Display panel

Abstract

The application discloses a display panel, which comprises a display area and a peripheral area arranged around the display area, and further comprises a gate drive circuit, a first drive signal line, a second drive signal line and an electrostatic discharge unit. The gate drive circuit is arranged in the peripheral area, and comprises a plurality of effective shift registers and a redundant shift register arranged in sequence, and the redundant shift register is arranged in a spaced manner with the effective shift registers. The first drive signal line is electrically connected with the effective shift registers. The second drive signal line is electrically connected with the redundant shift register. The electrostatic discharge unit is electrically connected with the first drive signal line and the second drive signal line, and is used for discharging static electricity of the first drive signal line and the second drive signal line. At least a part of the electrostatic discharge unit is located between the effective shift registers and the redundant shift register.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a display panel. BACKGROUND

[0002] GOA (Gate-driver On Array) technology is a technology of directly manufacturing a gate driving circuit on a display panel to replace an external driving circuit. The area where the gate driving circuit of the display panel is located is prone to static electricity accumulation, which reduces the stability of the display panel. SUMMARY

[0003] Embodiments of the present application provide a display panel to improve the problem of reduced stability of the display panel due to static electricity accumulation.

[0004] In a first aspect, embodiments of the present application provide a display panel, comprising a display area and a peripheral area surrounding the display area, the display panel further comprising:

[0005] a gate driving circuit, the gate driving circuit being arranged in the peripheral area, the gate driving circuit comprising a plurality of effective shift registers and a redundant shift register arranged in sequence, the redundant shift register being arranged spaced apart from the effective shift registers;

[0006] a first driving signal line, the first driving signal line being arranged in the peripheral area, and the first driving signal line being electrically connected to the effective shift registers;

[0007] a second driving signal line, the second driving signal line being arranged in the peripheral area, and the second driving signal line being electrically connected to the redundant shift register;

[0008] an electrostatic discharge unit, the electrostatic discharge unit being arranged in the peripheral area, the electrostatic discharge unit being electrically connected to the first driving signal line and the second driving signal line, for discharging static electricity of the first driving signal line and the second driving signal line, at least a part of the electrostatic discharge unit being located between the effective shift registers and the redundant shift register.

[0009] Further, the electrostatic discharge unit comprises a first electrostatic discharge sub-unit, the first electrostatic discharge sub-unit being arranged in the peripheral area, the first electrostatic discharge sub-unit being located between the effective shift registers and the redundant shift register, and the first electrostatic discharge sub-unit being electrically connected to the first driving signal line.

[0010] Further, the static electricity release unit further comprises a second static electricity release sub-unit, the second static electricity release sub-unit is arranged in the peripheral area, and the second static electricity release sub-unit is located on a side of the redundant shift register away from the second static electricity release sub-unit, and the second static electricity release sub-unit is electrically connected with the second driving signal line.

[0011] Further, the static electricity release unit further comprises a second static electricity release sub-unit, the second static electricity release sub-unit is arranged in the peripheral area, and the second static electricity release sub-unit is located on a side of the redundant shift register away from the second static electricity release sub-unit, and the second static electricity release sub-unit is electrically connected with the second driving signal line.

[0012] Further, the second static electricity release sub-unit and the first static electricity release sub-unit are arranged in a length direction of the peripheral area.

[0013] Further, the display panel further comprises a plurality of clock signal lines and a signal connection line, the plurality of clock signal lines are arranged at intervals, and the plurality of clock signal lines are located between the first static electricity release sub-unit and the first driving signal line, one end of the signal connection line is electrically connected with the first static electricity release sub-unit, the other end of the signal connection line is electrically connected with the first driving signal line, and a film layer in which the signal connection line is located is different from a film layer in which the clock signal line is located.

[0014] Further, the display panel further comprises:

[0015] a substrate;

[0016] a first metal layer, the first metal layer is arranged on the substrate;

[0017] a second metal layer, the second metal layer is arranged on a side of the first metal layer away from the substrate;

[0018] a third metal layer, the third metal layer is arranged on a side of the second metal layer away from the substrate;

[0019] wherein the signal connection line is located in the first metal layer, and the clock signal line is located in the third metal layer.

