WO2012171282A1 - 液晶显示器的静电放电保护装置 - Google Patents

液晶显示器的静电放电保护装置 Download PDF

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Publication number
WO2012171282A1
WO2012171282A1 PCT/CN2011/080320 CN2011080320W WO2012171282A1 WO 2012171282 A1 WO2012171282 A1 WO 2012171282A1 CN 2011080320 W CN2011080320 W CN 2011080320W WO 2012171282 A1 WO2012171282 A1 WO 2012171282A1
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WIPO (PCT)
Prior art keywords
electrostatic
protection device
conductor
width
data line
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PCT/CN2011/080320
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English (en)
French (fr)
Inventor
李芝娴
许哲豪
Original Assignee
深圳市华星光电技术有限公司
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Priority to US13/380,877 priority Critical patent/US8836623B2/en
Publication of WO2012171282A1 publication Critical patent/WO2012171282A1/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
    • G02F1/133—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
    • G02F1/136204—Arrangements to prevent high voltage or static electricity failures
    • 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
    • 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
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1345—Conductors connecting electrodes to cell terminals

Definitions

  • the present invention relates to the field of liquid crystal display technologies, and in particular, to an electrostatic discharge protection device for a liquid crystal display. Background technique
  • a liquid crystal display panel is mainly composed of a liquid crystal display panel and a backlight module.
  • the liquid crystal display panel mainly comprises an array substrate, a color filter substrate and a liquid crystal layer sandwiched between the two substrates.
  • the array substrate comprises a pixel area composed of an array of pixels.
  • the array substrate may generate static electricity in every process in the manufacturing process.
  • the static electricity in the array substrate accumulates to a certain extent, the pixel area is often damaged by Electro-Static discharge (ESD).
  • ESD Electro-Static discharge
  • the size of the array substrate is small, the static electricity accumulation is relatively small, and the probability of electrostatic damage caused by ESD is low or negligible, but as the size of the array substrate increases, the electrostatic damage caused by ESD increases. The more serious it is, the more its ESD static protection is.
  • a common electrostatic protection measure is to set the ends of the scanning line 101 and the data line 102 to the tip end in the peripheral area of the pixel area, respectively, and to set the short path 103 corresponding to the tip end.
  • the short-circuit line 103 can be electrostatically discharged through the scanning line 101 and the tip end of the data line end, thereby preventing excessive accumulation of static electricity in the array substrate, and protecting the pixel region of the array substrate. Damaged.
  • the technical problem to be solved by the present invention is to provide an electrostatic discharge protection device for a liquid crystal display, which can effectively reduce ESD electrostatic damage in a pixel region.
  • the present invention provides an electrostatic discharge protection device for a liquid crystal display, wherein the liquid crystal display includes a plurality of data lines and scan lines arranged to cross each other, and a diameter larger than a diameter is set at the end of the data lines and the scan lines.
  • a circular conductor having a width of the data line and the scan line; a recess disposed around the circular conductor in a non-contact manner at a periphery of the circular conductor, the common conductive metal of the groove and the periphery
  • the layers are connected to divert static electricity at the data lines and scan lines.
  • the present invention also provides an electrostatic discharge protection device for a liquid crystal display, the liquid crystal display comprising a plurality of data lines and scan lines arranged to cross each other, and a width greater than the data lines and scanning is disposed at the end of the data lines and the scan lines a discharge extension portion of the line width; an electrostatic conductive portion that closely surrounds the discharge expansion portion at a short distance without contact, and the electrostatic conductive portion is connected to a common common conductive metal layer to dissipate the Static electricity at the data lines and scan lines.
  • the discharge expansion portion is a circular conductive body having a diameter larger than a data line and a scan line width connected thereto, and the electrostatic conductive portion is a groove that can accommodate the circular electric conductor at a close distance without contact.
  • the discharge expansion portion is an elliptical conductor having a diameter larger than a data line to which it is connected and a width of the scan line
  • the electrostatic conductive portion is a groove that can accommodate the elliptical conductor at a close distance without contact.
