WO2019140954A1 - 显示面板、显示装置及其制备方法 - Google Patents

显示面板、显示装置及其制备方法 Download PDF

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Publication number
WO2019140954A1
WO2019140954A1 PCT/CN2018/109353 CN2018109353W WO2019140954A1 WO 2019140954 A1 WO2019140954 A1 WO 2019140954A1 CN 2018109353 W CN2018109353 W CN 2018109353W WO 2019140954 A1 WO2019140954 A1 WO 2019140954A1
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Prior art keywords
antistatic
trace
display panel
static
unit
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PCT/CN2018/109353
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English (en)
French (fr)
Inventor
杜瑞芳
曹子君
马小叶
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京东方科技集团股份有限公司
合肥鑫晟光电科技有限公司
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Application filed by 京东方科技集团股份有限公司, 合肥鑫晟光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US16/338,300 priority Critical patent/US20210018802A1/en
Publication of WO2019140954A1 publication Critical patent/WO2019140954A1/zh

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
    • H05F3/00—Carrying-off electrostatic charges
    • 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
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
    • H05F3/00—Carrying-off electrostatic charges
    • H05F3/02—Carrying-off electrostatic charges by means of earthing connections
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
    • H05F3/00—Carrying-off electrostatic charges
    • H05F3/04—Carrying-off electrostatic charges by means of spark gaps or other discharge devices
    • 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

Definitions

  • the present disclosure relates to the field of display technologies, and in particular, to a display panel, a display device, and a method of fabricating the same.
  • ESD Electro Static Discharge
  • the present disclosure provides a display panel and a display device.
  • a display panel includes a first antistatic trace disposed at a periphery of a display area and a second antistatic trace, and the second antistatic trace passes through the first antistatic unit and the The first anti-static trace electrical connection;
  • the orthographic projection of the second antistatic trace on the display surface of the display panel is located at a periphery of the orthographic projection of the first antistatic trace on the display surface of the display panel, and the An antistatic trace and the second antistatic trace are electrically connected to the circuit board of the display panel.
  • the display panel further includes a common electrode, and the second antistatic trace is further electrically connected to the common electrode through a second antistatic unit;
  • the common electrode is also electrically connected to the circuit board.
  • the common electrode is disposed over the entire area of the display area.
  • the first antistatic unit and the second antistatic unit are both switching transistors, and the control ends of the first antistatic unit and the second antistatic unit Both are connected to the second antistatic trace.
  • the number of the first antistatic unit and the second antistatic unit is two.
  • an insulating layer is disposed between the first antistatic trace and the second antistatic trace.
  • the display panel further includes an array substrate and a color filter substrate disposed on the cartridge, and an electrostatic protection layer disposed on a side of the color filter substrate facing away from the array substrate, The electrostatic protection layer is attached to the outer casing.
  • the second antistatic trace is electrically connected to the electrostatic protection layer by a first silver paste, and the first silver paste is not disposed in the display panel. Three sides of the flexible circuit board.
  • a metal oxide electrode is further disposed between the second antistatic trace and the first silver paste.
  • the second antistatic trace is electrically connected to the electrostatic protection layer through a second silver paste, and the second silver paste is disposed in the display panel.
  • a metal oxide electrode is further disposed between the second antistatic trace and the second silver paste.
  • one side of the display panel is provided with a connection point, and the first antistatic trace and the second antistatic trace are electrically connected to the a circuit board, and the first antistatic trace and the second antistatic trace surround the periphery of the display area on the other three sides of the display panel except the one side.
  • the first antistatic trace and the second antistatic trace are located in different layers in the display panel, and the insulating layer spans the different layer .
  • the display panel is a borderless display panel.
  • a display device including the above display panel is provided.
  • a method of preparing a display panel including:
  • the substrate Preparing a substrate, the substrate comprising a display area and a circuit board provided with a display panel;
  • a first anti-static trace and a second anti-static trace are disposed on the periphery of the display area, and the second anti-static trace is electrically connected to the first anti-static trace through a first anti-static unit.
  • the orthographic projection of the second antistatic trace on the display surface of the display panel is located at a periphery of the orthographic projection of the first antistatic trace on the display surface of the display panel, and the An antistatic trace and the second antistatic trace are electrically connected to the circuit board.
  • the method further includes:
  • the second antistatic trace is further electrically connected to the common electrode through a second antistatic unit;
  • the common electrode is also electrically connected to the circuit board.
  • the first antistatic unit and the second antistatic unit are both switching transistors, and the control ends of the first antistatic unit and the second antistatic unit Both are connected to the second antistatic trace.