[0020] Further, the signal connection line crosses the second driving signal line, and a film layer in which the second driving signal line is located is different from a film layer in which the signal connection line is located.

[0021] Further, the peripheral area comprises a first sub-peripheral area, a corner area, and a second sub-peripheral area, the corner area is located between the first sub-peripheral area and the second sub-peripheral area, wherein a plurality of levels of the effective shift register are located in the first sub-peripheral area, the redundant shift register is located in the second sub-peripheral area, and the first static electricity release sub-unit is located in the corner area.

[0022] Further, the length direction of the first electrostatic discharge sub-unit is the same as the length direction of the peripheral area, and the length direction of the second electrostatic discharge sub-unit is the same as the length direction of the peripheral area.

[0023] Advantages of the present application:

[0024] The present application provides a display panel, by setting the display panel comprising a gate drive circuit and an electrostatic discharge unit, the gate drive circuit comprises a plurality of levels of effective shift register and redundant shift register arranged in sequence, the redundant shift register is arranged with the effective shift register, and at least a part of the electrostatic discharge unit is arranged between the effective shift register and the redundant shift register; on the one hand, the length of the first drive signal line connected with the electrostatic discharge unit can be reduced, the risk of long metal signal line injury is reduced, so as to improve the problem of reducing the stability of the display panel caused by static accumulation, on the other hand, since at least a part of the electrostatic discharge unit is located between the effective shift register and the redundant shift register, the interval between the redundant shift register and the effective shift register can be increased, the length of the level transmission signal line between the redundant shift register and the effective shift register is increased, so as to increase the RC load of the redundant shift register, and reduce the risk of coupling of the level transmission signal line between the redundant shift register and the effective shift register by other signal lines. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the first display panel of the present application;

[0026] Figure 2 Figure 1 The first display panel shown in the enlarged view of position A;

[0027] Figure 3 It is a schematic diagram of the structure of the second display panel of the present application;

[0028] Figure 4 Figure 3 The second display panel shown in the enlarged view of position B;

[0029] Figure 5 Figure 4 The second display panel shown in the enlarged view of position C;

[0030] Figure 6 Figure 4 The second display panel shown in the enlarged view of position D;

[0031] Figure 7 It is Figure 6A cross-sectional view of the E position of the second display panel shown;

[0032] Figure 8 is a schematic diagram of the structure of a third display panel of the present application;

[0033] Figure 9 is a schematic diagram of the structure of a fourth display panel of the present application;

[0034] Figure 10 is a schematic diagram of a conventional display panel of the present application.

[0035] 100 - gate drive circuit, 110 - active shift register, 120 - redundant shift register; 200 - first drive signal line; 300 - second drive signal line; 400 - electrostatic discharge unit, 410 - first electrostatic discharge subunit, 420 - second electrostatic discharge subunit; 500 - clock signal line; 600 - signal connection line; 700 - third drive signal line; 800 - first power voltage signal line; 900 - second power voltage signal line.

[0036] 10 - substrate; 20 - buffer layer; 30 - first metal layer; 40 - first insulating layer; 50 - second metal layer; 60 - second insulating layer; 70 - third metal layer.

[0037] AA - display area, AA1 - first side edge, AA2 - R corner, AA3 - second side edge; BB - peripheral area, BB1 - first sub-peripheral area, BB2 - corner area, BB3 - second sub-peripheral area.

[0038] 01 - active shift register; 02 - redundant shift register; 03 - electrostatic discharge unit. DETAILED DESCRIPTION

[0039] 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 idea of the present application, and should not be regarded as limiting the protection scope of the present application.

[0040] In addition, the terms "first", "second", and similar words do not represent any order, quantity, or importance, but are only used to distinguish different technical features. The term "multiple" and similar words represent two or more, unless otherwise explicitly limited.