  • the discharge expanding portion is a polygonal electric conductor having a width larger than a data line to which it is connected and a scanning line line width
  • the electrostatic conductive portion is a groove that can accommodate the polygonal electric conductor at a close distance without contact.
  • the main body of the discharge expansion portion is a circular electric conductor having a diameter larger than a data line to which it is connected and a width of the scanning line line, and the circular conductive outer circumference is provided with a length much smaller than the diameter of the circular electric conductor.
  • a spur is provided on the main body of the discharge expansion portion.
  • the main body of the discharge expanding portion is a polygonal electric conductor having a width larger than a data line to which it is connected and a width of the scanning line line, and a plurality of spurs having a length much smaller than a width of the polygonal electric conductor are disposed on the outer circumference of the polygonal electric conductor.
  • the electrostatic conductive portion is a groove on the inner side including one or more protrusions that can accommodate the expansion portion at a close distance without contact.
  • the electrostatic conductive portion is an electric conductor including one or more recesses that can receive the discharge expansion portion at a close distance without contact, and the electric conductor is connected with a common common conductive metal layer to dissipate static electricity.
  • the common conductive metal layer is a bulk metal layer that surrounds the periphery of the chip.
  • the present invention has the following advantageous effects: since a discharge expansion portion having a width larger than a data line and a scan line width connected thereto is provided at the end of the data line and the scanning line, and a close-around surrounding is provided at a periphery of the discharge expansion portion without contact
  • the electrostatic conductive portion of the extension portion increases the discharge capability of the data line and the end of the scanning line, can provide multi-point discharge static current and can withstand high electrostatic current passing, effectively illuminate the electrostatic current in the pixel region, and protect the metal in the pixel region. Traces are not destroyed by large electrostatic currents, improving product yield.
  • FIG. 1 is a schematic view of a conventional electrostatic protection device
  • Figure 2 is a schematic structural view showing a first embodiment of an electrostatic discharge protection device for a liquid crystal display according to the present invention
  • Figure 3 is a schematic structural view of a unit of the electrostatic discharge protection device of Figure 2;
  • Figure 4 is a schematic structural view showing a second embodiment of an electrostatic discharge protection device for a liquid crystal display according to the present invention.
  • Fig. 5 is a view showing the configuration of a third embodiment of the electrostatic discharge protection device for a liquid crystal display according to the present invention. detailed description
  • the traces inside the active area are weaker than the traces outside the AA area, and are more susceptible to ESD damage. Therefore, in the embodiment of the present invention, the end of the data line and the scan line are disposed outside the AA area as a discharge extension having a width greater than the width of the data line and the scan line (for example, the discharge extension can be designed as a specific pattern 1) shown in FIG. 2, and at the same time, an electrostatic conductive portion (for example, a pattern 2 corresponding to the pattern 1 design in FIG. 2) that can closely surround the discharge expansion portion without contact is provided around the discharge expansion portion.
  • a discharge extension having a width greater than the width of the data line and the scan line
  • the distance between the discharge expansion portion and the electrostatic conductive portion can be appropriately designed, so that the static electricity can be diverted from multiple points, and the translation can be improved. Efficiency, and can withstand higher electrostatic currents.
  • the pattern 1 can be replaced by other specific shapes, such as an ellipse, a square, a polygon, etc., under the condition that the width thereof is larger than the width of the data line and the scanning line.
  • FIG. 3 is a structural diagram of a unit of the electrostatic discharge protection device shown in FIG. 2 .
  • the liquid crystal display (not shown) includes a plurality of data lines and scan lines 1 arranged to cross each other, and a discharge extension portion having a width greater than a line width of the data lines and the scan lines 1 is disposed at the ends of the data lines and the scan lines 1.
  • a peripheral portion of the discharge expansion portion 10 is provided with an electrostatic conductive portion 20 that closely surrounds the discharge expansion portion 10 without contact, and the electrostatic conductive portion 20 is connected to a common common conductive metal layer to circumscribe the data line And static electricity at scan line 1.
  • the common conductive metal layer is a large metal layer surrounding the chip.
