Open AccessAlternating panel charge sharing technique for touch screen panel self‐capacitance sensing IC
Author(s) -
Seong S.,
Lee S.,
Bae S.,
Lee M.
Publication year - 2020
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2020.1425
Subject(s) - capacitance , charge sharing , materials science , noise (video) , signal to noise ratio (imaging) , charge (physics) , optoelectronics , electrical engineering , signal (programming language) , electronic engineering , acoustics , computer science , telecommunications , engineering , physics , electrode , voltage , quantum mechanics , artificial intelligence , image (mathematics) , programming language
This Letter presents a self‐capacitance sensing (SCS) technique for touch screen panel with the alternating panel charge sharing (APCS) that effectively suppresses low‐frequency noise and achieves a better signal‐to‐noise ratio (SNR). With the proposed APCS‐based SCS, SNR is improved in measurement by 7.65 dB compared to the conventional panel charge sharing‐based SCS.