  • the method further includes: providing an insulating layer between the first antistatic trace and the second antistatic trace.
  • the first antistatic trace and the second antistatic trace are located in different layers in the display panel, and the insulating layer is formed to cross the Different layers.
  • FIG. 1 is a schematic plan view showing a display device having an electrostatic protection function in an exemplary embodiment of the present disclosure
  • FIG. 2 is a schematic view showing a connection manner of a first silver paste in an exemplary embodiment of the present disclosure
  • FIG. 3 is a schematic view showing a connection manner of a second silver paste in an exemplary embodiment of the present disclosure
  • FIG. 4 is a schematic view showing an ohmic contact layer of a second antistatic trace in an exemplary embodiment of the present disclosure
  • Fig. 5 schematically shows a plan view of a conventional display device having an electrostatic protection function.
  • FIG. 6 schematically illustrates a flow chart of a method of preparing a display panel, according to an exemplary embodiment of the present disclosure.
  • the present exemplary embodiment provides a display panel having an electrostatic protection function.
  • the display panel may include a first antistatic trace 101 and a second antistatic trace 102 disposed on the periphery of the display area AA.
  • the second anti-static trace 102 is located at the periphery of the first anti-static trace 101 and is electrically connected to the first anti-static trace 101 through the first anti-static unit 103, and the first anti-static trace 101 and the second anti-static trace
  • Each of the wires 102 needs to be electrically connected to a circuit board of a display device such as a COF (Chip on Film).
  • the second anti-static traces 102 are located on the periphery of the first anti-static traces 101.
  • the second anti-static traces 102 and the first anti-static traces 101 are both disposed on the display.
  • the periphery of the area AA, and the second antistatic trace 102 is further away from the display area AA with respect to the first antistatic trace 101.
  • the distance between the second antistatic trace 102 and the display area A-A is greater than the distance between the first antistatic trace 101 and the display area A-A.
  • one side of the display panel for example, the bottom side, can be used to set a connection point of the driving circuit, and the first antistatic wiring 101 and the second antistatic wiring 102 can realize electrical connection with the circuit board on the side.
  • the other three sides it surrounds the periphery of the display area AA.
  • the display panel provided by the exemplary embodiment of the present disclosure is electrically connected to the circuit board by the first antistatic trace 101 and the second antistatic trace 102, and is also connected by the first antistatic unit 103 therebetween.
  • the first anti-static unit 103 is turned on under the voltage of the second anti-static trace 102 to take the second anti-static.
  • the current on the line 102 is directed to the first anti-static trace 101, and the instantaneous current generated by the ESD can be directly guided to the circuit board by the second anti-static trace 102 on the one hand, and by the second anti-static trace 102 on the other hand.
  • the antistatic unit 103 and the first antistatic trace 101 are guided to the circuit board, thereby realizing the release of static electricity, thereby exerting an electrostatic protection effect.
  • the display panel may further include a common electrode 104 located inside the display area AA, and the second antistatic trace 102 may be electrically connected to the common electrode 104 through the second antistatic unit 105, and The common electrode 104 is also electrically connected to the wiring board of the display device.
  • the instantaneous current can be directed to the second anti-static trace 102, and the second anti-static unit 105 is turned on under the voltage of the second anti-static trace 102 to provide the second defense.
  • the current on the electrostatic trace 102 is directed to the common electrode 104, and the instantaneous current generated by the ESD can also be guided by the second antistatic trace 102 to the circuit board via the second antistatic unit 105 and the common electrode 104, thereby realizing the release of static electricity. Therefore, the display panel is electrostatically protected. Since the common electrode 104 is generally disposed over the entire surface in the display area A-A, its resistance is small, so that electrostatic discharge can be quickly achieved.
  • an insulating layer may be disposed at a spaced position between the first antistatic trace 101 and the second antistatic trace 102.
  • the arrangement of the insulating layer can make the interior of the display panel unaffected, thereby ensuring display quality.
  • the first antistatic trace 101 and the second antistatic trace 102 may be located on the same layer in the display panel, or may be located on different layers as long as they are projected on the substrate. The positional relationship between them satisfies the positional relationship of the present disclosure.
  • the insulating layer between them may also span multiple layers, thereby preventing the inside of the display panel from being externally received. The effect of corrosion.