  • the specific shape and position of the discharge expansion portion 10 and the electrostatic conductive portion 20 in the embodiment of the present invention may be variously selected as long as it meets the requirements of increasing the electrostatic current release point and increasing the electrostatic current capacity tolerance capability;
  • the selection of the distance between the extension portion 10 and the electrostatic conductive portion 20 is also based on the actual purpose of achieving electrostatic discharge.
  • the discharge expansion portion 10 may be a circular or elliptical conductor having a width greater than a line width of the data line and the scan line, and the electrostatic conductive portion 20 may correspondingly accommodate the circle or the ellipse at a close distance without contact. 1HJ slot for round conductors.
  • the electrically expanded portion 10 can also be a polygonal conductor having a width greater than a line width of the data line and the scan line, and the electrostatic conductive portion 20 can correspond to a groove that closely accommodates the polygonal conductor in a contactless manner. .
  • the shape and size of the discharge expansion portion 10 do not have to be It is completely consistent. Because some specific positions require higher electrostatic discharge capability, it can be adjusted appropriately. Correspondingly, the shape and size of the electrostatic conductive portion 20 are also designed as long as the corresponding discharge expansion is matched with 10 parts. Just fine.
  • the discharge expansion portion 10 may include a discharge expansion portion main body 100 and a plurality of spurs 102 surrounding the main body 100, the discharge expansion portion main body 100 being a circular conductive having a diameter larger than a line width of the data line and the scanning line 1
  • the body is provided with a plurality of spurs 102 having a length much smaller than the diameter of the circular conductor on the outer circumference of the circular conductor.
  • the discharge expander body 100 may also be a polygonal conductor having a width greater than a line width of the data line and the scan line 1 , and a plurality of spurs 102 having a length much smaller than the width of the polygonal conductor are disposed on the outer circumference of the polygonal conductor. .
  • the electrostatically conductive portion 20 may be a groove on the inner side including one or more protrusions 200 that can accommodate the electrically expanded portion 10 in close contact without contact.
  • Fig. 5 it is a schematic structural view of a third embodiment of the electrostatic discharge protection device of the liquid crystal display of the present invention.
  • the number and size of the spurs 102 disposed around the discharge expansion portion main body 100 may not necessarily match the number and size of the protrusions 200 on the inner side of the electrostatic conductive portion 20, and the spur 102 of the discharge expansion portion 10 is dense and small, and the electrostatic conductive portion
  • the protrusions 20 of 20 are relatively large and thin.
  • the electrostatic conductive portion 20 may include one or more electrical conductors that can receive the recess of the electrical extension portion 10 at a close distance without contact, and the electrical conductor is connected to the peripheral metal common electrode to dissipate static electricity.
  • the entire conductive portion 20 may be made of the same material or different materials, and may be integrally molded or separately formed. At the same time, the material selection of the data line and the scanning line 1, the discharge expanding portion 10, and the electrostatic conductive portion 20 are not necessarily the same.
  • a discharge expansion portion having a width larger than a data line and a scan line width connected thereto is disposed at the end of the data line and the scan line, and is disposed in a non-contact manner at a periphery of the discharge expansion portion
  • the electrostatic conductive portion surrounding the extended portion at a short distance increases the discharge capability of the data line and the end of the scanning line, realizes multi-point translation and discharge current, and can withstand high current passing, effectively illuminating the electrostatic current in the pixel region, and protecting the pixel region.
