CN114675455A - Array substrate and signal line breakage repairing method thereof - Google Patents
Array substrate and signal line breakage repairing method thereof Download PDFInfo
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- CN114675455A CN114675455A CN202210271309.9A CN202210271309A CN114675455A CN 114675455 A CN114675455 A CN 114675455A CN 202210271309 A CN202210271309 A CN 202210271309A CN 114675455 A CN114675455 A CN 114675455A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136259—Repairing; Defects
- G02F1/136272—Auxiliary lines
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136222—Colour filters incorporated in the active matrix substrate
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136259—Repairing; Defects
- G02F1/136263—Line defects
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136286—Wiring, e.g. gate line, drain line
- G02F1/13629—Multilayer wirings
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
Abstract
The application discloses a substrate and a signal wire disconnection repairing method thereof, a plurality of signal wires, a color resistance layer and a repairing wire, wherein the plurality of signal wires are arranged on the substrate, the plurality of signal wires comprise at least one first signal wire, and the first signal wire comprises a first connecting section, a second connecting section and a transmission gap section positioned between the first connecting section and the second connecting section; the color resistance layer is arranged on the signal wires and comprises a plurality of grooves arranged at intervals; the repairing line is arranged on the color resistance layer and covers at least part of the groove, wherein the first connecting section and the second connecting section are communicated with each other through the repairing line. The problem of poor display caused by the broken signal lines in the array substrate can be solved.
Description
Technical Field
The application relates to the technical field of display, in particular to an array substrate and a signal line disconnection repairing method thereof.
Background
With the development of display technology, display devices such as liquid crystal displays and flexible organic light emitting diode displays have advantages of high image quality, power saving, thin body, and wide application range, and thus are widely used in various consumer electronics devices such as mobile phones, televisions, personal digital assistants, digital cameras, notebook computers, and desktop computers, and are becoming the mainstream of display devices.
Both the liquid crystal display and the flexible organic light emitting diode display use thin film transistors to drive the display. When the liquid crystal display is used for a long time or the flexible display is bent, the gate line or the data line connected with the thin film transistor in the array substrate is easily broken along the dotted line, and the breakage may cause that the voltage of the signal cannot be normally transmitted, so that the pixel unit at the broken position cannot normally work, and the display is poor.
Disclosure of Invention
The embodiment of the application provides an array substrate and a signal line disconnection repairing method thereof, which can solve the problem of poor display caused by the signal line disconnection in the array substrate.
In one aspect, an embodiment of the present application provides an array substrate, including: the signal lines are arranged on the substrate and comprise at least one first signal line, and the first signal line comprises a first connecting section, a second connecting section and a transmission gap section positioned between the first connecting section and the second connecting section; the color resistance layer is arranged on the signal wires and comprises a plurality of grooves arranged at intervals; the repairing line is arranged on the color resistance layer and covers at least part of the groove, and the first connecting section and the second connecting section are communicated with each other through the repairing line.
Optionally, in some embodiments of the present application, the repair line includes a first repair segment and a second repair segment, the first repair segment is disposed in the groove, the second repair segment is located between two adjacent grooves, two ends of the second repair segment are respectively connected to the first repair segment, wherein at least two of the first repair segments are respectively connected to the first connection segment and the second connection segment.
Optionally, in some embodiments of the present application, the repair line includes a first conductive layer, a metal layer, and a second conductive layer, and the metal layer is disposed between the first conductive layer and the second conductive layer.
Optionally, in some embodiments of the present application, the material of each of the first conductive layer and the second conductive layer includes indium zinc oxide, and the material of the metal layer includes silver.
Optionally, in some embodiments of the present application, the repair line is disposed to be staggered with respect to the signal line.
Optionally, in some embodiments of the present application, an orthographic projection of the repair line on the substrate covers an orthographic projection of the signal line on the substrate.
Optionally, in some embodiments of the present application, the signal line includes a scan line or a data line.
Optionally, in some embodiments of the present application, the array substrate further includes an insulating layer, and the insulating layer is disposed between the signal line and the color resistance layer.
