Display panel and display device

By arranging non-overlapping first and second routing layers in the display panel, the facing area and parasitic capacitance between the routings are reduced, the problem of signal delay in the display panel is solved, and the display effect is improved.

CN117457689BActive Publication Date: 2025-09-09TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202311702956.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-12-12
Publication Date
2025-09-09
Estimated Expiration
2043-12-12

AI Technical Summary

Technical Problem

In existing display panels, the source fanout and gate fanout traces enter the panel from the same side, resulting in a large area of ​​intersection and generating large parasitic capacitance, which affects signal delay and degrades display quality.

Method used

In the display panel, a first routing layer and a second routing layer are provided. The first routing layer and the second routing layer do not overlap along the thickness direction of the display panel. The first line segment extending obliquely does not overlap with the second routing layer, thereby reducing the facing area and parasitic capacitance.

Benefits of technology

By reducing the overlapping area and parasitic capacitance between the first wiring and the second wiring, signal transmission delay is improved and the display effect of the display panel is enhanced.

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Abstract

The present invention discloses a display panel and a display device; wherein, a first routing layer includes a plurality of first routing lines arranged in a fan-out routing area and arranged at intervals, the first routing line including a first line segment extending along a first direction and a second line segment extending along a second direction, the second line segment connected between the first line segment and a signal line located in the display area, the second direction being the direction from the fan-out routing area to the display area, and the first direction and the second direction intersecting; a second routing layer is arranged on one side of the first routing layer and is insulated from the first routing layer, the second routing layer including a plurality of second routing lines arranged in the fan-out routing area and arranged at intervals; the first line segment and the second routing line do not overlap along the thickness direction of the display panel, and the second line segment and the second routing line at least partially overlap along the thickness direction of the display panel; the present invention can reduce parasitic capacitance between the first routing line and the second routing line, improve signal transmission delay, and enhance the display effect of the display panel.
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Description

Technical Field

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

[0002] Currently, display panels typically use an integrated IC, meaning both the source fanout and gate fanout traces enter the panel from the same side. Due to IC pin limitations and alignment requirements with in-plane signal lines, the source fanout and gate fanout traces inevitably intersect over a large area, generating significant direct capacitance. This increases the parasitic capacitance of the entire fan-out area, leading to severe signal delays in the scan and data lines, further impacting the display quality of the panel. Summary of the Invention

[0003] Embodiments of the present invention provide a display panel and a display device, which can reduce the overlapping area between a first wiring and a second wiring, thereby reducing parasitic capacitance.

[0004] An embodiment of the present invention provides a display panel, comprising a display area and a fan-out wiring area located on one side of the display area; wherein the display panel further comprises:

[0005] a first routing layer including a plurality of first routing lines arranged in the fan-out routing area and spaced apart from each other, the first routing lines including a first line segment extending along a first direction and a second line segment extending along a second direction, the second line segment being connected between the first line segment and a signal line located in the display area, the second direction being a direction from the fan-out routing area to the display area, and the first direction intersecting the second direction;

[0006] a second routing layer, arranged on one side of the first routing layer and insulated from the first routing layer, the second routing layer comprising a plurality of second routing lines arranged in the fan-out routing area and spaced apart;

[0007] The first line segment and the second routing line do not overlap in the thickness direction of the display panel, and the second line segment and the second routing line at least partially overlap in the thickness direction of the display panel.

[0008] In one embodiment of the present invention, the display panel further includes a driving component, the first wiring is connected between the driving component and the signal line, and the second wiring is connected between the driving component and the signal line;

[0009] The first line further includes a third line segment connected between the driving component and the first line segment. The extension direction of the third line segment is different from the extension direction of the first line segment, and the third line segment does not overlap with the second line along the thickness direction of the display panel.

[0010] In one embodiment of the present invention, the second trace includes a fourth line segment connected to the driving component, a sixth line segment connected to the signal line, and a fifth line segment connected between the fourth line segment and the sixth line segment;

[0011] The first line segment is parallel to the fifth line segment, the third line segment is parallel to the fourth line segment, and the second line segment is partially overlapped with the fifth line segment along the thickness direction of the display panel.

[0012] In an embodiment of the present invention, the third line segment and the fourth line segment extend along the second direction.

