Display panel and display device

Abstract

The utility model provides a display panel and a display device. The display panel comprises a display area and a frame area located on at least one side of the display area. The first insulating layer is arranged on one side of the substrate and extends from the display area to the frame area; the metal wires are sequentially arranged in the direction, close to the frame area, of the display area, the metal wires comprise a first area and a second area, the orthographic projection, on the first insulating layer, of the metal wires in the first area and the first insulating layer have an overlapping area, and the first insulating layer is not arranged under the metal wires in the second area; the distance between the metal wire closest to the second area in the first area and the metal wire closest to the first area in the second area is d1, the distance between the adjacent metal wires in the first area is d2, and 10d2 > = d1 > = 1.5 d2. According to the display panel, short circuit between two adjacent metal wires in the first area and the second area can be effectively prevented, so that the display quality of the display panel can be effectively improved.

Description

Technical Field

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

[0002] With the development of OLED, narrow borders are becoming more and more popular. Under the narrow borders, there is an area with a step difference under the touch trace. For example, there is an area without an organic layer (IJP) to fill it. The existence of the organic layer step difference area can easily lead to residues when the metal layer is patterned at the corresponding position, thus causing a short circuit. Utility Model Content

[0003] The utility model aims to solve one of the technical problems in the related art at least to a certain extent. To this end, one object of the utility model is to provide a display panel, which can effectively avoid the short circuit problem between metal wirings in the frame area.

[0004] In one aspect of the utility model, the utility model provides a display panel. According to an embodiment of the utility model, the display panel includes a display area and a frame area located at least on one side of the display area, the frame area includes: a substrate; a first insulating layer, the first insulating layer is arranged on one side of the substrate and extends from the display area to the frame area; a plurality of groups of metal traces, each group of the metal traces includes at least one metal layer, and the plurality of groups of the metal traces are arranged in sequence in the direction of the display area close to the frame area, the metal traces include a first area and a second area, the first area is located between the display area and the second area, the orthographic projection of the metal traces in the first area on the first insulating layer has an overlapping area with the first insulating layer, the first insulating layer is not arranged directly below the metal traces in the second area, the spacing between the metal traces in the first area closest to the second area and the metal traces in the second area closest to the first area is d1, and the spacing between adjacent metal traces in the first area is d2, wherein 10d2≥d1≥1.5d2. Therefore, by increasing the distance between two adjacent metal traces in the first zone and the second zone, even if there is a certain amount of metal residue in the gap between the two, a non-contact state can still be maintained, that is, a short circuit between the two adjacent metal traces in the first zone and the second zone can be effectively prevented, thereby effectively improving the display quality of the display panel.

[0005] According to an embodiment of the present utility model, 20 micrometers ≥ d1 ≥ 4.1 micrometers.

[0006] According to an embodiment of the present utility model, 20 micrometers ≥ d1 ≥ 7 micrometers.

[0007] According to an embodiment of the utility model, the display panel also includes: a second insulating layer, the second insulating layer is arranged on a side of the first insulating layer away from the substrate, the metal routing includes a first metal layer and a second metal layer, the second metal layer is arranged on a side of the second insulating layer away from the substrate, the first metal layer is arranged on a side of the second insulating layer close to the substrate, and the first metal layer of the first area is located between the first insulating layer and the second insulating layer, and the orthographic projection of the second metal layer on the substrate overlaps with the orthographic projection of the first metal layer on the substrate.

[0008] According to an embodiment of the present utility model, orthographic projections of all the metal traces on the first insulating layer are located within the first insulating layer.

[0009] According to an embodiment of the present invention, the orthographic projection of the second metal layer on the substrate substantially overlaps with the orthographic projection of the first metal layer on the substrate.

[0010] According to an embodiment of the present invention, at least for the metal routing located in the first zone closest to the second zone and the metal routing located in the second zone closest to the first zone, the orthographic projection of the second metal layer on the substrate is located within the orthographic projection of the first metal layer on the substrate and does not overlap.

[0011] According to an embodiment of the present invention, a distance between an edge line of an orthographic projection of the second metal layer on the substrate and an edge line of an orthographic projection of the first metal layer on the substrate is greater than or equal to 1.2 microns.

[0012] According to an embodiment of the present invention, the spacing d4 between the second metal layer in the metal routing located in the first zone closest to the second zone and the second metal layer in the metal routing located in the second zone closest to the first zone is greater than the spacing d1 between the metal routing located in the first zone closest to the second zone and the metal routing located in the second zone closest to the first zone.

