Display panel

By setting up static release traces in the non-display area of ​​the display panel, the problem that GOA traces are prone to static damage is solved, and the electrostatic protection of the display panel is achieved, avoiding the degradation of display performance.

CN120111863APending Publication Date: 2025-06-06WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202510134202.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-06
Publication Date
2025-06-06

AI Technical Summary

Technical Problem

The non-display area GOA traces of conventional display panels are easily damaged by electrostatic damage, resulting in reduced display performance.

Method used

A display panel is designed, by setting an electrostatic release trace in a non-display area, which partially overlaps the connection trace and is located below the connection trace on the membrane layer. The width of the electrostatic release trace is greater than the width of the connection trace to form a barrier electric field and lead static electricity away.

Benefits of technology

Effectively prevent static electricity from damaging the connection wiring, avoiding the display performance of the display panel, and at the same time reduce the parasitic capacitance between the electrostatic release trace and the connection trace, and improve the anti-static ability of the display panel.

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Abstract

According to the display panel, one end of a connecting wire is electrically connected with a shifting register, the other end of the connecting wire is electrically connected with a connecting terminal, and an electrostatic discharge wire is electrically connected with a constant-voltage signal wire; the film layer where the electrostatic discharge wires are located is located below the film layer where the connecting wires are located. In a top view of the display panel, at least part of the electrostatic discharge wire is overlapped with part of the connecting wire; on one hand, the electrostatic discharge wires can form a barrier electric field on the back side of the display panel to prevent static electricity from entering from the back side of the display panel, and on the other hand, the electrostatic discharge wires can guide away the static electricity introduced from the back side of the display panel, so that the static electricity is prevented from exploding and damaging the connecting wires, and the display performance of the display panel is prevented from being reduced.
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Description

Technical Field

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

[0002] The components of conventional display panels are easily damaged by static electricity due to factors such as design and manufacturing methods, especially the GOA wiring is easily damaged. Therefore, it is particularly important to prevent the GOA wiring from being damaged by static electricity to achieve static electricity protection for the display panel. Summary of the invention

[0003] The embodiments of the present application provide a display panel to improve the problem that the GOA wiring in the non-display area of ​​the display panel is easily damaged by static electricity.

[0004] An embodiment of the present application provides a display panel, comprising a display area and a non-display area arranged around the display area, wherein the non-display area of ​​the display panel is provided with a multi-stage shift register, a connecting terminal, a connecting wire, an electrostatic release wire and a constant voltage signal line, one end of the connecting wire is electrically connected to the shift register, the other end of the connecting wire is electrically connected to the connecting terminal, the electrostatic release wire is electrically connected to the constant voltage signal line, and the film layer where the electrostatic release wire is located is located below the film layer where the connecting wire is located; wherein, in a top view of the display panel, at least a portion of the electrostatic release wire overlaps with a portion of the connecting wire.

[0005] Furthermore, the width of the electrostatic release line is greater than the width of the connecting line, and in a top view of the display panel, at least a portion of an edge of at least one long side of the electrostatic release line exceeds an edge of the long side of the connecting line.

[0006] Furthermore, the distance from the electrostatic discharge wiring to the outer edge of the non-display area is shorter than the distance from the connection wiring to the outer edge of the non-display area.

[0007] Furthermore, the width of the electrostatic release line is smaller than the width of the connecting line, and in the top view of the display panel, the edge of the long side of the connecting line exceeds the edge of the long side of the electrostatic release line.

[0008] Furthermore, the electrostatic release line includes a plurality of first line segments and a plurality of second line segments, two adjacent first line segments are arranged at intervals, two adjacent first line segments are connected by the second line segments, and the first line segments extend toward the length direction of the connecting line.

[0009] Furthermore, the connecting line includes a plurality of sub-lines, the plurality of sub-lines are arranged at intervals, and the width of the first line segment is smaller than the width of the sub-lines.

[0010] Furthermore, in the top view of the display panel, part of the first line segments and part of the sub-lines do not overlap.

[0011] Furthermore, the arrangement density of the plurality of first line segments is greater than the arrangement density of the plurality of sub-lines.

[0012] Furthermore, in the thickness direction of the display panel, the thickness of the first line segment is smaller than the thickness of the sub-line.

