Display panel and display panel mother board

Abstract

The present application discloses a display panel and a display panel mother board, belonging to the field of display technology. The display panel includes: a driving circuit, at least one line to be detected, and at least one anti-corrosion conductive line corresponding to the at least one line to be detected one by one. Any one of the at least one line to be detected includes a disconnected first sub-line and a second sub-line, and the other end of the second sub-line is exposed at the edge of the display panel. And the second sub-line is used to be electrically connected to a detection unit outside the display panel before the display panel is cut. Therefore, the display panel can be electrically connected to the detection unit outside the display panel through the second sub-line to perform defect detection on the display panel. And the anti-corrosion conductive line can prevent the corrosion of the second sub-line exposed at the edge of the display panel from extending to the inside of the display panel. It can solve the problem that it is difficult to detect a faulty display panel in the related art.

Description

Technical Field

[0001] The present application relates to the field of display technologies, and particularly to a display panel and a mother board of a display panel. Background Art

[0002] A mother board of a display panel may include a plurality of connected display panels. After cutting the mother board of the display panel, independent display panels can be obtained. Currently, detection units are usually arranged in the peripheral area of the display panel to detect various circuits inside the display panel.

[0003] In a related display panel, the display panel has a display area and a peripheral area surrounding the display area, but no detection unit is provided in the peripheral area of the display panel. In this way, the structure in the peripheral area is simplified, the size of the peripheral area can be smaller, and thus the border of the display panel can be reduced.

[0004] However, since the above display panel is not provided with a detection unit, it is difficult to detect various circuits inside the display panel, resulting in difficulty in detecting a faulty display panel. Summary of the Invention

[0005] Embodiments of the present application provide a display panel and a mother board of a display panel. The technical solutions are as follows:

[0006] According to one aspect of the present application, a display panel is provided. The display panel includes: a driving circuit, at least one circuit to be detected, and at least one anti-corrosion conductive circuit corresponding to the at least one circuit to be detected one by one;

[0007] Any one of the at least one circuit to be detected includes a first sub-circuit and a second sub-circuit that are disconnected. The first sub-circuit is electrically connected to the anti-corrosion conductive circuit corresponding to the any one of the circuits to be detected and the driving circuit respectively. One end of the second sub-circuit is electrically connected to the corresponding anti-corrosion conductive circuit, and the other end of the second sub-circuit is exposed at the edge of the display panel;

[0008] Wherein, the second sub-circuit is used to be electrically connected to a detection unit outside the display panel before the display panel is cut.

[0009] Optionally, the anti-corrosion conductive circuit and the first sub-circuit are of a non-same layer structure, and the anti-corrosion conductive circuit and the second sub-circuit are of a non-same layer structure.

[0010] Optionally, the display panel includes a substrate and a first insulating layer located on the substrate;

[0011] The at least one line to be detected includes a first line to be detected, and the at least one anti-corrosion conductive line includes a first anti-corrosion conductive line. The first line to be detected and the first anti-corrosion conductive line are respectively located on two sides of the first insulating layer. The first sub-line and the second sub-line in the first line to be detected are of the same-layer structure, and the first sub-line in the first line to be detected is electrically connected to the first anti-corrosion conductive line through a first via hole in the first insulating layer, and the second sub-line is electrically connected to the first anti-corrosion conductive line through a second via hole in the first insulating layer.

[0012] Optionally, the first line to be detected is located between the first insulating layer and the substrate, and the first anti-corrosion conductive line is located on a side of the first insulating layer away from the substrate.

[0013] Optionally, the display panel further includes a second insulating layer, and the second insulating layer is located between the first insulating layer and the substrate;

[0014] The at least one line to be detected further includes a second line to be detected, and the second line to be detected is located between the second insulating layer and the substrate;

[0015] The first sub-line and the second sub-line in the second line to be detected are of the same-layer structure. The first anti-corrosion conductive line is electrically connected to the first sub-line in the second line to be detected through a third via hole in the first insulating layer and the second insulating layer, and the first anti-corrosion conductive line is electrically connected to the second sub-line in the second line to be detected through a fourth via hole in the first insulating layer and the second insulating layer.

[0016] Optionally, the display panel further includes a second insulating layer, and the second insulating layer is located between the first insulating layer and the substrate;

[0017] The line to be detected further includes a second line to be detected, and the second line to be detected is located between the second insulating layer and the substrate. The first sub-line and the second sub-line in the second line to be detected are of the same-layer structure. The line to be detected further includes a first intermediate line, and the first intermediate line is located between the first insulating layer and the second insulating layer. The first intermediate line is electrically connected to the first sub-line in the second line to be detected through a fifth via hole in the second insulating layer, and the first intermediate line is electrically connected to the first anti-corrosion conductive line through a sixth via hole in the first insulating layer;

[0018] The line to be detected further includes a second transfer line, which is electrically connected to a second sub-line in the second line to be detected through a seventh via hole in the second insulating layer, and is electrically connected to the first anti-corrosion conductive line through an eighth via hole in the first insulating layer.

[0019] Optionally, the display panel further includes a second insulating layer, which is located between the first insulating layer and the substrate;

[0020] The line to be detected further includes a second line to be detected, which is located between the second insulating layer and the substrate, and the first sub-line and the second sub-line in the second line to be detected are of the same layer structure;

[0021] The anti-corrosion conductive line further includes a second anti-corrosion conductive line, which is located on the side of the second insulating layer away from the substrate. The second anti-corrosion conductive line is electrically connected to the first sub-line in the second line to be detected through a ninth via hole in the second insulating layer, and is also electrically connected to the second sub-line in the second line to be detected through a tenth via hole in the second insulating layer.

[0022] Optionally, the first anti-corrosion conductive line is electrically connected to the first sub-line in the first line to be detected through at least two via holes in the first insulating layer.

[0023] Optionally, the material of the first anti-corrosion conductive line includes a transparent non-metallic conductive material.

[0024] Optionally, the display panel includes pixel electrodes, and the first anti-corrosion conductive line and the pixel electrodes are of the same layer structure.