[0013] According to an embodiment of the utility model, the first metal routing satisfies at least one of the following conditions: only for the metal routing located in the first zone closest to the second zone and the metal routing located in the second zone closest to the first zone, the orthographic projection of the second metal layer on the substrate is located within the orthographic projection of the first metal layer on the substrate and does not overlap; for all the metal routings, the orthographic projection of the second metal layer on the substrate is located within the orthographic projection of the first metal layer on the substrate and does not overlap, and the widths of all the first metal layers are the same; for all the metal routings, the orthographic projection of the second metal layer on the substrate is located within the orthographic projection of the first metal layer on the substrate and does not overlap, the width of the second metal layer in the metal routing in the first zone gradually decreases in the direction from the display zone to the second zone, and the width of the second metal layer in the metal routing in the second zone gradually increases in the direction from the first zone to the edge of the display panel.

[0014] According to an embodiment of the utility model, at least for the metal routing located in the first area closest to the second area and the metal routing located in the second area closest to the first area, the orthographic projection of the second metal layer on the substrate is close to the edge line of the display area and is located inside the orthographic projection of the first metal layer on the substrate, and the orthographic projection of the first metal layer on the substrate is away from the edge line of the display area and is located inside the orthographic projection of the second metal layer on the substrate.

[0015] According to an embodiment of the present invention, the orthographic projection of the second metal layer in the metal routing in the first zone closest to the second zone on the substrate does not overlap with the orthographic projection of the first metal layer in the metal routing in the second zone closest to the first zone on the substrate.

[0016] According to an embodiment of the utility model, the display panel also includes: a second insulating layer, the second insulating layer is arranged on a side of the first insulating layer away from the substrate, the metal wiring includes a first metal layer and a second metal layer, and the first metal layer and the second metal layer are arranged in the same layer and are located on a side of the second insulating layer close to the first insulating layer.

[0017] According to an embodiment of the present invention, the metal wiring farthest from the display area is not electrically connected to the other metal wirings.

[0018] In another aspect of the present invention, the present invention provides a display device. According to an embodiment of the present invention, the display device includes the display panel described above. As a result, the display device has higher reliability and better display quality. Those skilled in the art can understand that the display device has all the features and advantages of the display panel described above, and no further elaboration is given here. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 It is a structural schematic diagram of a display panel in one embodiment of the utility model;

[0021] Figure 2 yes Figure 1 A schematic diagram of the planar structure between the metal routing and the first insulating layer;

[0022] Figure 3 It is a structural schematic diagram of a display panel in the prior art;

[0023] Figure 4 yes Figure 3 SEM scanning image of the central structure.

[0024] Figure 5 is a structural schematic diagram of a display panel in another embodiment of the utility model;

[0025] Figure 6 yes Figure 5 A schematic diagram of the planar structure between the metal routing and the first insulating layer;

[0026] Figure 7 It is a structural schematic diagram of a display panel in another embodiment of the utility model;

[0027] Figure 8 It is a structural schematic diagram of a display panel in another embodiment of the utility model;

[0028] Fig. 9 It is a structural schematic diagram of a display panel in another embodiment of the utility model;

[0029] Fig.10 It is a structural schematic diagram of a display panel in another embodiment of the utility model;

[0030] Fig.11 It is a structural schematic diagram of a display panel in another embodiment of the utility model;

[0031] Fig.12 It is a structural schematic diagram of a display panel in another embodiment of the utility model;

[0032] Fig.13 It is a schematic diagram of the structural process of manufacturing a display panel in another embodiment of the utility model. DETAILED DESCRIPTION

[0033] The scheme of the utility model will be explained below in conjunction with the embodiments. It will be appreciated by those skilled in the art that the following embodiments are only used to illustrate the utility model and should not be considered as limiting the scope of the utility model. Where specific techniques or conditions are not indicated in the embodiments, the techniques or conditions described in the literature in this area or the product specifications are used. The reagents or instruments used are not indicated by the manufacturer and are all conventional products that can be obtained commercially.

[0034] The present invention is described below with reference to specific embodiments. It should be noted that these embodiments are merely illustrative and do not limit the present invention in any way.

[0035] In one aspect of the present invention, the present invention provides a display panel. According to an embodiment of the present invention, referring to Figure 1 and Figure 2The display panel includes a display area and a frame area located at least on one side of the display area, wherein the frame area includes: a substrate 100; a first insulating layer 210, wherein the first insulating layer 210 is disposed on one side of the substrate 100 and extends from the display area to the frame area; a plurality of groups of metal traces 300, wherein each group of metal traces 300 includes at least one metal layer (e.g., includes a first metal layer 310 and a second metal layer 320, wherein the plurality of groups of metal traces 300 are sequentially arranged in a direction in which the display area approaches the frame area, wherein the metal traces 300 include a first area S1 and a second area S2, wherein the first area S1 is located between the display area and the second area S2, and the metal traces 300 in the first area S1 are arranged on the first insulating layer 320; wherein the first metal layer 310 and the second metal layer 320 ... The orthographic projection on the first insulating layer 210 overlaps with the first insulating layer 210, and the first insulating layer 210 is not arranged directly below the metal wiring 300 in the second area S2 (that is, the metal wiring 300 in the second area S2 has no orthographic projection on the first insulating layer 210, or in other words, the orthographic projection of the metal wiring 300 in the second area S2 on the substrate does not overlap with the orthographic projection of the first insulating layer on the substrate), the spacing between the metal wiring 300 in the first area S1 closest to the second area S2 and the metal wiring 300 in the second area S2 closest to the first area S1 is d1, and the spacing between the metal wirings in the first area S1 is d2, wherein 10d2≥d1≥1.5d2, For example, d1=1.5d2, d1=2d2, d1=3d2, d1=4d2, d1=5d2, d1=6d2, d1=7d2, d1=8d2, d1=9d2, d1=10d2, etc. Therefore, by increasing the distance between two adjacent metal traces in the first area and the second area (i.e., the metal trace 300 located in the first area S1 closest to the second area S2 and the metal trace 300 located in the second area S2 closest to the first area S1), even if there is a certain amount of metal residue in the gap between the two, they can still maintain a non-contact state, that is, short circuit between the two adjacent metal traces in the first area and the second area can be effectively prevented, and thus the metal traces can be effectively prevented from short-circuiting. The display quality of the display panel is effectively improved; moreover, the above-mentioned design requirement of 10d2≥d1≥1.5d2 can effectively prevent the short circuit between the two adjacent metal traces in the first zone and the second zone without causing a significant impact on the width of the border zone, that is, the narrow border design of the display panel can still be achieved; in addition, since there is usually no residual metal filings between the adjacent metal traces in the first zone and the adjacent metal traces in the second zone, there is no need to increase the spacing between the adjacent metal traces in the first zone and the spacing between the adjacent metal traces in the second zone, that is, a smaller spacing can still be maintained, which helps to achieve the narrow border design of the display panel.

[0036] It should be noted that, in the above definition of the first zone and the second zone in the present invention, the first zone includes the gaps between the metal routings in the first zone, and the gaps between the metal routing 300 in the first zone S1 closest to the second zone S2 and the metal routing 300 in the second zone S2 closest to the first zone S1 (i.e., the gaps corresponding to the spacing d1); the second zone includes the gaps between the metal routings in the second zone.

[0037] At present, among all the metal traces in the display panel, the distance between two adjacent metal traces is basically the same, that is, d1 = d2, which is about 2.5 microns. Figure 3 and Figure 4 For two adjacent metal traces in the first area and the second area, since the metal trace in the first area is at the end of the first insulating layer, the step difference generated by the first insulating layer makes it easy for the metal trace, especially the second metal layer located at the upper layer when the first metal layer and the second metal layer are layered (both the first metal layer and the first insulating layer have step differences), to leave metal chips in the gap between the two metal traces in the second metal layer during the manufacturing process due to process reasons and other factors (such as Figure 3 The dashed box and Figure 4 ), resulting in the two being connected, and then causing a short circuit. However, there is usually no or very little metal shavings left between the first metal layers located in the lower layer, and the short circuit problem will not be caused. In short, the short circuit problem caused by the metal shavings left is usually caused by the second metal layer at the step difference of the first insulating layer in the first area. The technical solution of the utility model can effectively solve the above technical problems and prevent the occurrence of short circuits.

[0038] According to some embodiments of the utility model, there are no special requirements for the specific structure of the above-mentioned substrate, and those skilled in the art can flexibly select it according to the actual situation such as the specific product type of the display panel. In some embodiments, the substrate includes a substrate; a buffer layer, the buffer layer is arranged on one side of the substrate; a thin film transistor, the thin film transistor is arranged on the side of the buffer layer away from the substrate, wherein the thin film transistor includes a source, a gate, a source and a drain, and the specific structure of the thin film transistor can be a top gate structure or a bottom gate structure; various signal lines such as data signal lines, gate lines, power lines, and ground lines, and the data signal lines, gate lines, power lines, and ground lines can be arranged on the same layer as structures such as the source or gate.

[0039] According to some embodiments of the present invention, referring to Figure 1As shown, as described above, the orthographic projection of the metal routing 300 in the first zone S1 on the first insulating layer 210 has an overlapping area with the first insulating layer 210, specifically: the orthographic projection of the first part 01 of the metal routing 300 located in the first zone S1 closest to the second zone S2 on the first insulating layer is located in the first insulating layer 210, and the orthographic projection of the second part 02 of the metal routing 300 (the part close to the second zone S2) on the first insulating layer has no overlapping area with the first insulating layer 210, wherein there is no special requirement for the size of the second part, and technical personnel in this field can flexibly design it according to actual needs; except for the metal routing 300 located in the first zone S1 closest to the second zone S2, the orthographic projections of other metal routings 300 in the first zone on the first insulating layer 210 are all located in the first insulating layer 210.

