Display panel and display device

Abstract

The invention discloses a display panel and a display device, and relates to the technical field of display. A non-display area comprises a fan-out area and a binding area; the display panel comprises a substrate, the fan-out area comprises a plurality of fan-out wires, and the binding area comprises a plurality of conductive bonding pads; the display area is provided with a plurality of first signal lines which extend in the first direction and are arranged in the second direction, the first direction intersects with the second direction, and the first signal lines are electrically connected with the conductive bonding pads through fan-out wires. The fan-out wires comprise at least one first fan-out wire, each first fan-out wire only comprises a sub-section extending in the first direction and / or the second direction, the sub-sections comprise the first sub-section and the second sub-section, in the same first fan-out wire, the second sub-section is located on the side, facing the binding area, of the first sub-section, and the second sub-section is located on the side, facing the binding area, of the second sub-section. The first signal line is connected with the second sub-segment through the first sub-segment, the first sub-segment extends along a first direction, and the second sub-segment extends along a second direction. Therefore, the display uniformity of the display panel is improved.

Description

[0001] This application is a divisional application of application number 202310174814.6, application date February 28, 2023, and invention name “Display panel and display device”. Technical Field

[0002] The present invention relates to the field of display technology, and more particularly, to a display panel and a display device. Background Art

[0003] From the CRT (Cathode Ray Tube) era to the LCD (Liquid Crystal Display) era, and now to the OLED (Organic Light-Emitting Diode) display era and the LED display era, the display industry has experienced decades of development and has changed with each passing day. The display industry is closely related to our lives, from traditional mobile phones, tablets, TVs, computers to today's smart wearable devices, virtual reality devices, car displays and other electronic devices, all of which are inseparable from display technology.

[0004] With the development of display technology, people have higher and higher requirements on the display quality of display products. The flatness of the flat layer in the display panel directly affects the display uniformity of the display panel. If the thickness of the flat layer in the display area is uneven, it will directly affect the display uniformity of the display panel. Summary of the invention

[0005] In view of this, the present invention provides a display panel and a display device, aiming to improve the flatness of a flat layer in a display area of ​​the display panel and improve the display uniformity of the display panel.

[0006] In a first aspect, the present invention provides a display panel, comprising a display area and a non-display area arranged outside the display area, wherein the non-display area comprises a fan-out area and a binding area; the display panel comprises a substrate, the fan-out area comprises a plurality of fan-out traces arranged on one side of the substrate, and the binding area comprises a plurality of conductive pads arranged on one side of the substrate;

[0007] The display area is provided with a plurality of first signal lines extending along the first direction and arranged along the second direction, the first direction and the second direction intersect, and the first signal lines are electrically connected to the conductive pads through the fan-out wiring;

[0008] The fan-out routing includes at least one first fan-out routing, the first fan-out routing only includes sub-segments extending along the first direction and / or extending along the second direction, the sub-segments include a first sub-segment and a second sub-segment, the second sub-segment is located on a side of the first sub-segment facing the binding area, the first signal line is connected to the second sub-segment through the first sub-segment, the first sub-segment extends along the first direction, and the second sub-segment extends along the second direction.

[0009] In a second aspect, based on the same inventive concept, the present invention further provides a display device, comprising the display panel provided in the first aspect of the present invention.

[0010] Compared with the prior art, the display panel and display device provided by the present invention achieve at least the following beneficial effects:

[0011] In the display panel and display device provided by the present invention, the first signal line extending in the first direction and arranged in the second direction in the display area is electrically connected to the conductive pad in the binding area through the fan-out line of the fan-out area, wherein the first direction can be regarded as the column direction and the second direction can be regarded as the row direction. Since the fan-out area is arranged adjacent to the binding area, the layout of the fan-out line in the fan-out area, especially the layout of the fan-out line in the area close to the display area in the fan-out area, will affect the coating flatness of the flat layer in the display area. The present invention improves the wiring method of the first fan-out line in the fan-out area, specifically, the first fan-out line is arranged to include only sub-segments extending in the first direction and / or extending in the second direction, that is, the first fan-out line only includes sub-segments extending in the row direction, and / or, only includes sub-segments extending in the column direction, and does not include obliquely arranged sub-segments, the sub-segments include electrically connected first sub-segments and second sub-segments, in the same first fan-out line, the first sub-segment is located between the second sub-segment and the display area, and the first sub-segment extends in the first direction and is electrically connected to the first signal line. That is to say, in the first fan-out routing of the fan-out area, the extension direction of the line segment close to the display area and connected to the first signal line is the same as the extension direction of the first signal line. When a flat layer is formed on the display panel, the flat layer is usually arranged on the side of the fan-out routing facing the light-emitting surface of the display panel. When the fan-out routing in the fan-out area adopts an inclined routing wiring method, the fan-out routing will be gathered in the area close to the display area in the fan-out area. In the area where the fan-out routing is gathered, the coated flat layer will also be gathered in the area where the fan-out routing is gathered, resulting in the thinning of the flat layer in the area close to the fan-out area on one side of the display area, thereby causing the problem of poor flatness of the flat layer in the display area. When the present invention sets the first sub-segment connected to the first signal line to be the same as the extension direction of the first signal line, the coated flat layer will not be gathered in the area close to the display area in the binding area, thereby avoiding the problem of missing flat layer in some areas of the display area close to the fan-out area, so it is beneficial to improve the flatness of the flat layer in the display area, and then it is beneficial to improve the display uniformity of the display panel.

[0012] Of course, any product implementing the present invention does not necessarily need to achieve all of the above-mentioned technical effects at the same time.

[0013] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0015] Figure 1 Shown is a top view of a display panel in the related art;

[0016] Figure 2 FIG. 1 is a top view of a display panel provided by an embodiment of the present invention;

[0017] Figure 3 Shown Figure 2 A wiring diagram of a part of the display area and a part of the fan-out area in the display panel;

[0018] Figure 4 Shown Figure 2 An AA cross-sectional view of the display panel;

[0019] Figure 5 Shown is a connection relationship diagram of the first signal line and the fan-out line;

[0020] Figure 6 Shown is a connection relationship diagram of the first signal line and the fan-out line;

[0021] Figure 7 Shown Figure 6 A BB cross-sectional view;

[0022] Figure 8 Shown Figure 2 Another AA cross-sectional view of the display panel;

[0023] Fig. 9 Shown Figure 6 Another BB-direction cross-sectional view;

[0024] Fig.10 FIG. 2 is another top view of a display panel provided by an embodiment of the present invention;

[0025] Fig.11 Shown Fig.10 A wiring diagram of a part of the display area and a part of the fan-out area in the display panel;

[0026] Fig.12Shown is a connection diagram of the first sub-first fan-out routing and the auxiliary routing;

[0027] Fig.13 Shown is a schematic diagram of a membrane layer of the first sub-first fan-out routing and auxiliary routing;

[0028] Fig.14 FIG. 2 is another top view of a display panel provided by an embodiment of the present invention;

[0029] Fig.15 FIG. 2 is another top view of a display panel provided by an embodiment of the present invention;

[0030] Fig.16 FIG. 2 is another top view of a display panel provided by an embodiment of the present invention;

[0031] Fig.17 FIG. 2 is another top view of a display panel provided by an embodiment of the present invention;

[0032] Fig.18 FIG. 1 is a schematic diagram of a structure of a display device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0033] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless otherwise specifically stated.

