Abstract
This paper reports on downsampling-based techniques to achieve low power consumption and fast readout for capacitive touch screen panels. Here, touch interactivity is processed as an image, which is downsampled and reconstructed to estimate the touch position. After the reconstruction, a regional scan is performed around the reconstructed touch location to retrieve accurate touch information. Based on experimental and simulation results, we successfully decreased readout time and power consumption by 11.3 ms (68%) and 8.79 mW (68.7%), respectively, when only 25% sensors were selected. The presented technique yields higher responsivity and lower power consumption while maintaining detection accuracy.
© 2016 IEEE
PDF Article
More Like This
SiGe-enhanced Si capacitive modulator integration in a 300 mm silicon photonics platform for low power consumption
Maurin Douix, Diego Perez-Galacho, Ismael Charlet, Charles Baudot, Pablo Acosta-Alba, Sébastien Kerdilès, Catherine Euvrard, Philippe Grosse, Jonathan Planchot, Romuald Blanc, Rémi Beneyton, Olivier Gourhant, Sébastien Crémer, Aurélie Souhaité, Nathalie Vulliet, Laurent Vivien, Delphine Marris-Morini, and Frédéric Boeuf
Opt. Express 27(13) 17701-17707 (2019)
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription