Effects of Display Media Type,Ambient Lighting,Viewing Distance,Viewing Offset,Object Type,and Object Size on Large-Screen Display Legibility

Abstract

With the advent of increasing advances in visual display technology, MIL-STD-1472F, Design Criteria Standard for Human Engineering, was designated for an upgrade to capture how new technologies may have impacted its display standards. Large-Screen Displays (LSDs) were subject to review and, henceforth, the following study emerged. Six variables were chosen for inclusion in the present experiment: display type (monitor v. projector), ambient lighting (light v. dark), viewing distance (8 ft, 16 ft, 32 ft), viewing offset (0°, 25°), object type (letter, number, symbol), and object size (in terms of visual angle, i.e., 6 min, 8 min, 10 min). The variables chosen were expected to impact operator performance in terms of response time and accuracy based on stimulus legibility. The results did not support any reductions in current minimum text size, but new recommendations for preferred text size, symbol size, viewing distance, and viewing offset were established.

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References

Aegis Display System Mk 7 Mod 1 Baseline 7 Phase 1C/1R.

Department of Defense. (1999). Design Criteria Standard for Human Engineering (MIL-STD-1472F).

Nesteruk

H.E.J.

(2009). Assessing the Human Factors of a Human Engineering Standard, in Proceedings of the Human Factors and Ergonomics Society 53^rd Annual Meeting (pp. 1820–1824). Santa Monica, CA: Human Factors and Ergonomics Society.