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Hey,
So, I have tried quite a few different monitors in a quest to replace my LG 32GK850-G and I’m having eye strain issues with all of them. I’m currently using an HP X34 and it’s the first one that hasn’t immediately hurt my eyes. All of the monitors I’ve used thus far have been calibrated to gamma 2.2 and 120 cdm2 using an i1 Pro 2.
I haven’t quite narrowed down what’s causing the eye strain, but one thing that I’ve noticed is that the white point on all these monitors appears to be vastly different. This HP I’m using now appears to have much softer, almost gray white tones. The Omen 34C I was using before it had whites that were so intense, it looked like someone was shining an LED flashlight into my eyes. I currently have these monitors both calibrated and sitting side by side. The average glow or luminance between the panels appears even from the side, but dead on, white is far more intense on the Omen.
I can’t figure out what’s causing this, but I’m pretty sure this is the source of my eye strain. White is painfully intense on a lot of these new monitors, but I can’t figure out what exactly the issue is or why it’s so much more intense on certain monitors. My spectrophotometer is telling me that they’re the exact same brightness, but subjectively they definitely are not. I’ve tried tweaking the settings on the Omen to bring it inline with the HP, but it compromises the image quality in the process.
Does anyone have any insight on whats causing this? I know this post may come across as a bit dumb, but any insight would be greatly appreciated. I’ve been driving myself insane trying to figure this out.
Maybe it has something to do with the different panel technlogy and vastly different contrast ratios? Try specifying a black point at 0.12 cd/m^2 during the calibration on your Omen and see if your eyes feel any different. That said, 120 cd/m^2 is a lot in a pitch black room. You should use a bias light.
One last thing: are you sure it doesn’t go in HDR mode and shooting up the brightness to >400 cd/m2?
I’ll try messing with the black point, but this issue is really confusing me overall. I don’t get how both displays are calibrated to 120cdm2 and 100% white is grayish on one and neon on the other. My phone and TV have contrast ratios that are far, far wider than these monitors and yet, white has the same grayish tone on them. They’re also very comfortable to my eyes.
I get that different panels can look different with the same white point due to backlight construction(and other factors), but would the same apply to brightness? I mean brightness should be a black and white measurement of how much light is going through the panel, right?
I’ll try messing with the black point, but this issue is really confusing me overall. I don’t get how both displays are calibrated to 120cdm2 and 100% white is grayish on one and neon on the other. My phone and TV have contrast ratios that are far, far wider than these monitors and yet, white has the same grayish tone on them. They’re also very comfortable to my eyes.
I get that different panels can look different with the same white point due to backlight construction(and other factors), but would the same apply to brightness? I mean brightness should be a black and white measurement of how much light is going through the panel, right?
One last thing: are you sure it doesn’t go in HDR mode and shooting up the brightness to >400 cd/m2?
+1
Let’s see that you see neon white on “blank page” on Chome/Firefox or in MS Paint or wherever you see it. And on the other you do not see it.
Use ArgyllCMS specplot (even from a laptop, from a different computer) and measure that white patch you see. compare nits. Also plot SPD to see backlight type.
So, I’m still trying to figure out the how to install ArgyllCMS specplot and plot SPD, but in the meantime here’s a shot from a camera that shows the exact opposite of what I’m seeing. The camera sees the X34 as cooler and brighter and the Omen as yellow and dimmer. Exposure and shutterspeed were locked in both images. ????
Sorry, I did this with my phone so they aren’t perfectly even.
Vincent, I downloaded the ArgyllCMS executables and it seems very complicated. The documentation is 71 pages long and I’m not even sure how to get it installed. Is there a simple tutorial somewhere on how to get this up and running?
Open commandline, go to ArgyllCMS bin folder,
“spotread.exe -S -H” and then place spectrophotometer on a white patch in MS paint (It may ask you for device auto calibration with ceramic tile before measurement)
No need to download ArgyllCMS executables… DisplayCAL uses them so you had downloaded them before.-S plot SPD
-H use 3nm mode
maybe I missed some other params but I cannot use my spectro right now.(this assumes that you had instaled Argyll USB driver previously while using your spectrophotometer in DisplayCAL )
Files seems to be wrong, maybe you measured “refecting” display surface instead of emmisive mode.
Maybe I missed and additional param to use it in emisive mode (- e or -eb param)Vincent, you are some kind of mad scientist with monitors…
Thanks a lot for the help with this. I had no idea Argyll could do these spectral emission graphs. I thought the review websites were using some exotic software to do this.