[0041] The first embodiment of the present application provides a first display panel, referring to Figure 1 and Figure 2The display panel includes a display area AA and a peripheral area BB surrounding the display area AA, and further includes a gate driving circuit 100, a first driving signal line 200, a second driving signal line 300, and an electrostatic discharge unit 400. The gate driving circuit is arranged in the peripheral area BB. The gate driving circuit 100 includes a plurality of effective shift registers 110 and a redundant shift register 120 arranged in sequence. The redundant shift register 120 is arranged apart from the effective shift register 110. The first driving signal line 200 is arranged in the peripheral area BB and is electrically connected to the effective shift register 110. The second driving signal line 300 is arranged in the peripheral area BB and is electrically connected to the redundant shift register 120. The electrostatic discharge unit 400 is arranged in the peripheral area BB and is electrically connected to the first driving signal line 200 and the second driving signal line 300, and is used to discharge static electricity of the first driving signal line 200 and the second driving signal line 300. At least a part of the electrostatic discharge unit 400 is located between the effective shift register 110 and the redundant shift register 120. The electrostatic discharge unit 400 includes a first electrostatic discharge sub-unit 410 arranged in the peripheral area BB and located between the effective shift register 110 and the redundant shift register 120, and electrically connected to the first driving signal line 200.

[0042] GOA (Gate Driver on Array, gate driving of a display panel) technology is a technology of directly manufacturing a gate driving circuit on an array substrate to replace an external driving circuit. The gate driving circuit of the display panel includes an effective shift register 01 and a redundant shift register 02. The effective shift register 01 and the redundant shift register 02 are arranged adjacent to each other. In order to improve the problem of abnormal operation of the display panel caused by static accumulation in the GOA area of the display panel corresponding to the gate driving circuit, a conventional scheme arranges an electrostatic discharge unit 03 on the side of the redundant shift register 02 away from the effective shift register 01. However, the display panel of the scheme still has high static accumulation, which reduces the stability of the display panel. Figure 10

[0043] ​Therefore, by arranging the display panel to include the gate driving circuit 100 and the static electricity release unit 400, the gate driving circuit 100 includes the multiple-stage effective shift register 110 arranged in sequence and the redundant shift register 120 located after the last stage of the effective shift register 110, and the redundant shift register 120 is arranged apart from the effective shift register 110, and the static electricity release unit 400 is arranged to include the first static electricity release subunit 410 arranged in the peripheral area BB, the first static electricity release subunit 410 is located between the effective shift register 110 and the redundant shift register 120, and the first static electricity release subunit 410 is electrically connected with the first driving signal line 200. On the one hand, the length of the first driving signal line 200 connected with the static electricity release unit 400 can be reduced, the risk of injury caused by long metal signal lines can be reduced, and the problem of reduced stability of the display panel caused by static electricity accumulation can be improved. On the other hand, since at least part of the static electricity release unit 400 is located between the effective shift register 110 and the redundant shift register 120, the interval between the redundant shift register 120 and the effective shift register 110 can be increased, the length of the stage transmission signal line between the redundant shift register 120 and the effective shift register 110 is increased, and the RC load of the redundant shift register 120 can be increased, and the risk of signal coupling between the stage transmission signal line between the redundant shift register 120 and the effective shift register 110 and other signal lines can be reduced.

[0044] In the embodiment, the redundant shift register is located after the last stage of the effective shift register 110.

[0045] In the embodiment, the display panel further includes a scan signal line, the effective shift register 110 is electrically connected with the scan line, and the redundant shift register 120 is not electrically connected with the scan line.

[0046] In the embodiment, the display panel further includes a third driving signal line 700, wherein the effective shift register 110 is electrically connected with the redundant shift register 120 through the third driving signal line 700.

[0047] In the embodiment, the signal of the first driving signal line 200 includes an EM_STV signal. The EM_STV signal is an initial start signal.

[0048] In the embodiment, the signal of the second driving signal line 300 includes an EM_STV signal. The EM_STV signal is an initial start signal.

[0049] In the embodiment, the signal of the third driving signal line 700 comprises a P[n] signal. The P[n] signal is a stage transfer signal.

[0050] In the embodiment, the display panel further comprises a first power voltage signal line 800 and a second power voltage signal line 900, which are electrically connected with the static electricity release unit.

[0051] In the embodiment, the first power voltage signal line is a VGH (High Voltage Gate Drive) signal, and the second power voltage signal line is a VGL (Low Voltage Gate Drive) signal. The VGH signal is a high voltage signal, which is a high voltage signal of the VGL signal.