[0025] According to another aspect of the present application, a display panel mother board is provided, which includes: at least one display panel and a to-be-cut board located outside the display panel;

[0026] The display panel includes a driving circuit, at least one line to be detected, and at least one anti-corrosion conductive line corresponding to the at least one line to be detected one by one;

[0027] Any line to be detected in the at least one line to be detected includes a disconnected first sub-line and second sub-line. The first sub-line is electrically connected to the anti-corrosion conductive line corresponding to the any line to be detected and the driving circuit respectively, and one end of the second sub-line is electrically connected to the corresponding anti-corrosion conductive line;

[0028] The plate to be cut has a detection unit and at least one detection line electrically connected to the detection unit. The at least one detection line corresponds to the at least one line to be detected one by one, and the other end of the second sub-line is electrically connected to the detection line corresponding to any line to be detected.

[0029] Optionally, the display panel includes a substrate and a first insulating layer on the substrate;

[0030] The at least one line to be detected includes a first line to be detected, and the at least one anti-corrosion conductive line includes a first anti-corrosion conductive line. The first line to be detected and the first anti-corrosion conductive line are respectively located on both sides of the first insulating layer. The first sub-line and the second sub-line in the first line to be detected are of the same layer structure, and the first sub-line in the first line to be detected is electrically connected to the first anti-corrosion conductive line through a first via on the first insulating layer, and the second sub-line is electrically connected to the first anti-corrosion conductive line through a second via on the first insulating layer;

[0031] The at least one detection line includes a first detection line corresponding to the first line to be detected, and the first line to be detected includes a data line;

[0032] The display panel mother board further includes a switch unit. The first detection line is electrically connected to the switch unit, and the switch unit is electrically connected to the detection unit.

[0033] Optionally, the display panel further includes a second insulating layer located between the first insulating layer and the substrate;

[0034] The at least one line to be detected further includes a second line to be detected located between the second insulating layer and the substrate;

[0035] The first sub-line and the second sub-line in the second line to be detected are of the same layer structure. The first anti-corrosion conductive line is electrically connected to the first sub-line in the second line to be detected through a third via on the first insulating layer and the second insulating layer, and the first anti-corrosion conductive line is electrically connected to the second sub-line in the second line to be detected through a fourth via on the first insulating layer and the second insulating layer;

[0036] The at least one detection line includes a second detection line corresponding to the second line to be detected, and the second line to be detected includes a gate driving signal line;

[0037] The second detection line is electrically connected to the detection unit.

[0038] Optionally, the switch unit is located in the plate to be cut.

[0039] Optionally, the display panel has a display area and a peripheral area surrounding the display area, and a fan-out area is provided in the peripheral area between the first side and the second side of the display area;

[0040] The switch unit and the detection unit are located in the plate to be cut outside the third side of the display panel, and the third side is the side opposite to the second side;

[0041] Alternatively, the switch unit and the detection unit are located in the plate to be cut outside the second side of the display panel.

[0042] Optionally, the display panel has a display area and a peripheral area surrounding the display area, a fan-out area is provided in the peripheral area outside the first side of the display area, and the switch unit is located in the peripheral area outside the fourth side of the display area, and the fourth side is the side opposite to the first side.

[0043] Optionally, the detection unit includes two sub-detection units, and the two sub-detection units are respectively located in the plate to be cut outside the two ends of the second side.

[0044] The beneficial effects brought by the technical solution provided by the embodiments of the present application at least include:

[0045] The embodiments of the present application provide a display panel, which includes: a driving circuit, at least one line to be detected, and at least one anti-corrosion conductive line corresponding to the at least one line to be detected one by one. Any one of the at least one line to be detected includes a disconnected first sub-line and a second sub-line, and the other end of the second sub-line is exposed at the edge of the display panel. And the second sub-line is used to be electrically connected to a detection unit outside the display panel before the display panel is cut. Therefore, the display panel can be electrically connected to the detection unit outside the display panel through the second sub-line to perform a defect detection on the display panel, and the first sub-line and the second sub-line in the line to be detected are electrically connected through the anti-corrosion conductive line. The anti-corrosion conductive line can prevent the corrosion of the second sub-line exposed at the edge of the display panel from extending to the inside of the display panel. It can solve the problem that it is difficult to detect a faulty display panel in the related art and improve the detection effect of the display panel. Description of the Drawings

[0046] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0047] Figure 1 is a schematic structural diagram of a mother board of a display panel;

[0048] Figure 2 is a schematic structural diagram of a display panel provided by an embodiment of the present application;

[0049] Figure 3 is Figure 2 a schematic cross-sectional view of the display panel shown along the F1-F2 connection line;

[0050] Figure 4 is Figure 2 a partial structural diagram of the display panel shown;

[0051] Figure 5 is Figure 4 a schematic cross-sectional structure diagram of the display panel shown along the A1-A2 connection line;

[0052] Figure 6 is a partial cross-sectional structure diagram of another display panel provided by an embodiment of the present application;

[0053] Figure 7 is a partial cross-sectional structure diagram of another display panel provided by an embodiment of the present application;

[0054] Figure 8 is a partial cross-sectional structure diagram of another display panel provided by an embodiment of the present application;

[0055] Figure 9 is a schematic structural diagram of a mother board of a display panel provided by an embodiment of the present application;

[0056] Figure 10 is a schematic structural diagram of another mother board of a display panel provided by an embodiment of the present application;

[0057] Figure 11 is a schematic diagram of a switching unit shown in an embodiment of the present application;

[0058] Figure 12 is a schematic structural diagram of a detection unit provided by an embodiment of the present application;

[0059] Figure 13 is a schematic structural diagram of another mother board of a display panel provided by an embodiment of the present application;

[0060] Figure 14 It is a schematic structural diagram of another display panel mother board provided by an embodiment of the present application;

[0061] Figure 15 It is a schematic structural diagram of another display panel mother board provided by an embodiment of the present application.

[0062] Through the above-mentioned drawings, the specific embodiments of the present application have been shown, and there will be more detailed descriptions hereinafter. These drawings and textual descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. Detailed Embodiments

[0063] To make the objectives, technical solutions, and advantages of the present application clearer, the embodiments of the present application will be further described in detail below in conjunction with the drawings.

[0064] Figure 1 It is a schematic structural diagram of a display panel mother board. As Figure 1 shown, the display panel mother board includes a display panel. The display panel mother board 10 includes a display panel 11 and a to-be-cut board 12 located around the display panel 11. Multiple display panels 11 can be fabricated on the display panel mother board simultaneously. The display panel 11 includes an active area (AA) 111 and a peripheral area 112 disposed around the active area 111. The peripheral area 112 includes data lines 1125 and gate control signal lines 1126 located in the fanout area. The peripheral area 112 further includes an IC chip (Integrated Circuit Chip) area 1121 on one side of the fanout area, an outer lead bonding (OLB) pad 1122, and two flexible printed circuits (FPCs) 1123. The two flexible printed circuits 1123 are respectively located on both sides of the IC chip area 1121. The IC chip area 1121 is used to place IC chips subsequently.

