WO2014110841A1 - 液晶显示面板亮点修补方法 - Google Patents

液晶显示面板亮点修补方法 Download PDF

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Publication number
WO2014110841A1
WO2014110841A1 PCT/CN2013/070860 CN2013070860W WO2014110841A1 WO 2014110841 A1 WO2014110841 A1 WO 2014110841A1 CN 2013070860 W CN2013070860 W CN 2013070860W WO 2014110841 A1 WO2014110841 A1 WO 2014110841A1
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WIPO (PCT)
Prior art keywords
layer
liquid crystal
crystal display
display panel
common wiring
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PCT/CN2013/070860
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English (en)
French (fr)
Inventor
郑文达
吴础任
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深圳市华星光电技术有限公司
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Application filed by 深圳市华星光电技术有限公司 filed Critical 深圳市华星光电技术有限公司
Priority to US13/817,784 priority Critical patent/US8986062B2/en
Publication of WO2014110841A1 publication Critical patent/WO2014110841A1/zh

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Classifications

    • 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
    • G02F1/1306—Details
    • G02F1/1309—Repairing; Testing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/21—Bonding by welding
    • B23K26/22—Spot welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/32—Bonding taking account of the properties of the material involved
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/32—Bonding taking account of the properties of the material involved
    • B23K26/323—Bonding taking account of the properties of the material involved involving parts made of dissimilar metallic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/32—Bonding taking account of the properties of the material involved
    • B23K26/324—Bonding taking account of the properties of the material involved involving non-metallic parts
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/08—Non-ferrous metals or alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/08—Non-ferrous metals or alloys
    • B23K2103/10—Aluminium or alloys thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/08—Non-ferrous metals or alloys
    • B23K2103/12—Copper or alloys thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/16—Composite materials, e.g. fibre reinforced
    • B23K2103/166—Multilayered materials
    • B23K2103/172—Multilayered materials wherein at least one of the layers is non-metallic

