Self-Actuated Displays for Vertical Surfaces

Most current devices are passive regarding their locations by being integrated in the environment or require to be carried when used in mobile scenarios. In this paper we present a novel type of self-actuated devices, which can be placed on vertical surfaces like whiteboards or walls. This enables vertical tangible interaction as well as the device interacting with the user through selfactuated movements. In this paper, we explore the application space for such devices by aggregating user-defined application ideas gathered in focus groups. Moreover, we implement and evaluate four interaction scenarios, discuss their usability and identify promising future use cases and improvements.