Assessment and Optimization of the Circadian Performance of Smartphone-Based Virtual Reality Displays

IEEE Journal of the Electron Devices Society

Lili Zheng¹  Ziquan Guo¹  Yulin Gao¹  Zhong Chen¹  Tingzhu Wu¹  Yue Lin¹  Shijie Liang¹  Yijun Lu¹  Sung-Wen Huang Chen²  Jia-Rou Zhou²  Chun-Fu Lee²  Hao-Chung Kuo² 

[1] Department of Electronic Science, Fujian Engineering Research Center for Solid-State Lighting, Xiamen University, Xiamen, China;Institute of Electro-Optical Engineering, National Chiao Tung University, Hsinchu, Taiwan;

关键词: Displays;    virtual reality;    measurement;    optimization methods;    spectral analysis;   

DOI  :  10.1109/JEDS.2019.2899646

来源: DOAJ

【 摘 要 】

The non-visual effects of blue light in displays mean that excessive use of smartphones can disturb the human circadian rhythm. Thus, the impact of virtual reality (VR) headsets, which are worn closer to the human eye, may be even more serious. In this paper, based on non-visual parameters, such as the circadian action factor (CAF) and circadian illuminance, the circadian performance of smartphone-based VR displays is quantitatively evaluated by an evaluation system we designed. Moreover, we investigate the improvements in the circadian performance of VR headsets resulting from three practical methods for reducing the blue light content. Finally, a theoretical method of shifting the green-light wavelength of the screen close to 555 nm to optimize the CAF of VR headsets is proposed. Overall, the results of this paper are of significant value in quantifying the effects of VR displays on circadian rhythms and improving the safety of VR headsets with regard to human health.

【 授权许可】

Unknown