Display panel, display panel motherboard, and display device

Abstract

A display panel, comprising a display area (101), and a non-display area (102) adjacent to the display area (101). The non-display area (102) comprises outer boundaries (1021) each away from one side of the display area (101). The display panel further comprises metal terminals (11) and first metal line segments (21); the metal terminals (11) are arranged in the non-display area (102); the first metal line segments (21) are arranged in the non-display area (102); and one end of each first metal line segment (21) is connected to the corresponding metal terminal (11), and the other end of the first metal line segment (21) extends to the corresponding outer boundary (1021). Each first metal line segment (21) comprises a first sub-portion (211) extending to the corresponding outer boundary (1021), and the component of the first sub-portion (211) comprises metal oxide. The first sub-portion (211) of each first metal line segment (21) connected to the corresponding outer boundary (1021) is prepared from the metal oxide, so that the cross section generated by the first metal line segment (21) after a display panel motherboard is cut is a metal oxide section, thereby reducing the conductivity of the first sub-portion (211), reducing the static electricity generated by the first sub-portion (211), reducing the probability that the wiring or apparatus in the display panel is damaged by static electricity, and improving the stability and display effect of the display panel.

Description

Display panel, display panel motherboard and display device Technical Field

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

[0002] E-paper is a paper-like electronic display that combines the characteristics of ordinary paper with those of computer screens, creating a display similar to that of ordinary paper and reducing visual fatigue during reading. Furthermore, e-paper can display even when the power is off, resulting in ultra-low energy consumption. It has been widely used in electronic labels, electronic signage, and e-readers, becoming an increasingly important type of flat-panel display.

[0003] In order to implement the lighting test of the electronic paper panel and improve the yield rate of subsequent module sections, the electronic paper is usually connected to the test terminals of each panel through wiring to implement the lighting test of each panel.

[0004] However, during the manufacturing process, the panel motherboard usually needs to be cut to obtain multiple small boards of preset sizes. Since the cutting line will pass through the wiring, the metal section of the wiring will be formed at the edge of the small board after cutting, which is prone to generate static electricity and affect the stability and display effect of the electronic paper panel. SUMMARY OF THE INVENTION

[0005] Embodiments of the present application provide a display panel, a display panel motherboard, and a display device, which can reduce static electricity generated at a first metal line segment of the display panel and improve the stability and display effect of the display panel.

[0006] An embodiment of the present application provides a display panel, comprising a display area and a non-display area adjacent to the display area, wherein the non-display area includes an outer boundary away from a side of the display area;

[0007] The display panel further includes:

[0008] A metal terminal is disposed in the non-display area;

[0009] a first metal segment disposed in the non-display area, wherein one end of the first metal segment is connected to the metal terminal, and the other end of the first metal segment extends to the outer boundary;

[0010] The first metal line segment includes a first sub-portion extending to the outer boundary, and the first sub-portion contains metal oxide.

[0011] In accordance with the above-mentioned purpose of the present application, an embodiment of the present application further provides a display panel motherboard, comprising:

[0012] at least two daughter boards, each of the daughter boards comprising metal terminals;

[0013] a plurality of metal signal lines connected to the metal terminals on the daughter board, wherein the metal signal lines include a first metal line segment connected to the metal terminals;

[0014] One end of the first metal wire segment is connected to the metal terminal, and the other end of the first metal wire segment is connected to the junction of two adjacent sub-boards. The first metal wire segment includes a first sub-portion connected to the junction of two adjacent sub-boards, and the component of the first sub-portion contains metal oxide.

[0015] According to the above-mentioned object of the present application, an embodiment of the present application further provides a display device, comprising a display panel, wherein the display panel comprises a display area and a non-display area adjacent to the display area, wherein the non-display area comprises an outer boundary away from a side of the display area;

[0016] The display panel further includes:

[0017] A metal terminal is disposed in the non-display area;

[0018] a first metal segment disposed in the non-display area, wherein one end of the first metal segment is connected to the metal terminal, and the other end of the first metal segment extends to the outer boundary;

[0019] The first metal line segment includes a first sub-portion extending to the outer boundary, and the first sub-portion contains metal oxide. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] FIG1 is a schematic diagram of a cutting structure of a display panel provided in the related art;

[0021] FIG2 is an enlarged structural diagram of point a in FIG1 provided in the related art;

[0022] FIG3 is a schematic structural diagram of a display panel provided in an embodiment of the present application;

[0023] FIG4 is an enlarged structural diagram of point A in FIG3 provided in an embodiment of the present application;

[0024] FIG5 is an enlarged structural diagram of point B in FIG3 provided in an embodiment of the present application;

[0025] FIG6 is an enlarged structural diagram of point C in FIG3 provided in an embodiment of the present application;

[0026] FIG7 is another schematic structural diagram of a display panel provided in an embodiment of the present application;

[0027] FIG8 is an enlarged structural diagram of point D in FIG7 provided in an embodiment of the present application;

[0028] FIG9 is an enlarged structural diagram of point E in FIG7 provided in an embodiment of the present application;

[0029] FIG10 is a schematic structural diagram of a display panel motherboard provided in an embodiment of the present application;

[0030] FIG11 is a schematic diagram of an enlarged structure of point F in FIG10 provided in an embodiment of the present application;

