Display panel, repairing method thereof and display device

Abstract

The invention provides a display panel, a repairing method thereof and a display device. The display panel comprises a substrate, a first metal layer, a second metal layer, a first insulating layer and a second insulating layer, the first metal layer comprises a first metal wire extending along a first direction; the first metal wire comprises a first wire branch part and a second wire branch part, and a gap is formed between the first wire branch part and the second wire branch part; the gap is located in the repairing area; the second metal layer covers at least part of the first wiring subsection and at least part of the second wiring subsection, and the second metal layer fills the gap; the first insulating layer covers the second metal layer; the second insulating layer covers the first insulating layer and the first metal layer. According to the technical scheme provided by the invention, the second metal layer is used for filling the gap in the repair area and covering part of the first wiring subsection and the second wiring subsection, and the first insulating layer is additionally arranged, so that the structural stability of the second metal layer can be ensured, and meanwhile, the repair effect on the first metal wiring is ensured.

Description

Technical Field

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

[0002] With the continuous development of display technology, display panels have been widely used in people's production and life. There may be abnormal wiring in the display panel, and when there are defects in the wiring, the display panel will have display defects, affecting the display effect. Summary of the invention

[0003] An embodiment of the present invention provides a display panel and a repair method thereof, and a display device. The display panel repairs the metal wiring in the repair area by adding a second metal layer, and adds a first insulating layer to cover the second metal layer, thereby improving the repair effect of the first metal wiring and ensuring the overall structural stability of the display panel.

[0004] In a first aspect, an embodiment of the present invention provides a display panel, including a repair area;

[0005] The display panel further includes:

[0006] substrate;

[0007] A first metal layer, the first metal layer is located at one side of the substrate; the first metal layer includes a first metal routing extending along a first direction; the first metal routing includes a first routing section and a second routing section, and along the first direction, a gap is included between the first routing section and the second routing section; the gap is located in the repair area;

[0008] a second metal layer, the second metal layer being located on a side of the first metal layer away from the substrate, the second metal layer covering at least a portion of the first routing section and at least a portion of the second routing section, and the second metal layer filling the gap;

[0009] a first insulating layer, the first insulating layer being located on a side of the second metal layer away from the substrate, and the first insulating layer covering the second metal layer;

[0010] a second insulating layer, the second insulating layer being located on a side of the first insulating layer away from the substrate, and covering the first insulating layer and the first metal layer;

[0011] Wherein, the first direction is parallel to the plane where the substrate is located.

[0012] Optionally, the second metal layer includes a first metal section and a second metal section, the first metal section and the second metal section are electrically connected; the first metal section is located on a side of the first metal layer away from the substrate, and the second metal section is located on a side of the substrate;

[0013] The distance between the side of the first metal section away from the substrate and the substrate is a first distance L1; the distance between the side of the second metal section away from the substrate and the substrate is a second distance L2;

[0014] Among them, |L1-L2| / L2≤20%.

[0015] Optionally, a distance between a side of the first metal layer away from the substrate and the substrate is a third distance L3;

[0016] Among them, 6000 microns ≤ L1 ≤ 7000 microns; 6000 microns ≤ L2 ≤ 7000 microns; 4500 microns ≤ L3 ≤ 5500 microns.

[0017] Optionally, a distance between a side of the first insulating layer away from the substrate and the first metal layer is a fourth distance L4; a distance between a side of the second insulating layer away from the substrate and the first metal layer is a fifth distance L5;

[0018] Among them, 1000 microns ≤ L4 ≤ 2000 microns; 2500 microns ≤ L5 ≤ 3500 microns.

[0019] Optionally, the material of the first metal layer is the same as the material of the second metal layer.

[0020] In a second aspect, an embodiment of the present invention provides a method for repairing a display panel, which is used to form the display panel according to any one of the first aspects, and the repair method includes:

[0021] Preparing a second metal layer in the repair area of ​​the display panel to electrically connect the first wiring division and the second wiring division;

[0022] Prepare a first insulating layer in the repair area of ​​the display panel, wherein the first insulating layer covers the second metal layer;

[0023] A second insulating layer is prepared on the entire area of ​​the display panel, the second insulating layer is located on a side of the first insulating layer away from the substrate, and the second insulating layer covers the second metal layer and the first metal layer.

