Design of AM self-capacitive transparent touch panel based on a-IGZO thin-film transistors

• Main Authors: Wu, Kejun, Zhang, Jun, Li, Yuanbo, Wang, Xiangzhan, Liu, Yang, Yu, Qi, Chen, Tupei
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2021
• Subjects: Engineering::Electrical and electronic engineering; Touch Panel; Thin Film Transistor
• Online Access: https://hdl.handle.net/10356/145676
• Institution: Nanyang Technological University

In this work, we propose a novel active-matrix self-capacitance touch panel circuit. Each touch pixel contains only one thin film transistor. The principle of the touch event detection is to detect the voltage change, which is caused by the change of electrode capacitance. The voltage sensing by cap...