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Updated: May 29, 2026
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A Method to Quantify Visual Information Processing in Children Using Eye Tracking
Published on: July 9, 2016
Electronic paper display preferred viewing distance and character size for different age groups
1Department of Industrial Engineering and Management, Chaoyang University of Technology, No. 168, Jifong East Road, WufongDistrict, Taichung , 41349, Taiwan, ROC. hcwul@cyut.edu.tw
Ergonomics
|September 28, 2011
Summary
Older adults need larger text on electronic paper displays for comfortable viewing and accurate reading. This study determined optimal character sizes and viewing distances for different age groups to improve e-paper display design.
Area of Science:
- Human-Computer Interaction
- Ergonomics
- Display Technology
Background:
- Electronic paper displays (E-paper) are increasingly used, but optimal viewing parameters for diverse age groups are not well-established.
- Age significantly influences visual perception and reading performance, necessitating age-specific design considerations for digital displays.
Purpose of the Study:
- To investigate the preferred viewing distance and character size for E-paper displays across young, middle-aged, and older adults.
- To evaluate the impact of preferred versus minimum acceptable character sizes on Chinese text proofreading speed and accuracy.
Main Methods:
- Participants from three age groups (young, middle-aged, older) performed Chinese proofreading tasks.
- Proofreading speed and accuracy were measured using preferred and minimum acceptable character sizes on an E-paper display.
- Preferred viewing distance and character size were recorded for each participant.
Main Results:
- Mean preferred viewing distances were 503mm (young), 455mm (middle-aged), and 444mm (older).
- Mean preferred character sizes (min arc) were 42.0 (young), 50.0 (middle-aged), and 55.2 (older).
- Older adults exhibited slower proofreading (1.25 words/sec) compared to younger groups (1.76 words/sec). Accuracy was higher with preferred character sizes (73.3%) than minimum acceptable (65.4%).
Conclusions:
- Age is a critical factor influencing preferred viewing distance and character size for E-paper displays.
- Tailoring character size and viewing distance based on age group enhances reading performance and user experience.
- Findings inform the design of E-paper displays and Video Display Terminal (VDT) guidelines for improved accessibility.
