A Study of Touch Accuracy using Smartphone Cases with a Dimple or a Wedge shaped Attachment

Abstract

In this research, we created smartphone cases attaching a dimple or a wedge shaped object in order to improve eyes-free and single-handed touch accuracy. We considered that users could use these dimple or wedge shaped object as a tactile marker for a screen of smartphone. In the user study, we evaluated touch accuracies using a smartphone with each case.