[0065] The peripheral area 112 further includes gate driver on array (GOA) circuits 1124 on both sides of the display area 111.

[0066] In the related art, after the display panel mother board is fabricated, it needs to be subjected to defect detection, which includes electric test (ET). Then, the display panel mother board is cut to form a display panel. The detection unit is usually disposed on both sides of the IC chip area 1121 on the display panel 11.

[0067] However, the display panel 11 in the display panel mother board 10 can be an irregular-shaped screen. The irregular-shaped screen is different from the rectangular screen of a conventional display panel. The irregular-shaped screen can include a polygon screen with a large chamfer and a circular screen. The peripheral area of the irregular-shaped screen is usually narrow.

[0068] Since the area on the fan-out side of the peripheral area 112 of the display panel 11 is small, there is no position to place the detection unit, which in turn causes the display panel mother board to be unable to perform defect detection during the manufacturing process.

[0069] Alternatively, the data lines and gate control signal lines in the display panel are directly connected to external detection units during the manufacturing process for detection. However, after the display panel mother board is cut into a display panel, the data lines and gate control signal lines will be exposed at the edge of the display panel, and thus are vulnerable to corrosion by the external environment. Moreover, the corrosion on the data lines and gate control signal lines will extend along the lines to be detected into the interior of the display panel, resulting in a poor display effect of the display panel.

[0070] The embodiments of the present application provide a display panel and a display panel mother board, which can solve the problems existing in the above related technologies.

[0071] Figure 2 It is a schematic structural diagram of a display panel provided by an embodiment of the present application. Figure 3 is Figure 2 a cross-sectional schematic diagram of the display panel shown along the connection line F1-F2. Please refer to Figure 2 and Figure 3 . The display panel 21 includes a driving circuit ( Figure 2 not shown), at least one line to be detected 211, and at least one anti-corrosion conductive line 212 corresponding to the at least one line to be detected 211 one by one. The display panel 21 has a display area 214 and a peripheral area 213 surrounding the display area 214. The driving circuit can be located in the display area 214 and the peripheral area 213 of the display panel 21.

[0072] Any one of the at least one line to be detected 211 includes a disconnected first sub-line 211A and a second sub-line 211B. The first sub-line 211A is electrically connected to the anti-corrosion conductive line 212 corresponding to any one of the lines to be detected 211 and the driving circuit 215 respectively. One end 211B1 of the second sub-line 211B is electrically connected to the corresponding anti-corrosion conductive line 212.

[0073] Wherein, the second sub-line is used to be electrically connected to a detection unit outside the display panel before the display panel is cut. The detection unit can be used to perform defect detection on the display panel.

[0074] In subsequent steps of manufacturing the display panel, the display panel can be cut out from the display panel mother board to obtain the display panel. After the display panel mother board is cut along the edge of the display panel, since the other end 211B2 of the second sub-line 211B is electrically connected to a detection unit outside the display panel, the other end 211B2 of the second sub-line 211B is exposed at the edge of the display panel.

[0075] The anti-corrosion conductive line is not easily corroded, which can prevent the corrosion caused by the second sub-line exposed at the edge of the display panel from extending to the inside of the display panel.

[0076] In summary, the embodiment of the present application provides a display panel, which includes: a driving circuit, at least one line to be detected, and at least one anti-corrosion conductive line corresponding to the at least one line to be detected one by one. Any one of the at least one line to be detected includes a disconnected first sub-line and a second sub-line, and the other end of the second sub-line is exposed at the edge of the display panel. And the second sub-line is used to be electrically connected to a detection unit outside the display panel before the display panel is cut. Therefore, the display panel can be electrically connected to the detection unit outside the display panel through the second sub-line to perform defect detection on the display panel, and the first sub-line and the second sub-line in the line to be detected are electrically connected through the anti-corrosion conductive line. The anti-corrosion conductive line can prevent the corrosion of the second sub-line exposed at the edge of the display panel from extending to the inside of the display panel. It can solve the problem that it is difficult to detect a faulty display panel in the related art and improve the detection effect of the display panel.

[0077] Optionally, as Figure 3 shown, the anti-corrosion conductive line 212 and the first sub-line 211A are of a non-same layer structure, and the anti-corrosion conductive line 212 and the second sub-line 211B are of a non-same layer structure. The first sub-line 211A and the second sub-line 211B can be further isolated by the cross-layer anti-corrosion conductive line 212, and thus the anti-corrosion performance can be further improved.

[0078] Furthermore, Figure 4 is Figure 2 a schematic diagram of a partial 22A structure in the display panel shown. As Figure 4 shown, in the subsequent manufacturing process of the display panel, an IC chip can be set, and the IC chip can include pins. The pins of the IC chip can be matched with the anti-corrosion conductive line 212, so that the IC chip can be electrically connected to the first sub-line 211A in the line to be detected 211 through the anti-corrosion conductive line 212, and then be electrically connected to the driving circuit. And the first sub-line 211A in the line to be detected 211 and the first sub-line 211A in the line to be detected 211 can be located in the gap between the pins of the IC chip, which can further save space on the display panel.

[0079] In an alternative embodiment, as Figure 5 shown, Figure 5 is Figure 4 a schematic cross-sectional structure diagram of the display panel shown along the connection line A1 - A2. The display panel may include a substrate 24 and a first insulating layer 25 located on the substrate 24. The first insulating layer 25 may be a passivation layer (English: passivation; abbreviation: PVX).

[0080] At least one line to be detected may include a first line to be detected 2111. The first line to be detected 2111 may be a data line (Data) on the display panel, and is used to provide data signals for the driving circuit on the display panel. The display panel may also include a source-drain metal pattern (English: source&drain; abbreviation: SD). The first line to be detected 2111 and the source-drain metal pattern may be of the same layer structure.

[0081] At least one anti-corrosion conductive line 212 includes a first anti-corrosion conductive line 2121. The first line to be detected 2111 and the first anti-corrosion conductive line 2121 are respectively located on both sides of the first insulating layer 25. The first sub-line 2111A and the second sub-line 2111B in the first line to be detected 2111 are of the same layer structure. There may be a disconnection hole K1 between the first sub-line 2111A and the second sub-line 2111B in the first line to be detected 2111.

