WO2013013444A1 - Tft阵列基板、液晶显示面板及配线修补方法 - Google Patents

Tft阵列基板、液晶显示面板及配线修补方法 Download PDF

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Publication number
WO2013013444A1
WO2013013444A1 PCT/CN2011/080371 CN2011080371W WO2013013444A1 WO 2013013444 A1 WO2013013444 A1 WO 2013013444A1 CN 2011080371 W CN2011080371 W CN 2011080371W WO 2013013444 A1 WO2013013444 A1 WO 2013013444A1
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Prior art keywords
wiring
layer
line
data
scan
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PCT/CN2011/080371
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English (en)
French (fr)
Inventor
庄益壮
蔡荣茂
文松贤
邓明锋
张小新
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Priority to US13/375,230 priority Critical patent/US9312281B2/en
Publication of WO2013013444A1 publication Critical patent/WO2013013444A1/zh
Anticipated expiration legal-status Critical
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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
    • 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
    • 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

Definitions

  • the present invention relates to the field of liquid crystal display technologies, and in particular, to a TFT capable of repairing wiring (Thin Film) Transistor, thin film transistor) array substrate, liquid crystal display panel, and wiring repair method.
  • a TFT capable of repairing wiring (Thin Film) Transistor, thin film transistor) array substrate, liquid crystal display panel, and wiring repair method.
  • the TFT liquid crystal display panel is mainly composed of a TFT array substrate, a color filter substrate, and a liquid crystal molecular layer filled in a case composed of a TFT array substrate and a color filter substrate.
  • a scan line for providing a scan signal, a data line for providing a data signal, and a pixel region defined by the scan line and the data line are formed on the TFT array substrate, a pixel electrode is disposed in the pixel region, and corresponding scan line and data line are disposed outside the pixel area. Wiring area.
  • the magnitude and on-off of the voltage on the pixel electrode is controlled by a gate connected to the lateral scan line and a source connected to the vertical data line.
  • the process of the liquid crystal display panel mainly includes an array process of a TFT array substrate and a color filter substrate, a box forming process of dropping a TFT array substrate and a color filter substrate into a liquid crystal, and a subsequent module process, which appear in the above process. Any deviation may cause defects on the liquid crystal display panel, such as short circuit of the wire, open circuit or contamination of the pixel electrode may affect the picture quality of the liquid crystal display. As shown in FIG. 1, on the wiring area 2 other than the pixel region 1 of the TFT array substrate, wiring (including the scanning wiring and the data wiring) 3 is often broken at a certain position due to impurity particles or the like.
  • the existing wiring repair method reduces the yield of the liquid crystal display panel, increases the production cost and the processing procedure, and cannot meet the production requirements.
  • a main object of the present invention is to provide a TFT array substrate, a liquid crystal display panel, and a wiring repairing method, which aim to improve the yield of a liquid crystal display panel and reduce the production cost.
  • the present invention provides a TFT array substrate including a scan line for providing a scan signal and a data line for providing a data signal, and a wiring area is disposed outside the pixel area defined by the scan line and the data line.
  • the wiring area has a wiring layer composed of a scanning wiring or a data wiring, and the wiring region is provided with a back insulating layer or a wiring layer below the wiring layer.
  • the TFT array substrate is provided with a plurality of driving ICs, and the plurality of repairing line layers are arranged side by side on the wiring area in units of the driving IC; when the scanning wiring or data When the wiring is broken, a repairing line crossing the both sides of the breaking line of the scanning wiring or the data wiring of the breaking line is cut off on the repairing line layer, and is welded at the corresponding intersection point The scan wiring or the data wiring of the disconnection path is electrically connected.
  • the present invention also provides a TFT array substrate including a scan line for providing a scan signal and a data line for providing a data signal, and a wiring area is provided outside the pixel area defined by the scan line and the data line, the wiring area a wiring layer composed of a scanning wiring or a data wiring, wherein the wiring region is provided below or above the wiring layer with a back-shaped repairing line layer insulated from the wiring layer;
  • a repair line that crosses both sides of the break line of the scan wiring or the data wiring of the open circuit is cut off on the repair line layer, and is cross-cored by soldering. The point is electrically connected to the scan wiring or the data wiring of the open circuit.
  • the scan wiring or the data wiring in the wiring layer is a line parallel to each other, and a portion of the repair line layer parallel to the scan wiring or the data wiring and the scan wiring Or the data wiring is misaligned.
  • an insulating layer is disposed between the wiring layer and the repairing line layer, and the wiring layer and the repairing wire layer are insulated by the insulating layer.