Definitions

  • the present invention relates to the field of liquid crystal display, and more particularly to a method for repairing a bright spot of a liquid crystal display panel. Background technique
  • Liquid crystal display has many advantages such as thin body, power saving, and no radiation, and has been widely used.
  • Most of the liquid crystal display devices on the market are backlight type liquid crystal displays, which include a liquid crystal display panel and a backlight module.
  • the working principle of the liquid crystal panel is to place liquid crystal molecules in two parallel glass substrates, control the liquid crystal molecules to change direction by energizing the circuit of the glass substrate, and refract the light of the backlight module to produce a picture.
  • the liquid crystal display panel generally includes a TFT (thin film transistor) substrate 100, a CF substrate 300 disposed opposite to the TFT substrate 100, and a liquid crystal 500 disposed between the TFT substrate 100 and the CF substrate 300.
  • the substrate 100 generally includes a substrate 102 and a thin film transistor array 104 formed on the substrate 102.
  • the thin film transistor array 104 is formed on the substrate 102 by a mask process.
  • pixels are often susceptible to Process contamination or electrostatic damage, causing line defects and pixel defects, so-called line defects mean a signal line is broken, and point defects are sub-pixels caused by abnormal short circuits or open circuits of thin film transistors ( Subpixel) defect.
  • Point defects can be divided into white defects, dark defects, and dull defects.
  • the so-called bright spots are bright even in the black screen, so the human eye is very sensitive to it and easy to identify. So it's best to patch the highlights into dark spots that are always dark, or at least to patch the highlights into dimly lit points.
  • the existing bright spot repairing method generally uses laser single-click welding at the intersection of the ITO layer 142 and the COM layer 146.
  • the high temperature generated by the laser causes the metal to melt, and then the transparent conductive
  • the (ITO) layer 142 and the second metal (metal 2) layer 144 are electrically connected to the common wiring (COM) layer 146, so that the bright spots become dark spots, and the bright spot compensation is completed.
  • the existing single-click welding if the welding point 700 is small, may not be repaired successfully, but if the welding point 700 is large, the contact area of the welding point 700 is SfSjrrA (where ri is the welding point radius, for welding)
  • the length of the point is relatively large, then the connection of the solder joint 700
  • the object of the present invention is to provide a bright spot repairing method for a liquid crystal display panel, which has multiple points of soldering, effectively improves the repair success rate, and has small contact resistance and improves repair quality.
  • the present invention provides a method for repairing a bright spot of a liquid crystal display panel, comprising the following steps:
  • Step 1 providing a laser repairing machine and a liquid crystal display panel having a bright spot to be repaired, wherein the liquid crystal display panel having a bright spot to be repaired comprises a substrate, a common wiring layer formed on the substrate, and a first insulation formed on the common wiring layer a layer, a metal layer formed on the first insulating layer, a second insulating layer formed on the metal layer, and a transparent conductive layer formed on the second insulating layer;
  • Step 2 Multi-point welding the common wiring layer, the metal layer and the transparent conductive layer corresponding to the bright spot position of the liquid crystal display panel with the spot to be repaired by the laser repairing machine, so that the common wiring layer and the metal corresponding to the positions of the soldering points are made.
  • the layer and the transparent conductive layer are electrically connected, respectively.
  • the substrate is a glass substrate.
  • the first and second insulating layers are silicon oxide layers.
  • the metal layer is an aluminum layer, a molybdenum layer or a copper layer.
  • the transparent conductive layer is an indium tin oxide layer.
  • the laser repairing machine performs multi-point welding on the common wiring layer, the metal layer and the transparent conductive layer by molten metal aluminum, molybdenum or copper.
  • the laser repairing machine includes a base, an operating platform mounted on the base, and a laser repairing head mounted on the base and disposed above the operating platform.
  • the present invention also provides a method for repairing a bright spot of a liquid crystal display panel, comprising the following steps: Step 1. Providing a laser repairing machine and a liquid crystal display panel having a bright spot to be repaired, wherein the liquid crystal display panel having a bright spot to be repaired comprises a substrate formed on a common wiring layer on the substrate, a first insulating layer formed on the common wiring layer, a metal layer formed on the first insulating layer, a second insulating layer formed on the metal layer, and a transparent layer formed on the second insulating layer Conductive layer
  • Step 2 Multi-point welding the common wiring layer, the metal layer and the transparent conductive layer corresponding to the bright spot position of the liquid crystal display panel with the spot to be repaired by the laser repairing machine, so that the common wiring layer and the metal corresponding to the positions of the soldering points are made.
  • the layer and the transparent conductive layer are electrically connected respectively;
  • the substrate is a glass substrate
  • the first and second insulating layers are silicon oxide layers;
  • the metal layer is an aluminum layer, a molybdenum layer or a copper layer;
  • the transparent conductive layer is an indium tin oxide layer
  • the laser repairing machine performs multi-point welding on the common wiring layer, the metal layer and the transparent conductive layer by molten metal aluminum, molybdenum or copper;