  • Metal traces are not destroyed by large electrostatic currents, improving product yield.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Elimination Of Static Electricity (AREA)

Abstract

一种液晶显示器的静电放电保护装置，所述液晶显示器包括相互交叉排列的多条数据线和扫描线（1），在所述数据线和扫描线（1）末端设置宽度大于所述数据线和扫描线（1）线宽的放电扩展部（10）；在所述放电扩展部（10）外围设置有不接触地近距离环绕所述放电扩展部（10）的静电导电部（20），所述静电导电部（20）与外围的公共导电金属层连接以疏导所述数据线和扫描线（1）处的静电。本发明可以极大地降低像素区的ESD静电伤害。

Description

液晶显示器的静电放电保护装置 本申请要求于 2011年 6月 17日提交中国专利局、 申请号为 201110163885.3、 发明名称为 "液晶显示器的静电放电保护装置" 的中国专利申请的优先权， 其 全部内容通过引用结合在本申请中。 技术领域
本发明涉及液晶显示器技术领域， 尤其涉及一种液晶显示器的静电放电保 护装置。 背景技术
液晶显示器具有轻、 薄、 低耗电等优点， 被广泛应用于计算机、 移动电话 及个人数字助理等现代化信息设备。 一般液晶显示器主要由一液晶显示面板与 一背光模块组装而成， 而液晶显示面板主要包括阵列基板、 彩膜基板及夹于两 基板之间的液晶层。 其中， 阵列基板包括由像素阵列组成的像素区。
通常， 阵列基板在制作过程中的每一工序都有可能产生静电， 当阵列基板 中的静电累积到一定程度， 常常会因静电译放 ( Electro-Static discharge, ESD ) 而造成像素区被打伤， 当阵列基板的尺寸较小时，其静电累积相对较小， 因 ESD 造成的静电伤害发生概率低或可被忽略， 但是随着阵列基板尺寸的增大， 其因 ESD造成的静电伤害就会越来越严重， 故， 其 ESD静电防护显得尤为重要。
如图 1 所示， 在现有技术中， 常用的静电防护措施为， 在像素区的外围区 域， 分别将扫描线 101和数据线 102的末端均设置成尖端， 并对应尖端设置短 路线 103。 当阵列基板中的静电累积到一定程度时， 可通过扫描线 101和数据线 末端的尖端向短路线 103进行静电译放， 从而防止阵列基板中的静电过多积累， 保护阵列基板的像素区不受损害。
然而， 随着阵列基板尺寸的增大， 其在瞬间累积的静电可能非常巨大， 显 然， 现有技术中， 仅将数据线和扫描线末端制作成尖端之方式（即 "单点" 之 方式）， 无法在瞬间有效地疏导累积的大量静电， 进一步地， 亦无法承受较高 之静电电流经过。
鉴于上述， 现有技术之方案无法在瞬间有效地疏导阵列基板在瞬间累积的 大量静电， 使得阵列基板的像素区仍然会因 ESD而造成静电伤害
发明内容
本发明所要解决的技术问题在于， 提供一种液晶显示器的静电放电保护装 置， 可以有效地降低像素区的 ESD静电伤害。
为了解决上述技术问题， 本发明提供了一种液晶显示器的静电放电保护装 置， 所述液晶显示器包括相互交叉排列的多条数据线和扫描线， 在所述数据线 和扫描线末端设置直径大于所述数据线和扫描线线宽的圓形导电体； 在所述圓 形导电体外围设置有不接触地近距离环绕所述圓形导电体的凹槽， 所述凹槽与 外围的公共导电金属层连接以疏导所述数据线和扫描线处的静电。
本发明还提供了一种液晶显示器的静电放电保护装置， 所述液晶显示器包 括相互交叉排列的多条数据线和扫描线， 在所述数据线和扫描线末端设置宽度 大于所述数据线和扫描线线宽的放电扩展部； 在所述放电扩展部外围设置有不 接触地近距离环绕所述放电扩展部的静电导电部， 所述静电导电部与外围的公 共导电金属层连接以疏导所述数据线和扫描线处的静电。
其中， 所述放电扩展部为直径大于其连接的数据线和扫描线线宽的圓形导 电体， 所述静电导电部为可不接触地近距离容纳所述圓形导电体的凹槽。
或者， 所述放电扩展部为直径大于其连接的数据线和扫描线线宽的椭圓形 导电体， 所述静电导电部为可不接触地近距离容纳所述椭圓形导电体的凹槽。
或者， 所述放电扩展部为宽度大于其连接的数据线和扫描线线宽的多边形 导电体， 所述静电导电部为可不接触地近距离容纳所述多边形导电体的凹槽。
或者， 所述放电扩展部主体为直径大于其连接的数据线和扫描线线宽的圓 形导电体， 且所述圓形导电体外周上设置有长度远小于所述圓形导电体直径的 多个突刺。