[0040] According to some embodiments of the present invention, 20 microns ≥ d1 ≥ 4.1 microns, for example, d1 is 4.1 microns, 4.2 microns, 4.5 microns, 4.8 microns, 5.0 microns, 5.2 microns, 5.5 microns, 5.8 microns, 6 microns, 6.3 microns, 6.5 microns, 6.8 microns, 7 microns, 7.2 microns, 7.5 microns, 7.7 microns, 8 microns, 9 microns, 10 microns, 11 microns, 12 microns, 13 microns, 14 microns, 15 microns, 16 microns, 17 microns, 18 microns, 19 microns, 20 microns, etc. The above spacing can well prevent the residual metal chips from electrically connecting the metal wiring 300 located in the first area S1 closest to the second area S2 and the metal wiring 300 located in the second area S2 closest to the first area S1, thereby avoiding a short circuit between the two, and the design of the above spacing can still meet the design requirements of the display panel for the narrow frame of the frame area. Further, in some specific embodiments, 20 microns ≥ d1 ≥ 7 microns. In this way, the effect of avoiding short circuit is better and the product yield is higher.

[0041] According to some embodiments of the present invention, referring to Figure 1As shown, the display panel further includes: a second insulating layer 220, the second insulating layer 220 is arranged on the side of the first insulating layer 210 away from the substrate 100, the metal wiring 300 includes a first metal layer 310 and a second metal layer 320, the second metal layer 320 is arranged on the side of the second insulating layer 220 away from the substrate 100, the first metal layer 310 is arranged on the side of the second insulating layer 220 close to the substrate 100, and the first metal layer 310 of the first area S1 is located between the first insulating layer 210 and the second insulating layer 220, and the orthographic projection of the second metal layer 320 on the substrate 100 overlaps with the orthographic projection of the first metal layer 310 on the substrate 100. That is, the first metal layer and the second metal layer are arranged in layers, so that the good working performance of the metal wiring can be effectively guaranteed, and the short circuit between the two second metal layers in the two adjacent metal wirings in the first area and the second area can be effectively guaranteed.

[0042] There are no special requirements for the specific materials of the first insulating layer and the second insulating layer. Those skilled in the art can flexibly select applicable materials in the prior art according to actual conditions. In some embodiments, the first insulating layer can be a flat layer extending from the display area, and its forming material is an organic material (such as acrylic insulating organic material, etc.), or an inorganic material, such as silicon nitride, silicon oxide, silicon oxynitride and other materials. The material of the second insulating layer can be an organic material (such as acrylic insulating organic material, etc.), or an inorganic material, such as silicon nitride, silicon oxide, silicon oxynitride and other materials.

[0043] According to some embodiments of the present invention, referring to Figure 5 and Figure 6 , the orthographic projections of all metal traces 300 on the first insulating layer 210 are located in the first insulating layer 210, so that all metal traces are set in the first area, and the number of metal traces in the second area is 0. In this way, the first insulating layer is further extended in the direction away from the display area, thereby eliminating the step difference caused by the first insulating layer in the first area. Without the step difference, the residual metal chips caused by the step difference can be avoided (that is, no or less residual metal chips are generated), thereby further improving the problem of short circuit of the second metal layer, thereby improving the product yield.

[0044] According to some embodiments of the present invention, referring to Figure 1 and 5, the orthographic projection of the second metal layer 320 on the substrate 100 is substantially overlapped with the orthographic projection of the first metal layer 310 on the substrate 100. That is, the sizes of the first metal layer and the second metal layer are substantially the same, so that the same mask can be used when manufacturing the first metal layer and the second metal layer, thereby speeding up the manufacturing rate and reducing the manufacturing cost. At this time, the spacing d2 between the metal trace 300 located in the first area S1 closest to the second area S2 and the metal trace 300 located in the second area S2 closest to the first area S1 is the spacing between the first metal layer in the metal trace 300 located in the first area S1 closest to the second area S2 and the first metal layer in the metal trace 300 located in the second area S2 closest to the first area S1.

[0045] According to some embodiments of the present invention, referring to Figure 7 , Figure 8 and Fig. 9 , at least for the metal trace 300 located in the first area S1 closest to the second area S2 and the metal trace 300 located in the second area S2 closest to the first area S1, the orthographic projection of the second metal layer 320 on the substrate 100 is located within the orthographic projection of the first metal layer 310 on the substrate and does not overlap, that is, the second metal layer shrinks relative to the first metal layer, reducing its size. As a result, the spacing d4 between the second metal layer 320 in the metal trace 300 located in the first area S1 closest to the second area S2 and the second metal layer 320 in the metal trace 300 located in the second area S2 closest to the first area S1 can be further enlarged, thereby further avoiding the short circuit problem caused by metal scraps residue, improving the product yield, and relatively Figure 1 The structure in the display panel does not affect the border width, which means it still helps the display panel to meet the narrow border design requirements. Figure 7 In the embodiment, only the second metal layer 320 in the metal wiring 300 located in the first area S1 closest to the second area S2 and the second metal layer 320 in the metal wiring 300 located in the second area S2 closest to the first area S1 are retracted. Figure 8 The second metal layer in all metal routings is retracted and the size of the second metal layer is consistent, which can reduce the difficulty of the manufacturing process.