  • the laser repairing machine comprises a base, an operating platform mounted on the base, and a laser repairing head mounted on the base and disposed above the operating platform;
  • the liquid crystal display panel having the bright spot to be repaired is placed on the operation platform.
  • the bright spot repairing method of the liquid crystal display panel of the present invention performs multi-point soldering on the common wiring layer, the metal layer and the transparent conductive layer of the bright spot position of the liquid crystal display panel having the bright spot to be repaired, so that some soldering is required
  • the common wiring layer, the metal layer and the transparent conductive layer at the point position are electrically connected, respectively, which effectively improves the repair success rate, and can effectively reduce the contact resistance and improve the repair quality.
  • FIG. 1 is a schematic structural view of a conventional liquid crystal display panel
  • FIG. 2 is a schematic structural view of a conventional single-point soldering liquid crystal display panel
  • Figure 3 is a plan view of Figure 2;
  • FIG. 4 is a flow chart of a method for repairing a bright spot of a liquid crystal display panel according to the present invention
  • FIG. 5 is a schematic structural view of a liquid crystal display panel after multi-point soldering repair using the bright spot repairing method of the liquid crystal display panel of the present invention
  • Figure 6 is a plan view of Figure 5.
  • the present invention provides a method for repairing a bright spot of a liquid crystal display panel, which includes the following steps: Step 1.
  • a laser repairing machine (not shown) and a liquid crystal display panel 200 having a bright spot to be repaired are provided.
  • the laser repairing machine can be selected from any existing laser repairing machine, and includes a base, an operating platform mounted on the base, and a laser repairing head mounted on the base and disposed above the operating platform.
  • the liquid crystal display panel 200 having a bright spot to be repaired includes a substrate (not shown), a common wiring layer 20 formed on the substrate, a first insulating layer 22 formed on the common wiring layer 20, and a first insulating layer 22 formed on the first insulating layer 22
  • the substrate is a transparent substrate.
  • the substrate is a glass substrate; the first and second insulating layers 22 and 26 are silicon oxide layers; and the metal layer 24 is an aluminum layer and a molybdenum layer. Or a copper layer; the transparent conductive layer 28 is an indium tin oxide layer.
  • Step 2 The common wiring layer 20, the metal layer 24 and the transparent conductive layer 28 corresponding to the bright spot position of the liquid crystal display panel 200 having the bright spot to be repaired are multi-point welded by the laser repairing machine, so that the positions of the solder joints 400 are corresponding.
  • the common wiring layer 20, the metal layer 24, and the transparent conductive layer 28 are electrically connected, respectively.
  • the specific operation is: placing the liquid crystal display panel 200 having the bright spot to be repaired on the operation platform of the laser repairing machine, operating the laser repairing head of the laser repairing machine, and correspondingly highlighting the position of the liquid crystal display panel 200 having the bright spot to be repaired.
  • the common wiring layer 20, the metal layer 24, and the transparent conductive layer 28 are subjected to multi-point soldering.
  • the laser repairing machine performs multi-point welding of the common wiring layer 20, the metal layer 24 and the transparent conductive layer 28 by melting the corresponding metal, that is, when the metal layer 24 is an aluminum layer.
  • the laser repairing machine performs the multi-point welding of the common wiring layer 20, the metal layer 24 and the transparent conductive layer 28 by melting the metal aluminum, and similarly, when the metal layer 24 is a molybdenum layer, the laser repairing machine After the molybdenum is vaporized, the common wiring layer 20, the metal layer 24 and the transparent conductive layer 28 are multi-point welded.
  • the laser repairing machine passes the metal copper to make the copper gas. After the bonding, the common wiring layer 20, the metal layer 24, and the transparent conductive layer 28 are subjected to multi-point soldering.
  • the bright spot repairing method of the liquid crystal display panel of the present invention has more solder joints 400.
  • the remaining solder joints 400 can also electrically connect the common wiring layer 20, the metal layer 24 and the transparent conductive layer. 28, the repairing effect is effectively improved, and the contact resistance of the solder joint 400 of the present invention is relatively small compared to the existing single-click welding.
  • the radius of the welding point 400 is r 2
  • the solder joint of the present invention is compared to the single click soldering in the prior art.
  • the contact area of the solder joint is three times that of the solder joint of the prior art single-click soldering.
  • the contact resistance of the solder joint of the present invention is only the contact resistance of the solder joint of the single-point soldering in the prior art. In one part, the welding resistance is relatively small, which effectively improves the repair quality.
  • the bright spot repairing method of the liquid crystal display panel of the present invention performs multi-point soldering on the common wiring layer, the metal layer and the transparent conductive layer of the bright spot position of the liquid crystal display panel having the bright spot to be repaired, so that the solder joints are correspondingly
  • the common wiring layer, the metal layer and the transparent conductive layer of the position are respectively electrically connected, thereby effectively improving the repair success rate, and effectively reducing the contact resistance and improving the repairing port.