[0013] In one embodiment of the present invention, at least one fourth line segment is located between two adjacent third line segments, and at least one fifth line segment is located between two adjacent first line segments.

[0014] In an embodiment of the present invention, the connection points of the first line segment and the third line segment in the plurality of first lines, and the connection points of the fourth line segment and the fifth line segment in the plurality of second lines are all located on the same straight line.

[0015] In one embodiment of the present invention, multiple first routing lines are arranged at intervals between the display area and the driving component, and the multiple first routing lines include an outermost edge first routing line, the length of the first line segment in the first routing line close to the edge first routing line is greater than the length of the first line segment in the first routing line away from the edge first routing line, the length of the second line segment in the first routing line close to the edge first routing line is greater than the length of the second line segment in the first routing line away from the edge first routing line, and the length of the third line segment in the first routing line close to the edge first routing line is less than the length of the third line segment in the first routing line away from the edge first routing line.

[0016] In one embodiment of the present invention, the sixth line segment includes a first connection portion connected to the fifth line segment, a second connection portion connected to the signal line, and a third connection portion connected between the first connection portion and the second connection portion, and the third connection portion includes a bow-shaped trace;

[0017] The first connection portion and the second connection portion extend along the second direction, and the second line segment is located between two adjacent third connection portions.

[0018] In an embodiment of the present invention, among the plurality of first lines, the spacing between adjacent first line segments is equal, the spacing between adjacent second line segments is equal, and the spacing between adjacent third line segments is equal.

[0019] In one embodiment of the present invention, the signal lines include multiple data lines and multiple scan lines arranged in the display area, and multiple first lines are correspondingly connected to multiple scan lines, and multiple second lines are correspondingly connected to multiple data lines.

[0020] In one embodiment of the present invention, the plurality of scan lines include a plurality of first scan lines extending along the second direction and arranged along a third direction, and a plurality of second scan lines extending along the third direction and arranged along the second direction, the third direction intersects with the second direction, and the plurality of first routing lines are correspondingly connected to the plurality of first scan lines.

[0021] According to the above-mentioned purpose of the present invention, an embodiment of the present invention further provides a display device, which includes the display panel.

[0022] Beneficial effect: The present invention sets the first line segment extending obliquely in the first routing line so as not to overlap with the second routing line, thereby reducing the overlapping area between the first routing line and the second routing line, that is, reducing the facing area between the first routing line and the second routing line, reducing the parasitic capacitance between the first routing line and the second routing line, improving the phenomenon of signal transmission delay, and improving the display effect of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The technical solutions and other beneficial effects of the present invention will be made apparent by describing in detail the specific embodiments of the present invention in conjunction with the accompanying drawings.

[0024] Figure 1 Provides a fan-out wiring distribution diagram for display panels for related technologies;

[0025] Figure 2 Provided for related technologies Figure 1 The local enlarged structure diagram at point a in the middle;

[0026] Figure 3 Provided for related technologies Figure 1 The local enlarged structure diagram at point b in the middle;

[0027] Figure 4 Provided for related technologies Figure 1 The local enlarged structure diagram at point c in the middle;

[0028] Figure 5A schematic diagram of a planar distribution of a display panel provided by an embodiment of the present invention;

[0029] Figure 6 The embodiment of the present invention provides Figure 5 A local enlarged structural diagram at point A in the middle;

[0030] Figure 7 The embodiment of the present invention provides Figure 5 Schematic diagram of the distribution of the first trace at A in the middle;

[0031] Figure 8 The embodiment of the present invention provides Figure 5 A local enlarged structural diagram at point B in the middle;

[0032] Figure 9 A distribution structure diagram of the first routing and the second routing provided in an embodiment of the present invention;

[0033] Figure 10 The embodiment of the present invention provides Figure 5 A partial enlarged structural diagram at point C in the middle. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of the present invention.

[0035] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0036] Please combine Figure 1 、 Figure 2 、 Figure 3 as well as Figure 4In a display panel with an integrated IC, a gate fanout trace 1 and a source fanout trace 2 are simultaneously provided within a fan-out trace area of ​​the display panel. Due to trace layout requirements and alignment requirements between gate fanout trace 1 and source fanout trace 2 and in-plane signal lines, a large amount of overlap occurs between gate fanout trace 1 and source fanout trace 2. For example, there is a large horizontal overlap area between the diagonal gate fanout trace 1 and source fanout trace 2, resulting in a large positive capacitance between gate fanout trace 1 and source fanout trace 2. This increases the parasitic capacitance of the entire fan-out area of ​​the display, causing severe signal delays in gate fanout trace 1 and source fanout trace 2, as well as in the signal lines connected to the in-plane, further affecting the display quality of the display panel.