[0024] Optionally, before preparing the second insulating layer, the method further includes:

[0025] Cleaning the repair area of ​​the display panel.

[0026] Optionally, before preparing the second metal layer, the process further includes:

[0027] The first metal wiring in the repair area is etched by laser to reduce the step between the first wiring section and the second wiring section at the gap.

[0028] Optionally, preparing the second metal layer includes:

[0029] Position the working window of the film deposition device to the repair area;

[0030] adjusting the working window of the film deposition device to a first width;

[0031] Depositing the second metal layer on the side of the first metal layer away from the substrate using the film deposition device;

[0032] Preparing the first insulating layer includes:

[0033] Adjusting the working window of the film deposition device to a second width; wherein the first width is smaller than the second width;

[0034] The first insulating layer is deposited on a side of the second metal layer away from the substrate by using the film deposition device.

[0035] In a third aspect, an embodiment of the present invention provides a display device, comprising the display panel described in any one of the first aspects.

[0036] An embodiment of the present invention provides a display panel, which includes a substrate and a first metal layer, the first metal layer includes a first metal routing extending along a first direction, the first metal routing includes a first routing section and a second routing section, and the first routing section and the second routing section include a gap, that is, the first metal routing is disconnected at the gap, and the gap is located in a repair area of ​​the display panel; the display panel also includes a second metal layer, the second metal layer covers at least a portion of the first routing section and at least a portion of the second routing section, and the second metal layer fills the gap, that is, the second metal layer short-circuits the first metal routing disconnected at the gap, thereby repairing the first metal routing; the display panel also includes a first insulating layer and a second insulating layer, the first insulating layer covers the second metal layer, and can protect the second metal layer to prevent the second metal layer from falling off when the display panel is cleaned, so that the first insulating layer can protect the structural stability of the second metal layer, thereby ensuring the repair effect of the first metal routing and ensuring the overall structural stability of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0038] Figure 1 is a schematic structural diagram of a display panel provided by an embodiment of the present invention;

[0039] Figure 2 yes Figure 1 A cross-sectional view along the section line A-A';

[0040] Figure 3 is a schematic structural diagram of another display panel provided by an embodiment of the present invention;

[0041] Figure 4 yes Figure 1 A cross-sectional view along the section line BB';

[0042] Figure 5 is a flow chart of a display panel repair method provided by an embodiment of the present invention;

[0043] Figure 6 is a flow chart of another display panel repair method provided by an embodiment of the present invention;

[0044] Figure 7 It is a structural schematic diagram of a display device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0045] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0046] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a system, product or device comprising a series of units is not necessarily limited to those steps or units clearly listed, but may include other units that are not clearly listed or inherent to these products or devices.

[0047] Figure 1 is a schematic structural diagram of a display panel provided by an embodiment of the present invention, Figure 2 yes Figure 1 A cross-sectional view along the section line A-A', Figure 3 is a schematic diagram of the structure of another display panel provided by an embodiment of the present invention, Figure 4 yes Figure 1 A cross-sectional view along the section line B-B', refer to Figures 1 to 4 As shown, an embodiment of the present invention provides a display panel 10, which includes a repair area 101; the display panel 10 also includes: a substrate 100; a first metal layer 200, the first metal layer 200 is located on one side of the substrate 100; the first metal layer 200 includes a first metal wiring 210 extending along a first direction X; the first metal wiring 210 includes a first wiring division 211 and a second wiring division 212, along the first direction X, there is a gap S0 between the first wiring division 211 and the second wiring division 212; the gap S0 is located in the repair area 101; a second metal layer 300, the second metal layer 300 is located in the first metal layer 2 00 is located on a side of the second metal layer 300 away from the substrate 100, the second metal layer 300 covers at least a portion of the first routing portion 211 and at least a portion of the second routing portion 212, and the second metal layer 300 fills the gap S0; a first insulating layer 400, the first insulating layer 400 is located on a side of the second metal layer 300 away from the substrate 100, and the first insulating layer 400 covers the second metal layer 300; a second insulating layer 500, the second insulating layer 500 is located on a side of the first insulating layer 400 away from the substrate 100, and the second insulating layer 500 covers the first insulating layer 400 and the first metal layer 200; wherein the first direction X is parallel to the plane where the substrate 100 is located.

