LCD vs Hertz plugged DVI or VGA??

Posted on 2006-05-15
Last Modified: 2008-03-10
Hello, i want to know if "refresh rate (hertz)" is important when you pass 16hours a day infront if a LCD monitor.
Does it make a different if i plogged DVI or VGA?
I pass a lot of hour working in front of my computer and i'm statring to have eye problem, and i want to know if it a problem if i'm running ar 60hertz with my LCD monitor

I remember that my old CRT screen was running at 85hertz, and i want to know if 60hertz on my LCD monitor is a problem.

I'm running at 1680x1050 (60 hertz) on a ViewSonic VX2025wm (20.1 wide) with a Ati Radeon Mobile X700 128mo plugged DVI.  
I'm sad to see that my new screen cannot run over 60hertz, but i want to know if it can be a problem for my eye.

I remember few years ago the told "upper" your hertz are, better it's for your eyes.
Is this so important now, with LCD plugged DVI.

Thanks for help!
Question by:jabcoco
    LVL 69

    Accepted Solution

    That refresh rate is only critical for CRTs, which repaint their screens at that rate.  It can cause eye fatigue when too low and when there is interference from other 60Hz sources, like fluorescent lights.  LCD panels do not repaint their screens - the images remain as is as long as the controller tells the pixel to stay on or off.  You should investigate other ergonomic factors, such as glare or contrast or how long you sit in front of the screen without getting up or focusing on far away objects.

    DVI or VGA on a desktop screen are not much different, if the cable is of good quality and there is no interference nearby, so that does not play a role in this.
    LVL 10

    Author Comment

    Well.. that mean that running at 1680x1050 at 60hertz is not bad for my eyes like it was with preivous CRT monitor..
    i don't have to care about this factor...
    now i should think about taking 5 minutes each hours to look far aways!!

    Simly that!?!?!
    LVL 69

    Expert Comment

    That's right.
    LVL 10

    Author Comment

    oki.. real thank Callandor!

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