[0034] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0035] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0036] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0037] It is obvious to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention. Therefore, the present invention is intended to cover modifications and variations of the present invention that fall within the scope of the corresponding claims (technical solutions claimed for protection) and their equivalents. It should be noted that the implementation methods provided in the embodiments of the present invention can be combined with each other without contradiction.

[0038] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0039] Figure 1 The figure shows a top view of a display panel in the related art, please refer to Figure 1 In the display panel 100' provided by the related art, a fan-out area A1' is provided in the non-display area on one side of the display area A0', and the fan-out routing 20' in the fan-out area A1' is electrically connected to the first signal line 10' in the display area A0'. In the fan-out area A1', most of the fan-out routing 20' is arranged in an oblique manner, and the fan-out routing 20' on both sides of the fan-out area A1' converges to the middle area. In this way, the fan-out routing is densely wired in the area of ​​the fan-out area close to the display area, especially when the display panel is a widescreen display panel, the number of corresponding first signal lines is large, and when the fan-out routing corresponding to the first signal line is gathered to the position of the same binding area, the fan-out routing is more densely wired. When a planarizing layer is coated on the display area and non-display area, more planarizing layers will be concentrated in the area with dense fan-out wiring, while the display area closer to the area will have a problem of thin planarizing layers. That is, the thickness of the planarizing layers in the display area closer to the fan-out area and other display areas is uneven, resulting in uneven display of the display panel.

[0040] In view of this, the present invention provides a display panel and a display device, aiming to improve the flatness of a flat layer in a display area of ​​the display panel and improve the display uniformity of the display panel.

[0041] Figure 2 FIG. 1 is a top view of a display panel provided by an embodiment of the present invention. Figure 3 Shown Figure 2 A wiring diagram of part of the display area and part of the fan-out area in the display panel, please refer to Figure 2 and Figure 3 The embodiment of the present invention provides a display panel 100, including a display area A0 and a non-display area A01 arranged outside the display area A0, the non-display area A01 includes a fan-out area A1 and a binding area A2; the display panel includes a substrate 00, the fan-out area A1 includes a plurality of fan-out traces arranged on one side of the substrate 00, and the binding area A2 includes a plurality of conductive pads P arranged on one side of the substrate 00;

[0042] The display area A0 is provided with a plurality of first signal lines 10 extending along a first direction F1 and arranged along a second direction F2, the first direction F1 and the second direction F2 intersect, and the first signal lines 10 are electrically connected to the conductive pads P through fan-out wiring;

[0043] The fan-out routing includes at least one first fan-out routing 20, the first fan-out routing 20 only includes sub-segments extending along the first direction F1 and / or extending along the second direction F2, the sub-segments include a first sub-segment 21 and a second sub-segment 22, in the same first fan-out routing 20, the second sub-segment 22 is located on the side of the first sub-segment 21 facing the binding area A2, the first signal line 10 is connected to the second sub-segment 22 through the first sub-segment 21, the first sub-segment 21 extends along the first direction F1, and the second sub-segment 22 extends along the second direction F2.

[0044] It should be noted that Figure 1 The display panel with a rectangular structure is only taken as an example for description, and the shape of the display panel is not limited. In some other embodiments of the present invention, the shape of the display panel may also be other shapes, such as a rounded rectangle, a circle, or other feasible shapes. Figure 1 Only one arrangement of the first signal lines 10 and the fan-out lines is illustrated, and the number of the first signal lines 10 and the fan-out lines actually included in the display panel is not limited.

[0045] Optionally, the display panel provided in the embodiment of the present invention is a liquid crystal display panel. Of course, in some other embodiments of the present invention, the display panel may also be other feasible panels such as OLED, and the present invention does not specifically limit this.

[0046] Optionally, the first signal line 10 provided in the embodiment of the present invention is, for example, a data line in a display panel.

[0047] Specifically, continue to refer to Figure 2 and Figure 3 In the display panel provided by the embodiment of the present invention, the first signal line 10 extending along the first direction F1 and arranged along the second direction F2 in the display area A0 is electrically connected to the conductive pad P in the binding area A2 through the fan-out trace of the fan-out area A1, wherein the first direction F1 can be regarded as the column direction and the second direction F2 can be regarded as the row direction. It should be noted that the number and arrangement of the conductive pads P in the binding area A2 are only for illustration, and the actual number and arrangement of the conductive pads P are not limited.

[0048] Since the fan-out area A1 is arranged adjacent to the binding area A2, the layout of the fan-out routing in the fan-out area A1, especially the layout of the fan-out routing in the area close to the display area A0 in the fan-out area A1, will affect the coating flatness of the flat layer in the display area A0. The present invention improves the wiring method of the first fan-out routing 20 in the fan-out area A1, specifically, the first fan-out routing 20 is arranged to include only sub-segments extending along the first direction F1 and / or extending in the second direction F2, that is, the first fan-out routing 20 only includes sub-segments extending along the row direction, and / or, only includes sub-segments extending along the column direction, and does not include obliquely arranged sub-segments. In this embodiment, the above-mentioned sub-segments include an electrically connected first sub-segment 21 and a second sub-segment 22. In the same first fan-out routing 20, the first sub-segment 21 is located between the second sub-segment 22 and the display area A0, and the first sub-segment 21 extends along the first direction F1 and is electrically connected to the first signal line 10. That is, in the first fan-out routing 20 of the fan-out area A1, the extension direction of the line segment close to the display area A0 and connected to the first signal line 10 is the same as the extension direction of the first signal line 10. When a flat layer is formed on the display panel, the flat layer is usually arranged on the side of the fan-out routing facing the light-emitting surface of the display panel. When the fan-out routing in the fan-out area A1 adopts an inclined routing wiring method, the fan-out routing will be gathered in the area close to the display area A0 in the fan-out area A1. In the area where the fan-out routing is gathered, the coated flat layer will also be gathered in the area where the fan-out routing is gathered, resulting in the thinning of the flat layer in the area close to the fan-out area A1 on one side of the display area A0, resulting in the problem of poor flatness of the flat layer in the display area A0. When the present invention sets the first sub-segment 21 connected to the first signal line 10 to be the same as the extension direction of the first signal line 10, the coated flat layer will not gather in the area of ​​the binding area A2 close to the display area A0, thereby avoiding the problem of missing flat layer in part of the display area A0 close to the fan-out area A1. It is beneficial to improve the flatness of the flat layer in the display area A0, and further to improve the display uniformity of the display panel.

