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post #31 of 61
I think it comes down to personal preference and what you are using the monitor for. Personally I prefer the image quality of high quality S-IPS panels to the fluidity of the high refresh monitors. Perhaps one day we'll see a monitor with both.
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post #32 of 61
Quote:
Originally Posted by Dacipher View Post

I have tried both, it comes down to either wanting a snappier experience or beautiful,vibrant image. If you do more graphical/art work then go IPS if you want a great fps experience/snappier overall feel then 144Hz.
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post #33 of 61
Quote:
Originally Posted by senna89 View Post

IPS is only for professional use, for desktop user is useless and the difference of colors is not so big in Windows.
144Hz is better

You are completely wrong on this point.

Several years ago I bought a brand new Samsung LCD, 26", 1920x1200, TN panel. I also bought a used Dell 20". The used Dell looked SOO much better than my new monitor, so I did some research into it. Turns out the Dell was an UltraSharp model that used an S-IPS panel. That is what prompted me to replace the Samsung with a 30" Dell UltraSharp and now I have one of the Korean imports.

The image quality of S-IPS panels is considerably superior to even a good TN panel. It is noticeable in everything you do, games, desktop applications, web browsing, everything.
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post #34 of 61
Quote:
Originally Posted by Mygaffer View Post

The image quality of S-IPS panels is considerably superior to even a good TN panel. It is noticeable in everything you do, games, desktop applications, web browsing, everything.

I agree with this as well - although both monitors are good - you will be amazed at the difference IPS makes when watching movies. I have both a high refresh rate TN panel monitor, and an Korean IPS monitor. Honestly even when playing FPS games I still use the IPS.....
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post #35 of 61
Try 120hz LB guys, it's by far smoother with less motion blur than even normal 144hz.
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post #36 of 61
LB sounds like it would be not so good for those of us sensitive to pwn flicker...right?
post #37 of 61
Quote:
Originally Posted by Jodiuh View Post

LB sounds like it would be not so good for those of us sensitive to pwn flicker...right?
Not necessarily..
It depends on what you are really truly sensitive to.
Some people are sensitive to 360 Hz PWM flicker, but never had eyestrain with 120 Hz CRT and didn't have eyestrain with 120 Hz LightBoost.
TFT Central also mentions in their article that LightBoost has no PWM artifacts.