  • a driving IC is connected to one end of the wiring layer away from the pixel region.
  • the repair line layer is one covering the entire wiring area.
  • a plurality of driving ICs are disposed on the TFT array substrate, and a plurality of the repairing wire layers are arranged side by side on the wiring area in units of the driving IC.
  • the repairing wire layer is formed by bending a metal wire.
  • the repair line layer is formed by nesting a plurality of closed metal wires.
  • the present invention also proposes a liquid crystal display panel comprising the TFT array substrate as described above.
  • the invention also provides a wiring repairing method for a liquid crystal display panel, comprising the following steps:
  • the cut piece of repaired wire is electrically connected to the broken scan wire or data wire at a corresponding intersection by soldering.
  • a TFT array substrate, a liquid crystal display panel and a wiring repairing method according to the present invention by adding a retro-shaped repairing line layer in a wiring area of a liquid crystal display panel, in the production process of the liquid crystal display panel, when scanning wiring or data When the wiring is broken, the repairing line on the repairing line layer that intersects both the scanning wiring of the open circuit or the breaking point of the data wiring is cut, and the cut repaired line is at the corresponding intersection by welding. It is electrically connected to the open scan wiring or data wiring, and the repaired line cut in the repairing line layer replaces the part of the broken wiring to achieve the purpose of repairing the broken wiring.
  • the scrapped products appearing in the production process of the liquid crystal display panel are repaired as good products, the product scrapping amount is reduced, the production yield rate is improved, and the production cost is saved.
  • 1 is a schematic view showing wiring repair of a conventional TFT array substrate
  • FIG. 2 is a schematic structural view of a first embodiment of a TFT array substrate of the present invention
  • FIG. 3 is a schematic view showing the wiring repair of the first embodiment of the TFT array substrate of the present invention.
  • FIG. 4 is a schematic structural view of a second embodiment of a TFT array substrate of the present invention.
  • Fig. 5 is a flow chart showing an embodiment of a wiring repairing method for a liquid crystal display panel of the present invention.
  • the solution of the present invention mainly increases the line-shaped repair line layer in the wiring area of the liquid crystal display panel.
  • the repaired line layer is The repaired wiring of the open circuit or the repair line of the circuit breaker that is crossed at both ends of the circuit breaker is cut off, and the cut repaired wire is electrically connected at the corresponding intersection and the broken scan wire or data wiring by the welding method.
  • the sexual connection is replaced by the repaired line cut in the repairing line layer to replace the part of the disconnected wiring, so as to achieve the purpose of repairing the broken wiring to improve the product yield.
  • FIG. 2 is a schematic structural view of a first embodiment of a TFT array substrate of the present invention.
  • a TFT array substrate according to a first embodiment of the present invention includes a scan line for providing a scan signal and a data line (not shown) for providing a data signal, and is disposed outside the pixel area 10 defined by the scan line and the data line.
  • the wiring layer 20 is provided above the wiring layer 30 with a retro-shaped repairing line layer 40.
  • the repairing wire layer 40 and the wiring layer 30 belong to different metal wire layers, and at the same time, in the repairing wire layer 40.
  • An insulating layer (not shown) is provided between the wiring layer 30 and the wiring layer 40 is insulated from the wiring layer 30.
  • the manufacturing process of repairing the wire layer 40, the wiring layer 30 and the insulating layer may be first spraying a metal layer on the TFT substrate, and then forming a wiring layer or a data wiring to meet the requirements. 30. Thereafter, an insulating layer is sprayed on the wiring layer 30, and finally another metal layer is sprayed on the insulating layer, and a repaired line layer 40 conforming to the desired back shape is formed.
  • the plurality of scan lines or data lines on the wiring layer are all lines arranged in parallel, and therefore, the repair lines on the line-shaped repair line layer 40 and the plurality of scan lines or data lines have Multiple intersections.
  • FIG. 3 is a schematic diagram of wiring repair of the first embodiment of the TFT array substrate of the present invention.
  • the wiring repairing principle is: on the wiring layer 30, a certain scanning wiring or data wiring 31 having two intersections 42 and 43 with a length of the repairing line 41 on the repairing line layer 40.
  • both sides of the breaking point 46 of the scanning wiring or the data wiring 31 which are disconnected are cut by laser laser cutting.
  • the above-mentioned repair lines 41 which are each intersected are cut off in front of the respective intersections 42, 43 (as shown by the cut points 44, 45 in Fig.
  • the repairing line 41 is soldered to the broken scanning wiring or the data wiring 31 through the insulating layer, and the repairing line 41 is electrically connected to the broken scanning wiring or the data wiring 31, and is repaired in the repairing layer 40.