On the other hand, the application provides a method for repairing broken signal lines of an array substrate, which comprises the following steps: forming a plurality of signal lines, wherein the plurality of signal lines comprise at least one first signal line, and the first signal line comprises a first connecting section, a second connecting section and a transmission gap section positioned between the first connecting section and the second connecting section; forming a color resistance layer, wherein the color resistance layer is formed on the signal wires and comprises a plurality of grooves which are arranged at intervals; and forming a repairing wire which is formed on the color resistance layer and covers at least part of the groove, wherein the first connecting section and the second connecting section are mutually communicated through the repairing wire.
Optionally, in some embodiments of the present application, the forming a repair line, where the repair line is formed on the color resist layer and covers at least a part of the groove, where the step of communicating the first connection segment and the second connection segment with each other through the repair line specifically includes: the repairing wire comprises a first repairing section and a second repairing section, the first repairing section is arranged in the grooves, the second repairing section is positioned between two adjacent grooves, and two ends of the second repairing section are respectively connected with the first repairing section; welding the first connecting section and the second connecting section on two sides of the transmission gap section with the adjacent first repairing section by adopting a laser welding method to form a welding section between the first signal wire and the repairing wire; and cutting off the repairing wires on the two sides of the welding section by adopting a laser cutting method so as to disconnect the welding section from the repairing wires.
The embodiment of the application provides an array substrate and a signal line disconnection repairing method thereof, wherein the array substrate comprises: the signal lines are arranged on the substrate and comprise at least one first signal line, and the first signal line comprises a first connecting section, a second connecting section and a transmission gap section positioned between the first connecting section and the second connecting section; the color resistance layer is arranged on the signal wires and comprises a plurality of grooves arranged at intervals; the repairing line is arranged on the color resistance layer and covers at least part of the groove, and the first connecting section and the second connecting section are communicated with each other through the repairing line. The array substrate provided by the application enables the first connecting section and the second connecting section to be communicated with each other through the repairing line arranged on the color resistance layer, and can solve the problem that poor display is caused by broken signal lines in the array substrate.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a cross-sectional view of an array substrate provided in an embodiment of the present application;
FIG. 2 is a cross-sectional view of a repair wire provided by an embodiment of the present application;
fig. 3 is a schematic view of a first structure of an array substrate according to an embodiment of the present disclosure;
fig. 4 is a schematic view of a second structure of an array substrate provided in the present application;
fig. 5 is a schematic structural diagram of a third structure of an array substrate provided in an embodiment of the present application;
fig. 6 is a schematic diagram of a fourth structure of an array substrate provided in the embodiment of the present application;
fig. 7 is a flowchart of a method for repairing a broken signal line of an array substrate according to an embodiment of the present disclosure;
fig. 8 is a second cross-sectional view of an array substrate according to an embodiment of the present application.
100/200/300/400, an array substrate, 10, a substrate, 20, a signal line, 21, a first signal line, 211, a first connecting section, 212, a transmission gap section, 213, a second connecting section, 22, a second signal line, 30, a color resistance layer, 31, a groove, 40, a repair line, 41, a first repair section, 42, a second repair section, 401, a first conductive layer, 402, a metal layer, 403, a second conductive layer, 50 and an insulating layer.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The embodiment of the application provides an array substrate and a signal line breakage repairing method thereof, and aims to solve the problem that the display effect of the array substrate is influenced due to the fact that the reliability of a thin film transistor is reduced due to the fact that a flexible substrate generates a polarization phenomenon. The following are detailed descriptions. It should be noted that the following description of the embodiments is not intended to limit the preferred order of the embodiments. In addition, in the description of the present application, the term "including" means "including but not limited to". The terms "first", "second", "third", etc. are used merely as labels to distinguish between different objects, and not to describe a particular order.
