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Gilbert Beyer, Andreas Butz
Communicating the Interactivity of differently shaped Displays
Workshop 'Displays Take New Shape: An Agenda for Interactive Surfaces' in conjunction with the 31st ACM SIGCHI Conference on Human Factors in Computing Systems (CHI 2013), April 28, 2013, Paris, France. (bib)

Several works discussed how displays in public can grab the attention of passers-by and communicate their interactivity, yet the proposed interaction techniques mostly assumed that the display is flat and rectangular. Results on the effectiveness of such concepts may not hold true for novel non-flat shapes of displays. In this paper, we discuss the challenges and some techniques to initiate user interaction with nonflat interactive displays in public space. As a starting point, we present our findings on the touch-free interaction techniques we used on a digital advertising column, an example of a cylindrical shaped display, and describe how different visual feedback to the unaware movements of passers-by succeeded in communicating interactivity. At the workshop we would like to discuss how this implicit initial interaction phase can be designed for further novel shapes of displays and interaction techniques.