  • the first antistatic unit 103 and the second antistatic unit 105 can be turned on under the voltage of the second antistatic trace 102 to realize the transfer of current, and thus the first antistatic unit 103 and the second
  • the antistatic unit 105 can be a switching transistor such as a MOS (Metal Oxide Semiconductor) transistor, and the control terminals of both, that is, the gates of the switching transistors are connected to the second antistatic trace 102. Since the instantaneous high voltage is generated when the static electricity is released, the first antistatic unit 103 and the second antistatic unit 105 may adopt an N type MOS tube to be responsive to the voltage signal on the second antistatic trace 102 when generating high energy static electricity. And being turned on in time, thereby realizing the transmission and release of static electricity from the second antistatic trace 102 to the first antistatic trace 101 or the common electrode 104.
  • MOS Metal Oxide Semiconductor
  • first anti-static unit 103 and the second anti-static unit 105 can be set according to the actual size of the display panel, which is not specifically limited in this embodiment. However, it is considered that the plurality of first antistatic units 103 and/or the plurality of second antistatic units 105 can be disposed in a segmented manner to effectively reduce the influence on current transmission when the second antistatic trace 102 is disconnected.
  • the embodiment preferably provides at least two first antistatic units 103 and at least two second antistatic units 105.
  • the display panel may include an array substrate 201 and a color filter substrate 202 disposed on the cartridge, and electrostatic protection disposed on a side of the color filter substrate 202 facing away from the array substrate 201.
  • Layer 203 such as an ITO layer, can be attached to the outer casing of the display device.
  • the second anti-static trace 102 can be electrically connected to the static protection layer 203 through the first silver paste 106, and the first silver paste 106 can be evenly distributed.
  • the distribution is not on the three sides of the flexible circuit board, and is located on the side edges of the array substrate 201 and the color filter substrate 202 shown in FIG. 2, and the specific number thereof can be set according to the actual size of the display panel.
  • the second antistatic trace 102 can also be electrically connected to the static protection layer 203 through the second silver paste 107.
  • the second silver paste 107 can be The one side of the display panel is provided with a flexible circuit board, and the specific number thereof can be set according to the actual size of the display panel.
  • the second antistatic trace 102 can also be electrically connected to the static protection layer 203 through the first silver paste 106 and the second silver paste 107, respectively.
  • the specific distribution manner and the number of settings refer to the above two embodiments.
  • the arc occurring on the periphery of the display panel can be directly guided to the electrostatic protection layer 203 outside the color filter substrate 202 through the first silver paste 106, and can be guided by the first silver paste 106 on the other hand.
  • the second anti-static trace 102 is further directed to the electrostatic protection layer 203 on the outer side of the color filter substrate 202 via the second silver paste 107 through the second anti-static trace 102. Since the electrostatic protection layer 203 is connected to the outer casing of the display device, Electrostatic discharge leads to electrostatic protection.
  • a metal oxide electrode may be disposed between the second antistatic trace 102 and the first silver paste 106 and/or the second antistatic trace 102 and the second silver paste 107.
  • 400 for example an ITO electrode, provides an ohmic contact for the placement of the silver paste.
  • the second antistatic trace 102 is usually formed of a gate metal layer, oxidation is apt to occur, and thus the arrangement of the metal oxide electrode can effectively prevent oxidation of the second antistatic trace 102.
  • the example embodiment also provides a display device including the above display panel.
  • the display device has an electrostatic protection function, which can be any of a common display device, a narrow bezel display device, and a frameless display device, and is particularly suitable for an outward frameless display device of the array substrate.
  • the display device provided by the present exemplary embodiment has a plurality of discharge paths, for example, the second anti-static trace 102 passes through the first anti-static unit 103 and The first antistatic trace 101 is connected to the flexible circuit board, and the second antistatic lead passes through the second antistatic unit 105 and the common electrode 104 to the flexible circuit board, and the first silver paste 106 passes through the electrostatic protection outside the color filter substrate 202.
  • the layer 203 is to the outer casing, and the first silver paste 106 passes through the second antistatic trace 102, the second silver paste 107, and the electrostatic protection layer 203 outside the color filter substrate 202 to the outer casing.
  • the plurality of discharge paths provided by the display device can significantly enhance the electrostatic discharge capability, thereby preventing damage to the line or components caused by ESD, thereby protecting the service life of the display device.
  • the display device may include any product or component having a display function, such as a mobile phone, a tablet computer, a television, a notebook computer, a digital photo frame, a navigator, etc., which is not specifically limited in the present disclosure.
  • FIG. 6 schematically illustrates a flow chart of a method of preparing a display panel, according to an exemplary embodiment of the present disclosure.
  • a method of preparing a display panel according to an exemplary embodiment of the present disclosure may include: 610 preparing a substrate including a display region and a wiring board provided with the display panel; and 620 providing a first periphery of the display region The anti-static trace and the second anti-static trace are electrically connected to the first anti-static trace through the first anti-static unit.
