Display panel, repairing method thereof and display device

Abstract

The embodiment of the invention provides a display panel, a repairing method thereof and a display device, the display panel comprises a plurality of first signal lines, the first signal lines extend along a first direction, the plurality of first signal lines are arranged along a second direction, and the first direction intersects with the second direction; the non-display area comprises a first non-display area and a second non-display area which are located on the two opposite sides of the display area, the first signal line extends to the second non-display area from the first non-display area, and the first signal line passes through the display area; a first repairing line is arranged in the non-display area and extends to pass through the first non-display area and the second non-display area; and along a third direction, the first repair line is overlapped with the first signal line in the first non-display area and is overlapped with the first signal line in the second non-display area, and the third direction is perpendicular to the plane where the display panel is located. The first signal line with the fault can be repaired through the first repair line, and normal display of the display panel is achieved.

Description

Technical Field

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

[0002] In existing display panels, the pixel units in the display area usually need to receive display signals through various signal lines. However, during the manufacturing and transportation of the display panel, there are risks such as scratches, environmental corrosion, and electrostatic damage, which can easily lead to the problem of signal line disconnection, which causes the pixel unit to be unable to receive effective signals and display abnormalities. Therefore, a solution is urgently needed. Summary of the invention

[0003] In view of this, the embodiments of the present application provide a display panel and a repair method thereof, and a display device to solve the above problems.

[0004] In a first aspect, an embodiment of the present application provides a display panel, comprising a display area and a non-display area, wherein the non-display area surrounds at least a portion of the display area; the display panel also comprises a plurality of first signal lines, wherein the first signal line extends along a first direction, and the plurality of first signal lines are arranged along a second direction, and the first direction intersects with the second direction; the non-display area comprises a first non-display area and a second non-display area located on opposite sides of the display area, wherein the first signal line extends from the first non-display area to the second non-display area, and the first signal line passes through the display area; a first repair line is arranged in the non-display area, wherein the first repair line extends through the first non-display area and the second non-display area, and in the first non-display area and the second non-display area, the first repair line and the first signal line are located in different film layers; wherein, along a third direction, the first repair line overlaps with the first signal line in the first non-display area, and overlaps with the first signal line in the second non-display area, and the third direction is perpendicular to the plane where the display panel is located.

[0005] In an implementation of the first aspect, the non-display area includes a first binding area, the first binding area is used to bind the first circuit board, the first binding area includes a plurality of first-type binding terminals, the plurality of first-type binding terminals include a first terminal and a second terminal; the display panel also includes a first connecting wire and a second connecting wire, one end of the first connecting wire is electrically connected to the first signal line, and the other end is electrically connected to the first terminal, one end of the second connecting wire is electrically connected to the first repair line, and the other end is electrically connected to the second terminal; wherein, one of the first connecting wire and the second connecting wire includes a break.

[0006] In an implementation manner of the first aspect, the second connecting line and the first repair line are on the same layer.

[0007] In an implementation manner of the first aspect, the second terminal is located on a side of the first terminal close to an edge of the first binding region.

[0008] In an implementation manner of the first aspect, the plurality of first-type binding terminals include at least two second terminals, and the at least two second terminals are located on two opposite sides of the first terminal.

[0009] In an implementation of the first aspect, the non-display area includes a first repair area, and the first connecting line and the second connecting line both pass through the first repair area; in the first repair area, the first connecting line is disconnected or the second connecting line is disconnected.

[0010] In an implementation manner of the first aspect, in the first repair area, an extension direction of the first connecting wire and the second connecting wire is parallel to an arrangement direction of the first binding area and the display area.

[0011] In an implementation of the first aspect, the non-display area also includes a second binding area, the second binding area is used to bind the second circuit board, the second binding area includes multiple second-type binding terminals, the multiple second-type binding terminals include a third terminal and a fourth terminal; the first signal line includes a first sub-signal line and a second sub-signal line, and the non-display area also includes a third connecting line and a fourth connecting line; one end of the first connecting line is electrically connected to the first sub-signal line, and the other end is electrically connected to the first terminal, one end of the third connecting line is electrically connected to the second sub-signal line, and the other end is electrically connected to the third terminal, and one end of the fourth connecting line is electrically connected to the first repair line, and the other end is electrically connected to the fourth terminal; wherein, at least one of the second connecting line and the fourth connecting line includes a break.

[0012] In an implementation manner of the first aspect, the fourth terminal is located on a side of the third terminal close to an edge of the second binding region.

[0013] In an implementation manner of the first aspect, the plurality of second-type binding terminals include at least two fourth terminals, and the at least two fourth terminals are located on two opposite sides of the third terminal.

[0014] In an implementation manner of the first aspect, the first repair line includes a hollow area, and in the third direction, the hollow area overlaps with the first signal line.

[0015] In an implementation of the first aspect, the display panel also includes a plurality of second signal lines, the second signal lines extend along the second direction, and the plurality of second signal lines are arranged along the first direction; the non-display area includes a third non-display area and a fourth non-display area located on opposite sides of the display area, the second signal line extends from the third non-display area to the fourth non-display area, and the second signal line passes through the display area; a second repair line is provided in the non-display area, the second repair line extends through the third non-display area and the fourth non-display area, and in the third non-display area and the fourth non-display area, the second repair line and the second signal line are located in different film layers; wherein, along the third direction, the second repair line overlaps with the second signal line in the third non-display area, and overlaps with the second signal line in the fourth non-display area.

[0016] In a second aspect, an embodiment of the present application provides a method for repairing a display panel, which is used to repair the display panel provided in the first aspect; the non-display area includes a first binding area, the first binding area is used to bind a first circuit board, the first binding area includes a plurality of first-type binding terminals, and the plurality of first-type binding terminals include a first terminal and a second terminal; the display panel also includes a first connecting line and a second connecting line, one end of the first connecting line is electrically connected to the first signal line, and the other end is electrically connected to the first terminal, and one end of the second connecting line is electrically connected to the first repair line, and the other end is electrically connected to the second terminal; the second connecting line includes a break; the repair method includes:

[0017] Determine the faulty first signal line;

[0018] In the first non-display area and the second non-display area, electrically connecting the failed first signal line with the first repair line;

[0019] Disconnect the first connecting trace and repair the break in the second connecting trace.

