I am very excited to have found this forum! Hopefully I’m not alone in the following! The issue: The LED backlight from modern computer monitors makes me sick. However I have no problem at all with certain older LED backlit monitor models. There are some older monitors I can use for 8+ hours a day without any issue at all (see the “Successful” list below for examples), while most (all?) modern monitors released in the past 5-6 years or less cause me to experience significant symptoms (eye strain, headache, disorientation, general feeling of unease) within only a couple minutes of use (see the ”Side-Effect Causing Monitors” below)! The difference for me between these two "groups" is profound. I am trying to understand the difference better so I can locate a modern monitor that will work for me. In fact, as a computer gamer I have been on quite a quest to locate a gaming monitor that could potentially work! I have narrowed down the issue to the LED backlighting being the problem because I discovered that certain modern LED desk lamps immediately cause the same symptoms! I also believe it to be LED backlighting related because the side-effects occur even if the monitor is on but receiving no input (is showing a black screen but backlighting is yet active). I also experienced the same symptoms from an OLED TV (I had thought OLED might be a solution but in fact it was quite unbearable for me). I have found one modern TV that works no problem, a 4K Samsung (UN55TU8000FXZA). This leads me to believe there is some difference in backlighting that I do not yet understand. My current working theory is that modern LEDs produce a wider spectrum of wavelengths (visible and not visible) for the sake of color reproduction, and some wavelength(s) is/are really irritating to my retinas. Has anyone else experienced something similar? And if so, has anyone found a modern monitor (preferably a gaming monitor) that works? Thank you for ALL thoughts and suggestions! For reference: SUCCESSFUL MONITORS (I can use these 8+ hours a day no problem!): Here is a list of monitors I am sure that I CAN use for 12+ hours a day without any problem whatsoever: 1. Asus VS247H-P 23.6”, TN, 1080p, 60 Hz, 300 cd/m2 brightness, matte, 33 watt power usage, release 2/10/11. PWM detectable with camera. (Edit: Panels produced from 2012 through 2015 are totally fine, but my copy from 2018 causes symptoms!) 2. Acer G276HL Gbd 27”, VA, 1080p, 60 Hz, 300 cd/m2 brightness, matte, 24 watt power usage, release 2/1/13. PWM detectable with camera. 3. Dell P2014HT 19.5”, IPS, 900p, 60 Hz, 250 cd/m2 brightness, matte, 20 watt power usage, release late 2013. No PWM detectable. 4. Dell E177FPb 17”, TN, 1280x1024, 60 Hz, matte, release date 2007 or earlier. No PWM detectable. 5. As for a TV: 4K Samsung (UN55TU8000FXZA) I can use no problem! SIDE-EFFECT CAUSING MONITORS: Here is a list of monitors that make me sick in a few minutes: 1. Asus PG279Q 27”, IPS, 1440p, 165 Hz, 350 cd/m2 brightness, matte, up to 90 watt power usage, release 10/27/15. Flicker-free. 2. Asus PG278QR 27”, TN, 1440p, 165 Hz, 350 cd/m2 brightness, matte, up to 90 watt power usage, release 5/8/17. Flicker-free. 3. Acer XB271HU 27”, IPS, 1440p, 165 Hz, 350 cd/m2 brightness, matte, release 5/8/17. Flicker-free. 4. Asus VG248QE 24”, TN, 1080p, 144 Hz, 350 cd/m2 brightness, matte, 45 watt power usage, release 1/17/13. Flicker-free. 5. Nixeus NX-EDG27 27”, IPS, 1440p, 144 Hz, 300 cd/m2 brightness, matte, 32 watt avg/ 50 watt max, release 7/1/17. Flicker-free. 6. Asus VZ27AQ 27”, IPS, 1440p, 60 Hz, 250 cd/m2 brightness, matte, 40 watt power usage, release 5/12/17. Flicker-free. 7. Dell U2412M 24”, IPS, 1200p, 60 Hz, 300 cd/m2 brightness, matte, 38 watt, release 7/22/11. PWM detectable with camera. 8. LG 24MP59HT-P 23.8", IPS, 1080p, 75 Hz, 250 cd/m2 brightness, matte, 17.1 watt, release 2017. Flicker-free. 9. As for a TV: OLED TVs (at least LG OLED) are totally intolerable for me!

