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WO2017147998A1 - 触摸屏及设备 - Google Patents

触摸屏及设备 Download PDF

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Publication number
WO2017147998A1
WO2017147998A1 PCT/CN2016/081235 CN2016081235W WO2017147998A1 WO 2017147998 A1 WO2017147998 A1 WO 2017147998A1 CN 2016081235 W CN2016081235 W CN 2016081235W WO 2017147998 A1 WO2017147998 A1 WO 2017147998A1
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WO
WIPO (PCT)
Prior art keywords
touch screen
wire
area
touch
present disclosure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2016/081235
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English (en)
French (fr)
Inventor
吴玲艳
张雷
谢涛峰
魏广超
刘洋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BOE Technology Group Co Ltd
Hefei Xinsheng Optoelectronics Technology Co Ltd
Original Assignee
BOE Technology Group Co Ltd
Hefei Xinsheng Optoelectronics Technology Co Ltd
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Publication date
Application filed by BOE Technology Group Co Ltd, Hefei Xinsheng Optoelectronics Technology Co Ltd filed Critical BOE Technology Group Co Ltd
Priority to US15/528,431 priority Critical patent/US10409403B2/en
Publication of WO2017147998A1 publication Critical patent/WO2017147998A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0445Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412Digitisers structurally integrated in a display
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/045Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/047Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using sets of wires, e.g. crossed wires
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04103Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04107Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds

Definitions

  • the present disclosure relates to the field of electronic device technologies, and in particular, to a touch screen and a device.
  • the discharge end is a tip end.
  • the wire includes a virtual region, the width of the virtual region being greater than the width of other regions of the wire.
  • the touch screen further includes a protective layer covering the bezel area and the touch area, and opening at a position corresponding to the virtual area and a position corresponding to the bonding area for connecting the touch screen and the external circuit.
  • the touch screen further includes a peelable adhesive layer, the peelable adhesive layer covering the protective layer, and the virtual area.
  • the wire is a wire made of metal.
  • the ESD capability of the touch screen and the device including the touch screen is enhanced, the life of the touch screen and the device including the touch screen is extended, the stability of the touch screen and the device including the touch screen is improved, and The customer has a better user experience without adding any additional risks.
  • FIG. 2 is a schematic diagram of a touch screen according to a second embodiment of the present disclosure.
  • FIG. 4 is a schematic cross-sectional view of the touch screen of the embodiment shown in FIG. 2 after the first step of the manufacturing process is completed;
  • FIG. 5 is a schematic plan view of the touch screen of the embodiment shown in FIG. 2 after the second step of the manufacturing step is completed;
  • Figure 6 is a schematic cross-sectional view of the touch screen of the embodiment of Figure 2 after the second step of the fabrication step is completed;
  • FIG. 7 is a schematic plan view of the touch screen of the embodiment shown in FIG. 2 after the third step of the manufacturing step is completed;
  • Figure 10 is a schematic cross-sectional view of the touch screen of the embodiment shown in Figure 2 after the fourth step of the fabrication step is completed;
  • FIG. 11 is a schematic plan view of the touch screen of the embodiment shown in FIG. 2 after the fifth step of the manufacturing step is completed;
  • the complete loop wire 4 is shown in Figure 1, but it should be understood that the actual shape of the wire 4 may vary depending on the setting conditions of the bezel area 2 of the touch screen 1, for example, there may be an opening in the wire 4, or
  • the outer shape of the frame area 2 of the touch screen 1 is bent into various shapes, and the basic purpose of the present disclosure can be achieved as long as the overall shape of the wire 4 is a ring shape.
  • the wire 4 can be made of metal, alloy, ITO material or other electrically conductive material.
  • the discharge end 5 is provided on the wire 4 to discharge an electrostatic charge and to prevent the touch screen 1 from being damaged.
  • the DG area with a large width can effectively collect electrostatic charges and realize the discharge of electrostatic charges.
  • the number and shape of the discharge ends 5, as well as the number and shape of the virtual regions DG can vary depending on the device.
  • a plurality of pairs of discharge ends 5 and a plurality of large virtual regions DG may be disposed to facilitate rapid collection and release of electrostatic charges at different positions.
  • the number of the discharge ends 5 is only one pair due to the limitation of the device space, and the basic purpose of the present disclosure can be achieved by setting only one or no setting of the virtual area DG.
  • Figure 7 is a schematic top plan view of the touch screen of the embodiment of Figure 2 after the third step of the fabrication step is completed.
  • Figure 8 is a schematic cross-sectional view of the touch screen of the embodiment of Figure 2 after the third step of the fabrication step is completed.
  • the third step is to form a first protective layer (Over Coat) OC1.
  • the first protective layer OC1 is partially covered, that is, formed only on the first electrode to provide insulation and avoid The problem of poor adhesion of other layers on the first protective layer OC1.
  • Figure 15 is a schematic top plan view of the touch screen of the embodiment of Figure 2 after the seventh step of fabrication is completed.
  • Figure 16 is a schematic cross-sectional view of the touch screen of the embodiment of Figure 2 after completion of the seventh step of fabrication.
  • the peelable adhesive layer AL is formed, the peelable adhesive layer AL covers the protective layer and the virtual area DG, and only the position of the bonding area is left exposed, so that the protection of the virtual area DG can be further realized, and the peeling can be further performed.
  • Glue can be used to bond conductive foam and other components.
  • the touch screen provided by the embodiment of the present disclosure can be well applied to electronic devices such as a desktop personal computer/notebook/monitor (TPC/NB/MNT).
  • TPC/NB/MNT desktop personal computer/notebook/monitor
  • the conductive foam may be coupled to the virtual area DG. In this way, the conductive property between the wire 4 and the device casing is stronger, and the overall ESD resistance of the device can be further improved.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Elimination Of Static Electricity (AREA)
  • Position Input By Displaying (AREA)

