TNT: Touch 'n' tangibles on LC-displays

Abstract

In this paper, we present TNT (Touch 'n' Tangibles) - a new combination of several existing hardware technologies, which are integrated into an LC-display. TNT enables users to interact using finger touch and tangible user interfaces at the same time on an active flat panel screen, while maintaining precise identification of all interactive objects and fingers. TNT can accurately distinguish between touch and Tangible User Interfaces input by assigning different time slots to each interactive object using the same sensing technology for both methods. TNT's tracking is not affected by objects on the screen other than fingers and active Tangibles User Interfaces, which makes it ideal for use in brainstorming applications. © 2009 Springer.