[0052] In the embodiment, the peripheral area BB comprises a peripheral area BB first sub-peripheral area BB1, a corner area BB2, and a peripheral area BB second sub-peripheral area BB3, the corner area BB2 is located between the peripheral area BB first sub-peripheral area BB1 and the peripheral area BB second sub-peripheral area BB3, wherein the multi-stage effective shift register 110 is located in the peripheral area BB first sub-peripheral area BB1, the redundant shift register 120 is located in the peripheral area BB second sub-peripheral area BB3, and the first static electricity release sub-unit 410 is located in the corner area BB2. Since the redundant shift register 120 of the gate driving circuit 100 of the conventional scheme is arranged in the corner area BB2, and the volume of the effective shift register 110 and the redundant shift register 120 is larger than that of the static electricity release unit 400, the redundant shift register 120 will occupy a larger width of the corner area BB2, which results in that the corner area BB2 of the peripheral area BB of the conventional scheme occupies a larger space. Therefore, by arranging the multi-stage effective shift register 110 in the peripheral area BB first sub-peripheral area BB1, the redundant shift register 120 in the peripheral area BB second sub-peripheral area BB3, and the first static electricity release sub-unit 410 in the corner area BB2, the space occupied by the corner area BB2 of the peripheral area BB can be saved.

[0053] It should be noted that since the peripheral area BB second sub-peripheral area BB3 has fewer wirings, even if the redundant shift register 120 is placed in the peripheral area BB second sub-peripheral area BB3, it will not affect the wiring of the second sub-peripheral area BB3.

[0054] In the embodiment, the display area AA includes a first side AA1, a second side AA3, and an R angle AA2, the first side AA1 is connected with the second side AA3 through the R angle AA2; the first side AA1 corresponds to the first sub-peripheral area BB1 of the peripheral area BB, the second side AA3 corresponds to the second sub-peripheral area BB3 of the peripheral area BB, and the R angle AA2 corresponds to the corner area BB2.

[0055] In the embodiment, the display panel further includes a plurality of clock signal lines 500 and a signal connection line 600, the plurality of clock signal lines 500 are arranged at intervals, and the plurality of clock signal lines 500 are located between the first electrostatic discharge sub-unit 410 and the first driving signal line 200, one end of the signal connection line 600 is electrically connected with the first electrostatic discharge sub-unit 410, and the other end of the signal connection line 600 is electrically connected with the first driving signal line 200, wherein the signal connection line 600 crosses the plurality of clock signal lines 500, and the film layer where the signal connection line 600 is located is different from the film layer where the clock signal lines 500 are located. By arranging that one end of the signal connection line 600 is electrically connected with the first electrostatic discharge sub-unit 410, the other end of the signal connection line 600 is electrically connected with the first driving signal line 200, wherein the signal connection line 600 crosses the plurality of clock signal lines 500, and the film layer where the signal connection line 600 is located is different from the film layer where the clock signal lines 500 are located, the first electrostatic discharge sub-unit 410 can be electrically connected with the first driving signal line 200, and it is ensured that the static electricity of the first driving signal line 200 can be discharged through the first electrostatic discharge sub-unit 410.

[0056] In the embodiment, the signal connection line 600 is in the same layer as the first driving signal line 200.

[0057] It should be noted that the signal connection line 600 belongs to a part of the first driving signal line 200.

[0058] In the embodiment, it is referred to Figure 9The display panel further comprises a substrate 10, a first metal layer 30, a second metal layer 50, and a third metal layer 70; the first metal layer 30 is arranged on the substrate 10; the second metal layer 50 is arranged on a side of the first metal layer 30 away from the substrate 10; the third metal layer 70 is arranged on a side of the second metal layer 50 away from the substrate 10; wherein the signal connection line 600 is located in the first metal layer 30, and the clock signal line is located in the third metal layer 70. Since the third metal layer 70 is far away from the first metal layer 30, by arranging the signal connection line 600 in the first metal layer 30 and the clock signal line in the third metal layer 70, a large spacing is formed between the signal connection line 600 and the clock signal line, which can reduce the parasitic capacitance generated by the signal connection line 600 and the clock signal line 500, thereby reducing the interference of the signal connection line 600 on the signal of the clock signal line 500 and improving the stability of the timing signal of the display panel.