[0031] FIG12 is another enlarged structural diagram of point F in FIG10 provided in an embodiment of the present application;

[0032] FIG13 is another schematic structural diagram of a display panel provided in an embodiment of the present application;

[0033] FIG14 is another schematic structural diagram of a display panel provided in an embodiment of the present application. Modes for Carrying Out the Invention

[0034] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

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

[0036] Please refer to Figures 1 and 2. In the relevant technology, the panel motherboard 1 needs to be cut along the cutting line 3 to obtain multiple small boards 2 of preset sizes, and each small board 2 includes a test terminal 4, and a test trace 5 is provided on the panel motherboard 1. The test trace 5 is connected to the test terminal 4, and then the multiple small boards 2 on the panel motherboard 1 can be lit for testing; however, in the process of cutting the panel motherboard 1, the cutting line 3 passes through the test trace 5, and then after cutting, the test trace 5 will form a cross section at the cutting surface. Since the test trace 5 is made of metal material, generally a metal single substance material, it is easy to generate static electricity, which will cause damage to the devices and traces in the small board 2, affecting the display effect.

[0037] 3 , 4 and 5 , an embodiment of the present application provides a display panel, which includes a display area 101 and a non-display area 102 adjacent to the display area 101 , wherein the non-display area 102 includes an outer boundary 1021 away from the display area 101 .

[0038] The display panel also includes a metal terminal 11 and a first metal wire segment 21; the metal terminal 11 is arranged in the non-display area 102; the first metal wire segment 21 is arranged in the non-display area 102, one end of the first metal wire segment 21 is connected to the metal terminal 11, and the other end of the first metal wire segment 21 extends to the outer boundary 1021.

[0039] The first metal line segment 21 includes a first sub-portion 211 extending to the outer boundary 1021 , and the first sub-portion 211 contains metal oxide.

[0040] During the implementation and application process, the embodiment of the present application prepares the first sub-portion 211 connecting the first metal wire segment 21 to the outer boundary 1021 using metal oxide, thereby reducing the conductivity of the first sub-portion 211, reducing the static electricity generated by the first sub-portion 211, reducing the probability of the wiring or devices in the display panel being damaged by static electricity, and improving the stability and display effect of the display panel.

[0041] In one embodiment of the present application, the display panel further includes a first side and a second side disposed opposite to each other, the first metal segment is located on the first side, and the display panel further includes a second metal segment located on the second side, wherein the first metal segment extends to the outer boundary of the first side, and the second metal segment extends to the outer boundary of the second side;

[0042] The first metal wire segment includes a first end portion extending to the outer boundary located on the first side, and the second metal wire segment includes a second end portion extending to the outer boundary located on the second side, and the first end portion and the second end portion are aligned along the direction from the first side to the second side.

[0043] In one embodiment of the present application, the second metal wire segment includes a second sub-portion extending to the outer boundary located on the second side, and a third sub-portion connected to a side of the second sub-portion away from the outer boundary, and the second sub-portion and the first sub-portion are arranged in an aligned manner along a direction from the first side to the second side;

[0044] The material of the second sub-section is the same as that of the first sub-section, and the conductivity of the material of the first sub-section is lower than that of the material of the third sub-section.

[0045] In one embodiment of the present application, the display panel also includes a functional signal line arranged in the non-display area, and a driving circuit arranged in the display area and the non-display area, the functional signal line is electrically connected to the driving circuit, and the spacing between the second metal wire segment and the functional signal line is greater than or equal to 30 microns.

[0046] In one embodiment of the present application, the first metal wire segment further includes a fourth sub-section connected to the metal terminal, and a fifth sub-section connected between the first sub-section and the fourth sub-section, and the material of the fifth sub-section is the same as that of the third sub-section.

[0047] In one embodiment of the present application, the display panel further includes a third metal segment disposed in the non-display area and located on the second side, both ends of the third metal segment extending to the outer boundary of the second side, the third metal segment including a sixth sub-portion and a seventh sub-portion extending to the outer boundary, the sixth sub-portion being aligned with the first sub-portion along a direction from the first side to the second side, and the seventh sub-portion being staggered with the first sub-portion along the direction from the first side to the second side;

[0048] The material of the sixth sub-section is the same as that of the first sub-section, the material of the seventh sub-section is the same as that of the first sub-section, or the material of the seventh sub-section is the same as that of the third sub-section.

[0049] In one embodiment of the present application, the display panel also includes a fourth metal wire segment arranged in the non-display area and located on the first side, the fourth metal wire segment includes an eighth sub-section extending to the outer boundary located on the first side, the eighth sub-section and the seventh sub-section are aligned along the direction from the first side to the second side, and the material of the eighth sub-section is the same as the material of the first sub-section, or the material of the eighth sub-section is the same as the material of the third sub-section.

[0050] In one embodiment of the present application, the chemical stability of the material of the first sub-portion is greater than the chemical stability of the material of the third sub-portion.

[0051] In one embodiment of the present application, the material of the third sub-section includes a metal element.

[0052] In one embodiment of the present application, the metal terminal is arranged on the first side, and the display panel further includes a plurality of binding terminals arranged in the non-display area and located on the first side, and a driving chip and a flexible circuit board connected to the binding terminals.