[0020] In an implementation of the second aspect, the first repair line includes a hollow area, and in the third direction, the hollow area overlaps with the first signal line; electrically connecting the faulty first signal line with the first repair line includes:

[0021] In the hollow area, removing the insulating layer between the first repair line and the faulty first signal line;

[0022] A conductive material is disposed in the hollow area, and the first repair line is electrically connected to the faulty first signal line through the conductive material.

[0023] In a third aspect, an embodiment of the present application provides a display device, comprising a display panel provided in the first aspect.

[0024] In an embodiment of the present application, a first repair line is set to overlap with both ends of the same first signal line located in the non-display area. When a break occurs in the first signal line, resulting in an inability to transmit signals to the pixel unit, the first repair line can be electrically connected to both ends of the first signal line with a break by laser welding or other means, and the original signal is transmitted to both ends of the first signal line by the first repair line, so that the portions of the first signal line located on both sides of the break can resume signal transmission, thereby achieving signal repair.

[0025] Moreover, the first repair line is located in the non-display area, and the repair process of electrically connecting it to the first signal line will not affect the devices in the display area, which is beneficial to reducing the impact of the repair process on the display. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0027] Figure 1 A schematic plan view of a display panel provided in an embodiment of the present application;

[0028] Figure 2 A schematic plan view of another display panel provided in an embodiment of the present application;

[0029] Figure 3 A schematic plan view of another display panel provided in an embodiment of the present application;

[0030] Figure 4 A schematic plan view of another display panel provided in an embodiment of the present application;

[0031] Figure 5 A schematic plan view of another display panel provided in an embodiment of the present application;

[0032] Figure 6 for Figure 4 An enlarged schematic diagram of the first binding region in FIG.

[0033] Figure 7 for Figure 5 An enlarged schematic diagram of the first binding region in FIG.

[0034] Figure 8 A schematic plan view of another display panel provided in an embodiment of the present application;

[0035] Fig. 9 A schematic plan view of another display panel provided in an embodiment of the present application;

[0036] Fig.10 An enlarged schematic diagram of a first binding area and a second binding area provided in an embodiment of the present application;

[0037] Fig.11 A schematic plan view of another display panel provided in an embodiment of the present application;

[0038] Fig.12 A schematic plan view of another display panel provided in an embodiment of the present application;

[0039] Fig.13 A schematic plan view of another display panel provided in an embodiment of the present application;

[0040] Fig.14 A schematic plan view of another display panel provided in an embodiment of the present application;

[0041] Fig.15 for Figure 1 An enlarged schematic diagram of the middle region Q;

[0042] Fig.16 for Fig.15 A schematic cross-sectional view along the NN' tangent line;

[0043] Fig.17 A flow chart of a display panel repair method provided in an embodiment of the present application

[0044] Fig.18 A repair process flow chart of a first repair line and a first signal line provided in an embodiment of the present application;

[0045] Fig.19 A schematic diagram of a display device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0046] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0047] It should be clear that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0048] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0049] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0050] Figure 1 A schematic plan view of a display panel provided in an embodiment of the present application.

[0051] like Figure 1 As shown, the embodiment of the present application provides a display panel 01, including a display area AA and a non-display area NA, wherein the non-display area NA surrounds at least a portion of the display area AA. Figure 1 As shown, the non-display area AA surrounds the entire display area AA.

[0052] The display panel 01 includes a plurality of first signal lines 100, which are electrically connected to the pixel units PX in the display area AA and are used to provide display signals to the pixel units PX. The first signal lines 100 extend along a first direction X, and the plurality of first signal lines 100 are arranged along a second direction Y, and the first direction X intersects with the second direction Y.

[0053] Optionally, one of the first direction X and the second direction Y is a row direction of the display panel 01 , and the other is a column direction of the display panel 01 . Figure 1 It is merely illustrated that the first direction X is the row direction and the second direction Y is the column direction.

[0054] Exemplarily, the first signal line 100 may be any one of a reset voltage signal line, a light emitting control signal line, and a data voltage signal line. The display panel 01 may be any one of a liquid crystal display panel (LCD), an organic light emitting diode display panel (OLED), a sub-millimeter light emitting diode display panel (mini-LED), and a micro light emitting diode display panel (Micro-LED).

[0055] The non-display area NA includes a first non-display area NA1 and a second non-display area NA2 located on opposite sides of the display area AA, the first non-display area NA1 and the second non-display area NA2 are arranged along the first direction X, the first signal line 100 extends from the first non-display area NA1 to the second non-display area NA2, and the first signal line 100 passes through the display area AA.

[0056] The non-display area NA also includes a third non-display area NA3 and a fourth non-display area NA4 located on opposite sides of the display area AA. The third non-display area NA3 and the fourth non-display area NA4 are arranged along the second direction Y, and the first non-display area NA1 and the second non-display area NA2 can both be connected to the third non-display area NA3 and the fourth non-display area NA4.

[0057] The non-display area NA is provided with a first repair line 200, which extends through the first non-display area NA1 and the second non-display area NA2. In the first non-display area NA1 and the second non-display area NA2, the first repair line 200 and the first signal line 100 are located in different film layers.

[0058] Optional, such as Figure 1 As shown, the first repair line 200 is U-shaped, and the first repair line 200 surrounds a portion of the display area AA.

[0059] For example, Figure 1 As shown, the first repair line 200 passes through the first non-display area NA1, the third non-display area NA3 and the second non-display area NA2. Of course, the first repair line 200 may also pass through the first non-display area NA1, the fourth non-display area NA4 and the second non-display area NA2.

[0060] Optional, such as Figure 2 As shown, Figure 2 A plan schematic diagram of another display panel provided in an embodiment of the present application, wherein the first repair line 200 is in a ring shape, and the first repair line 200 extends through the first non-display area NA1, the fourth non-display area NA4, the second non-display area NA2 and the third non-display area NA3, and the first repair line 200 surrounds the entire display area AA.