[0082] And the first sub-line 2111A in the first line to be detected 2111 is electrically connected to the first anti-corrosion conductive line 2121 through a first via 251 on the first insulating layer 25. The second sub-line 2111B is electrically connected to the first anti-corrosion conductive line 2121 through a second via 252 on the first insulating layer 25. The first sub-line 2111A in the first line to be detected 2111 may be connected to the driving circuit. One end of the second sub-line 2111B away from the first sub-line 2111A is exposed at the edge of the display panel, and this exposed part is more likely to be corroded.

[0083] In this way, the first sub-line 2111A and the second sub-line 2111B in the first line to be detected 2111 can be electrically connected through the first anti-corrosion conductive line 2121. The first anti-corrosion conductive line 2121 can prevent the corrosion caused by the second sub-line 2111B exposed at the edge of the display panel from extending to the first sub-line 2111A, and further can prevent the corrosion from extending to the driving circuit. Moreover, the first anti-corrosion conductive line 2121 can prevent the static electricity attracted by the second sub-line 2111B exposed at the edge of the display panel from extending to the first sub-line 2111A, and further can prevent the static electricity from extending to the driving circuit.

[0084] In addition, an anisotropic conductive film (ACF for short) can be disposed between the first anti-corrosion conductive line and the pin of the IC chip. The anisotropic conductive film is a film in which conductive particles are dispersed in an insulating adhesive, and can be used for electrical connection between the pin of the IC chip and the first anti-corrosion circuit. At the same time, the anisotropic conductive film can protect the first anti-corrosion conductive line and avoid corrosion caused by the exposure of the via hole on the side of the first anti-corrosion conductive line close to the substrate.

[0085] In an alternative example, as Figure 5 shown, the first line to be detected 2111 is located between the first insulating layer 25 and the substrate 24, and the first anti-corrosion conductive line 2121 is located on the side of the first insulating layer 25 away from the substrate 24.

[0086] In addition, the first line to be detected can also be located on the side of the first insulating layer away from the substrate, and the first anti-corrosion conductive line can also be located on the side of the first insulating layer close to the substrate. And the first sub-line in the first line to be detected is electrically connected to the first anti-corrosion conductive line through a via hole in the first insulating layer. The second sub-line is electrically connected to the first anti-corrosion conductive line through a via hole in the first insulating layer. The embodiments of the present application do not limit this here.

[0087] In an alternative implementation manner, as Figure 6 shown, Figure 6 is a schematic partial cross-sectional structure diagram of another display panel provided by the embodiments of the present application. The display panel may further include a second insulating layer 26, and the second insulating layer 26 is located between the first insulating layer 25 and the substrate 24. The second insulating layer 26 may be a gate insulator (GI for short).

[0088] At least one line to be detected may further include a second line to be detected 2112. The second line to be detected 2112 may be a gate driving signal line, and the gate driving signal line may be connected to a gate driving circuit on the display panel. The gate driving circuit (GOA) may include a plurality of gate driving units, and each gate driving unit may include a plurality of thin film transistors (TFTs for short). Among them, each gate driving unit corresponds to a row of gate lines, that is, the output end of each gate driving unit is connected to a row of gate lines, and can provide a gate driving signal for the driving circuit on the display panel.

[0089] The second circuit to be detected 2112 is located between the second insulating layer 26 and the substrate 24. The first sub-circuit 2112A and the second sub-circuit 2112B in the second circuit to be detected 2112 are of the same layer structure. The display panel may further include a gate metal pattern (English: Gate), and the first sub-circuit 2112A and the second sub-circuit 2112B in the second circuit to be detected 2112 may be of the same layer structure as the gate metal pattern.

[0090] There may be a disconnection hole K2 between the first sub-circuit 2112A and the second sub-circuit 2112B in the second circuit to be detected 2112.

[0091] The first anti-corrosion conductive circuit 2121 is electrically connected to the first sub-circuit 2112A in the second circuit to be detected 2112 through the first insulating layer 25 and the third via 263 on the second insulating layer 26, and the first anti-corrosion conductive circuit 2121 is electrically connected to the second sub-circuit 2112B in the second circuit to be detected 2112 through the first insulating layer 25 and the fourth via 264 on the second insulating layer 26. The first sub-circuit 2112A in the second circuit to be detected 2112 may be connected to the driving circuit. One end of the second sub-circuit 2112B far from the first sub-circuit 2112A is exposed at the edge of the display panel, and this exposed part is more likely to be corroded.

[0092] In this way, the first sub-circuit 2112A and the second sub-circuit 2112B in the second circuit to be detected 2112 can be electrically connected through the first anti-corrosion conductive circuit 2121. The first anti-corrosion circuit 2121 can prevent the corrosion caused by the second sub-circuit 2112B exposed at the edge of the display panel from extending to the first sub-circuit 2112A, and thus can prevent the corrosion from extending to the driving circuit. Moreover, the first anti-corrosion circuit 2121 can prevent the static electricity attracted by the second sub-circuit 2112B exposed at the edge of the display panel from extending to the first sub-circuit 2112A, and thus can prevent the static electricity from extending to the driving circuit.

[0093] Optionally, as Figure 7 shown, Figure 7 is a schematic partial cross-sectional structure diagram of another display panel provided by an embodiment of the present application. The circuit to be detected 211 further includes a first transfer circuit 2113, and the first transfer circuit 2113 is located between the first insulating layer 25 and the second insulating layer 26. For example, the first transfer circuit 2113 may be of the same layer structure as the source-drain metal pattern. And the first transfer circuit 2113 is electrically connected to the first sub-circuit 2112A in the second circuit to be detected 2112 through the fifth via 265 on the second insulating layer 26. The first sub-circuit 2112A in the second circuit to be detected 2112 may be connected to the driving circuit.

[0094] In addition, the first intermediate circuit 2113 can also be electrically connected to the first sub-circuit 2112A in the second circuit to be detected 2112 through two or more vias on the second insulating layer 26, so as to increase the stability of the electrical connection.

[0095] The first intermediate circuit 2113 is electrically connected to the first anti-corrosion conductive circuit 2121 through the sixth via 256 on the first insulating layer 25. There may be multiple insulating layers between the first anti-corrosion conductive circuit 2121 and the second circuit to be detected 2112. By arranging the first intermediate circuit 2113 to connect the first anti-corrosion conductive circuit 2121 and the first sub-circuit 2112A of the second circuit to be detected 2112, the instability of the electrical connection caused by too long vias can be avoided.

