CN113614682A - 触摸传感器 - Google Patents

触摸传感器 Download PDF

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CN113614682A
CN113614682A CN202080023631.9A CN202080023631A CN113614682A CN 113614682 A CN113614682 A CN 113614682A CN 202080023631 A CN202080023631 A CN 202080023631A CN 113614682 A CN113614682 A CN 113614682A
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transparent film
laminate
side electrode
touch sensor
film substrate
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松本康祐
加贺濑充
向后辉之
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Nissha Printing Co Ltd
Nissha Co Ltd
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Nissha Printing Co Ltd
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Abstract

本发明的目的在于,提供一种在切口部形成梯形形状的切口部并抗裂性优异的触摸传感器。在层叠于透明薄膜基材的上部保护薄膜以及下部保护薄膜上,在与正面侧端子以及背面侧端子对置的区域中,在俯视中,形成从开口端朝向里部逐渐变宽的梯形形状的切口部。

Description

触摸传感器
技术领域
本发明涉及一种抗裂性优异的触摸传感器。
背景技术
一直以来,触摸传感器作为输入单元被广泛使用。触摸传感器在很多情况下作为针对组装了有机EL、液晶显示器、等离子显示器等显示装置的各种装置等(例如售票机、ATM装置、移动电话、游戏机)的输入单元,与显示装置一同被使用。在这样的装置中,触摸传感器配置在显示装置的显示面上,由此,触摸传感器能够对显示装置进行极其直接的输入。
作为这样的触摸传感器,各式各样的触摸传感器被实用化。其中,被称为静电容量方式的触摸传感器为,在触摸传感器面上流过微弱电流而形成电场,将被手指等导电体轻触的情况下的静电容量值的变化转换为电压的降低等并检测而得到的接触位置作为信号进行输出。
作为用于静电容量方式的触摸传感器,通常已知在一对对置的基板上形成有透明电极以及连接端子部的触摸传感器。此外,作为另一方式,透明电极以及连接端子部分别形成在一块透明基板的两面(以下为双面式触摸传感器)(例如专利文件1)。
双面式触摸传感器的构件数量较少,能够实现触摸传感器的薄膜化、基于辊对辊工艺的制造成为可能所带来的生产率提高等。此外,由于不需要贴合2块基板,因而能够避免2个透明电极之间的位置偏移等不良情况。
作为双面式触摸传感器的结构,该结构通常广泛用于以下情况:在由树脂、玻璃等构成的透明薄膜基材的表面上贴合上部保护薄膜与下部保护薄膜,其中,上部保护薄膜是在由金属图案形成的透明薄膜基材的一边对置面上覆盖透明导电膜而成的薄膜,下部保护薄膜是在透明薄膜基材的另一边对置面上覆盖透明导电膜而成的薄膜。