Referring to fig. 1 to 3, fig. 1 is a cross-sectional view of an array substrate according to an embodiment of the present disclosure; FIG. 2 is a cross-sectional view of a repair wire 40 provided by an embodiment of the present application; fig. 3 is a schematic view of a first structure of an array substrate according to an embodiment of the present disclosure. As shown in fig. 1, an array substrate 100 includes: the signal line repair circuit comprises a substrate 10, a plurality of signal lines 20, a color resistance layer 30 and a repair line 40, wherein the plurality of signal lines 20 are arranged on the substrate 10, the plurality of signal lines 20 comprise at least one first signal line 21, and the first signal line 21 comprises a first connecting section 211, a second connecting section 213 and a transmission gap section 212 positioned between the first connecting section 211 and the second connecting section 213; the color resistance layer 30 is arranged on the plurality of signal lines 20, and the color resistance layer 30 comprises a plurality of grooves 31 arranged at intervals; the repair line 40 is disposed on the color resist layer 30 and covers at least a portion of the groove 31, wherein the first connection segment 211 and the second connection segment 213 are communicated with each other through the repair line 40.
According to the array substrate 100 provided by the application, the repair line 40 is arranged on the color resistance layer 30, so that the first connecting section 211 and the second connecting section 213 in the first signal line 21 are communicated with each other through the repair line 40, and the problem of poor display caused by disconnection of the signal line 20 in the array substrate can be solved.
In the embodiment of the present application, the plurality of signal lines 20 includes at least a first signal line 21 and a plurality of second signal lines 22. Specifically, the first signal line 21 includes a transmission gap section 212 and a first connection section 211 and a second connection section 213 located at both sides of the transmission gap section 212, wherein the transmission gap section 212 has a signal transmission defect. In the manufacturing process of the display panel, due to the fluctuation of the manufacturing process, defects such as cracks or excessive impedance may easily occur in a portion of the plurality of signal lines 20, and the first signal line 21 is the signal line 20 in which the defects such as cracks occur in the manufacturing process of the display panel, and the second signal line 22 is the other signal line 20 for normally transmitting signals.
In the embodiment of the present application, the array substrate 100 further includes an insulating layer 50, and the insulating layer 50 is disposed between the signal line 20 and the color resistance layer 30. The material of the insulating layer 50 may be silicon oxide, silicon nitride, or a combination of the two. Specifically, the insulating layer 50 may be classified as a gate insulating layer 50 or an interlayer insulating layer 50.
It should be noted that the display panel provided in the embodiment of the present invention may be a liquid crystal display panel in which a color filter layer is directly formed on the array substrate 100, that is, in the process of manufacturing the display panel, the color resist layer 30 is integrally formed on one side of the array substrate 100, which can effectively solve the problems of light leakage and the like caused by alignment deviation in the cell alignment process of the liquid crystal display device. In the embodiment of the invention, the array substrate 100 includes a substrate, and a thin film transistor device and an electrode device disposed on the substrate, the thin film transistor device includes a gate electrode disposed on the same layer as the scan line and electrically connected to the scan line, a source electrode and a drain electrode disposed on the same layer as the data line and electrically connected to the data line, and an active layer having two sides respectively connected to the source electrode and the drain electrode, and the color barrier layer 30 is disposed on the interlayer insulating layer 50. In addition, the display panel further includes an opposite substrate, a liquid crystal layer disposed between the array substrate 100 and the opposite substrate, and a pixel electrode, a common electrode, and the like disposed on the array substrate 100. The display panel further includes other display components, such as an alignment film and a sealant between the array substrate 100 and the opposite substrate. The arrangement can be performed by reference to conventional processes, which are not described in detail herein.
In the embodiment of the present application, the data lines and the scan lines are distributed in an intersecting manner to define a plurality of pixel regions distributed in an array, wherein the color resistance layer 30 is provided with a plurality of grooves 31 arranged at intervals, and the grooves 31 are arranged corresponding to the signal lines 20 and are used for conducting the first signal line 21 through the repair line 40 by performing laser welding on the repair line 40 located on the upper surface of the groove 31 and the first signal line 21 when the signal lines 20 have abnormal signal transmission. Specifically, the color resist layer 30 forms a color resist block corresponding to each pixel region, and may specifically include a red resist block, a green resist block, and a blue resist block. And a thin film transistor device is arranged corresponding to each pixel region, the source electrode of the thin film transistor device is electrically connected with the data line, and the grid electrode of the thin film transistor device is electrically connected with the scanning line so as to realize signal transmission.