Abstract

一种触摸屏(1)及设备,触摸屏(1)包括边框区(2)和触摸区(3),其中,触摸屏(1)还包括在边框区(2)上设置的环形的导线(4)。导线(4)还包括至少一对相对的放电端(5)。设备包括触摸屏(1),还包括导电泡棉,导电泡棉被配置为连接导线(4)以及设备的外壳。采用上述技术方案,增强了触摸屏(1)以及包括该触摸屏(1)的设备的耐ESD能力,延长了触摸屏(1)以及包括该触摸屏(1)的设备的使用寿命,提升了触摸屏(1)以及包括该触摸屏(1)的设备的稳定性,并且在不增加任何其它附加风险的同时使客户有更好的用户体验。

Description

触摸屏及设备
本申请要求2016年3月4日递交的中国专利申请第201620167486.2号的优先权,在此全文引用上述中国专利申请所公开的内容以作为本申请的一部分。
技术领域
本公开文本涉及电子设备技术领域,尤其涉及触摸屏及设备。
背景技术
在电子市场上,客户对整机系统的轻薄化需求越来越高,使得印制电路板装配板(Printed Circuit Board Assembly,PCBA)的布局(Layout)空间也在逐步缩小,并且设备整体也更多的采用了窄边框设计。日益紧凑的布局使得静电释放(ESD)现象对于设备具有更大的威胁,这对于整机系统的抗静电释放(ESD)性能带来更大的挑战,如何将静电迅速的导出去,减小对设备本身的损伤,有效提高整机系统的抗ESD性能是电子行业一直致力要解决的难题。
目前,一般采用金属(Metal)线在电路板的外围和中间进行接地处理,接地线兼用于ESD防护。由于受到窄边框和最外围线到设备轮廓(Outline)的距离的限制,实际上设置的接地线一般不够宽,导致ESD防护效果不佳,静电不能被很好的释放。因此,如何在满足客户对窄边框、轻薄化以及高品质的需求的情况下,实现良好的抗ESD性能,成为目前电子行业急需解决的问题。
发明内容
本公开文本的实施例提供了触摸屏及设备。
根据本公开文本的第一个方面,提供了一种触摸屏,包括边框区和触摸区,触摸屏包括在边框区上设置的环形的导线。
在本公开文本的实施例中,导线包括至少一对相对的放电端。
在本公开文本的实施例中,放电端是尖端。
在本公开文本的实施例中,导线包括虚地区,虚地区的宽度大于导线的其它区域的宽度。
在本公开文本的实施例中,触摸屏还包括保护层,保护层覆盖边框区和触摸区,并在对应于虚地区的位置以及对应于用于连接触摸屏和外部电路的结合区的位置开口。
在本公开文本的实施例中,触摸屏还包括可剥胶层,可剥胶层覆盖保护层以及虚地区。
在本公开文本的实施例中,导线是由金属制成的导线。
根据本公开文本的第二个方面,提供了一种设备,包括上述的触摸屏,设备还包括导电泡棉,导电泡棉被配置为连接触摸屏的导线以及设备的外壳。
在本公开文本的实施例中,导线包括虚地区,虚地区的宽度大于导线的其它区域的宽度;导电泡棉与虚地区连接。
根据本公开文本的实施例,增强了触摸屏以及包括该触摸屏的设备的耐ESD能力,延长了触摸屏以及包括该触摸屏的设备的使用寿命,提升了触摸屏以及包括该触摸屏的设备的稳定性,并且在不增加任何其他附加风险的同时使客户有更好的用户体验。
附图说明
为了更清楚地说明本公开文本的实施例的技术方案,下面将对实施例的附图进行简要说明,应当知道,以下描述的附图仅仅涉及本公开文本的一些实施例,而非对本公开文本的限制,其中:
图1是根据本公开文本第一实施例的触摸屏的示意图;
图2是根据本公开文本第二实施例的触摸屏的示意图;
图3是图2所示实施例的触摸屏在第一步制作步骤完成后的示意性的俯视图;
图4是图2所示实施例的触摸屏在第一步制作步骤完成后的示意性的剖视图;
图5是图2所示实施例的触摸屏在第二步制作步骤完成后的示意性的俯视图;
图6是图2所示实施例的触摸屏在第二步制作步骤完成后的示意性的剖视图;
