Investigation of the Optimum Display Luminance of an LCD Screen under Different Ambient Illuminances in the Evening

Ambient illuminance and screen luminance have a significant influence on the visual fatigue and visual performance associated with the use of computers. The current study was conducted to investigate optimal screen luminance under different ambient illuminances and fit a curve of the optimum luminan...

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Bibliographic Details
Published in:Applied sciences 2021-05, Vol.11 (9), p.4108
Main Authors: Zhou, Ying, Shi, Haoyue, Chen, Qing-Wei, Ru, Taotao, Zhou, Guofu
Format: Article
Language:English
Subjects:
ambient illuminance
Cellular telephones
computer vision syndrome
Computers
evening
Fatigue
Illuminance
Investigations
Light
Luminance
Materials fatigue
screen luminance
visual comfort
visual fatigue
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Summary:Ambient illuminance and screen luminance have a significant influence on the visual fatigue and visual performance associated with the use of computers. The current study was conducted to investigate optimal screen luminance under different ambient illuminances and fit a curve of the optimum luminance of LCD screens under evening illumination. Thirty-three participants were assigned to rate screen brightness, visual comfort with screen luminance, satisfaction with ambient illuminance and visual fatigue under six screen luminance levels (3.87, 21.47, 42.74, 64.12, 84.77 and 106.7 cd/m2) combined with five ambient illuminance levels (0, 25, 50, 75 and 100 lx) in the evening. The results showed that optimum LCD screen luminance increased with increasing ambient illuminance. Moreover, ambient illuminance and screen luminance levels should be in the range of 13.08–62.16 lx and 20.63–75.15 cd/m2, respectively, to obtain the optimal subjective feelings of visual fatigue and visual comfort during the evening.
ISSN:2076-3417
2076-3417
DOI:10.3390/app11094108