[0053] Specifically, please continue to refer to Figures 3, 4 and 5. The display panel provided in the embodiment of the present application includes a display area 101 and a non-display area 102 adjacent to the display area 101, wherein the non-display area 102 surrounds the display area 101, and the non-display area 102 includes an outer boundary 1021 away from the side of the display area 101.

[0054] The display panel also includes a driving circuit, a display signal line, and a test trace 31 arranged in the display area 101 and the non-display area 102, such as a pixel driving circuit arranged in the display area 101 and a gate driving circuit arranged in the non-display area 102. The display panel also includes a binding terminal arranged in the non-display area 102, a driving chip 33 connected to the binding terminal, a flexible circuit board 34, and a metal terminal 11; wherein the display signal line is connected to the binding terminal and is used to connect the driving chip 33, the flexible circuit board 34 and the driving circuit to transmit the signal on the driving chip 33 to the driving circuit to realize the display function of the display panel; in addition, the test trace 31 is used to connect the metal terminal 11 to load a test signal to the metal terminal 11 during the display panel manufacturing process to perform a lighting test on the display panel.

[0055] In one embodiment, the number of metal terminals 11 can be multiple, and the signals loaded in each metal terminal 11 can include scanning signals, switching signals, common voltage signals, etc., so that during the lighting test process, the corresponding signals such as scanning signals, switching signals, and common voltage signals are transmitted to each driving circuit in the display panel through the metal terminal 11.

[0056] The display panel further includes a first metal wire segment 21 connected to the metal terminal 11 for inputting a test signal to the metal terminal 11 during the manufacturing process of the display panel. The first metal wire segment 21 is a residual wire segment of the metal signal line after cutting.

[0057] One end of the first metal wire segment 21 is connected to the metal terminal 11, and the other end of the first metal wire segment 21 extends to the outer boundary 1021; wherein, the first metal wire segment 21 includes a first sub-portion 211 extending to the outer boundary 1021, and the material of the first sub-portion 211 includes metal oxide. The embodiment of the present application uses metal oxide to prepare the portion where the first metal wire segment 21 is connected to the outer boundary 1021, and the cross-section of the first metal wire segment 21 after cutting is a metal oxide cross-section, which can reduce the conductivity of the first sub-portion 211, reduce the static electricity generated by the first sub-portion 211, reduce the probability of the wiring or devices in the display panel being damaged by static electricity, and improve the stability and display effect of the display panel.

[0058] In one embodiment of the present application, referring to Figures 3, 4, 5 and 6, the display panel includes a first side 1001 and a second side 1002 that are arranged opposite to each other, and the metal terminal 11, the driving chip 33 and the flexible circuit board 34 are all arranged on the first side 1001 of the display panel.

[0059] Among them, the non-display area 102 also includes a fan-out area 1022 located on the first side 1001 and adjacent to the display area 101, and a binding area 1023 located on the side of the fan-out area 1022 away from the display area 101. The binding terminal is arranged in the binding area 1023, and the driver chip 33 and the flexible circuit board 34 are bound and connected in the binding area 1023. The display panel also includes a fan-out line 35 connected to the driver chip 33 and extending into the fan-out area 1022, and the fan-out line 35 passes through the fan-out area 1022 and is connected to the signal line in the display area 101, such as a data line, a scan line, etc., or is connected to the signal line in the non-display area 102 on the left and right sides of the display area 101, such as a clock signal line, etc.; and the metal terminal 11 can be located in the binding area 1023 and can be arranged on the left and right sides of the driver chip 33.

[0060] In this embodiment, the first metal segment 21 is disposed on the first side 1001 and connected to the metal terminal 11 and the outer boundary 1021 located on the first side 1001. The first metal segment 21 includes a first sub-portion 211 extending to the outer boundary 1021, and the material of the first sub-portion 211 includes metal oxide.

[0061] In this embodiment, one end of the first sub-portion 211 is connected to the metal terminal 11 , and the other end of the first sub-portion 211 extends to the outer boundary 1021 of the first side 1001 .

[0062] Among them, on the first side 1001 of the display panel, the number of metal terminals 11 can be multiple, and the multiple metal terminals 11 can be symmetrically located at the opposite ends of the first side 1001. In the embodiment of the present application, the connection method of the metal terminal 11 located at one end of the first side 1001 is taken as an example for explanation.

[0063] The display panel further includes a second metal segment 22 disposed on the second side 1002, and the second metal segment 22 is connected to the outer boundary 1021 of the second side 1002. Specifically, the second metal segment 22 includes a second sub-portion 221 extending to the outer boundary 1021 of the second side 1002, and a third sub-portion 222 connected to a side of the second sub-portion 221 away from the outer boundary 1021.

[0064] The first metal wire segment 21 includes a first end extending to the outer boundary 1021 located on the first side 1001, and the second metal wire segment 22 includes a second end extending to the outer boundary 1021 located on the second side 1002. The first end and the second end are arranged in a direction from the first side 1001 to the second side 1002.

[0065] Specifically, the second sub-portion 221 and the first sub-portion 211 are aligned along the direction from the first side 1001 to the second side 1002 , and the material of the second sub-portion 221 is the same as that of the first sub-portion 211 , and the material of the third sub-portion 222 is different from that of the first sub-portion 211 .