Gemsand What I personally think is the problem is that you've tried out panels which do not have good motion performance and thus could be triggering some kind of eye-strain from that. If you are able to, try one of the following monitors: Viewsonic XG2431 (IPS), Dell S2522HG (IPS), AOC 24G2ZU (IPS), Omen X 25 / Omen X 25f (both TN) //////////////////////////////////////////////////////////////////////////////////////////////////////////// UPDATE: XG2431 does have some type of subtle flicker in some RGB transitions, while the S2522HG has static dithering, slightly green-ish text rendering, be aware/cautious! Alternatives: VG259QM, VG258QM, AW2523HF, AW2521HF (true 8-bit), XL2566K, MAG251RX (if 1080p) 27G1S, PG27AQN (if 1440p) //////////////////////////////////////////////////////////////////////////////////////////////////////////// These are some of the fastest LCD panels available and could work out if this eyestrain is related to motion blur (all of these are flicker-free too!) If you choose the IPS models, you're less likely to have dithering and LCD artifacts, as IPS is less prone to this. You could also consider getting some blue light filtering eyeglasses, such as the Uvex Skyper, found from this video //////////////////////////////////////////////////////////////////////////////////////////////////////////// UPDATE: Not a big fan of this approach above anymore , as you're gimping eyesight by looking through acryllic. //////////////////////////////////////////////////////////////////////////////////////////////////////////// I will also quote Chief's reply to a similar problem from the Blurbusters forums for some guidance, hope it can help you! There are MANY causes of eyestrain that are not related to flicker or PWM. - antiglare - polarization - pixel structure - brightness - contrast - color gamut - blur eyestrain - stutter eyestrain - screen too bright relative to environment - etc Everybody is different. Some people get more motion blur eyestrain, to the point where strobing reduces eystrain (especially when using VSYNC ON framerate=Hz, especially when reducing strobe crosstalk via refresh rate headroom, e.g. 120fps 120Hz on a 240Hz panel). So your eyestrain won't be the same as others. Strobing framerate=Hz is often less eyestrain than PWM dimming, because the phantom array effect is the bigger eyestrain cause than the direct flicker itself. Brightness strain test: Reduce brightness via monitor OSD. If already too low, adjust using NVIDIA Control Panel. Add a bias light behind your monitor so your monitor is not rudely blatantly the brightest object in your vision field. Blur eyestrain: Turn strobing on and see what happens (optional, but recommended, use framerate=Hz too as strobing amplifies jitters) Stutter eyestrain: Test VSYNC ON (or similar framerate=Hz sync technology like RTSS Scanline Sync) or use VRR. Color gamut strain test: Reduce contrast in NVIDIA Control Panel and see what happens Polarization strain test: Most monitors use a rotatable stand, so rotate your monitor 90 degrees (And configure Control Panel for a portrait display) and see if your eyestrain changes on your IPS panel. Some people are eyestrain-sensitive to the light polarization of certain LCDs. Many IPS panels are polarized 90 degrees differently than many TN panels. Also, AUO vs Innolux sometimes have different polarizations. Some are difficult to test (e.g. antiglare texture test). Unfortuantely, you will have to self-diagnose, as there are too many eyestrain causes of a monitor.

qb74 Thank you for your thoughts sir! I will carefully consider what you have provided. My experience with LED desk lamps causing the same issue, and also monitors which are not showing an image but are still powered on with black screen also causing the same issue, makes me doubt motion performance being the issue- but I am definitely willing to consider and investigate all ideas. Thank you!

I dont think it has anything to do with age. LED's have different drivers across manufacturers, different quality when it comes to color reproduction, and all sorts of other differences.