[0049] It should be noted that the above embodiment only describes the wiring situation of the first fan-out routing 20 in the fan-out routing, and does not mean that the fan-out routing in the display panel only includes the aforementioned first fan-out routing 20. In some other embodiments of the present invention, the fan-out routing may also include a fan-out routing extending only along the first direction F1.

[0050] Continue to refer Figure 3 In an optional embodiment of the present invention, the display area A0 includes a first edge B1, and the first edge B1 is adjacent to the binding area A2; along the first direction F1, the minimum distance between the second sub-segment 22 and the first edge B1 of the display area A0 is D0, where D0≥0.2mm.

[0051] Specifically, in the first fan-out routing 20 of the fan-out area A1, the second sub-segment 22 is arranged on a side of the first sub-segment 21 away from the display area A0, and the extension direction of the second sub-segment 22 intersects with the extension direction of the first signal line 10 and the first sub-segment 21. Assuming that the extension direction of the first signal line 10 and the first sub-segment 21 is the column direction, the extension direction of the second sub-segment 22 is the row direction. During the coating process of the flat layer, since the extension direction of the second sub-segment 22 intersects with the extension direction of the first sub-segment 21 and the first signal line 10, the flat layer may still be gathered at the position where the second sub-segments 22 are gathered. If the distance between the second sub-segment 22 in the fan-out area A1 and the first edge B1 of the display area A0 is too close, for example, less than 0.2 mm, then at this time, the amount of the flat layer gathered in the second sub-segment 22 will affect the flatness of the flat layer in the display area A0 which is closer to it, and it may still cause the thickness of the flat layer in the display area A0 which is closer to the second sub-segment 22 to be less than the thickness of the flat layer at other positions in the display area A0, and the problem of uneven display may still occur. When the minimum distance between the second sub-segment 22 and the first edge B1 of the display area A0 is set to be greater than or equal to 0.2 mm, the distance between the second sub-segment 22 and the display area A0 along the first direction F1 is increased. At this time, even if the flat layer is gathered at the positions of multiple second sub-segments 22, since the distance between the position where the flat layer is gathered and the display area A0 is relatively far, it will only cause the flat layer in the fan-out area A1 around the gathered position to be thinner and not affect the position of the display area A0, so it will not affect the flatness of the flat layer in the display area A0, so as to avoid the problem of uneven display in the display area A0 due to uneven flatness of the flat layer, so it is beneficial to improve the overall display uniformity of the display panel.

[0052] Optionally, in the display panel provided by the embodiment of the present invention, the minimum distance between the second sub-segment 22 and the first edge B1 of the display area A0 is D0 ≥ 0.5 mm, which can effectively avoid the influence of the aggregation of the flat layer at the second sub-segment 22 on the thickness of the flat layer in the display area, is more conducive to improving the problem of uneven thickness of the flat layer in the display area, and is more conducive to improving the overall display uniformity of the display panel.

[0053] Continue to refer Figure 2 and Figure 3 In an optional embodiment of the present invention, along the first direction F1, the fan-out area A1 is located between the display area A0 and the binding area A2, the second sub-segment 22 is located on the side of the first sub-segment 21 facing the binding area A2, and the sub-segment further includes a third sub-segment 23, the third sub-segment 23 is located on the side of the second sub-segment 22 facing the binding area A2, one end of the third sub-segment 23 is electrically connected to the second sub-segment 22, and the other end is electrically connected to the conductive pad P, and the third sub-segment 23 extends along the first direction F1.

[0054] Specifically, the present embodiment further shows a solution in which the fan-out area A1 and the binding area A2 are arranged on the same side of the display area A0, and the third sub-segment 23 is introduced between the conductive pad P of the binding area A2 and the second sub-segment 22 of the first fan-out routing 20. The second sub-segment 22 is electrically connected to the conductive pad P through the third sub-segment 23, thereby realizing the electrical connection between the first fan-out routing 20 and the conductive pad P, and further realizing the electrical connection between the first signal line 10 and the conductive pad P. In the display panel provided by the embodiment of the present invention, the extension direction of the third sub-segment 23 is the same as the extension direction of the first signal line 10 and the first sub-segment 21, for example, both extend in the column direction. When the third sub-segment 23 extends in the column direction, the flat layer is not easy to gather at the position corresponding to the third sub-segment 23, thereby avoiding the influence on the flatness of the flat layer in other areas of the display panel, so it is beneficial to improve the overall flatness of the flat layer in the display panel, and further to improve the overall display uniformity of the display panel.

[0055] Figure 4 Shown Figure 2 An AA cross-sectional view of the display panel in FIG. 1 is provided. This embodiment illustrates some film layer structures of the display panel, but does not limit the number and size of the film layers actually included in the display panel.

[0056] Please refer to Figure 4 , and combined with Figure 2 and Figure 3 In an optional embodiment of the present invention, the display panel also includes a first metal layer M1, a second metal layer M2 and a planar layer PLN arranged on one side of the substrate 00. Along a direction perpendicular to the substrate 00, the first metal layer M1 is located between the substrate 00 and the second metal layer M2, and the planar layer PLN is located on the side of the second metal layer M2 away from the substrate 00; the fan-out wiring is located on the side of the planar layer PLN facing the substrate 00.

[0057] It should be noted that Figure 4 The film layer structure of the display panel in the display area A0 is shown. In the display area A0, optionally, a first electrode layer T1 and a second electrode layer T2 are further provided on the side of the flat layer facing away from the substrate 00. In the non-display area A01, for example, in the fan-out area A1, the first electrode layer T1 and the second electrode layer T2 may no longer be provided.

[0058] Optionally, the display panel further includes a semiconductor layer poly, which is located on the side of the first metal layer M1 facing away from the substrate 00, or on the side of the first metal layer M1 facing the substrate 00. The first metal layer M1 may be, for example, a gate metal layer, and the gate of the transistor in the display panel may be arranged on the first metal layer M1. The source electrode S and the drain electrode D of the transistor T in the display panel may be located on the second metal layer M2, and the semiconductor layer poly includes a source region and a drain region, and the source region and the drain region are formed by doping N-type impurity ions or P-type impurity ions. The source electrode S of the transistor is electrically connected to the source region of the semiconductor layer poly through a contact hole, and the drain electrode D of the transistor is electrically connected to the drain region of the semiconductor layer poly through a contact hole.

[0059] In the display panel provided in the embodiment of the present invention, the flat layer PLN is arranged on the side of the second metal layer M2 away from the substrate 00, and the flat layer PLN is used to provide a flattened surface. Along the direction perpendicular to the substrate 00, the fan-out wiring is located on the side of the flat layer facing the substrate 00. That is to say, in the process of manufacturing the display panel, the wiring of the first metal layer, the second metal layer and the fan-out wiring is completed first, and then the flat layer is formed. Optionally, the flat layer is formed by coating. If more wiring film layers are formed on the flat layer, the display uniformity of the entire display panel will be affected. The way in which the fan-out wiring is arranged under the flat layer in the embodiment of the present invention is more conducive to improving the overall flatness of the flat layer.

