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P‐217L: Late‐News Poster : Glass Impact on Capacitive Touch‐Sensing Algorithms: Thinner and Shaped Cover Glass
Author(s) -
Baharav Zachi,
Kakarala Ramakrishna
Publication year - 2011
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.3621263
Subject(s) - cover (algebra) , capacitive sensing , tracking (education) , computer science , function (biology) , algorithm , materials science , mechanical engineering , engineering , psychology , pedagogy , evolutionary biology , biology , operating system
Glass plays an important role in many capacitive touch‐sensing applications. In this work we analyze the effect that thinner cover glass has on the performance of touch‐sensing algorithms. To this aim, we introduce an analytic method to approximate the response on the sensors due to a finger, followed by numerical simulation of various algorithms. Results for tracking errors are plotted as a function of glass thickness. We also briefly discuss the effects of using shaped cover glass.