  • the portion of the repaired wire 41 that is cut off replaces the portion of the scan wire or the data wire 31 that is broken, thereby achieving the purpose of repairing the broken scan wire or the data wire 31.
  • the liquid crystal display panel production process can be performed by the above method. Retirement products appearing in the repair are good, reducing product scrap The quantity increases the production yield and saves production costs.
  • the repairing wire layer 40 can be bent by a metal wire; in other embodiments, the repairing wire layer 40 can also be formed by nesting a plurality of closed frame-shaped metal wires to form a back shape.
  • the scanning wiring or the data wiring 31 in the wiring layer 30 are all parallel lines, it is conceivable to repair a portion of the repairing line layer 40 parallel to the scanning wiring or the data wiring 31 and the scanning wiring or data.
  • the wirings 31 are arranged in a staggered manner so that the wiring repairing process can be performed more intuitively and accurately.
  • the number of the repairing line layers 40 is the same as the number of the driving ICs 50 provided on the TFT array substrate, and the repairing line layer 40 is arranged side by side on the wiring area 20 in units of the driving IC 50, specifically, There are two repair line layers 40 in the embodiment, and the repair line layer 40 may be plural according to the number of the driving ICs 50 provided on the TFT array substrate.
  • the back-shaped repairing line layer 40 described in the above embodiment may also be disposed under the wiring layer 30; in addition, the shape of the repairing line layer 40 may also be approximately back-shaped. The shape and so on.
  • the process of repairing the disconnected wiring by means of laser laser welding and cutting can be repaired before the liquid crystal display panel is formed into a box process, or can be repaired after the liquid crystal display panel is formed into a box process, and at the same time, according to the disconnection
  • the wiring is disconnected at different locations, and different repair paths are selected.
  • the repair method still applies to the case where multiple wiring breaks occur.
  • the wiring repair is performed by chemical vapor deposition repair, and it is difficult to ensure the circuit characteristics of the wiring in the extremely limited space of the liquid crystal display panel, and even the wiring disconnection occurring after the box forming process cannot be repaired.
  • the defect of the product is low, the production cost is high, and the processing procedure is complicated.
  • the repairing line on the repairing line layer is cut off with a section of the repairing line crossing the scanning line of the open circuit or the disconnecting point of the data wiring, and the cut piece of the repairing line is correspondingly welded.
  • the intersection is electrically connected to the scan wiring or the data wiring of the disconnection, and the repaired line cut in the repairing line layer replaces the part of the disconnected wiring to achieve the purpose of repairing the broken wiring. It can repair the scrapped products appearing in the production process of the liquid crystal display panel as a good product, reduce the scrapping amount of the product, and improve the production yield rate. Saving production costs.
  • FIG. 4 is a schematic structural view of a second embodiment of the TFT array substrate of the present invention.
  • the difference between this embodiment and the above embodiment is that the repairing line layer 240 in the embodiment is one, and the repairing line layer 240 covers the entire wiring area 220. Others are similar to the first embodiment.
  • the present invention also proposes a liquid crystal display panel comprising the TFT array substrate as described above, which will not be described in detail herein.
  • FIG. 5 is a schematic flow chart of an embodiment of a wiring repairing method for a liquid crystal display panel of the present invention.
  • the invention also provides a wiring repairing method for a liquid crystal display panel, comprising:
  • Step S101 a repairing line layer insulated from the wiring layer is disposed on a wiring area outside the display area of the liquid crystal display panel, and the repairing line layer is located above or below the wiring layer;
  • Step S102 when the scan wiring or the data wiring is broken, cutting off a repairing line on the repairing line layer that intersects both the scanning wiring of the open circuit or the disconnecting point of the data wiring;
  • step S103 the cut length of the repairing line is electrically connected to the broken scan wiring or data wiring at the corresponding intersection by soldering.
  • the wiring repairing principle in this embodiment is as follows: Referring to FIG. 3, on the wiring layer 30, a certain scanning wiring or data wiring 31, and a repairing line on the repairing line layer 40 41 has two intersections 42, 43.
  • the scanning wiring or the data wiring 31 is broken (as shown by the interrupted waypoint 46 in FIG. 3)
  • the scanning wiring or data of the disconnected circuit is cut by laser laser cutting.
  • the above-mentioned repairing line 41, which intersects both sides of the breaking point 46 of the wiring 31, is cut in front of the respective intersections 42, 43 (as shown by the cutting points 44, 45 in Fig. 3), at the corresponding intersections.