[0061] The first repair line 200 overlaps the first signal line 100 in the first non-display area NA1 and overlaps the first signal line 100 in the second non-display area NA2 along a third direction, and the third direction is perpendicular to the plane where the display panel 01 is located.

[0062] That is, both ends of the same first signal line 100 in the non-display area NA overlap with the same first repair line 200 in the third direction.

[0063] After research, the inventors of the present application discovered that in the prior art, one end of the first signal line is usually set to receive signals. When a break occurs in the first signal line, the portion of the first signal line located on the side of the break away from the signal receiving end will lose the signal and will be unable to transmit signals to the pixel units to which it is electrically connected, resulting in abnormal display of those pixel units.

[0064] In view of this, the embodiment of the present application sets the first repair line 200 to overlap with the two ends of the same first signal line 100 located in the non-display area NA. Then, when a break occurs in the first signal line 100, resulting in the inability to transmit signals to the pixel unit PX, the first repair line 200 can be electrically connected to the two ends of the first signal line 100 with a break through laser welding or other methods, and the first repair line 200 is used to transmit the original signal to the two ends of the first signal line 100, so that the parts of the first signal line 100 on both sides of the break can resume signal transmission, thereby achieving signal repair.

[0065] For example, Figure 3 As shown, Figure 3 A plan schematic diagram of another display panel provided in an embodiment of the present application, wherein the first signal line 100 includes a faulty first signal line 100A with a break, and the first repair line 200 is electrically connected to an end of the faulty first signal line 100A located in the first non-display area NA1, and is electrically connected to an end of the first signal line 100A located in the second non-display area NA1, and the original signal is transmitted to both ends of the faulty first signal line 100A through the first repair line 200 to restore signal transmission.

[0066] Moreover, the first repair line 200 is located in the non-display area NA, and the repair process of electrically connecting it to the first signal line 100 will not affect the devices in the display area AA, which is beneficial to reducing the impact of the repair process on the display.

[0067] Figure 4 A schematic plan view of another display panel provided in an embodiment of the present application is shown in FIG. Figure 5 A schematic plan view of another display panel provided in an embodiment of the present application.

[0068] In one embodiment of the present application, Figure 4 and Figure 5 As shown, the non-display area NA includes a first binding area BQ1, which is used to bind a first circuit board (not shown in the figure), and the first circuit board is used to transmit display signals. The first circuit board can be a driver chip (Integrated Circuit, IC) or a flexible circuit board (Flexible Printed Circuit, FPC).

[0069] For example, Figure 4 As shown, when the first direction X is the row direction of the display panel 01 and the second direction Y is the column direction of the display panel 01, the first binding area BQ1 can be located in the third non-display area NA3. At this time, the third non-display area NA3 can be the "lower" border of the display panel 01.

[0070] For example, Figure 5As shown, when the first direction X is the column direction of the display panel 01 and the second direction Y is the row direction of the display panel 01 , the first binding area BQ1 can be located in the second non-display area NA2 . At this time, the second non-display area NA2 can be the “lower” border of the display panel 01 .

[0071] Please continue to refer to Figure 4 and Figure 5 The first binding area BQ1 includes a plurality of first-type binding terminals 300 , which are bound to the pins of the first circuit board correspondingly, and the plurality of first-type binding terminals 300 include a first terminal 31 and a second terminal 32 .

[0072] The display panel 01 further includes a first connection line ZL1 and a second connection line ZL2. One end of the first connection line ZL1 is electrically connected to the first signal line 100, and the other end is electrically connected to the first terminal 31. The first circuit board can transmit a signal to the first signal line 100 through the first connection line ZL1. One end of the second connection line ZL2 is electrically connected to the first repair line 200, and the other end is electrically connected to the second terminal 32. The first circuit board can transmit a signal to the first repair line 200 through the second connection line ZL2.

[0073] Figure 6 for Figure 4 An enlarged schematic diagram of the first binding region in Figure 7 for Figure 5 An enlarged schematic diagram of the first binding region in .

[0074] Among them, Figure 6 and Figure 7 As shown, one of the first connecting wire ZL1 and the second connecting wire ZL2 includes a break K.

[0075] In the embodiment of the present application, during the manufacturing process of the display panel 01, a break K may be preset in the second connecting line ZL. Figure 4 and Figure 6 As shown, if the first signal line 100 has no fault, there is no need to use the first repair line 200 to repair the first signal line 100. At this time, in the display panel 01, there is no break in the first connection line ZL1, and the first connection line ZL1 remains connected; the second connection line ZL2 includes a break K, and the second connection line ZL2 remains disconnected. The first circuit board transmits a signal to the first signal line 100 through the first connection line ZL1, and the first repair line 200 is floated to avoid increasing power consumption.

[0076] Combination Figure 5 and Figure 7As shown, if the first signal line 100 has a disconnection fault, the first repair line 200 is set to be electrically connected to both ends of the faulty first signal line 100A. At this time, the first connecting line ZL1 is disconnected, and the preset break in the second connecting line ZL2 is repaired, so that in the display panel 01, the first connecting line ZL1 includes a break K, the first connecting line ZL1 remains disconnected, the second connecting line ZL2 has no break K, and the second connecting line ZL2 remains connected. The first circuit board transmits the original signal of the faulty first signal line 100A to the first repair line 200 through the second connecting line ZL2, and the first repair line 200 transmits the signal to both ends of the faulty first signal line 100A to restore the normal transmission of the signal.

[0077] Optionally, the second connection line ZL2 is in the same layer as the first repair line 200. In this way, the second connection line ZL2 and the first repair line 200 do not need to be connected by punching, which is beneficial to simplifying the manufacturing process of the display panel 01 and saving costs.

[0078] Please continue to refer to Figure 6 and Figure 7 In one embodiment of the present application, the second terminal 32 is located on a side of the first terminal 31 close to an edge of the first binding region BQ1. In the arrangement direction of the first terminal 31 and the second terminal 32, the first binding region BQ1 has two opposite edges, and the second terminal 32 being located on a side of the first terminal 31 close to an edge of the first binding region BQ here means that the second terminal 32 is located between the first terminal 31 and an edge of the first binding region BQ1 that is close to the first terminal 31.