[0037] Please combine Figure 5 as well as Figure 6 An embodiment of the present invention provides a display panel, which includes a display area 101 and a fan-out wiring area 102 located on one side of the display area 101.

[0038] The display panel also includes a first routing layer and a second routing layer; the first routing layer includes a plurality of first routing lines 10 arranged in a fan-out routing area 102 and arranged at intervals, the first routing line 10 includes a first line segment 11 extending along a first direction P and a second line segment 12 extending along a second direction N, the second line segment 12 is connected between the first line segment 11 and the signal line in the display area 101, the second direction N is the direction from the fan-out routing area 102 to the display area 101, and the first direction P intersects with the second direction N; the second routing layer is arranged on one side of the first routing layer and is insulated from the first routing layer, the first routing layer includes a plurality of second routing lines 20 arranged in the fan-out routing area 102 and arranged at intervals.

[0039] The first line segment 11 and the second trace 20 do not overlap along the thickness direction of the display panel, and the second line segment 12 and the second trace 20 partially overlap along the thickness direction of the display panel.

[0040] During the implementation and application process, the embodiment of the present invention sets the first line segment 11 extending obliquely in the first line 10 to not overlap with the second line 20. Compared with the related art, the overlapping area between the first line segment 11 and the second line 20 in the horizontal direction can be reduced, and the overlapping area between the first line 10 and the second line 20 can be reduced, that is, the facing area between the first line 10 and the second line 20 is reduced, the parasitic capacitance between the first line 10 and the second line 20 is reduced, the signal transmission delay phenomenon is improved, and the display effect of the display panel is improved.

[0041] Specifically, please continue to combine Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 as well as Figure 9 The display panel includes a display area 101, a fan-out wiring area 102 located on one side of the display area 101, and a driving component 30 located on a side of the display area 101 close to the fan-out wiring area 102. It should be noted that the embodiment of the present invention does not limit the number of fan-out wiring areas in the display panel. In the embodiment of the present invention, a fan-out wiring area 102 located on one side of the display area 101 is used as an example for explanation.

[0042] In one embodiment, the driving component 30 is disposed on a side of the fan-out wiring area 102 away from the display area 101 .

[0043] Furthermore, the display panel also includes a first routing layer and a second routing layer arranged at intervals, and at least one insulating layer (not shown in the figure) may be spaced between the first routing layer and the second routing layer; wherein the first routing layer includes a plurality of first routing lines 10 arranged in the fan-out routing area 102, and the second routing layer includes a second routing line 20 arranged in the fan-out routing area 102.

[0044] Among them, multiple first routing lines 10 are arranged at intervals in the fan-out routing area 102 and are connected between the driving component 30 and the signal line in the display area 101; multiple second routing lines 20 are arranged at intervals in the fan-out routing area 102 and are connected between the driving component 30 and the signal line in the display area 101; and the multiple first routing lines 10 and the multiple second routing lines 20 are arranged with intervals and insulation.

[0045] The first trace 10 includes a third segment 13 connected to the driving component 30 , a second segment 12 connected to the signal line in the display area 101 , and a first segment 11 connected between the second segment 12 and the third segment 13 .

[0046] In the embodiment of the present invention, the first line segment 11 extends along a first direction P, the second line segment 12 extends along a second direction N, and the first direction P intersects the second direction N. The second direction N is the direction from the fan-out routing area 102 to the display area 101. That is, the first line segment 11 extends in an oblique direction, and the extension direction of the third line segment 13 is different from the extension direction of the first line segment 11.