或者， 所述放电扩展部主体为宽度大于其连接的数据线和扫描线线宽的多 边形导电体， 且所述多边形导电体外周上设置有长度远小于所述多边形导电体 宽度的多个突刺。
进一步地， 所述静电导电部为内侧包括一个或多个突起的可不接触地近距 离容纳所述扩展部的凹槽。 同时， 所述静电导电部为包括一个或多个可不接触地近距离容纳所述放电 扩展部的凹槽的导电体， 所述导电体与外围的公共导电金属层连接以疏导静电。
所述公共导电金属层为环绕在芯片四周的大块金属层。
本发明具有如下有益效果： 由于在数据线和扫描线末端设置宽度大于其连 接的数据线和扫描线线宽的放电扩展部， 并在所述放电扩展部外围设置有不接 触地近距离环绕所述扩展部的静电导电部， 增大了数据线和扫描线末端的放电 能力， 能提供多点译放静电电流且可承受高静电电流经过， 有效地疏导像素区 静电电流， 保护像素区的金属走线不被大静电电流所破坏， 提高产品良率。 附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案， 下面将对实施 例或现有技术描述中所需要使用的附图作简单地介绍， 显而易见地， 下面描述 中的附图仅仅是本发明的一些实施例， 对于本领域普通技术人员来讲， 在不付 出创造性劳动性的前提下， 还可以根据这些附图获得其他的附图。
图 1是现有的一种静电防护装置的示意图；
图 2是本发明中的液晶显示器的静电放电保护装置的第一实施例结构示意 图；
图 3是图 2中静电放电保护装置的一个单元的结构示意图；
图 4是本发明中的液晶显示器的静电放电保护装置的第二实施例结构示意 图；
图 5是本发明中的液晶显示器的静电放电保护装置的第三实施例结构示意 图。 具体实施方式
下面将结合本发明实施例中的附图， 对本发明实施例中的技术方案进行清 楚、 完整地描述， 显然， 所描述的实施例仅仅是本发明一部分实施例， 而不是 全部的实施例。 基于本发明中的实施例， 本领域普通技术人员在没有做出创造 性劳动前提下所获得的所有其他实施例， 都属于本发明保护的范围。
通常， 液晶面板 ΑΑ区 （active area, 液晶面板的显示区） 内部的走线（例 如， 数据线和扫描线等）较 AA区外部的走线脆弱， 更易被 ESD静电损伤。 因此， 本发明实施例中， 通过在 AA 区外部， 将数据线和扫描线的末端设 置成一宽度大于该数据线和扫描线线宽的放电扩展部 （例如， 可将该放电扩展 部设计成如图 2所示的具体图案 1 ), 同时， 在该放电扩展部外围设置可不接触 地近距离环绕该放电扩展部的静电导电部 （例如， 在图 2中对应于图案 1设计 的图案 2 ), 并将该静电导电部与外围的公共导电金属层连接， 以使该放电扩展 部与该静电导电部之间实现从多点疏导所述数据线和扫描线处的静电。 其中， 可根据实际情况（例如， 有害静电的大小， 材料的导电能力等）适当设计放电 扩展部和静电导电部之间的距离， 就可以实现二者之间从多点疏导静电， 提高 译放效率， 并可承受较高静电电流的译放。
其中， 该图案 1 在满足其宽度大于该数据线和扫描线线宽的条件下， 可以 用其他多种具体的形状替代， 如椭圓形、 方形、 多边形等。
请参见图 3 , 其是图 2所示静电放电保护装置的一个单元的结构示意图。 所 述液晶显示器（图未示）包括相互交叉排列的多条数据线和扫描线 1 , 在所述数 据线和扫描线 1末端设置一宽度大于该数据线和扫描线 1线宽的放电扩展部 10, 在所述放电扩展部 10外围设置有不接触地近距离环绕所述放电扩展部 10的静 电导电部 20,所述静电导电部 20与外围的公共导电金属层连接以疏导所述数据 线和扫描线 1 处的静电。 其中， 所述公共导电金属层为环绕在芯片四周的大块 金属层。 如图 3 所示该单个单元结构的重复排列可形成液晶显示器的静电放电 保护装置。
本发明实施例中的放电扩展部 10和静电导电部 20的具体形状和位置可以 有多种选择， 只要其符合增加静电电流译放点和提高静电电流量承受能力的要 求即可； 同时， 放电扩展部 10和静电导电部 20二者之间的距离的选择， 也以 实际能达到静电译放的目的为准。
比如， 放电扩展部 10可为宽度大于数据线和扫描线 1线宽的圓形或椭圓形 导电体， 所述静电导电部 20则可对应为不接触地近距离容纳所述圓形或椭圓形 导电体的 1HJ槽。
当然， 所 丈电扩展部 10也可为宽度大于数据线和扫描线 1线宽的多边形 导电体， 所述静电导电部 20则可对应为不接触地近距离容纳所述多边形导电体 的凹槽。
