Guided touch screen
Ashley Colley, Lasse Virtanen, Timo Ojala, Jonna Häkkilä · 2016
Touch screen based interfaces are pervading into areas such as car and industrial machinery control systems, where more tangible, physical interfaces have historically been used. This often results in a reduction in the possibility to operate the interface without the need to continuously look at the display. We present a novel approach aiming to increase the performance of eyes-free interaction with a touch screen User Interface (UI). A layer of transparent Perspex with cut-outs corresponding to the tracks of slider components in the visual UI is attached to the touch screen, guiding the interaction. A prototype system, where the user operated a remote visual task via a touch screen was evaluated in a user test with both unguided and guided conditions. The results illustrate the potential for adding a guidance layer to touch screens in applications where the output of the interaction is disconnected from the touch screen based input.