CN110421907A - 一种柔性触控装置及其制作方法 - Google Patents

一种柔性触控装置及其制作方法 Download PDF

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CN110421907A
CN110421907A CN201910772100.9A CN201910772100A CN110421907A CN 110421907 A CN110421907 A CN 110421907A CN 201910772100 A CN201910772100 A CN 201910772100A CN 110421907 A CN110421907 A CN 110421907A
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王强
许鹏俊
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Minjiang University
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Abstract

本发明涉及一种柔性触控装置及其制作方法，所述柔性触控装置由上导电层、中间隔离层和下导电层组成，其特征在于，所述上导电层与下导电层分别由在已经制备好的复合导电材料上布置两条相互平行且与对应导电层边长相等的金属导线制成，所述上导电层与下导电层中的两组金属导线布线方向垂直，所述金属导线由纱线等距缠绕固定在所述复合导电材料上，并用绝缘材料覆盖，上、下层间设有网状隔离层，所述上导电层、中间隔离层和下导电层依次堆叠好后，所述两组金属导线被引入按顺序焊接到触摸屏控制器芯片上。本发明的有益效果为方便携带、感应灵敏、稳定性较强。

Description

一种柔性触控装置及其制作方法
技术领域
本发明涉及智能纺织领域，尤其涉及一种柔性触控装置及其制作方法。
背景技术
智能纺织品是一种集机织物、针织物的性能和实用功能的新型功能性纺织材料。许多纺织研究的领悟都有出现它的身影。它在仿生学的概念基础上，不仅具备模拟生命系统的功能，还可以对变化的环境进行感知和响应。经过20多年的学科学者们的努力研究，智能纺织品已经成为21 世纪新时尚哲学的基础，在电子电气、医疗卫生保健或军用纺织品领域发挥着重要作用。
基于电智能纺织品的研究上的传感器研究应用，主要由柔性材料制成，如导电聚合物、导电纤维或导电织物。它们可以监测信号的变化，如应变、压力、位移、温度、酸碱等，并及时作出反应，可以在医疗健康监测、通信、运动、航天航空等领域中运用广泛。人们对于智能服装的舒适性和功能性方面的要求越来越高，要求智能服装集重量轻、耐洗耐磨、透气多种功能于一身。这些新的要求也就意味着生理监测传感器不仅仅只是服务于特定的环境和人群。
虽然智能纺织材料的研究已经相当深入，并取得了许多成果，但在发展过程中仍存在着许多问题和挑战。由于专业的实验设备和检测设备的缺乏，智能纺织材料的研究受到了局限，现有的实验仪器设备限制了智能纺织材料的试验和研究，对于智能纺织材料品质的柔软性和回弹性的和谐统一问题又成为一大难题。由于需要模拟人体皮肤，所以要求智能纺织材料具备很高的柔性和弹性。
发明内容
本发明的目的在于提供一种柔性触控装置，利用制备该智能纺织的材料与皮肤接触时的界面阻抗变化来进行感应与回馈，将通过虚拟现实系统实现智能纺织品的力学感应与人体活动的响应与互动。
为了达到上述目的，本发明的技术方案为：一种柔性触控装置，由上导电层、中间隔离层和下导电层组成，其特征在于，所述上导电层与下导电层分别由在已经制备好的复合导电材料上布置两条相互平行且与对应导电层边长相等的金属导线制成，所述上导电层与下导电层中的两组金属导线布线方向垂直，所述金属导线由纱线等距缠绕固定在所述复合导电材料上，并用绝缘材料覆盖，所述上导电层、中间隔离层和下导电层依次堆叠好后，所述两组金属导线被引入按顺序焊接到触摸屏控制器芯片上。
进一步的，所述复合导电材料为炭黑硅胶复合导电材料。
进一步的，所述中间隔离层为是网状织物。
进一步的，所述金属导线为四根铜芯线拧成一股。
进一步的，所述中间隔离层还设置有网状隔离层隔离所述上导电层与下导电层。
本发明还涉及一种柔性触控装置的制作方法，包括如下步骤：
(1)制作复合导电材料；
(2)在已经制备好的复合导电材料上布置两条相互平行且与对应导电层边长相等的金属导线，将金属导线用纱线等距缠绕固定在所述复合导电材料上，并用绝缘材料覆盖，完成上导电层制作；
(3)在已经制备好的复合导电材料上布置两条相互平行且与对应导电层边长相等的金属导线，并且导线方向与步骤(2)中导线布线方向垂直，将金属导线用纱线等距缠绕固定在所述复合导电材料上，并用绝缘材料覆盖，完成下导电层制作；
(4)将上导电层、中间隔离层和下导电层依次堆叠；
(5)两组金属导线被引入按顺序焊接到触摸屏控制器芯片上。
本发明的有益效果为方便携带、感应灵敏、稳定性较强。
附图说明
图1为本发明的结构图；
图2为本发明电路布线图。
具体实施方式
下面结合附图和具体实施方式，对本发明做进一步说明。
本发明所述柔性触控装置结构如图1所示。柔性触控装置由上导电层1、中间隔离层2和下导电层3组成。所述上导电层1与下导电层3在已经制备好的A4纸大小(297mm×210mm)的炭黑硅胶复合导电材料上布置铜线，使铜线的长度与对应炭黑硅胶复合导电材料边长相等，引出铜线。再在铜线上用普通缝纫线环绕固定，最后用绝缘材料覆盖于铜线上，避免铜线因为触摸垫的移动而发生错位,影响位置感知的准确度。且从一定程度上保证通电后导电层上的电压等势线为均匀排列的等距离直线。中间隔离层2设置双面粘胶薄海绵片隔离上下层，孔洞织物在厚度方面适中，提供了较好的弹性，有利于触摸板的弹性恢复且分隔上下导电层。且孔洞织物片分布规律，孔眼分布均匀且大小合适，为上导电层1在触摸时提供接触通道得以接触到下导电层3。
中间隔离层2的材料需要有较好的弹性回复性，可以是网状硅胶隔离层，也可以是网状织物等。无论何种材料，隔离网的孔隙宜选用2mm×2mm。若孔隙太小，在触摸时，上层导电层1不能很好的接触到下层导电层3，造成柔性位置感知设备的反应灵敏度不如预想；若孔隙太大则导致上下导电层会直接接触，失去感知能力。本发明所采用孔径为2mm×2mm的网状织物作为柔性位置感知设备的中间隔离层2。
本发明所述柔性触控装置的电路布线采用四线电阻式触摸屏的原理如图2所示，上导电层1与下导电层3的制作方法为在A4纸大小(297mm×210mm)的炭黑硅胶复合导电材料上采用纱线等距离缠绕固定的方法，将四根铜芯线拧成一股，用纱线以2cm 大小等距离将铜芯线缠绕固定在所述炭黑硅胶复合导电材料上。其中上导电层1 与下导电层3中布置两条相互平行且与对应导电层边长相等的金属导线制成，所述上导电层1与下导电层3中的两组金属导线布线方向垂直。将中间隔离层2放在已经布置好线路的上下导电层之间，最终将引出的四根金属导线1.1、1.2、2.1 、2.2按顺序焊接到触摸屏控制器芯片上。
本领域的技术人员将看到，可以在不背离其宽泛的发明概念的情况下对上述实施例进行更改。因此，应该理解本发明不限于所公开的特定实施例，而是意图涵盖由附加权利要求定义的本发明概念的精神和范围内的修改。