  • the repairing line 41 is soldered to the broken scanning wiring or the data wiring 31 through the insulating layer, and the repairing line 41 is electrically connected to the broken scanning wiring or the data wiring 31.
  • the portion of the repairing line 41 that has been cut in the repairing line layer 40 replaces the portion of the scanning wiring or the data wiring 31 that has been disconnected, and the purpose of repairing the broken scanning wiring or the data wiring 31 is achieved.
  • different repair paths may be selected according to different positions of disconnection of the wires, and the plurality of broken scan wires or data wires 31 may be repaired.
  • the scrapped products appearing in the production process of the liquid crystal display panel can be repaired as good products, the product scraping amount is reduced, the production yield rate is improved, and the production cost is saved.
  • the repairing wire layer may be formed by bending a metal wire, or may be formed by nesting a plurality of closed frame-shaped metal wires to form a back shape.
  • the scan wiring and the data wiring in the wiring layer are mutually parallel lines, it is conceivable to arrange the partial repair lines parallel to the scan wiring or the data wiring in the repair line layer, and the scan wiring or the data wiring to be misaligned. In order to make the wiring repair process more intuitive and accurate.
  • the repairing line layer in this embodiment may be one or two or more. If one, the repairing line layer covers the entire wiring area; if there are multiple, the number of repairing line layers It is possible to match the number of the driving ICs 50 provided on the TFT array substrate, and the repairing wiring layers are arranged side by side in the wiring area in units of the driving IC 50.
  • the shape of the repairing line layer may be an approximately back-shaped shape or the like.
  • the liquid crystal display panel, and the wiring repairing method of the embodiment of the present invention by adding a retro-shaped repairing line layer in the wiring area of the liquid crystal display panel, in the production process of the liquid crystal display panel, when scanning wiring or data wiring When the circuit is broken, the repairing line on the repairing line layer is cut off with a section of the repairing line crossing the scanning line of the open circuit or the disconnecting point of the data wiring, and the cut piece of the repairing line is at the corresponding intersection point by welding.