[0059] In the embodiment, the display panel further comprises a thin film transistor, which comprises a gate, a source and a drain; the gate is located in the first metal layer 30, and the source and the drain are located in the second metal layer 50.

[0060] In the embodiment, the display panel further comprises a first insulating layer 40 and a second insulating layer 60; the first insulating layer 40 is located between the first metal layer 30 and the second metal layer 50, and the second insulating layer 60 is located between the third metal layer 70 and the second metal layer 50.

[0061] In the embodiment, the display panel further comprises a buffer layer 20, which is located between the first metal layer 30 and the substrate 10.

[0062] In the embodiment, the width of the signal connection line 600 is smaller than the width of the clock signal line 500. By arranging the width of the signal connection line 600 to be smaller than the width of the clock signal line 500, the parasitic capacitance generated by the signal connection line 600 and the clock signal line 500 can be reduced, thereby reducing the interference of the signal connection line 600 on the signal of the clock signal line 500 and improving the stability of the timing signal of the display panel.

[0063] In the embodiment, the signal connection line 600 crosses the second drive signal line 300, and the film layer where the second drive signal line 300 is located is different from the film layer where the signal connection line 600 is located.

[0064] In the embodiment, the length direction of the first electrostatic discharge sub-unit 400 is the same as the length direction of the peripheral area BB. By setting the length direction of the first electrostatic discharge sub-unit 400 to be the same as the length direction of the peripheral area BB, the length direction of the first electrostatic discharge sub-unit 400 can be kept consistent with the length direction of the corner area BB2, and the width of the corner area of the peripheral area occupied by the first electrostatic discharge sub-unit 400 is avoided from increasing.

[0065] The second embodiment of the present application provides a second display panel, referring to Figures 3-6 , the second embodiment is similar to the first embodiment, and the difference between the second embodiment and the first embodiment is that the electrostatic discharge unit 400 further includes a second electrostatic discharge sub-unit 420, the second electrostatic discharge sub-unit 420 is arranged in the peripheral area BB, and the second electrostatic discharge sub-unit 420 is located on the side of the redundant shift register 120 away from the second electrostatic discharge sub-unit 400, and the second electrostatic discharge sub-unit 420 is electrically connected with the second drive signal line 300.

[0066] By setting the display panel to include a gate drive circuit and an electrostatic discharge unit 400, the gate drive circuit 100 includes a plurality of effective shift registers 110 arranged in sequence and a redundant shift register 120 located after the last level of the effective shift register 110, and the redundant shift register 120 is arranged apart from the effective shift register 110, and the electrostatic discharge unit 400 further includes a second electrostatic discharge sub-unit 420, the second electrostatic discharge sub-unit 420 is arranged in the peripheral area BB, and the second electrostatic discharge sub-unit 420 is located on the side of the redundant shift register 120 away from the second electrostatic discharge sub-unit 400, and the second electrostatic discharge sub-unit 420 is electrically connected with the second drive signal line 300, so that the first electrostatic discharge sub-unit 410 and the second electrostatic discharge sub-unit 420 of the electrostatic discharge unit 400 can be dispersedly arranged. Compared with the scheme of arranging the electrostatic discharge unit 400 only on the side of the redundant shift register 120 away from the effective shift register 110, the first electrostatic discharge sub-unit 410 and the second electrostatic discharge sub-unit 420 of the electrostatic discharge unit 400 can better discharge the static electricity in the GOA area of the display panel, thereby improving the stability of the display panel.

