P-178: Design of on-panel readout circuit for touch panel application

Tzu Ming Wang; Ming-Dou Ker; Yu Hsuan Li; Chung Hung Kuo; Chun Huai Li; Yao Jen Hsieh; Chun Ting Liu

doi:10.1889/1.3500398

P-178: Design of on-panel readout circuit for touch panel application

Tzu Ming Wang^*, Ming-Dou Ker, Yu Hsuan Li, Chung Hung Kuo, Chun Huai Li, Yao Jen Hsieh, Chun Ting Liu

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

An on-panel readout circuit for touch panel application has been designed and fabricated in a 3-μm low temperature poly-silicon (LTPS) technology. The minimum detectable voltage difference of the proposed circuit is 30 m V. The switch-capacitor technique is applied to amplify the voltage difference from capacitance change due to touch panel. The corrected double-sampling (CDS) technique is also employed to reduce the offset originated from process variation.

Original language	English
Pages (from-to)	1933-1936
Number of pages	4
Journal	Digest of Technical Papers - SID International Symposium
Volume	41
Issue number	1
DOIs	https://doi.org/10.1889/1.3500398
State	Published - 1 May 2010
Event	48th Annual SID Symposium, Seminar, and Exhibition 2010, Display Week 2010 - Seattle, WA, United States Duration: 23 May 2010 → 28 May 2010

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AU - Hsieh, Yao Jen

AU - Liu, Chun Ting

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AB - An on-panel readout circuit for touch panel application has been designed and fabricated in a 3-μm low temperature poly-silicon (LTPS) technology. The minimum detectable voltage difference of the proposed circuit is 30 m V. The switch-capacitor technique is applied to amplify the voltage difference from capacitance change due to touch panel. The corrected double-sampling (CDS) technique is also employed to reduce the offset originated from process variation.

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P-178: Design of on-panel readout circuit for touch panel application

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