  • the scanning wiring or the data wiring of the disconnection is electrically connected, and the part of the wiring which is cut off by the repairing line in the repairing line layer replaces the wiring of the disconnected circuit, thereby achieving the purpose of repairing the broken wiring, and by the above method,
  • the scrapped products that appear in the production process of the liquid crystal display panel are repaired as good products, which reduces the amount of scrapped products, improves the yield of production, and saves production costs.

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Abstract

一种TFT阵列基板、液晶显示面板及配线修补方法，该TFT阵列基板包括提供扫描信号的扫描线以及提供数据信号的数据线，在扫描线和数据线限定的像素区域（10）之外设有配线区（20），配线区（20）具有由扫描配线及数据配线构成的配线层（30），配线区（20）上位于配线层（30）的下方或上方设有与配线层（30）绝缘的回字形修补线层（40）；当扫描配线或数据配线断路时，在修补线层上（40），与该断路的扫描配线或数据配线的断路点的两侧均交叉的一段修补线（41）被切断，并通过焊接方式在相应的交叉点与断路的扫描配线或数据配线电性连接。本发明将液晶显示面板生产过程中出现的报废产品修复为良品，降低了产品报废量，提高了生产良品率，节约了生产成本。

Description

TFT阵列基板、液晶显示面板及配线修补方法
技术领域
本发明涉及液晶显示器技术领域，尤其涉及一种可修补配线的TFT（Thin Film Transistor，薄膜晶体管）阵列基板、液晶显示面板及配线修补方法。
背景技术
TFT液晶显示面板主要由TFT阵列基板、彩膜基板以及由TFT阵列基板与彩膜基板组成的盒中填充的液晶分子层构成。TFT阵列基板上形成提供扫描信号的扫描线、提供数据信号的数据线以及由扫描线和数据线限定的像素区域，像素区域内设有像素电极，在像素区域外设有对应扫描线和数据线的配线区。像素电极上的电压大小及通断由与横向扫描线相连接的栅极、与纵向数据线相连接的源极控制。
液晶显示面板的制程主要包括TFT阵列基板和彩膜基板的阵列工艺、将TFT阵列基板与彩膜基板对盒并滴入液晶的成盒工艺以及后续的模组工艺，在上述工艺中，出现的任何偏差都可能对液晶显示面板造成缺陷，比如导线的短路、断路或者像素电极的污染都会影响液晶显示的画面质量。如图1所示，在TFT阵列基板像素区域1之外的配线区2上，配线（包括扫描配线和数据配线）3在某个位置因杂质颗粒等经常会出现断路现象。
现有的配线修复方法，一般采用化学气相沉积修复（CVD Repair）进行接线修补，修补线4如图1所示。但是，在液晶显示面板极其有限的空间内进行接线很难保证接线的电路特性。对于在成盒工艺后出现的配线断路更是无法进行修复，目前均采用产品报废的处理方式，造成产品较大的浪费。
因此，现有的配线修补方法降低了液晶显示面板的成品率，增加了生产成本及加工工序，无法满足生产要求。
发明内容
本发明的主要目的在于提供一种TFT阵列基板、液晶显示面板及配线修补方法，旨在提高液晶显示面板的良品率，降低生产成本。
为了达到上述目的，本发明提出一种TFT阵列基板，包括提供扫描信号的扫描线以及提供数据信号的数据线，在所述扫描线和数据线限定的像素区域之外设有配线区，所述配线区具有由扫描配线或数据配线构成的配线层，其特征在于，所述配线区上位于所述配线层的下方或上方设有与所述配线层绝缘的回字形修补线层；所述TFT阵列基板上设有若干驱动IC，若干个所述修补线层以所述驱动IC为数量单位并排设置在所述配线区上；当所述扫描配线或数据配线断路时，在所述修补线层上，与该断路的扫描配线或数据配线的断路点的两侧均交叉的一段修补线被切断，并通过焊接方式在相应的交叉点与所述断路的扫描配线或数据配线电性连接。
