Review of capacitive touchscreen technologies: Overview, research trends, and machine learning approaches

H Nam, KH Seol, J Lee, H Cho, SW Jung - Sensors, 2021 - mdpi.com
Touchscreens have been studied and developed for a long time to provide user-friendly and
intuitive interfaces on displays. This paper describes the touchscreen technologies in four …

Capacitive touch systems with styli for touch sensors: A review

OK Kwon, JS An, SK Hong - IEEE Sensors journal, 2018 - ieeexplore.ieee.org
This paper presents the latest progress in development and applications of the capacitive
touch systems (CTSs) with styli. The CTSs, which include the touch sensor, analog front-end …

[HTML][HTML] The hybrid stylus: a multi-surface active stylus for interacting with and handwriting on paper, tabletop display or both

C Campos, J Sandak, M Kljun, KČ Pucihar - Sensors, 2022 - mdpi.com
The distinct properties and affordances of paper provide benefits that enabled paper to
maintain an important role in the digital age. This is so much so, that some pen–paper …

26.2 Virtual Rotating Gesture Recognizable Touch Readout IC for 1.26” Circular Touch Screen Panel

S Ko, J Lee, J Ham, B So, D Cho, H Kim… - … Solid-State Circuits …, 2023 - ieeexplore.ieee.org
Recently, there have been many advances in user interaction systems in mobile devices. In
addition to traditional capacitive touch systems, a stylus is becoming mainstream, which is a …

A sensing mode reconfigurable analog front-end IC for capacitive touch and a-IGZO TFT-based active-matrix capacitive fingerprint sensors

JS An, SH Han, JH Ye - IEEE Sensors Journal, 2019 - ieeexplore.ieee.org
In this paper, we propose a sensing mode reconfigurable analog front-end (AFE) IC for a
capacitive touch sensor (CTS) and amorphous indium-gallium-zinc-oxide (a-IGZO) thin-film …

A low-computing-complexity touch signal detection method and analog front-end circuits based on cross-correlation technology for large-size touch panel

X Guo, H Li, Y Chen, W Sun - Sensors, 2022 - mdpi.com
This paper proposes a low-computing-complexity touch signal detection method and analog
front-end (AFE) circuits based on cross-correlation technology for large mutual capacitance …

A readout IC for capacitive touch screen panels with 33.9 dB charge-overflow reduction using amplitude-modulated multi-frequency excitation

JS An, JH Ra, E Kang, MAP Pertijs… - IEEE Journal of Solid …, 2021 - ieeexplore.ieee.org
This article presents a readout integrated circuit (ROIC) for capacitive touch-screen panels
(TSPs) employing an amplitude-modulated multiple-frequency excitation (AM-MFE) …

28.1 A capacitive touch chipset with 33.9 dB charge-overflow reduction using amplitude-modulated multi-frequency excitation and wireless power and data transfer to …

JS An, JH Ra, E Kang, MAP Pertijs… - 2020 IEEE International …, 2020 - ieeexplore.ieee.org
As the demand for high frame rate and SNR increases in capacitive touch systems (CTSs),
several driving methods have been reported [1],[5]. However, when excitation circuits …

An always-on 0.53-to-13.4 mW power-scalable touchscreen controller for ultrathin touchscreen displays with current-mode filter and incremental hybrid ΔΣ ADC

YH Hwang, J Oh, J Park, Y Song… - … 2019-IEEE 45th …, 2019 - ieeexplore.ieee.org
This paper presents an always-on mutual-capacitive touchscreen controller (TSC) with a
reconfigurable power consumption of 0.53–13.4 mW, frame rate of 1–120 Hz, and an SNR of …

A high noise immunity, 28× 16-channel finger touch sensing IC using OFDM and frequency translation technique

SY Kim, B Samadpoor Rikan, YG Pu, SS Yoo, M Lee… - Sensors, 2018 - mdpi.com
In this paper, a high noise immunity, 28× 16-channel finger touch sensing IC for an
orthogonal frequency division multiplexing (OFDM) touch sensing scheme is presented. In …