触摸传感器的电极与控制电路通过柔性印刷布线板(以下标注为FPC)连接。位于FPC的一边端部的布线板端子部连接到位于透明薄膜基材的正面侧端子以及背面侧端子。上部保护薄膜与下部保护薄膜在与FPC粘接部分对应的位置上设置切口部,使FPC与片端子部容易粘接。
将设置了切口部的上部保护薄膜与下部保护薄膜粘接到透明薄膜基材后,经过为了符合规定的产品尺寸而进行裁切的外形冲裁工序,制造双面式触摸传感器。
但是,外形冲裁模的内侧设置有缓冲材料,因而在通过外形冲裁模为了符合规定的产品尺寸而进行裁切时,上部保护薄膜被推抵在外形冲裁模的内侧的缓冲材料上,在垂直方向增加应力的情况下,相对于切口部的内侧仅露出透明薄膜基材这一层的情况,切口部的外侧露出透明薄膜基材、上部保护薄膜以及下部保护薄膜这三层,因而在切口部的内侧的边界部位应力集中,存在从切口部的开口端中的自切口部的内侧跨越至外侧的两端向透明薄膜基材产生裂纹的问题(参见图8)。
现有技术文献
专利文献
专利文献1:日本专利第4901660号公报
发明内容
发明所要解决的问题
本发明的目的在于,提供一种解决上述课题的抗裂性优异的触摸传感器。
用于解决问题的方法
为了达到上述目的,本发明的触摸传感器构成为,具有:透明薄膜基材;正面侧电极,其形成在透明薄膜基材的一方的表面上;正面侧端子,其形成在透明薄膜基材的形成有正面侧电极的表面上,并连接到正面侧电极;背面侧电极,其形成在透明薄膜基材的另一方的表面上;背面侧端子,其形成在透明薄膜基材的形成有背面侧电极的表面上,并连接到背面侧电极,且在俯视中与正面侧端子不重叠,透明薄膜基材在透明薄膜基材的一边的内侧具有连接端子部,透明薄膜基材被上部保护薄膜以及下部保护薄膜这一对薄膜层叠,在所述一对薄膜的双方中设置有将与正面侧端子以及背面侧端子对置的区域切除而成的切口部,在俯视中,成为从切口部的开口端朝向里部逐渐变宽的梯形形状。
此外,构成为,第一层叠体具有:透明薄膜基材;正面侧电极,其形成在透明薄膜基材的一方的表面上;正面侧端子,其形成在透明薄膜基材的形成有正面侧电极的表面上,并连接到正面侧电极;背面侧电极,其形成在透明薄膜基材的另一方的表面上;背面侧端子,其形成在透明薄膜基材的形成有背面侧电极的表面上,并连接到背面侧电极,且在俯视中与正面侧端子不重叠,在透明薄膜基材的一边的内侧具有连接端子部,第二层叠体具有:透明薄膜基材;背面侧电极,其形成在透明薄膜基材的背面侧的表面上;背面侧端子,其形成在透明薄膜基材的形成有背面侧电极的表面上,并连接到背面侧电极,且在俯视中与第一层叠体的连接端子部不重叠,在透明薄膜基材的一边的内侧具有连接端子部,所述第一层叠体以及第二层叠体中,第一层叠体与第二层叠体之间设置有粘接层,在第一层叠体中设置有将与第二层叠体的连接端子部对置的区域切除而成的切口部,在第二层叠体中设置有将与第一层叠体的连接端子部对置的区域切除而成的切口部,第一层叠体与第二层叠体被上部保护薄膜以及下部保护薄膜这一对薄膜层叠,在所述一对薄膜的双方中设置有将与第一层叠体的连接端子部以及第二层叠体的连接端子部对置的区域切除而成的切口部,在俯视中,第一层叠体、第二层叠体、上部保护薄膜、下部保护薄膜均成为从切口部的开口端朝向里部逐渐变宽的梯形形状。
此外,也可以构成为,在切口部中与外周线相接的所述梯形形状的上底的外角为30度以上60度以下。
此外,也可以构成为,在一对保护薄膜的切口部的开口端中的从切口部的内侧跨越至外侧的两端的区域中,在透明薄膜基材上设置增强层。