Gemsand You may check this post of mine from some time : https://ledstrain.org/d/1559-alternative-causes-to-the-symptoms-we-are-experiencing I think there are multiple causes, from hardware but also from software with the drivers. This is complex. But obviously the screens nowadays just look different from some years ago, and for me they look straight worse. One main thing is they are warmer and often have an intense red wavelenght peak that could hurt our eyes, just like looking at a laser. Personally, I've noticed this not only on monitors, but also on TVs, on smarphones screens and more problematic, on cars dashboards. There seems it's a universal change. I don't know what it is exactly though, but it could be related to some power saving techniques, in the line of "reducing" global warming.

@Liberator005 Great post sir, thank you! I think you are on point with this. This following statement resonates for me: "One main thing is they are warmer and often have an intense red wavelength peak that could hurt our eyes, just like looking at a laser." - When I look at the monitors that bother me, I can typically immediately identify they look "warmer" somehow. I once read that LEDs have added red wavelengths in order to fill out the color spectrum so that they can make certain color spectrum claims for marketing purposes. (I don't have a link for that right now but I'll post it if I find it.) Your linked forum post is very helpful and mirrors my own thoughts after many hours of digging into this myself. In the spirit of testing this theory, I am very much wondering if there is a way to differentiate which screens use WLEDs that are blue LEDs with yellow phosphors, and which are blue LEDs with red and green phosphors. (I once emailed several monitor companies asking them for specs on the WLED backlights used and they all refused to provide that information.) Most technical spec sites just list "WLED," it seems very difficult to identify the exact LED type.

Gemsand I am having quite a problem with new monitors… I made a post about it here but I will post also my findings here. Hope this helps, and maybe we can cross check my findings as well: Hello everyone. My usual monitor is a LG 29UM59-P. Worked great for many years. Still does. Also as a 2nd monitor I used a Philips 227E. Also great for many years. Finally wanted an upgrade. Looked for a gaming monitor (I also stream/record) in 1080p. So looked for a IPS, 144-240 Hz, with also good reviews regarding colors for editing. Went already through 3 monitors : Gaming LED IPS Acer Nitro 24.5" - XV253QPbmiiprzx (bad eye sore and headaches). Found out the screen was not flickering but kind of a on-off/really fast shake (could see it in games in dark areas especially) Ips Lenovo Legion y25-25 - also eye sores Now I have an IPS AOC 23.8" - 24G2SPU/BK - also eye pain and headaches I just can't understand why this happens. I constantly feel like/can see that fast shake or fast on-off of the screen. Dunno how to say it otherwise. All monitors are flicker free (did all sorts of test) , no bands going up and down on the screens. NOW... I have eye glasses with add on tints. The blue light (i guess) tint blocked helps a lot with blue light and wanted to test them out. Here is how a real scene look likes vs. using the glasses. Also the 2 screens : My old monitor vs. AOC (normal screens) and with glasses. Something is really ODD. Why does the AOC has minimal changes and not as much as my old LG (which simulates the real life scenario?) Can this have something to do with the eyes strain? I only tested the glasses on the AOC but why is this such a big difference? With or without glasses I can stay on the LG 24/24 with no pain... on the AOC it hurts with or without glasses. Also went to a shop and tested a whole row of monitors. Out of about 30 of them, 6 of them had the yellow tin when looked on with glasses, the other didn't. All monitors looked "normal" and similar with the naked eye. The guy from the store said it might have to do with the technology of the panel. Indeed LG (my old monitor) has a technology called "Eye Comfort" but I don't know if it's that or not. Any ideas? Can anybody test also? if they have a monitor which doesn't hurt anymore and a pair of glasses that block blue light to make the same test like real world vs glasses? but with the monitor?

At a guess, the light spectrum between both monitors is different.

Marius Look at my reply above, I'd honestly consider switching to faster and better LCD's as you seem to also have tried worse panels.