[0079] For example, Figure 6 and Figure 7 As shown, the first terminal 31 is no longer disposed on the side of the second terminal 32 facing the edge of the first binding region BQ1 .

[0080] It is understandable that, since the display panel 01 includes a plurality of first signal lines 100, a plurality of first terminals 31 are usually required to be provided in the first binding area BQ1, and the first terminals 31 are electrically connected to the first signal lines 100 through corresponding first connecting wires ZL1. The plurality of first connecting wires ZL1 are arranged in a fan-shaped manner on one side of the first binding area BQ1 toward the display area AA.

[0081] In the embodiment of the present application, the second terminal 32 is arranged to be located on a side of the first terminal 31 close to the edge of the first binding area BQ1, and the second connecting line ZL2 electrically connected to the second terminal 32 can be located on the periphery of the first connecting line ZL1, which is beneficial to reduce the mutual interference between the second connecting line ZL2 and the first connecting line ZL1, and can also reduce the number of overlaps between the second connecting line ZL2 and other lines leading out from the first binding area BQ1, thereby reducing signal interference.

[0082] Further, such as Figure 6 and Figure 7 As shown, in the first bonding area BQ1 , the plurality of first-type bonding terminals 300 include at least two second terminals 32 , and the at least two second terminals 32 are located on opposite sides of the first terminal 31 .

[0083] Exemplarily, in the arrangement direction of the first terminals 31 and the second terminals 32 , at least two second terminals 32 are located at two opposite edge sides of the first binding region BQ1 .

[0084] In this way, when the first signal line 100 fails, the first circuit board can transmit the repair signal to the first repair line 200 through at least two second terminals 32, which is conducive to improving the reliability of the repair signal transmission. Moreover, at least two second terminals 32 are located on different sides of the first terminal 31, which can reduce the probability of the second terminals 32 failing at the same time, which is conducive to further improving the reliability of the repair signal transmission.

[0085] It should be noted that Figure 6 and Figure 7 It is only illustrated that the first bonding region BQ1 includes two second terminals 32 .

[0086] In one embodiment of the present application, Figure 6 and Figure 7 As shown, the non-display area NA includes a first repair area XQ1 , and both the first connecting line ZL1 and the second connecting line ZL2 pass through the first repair area XQ1 .

[0087] For example, Figure 6 and Figure 7 As shown, the first repair area XQ1 is located between the first binding area BQ1 and the display area AA.

[0088] In the first repair area XQ1, the first connecting line ZL1 is disconnected or the second connecting line ZL2 is disconnected, that is, the break K in the first connecting line ZL1 or the break K in the second connecting line ZL2 is located in the first repair area XQ1.

[0089] During the preparation of the display panel 01, a break K can be preset in the second connection line ZL2, and the break K is located in the first repair area XQ1. When the first repair line 200 needs to be used to electrically connect to the faulty first signal line 100, the first connection line ZL1 is disconnected in the first repair area XQ1, so that the first connection line ZL1 includes the break K, and the break K in the second connection line ZL2 is repaired, so that the second connection line ZL2 is connected, and the transmission of the repair signal is realized.

[0090] Optionally, in the first repair area XQ1, the extension direction of the first connection line ZL1 and the second connection line ZL2 is parallel to the arrangement direction of the first binding area BQ1 and the display area AA. That is, in the first repair area XQ1, the first connection line ZL1 and the second connection line ZL2 can both be "vertical lines".

[0091] Based on this setting, in the first repair area XQ1, the line widths of the first connecting wire ZL1 and the second connecting wire ZL2 can be set smaller, and the distance between two adjacent connecting wires (the first connecting wire ZL1 and / or the second connecting wire ZL2) can be set larger, which is conducive to facilitating the repair operation and reducing the interference of the repair process on the adjacent wires.

[0092] Figure 8 A schematic plan view of another display panel provided in an embodiment of the present application is shown in FIG. Fig. 9 A schematic plan view of another display panel provided in an embodiment of the present application.

[0093] In one embodiment of the present application, Figure 8 and Fig. 9 As shown, the non-display area NA also includes a second binding area BQ2, which is used to bind a second circuit board (not shown in the figure), and the second circuit board can also transmit display signals. One of the first circuit board and the second circuit board can be a driver chip (Integrated Circuit, IC), and the other is a flexible circuit board (Flexible Printed Circuit, FPC).

[0094] For example, Figure 8 and Fig. 9 As shown, the second binding area BQ2 and the first binding area BQ1 are located at the same side of the display area AA, and the second binding area BQ2 is located at a side of the first binding area BQ1 away from the display area AA.

[0095] like Figure 8 As shown, when the first direction X is the row direction of the display panel 01 and the second direction Y is the column direction of the display panel 01, the first binding area BQ1 and the second binding area BQ2 can both be located in the third non-display area NA3. At this time, the third non-display area NA3 can be the "lower" border of the display panel 01.

[0096] like Fig. 9 As shown, when the first direction X is the column direction of the display panel 01 and the second direction Y is the row direction of the display panel 01, the first binding area BQ1 and the second binding area BQ2 can both be located in the second non-display area NA2. At this time, the second non-display area NA2 can be the "lower" border of the display panel 01.

[0097] The second binding area BQ2 includes a plurality of second-type binding terminals 400 , which are bound correspondingly to the pins of the second circuit board. The plurality of second-type binding terminals 400 include a third terminal 41 and a fourth terminal 42 .

[0098] The multiple first signal lines 100 include a first sub-signal line 11 and a second sub-signal line 12, and the non-display area NA also includes a third connecting line ZL3 and a fourth connecting line ZL4. One end of the first connecting line ZL1 is electrically connected to the first sub-signal line 11, and the other end is electrically connected to the first terminal 31. The first circuit board transmits signals to the first sub-signal line 11 through the first connecting line ZL1.

[0099] One end of the second connection line ZL2 is electrically connected to the first repair line 200 , and the other end is electrically connected to the second terminal 32 . The first circuit board can transmit signals to the first repair line 200 through the second connection line ZL2 .