本发明还提出一种TFT阵列基板，包括提供扫描信号的扫描线以及提供数据信号的数据线，在所述扫描线和数据线限定的像素区域之外设有配线区，所述配线区具有由扫描配线或数据配线构成的配线层，所述配线区上位于所述配线层的下方或上方设有与所述配线层绝缘的回字形修补线层；当所述扫描配线或数据配线断路时，在修补线层上，与该断路的扫描配线或数据配线的断路点的两侧均交叉的一段修补线被切断，并通过焊接方式在相应的交叉点与所述断路的扫描配线或数据配线电性连接。
优选地，所述配线层中的扫描配线或数据配线为相互平行的线，所述修补线层中与所述扫描配线或数据配线平行的部分修补线与所述扫描配线或数据配线错位排列。
优选地，所述配线层与所述修补线层之间设有绝缘层，所述配线层与所述修补线层通过所述绝缘层绝缘。
优选地，所述配线层远离像素区域的一端连接有驱动IC。
优选地，所述修补线层为一个，覆盖整个所述配线区。
优选地，所述TFT阵列基板上设有若干驱动IC，若干个所述修补线层以所述驱动IC为数量单位并排设置在所述配线区上。
优选地，所述修补线层由一根金属线弯折而成。
优选地，所述修补线层由若干根封闭的金属线嵌套而成。
本发明还提出一种液晶显示面板，包括如上所述的TFT阵列基板。
本发明还提出一种液晶显示面板的配线修补方法，包括以下步骤：
在液晶显示面板的显示区域之外的配线区上设置与配线层绝缘的修补线层，所述修补线层位于所述配线层的上方或下方；
当所述扫描配线或数据配线断路时，将所述修补线层上与该断路的扫描配线或数据配线的断路点的两侧均交叉的一段修补线切断；
通过焊接方式将所述切断的一段修补线在相应的交叉点与所述断路的扫描配线或数据配线电性连接。
本发明提出的一种TFT阵列基板、液晶显示面板及配线修补方法，通过在液晶显示面板的配线区增加回字形修补线层，在液晶显示面板的生产工艺中，当扫描配线或数据配线断路时，将修补线层上与该断路的扫描配线或数据配线的断路点的两侧均交叉的一段修补线切断，并通过焊接方式将切断的一段修补线在相应的交叉点与断路的扫描配线或数据配线电性连接，由修补线层中被切断的那段修补线替代断路的那部分配线，达到对断路的配线进行修复的目的，通过上述方法，可以将液晶显示面板生产过程中出现的报废产品修复为良品，降低了产品报废量，提高了生产良品率，节约了生产成本。
附图说明
图1是现有的TFT阵列基板的配线修补示意图；
图2是本发明TFT阵列基板第一实施例的结构示意图；
图3是本发明TFT阵列基板第一实施例的配线修补示意图；
图4是本发明TFT阵列基板第二实施例的结构示意图；
图5是本发明液晶显示面板的配线修补方法一实施例的流程示意图。
本发明目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
以下将结合附图及实施例，对实现发明目的之技术方案作详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
本发明的解决方案主要是通过在液晶显示面板的配线区增加回字形修补线层，在液晶显示面板的生产工艺中，当扫描配线或数据配线断路时，将修补线层上，与该断路的扫描配线或数据配线的断路点的两侧均交叉的一段修补线切断，并通过焊接方式将切断的一段修补线在相应的交叉点与断路的扫描配线或数据配线电性连接，由修补线层中被切断的那段修补线替代断路的那部分配线，达到对断路的配线进行修复的目的，以提高了产品良率。
请参照图2所示，图2是本发明TFT阵列基板第一实施例的结构示意图。本发明第一实施例提出的一种TFT阵列基板，包括提供扫描信号的扫描线以及提供数据信号的数据线（图中未示出），在扫描线和数据线限定的像素区域10之外设有配线区20，配线区20具有由扫描配线或数据配线构成的配线层30，配线层30中的扫描配线或数据配线远离像素区域10的一端连接有驱动IC50，本实施例中，配线区20上位于配线层30的上方设有回字形修补线层40，该修补线层40与配线层30属于不同的金属线层，同时，在修补线层40与配线层30之间设有绝缘层（图中未示出），使修补线层40与配线层30绝缘。
其中，修补线层40、配线层30与绝缘层的制作程序，可以是先在TFT基板上沉积喷涂一层金属层，然后，制成符合要求的扫描配线或数据配线构成配线层30，之后，在配线层30上喷涂一层绝缘层，最后在绝缘层上喷涂另一层金属层，并制成符合要求的回字形的修补线层40。
本实施例中，配线层上的多条扫描配线或数据配线均为平行设置的线，因此，回字形的修补线层40上的修补线与多条扫描配线或数据配线具有多个交叉点。
如图3所示，图3是本发明TFT阵列基板第一实施例的配线修补示意图。本实施例中配线修补原理为：在配线层30上，某一根扫描配线或数据配线31，其与修补线层40上的一段修补线41具有两个交叉点42、43，当该扫描配线或数据配线31断路（如图3中断路点46所示）时，通过激光镭射切断的方式，将与断路的扫描配线或数据配线31的断路点46的两侧均交叉的上述那段修补线41，在相应的交叉点42、43的前方分别切断（如图3中切断点44、45所示），并通过焊接方式，在相应的交叉点42、43处，透过绝缘层，将修补线41与断路的扫描配线或数据配线31焊接，使该段修补线41与断路的扫描配线或数据配线31电性连接，由修补线层40中被切断的那段修补线41替代断路的那部分扫描配线或数据配线31，达到对断路的扫描配线或数据配线31进行修复的目的，通过上述方法，可以将液晶显示面板生产过程中出现的报废产品修复为良品，降低了产品报废量，提高了生产良品率，节约了生产成本。