  • the orthographic projection of the second antistatic trace on the display surface of the display panel is located at a periphery of the orthographic projection of the first antistatic trace on the display surface of the display panel, and the An antistatic trace and the second antistatic trace are electrically connected to the circuit board.
  • the method for preparing a display panel further includes: forming a common electrode on the display area, the common electrode being disposed on the entire surface of the display area, wherein the second anti-static trace is further passed through the second protection An electrostatic unit is electrically connected to the common electrode, and wherein the common electrode is also electrically connected to the wiring board.
  • the first antistatic unit and the second antistatic unit are both switching transistors, and the control ends of the first antistatic unit and the second antistatic unit are both Two anti-static traces are connected.
  • the method for preparing a display panel further includes: providing an insulating layer between the first antistatic trace and the second antistatic trace.
  • the first antistatic trace and the second antistatic trace are located in different layers in the display panel, and the insulating layer is formed to span the different layers.
  • the display panel and the display device provided by the exemplary embodiments of the present disclosure are electrically connected to the circuit board by connecting the first antistatic trace and the second antistatic trace, and are also connected by the first antistatic unit therebetween. Therefore, the instantaneous current can be directed to the second antistatic trace when the ESD phenomenon occurs, and the first antistatic unit is turned on under the second antistatic trace voltage to connect the current on the second antistatic trace.
  • the instantaneous current generated by the ESD can be directly guided to the circuit board by the second anti-static trace, and the second anti-static trace can be passed through the first anti-static unit and the first anti-static
  • the wiring is guided to the circuit board, thereby realizing the release of static electricity, thereby exerting an electrostatic protection effect on the display device.