进一步地， 在同一液晶显示器中， 放电扩展部 10的形状和大小也不一定要 完全一致， 由于某些特定的位置其对静电译放能力要求更高， 可以适当进行调 整； 对应地， 静电导电部 20的形状和大小的设计也是， 只要其与之配合的放电 扩展 10部对应即可。
请参见图 4,其是本发明液晶显示器的静电放电保护装置的第二实施例结构 示意图。 为了进一步提高静电译放能力， 放电扩展部 10可包括放电扩展部主体 100和围绕主体 100的多个突刺 102, 该放电扩展部主体 100为直径大于数据线 和扫描线 1 线宽的圓形导电体， 而在圓形导电体外周上设置有长度远小于所述 圓形导电体直径的多个突刺 102。
当然， 放电扩展部主体 100也可为为宽度大于数据线和扫描线 1线宽的多 边形导电体， 且所述多边形导电体外周上设置有长度远小于所述多边形导电体 宽度的多个突刺 102。
对应地， 静电导电部 20可为内侧包括一个或多个突起 200的可不接触地近 距离容纳所 丈电扩展部 10的凹槽。 如图 5所示， 其是本发明中的液晶显示器 的静电放电保护装置的第三实施例结构示意图。 在设计时， 围绕放电扩展部主 体 100设置的突刺 102的数量和大小与静电导电部 20内侧的突起 200的数量和 大小可不一定匹配， 放电扩展部 10的突刺 102密而小， 而静电导电部 20的突 起 200则比较大而稀』琉。
其中， 静电导电部 20可以包括一个或多个可不接触地近距离容纳所 文电 扩展部 10的凹槽的导电体，所述导电体与外围的金属公共电极连接以疏导静电。
需要说明的是， 在上述本发明的实施例中， 诸如数据线和扫描线 1 与放电 扩展部 10之间、 放电扩展部主体 100与突刺 102之间， 静电导电部 20上的突 起 200与静电导电部 20整体之间， 可以采用同一材质， 也可以是不同材质， 可 以是一体成型制造， 也可以是分开成型。 同时数据线和扫描线 1、 放电扩展部 10、 静电导电部 20三者的材质选择也不一定要完全相同。
本发明实施例具有如下有益效果： 由于在数据线和扫描线末端设置一宽度 大于其连接的数据线和扫描线线宽的放电扩展部， 并在在所述放电扩展部外围 设置有不接触地近距离环绕所述扩展部的静电导电部， 增大了数据线和扫描线 末端的放电能力， 实现多点译放电流且可承受高电流经过， 有效地疏导像素区 静电电流， 保护像素区的金属走线不被大静电电流所破坏， 提高产品良率。
以上所揭露的仅为本发明一种较佳实施例而已， 当然不能以此来限定本发 明之权利范围， 因此依本发明权利要求所作的等同变化， 仍属本发明所涵盖的 范围。

Claims

1、 一种液晶显示器的静电放电保护装置， 所述液晶显示器包括相互交叉排 列的多条数据线和扫描线， 其特征在于，
在所述数据线和扫描线末端设置宽度大于所述数据线和扫描线线宽的放电 扩展部；
在所述放电扩展部外围设置有不接触地近距离环绕所述放电扩展部的静电 导电部， 所述静电导电部与外围的公共导电金属层连接以疏导所述数据线和扫 描线处的静电。
2、 如权利要求 1所述的静电放电保护装置， 其特征在于， 所述放电扩展部 为直径大于其连接的数据线和扫描线线宽的圓形导电体， 所述静电导电部为可 不接触地近距离容纳所述圓形导电体的凹槽。
3、 如权利要求 1所述的静电放电保护装置， 其特征在于， 所述放电扩展部 为直径大于其连接的数据线和扫描线线宽的椭圓形导电体， 所述静电导电部为 可不接触地近距离容纳所述椭圓形导电体的凹槽。
4、 如权利要求 1所述的静电放电保护装置， 其特征在于， 所述放电扩展部 为宽度大于其连接的数据线和扫描线线宽的多边形导电体， 所述静电导电部为 可不接触地近距离容纳所述多边形导电体的凹槽。
5、 如权利要求 1所述的静电放电保护装置， 其特征在于， 所述放电扩展部 主体为直径大于其连接的数据线和扫描线线宽的圓形导电体， 且所述圓形导电 体外周上设置有长度远小于所述圓形导电体直径的多个突刺。
6、 如权利要求 1所述的静电放电保护装置， 其特征在于， 所述放电扩展部 主体为宽度大于其连接的数据线和扫描线线宽的多边形导电体， 且所述多边形 导电体外周上设置有长度远小于所述多边形导电体宽度的多个突刺。
7、 如权利要求 1至 6中任一项所述的静电放电保护装置， 其特征在于， 所 述静电导电部为内侧包括一个或多个突起的可不接触地近距离容纳所述扩展部 的凹槽。
8、 如权利要求 1至 6中任一项所述的静电放电保护装置， 其特征在于， 所 述静电导电部为包括一个或多个可不接触地近距离容纳所述放电扩展部的凹槽 的导电体， 所述导电体与外围的金属公共电极连接以疏导静电。
