The most safety refresh rate...

[L'enFer]

what is it and on what does it depend on?

[Quest_7F]

i dont really get ur question, do u mean what refresh performs better?

[L'enFer]

i mean that now refresh rate is 75 Hz (due to Catalyst CC) and i can't watch it more than 3 hours, because my eyes becomes tired fast.

[charlesbronsen]

if you want to force a refresh rate on your monitor you could use reforcehttp://www.pagehosting.co.uk/rf/

[BlueBiker]

Many people notice an annoying flicker on CRT monitors (but not LCD monitors) when the refresh rate is below 85Hz. Some even run their monitors at 100Hz or higher to get a rock-solid image.

The ability to run high vertical refresh rates depends on:

The display resolution
The monitor's horizontal refresh rate in kHz
The monitor's bandwidth in MHz
The video card's RAMDAC bandwidth in MHz

What resolution do you want to run, and what model monitor and video card are you using?

[Nanometer]

I used to run my screen at 100Hz, buy an LCD and don't worry about that stuff.

[Yoxxy]

Yeah. 100hz was good when I am on CRT. Hard to change your mindset that 60hz on an LCD is just as good if not better. At this point LCDs have beomce so good, and so cheap that I see no reason for anoyne not to buy one.

[RPGWiZaRD]

I don't like LCDs cuz of the low refresh rate so I hunt especially used highend 19" CRTs that supports 100Hz up to 1280x1024 and 1600x1200 @ 85Hz since people are "stupid" and sell em all for like below $100 despite costing like $800 when new. Personally I would pay just as much for a retail without errors trinitron CRT as an expensier 19" LCD.

I'm too used with 100Hz CRT mode so can't be bothered with 75 or 60. I wish I couldn't notice the difference tho as I can't stay with CRTs forever. Why can't LCD monitors have 100Hz tho? I know of a 32" Philips TV that has this support...

I really pray next mainstream type won't have the same 60 & 75Hz standards tho. :(

EDIT: Was searching for this TV on google and then I end up finding this INTERESTING quite new article: http://www.behardware.com/articles/641-1/1rst-lcd-at-100-hz-the-end-of-after-glow.html If that's true then I can't wait for year 2007. Boy this made my day! 100Hz LCDs coming, it's too good to be true and much sooner than I expected I would have to wait! It may come with a price premium or whatever, I'm buying one whenever possible. *jumps around like a 5 year old kid during xmas*

[Soulburner]

60Hz on an LCD is fine.

Try to stay at or above 75Hz on a CRT. That will depend on the monitor.

Mine at 85Hz runs the best, but the image is not nearly as crisp as 60Hz, which hurts to watch so I stay at 85Hz.

[BlueBiker]

Mine at 85Hz runs the best, but the image is not nearly as crisp as 60Hz, which hurts to watch so I stay at 85Hz
If that's true, you may have a cheap VGA cable that's unable to transmit the higher bandwidth 85Hz signal with sufficient fidelity.

[L'enFer]

60Hz on an LCD is fine
i can't say so... i've just tried it and... i don't know how to say it, but i can't watch at this.
i've Samsung 193P+, current resolution is 1280x1024, but the highest refresh rate i can see in Catalyst CC is 75 Hz...

[BlueBiker]

There is no higher refresh rate supported on this monitor at 1280x1024, so Catalyst can't offer it.

Switch to a digital DVI cable. There is no flicker on an LCD, but if you're seeing a wavering or sparkling effect it's because your analog signal isn't quite aligned with the pixels on the screen. Send a full digital signal and you won't have that problem.

[L'enFer]

BlueBiker, thanx, i'll try it.

[Soulburner]

If that's true, you may have a cheap VGA cable that's unable to transmit the higher bandwidth 85Hz signal with sufficient fidelity.
That is possible, and I never thought about it. I've just been using the cable supplied by Sony (this is a 19" Trinitron) for the last 4 years. I am looking at widescreen LCD's anyway. After using my gf's new Dell laptop I am really jealous of that screen, it looks way better than this thing ever has.