[0047] In one embodiment, the third line segment 13 extends along the second direction N, that is, one end of the first line 10 is connected to the driving component 30, and the other end first extends along the positive direction pointing to the display area 101, then extends along the oblique direction deviated from the positive direction and can be aligned with the in-plane signal line, and then extends along the positive direction to connect to the signal line in the display area 101. Since the width of the driving component 30 is smaller than the width of the display area 101, it is located Figure 5 The first line 10 connected to the left side of the driving assembly 30 extends obliquely toward the left side, and the Figure 5 The first line 10 connected to the right side of the driving component 30 extends obliquely toward the right, and the first line 10 connected to the left side of the driving component 30 and the first line 10 connected to the right side of the driving component 30 can be arranged axially symmetrically.

[0048] Similarly, one end of the second trace 20 is connected to the driving component 30, and the other end first extends in a positive direction pointing to the display area 101, then extends in an oblique direction that is deviated from the positive direction and can be aligned with the signal line in the display area 101, and then extends in the positive direction to connect to the signal line in the display area 101. Since the width of the driving component 30 is smaller than the width of the display area 101, it is located Figure 5 The second line 20 connected to the left side of the driving assembly 30 extends obliquely toward the left side, and the second line 20 located at Figure 5 The second line 20 connected to the right side of the driving component 30 extends obliquely toward the right, and the second line 20 connected to the left side of the driving component 30 and the second line 20 connected to the right side of the driving component 30 can be arranged axially symmetrically.

[0049] In the implementation of the present invention, the first line segment 11 and the second line 20 do not overlap along the thickness direction of the display panel, and the second line segment 12 and the second line 20 partially overlap along the thickness direction of the display panel; in the embodiment of the present invention, since the plurality of first lines 10 and the plurality of second lines 20 are located in the fan-out line area 102, and the positions where the plurality of first lines 10 need to be connected to the display area 101 are different from the positions where the plurality of second lines 20 need to be connected to the display area 101, it is impossible for the plurality of first lines 10 and the plurality of second lines 20 to be arranged in parallel. In order to meet the requirements of arrangement and alignment, there will inevitably be overlap between the first lines 10 and the second lines 20. Figure 1 、 Figure 2 as well as Figure 3 In the related art shown, since the distances between the oblique Gate fanout trace 1 and the oblique Source fanout trace 2 are both long, and they are also the line segments that determine the connection points between the Gate fanout trace 1 and the Source fanout trace 2 and the display area, in order to facilitate the alignment of the Gate fanout trace 1 and the Source fanout trace 2 with the signal lines in the display area, the oblique Gate fanout trace 1 and the oblique Source trace 2 are connected to the display area. There is a significant horizontal overlap between the fanout lines 2. In the embodiment of the present invention, the first line 10 extends to different locations via a diagonal first line segment 11, allowing alignment with signal lines at different locations within the display area 101. To address the significant overlap between the first line segment 11 and the fifth line segment 22 of the second line 20 due to alignment requirements, the embodiment of the present invention adds and extends a second line segment 12 to the first line 10. This allows the first line segment 11 to extend only to intersect a straight line passing through the connection point and extending in a second direction N, rather than extending to the corresponding signal line connection point. The straight line then extends along the second direction N and connects to the signal line within the display area 101. Therefore, by ensuring that the diagonally extending first line segment 11 does not overlap with the second line 20, the embodiment of the present invention effectively reduces the area of ​​direct contact between the first and second lines 10, 20.

[0050] Furthermore, among the multiple first lines 10, the area of ​​the first line segment 11 extending along the first direction P is the largest, and is larger than the area of ​​the second line segment 12 extending along the second direction N, and is also larger than the area of ​​the third line segment 13 extending along the second direction N. Therefore, the embodiment of the present invention ensures that the first line segment 11 does not overlap with the second line 20, and reserves the overlapping part for the second line segment 12 with a smaller area, which can effectively reduce the facing area and parasitic capacitance between the first line 10 and the second line 20; in addition, the second line segment 12 extends along the second direction N, rather than extending obliquely, thereby reducing the overlapping area between the second line segment 12 and the second line 20 in the horizontal direction, and can effectively reduce the overlapping area between the second line segment 12 and the second line 20, so as to further reduce the parasitic capacitance between the first line 10 and the second line 20.

[0051] In addition, the third line segment 13 and the second line 20 do not overlap along the thickness direction of the display panel, thereby further reducing the parasitic capacitance and overlapping area between the first line 10 and the second line 20 .

