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Abstract
Background: Tablet computers are increasingly widespread in this digital era. During tablet computer use, two important factors are display quality and ambient illumination. The purpose of this experiment was to understand the effects of the display quality of tablet computers (a Sony, a Samsung, and an iPad) and ambient illumination levels (200 lx, 500 lx) on visual fatigue, comfort perception, and task performance.
Methods: Thirty-five university students (17 males and 18 females) were recruited for this experiment. They performed six 40-min trials of playing computer games in all experimental conditions. Visual fatigue, comfort perception, and task performance were collected at the end of each trial.
Results and Discussion: There were no interactions between display model and ambient illumination. Display model had a significant effect on visual fatigue and visual performance, and the best display quality caused less visual fatigue during long periods of viewing. We found no significant effect between 200 lx and 500 lx of ambient illumination on visual fatigue or visual performance; therefore, further research should be conducted to determine what levels of ambient illumination, both high and low, can affect visual fatigue and task performance.
Additional information
Notes on contributors
Jen-Gwo Chen
Jen-Gwo Chen is the Vice President of Foxconn Information Ergonomics Center at Taipei in Taiwan. He graduated with a PhD degree from the Department of Industrial Engineering of the University of Oklahoma. His research focuses on industrial engineering and industrial management.
Shu-Kai Wu
Shu-Kai Wu is a fellow of Foxconn Information Ergonomics Center at Taipei in Taiwan. She graduated with a PhD degree in the Department of Industrial Engineering of National Taiwan University of Science and Technology. Her research focuses on usability testing of computer and smartphone devices.
Hsiao-Ping Chiu
Hsiao-Ping Chiu is the Vice General Manager of Foxconn Information Ergonomics Center at Taipei in Taiwan. She graduated with a PhD degree in the Department of Industrial Engineering of National Chiao Tung University. Her research focuses on usability testing of computer and smartphone devices.
Chia-Nai Tu
Chia-Nai Tu is a fellow of Foxconn Information Ergonomics Center at Taipei in Taiwan. He graduated with a master’s degree from the Department of Industrial Engineering of National Chiao Tung University. His research focuses on usability testing of computer and smartphone devices.
Chien-Hsiou Liu
Chien-Hsiou Liu is an associate professor in the Department of Occupational Therapy of Fu Jen Catholic University at Taipei in Taiwan. She graduated with a PhD degree from the Department of Industrial Engineering of National Chiao Tung University. Her research focuses on ergonomic and biomechanical-related research.