A Projected Capacitive Touchscreen Operating under High Intensity Radiated Field

Paper #:
  • 2015-01-2533

Published:
  • 2015-09-15
DOI:
  • 10.4271/2015-01-2533
Citation:
Coni, P., Merino, F., and Renaud, F., "A Projected Capacitive Touchscreen Operating under High Intensity Radiated Field," SAE Technical Paper 2015-01-2533, 2015, doi:10.4271/2015-01-2533.
Pages:
8
Abstract:
Projected capacitive touchscreen (PCAP) became popular thanks to the introduction of the Apple iPhone, iPad and iPod.Electrical field generated for touch detection is known to be impaired by external fields, for example Cold Cathode Fluorescent Lamp, USB charger or AMLCD driving.Commercial product shall live with this issue, but the high intensity radiated field required for avionics application is several orders of magnitude higher than required for commercial product. In such an environment, standard touchscreens could have hazardous behavior.Thanks to the unique 20 years' experience on projected capacitive technology (Aircraft fighter), we designed a new projected capacitive touchscreen, based on a ruggedized touch controller and dedicated ASIC, able to operate in extreme electromagnetic environment.Qualification tests performed on our touchscreen show a great immunity to electromagnetic radiated electric fields up to 6000V/m (DO160 Section 20, cat L), suitable for the most severe avionics applications.
Access
Now
SAE MOBILUS Subscriber? You may already have access.
Buy
Select
Price
List
Download
$27.00
Mail
$27.00
Members save up to 40% off list price.
Share
HTML for Linking to Page
Page URL

Related Items

Training / Education
2017-06-14
Technical Paper / Journal Article
2003-06-16
Technical Paper / Journal Article
2003-07-07
Technical Paper / Journal Article
2006-11-21
Technical Paper / Journal Article
2012-10-22