<i>SKIN+</i>

Wang, Yanan; Luo, Shijian; Gong, Hebo; Xu, Fei; Chen, Rujia; Liu, Shuai; Hansen, Preben

doi:10.1145/3170427.3188443

Cited by 9 publications

(2 citation statements)

References 16 publications

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“…For visual display, researchers developed ultrathin flexible LED display that can be attached onto the body, turning the skin into visual displays [50]. Wang et al [42] demonstrated a fabrication process to create dynamic skin visual appearances by soft fluidic actuation. For interaction, iSkin [43] proposed the idea of adding a very thin sensor overlay on various locations of the body such as the finger, forearm, or ear, turning them into input canvas.…”

Section: Epidermis User Interfacementioning

confidence: 99%

“…The bead of such size also helps maintaining a clear visibility, enabling applications like visual-haptic display that we will demonstrate later. Similar to other on-skin visual and haptic devices [19,18,25,42], the design of HapBead comprises of a two-layer soft plate structure ( Figure 2). The bottom layer, measured 0.4mm in thickness, embeds the micro channel, whose cross-section is 1mm × 1mm.…”

Section: Form Factormentioning

confidence: 99%

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HapBead: On-Skin Microfluidic Haptic Interface using Tunable Bead

Han

Bansal

Shi

et al. 2020

Proceedings of the 2020 CHI Conference on Human Factors in Computing Systems

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On-skin haptic interfaces using soft elastomers which are thin and flexible have significantly improved in recent years. Many are focused on vibrotactile feedback that requires complicated parameter tuning. Another approach is based on mechanical forces created via piezoelectric devices and other methods for non-vibratory haptic sensations like stretching, twisting. These are often bulky with electronic components and associated drivers are complicated with limited control of timing and precision. This paper proposes HapBead, a new on-skin haptic interface that is capable of rendering vibration like tactile feedback using microfluidics. HapBead leverages a microfluidic channel to precisely and agilely oscillate a small bead via liquid flow, which then generates various motion patterns in channel that creates highly tunable haptic sensations on skin. We developed a proof-of-concept design to implement thin, flexible and easily affordable HapBead platform, and verified its haptic rendering capabilities via attaching it to users' fingertips. A study was carried out and confirmed that participants could accurately tell six different haptic patterns rendered by HapBead. HapBead enables new wearable display applications with multiple integrated functionalities such as on-skin haptic doodles, mixed reality haptics and visual-haptic displays.

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Section: Epidermis User Interfacementioning

confidence: 99%

Section: Form Factormentioning

confidence: 99%

HapBead: On-Skin Microfluidic Haptic Interface using Tunable Bead

Han

Bansal

Shi

et al. 2020

Proceedings of the 2020 CHI Conference on Human Factors in Computing Systems

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Like A Second Skin

Nittala

Kruttwig

Lee

et al. 2019

Proceedings of the 2019 CHI Conference on Human Factors in Computing Systems

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The emerging class of epidermal devices opens up new opportunities for skin-based sensing, computing, and interaction. Future design of these devices requires an understanding of how skin-worn devices affect the natural tactile perception. In this study, we approach this research challenge by proposing a novel classification system for epidermal devices based on flexural rigidity and by testing advanced adhesive materials, including tattoo paper and thin films of poly (dimethylsiloxane) (PDMS). We report on the results of three psychophysical experiments that investigated the effect of epidermal devices of different rigidity on passive and active tactile perception. We analyzed human tactile sensitivity thresholds, two-point discrimination thresholds, and roughness discrimination abilities on three different body locations (fingertip, hand, forearm). Generally, a correlation was found between device rigidity and tactile sensitivity thresholds as well as roughness discrimination ability. Surprisingly, thin epidermal devices based on PDMS with a hundred times the rigidity of commonly used tattoo paper resulted in comparable levels of tactile acuity. The material offers the benefit of increased robustness against wear and the option to re-use the device. Based on our findings, we derive design recommendations for epidermal devices that combine tactile perception with device robustness. CCS CONCEPTS • Human-centered computing → User studies; Interaction devices; Empirical studies in HCI; Haptic devices.

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BiTipText: Bimanual Eyes-Free Text Entry on a Fingertip Keyboard

Chen

Zhao

et al. 2020

Proceedings of the 2020 CHI Conference on Human Factors in Computing Systems

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SKIN+

Cited by 9 publications

References 16 publications

HapBead: On-Skin Microfluidic Haptic Interface using Tunable Bead

HapBead: On-Skin Microfluidic Haptic Interface using Tunable Bead

Like A Second Skin

BiTipText: Bimanual Eyes-Free Text Entry on a Fingertip Keyboard

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