Citation

Chang J, Moon SK, Jung K, Kim W, Parkinson M, Freivalds A, Simpson TW, Baik SP. Ergonomics 2018; 61(5): 670-681.

Affiliation

LG Electronics , Englewood Cliffs , NJ 07632 , USA.

Copyright

(Copyright © 2018, Informa - Taylor and Francis Group)

DOI

10.1080/00140139.2017.1401670

PMID

29103342

Abstract

This study presents usabilityconsiderations and solutions for the design of glasses-type wearable computer displays and examines their effectiveness in a case study.Design countermeasures were investigated by a four-step design process: (1) preliminary design analysis;(2) design idea generation; (3) final design selection; and (4) virtual fitting trial.Three design interventions were devised from the design process: (1) weight balance to reduce pressure concentrated on the nose, (2) compliant temples to accommodate diverse head sizes, and (3) a hanger mechanism to help spectacle users hang theirwearable display on their eye glasses.To investigate their effectiveness, in the case study, the novel 3D glasses adopting the three interventionswere compared with two existing 3D glasses in terms of neck muscle fatigue and subjective discomfort rating. While neck muscle fatigue was not significantly different among the three glasses (p = 0.467), the novel glasses had significantly smaller discomfort ratings (p = 0.009). Relevance to Industry: A four-step design process identified usabilityconsiderations and solutions for the design of glasses-type wearable computer displays. A novel 3D glasses was proposedthrough the process and its effectiveness was validated. The results identify designconsiderations and opportunities relevant to the emerging wearable display industry.

Language: en

Keywords

compliant temple; ergonomic design process; hanger mechanism; wearable computer display; weight balance