[0048] Specifically, the display panel 10 includes a substrate 100, which may be a rigid substrate, such as a glass substrate. The materials of the substrate 100 in different display panels 10 are different, and the embodiment of the present invention does not specifically limit the type of the substrate 100. Figure 1 and Figure 2 As shown, the display panel 10 further includes a first metal layer 200, which is located on one side of the substrate 100. Metal traces can be prepared by patterning the first metal layer 200. The metal traces in the display panel 10 can carry different electrical signals, thereby realizing various functions of the display panel 10, such as display function.

[0049] For further reference, Figure 1 and Figure 2 As shown, the first metal layer 200 includes a first metal wiring 210 extending along a first direction X, and the first metal wiring 210 includes a first wiring division 211 and a second wiring division 212, and there is a gap S0 between the first wiring division 211 and the second wiring division 212 along the first direction X. It can be understood that the first metal wiring 210 is disconnected, and there is a gap S0 at the disconnection, and the first wiring division 211 and the second wiring division 212 are on both sides of the gap S0. If the first metal wiring 210 is disconnected, the signal transmitted on the first metal wiring 210 cannot be transmitted normally, so it is necessary to repair the first metal wiring 210 to ensure the normal operation of the display panel 10. Further, the gap S0 is repaired to ensure that the first wiring division 211 and the second wiring division 212 can be short-circuited, thereby ensuring the normal transmission of the signal in the first metal wiring 210. Therefore, the area where the gap S0 is located is repaired, and this area can be understood as the repair area 101 of the display panel 10.

[0050] For further reference, Figure 1 and Figure 2 As shown, the display panel 10 also includes a second metal layer 300, which is located on a side of the first metal layer 200 away from the substrate 100, and the second metal layer 300 covers at least a portion of the first routing section 211 and at least a portion of the second routing section 212. At the same time, the second metal layer 300 also fills the space at the gap S0, so that the disconnected first routing section 211 can be electrically connected to the second routing section 212 through the second metal layer 300, that is, the second metal layer 300 can be understood as a metal film layer for repairing the first metal routing 210.

[0051] For further reference, Figure 1 and Figure 2As shown, the display panel 10 further includes a first insulating layer 400, and the first insulating layer 400 is used to cover the second metal layer 300, so as to protect the second metal layer 300. Specifically, after the display panel 10 repairs the broken metal wiring, there is generally a process of flushing the panel, but this process will affect the repaired metal (the repaired metal is deposited later, and the repaired metal will fall off in some areas during the flushing and cleaning process of the display panel, so there may be repair failures, etc.), that is, it will affect the second metal layer 300. After the second metal layer 300 is deposited, the display panel 10 provided by the embodiment of the present invention deposits the first insulating layer 400 on the side of the second metal layer 300 away from the substrate 100. The first insulating layer 400 can protect the second metal layer 300 to prevent the second metal layer 300 from partially falling off during the cleaning and flushing process of the display panel 10, that is, the preparation of the first insulating layer 400 can improve the repair effect of the wiring in the display panel 10 and ensure the stability of the structure of the display panel 10.

[0052] For further reference, Figure 3 and Figure 4 As shown, the display panel 10 also includes a second insulating layer 500, and the second insulating layer 500 covers the first insulating layer 400 and the first metal layer 200, that is, the second insulating layer 500 is prepared for the entire surface, and covers both the first metal layer 200 and the first insulating layer 400. Specifically, the number of metal film layers in the display panel 10 is diverse, and the first metal layer 200 is covered by the second insulating layer 500, so as to avoid short circuit between the first metal layer 200 and other metal film layers prepared subsequently, that is, to ensure that there is no signal interference and influence between the metal film layer prepared subsequently and the first metal layer 200, thereby ensuring the stability and reliability of the overall signal transmission of the display panel 10. Furthermore, the second insulating layer 500 also covers the first insulating layer 400, and the second insulating layer 500 can play a flattening role, ensuring that the display panel 10 has flatness in the repair area 101 and the film layer around the repair area 101, and ensuring the overall flatness of the display panel 10.

