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ABSTRACT
Projector phones, handheld game consoles and many other
mobile devices increasingly include more than one display,
and therefore present a new breed of mobile Multi-Display
Environments (MDEs) to users. Existing studies illustrate
the effects of visual separation between displays in MDEs
and suggest interaction techniques that mitigate these
effects. Currently, mobile devices with heterogeneous
displays such as projector phones are often designed
without reference to visual separation issues; therefore it is
critical to establish whether concerns and opportunities
raised in the existing MDE literature apply to the emerging
category of Mobile MDEs (MMDEs). This paper
investigates the effects of visual separation in the context of
MMDEs and contrasts these with fixed MDE results, and
explores design factors for Mobile MDEs. Our study uses a
novel eye-tracking methodology for measuring switches in
visual context between displays and identifies that MMDEs
offer increased design flexibility over traditional MDEs in
terms of visual separation. We discuss these results and
identify several design implications.

UK 2011 Cauchard Multi-Display Environment Mobile eye Tracker HCI Interface projector Tobii Glasses

in list: HCI & Usability