Ketsuro-Graffiti: An Interactive Display with Water Condensation

Abstract

We propose Ketsuro-Graffiti, a novel display that shows images with computer generated water condensation and enables users to interact them freely. Water condensation (Ketsuro in Japanese) is a natural canvas found on a car window or a glass on which we often scribble figures, illustrations, and messages. We implemented the prototype of Ketsuro-Graffiti using peltier devices, thermistors and Arduino, and evaluated the implemented prototype. The evaluation indicates the prototype can control the generation, evaporation and thickness of water condensation.