9、 如权利要求 1至 6中任一项所述的静电放电保护装置， 其特征在于， 所 述公共导电金属层为环绕在芯片四周的大块金属层。
10、 一种液晶显示器的静电放电保护装置， 所述液晶显示器包括相互交叉 排列的多条数据线和扫描线， 其特征在于，
在所述数据线和扫描线末端设置直径大于所述数据线和扫描线线宽的圓形 导电体；
在所述圓形导电体外围设置有不接触地近距离环绕所述圓形导电体的凹 槽， 所述凹槽与外围的公共导电金属层连接以疏导所述数据线和扫描线处的静 电。
11、 如权利要求 10所述的静电放电保护装置， 其特征在于， 所述圓形导电 体外周上设置有长度远小于所述圓形导电体直径的多个突刺。
12、 如权利要求 11项所述的静电放电保护装置， 其特征在于， 所述凹槽内 侧包括一个或多个突起。
13、 如权利要求 12项所述的静电放电保护装置， 其特征在于， 所述凹槽与 外围的金属公共电极连接以疏导静电。
14、 如权利要求 13项所述的静电放电保护装置， 其特征在于， 所述公共导 电金属层为环绕在芯片四周的大块金属层。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120319932A1 (en) * 2011-06-17 2012-12-20 Shenzhen China Star Optoelectronics Technology Co., Ltd. ESD Protection Device of LCD Display

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103715681B (zh) * 2013-12-30 2016-06-22 京东方科技集团股份有限公司 一种静电放电保护电路及显示装置
CN103794606A (zh) * 2014-01-23 2014-05-14 深圳市华星光电技术有限公司 显示面板线路结构
KR102252974B1 (ko) * 2014-12-01 2021-05-20 삼성디스플레이 주식회사 표시 장치
CN105572997A (zh) * 2016-02-26 2016-05-11 武汉华星光电技术有限公司 显示面板及其信号线
CN105676499A (zh) * 2016-03-25 2016-06-15 深圳市华星光电技术有限公司 液晶显示面板及其静电放电电路
CN106444180A (zh) * 2016-08-29 2017-02-22 武汉华星光电技术有限公司 一种测试用焊点的静电释放装置及液晶显示器
CN107610663B (zh) * 2017-09-25 2019-12-03 武汉华星光电技术有限公司 平板显示装置的虚拟电路及驱动电路
CN108196407A (zh) * 2017-12-28 2018-06-22 武汉华星光电技术有限公司 显示面板及其制作方法、显示装置
US10685988B2 (en) 2017-12-28 2020-06-16 Wuhan China Star Optoelectronics Technology Co., Ltd. Display panel having connection line connected to end portions of scan lines and manufacturing method thereof, and display device
CN109545777A (zh) * 2018-12-28 2019-03-29 江苏邦融微电子有限公司 一种静电防护器件
CN111009223A (zh) * 2019-12-17 2020-04-14 Tcl华星光电技术有限公司 源极驱动器及显示装置
CN111863885B (zh) * 2020-07-01 2023-06-27 武汉天马微电子有限公司 一种待切割显示面板、显示面板的制作方法及显示装置
CN112259563B (zh) * 2020-10-28 2023-02-28 武汉华星光电技术有限公司 显示面板及显示装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1540396A (zh) * 2003-04-25 2004-10-27 胜华科技股份有限公司 具尖端放电的显示面板传导金属线布局方法及装置
CN101236315A (zh) * 2007-02-02 2008-08-06 群康科技(深圳)有限公司 液晶显示装置