In the embodiment of the present application, the repair line 40 includes a first repair segment 41 and a second repair segment 42, the first repair segment 41 is disposed in the groove 31, the second repair segment 42 is located between two adjacent grooves 31, two ends of the second repair segment 42 are respectively connected to the first repair segment 41, wherein at least two first repair segments 41 are respectively connected to the first connection segment 211 and the second connection segment 213. Specifically, the first connection section 211 and the second connection section 213 on both sides of the transmission gap section 212 are respectively welded with the adjacent first repair section 41 by using a laser welding method, and a welded section is formed between the first signal line 21 and the repair line 40; and cutting off the repairing wires 40 at the two sides of the welding section by adopting a laser cutting method so as to disconnect the welding section from the repairing wires 40 and realize the conduction of the first signal wire 21 through the welding section. That is, the repair line 40 includes a cut-off region and a repair fusion region, wherein the cut-off region is preferably a region where the color-resist layer 30 is thicker, the repair line 40 can be cut without cutting to the signal line 20, and even in the cut-off region, the repair line 40 can be connected to the data line, and of course, the repair fusion region can be cut optionally, and the present application is not limited herein; the repair weld area is preferably the groove 31 where the color resist layer 30 is thin to facilitate the connection of the repair wire 40 with the signal wire 20 by laser.
In the embodiment of the present application, as shown in fig. 2, the repair line 40 includes a first conductive layer 401, a metal layer 402, and a second conductive layer 403, the metal layer 402 being disposed between the first conductive layer 401 and the second conductive layer 403. Specifically, the material of each of the first conductive layer 401 and the second conductive layer 403 includes indium zinc oxide, and the material of the metal layer 402 includes silver. Such a sandwich structure design is beneficial to make the repair line 40 have a uniform film thickness and a uniform impedance, so as to improve the repair effect.
In the embodiment of the present application, the signal line 20 includes a scan line or a data line, and as shown in fig. 3, the signal line 20 is a data line. Specifically, the scan lines are used for carrying scan signals and the data lines are used for carrying data signals, and the scan lines and the data lines extend from the display area to the scan driving circuit of the non-display area of the array substrate 100. Specifically, when the plurality of signal lines 20 have transmission defects in the manufacturing process, that is, when the plurality of signal lines 20 include a plurality of first signal lines 21, each of the first signal lines 21 is independently selected from one of a data line and a scan line, which is determined by actual production and is not limited herein.
In the embodiment of the present application, the repair lines 40 are disposed to be staggered with respect to the signal lines 20. A plurality of data lines arranged in parallel with each other and along a first direction, and a plurality of repair lines 40 arranged in parallel with each other and sequentially along the first direction, one-to-one corresponding to the data lines. The repair line 40 may be disposed on any one of the pixel regions on both sides of the first signal line 21, and the shape of the repair line 40 is not limited herein. Correspondingly, the groove 31 in the color resistance layer 30 is arranged corresponding to the data line, and the repair line 40 covers at least a part of the groove 31, specifically, the size of the groove 31 can be adjusted according to the shape of the repair line 40 and the actual requirement, which is not limited herein.
As an embodiment of the present application, please refer to fig. 4, in which fig. 4 is a schematic diagram of a second structure of an array substrate provided in an embodiment of the present application. The array substrate 200 is different from the array substrate 100 in that the array substrate 200 has a curved repair line 40, and the repair line 40 may be disposed on any one of the pixel regions at both sides of the first signal line 21, which is not limited herein. Correspondingly, the groove 31 in the color resistance layer 30 is arranged corresponding to the data line, the repair line 40 covers at least a part of the groove 31, and specifically, the size of the groove 31 can be adjusted according to the shape of the repair line 40 and the actual requirement.
