32.2: Touch-Panel Controller Implemented with LTPS TFTs

32.2: Touch-Panel Controller Implemented with LTPS TFTs

A touch panel controller has been implemented with LTPS TFTs on a glass substrate. It induces voltage gradient across either plate of a 4‐wire resistive touch panel and senses the intermediate potential at the touch position via the other plate. Then it converts the acquired analog voltage into digi...

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Veröffentlicht in:SID International Symposium Digest of technical papers 2009-06, Vol.40 (1), p.443-446
Hauptverfasser: Pi, JaeEun, Pyo, ChangShin, Kim, ByeongHoon, Park, KeeChan, Kim, Young-il, Eom, JiHye, Choi, JaeBeom, Park, Seong-il, Lee, Baek-woon, Hwang, Youngin, Kim, Chi-Woo
Format: Artikel
Sprache:eng
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Zusammenfassung:A touch panel controller has been implemented with LTPS TFTs on a glass substrate. It induces voltage gradient across either plate of a 4‐wire resistive touch panel and senses the intermediate potential at the touch position via the other plate. Then it converts the acquired analog voltage into digital signal and outputs 3‐bit digital data for the horizontal and vertical positions respectively.
ISSN:0097-966X
2168-0159
DOI:10.1889/1.3256811