한국통신학회논문지 (The Journal of Korean Institute of Communications and Information Sciences)

  • 제40권5호
  • /
  • Pages.799-805
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  • 2015
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  • 1226-4717(pISSN)
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  • 2287-3880(eISSN)
한국통신학회 (The Korean Institute of Commucations and Information Sciences)
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잉크젯 프린팅 기술을 이용한 캐패스티브 터치 페이퍼

Inkjet-Printed Capacitive Touch Paper

  • Yun, Taehwa (School of Electrical and Electronics Engineering, College of Engineering, Chung-Ang University) ;
  • Lee, Sak (School of Electrical and Electronics Engineering, College of Engineering, Chung-Ang University) ;
  • Lim, Sungjoon (School of Electrical and Electronics Engineering, College of Engineering, Chung-Ang University)
  • 투고 : 2015.02.03
  • 심사 : 2015.04.27
  • 발행 : 2015.05.31
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초록

이 논문에서는 잉크젯 프린팅 기술을 이용한 캐패시티브 터치 패드가 제안되었다. 이 터치 패드는 피부의 전기적 임피던스를 인한 유효 캐패시턴스의 변화를 탐지함으로써 터치됨을 감지한다. 종이를 기판으로 이용함으로써 값 싸고, 유연하며, 쉽게 쓰고 버릴 수 있는 터치 패드가 구현되었다. 또한 잉크젯 프린팅 기술을 이용함으로써 쉽고, 빠르고, 친환경적으로 제작이 되었다. 터치 하지 않았을 때, 측정된 캐패시턴스는 163~182pF 범위의 값을 가지며, 터치 하였을 때 218~272pF의 값을 가진다. 각 상태의 캐패스턴스 차이는 손가락의 터치를 인식할 수 있을 만큼 충분히 큼을 확인하였다.

In this paper, an inkjet-printed capacitive touch pad is proposed. This touch pad detects contacts of human finger by detecting changes in effective capacitance due to electrical impedance of human finger. A flexible, low-cost and disposable paper is used as a substrate. Inkjet printing technology makes the fabrication fast, simple and environmentally friendly. Measured capacitances of the touched and untouched states are in the range of 163 to 182pF and 218 to 272pF, respectively. The differences in the measured capacitance of each state are sufficiently large to recognize that a finger has made contact with touch pad.

키워드

참고문헌

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