发明效果
本发明所涉及的抗裂性优异的触摸传感器构成为,具有:透明薄膜基材;正面侧电极,其形成在透明薄膜基材的一方的表面上;正面侧端子,其形成在透明薄膜基材的形成有正面侧电极的表面上,并连接到正面侧电极;背面侧电极,其形成在透明薄膜基材的另一方的表面上;背面侧端子,其形成在透明薄膜基材的形成有背面侧电极的表面上,并连接到背面侧电极,且在俯视中与正面侧端子不重叠,透明薄膜基材在透明薄膜基材的一边的内侧具有连接端子部,透明薄膜基材被上部保护薄膜以及下部保护薄膜这一对薄膜层叠,在所述一对薄膜的双方中设置有将与正面侧端子以及背面侧端子对置的区域切除而成的切口部,在俯视中,成为从切口部的开口端朝向里部逐渐变宽的梯形形状,因此通过设为从切口部的开口端朝向里部逐渐变宽的梯形形状,缓和在外形冲裁加压时对切口部的透明薄膜基材施加的应力,在透明薄膜基材的边界部位不会产生裂纹。
附图说明
图1是本发明的实施方式所涉及的触摸传感器的俯视图。
图2是本发明的实施方式所涉及的触摸传感器的俯视图以及剖视图。
图3是本发明的实施方式所涉及的触摸传感器的俯视图以及剖视图。
图4是本发明的实施方式所涉及的触摸传感器的局部俯视图。
图5是本发明的实施方式所涉及的触摸传感器的分解立体图。
图6是本发明的实施方式所涉及的触摸传感器的分解立体图。
图7是本发明的实施方式所涉及的触摸传感器的切口部的俯视图。
图8是表示触摸传感器的外形冲裁工序的剖视图。
图9是表示本发明的实施方式所涉及的触摸传感器的切口部的变形例的俯视图。
具体实施方式
以下,关于本发明的抗裂性优异的触摸传感器9,参照附图对实施方式的一例进行说明。
(触摸传感器)
本发明的触摸传感器9具有:透明薄膜基材1;正面侧电极5,其形成在透明薄膜基材1的一方的表面上;正面侧端子7,其形成在透明薄膜基材1的形成有正面侧电极5的表面上,并连接到正面侧电极5;背面侧电极6,其形成在透明薄膜基材1的另一方的表面上;以及背面侧端子8,其形成在透明薄膜基材1的形成有背面侧电极6的表面上,并连接到背面侧电极6,且在俯视中与正面侧端子7不重叠,透明薄膜基材1在透明薄膜基材1的一边的内侧具有连接端子部11,透明薄膜基材1被上部保护薄膜2以及下部保护薄膜3这一对薄膜层叠,在所述一对薄膜的双方中设置有将与正面侧端子7以及背面侧端子8对置的区域切除而成的切口部的触摸传感器9中,在俯视中,构成为从切口部4的开口端10朝向里部12逐渐变宽的梯形形状(参见图1中的(a)、(b))。
如图5例示,透明薄膜基材1为被上部保护薄膜2以及下部保护薄膜3这一对薄膜层叠的构造,防止来自外部的冲击导致的破损等,此外,由于被上部保护薄膜2以及下部保护薄膜3层压,从而防止来自外部的水分等浸入。
如图5例示,上部保护薄膜2以及下部保护薄膜3上分别设置有使设置在透明薄膜基材1上的正面侧端子7部以及背面侧端子8露出的切口部4,在俯视中,形成为从切口部4的开口端10朝向里部12逐渐变宽的梯形形状。
(透明薄膜基材)
作为构成透明薄膜基材1的材料,如果由具有透明性的树脂构成,则没有特别限定,但具体可以举出环烯烃聚合物(COP)、聚对苯二甲酸乙二醇酯(PET)等聚乙烯类树脂以及聚醚砜等聚酯类树脂等。此外,作为用于本发明的透明薄膜基材1的厚度,如果能够稳定地支承上述正面侧电极5、背面侧电极6、正面侧端子7、背面侧端子8、连接端子部11,则没有特别限定,但一般可以设为50μm~100μm范围内。此外,供给形态可以是辊状、片状中的任一种,根据加工方法、加工机械进行选择即可。
