Diode) display panel industry.

[0003] Generally, a display substrate includes a display area and a fan-out area, and there are multiple signal lines on the display area. The fan-out area is provided with fan-out lines, which are connected between the display controller and the signal lines. The fan-out lines are prone to electrostatic discharge (ESD) or even breakdown, causing the product yield of the display substrate to decrease, resulting in economic losses. Summary of the invention

[0004] The purpose of the present application is to provide a display substrate and a display device, aiming to solve the problem that the fan-out lines of the traditional display substrate are prone to static electricity or even breakdown.

[0005] In a first aspect, an embodiment of the present application provides a display substrate, the display substrate comprising a display area and a fan-out area, the fan-out area being located at one side of the display area;

[0006] Along the direction away from the display substrate, the display substrate sequentially includes a bottom light-shielding metal layer and a first metal layer;

[0007] The display area includes at least one data signal line, the fan-out area includes at least one data fan-out line, and the data signal line is electrically connected to the corresponding data fan-out line; wherein

[0008] The data fan-out line comprises a first sub-fan-out line and a second sub-fan-out line which are electrically connected, wherein the orthographic projections of the first sub-fan-out line and the second sub-fan-out line on the display substrate at least partially do not overlap with the orthographic projection of the bottom light-shielding metal layer on the display substrate; and

[0009] The display substrate also includes at least one data jumper line, one end of the data jumper line is electrically connected to the first sub-fan-out line, and the other end is electrically connected to the corresponding second sub-fan-out line, and the orthographic projection of at least one of the jumper lines or at least one of the second sub-fan-out lines on the display substrate at least partially overlaps with the orthographic projection of the bottom shading metal layer on the display substrate.

[0010] In some embodiments, the display substrate also includes a first metal layer, the first sub-fan-out line and the second sub-fan-out line are arranged in the first metal layer, the first sub-fan-out line is directly connected to the second sub-fan-out line, and the orthographic projections of the first sub-fan-out line and the second sub-fan-out line on the display substrate do not overlap with the orthographic projection of the bottom shading metal layer on the display substrate.

[0011] In some embodiments, the display substrate further includes a first insulating layer, and the first insulating layer is disposed between the bottom light-shielding metal layer and the data fan-out line.

[0012] In some embodiments, the display substrate also includes a first metal layer and a second metal layer, the first sub-fan-out line and the second sub-fan-out line are arranged in the first metal layer, the data jumper line is arranged in the second metal layer, and the distance between the data fan-out line and the bottom light-shielding metal layer in the thickness direction of the display substrate is smaller than the distance between the data jumper line and the bottom light-shielding metal layer in the thickness direction.

[0013] In some embodiments, the data fan-out line is located between the data jumper line and the bottom light-shielding metal layer, and the display substrate also includes a first insulating layer and a second insulating layer, the first insulating layer is arranged between the bottom light-shielding metal layer and the data fan-out line, and the second insulating layer is arranged between the data fan-out line and the data jumper line.

[0014] In some embodiments, the display substrate further includes a first metal layer, a second metal layer and a third metal layer, the first sub-fan-out line is arranged in the first metal layer, the data jumper line is arranged in the second metal layer, the second sub-fan-out line is arranged in the third metal layer, the distance between the first sub-fan-out line and the bottom light-shielding metal layer in the thickness direction of the display substrate is smaller than the distance between the second sub-fan-out line and the bottom light-shielding metal layer in the thickness direction, and the orthographic projection of the second sub-fan-out line on the display substrate at least partially overlaps with the orthographic projection of the bottom light-shielding metal layer on the display substrate.

[0015] In some embodiments, a distance between the first sub-fan-out line and the bottom light-shielding metal layer in a thickness direction of the display substrate is smaller than a distance between the data jumper line and the bottom light-shielding metal layer in the thickness direction.

[0016] In some embodiments, the display substrate also includes a first insulating layer and a second insulating layer, the first insulating layer is arranged between the bottom light-shielding metal layer and the first sub-fan-out line, and the second insulating layer is arranged between the bottom light-shielding metal layer and the second sub-fan-out line and between the bottom light-shielding metal layer and the data jumper line.

[0017] In some embodiments, the bottom light-shielding metal layer located in the fan-out region is used to connect a power signal line.

