Piezoelectric vs. Capacitive Based Force Sensing in Capacitive Touch Panels
Piezoelectric vs. Capacitive Based Force Sensing in Capacitive Touch Panels
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DOI：
10.1109/access.2016.2591535
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发表时间：
2016-01-01
期刊：
影响因子：
3.9
通讯作者：
Nathan, Arokia
中科院分区：
文献类型：
--
作者：
Gao, Shuo;Arcos, Victor;Nathan, Arokia
高灵敏度力感测是电容触摸屏面板的期望功能。在本文中，我们报告的动态力检测技术，利用压电材料。力-电压响应度的调查，广泛使用的堆叠，与各种面板厚度和触摸位置。基于理论分析和仿真结果，最大响应度和信噪比分别达到0.42 V/N和59.1 dB。所提出的技术成功地实现了力感测，增强了人机交互体验。
High sensitivity force sensing is a desirable function of capacitance touch screen panels. In this paper, we report on a dynamic force detection technique by utilizing piezoelectric materials. The force-voltage responsivities are investigated for four widely used stack-ups, with various panel thicknesses and touch locations. Based on the theoretical analysis and simulation results, the maximum responsivity and the signal-to-noise ratio are achieved at 0.42 V/N and 59.1 dB, respectively. The proposed technique implements force sensing successfully, enhancing the human-machine interactivity experience.