本实施例中，修补线层40可以由一根金属线弯折而成；在其他实施例中，修补线层40还可由若干根封闭的框形的金属线嵌套而成，形成回字形。
由于配线层30中的扫描配线或数据配线31均为相互平行的线，可以考虑将修补线层40中与扫描配线或数据配线31平行的部分修补线与扫描配线或数据配线31错位排列，以便更直观、更准确的进行配线的修补工序。
此外，本实施例中修补线层40的个数与TFT阵列基板上设置的驱动IC50的个数一致，修补线层40以驱动IC50为单位并排设置在配线区20上，具体地，本实施例中的修补线层40为两个，根据TFT阵列基板上设置的驱动IC50的个数，修补线层40还可为多个。
需要说明的是，在其他实施例中，上述实施例中所述的回字形的修补线层40也可设置在配线层30的下方；此外，修补线层40的形状也可以为近似回字形的形状等。
本实施例通过激光镭射焊接与切断的方式对断开的配线进行修补的过程，可以在液晶显示面板成盒制程前修复，也可以在液晶显示面板成盒制程之后修复，同时，根据断开的配线断开的位置不同，选取不同的修补路径，该修补方法对出现多条配线断路的情形仍然适用。
相较于现有技术中，采用化学气相沉积修复进行接线修补，在液晶显示面板极其有限的空间内进行接线很难保证接线的电路特性，甚至在成盒工艺后出现的配线断路无法进行修复，造成产品良品率低、生产成本高及加工工序复杂等缺陷，本实施例通过在液晶显示面板的配线区增加回字形修补线层，在液晶显示面板的生产工艺中，当扫描配线或数据配线断路时，将修补线层上，与该断路的扫描配线或数据配线的断路点的两侧均交叉的一段修补线切断，并通过焊接方式将切断的一段修补线在相应的交叉点与断路的扫描配线或数据配线电性连接，由修补线层中被切断的那段修补线替代断路的那部分配线，达到对断路的配线进行修复的目的，通过上述方法，可以将液晶显示面板生产过程中出现的报废产品修复为良品，降低了产品报废量，提高了生产良品率，节约了生产成本。
如图4所示，图4是本发明TFT阵列基板第二实施例的结构示意图。本实施例与上述实施例的区别在于，本实施例中的修补线层240为一个，该修补线层240覆盖整个配线区220。其他与第一实施例相似。
此外，本发明还提出一种液晶显示面板，包括如上所述的TFT阵列基板，在此不做详述。
如图5所示，图5是本发明液晶显示面板的配线修补方法一实施例的流程示意图。本发明还提出一种液晶显示面板的配线修补方法，包括：
步骤S101，在液晶显示面板的显示区域之外的配线区上设置与配线层绝缘的修补线层，修补线层位于配线层的上方或下方；
步骤S102，当扫描配线或数据配线断路时，将修补线层上与该断路的扫描配线或数据配线的断路点的两侧均交叉的一段修补线切断；
步骤S103，通过焊接方式将切断的一段修补线在相应的交叉点与断路的扫描配线或数据配线电性连接。
具体地，本实施例中配线修补原理为：请参照图3所示，在配线层30上，某一根扫描配线或数据配线31，其与修补线层40上的一段修补线41具有两个交叉点42、43，当该扫描配线或数据配线31断路（如图3中断路点46所示）时，通过激光镭射切断的方式，将与断路的扫描配线或数据配线31的断路点46的两侧均交叉的上述那段修补线41，在相应的交叉点42、43的前方分别切断（如图3中切断点44、45所示），在相应的交叉点42、43处，透过绝缘层，将修补线41与断路的扫描配线或数据配线31焊接，使该段修补线41与断路的扫描配线或数据配线31电性连接，由修补线层40中被切断的那段修补线41替代断路的那部分扫描配线或数据配线31，达到对断路的扫描配线或数据配线31进行修复的目的。另外，可根据相应的配线断开的位置不同，选取不同的修补路径，而且还可对多条断路的扫描配线或数据配线31进行修复。
通过上述方法，可以将液晶显示面板生产过程中出现的报废产品修复为良品，降低了产品报废量，提高了生产良品率，节约了生产成本。
本实施例中修补线层可以由一根金属线弯折而成，也可以由若干根封闭的框形的金属线嵌套而成，形成回字形。
由于配线层中的扫描配线及数据配线均为相互平行的线，可以考虑将修补线层中与扫描配线或数据配线平行的部分修补线与扫描配线或数据配线错位排列，以便更直观、更准确的进行配线的修补工序。
此外，本实施例中的修补线层可以为一个，也可以为两个或多个，若为一个，则该修补线层覆盖整个配线区；若为多个，则修补线层的个数可以与TFT阵列基板上设置的驱动IC50的个数一致，修补线层以驱动IC50为数量单位并排设置在配线区。
此外，修补线层的形状也可以为近似回字形的形状等。
本发明实施例TFT阵列基板、液晶显示面板及配线修补方法，通过在液晶显示面板的配线区增加回字形修补线层，在液晶显示面板的生产工艺中，当扫描配线或数据配线断路时，将修补线层上，与该断路的扫描配线或数据配线的断路点的两侧均交叉的一段修补线切断，并通过焊接方式将切断的一段修补线在相应的交叉点与断路的扫描配线或数据配线电性连接，由修补线层中被切断的那段修补线替代断路的那部分配线，达到对断路的配线进行修复的目的，通过上述方法，可以将液晶显示面板生产过程中出现的报废产品修复为良品，降低了产品报废量，提高了生产良品率，节约了生产成本。