[0060] Figure 5 The figure shows a connection relationship diagram between the first signal line and the fan-out line, where the same fill represents that the corresponding lines are located in the same film layer, and different fill represents that the corresponding lines are located in different film layers. Figure 5 The filling is only for illustrating the film layer of the routing, and does not represent the actual line width of the first signal line 10 and the fan-out routing.

[0061] Please refer to Figure 5 In an optional implementation manner of the present invention, at least part of the first sub-segment 21 is arranged on the same layer as the first signal line 10 .

[0062] Specifically, in the display panel provided by the embodiment of the present invention, when the first sub-segment 21 and the first signal line 10 are arranged in the same layer, the first sub-segment 21 and the first signal line 10 can be manufactured by using the same material in the same process, that is, there is no need to introduce different film layers for the first sub-segment 21 and the first signal line 10, respectively, so it is helpful to simplify the manufacturing process of the first signal line 10 and the first sub-segment 21. Moreover, when the first sub-segment 21 and the first signal line 10 are arranged in the same film layer and a flat layer is coated on this basis, the first signal line 10 in the display area A0 and the first sub-segment 21 in the fan-out area A1 are in the same layer and extend in the same direction, so that the wiring structure of the film layer where the first signal line 10 is arranged and the area where the first sub-segment 21 is arranged is the same, which is helpful to avoid the problem of uneven thickness of the flat layer caused by different wiring structures in the two areas, and thus it is helpful to avoid the influence of the flat layer in the area where the first sub-segment 21 is located on the thickness of the flat layer in the display area A0.

[0063] Optionally, combine Figure 4 and Figure 5 , the first signal line 10 and the first sub-segment 21 are both located in the second metal layer M2.

[0064] Optionally, the first signal line 10 , the first sub-segment 21 , the second sub-segment 22 and the third sub-segment 23 may be arranged in the same layer, for example, may all be arranged in the second metal layer M2 .

[0065] Figure 6 The figure shows a connection relationship diagram between the first signal line 10 and the fan-out line, wherein the same filling represents that the corresponding lines are located in the same film layer, and different filling represents that the corresponding lines are located in different film layers. Figure 6 The filling is only for illustrating the film layer of the routing, and does not represent the actual line width of the first signal line 10 and the fan-out routing.

[0066] Please refer to Figure 6 , and combined with Figure 2 and Figure 4 In an optional embodiment of the present invention, the first fan-out routing 20 further includes a third sub-segment 23, the third sub-segment 23 is located on the side of the second sub-segment 22 facing the binding area A2, one end of the third sub-segment 23 is electrically connected to the second sub-segment 22, and the other end is electrically connected to the conductive pad P, and an extension direction of the third sub-segment 23 intersects with an extension direction of the second sub-segment 22; the third sub-segment 23 is arranged on the same layer as the first sub-segment 21.

[0067] Specifically, this embodiment shows a scheme in which the third sub-segment 23 is arranged in the same layer as the first sub-segment 21. When the first fan-out wiring 20 is actually manufactured, the third sub-segment 23 and the first sub-segment 21 are arranged in the same film layer, so that the third sub-segment 23 and the first sub-segment 21 can be manufactured in the same process, and there is no need to introduce different film layers and different processes for the third sub-segment 23 and the first sub-segment 21, respectively, so it is helpful to simplify the film layer structure and manufacturing process of the display panel. In addition, when the third sub-segment 23 and the first sub-segment 21 are arranged in the same layer, and the third sub-segment 23 and the first sub-segment 21 both extend along the first direction F1, the wiring structure targeted when the flat layer is applied on the film layer where the third sub-segment 23 is located is consistent, so it is helpful to improve the thickness uniformity of the flat layer in the area where the third sub-segment 23 and the first sub-segment 21 are located.

[0068] Optionally, combine Figure 4 and Figure 6 The first signal line 10, the first sub-segment 21 and the third sub-segment 23 are all located in the second metal layer. When the second metal layer is manufactured in the display panel, the first signal line 10, the first sub-segment 21 and the third sub-segment 23 can be formed together, which is beneficial to simplify the film layer structure of the display panel and improve the production efficiency of the display panel.

[0069] Figure 7 Shown Figure 6 A BB cross-sectional view is shown in FIG. 1 , in which the membrane layer structure where the first sub-segment 21 and the second sub-segment 22 are located is schematically illustrated.

[0070] In the fan-out area A1, the distance between the second sub-segment 22 and the first edge B1 of the display area A0 will affect the wiring flatness of the flat layer. In addition, the position of the film layer of the second sub-segment 22 will also affect the flatness of the flat layer. The closer the distance between the second sub-segment 22 and the flat layer, the greater the impact on the flatness of the flat layer will be when the second sub-segments 22 are gathered.

[0071] Please refer to Figure 7 In an optional embodiment of the present invention, the second subsegment 22 and the first subsegment 21 are arranged in different layers, and the second subsegment 22 is located on a side of the first subsegment 21 facing the substrate 00 .

[0072] When the second sub-segment 22 is arranged on the side of the first sub-segment 21 facing the substrate 00, the vertical distance between the second sub-segment 22 and the flat layer PLN is larger than that of the first sub-segment 21, that is, the distance between the second sub-segment 22 and the flat layer is increased. When the second sub-segments 22 are clustered in the area where the second sub-segments 22 are located, since the second sub-segments 22 are far away from the flat layer, it is equivalent to reducing the influence of the clustering phenomenon of the second sub-segments 22 on the flatness of the flat layer from the spatial distance, thereby reducing the degree of clustering of the flat layer at the location of the second sub-segment 22, and also reducing the influence of the clustered flat layer on the thickness of the flat layer in the display area A0, so it is more conducive to improving the flatness of the flat layer in the display area A0, and therefore more conducive to improving the overall display uniformity of the display panel.

[0073] It should be noted that when the first sub-segment 21 and the second sub-segment 22 are located in different film layers, the first sub-segment 21 and the second sub-segment 22 located in the same first fan-out trace 20 may be electrically connected through a via.

[0074] Figure 8 Shown Figure 2 Another AA cross-sectional view of the display panel, Fig. 9 Shown Figure 6 Another BB cross-sectional view.

[0075] Please refer to Figure 8 , Figure 7 and Fig. 9 In an optional embodiment of the present invention, the display panel also includes a light-shielding metal layer M0, which is located on the side of the first metal layer M1 facing the substrate 00, the first sub-segment 21 is located on the second metal layer M2, and the second sub-segment 22 is located on the first metal layer M1 or the light-shielding metal layer M0.

