journal article·2020-05-10Open access

Understanding the Relationship between User’s Subjective Feeling and the Degree of Side Curvature in Smartphone

Yushin Lee, Wonjoon Kim, Joong Hee Lee, Yong Min Kim, Myung Hwan Yun

Applied Sciences· Volume 10· Issue 9

Abstract

To develop a flexible display, smartphones with edge screens with curved displays on both sides of the main screen have been used widely. Considering that small differences in the form of smartphones, such as length, width, and thickness, could affect user experience, the effects of the curvature of the edge screen should be identified. This study aimed to investigate the effects of the curvature of edge screens on subjective feelings of smartphone users and to find out the optimal curvature. In the experiment, four nonfunctional samples with different radii of curvature (4R/6R/8R/10R) were used as samples, and participants evaluated the five subjective feelings: grip/control comfort, front/side visibility, and stability of the samples with four usage patterns. Our results revealed that 8R is the optimal curvature for the edge screen based on subjective feelings in smartphone usage. Moreover, the effect of the curvature of the edge screen on grip comfort and control comfort varied according to the usage patterns. The results of this study can be applied to design of the curvature of edge screens in smartphones and it is expected that it will contribute to improvement of users’ satisfaction.
Source: crossref · Quality: baseline

Research context

OpenAlex topics: Ergonomics and Musculoskeletal Disorders · Interactive and Immersive Displays · Virtual Reality Applications and Impacts

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Institute of Engineering Research, Seoul National University, Seoul 08826, Korea

Department of Industrial & Management Engineering, Sungkyul University, Anyang 14097, Korea

Department of Industrial Engineering & Institute for Industrial System Innovation, Seoul National University, Seoul 08826, Korea

Funding

Ministry of Culture, Sports and Tourism (MCST) and Korea Culture & Tourism Institute (KCTI) Research & Development Program 2018 · Ministry of Science and ICT (MSIT)

References (26)

Show source-provided references
1. An ergonomics study of thumb movements on smartphone touch screen10.1080/00140139.2014.904007 ↗
2. The role of stress and motivation in problematic smartphone use among college students10.1016/j.chb.2015.07.005 ↗
3. Liu, C. (2015). Worldwide internet and mobile users: Emarketer’s updated estimates for 2015. eMarketer Tech. Rep.
4. Distributed attention and shared emotions in the innovation process: How Nokia lost the smartphone battle10.1177/0001839215606951 ↗
5. Holding a tablet computer with one hand: Effect of tablet design features on biomechanics and subjective usability among users with small hands10.1080/00140139.2013.820844 ↗
6. Grasp and index finger reach zone during one-handed smartphone rear interaction: Effects of task type, phone width and hand length10.1080/00140139.2016.1146346 ↗
7. Effects of grip span in one-handed thumb interaction with a smartphone10.1177/1541931213601243 ↗
8. Determination of Most Preferred Mobile Phone Size Based on Hand Anthropometry and Mobile Handiness
9. The Effects of Curvature of Edge Screen on Subjective Feelings in Smartphone Usage10.1177/1541931213601798 ↗
10. A survey of what customers want in a cell phone design10.1080/01449290500128214 ↗
11. Effects of Grip Curvature and Hand Anthropometry for the Unimanual Operation of Touchscreen Handheld Devices10.1002/hfm.20662 ↗
12. A study on the relationships among hand muscles and form factors of large-screen curved mobile devices10.1016/j.ergon.2016.07.003 ↗
13. Effects of display curvature and hand length on smartphone usability10.1177/1541931213601868 ↗
14. Karlson, A.K., Bederson, B.B., and Contreras-Vidal, J.L. (2008). Understanding One-Handed Use of Mobile Devices. Handbook of Research on User Interface Design and Evaluation for Mobile Technology, IGI Global.10.4018/978-1-59904-871-0.ch006 ↗
15. Le, H.V., Bader, P., Kosch, T., and Henze, N. (2016, January 23–27). Investigating Screen Shifting Techniques to Improve One-Handed Smartphone Usage. Proceedings of the 9th Nordic Conference on Human-Computer Interaction—NordiCHI ’16, Gothenburg Sweden.10.1145/2971485.2971562 ↗
16. Touch Behavior Analysis for Large Screen Smartphones10.1177/1541931215591311 ↗
17. Hand Anthropometry and SMS Satisfaction10.3923/jas.2008.816.822 ↗
18. The Relationship between Touchscreen Sizes of Smartphones and Hand Dimensions
19. A comparative study on subjective feeling of engine acceleration sound by automobile types10.1016/j.ergon.2019.102843 ↗
20. Moon, S., Park, S., Park, D., Kim, W., Yun, M.H., and Park, D. (2019). A Study on Affective Dimensions to Engine Acceleration Sound Quality Using Acoustic Parameters. Appl. Sci., 9.10.3390/app9030604 ↗
21. Sound quality evaluation for vehicle door opening sound using psychoacoustic parameters
22. A comparative study on designer and customer preference models of leather for vehicle10.1016/j.ergon.2017.07.009 ↗
23. Eardley, R., Roudaut, A., Gill, S., and Thompson, S. (2017, January 6–11). Understanding Grip Shifts: How Form Factors Impact Hand Movements on Mobile Phones. Proceedings of the 2017 CHI Conference on Human Factors in Computing Systems, Denver, CO, USA.10.1145/3025453.3025835 ↗
24. Smartphone form factors: Effects of width and bottom bezel on touch performance, workload, and physical demand10.1016/j.apergo.2017.10.002 ↗
25. Hand-size variations effect on mobile phone texting satisfaction
26. Effects of age, thumb length and screen size on thumb movement coverage on smartphone touchscreens10.1016/j.ergon.2015.11.004 ↗