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학술지 A Transparent Visuo-haptic Input Device with Optical Waveguide based Thin Film Display, Sensor and Surface Actuator
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저자
박봉제, 박선택, 윤성률, 남세광, 경기욱
발행일
201509
출처
Sensors and Actuators A : Physical, v.233, pp.47-53
ISSN
0924-4247
출판사
Elsevier
DOI
https://dx.doi.org/10.1016/j.sna.2015.06.028
협약과제
15ME1300, 형상 재구성이 가능한 능동 마이크로 렌즈 어레이, 경기욱
초록
Abstract We demonstrate a transparent visuo-haptic input device. The device consists of optical waveguide based thin film display, sensor, and surface actuator. Highly transparent flexible display and sensor with high are fabricated by using Bisphenol A ethoxylate diacrylate (na = 1.5647 @ 632 nm) and Tetra diacrylate (na = 1.5031 @ 632 nm) for core and clad, respectively. The display and sensor are thin (thickness: < 70 μm), highly transparent (optical transmittance: as high as 90%) and designed as a form of 3 × 9 matrix. Surface actuator is fabricated as a combination of ITO electrode coated two rectangular glass plates, which are sandwiched with a constant air gap. The surface actuator produces electrically induced dynamic deformation responses of displacement as high as 157 μm and output force as large as 60 mN under a sinusoidal input voltage signal of 2 kV at 140 Hz. The visuo-haptic display integrating the three functional components is capable of realizing sufficient and human perceivable vibro-tactile response on a touch interface for QWERTY keypad.
KSP 제안 키워드
Air-gap, Bisphenol a, Dynamic deformation, Functional components, ITO electrode, Input Device, Optical transmittance, Optical waveguides, Output force, Transparent Flexible Display, Vibro-tactile