[0076] Optionally, the orthographic projection of the light-shielding metal layer M0 on the plane where the substrate 00 is located overlaps with the orthographic projection of the active layer poly of the transistor T on the plane where the substrate 00 is located. Specifically, the orthographic projection of the light-shielding metal layer M0 on the plane where the substrate 00 is located covers the orthographic projection of the channel region of the transistor T on the plane where the substrate 00 is located. Since the channel region of the transistor is relatively sensitive to light, in a liquid crystal display device, the display light is provided by a backlight source. When the light provided by the backlight source is directed to the display panel, the light-shielding metal layer M0 can prevent the light from the backlight source from directly irradiating the channel region of the transistor, thereby preventing the light from affecting the performance of the transistor.

[0077] Please refer to Figure 8 , Figure 7 and Fig. 9 ,in, Figure 7 The illustrated embodiment shows a scheme in which the first sub-segment 21 is disposed on the second metal layer M2, and the second sub-segment 22 is disposed on the first metal layer M1. Fig. 9 The illustrated embodiment shows a scheme of setting the first sub-segment 21 on the second metal layer M2, and setting the second sub-segment 22 on the light-shielding metal layer M0. In the display panel, the vertical distance between the second sub-segment 22 and the flat layer has a direct impact on the flatness of the flat layer PLN. The greater the distance between the two, the smaller the impact of the aggregation of the second sub-segment 22 on the flat layer. Setting the second sub-segment 22 on the first metal layer M1 or the light-shielding metal layer M0 can reduce the impact of the second sub-segment 22 on the flatness of the flat layer to a certain extent. Since the light-shielding metal layer M0 is farther away from the flat layer, the scheme of setting the second sub-segment 22 on the light-shielding metal layer M0 is more conducive to reducing the impact of the aggregation of the second sub-segment 22 on the flatness of the flat layer, and is more conducive to improving the thickness uniformity of the flat layer in each area of ​​the display panel, so it is more conducive to improving the display uniformity of the display panel.

[0078] Fig.10 FIG. 1 is another top view of a display panel provided by an embodiment of the present invention. Fig.11 Shown Fig.10 A schematic diagram of wiring of a portion of the display area A0 and a portion of the fan-out area A1 in the display panel. The fan-out wiring shown in this embodiment includes not only the first fan-out wiring 20 but also the second fan-out wiring 30 .

[0079] Please refer to Fig.10 and Fig.11 In an optional embodiment of the present invention, the display area A0 includes a first display area A01 and a second display area A02. Along the second direction F2, the first display area A01 is located on both sides of the second display area A02. The first signal line 10 includes a first-area first signal line 11 arranged in the first display area A01 and a second-area first signal line 12 arranged in the second display area A02. The fan-out wiring also includes a second fan-out wiring 30. The first-area first signal line 11 is electrically connected to the first fan-out wiring 20, and the second-area first signal line 12 is electrically connected to the second fan-out wiring 30. The second fan-out wiring 30 extends along the first direction F1.

[0080] Specifically, the first signal line 11 in the first area can be regarded as the first signal line 10 arranged on both sides of the display area A0 in the display area A0, and the first signal line 12 in the second area can be regarded as the first signal line 10 arranged in the middle area of ​​the display area A0. The binding area A2 is set in the middle area of ​​the lower frame of the display panel. When the first signal line 11 in the first area is electrically connected to the conductive pad P in the binding area A2 through the first fan-out routing 20, the first fan-out routing 20 needs to converge from both sides of the display panel along the second direction F2 to the location of the binding area A2, so the first fan-out routing 20 includes at least two sub-segments. Since the first signal line 12 in the second area is located in the middle area of ​​the display panel, when the second fan-out routing 30 is used to electrically connect the first signal line 12 in the second area to the binding pad, the second fan-out routing 30 does not need to change the extension direction, that is, the second fan-out routing 30 extends along the first direction F1, and the second fan-out routing 30 only includes line segments extending along the first direction F1, which is conducive to simplifying the connection between the first signal line 12 in the second area and the conductive pad P. In addition, in the area adjacent to the display area A0 in the fan-out area A1, the second fan-out routing 30 and the first sub-segment 21 of the first fan-out routing 20 are both extended along the first direction F1, which is consistent with the extension direction of the first signal line 10 in the display area A0, thereby avoiding the problem of uneven thickness of the flat layer in the display area A0 caused by the line segments extending in different directions from the first direction F1 gathering in the area close to the display area A0, which is also conducive to improving the flatness of the flat layer in the display area A0 and improving the overall display uniformity.

[0081] Continue to refer Fig.10 and Fig.11 In an optional embodiment of the present invention, the first fan-out routing 20 includes a first sub-first fan-out routing 201 and a second sub-first fan-out routing 202, the length of the first sub-first fan-out routing 201 is greater than the length of the second sub-first fan-out routing 202; the line width of the first sub-first fan-out routing 201 is greater than the line width of the second sub-first fan-out routing 202.

[0082] Specifically, when the position of the first signal line 10 on the display panel is different, the length of the corresponding first fan-out routing 20 is also different. Assuming that the second display area A02 is used as a reference, the farther the first signal line is from the second display area A02, the longer the length of the corresponding first fan-out routing 20 is. When the length of the first fan-out routing 20 is inconsistent, the corresponding impedance is also inconsistent. Assuming that the first fan-out routing 20 includes a first sub-first fan-out routing 201 with a larger length and a second sub-first fan-out routing 202 with a smaller length, if the line widths of the first sub-first fan-out routing 201 and the second sub-first fan-out routing 202 are the same, the impedance of the first sub-first fan-out routing 201 will be greater than the impedance of the second sub-first fan-out routing 202. To this end, the embodiment of the present invention sets the line width of the first sub-first fan-out routing 201 with a longer length to be greater than the line width of the second sub-first fan-out routing 202, thereby reducing the impedance of the first sub-first fan-out routing 201, and reducing the impedance difference between the first sub-first fan-out routing 201 and the second sub-first fan-out routing 202, which is beneficial to improving the consistency of the transmission rate of the signal transmitted to the data signal line through the first sub-first fan-out routing 201 and the second sub-first fan-out routing 202, and further beneficial to improving the overall display effect of the display panel.

[0083] Fig.12 FIG. 4 is a schematic diagram showing a connection between the first sub-first fan-out wiring 201 and the auxiliary wiring 40 .

[0084] Please combine Fig.10 and Fig.12 In an optional embodiment of the present invention, the first fan-out routing 20 includes a first sub-first fan-out routing 201 and a second sub-first fan-out routing 202, and the length of the first sub-first fan-out routing 201 is greater than the length of the second sub-first fan-out routing 202; the display panel also includes an auxiliary routing 40, and the auxiliary routing 40 is connected in parallel with the first sub-first fan-out routing 201.

