Hz HZ hz Hz (hertz( (Score 1)

CRT screens have the refresh from up to down, 60 times per second, 85 times, 100 times etc. The less the refresh rate is the flicker effect is bigger(image trembels). On Lcd screens the refresh rate it is not done by line like on CRT is done by pixel, this reduces the flicker effect GREATLY so your eyes don't get tired that fast. It is not that the background is white, it is the flicker effect that is bigger. This is the main source for eye strain in my opinion. The monitor isn't as bright as the light outside at all. There`s no monitor more bright than the light outside