[0096] In addition, the first intermediate circuit 2113 can also be electrically connected to the first anti-corrosion conductive circuit 2121 through two or more vias on the first insulating layer 25. On the one hand, the stability of the electrical connection can be increased, and on the other hand, the resistance of the first anti-corrosion conductive circuit 2121 in the direction parallel to the substrate 24 can be reduced.

[0097] The circuit to be detected 211 further includes a second intermediate circuit 2114. The second intermediate circuit 2114 is electrically connected to the second sub-circuit 2112B in the second circuit to be detected 2112 through the seventh via 267 on the second insulating layer 26, and the second intermediate circuit 2114 is electrically connected to the first anti-corrosion conductive circuit 2121 through the eighth via 258 on the first insulating layer 25. One end of the second sub-circuit 2112B far from the first sub-circuit 2112A is exposed at the edge of the display panel, and this exposed part is more likely to be corroded.

[0098] The first intermediate circuit 2113 and the second intermediate circuit 2114 can be disconnected, and there may be a disconnection hole K3.

[0099] In this way, the first sub-circuit 2112B and the second sub-circuit 2112B in the second circuit to be detected 2112 can be electrically connected through the first intermediate circuit 2113, the first anti-corrosion conductive circuit 2121, and the second intermediate circuit 2114. The first anti-corrosion conductive circuit 2121 can prevent the corrosion caused by the second sub-circuit 2112B exposed at the edge of the display panel from extending to the first sub-circuit 2112A, and further prevent the corrosion from extending to the driving circuit. Moreover, the first anti-corrosion conductive circuit 2121 can prevent the static electricity attracted by the second sub-circuit 2112B exposed at the edge of the display panel from extending to the first sub-circuit 2112A, and further prevent the static electricity from extending to the driving circuit.

[0100] Optionally, as Figure 8 shown, Figure 8It is a schematic partial cross-sectional structure diagram of another display panel provided by an embodiment of the present application. The anti-corrosion conductive line 212 further includes a second anti-corrosion conductive line 2122, and the second anti-corrosion conductive line 2122 is located on the side of the second insulating layer 26 away from the substrate 24. The display panel may further include a third insulating layer 27, and the third insulating layer 27 is located on the side of the second anti-corrosion conductive line 2122 away from the substrate 24.

[0101] The second anti-corrosion conductive line 2122 is electrically connected to the first sub-line 2112A in the second line to be detected 2112 through the ninth via 269 on the second insulating layer 26, and is also electrically connected to the second sub-line 2112B in the second line to be detected 2112 through the tenth via 2610 on the second insulating layer 26. The first sub-line 2112A and the second sub-line 2112B in the second line to be detected 2112 are disconnected and may have a break connection hole K2.

[0102] In this way, the first sub-line 2112A and the second sub-line 2112B in the second line to be detected 2112 can be electrically connected through the second anti-corrosion conductive line 2122. The second anti-corrosion line 2122 can prevent the corrosion caused by the second sub-line 2112B exposed at the edge of the display panel from extending to the first sub-line 2112A, and further can prevent the corrosion from extending to the driving circuit. Moreover, the second anti-corrosion line 2122 can prevent the static electricity attracted by the second sub-line 2112B exposed at the edge of the display panel from extending to the first sub-line 2112A, and further can prevent the static electricity from extending to the driving circuit.

[0103] Optionally, as Figure 5 shown, the first anti-corrosion conductive line 2121 is electrically connected to the first sub-line 2111A of the first line to be detected 2111 through at least two vias on the first insulating layer 25. It should be noted that Figure 5 only the case where the first sub-line 2111A of the first line to be detected 2111 and the first anti-corrosion conductive line 2121 can be electrically connected through the first via 251 and the eleventh via 2511 on the first insulating layer 25 is shown. The first anti-corrosion conductive line 2121 can also be electrically connected to the first sub-line 2111A of the first line to be detected 2111 through more vias on the first insulating layer 25. The embodiments of the present application do not limit this.

[0104] In this way, the contact area between the first anti-corrosion conductive line 2121 and the first sub-line 2111A of the first line to be detected 2111 can be increased. Thus, on the one hand, the connection stability between the first anti-corrosion conductive line 2121 and the first sub-line 2111A of the first line to be detected 2111 can be enhanced. On the other hand, the horizontal resistance of the first anti-corrosion conductive line 2121 in the direction parallel to the substrate 11 can be reduced.

[0105] Similarly, as Figure 5 shown, the first anti-corrosion conductive line 2121 can be electrically connected to the first sub-line 2112A of the second line to be detected 2112 through at least two vias in the first insulating layer 25 and the second insulating layer 26.

[0106] As Figure 7 shown, the first anti-corrosion conductive line 2121 can be electrically connected to the first intermediate line 2113 through at least two vias in the first insulating layer 25.

[0107] As Figure 8 shown, the second anti-corrosion conductive line 2122 can be electrically connected to the first sub-line 2112A of the second line to be detected 2112 through at least two vias in the second insulating layer 26.

[0108] Optionally, as Figure 8 shown, the material of the first anti-corrosion conductive line 2121 includes a transparent non-metallic conductive material, and the transparent non-metallic conductive material can be indium tin oxide (English: Indium tin oxide; abbreviation: ITO). The material of the second anti-corrosion conductive line 2122 can be the same as the material of the first anti-corrosion conductive line 2121.

[0109] Optionally, the display panel includes pixel electrodes, and the first anti-corrosion conductive line and the pixel electrodes are of the same layer structure. In this way, during the process of manufacturing the display panel, the first anti-corrosion conductive line and the pixel electrodes can be formed through one patterning process, which can save the manufacturing process.

[0110] Figure 9 is a schematic structural diagram of a display panel mother board provided by an embodiment of the present application. As Figure 10 shown, the display panel mother board 20 includes at least one display panel 21 and a plate to be cut 22 located outside the display panel 21.

[0111] The display panel 21 is any display panel in the above embodiments. The display panel 21 includes a driving circuit ( Figure 2 not shown), at least one line to be detected 211, and at least one anti-corrosion conductive line 212 corresponding to at least one line to be detected 211 one by one. The display panel 21 has a display area 214 and a peripheral area 213 surrounding the display area 214, and the driving circuit can be located in the display area 214 and the peripheral area 213 of the display panel 21.