[0053] In summary, in the display panel provided by the embodiment of the present invention, the second metal layer in the display panel covers at least a portion of the first routing portion and at least a portion of the second routing portion, and the second metal layer fills the gap, that is, the second metal layer short-circuits the first metal routing that is disconnected at the gap, thereby realizing the repair of the first metal routing; the display panel also includes a first insulating layer and a second insulating layer, the first insulating layer covers the second metal layer, and can protect the second metal layer to prevent the second metal layer from falling off when the display panel is cleaned, so that the first insulating layer can include the structural stability of the second metal layer, thereby ensuring the repair effect of the first metal routing and ensuring the overall structural stability of the display panel.

[0054] Continue to refer Figure 1 and Figure 2 As shown, the second metal layer 300 includes a first metal division 310 and a second metal division 320, and the first metal division 310 and the second metal division 320 are electrically connected; the first metal division 310 is located on a side of the first metal layer 200 away from the substrate 100, and the second metal division 320 is located on a side of the substrate 100; the distance between the side of the first metal division 310 away from the substrate 100 and the substrate 100 is a first distance L1; the distance between the side of the second metal division 320 away from the substrate 100 and the substrate 100 is a second distance L2; wherein, |L1-L2| / L2≤20%.

[0055] Specifically, refer to Figure 2 As shown, the second metal layer 300 includes a first metal section 310 and a second metal section 320, wherein the first metal section 310 is located on the side of the first metal layer 200 away from the substrate 100, that is, the first metal section 310 is located on the side of the first wiring section 211 away from the substrate 100 and on the side of the second wiring section 212 away from the substrate 100; and the second metal section 320 is located on one side of the substrate 100, that is, the second metal section 320 is filled in the gap S0. It can be understood that the second metal layer 300 is not only filled in the gap S0, but also spreads to part of the first metal wiring 210, so that the contact area between the second metal layer 300 and the first metal wiring 210 can be increased, thereby ensuring the repair effect of the first metal wiring 210 and ensuring the stability and reliability of the signal transmission of the display panel 10.

[0056] For further reference, Figure 2 As shown, the distance between the side of the first metal portion 310 away from the substrate 100 and the substrate 100 is a first distance L1, that is, Figure 2 The distance between the upper surface of the first metal section 310 and the upper surface of the substrate 100 is a first distance L1; the distance between the side of the second metal section 320 away from the substrate 100 and the substrate 100 is a second distance L2, that is, Figure 2 The distance between the upper surface of the second metal division 320 and the upper surface of the substrate 100 is the second distance L2, and |L1-L2| / L2≤20%, which can be understood as the values ​​of L1 and L2 are close or the same. That is, the side of the first metal division 310 away from the substrate 100 and the side of the second metal division 320 away from the substrate 100 are the same or close in height, that is, the second metal layer 300 has flatness as a whole. The second metal layer 300 has flatness, and reference Figure 3 and Figure 4As shown, the second insulating layer 500 prepared subsequently further ensures the flatness of the entire display panel 10 . The relatively flat second metal layer 300 and the second insulating layer 500 can facilitate the preparation of subsequent film layers of the display panel 10 .

[0057] In general, the second metal layer 300 of the display panel 10 repaired in the repair area 101 has a high film flatness, which is beneficial to ensure the overall structural uniformity and flatness of the display panel 10 , thereby ensuring the structural stability of the display panel 10 .

[0058] Continue to refer Figure 3 and Figure 4 As shown, the distance between the side of the first metal layer 200 away from the substrate 100 and the substrate 100 is a third distance L3; wherein, 6000 microns ≤ L1 ≤ 7000 microns; 6000 microns ≤ L2 ≤ 7000 microns; 4500 microns ≤ L3 ≤ 5500 microns.