以上所述仅为本发明的优选实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (20)

  1. 一种TFT阵列基板，包括提供扫描信号的扫描线以及提供数据信号的数据线，在所述扫描线和数据线限定的像素区域之外设有配线区，所述配线区具有由扫描配线或数据配线构成的配线层，其特征在于，所述配线区上位于所述配线层的下方或上方设有与所述配线层绝缘的回字形修补线层；所述TFT阵列基板上设有若干驱动IC，若干个所述修补线层以所述驱动IC为数量单位并排设置在所述配线区上；当所述扫描配线或数据配线断路时，在所述修补线层上，与该断路的扫描配线或数据配线的断路点的两侧均交叉的一段修补线被切断，并通过焊接方式在相应的交叉点与所述断路的扫描配线或数据配线电性连接。
  2. 根据权利要求1所述的TFT阵列基板，其特征在于，所述配线层与所述修补线层之间设有绝缘层，所述配线层与所述修补线层通过所述绝缘层绝缘。
  3. 根据权利要求2所述的TFT阵列基板，其特征在于，所述配线层中的扫描配线或数据配线为相互平行的线，所述修补线层中与所述扫描配线或数据配线平行的部分修补线与所述扫描配线或数据配线错位排列。
  4. 根据权利要求3所述的TFT阵列基板，其特征在于，所述修补线层由一根金属线弯折而成。
  5. 根据权利要求3所述的TFT阵列基板，其特征在于，所述修补线层由若干根封闭的金属线嵌套而成。
  6. 一种TFT阵列基板，包括提供扫描信号的扫描线以及提供数据信号的数据线，在所述扫描线和数据线限定的像素区域之外设有配线区，所述配线区具有由扫描配线或数据配线构成的配线层，其特征在于，所述配线区上位于所述配线层的下方或上方设有与所述配线层绝缘的回字形修补线层；当所述扫描配线或数据配线断路时，在修补线层上，与该断路的扫描配线或数据配线的断路点的两侧均交叉的一段修补线被切断，并通过焊接方式在相应的交叉点与所述断路的扫描配线或数据配线电性连接。
  7. 根据权利要求6所述的TFT阵列基板，其特征在于，所述配线层与所述修补线层之间设有绝缘层，所述配线层与所述修补线层通过所述绝缘层绝缘。
  8. 根据权利要求7所述的TFT阵列基板，其特征在于，所述配线层中的扫描配线或数据配线为相互平行的线，所述修补线层中与所述扫描配线或数据配线平行的部分修补线与所述扫描配线或数据配线错位排列。
  9. 根据权利要求8所述的TFT阵列基板，其特征在于，所述配线层中的扫描配线或数据配线远离像素区域的一端连接有驱动IC。
  10. 根据权利要求9所述的TFT阵列基板，其特征在于，所述修补线层为一个，覆盖整个所述配线区。
  11. 根据权利要求6所述的TFT阵列基板，其特征在于，所述修补线层由一根金属线弯折而成。
  12. 根据权利要求6所述的TFT阵列基板，其特征在于，所述修补线层由若干根封闭的金属线嵌套而成。
  13. 一种液晶显示面板，包括TFT阵列基板，其特征在于，所述TFT阵列基板包括提供扫描信号的扫描线以及提供数据信号的数据线，在所述扫描线和数据线限定的像素区域之外设有配线区，所述配线区具有由扫描配线或数据配线构成的配线层，所述配线区上位于所述配线层的下方或上方设有与所述配线层绝缘的回字形修补线层；当所述扫描配线或数据配线断路时，在修补线层上，与该断路的扫描配线或数据配线的断路点的两侧均交叉的一段修补线被切断，并通过焊接方式在相应的交叉点与所述断路的扫描配线或数据配线电性连接。
  14. 根据权利要求13所述的液晶显示面板，其特征在于，所述配线层与所述修补线层之间设有绝缘层，所述配线层与所述修补线层通过所述绝缘层绝缘。
  15. 根据权利要求14所述的液晶显示面板，其特征在于，所述配线层中的扫描配线或数据配线为相互平行的线，所述修补线层中与所述扫描配线或数据配线平行的部分修补线与所述扫描配线或数据配线错位排列。
  16. 根据权利要求15所述的液晶显示面板，其特征在于，所述配线层中的扫描配线或数据配线远离像素区域的一端连接有驱动IC。
  17. 根据权利要求16所述的液晶显示面板，其特征在于，所述修补线层为一个，覆盖整个所述配线区。
  18. 根据权利要求16所述的液晶显示面板，其特征在于，所述TFT阵列基板上设有若干驱动IC，若干个所述修补线层以所述驱动IC为数量单位并排设置在所述配线区上。
  19. 根据权利要求13所述的液晶显示面板，其特征在于，所述修补线层由一根金属线弯折而成；或者，所述修补线层由若干根封闭的金属线嵌套而成。
  20. 一种液晶显示面板的配线修补方法，其特征在于，包括以下步骤：
    在液晶显示面板的显示区域之外的配线区上设置与配线层绝缘的修补线层，所述修补线层位于所述配线层的上方或下方；
    当所述扫描配线或数据配线断路时，将所述修补线层上与该断路的扫描配线或数据配线的断路点的两侧均交叉的一段修补线切断；
    通过焊接方式将所述切断的一段修补线在相应的交叉点与所述断路的扫描配线或数据配线电性连接。
PCT/CN2011/080371 2011-07-25 2011-09-29 Tft阵列基板、液晶显示面板及配线修补方法 Ceased WO2013013444A1 (zh)

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