图7是图2所示实施例的触摸屏在第三步制作步骤完成后的示意性的俯视图;
图8是图2所示实施例的触摸屏在第三步制作步骤完成后的示意性的剖视图;
图9是图2所示实施例的触摸屏在第四步制作步骤完成后的示意性的俯视图;
图10是图2所示实施例的触摸屏在第四步制作步骤完成后的示意性的剖视图;
图11是图2所示实施例的触摸屏在第五步制作步骤完成后的示意性的俯视图;
图12是图2所示实施例的触摸屏在第五步制作步骤完成后的示意性的剖视图;
图13是图2所示实施例的触摸屏在第六步制作步骤完成后的示意性的俯视图;
图14是图2所示实施例的触摸屏在第六步制作步骤完成后的示意性的剖视图;
图15是图2所示实施例的触摸屏在第七步制作步骤完成后的示意性的俯视图;
图16是图2所示实施例的触摸屏在第七步制作步骤完成后的示意性的剖视图。
具体实施方式
为了使本公开文本的实施例的目的、技术方案和优点更加清楚,下面将结合附图,对本公开文本的实施例的技术方案进行清楚、完整的描述。显然,所描述的实施例是本公开文本的一部分实施例,而不是全部的实施例。基于所描述的本公开文本的实施例,本领域技术人员在无需创造性劳动的前提下所获得的所有其他实施例,也都属于本公开文本保护的范围。
图1是根据本公开文本第一实施例的触摸屏的示意图。如图1所示,触摸屏1包括边框区2和触摸区3,并且,触摸屏1包括在边框区2上设置的环形的导线4。在现有技术中,由于屏蔽静电用的金属(Metal)线中的地线上需要流过工作电流,所以兼用于屏蔽静电时的效果并不是很理想。在本例中,独立设置的环形的导线4专用于静电屏蔽,能够提高静电屏蔽的效果。在图1中表示了完整的环形导线4,但是应当理解的是,导线4的实际形状可以随着触摸屏1的边框区2的设置条件而改变,例如,导线4上可以有开口,也可以随着触摸屏1的边框区2的外形而弯曲成各种形状,只要导线4整体形状为环形即可以实现本公开文本的基本目的。导线4可以是金属、合金、ITO材料或者其它导电材料制成的。
图2是根据本公开文本第二实施例的触摸屏的示意图。如图2所示,在本例中,触摸屏1包括边框区2和触摸区3,并且,触摸屏1包括在边框区2上独立设置的环形的导线4。此外,导线4可以包括至少一对相对的放电端5。并且,放电端5可以是尖端。导线4可以包括虚地区(Dummy Ground,DG),虚地区DG的宽度大于导线4的其它区域的宽度。
在导线4上设置放电端5,能够释放静电电荷,避免触摸屏1受损。宽度较大的虚地区DG能够有效收集静电电荷,实现静电电荷的导出。显而易见的是,放电端5的数量和形状、以及虚地区DG的数量和形状都可以根据不同设备进行变化。例如,对于面积较大的触摸屏1中,可以设置多对放电端5以及多个较大的虚地区DG以利于不同位置的静电电荷的快速搜集和释放。对于面积较小的便携设备中的触摸屏1,由于设备空间的限制,放电端5的个数仅为一对,虚地区DG仅仅设置一个或者不设置均可实现本公开文本的基本目的。
以下,结合附图3至附图16,以使用6掩膜(6Mask)法制作本例的触摸屏1进行说明。
图3是图2所示实施例的触摸屏在第一步制作步骤完成后的示意性的俯视图。图4是图2所示实施例的触摸屏在第一步制作步骤完成后的示意性的剖视图。如图3和图4所示,第一步以玻璃基板GS为基础,制作黑矩阵(Black Matrix)BM层。在玻璃基板GS上涂布(Coating)BM层,经过光刻(Photo)工艺后进行去除,使得在触摸区3不存在BM层,仅在边框区2存在BM层。
图5是图2所示实施例的触摸屏在第二步制作步骤完成后的示意性的俯视图。图6是图2所示实施例的触摸屏在第二步制作步骤完成后的示意性的剖视图。如图5和图6所示,第二步制作第一电极层ITO1,在玻璃基板GS上的触摸区3内没有被BM层覆盖的部分形成第一电极层ITO1,第一电极层ITO1中包括多个第一电极。