[0059] Specifically, refer to Figure 3 and Figure 4 As shown, the distance between the side of the first metal layer 200 away from the substrate 100 and the substrate 100 is L3, that is, Figure 3 The distance between the upper surface of the first metal layer 200 and the upper surface of the substrate 100 is L3, which can also be understood as the average film thickness of the first metal layer 200 is L3.

[0060] Specifically, the third distance L3 satisfies: 4500 microns ≤ L3 ≤ 5500 microns, that is, L3 may be at least one of 4500 microns, 4600 microns, 5000 microns, 5300 microns or 5500 microns. Preferably, the third distance L3 may be 5000 microns.

[0061] Further, the first distance L1 satisfies: 6000 microns ≤ L1 ≤ 7000 microns, that is, L1 can be at least one of 6000 microns, 6300 microns, 6500 microns, 6800 microns or 7000 microns, preferably, the first distance L1 can be 6500 microns. The second distance L2 can also satisfy 6000 microns ≤ L2 ≤ 7000 microns.

[0062] Continue to refer Figure 3 and Figure 4 As shown, the distance between the side of the first insulating layer 400 away from the substrate 100 and the first metal layer 200 is a fourth distance L4; the distance between the side of the second insulating layer 500 away from the substrate 100 and the first metal layer 200 is a fifth distance L5; wherein, 1000 microns ≤ L4 ≤ 2000 microns; 2500 microns ≤ L5 ≤ 3500 microns.

[0063] The distance between the first insulating layer 400 and the first metal layer 200, which is away from the substrate 100, is a fourth distance L4. Figure 3 The distance between the upper surface of the first insulating layer 400 and the upper surface of the first metal layer 200 is L4, which can also be understood as the average thickness of the first insulating layer 400 disposed on one side of the first metal layer 200 is L4. The distance between the side of the second insulating layer 500 away from the substrate 100 and the first metal layer 200 is the fifth distance L5, that is, Figure 3 The distance between the upper surface of the second insulating layer 500 and the upper surface of the first metal layer 200 is L5, which can also be understood as the average film thickness of the second insulating layer 500 disposed on one side of the first metal layer 200 is L5.

[0064] Specifically, the fourth distance L4 satisfies: 1000 microns ≤ L4 ≤ 2000 microns, that is, L4 can be at least one of 1000 microns, 1500 microns, 1800 microns or 2000 microns. Further, the fifth distance L5 satisfies: 2500 microns ≤ L5 ≤ 3500 microns, that is, L5 can be at least one of 2500 microns, 2800 microns, 3000 microns, 3300 microns or 3500 microns. Preferably, the fifth distance L5 can be 3000 microns.

[0065] Optionally, the material of the first metal layer 200 is the same as the material of the second metal layer 300 .

[0066] Specifically, the first metal wiring 210 included in the first metal layer 200 is electrically connected to the second metal layer 300, that is, the second metal layer 300 can repair the fracture of the first metal wiring 210 by being electrically connected to the first metal wiring 210, thereby ensuring the normal transmission of the signal in the first metal wiring 210. Further, the material of the first metal layer 200 is the same as that of the second metal layer 300, so that the resistance at the electrical connection between the first metal wiring 210 and the second metal layer 300 is relatively stable, and will not cause excessive interference to the transmitted signal, thereby ensuring the overall stability of the display panel 10. The embodiment of the present invention does not specifically limit the material type of the first metal layer 200 and the second metal layer 300, for example, it can be a Ti / Al / Ti metal stack or a Mo / Al / Mo metal stack, etc., and can be adaptively adjusted based on the material of the metal film layer of the different display panels 10, and the embodiment of the present invention will not be illustrated one by one here.

[0067] Based on the same inventive concept, an embodiment of the present invention further provides a method for repairing a display panel. Figure 5 is a flow chart of a display panel repair method provided by an embodiment of the present invention, with reference to Figure 5 As shown, the repair method includes:

[0068] S110, preparing a second metal layer in the repair area of ​​the display panel to electrically connect the first wiring division and the second wiring division.

