Alternating panel charge sharing technique for touch screen panel self‐capacitance sensing IC. Issue 21 (4th September 2020)

• Record Type: Journal Article
• Authors: Seong, S.; Lee, S.; Bae, S.; Lee, M.
• Is Part Of: Electronics letters. Volume 56:Issue 21(2020)
• Page Start: 1103
• Page End: 1105
• Publication Date: 2020-09-04
• Subjects: capacitive sensors -- touch sensitive screens -- interference suppression -- integrated circuit noise; touch screen panel -- self‐capacitance sensing IC -- self‐capacitance sensing technique -- low‐frequency noise suppression -- signal‐to‐noise ratio -- alternating panel charge sharing -- APCS; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2020.1425
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : 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.