[0046] Optionally, in some embodiments of the present invention, referring to Figure 7 , Figure 8 and Fig. 9, the distance d3 between the edge line of the orthographic projection of the second metal layer 320 on the substrate and the edge line of the orthographic projection of the first metal layer 310 on the substrate (i.e., the size of the unilateral indentation of the second metal layer in the first zone) is greater than or equal to 1.2 microns. In this way, there is enough space in the process to design the indentation structure of the above-mentioned second metal layer, which is convenient for the implementation of the manufacturing process and will not affect the working effect of the second metal layer. Further, according to the above description, it can be seen that in this structure, due to the indentation setting of the above-mentioned second metal layer, the distance d4 between the second metal layer 320 in the metal wiring 300 located in the first zone S1 closest to the second zone S2 and the second metal layer 320 in the metal wiring 300 located in the second zone S2 closest to the first zone S1 is greater than d1, and d4 is greater than d2, wherein the size relationship between d1 and d2 needs to be determined according to the size value of d3.

[0047] Optionally, in some embodiments of the present invention, referring to Figure 7 , only for the metal routing 300 located in the first area S1 closest to the second area S2 and the metal routing 300 located in the second area S2 closest to the first area S1, the orthographic projection of the second metal layer 320 on the substrate 100 is located within the orthographic projection of the first metal layer 310 on the substrate 100 and does not overlap. In other words, only the width of the second metal layer 320 in the metal routing 300 in the first area S1 closest to the second area S2 and the width of the second metal layer 320 in the metal routing 300 in the second area S2 closest to the first area S1 are reduced so that they are retracted relative to the first metal layer, that is, the width of the second metal layer 320 in the metal routing 300 in the first area S1 closest to the second area S2 is smaller than the width of the second metal layer 320 in the metal routing 300 in the first area S1, and both are smaller than the width of the second metal layer 320 in the metal routing 300 in the second area S2. In this way, the distance d4 between the second metal layer 320 in the metal trace 300 located in the first area S1 closest to the second area S2 and the second metal layer 320 in the metal trace 300 located in the second area S2 closest to the first area S1 can be further enlarged, thereby further avoiding the short circuit problem caused by the residual metal chips, improving the product yield, and relatively Figure 1 The structure in the embodiment does not affect the frame width, that is, it still helps the display panel design requirements for narrow frame. In this embodiment, for the remaining metal traces 300, the orthographic projection of the first metal layer 310 on the substrate 100 can overlap with the orthographic projection of the first metal layer 310 on the substrate 100.

[0048] Optionally, in some embodiments of the present invention, referring to Figure 8, the width of all the first metal layers in the frame area is reduced, and the width of all the first metal layers is the same. In this way, the short circuit problem caused by the residual metal chips is further avoided and the product yield is improved. Since the size of the second metal layer is consistent, the difficulty of the manufacturing process can be reduced, and relatively Figure 1 The structure does not affect the border width, which means it still helps the display panel to meet the narrow border design requirements.

[0049] Optionally, in some embodiments of the present invention, referring to Fig. 9 For all metal traces 300, the orthographic projection of the second metal layer 320 on the substrate 100 is located within the orthographic projection of the first metal layer 310 on the substrate 100 and does not overlap, but the width of the second metal layer 320 in the metal trace 300 in the first area S1 gradually decreases in the direction from the display area to the second area S2 (that is, the unilaterally retracted dimension d3 of the second metal layer in the first area gradually increases), for example: the width of the second metal layer 320 in the metal trace 300 closest to the second area S2 in the first area S1 is half of the first metal layer 310 in the corresponding metal trace 300; and the width of the second metal layer 320 in the metal trace 300 in the second area S2 is gradually increased in the direction from the first area S1 to the edge of the display substrate, for example: the width of the second metal layer 320 in the metal trace 300 closest to the first area S1 in the second area S2 is half of the first metal layer 310 in the corresponding metal trace 300. In this way, there is enough space in the process to design the retracted structure of the second metal layer, which is convenient for the implementation of the manufacturing process and will not affect the working effect of the second metal layer. It can also further avoid the short circuit problem caused by metal chips residue, improve the product yield, and relatively Figure 1 The structure does not affect the border width, which means it still helps the display panel to meet the narrow border design requirements.