Claims (6)

1.一种柔性触控装置，由上导电层、中间隔离层和下导电层组成，其特征在于，所述上导电层与下导电层分别由在已经制备好的复合导电材料上布置两条相互平行且与对应导电层边长相等的金属导线制成，所述上导电层与下导电层中的两组金属导线布线方向垂直，所述金属导线由纱线等距缠绕固定在所述复合导电材料上，并用绝缘材料覆盖，所述上导电层、中间隔离层和下导电层依次堆叠好后，所述两组金属导线被引入按顺序焊接到触摸屏控制器芯片上。
2.如权利要求1所述的柔性触控装置，其特征在于，所述复合导电材料为炭黑硅胶复合导电材料。
3.如权利要求1所述的柔性触控装置，其特征在于，所述中间隔离层为是网状织物。
4.如权利要求1至3任一所述柔性触控装置，其特征在于，所述金属导线为四根铜芯线拧成一股。
5.如权利要求1至3任一所述柔性触控装置，其特征在于，所述中间隔离层还设置有网状隔离层隔离所述上导电层与下导电层。
6.一种柔性触控装置的制作方法，包括如下步骤：
(1)制作复合导电材料；
(2)在已经制备好的复合导电材料上布置两条相互平行且与对应导电层边长相等的金属导线，将金属导线用纱线等距缠绕固定在所述复合导电材料上，并用绝缘材料覆盖，完成上导电层制作；
(3)在已经制备好的复合导电材料上布置两条相互平行且与对应导电层边长相等的金属导线，并且导线方向与步骤(2)中导线布线方向垂直，将金属导线用纱线等距缠绕固定在所述复合导电材料上，并用绝缘材料覆盖，完成下导电层制作；
(4)将上导电层、中间隔离层和下导电层依次堆叠；
(5)两组金属导线被引入按顺序焊接到触摸屏控制器芯片上。
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