[0100] One end of the third connection line ZL3 is electrically connected to the second sub-signal line 12 , and the other end is electrically connected to the third terminal 41 . The second circuit board transmits signals to the second sub-signal line 12 through the third connection line ZL3 .

[0101] One end of the fourth connection line ZL4 is electrically connected to the first repair line 200 , and the other end is electrically connected to the fourth terminal 42 . The second circuit board can be electrically connected to the first repair line 200 through the fourth connection line ZL4 .

[0102] Among them, Fig.10 As shown, Fig.10 An enlarged schematic diagram of a first binding area and a second binding area provided in an embodiment of the present application, wherein at least one of the second connecting line ZL2 and the fourth connecting line ZL4 includes a break K.

[0103] In the embodiment of the present application, during the preparation process of the display panel 01, a break can be preset in the second connection line ZL2 and the fourth connection line ZL4. If the first sub-signal line 11 and the second sub-signal line 12 are both fault-free, there is no need to use the first repair line 200 to repair the first sub-signal line 11 and the second sub-signal line 12. At this time, in the display panel 01, there is no break in the first connection line ZL1 and the third connection line ZL3, the first connection line ZL1 and the third connection line ZL3 remain connected, the second connection line ZL2 and the fourth connection line ZL4 both include a break K, and the second connection line ZL2 and the fourth connection line ZL4 remain disconnected. The first circuit board transmits a signal to the first sub-signal line 11 through the first connection line ZL1, the second circuit board transmits a signal to the second sub-signal line 12 through the third connection line ZL3, and the first repair line 200 floats to avoid increasing power consumption.

[0104] If the first sub-signal line 11 has a disconnection fault, the first repair line 200 is set to be electrically connected to both ends of the faulty first sub-signal line 11. At this time, the first connecting line ZL1 is disconnected, and the preset break in the second connecting line ZL2 is repaired, so that in the display panel 01, the first connecting line ZL1 includes a break, the first connecting line ZL1 remains disconnected, there is no break K in the second connecting line ZL2, and the second connecting line ZL2 remains connected. The first circuit board transmits the original signal of the faulty first sub-signal line 11 to the first repair line 200 through the second connecting line ZL2, and the first repair line 200 transmits the signal to both ends of the faulty first sub-signal line 11 to restore the normal transmission of the signal.

[0105] At this time, there is no break in the third connecting line ZL3, the third connecting line ZL3 remains connected, the fourth connecting line ZL4 includes a break K, the fourth connecting line ZL4 remains open, and the second circuit board transmits signals to the second sub-signal line 12 through the third connecting line ZL3.

[0106] If the second sub-signal line 12 has a disconnection fault, the first repair line 200 is set to be electrically connected to both ends of the faulty second sub-signal line 12. At this time, the third connection line ZL3 is disconnected, and the preset break in the fourth connection line ZL4 is repaired, so that in the display panel 01, the third connection line ZL3 includes a break K, the third connection line ZL3 remains disconnected, the fourth connection line ZL4 does not have a break K, and the fourth connection line ZL4 remains connected. The second circuit board transmits the original signal of the faulty second sub-signal line 12 to the first repair line 200 through the fourth connection line ZL4, and the first repair line 200 transmits the signal to both ends of the faulty second sub-signal line 12 to restore the normal transmission of the signal.

[0107] At this time, there is no break in the first connecting line ZL1, the first connecting line ZL1 remains connected, the second connecting line ZL2 includes a break K, the second connecting line ZL2 remains open, and the first circuit board transmits signals to the first sub-signal line 11 through the first connecting line ZL1.

[0108] It should be noted that Fig.10 Taking the fault of the second signal sub-line as an example, the situation where the second connecting line ZL2 and a third connecting line ZL3 include a break K is illustrated.

[0109] In one embodiment of the present application, Fig.10As shown, the fourth terminal 42 is located on the side of the third terminal 41 close to the edge of the second binding area BQ2. In the arrangement direction of the third terminal 41 and the fourth terminal 42, the second binding area BQ2 has two opposite edges, and the fourth terminal 42 is located on the side of the third terminal 41 close to the edge of the second binding area BQ2, which means that the fourth terminal 42 is located between the third terminal 41 and the edge of the second binding area BQ2 that is closer to the third terminal 41.

[0110] For example, Fig.10 As shown, the third terminal 41 is no longer disposed on the side of the fourth terminal 42 facing the edge of the second binding region BQ2.

[0111] In the embodiment of the present application, the fourth terminal 42 is arranged to be located on the side of the third terminal 41 close to the edge of the second binding area BQ2, and the fourth connecting line ZL4 electrically connected to the fourth terminal 42 can be located on the periphery of the third connecting line ZL3, which is beneficial to reduce the mutual interference between the fourth connecting line ZL4 and the third connecting line ZL3, and can also reduce the number of overlaps between the fourth connecting line ZL4 and other lines led out from the second binding area BQ2, thereby reducing signal interference.

[0112] Further, such as Fig.10 As shown, in the second bonding area BQ2 , the plurality of second-type bonding terminals 400 include at least two fourth terminals 42 , and the at least two fourth terminals 42 are located on two opposite sides of the third terminal 41 .

[0113] Exemplarily, in the arrangement direction of the third terminals 41 and the fourth terminals 42 , at least two fourth terminals 42 are located at two opposite edge sides of the second binding region BQ2 .

[0114] In this way, when a fault occurs in the second sub-signal line 12, the second circuit board can transmit a repair signal to the first repair line 200 through at least two fourth terminals 42, which is beneficial to improving the reliability of the transmission of the repair signal from the second circuit board line to the first repair line 200. Moreover, at least two fourth terminals 42 are located on different sides of the third terminal 41, which can reduce the probability of the fourth terminals 42 failing at the same time, which is beneficial to further improving the reliability of the transmission of the repair signal.

[0115] It should be noted that Fig.10 It is merely illustrated that the second bonding region BQ2 includes two fourth terminals 42 .

