文章基本信息

标题：Touchpad for Force and Location Sensing
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作者：Kim, Dong-Ki ; Kim, Jong-Ho ; Kwon, Hyun-Joon 等
期刊名称：ETRI Journal
印刷版ISSN：1225-6463
电子版ISSN：2233-7326
出版年度：2010
卷号：32
期号：5
页码：722-728
DOI：10.4218/etrij.10.1510.0073
语种：English
出版社：Electronics and Telecommunications Research Institute
摘要：This paper presents the design and fabrication model of a touchpad based on a contact-resistance-type force sensor. The touchpad works as a touch input device, which can sense contact location and contact force simultaneously. The touchpad is 40 mm wide and 40 mm long. The touchpad is fabricated by using a simple screen printing technique. The contact location is evaluated by the calibration setup, which has a load cell and three-axis stages. The location error is approximately 4 mm with respect to x-axis and y-axis directions. The force response of the fabricated touchpad is obtained at three points by loading and unloading of the probe. The touchpad can detect loads from 0 N to 2 N. The touchpad shows a hysteresis error rate of about 11% and uniformity error rate of about 3%.
关键词：Touch input device;touchscreen;touchpad;contact-resistance-type force sensor;contact force;contact location