[0069] The display panel includes a substrate, which may be a rigid substrate, such as a glass substrate. The materials of the substrates in different display surfaces are different, and the embodiment of the present invention does not specifically limit the type of substrate. Furthermore, the display panel also includes a first metal layer, which is located on one side of the substrate. By patterning the first metal layer, metal traces can be prepared. The metal traces in the display panel can carry different electrical signals, thereby realizing various functions of the display panel, such as display functions.

[0070] Furthermore, the first metal layer includes a first metal routing, and the first metal routing includes a first routing section and a second routing section, and there is a gap between the first routing section and the second routing section. This can be understood as that the first metal routing is disconnected, and there is a gap at the disconnection, and the first routing section and the second routing section are on both sides of the gap. If the first metal routing is disconnected, the signal transmitted on the first metal routing cannot be transmitted normally, so the first metal routing needs to be repaired to ensure the normal operation of the display panel. Further, the gap is repaired to ensure that the first routing section and the second routing section can be short-circuited, thereby ensuring the normal transmission of the signal in the first metal routing. Therefore, the area where the gap is located is repaired, and this area can be understood as the repair area of ​​the display panel.

[0071] Furthermore, a second metal layer is prepared to electrically connect the first routing section and the second routing section. The second metal layer is located on the side of the first metal layer away from the substrate, and the second metal layer covers at least part of the first routing section and at least part of the second routing section. At the same time, the second metal layer also fills the space at the gap, so that the disconnected first routing section can be electrically connected to the second routing section through the second metal layer, that is, the second metal layer can be understood as a metal film layer for repairing the first metal routing.

[0072] S120 , preparing a first insulating layer in the repair area of ​​the display panel, wherein the first insulating layer covers the second metal layer.

[0073] Among them, the display panel also prepares a first insulating layer, which mainly covers the second metal layer set in the repair area, so as to protect the second metal layer. Exemplarily, after the display panel repairs the broken metal wiring, there is generally a process of flushing the panel, but this process will affect the repaired metal (the repaired metal is deposited later, and the repaired metal will fall off in some areas during the flushing and cleaning process of the display panel, so there may be repair failures, etc.), that is, it will affect the second metal layer. After the second metal layer is deposited, the display panel provided by the embodiment of the present invention deposits a first insulating layer on the side of the second metal layer away from the substrate. The first insulating layer can protect the second metal layer to prevent the second metal layer from partially falling off during the cleaning and flushing process of the display panel. That is, the preparation of the first insulating layer can improve the repair effect of the wiring in the display panel and ensure the stability of the structure of the display panel.

[0074] S130, preparing a second insulating layer in the entire area of ​​the display panel, the second insulating layer being located on a side of the first insulating layer away from the substrate, and the second insulating layer covering the second metal layer and the first metal layer.

[0075] Furthermore, the second insulating layer is prepared, and the second insulating layer covers the first insulating layer and the first metal layer, that is, the second insulating layer is prepared on the entire surface, and covers both the first metal layer and the first insulating layer. Specifically, the number of metal film layers in the display panel is diverse, and the first metal layer is covered by the second insulating layer to avoid short circuit between the first metal layer and other metal film layers prepared subsequently, that is, to ensure that there is no signal interference and influence between the metal film layer prepared subsequently and the first metal layer, thereby ensuring the stability and reliability of the overall signal transmission of the display panel. Furthermore, the second insulating layer also covers the first insulating layer, and the second insulating layer can play a flattening role, ensuring that the display panel has flatness in the repair area and the film layer around the repair area, and ensuring the overall flatness of the display panel.

[0076] In summary, the display panel repair method provided by the embodiment of the present invention prepares a second metal layer to cover at least a portion of the first routing section and at least a portion of the second routing section, and fills the gap, that is, the second metal layer short-circuits the first metal routing that is disconnected at the gap, thereby realizing the repair of the first metal routing; the display panel also prepares a first insulating layer, and the first insulating layer covers the second metal layer, which can protect the second metal layer and prevent the second metal layer from falling off when the display panel is cleaned, so that the first insulating layer can include the structural stability of the second metal layer, thereby ensuring the repair effect of the first metal routing and ensuring the overall structural stability of the display panel.