[0052] In the embodiment of the present invention, the second trace 20 includes a fourth segment 21 connected to the driving component 30 , a sixth segment 23 connected to the display area 101 , and a fifth segment 22 connected between the fourth segment 21 and the sixth segment 23 .

[0053] In one embodiment, the first line segment 11 and the fifth line segment 22 are parallel and both extend along the first direction P, and the third line segment 13 and the fourth line segment 21 are parallel and both extend along the second direction N; wherein, at least one fifth line segment 22 is located between two adjacent first line segments 11, and at least one fourth line segment 21 is located between two adjacent third line segments 13, and in the embodiment of the present invention, every two fifth line segments 22 are located between two adjacent first line segments 11, and every two fourth line segments 21 are located between two adjacent third line segments 13 as an example for description.

[0054] Among them, on the basis that the first line segment 11 and the fifth line segment 22 are parallel, and the third line segment 13 and the fourth line segment 21 are parallel, combined with the fact that the connection points of the first line segments 11 and the third line segments 13 in the plurality of first routing lines 10, and the connection points of the fourth line segments 21 and the fifth line segments 22 in the plurality of second routing lines 20 are all located on the same straight line, it can be achieved that the first line segment 11 and the second routing lines 20 do not overlap, and the third line segment 13 and the second routing lines 20 do not overlap.

[0055] Furthermore, the plurality of first routing lines 10 include an outermost edge first routing line 110. It is understandable that the plurality of first routing lines 10 are distributed on the left and right sides of the fan-out routing area 102, and may further include two edge first routing lines 110 located on the left and right sides, respectively. In the diagram of the present invention, only the leftmost edge first routing line 110 is used as an example for illustration.

[0056] Among them, the length of the first line segment 11 in the first route 10 close to the edge of the first route 110 is greater than the length of the first line segment 11 in the first route 10 away from the edge of the first route 110, the length of the second line segment 12 in the first route 10 close to the edge of the first route 110 is greater than the length of the second line segment 12 in the first route 10 away from the edge of the first route 110, and the length of the third line segment 13 in the first route 10 close to the edge of the first route 110 is less than the length of the third line segment 13 in the first route 10 away from the edge of the first route 110; it should be noted that the lengths of multiple first routes 10 can be made consistent by adjusting the lengths of the first line segments 11, the second line segments 12 and the third line segments 13 in different first routes 10, so as to reduce the occurrence of signal transmission abnormalities caused by different impedances of different first routes 10.

[0057] In one embodiment, among the plurality of first traces 10 , the spacing between adjacent first segments 11 is equal, the spacing between adjacent second segments 12 is equal, and the spacing between adjacent third segments 13 is equal.

[0058] In one embodiment, see Figure 10 The sixth line segment 23 includes a first connection portion 231 connected to the fifth line segment 22, a second connection portion 232 connected to the display area 101, and a third connection portion 233 connected between the first connection portion 231 and the second connection portion 232, and the third connection portion 233 includes a bow-shaped routing, wherein the third connection portion 233 is a bow-shaped routing, and then the bow-shaped routing can be used to flexibly adjust the length difference between different second routings 20, so that the lengths of multiple second routings 20 tend to be consistent, thereby reducing the impedance difference between the multiple second routings 20 and improving the uniformity of signal transmission; wherein, the length of the third connection portion 233 in the second routing 20 close to the center line of the display area 101 is greater than the length of the third connection portion 233 in the second routing 20 away from the center line of the display area 101.

[0059] In other embodiments of the present invention, the third connection portion 233 may also include a wave shape or a broken line shape.

[0060] Among them, the first connecting portion 231 and the second connecting portion 232 extend along the second direction N, and the second line segment 12 is located between two adjacent third connecting portions 233, so that the second line segment 12 and the sixth line segment 23 do not overlap, thereby further reducing the overlapping area between the first routing line 10 and the second routing line 20, and reducing the parasitic capacitance between the first routing line 10 and the second routing line 20.

[0061] Please continue to combine Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 as well as Figure 10 In the display panel provided by an embodiment of the present invention, the signal lines in the display area 101 include a plurality of scan lines 41 and a plurality of data lines 42 arranged in the display area 101, and the plurality of first wirings 10 are correspondingly connected to the plurality of scan lines 41, and the plurality of second wirings 20 are correspondingly connected to the plurality of data lines 42.

