纺织学报 ›› 2013, Vol. 34 ›› Issue (9): 53-0.

• 纺织工程 • 上一篇    下一篇

电容式柔性触控装置的研制

蒋晶晶1,丁辛1,2   

    1. 东华大学纺织学院
    2. 东华大学纺织面料技术教育部重点实验室
  • 收稿日期:2012-10-19 修回日期:2012-12-30 出版日期:2013-09-15 发布日期:2013-09-12
  • 通讯作者: 丁辛 E-mail:xding@dhu.edu.cn

Development of flexible capacitive touch control device

  • Received:2012-10-19 Revised:2012-12-30 Online:2013-09-15 Published:2013-09-12

摘要: 为了克服现有柔性触控装置分辨率较低及结构复杂等问题,应用电容式触控原理,开发了一种以单层非织碳膜为感应材料的柔性触控装置。测试表明,直角电极长度为72mm的触控装置在126mm×72mm的工作区域内,X方向的线性度为?1.40%,Y方向的线性度为?2.39%;分辨率为251dpi×243dpi。为了进一步讨论装置的触控精度,定义了偏移率。测试表明:偏移率在6%以上的感应点集中于工作区域边缘;增加电极长度有利于提高线性区域面积但幅度并不大。基于柔性与可携带性需求,选用点电极制作触控装置较优。

关键词: 柔性触控装置, 电容式, 非织碳膜, 线性度, 偏移率, 电极

Abstract: The existing flexible touch devices are confined to low resolution and complex structures. For solving these problems, a flexible touch device is developed based on capacitive principle and made of a single layer non-woven carbon film. Within a working area of 128mm×72mm in the touch pad with L-shape electrodes, of which the length of each side is 72mm, the test results show that the linearity of the touch device in X and Y directions is ?1.40% and ?2.39%, respectively, and the resolution reaches as high as 251dpi×243dpi. To discuss more on controlling accuracy of the device, the deviation rate is defined. The test results shows that, the control positions whose deviation rate is greater than 6% are located near the edges of the work area. In addition, to increase the side length of L-shape electrodes has positive but minor effects to improve linearity. Therefore, it would be better to apply point electrodes to the touch device for flexibility and portability.

Key words: flexile touch control device, capacitive, non-woven carbon film, linearity, deviation rate, electrode

中图分类号: 

  • TP 212.1
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