https://orcid.org/0000-0002-0697-2164
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ABSTRACT
This study aims to investigate the effects of edge displays on smartphone usage in one-hand-only use scenarios and identify issues related to touch errors. Experiments were conducted by recreating typical usage environments to mimic the use of phones in cafeterias, homes, and mobile settings. A framework to analyze smartphone usage and human errors was developed. We collected data on the usage errors and use cases through a head-mounted camera donned by participants and a screen-recording application. The results showed that the number of incidents involving unintentional touching of screen edges for edge-screen smartphones is five times higher than that for typical flat smartphones. Moreover, the lying down position is more susceptible to errors for both types of smartphones. These results indicate the necessity of design strategies to reduce unrelated touching of screen edges and the importance of considering various body postures to elucidate a better understanding of smartphone usage.
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Meen Jong Kim
Meen Jong Kim is a Ph.D. candidate in the Department of Industrial Engineering at Yonsei University, Korea. His research interests include human factors and user behaviors when using smart devices.
Hwan Hwangbo
Hwan Hwangbo received his Ph.D. in Information and Industrial Engineering in 2017 from Yonsei University. His research interests include user experiences, user interface designs, and human factors.
Yong Gu Ji
Yong Gu Ji received his Bachelor’s and Master’s degrees from Seoul National University and his Ph.D. in ergonomics and HCI in 2001, from Purdue University. He has been engaged in research and education as a professor since 2002 and is currently at Yonsei University. Since 2002, he has conducted research on various aspects of ergonomics and HCI. His research interests include driver behavior in autonomous vehicles and UX on smart devices.