[0062] In one embodiment, multiple data lines 42 extend along the second direction N and are arranged along the third direction M, and the second direction N intersects the third direction M; the multiple scan lines 41 include multiple first scan lines 411 extending along the second direction N and arranged along the third direction M, and multiple second scan lines 412 extending along the third direction M and arranged along the second direction N.

[0063] In one embodiment, the second direction N may be perpendicular to the third direction M.

[0064] Among them, multiple first lines 10 are connected one-to-one with multiple first scan lines 411, and multiple second lines 20 are connected one-to-one with multiple data lines 42, so that the signal in the driving component 30 can be transmitted to the corresponding scan lines 41 and data lines 42, and the first lines 10 and the second lines 20 in the display panel provided by the embodiment of the present invention can share a driving component 30.

[0065] It should be noted that a second scan line 412 is correspondingly connected to at least one first scan line 411, and then the signal is transmitted from the driving component 30 to the first wiring 10, and is transmitted to the first scan line 411 via the first wiring 10, and then is transmitted from the first scan line 411 to the second scan line 412; and a plurality of pixel units arranged in an array along the second direction N and the third direction M are provided in the display area 101 of the display panel, and the plurality of pixel units are arranged in multiple rows and columns, each data line 42 is connected to a column of pixel units, and each second scan line 412 is connected to a row of pixel units to realize signal output to each pixel unit.

[0066] In one embodiment, the first routing line 10 can be set in the same layer as the first scanning line 411, that is, formed in the same photomask, and the second routing line 20 can be set in the same layer as the data line 42, that is, formed in the same photomask, so that the first routing layer also includes the first scanning line 411, and the second routing layer also includes the data line 42.

[0067] In other embodiments of the present invention, the first routing line 10 can be prepared in the same layer as other conductive film layers in the display area 101 of the display panel except the first scan line 411, and the second routing line 20 can be prepared in the same layer as other conductive film layers in the display area 101 of the display panel except the data line 42, and the first routing line 10 and the first scan line 411 can be connected through via-hole switching, and the second routing line 20 and the data line 42 can also be connected through via-hole switching.

[0068] In an embodiment of the present invention, since the data line 42 needs to be distributed corresponding to each column of pixel units, the second routing line 20 also needs to extend to the edge of the display area 101 to transmit signals to the data line 42 at the edge, and the first scan line 411 outputs signals to the pixel units through the second scan line 412. Therefore, the first routing line 10 does not need to extend to the edge of the display area 101, and the extension path of the multiple second routing lines 20 along the third direction M is greater than the extension path of the multiple first routing lines 10 along the third direction M.

[0069] Furthermore, the embodiment of the present invention sets an embodiment and a comparative example to verify the effects of the first routing 10 and the second routing 20 provided by the embodiment of the present invention, wherein the routing in the fan-out routing area in the comparative example is as follows: Figures 1 to 4 The arrangement is shown in FIG. 1 . In the embodiment, the wiring in the fan-out wiring area 102 is as follows Figures 5 to 10 The arrangement is performed, and other structures and materials of the display panels in the embodiment and the comparative example are the same. The simulation is performed using HuaDa JiuTian RCExplorer to obtain the data shown in Table 1 below.

[0070] Table 1 Parasitic capacitance data table

[0071]

[0072] It should be noted that the parasitic capacitance values ​​reported in Table 1 represent the parasitic capacitance between a source fanout trace 2 and a gate fanout trace 1 in the comparative example, as well as the parasitic capacitance between a second trace 20 and a first trace 10 in the embodiment. Furthermore, the data in Table 1 demonstrates that the parasitic capacitance of the display panel provided by the embodiment of the present invention can be significantly reduced, thereby effectively reducing signal delay and improving the display quality of the display panel.

[0073] To sum up, the embodiment of the present invention sets the first line segment 11 extending obliquely in the first routing line 10 so as not to overlap with the second routing line 20. This can reduce the overlapping area between the first line segment 11 and the second routing line 20 in the horizontal direction compared to the related art, thereby reducing the overlapping area between the first routing line 10 and the second routing line 20, that is, reducing the facing area between the first routing line 10 and the second routing line 20, reducing the parasitic capacitance between the first routing line 10 and the second routing line 20, improving the signal transmission delay phenomenon, and improving the display effect of the display panel.