[0085] Specifically, when the position of the first signal line 10 on the display panel is different, the length of the corresponding first fan-out routing 20 is also different. Assuming that the second display area A02 is used as a reference, the farther the first signal line is from the second display area A02, the longer the length of the corresponding first fan-out routing 20 is. When the length of the first fan-out routing 20 is inconsistent, the corresponding impedance is also inconsistent. Assuming that the first fan-out routing 20 includes a first sub-first fan-out routing 201 with a larger length and a second sub-first fan-out routing 202 with a smaller length, if the line widths of the first sub-first fan-out routing 201 and the second sub-first fan-out routing 202 are the same, the impedance of the first sub-first fan-out routing 201 will be greater than the impedance of the second sub-first fan-out routing 202. To this end, the present invention connects an auxiliary routing line 40 in parallel to the first sub-first fan-out routing line 201 with a longer length. By connecting the auxiliary routing line 40 in parallel, the impedance of the first sub-first fan-out routing line 201 can be effectively reduced, and the impedance difference between the first sub-first fan-out routing line 201 and the second sub-first fan-out routing line 202 is reduced, which is beneficial to improving the consistency of the transmission rate of the signal transmitted to the data signal line through the first sub-first fan-out routing line 201 and the second sub-first fan-out routing line 202, and further helps to improve the overall display effect of the display panel.

[0086] It should be noted that Fig.12 The illustrated embodiment only shows a solution of connecting one auxiliary routing line 40 in parallel to the first sub-first fan-out routing line 201, but does not limit the number of auxiliary routing lines 40 actually connected in parallel to the first sub-first fan-out routing line 201. In some other embodiments of the present invention, two or more auxiliary routing lines 40 may be connected in parallel to the first sub-first fan-out routing line 201 according to actual needs.

[0087] Assuming that the second sub-first fan-out routing 202 is the first fan-out routing 20 adjacent to the second fan-out routing 30, the fan-out routings arranged on the side of the second sub-first fan-out routing 202 away from the second fan-out routing 30 can all be regarded as the first sub-first fan-out routing 201. In order to balance the impedance difference between the first sub-first fan-out routing 201 and the second sub-first fan-out routing 202 of different lengths, the line width of each first sub-first fan-out routing 201 can be designed differently. For example, from the direction where the second fan-out routing 30 is located to the direction where the first fan-out routing 20 is located, the line width of each first sub-first fan-out routing 201 is set to gradually increase. The longer the length of the first sub-first fan-out routing 201 is, the larger the corresponding line width will be, which is more conducive to reducing the impedance difference between it and the second sub-first fan-out routing 202. For another example, each first sub-first fan-out routing 201 is connected in parallel with an auxiliary routing 40, and the impedance of the auxiliary routing 40 connected in parallel with the first sub-first fan-out routing 201 shows a decreasing trend from the area where the second fan-out routing 30 is located to the direction where the first fan-out routing 20 is located. The farther the first sub-first fan-out routing 201 is from the second fan-out routing 30, the smaller the impedance of the auxiliary routing 40 connected in parallel with the first sub-first fan-out routing 201 is, which is more conducive to reducing the impedance of the first sub-first fan-out routing 201 with a longer length, and is more conducive to balancing the impedance difference between different first sub-first fan-out routings 201 and the second sub-first fan-out routing 202.

[0088] Fig.13 The diagram shows a film layer diagram of the first sub-first fan-out wiring 201 and the auxiliary wiring 40. Fig.12 and Fig.13 In an optional embodiment of the present invention, the auxiliary trace 40 is located on a side of the film layer where the first sub-segment is located that faces the substrate 00 .

[0089] Specifically, when the auxiliary routing line 40 is introduced in parallel to the first sub-first fan-out routing line 201, the auxiliary routing line 40 is arranged on the side of the first sub-segment 21 facing the substrate 00, that is, arranged on the side of the first sub-segment 21 away from the flat layer, so as to help avoid the influence of the introduction of the auxiliary routing line 40 on the flatness of the flat layer. Optionally, when the auxiliary routing line 40 is connected in parallel to the first sub-first fan-out routing line 201, the positive projection of the auxiliary routing line 40 on the substrate 00 is located on the side of the positive projection of the second sub-segment 22 on the substrate 00 facing the binding area A2. For example, the auxiliary routing line 40 can be connected in parallel with the second sub-segment 22 to avoid the auxiliary routing line 40 being arranged directly below the first sub-segment 21, so as to further help avoid the influence of the introduction of the auxiliary routing line 40 on the flatness of the flat layer in the display area A0 and its surrounding area.

[0090] Fig.14 FIG. 1 is another top view of a display panel provided by an embodiment of the present invention. Please refer to FIG. Fig.14In an optional embodiment of the present invention, the binding area A2 is bound with a control chip IC. Specifically, this embodiment shows a solution of directly binding the control chip IC to the binding area A2. The size of the control chip IC is small, and the size of the corresponding binding area A2 will also be small. In the related art, if the fan-out routing is converged to the position where the binding area A2 is located in the form of an oblique routing, the phenomenon of aggregation of a part of the line segments in the fan-out routing close to the display area A0 will be more obvious, and the impact on the flatness in the display area A0 will be more obvious. When the design of the present invention is adopted, the sub-segments in the first fan-out routing 20 are set to extend only along the first direction F1 and / or along the second direction F2, and the extension direction of the first sub-segment 21 close to the display area A0 is set to be the same as the extension direction of the first signal line 10, the aggregation phenomenon of the fan-out routing near the display area A0 is effectively reduced, so it is more conducive to avoiding the problem of thickness difference in the flat layer in the display area A0, so it is conducive to improving the display uniformity of the display panel.

[0091] Fig.15 Another top view of the display panel provided by an embodiment of the present invention is shown, and the embodiment shows a solution in which the display panel includes two binding areas A2 and the two binding areas A2 are respectively bound with a control chip IC. For a display panel with a widescreen structure, the number of first signal lines 10 is relatively large. If the fan-out lines corresponding to more first signal lines 10 are gathered in the same binding area A2, it is still possible to affect the thickness uniformity of the flat layer in the display area A0. At this time, two binding areas A2 can be set, and part of the first signal lines 10 are connected to the first binding area A2 through fan-out lines, and the other part of the first signal lines 10 are connected to the second binding area A2 through fan-out lines. In this way, the aggregation of fan-out lines near the display area A0 is avoided, which is also beneficial to improve the flatness of the flat layer in the display area A0, and then it is beneficial to improve the overall display effect of the display panel.

[0092] Of course, in some other embodiments of the present invention, the binding area A2 in the implementation of the present invention can also be bound to a flexible circuit board, and the control chip IC is further bound to the flexible circuit board. The design of the present invention can also improve the flatness of the flat layer in the display area A0 in the display panel of this structure, thereby improving the overall display uniformity of the display panel.

[0093] Fig.16 Another top view of the display panel provided by the embodiment of the present invention is shown. The embodiment of the present invention shows a solution of setting the binding area in the second frame area.