[0013] Further, the constant voltage signal line includes a first power signal line and a second power signal line, the first power signal line is electrically connected to the shift register, the second power signal line is electrically connected to the shift register, and the voltage value of the voltage signal input to the first power signal line is greater than the voltage value of the voltage signal input to the second power signal line;

[0014] Among them, one end of the electrostatic release wiring is electrically connected to the first power signal line through a via hole; or one end of the electrostatic release wiring is electrically connected to the second power signal line through a via hole.

[0015] Beneficial effects of this application:

[0016] The present application provides a display panel, by setting one end of the connecting wire to be electrically connected to the shift register, the other end of the connecting wire to be electrically connected to the connecting terminal, the electrostatic release wire to be electrically connected to the constant voltage signal line, and the film layer where the electrostatic release wire is located is located below the film layer where the connecting wire is located; in the top view of the display panel, at least part of the electrostatic release wire overlaps with part of the connecting wire; on the one hand, the electrostatic release wire can form a blocking electric field on the back side of the display panel to block static electricity from entering from the back side of the display panel, and on the other hand, the electrostatic release wire can conduct away static electricity introduced from the back side of the display panel, thereby preventing static electricity from damaging the connecting wire and avoiding degradation of the display performance of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a top view of the display panel of the present application;

[0018] Figure 2 yes Figure 1 A schematic diagram of the C position of the display panel when no electrostatic discharge wiring is provided;

[0019] Figure 3 yes Figure 1 The schematic diagram of the display panel shown is a C position when an electrostatic discharge wiring is set;

[0020] Figure 4 yes Figure 3A cross-sectional view of a display panel at position D shown;

[0021] Figure 5 It is a schematic diagram of the electrostatic discharge wiring of the display panel of the present application.

[0022] 10-display panel, 100-shift register; 200-connection terminal; 300-connection line, 310-sub-line; 400-electrostatic release line, 410-first line segment, 420-second line segment; 500-constant voltage signal line, 510-first power signal line, 520-second power signal line; 600-via.

[0023] 11 - substrate; 12 - first metal wiring layer; 13 - second metal wiring layer; 14 - third metal wiring layer; 15 - fourth metal wiring layer. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. The technical solutions described below are only used to explain and illustrate the ideas of the present application and should not be regarded as limiting the scope of protection of the present application.

[0025] In addition, the terms "first", "second" and similar words do not indicate any order, quantity or importance, but are only used to distinguish different technical features. The term "plurality" and similar words mean two or more, unless otherwise clearly defined.

[0026] The first embodiment of the present application provides a first display panel 10, referring to Figure 1-Figure 3 The display panel 10 includes a display area AA and a non-display area BB arranged around the display area AA. The non-display area BB of the display panel 10 is provided with a multi-stage shift register 100, a connection terminal 200, a connection line 300, an electrostatic release line 400 and a constant voltage signal line 500. One end of the connection line 300 is electrically connected to the shift register 100, and the other end of the connection line 300 is electrically connected to the connection terminal 200. The electrostatic release line 400 is electrically connected to the constant voltage signal line 500. , the film layer where the electrostatic release wiring 400 is located is located below the film layer where the connecting wiring 300 is located; wherein, in the top view of the display panel 10, at least part of the electrostatic release wiring 400 overlaps with part of the connecting wiring 300; specifically, the width of the electrostatic release wiring 400 is greater than the width of the connecting wiring 300, and in the top view of the display panel 10, at least part of the edge of at least one long side of the electrostatic release wiring 400 exceeds the edge of the long side of the connecting wiring 300.