[0074] In addition, an embodiment of the present invention further provides a display device, which includes the display panel described in the above embodiment.

[0075] In one embodiment, the display device may include an electronic paper reader.

[0076] It is understandable that since the display device provided in the embodiment of the present invention has the same display panel as that in the above embodiment, the display device has the same beneficial effects as the display panel in the above embodiment, which will not be described in detail here.

[0077] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0078] The above is a detailed introduction to a display panel and a display device provided by the embodiments of the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present invention. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A display panel, characterized in that: The display panel includes a display area and a fan-out wiring area located on one side of the display area; wherein the display panel further includes: a first routing layer including a plurality of first routing lines arranged in the fan-out routing area and spaced apart from each other, the first routing lines including a first line segment extending along a first direction and a second line segment extending along a second direction, the second line segment being connected between the first line segment and a signal line located in the display area, the second direction being a direction from the fan-out routing area to the display area, and the first direction intersecting the second direction; a second routing layer, arranged on one side of the first routing layer and insulated from the first routing layer, the second routing layer comprising a plurality of second routing lines arranged in the fan-out routing area and spaced apart; The first line segment and the second routing line do not overlap in the thickness direction of the display panel, and the second line segment and the second routing line at least partially overlap in the thickness direction of the display panel.

2. The display panel according to claim 1, wherein: The display panel further includes a driving component, the first wiring is connected between the driving component and the signal line, and the second wiring is connected between the driving component and the signal line; The first line further includes a third line segment connected between the driving component and the first line segment. The extension direction of the third line segment is different from the extension direction of the first line segment, and the third line segment does not overlap with the second line along the thickness direction of the display panel.

3. The display panel according to claim 2, wherein: The second trace includes a fourth line segment connected to the driving component, a sixth line segment connected to the signal line, and a fifth line segment connected between the fourth line segment and the sixth line segment; The first line segment is parallel to the fifth line segment, the third line segment is parallel to the fourth line segment, and the second line segment is partially overlapped with the fifth line segment along the thickness direction of the display panel.

4. The display panel according to claim 3, wherein: The third line segment and the fourth line segment extend along the second direction.

5. The display panel according to claim 3, wherein: At least one fourth line segment is located between two adjacent third line segments, and at least one fifth line segment is located between two adjacent first line segments.

6. The display panel according to claim 3, wherein: The connection points of the first line segment and the third line segment in the plurality of first lines, and the connection points of the fourth line segment and the fifth line segment in the plurality of second lines are all located on the same straight line.

7. The display panel according to claim 3, wherein: Multiple first routing lines are arranged at intervals between the display area and the driving component, and the multiple first routing lines include an outermost edge first routing line, a length of the first line segment in the first routing line close to the edge first routing line is greater than a length of the first line segment in the first routing line away from the edge first routing line, a length of the second line segment in the first routing line close to the edge first routing line is greater than a length of the second line segment in the first routing line away from the edge first routing line, and a length of the third line segment in the first routing line close to the edge first routing line is less than a length of the third line segment in the first routing line away from the edge first routing line.

8. The display panel according to claim 3, wherein: The sixth line segment includes a first connection portion connected to the fifth line segment, a second connection portion connected to the signal line, and a third connection portion connected between the first connection portion and the second connection portion, wherein the third connection portion includes an arch-shaped trace; The first connection portion and the second connection portion extend along the second direction, and the second line segment is located between two adjacent third connection portions.

9. The display panel according to claim 3, wherein: In the plurality of first routing lines, the spacing between adjacent first line segments is equal, the spacing between adjacent second line segments is equal, and the spacing between adjacent third line segments is equal.

10. The display panel according to any one of claims 1 to 9, characterized in that: The signal lines include a plurality of data lines and a plurality of scan lines arranged in the display area, and a plurality of the first wirings are correspondingly connected to a plurality of the scan lines, and a plurality of the second wirings are correspondingly connected to a plurality of the data lines.

11. The display panel according to claim 10, wherein: The plurality of scan lines include a plurality of first scan lines extending along the second direction and arranged along a third direction, and a plurality of second scan lines extending along the third direction and arranged along the second direction. The third direction intersects with the second direction, and the plurality of first routing lines are correspondingly connected to the plurality of first scan lines.

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

Citation Information

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