Han Byul Choi (6163232)Jinwon Oh (5519093)Youngsoo Kim (119651)Mikhail Pyatykh (8623281)Jun Chang Yang (8623284)Seunghwa Ryu (1408063)Steve Park (1707712)
The\ndemand for display technology is expected to increase with the continuous\nspread of portable electronics and with the expected emergence of\nflexible, wearable, and transparent display devices. A touch screen\nis a critical component in display technology that enables user interface\noperations, and the future generation of touch screens, the so-called\n3D touch screens, is expected to be able to detect multiple levels\nof pressure. To enable 3D touch screens, transparent pressure sensors\nwith high linearity over a working range that encompasses the pressure\nrange of human touch (10–100 kPa) are required. In this work,\na transparent and linear capacitive pressure sensor is reported with\na transmittance over 85% and high linearity (<i>R</i><sup>2</sup> = 0.995) over 5–100 kPa of pressure. To render the\nsensor transparent, a microstructured “hard” elastomer\nlayer was filled in with a refractive index matching a “soft”\nelastomer layer, through which light scattering was minimized. High\nlinearity was attained from the sensor’s unique architecture\nthat increases the effective area of the capacitor with applied pressure.\nThese attributes render our sensor highly suitable for future 3D touch\nscreen applications.
Han Byul ChoiJinwon OhYoungsoo KimMikhail PyatykhJun Chang YangSeunghwa RyuSteve Park
Yaoguang ShiXiaozhou LüWenran WangXiangyu MengJihao ZhaoPengfei WangGuanghui Bai
Yusaku TagawaSunghoon LeeTakao SomeyaTomoyuki Yokota
Menghui XiangLi YuJin Fang ChaiY. B. LeiYunlong ZhaoGuirong WuJunyang LiChenyang XueLibo Gao
Yuhang Wang (332111)Ranxu Jing (19516024)Junxiang Jiang (19516027)Hongbo Wang (587749)Linmao Qian (1567639)Bingjun Yu (2098909)Zhi-Jun Zhao (287192)