Influence of high ambient illuminance and display luminance on readability and subjective preference

Katrien De Moor; Börje Andrén; Yi Guo; Kjell Brunnström; Kun Wang; Anton Drott; David S. Hermann

doi:10.1117/12.2078380

17 March 2015 Influence of high ambient illuminance and display luminance on readability and subjective preference

Katrien De Moor, Börje Andrén, Yi Guo, Kjell Brunnström, Kun Wang, Anton Drott, David S. Hermann

Proceedings Volume 9394, Human Vision and Electronic Imaging XX; 93941E (2015) https://doi.org/10.1117/12.2078380
Event: SPIE/IS&T Electronic Imaging, 2015, San Francisco, California, United States

Abstract

Many devices, such as tablets, smartphones, notebooks, fixed and portable navigation systems are used on a (nearly) daily basis, both in in- and outdoor environments. It is often argued that contextual factors, such as the ambient illuminance in relation to characteristics of the display (e.g., surface treatment, screen reflectance, display luminance …) may have a strong influence on the use of such devices and corresponding user experiences. However, the current understanding of these influence factors is still rather limited. In this work, we therefore focus in particular on the impact of lighting and display luminance on readability, visual performance, subjective experience and preference. A controlled lab study (N=18) with a within-subjects design was performed to evaluate two car displays (one glossy and one matte display) in conditions that simulate bright outdoor lighting conditions. Four ambient luminance levels and three display luminance settings were combined into 7 experimental conditions. More concretely, we investigated for each display: (1) whether and how readability and visual performance varied with the different combinations of ambient luminance and display luminance and (2) whether and how they influenced the subjective experience (through self-reported valence, annoyance, visual fatigue) and preference. The results indicate a limited, yet negative influence of increased ambient luminance and reduced contrast on visual performance and readability for both displays. Similarly, we found that the self-reported valence decreases and annoyance and visual fatigue increase as the contrast ratio decreases and ambient luminance increases. Overall, the impact is clearer for the matte display than for the glossy display.

Citation Download Citation

Katrien De Moor, Börje Andrén, Yi Guo, Kjell Brunnström, Kun Wang, Anton Drott, and David S. Hermann "Influence of high ambient illuminance and display luminance on readability and subjective preference", Proc. SPIE 9394, Human Vision and Electronic Imaging XX, 93941E (17 March 2015); https://doi.org/10.1117/12.2078380

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