[0066] In one embodiment, the conductivity of the material of the first sub-section 211 is lower than the conductivity of the material of the third sub-section 222, and the conductivity of the material of the second sub-section 221 is lower than the conductivity of the material of the third sub-section 222. This can reduce the static electricity generated by the first sub-section 211 and the second sub-section 221 connected to the outer boundary 1021, reduce the probability of internal components and wiring of the display panel being damaged by static electricity, and improve the yield and display effect of the display panel.

[0067] In one embodiment, the chemical stability of the material of the first sub-section 211 is greater than the chemical stability of the material of the third sub-section 222, and the chemical stability of the material of the second sub-section 221 is greater than the chemical stability of the material of the third sub-section 222, that is, the metallic inertness of the material of the first sub-section 211 and the metallic inertness of the material of the second sub-section 221 are greater than the metallic inertness of the material of the third sub-section 222. This can reduce the probability of water vapor invading the interior of the display panel from the first sub-section 211 and the second sub-section 221, and reduce the probability of water vapor invading the interior of the display panel from the first metal wire segment 21, thereby further improving the yield rate and display effect of the display panel.

[0068] The material of the first sub-section 211 and the material of the second sub-section 221 may both include metal oxides, such as indium tin oxide, indium zinc oxide, or zinc oxide; the material of the third sub-section 222 may include a single metal, such as copper.

[0069] It should be noted that the display panel includes a substrate and a gate layer, a source-drain layer and a pixel electrode layer arranged on the substrate, wherein the first sub-section 211 and the second sub-section 221 can be located in the pixel electrode layer, and the third sub-section 222 can be located in the gate layer or the source-drain layer. When the second sub-section 221 and the third sub-section 222 are located in different film layers, they can be overlapped through vias.

[0070] In addition, the metal terminal 11 may be located in the gate layer or the source / drain layer, and the first sub-portion 211 and the metal terminal 11 are located in different film layers. Therefore, the first sub-portion 211 may also be overlapped with the metal terminal 11 through a via.

[0071] In one embodiment, a signal lead 36 is spaced between the metal terminal 11 and the outer boundary 1021 located on the first side 1001, and the signal lead 36 can be arranged on the same layer as the metal terminal 11. The first sub-portion 211 needs to cross the signal lead 36 and then overlap with the metal terminal 11 through a via; wherein, the signal lead 36 may include a common voltage signal line.

[0072] Furthermore, the display panel also includes a functional signal line 32 arranged in the non-display area 102, and the functional signal line 32 is also electrically connected to the driving circuit; on the second side 1002 of the display panel, the spacing L between the second metal wire segment 22 and the functional signal line 32 is greater than or equal to 30 microns, as shown in Figure 6; because the second metal wire segment 22 has undergone the cutting process and is located in the panel wiring or other device connection, it is in a suspended state. Therefore, the second metal wire segment 22 is prone to accumulate static electricity, and then easily causes static electricity damage to the adjacent wiring. Therefore, in the embodiment of the present application, the distance between the second metal wire segment 22 and the functional signal line 32 is increased to reduce the probability of the functional signal line 32 being damaged, thereby further improving the yield and stability of the display panel.

[0073] Continuing from the above, the embodiment of the present application uses metal oxide to prepare the first sub-portion 211 connecting the first metal wire segment 21 to the outer boundary 1021, thereby reducing the conductivity of the first sub-portion 211, reducing the static electricity generated by the first sub-portion 211, and reducing the probability of the wiring or devices in the display panel being damaged by static electricity; in addition, the first sub-portion 211 is prepared using metal oxide, which can also reduce the probability of water vapor invading the interior of the display panel through the first metal wire segment 21, thereby improving the stability and display effect of the display panel.

[0074] In another embodiment of the present application, please refer to Figures 7, 8 and 9. The difference between this embodiment and the previous embodiment is that: in this embodiment, the display panel includes a first metal wire segment 21 arranged on the first side 1001, a second metal wire segment 22 and a third metal wire segment 23 arranged on the second side 1002, and a fourth metal wire segment 24 arranged on the first side 1001.

[0075] One end of the first metal wire segment 21 is connected to the metal terminal 11, and the other end of the first metal wire segment 21 extends to the outer boundary 1021 located on the first side 1001. The first metal wire segment 21 includes a first sub-portion 211 extending to the outer boundary 1021, a fourth sub-portion 212 connected to the metal terminal 11, and a fifth sub-portion 213 connected between the first sub-portion 211 and the fourth sub-portion 212.

[0076] In one embodiment, the material of the first subsection 211 is the same as the material of the fourth subsection 212, the conductivity of the material of the first subsection 211 is lower than the conductivity of the material of the fifth subsection 213, and the chemical stability of the material of the first subsection 211 is greater than the chemical stability of the material of the fifth subsection 213. Consequently, the embodiment of the present application can reduce the conductivity of the first subsection 211 extending to the outer boundary 1021, reduce the static electricity generated by the first subsection 211, reduce the probability of static damage to the wiring or devices in the display panel, and improve the stability and display quality of the display panel. Furthermore, the embodiment of the present application can also reduce the probability of water vapor invading the interior of the display panel through the first metal segment 21, further improving the yield rate and display quality of the display panel.

