Title
Touchscreen tags based on thin-film electronics for the Internet of Everything
Author
Papadopoulos, N.
Qiu, W.
Ameys, M.
Smout, S.
Willegems, M.
Deroo, F.
van der Steen, J.L.
Kronemeijer, A.J.
Dehouwer, M.
Mityashin, A.
Gehlhaar, R.
Myny, K.
Publication year
2019
Abstract
Capacitive touchscreens are increasingly widespread, featuring in mobile phones and tablets, as well as everyday objects such as cars and home appliances. As a result, the interfaces are uniquely placed to provide a means of communication in the era of the Internet of Everything. Here, we show that commercial touchscreens can be used as reader interfaces for capacitive coupled data transfer. The transfer of data to the touchscreen is achieved using a 12 bit thin-film capacitive radio-frequency identification tag powered by a thin-film battery or a thin-film photovoltaic cell that converts light from the screen. The thin-film integrated circuit has a 0.8 cm2 on-chip monolithic antenna, employs 439 transistors and dissipates only 31 nW of power at a supply voltage of 600 mV. The chip has an asynchronous data rate of up to 36 bps, which is limited by the touchscreen readout electronics.
Subject
Antennas
Data transfer
Domestic appliances
Photoelectrochemical cells
Photovoltaic cells
Radio frequency identification (RFID)
Thin films
Asynchronous data
On chips
Radio frequency identification tags
Readout Electronics
Supply voltages
Thin film battery
Thin film electronics
Thin film photovoltaic cells
Thin film circuits
To reference this document use:
http://resolver.tudelft.nl/uuid:e7c0e2e2-bf48-4446-abc7-3d9ddfe47475
DOI
https://doi.org/10.1038/s41928-019-0333-z
TNO identifier
871933
Publisher
Nature Research
ISSN
2520-1131
Source
Nature Electronics, 2 (12), 606-611
Document type
article