[0112] As Figure 3As shown, any one of the at least one line to be detected 211 in the lines to be detected 211 includes a disconnected first sub-line 211A and a second sub-line 211B. The first sub-line 211A is electrically connected to the anti-corrosion conductive line 212 corresponding to any one of the lines to be detected 211 and the drive circuit 215 respectively. One end 211B1 of the second sub-line 211B is electrically connected to the corresponding anti-corrosion conductive line 212.

[0113] As Figure 9 As shown, the plate to be cut 22 in the display panel mother board 20 has a detection unit 221 and at least one detection line 222 electrically connected to the detection unit 221. The at least one detection line 222 corresponds one-to-one with the at least one line to be detected 211. The other end of the second sub-line is electrically connected to the detection line 222 corresponding to any one of the lines to be detected 211. The detection unit 221 can be used to perform defect detection on the display panel mother board 20.

[0114] At least one detection line 222 can be of the same layer structure as the source-drain metal pattern or of the same layer structure as the gate metal pattern.

[0115] In the subsequent steps of manufacturing the display panel 21, the plate to be cut 22 of the display panel mother board 20 can be removed to obtain the display panel 21. After the display panel mother board 20 is cut along the edge of the display panel 21, since the other end of the second sub-line is electrically connected to the detection line 222 corresponding to any one of the lines to be detected 211, and the detection line 222 is removed along with the plate to be cut 22, the other end of the second sub-line is exposed at the edge of the display panel 21.

[0116] The anti-corrosion conductive line is not easily corroded, which can prevent the corrosion caused by the second sub-line exposed at the edge of the display panel from extending to the inside of the display panel.

[0117] In summary, the embodiment of the present application provides a display panel mother board, which includes at least one display panel and a to-be-cut board located outside the display panel. Among them, the display panel includes: a driving circuit, at least one to-be-detected line, and at least one anti-corrosion conductive line corresponding to the at least one to-be-detected line one by one. Any one of the at least one to-be-detected lines includes a disconnected first sub-line and a second sub-line, and the other end of the second sub-line is exposed at the edge of the display panel. And the second sub-line is used to be electrically connected to a detection unit outside the display panel before the display panel is cut. Therefore, the display panel can be electrically connected to the detection unit outside the display panel through the second sub-line to perform a defect detection on the display panel, and the first sub-line and the second sub-line in the to-be-detected line are electrically connected through the anti-corrosion conductive line. The anti-corrosion conductive line can prevent the corrosion of the second sub-line exposed at the edge of the display panel from extending into the interior of the display panel. It can solve the problem in the related art that it is difficult to detect a faulty display panel and improve the detection effect of the display panel.

[0118] Optionally, as Figure 10 shown, Figure 10 FIG. is a schematic structural diagram of another display panel mother board provided by the embodiment of the present application. During the manufacturing process of the display panel 21, due to the requirements of the cutting process of the display panel mother board 20, a virtual (English: Dummy) bar area 223 needs to be set between the display panels 21. The virtual bar area 223 is located in the to-be-cut board 22, and the width of the virtual bar area 223 can be 3 mm. The detection unit 221 in the embodiment of the present application can be placed on the virtual bar area, thereby avoiding occupying extra space on the display panel mother board 20 and improving the utilization rate of the display panel mother board 20.

[0119] In an alternative implementation, as Figure 9 shown, at least one detection line 222 includes a first detection line 2221. The first detection line 2221 corresponds to the first to-be-detected line 2111, and the first to-be-detected line 2111 may include a data line. The first detection line 2221 may be of the same layer structure as the source-drain metal pattern.

[0120] The display panel mother board 20 may further include a switch (English: Switch) unit 201. The first detection line 2221 is electrically connected to the switch unit 201, and the switch unit 201 is electrically connected to the detection unit 221 through a plurality of signal lines.

[0121] At least one detection line 222 includes a second detection line 2222, the second detection line 2222 corresponding to the second line to be detected 2112, and the second line to be detected 2112 may include a gate drive signal line. The second detection line 2222 is electrically connected to the detection unit 221. The second detection line 2222 may be of the same layer structure as the gate metal pattern.

[0122] Exemplarily, as Figure 11 shown, Figure 11 is a schematic diagram of a switching unit shown in an embodiment of the present application. When the pixel units on the display panel include pixel units of three colors: red (Red), green (Green), and blue (Blue), the switching unit 201 may include a red signal line (English: Data Red; abbreviation: DR) 201R, a green signal line (English: Data Green; abbreviation: DG) 201G, a blue signal line (English: Data Blue; abbreviation: DB) 201B, and a switch signal line (English: Switch; abbreviation: SW) 201SW. The switching unit 201 may include a plurality of transistors 2011, the gates of the plurality of transistors 2011 being connected to the switch signal line 201SW to form a control end of the switching unit 201. The first poles of the plurality of transistors 2011 are connected to the red signal line 201R, the green signal line 201G, and the blue signal line 201B to form an input end of the switching unit 201, and the second poles of the plurality of transistors 2011 are connected to the first detection line 2221 to form an output end of the switching unit 201.

[0123] The input end of the switching unit 201 is used to receive the data signal output by the detection unit 221, and the output end of the switching unit is used to output the data signal to the first detection line 2221. When a valid switch signal is received at the control end of the switching unit, the input end of the switching unit is conducted with the output end of the switching unit.

[0124] Optionally, as Figure 9 shown, the switching unit 201 is located in the plate to be cut 22. In the subsequent manufacturing process of the display panel mother board, since the other end of the second sub-line in the first line to be detected is electrically connected to the first detection line 2221, and the first detection line 2221 and the switching unit 201 will be cut off together with the plate to be cut 22. The other end of the second sub-line in the first line to be detected is exposed at the edge of the display panel 21. The anti-corrosion conductive line is not easily corroded, and it is possible to prevent the corrosion caused by the second sub-line exposed at the edge of the display panel from extending to the inside of the display panel.

[0125] As Figure 12 shown, Figure 12It is a schematic structural diagram of a detection unit provided by an embodiment of the present application. The detection unit 221 includes a plurality of detection terminals 2212 (English: ET Pad). The detection terminal 2212 can be used to receive a detection signal, and transmit the detection signal to the switch unit through a red signal line 201R, a green signal line, a blue signal line 201B, and a switch signal line 201SW, and transmit the detection signal to the gate drive circuit through a plurality of gate drive signal lines 2211.