[0077] In one embodiment, the material of the first sub-section 211 and the material of the fourth sub-section 212 may include metal oxide, and the first sub-section 211 and the fourth sub-section 212 may be located in the pixel electrode layer, the material of the fifth sub-section 213 includes a metal element, and the fifth sub-section 213 may be located in the source / drain layer or the gate layer, and when the first sub-section 211, the fourth sub-section 212 and the fifth sub-section 213 are located in different film layers, they may be overlapped through vias.

[0078] Both ends of the second metal wire segment 22 extend to the outer boundary 1021 located on the second side 1002. The second metal wire segment 22 includes a second sub-portion 221 extending to the outer boundary 1021 and a third sub-portion 222 connected to the second sub-portion 221 on a side away from the outer boundary 1021. The second sub-portion 221 and the first sub-portion 211 are arranged in an aligned manner along the direction from the first side 1001 to the second side 1002.

[0079] In one embodiment, the material of the first subsection 211 is the same as that of the second subsection 221, and the material of the third subsection 222 can be the same as that of the fifth subsection 213. The conductivity of the material of the first subsection 211 is lower than that of the material of the third subsection 222, and the chemical stability of the material of the first subsection 211 is greater than that of the material of the third subsection 222. Consequently, the embodiment of the present application can reduce the conductivity of the first subsection 211 and the second subsection 221 extending to the outer boundary 1021, thereby reducing the static electricity generated by the first subsection 211 and the second subsection 221, reducing the probability of static damage to the wiring or devices in the display panel, and improving the stability and display quality of the display panel. Furthermore, the embodiment of the present application can also reduce the probability of water vapor invading the interior of the display panel through the first metal wire segment 21, further improving the yield rate and display quality of the display panel.

[0080] In one embodiment, the material of the first sub-section 211 and the material of the second sub-section 221 may include metal oxide, and the first sub-section 211 and the second sub-section 221 may be located in the pixel electrode layer, the material of the third sub-section 222 includes a metal element, and the third sub-section 222 may be located in the source / drain layer or the gate layer, and when the first sub-section 211, the second sub-section 221 and the third sub-section 222 are located in different film layers, they may be overlapped through vias.

[0081] Both ends of the third metal wire segment 23 extend to the outer boundary 1021 located on the second side 1002, and the third metal wire segment 23 includes a sixth sub-portion 231 and a seventh sub-portion 232 extending to the outer boundary 1021 located on the second side 1002. The sixth sub-portion 231 is arranged in alignment with the first sub-portion 211 along the direction from the first side 1001 to the second side 1002, and the seventh sub-portion 232 is arranged staggered with the first sub-portion 211 along the direction from the first side 1001 to the second side 1002.

[0082] In one embodiment, the material of the sixth sub-section 231 is the same as that of the first sub-section 211 and can be located in the pixel electrode layer; the material of the seventh sub-section 232 is the same as that of the first sub-section 211 and can be located in the pixel electrode layer, or the material of the seventh sub-section 232 is the same as that of the third sub-section 222 and can be located in the gate layer or the source and drain layer.

[0083] Both ends of the fourth metal wire segment 24 extend to the outer boundary 1021 located on the first side 1001. The fourth metal wire segment 24 includes an eighth sub-portion 241 and a ninth sub-portion 242 extending to the outer boundary 1021 located on the first side 1001. The eighth sub-portion 241 and the seventh sub-portion 232 are aligned along the direction from the first side 1001 to the second side 1002, and the ninth sub-portion 242 and the seventh sub-portion 232 are staggered along the direction from the first side 1001 to the second side 1002.

[0084] In one embodiment, the material of the eighth sub-section 241 is the same as the material of the first sub-section 211 and can be located in the pixel electrode layer, or the material of the eighth sub-section 241 is the same as the material of the third sub-section 222 and can be located in the gate layer or the source and drain layer; the material of the ninth sub-section 242 is the same as the material of the first sub-section 211 and can be located in the pixel electrode layer, or the material of the ninth sub-section 242 is the same as the material of the third sub-section 222 and can be located in the gate layer or the source and drain layer.

[0085] It should be noted that since the second metal wire segment 22, the third metal wire segment 23 and the fourth metal wire segment 24 are not directly connected to the metal terminal 11, that is, the second metal wire segment 22, the third metal wire segment 23 and the fourth metal wire segment 24 are not directly connected to the in-plane wiring, therefore, the ends of the second metal wire segment 22, the third metal wire segment 23 and the fourth metal wire segment 24 connected to the outer boundary 1021 do not need to be prepared with metal oxide, while the first metal wire segment 21 is directly connected to the metal terminal 11. Therefore, the end of the first metal wire segment 21 connected to the outer boundary 1021 needs to be prepared with metal oxide to reduce the static electricity generated by the first metal wire segment 21 and reduce the probability of water vapor invading the interior of the display panel from the first metal wire segment 21, thereby improving the stability and display effect of the display panel.

[0086] Continuing from the above, the embodiment of the present application uses metal oxide to prepare the first sub-portion 211 connecting the first metal wire segment 21 to the outer boundary 1021, thereby reducing the conductivity of the first sub-portion 211, reducing the static electricity generated by the first sub-portion 211, and reducing the probability of the wiring or devices in the display panel being damaged by static electricity; in addition, the first sub-portion 211 is prepared using metal oxide, which can also reduce the probability of water vapor invading the interior of the display panel through the first metal wire segment 21, thereby improving the stability and display effect of the display panel.