[0027] In the conventional solution, the shift register 100 of the non-display area BB of the display panel 10 is electrically connected to the connecting terminal 200 through the connecting wire 300. When connecting the shift register 100 to the connecting terminal 200, the connecting wire 300 needs to cross the constant voltage signal line 500. The film layer where the constant voltage signal line 500 is located is located above the film layer where the connecting wire 300 is located. When static electricity occurs on the back of the display panel 10, the connecting wire 300 is easily damaged, resulting in a decrease in the display performance of the display panel 10. Therefore, the present application provides a display panel 10, by setting one end of the connecting wire 300 to be electrically connected to the shift register 100, the other end of the connecting wire 300 to be electrically connected to the connecting terminal 200, the electrostatic release wire 400 to be electrically connected to the constant voltage signal line 500, and the film layer where the electrostatic release wire 400 is located is located below the film layer where the connecting wire 300 is located; in the top view of the display panel 10, at least part of the electrostatic release wire 400 overlaps with part of the connecting wire 300; specifically, the electrostatic release wire The width of 400 is greater than the width of the connecting wiring 300. In the top view of the display panel 10, at least a portion of the edge of at least one long side of the electrostatic release wiring 400 exceeds the edge of the long side of the connecting wiring 300. On the one hand, the electrostatic release wiring 400 can form a blocking electric field on the back side of the display panel 10 to block static electricity from entering from the back side of the display panel 10. On the other hand, the electrostatic release wiring 400 can conduct away static electricity introduced from the back side of the display panel 10, thereby preventing static electricity from damaging the connecting wiring 300 and avoiding degradation of the display performance of the display panel 10.

[0028] In this embodiment, reference Figure 1 The display panel 10 includes a non-display area BB, and the non-display area BB includes a peripheral area BB1 and a terminal area BB2; wherein the shift register 100 is located in the peripheral area BB1, and the connecting terminal 200 is located in the terminal area BB2.

[0029] In this embodiment, a portion of the edge of the long side of the electrostatic discharge wiring 400 exceeds the edge of the long side of the connection wiring 300 .

[0030] In this embodiment, the edge of the long side of the electrostatic discharge wiring 400 exceeds the edge of the long side of the connection wiring 300 .

[0031] In this embodiment, the distance from the electrostatic discharge line 400 to the outer edge of the non-display area BB is smaller than the distance from the connecting line 300 to the outer edge of the non-display area BB. By setting the distance from the electrostatic discharge line 400 to the outer edge of the non-display area BB to be smaller than the distance from the connecting line 300 to the outer edge of the non-display area BB, that is, the electrostatic discharge line 400 is closer to the edge of the non-display area BB, so that the electrostatic discharge line 400 can block the static electricity at the edge of the display panel 10 from entering the connecting line 300, thereby further preventing static electricity from damaging the connecting line 300 and avoiding the display performance of the display panel 10 from being reduced.

[0032] In this embodiment, reference Figure 1 , Figure 3 , Figure 5 , the electrostatic discharge line 400 includes a plurality of first line segments 410 and a plurality of second line segments 420, two adjacent first line segments 410 are arranged at intervals, two adjacent first line segments 410 are connected by the second line segment 420, and the first line segment 410 extends toward the length direction of the connecting line 300. By setting the electrostatic discharge line 400 to include a plurality of first line segments 410 and a plurality of second line segments 420, two adjacent first line segments 410 are arranged at intervals, two adjacent first line segments 410 are connected by the second line segment 420, and the first line segment 410 extends toward the length direction of the connecting line 300, compared with the solution in which the electrostatic discharge line 400 is set as a whole line, that is, no spacing is set between the first line segments 410, it is possible to avoid the situation in which the entire electrostatic discharge line 400 attracts static electricity and causes the antistatic ability of the display panel 10 to decrease, and at the same time, the distribution of the electric field of the electrostatic discharge line 400 can be more uniform, thereby improving the antistatic ability of the display panel 10.

[0033] In this embodiment, reference Figure 3-Figure 5 , the connecting line 300 includes a plurality of sub-lines 310, the plurality of sub-lines 310 are arranged at intervals, and the width a of the first line segment 410 is smaller than the width b of the sub-line 310. By setting the connecting line 300 to include a plurality of sub-lines 310, the plurality of sub-lines 310 are arranged at intervals, and the width a of the first line segment 410 is smaller than the width b of the sub-line 310, the area directly facing the connecting line 300 and the sub-line 310 can be reduced, thereby reducing the parasitic capacitance between the connecting line 300 and the electrostatic release line 400.

[0034] In this embodiment, reference Figure 4, in the top view of the display panel 10, part of the first line segment 410 does not overlap with part of the sub-line 310. By setting part of the first line segment 410 and part of the sub-line 310 not to overlap, the area directly facing the connecting line 300 and the sub-line 310 is reduced, thereby reducing the parasitic capacitance between the connecting line 300 and the electrostatic release line 400, and improving the stability of the signal of the connecting line 300.

