June 12, 2017 at 5:43 pm #43452
Note that the article actually recommended changing the colour signal to Full Range RGB. But I don’t think that this is an issue, either way. Also note that the ICC profile included with the monitor is simply there to reset everything to factory default. It ensures that any other ICC profiles you’ve had (from other monitors) or software you’re running that might interfere with the GPU’s LUT is reset to default. Nothing more.
You may well have a sensitivity to the backlight of the monitor and unfortunately you can’t do much about that. Although you should also give it time, because you may just need to get used to it. You mention eye strain getting worse during the night, which is qutie natural as your eyes would be more fatigued. But it could also suggest that your lighting conditions are not actually optimal. Saying that you “practice all the ergonomic guidelines” is really very general. What brightness do you have the monitor set to and what lighting do you have in the room – anything striking the screen surface?June 12, 2017 at 6:46 pm #43453
PCM2, are the current implementations of white LED backlighting capable of reproducing the same color spectrum and levels as RGB backlighting implementations? I ask because I suspect that the cause of so many eye problems to do with displays is a result of issues to do with white LED backlighting, including the bump in the blue spectrum and pwm. Of course, we already know something about this, but… Whatever changes happen to a person’s eyes as a result of white LED backlighting (resulting in severe fatigue) it seems that in many cases, once that change happens to a person’s eyes we are very susceptible to eye fatigue.
In my own case, I never experienced eye fatigue before daily use of a display that implements white LED backlighting. Over the years I have used a number of CRT’s and CCFL backlit displays. At most, I have gotten red eyes from long use of a CRT, but never eyes which feel fatigued (achy and slow). After a while of using daily an LED backlit display, I experienced a bout of pretty severe eye fatigue. And I experienced it a couple of more times after that. Then a took a bout of months away from long computer use, other than a few minutes here and there throughout the day, and my eyes felt so much better throughout that time.
But now, any time that I return to using a computer for hours (particularly for reading) I feel eye fatigue coming on. I am pretty certain that my eyes have been damaged and so now I am very susceptible to eye fatigue. And it seems to not matter which display I use, because they are all using white LED backlighting these days. But my phone uses an OLED display, and at the worst, I experience pretty mild fatigue when reading from it for some hours. I also experimented with using a phone that has an IPS display (LED backlit) display, and it immediately made my eyes feel fatigued.
Also, what I have read of my eye symptoms matches the symptoms of diabetics who experience eye problems to do with light. But I am not diabetic, I eat healthy, I get plenty of exercise daily, and I never experienced such eye problems before long use of a display which used white LED backlighting.
I suspect that at most, the coating of a display and the pixel density of a display play a minor role in eye fatigue in comparison to the backlighting implementation.June 12, 2017 at 7:06 pm #43454
By ‘RGB’ backlight implementations, are you actually referring to GB-LED and RB-LED? Distinct ‘Red, ‘Green’ and ‘Blue’ diodes have not been used for monitor backlights for a very long time, since a few very expensive and flawed models such as the Samsung XL20. ‘WLED’ is quite a broad term. All of the information regarding this can be found in our frequently updated article on the topic – https://pcmonitors.info/articles/the-evolution-of-led-backlights/.
It should be noted that all current implementations, even those using Quantum Dot films and indeed GB-LED and RB-LED solutions still use blue diodes. But the spectrum is far more balanced on these and also some of the newer enhanced phosphor designs. Even if you aren’t actively measuring the spectrum, you can tell which designs have this more balanced spectrum by considering their colour gamut (the wider the better as that indicates more red and green energy rather than just a spike of blue).
I definitely think, given this, it would be worth trying displays with a wider colour gamut. It doesn’t really matter how that is achieved and as above there will still be blue diodes in the equation somewhere. But I agree that this can be a major cause of viewing comfort issues in some individuals.June 12, 2017 at 8:17 pm #43455
By RGB backlight, I do mean old designs. I think that no one is using RGB backlighting because of the expense of it (what I have read).
So if trying the idea of using a display which has a wide color gamut, which monitors will have also be PWM free (just to make sure), as in DC controlled backlighting? Also, do any monitors have all of these things?:
– Wide color gamut
– PWM free
– Builtin control for amount of blue light (reading mode)
– Builtin automatic brightness adjustment using a sensor (this would be a nicety, not a necessity).
– Same or slightly larger viewed font size as a 17″ laptop display at 1080p. (Is there a term for the ratio of diagonal panel size to ppi?)
– Good anti-glare coating
Thanks PCM2.June 12, 2017 at 8:40 pm #43456
It was about far more than just expense, to quote the article: “There were simply too many drawbacks; cost, size, weight, differential degradation of the LEDs (leading to colour imbalances across the screen over time) and relatively poor energy efficiency.”