[0067] In the embodiment, the peripheral region BB includes a peripheral region BB first sub-peripheral region BB1, a corner region BB2, and a peripheral region BB second sub-peripheral region BB3, the corner region BB2 is located between the peripheral region BB first sub-peripheral region BB1 and the peripheral region BB second sub-peripheral region BB3, wherein the multi-stage effective shift register 110 is located in the peripheral region BB first sub-peripheral region BB1, the redundant shift register 120 is located in the peripheral region BB second sub-peripheral region BB3, the first electrostatic discharge sub-unit 410 is located in the corner region BB2, and the second electrostatic discharge sub-unit 400 is located in the peripheral region BB second sub-peripheral region BB3. Since the redundant shift register 120 of the gate drive circuit 100 of the conventional scheme is arranged in the corner region BB2, and the volume of the effective shift register 110 and the redundant shift register 120 is larger than that of the electrostatic discharge unit 400, which results in that the space occupied by the corner region BB2 of the peripheral region BB of the conventional scheme is large. Therefore, by arranging the multi-stage effective shift register 110 in the peripheral region BB first sub-peripheral region BB1, the redundant shift register 120 in the peripheral region BB second sub-peripheral region BB3, and the first electrostatic discharge sub-unit 410 in the corner region BB2, the space occupied by the corner region BB2 of the peripheral region BB can be saved. On the other hand, compared with the scheme in which the first electrostatic discharge sub-unit 410 and the second electrostatic discharge sub-unit 420 are located in the corner region BB2 at the same time, the first electrostatic discharge sub-unit 410 and the second electrostatic discharge sub-unit 420 of the electrostatic discharge unit can be arranged dispersedly, so that the electrostatic discharge capability of the GOA region is improved while the space occupied by the corner region BB2 of the peripheral region BB is further saved.

[0068] In the embodiment, the length direction of the first electrostatic discharge sub-unit 400 is the same as the length direction of the peripheral region. By arranging the length direction of the first electrostatic discharge sub-unit 400 to be the same as the length direction of the peripheral region, the length direction of the first electrostatic discharge sub-unit 400 can be consistent with the length direction of the corner region BB2, so as to avoid the increase of the width of the corner region of the peripheral region occupied by the first electrostatic discharge sub-unit 400.

[0069] In the embodiment, the length direction of the second electrostatic discharge sub-unit 400 is the same as the length direction of the peripheral region. By arranging the length direction of the second electrostatic discharge sub-unit 400 to be the same as the length direction of the peripheral region, the length direction of the second electrostatic discharge sub-unit 400 can be the same as the length direction of the peripheral region BB first sub-peripheral region BB1, so as to avoid the problem of the increase of the width of the corner region BB2 due to the fact that the length direction of the first electrostatic discharge sub-unit 400 is perpendicular to the length direction of the peripheral region BB first sub-peripheral region BB1.

[0070] The third embodiment of the present application provides a third display panel, referring to Figure 8 and Figure 9 The third embodiment is similar to the first embodiment, and the difference between the third embodiment and the first embodiment is that the static electricity release unit 400 further comprises a second static electricity release sub-unit 420, the second static electricity release sub-unit 420 is arranged in the peripheral area BB, and the second static electricity release sub-unit 400 is located between the effective shift register 110 and the redundant shift register 120.

[0071] In the embodiment, the peripheral area BB comprises a peripheral area BB first sub-area BB1, a corner area BB2, and a peripheral area BB second sub-area BB3, the corner area BB2 is located between the peripheral area BB first sub-area BB1 and the peripheral area BB second sub-area BB3, wherein the multi-stage effective shift register 110 is located in the peripheral area BB first sub-area BB1, the redundant shift register 120 is located in the peripheral area BB second sub-area BB3, and the first static electricity release sub-unit 410 and the second static electricity release sub-unit 420 are located in the corner area BB2. By arranging the multi-stage effective shift register 110 in the peripheral area BB first sub-area BB1, the redundant shift register 120 in the peripheral area BB second sub-area BB3, and the first static electricity release sub-unit 410 in the corner area BB2, the space occupied by the corner area BB2 of the peripheral area BB is saved compared with the scheme of arranging the redundant shift register 120 in the corner area BB2.

[0072] In the embodiment, the length direction of the first static electricity release sub-unit 400 is the same as the length direction of the peripheral area. By arranging the length direction of the first static electricity release sub-unit 400 to be the same as the length direction of the peripheral area, the length direction of the first static electricity release sub-unit 400 can be consistent with the length direction of the corner area BB2, avoiding the increase of the width of the corner area of the peripheral area occupied by the first static electricity release sub-unit 400, which leads to the increase of the difficulty of the wiring of the peripheral area of the display panel.

