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Where to put the creases? Interactions between hand length, task, screen size, and folding method on the suitability of hand-held foldable display devices

Title
Where to put the creases? Interactions between hand length, task, screen size, and folding method on the suitability of hand-held foldable display devices
Author
경규형
Keywords
Foldable display; folding method; screen size; bi-fold screen; tri-fold screen
Issue Date
2019-04
Publisher
TAYLOR & FRANCIS LTD
Citation
ERGONOMICS, v. 62, No. 6, Page. 723-733
Abstract
Limited information is available regarding ergonomic foldable display device forms. This two-stage study involving young South Koreans (divided into three hand-length groups) was conducted to determine ergonomic forms for hand-held foldable display devices considering folding/unfolding comfort and preference. Stage I obtained the suitability of three screen sizes for five tasks. Stage II evaluated 14 different bi- and tri-folding methods considering screen size, folding direction, and folding time. The effects of hand length were all non-significant. Screen size preferences were task-dependent; small screens were preferred for making calls, and medium screens for web searching and gaming. Folding methods affected folding/unfolding comfort and preference; outward screen and Z-shape screen folding were the most preferred bi- and tri-fold concepts, respectively. Screen protection and access appeared to be competing factors in the user preference determination process. Foldable screen size and folding method should be determined by considering tasks, folding/unfolding comfort, and user preferences. Practitioner summary: A 13.5 cm screen was preferred for making calls, whereas a 17.5 cm screen was best for web searching and gaming. An outward bi-fold screen concept with a 17.5 cm screen and Z-shape tri-fold screen concept with a 22.9 cm screen were preferred. Overall, the Z-shape concept was most preferred.
URI
https://www.tandfonline.com/doi/full/10.1080/00140139.2019.1602287http://repository.hanyang.ac.kr/handle/20.500.11754/113109
ISSN
0014-0139; 1366-5847
DOI
10.1080/00140139.2019.1602287
Appears in Collections:
COLLEGE OF COMPUTING[E] > MEDIA, CULTURE, AND DESIGN TECHNOLOGY(ICT융합학부) > Articles
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