US20080237789A1 (en) * 2007-03-29 2008-10-02 Zhong-Xiang He Integrated circuit stucture incorporating an inductor, an associated design method and an associated design system
CN101441344A (zh) * 2007-11-20 2009-05-27 瀚宇彩晶股份有限公司 显示器装置
CN101441372A (zh) * 2007-11-23 2009-05-27 上海广电Nec液晶显示器有限公司 液晶显示器的静电放电保护装置及其制造方法
CN201828746U (zh) * 2010-09-28 2011-05-11 北京京东方光电科技有限公司 液晶显示基板和液晶显示器

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000155329A (ja) * 1998-11-19 2000-06-06 Hitachi Ltd 液晶表示装置
TW457690B (en) * 1999-08-31 2001-10-01 Fujitsu Ltd Liquid crystal display
JP4410912B2 (ja) * 2000-06-07 2010-02-10 Ｎｅｃ液晶テクノロジー株式会社 静電保護回路
KR100555301B1 (ko) * 2002-08-13 2006-03-03 엘지.필립스 엘시디 주식회사 정전기 방지를 위한 액정패널
KR100717184B1 (ko) * 2003-08-01 2007-05-11 비오이 하이디스 테크놀로지 주식회사 액정 디스플레이 패널
CN101285974B (zh) * 2007-04-11 2011-08-31 北京京东方光电科技有限公司 一种tft lcd面板静电放电保护电路及液晶显示器
CN101201520B (zh) * 2007-12-27 2010-09-08 昆山龙腾光电有限公司 一种具有静电防护功能的液晶显示装置阵列基板
CN202093288U (zh) * 2011-06-17 2011-12-28 深圳市华星光电技术有限公司 液晶显示器的静电放电保护装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1540396A (zh) * 2003-04-25 2004-10-27 胜华科技股份有限公司 具尖端放电的显示面板传导金属线布局方法及装置
CN101236315A (zh) * 2007-02-02 2008-08-06 群康科技(深圳)有限公司 液晶显示装置
US20080237789A1 (en) * 2007-03-29 2008-10-02 Zhong-Xiang He Integrated circuit stucture incorporating an inductor, an associated design method and an associated design system
CN101441344A (zh) * 2007-11-20 2009-05-27 瀚宇彩晶股份有限公司 显示器装置
CN101441372A (zh) * 2007-11-23 2009-05-27 上海广电Nec液晶显示器有限公司 液晶显示器的静电放电保护装置及其制造方法
CN201828746U (zh) * 2010-09-28 2011-05-11 北京京东方光电科技有限公司 液晶显示基板和液晶显示器

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120319932A1 (en) * 2011-06-17 2012-12-20 Shenzhen China Star Optoelectronics Technology Co., Ltd. ESD Protection Device of LCD Display
US8836623B2 (en) * 2011-06-17 2014-09-16 Shenzhen China Star Optoelectronics Technology Co., Ltd. ESD protection device of LCD display

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