Evaluation and application strategy of low blue light mode of desktop display based on brightness characteristics

IF 3.7 2区 工程技术 Q1 COMPUTER SCIENCE, HARDWARE & ARCHITECTURE Displays Pub Date : 2024-08-10 DOI:10.1016/j.displa.2024.102809
Wenqian Xu , Peiyu Wu , Qi Yao , Rongjun Zhang , Bang Qin , Dong Wang , Shenfei Chen , Yedong Shen
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Abstract

Long-term use of desktop displays may increase the burden of the visual system and users can use low blue light mode for eye protection in terms of circadian effect. In this work, we investigated its influence from two aspects of brightness-visual effect, namely efficacy and circadian effect, and color quality, namely color difference Δu’v’ (chromaticity coordinate offset of two colors), and Duv (deviation from blackbody locus). The decrease of brightness is accompanied by the increase of efficacy while diminishing circadian effect. The blue, cyan, and magenta have the largest Δu’v’, and the lower the saturation, the greater the Δu’v’. The lower the correlated color temperature (CCT), the greater the Duv and the farther it deviates from the Planckian locus. We summarize three low blue light mode adjustment strategies based on red, green, and blue three-channel ratio of spectrum, and propose an optimized mode using genetic algorithm, which has two optional CCT ranges of 3500–5000 K and 2700–3000 K. Furthermore, we establish the relationship between brightness and gamut coverage to refine the screen brightness range for low blue light mode. This research provides valuable insights into low blue light mode application and their implications for human-centric healthy displays.

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基于亮度特性的台式显示器低蓝光模式评估与应用策略
长期使用台式显示器可能会增加视觉系统的负担,从昼夜节律效应的角度考虑,用户可以使用低蓝光模式来保护眼睛。在这项工作中,我们从亮度的两个方面--视觉效果(即功效和昼夜节律效应)和色彩质量(即色差Δu'v'(两种颜色的色度坐标偏移)和 Duv(偏离黑体位置))--研究了其影响。亮度的降低伴随着功效的提高,同时昼夜效应也会减弱。蓝色、青色和品红色的Δu'v'最大,饱和度越低,Δu'v'越大。相关色温(CCT)越低,Duv 越大,偏离普朗克位置越远。我们总结了基于红、绿、蓝三通道光谱比例的三种低蓝光模式调整策略,并利用遗传算法提出了一种优化模式,该模式有 3500-5000 K 和 2700-3000 K 两种可选色温范围。这项研究为低蓝光模式的应用及其对以人为本的健康显示器的影响提供了宝贵的见解。
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来源期刊
Displays
Displays 工程技术-工程:电子与电气
CiteScore
4.60
自引率
25.60%
发文量
138
审稿时长
92 days
期刊介绍: Displays is the international journal covering the research and development of display technology, its effective presentation and perception of information, and applications and systems including display-human interface. Technical papers on practical developments in Displays technology provide an effective channel to promote greater understanding and cross-fertilization across the diverse disciplines of the Displays community. Original research papers solving ergonomics issues at the display-human interface advance effective presentation of information. Tutorial papers covering fundamentals intended for display technologies and human factor engineers new to the field will also occasionally featured.
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