[0116] In one embodiment of the present application, Figure 8As shown, the non-display area NA also includes a second repair area XQ2, and the third connecting line ZL3 and the fourth connecting line ZL4 pass through the second repair area XQ2. The second repair area XQ2 is located on the side of the second binding area BQ2 facing the display area AA, and is close to the edge of the second binding area BQ2. Here, the edge of the second binding area BQ2 refers to the edge in the arrangement direction of the second type binding terminal 400.

[0117] In the second repair area XQ2, the third connecting wiring ZL3 is disconnected or the fourth connecting wiring ZL4 is disconnected.

[0118] During the preparation of the display panel 01, a break K can be preset in the fourth connection line ZL4, and the break K is located in the second repair area XQ2. When the first repair line 200 needs to be used to electrically connect to the faulty second sub-signal line 12, in the second repair area XQ2, the third connection line ZL3 is disconnected, so that the third connection line ZL1 includes the break K, and the break K in the fourth connection line ZL4 is repaired, so that the fourth connection line ZL4 is connected, and the transmission of the repair signal is realized.

[0119] Optionally, in the second repair area XQ2, the extension direction of the third connection line ZL3 and the fourth connection line ZL4 is parallel to the arrangement direction of the second binding area BQ2 and the display area AA. That is, in the second repair area XQ2, the third connection line ZL3 and the fourth connection line ZL4 can both be "vertical lines".

[0120] Fig.11 A schematic plan view of another display panel provided in an embodiment of the present application is shown in FIG. Fig.12 A schematic plan view of another display panel provided in an embodiment of the present application.

[0121] In one embodiment of the present application, Fig.11 and Fig.12 As shown, the plurality of first signal lines 100 include a fault signal line 101 and a fault signal line 102, and the fault signal line 101 and the fault signal line 102 may both be first signal lines with a disconnection fault. The fault signal line 101 and the fault signal line 102 are electrically connected to the same first connecting line ZL1. That is, the fault signal line 101 and the fault signal line 102 are originally used to transmit the same signal.

[0122] Among them, the fault signal line 101 is located at both ends of the first non-display area NA1 and the second non-display area NA2 and is electrically connected to the first repair line 200, and the fault signal line 102 is located at both ends of the first non-display area NA1 and the second non-display area NA2 and is electrically connected to the first repair line 200.

[0123] At the same time, the first connection line ZL1 electrically connected to the fault signal line 101 and the fault signal line 102 may include a break, and the first connection line ZL1 remains open; the second connection line ZL2 electrically connected to the first repair line 200 has no break, and the second connection line ZL2 remains open. The first circuit board can transmit the signal of the original faulty first signal line 101 to the first repair line 200 through the second connection line ZL2, thereby simultaneously repairing the faulty signal line 101 and the faulty signal line 102.

[0124] exist Fig.11 In the embodiment, the first direction X may be a row direction of the display panel 01 , the second direction Y may be a column direction of the display panel 01 , and the first circuit board bounded by the first binding area BQ1 may be a flexible circuit board.

[0125] exist Fig.12 In the embodiment, the first direction X may be a column direction of the display panel 01 , the second direction Y may be a row direction of the display panel 01 , and the first circuit board bounded by the first binding area BQ1 may be a driving chip.

[0126] Fig.13 A schematic plan view of another display panel provided in an embodiment of the present application.

[0127] In one embodiment of the present application, Fig.13 As shown, the plurality of first signal lines 100 include a fault signal line 103 and a fault signal line 104, and the fault signal line 103 and the fault signal line 104 may both be first signal lines with a disconnection fault. The fault signal line 103 and the fault signal line 104 are electrically connected to different first connection lines ZL1, respectively, that is, the fault signal line 103 and the fault signal line 104 are originally used to transmit different signals.

[0128] exist Fig.13 In the figure, the first direction X is the column direction of the display panel 01, the second direction Y is the row direction of the display panel 01, and the first signal line 100 may be a data voltage signal line.

[0129] The same first repair line 200 includes a first section 21 and a second section 22, and a first break K1 and a second break K2 are included between the first section 21 and the second section 22. The first break K1 is located in the first non-display area NA1 and between the fault signal line 103 and the fault signal line 104; the second break K2 is located in the second non-display area NA2 and between the fault signal line 103 and the fault signal line 104.

[0130] In the first non-display area NA1 and the second non-display area NA2, the first segment 21 is electrically connected to both ends of the fault signal line 103, and the second segment 22 is electrically connected to both ends of the fault signal line 104. The first segment 21 and the second segment 22 are electrically connected to different second connection lines ZL2, respectively.

[0131] At the same time, the first connection lines ZL1 electrically connected to the fault signal lines 103 and 104 may include a break, and the first connection lines ZL1 remain disconnected; the second connection lines ZL2 electrically connected to the first section 21 and the second section 22 have no break, and the second connection lines ZL2 remain connected. The first circuit board can transmit the original signal of the fault signal line 103 to the first section 21 to repair the signal of the fault signal line 103. And transmit the original signal of the fault signal line 104 to the second section 22 to repair the signal of the fault signal line 104.

[0132] Fig.14 A schematic plan view of another display panel provided in an embodiment of the present application.

[0133] In one embodiment of the present application, Fig.14 As shown, the display panel 01 further includes a plurality of second signal lines 500, which are electrically connected to the pixel units PX in the display area AA. The second signal lines 500 extend along the second direction Y, and the plurality of second signal lines 500 are arranged along the first direction X, and the second signal lines 500 intersect with the first signal lines 100.

[0134] Exemplarily, in the display panel 01, when the first signal line 100 is a signal line extending in the row direction, the second signal line 500 is a signal line extending in the column direction. When the first signal line 100 is a signal line extending in the column direction, the second signal line 500 is a signal line extending in the row direction.

[0135] The non-display area NA includes a third non-display area NA3 and a fourth non-display area NA4 located at opposite sides of the display area AA. The second signal line 500 extends from the third non-display area NA3 to the fourth non-display area NA4, and the second signal line 500 extends through the display area AA.