(正面侧电极·背面侧电极)
本发明中的正面侧电极5形成在上述透明薄膜基材1的一方的表面上,背面侧电极6形成在上述透明薄膜基材1的另一方的表面上。
作为构成这样的正面侧电极5以及背面侧电极6的材料,如果具有所希望的导电性,则没有特别限定,可以是具有透明性的透明性材料,也可以是不具有透明性的非透明性材料,但优选透明性材料。作为本发明中的透明性材料,可以使用一般用于触摸传感器9的材料,例如可以举出氧化铟锡(ITO)、氧化锌、氧化铟、锑掺杂氧化锡、氟掺杂氧化锡、铝掺杂氧化锌、钾掺杂氧化锌、硅掺杂氧化锌、氧化锌-氧化锡类、氧化铟-氧化锡类、氧化锌-氧化铟-氧化镁类等金属氧化物、以及这些金属氧化物被2种以上复合而成的材料。此外,作为非透明性材料,例如可以使用铝、钼、银、铬、铜等金属以及其合金等。
关于上述正面侧电极5以及背面侧电极6的形成图案、厚度等,可以设为与通常的触摸传感器相同。
(正面侧端子以及背面侧端子)
本发明中的正面侧端子7形成在透明薄膜基材1的形成有正面侧电极5的表面上,并连接到正面侧电极5,背面侧电极8形成在透明薄膜基材1的形成有背面侧电极6的表面上,在俯视中与正面侧端子7不重叠,并连接到背面侧电极6,直接形成在透明薄膜基材1的表面上(参见图5)。
此外,正面侧端子7以及背面侧端子8可以在连接端子部11的单位内,容易且有效地将触摸传感器9与FPC进行连接。另外,关于这样的连接端子部11所包含的端子数量等,根据在与FPC的连接中使用的加热工具等进行适当设定。
此外,连接端子部11通常由并列状地配置在透明薄膜基材1的同一表面上的多个端子组成(参见图1中的(b))。
图2是本发明的实施方式所涉及的触摸传感器9的(a)俯视图以及(b)剖视图。
另外,图2中的(b)的剖视图是与图2中的(a)的俯视图中的A-A线处的截面对应的剖视图。此外,图5是本发明的实施方式所涉及的触摸传感器9的分解立体图。
作为本发明中的相邻的正面侧端子7以及背面侧端子8的间隔,没有特别限定,可以在触摸传感器9中设为通常的间隔。
作为本发明中的构成正面侧端子7以及背面侧端子8的材料,如果可以得到所希望的导电性,则没有特别限定,例如可以使用铝、银、铜或者它们的合金等。
关于上述正面侧端子7部以及背面侧端子8部的端子宽度、厚度以及俯视形状、连接端子部11内的端子之间的间隔,可以设为与通常的触摸传感器相同。
(上部保护薄膜·下部保护薄膜)
本发明中的上部保护薄膜2以及下部保护薄膜3如果是具有绝缘性的材料,则没有特别限定,但如果是以覆盖上述电极的方式形成的材料,则优选具有透明性的材料。作为具有这样的绝缘性以及透明性的上部保护薄膜2以及下部保护薄膜3,例如可以举出丙烯酸树脂、SiO2等、聚氨酯类树脂、聚酯类树脂、聚苯乙烯类树脂、聚酰胺类树脂、氯化聚烯烃树脂、氯乙烯-乙酸乙烯酯共聚物树脂、环化橡胶、或者香豆酮-茚树脂等热塑性树脂。另外,也可以使用表面保护用的粘接薄膜(PSA)。
(切口部)
本发明中的切口部4通过至少将与正面侧端子7部以及背面侧端子8部对置的区域切除而形成。
切口部4具有里部12、以及在里部12的两端延续到开口端10的侧部19。该切口部4在俯视中,形成为从开口端10朝向里部12逐渐变宽的梯形形状(参见图3、图5)。
通过设为这样的梯形形状,缓和在外形冲裁加压时对切口部4的透明薄膜基材1施加的应力,透明薄膜基材1的边界部位不易产生裂纹。切口部4的梯形形状的外角15优选为30度以上60度以下的范围内。设为这样的范围内,更加缓和了对切口部4的透明薄膜基材1施加的应力,透明薄膜基材1的边界部位将更不易产生裂纹。梯形形状的外角15例如可以设为45度(参见图3、图5)。