[0018] In a second aspect, an embodiment of the present application provides a display device, further comprising a display substrate as described above.

[0019] Compared with the prior art, the embodiments of the present application have the following beneficial effects: the data fan-out line of the display substrate is configured into two sections, namely a first sub-fan-out line and a second sub-fan-out line, and the orthographic projection of the first sub-fan-out line on the display substrate and the orthographic projection of the bottom light-shielding metal layer on the display substrate are configured not to overlap. When the data fan-out line formed by directly connecting the first sub-fan-out line and the second sub-fan-out line and the bottom light-shielding metal layer do not have enough spatial distance, a data jumper line or a second sub-fan-out line is used to connect the first sub-fan-out line, and the data jumper line or the second sub-fan-out line is used to overlap with the bottom light-shielding metal layer, thereby avoiding tip discharge or even breakdown due to overlap between the bottom light-shielding metal layer and the data fan-out line during the manufacturing process of the display substrate, thereby improving the product yield of the liquid crystal display substrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of a display substrate provided in one embodiment of the present application;

[0021] Figure 2 A schematic diagram of an orthographic projection of a bottom light-shielding metal layer of a fan-out line and a data fan-out line display substrate on a plane where the fan-out line is provided in an embodiment of the present application;

[0022] Figure 3 This is an embodiment of the present application. Figure 2 Cross-section view along the AA direction;

[0023] Figure 4 A schematic diagram of an orthographic projection of a bottom light-shielding metal layer of a fan-out line, a data fan-out line, and a data jumper line on a plane where a display substrate is located, provided in one embodiment of the present application;

[0024] Figure 5 This is an embodiment of the present application. Figure 4 Cross-section along the BB direction;

[0025] Figure 6 A schematic diagram of an orthographic projection of a bottom light-shielding metal layer of a fan-out line, a data fan-out line, and a data jumper line on a plane where a display substrate is located, provided in one embodiment of the present application;

[0026] Figure 7 This is an embodiment of the present application. Figure 6 Cross-section view in the CC direction;

[0027] Figure 8This is an embodiment of the present application. Figure 6 Cross-sectional view along CC direction. DETAILED DESCRIPTION

[0028] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0029] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] Figure 1 FIG. 1 shows a schematic structural diagram of a display substrate provided in an embodiment of the present application. Figure 2 The diagram shows an orthographic projection diagram of the bottom light shielding metal layer of the fan-out line and the data fan-out line provided in an embodiment of the present application on the plane where the display substrate is located. For the sake of convenience, only the part related to the present embodiment is shown, which is described in detail as follows:

[0032] See also Figures 1 to 8 In this embodiment, a display substrate 100 that can be applied to a display device (such as a smart phone, a tablet, a wearable device, etc.) includes a display area 110 and a fan-out area 120, and the fan-out area 120 is located on one side of the display area 110. In a direction away from the display substrate 100, the display substrate 100 includes a bottom shielding metal layer 130 (Bottom Shield Metal, BSM) and a first metal layer in sequence;

[0033] The display area 110 includes at least one data signal line 111, and the fan-out area 120 includes at least one data fan-out line 121. The data signal line 111 is electrically connected to the corresponding data fan-out line 121;

[0034] The data fan-out line 121 includes a first sub-fan-out line 121A and a second sub-fan-out line 121B that are electrically connected, and an orthographic projection of the first sub-fan-out line 121A on the display substrate 100 does not overlap with an orthographic projection of the bottom light-shielding metal layer 130 on the display substrate 100; and

[0035] The display substrate 100 further includes at least one data jumper 140, one end of which is electrically connected to the first sub-fan-out line 121A, and the other end of which is electrically connected to the corresponding second sub-fan-out line 121B. Figure 5 ) or at least one second sub-fan-out line 121B (see Figure 8 )'s orthographic projection on the display substrate 100 at least partially overlaps with the orthographic projection of the bottom light-shielding metal layer 130 on the display substrate 100 (hereinafter, the overlapping of the orthographic projections on the display substrate 100 will be referred to as overlap).

[0036] The display area 110 is the main body of the display substrate 100 and has a pixel circuit. The data signal line 111 is connected to the pixel circuit. One end of the data fan-out line 121 is connected to the corresponding data signal line 111, and the other end is connected to the display control circuit 200, such as a display controller.