图7是图2所示实施例的触摸屏在第三步制作步骤完成后的示意性的俯视图。图8是图2所示实施例的触摸屏在第三步制作步骤完成后的示意性的剖视图。如图7和图8所示,第三步制作第一保护层(Over Coat)OC1,第一保护层OC1采用局部覆盖的方式,即仅仅在第一电极上形成,起到绝缘作用,并且避免了其他层在第一保护层OC1上的附着力不佳的问题。
图9是图2所示实施例的触摸屏在第四步制作步骤完成后的示意性的俯视图。图10是图2所示实施例的触摸屏在第四步制作步骤完成后的示意性的剖视图。如图9和图10所示,第四步制作第二电极层ITO2,第二电极层ITO2构成电极图案(ITO Pattern),包括多个第二电极。第二电极层ITO2搭配第一电极层ITO1和第一保护层OC1构成触摸信号发送/接收(Tx/Rx)通道。
图11是图2所示实施例的触摸屏在第五步制作步骤完成后的示意性的俯视图。图12是图2所示实施例的触摸屏在第五步制作步骤完成后的示意性的剖视图。如图11和图12所示,第五步制作电路层,电路层中包括导 线4。并且,在此步骤中,还制作用于连接电极的走线。连接电极的走线引出至对应于边框区2中的BM层的区域后形成结合区(Bonding Pad),结合区用于触摸屏1与外部电路的连接。与现有技术相比较,电路层的制作方式完全相同,区别仅仅在于形成电路层的图案时,增加了导线4的图案。因此,根据本实施例,可以在不增加额外制作步骤的情况下,形成导线4。
图13是图2所示实施例的触摸屏在第六步制作步骤完成后的示意性的俯视图。图14是图2所示实施例的触摸屏在第六步制作步骤完成后的示意性的剖视图。如图13和图14所示,第六步制作第二保护层OC2,第二保护层OC2采用整面覆盖,覆盖边框区2和触摸区3,并在结合区和虚地区DG的位置开口,使结合区和虚地区DG裸露出来。第二保护层OC2可以实现对于导线4的保护,防止导线4暴露在空气中而被腐蚀。
图15是图2所示实施例的触摸屏在第七步制作步骤完成后的示意性的俯视图。图16是图2所示实施例的触摸屏在第七步制作步骤完成后的示意性的剖视图。如图15和图16所示,制作可剥胶层AL,可剥胶层AL覆盖保护层以及虚地区DG,只保留结合区位置裸露,这样可以进一步实现对于虚地区DG的保护,并且可剥胶可以用于粘接导电泡棉等部件。
在实施例中,根据需要,还可以在第六步完成后制作由SiO2/SiON等构成的消影层。
在本实施例中,虽然以6掩膜(6Mask)法为例进行了说明,但是这并不是对触摸屏的实现方式的限定,通过4掩膜(4Mask)法、5掩膜(5Mask)法等均可以实现。
本公开文本的实施例提供的触摸屏能够很好的应用于桌面个人电脑/笔记本电脑/显示器(Table Personal Computer/Notebook/Monitor,TPC/NB/MNT)等电子设备。
在本实施例中,为了进一步的增强静电转移的功能,在组装设备外壳时可以搭配导电泡棉连接虚地区DG和设备外壳。
根据本公开文本的第三实施例,提供了一种设备,包括上述的触摸屏 1,设备还包括导电泡棉,导电泡棉被配置为连接触摸屏1的导线4以及设备的外壳。这样能够提高设备整体耐ESD能力。
在本公开文本的实施例中,导电泡棉可以与虚地区DG连接。这样导线4与设备外壳之间导电能力更强,能够进一步提高设备整体耐ESD能力。
根据本公开文本的实施例,增强了触摸屏以及包括该触摸屏的设备的耐ESD能力,延长了触摸屏以及包括该触摸屏的设备的使用寿命,提升了触摸屏以及包括该触摸屏的设备的稳定性,并且在不增加任何其他附加风险的同时使客户有更好的用户体验。
可以理解的是,以上实施方式仅仅是为了说明本公开文本的原理而采用的示例性实施方式,然而本公开文本并不局限于此。对于本领域内的普通技术人员而言,在不脱离本公开文本的精神和实质的情况下,可以做出各种变型和改进,这些变型和改进也视为本公开文本的保护范围。

