Design and implement the readout circuit of an in-cell high-resolution capacitive touch panel

Tsung Yen Ku, Chang-Po Chao*, Chin Hai Huang, En Chih Liu, Ming Hua Yeh, Han Chang Chen, Tong Wen Wang

*Corresponding author for this work

研究成果: Conference contribution同行評審

摘要

This paper proposes a high resolution capacitive touch panel readout circuit to sense the Variation by self-capacitance method. This AM display of in-cell structure includes an active architecture for improved resolution, that controlling the TFT (Thin-film transistor) to make the accuracy better. In addition, the panel has 60 sensing point per 0.88 inches and the proposed readout circuit used switched capacitor charge amplifier(SCCA) to sensing the charge change and enhances the SNR (Signal-to-noise) by eliminating the baseline. The experimental results show that the proposed readout circuit SNR achieves 38dB and the frame rate is 200Hz.

原文English
主出版物標題ASME 2017 Conference on Information Storage and Processing Systems, ISPS 2017
發行者American Society of Mechanical Engineers
ISBN(電子)9780791858103
DOIs
出版狀態Published - 1 一月 2017
事件ASME 2017 Conference on Information Storage and Processing Systems, ISPS 2017 - San Francisco, United States
持續時間: 29 八月 201730 八月 2017

出版系列

名字ASME 2017 Conference on Information Storage and Processing Systems, ISPS 2017

Conference

ConferenceASME 2017 Conference on Information Storage and Processing Systems, ISPS 2017
國家United States
城市San Francisco
期間29/08/1730/08/17

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