[0050] According to some embodiments of the present invention, referring to Fig.10In order to better solve the above short circuit problem, at least the second metal layer 320 in the metal wiring 300 located in the first area S1 closest to the second area S2 and the second metal layer 320 in the metal wiring 300 located in the second area S2 closest to the first area S1 can be staggered relative to the first metal layer, as follows: In some embodiments, the orthographic projection of the second metal layer 320 on the substrate 100 is close to the edge line I of the display area and is located inside the orthographic projection of the first metal layer 310 on the substrate 100, and the orthographic projection of the first metal layer 310 on the substrate 100 is away from the edge line K of the display area and is located at the second metal layer 320 on the substrate 100. The inside of the orthographic projection of the second metal layer, that is, the second metal layer moves a certain distance relative to the first metal layer in the direction away from the display area, so that the second metal layer 320 in the metal wiring 300 located in the first area S1 closest to the second area S2, away from the edge line J of the display area, falls into the first groove 201 of the second insulating layer (the first groove 201 refers to the groove generated by the second insulating layer 220 between the metal wiring 300 located in the first area S1 closest to the second area S2 and the metal wiring 300 located in the second area S2 closest to the first area S1, in other words, refers to the groove generated by the metal wiring 300 located in the first area S1 closest to the second area and the second insulating layer 220, as shown in FIG. Fig.10 As shown), even if the second metal layer in the metal trace 300 located in the first area S1 closest to the second area S2 has metal chips ( Fig.10 Due to the existence of the first groove and the above-mentioned staggered arrangement of the second metal layer in the metal wiring 300 located in the second area S2 closest to the first area S1, the metal chips will not go out beyond the first groove, thereby avoiding the contact between the metal chips and the second metal layer in the metal wiring 300 located in the second area S2 closest to the first area S1, thereby avoiding a short circuit.

[0051] Optional, such as Fig.10 As shown, the width of the first groove in the first area S1 is greater than that of the second groove 202 (the second groove 202 refers to the groove formed by the metal wiring 300 and the second insulating layer 220 in the first area S1). As mentioned above, this arrangement can better avoid the problem of short circuit.

[0052] Optional, such as Fig.10 As shown, the orthographic projection of the second metal layer 320 in the metal trace 300 located in the first zone closest to the second zone on the substrate 100 does not overlap with the orthographic projection of the first metal layer 310 in the metal trace located in the second zone closest to the first zone on the substrate 100. As described above, this arrangement can better avoid the problem of short circuit.

[0053] According to some embodiments of the present invention, the first metal layer and the second metal layer are both arranged in a double-layer position. As mentioned above, no metal chips will remain or only a small amount of metal chips will remain between the first metal layers below. Therefore, according to some embodiments of the present invention, referring to Fig.10 The first metal layer 310 and the second metal layer 320 are arranged in the same layer and are located on the side of the second insulating layer 220 close to the first insulating layer 210, that is, the second metal layer is also arranged in the same layer as the first metal layer. In this way, the short circuit problem between adjacent metal layers can still be avoided. Among them, the spacing between the first metal layer and the second metal layer can be flexibly adjusted as long as there is no short circuit. At the same time, the design of a narrow frame can also be considered, and the width design of d2 between the metal layers is retained.

[0054] According to some embodiments of the present invention, referring to Figure 1 , Figures 5 to 12 , the second area S2 includes one or two groups of metal traces 300. Thus, the first insulating layer can have a suitable length in the frame area, which helps to improve the performance of the display panel. In some embodiments, the second area S2 includes two groups of metal traces 300, that is, two groups of metal traces 300 farthest from the display area; in other embodiments, the second area may also include only one group of metal traces 300, that is, only the metal traces 300 farthest from the display area.

[0055] According to some embodiments of the present invention, referring to Figure 1 , Figures 5 to 12 , the metal trace 300 farthest from the display area (i.e., the metal trace 300 at the edge of the frame area, i.e. Fig.12 The metal traces in the dotted box are not electrically connected to the other metal traces. In this way, the metal traces 300 farthest from the display area (i.e., the metal traces 300 at the edge of the frame area) can be used as shielding protection to prevent the external environment from interfering with the electrical signals of other metal traces.

[0056] According to some embodiments of the present invention, the metal wiring is disposed in the same layer as the touch electrode in the touch panel, for example, the metal wiring is disposed in the same layer as the touch electrode TX or the touch electrode RX in the touch panel.

