A Pressure-Sensitive Impedance-Type Touch Panel With High Sensitivity and Water-Resistance

Shi-Yu Liu, Jin Pan, Han-Ping Shieh

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


A pressure-sensitive impedance-type touch panel which detects impedance of sensors to identify touch position and applied pressure is demonstrated. It shows high pressure sensitivity in the low pressure regime, high water-resistance, low hysteresis, and high durability, and enables multilevel pressure detection. Because impedance-type sensors act as touch sensors as well as pressure sensors, fabrication process and device architecture can be simplified. Two substrates of the touch panel are bonded together without spacers or bezel tapes in between, improving the uniformity of compressive strain in current pressure-sensitive touch panels. The touch solution offers a new measurement mechanism for sensors involving non-conductive to conductive transition and has great potential for application in wearable interactive devices.
Original languageEnglish
Pages (from-to)1061-1064
Number of pages4
JournalIeee Electron Device Letters
Issue number7
StatePublished - Jul 2018

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