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Nonlinear Science (AREA)
  • Mechanical Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
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Abstract

一种液晶显示面板亮点修补方法包括：步骤1、提供激光修补机台及具有待修补亮点的液晶显示面板（200），所述具有待修补亮点的液晶显示面板（200）包括基板、形成于基板上的共用布线层（20）、形成于共用布线层（20）上的第一绝缘层（22）、形成于第一绝缘层（22）上的金属层（24）、形成于金属层（24）上的第二绝缘层（26）及形成于第二绝缘层（26）上的透明导电层（28）；步骤2、通过激光修补机台将对应具有待修补亮点的液晶显示面板（200）的亮点位置的共用布线层（20）、金属层（24）及透明导电层（28）进行多点焊接，使得对应该些焊接点位置的共用布线层（20）、金属层（24）及透明导电层（28）分别电性连接。该方法对亮点位置的共用布线层（20）、金属层（24）及透明导电层（28）进行多点焊接，有效提高修补成功率，且能有效降低接触电阻，提升修补品质。

Description

液晶显示面板亮点多补方法 技术领域
本发明涉及液晶显示领域， 尤其涉及一种液晶显示面板亮点修补方 法。 背景技术
液晶显示装置 （LCD, Liquid Crystal Display )具有机身薄、 省电、 无 辐射等众多优点， 得到了广泛的应用。 现有市场上的液晶显示装置大部分 为背光型液晶显示器， 其包括液晶显示面板及背光模组 （ backlight module ) 。 液晶面板的工作原理是在两片平行的玻璃基板中放置液晶分 子， 通过给玻璃基板的电路通电来控制液晶分子改变方向， 将背光模组的 光线折射出来产生画面。
请参阅图 1 , 所述液晶显示面板一般包括： TFT (薄膜晶体管）基板 100、 与 TFT基板 100相对贴合设置的 CF基板 300及设于 TFT基板 100 与 CF基板 300之间的液晶 500, TFT基板 100一般包括基板 102及形成 于基板 102上的薄膜晶体管阵列 104, 该薄膜晶体管阵列 104通过光罩制 程形成于基板 102 上， 在形成薄膜晶体管阵列 104 的制程中， 像素 ( pixel ) 常易受到制程污染或静电破坏， 造成线缺陷 （line defect )与点缺 陷 （pixel defect ) ， 所谓的线缺陷意指某信号线断路， 而点缺陷意指因薄 膜晶体管异常的短路或断路造成的子像素 （subpixel )缺陷。
点缺陷可分为亮点 （white defect ) 、 暗点 （dark defect ) 、 及微辉点 ( dull defect )等， 所谓亮点甚至在全黑画面时也是亮的， 所以人眼对它非 常敏感而易于辨认， 所以最好能把亮点修补成永远黑暗的暗点， 或者至少 把亮点修补成黯淡的微辉点。
请参阅图 2 及图 3 , 现有的亮点修补方法一般为在 ITO 层 142 与 COM层 146 叠交处通过激光单点击发焊接（welding ) , 激光产生的高温 使得金属融熔， 进而将透明导电 （ITO )层 142、 第二金属 （metal 2 )层 144 与共用布线 （COM )层 146 电性连接在一起， 进而使得亮点变成暗 点， 完成亮点爹补。
然而， 现有的单点击发焊接， 如果焊接点 700 较小， 可能修补不成 功， 但如果焊接点 700较大， 该焊接点 700 的接触面积为 SfSjrrA (其 中， ri为焊接点半径， 为焊接点的长度）相对较大， 则焊接点 700 的接 触电阻 （接触电阻与接触面积成反比， 其公式为： R= p L/S , 其中， p为 电阻率， L为厚度， S为接触面积）相对较大， 修补品质下降。 发明内容