[0057] According to some embodiments of the present invention, the above-mentioned border area of ​​the present invention is located at least on one side of the display area, and a plurality of touch electrodes TX or touch electrodes RX are distributed in the first direction of the display area (for example, the border area is located below the display area, and a plurality of touch electrodes TX (for example, TX0, TX1, TX2, TX3, ..., TX14, TX15, etc.) are distributed in the first direction of the display area). There are no special requirements for the specific positions of the plurality of touch electrodes TX corresponding to the gap between the metal wiring 300 in the first area S1 closest to the second area S2 and the metal wiring in the second area S2 closest to the first area S1. Those skilled in the art can flexibly select according to actual conditions. In some embodiments, the gap between the metal wiring 300 in the first area S1 closest to the second area S2 and the metal wiring in the second area S2 closest to the first area S1 corresponds to TX12.

[0058] In another aspect of the present invention, the present invention provides a method for manufacturing the display panel described above, wherein the display panel comprises a display area and a frame area located at at least one side of the display area, Fig.13 The method for manufacturing a display panel includes the steps of manufacturing a border area, including:

[0059] S100: providing a substrate 100;

[0060] S200: forming a first insulating layer 210, wherein the first insulating layer 210 is on one side of the substrate 100 and extends from the display area to the frame area;

[0061] S300: forming a plurality of groups of metal routing lines 300, each group of metal routing lines 300 comprising a first metal layer 210 and a second metal layer 220, the plurality of groups of metal routing lines 300 being arranged in sequence in a direction in which the display area is close to the frame area, the metal routing lines 300 being divided into a first area S1 and a second area S2, the first area S1 being located between the display area and the second area S2, the orthographic projection of the metal routing lines 300 of the first area S1 on the first insulating layer 210 having an overlapping area with the first insulating layer 210, the first insulating layer 210 being not disposed directly below the metal routing lines 300 of the second area SS2, the spacing between the metal routing lines 300 of the first area S1 that are closest to the second area S2 and the metal routing lines of the second area S2 that are closest to the first area S1 is d1, the spacing between two adjacent first metal layers in the metal routing lines of the first area is d2, wherein 10d2≥d1≥1.5d2.

[0062] According to an embodiment of the utility model, in the above-mentioned manufacturing process, by increasing the distance between two metal traces adjacent to the first zone and the second zone, even if there is a certain amount of metal residue in the gap between the two, a non-contact state can still be maintained, that is, a short circuit between the two metal traces adjacent to the first zone and the second zone can be effectively prevented, thereby improving the manufacturing yield and production rate.

[0063] According to the embodiment of the present utility model, referring to Fig.13 and Fig.11 The method for manufacturing a display panel further includes: forming a second insulating layer 220, the second insulating layer 220 being formed on a side of the first insulating layer 210 away from the substrate 100, the metal traces including a first metal layer and a second metal layer, at this time, the first metal layer and the second metal layer have two setting modes, the first mode is a double-layer position setting, and the other mode is a same-layer position setting, specifically:

[0064] Reference Fig.12 , the second metal layer 320 is formed on the side of the second insulating layer 220 away from the substrate 100, the first metal 310 is formed on the side of the second insulating layer 220 close to the substrate 100, and the first metal layer 310 of the first area S1 is located between the first insulating layer 210 and the second insulating layer 220, and the orthographic projection of the second metal layer 320 on the substrate 100 overlaps with the orthographic projection of the first metal layer 310 on the substrate 100. The specific setting requirements of the first metal layer and the second metal layer can refer to 1, Figures 4 to 10 As described above, I will not repeat them one by one again.

[0065] Reference Fig.11 The first metal layer 310 and the second metal layer 320 are arranged in the same layer and are located on the side of the second insulating layer 220 close to the first insulating layer 210, that is, the second metal layer is also arranged in the same layer as the first metal layer. In this way, the short circuit problem between adjacent metal layers can still be avoided. Among them, the spacing between the first metal layer and the second metal layer can be flexibly adjusted as long as there is no short circuit. At the same time, the design of a narrow frame can also be considered, and the width design of d2 between the metal layers is retained.

[0066] In another aspect of the present invention, the present invention provides a display device. According to an embodiment of the present invention, the display device includes the display panel described above. As a result, the display device has higher reliability and better display quality. Those skilled in the art can understand that the display device has all the features and advantages of the display panel described above, and no further elaboration is given here.

[0067] According to the embodiments of the present invention, there are no special requirements for the specific type of the display device, and those skilled in the art can flexibly select it according to actual conditions. For example, the display device can be a mobile phone, computer, iPAD, kindle, game console, or any other display device with a display function.

[0068] Those skilled in the art will understand that, in addition to the display panel mentioned above, the display device also includes structures or components necessary for a conventional display device. Taking a mobile phone as an example, in addition to the above-mentioned display panel, it also includes a cover plate, a touch panel, a fingerprint film group, an audio module, a camera module, a CPU, a battery, a back cover, a middle frame and other necessary structures or components for a mobile phone.

[0069] 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 technical features indicated. Therefore, 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.