[0094] Please refer to Fig.16In an optional embodiment of the present invention, the non-display area includes a first border area Q1 and a second border area Q2 that are adjacent to each other, the first border area Q1 is located on at least one side of the display area A0 along the first direction F1, the second border area Q2 is located on at least one side of the display area A0 along the second direction F2, the binding area A2 is located in the second border area Q2, and the fan-out area A1 is located in the first border area Q1 and the second border area Q2.

[0095] Figure 2 , Fig.10 and Fig.14 The illustrated embodiment shows a scheme of setting the binding area A2 in the first border area Q1 of the display panel, that is, the lower border area. In addition, the embodiment of the present invention is also applicable to a scheme of setting the binding area A2 in the second border area Q2 of the display panel (the left border or the right border of the display panel). At this time, the display panel can be, for example, a display panel with a widescreen structure, that is, the width of the display panel along the second direction F2 is greater than its width along the first direction F1. When the binding area A2 is set in the second border area Q2, the width of the lower border of the display panel can be reduced, thereby realizing a narrow lower border design of the display panel.

[0096] In an optional embodiment of the present invention, continue to refer to Fig.16 The first fan-out trace 20 also includes a fourth sub-segment 24 and a fifth sub-segment 25 located in the second frame area Q2, the fourth sub-segment 24 extends along the first direction F1, the fifth sub-segment 25 extends along the second direction F2, and the fourth sub-segment 24 is located between the fifth sub-segment 25 and the display area along the second direction F2; the first end of the fourth sub-segment 24 is electrically connected to the second sub-segment 22, and the other end of the fourth sub-segment 24 is connected to the conductive pad in the binding area A2 through the fifth sub-segment 25; along the second direction F2, the minimum distance between the fourth sub-segment 24 and the display area is D1, where D1≥0.2mm.

[0097] Specifically, when the binding area A2 is set in the second frame area Q2 of the display panel, in order to realize the electrical connection between the first signal line and the conductive pad of the binding area A2, the embodiment of the present invention introduces the fourth sub-segment 24 and the fifth sub-segment 25 in the second frame area Q2, wherein the fourth sub-segment 24 extends along the first direction F1, which is the same as the extension direction of the first signal line 20 in the display area, and the fifth sub-segment 25 extends along the second direction F2. In the second frame area Q2, the fifth sub-segment 25 is located between the fourth sub-segment 24 and the binding area A2. In this way, in the second frame area Q2, since the extension direction of the fourth sub-segment 24 close to the display area is the same as the extension direction of the first signal line 20 in the display area A0, the fifth sub-segment 25, which is different from the extension direction of the first signal line 20, is set away from the display area A0. When the distance between the fourth sub-segment 24 and the display area is too small, for example, less than 0.2 mm, the fifth sub-segment 25 is also close to the display area, and the amount of the flat layer gathered at the fifth sub-segment 25 is very likely to affect the thickness of the flat layer in the area close to the second frame area Q2 in the display area, which may cause the thickness of the flat layer in the display area A0 close to the second frame area Q2 to be less than the thickness of the flat layer in other positions in the display area, resulting in uneven display. When the minimum distance between the fourth sub-segment 24 and the display area A0 is set to be greater than or equal to 0.2 mm, the distance between the fourth sub-segment 24 and the display area A0 is increased. Even if the flat layer gathers in the area of ​​the fifth sub-segment 25, due to the long distance between the position where the flat layer gathers and the display area, it will only cause the flat layer in the fan-out area A1 around the gathering position to be thinner, and will not affect the position of the display area, so it will not affect the flatness of the flat layer in the display area, so it avoids the problem of uneven display in the display area due to uneven flatness of the flat layer, so it is beneficial to improve the overall display uniformity of the display panel.

[0098] Optionally, D1 ≥ 0.5 mm, which further increases the distance between the fourth sub-segment 24 and the display area, and is more conducive to avoiding the influence of the flat layer gathered at the fifth sub-segment 25 on the thickness of the flat layer in the display area, and is therefore more conducive to improving the problem of uneven thickness of the flat layer in the display area, and is more conducive to improving the overall display uniformity of the display panel.

[0099] It should be noted that Fig.16 The illustrated embodiment only shows a solution in which the fan-out wiring is routed from the lower frame area of ​​the display panel to the right frame area. In some other embodiments of the present invention, the fan-out wiring can also be routed from the upper frame area and the lower frame area of ​​the display panel to the right frame area respectively. For example, please refer to Fig.17 The method of routing the fan-out lines separately from the upper and lower frames is beneficial to avoid the problem that the fan-out lines are concentrated on one side of the frame, which may cause the frame width to increase, thereby improving the consistency of the frame width of the display panel. Fig.17FIG. 1 is another top view of a display panel provided by an embodiment of the present invention.

[0100] It should be noted that for Fig.16 and Fig.17 The solution of the embodiment can also refer to Fig.12 The illustrated embodiment adds auxiliary routing lines to reduce the impedance difference between different first fan-out routing lines, which will not be described in detail in the present invention.

[0101] Optionally, the fourth subsegment is arranged on the same layer as the first signal line, for example, on the second metal layer, and the fifth subsegment is arranged on a side of the fourth subsegment facing the substrate, for example, on the first metal layer or the light shielding metal layer.

[0102] Based on the same inventive concept, the present invention also provides a display device, Fig.18 FIG. 1 is a schematic diagram of a structure of a display device provided by an embodiment of the present invention. Please refer to FIG. Fig.18 The display device 200 includes the display panel 100 provided by the above embodiment of the present invention.

[0103] It is understandable that the display device provided in the embodiment of the present invention can be a computer, a mobile phone, a tablet or other display device with a display function, and is particularly suitable for a display device with a widescreen structure. The present invention does not specifically limit this. The display device provided in the embodiment of the present invention has the beneficial effects of the display panel provided in the embodiment of the present invention. For details, please refer to the specific description of the display panel in the above embodiments, and this embodiment will not be repeated here.