[0035] In this embodiment, a portion of the first line segment 410 overlaps a portion of the sub-line 310 .

[0036] In this embodiment, the arrangement density of the plurality of first line segments 410 is greater than the arrangement density of the plurality of sub-lines 310 .

[0037] In this embodiment, reference Figure 4 , in the thickness direction M of the display panel 10, the thickness c of the first line segment 410 is less than the thickness d of the sub-line 310. By setting the thickness c of the first line segment 410 to be less than the thickness c of the sub-line 310, a larger spacing is provided between the film layer where the electrostatic discharge wiring 400 is located and the film layer where the connecting wiring 300 is located, thereby reducing the parasitic capacitance between the connecting wiring 300 and the electrostatic discharge wiring 400, and improving the stability of the signal of the connecting wiring 300.

[0038] In this embodiment, reference Figure 3 The constant voltage signal line 500 includes a first power signal line 510 and a second power signal line 520, the first power signal line 510 is electrically connected to the shift register 100, the second power signal line 520 is electrically connected to the shift register 100, the voltage value of the voltage signal input to the first power signal line 510 is greater than the voltage value of the voltage signal input to the second power signal line 520; wherein one end of the electrostatic release wiring 400 is electrically connected to the first power signal line 510 through a via 600.

[0039] In this embodiment, the constant voltage signal line 500 includes a first power signal line 510 and a second power signal line 520, the first power signal line 510 is electrically connected to the shift register 100, the second power signal line 520 is electrically connected to the shift register 100, and the voltage value of the voltage signal input to the first power signal line 510 is greater than the voltage value of the voltage signal input to the second power signal line 520; wherein one end of the electrostatic release wiring 400 is electrically connected to the second power signal line 520 through a via 600. Since the voltage value of the voltage signal input by the first power signal line 510 is greater than the voltage value of the voltage signal input by the second power signal line 520, and the distance from the first power signal line 510 to the display area AA is less than the distance from the second power signal line 520 to the display area AA, that is, the first power signal line 510 is closer to the display area AA than the second power signal line 520, that is, the closer the non-display area BB is to the display area AA, the denser the wiring, and the higher the difficulty of making the via 600 in the area where the first power signal line 510 is located. Therefore, setting one end of the electrostatic release trace 400 to be electrically connected to the second power signal line 520 through the via 600 can reduce the difficulty of preparing the via 600.

[0040] In this embodiment, the first power signal line 510 is a VDD (Voltage Drain-Drain, positive power) signal line, and the second power signal line 520 is a VSS (Voltage Source-Source, ground) signal line.

[0041] In this embodiment, reference Figure 4The display panel 10 also includes a substrate 11, a first metal wiring layer 12, a second metal wiring layer 13, a third metal wiring layer 14 and a fourth metal wiring layer 15, wherein the first metal wiring layer 12 is arranged on the substrate 11, the second metal wiring layer 13 is arranged on a side of the first metal wiring layer 12 away from the substrate 11, the third metal wiring layer 14 is arranged on a side of the second metal wiring layer 13 away from the substrate 11, and the fourth metal wiring layer 15 is arranged on a side of the third metal wiring layer 14 away from the substrate 11; wherein the electrostatic release wiring 400 is located in the first metal wiring layer 12, part of the sub-wires 310 of the connecting wiring 300 is located in the second metal wiring layer 13, and part of the sub-wires 310 of the connecting wiring 300 is located in the third metal wiring layer 14, the first power signal line 510 is located in the fourth metal wiring layer 15, and the second power signal line 520 is located in the fourth metal wiring layer 15. By arranging some sub-lines 310 of the connecting wiring 300 in the second metal wiring layer 13 and some sub-lines 310 of the connecting wiring 300 in the third metal wiring layer 14, a double-layer wiring method is adopted, which can save partial wiring space in the non-display area BB, thereby being more conducive to achieving a narrow frame of the display panel 10.

[0042] In this embodiment, the sub-line 310 located in the second metal wiring layer 13 overlaps with the sub-line 310 located in the third metal wiring layer 14 , and a portion of the sub-line 310 located in the second metal wiring layer 13 overlaps with the first line segment 410 .