图9表示本实施方式的变形例。
作为在切口部4中,缓和在外形冲裁加压时对切口部4的透明薄膜基材1施加的应力、使透明薄膜基材1的边界部位不易产生裂纹的方法,如果外角15在30度以上60度以下的范围内,则也可以将侧部19切为曲线状,外角15例如可以设为45度(参见图9中的(a))。
此外,作为缓和在外形冲裁加压时对切口部4的透明薄膜基材1施加的应力、使透明薄膜基材1的边界部位不易产生裂纹的方法,如果外角15在30度以上60度以下的范围内,则也可以将侧部19切为多边形状,外角15例如可以设为45度(参见图9中的(b))。
此外,根据透明薄膜基材1的性质等,在将任何一个外角15设为30度以上60度以下的范围内,也可以将侧部19切为曲线状、多边形状,任何一个外角15例如可以设为45度(参见图9中的(c))。
此外,作为缓和在外形冲裁加压时对切口部4的透明薄膜基材1施加的应力、使透明薄膜基材1的边界部位不易产生裂纹的方法,如果外角15在30度以上60度以下的范围内,则也可以不使两侧的外角15调整到相同角度。
也就是说,如果外角15在30度以上60度以下的范围内,则切口部4的形状可以为任何形状。
在一对保护薄膜的切口部4的开口端10中,在从切口部4的内侧跨越至外侧的两端的区域中,可以在透明薄膜基材1上设置增强材料14。通过设置增强材料14,进一步缓和在外形冲裁加压时对切口部4的透明薄膜基材1施加的应力,透明薄膜基材1的边界部位能够更加不易产生裂纹(参见图4中的(a)、(b)、图7)。
图4是本发明的实施方式所涉及的触摸传感器9的局部俯视图,图4中的(a)是没有设置增强材料14的局部俯视图,图4中的(b)是设置有增强材料14的局部俯视图。
增强材料14的材料可以与构成电极的材料相同,也可以是不同的材料,没有特别限定。
(触摸传感器)
本发明的触摸传感器9至少具有透明薄膜基材1、正面侧电极5、正面侧端子7、背面侧电极6、背面侧端子8、上部保护薄膜2以及下部保护薄膜3。但根据需要也可以具有其他结构。作为这样的其他结构,例如可以举出将电极以及端子进行连接的引绕布线16。
作为上述引绕布线16,可以与用于通常的触摸传感器9的布线相同。具体来说,可以使用由与端子相同的材料组成的布线。此外,作为这样的引绕布线16的线宽度,可以设为10μm~100μm左右。
对本发明的第二方式进行说明。
即,第一层叠体21具有:透明薄膜基材1;正面侧电极5,其形成在透明薄膜基材1的一方的表面上;正面侧端子7,其形成在透明薄膜基材1的形成有正面侧电极5的表面上,并连接到正面侧电极5;背面侧电极6,其形成在透明薄膜基材1的另一方的表面上;以及背面侧端子8,其形成在透明薄膜基材1的形成有背面侧电极6的表面上,并连接到背面侧电极6,且在俯视中与正面侧端子7不重叠,在透明薄膜基材1的一边的内侧具有连接端子部11,第二层叠体22具有透明薄膜基材1;背面侧电极6,其形成在透明薄膜基材1的背面侧的表面上;背面侧端子8,其形成在透明薄膜基材1的形成有背面侧电极6的表面上,并连接到背面侧电极6,且在俯视中与第一层叠体21的连接端子部11不重叠,在透明薄膜基材1的一边的内侧具有连接端子部11,在所述第一层叠体21以及第二层叠体22中,第一层叠体21与第二层叠体22之间设置有粘接层20。在第一层叠体21中,设置有将与第二层叠体22的连接端子部11对置的区域切除而成的切口部4。在第二层叠体22中,设置有将与第一层叠体21的连接端子部11对置的区域切除而成的切口部4。第一层叠体21与第二层叠体22被上部保护薄膜2以及下部保护薄膜3这一对薄膜层叠,在所述一对薄膜的双方中,设置有将与第一层叠体21的连接端子部11以及第二层叠体22的连接端子部11对置的区域切除而成的切口部4的触摸传感器中,在俯视中,第一层叠体21、第二层叠体22、上部保护薄膜2、下部保护薄膜3均具备从切口部4的开口端10朝向里部12逐渐变宽的梯形形状(参见图3、图6)。