JTL Yes, the LG emits more blue light than the AOC that's why the lens is more yellow. Same reason leaves are green, they reflect green light.

@Marius Do you mean the monitors that show as more yellow are tolerable by you without glasses? (Whereas the LG on the right is intolerable without glasses?) I would be thrilled to try some kind of similar test with my own situation- I have quite a long list of monitors that I could try this on. Do you have any details or specification about the glasses tint?

Sick with new LED backlit PC monitors, but not old- difference in backlighting?

ocean10

qb74

This sounds EXACTLY like me. Something universal seems to have changed across all types of screens. I have two old HP Elite Display E221i that I still use for work. Every modern monitor I've tried to change them with makes me feel sick almost immediately (hard to describe but something like motion sickness - foggy, headache, dizzy, and my body starts to feel very warm). I first noticed this when I upgraded to the iPhone X when it came out. I almost called 911 when I was setting it up because my symptoms were so severe (before I realized it was from the phone). Now I seem to get this feeling from monitors, laptops, many TV's, car screens etc. Old monitors I have no issues with. I use an Iphone SE 3 that I assume is still okay because it uses old screen technology.

I don't have a solution to any of this but you aren't alone.

Aquila

ocean10 Guys the problem for me is in Windows or cable connection.

Try these monitors on others devices such Android box, PS4 and check if Is ok

Gemsand

ocean10

Thanks man. Yeah for me it feels like some kind of universal change across all types of screens. For me it doesn't seem to be related to type of input: if the screen is the offensive type, no matter the input, or even if any image is even being displayed on the screen, I can feel it almost immediately and it causes significant symptoms (whereas my 10 year old monitors I can use for 12 hours a day without a problem). I am determined to find at least one modern monitor I can use, I will keep up the search and let you know if I find anything. Meanwhile please do the same!

Also just one comment regarding my latest thinking on trying to identify a cause (after much experimentation): My main 10 year old monitor that I can use all day without any problem whatsoever uses a form of temporal dithering and PWM, and that has always made me discount flicker as being my main issue. However, after having a painful recent experience with a 4k pixel-shifting DLP projector that uses a lamp (no LEDs at all!) but does flicker (both in the 240 Hz pixel-shifting flicker and also in the noticeable red/green/blue "flicker" that DLP projectors generate), I'm wondering if newer LED backlights and even OLEDs might have some other kind of inherent imperceptible flicker. Also I've experienced an LED desk lamp that caused the same exact symptoms- so I'm wondering if maybe the LEDs themselves now pulse in some way that they didn't use to. I know RGB OLEDs pulse constantly to create color and OLED monitors and TVs are terribly painful for me. Maybe all modern monitor backlights pulse in some way, perhaps as a result of reduced power consumption or something.

ocean10

Gemsand

Yeah I had assumed my initial issue was PWM because it first happened when I got the iPhone X and that seemed to be the consensus online. But then I realized I was having issues with newer iPads and the iPhone XR as well (not quite as bad but still not great).

I'm the same with you as I can literally stare at older monitors/old iPhones/iPads etc. for 12 hours straight with no symptoms at all. But same with you on an offensive screen I feel it immediately. I'm a photographer as well and all the new mirrorless cameras have electronic viewfinders which give me the same issues. Weirdly there seem to be some newish TV's that are OLED but don't make me sick. But I have no idea why. Unfortunately I think some of the symptoms might be getting worse because my body has learned to "expect" to get sick when looking at a new screen. I'm on an 8 year old laptop for travel right now because the same issue is happening with new laptop screens.

I'll definitely post a solution if I ever find one. It's depressing because so many things that I love (technology, photography, cars) all are being affected by this. I keep hoping that one day the technology will just switch overnight sort of how this all started to begin with.

Hordani

Gemsand

I had many monitors, the best so far are Xiaomi Mi Curved Gaming 34 and NEC E271n(There is also a more expensive better version EA271Q). Maybe check these.