[0043] The second embodiment of the present application provides a second display panel 10, including a display area AA and a non-display area BB arranged around the display area AA, wherein the non-display area BB of the display panel 10 is provided with a multi-stage shift register 100, a connecting terminal 200, a connecting wire 300, an electrostatic release wire 400 and a constant voltage signal line 500, one end of the connecting wire 300 is electrically connected to the shift register 100, the other end of the connecting wire 300 is electrically connected to the connecting terminal 200, the electrostatic release wire 400 is electrically connected to the connecting terminal 200, and the electrostatic release wire 400 is electrically connected to the connecting terminal 200. The constant voltage signal line 500 is electrically connected, and the film layer where the electrostatic release wiring 400 is located is located below the film layer where the connecting wiring 300 is located; wherein, in the top view of the display panel 10, at least part of the electrostatic release wiring 400 overlaps with part of the connecting wiring 300; specifically, the width of the electrostatic release wiring 400 is smaller than the width of the connecting wiring 300, and in the top view of the display panel 10, the edge of the long side of the connecting wiring 300 exceeds the edge of the long side of the electrostatic release wiring 400.

[0044] In the conventional solution, the shift register 100 of the non-display area BB of the display panel 10 is electrically connected to the connecting terminal 200 through the connecting wire 300. When connecting the shift register 100 to the connecting terminal 200, the connecting wire 300 needs to cross the constant voltage signal line 500. The film layer where the constant voltage signal line 500 is located is located above the film layer where the connecting wire 300 is located. When static electricity occurs on the back of the display panel 10, the connecting wire 300 is easily damaged, resulting in a decrease in the display performance of the display panel 10. Therefore, the present application provides a display panel 10, by setting one end of the connecting wire 300 to be electrically connected to the shift register 100, the other end of the connecting wire 300 to be electrically connected to the connecting terminal 200, the electrostatic release wire 400 to be electrically connected to the constant voltage signal line 500, and the film layer where the electrostatic release wire 400 is located is located below the film layer where the connecting wire 300 is located; in the top view of the display panel 10, at least part of the electrostatic release wire 400 overlaps with part of the connecting wire 300; specifically, the width of the electrostatic release wire 400 is smaller than the width of the connecting wire 300, In the top view of the display panel 10, the edge of the long side of the connecting wiring 300 exceeds the edge of the long side of the electrostatic release wiring 400; on the one hand, the electrostatic release wiring 400 can form a blocking electric field on the back side of the display panel 10 to block static electricity from entering from the back side of the display panel 10; on the other hand, the electrostatic release wiring 400 can conduct away the static electricity introduced from the back side of the display panel 10, thereby preventing static electricity from damaging the connecting wiring 300 and avoiding degradation of the display performance of the display panel 10; at the same time, it can also reduce the parasitic capacitance between the electrostatic release wiring 400 and the connecting wiring 300, thereby improving the working stability of the shift register 100.

[0045] In this embodiment, reference Figure 1 The display panel 10 includes a non-display area BB, and the non-display area BB includes a peripheral area BB1 and a terminal area BB2; wherein the shift register 100 is located in the peripheral area BB1, and the connecting terminal 200 is located in the terminal area BB2.

[0046] In this embodiment, a portion of the edge of the long side of the electrostatic discharge wiring 400 exceeds the edge of the long side of the connection wiring 300 .

[0047] In this embodiment, the edge of the long side of the electrostatic discharge wiring 400 exceeds the edge of the long side of the connection wiring 300 .

[0048] In this embodiment, reference Figure 5, the electrostatic discharge line 400 includes a plurality of first line segments 410 and a plurality of second line segments 420, two adjacent first line segments 410 are arranged at intervals, two adjacent first line segments 410 are connected by the second line segment 420, and the first line segment 410 extends toward the length direction of the connecting line 300. By setting the electrostatic discharge line 400 to include a plurality of first line segments 410 and a plurality of second line segments 420, two adjacent first line segments 410 are arranged at intervals, two adjacent first line segments 410 are connected by the second line segment 420, and the first line segment 410 extends toward the length direction of the connecting line 300, compared with the solution in which the electrostatic discharge line 400 is set as a whole line, that is, no spacing is set between the first line segments 410, it is possible to avoid the situation in which the entire electrostatic discharge line 400 attracts static electricity and causes the antistatic ability of the display panel 10 to decrease, and at the same time, the distribution of the electric field of the electrostatic discharge line 400 can be more uniform, thereby improving the antistatic ability of the display panel 10.