[Poodle]

That is possible, and I never thought about it. I've just been using the cable supplied by Sony (this is a 19" Trinitron) for the last 4 years. I am looking at widescreen LCD's anyway. After using my gf's new Dell laptop I am really jealous of that screen, it looks way better than this thing ever has.

yeah the samsung wides (i think they make dell's) are great. I love my 244t. Games have never looked this crisp. And it's fast aswell and supports hdcp and all you can think of. Great monitor. :)

[Darkenreaper57]

i can't say so... i've just tried it and... i don't know how to say it, but i can't watch at this.
i've Samsung 193P+, current resolution is 1280x1024, but the highest refresh rate i can see in Catalyst CC is 75 Hz...

You do realize that unlike CRT's, LCD's do not constantly refresh their colors, right? That is, a pixel remains the same color until it must "twist" to change to another. There is no refresh flicker, since an electron beam is not drawing the image at a specified frequency (this is where the 60,80,etc Hz comes from).

Running a LCD at 60 or 75 Hz will not change anything for the end user, as least in reference to flicker (as none exists!).

What annoys you is perhaps the response time of an LCD, which may cause "ghosting", although this isn't as much of an issue with LCD's with a response time at or less than 16ms (i.e. any decent LCD manufactured within the past few years). Yeah, I could go more into response time, (black-white, etc) but I don't think that is necessary.

Just a FYI :) .

[L'enFer]

i swithed to DVI cable, but unfortunately i don't see any improvements...

[BlueBiker]

L'enFer, we can't help you if you don't describe the visual problem you're noticing. You've told us that you get headaches, but you haven't said anything about the monitor's image!

Maybe you need a new eyeglass prescription or need to adjust the ambient light in your office. You could also play with brightness and contrast settings.

[L'enFer]

BlueBiker, with headaches it's alright now, but there is problem with smoothing: fonts like Comic Sans have a "saw" effect... it's becoming better when i used "ClearType" for smoothing fonts, but it's not enough...

[WeStSiDePLaYa]

like it has been stated. refresh rate wont matter for anything besides gaming(when tearing can occur due to low refresh)

sounds though like your have problems with your monitors horrible response time of 20ms.

if your getting headaches, its NOT because of the refresh rate. it is impossible with LCD, either something else is giving you the headache, or its placebo effect.

[BlueBiker]

The Samsung 193P+ has an unusually coarse pixel pitch of 0.294mm. That means the individual pixels are large enough that they produce a grainy stair-step image.

Buy another LCD with a lower pixel pitch of .27mm or even .24mm and the graininess will be much less noticeable. It won't cure headaches, but it'll look smoother.

[L'enFer]

BlueBiker, thanx for advice. can u recommend to me any such monitor? is it: BenQ FP202W Black 20.1" (http://www.newegg.com/Product/Product.asp?Item=N82E16824014105) what i need?
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and why does everybody talk about headache here? i didn't say that i've it, i said i've my eyes sick after long time watching in my monitor...

[BlueBiker]

Its 0.258mm pixel pitch should be noticeably better. The 8ms response time might(?) be slow enough to produce a little ghosting or smearing when watching videos or gaming, at least compared to some other units available now.

Suggest you ask other people who have a lot more experience with displaying motion on LCD's than I do.

[Cappie]

Its common knowledge that watching a PC monitor is bad for the eyes regardless of what refreshrate it has. Best is to schedule timeouts, lets say every 20min or so you should look at a more distant object, preferably something green(as in trees, other nature stuff). The distance helps relieve the eyes and the colour green, well its nature eh and its good for ya. Don't believe this then do a google search and you'll see I am right. You don't need to look longer than 30sec, thats all, every 20-30min you look at a distant green object to relieve the eyes, its as simple as that. Oooh and plz ooh plz avoid TL tubelights(fluorescent tubes), these are cause of many headaches as well, replace them with normal lightbulbs or whatever.

[L'enFer]

The 8ms response time might(?) be slow enough to produce a little ghosting or smearing
well, i don't think so, because my 193P+ has 20 ms of repsonse time and i havn't seen any smearing/ghosting and this BenQ has 8 ms...