[0037] The shape of the data fan-out line 121 can be a straight line, a curve, or a combination of a straight line and a curve, and the impedance of each data signal line 111 tends to be consistent. If the space distance between adjacent wires is close and overlaps, ESD is likely to occur at the overlap, resulting in dark lines, causing the product yield of the display substrate 100 to decrease. Therefore, the technical solution of the embodiment of the present application makes improvements on this:

[0038] In some data fan-out lines 121 in the fan-out area 120, when the first sub-fan-out line 121A and the second sub-fan-out line 121B are directly connected to form a data fan-out line 121 that overlaps with the bottom light shielding metal layer 130, the first sub-fan-out line 121A and the second sub-fan-out line 121B of the data fan-out line 121 are bridged by the data jumper line 140. Figure 4 and Figure 5 , allowing the data jumper line 140 to overlap with the bottom shading metal layer 130, so that the first sub-fan-out line 121A and the second sub-fan-out line 121B are completely staggered from the bottom shading metal layer 130, reducing the electrostatic risk between the two conductive layers in the fan-out area 120, thereby improving product yield and saving costs.

[0039] In some data fan-out lines 121 in the fan-out area 120, the data jumper line 140 and the bottom light shielding metal layer 130 may be partially overlapped, but the spatial distance of the overlapping area between the two can be increased. For example, the first sub-fan-out line 121A is completely staggered with the bottom light shielding metal layer 130 but is closer to the bottom light shielding metal layer 130 in the thickness direction of the display substrate 100, and the second sub-fan-out line 121B is switched to a metal layer that is farther away in the thickness direction of the display substrate 100. Please refer to Figure 6-Figure 8 , allowing the data jumper 140 to overlap with the bottom light-shielding metal layer 130, reducing the electrostatic risk between the two conductive layers in the fan-out area 120, thereby improving product yield and saving costs.

[0040] In the other data fan-out lines 121 in the fan-out area 120, when the first sub-fan-out line 121A and the second sub-fan-out line 121B are directly connected to form a data fan-out line 121 and the bottom light shielding metal layer 130 without overlapping, the electrostatic risk between the two is low, and the data jumper line 140 is not required for jumper connection. Figure 2 and Figure 3 .

[0041] See also Figure 2 and Figure 3 In some embodiments, the display substrate 100 further includes a first metal layer ( Figures 2 to 8 The first metal layer is indicated by data fan-out line 121), the first sub-fan-out line 121A and the second sub-fan-out line 121B are arranged in the first metal layer, the first sub-fan-out line 121A is directly connected to the second sub-fan-out line 121B, and the orthographic projection of the first sub-fan-out line 121A and the second sub-fan-out line 121B on the display substrate 100 (i.e., in the thickness direction of the display substrate 100) does not overlap with the orthographic projection of the bottom shading metal layer 130 on the display substrate 100.

[0042] It is understood that the data jumper 140 is disposed on a second metal layer ( Figures 2 to 8The second metal layer is indicated by the data jumper line 140), and the distance between the second metal layer and the bottom light-shielding metal layer 130 in the thickness direction is greater than the distance between the first metal layer and the bottom light-shielding metal layer 130 in the thickness direction. It should also be noted that the second metal layer here can be a metal layer located above the first metal layer along the direction away from the display substrate. For example, when the structure of the display substrate includes multiple metal layers such as three or four layers, the second metal layer here can be a metal layer different from the metal layer where the data fan-out line 121 is located. The purpose is to achieve line switching where the data fan-out line 121 overlaps with the bottom light-shielding metal layer BSM. That is, the second metal layer is not limited to the metal layer closest to the metal layer above the data fan-out line 121, as long as the data fan-out line 121 can be switched where it overlaps with the bottom light-shielding metal layer BSM.

[0043] Exemplarily, the bottom light-shielding metal layer 130 is disposed in a lower layer of the first metal layer forming the data fan-out line 121. In other embodiments, the first metal layer is disposed in a lower layer of the bottom light-shielding metal layer 130. In this embodiment, the orthographic projections of the bottom light-shielding metal layer 130 and the first sub-fan-out line 121A and the second sub-fan-out line 121B on the display substrate 100 are completely staggered along the width direction of the bottom light-shielding metal layer 130. The span of the bottom light-shielding metal layer 130 and the first sub-fan-out line 121A and the second sub-fan-out line 121B in the manufacturing process of the display substrate 100 is stretched apart to reduce the risk of static electricity between the two conductive layers in the data fan-out line 121.