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Abstract

一种显示面板以及显示装置。该显示面板包括设置在显示区域（A-A）外围的第一防静电走线（101）和第二防静电走线（102），第二防静电走线（102）通过第一防静电单元（103）与第一防静电走线（101）电连接；其中，第二防静电走线（102）设置在第一防静电走线（101）的外围，且第一防静电走线（101）和第二防静电走线（102）均电连接至显示装置的线路板。

Description

显示面板、显示装置及其制备方法
相关申请的交叉引用
本申请要求于2018年01月19日递交的中国专利申请第201820092083.5号的优先权，在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。
技术领域
本公开涉及显示技术领域，尤其涉及一种显示面板、显示装置及其制备方法。
背景技术
在显示装置的生产及使用过程中不可避免的会产生内部静电，所产生的静电如果得不到及时地释放，就会在显示装置的内部累积，一旦累积到一定程度就会发生大电流的瞬间放电，这就是ESD(Electro Static Discharge，静电释放)现象。ESD的发生可能会烧坏显示装置的集成电路或内部线路等部件。
需要说明的是，在上述背景技术部分公开的信息仅用于加强对本公开的背景的理解，因此可以包括不构成对本领域普通技术人员已知的现有技术的信息。
发明内容
本公开提供一种显示面板以及显示装置。
本公开的其他特性和优点将通过下面的详细描述变得显然，或部分地通过本公开的实践而习得。
根据本公开的一个方面，提供一种显示面板，包括设置在显示区域外围的第一防静电走线和第二防静电走线，所述第二防静电走线通过第一防静电单元与所述第一防静电走线电连接；
其中，所述第二防静电走线在所述显示面板的显示表面上的正投影位于所述第一防静电走线在所述显示面板的显示表面上的正投影的外围，且所述第一防静电走线和所述第二防静电走线均电连接至 显示面板的线路板。
本公开的一种示例性实施例中，所述显示面板还包括公共电极，所述第二防静电走线还通过第二防静电单元与所述公共电极电连接；
其中，所述公共电极也电连接至所述线路板。
本公开的一种示例性实施例中，所述公共电极在显示区域内整面设置。
本公开的一种示例性实施例中，所述第一防静电单元和所述第二防静电单元均为开关晶体管，且所述第一防静电单元和所述第二防静电单元的控制端均与所述第二防静电走线相连。
本公开的一种示例性实施例中，所述第一防静电单元和所述第二防静电单元的数量均为两个。
本公开的一种示例性实施例中，所述第一防静电走线与所述第二防静电走线之间设置有绝缘层。
本公开的一种示例性实施例中，所述显示面板还包括对盒设置的阵列基板和彩膜基板，以及设置在所述彩膜基板背离所述阵列基板一侧的静电防护层，所述静电防护层连接至外壳。
本公开的一种示例性实施例中，所述第二防静电走线通过第一银胶与所述静电防护层电连接，所述第一银胶分布在所述显示面板中未设所述柔性线路板的三侧。
本公开的一种示例性实施例中，所述第二防静电走线与所述第一银胶之间还设置有金属氧化物电极。
本公开的一种示例性实施例中，所述第二防静电走线通过第二银胶与所述静电防护层电连接，所述第二银胶分布在所述显示面板中设有所述柔性线路板的一侧。
本公开的一种示例性实施例中，所述第二防静电走线与所述第二银胶之间还设置有金属氧化物电极。
本公开的一种示例性实施例中，所述显示面板的一侧设置有连接点，所述第一防静电走线和所述第二防静电走线通过所述连接点电连接至所述线路板，并且所述第一防静电走线和所述第二防静电走线在所述显示面板的除了所述一侧的其它三侧环绕在显示区域的外围。
本公开的一种示例性实施例中，所述第一防静电走线和所述第二防静电走线位于所述显示面板中的不同的层，所述绝缘层跨过所述不同的层。
本公开的一种示例性实施例中，所述显示面板为无边框显示面板。
根据本公开的一个方面，提供一种显示装置，包括上述的显示面板。
根据本公开的一个方面，提供一种制备显示面板的方法，包括：
制备基板，所述基板包括显示区域且设置有显示面板的线路板；
在所述显示区域外围设置第一防静电走线和第二防静电走线，所述第二防静电走线通过第一防静电单元与所述第一防静电走线电连接，
其中，所述第二防静电走线在所述显示面板的显示表面上的正投影位于所述第一防静电走线在所述显示面板的显示表面上的正投影的外围，且所述第一防静电走线和所述第二防静电走线均电连接至所述线路板。
本公开的一种示例性实施例中，所述方法还包括：
在所述显示区域上形成公共电极，所述公共电极在显示区域内整面设置，
其中，所述第二防静电走线还通过第二防静电单元与所述公共电极电连接；
其中，所述公共电极也电连接至所述线路板。
本公开的一种示例性实施例中，所述第一防静电单元和所述第二防静电单元均为开关晶体管，且所述第一防静电单元和所述第二防静电单元的控制端均与所述第二防静电走线相连。
本公开的一种示例性实施例中，所述方法还包括：在所述第一防静电走线与所述第二防静电走线之间设置绝缘层。
本公开的一种示例性实施例中，所述第一防静电走线和所述第二防静电走线位于所述显示面板中的不同的层，所述绝缘层被形成为跨过所述不同的层。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开。本节提供本公开中描述的技术的各种实现或示例的概述，并不是所公开技术的全部范围或所有特征的全面公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1示意性示出本公开示例性实施例中具有静电防护功能的显示装置的平面示意图；