There are apparently several different reasons why eyestrain may occur with a modern LED monitor:
Quote:
  • Problem: Flicker Sensitivity
    Some people are sensitive to flicker indirectly. Most people can't "see" flicker above approximately 75 Hz. However, a few people are more sensitive to flicker, at least by "feel" (headaches etc). People like you. Sometimes people don't see the flicker but get headaches anyway (indirect effect). That's why in many countries such as Canada, we have phased out old fluorescent light ballasts (120 Hz flicker) and now use electr ballasts (20000 Hz flicker) for fluorescent lights. As a result, headaches have dropped by 50% when switching fluorescent lights from 120Hz analog ballast to 20000Hz electronic ballast. See this article:
    "Are there any health effects associated with light flicker?"
    Clue: If you get headaches even with CRT @ 120Hz, don't get LightBoost. Otherwise, it can be a candidate.
    Remedy: Get a PWM-free display if you get headaches even with CRT
    Myself: I'm not sensitive to 120 Hz flicker.
    .
  • Problem: PWM Artifacts
    pursuitcam_pwm-300x70.jpg
    Yes, that's the stroboscopic effect in action especially at lower brightness settings such as Brightness=0%. Using 360Hz PWM = triple image at 120Hz refresh, using 240Hz PWM = double image at 120 Hz refresh. A low frequency equivalent of this is the CRT 30fps@60Hz double image effect. However, PWM artifacts can be visible even at hundreds of Hertz. That said, if you have one flash per refresh, there are no multi-image artifacts (e.g. CRT, LightBoost). You can see artifacts during fast motion, such as during scrolling text or dragging a window; or moving objects in video games. One scientific way of testing is to use a motion test.
    Examples of PWM artifacts are written about at:
    Blur Busters: LCD Motion Artifacts 101
    TFT Central: Pulse Width Modulation
    Clue: You've never gotten CRT headaches or PWM headaches but your eyes see rough-looking motion blur and you get eyestrain after having gamed for a while.
    Remedy: Get a PWM-free display, or enable LightBoost on your display
    Myself: I'm sensitive to this, and these sometimes bother my eyes. Eye focus muscles can be strained by trying to focus on ugly-looking motion blur during fast motion. My eyes prefer either PWM-free operation _or_ PWM running at fps=Hz (one strobe per refresh), like a motion blur elimination backlight.
    .
  • Problem: Excessive Brightness
    Some people do get PWM headaches. However, sometimes your headache is really because of excessive brightness instead. There were people who thought they had PWM headaches; but that their headaches mostly went away when lowering brightness (increased PWM); some LED monitors are still too bright even at 0% setting. (LightBoost settings of 50% and less is dimmer than non-LightBoost Brightness of 0%). People hear rumors about PWM headaches and they get headaches, so they think they have PWM headache when it's actually excessive brightness instead. New LED monitors are often so bright, that the brightness is what gives people headaches.
    Clue: You've never gotten CRT headaches but you've gotten PWM headaches
    Remedy: Get a PWM-free display that can dim very dramatically, or enable LightBoost on your display and adjust it to LightBoost=10% (dimmest setting)
    .
  • Problem: Excessive Brightness _AND_ PWM ("pick your poison" effect)
    Catch-22 problem. Too much brightness? But you lower brightness, and now you get PWM. Ouch. If a person is simultaneously sensitive to excess brightness _and_ PWM, many of today's new modern LED monitors are often terrible for them. Sometimes a LED monitor at 0% brightness is still too bright; and you're getting a lot of PWM.
    Clue: You get headaches with CRT's, with PWM, and with bright displays
    Remedy: Get a PWM-free display that can dim a huge amount without PWM. However, if you never got headaches with CRT, then you might have been bothered by PWM artifacts; check "Problem: PWM Artifacts"

As part of running Blur Busters Blog and hearing testimonials about LightBoost, I get many dozen mixed answers; a very rough estimate is:
- over 50% of people said they had no effect; no eyestrain with LightBoost.
- under 25% said they had less eyestrain with LightBoost.
- under 25% said they had more eyestrain with LightBoost.

Some people are photosensitive, some people are color blind (approx 10% of population), some people are sensitive to flicker, some people don't have good 3D perception, everybody's vision system is different. The above list is not comprehensive; people can also get eyestrain from bad color, bad gamma, or even eyestrain from motion blur (especially if eyestrain only occurs during video games).

Most complaints were about LightBoost having poor color quality or being too dim; unrelated to eyestrain or headaches. Note, that LightBoost can be calibrated to recover most of the original color quality (via nVidia Control Panel), and using varuios crimson fixes already posted in some threads. Though it will always be dimmer than non-LightBoost operation. (when comparing LightBoost=100% versus Brightness=100%. LightBoost=100% is roughly as bright as Brightness=50%)

Dozens of people, including CallSignVega, say they hate PWM but like LightBoost.
The PWM story is full of surprises. The above post partially explains why.
Edited by mdrejhon - 3/27/13 at 6:35pm
post #38 of 61
Thank u for taking the time to lay out so much info. When brightness is @ 100%, I'm fine. The lower the brightness level, the more painful to my eyes. I'm basing this off of the benq and samsung 120hz panels.


Guru 3D posted a press release of a new VA and mentioned how its flicker free. I hope its just a matter of time before someone introduces a gaming panel without flicker.
post #39 of 61
Man its all up to you. I have used both and I personally like IPS much more. I hate the viewing angles on anything that isn't a IPS. Also I love the colors on IPS monitors.

But hey I do Graphic Design, Produce Music, Web Design, & Browser the Web all day if you were I gamer I could see why the extra Hz are nice.

It really comes down to what you want though nothing is better it's just there better for different things.

For me IPS all the way biggrin.gif
post #40 of 61
Also even when I do game or watch TV or a Movie I prefer the IPS viewing angles and color over the extra Hz.

Everyone is different though just think about what you would prefer.
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