[0049] In this embodiment, reference Figure 2 , Figure 4 , Figure 5 , the connecting line 300 includes a plurality of sub-lines 310, the plurality of sub-lines 310 are arranged at intervals, and the width a of the first line segment 410 is smaller than the width b of the sub-line 310. By setting the connecting line 300 to include a plurality of sub-lines 310, the plurality of sub-lines 310 are arranged at intervals, and the width a of the first line segment 410 is smaller than the width b of the sub-line 310, the area directly facing the connecting line 300 and the sub-line 310 can be reduced, thereby reducing the parasitic capacitance between the connecting line 300 and the electrostatic release line 400.

[0050] In this embodiment, reference Figure 4 , in the top view of the display panel 10, part of the first line segment 410 does not overlap with part of the sub-line 310. By setting part of the first line segment 410 and part of the sub-line 310 not to overlap, the area directly facing the connecting line 300 and the sub-line 310 is reduced, thereby reducing the parasitic capacitance between the connecting line 300 and the electrostatic release line 400, and improving the stability of the signal of the connecting line 300.

[0051] In this embodiment, a portion of the first line segment 410 overlaps a portion of the sub-line 310 .

[0052] In this embodiment, reference Figure 4 , the arrangement density of the plurality of first line segments 410 is greater than the arrangement density of the plurality of sub-lines 310 .

[0053] In this embodiment, reference Figure 4, in the thickness direction M of the display panel 10, the thickness c of the first line segment 410 is less than the thickness d of the sub-line 310. By setting the thickness c of the first line segment 410 to be less than the thickness d of the sub-line 310, a larger spacing is provided between the film layer where the electrostatic discharge wiring 400 is located and the film layer where the connecting wiring 300 is located, thereby reducing the parasitic capacitance between the connecting wiring 300 and the electrostatic discharge wiring 400, and improving the stability of the signal of the connecting wiring 300.

[0054] In this embodiment, the constant voltage signal line 500 includes a first power signal line 510 and a second power signal line 520, the first power signal line 510 is electrically connected to the shift register 100, the second power signal line 520 is electrically connected to the shift register 100, and the voltage value of the voltage signal input to the first power signal line 510 is greater than the voltage value of the voltage signal input to the second power signal line 520; wherein one end of the electrostatic release wiring 400 is electrically connected to the first power signal line 510 through a via 600.

[0055] In this embodiment, the constant voltage signal line 500 includes a first power signal line 510 and a second power signal line 520, the first power signal line 510 is electrically connected to the shift register 100, the second power signal line 520 is electrically connected to the shift register 100, and the voltage value of the voltage signal input to the first power signal line 510 is greater than the voltage value of the voltage signal input to the second power signal line 520; wherein one end of the electrostatic release wiring 400 is electrically connected to the second power signal line 520 through a via 600. Since the voltage value of the voltage signal input by the first power signal line 510 is greater than the voltage value of the voltage signal input by the second power signal line 520, and the distance from the first power signal line 510 to the display area AA is less than the distance from the second power signal line 520 to the display area AA, that is, the first power signal line 510 is closer to the display area AA than the second power signal line 520, that is, the closer the non-display area BB is to the display area AA, the denser the wiring, and the higher the difficulty of making the via 600 in the area where the first power signal line 510 is located. Therefore, setting one end of the electrostatic release trace 400 to be electrically connected to the second power signal line 520 through the via 600 can reduce the difficulty of preparing the via 600.

