不同显示器的蓝光危害及节律效应比较  

Comparison on Blue Light Hazard and Circadian Effect of Different Displays

作　　者：杨超普 方文卿 王昭 刘明宝 李春[1,2] 张美丽 周春生[1,2] 

机构地区：[1]商洛学院化学工程与现代材料学院,陕西商洛726000 [2]商洛学院陕西省尾矿资源综合利用重点实验室,陕西商洛726000 [3]南昌大学理学院,江西南昌330047 [4]西安工业大学材料与化工学院,陕西西安710021

出　　处：《激光与光电子学进展》2017年第12期378-384,共7页Laser & Optoelectronics Progress

基　　金：国家863计划(2011AA03A101);陕西省尾矿资源综合利用重点实验室开放基金(2014SKY-WK012);陕西省教育厅专项科研计划(16JK1241);商洛市科技计划(SK2015-29);商洛学院科研基金(13SKY-FWDF005)

摘　　要：为从蓝光危害与节律效应角度提供显示器的选购及使用参考,测量了不同色温(1200~6500K)下冷阴极荧光灯管(CCFL)背光液晶显示器(LCD)、发光二极管(LED)背光LCD、有机发光二极管(OLED)以及阴极射线管(CRT)这4种常用显示器的光谱分布;根据人眼响应函数的拟合结果,计算了不同色温下4种显示器的蓝光危害因子、节律因子、400~500nm蓝光占比以及446~477nm蓝光占比。结果表明:4种显示器的蓝光危害和节律效应均随色温升高而增大;当色温为1200~6500K时,OLED的蓝光危害因子最小;可利用400~500nm蓝光占比代替蓝光危害因子近似表征蓝光危害的强弱;当色温为6500K时,同时考虑蓝光危害与节律效应,4种显示器的优劣顺序依次为LED背光LCD、OLED、CCFL背光LCD、CRT。In order to provide references for purchase and usage of displays from the point of view of blue light hazard and circadian effect, the spectral distributions of four kinds of displays including cold cathode fluorescent lamp （CCFL） backlight liquid crystal display （LCD）, light emitting diode （LED） baeklight LCD, organic light- emitting diode （OLED）, and crystal ray tube （CRT） are measured at different color temperatures （1200-6500 K）. Blue light hazard factor, circadian factor, 400-500 nm blue light ratio and 446-477 nm blue light ratio of four kinds of displays at different color temperatures are calculated according to the fitting results of response functions of human eyes to visible light. Results show that blue light hazard factor and circadian factor increase with the increase of color temperature; blue light hazard factor of OLED is the smallest in four kinds of displays when the range of color temperature is from 1200 K to 6500 K; 400-500 nm blue light ratio instead of blue light hazard factor can be used to characterize the strength of blue light hazard; when the color temperature is 6500 K, considering blue light hazard and circadian effect at the same time, the quality order of four displays from good to bad is as follows： LED baeklight LCD, OLED, CCFL backlight LCD, and CRT.

关 键 词：生物光学 光生物效应 蓝光危害 节律效应 显示器 色温 

分 类 号：Q682[生物学—生物物理学] TN27[电子电信—物理电子学]