Journal of Convergence for Information Technology (융합정보논문지)

Convergence Society for SMB (중소기업융합학회)
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Durability and Driving Characteristics of Flexible Electronic Paper Display Using CNT Electrode

CNT 전극을 적용한 플렉시블 전자종이 디스플레이의 내구성 및 구동특성

  • Kim, Young-Cho (Dept. of Electric Engineering, Chungwoon University)
  • 김영조 (청운대학교 전자공학과)
  • Received : 2021.11.22
  • Accepted : 2022.02.20
  • Published : 2022.02.28
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Abstract

Two types of charged particle-type electronic paper display panels with electrodes using ITO and CNT are fabricated to compare durability and electro-optical characteristics. The sheet resistance of the ITO electrode is 10 (ohm/sq.), and the sheet resistance of the CNT electrode is 300, 600, 1000 (ohm/sq.), and durability is carried out by impact and flexibility measurements. Variation in case of the ITO electrode begins at shocks of 40 times and curvature radius of 10 mm, and no change is observed in the CNT electrode. The driving voltage, electric field required for particle movement, reflectivity, and response time measurements show similar results for all ITO and CNT electrodes.

ITO와 CNT를 적용한 전극을 코팅하여 제작한 대전입자형 전자종이 디스플레이 패널을 제작하여 내구성 및 전기광학적 특성을 비교한다. ITO 전극의 면저항은 10(ohm/sq.)이고 CNT 전극의 면저항은 300, 600, 1000(ohm/sq.)이며 내구성 측정을 위하여 물리적 충격 및 유연성 측정을 진행한다. ITO 전극의 경우 40회의 충격과 10mm의 곡률 반지름에서부터 변화가 시작되나 CNT 전극에서는 변화가 측정되지 않는다. 입자 이동, 반사율 및 응답 시간 측정에 필요한 구동 전압, 전계 등 전기광학 측정결과 CNT 전극은 ITO 전극과 유사한 결과를 얻었다.

Keywords

Acknowledgement

This research was supported by Academic Research Foundation of Chungwoon University in 2021

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