[0056] In this embodiment, reference Figure 4The display panel 10 also includes a substrate 11, a first metal wiring layer 12, a second metal wiring layer 13, a third metal wiring layer 14 and a fourth metal wiring layer 15, wherein the first metal wiring layer 12 is arranged on the substrate 11, the second metal wiring layer 13 is arranged on a side of the first metal wiring layer 12 away from the substrate 11, the third metal wiring layer 14 is arranged on a side of the second metal wiring layer 13 away from the substrate 11, and the fourth metal wiring layer 15 is arranged on a side of the third metal wiring layer 14 away from the substrate 11; wherein the electrostatic release wiring 400 is located in the first metal wiring layer 12, part of the sub-wires 310 of the connecting wiring 300 is located in the second metal wiring layer 13, and part of the sub-wires 310 of the connecting wiring 300 is located in the third metal wiring layer 14, the first power signal line 510 is located in the fourth metal wiring layer 15, and the second power signal line 520 is located in the fourth metal wiring layer 15. By arranging some sub-lines 310 of the connecting wiring 300 in the second metal wiring layer 13 and some sub-lines 310 of the connecting wiring 300 in the third metal wiring layer 14, a double-layer wiring method is adopted, which can save partial wiring space in the non-display area BB, thereby being more conducive to achieving a narrow frame of the display panel 10.

[0057] In this embodiment, the sub-line 310 located in the second metal wiring layer 13 overlaps with the sub-line 310 located in the third metal wiring layer 14 , and a portion of the sub-line 310 located in the second metal wiring layer 13 overlaps with the first line segment 410 .

[0058] The above is a detailed description of the specific implementation of the present application. The above implementation disclosed in the present application is only the preferred implementation of the present application. For ordinary technicians in this field, many modifications and improvements can be made without departing from the concept of the present application. These modifications and improvements all fall within the scope of protection defined by the claims of the present application.

Claims

1. A display panel, characterized in that: It includes a display area and a non-display area arranged around the display area, wherein the non-display area of ​​the display panel is provided with a multi-stage shift register, a connecting terminal, a connecting wire, an electrostatic release wire and a constant voltage signal line, one end of the connecting wire is electrically connected to the shift register, the other end of the connecting wire is electrically connected to the connecting terminal, the electrostatic release wire is electrically connected to the constant voltage signal line, and the film layer where the electrostatic release wire is located is located below the film layer where the connecting wire is located; wherein, in a top view of the display panel, at least part of the electrostatic release wire overlaps part of the connecting wire.

2. The display panel according to claim 1, characterized in that: The width of the electrostatic discharge line is greater than the width of the connecting line. In a top view of the display panel, at least a portion of an edge of at least one long side of the electrostatic discharge line exceeds an edge of the long side of the connecting line.

3. The display panel according to claim 2, characterized in that: The distance from the electrostatic discharge wiring to the outer edge of the non-display area is shorter than the distance from the connection wiring to the outer edge of the non-display area.

4. The display panel according to claim 1, characterized in that: The width of the electrostatic discharge line is smaller than the width of the connecting line, and in a top view of the display panel, an edge of a long side of the connecting line exceeds an edge of a long side of the electrostatic discharge line.

5. The display panel according to claim 1, characterized in that: The electrostatic release line includes a plurality of first line segments and a plurality of second line segments, two adjacent first line segments are arranged at intervals, two adjacent first line segments are connected by the second line segments, and the first line segments extend toward the length direction of the connection line.

6. The display panel according to claim 5, characterized in that: The connecting line includes a plurality of sub-lines, the plurality of sub-lines are arranged at intervals, and the width of the first line segment is smaller than the width of the sub-lines.

7. The display panel according to claim 6, characterized in that: In the top view of the display panel, part of the first line segments and part of the sub-lines do not overlap.

8. The display panel according to claim 6, characterized in that: The arrangement density of the plurality of first line segments is greater than the arrangement density of the plurality of sub-lines.

9. The display panel according to claim 6, characterized in that: In a thickness direction of the display panel, a thickness of the first line segment is smaller than a thickness of the sub-line.

10. The display panel according to claim 1, characterized in that: The constant voltage signal line includes a first power signal line and a second power signal line, the first power signal line is electrically connected to the shift register, the second power signal line is electrically connected to the shift register, and the voltage value input to the first power signal line is greater than the voltage value input to the second power signal line; Among them, one end of the electrostatic release wiring is electrically connected to the first power signal line through a via hole; or one end of the electrostatic release wiring is electrically connected to the second power signal line through a via hole.

Citation Information

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