Xiaomi 34 (I used the resolution 2560x1440, brightness 30, contrast 50, medium response time) I couldn't use the resolution 3440x1440 even 5 min.

https://www.displayspecifications.com/en/model/259c1bb0

NEC E271N (I use it now. Brightness 10, contrast 27, refresh rate 50Hz(more comfortable than 60hz for me))

https://www.displayspecifications.com/en/model/b7321328

*Lenovo G27QC-30 was also good, but he had 6bits+FRC.

https://www.displayspecifications.com/en/model/7e912d21

*Nec EA271Q https://www.displayspecifications.com/en/model/4c8c14d5

Fakir35

Hordani Lenovo G27QC-30 was also good, but he had 6bits+FRC.

Have you suggest this monitor? Do you have any eye strain/ eye burning issues even looking it for long hours?
Can you share your experience with it?

Pudentane

Glad to be here, guys. Sharing your fate, can't use any modern LED displays as they are all equally intolerable and have the same noxious effect on me. I have switched 4 monitors in the past couple of years and it wasn't easy for me. I had to buy and sell them every time, some of you should know how tiresome that can be and I think this is pretty much the end of the line for me. Now I'm targetting a really old monitor, preferably CCFL-backlit one. Of course, I'd rather it was new and boxed and I would probably pay over $200 for one, but if I don't find one like that I will just have to settle for a used and cheaper one. C'est la vie.

The monitors I've tried:

HP Z23i (IPS, 1080p, 60hz, PWM, 250cd/m2, 2013)
ViewSonic VG2719 (IPS/ADS, 1080p, 75hz, flicker-free, 300cd/m2 2020)
Asus MG248QR (TN+Film, 1080p, 144hz, flicker-free, 350cd/m2, 2016)
NEC E221N (AH-IPS, 1080p, 60hz, flicker-free, 250cd/m2, 2017)

All of these are equally unbearable. I've tried everything, can't even bother writing the full report, because none of it really matters. It's positively something in the backlight or temporal dithering/FRC or whatever. I don't care to find out anymore, because whatever it is we can't fix it anyway. I just want a normal thing for Christ sake.

At first I thought it's an issue specific to IPS technology as a lot of people seem to complain about it, but it's not true. I believe the reason people tend to assume that is because at some point they move from their older TN CCFL- or early type LED-backlit panels to newer ones, which are mostly IPS these days, and naturally conclude it must be it. Wrong, and I have personally confirmed it. You may have noticed a TN monitor on my list. Believe it or not, I got it specifically to get rid of the eye-strain while sacrificing some of the advantages of IPS. Waste of time, folks. It was the same exact thing. Same. Exact. Thing.

The actual symptoms. In about 5-10 minutes I begin to feel some pressure in my eyes, like I can't relax them for a second and little by little my temple-side ocular muscles get strained more and more. Basically, the longer I look at it, the worse it gets. I'm pretty sure at some point my eyes would simply explode if I tried to soldier through it, which I never did, simply because it gets bad enough much sooner. I also get this tinkling sensation in my forehead, yawny and drowsy feeling as well as mild nausea.

The only displays that don't currently bother me is my laptop screen (HP ZBook 15 G2), which is probably one of the worst TN panels with regards to color and viewing angles, and a couple of really ancient CCFL-type 4:3 displays - LG Flatron L1952S and L1753TR. These don't give me any problems whatsoever, which lead me to conclude that I should be specifically looking for something old enough to be sure the problem isn't there. I think anything between 2008 and 2010 should be good. I got my eye on NEC MultiSync EA231WMI, an all-round decent IPS monitor, which did really well back in the day and if I ever get a chance it's going to be my ultimate purchase. I just have a hunch that all my problems will end right there. The only downside to it is that it's a little more power hungry, but I'd much rather it consumed more power than my eyes and sanity.