[0104] It can be seen from the above embodiments that the display panel and the display device provided by the present invention achieve at least the following beneficial effects:

[0105] In the display panel and display device provided by the present invention, a fan-out area and a binding area are provided in the non-display area on the same side of the display area, and a first signal line extending along a first direction and arranged along a second direction in the display area is electrically connected to a conductive pad in the binding area through a fan-out line in the fan-out area, wherein the first direction can be regarded as a column direction, and the second direction can be regarded as a row direction. Since the fan-out area is located between the display area and the binding area, and the fan-out area is arranged adjacent to the binding area, the layout of the fan-out lines in the fan-out area, especially the layout of the fan-out lines in the area of ​​the fan-out area close to the display area, will affect the coating flatness of the flat layer in the display area. The present invention improves the wiring method of the first fan-out routing in the fan-out area, specifically, the first fan-out routing is set to include only sub-segments extending along the first direction and / or extending in the second direction, that is, the first fan-out routing only includes sub-segments extending along the row direction, and / or, only includes sub-segments extending along the column direction, and does not include obliquely arranged sub-segments, the sub-segments include electrically connected first sub-segments and second sub-segments, in the same first fan-out routing, the first sub-segment is located between the second sub-segment and the display area, the first sub-segment extends along the first direction and is electrically connected to the first signal line. In other words, in the first fan-out routing of the fan-out area, the extension direction of the line segment close to the display area and connected to the first signal line is the same as the extension direction of the first signal line. When a flat layer is formed on a display panel, the flat layer is usually arranged on the side of the fan-out line facing the light-emitting surface of the display panel. When the fan-out line in the fan-out area adopts an inclined wiring method, the fan-out line will be gathered in the area close to the display area in the fan-out area. In the area where the fan-out lines are gathered, the coated flat layer will also be gathered in the area where the fan-out lines are gathered, resulting in the thinning of the flat layer in the area close to the fan-out area on one side of the display area, thereby causing the problem of poor flatness of the flat layer in the display area. When the present invention sets the first sub-segment connected to the first signal line to be the same as the extension direction of the first signal line, the coated flat layer will not be gathered in the area of ​​the binding area close to the display area, thereby avoiding the problem of missing flat layer in some areas of the display area close to the fan-out area, so it is beneficial to improve the flatness of the flat layer in the display area, and then it is beneficial to improve the display uniformity of the display panel.

[0106] Although some specific embodiments of the present invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A display panel, characterized in that: The display panel comprises a display area and a non-display area arranged outside the display area, wherein the non-display area comprises a fan-out area and a binding area; the display panel comprises a substrate, the fan-out area comprises a plurality of fan-out traces arranged on one side of the substrate, and the binding area comprises a plurality of conductive pads arranged on one side of the substrate; The display area is provided with a plurality of first signal lines extending along a first direction and arranged along a second direction, the first direction and the second direction intersect, and the first signal lines are electrically connected to the conductive pads through the fan-out wiring; The fan-out routing includes at least one first fan-out routing, the first fan-out routing only includes a sub-segment extending along the first direction and / or extending along the second direction, the sub-segment includes a first sub-segment and a second sub-segment, in the same first fan-out routing, the second sub-segment is located at a side of the first sub-segment facing the binding area, the first signal line is connected to the second sub-segment through the first sub-segment, the first sub-segment extends along the first direction, and the second sub-segment extends along the second direction; The non-display area includes a first border area and a second border area that are adjacent to each other, the first border area is located on at least one side of the display area along the first direction, the second border area is located on at least one side of the display area along the second direction, the binding area is located in the second border area, and the fan-out area is located in the first border area and the second border area.

2. The display panel according to claim 1, characterized in that: The first fan-out routing further includes a fourth sub-segment and a fifth sub-segment located in the second border area, the fourth sub-segment extends along the first direction, the fifth sub-segment extends along the second direction, and the fourth sub-segment is located between the fifth sub-segment and the display area along the second direction; A first end of the fourth subsegment is electrically connected to the second subsegment, and the other end of the fourth subsegment is connected to the conductive pad through the fifth subsegment.

3. The display panel according to claim 2, characterized in that: Along the second direction, a minimum distance between the fourth subsegment and the display area is D1, where D1≥0.2 mm.

4. The display panel according to claim 1, characterized in that: The width of the display panel along the second direction is greater than the width of the display panel along the first direction.

5. The display panel according to claim 1, characterized in that: The first border area includes a first border area A and a first border area B, and the first border area A and the first border area B are located on both sides of the display area along the first direction, and the fan-out area is located between the first border area A and the second border area, or the fan-out area is located between the first border area B and the second border area.

6. The display panel according to claim 1, characterized in that: The first border area includes a first border area A and a first border area B, wherein the first border area A and the first border area B are located on both sides of the display area along the first direction, and the fan-out area is located in the first border area A, the first border area B and the second border area.

7. The display panel according to claim 1, characterized in that: The display panel further comprises a first metal layer, a second metal layer and a flat layer arranged on one side of the substrate, wherein along a direction perpendicular to the substrate, the first metal layer is located between the substrate and the second metal layer, and the flat layer is located on a side of the second metal layer away from the substrate; The fan-out wiring is located on a side of the planar layer facing the substrate.

8. The display panel according to claim 1, characterized in that: At least part of the first sub-segments is disposed on the same layer as the first signal line.

9. The display panel according to claim 1, characterized in that: All parts of at least one of the first fan-out routing lines are arranged on the same layer.

10. The display panel according to claim 2, characterized in that: At least one of the fan-out routing lines only includes the first sub-segment, the second sub-segment, the fourth sub-segment and the fifth sub-segment, and the first sub-segment, the second sub-segment, the fourth sub-segment and the fifth sub-segment are arranged on the same layer.

11. The display panel according to claim 10, characterized in that: At least one of the fan-out routing lines only includes the first sub-segment, the second sub-segment, the fourth sub-segment and the fifth sub-segment, and the first sub-segment, the second sub-segment, the fourth sub-segment and the fifth sub-segment are all arranged on the same layer as the first signal line.

12. The display panel according to claim 7, characterized in that: The second sub-segment is arranged in a different layer from the first sub-segment, and the second sub-segment is located on a side of the first sub-segment facing the substrate.

13. The display panel according to claim 12, characterized in that: The display panel further includes a light-shielding metal layer, which is located on a side of the first metal layer facing the substrate, the first subsegment is located on the second metal layer, and the second subsegment is located on the first metal layer or the light-shielding metal layer.

14. The display panel according to claim 1, characterized in that: The first fan-out routing includes a first sub-first fan-out routing and a second sub-first fan-out routing, and the length of the first sub-first fan-out routing is greater than the length of the second sub-first fan-out routing; A line width of the first sub-first fan-out routing line is greater than a line width of the second sub-first fan-out routing line.

15. The display panel according to claim 1, characterized in that: The first fan-out routing includes a first sub-first fan-out routing and a second sub-first fan-out routing, and the length of the first sub-first fan-out routing is greater than the length of the second sub-first fan-out routing; The display panel further includes an auxiliary wiring, and the auxiliary wiring is connected in parallel with the first sub-first fan-out wiring.

16. The display panel according to claim 15, characterized in that: The auxiliary wiring is located on a side of the film layer where the first sub-segment is located that faces the substrate.

17. The display panel according to claim 1, characterized in that: Along the first direction, a connection point between the first fan-out line and the first signal line is located at a junction of the display area and the non-display area.

18. The display panel according to claim 1, characterized in that: The first signal line is a data line.

19. The display panel according to claim 1, characterized in that: The binding area is bound with a control chip.

20. A display device, characterized in that: The display panel comprises any one of claims 1 to 19.

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