图2示意性示出本公开示例性实施例中第一银胶的连接方式示意图；
图3示意性示出本公开示例性实施例中第二银胶的连接方式示意图；
图4示意性示出本公开示例性实施例中第二防静电走线的欧姆接触层示意图；
图5示意性示出具有静电防护功能的传统显示装置的平面示意图。
图6示意性示出根据本公开示例性实施例的制备显示面板的方法的流程图。
具体实施方式
现在将参考附图更全面地描述示例实施例。然而，示例实施例能够以多种形式实施，且不应被理解为限于在此阐述的范例；相反，提供这些实施例使得本公开将更加全面和完整，并将示例实施例的构思全面地传达给本领域的技术人员。所描述的特征、结构或特性可以以任何合适的方式结合在一个或更多实施例中。在下面的描述中，提 供许多具体细节从而给出对本公开的实施例的充分理解。然而，本领域技术人员将意识到，可以实践本公开的技术方案而省略所述特定细节中的一个或更多，或者可以采用其它的方法、组元、装置、步骤等。在其它情况下，不详细示出或描述公知技术方案以避免使本公开的各方面变得模糊。
此外，附图仅为本公开的示意性图解，并非一定是按比例绘制。附图中各层的厚度和形状不反映真实比例，仅是为了便于说明本公开的内容。图中相同的附图标记表示相同或类似的部分，因而将省略对它们的重复描述。
本示例实施方式提供了一种具有静电防护功能的显示面板，如图1所示，该显示面板可以包括设置在显示区域A-A外围的第一防静电走线101和第二防静电走线102，第二防静电走线102位于第一防静电走线101的外围并通过第一防静电单元103与第一防静电走线101电连接，且第一防静电走线101和第二防静电走线102均需电连接至显示装置的线路板例如COF(Chip on Film，挠性线路板上贴装芯片)。在本实施例中，第二防静电走线102位于第一防静电走线101的外围可以表示以下布置方式，即，第二防静电走线102与第一防静电走线101均设置在显示区域A-A的外围，并且第二防静电走线102相对于第一防静电走线101更远离显示区域A-A。换言之，在同一位置处，第二防静电走线102与显示区域A-A之间的距离大于第一防静电走线101与显示区域A-A之间的距离。
其中，该显示面板的一侧例如底侧可用于设置驱动电路的连接点，则第一防静电走线101和第二防静电走线102便可在该侧实现与线路板之间的电连接，而在其它三侧环绕在显示区域A-A的外围。
本公开示例性实施方式所提供的显示面板，通过将第一防静电走线101与第二防静电走线102均电连接至线路板，且二者之间还通过第一防静电单元103相连，这样便可在发生ESD现象时使瞬间电流导向第二防静电走线102，此时第一防静电单元103在第二防静电走线102的电压作用下导通以将第二防静电走线102上的电流导向第一防静电走线101，则ESD所产生的瞬间电流一方面可由第二防静 电走线102直接导向线路板，另一方面可由第二防静电走线102经第一防静电单元103和第一防静电走线101而导向线路板，以此实现静电的释放，从而起到静电防护效果。
更进一步的，参考图1所示，该显示面板还可以包括位于显示区域A-A内部的公共电极104，第二防静电走线102还可以通过第二防静电单元105与公共电极104电连接，且公共电极104也电连接至该显示装置的线路板。
这样一来，当发生ESD现象时，瞬间电流便可导向第二防静电走线102，此时第二防静电单元105在第二防静电走线102的电压作用下导通以将第二防静电走线102上的电流导向公共电极104，则ESD所产生的瞬间电流还可由第二防静电走线102经第二防静电单元105和公共电极104而导向线路板，以此实现静电的释放，从而对显示面板起到静电防护效果。由于在显示区域A-A内，公共电极104一般都是整面设置的，其电阻较小，因此能够快速的实现静电释放。
本示例实施方式中，第一防静电走线101与第二防静电走线102之间的间隔位置处还可以设置绝缘层。在显示装置的长期使用过程中，即使最外面的第二防静电走线102出现些许腐蚀，该绝缘层的设置也可使显示面板的内部不受影响，从而保证显示品质。
应当理解的是，在本发明中，第一防静电走线101与第二防静电走线102可以位于显示面板中的同一层上，也可以位于不同的层上，只要其在基板上的投影之间的位置关系满足本公开的位置关系即可。
另外，在第一防静电走线101与第二防静电走线102位于不同的层上的情况下，它们之间的绝缘层也可以跨过多个层，从而可以防止显示面板的内部受到外部腐蚀的影响。
基于上述描述可知，第一防静电单元103和第二防静电单元105均可在第二防静电走线102的电压作用下导通以实现电流的传递，因此第一防静电单元103和第二防静电单元105均可以为开关晶体管例如MOS(Metal Oxide Semiconductor，金属-氧化物-半导体)晶体管，且二者的控制端即开关晶体管的栅极均与第二防静电走线102相连。 由于静电释放时会产生瞬间高压，因此第一防静电单元103和第二防静电单元105可以采用N型MOS管，以便于在产生高能静电时能够响应第二防静电走线102上的电压信号而及时导通，从而实现静电自第二防静电走线102向第一防静电走线101或者公共电极104的传递与释放。
