Low-Cost Fabrication Method for Thin, Flexible, and Transparent Touch Screen Sensors
- Authors
- Kim, Seong-jun; Thanh Huy Phung; Kim, Seora; Rahman, Md Khalilur; Kwon, Kye-Si
- Issue Date
- Sep-2020
- Publisher
- JOHN WILEY & SONS INC
- Keywords
- capacitive touch panel; laser sintering; near-field electrospinning; PET substrates; transparent flexible electrodes
- Citation
- Advanced Materials Technologies, v.5, no.9
- Journal Title
- Advanced Materials Technologies
- Volume
- 5
- Number
- 9
- URI
- https://scholarworks.bwise.kr/sch/handle/2021.sw.sch/2531
- DOI
- 10.1002/admt.202000441
- ISSN
- 2365-709X
- Abstract
- This study presents a new fabrication method for touch screen sensors using inexpensive, flexible, and transparent polyethylene terephthalate (PET) films. In the proposed method, a transparent capacitive touch sensor array is implemented with two independent axes of invisible electrodes consisting of indium tin oxide (ITO) patterns and bridge electrodes. A low-cost implementation of the bridge electrodes is achieved by using near-field electrospinning (NFES) method for the conductive lines with linewidth of 3-5 mu m. Then, the printed bridge electrode is sintered using green laser without damaging the PET film. It is demonstrated that two transparent electrodes deposited on a single sheet of PET film can detect the touch location by scanning the driving signal while simultaneously measuring the capacitances from the sensing lines connected via bridge electrodes.
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Collections - College of Engineering > Department of Mechanical Engineering > 1. Journal Articles
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