CRT显示器稳定性实验研究

用屏幕色度计对一台SONY-G520显示器的显色特性进行了测量,研究了其开机稳定性和短、中、长期内的色差及色度偏差。实验结果表明,开机后,显示器的亮度Y和色度x,y分别可在2h,30min和1h达到相对稳定状态,且在达到相对稳定后,在短、中、长期内的平均色差分别为0.0611,0.1469和1.2536CIELAB色差单位;在中期内,Y,x,y,L,a,b的平均偏差分别为0.0663,0.0008,0.0015,0.0695,0.4740和0.1766。通过对显示器稳定性的测量,为在对比度敏感测量和色貌模型、图像质量、图像感知模型评价等研究领域中用显示器进行实验研究奠定了基础。

Experimental research of stability for a CRT monitor

By the experimental research of stability for a SONY-G520 CRT monitor in three periods of short,medium and long-term,the experiment results show that stability for luminance,x and y need respectively 2 hour,30 minutes and 60 minutes;when stability after turn-on,mean color differences are 0.0611,0.1469,1.2536CIELAB in three periods,and mean deviations of Y,x,y,L,a,b are 0.0663,0.0008,0.0015,0.0695,0.4740,0.1766 in the medium-term.Based on the measurement of stability,it makes a good foundation for experimental research measuring contrast sensitivity and estimating color appearance,image quality and image perception on CRT.