[0070] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0071] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A display panel, characterized in that: The display panel includes a display area and a frame area located on at least one side of the display area, and the frame area includes: substrate; A first insulating layer, which is disposed on one side of the substrate and extends from the display area to the frame area; A plurality of groups of metal routing lines, each group of the metal routing lines comprises at least one metal layer, the plurality of groups of the metal routing lines are sequentially arranged in a direction in which the display area approaches the frame area, the metal routing lines comprise a first area and a second area, the first area is located between the display area and the second area, the orthographic projection of the metal routing lines in the first area on the first insulating layer has an overlapping area with the first insulating layer, the first insulating layer is not provided directly below the metal routing lines in the second area, the spacing between the metal routing lines in the first area that are closest to the second area and the metal routing lines in the second area that are closest to the first area is d1, and the spacing between adjacent metal routing lines in the first area is d2, wherein 10d2≥d1≥1.5d2.

2. The display panel according to claim 1, characterized in that: 20 μm ≥ d1 ≥ 4.1 μm.

3. The display panel according to claim 1, characterized in that: 20 μm ≥ d1 ≥ 7 μm.

4. The display panel according to claim 1, characterized in that: Also includes: a second insulating layer, wherein the second insulating layer is arranged on a side of the first insulating layer away from the substrate, the metal trace comprises a first metal layer and a second metal layer, the second metal layer is arranged on a side of the second insulating layer away from the substrate, the first metal layer is arranged on a side of the second insulating layer close to the substrate, and the first metal layer of the first area is located between the first insulating layer and the second insulating layer, and an orthographic projection of the second metal layer on the substrate overlaps with an orthographic projection of the first metal layer on the substrate.

5. The display panel according to claim 1, characterized in that: The orthographic projections of all the metal traces on the first insulating layer are located within the first insulating layer.

6. The display panel according to claim 4, characterized in that: An orthographic projection of the second metal layer on the substrate substantially overlaps with an orthographic projection of the first metal layer on the substrate.

7. The display panel according to claim 4, characterized in that: At least for the metal trace located in the first area closest to the second area and the metal trace located in the second area closest to the first area, the orthographic projection of the second metal layer on the substrate is located within the orthographic projection of the first metal layer on the substrate and does not overlap.

8. The display panel according to claim 7, characterized in that: A distance between an edge line of an orthographic projection of the second metal layer on the substrate and an edge line of an orthographic projection of the first metal layer on the substrate is greater than or equal to 1.2 micrometers.

9. The display panel according to claim 7, characterized in that: The spacing d4 between the second metal layer in the metal routing located in the first area closest to the second area and the second metal layer in the metal routing located in the second area closest to the first area is greater than the spacing d1 between the metal routing located in the first area closest to the second area and the metal routing located in the second area closest to the first area.

10. The display panel according to claim 7, characterized in that: The metal routing meets at least one of the following conditions: Only for the metal trace located in the first area closest to the second area and the metal trace located in the second area closest to the first area, the orthographic projection of the second metal layer on the substrate is located within the orthographic projection of the first metal layer on the substrate and does not overlap; For all the metal traces, the orthographic projection of the second metal layer on the substrate is located within the orthographic projection of the first metal layer on the substrate and does not overlap, and the widths of all the first metal layers are the same; For all the metal routings, the orthographic projection of the second metal layer on the substrate is located within the orthographic projection of the first metal layer on the substrate and does not overlap, the width of the second metal layer in the metal routings in the first area gradually decreases in the direction from the display area to the second area, and the width of the second metal layer in the metal routings in the second area gradually increases in the direction from the first area to the edge of the display panel.

11. The display panel according to claim 4, characterized in that: At least for the metal routing located in the first area closest to the second area and the metal routing located in the second area closest to the first area, the orthographic projection of the second metal layer on the substrate is close to the edge line of the display area and is located inside the orthographic projection of the first metal layer on the substrate, and the orthographic projection of the first metal layer on the substrate is away from the edge line of the display area and is located inside the orthographic projection of the second metal layer on the substrate.

12. The display panel according to claim 10, characterized in that: An orthographic projection of the second metal layer in the metal routing in the first area closest to the second area on the substrate does not overlap with an orthographic projection of the first metal layer in the metal routing in the second area closest to the first area on the substrate.

13. The display panel according to claim 1, characterized in that: Also includes: The second insulating layer is arranged on a side of the first insulating layer away from the substrate, the metal trace comprises a first metal layer and a second metal layer, and the first metal layer and the second metal layer are arranged on the same layer and located on a side of the second insulating layer close to the first insulating layer.

14. The display panel according to any one of claims 1 to 13, characterized in that: The metal wiring farthest from the display area is not electrically connected to the other metal wirings.

15. A display device, characterized in that: A display panel comprising any one of claims 1 to 14.

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