本发明的目的在于提供一种液晶显示面板亮点修补方法， 其多点焊 接， 有效提高修补成功率， 且接触电阻较小， 提升修补品质。
为实现上述目的， 本发明提供一种液晶显示面板亮点修补方法， 包括 以下步骤：
步骤 1、 提供激光修补机台及具有待修补亮点的液晶显示面板， 所述 具有待修补亮点的液晶显示面板包括基板、 形成于基板上的共用布线层、 形成于共用布线层上的第一绝缘层、 形成于第一绝缘层上的金属层、 形成 于金属层上的第二绝缘层及形成于第二绝缘层上的透明导电层；
步骤 2、 通过激光修补机台将对应具有待修补亮点的液晶显示面板的 亮点位置的共用布线层、 金属层及透明导电层进行多点焊接， 使得对应该 些焊接点位置的共用布线层、 金属层及透明导电层分别电性连接。
所述基板为玻璃基板。
所述第一与第二绝缘层为氧化硅层。
所述金属层为铝层、 钼层或铜层。
所述透明导电层为氧化铟锡层。
所述步骤 2 中， 激光修补机台通过熔融金属铝、 钼或铜对共用布线 层、 金属层及透明导电层进行多点焊接。
所述激光修补机台包括基座、 安装于基座上的操作平台及安装于基座 上并设于操作平台上方的激光修补头。
修补时， 所述具有待修补亮点的液晶显示面板置于所述操作平台上。 本发明还提供一种液晶显示面板亮点修补方法， 包括以下步骤： 步骤 1、 提供激光修补机台及具有待修补亮点的液晶显示面板， 所述 具有待修补亮点的液晶显示面板包括基板、 形成于基板上的共用布线层、 形成于共用布线层上的第一绝缘层、 形成于第一绝缘层上的金属层、 形成 于金属层上的第二绝缘层及形成于第二绝缘层上的透明导电层；
步骤 2、 通过激光修补机台将对应具有待修补亮点的液晶显示面板的 亮点位置的共用布线层、 金属层及透明导电层进行多点焊接， 使得对应该 些焊接点位置的共用布线层、 金属层及透明导电层分别电性连接；
其中， 所述基板为玻璃基板；
其中， 所述第一与第二绝缘层为氧化硅层； 其中， 所述金属层为铝层、 钼层或铜层；
其中， 所述透明导电层为氧化铟锡层；
其中， 所述步骤 2 中， 激光修补机台通过熔融金属铝、 钼或铜对共用 布线层、 金属层及透明导电层进行多点焊接；
其中， 所述激光修补机台包括基座、 安装于基座上的操作平台及安装 于基座上并设于操作平台上方的激光修补头；
其中， 修补时， 所述具有待修补亮点的液晶显示面板置于所述操作平 台上。
本发明的有益效果： 本发明的液晶显示面板亮点修补方法， 通过对具 有待修补亮点的液晶显示面板的亮点位置的共用布线层、 金属层及透明导 电层进行多点焊接， 使得对应该些焊接点位置的共用布线层、 金属层及透 明导电层分别电性连接， 有效提高修补成功率， 且能有效降低接触电阻， 提升修补品质。
为了能更进一步了解本发明的特征以及技术内容， 请参阅以下有关本 发明的详细说明与附图， 然而附图仅提供参考与说明用， 并非用来对本发 明加以限制。 附图说明
下面结合附图， 通过对本发明的具体实施方式详细描述， 将使本发明 的技术方案及其它有益效果显而易见。
附图中，
图 1为现有的液晶显示面板的结构示意图；
图 2为现有的单点焊接的液晶显示面板的结构示意图；
图 3为图 2的俯视图；
图 4为本发明液晶显示面板亮点修补方法的流程图；
图 5 为用本发明液晶显示面板亮点修补方法进行多点焊接修补后的液 晶显示面板的结构示意图；
图 6为图 5的俯视图。 具体实施方式
为更进一步阐述本发明所采取的技术手段及其效果， 以下结合本发明 的优选实施例及其附图进行详细描述。
请参阅图 4至图 6, 本发明提供一种液晶显示面板亮点修补方法， 包 括以下步骤： 步骤 1、 提供激光修补机台 （未图示）及具有待修补亮点的液晶显示 面板 200。
