CN106249957A - 透明的三维触控结构 - Google Patents
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Abstract
本发明公开的透明的三维触控结构，由下往上依次包括透明基底、第一透明导电层、介质层、第二透明导电层、光学胶层、第三透明导电层和保护层；能够将压力传感器与电容式触摸屏结合成一个整体，这种三维触控结构技术即是完全透明的，能很便地与显示屏贴合，同时这种整体式三维触控结构技术能符合电子产品轻薄化的发展方向。
Description
技术领域
本发明涉及触控领域，具体涉及一种透明的三维触控结构。
背景技术
传统的电容屏随着智能手机的发展得到了非常好的应用，同时电容屏也丰富了智能终端的输入方式，它以其比键盘更友好的方式得到了广大用户的欢迎。但电容屏是一种二维的触控技术，苹果公司引入压力传感器实现了三维触控。三维触控自首次出现以来受到了广泛的重视，我们不仅可以在二维上得以输入信号，同时在第三维度能通过压力的大小进行输入。但是目前的压力传感器是一种与电容屏分离的器件，且无法实现透明。这与智能终端如智能手机的轻薄化发展方向相背离。
本发明采用一种透明的三维触控结构，将压力传感器与电容式触摸屏结合成一个整体，这种三维触控结构技术即是完全透明的，能很方面地与显示屏贴合，同时这种整体式三维触控结构技术能符合电子产品轻薄化的发展方向。
发明内容
有鉴于此，本发明的目的是克服现有技术中的缺陷，提供一种透明的三维触控结构；由下往上依次包括透明基底、第一透明导电层、介质层、第二透明导电层、光学胶层、第三透明导电层和保护层；所述第二透明导电层、光学胶层和第三透明导电层组成电容式触摸屏，第一透明导电层和介质层形成压力传感器。
进一步，所述第一透明导电层、第二透明导电层和第三透明导电层均由石墨烯材料制备而成。
进一步，所述介质层为PDMS、硅胶、UV胶中的一种；介质层的厚度为10-500μm。
本发明的有益效果是：本发明公开的一种透明的三维触控结构，能够将压力传感器与电容式触摸屏结合成一个整体，这种三维触控结构技术即是完全透明的，能很便地与显示屏贴合，同时这种整体式三维触控结构技术能符合电子产品轻薄化的发展方向。
附图说明
下面结合附图和实施例对本发明作进一步描述：
图1为本发明的结构示意图；
图2为本发明的制作流程图。
具体实施方式
图1为本发明的结构示意图，图2为本发明的制作流程图，如图所示，本实施例中的透明的三维触控结构；由下往上依次包括透明基底1、第一透明导电层2、介质层3、第二透明导电层4、光学胶层5、第三透明导电层6和保护层7；所述第二透明导电层、光学胶层和第三透明导电层组成电容式触摸屏，第一透明导电层和介质层形成压力传感器；第二透明导电层4、光学胶层5、第三透明导电层6可组成互容式电容屏，互容式电容屏可采用CFF(COVER+FILM+FILM)结构实现；当然，第一透明导电层2、第二透明导电层4和第三透明导电层6通过激光刻蚀成规定图形，形成互感电容矩阵的图形，配合外部必要电路实现平面二维触控，第三透明导电层6作为触摸屏的电场发射层，第二透明导电层4作为触摸屏的接受层，进而第二透明导电层4、光学胶层5、第三透明导电层6组成传统电容触摸屏，实现平面二维触控，该结构属于现有技术，在此不再赘述，而所述介质层3采用弹性材料制备而成；所述第一透明导电层的表面通过激光刻蚀有形成自感电容的规定图形；第一透明导电层2在受到垂直于屏幕方向的力时发生形变使设置于第一透明导电层2作为接收电场的矩阵型接收电极产生感应电流，根据感应电流的大小转化为压力大小信号，即第一透明导电层2作为第三维(即压力传感器)的发射层及接受层；当手指接触时，信号传输层发出电场，手指接触区域在接收层(即第二透明导电层4)接收到不同的电压或者电流信号，从而实现平面触控；而第一透明导电层2和介质层3可组成压力式传感器，外部电源对第一透明导电层2通电流时，会产生一定电场，手指按下的程度不同，导致该层中输出的电流产生矩阵型接收电极产生感应电流变化，进而输出分析，从而实现压力传感。
本实施例中，所述第一透明导电层2、第二透明导电层4和第三透明导电层6均由石墨烯材料制备而成；利用石墨烯良好的导电性、轻薄性、很高的透过率、柔性等特性，才能实现柔性透明三维触控。
本实施例中，所述介质层为PDMS、硅胶、UV胶中的一种；介质层的厚度为10-500μm，该厚度利于介质层的回复效果，且力学传递更灵敏；本实施例优选为250μm的PDMS材料(即聚二甲基硅氧烷)，该介质层既可以是介电阻隔层，也能在下压的过程中起到缓冲的作用，使得压力不至于破坏三维触控屏。
最后说明的是，以上实施例仅用以说明本发明的技术方案而非限制，尽管参照较佳实施例对本发明进行了详细说明，本领域的普通技术人员应当理解，可以对本发明的技术方案进行修改或者等同替换，而不脱离本发明技术方案的宗旨和范围，其均应涵盖在本发明的权利要求范围当中。
Claims (3)
1.一种透明的三维触控结构，其特征在于：由下往上依次包括透明基底、第一透明导电层、介质层、第二透明导电层、光学胶层、第三透明导电层和保护层；所述第二透明导电层、光学胶层和第三透明导电层组成电容式触摸屏，第一透明导电层和介质层形成压力传感器。
2.根据权利要求1所述的透明的三维触控结构，其特征在于：所述第一透明导电层、第二透明导电层和第三透明导电层均由石墨烯材料制备而成。
3.根据权利要求1或2所述的透明的三维触控结构，其特征在于：所述介质层为PDMS、硅胶、UV胶中的一种；介质层的厚度为10-500μm。
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