[0126] Optionally, as Figure 13 shown, Figure 13 It is a schematic structural diagram of another display panel mother board provided by an embodiment of the present application. The display panel 21 has a display area 214 and a peripheral area 213 surrounding the display area 214. A fanout area (English: Fanout) 2134 is provided in the peripheral area 213 between the first side D1 of the display area 214 and the second side D2 of the display panel 21. The switch unit 201 and the detection unit 221 are located in the to-be-cut board 22 outside the third side D3 of the display panel 21, and the third side D3 is the side opposite to the second side D2. That is, the switch unit 201 and the detection unit 221 are located on the side where the data pads of the display panel are located (English: Data Pad Offside; abbreviation: DO). The switch unit 201 is electrically connected to the detection unit 221 through a plurality of signal lines 2012. The switch unit 201 is connected to the to-be-detected line in the display panel through a plurality of detection lines. Figure 13 The connection manner between the to-be-detected line and the anti-corrosion conductive line in the display panel in Figure 2 is the same as the connection manner on the display panel shown in

[0127] or, as Figure 9 shown, the switch unit 201 and the detection unit 221 are located in the to-be-cut board 22 outside the second side of the display panel 21. That is, the switch unit 201 and the detection unit 221 are located on the side where the data pads (English: Data Pad; abbreviation: DP) of the display panel are located. In this way, the wiring length of the to-be-detected line can be reduced, and the manufacturing process can be saved.

[0128] Optionally, as Figure 14 shown, Figure 14It is a schematic structural diagram of another display panel mother board provided by an embodiment of the present application. The switch unit 201 is located in the peripheral area 213 outside the fourth side D4 of the display area 214, and the fourth side D4 is the side opposite to the first side D1. The detection unit 221 is located in the to-be-cut board 22 outside both ends of the third side D3. In this way, the area of the to-be-cut board on the display panel mother board can be saved, and the utilization rate of the display panel mother board can be improved. The detection unit 221 can be a miniaturized detection unit. Exemplarily, the detection unit can be a flexible circuit board type detection unit. In the embodiment of the present application, the switch unit 201 is located on the side where the data pads of the display panel 21 are opposite. When detecting the display panel 21, the display panel mother board 20 can be first cut into a square panel. At this time, the display panel mother board includes a detection unit, and the display panel 21 can be subjected to defect detection. After the detection is completed, the display panel mother board is cut to remove the to-be-cut board 22, and the detection unit 221 is removed together with the to-be-cut board 22. The switch unit 201 is retained in the peripheral area 213 of the display panel 21, and the switch signal line in the switch unit 201 can be used to receive the gate low voltage (English: V Gate Low; abbreviation: VGL) signal, so that the switch unit 201 can be in the off state, avoiding the switch unit 201 from transmitting an electrical signal to the display area 214 of the display panel 21.

[0129] Optionally, as Figure 15 shown, Figure 15 It is a schematic structural diagram of another display panel mother board provided by an embodiment of the present application. The detection unit 221 includes two sub-detection units (221A and 221B), and the two sub-detection units (221A and 221B) are respectively located in the cut panel 22 outside both ends of the second side D2. In this way, the area of the to-be-cut board on the display panel mother board can be saved, and the utilization rate of the display panel mother board can be improved.

[0130] In summary, the embodiment of the present application provides a display panel mother board, which includes at least one display panel and a to-be-cut board located outside the display panel. Among them, the display panel includes: a driving circuit, at least one to-be-detected line, and at least one anti-corrosion conductive line corresponding to the at least one to-be-detected line one by one. Any one of the at least one to-be-detected lines includes a disconnected first sub-line and a second sub-line, and the other end of the second sub-line is exposed at the edge of the display panel. And the second sub-line is used to be electrically connected to a detection unit outside the display panel before the display panel is cut. Therefore, the display panel can be electrically connected to the detection unit outside the display panel through the second sub-line to perform a defect detection on the display panel, and the first sub-line and the second sub-line in the to-be-detected line are electrically connected through the anti-corrosion conductive line. The anti-corrosion conductive line can prevent the corrosion of the second sub-line exposed at the edge of the display panel from extending to the inside of the display panel. It can solve the problem that it is difficult to detect a faulty display panel in the related art and improve the detection effect of the display panel.

[0131] It should be noted that in the drawings, the dimensions of layers and regions may be exaggerated for clarity of illustration. Also, it can be understood that when an element or layer is referred to as being "on" another element or layer, it can be directly on the other element, or there may be an intermediate layer. Additionally, it can be understood that when an element or layer is referred to as being "under" another element or layer, it can be directly under the other element, or there may be more than one intermediate layer or element. Further, it can be understood that when a layer or element is referred to as being "between" two layers or two elements, it can be the only layer between the two layers or two elements, or there may be more than one intermediate layer or element. Like reference numerals throughout indicate like elements.

[0132] In the present application, the terms "first", "second", "third", "fourth", "fifth", "sixth", "seventh", "eighth", "ninth", "tenth" and "eleventh" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. The term "plurality" means two or more, unless otherwise clearly defined.

[0133] The above are only optional embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A display panel, characterized in that, The display panel includes a driving circuit, at least one line to be detected, and at least one anti-corrosion conductive line corresponding to the at least one line to be detected one by one; Any one of the at least one line to be detected includes a disconnected first sub-line and a second sub-line. The first sub-line is electrically connected to the anti-corrosion conductive line corresponding to the any one of the lines to be detected and the driving circuit respectively. One end of the second sub-line is electrically connected to the corresponding anti-corrosion conductive line, and the other end of the second sub-line is exposed at the edge of the display panel; Wherein, the second sub-line is used to be electrically connected to a detection unit outside the display panel before the display panel is cut; The anti-corrosion conductive line and the first sub-line are of a non-same layer structure, and the anti-corrosion conductive line and the second sub-line are of a non-same layer structure; The display panel includes a substrate and a first insulating layer located on the substrate; The at least one line to be detected includes a first line to be detected, and the at least one anti-corrosion conductive line includes a first anti-corrosion conductive line. The first line to be detected and the first anti-corrosion conductive line are respectively located on both sides of the first insulating layer. The first sub-line and the second sub-line in the first line to be detected are of a same layer structure, and the first sub-line in the first line to be detected is electrically connected to the first anti-corrosion conductive line through a first via hole on the first insulating layer, and the second sub-line is electrically connected to the first anti-corrosion conductive line through a second via hole on the first insulating layer.

