Design and Evaluation of a Layered Handheld 3D Display with Touch-sensitive Front and Back
Patrick Bader, Valentin Schwind, Niels Henze, Stefan Schneegass, Nora Broy, and Albrecht Schmidt
Proceedings of the 8th Nordic Conference on Human-Computer Interaction: Fun, Fast, Foundational · 2014
Abstract
Touch screens became truly pervasive through the success of smartphones and tablet PCs. Several approaches to further improve the interaction with touch screens have been proposed. In this paper we combine and extend two of these trends. We present a mobile 3D screen that consists of a stack of displays and is touch sensitive on both display sides. This design makes the screen independent from the user's view angle. Using a touch-sensitive back enables back-of-device interaction to avoid the fat-finger problem. Combining back-of-device interaction with a transparent display also avoids occlusion of the user's finger on the back through the device. Through a study we investigate how back and front touch improves interaction with 3D content and show how back-of-device interaction is improved if the user can actually see the finger on the back.