[0073] In the embodiment, referring to Figure 7 , the second static electricity release sub-unit 420 and the first static electricity release sub-unit are arranged in the length direction of the peripheral area.

[0074] In the embodiment, the second static electricity release sub-unit 420 and the first static electricity release sub-unit 410 are arranged opposite to each other.

[0075] In the embodiment, referring to Figure 9 , the second static electricity release sub-unit 420 and the first static electricity release sub-unit 410 are arranged in a staggered manner.

[0076] The specific implementation of the present application is described in detail above. The above-described embodiments disclosed by the present application are only preferred embodiments of the present application, and many variations and improvements can be made by those of ordinary skill in the art without departing from the concept of the present application. These variations and improvements are all within the protection scope of the claims of the present application.

Claims

1. A display panel, characterized by, The display panel comprises a display area and a peripheral area surrounding the display area, and further comprises: a gate drive circuit provided in the peripheral area, the gate drive circuit comprising a plurality of effective shift registers and a redundant shift register provided in sequence, the redundant shift register being provided in a spaced manner with the effective shift registers; a first drive signal line provided in the peripheral area and electrically connected with the effective shift registers; a second drive signal line provided in the peripheral area and electrically connected with the redundant shift register; an electrostatic discharge unit provided in the peripheral area, the electrostatic discharge unit being electrically connected with the first drive signal line and the second drive signal line, for discharging static electricity of the first drive signal line and the second drive signal line, at least a part of the electrostatic discharge unit being located between the effective shift registers and the redundant shift register.

2. The display panel of claim 1, wherein, The electrostatic discharge unit comprises a first electrostatic discharge sub-unit provided in the peripheral area, the first electrostatic discharge sub-unit being located between the effective shift registers and the redundant shift register and electrically connected with the first drive signal line.

3. The display panel of claim 2, wherein, The electrostatic discharge unit further comprises a second electrostatic discharge sub-unit provided in the peripheral area, the second electrostatic discharge sub-unit being located on a side of the redundant shift register away from the second electrostatic discharge sub-unit and electrically connected with the second drive signal line.

4. The display panel of claim 2, wherein, The electrostatic discharge unit further comprises a second electrostatic discharge sub-unit provided in the peripheral area, the second electrostatic discharge sub-unit being located between the effective shift registers and the redundant shift register.

5. The display panel of claim 4, wherein, The second electrostatic discharge sub-unit and the first electrostatic discharge sub-unit are provided in a spaced manner in a length direction of the peripheral area.

6. The display panel of claim 2, wherein, The display panel further comprises a plurality of clock signal lines and a signal connection line, the plurality of clock signal lines being provided in a spaced manner and located between the first electrostatic discharge sub-unit and the first drive signal line, one end of the signal connection line being electrically connected with the first electrostatic discharge sub-unit, and the other end of the signal connection line being electrically connected with the first drive signal line, wherein the signal connection line crosses the plurality of clock signal lines, and a film layer in which the signal connection line is located is different from a film layer in which the clock signal lines are located.

7. The display panel of claim 6, wherein, The display panel further comprises: a substrate; a first metal layer provided on the substrate; a second metal layer provided on a side of the first metal layer away from the substrate; a third metal layer provided on a side of the second metal layer away from the substrate; wherein the signal connection line is located in the first metal layer, and the clock signal lines are located in the third metal layer.

8. The display panel of claim 6, wherein, The signal connection line crosses the second driving signal line, and a film layer where the second driving signal line is located is different from a film layer where the signal connection line is located.

9. The display panel according to any one of claims 2-8, characterized in that, The peripheral region comprises a first sub-peripheral region, a corner region, and a second sub-peripheral region, the corner region is located between the first sub-peripheral region and the second sub-peripheral region, wherein a plurality of levels of the effective shift register are located in the first sub-peripheral region, the redundant shift register is located in the second sub-peripheral region, and the first electrostatic discharge sub-unit is located in the corner region.

10. The display panel of any of claims 3-5, wherein, The length direction of the first electrostatic discharge sub-unit is the same as the length direction of the peripheral region, and the length direction of the second electrostatic discharge sub-unit is the same as the length direction of the peripheral region.

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