[0087] It should be noted that in the display panel provided in the embodiment of the present application, the number of the first metal wire segment 21, the second metal wire segment 22, the third metal wire segment 23 and the fourth metal wire segment 24 can be multiple, and the structure and connection method of each first metal wire segment 21, each second metal wire segment 22, each third metal wire segment 23 and each fourth metal wire segment 24 can be set with reference to the above embodiments, and will not be repeated here.

[0088] In addition, an embodiment of the present application further provides a display panel motherboard. Referring to FIG. 10 , FIG. 11 and FIG. 12 , the display panel motherboard 40 includes at least two sub-boards 41 .

[0089] It should be noted that after the display panel motherboard 40 undergoes a cutting process to separate at least two sub-boards 41 , and undergoes subsequent processes such as binding to obtain the display panel described in the above embodiment.

[0090] Among them, the daughter board 41 includes a metal terminal 11, and the display panel motherboard 40 includes multiple metal signal lines 20; the multiple metal signal lines 20 are connected to the metal terminal 11 on the daughter board 41, and the metal signal line 20 includes a first metal wire segment 21 connected to the metal terminal 11.

[0091] Furthermore, one end of the first metal wire segment 21 is connected to the metal terminal 11, and the other end of the first metal wire segment 21 is connected to the junction between two adjacent sub-plates 41. The first metal wire segment 21 includes a first sub-portion 211 connected to the junction between two adjacent sub-plates 41, and the composition of the first sub-portion 211 contains metal oxide.

[0092] It can be understood that the display panel motherboard provided in the embodiment of the present application includes a cutting line 12, which is located between two adjacent sub-boards 41, that is, the junction between the two adjacent sub-boards 41 is the cutting line 12, and one end of the first metal wire segment 21 is connected to the metal terminal 11, and the other end of the first metal wire segment 21 is connected to the junction between the two adjacent sub-boards 41.

[0093] That is, in the embodiment of the present application, the material of the first sub-portion 211 connected to the cutting line 12 in the first metal wire segment 21 connected to the metal terminal 11 in the metal signal line 20 is set to metal oxide, and then after the display panel motherboard is cut along the cutting line 12, the cross-section generated by the first metal wire segment 21 directly connected to the metal terminal 11 is a metal oxide cross-section, which can reduce the conductivity of the first sub-portion 211, reduce the static electricity generated by the first sub-portion 211, and reduce the probability of the wiring or devices in the display panel being damaged by static electricity; in addition, the first sub-portion 211 is prepared using metal oxide, which can also reduce the probability of water vapor invading the interior of the display panel through the first metal wire segment 21, thereby improving the stability and display effect of the display panel.

[0094] It should be noted that the display panel motherboard 40 may include multiple sub-boards 41 and transmission signal lines 210 and input terminals 50 arranged on the periphery of the multiple sub-boards 41; the transmission signal line 210 is connected to the input terminal 50 and is arranged around the multiple sub-boards 41, and the metal signal line 20 is located between two adjacent rows of sub-boards 41, and the two ends of the metal signal line 20 along the row direction are connected to the transmission signal line 210 to realize the transmission of the test signal from the input terminal 50 to each sub-board 41.

[0095] It should be noted that there may be multiple metal signal lines 20 to transmit various signals required for testing, such as scan signals, switch signals, and common voltage signals, to each sub-board 41 .

[0096] In one embodiment of the present application, please refer to Figures 10 and 11. Between two adjacent sub-boards 41 along the column direction, the cutting line 12 is located between the two sub-boards 41, and the part where the metal signal line 20 is directly connected to the metal terminal 11 and overlaps with the cutting line 12 is prepared using metal oxide.

[0097] Specifically, after the display panel motherboard 40 is cut along the cutting line 12, the metal signal line 20 is cut into a first metal wire segment 21 and a second metal wire segment 22. Among them, after the same metal signal line 20 is cut, the first metal wire segment 21 is located in the upper sub-board 41 in Figure 11, and the second metal wire segment 22 is located in the lower sub-board 41 in Figure 11. For the same sub-board 41, the first metal wire segment 21 is formed on the lower side of the sub-board 41, and the second metal wire segment 22 is formed on the upper side of the sub-board 41.

[0098] It is understandable that the materials and connection method of the first metal segment 21 and the second metal segment 22 in the daughter board 41 are the same as those in the embodiment shown in FIG. 3 , and are not described again here.

[0099] Among the two adjacent sub-boards 41 along the column direction, the first sub-portion 211 of the first metal wire segment 21 in the upper sub-board 41 is connected to the second sub-portion 221 of the second metal wire segment 22 in the lower sub-board 41.

[0100] In another embodiment of the present application, please refer to Figures 10 and 12. Between two adjacent sub-boards 41 along the column direction, the cutting line 12 is located between the two sub-boards 41, and the part where the metal signal line 20 is directly connected to the metal terminal 11 and overlaps with the cutting line 12 is prepared using metal oxide.