需要说明的是：第一防静电单元103和第二防静电单元105的位置以及数量可以根据显示面板的实际尺寸进行设定，本实施例对此不作具体限定。但考虑到分段式设置多个第一防静电单元103和/或多个第二防静电单元105能够在第二防静电走线102出现断路时有效的减小对电流传递的影响，因此本实施例优选设置至少两个第一防静电单元103和至少两个第二防静电单元105。
本示例实施方式中，如图2和图3所示，所述显示面板可以包括对盒设置的阵列基板201和彩膜基板202，以及设置在彩膜基板202背离阵列基板201一侧的静电防护层203例如ITO层，该静电防护层203可与显示装置的外壳相连。
在本示例的一种实施方式中，参考图1和图2所示，第二防静电走线102可以通过第一银胶106与该静电防护层203电连接，该第一银胶106可以均匀的分布在显示面板未设柔性线路板的三侧，且位于图2所示的阵列基板201与彩膜基板202的侧边缘，其具体数量可根据显示面板的实际尺寸进行设定。
在本示例的另一实施方式中，参考图1和图3所示，第二防静电走线102也可以通过第二银胶107与该静电防护层203电连接，该第二银胶107可以分布在显示面板中设有柔性线路板的一侧，其具体数量可根据显示面板的实际尺寸进行设定。
在本示例的又一实施方式中，参考图1至图3所示，第二防静电走线102还可以同时通过第一银胶106和第二银胶107分别与该静电防护层203电连接，其具体分布方式以及设置数量参考上述两实施方式即可。
这样一来，在进行ESD实验时，发生在显示面板周边的电弧一方面可通过第一银胶106直接导向彩膜基板202外侧的静电防护层 203，另一方面可通过第一银胶106导向第二防静电走线102，再通过第二防静电走线102经第二银胶107导向彩膜基板202外侧的静电防护层203，由于静电防护层203与显示装置的外壳相连，因此可将静电导出，从而起到静电防护效果。
需要说明的是：如图4所示，在第二防静电走线102与第一银胶106和/或第二防静电走线102与第二银胶107之间还可以设置金属氧化物电极400例如ITO电极，从而为银胶的设置提供欧姆接触点。此外，由于第二防静电走线102通常是以栅金属层形成的，容易发生氧化，因此金属氧化物电极的设置还可以有效的防止第二防静电走线102的氧化。
本示例实施方式还提供了一种显示装置，包括上述的显示面板。该显示装置具有静电防护功能，其可以是普通显示装置、窄边框显示装置、以及无边框显示装置中的任一种，尤其适用于阵列基板向外的无边框显示装置。
相比于图5所示的具有静电防护功能的显示装置而言，本示例实施方式所提供的显示装置具有多条放电路径，例如由第二防静电走线102经第一防静电单元103和第一防静电走线101至柔性线路板，由第二防静电走线经第二防静电单元105和公共电极104至柔性线路板，由第一银胶106经彩膜基板202外侧的静电防护层203至外壳，以及由第一银胶106经第二防静电走线102、第二银胶107和彩膜基板202外侧的静电防护层203至外壳。这样一来，该显示装置所提供的多条放电路径能够显著的增强静电释放能力，从而防止由ESD引起的线路或部件损伤，以此保护显示装置的使用寿命。
本示例实施方式中，所述显示装置例如可以包括手机、平板电脑、电视机、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件，本公开对此不进行特殊限定。
图6示意性示出根据本公开示例性实施例的制备显示面板的方法的流程图。参照图6，根据本公开示例性实施例的制备显示面板的方法可以包括：610制备基板，所述基板包括显示区域且设置有显示面板的线路板；以及620在所述显示区域外围设置第一防静电走线和 第二防静电走线，所述第二防静电走线通过第一防静电单元与所述第一防静电走线电连接。其中，所述第二防静电走线在所述显示面板的显示表面上的正投影位于所述第一防静电走线在所述显示面板的显示表面上的正投影的外围，且所述第一防静电走线和所述第二防静电走线均电连接至所述线路板。
根据本实施例，制备显示面板的方法还包括：在所述显示区域上形成公共电极，所述公共电极在显示区域内整面设置，其中，所述第二防静电走线还通过第二防静电单元与所述公共电极电连接，并且其中，所述公共电极也电连接至所述线路板。在本实施例中，所述第一防静电单元和所述第二防静电单元均为开关晶体管，且所述第一防静电单元和所述第二防静电单元的控制端均与所述第二防静电走线相连。
根据本实施例，制备显示面板的方法还包括：在所述第一防静电走线与所述第二防静电走线之间设置绝缘层。在本实施例中，所述第一防静电走线和所述第二防静电走线位于所述显示面板中的不同的层，所述绝缘层被形成为跨过所述不同的层。
根据本公开示例性实施例的制备显示面板的方法的其它细节可以参考前述实施例中的详细描述，在这里将不再赘述。
本公开示例性实施方式所提供的显示面板以及显示装置，通过将第一防静电走线与第二防静电走线均电连接至线路板，且二者之间还通过第一防静电单元相连，这样便可在发生ESD现象时使瞬间电流导向第二防静电走线，此时第一防静电单元在第二防静电走线电压作用下导通以将第二防静电走线上的电流导向第一防静电走线，则ESD所产生的瞬间电流一方面可由第二防静电走线直接导向线路板，另一方面可由第二防静电走线经第一防静电单元和第一防静电走线而导向线路板，以此实现静电的释放，从而对显示装置起到静电防护效果。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本公开的其它实施方案。本申请旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的 一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由所附的权利要求指出。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。