As an embodiment of the present application, please refer to fig. 5, in which fig. 5 is a schematic diagram of a third structure of an array substrate provided in an embodiment of the present application. The array substrate 300 is different from the array substrate 100 in that an orthographic projection of the repair line 40 on the substrate 10 in the array substrate 300 covers an orthographic projection of the data line on the substrate 10. That is, the array substrate 300 arranges the repair line 40 in a linear shape, and the repair line 40 is arranged right above the data line. Specifically, the repair line 40 may be disposed on any one of the pixel regions on both sides of the first signal line 21, which is not limited herein. Correspondingly, the groove 31 in the color resistance layer 30 is arranged corresponding to the data line, the repair line 40 covers at least a part of the groove 31, and specifically, the size of the groove 31 can be adjusted according to the shape of the repair line 40 and the actual requirement.
As an embodiment of the present application, please refer to fig. 6, where fig. 6 is a schematic diagram of a fourth structure of an array substrate provided in the embodiment of the present application. The array substrate 400 is different from the array substrate 100 in that the signal lines 20 in the array substrate 400 are scanning lines, and an orthogonal projection of the repair line 40 on the substrate 10 covers an orthogonal projection of the scanning lines on the substrate 10. That is, the array substrate 400 sets the repair line 40 in a linear shape, and the repair line 40 is disposed right above the scan line. Specifically, the repair line 40 may be disposed on any one of the pixel regions on both sides of the first signal line 21, which is not limited herein. Correspondingly, the groove 31 in the color resistance layer 30 is arranged corresponding to the scanning line, the repair line 40 covers at least a part of the groove 31, and specifically, the size of the groove 31 can be adjusted according to the shape of the repair line 40 and the actual requirement.
On the other hand, please refer to fig. 7 and 8, fig. 7 is a flowchart of a method for repairing a broken signal line 20 of an array substrate according to an embodiment of the present disclosure; fig. 8 is a second cross-sectional view of an array substrate according to an embodiment of the present application. As shown in fig. 7, the present application provides a method for repairing a broken signal line 20 of an array substrate, which includes the following steps:
S10, forming a plurality of signal lines 20, wherein the plurality of signal lines 20 include at least one first signal line 21, and the first signal line 21 includes a first connection segment 211, a second connection segment 213, and a transmission gap segment 212 located between the first connection segment 211 and the second connection segment 213.
In the embodiment of the present application, the plurality of signal lines 20 includes at least one first signal line 21 and a plurality of second signal lines 22. In the manufacturing process of the display panel, due to the fluctuation of the manufacturing process, defects such as cracks or excessive impedance may easily occur in a portion of the plurality of signal lines 20, and the first signal line 21 is the signal line 20 in which the defects such as cracks occur in the manufacturing process of the display panel, and the second signal line 22 is the other signal line 20 for normally transmitting signals.
Further, the first signal line 21 includes a transmission gap section 212, and a first connection section 211 and a second connection section 213 located at two sides of the transmission gap section 212, wherein the transmission gap section 212 has signal transmission defects, which may specifically include fracture or excessive impedance. The second signal line 22 may include a data line and a scan line, and in the embodiment of the present invention, the scan line is disposed on the substrate and covered by the gate insulating layer 50, and the data line is disposed on the gate insulating layer 50 and covered by the interlayer insulating layer 50. Alternatively, the second signal line 22 may further include other driving signal lines 20, such as a power line, and the embodiment of the invention is described by taking a data line and a scan line as examples.
And S20, forming a color resistance layer 30, wherein the color resistance layer 30 is formed on the plurality of signal lines 20, and the color resistance layer 30 comprises a plurality of grooves 31 arranged at intervals.
In the embodiment of the present application, the step of forming the color-resist layer 30 further includes forming an insulating layer 50, and the insulating layer 50 is formed between the plurality of signal lines 20 and the color-resist layer 30. The material of the insulating layer 50 may be silicon oxide, silicon nitride, or a combination of the two. Specifically, the insulating layer 50 may be classified as a gate insulating layer 50 or an interlayer insulating layer 50.
