[Solved] 120HZ Monitor, will it help with eye strain?

Will a true 120hz monitor,like the Samsung unit for 3D help with eye strain? Thanks for your help.

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Eye strain caused by flickering was a problem for CRT monitors not LCD because they do not "refresh" like CRT monitors. So... no.

Reply to enzo matrix

^Yeah, in a CRT, it actually flickers which hurt the eyes but LCD's don't have that problem a 60hz will be fine.

Reply to blackhawk1928

Disagree, 120hz monitors will make your LCD "feel" like a crt because everything move more fluidy.......... mouse, graphics in some games, etc. Will help kill some of the lag/ghosting/.... don't know the right terminology, but 60hz monitors seem to not display the graphics quick enough and cause some kind of fuzziness..??? because the 60rate can't give it to you fast enough.............Anybody know WTF I'm talking about that could explain it better...???? PLEASE! You gotta make your video card do it though ( 120Hz refresh rate )

Reply to swifty_morgan

Ghosting is caused by response time, if its slow like 8ms or more then you get it, but anything below 8ms usually doesn't have it. And on an LCD screen i'd really like to see you notice a difference between 60 and 120hz refresh rates...and the lag you are talking about is just a low fps.

Reply to blackhawk1928

Best answer

+1 60Hz for LCD is fine becasue it is always lit, only changes pixel color when refresh, it does not turn it off. On crt's there is one beam that scans the screen and lits pixels one by one, by the time it returns to the same pixel it has faded to dark. Check the photos taken of crt's You will see black lines on them where the pixels has faded out. On LCD photos You will see full screen because it is always lit and just changes pixel color /brightness when refreshed. I can see CRT's flicker at 60Hz but most of the people cannot see it. I need at least 70Hz for CRT but LCD is just fine at 60Hz.

Eye strain is caused also by other factors not only by flicker. Because You are looking at the same distance all the time eyes are remain focused at the same distance and does not get exercise.

Other one is That if You are concentrating hard on what is going on screen You blink less frequent. Blinking cleans eye surface, applies moisture and makes eye to refocus giving it some exercise.

Or maybe You are just sitting too close to the screen.

Take frequent barkes, give eyes some workut looking at objects at different distances, sit further from screen.

Reply to ainarssems

have you seen an optician?

Reply to 13thmonkey

Thanks for the information!!!!

Reply to Gabriel64

A small thing to add, if you have a TFT screen, make sure you are connected via a digital source (ie DVI or HDMI) - I find that when you have an analogue signal you still get some sort of refresh shimmer that does give me eye strain, but it's all fixed with a true digital source signal.

Reply to jamesgoddard

Thanks again

Reply to Gabriel64

I've had eye strain problems for years with computer monitors. It is not an issue of focusing too close. I don't know exactly what the problem is. I do know that if you monitor can't display a certain color it will quickly flash between two similar colors to give your brain the illusion that you're seeing the correct color. This could be the problem. Also the type of backlight could be the problem. My eyes seem equally bothered by both fluorescent or led backlighting.

Actually even if I look super close to my monitor, just a few inches away at a white area there is a sort of buzzing going on. My eyes are bothered much more by lots of white space on the monitor which is how most websites are designed. On my PC I went into preferences and changed all my white backgrounds to gray. This has helped a bit. My eyes down burn as much. I have a feeling a higher refresh rate will actually help.

Reply to itsdonny

^No...higher refresh rate only helps on crt monitors, you need to understand how the different monitors work. Refresh rate has nothing to do with it. In a crt screen, there is an electron beam projector that shoots electrons at a phosphorus material with color on the actual screen. The electron beam can only do a certain if not 1 pixel at a time. Therefore to display an entire screen, the tiny beam projector must rotate and turn to get the beam aimed exactly at the amount of pixels the TV is, so lets say the TV shows 1080p. This means that the crt monitor has 1920x1080=approximatly 2,000,000 pixels (if i did my math correctly). It needs to send a certain beam at a certain pixel 2 million times in a fraction of a second to refresh the screen. Now the flickering part comes in when, the beam projector has passed the pixel and goes to new ones, the ones it passed already turn off and must wait for the next round of electron beams to come along witht the appropriate command and thats why the screen flickers many times a second. The faster the beam projector is, the less flickering cause it canr refresh is many more times. Thats why CRT monitors can cause eye strain and brain aches. LCD's do not have this problem, the technology is much different, in an LCD, it has a backlight which is always on, it never flickers, the only thing that changes is the liquid crystals which shift colors. Thats why LCD's dont cause eye strain or seizures since there is no flashing. The refresh rate really doesn't matter. You wont notice, rather the response time is what matters because thats how fast the crystals can change color but either way none of those should be causing any kind of eye or brain strain.

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Reply to blackhawk1928

blackhawk1928 wrote :

^No...higher refresh rate only helps on crt monitors, you need to understand how the different monitors work. Refresh rate has nothing to do with it. In a crt screen, there is an electron beam projector that shoots electrons at a phosphorus material with color on the actual screen. The electron beam can only do a certain if not 1 pixel at a time. Therefore to display an entire screen, the tiny beam projector must rotate and turn to get the beam aimed exactly at the amount of pixels the TV is, so lets say the TV shows 1080p. This means that the crt monitor has 1920x1080=approximatly 2,000,000 pixels (if i did my math correctly). It needs to send a certain beam at a certain pixel 2 million times in a fraction of a second to refresh the screen. Now the flickering part comes in when, the beam projector has passed the pixel and goes to new ones, the ones it passed already turn off and must wait for the next round of electron beams to come along witht the appropriate command and thats why the screen flickers many times a second. The faster the beam projector is, the less flickering cause it canr refresh is many more times. Thats why CRT monitors can cause eye strain and brain aches. LCD's do not have this problem, the technology is much different, in an LCD, it has a backlight which is always on, it never flickers, the only thing that changes is the liquid crystals which shift colors. Thats why LCD's dont cause eye strain or seizures since there is no flashing. The refresh rate really doesn't matter. You wont notice, rather the response time is what matters because thats how fast the crystals can change color but either way none of those should be causing any kind of eye or brain strain.

I understand the differences between monitors and I realize that on paper it may seem that there should be no eye strain with an LCD monitor but for some people, like me, there is. This is no doubt not an issue for you. I wish it weren't for me either. I will continue to look for a solution. Ironically a CRT monitor is easier on my eyes.

Reply to itsdonny

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