Claims (20)

  1. 一种显示面板，包括设置在显示区域外围的第一防静电走线和第二防静电走线，所述第二防静电走线通过第一防静电单元与所述第一防静电走线电连接；
    其中，所述第二防静电走线在所述显示面板的显示表面上的正投影位于所述第一防静电走线在所述显示面板的显示表面上的正投影的外围，且所述第一防静电走线和所述第二防静电走线均电连接至显示面板的线路板。
  2. 根据权利要求1所述的显示面板，其中，所述显示面板还包括公共电极，所述第二防静电走线还通过第二防静电单元与所述公共电极电连接；
    其中，所述公共电极也电连接至所述线路板。
  3. 根据权利要求2所述的显示面板，其中，所述公共电极在显示区域内整面设置。
  4. 根据权利要求2所述的显示面板，其中，所述第一防静电单元和所述第二防静电单元均为开关晶体管，且所述第一防静电单元和所述第二防静电单元的控制端均与所述第二防静电走线相连。
  5. 根据权利要求4所述的显示面板，其中，所述第一防静电单元和所述第二防静电单元的数量均为两个。
  6. 根据权利要求1所述的显示面板，其中，所述第一防静电走线与所述第二防静电走线之间设置有绝缘层。
  7. 根据权利要求1-6任一项所述的显示面板，其中，所述显示面板还包括对盒设置的阵列基板和彩膜基板，以及设置在所述彩膜基板背离所述阵列基板一侧的静电防护层，所述静电防护层连接至外壳。
  8. 根据权利要求7所述的显示面板，其中，所述第二防静电走线通过第一银胶与所述静电防护层电连接，所述第一银胶分布在所述显示面板中未设所述柔性线路板的三侧。
  9. 根据权利要求8所述的显示面板，其中，所述第二防静电走线与所述第一银胶之间还设置有金属氧化物电极。
  10. 根据权利要求7所述的显示面板，其中，所述第二防静电走线通过第二银胶与所述静电防护层电连接，所述第二银胶分布在所述显示面板中设有所述柔性线路板的一侧。
  11. 根据权利要求10所述的显示面板，其中，所述第二防静电走线与所述第二银胶之间还设置有金属氧化物电极。
  12. 根据权利要求1所述的显示面板，其中，所述显示面板的一侧设置有连接点，所述第一防静电走线和所述第二防静电走线通过所述连接点电连接至所述线路板，并且所述第一防静电走线和所述第二防静电走线在所述显示面板的除了所述一侧的其它三侧环绕在显示区域的外围。
  13. 根据权利要求6所述的显示面板，其中，所述第一防静电走线和所述第二防静电走线位于所述显示面板中的不同的层，所述绝缘层跨过所述不同的层。
  14. 根据权利要求1所述的显示面板，其中，所述显示面板为无边框显示面板。
  15. 一种显示装置，包括权利要求1-14任一项所述的显示面板。
  16. 一种制备显示面板的方法，包括：
    制备基板，所述基板包括显示区域且设置有显示面板的线路板；
    在所述显示区域外围设置第一防静电走线和第二防静电走线，所述第二防静电走线通过第一防静电单元与所述第一防静电走线电连接，
    其中，所述第二防静电走线在所述显示面板的显示表面上的正投影位于所述第一防静电走线在所述显示面板的显示表面上的正投影的外围，且所述第一防静电走线和所述第二防静电走线均电连接至所述线路板。
  17. 根据权利要求16所述的方法，还包括：
    在所述显示区域上形成公共电极，所述公共电极在显示区域内整面设置，
    其中，所述第二防静电走线还通过第二防静电单元与所述公共电极电连接；
    其中，所述公共电极也电连接至所述线路板。
  18. 根据权利要求17所述的方法，其中，所述第一防静电单元和所述第二防静电单元均为开关晶体管，且所述第一防静电单元和所述第二防静电单元的控制端均与所述第二防静电走线相连。
  19. 根据权利要求1所述的方法，还包括：
    在所述第一防静电走线与所述第二防静电走线之间设置绝缘层。
  20. 根据权利要求19所述的方法，其中所述第一防静电走线和所述第二防静电走线位于所述显示面板中的不同的层，所述绝缘层被形成为跨过所述不同的层。
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CN207895774U (zh) * 2018-01-19 2018-09-21 合肥鑫晟光电科技有限公司 显示面板以及显示装置
CN109461384B (zh) * 2018-12-18 2021-03-16 武汉华星光电半导体显示技术有限公司 用于防静电的显示面板或阵列组件的制造方法及显示面板
CN110941125B (zh) * 2019-12-16 2022-11-04 京东方科技集团股份有限公司 阵列基板、显示面板、显示装置
CN111524450B (zh) * 2020-04-29 2022-03-08 昆山国显光电有限公司 显示装置、及其绑定阻抗检测方法和屏体裂纹检测方法
CN112562528A (zh) * 2020-12-14 2021-03-26 冯卫江 一种新型户外工作led显示屏

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