New flicker free monitor burns eyes

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May 9, 2013
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I bought a Benq gw2470h monitor about a month ago and it`s a nice monitor except it hurts my eyes. It is flicker free so I thought that meant it would not cause eye strain. I have tried reducing the brightness to around 30( which makes quite dim), tried turning the blue light down 70%, but it doesn`t help at all. Is this normal for flicker free monitors?

My last monitor was a CRT and there were no eye strain issues. Not sure why.
 
It takes a while to get used to.....making the jump from CRT to LCD back in 2011 was painfull at best it took a good week or more and when I mean pain it was pain not just burning but everything neurological was going on. BTW BenQ sucks at default try turning the settings down on your Nvidia control panel.

I bought a totally of 3 BenQ monitors I sold two of them I guess the Higher Quality ones are better then the 200.00 XL variety.
 
If you have it connected trough VGA change it immediately to a cable that carries a digital signal, be that DVI, HDMI or DisplayPort - whatever suites you best. VGA is subject to electromagnetic interference and can sometimes cause very strange flickers. I used to have a problem of this sort that caused me extreme pain. I remember one night a few months ago I decided to play CS 1.6 with the buds. Played for 2 hours. Didn't sleep that night. The headache I had was crazier than anything I have ever had before. Here's how it looked - https://www.youtube.com/watch?v=BL6NCjydJhg

It takes a while to get used to.....making the jump from CRT to LCD back in 2011 was painfull at best it took a good week or more and when I mean pain it was pain not just burning but everything neurological was going on.

What causes this though? Why would you have a hard time adapting to something that is supposedly less strainful on the eyes? Especially in the case of CRT > flicker free LED. Are there any articles or research done on this topic?
 
Definitely. The monitor's only digital input option is HDMI, so go with that, and make sure that the refresh rate is set to 60 Hz.
 
There are tons of things that could be causing problems. It could be as simple as sitting too close to your monitor.
 
If you have it connected trough VGA change it immediately to a cable that carries a digital signal, be that DVI, HDMI or DisplayPort - whatever suites you best. VGA is subject to electromagnetic interference and can sometimes cause very strange flickers. I used to have a problem of this sort that caused me extreme pain. I remember one night a few months ago I decided to play CS 1.6 with the buds. Played for 2 hours. Didn't sleep that night. The headache I had was crazier than anything I have ever had before. Here's how it looked - https://www.youtube.com/watch?v=BL6NCjydJhg



What causes this though? Why would you have a hard time adapting to something that is supposedly less strainful on the eyes? Especially in the case of CRT > flicker free LED. Are there any articles or research done on this topic?

I've got hooked up through a HDMI cable, tried 72hz and 60 hz both cause strain, and the monitor is sitting about 30 inches away.

Would a higher dpi monitor help? I was thinking about getting a 24-25 1440p monitor before I bought this one.
 
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Have you adjusted the display's contrast per this page ? Also, I don't know if your monitor has a sharpness adjustment, but if it does and it's set too high (or perhaps too low), it can be very uncomfortable for the eyes.
 
What causes this though? Why would you have a hard time adapting to something that is supposedly less strainful on the eyes? Especially in the case of CRT > flicker free LED. Are there any articles or research done on this topic?

I guess the sample-and-hold blur of LCD's also contributes to this. Probably screws up the mind that was so hardwired to see clear motion and is now seeing motion blur everywhere.
 
If you're doing basic desktop stuff change your DPI to something higher because you might not be used to the sharpness of the LCD and your eyes might be focusing on the matrix instead of what used to be a softer image. If you're gaming, like people have said already, you'll have to get used to the inherently blurry nature of the technology when handling motion.
 
Try to find a display using CCFL instead of that LED that we're being sold.
 
I have the same issue with the LED panels. There are already a few topics on this forum related to this.
Use your old CRT or buy a CCFL like Iching said.
 
Eh not all LED panels do that. My Catleap 2B doens't have PWM-flickering...but I'll admit it's nowhere near as easy on the eyes as my ancient Dell 2405 (from 2005).

Holy crap...I've had that monitor for a decade. What a trooper :p

As for LED panels that do have PWM (e.g. XPS 2015 13"-laptop) - it makes them unusable.
I noticed it right after I opened it...and then a quick search online confirmed it. With review sites like TFT - you have a good chance of learning about PWM flicker before you even purchase it - chances are it's already been documented.

(In my case, I was just stupid and didn't Google ahead of time, thanks to the hype haha)
 
My LED flickers as hell and all it makes for me is making motion less blurred (it appears are few sharp images rather than one blurry smear). Flicker also improve sharpness of stationary images when moving eyes around.

When it comes to flickering CRT's are unquestionable king https://www.youtube.com/watch?v=lRidfW_l4vs

Maybe what OP needs is not PWM-free monitor but the one with strobing?
120Hz + strobing is closes one can get to CRT when it comes to motion clarity and overall 'feel' of a monitor.

Imho all those headaches and eyeaches are caused not by flickering or not but brain wanting to see something in a way that it not compatible with how it needs to be seen. Like AG coating causing severe eyestrain in some people is ridiculous but it happens anyway. I have three monitors, CRT, flickery LED IPS and CCFL IPS with lamp so dim that it is below 100cd/m2 after calibration at 100% brightness thus completely PWM-free, and each of these monitors needs to be 'seen' differently or it might cause tension which can lead to headache. I can literally feel that my eyes and brain watch CRT very differently than LCDs, and even with LCDs which both have identical coating there is difference.

So @OP, you need to
a) get used to it, expect all motion to be blur as hell, even when nothing is moving except your eyes,
b) get strobed IPS
c) use CRT
 
FlyToRainbowRay your post really concerns me because I was about to purchase that monitor myself and I have also been using CRT's up until now so we could be fairly similar in this regard. I do have problems with bright lights, white screens and general high brightness levels such as bright sunshine. I do everything I can to reduce the white backgrounds such as use Proximitron with JDList to replace white backgrounds and various Firefox/Palemoon extensions to eliminate objectionable colours.

Traditional Chinese Medicine connects the liver with the eyes, a hot liver, as in overworked, can cause the eyes to become red and sensitive to light. The bodies cortisol levels are increased which increases the problem. This is where my problems come from and my dislike of bright screens. I am not saying that things like motion blur are not also a problem because it is an unnatural thing which the brain could react to.

What I need to do is go and have a long look at a few monitors to try to see if they cause me any problems. I am not at all hopeful and it has really thrown a spanner in the works. However thank you for making me aware of the problem because I will go and look at a monitor and see if I can stare at it for as long as the shop allows.

I hope that you can get something sorted out that you can use which doesn't cause you problems. Best of luck.
 
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