Fingernail Displays: Handy Displays at your Fingertips

Humans are mostly using their fingers to interact with their environment. We introduce our vision of Fingernail Displays: tiny displays that are worn on the fingernails. We describe and explore the following application scenarios of fingernail-worn displays: (1) FingerPhone, a standalone device for fast, lightweight interaction that is always at hand; (2) on-finger output on touch displays, which solves occlusion problems and provides in-place information; (3) fingernail displays as in-situ information display to provide additional information and controls on physical objects; (4) interactive, animated nail art that can adjust itself to the context. Finally we sketch the path towards making the vision of fingernail displays become reality.