上述方式将至少设置了正面侧电极5、正面侧端子7、背面侧电极6、背面侧端子8、连接端子部11的透明薄膜基材1作为第一层叠体21,将至少设置了背面侧电极6、背面侧端子8、连接端子部11的透明薄膜基材1作为第二层叠体22,第一层叠体21与第二层叠体22被上部保护薄膜2以及下部保护薄膜3这一对薄膜层叠,其他与之前所说明的发明相同。
上述方式对从例如在发光材料中使用有机物质的发光二极管(OLED)、液晶显示器(LCD)向触摸传感器9释放出的电磁能量(所谓的噪音)具有优秀的遮挡效果。
图3是本发明的实施方式所涉及的触摸传感器9中的(a)俯视图以及(b)剖视图。
另外,图3中的(b)的剖视图是与图3中的(a)的俯视图中的A-A线处的截面对应的剖视图。此外,图6是本发明的实施方式所涉及的触摸传感器9的分解立体图。
以与第一层叠体21的连接端子部11在俯视中不重叠的方式,设置有第二层叠体22的连接端子部11。在与FPC粘接部分对应的位置中,在第一层叠体21中,在与第二层叠体22的连接端子部11对置的区域设置有切口部4。此外,在第二层叠体22中,在与第一层叠体21的连接端子部11对置的区域设置有切口部4。进一步地,在上部保护薄膜2以及下部保护薄膜3这一对薄膜的双方中,在与第一层叠体21的连接端子部11以及第二层叠体22的连接端子部11对置的区域设置有切口部4。
此外,在第一层叠体21与第二层叠体22之间,设置有用于粘接第一层叠体21与第二层叠体22的粘接层20。
本发明中的切口部4通过至少将与正面侧端子7部以及背面侧端子8部对置的区域切除而形成。切口部4具有里部12、以及在里部12的两端延续到开口端10的侧部19。该切口部4在俯视中,形成为从开口端10朝向里部12逐渐变宽的梯形形状。
切口部4的梯形形状的外角15优选为30度以上60度以下的范围内。作为缓和在外形冲裁加压时对切口部4的透明薄膜基材施加的应力、使透明薄膜基材1的边界部位不易产生裂纹的方法,梯形形状的外角15例如可以设为45度。
除了上述以外,与第一方式相同即可。另外,根据目的,例如也可以将第一层叠体21设为多个层叠,此外,也可以在第一层叠体21的下方层叠多个第二层叠体22。
实施例
形成透明薄膜基材1的材料是环烯烃聚合物,厚度为100μm。
形成正面侧电极5以及背面侧电极6的材料为氧化铟锡(ITO)。
形成正面侧端子7以及背面侧端子8的材料为铜。
形成上部保护薄膜2以及下部保护薄膜3的材料为表面保护用的粘接薄膜(PSA)。
切口部4形成为从开口端10朝向里部12逐渐变宽的梯形形状,将外角15设为45度,通过外形冲裁模17进行冲裁,得到触摸传感器9。
这样得到的触摸传感器9在透明薄膜基材1的边界部位不会产生裂纹。
此外,比较例1将切口部4的侧部19无倾斜地设为矩形形状,将外角15设为90度,通过外形冲裁模进行冲裁,得到触摸传感器9。这样得到的触摸传感器9在透明薄膜基材1的边界部位会产生裂纹。另外,在本比较例中,除上述角度以外,与实施例1相同。