2. The display panel according to claim 1, characterized in that, The first line to be detected is located between the first insulating layer and the substrate, and the first anti-corrosion conductive line is located on the side of the first insulating layer away from the substrate; 3. The display panel according to claim 2, characterized in that, The display panel further includes a second insulating layer, and the second insulating layer is located between the first insulating layer and the substrate; The at least one line to be detected further includes a second line to be detected, and the second line to be detected is located between the second insulating layer and the substrate; The first sub-line and the second sub-line in the second line to be detected are of a same layer structure. The first anti-corrosion conductive line is electrically connected to the first sub-line in the second line to be detected through a third via hole on the first insulating layer and the second insulating layer, and the first anti-corrosion conductive line is electrically connected to the second sub-line in the second line to be detected through a fourth via hole on the first insulating layer and the second insulating layer.

4. The display panel according to claim 2, characterized in that, The display panel further includes a second insulating layer, and the second insulating layer is located between the first insulating layer and the substrate; The circuit to be detected further includes a second circuit to be detected, which is located between the second insulating layer and the substrate. The first sub-circuit and the second sub-circuit in the second circuit to be detected are of the same layer structure. The circuit to be detected further includes a first transfer circuit, which is located between the first insulating layer and the second insulating layer. The first transfer circuit is electrically connected to the first sub-circuit in the second circuit to be detected through a fifth via on the second insulating layer, and the first transfer circuit is electrically connected to the first anti-corrosion conductive circuit through a sixth via on the first insulating layer; The circuit to be detected further includes a second transfer circuit, which is electrically connected to the second sub-circuit in the second circuit to be detected through a seventh via on the second insulating layer, and the second transfer circuit is electrically connected to the first anti-corrosion conductive circuit through an eighth via on the first insulating layer.

5. The display panel according to claim 2, characterized in that, The display panel further includes a second insulating layer, which is located between the first insulating layer and the substrate; The circuit to be detected further includes a second circuit to be detected, which is located between the second insulating layer and the substrate. The first sub-circuit and the second sub-circuit in the second circuit to be detected are of the same layer structure; The anti-corrosion conductive circuit further includes a second anti-corrosion conductive circuit, which is located on the side of the second insulating layer away from the substrate. The second anti-corrosion conductive circuit is electrically connected to the first sub-circuit in the second circuit to be detected through a ninth via on the second insulating layer, and is also electrically connected to the second sub-circuit in the second circuit to be detected through a tenth via on the second insulating layer.

6. The display panel according to claim 1, characterized in that, The first anti-corrosion conductive circuit is electrically connected to the first sub-circuit in the first circuit to be detected through at least two vias on the first insulating layer.

7. The display panel according to claim 2, characterized in that, The material of the first anti-corrosion conductive circuit includes a transparent non-metallic conductive material.

8. The display panel according to claim 7, characterized in that, The display panel includes pixel electrodes, and the first anti-corrosion conductive circuit and the pixel electrodes are of the same layer structure.

9. A display panel mother board, characterized in that, The display panel mother board includes at least one display panel and a plate to be cut located outside the display panel; The display panel includes a driving circuit, at least one circuit to be detected, and at least one anti-corrosion conductive circuit corresponding to the at least one circuit to be detected one by one; Any one of the at least one circuit to be detected includes a disconnected first sub-circuit and a second sub-circuit. The first sub-circuit is electrically connected to the anti-corrosion conductive circuit corresponding to the any one of the circuits to be detected and the driving circuit respectively, and one end of the second sub-circuit is electrically connected to the corresponding anti-corrosion conductive circuit; The display panel includes a substrate and a first insulating layer located on the substrate; The at least one line to be detected includes a first line to be detected, and the at least one anti-corrosion conductive line includes a first anti-corrosion conductive line. The first line to be detected and the first anti-corrosion conductive line are respectively located on both sides of the first insulating layer. The first sub-line and the second sub-line in the first line to be detected are of the same layer structure, and the first sub-line in the first line to be detected is electrically connected to the first anti-corrosion conductive line through a first via hole on the first insulating layer, and the second sub-line is electrically connected to the first anti-corrosion conductive line through a second via hole on the first insulating layer; The plate to be cut has a detection unit and at least one detection line electrically connected to the detection unit. The at least one detection line corresponds to the at least one line to be detected one by one, and the other end of the second sub-line is electrically connected to the detection line corresponding to any line to be detected.

10. The display panel mother board according to claim 9, characterized in that, The at least one detection line includes a first detection line, the first detection line corresponds to the first line to be detected, and the first line to be detected includes a data line; The display panel mother board further includes a switch unit. The first detection line is electrically connected to the switch unit, and the switch unit is electrically connected to the detection unit.

11. The display panel mother board according to claim 9, characterized in that, The display panel further includes a second insulating layer, and the second insulating layer is located between the first insulating layer and the substrate; The at least one line to be detected further includes a second line to be detected, and the second line to be detected is located between the second insulating layer and the substrate; The first sub-line and the second sub-line in the second line to be detected are of the same layer structure. The first anti-corrosion conductive line is electrically connected to the first sub-line in the second line to be detected through a third via hole on the first insulating layer and the second insulating layer, and the first anti-corrosion conductive line is electrically connected to the second sub-line in the second line to be detected through a fourth via hole on the first insulating layer and the second insulating layer; The at least one detection line includes a second detection line, the second detection line corresponds to the second line to be detected, and the second line to be detected includes a gate driving signal line; The second detection line is electrically connected to the detection unit.

12. The display panel mother board according to claim 10, wherein, The switch unit is located in the plate to be cut.

13. The display panel mother board according to claim 12, wherein, The display panel has a display area and a peripheral area surrounding the display area. There is a fan-out area in the peripheral area between the first side and the second side of the display area; The switch unit and the detection unit are located in the plate to be cut outside the third side of the display panel, and the third side is the side opposite to the second side; Or, the switch unit and the detection unit are located in the plate to be cut outside the second side of the display panel.

14. The display panel mother board according to claim 10, wherein, The display panel has a display area and a peripheral area surrounding the display area. There is a fan-out area in the peripheral area outside the first side of the display area, and the switch unit is located in the peripheral area outside the fourth side of the display area, and the fourth side is the side opposite to the first side.

15. The display panel mother board according to claim 14, wherein, The detection unit includes two sub-detection units, and the two sub-detection units are respectively located in the plate to be cut outside both ends of the second side.

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