所述激光修补机台可选用现有的任何型号的激光修补机台， 其包括基 座、 安装于基座上的操作平台及安装于基座上并设于操作平台上方的激光 修补头。
所述具有待修补亮点的液晶显示面板 200 包括基板（未图示） 、 形成 于基板上的共用布线层 20、 形成于共用布线层 20上的第一绝缘层 22、 形 成于第一绝缘层 22上的金属层 24、 形成于金属层 24上的第二绝缘层 26 及形成于第二绝缘层 26上的透明导电层 28。
其中， 所述基板为透明基板， 在本实施例中， 所述基板为玻璃基板； 所述第一与第二绝缘层 22、 26为氧化硅层； 所述金属层 24为铝层、 钼层 或铜层； 所述透明导电层 28为氧化铟锡层。
步骤 2、 通过激光修补机台将对应具有待修补亮点的液晶显示面板 200的亮点位置的共用布线层 20、 金属层 24及透明导电层 28进行多点焊 接， 使得对应该些焊接点 400位置的共用布线层 20、 金属层 24及透明导 电层 28分别电性连接。
具体操作为： 将具有待修补亮点的液晶显示面板 200置于激光修补机 台的操作平台上， 操作激光修补机台的激光修补头， 对具有待修补亮点的 液晶显示面板 200的对应亮点位置的共用布线层 20、 金属层 24及透明导 电层 28进行多点焊接。
优选的， 对应不同金属层 24 的材料， 激光修补机台通过熔融相应的 金属实现对共用布线层 20、 金属层 24及透明导电层 28 进行多点焊接， 即， 当金属层 24 为铝层时， 激光修补机台通过融金属铝， 使得铝气化后 对共用布线层 20、 金属层 24及透明导电层 28进行多点焊接， 同理， 当金 属层 24 为钼层时， 激光修补机台通过融金属钼， 使得钼气化后对共用布 线层 20、 金属层 24及透明导电层 28进行多点焊接， 当金属层 24为铜层 时， 激光修补机台通过融金属铜， 使得铜气化后对共用布线层 20、 金属层 24及透明导电层 28进行多点焊接。
本发明的液晶显示面板亮点修补方法， 其焊接点 400较多， 当其中一 个或几个焊接点 400失效时， 其余焊接点 400还可以电性连接共用布线层 20、 金属层 24及透明导电层 28, 有效提高修补效果， 且， 与现有的单点 击发焊接相比， 本发明的焊接点 400的接触电阻相对较小。
以九个焊接点 400 为例具体计算说明， 设一个焊接点 400 的半径为 r2, 那么一个焊接点 400的接触面积 S2=27ir2t2 (其中， r2为焊接点半径， t2 为焊接点的长度） ， 相比现有技术中的单点击发焊接， 本发明的焊接点
400的半径！"2=1/31^ (请参阅图 3 ) , 那么本发明的九个焊接点 400的总接 触面积为 S=9*S2=9*27ir2t2=9*2 ( \βχχ ) t2=3*27ir1t2=3S1 (在同一液晶显示 面板中， ti=t2 ) , 那么， 在采用同种金属对同一具有待修补亮点的液晶显 示面板进行修补时， 本发明的焊接点的接触面积为现有技术单点击发焊接 的焊接点的接触面积的三倍， 那么， 本发明的焊接点的接触电阻只为现有 技术中单点焊接的焊接点的接触电阻的三分之一， 焊接电阻相对较小， 有 效提升修补品质。
综上所述， 本发明的液晶显示面板亮点修补方法， 通过对具有待修补 亮点的液晶显示面板的亮点位置的共用布线层、 金属层及透明导电层进行 多点焊接， 使得对应该些焊接点位置的共用布线层、 金属层及透明导电层 分别电性连接， 有效提高修补成功率， 且能有效降低接触电阻， 提升修补 口 臾
以上所述， 对于本领域的普通技术人员来说， 可以根据本发明的技术 方案和技术构思作出其他各种相应的改变和变形， 而所有这些改变和变形 都应属于本发明权利要求的保护范围。