[0136] The non-display area NA is provided with a second repair line 600, which extends through the third non-display area NA3 and the fourth non-display area NA4. In the third non-display area NA3 and the fourth non-display area NA4, the second repair line 600 and the second signal line 500 are located in different film layers.

[0137] Optionally, the second repair line 600 is in a ring shape, and the second repair line 600 extends through the third non-display area NA3, the second non-display area NA2, the fourth non-display area NA4 and the first non-display area NA1, and the second repair line 600 surrounds the entire display area AA.

[0138] Here, along the third direction, the second repair line 600 overlaps the second signal line 500 in the third non-display area NA3 , and overlaps the second signal line 500 in the fourth non-display area NA4 .

[0139] In an embodiment of the present application, when a break occurs in the second signal line 500, resulting in an inability to transmit signals to the pixel unit PX, the second repair line 600 can be electrically connected to the two ends of the second signal line 500 where the break occurs by laser welding or other means, and the second repair line 600 can be used to transmit the original signal to the two ends of the second signal line 200, so that the portions of the second signal line 200 on both sides of the break can resume signal transmission, thereby achieving signal repair.

[0140] Moreover, the second repair line 600 is located in the non-display area NA, and the repair process of electrically connecting it to the second signal line 200 will not affect the devices in the display area AA, which is beneficial to reducing the impact of the repair process on the display.

[0141] In addition, the embodiment of the present application can implement both signal repair for the first signal line 100 and signal repair for the second signal line 500, which is beneficial to improving the ability to repair different types of signal lines.

[0142] It should be noted that the second signal line 500 can be connected to the same type of binding terminals as the first signal line 100, the second repair line 600 can be connected to the same type of binding terminals as the first repair line 200, and the process of repairing the second signal line 500 by the second repair line 600 can be the same as the process of repairing the first signal line 100 by the first repair line 200, which will not be repeated here.

[0143] Fig.15 for Figure 1 An enlarged schematic diagram of the middle region Q, Fig.16 for Fig.15 A schematic cross-sectional view along the NN' tangent line.

[0144] In one embodiment of the present application, Fig.15 and Fig.16 As shown, the first repair line 200 includes a hollow area PO. In the third direction Z, the hollow area PO overlaps with the first signal line 100 , and an insulating layer PC is included between the first repair line 200 and the first signal line 100 .

[0145] In an embodiment of the present application, if a fault occurs in the first signal line 100, the insulating layer PC between the first repair line 200 and the faulty first signal line 100 can be removed at the hollow area PO, and then filled with conductive material, and the first repair line 200 and the faulty first signal line 100 are electrically connected through the conductive material.

[0146] It should be noted that Fig.15 and Fig.16 It only illustrates the situation that the first repair line 200 is electrically insulated from the first signal line 100. After the first repair line 200 is used to repair the faulty first signal line 100, the hollow area PO in the first repair line 200 overlapping with the faulty first signal line 100 may be filled with a conductive material.

[0147] Fig.17 A flow chart of a display panel repair method provided in an embodiment of the present application.

[0148] The present application also provides a display panel repair method for repairing the display panel 01 provided in the above embodiment. The structure of the display panel 01 can be as follows: Figure 1-Figure 16 shown.

[0149] Combination Figure 4 and Figure 6 As shown, the non-display area NA includes a first binding area BQ1, and the first binding area BQ1 is used to bind a first circuit board (not shown in the figure), and the first circuit board is used to transmit display signals.

[0150] The first binding area BQ1 includes a plurality of first-type binding terminals 300 , which are bound to the pins of the first circuit board. The plurality of first-type binding terminals 300 include first terminals 31 and second terminals 32 .

[0151] The display panel 01 further includes a first connection line ZL1 and a second connection line ZL2. One end of the first connection line ZL1 is electrically connected to the first signal line 100, and the other end is electrically connected to the first terminal 31. The first circuit board can transmit a signal to the first signal line 100 through the first connection line ZL1. One end of the second connection line ZL2 is electrically connected to the first repair line 200, and the other end is electrically connected to the second terminal 32. The second connection line ZL2 includes a break K.

[0152] like Fig.17 As shown, the repair methods include:

[0153] Step S1: Determine the faulty first signal line 100A. The faulty first signal line can be checked and determined by an optical microscope and marked.

[0154] Step S2 : electrically connecting the failed first signal line 100A to the first repair line 200 in the first non-display area NA1 and the second non-display area NA2 .

[0155] Exemplarily, the first repair line 200 may be electrically connected to both ends of the faulty first signal line 100A by laser welding.

[0156] For example, Fig.16 As shown, the first repair line 200 includes a hollow area PO, and in the third direction Z, the hollow area PO overlaps with the first signal line 100. Fig.18 As shown, Fig.18 A repair process flow chart of a first repair line and a first signal line provided in an embodiment of the present application, electrically connecting a faulty first signal line 100A with a first repair line 200, includes:

[0157] Step S21: in the hollow area PO, removing the insulating layer PC between the first repair line 200 and the faulty first signal line 100A.

[0158] Step S22: a conductive material DG is disposed in the hollow area PO, and the first repair line 200 is electrically connected to the faulty first signal line 100A through the conductive material DG. The conductive material DG can fill the hollow area PO in the first repair line 200.

[0159] Step S3: disconnect the first connection line ZL1 electrically connected to the faulty first signal line 100A, and repair the break K in the second connection line ZL2, so that the second connection line ZL2 remains connected.

[0160] In the method provided in the embodiment of the present application, the first circuit board can transmit the original signal of the faulty first signal line 100A to the first repair line 200 through the second connecting line ZL2, and the first repair line 200 transmits the signal to both ends of the faulty first signal line 100A to restore normal signal transmission.

[0161] It should be noted that after the signal repair is completed, the signal in the display panel 01 needs to be tested to ensure the repair effect.

[0162] Fig.19 A schematic diagram of a display device provided in an embodiment of the present application.

[0163] The present application embodiment provides a display device 02, such as Fig.19 As shown, the display device 02 includes the display panel 01 provided in the above embodiment. Exemplarily, the display device 02 is an electronic device such as a computer, a television, a mobile phone, a car display, a wearable display, etc., which is not specifically limited in this application.

