In this study, we investigated the influence of the light spectra of the normal LCD, blue-shifted LCD, and OLED smartphone displays on visual fatigue based on subjective and objective measurements. The illuminance of the retinal photoreceptors was calculated for the three displays to quantify the components of the light spectra. The results showed that the accumulated visual fatigue decreased for the display with lower retinal illuminances of the S-, M-, and L-cones, and ipRGCs when the luminance and CCT were the same. In addition, the display with larger retinal illuminances of the M- and L-cones induced more visual fatigue related to dry eye. Hence, a slight shift of the blue light peak toward a longer wavelength is recommended for reducing visual fatigue. Furthermore, an evaluation model of the overall visual fatigue level is proposed.

在这项研究中，我们基于主观和客观测量调查了普通 LCD、蓝移 LCD 和 OLED 智能手机显示屏的光谱对视觉疲劳的影响。计算了三个显示器的视网膜光感受器的照度，以量化光谱的分量。结果表明，当亮度和 CCT 相同时，S-、M-和 L-视锥以及 ipRGC 的视网膜照度较低的显示器的累积视觉疲劳减少。此外，具有较大视网膜照度的 M 和 L 视锥细胞会引起更多与干眼症相关的视觉疲劳。因此，建议将蓝光峰值向更长的波长稍微移动以减少视觉疲劳。此外，提出了整体视觉疲劳程度的评价模型。