此外,比较例2形成为从切口部4的开口端10朝向里部12逐渐变窄的锥形形状,将外角15设为135度,通过外形冲裁模17进行冲裁,得到触摸传感器9。这样得到的触摸传感器9在透明薄膜基材1的边界部位会产生裂纹。另外,在本比较例中,除上述角度以外,与实施例1相同。
附图标记说明
1:透明薄膜基材;2:上部保护薄膜;3:下部保护薄膜;4:切口部:5:正面侧电极:6:背面侧电极;7:正面侧端子;8:背面侧端子;9:触摸传感器;10:开口端;11:连接端子部;12:里部;13:外周线;14:增强材料;15:外角;16:引绕布线;17:外形冲裁模;18:缓冲材料;19:侧部;20;粘接层;21:第一层叠体;22:第二层叠体。

Claims (4)

1.一种触摸传感器,其特征在于,
所述触摸传感器具有:
透明薄膜基材;
正面侧电极,其形成在透明薄膜基材的一方的表面上;
正面侧端子,其形成在透明薄膜基材的形成有正面侧电极的表面上,并连接到正面侧电极;
背面侧电极,其形成在透明薄膜基材的另一方的表面上;以及
背面侧端子,其形成在透明薄膜基材的形成有背面侧电极的表面上,并连接到背面侧电极,且在俯视中与正面侧端子不重叠,
透明薄膜基材在透明薄膜基材的一边的内侧具有连接端子部,
透明薄膜基材被上部保护薄膜以及下部保护薄膜这一对薄膜层叠,
在所述一对薄膜的双方中,设置有将与正面侧端子以及背面侧端子对置的区域切除而成的切口部,
在俯视中,成为从切口部的开口端朝向里部逐渐变宽的梯形形状。
2.根据权利要求1所述的触摸传感器,其特征在于,
第一层叠体具有:
透明薄膜基材;
正面侧电极,其形成在透明薄膜基材的一方的表面上;
正面侧端子,其形成在透明薄膜基材的形成有正面侧电极的表面上,并连接到正面侧电极;
背面侧电极,其形成在透明薄膜基材的另一方的表面上;以及
背面侧端子,其形成在透明薄膜基材的形成有背面侧电极的表面上,并连接到背面侧电极,且在俯视中与正面侧端子不重叠,
在透明薄膜基材的一边的内侧具有连接端子部,
第二层叠体具有:
透明薄膜基材;
背面侧电极,其形成在透明薄膜基材的背面侧的表面上;以及
背面侧端子,其形成在透明薄膜基材的形成有背面侧电极的表面上,并连接到背面侧电极,且在俯视中与第一层叠体的连接端子部不重叠,
在透明薄膜基材的一边的内侧具有连接端子部,
在所述第一层叠体以及第二层叠体中,
第一层叠体与第二层叠体之间设置有粘接层,
在第一层叠体上设置有将与第二层叠体的连接端子部对置的区域切除而成的切口部,
在第二层叠体上设置有将与第一层叠体的连接端子部对置的区域切除而成的切口部,
第一层叠体与第二层叠体被上部保护薄膜以及下部保护薄膜这一对薄膜层叠,
在所述一对薄膜的双方中,
设置有将与第一层叠体的连接端子部以及第二层叠体的连接端子部对置的区域切除而成的切口部,
在俯视中,第一层叠体、第二层叠体、上部保护薄膜、下部保护薄膜均成为从切口部的开口端朝向里部逐渐变宽的梯形形状。
3.根据权利要求1~2所述的触摸传感器,其特征在于,
在切口部中,与外周线相接的所述梯形形状的上底的外角为30度以上60度以下。
4.根据权利要求1~3所述的触摸传感器,其特征在于,
在一对保护薄膜的切口部的开口端中的从切口部的内侧跨越至外侧的两端的区域中,在透明薄膜基材上设置有增强层。
CN202080023631.9A 2019-10-23 2020-09-08 触摸传感器 Pending CN113614682A (zh)

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