By the way, I do confirm that most of these displays are warm and kind of toxic to look at, it feels like there's just too much red and green in them, while blue seems to be consumed by reds and greens and appear somewhat indistinct and washed out, BUT… the latest monitor I got (NEC E221N) is different. It's pretty cold by default and has overall decent blues. Colors are not oversaturated, they're just normal. Frankly, it feels more like a level-upped TN-Film panel, than your typical IPS. Sadly, that too doesn't help the strain.

Regarding my vision, it's not perfect anymore, my eyes see differently now, I also have hypermetropia, but it doesn't explain why I don't get issues with this older type of displays, so going "check your eyes" would be definitely irrelevant here.

Hope this is a useful input.

Gemsand

Pudentane I feel for ya man. I'm the same boat, but meanwhile this problem is a quest I am committing to solving.

Just one comment in case it is helpful: as I posted in this thread, my main monitor Asus VS247H-P built in 2012, and a copy built in 2015, do not bother me at all, but a newer copy manufactured in 2018 definitely does bother me. The color in the offending unit is also noticeably more vibrant, and it does have some of that "too warm" feeling. I am only pointing this out because this problem is not simply model specific, it seems to have crept its way into all modern panels (installed even in older monitor models).

If you find something that works for you, please do let us know! 🙂

Pudentane

Gemsand but meanwhile this problem is a quest I am committing to solving

Honestly, I think the only solution at this point is to use an older/used monitor. I'm not saying the right one doesn't exist among the modern ones, but it could take forever finding it and personally I wouldn't bother looking for it. I've done my share of buying and selling (losing money too) and want to call it a day now. I'd keep using old stuff until they officially come up with something decent. Meanwhile, I don't think even OLED is a solution, it probably shares the same curse, just that few people can report it as very few own them in the first place due to their still exorbitant pricing. I'm sure it will never enter the mainstream and a newer and cheaper technology will arrive sooner than anyone could finally afford it.

Gemsand I am only pointing this out because this problem is not simply model specific, it seems to have crept its way into all modern panels (installed even in older monitor models).

Yes, they do change little things here and there. My build of E221N is from 2022, and it seems they have fixed a few things in it judging by older user reviews, but may as well have brought the strain in, because the original build is from 2017. Either way, I wouldn't expect anything good even from 2012 to be honest. The oldest monitor on my list is HP Z23i, it's from 2013 (the build was from 2013 too, it said so on the back) and frankly it was the worst. Not sure if PWM is to blame, I reckon the PWM hazard is overestimated and flicker-free feature is nothing but a marketing ruse. Saying this, because I also had an even older TN Samsung something, can't remember the model, but I think it was from 2009. It didn't give me any strain whatsoever, yet it was LED and it also had PWM. No issues. It had the worst image and color reproduction though, had a pinkish tint on whites, so it seems the worse the actual image quality the better for the eyes somehow. My laptop screen is also an utter crap, yet it's not giving me any probs. I've seen reports about early Asus VG248QE build, people complained about PWM and eye-strain, but Asus fixed it a bit later and people no longer complained about it. Not sure if no-PWM is what fixed it though, but whoever complained about VG248QE here may have used an earlier build of it, I dunno.

Gemsand The color in the offending unit is also noticeably more vibrant, and it does have some of that "too warm" feeling.

Like I said, they aren't all warm. Asus MG248QR and NEC E221N on my list aren't warm at all, they are coolish. Seriously. Now, HP Z23i and Viewsonic VG2719 are definitely warm and oversaturated. The reds are way too red, greens are too green. Toxic red and acid green, while blue feels weird and not even blue enough, especially on HP Z23i. It's like grey-purplish or something. So the only things that look good on these are pictures of nature, fruit, etc, but when you try watching a movie it looks completely unnatural, reds and greens are way too accentuated and pop where they shouldn't really. I'd say, it's low ̶b̶u̶d̶g̶e̶t̶ quality production for simple minds who think extremely juicy pics of nature and fruit is what makes a good display. Wrong. Either way, I don't think color reproduction or whatever is behind this effect is what accounts for the eye-strain as I have already pointed out two other monitors on my list, which successfully break this theory.