[0044] See also Figure 3 In some embodiments, the display substrate 100 further includes a first insulating layer 134 , and the first insulating layer 134 is disposed between the bottom light-shielding metal layer 130 and the data fan-out line 121 .

[0045] The bottom light shielding metal layer 130 and the data fan-out line 121 are separated by a first insulating layer 134 , and the data fan-out line 121 is covered with a protective layer 135 , which may also be an insulating layer or a passivation layer.

[0046] In other cases, for example, the space of the fan-out area 120 is limited, the above embodiment cannot be implemented, and the orthographic projections of the bottom light shielding metal layer 130 and the data fan-out line 121 on the display substrate 100 cannot be completely staggered in a normal wiring manner. Figure 4, the data jumper line 140, which is farther away from the bottom light-shielding metal layer 130 than the data fan-out line 121, is overlapped with the bottom light-shielding metal layer 130, and then the first sub-fan-out line 121A and the second sub-fan-out line 121B of the data fan-out line 121 are connected at a position outside the overlap. Specifically, the distance between the data fan-out line 121 and the bottom light-shielding metal layer 130 in the thickness direction of the display substrate 100 is smaller than the distance between the data jumper line 140 and the bottom light-shielding metal layer 130 in the thickness direction.

[0047] It can be understood that before the data jumper 140 is arranged, the first sub-fan-out line 121A and the second sub-fan-out line 121B belonging to the same data fan-out line 121 are disconnected, and are completely staggered along the width direction of the bottom light-shielding metal layer 130 with the orthographic projection of the bottom light-shielding metal layer 130 on the plane where the display substrate 100 is located, thereby reducing the electrostatic risk between the data fan-out line 121 and the bottom light-shielding metal layer 130 in the fan-out area 120. The data jumper 140 is arranged to connect the first sub-fan-out line 121A and the second sub-fan-out line 121B, and the distance between the data jumper 140 and the bottom light-shielding metal layer 130 in the thickness direction of the display substrate 100 is greater than the distance between the data fan-out line 121 and the bottom light-shielding metal layer 130 in the thickness direction of the display substrate 100, thereby also reducing the electrostatic risk between different conductive layers in the fan-out area 120.

[0048] In another embodiment, after removing the data jumper 140, the first sub-fan-out line 121A and the second sub-fan-out line 121B belonging to the same data fan-out line 121 may also be connected, and the orthographic projection of the bottom light-shielding metal layer 130 on the plane where the display substrate 100 is located is not completely offset along the width direction of the bottom light-shielding metal layer 130. After adding the data jumper 140, the electrostatic risk between the data fan-out line 121 and the bottom light-shielding metal layer 130 in the fan-out area 120 can also be reduced. The data jumper 140 is arranged to connect the first sub-fan-out line 121A and the second sub-fan-out line 121B located outside the orthographic projection of the bottom light-shielding metal layer 130 on the plane where the display substrate 100 is located, and the electrostatic risk between different conductive layers in the fan-out area 120 is also reduced.

[0049] See also Figure 5 The data fan-out line 121 is located between the data jumper line 140 and the bottom light-shielding metal layer 130. The display substrate 100 also includes a first insulating layer 134 and a second insulating layer 137 and a second metal layer for setting the data jumper line 140. The first insulating layer 134 is set between the bottom light-shielding metal layer 130 and the first metal layer, and the second insulating layer 137 is set between the first metal layer and the second metal layer.

[0050] Optionally, the second insulating layer 137 is further located between the bottom light shielding metal layer 130 and the data jumper 140 .

[0051] Optionally, the data jumper 140 is covered with a protection layer 135 , which may also be an insulating layer or a passivation layer.

[0052] See also Figures 6 to 8 The display substrate 100 further includes a first metal layer, a second metal layer and a third metal layer, the first sub-fan-out line 121A is arranged on the first metal layer, the data jumper line 140 is arranged on the second metal layer, and the second sub-fan-out line 121B is arranged on the third metal layer ( Figures 7 to 8 The third metal layer is formed by the second sub-fan-out line 121B), the distance between the first sub-fan-out line 121A and the bottom light-shielding metal layer 130 in the thickness direction of the display substrate 100 is smaller than the distance between the second sub-fan-out line 121B and the bottom light-shielding metal layer 130 in the thickness direction, and the orthographic projection of the second sub-fan-out line 121B on the display substrate 100 at least partially overlaps with the orthographic projection of the bottom light-shielding metal layer 130 on the display substrate 100.