In the embodiment of the present application, the data lines and the scan lines are distributed in an intersecting manner to define a plurality of pixel regions distributed in an array, wherein the color resistance layer 30 is provided with a plurality of grooves 31 arranged at intervals, and the grooves 31 are arranged corresponding to the signal lines 20 and are used for conducting the first signal line 21 through the repair line 40 by performing laser welding on the repair line 40 located on the upper surface of the groove 31 and the first signal line 21 when the signal lines 20 have abnormal signal transmission. Specifically, the color resist layer 30 forms a color resist block corresponding to each pixel region, and may specifically include a red resist block, a green resist block, and a blue resist block. And a thin film transistor device is arranged corresponding to each pixel region, the source electrode of the thin film transistor device is electrically connected with the data line, and the grid electrode of the thin film transistor device is electrically connected with the scanning line so as to realize signal transmission.
And S30, forming a repair line 40, wherein the repair line 40 is formed on the color resistance layer 30 and covers at least part of the groove 31, and the first connecting section 211 and the second connecting section 213 are communicated with each other through the repair line 40.
In the embodiment of the present application, as shown in fig. 8, the repair line 40 includes a first repair segment 41 and a second repair segment 42, the first repair segment 41 is disposed in the groove 31, the second repair segment 42 is located between two adjacent grooves 31, and two ends of the second repair segment 42 are respectively connected to the first repair segment 41; respectively welding the first connecting section 211 and the second connecting section 213 at two sides of the transmission gap section 212 with the adjacent first repairing section 41 by adopting a laser welding method to form a welding section between the first signal wire 21 and the repairing wire 40; and cutting off the repairing wires 40 at the two sides of the welding section by adopting a laser cutting method so as to disconnect the welding section from the repairing wires 40 and realize the conduction of the first signal wire 21 through the welding section. That is, the repair line 40 includes a cutting area 001 and a repair area 002, wherein the cutting area 001 is preferably a thicker area of the color resistance layer 30, the repair line 40 can be cut without cutting to the signal line 20, and even the repair line 40 is connected to the data line in the cutting area 001, and of course, the repair line 40 can be cut in the repair area, which is not limited herein; the repair area is preferably the groove 31, where the color-resist layer 30 is thin, which is beneficial for connecting the repair wire 40 with the signal wire 20 by laser.
In the embodiment of the present application, as shown in fig. 2, the repair line 40 includes a first conductive layer 401, a metal layer 402, and a second conductive layer 403, the metal layer 402 being disposed between the first conductive layer 401 and the second conductive layer 403. Specifically, the material of each of the first conductive layer 401 and the second conductive layer 403 includes indium zinc oxide, and the material of the metal layer 402 includes silver. Such a sandwich structure design is advantageous to make the repair line 40 have a uniform film thickness and a uniform resistance, so as to improve the repair effect.
In the embodiment of the present application, the signal line 20 includes a scan line or a data line, and as shown in fig. 3, the signal line 20 is a data line. Specifically, the repair line 40 is disposed to be staggered with the signal line 20 or the repair line 40 is disposed directly above the signal line 20. A plurality of data lines arranged in parallel with each other and along a first direction, and a plurality of repair lines 40 arranged in parallel with each other and sequentially along the first direction, one-to-one corresponding to the data lines. The repair line 40 may be disposed on any one of the pixel regions on both sides of the first signal line 21, and the shape of the repair line 40 is not limited herein. Correspondingly, the groove 31 in the color resistance layer 30 is arranged corresponding to the data line, and the repair line 40 covers at least a part of the groove 31, specifically, the size of the groove 31 can be adjusted according to the shape of the repair line 40 and the actual requirement, which is not limited herein.