Gemsand If you find something that works for you, please do let us know! 🙂

Absolutely. It's definitely going to be NEC EA231WMi, though. Why? Because it's CCFL-backlit, period. I know there is probably some type of a LED display lurking out there, which is probably good for me, but I don't care anymore as I don't want to deal with ANY LEDs. I'm positive CCFL is not going to be a problem, though, plus it really just looks better than LED as it's almost naturally lit. And if I still have a problem, then it's definitely my damaged eyes or brains. I know for a fact that 4:3-type CCFL monitors don't give me any issues like LG Flatron L1x53S/TR or Samsung Syncmaster x43n, or probably NEC EA190M, which I've also been craving. These are all legendary TNs, which never caused any issues to anybody. I have LG 1753TR and LG 1952S, no issues. Positively. Except they aren't good for everything these days anymore, only for movies and older games.

smilem

I got sick in year 2000 when first Samsung 19" CCFL monitor came out. Even damaged my eyes to -0.25 -0.50, not fixed by wearing positive lenses. You say CCFL is safe when infact it is very not save due to blue spike at 400nm light hazard.

Pudentane

Ok guys, back with good news.

I managed to find a used NEC EA231WMI and bought it. And guess what… problem solved. It met my expectations accurately and all my problems went out the window right there. No more strain. I had to get used to it a little at first though and adjust the brightness, which is now slightly below 50%, but in the end it's an absolute victory. So, those of you who suffer from modern panels, now you know you have at least one decent fallback option in case everything else fails. I absolutely love the monitor, good colors, good viewing angles (in fact, better than with the rest I've had before) good response time, good everything. I don't think I want anything better, because I don't even believe it can get any better at this point.

smilem Sorry to hear that man and also very much surprised. Perhaps early LCDs weren't that great after all or maybe it's just you and your environment, hardware or even OS. You're not a *nix user by any chance are you? Either way, CCFLs have saved people a lot of bs that they had with modern LEDs, which by far are much much more likely to destroy your eyes. Really. I mean, the "pleasant" sensations I've had with all the afore listed models can hardly suggest any positive outcome down the line. So, it's either that or CCFL now. Mine is from 2009-2010 and I like to think it's overall one of the best monitors ever made.

AlanSmith

Pudentane Welcome to the club, buddy.

smilem

Well led monitors use white leds and blue kind of leds. Then for ccfl there are various coatings. So the really proper way is to measure light spectrum of good bad display. Then measure flicker normally and using microsope at pixel level. Also test dithering same way. With this data one can come to why one monitor is good and another bad.

smilem

Did anyone tried ZEPTER hyperlight-eyewear? Material Fullerene C60 used in them is not scam.

https://www.davidpublisher.com/Public/uploads/Contribute/5b73831fd3ab8.pdf

https://scindeks-clanci.ceon.rs/data/pdf/0042-8450/2021/0042-84502104403J.pdf

https://pdfs.semanticscholar.org/3a29/e4232d080f8e6e6f009fc8743156613d4115.pdf

Normal price is ~180Eur anything more is a scam.

new-jdm

I am having the same LED sensitivity issue. A super old LCD monitor is fine, it appears. Did they even use LEDs back then? (2007 mfr date).

So I see there isn't really a solution in the modern day if you want to get something current?

EyeDiscomfortCertificate

new-jdm No, in 2007 they used CCFL, not LEDs.

karthi3219

Hi @Puppy Just like you, I have also found comforts in old CCFL monitors.

I am feeling better with old Dell U2410 CCFL monitor and able to use them long hours.

However, I have some doubts about aged CCFL bulbs that they might emit UV lights in higher dose.

Any thoughts on this?

Is it safe to use CCFL monitor considering they emit little UV radiations compared to latest LED backlights?

caoyirui

karthi3219

I bought a used Dell P2450h monitor that had been used for 25000 hours. And I can't look at it anymore, as the display looks yellow and makes my eye blurry after a while.

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