[0053] In this embodiment, the data fan-out line 121 is switched (or layered) at the intersection with the bottom light-shielding metal layer 130, from the first sub-fan-out line 121A having a smaller distance from the bottom light-shielding metal layer 130 in the thickness direction to the second sub-fan-out line 121B having a larger distance from the bottom light-shielding metal layer 130 in the thickness direction, thereby widening the minimum span between the bottom light-shielding metal layer 130 and the data fan-out line 121 in the manufacturing process of the display substrate 100, thereby reducing the risk of static electricity between different conductive layers in the fan-out area 120.

[0054] See also Figure 7 and Figure 8 In some embodiments, the distance between the first sub-fan-out line 121A and the bottom light-shielding metal layer 130 in the thickness direction of the display substrate 100 is smaller than the distance between the data jumper line 140 and the bottom light-shielding metal layer 130 in the thickness direction. The minimum span between the bottom light-shielding metal layer 130 and the data jumper line 140 in the manufacturing process of the display substrate 100 is increased, and the risk of static electricity between the data jumper line 140 and the bottom light-shielding metal layer 130 is reduced.

[0055] See also Figure 7 and Figure 8 In some embodiments, the display substrate 100 further includes a first insulating layer 134 and a second insulating layer 137, wherein the first insulating layer 134 is disposed between the bottom light-shielding metal layer 130 and the first sub-fan-out line 121A, and the second insulating layer 137 is disposed between the bottom light-shielding metal layer 130 and the second sub-fan-out line 121B and between the bottom light-shielding metal layer 130 and the data jumper line 140.

[0056] See also Figure 7 In some embodiments, the contact point between the data jumper line 140 and the second sub-fan-out line 121B is located on the side of the second sub-fan-out line 121B away from the bottom light-shielding metal layer 130. During the manufacturing process, the first sub-fan-out line 121A and the second sub-fan-out line 121B can be manufactured first, and then the data jumper line 140 can be manufactured.

[0057] See also Figure 8 In some embodiments, the contact point between the data jumper line 140 and the second sub-fan-out line 121B is located on the side of the second sub-fan-out line 121B close to the bottom light-shielding metal layer 130. During the manufacturing process, the first sub-fan-out line 121A can be manufactured first, then the data jumper line 140, and finally the second sub-fan-out line 121B.

[0058] Optionally, the data jumper 140 is covered with a protection layer 135 , which may also be an insulating layer or a passivation layer.

[0059] It is worth noting that in any of the above embodiments, the bottom light shielding metal layer 130, the data fan-out line 121, and the data jumper line 140 can be a metal layer or an indium tin oxide conductive film. The first insulating layer 134, the second insulating layer 137, and the protective layer 135 can be silicon nitride or silicon oxide.

[0060] In one embodiment, the bottom light shielding metal layer 130 located in the fan-out region 120 is used to connect a power signal line, for example, to connect a high-level power signal.

[0061] In the embodiment provided by the present invention, the data fan-out line 121 of the display substrate 100 is configured into two sections, namely, a first sub-fan-out line 121A and a second sub-fan-out line 121B. In some cases, the orthographic projections of the first sub-fan-out line 121A and the second sub-fan-out line 121B on the display substrate 100 are configured not to overlap with the orthographic projections of the bottom light-shielding metal layer 130 on the display substrate 100, and have a sufficient anti-static distance; in other cases, when the data fan-out line 121 formed by directly connecting the first sub-fan-out line 121A and the second sub-fan-out line 121B does not have a sufficient spatial distance from the bottom light-shielding metal layer 130, the first data jumper line 140 is used to connect the first sub-fan-out line 121A. and the second sub-fan-out line 121B, using the first data jumper line 140 to overlap with the bottom light-shielding metal layer 130; in some cases, when the data fan-out line 121 formed by directly connecting the first sub-fan-out line 121A and the second sub-fan-out line 121B does not have enough space distance from the bottom light-shielding metal layer 130, the second sub-fan-out line 121B is switched to a metal layer farther away from the bottom light-shielding metal layer 130, and the second sub-fan-out line 121B is used to partially overlap with the bottom light-shielding metal layer 130, so as to avoid tip discharge or even breakdown due to overlap between the bottom light-shielding metal layer 130 and the data fan-out line 121 during the manufacturing process of the display substrate 100, thereby improving the product yield of the liquid crystal display substrate.

