不同 LED 背光显示器对人眼视觉和非视觉效应的研究

摘要

研究了以LED为背光源的不同显示器对不同年龄人眼视网膜照度、节律效应和蓝光危害等视觉和非视觉效应。采用常见的4款LED显示器为研究对象，测量了显示白色和蓝色时的归一化光谱分布，参考不同年龄人眼晶状体的透射谱曲线，计算了视网膜照度因子、蓝光危害能效因子和节律因子，分析不同显示器的结果之间的关系。研究表明：不同显示器显示白色和蓝色时，其视网膜照度因子、蓝光危害能效因子和节律因子均随年龄的增加而显著减小。对于同一年龄的年轻人眼，不同显示器的照度因子基本相同，节律因子和蓝光危害因子的差异较大。%The effects of the retinal illuminance, circadian rhythm and blue light hazard of the different LED backlight displays on the eyes of different ages are studied.The normalized white and blue spectral distributions of four common displays are measured, the retinal illuminance factor, blue light hazard factor and circadian factor of different displays are calculated, and then the relationships among these factors of different displays are obtained.It shows that the above three factors decrease as the age increases for all the displays, regardless of blue or white background.The illuminance factors show similar values with various ages for the same display.For the same young eye, the illuminance factor of different display changes little. However, the blue light hazard factor and the circadian factor are different.