Stretch not flex: programmable rubber keyboard

Stretchability is a property that brings versatility and design freedom to human interface devices. We present a soft, flexible and stretchable keyboard made from a dielectric elastomer sensor sheet. Using a multi-frequency capacitance sensing technique based on a transmission line model, we demonst...

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Bibliographic Details
Published inSmart materials and structures Vol. 25; no. 1; pp. 15012 - 15018
Main Authors Xu, Daniel, Tairych, Andreas, Anderson, Iain A
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.01.2016
Subjects
2 dimension
Capacitance
Degrees of freedom
Detection
Devices
dielectric elastomer
Keyboards
local capacitance
multi-frequency
Sheets
Smart materials and structures
stretchable keyboard
transmission line
Transmission lines
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Summary:Stretchability is a property that brings versatility and design freedom to human interface devices. We present a soft, flexible and stretchable keyboard made from a dielectric elastomer sensor sheet. Using a multi-frequency capacitance sensing technique based on a transmission line model, we demonstrate how this keyboard can detect touch in two dimensions, programmable to increase the number of keys and into different layouts, all without adding any new wires, connections or modifying the hardware. The method is efficient and scalable for large sensing systems with multiple degrees of freedom.
Bibliography:SMS-102410.R1
ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:0964-1726
1361-665X
DOI:10.1088/0964-1726/25/1/015012