[0077] Optional, Figure 6is a flowchart of another display panel repair method provided by an embodiment of the present invention, referring to Figure 6 As shown, the repair method includes:

[0078] S210, etching the first metal wiring in the repair area by using a laser to reduce the step between the first wiring section and the second wiring section at the gap.

[0079] Before the display panel repairs the broken wiring, that is, before repairing the first metal wiring, the first metal wiring in the repair area can be etched by laser. Specifically, etching can reduce the steps of the first wiring section and the second wiring section at the gap, that is, the first wiring section and the second wiring section at the gap can be made flatter by laser etching. After the first metal wiring is etched by laser, the wiring at the gap is relatively flat and the steps are relatively gentle, which is convenient for the subsequent deposition of the second metal layer, that is, it is convenient for the subsequent repair of the first metal wiring.

[0080] S220, positioning the working window of the film deposition device to the repair area.

[0081] The film deposition device can be used to deposit a metal layer or an insulating layer, wherein the film deposition device has a corresponding working window, and the required film structure is deposited at the working window. Specifically, the working window of the film deposition device is adjusted to the repair area, that is, the working window is adjusted to the target area.

[0082] S230, adjusting the working window of the film deposition device to a first width.

[0083] Specifically, the working window is adjusted to a first width, and the first width should be greater than the width of the gap in the repair area, so that the deposited second metal layer can fill the gap and cover at least a portion of the first metal wiring.

[0084] S240, using a film deposition device to deposit a second metal layer on a side of the first metal layer away from the substrate.

[0085] Furthermore, after adjusting the width and position of the working window, a second metal layer is deposited using a film deposition device. And the second metal layer is deposited on the side of the first metal layer away from the substrate. Exemplarily, tungsten hexacarbonyl (W(CO)6) can be used as a precursor, and the second metal layer can be deposited on the substrate and the first metal layer by vapor deposition, that is, the material of the deposited second metal layer is tungsten. Furthermore, at a suitable temperature, W(CO)6 and argon gas are introduced to prepare a uniform and dense second metal layer at a preset position.

[0086] S250, adjusting the working window of the film deposition device to a second width.

[0087] Furthermore, after preparing the second metal layer, the first insulating layer can be deposited using the same film deposition device, thereby reducing the cost of process preparation.

[0088] Specifically, when depositing the first insulating layer, the working window is adjusted to the second width, and the second width should be greater than the first width, so that the deposited first insulating layer can cover the second metal layer, that is, protect the second metal layer.

[0089] S260, using a film deposition device to deposit a first insulating layer on a side of the second metal layer away from the substrate.

[0090] Further, after adjusting the width and position of the working window, a first insulating layer is deposited using a film deposition device. The first insulating layer is deposited on the side of the second metal layer away from the substrate. Exemplarily, silane (SiH4) can be used as a precursor to deposit the insulating layer on the second metal layer using a vapor deposition method. Further, SiH4 and oxygen are introduced at a suitable temperature to prepare a uniform and dense first insulating layer at a preset position.

[0091] S270 , cleaning the repair area of ​​the display panel.

[0092] Furthermore, after the display panel repairs the broken metal wiring, the display panel will be cleaned to avoid the cleaning process affecting the second metal layer, and the process of cleaning the display panel is placed after the preparation of the first insulating layer. Specifically, after the second metal layer is deposited, the display panel provided by the embodiment of the present invention deposits the first insulating layer on the side of the second metal layer away from the substrate. The first insulating layer can protect the second metal layer to avoid the situation where part of the structure of the second metal layer falls off during the cleaning and flushing process of the display panel, that is, the preparation of the first insulating layer can improve the repair effect of the wiring in the display panel and ensure the stability of the structure of the display panel.

[0093] S280, preparing a second insulating layer in the entire area of ​​the display panel, the second insulating layer being located on a side of the first insulating layer away from the substrate, and the second insulating layer covering the second metal layer and the first metal layer.

[0094] Based on the same inventive concept, an embodiment of the present invention further provides a display device, Figure 7 is a schematic diagram of a display device provided in an embodiment of the present invention, wherein the display device includes any display panel provided in the above-mentioned embodiments. Figure 7 The display device 1 includes a display panel 10. Therefore, the display device also has the beneficial effects of the display panel in the above embodiment. The similarities can be understood by referring to the above explanation of the display panel, which will not be repeated below.