[0164] In the display device 02, a first repair line 200 is set to overlap with the two ends of the same first signal line 100 located in the non-display area NA. When a break occurs in the first signal line 100, resulting in an inability to transmit signals to the pixel unit PX, the first repair line 200 can be electrically connected to the two ends of the first signal line 100 with a break by laser welding or the like, and the first repair line 200 is used to transmit the original signal to the two ends of the first signal line 100, so that the parts of the first signal line 100 located on both sides of the break can resume signal transmission, thereby achieving signal repair.

[0165] Moreover, the first repair line 200 is located in the non-display area NA, and the repair process of electrically connecting it to the first signal line 100 will not affect the devices in the display area AA, which is beneficial to reducing the impact of the repair process on the display.

[0166] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A display panel, characterized in that: The display panel includes a display area and a non-display area, wherein the non-display area surrounds at least a portion of the display area; the display panel further includes a plurality of first signal lines, wherein the first signal lines extend along a first direction, and the plurality of first signal lines are arranged along a second direction, wherein the first direction intersects with the second direction; The non-display area includes a first non-display area and a second non-display area located at opposite sides of the display area, the first signal line extends from the first non-display area to the second non-display area, and the first signal line passes through the display area; A first repair line is disposed in the non-display area, the first repair line extends through the first non-display area and the second non-display area, and in the first non-display area and the second non-display area, the first repair line and the first signal line are located in different film layers; Wherein, along a third direction, the first repair line overlaps with the first signal line in the first non-display area, and overlaps with the first signal line in the second non-display area, and the third direction is perpendicular to the plane where the display panel is located.

2. The display panel according to claim 1, characterized in that: The non-display area includes a first binding area, the first binding area is used to bind the first circuit board, the first binding area includes a plurality of first-type binding terminals, and the plurality of first-type binding terminals include a first terminal and a second terminal; The display panel further includes a first connecting wire and a second connecting wire, wherein one end of the first connecting wire is electrically connected to the first signal wire and the other end is electrically connected to the first terminal, and one end of the second connecting wire is electrically connected to the first repair wire and the other end is electrically connected to the second terminal; One of the first connecting line and the second connecting line includes a break.

3. The display panel according to claim 2, characterized in that: The second connecting line is on the same layer as the first repair line.

4. The display panel according to claim 2, characterized in that: The second terminal is located on a side of the first terminal close to an edge of the first binding region.

5. The display panel according to claim 2, characterized in that: The plurality of first-type binding terminals include at least two second terminals, and the at least two second terminals are located on two opposite sides of the first terminal.

6. The display panel according to claim 2, characterized in that: The non-display area includes a first repair area, and the first connecting wire and the second connecting wire both pass through the first repair area; In the first repair area, the first connecting line is disconnected or the second connecting line is disconnected.

7. The display panel according to claim 6, characterized in that: In the first repair area, an extension direction of the first connection line and the second connection line is parallel to an arrangement direction of the first binding area and the display area.

8. The display panel according to claim 2, characterized in that: The non-display area further includes a second binding area, the second binding area is used to bind the second circuit board, the second binding area includes a plurality of second-type binding terminals, and the plurality of second-type binding terminals include a third terminal and a fourth terminal; The first signal line includes a first sub-signal line and a second sub-signal line, and the non-display area further includes a third connection line and a fourth connection line; one end of the first connection line is electrically connected to the first sub-signal line, and the other end is electrically connected to the first terminal, one end of the third connection line is electrically connected to the second sub-signal line, and the other end is electrically connected to the third terminal, and one end of the fourth connection line is electrically connected to the first repair line, and the other end is electrically connected to the fourth terminal; Wherein, at least one of the second connecting line and the fourth connecting line includes a break.

9. The display panel according to claim 8, characterized in that: The fourth terminal is located on a side of the third terminal close to an edge of the second binding region.

10. The display panel according to claim 8, characterized in that: The plurality of second-type binding terminals include at least two fourth terminals, and the at least two fourth terminals are located on two opposite sides of the third terminal.

11. The display panel according to claim 1, characterized in that: The first repair line includes a hollow area, and in the third direction, the hollow area overlaps with the first signal line.

12. The display panel according to claim 1, characterized in that: The display panel further includes a plurality of second signal lines, the second signal lines extend along the second direction, and the plurality of second signal lines are arranged along the first direction; The non-display area includes a third non-display area and a fourth non-display area located at two opposite sides of the display area, the second signal line extends from the third non-display area to the fourth non-display area, and the second signal line passes through the display area; A second repair line is disposed in the non-display area, the second repair line extends through the third non-display area and the fourth non-display area, and in the third non-display area and the fourth non-display area, the second repair line and the second signal line are located in different film layers; Wherein, along the third direction, the second repair line overlaps with the second signal line in the third non-display area, and overlaps with the second signal line in the fourth non-display area.

13. A method for repairing a display panel, characterized in that: Used to repair the display panel according to any one of claims 1 to 12; the non-display area includes a first binding area, the first binding area is used to bind a first circuit board, the first binding area includes a plurality of first-type binding terminals, and the plurality of first-type binding terminals include a first terminal and a second terminal; The display panel further includes a first connecting wire and a second connecting wire, wherein one end of the first connecting wire is electrically connected to the first signal wire and the other end is electrically connected to the first terminal, and one end of the second connecting wire is electrically connected to the first repair wire and the other end is electrically connected to the second terminal; The second connection line includes a break; and the repair method includes: Determine the faulty first signal line; In the first non-display area and the second non-display area, electrically connecting the faulty first signal line with the first repair line; The first connecting line is disconnected, and the break in the second connecting line is repaired.

14. The method according to claim 13, characterized in that The first repair line includes a hollow area, and in the third direction, the hollow area overlaps with the first signal line; The step of electrically connecting the faulty first signal line to the first repair line comprises: In the hollow area, removing the film layer between the first repair line and the faulty first signal line; A conductive material is disposed in the hollow area, and the first repair line is electrically connected to the faulty first signal line through the conductive material.

15. A display device, characterized in that: Comprising a display panel as described in any one of claims 1-12.

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