I’m not sure why you’re searching for a term for the ratio of diagonal panel size to PPI. PPI (Pixels Per Inch) or pixel density is really a standalone consideration when it comes to font size. Assuming you’re not using any scaling on the laptop (and you need to be mindful of viewing distance as well, which is typically closer on a laptop screen) you’re looking at 129.58 PPI. The closest you’ll get to that is a 23.8″ 2560 x 1440 (WQHD) model. But I suspect you should be open to a slightly lower pixel density and would probably find 25″ 2560 x 1440 (WQHD) to be comfortable. And for that matter 27″ WQHD which opens up a much broader range of models.
Given that, you might consider the Dell UP2516D. Although this has now been discontinued and is soon to be replaced. Did you actually have a budget and overall screen size in mind?
Oh and the vast majority of monitors are flicker-free and use DC dimming these days, it’s only a small minority of new models that don’t.June 13, 2017 at 9:33 am #43466
There is no direct light striking the surface. I set brightness to 20%-30% depending the lightening conditions. Also, I use reading mode with 70% blue light is filtered. The distance between my eyes and monitor is around 50 to 60cm.
Last night I had a chance to use an old CRT monitor. I can say that I wasn’t comfortable at all.
Recently, I was wondering that maybe I have a vitamin deficiency like vitamin A or D. So, changing monitors hasn’t help me so far.June 13, 2017 at 2:41 pm #43472
Thanks PCM2 .
under recommended section only one 24 inch Samsung model was listed and kindly recommend something else with similar feature of the Samsung model you have mentioned . i hate the stand and the look of monitor for some reason .June 13, 2017 at 2:53 pm #43473
The Dell U2417H is also excellent, although the price and availability is not. The older U2414H is also a solid choice, even today, whilst availability and price is more agreeable. If you’re open to glossy screens then consider the HP 25er and Dell S2415H as well – https://forum.pcmonitors.info/topic/hp-25er-vs-dell-s2415h/.June 13, 2017 at 4:36 pm #43474
PCM2 , is there is a massive difference between P2417H vs U2417H. the ultrasharp model is around 150$ extra is it worth the premium .June 13, 2017 at 5:45 pm #43475
The U2417H uses different panel(s), has a greater array of ports, more accurate factory calibration and thinner bezels. If none of that really matters to you (and in terms of viewing comfort, it doesn’t really) then the P2417H would certainly be worth considering instead. Especially if that is the sort of price difference you’re looking at.June 14, 2017 at 11:45 am #43478
Thank you PCM2 . when you recommended Samsung S24F350FH i like the monitor but the stand and the lack of pivot mode was big turn off for me and i was about to buy the dell p2417h but suddenly Samsung have this bad boy S24H850 , so iam confused right now whether to buy dell p2417h or wait for S24H850 . when it will launch globally . is it worth the wait , or i just buy the dell p2417h now .June 14, 2017 at 2:04 pm #43479
All current information on the S24H850 can be found in the news piece. It will be nowhere near the price of either the P2417H or S24F350FH, it will be significantly more expensive. I also wouldn’t expect it to arrive until July – August at the earliest. I completely understand your feelings towards the S24F350FH and its stand, in which case the P2417H absolutely makes sense. I think it’s an excellent monitor for the price, it’s just a shame Dell didn’t manage to get a sample to us for a full review.August 5, 2017 at 4:23 pm #44302
I’m a programmer and I would like your help to buy a new monitor for work at home.
I would like to buy a 27 inch Full hd monitor? do you reccomend it? is full hd enough for a 27 inch?
is it better IPS or VA? things like Flicker Free technology and Low Blue light emission worth it?
Thank you very much.August 5, 2017 at 4:23 pm #44304August 5, 2017 at 4:27 pm #44307
I’ve merged your thread with this one as it is full of recommendations for comfortable monitors. The attributes that make a monitor suitable for comfortable general-purpose use applies equally to programming as well. I would recommend at least taking a look at the last few pages of this thread for some of the more recent recommendations. The recommendations section is also worth a look. Some points to bear mind:
– All models featured in the ‘recommendations section’ are flicker-free. That’s an important box to tick for reducing eye fatigue.
– Information about the screen surface use is included, in more detail if it’s a model we’ve reviewed. If we have, you’ll find a link to our review there as well.
– ‘Low Blue Light’ settings are useful, but can be achieved by alternative means if the monitor doesn’t specifically mention this feature – https://forum.pcmonitors.info/topic/low-blue-light/.
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