The embodiment of the application provides an array substrate and a method for repairing broken signal lines 20 thereof, wherein the array substrate comprises: the signal line repair circuit comprises a substrate 10, a plurality of signal lines 20, a color resistance layer 30 and a repair line 40, wherein the plurality of signal lines 20 are arranged on the substrate 10, the plurality of signal lines 20 comprise at least one first signal line 21, and the first signal line 21 comprises a first connecting section 211, a second connecting section 213 and a transmission gap section 212 positioned between the first connecting section 211 and the second connecting section 213; the color resistance layer 30 is arranged on the insulating layer 50, and the color resistance layer 30 comprises a plurality of grooves 31 arranged at intervals; the repair line 40 is disposed on the color resist layer 30 and covers at least a portion of the groove 31, wherein the first connection segment 211 and the second connection segment 213 are communicated with each other through the repair line 40. According to the array substrate and the method for repairing the broken signal line 20 of the array substrate, the repair line 40 is arranged on the color resistance layer 30, so that the first connecting section 211 and the second connecting section 213 in the first signal line 21 are communicated with each other through the repair line 40, and the problem of poor display caused by the broken signal line 20 in the array substrate can be solved.
The array substrate and the signal line disconnection repairing method thereof provided by the embodiment of the application are described in detail above, a specific example is applied in the description to explain the principle and the implementation manner of the application, and the description of the embodiment is only used to help understanding the method and the core idea of the application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. An array substrate, comprising:
a base substrate;
the signal lines are arranged on the substrate base plate and comprise at least one first signal line, and the first signal line comprises a first connecting section, a second connecting section and a transmission gap section positioned between the first connecting section and the second connecting section;
the color resistance layer is arranged on the signal lines and comprises a plurality of grooves arranged at intervals; and
the repairing line is arranged on the color resistance layer and covers at least part of the groove, and the first connecting section and the second connecting section are communicated with each other through the repairing line.
2. The array substrate of claim 1, wherein the repair line comprises a first repair segment and a second repair segment, the first repair segment is disposed in the groove, the second repair segment is disposed between two adjacent grooves, two ends of the second repair segment are respectively connected to the first repair segment, and at least two first repair segments are respectively connected to the first connection segment and the second connection segment.
3. The array substrate of claim 2, wherein the repair line comprises a first conductive layer, a metal layer and a second conductive layer, wherein the metal layer is disposed between the first conductive layer and the second conductive layer.
4. The array substrate of claim 3, wherein the material of the first conductive layer and the second conductive layer comprises indium zinc oxide, and the material of the metal layer comprises silver.
5. The array substrate of claim 4, wherein the repair line is staggered from the signal line.
6. The array substrate of claim 4, wherein an orthographic projection of the repair line on the substrate covers an orthographic projection of the signal line on the substrate.
7. The array substrate of claim 1, wherein the signal lines comprise scan lines or data lines.
8. The array substrate of claim 1, further comprising an insulating layer disposed between the signal line and the color resist layer.
9. A signal line disconnection repairing method of an array substrate is characterized by comprising the following steps:
Forming a plurality of signal lines, wherein the plurality of signal lines comprise at least one first signal line, and the first signal line comprises a first connecting section, a second connecting section and a transmission gap section positioned between the first connecting section and the second connecting section;
forming a color resistance layer, wherein the color resistance layer is formed on the signal wires and comprises a plurality of grooves which are arranged at intervals;
and forming a repairing line which is formed on the color resistance layer and covers at least part of the groove, wherein the first connecting section and the second connecting section are mutually communicated through the repairing line.
10. The method for repairing the broken signal wire of the array substrate according to claim 9, wherein the step of forming a repair wire formed on the color resist layer and covering at least a part of the groove, wherein the step of interconnecting the first connecting segment and the second connecting segment through the repair wire specifically comprises:
the repairing line comprises a first repairing section and a second repairing section, the first repairing section is arranged in the grooves, the second repairing section is positioned between every two adjacent grooves, and two ends of the second repairing section are respectively connected with the first repairing section;
Welding the first connecting section and the second connecting section on two sides of the transmission gap section with the adjacent first repairing section by adopting a laser welding method, and forming a welding section between the first signal wire and the repairing wire;
and cutting off the repairing wires on the two sides of the welding section by adopting a laser cutting method so as to disconnect the welding section from the repairing wires.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210271309.9A CN114675455A (en) | 2022-03-18 | 2022-03-18 | Array substrate and signal line breakage repairing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210271309.9A CN114675455A (en) | 2022-03-18 | 2022-03-18 | Array substrate and signal line breakage repairing method thereof |
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