Claims

权 利 要 求
1、 一种液晶显示面板亮点修补方法， 包括以下步骤：
步骤 1、 提供激光修补机台及具有待修补亮点的液晶显示面板， 所述 具有待修补亮点的液晶显示面板包括基板、 形成于基板上的共用布线层、 形成于共用布线层上的第一绝缘层、 形成于第一绝缘层上的金属层、 形成 于金属层上的第二绝缘层及形成于第二绝缘层上的透明导电层；
步骤 2、 通过激光修补机台将对应具有待修补亮点的液晶显示面板的 亮点位置的共用布线层、 金属层及透明导电层进行多点焊接， 使得对应该 些焊接点位置的共用布线层、 金属层及透明导电层分别电性连接。
2、 如权利要求 1 所述的液晶显示面板亮点修补方法， 其中， 所述基 板为玻璃基板。
3、 如权利要求 1 所述的液晶显示面板亮点修补方法， 其中， 所述第 一与第二绝缘层为氧化硅层。
4、 如权利要求 1 所述的液晶显示面板亮点修补方法， 其中， 所述金 属层为铝层、 钼层或铜层。
5、 如权利要求 1 所述的液晶显示面板亮点修补方法， 其中， 所述透 明导电层为氧化铟锡层。
6、 如权利要求 4 所述的液晶显示面板亮点修补方法， 其中， 所述步 骤 2 中， 激光修补机台通过熔融金属铝、 钼或铜对共用布线层、 金属层及 透明导电层进行多点焊接。
7、 如权利要求 1 所述的液晶显示面板亮点修补方法， 其中， 所述激 光修补机台包括基座、 安装于基座上的操作平台及安装于基座上并设于操 作平台上方的激光修补头。
8、 如权利要求 7 所述的液晶显示面板亮点修补方法， 其中， 修补 时， 所述具有待修补亮点的液晶显示面板置于所述操作平台上。
9、 一种液晶显示面板亮点修补方法， 包括以下步骤：
步骤 1、 提供激光修补机台及具有待修补亮点的液晶显示面板， 所述 具有待修补亮点的液晶显示面板包括基板、 形成于基板上的共用布线层、 形成于共用布线层上的第一绝缘层、 形成于第一绝缘层上的金属层、 形成 于金属层上的第二绝缘层及形成于第二绝缘层上的透明导电层；
步骤 2、 通过激光修补机台将对应具有待修补亮点的液晶显示面板的 亮点位置的共用布线层、 金属层及透明导电层进行多点焊接， 使得对应该 些焊接点位置的共用布线层、 金属层及透明导电层分别电性连接； 其中， 所述基板为玻璃基板；
其中， 所述第一与第二绝缘层为氧化硅层；
其中， 所述金属层为铝层、 钼层或铜层；
其中， 所述透明导电层为氧化铟锡层；
其中， 所述步骤 2 中， 激光修补机台通过熔融金属铝、 钼或铜对共用 布线层、 金属层及透明导电层进行多点焊接；
其中， 所述激光修补机台包括基座、 安装于基座上的操作平台及安装 于基座上并设于操作平台上方的激光修补头；
其中， 修补时， 所述具有待修补亮点的液晶显示面板置于所述操作平 台上。
PCT/CN2013/070860 2013-01-18 2013-01-23 液晶显示面板亮点修补方法 WO2014110841A1 (zh)

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CN101165904A (zh) * 2006-10-19 2008-04-23 中华映管股份有限公司 像素结构
US20100238386A1 (en) * 2009-03-18 2010-09-23 Hsueh-Min Yin Display panel and method of repairing bright point thereof
CN102495502A (zh) * 2011-11-18 2012-06-13 昆山龙腾光电有限公司 液晶显示装置及其像素修补方法

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JP2004054069A (ja) * 2002-07-23 2004-02-19 Advanced Display Inc 表示装置及び表示装置の断線修復方法
CN100399115C (zh) * 2006-07-27 2008-07-02 友达光电股份有限公司 用以修补显示面板亮点的方法及其机器

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CN101165904A (zh) * 2006-10-19 2008-04-23 中华映管股份有限公司 像素结构
US20100238386A1 (en) * 2009-03-18 2010-09-23 Hsueh-Min Yin Display panel and method of repairing bright point thereof
CN102495502A (zh) * 2011-11-18 2012-06-13 昆山龙腾光电有限公司 液晶显示装置及其像素修补方法

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