Claims (9)

  1. 一种触摸屏,包括边框区和触摸区,其中,所述触摸屏包括在所述边框区上设置的环形的导线。
  2. 如权利要求1所述的触摸屏,其中,所述导线包括至少一对相对的放电端。
  3. 如权利要求2所述的触摸屏,其中,所述放电端是尖端。
  4. 如权利要求1所述的触摸屏,其中,所述导线包括虚地区,所述虚地区的宽度大于所述导线的其它区域的宽度。
  5. 如权利要求4中任一项所述的触摸屏,其中,所述触摸屏还包括保护层,所述保护层覆盖所述边框区和所述触摸区,并在对应于所述虚地区的位置以及对应于用于连接所述触摸屏和外部电路的结合区的位置开口。
  6. 如权利要求5所述的触摸屏,其中,所述触摸屏还包括可剥胶层,所述可剥胶层覆盖所述保护层以及所述虚地区。
  7. 如权利要求1至6中任一项所述的触摸屏,其中,所述导线是由金属制成的导线。
  8. 一种设备,包括如权利要求1至7中任一项所述的触摸屏,其中,所述设备还包括导电泡棉,所述导电泡棉被配置为连接所述触摸屏的导线以及所述设备的外壳。
  9. 如权利要求8所述的一种设备,其中,所述导线包括虚地区,所述虚地区的宽度大于所述导线的其它区域的宽度;所述导电泡棉与所述虚地区连接。
PCT/CN2016/081235 2016-03-04 2016-05-06 触摸屏及设备 Ceased WO2017147998A1 (zh)

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