[0101] Specifically, after the display panel motherboard 40 is cut along the cutting line 12, the metal signal line 20 is cut into a first metal wire segment 21, a second metal wire segment 22, a third metal wire segment 23 and a fourth metal wire segment 24. After the same metal signal line 20 is cut, the first metal wire segment 21 and the fourth metal wire segment 24 are located in the upper sub-board 41 in Figure 11, and the second metal wire segment 22 and the third metal wire segment 23 are located in the lower sub-board 41 in Figure 11. For the same sub-board 41, the first metal wire segment 21 and the fourth metal wire segment 24 are formed on the lower side of the sub-board 41, and the second metal wire segment 22 and the third metal wire segment 23 are formed on the upper side of the sub-board 41.

[0102] It is understandable that the materials and connection methods of the first metal segment 21 , the second metal segment 22 , the third metal segment 23 and the fourth metal segment 24 in the daughter board 41 are the same as those in the embodiment shown in FIG. 7 , and are not described again here.

[0103] Among them, in the two adjacent sub-boards 41 along the column direction, the first sub-section 211 of the first metal wire segment 21 in the sub-board 41 located on the upper side is connected to the second sub-section 221 of the second metal wire segment 22 in the sub-board 41 located on the lower side, and the sixth sub-section 231 of the third metal wire segment 23, and the eighth sub-section 241 of the fourth metal wire segment 24 in the sub-board 41 located on the upper side is connected to the seventh sub-section 232 of the third metal wire segment 23 in the sub-board 41 located on the lower side.

[0104] As mentioned above, after being cut, the metal signal lines 20 are dispersed on the upper and lower sub-boards 41, so that the upper and lower sides of the display panel obtained by the sub-boards 41 are distributed with metal wire segments; however, it should be noted that, in conjunction with Figures 10, 13 and 14, in the display panel motherboard 40, the multiple sub-boards 41 include a row of edge sub-boards 411 located at the uppermost side of the display panel motherboard 40, and since the metal signal lines 20 are only located on the lower side of the edge sub-board 411, after cutting, the generated metal wire segments are also only located on the lower side of the edge sub-board 411.

[0105] In one embodiment, as shown in FIG. 13 , the display panel obtained by the edge sub-panel 411 is different from the display panel shown in FIG. 3 . The display panel shown in FIG. 13 only includes the first metal line segment 21 located on the first side 1001 .

[0106] In another embodiment, as shown in FIG14 , the display panel obtained by the edge sub-panel 411 includes only the first metal line segment 21 and the fourth metal line segment 24 located on the first side 1001 , compared with the display panel shown in FIG7 .

[0107] To sum up, in the embodiment of the present application, the part where the metal signal line 20 is directly connected to the metal terminal 11 and intersects with the cutting line 12 is prepared using metal oxide, so that the first sub-portion 211 where the first metal wire segment 21 connects to the outer boundary 1021 is prepared using metal oxide, thereby reducing the conductivity of the first sub-portion 211, reducing the static electricity generated by the first sub-portion 211, and reducing the probability of the wiring or devices in the display panel being damaged by static electricity; in addition, the first sub-portion 211 is prepared using metal oxide, which can also reduce the probability of water vapor invading the interior of the display panel from the first metal wire segment 21, thereby improving the stability and display effect of the display panel.

[0108] In addition, an embodiment of the present application further provides a display device, which includes the display panel as described in the above embodiment.

[0109] It can be understood that, since the display device includes the display panel described in the above embodiment, the display device has the same beneficial effects as the display panel, which will not be described in detail here.

[0110] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0111] The above is a detailed introduction to a display panel, a display panel motherboard and a display device provided in the embodiments of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A display panel comprising a display area and a non-display area adjacent to the display area, wherein the non-display area includes an outer boundary away from the display area; The display panel further includes: A metal terminal is disposed in the non-display area; a first metal segment disposed in the non-display area, wherein one end of the first metal segment is connected to the metal terminal, and the other end of the first metal segment extends to the outer boundary; The first metal line segment includes a first sub-portion extending to the outer boundary, and the first sub-portion contains metal oxide.

2. The display panel according to claim 1, wherein: The display panel further includes a first side and a second side opposite to each other, the first metal segment is located on the first side, and the display panel further includes a second metal segment located on the second side, wherein the first metal segment extends to the outer boundary of the first side, and the second metal segment extends to the outer boundary of the second side; The first metal wire segment includes a first end portion extending to the outer boundary located on the first side, and the second metal wire segment includes a second end portion extending to the outer boundary located on the second side, and the first end portion and the second end portion are aligned along the direction from the first side to the second side.

3. The display panel according to claim 2, wherein: The second metal wire segment includes a second sub-portion extending to the outer boundary on the second side, and a third sub-portion connected to a side of the second sub-portion away from the outer boundary, wherein the second sub-portion and the first sub-portion are aligned along a direction from the first side to the second side; The material of the second sub-section is the same as that of the first sub-section, and the conductivity of the material of the first sub-section is lower than that of the material of the third sub-section.

4. The display panel according to claim 3, wherein: The display panel also includes a functional signal line arranged in the non-display area, and a driving circuit arranged in the display area and the non-display area. The functional signal line is electrically connected to the driving circuit, and the spacing between the second metal wire segment and the functional signal line is greater than or equal to 30 microns.