[0095] The display device 1 provided in the embodiment of the present invention can be any electronic product with a display function, including but not limited to the following categories: televisions, laptops, desktop displays, tablet computers, digital cameras, smart bracelets, smart glasses, car displays, industrial control equipment, medical display screens, touch interactive terminals, etc., and the embodiment of the present invention does not make special limitations on this.

[0096] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A display panel, characterized in that: Includes restoration areas; The display panel further includes: substrate; A first metal layer, the first metal layer is located at one side of the substrate; the first metal layer includes a first metal routing extending along a first direction; the first metal routing includes a first routing section and a second routing section, and along the first direction, a gap is included between the first routing section and the second routing section; the gap is located in the repair area; a second metal layer, the second metal layer being located on a side of the first metal layer away from the substrate, the second metal layer covering at least a portion of the first routing section and at least a portion of the second routing section, and the second metal layer filling the gap; a first insulating layer, the first insulating layer being located on a side of the second metal layer away from the substrate, and the first insulating layer covering the second metal layer; a second insulating layer, the second insulating layer being located on a side of the first insulating layer away from the substrate, and covering the first insulating layer and the first metal layer; Wherein, the first direction is parallel to the plane where the substrate is located.

2. The display panel according to claim 1, characterized in that: The second metal layer includes a first metal section and a second metal section, the first metal section and the second metal section are electrically connected; the first metal section is located on a side of the first metal layer away from the substrate, and the second metal section is located on a side of the substrate; The distance between the side of the first metal section away from the substrate and the substrate is a first distance L1; the distance between the side of the second metal section away from the substrate and the substrate is a second distance L2; Among them, |L1-L2| / L2≤20%.

3. The display panel according to claim 2, characterized in that: The distance between the side of the first metal layer away from the substrate and the substrate is a third distance L3; Among them, 6000 microns ≤ L1 ≤ 7000 microns; 6000 microns ≤ L2 ≤ 7000 microns; 4500 microns ≤ L3 ≤ 5500 microns.

4. The display panel according to claim 1, characterized in that: The distance between the first metal layer and the side of the first insulating layer away from the substrate is a fourth distance L4; the distance between the first metal layer and the side of the second insulating layer away from the substrate is a fifth distance L5; Among them, 1000 microns ≤ L4 ≤ 2000 microns; 2500 microns ≤ L5 ≤ 3500 microns.

5. The display panel according to claim 1, characterized in that: The material of the first metal layer is the same as that of the second metal layer.

6. A method for repairing a display panel, characterized in that: Used to form the display panel according to any one of claims 1 to 5, the repair method comprising: Preparing a second metal layer in the repair area of ​​the display panel to electrically connect the first wiring division and the second wiring division; Prepare a first insulating layer in the repair area of ​​the display panel, wherein the first insulating layer covers the second metal layer; A second insulating layer is prepared on the entire area of ​​the display panel, the second insulating layer is located on a side of the first insulating layer away from the substrate, and the second insulating layer covers the second metal layer and the first metal layer.

7. The repair method according to claim 6, characterized in that: Before preparing the second insulating layer, the method further comprises: Cleaning the repair area of ​​the display panel.

8. The repair method according to claim 6, characterized in that: Before preparing the second metal layer, the method further comprises: The first metal wiring in the repair area is etched by laser to reduce the step between the first wiring section and the second wiring section at the gap.

9. The repair method according to claim 6, characterized in that: Preparing the second metal layer includes: Position the working window of the film deposition device to the repair area; Adjusting the working window of the film deposition device to a first width; Depositing the second metal layer on the side of the first metal layer away from the substrate using the film deposition device; Preparing the first insulating layer includes: Adjusting the working window of the film deposition device to a second width; wherein the first width is smaller than the second width; The first insulating layer is deposited on a side of the second metal layer away from the substrate by using the film deposition device.

10. A display device, characterized in that: A display panel comprising any one of claims 1 to 5.

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