Back light photosource each second glitters 40,000 times, the personeye cannot distinguish the frequency which this glitters, thus reducedthe eye strain, even if observed the very long time.
Back light photosource each second glitters 40,000 times, the personeye cannot distinguish the frequency which this glitters, thus reducedthe eye strain, even if observed the very long time.
背光光源每秒闪烁4万次，人眼识别不出这个闪烁的频率，从而降低了眼睛疲劳，即使观察了很长时间。