5. The display panel according to claim 3, wherein: The first metal wire segment further includes a fourth sub-portion connected to the metal terminal, and a fifth sub-portion connected between the first sub-portion and the fourth sub-portion. The material of the fifth sub-portion is the same as that of the third sub-portion. The display panel according to claim 3 , wherein: The display panel further includes a third metal segment disposed in the non-display area and located on the second side, both ends of the third metal segment extending to the outer boundary of the second side, the third metal segment including a sixth sub-portion and a seventh sub-portion extending to the outer boundary, the sixth sub-portion being aligned with the first sub-portion along a direction from the first side to the second side, and the seventh sub-portion being staggered with the first sub-portion along a direction from the first side to the second side; The material of the sixth sub-section is the same as that of the first sub-section, the material of the seventh sub-section is the same as that of the first sub-section, or the material of the seventh sub-section is the same as that of the third sub-section.

7. The display panel according to claim 6, wherein: The display panel also includes a fourth metal wire segment arranged in the non-display area and located on the first side, the fourth metal wire segment includes an eighth sub-section extending to the outer boundary located on the first side, the eighth sub-section and the seventh sub-section are aligned along the direction from the first side to the second side, and the material of the eighth sub-section is the same as the material of the first sub-section, or the material of the eighth sub-section is the same as the material of the third sub-section.

8. The display panel according to claim 3, wherein: The chemical stability of the material of the first sub-portion is greater than the chemical stability of the material of the third sub-portion.

9. The display panel according to claim 8, wherein: The material of the third sub-section includes a metal element.

10. The display panel according to claim 2, wherein: The metal terminal is arranged on the first side. The display panel further includes a plurality of binding terminals arranged in the non-display area and located on the first side, and a driving chip and a flexible circuit board connected to the binding terminals.

11. A display panel motherboard, comprising: at least two daughter boards, each of the daughter boards comprising metal terminals; a plurality of metal signal lines connected to the metal terminals on the daughter board, wherein the metal signal lines include a first metal line segment connected to the metal terminals; One end of the first metal wire segment is connected to the metal terminal, and the other end of the first metal wire segment is connected to the junction of two adjacent sub-boards. The first metal wire segment includes a first sub-portion connected to the junction of two adjacent sub-boards, and the component of the first sub-portion contains metal oxide.

12. A display device, comprising a display panel, the display panel comprising a display area and a non-display area adjacent to the display area, the non-display area comprising an outer boundary away from the display area; The display panel further includes: A metal terminal is disposed in the non-display area; a first metal segment disposed in the non-display area, wherein one end of the first metal segment is connected to the metal terminal, and the other end of the first metal segment extends to the outer boundary; The first metal line segment includes a first sub-portion extending to the outer boundary, and the first sub-portion contains metal oxide.

13. The display device according to claim 12, wherein: The display panel further includes a first side and a second side opposite to each other, the first metal segment is located on the first side, and the display panel further includes a second metal segment located on the second side, wherein the first metal segment extends to the outer boundary of the first side, and the second metal segment extends to the outer boundary of the second side; The first metal wire segment includes a first end portion extending to the outer boundary located on the first side, and the second metal wire segment includes a second end portion extending to the outer boundary located on the second side, and the first end portion and the second end portion are aligned along the direction from the first side to the second side.

14. The display device according to claim 13, wherein: The second metal wire segment includes a second sub-portion extending to the outer boundary on the second side, and a third sub-portion connected to a side of the second sub-portion away from the outer boundary, wherein the second sub-portion and the first sub-portion are aligned along a direction from the first side to the second side; The material of the second sub-section is the same as that of the first sub-section, and the conductivity of the material of the first sub-section is lower than that of the material of the third sub-section.

15. The display device according to claim 14, wherein The display panel also includes a functional signal line arranged in the non-display area, and a driving circuit arranged in the display area and the non-display area. The functional signal line is electrically connected to the driving circuit, and the spacing between the second metal wire segment and the functional signal line is greater than or equal to 30 microns.

16. The display device according to claim 14, wherein: The first metal wire segment further includes a fourth sub-portion connected to the metal terminal, and a fifth sub-portion connected between the first sub-portion and the fourth sub-portion. The material of the fifth sub-portion is the same as that of the third sub-portion.

17. The display device according to claim 14, wherein: The display panel further includes a third metal segment disposed in the non-display area and located on the second side, both ends of the third metal segment extending to the outer boundary of the second side, the third metal segment including a sixth sub-portion and a seventh sub-portion extending to the outer boundary, the sixth sub-portion being aligned with the first sub-portion along a direction from the first side to the second side, and the seventh sub-portion being staggered with the first sub-portion along a direction from the first side to the second side; The material of the sixth sub-section is the same as that of the first sub-section, the material of the seventh sub-section is the same as that of the first sub-section, or the material of the seventh sub-section is the same as that of the third sub-section.

18. The display device according to claim 17, wherein: The display panel also includes a fourth metal wire segment arranged in the non-display area and located on the first side, the fourth metal wire segment includes an eighth sub-section extending to the outer boundary located on the first side, the eighth sub-section and the seventh sub-section are aligned along the direction from the first side to the second side, and the material of the eighth sub-section is the same as the material of the first sub-section, or the material of the eighth sub-section is the same as the material of the third sub-section.

19. The display device according to claim 14, wherein The chemical stability of the material of the first sub-portion is greater than the chemical stability of the material of the third sub-portion.

20. The display device according to claim 19, wherein The material of the third sub-section includes a metal element.

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