[0062] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0063] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A display substrate, comprising a display area and a fan-out area, wherein the fan-out area is located on one side of the display area; characterized in that: Along the direction away from the display substrate, the display substrate sequentially includes a bottom light-shielding metal layer; The display area includes at least one data signal line, the fan-out area includes at least one data fan-out line, and the data signal line is electrically connected to the corresponding data fan-out line; wherein The data fan-out line comprises a first sub-fan-out line and a second sub-fan-out line which are electrically connected, wherein an orthographic projection of the first sub-fan-out line on the display substrate does not overlap with an orthographic projection of the bottom light-shielding metal layer on the display substrate; and The display substrate also includes at least one data jumper line, one end of the data jumper line is electrically connected to the first sub-fan-out line, and the other end is electrically connected to the corresponding second sub-fan-out line. The orthographic projection of at least one of the data jumper lines or at least one of the second sub-fan-out lines on the display substrate at least partially overlaps with the orthographic projection of the bottom shading metal layer on the display substrate.

2. The display substrate according to claim 1, wherein: The display substrate also includes a first metal layer, the first sub-fan-out line and the second sub-fan-out line are arranged in the first metal layer, the first sub-fan-out line is directly connected to the second sub-fan-out line, and the orthographic projections of the first sub-fan-out line and the second sub-fan-out line on the display substrate do not overlap with the orthographic projection of the bottom shading metal layer on the display substrate.

3. The display substrate according to claim 2, wherein: The display substrate further includes a first insulating layer, which is disposed between the bottom light-shielding metal layer and the data fan-out line.

4. The display substrate according to claim 1, wherein: The display substrate also includes a first metal layer and a second metal layer, the first sub-fan-out line and the second sub-fan-out line are arranged in the first metal layer, the data jumper line is arranged in the second metal layer, and the distance between the data fan-out line and the bottom light-shielding metal layer in the thickness direction of the display substrate is smaller than the distance between the data jumper line and the bottom light-shielding metal layer in the thickness direction.

5. The display substrate according to claim 4, wherein: The data fan-out line is located between the data jumper line and the bottom light-shielding metal layer. The display substrate also includes a first insulating layer and a second insulating layer. The first insulating layer is arranged between the bottom light-shielding metal layer and the data fan-out line, and the second insulating layer is arranged between the data fan-out line and the data jumper line.

6. The display substrate according to claim 1, wherein: The display substrate also includes a first metal layer, a second metal layer and a third metal layer, the first sub-fan-out line is arranged in the first metal layer, the data jumper line is arranged in the second metal layer, the second sub-fan-out line is arranged in the third metal layer, the distance between the first sub-fan-out line and the bottom light-shielding metal layer in the thickness direction of the display substrate is smaller than the distance between the second sub-fan-out line and the bottom light-shielding metal layer in the thickness direction, and the orthographic projection of the second sub-fan-out line on the display substrate at least partially overlaps with the orthographic projection of the bottom light-shielding metal layer on the display substrate.

7. The display substrate according to claim 6, wherein: A distance between the first sub-fan-out line and the bottom light-shielding metal layer in a thickness direction of the display substrate is smaller than a distance between the data jumper line and the bottom light-shielding metal layer in the thickness direction.

8. The display substrate according to claim 6, wherein: The display substrate further includes a first insulating layer and a second insulating layer, wherein the first insulating layer is arranged between the bottom light-shielding metal layer and the first sub-fan-out line, and the second insulating layer is arranged between the bottom light-shielding metal layer and the second sub-fan-out line and between the bottom light-shielding metal layer and the data jumper line.

9. The display substrate according to any one of claims 1 to 8, characterized in that: The bottom light-shielding metal layer located in the fan-out area is used to connect a power signal line.

10. A display device, characterized in that: It also includes a display substrate as described in any one of claims 1-9.

Images