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    A question about 120hz 3D Screens Found on Laptops - CRT?

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by yutsmail, May 1, 2011.

  1. yutsmail

    yutsmail Notebook Consultant

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    Hi there,

    I read someone saying in this forum that 120hz 3D screens found on laptops these days like ASUS G73SW-3DE are better for your eyes. What exactly makes them better for your eyes?

    I still have a CRT monitor and use resolutions that support 120 to 160hz!! and I play games on 160hz that support it. There is nothing like it. Are these 120hz Laptop screens Hz done/calculated the same way as CRT monitors or are they entirely different?

    Thank you
     
    yutsmail, May 1, 2011
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  2. Meaker@Sager

    Meaker@Sager Company Representative

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    CRT is done by firing an electron beam at phosphorus spots (RGB to make the colours).

    This scans across and down, the speed of this determines how many times it can draw the screen per second.

    Too slow and it flickers and your eyes pick up on this, even if the flicker cant be seen consciously. Above 100hz is going to be nice.

    LCDs are a fixed array of pixels, they are all always on so the display does not flicker.

    The refresh rate is how many times per second the pixels can change. (not to be confused with response time). Higher hz gives better motion on screen but I dont see how it helps your eyes.

    3d monitors are also brighter as the glasses filter out a lot of light so it will appear darker when looking through them, therefore its brighter to make up for this.

    Since its newer and more expensive tech the screens tend to be of higher quality too.
     
    Meaker@Sager, May 1, 2011
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