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Any monitors flicker free at all brightness levels? Eye strain concern

 
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post #1 of 5 (permalink) Old 01-17-2019, 03:30 PM - Thread Starter
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Any monitors flicker free at all brightness levels? Eye strain concern

Does anyone have some pointers about deciphering monitor specs or monitors they'd like to recommend? Any help is appreciated.

I've been using a laptop (LED LCD screen according to specs), but I'm thinking of springing for a 24-25" monitor mainly to use for reading text and web browsing. I use it at a low brightness setting with Flux on, but I just learned about PWM and the laptop has it. Perhaps the brightness level I'm using it at is making things worse, idk I always just thought that eyestrain was inevitable, but maybe a larger monitor without PWM would help. I'm interested in the eye care ranges of Asus and Benq, but they each have so many models, with some of them discontinued, all of them with some kind flicker-free label, and none of them with release dates conveniently written anywhere, that I'm just more confused about the differences among the ones still in stock. I'm just googling the model names one by one, and I'm only a quarter way finished with Asus even after adding the flicker free filter in search.

What I'd really like to avoid is the hybrid backlight dimming (models which are flicker free for part of their brightness adjustment range, but do use some form of PWM for other parts of the adjustment range) mentioned in the tft flicker free database. That article hasn't been updated since 2016, so I'm not even sure if that's still a problem. I see that both Asus and Benq eye care ranges have some sort of TUV Rheinland certification, but I'm not sure if that covers all brightness levels. I also see something about DCM direct current modulation or WLED flicker free. What do these things mean? Is there any place online to do a filter search or will I need to google one by one? Is VA or IPS better for reading?


The eyecare ranges are saying that it provides flicker free by automatically adjusting brightness. I tend to use it at very low brightness though, so how is that affected? Will it be flicker free even at low brightness?

Last edited by read; 01-17-2019 at 03:49 PM.
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post #2 of 5 (permalink) Old 01-17-2019, 07:51 PM
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Almost glossy IPS or VA with no PWM dimming and perfect neutral sharpness is probably easiest to read and what at least I want. Sadly such monitors are rare that have all these features, finding a neutral sharp one should be a must for any monitor and is hard with 100Hz+ monitors.
You could check Q3279VWF VA model which has fairly glossy surface but I don't know if it's neutral sharp and PWM free, it should be, check review. I have the IPS D8 variant of it which has matte surface and is perfect neutral sharpness, no blurry text!

Flicker free is a marketing term used by monitor makers to say that monitor should be PWM free. Check specific monitor reviews to find out about PWM dimming. Sharpness... that's tricky, at best browse user experiences and reported issues by users, it's super easy to check and see when you have the monitor, lagom.nl sharpness.
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post #3 of 5 (permalink) Old 01-17-2019, 08:52 PM
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http://www.tftcentral.co.uk/


This site does amazing monitor reviews, you can find loads of flicker-free monitors there as well as recommended monitors.

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post #4 of 5 (permalink) Old 01-17-2019, 08:57 PM
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Also consider adding bias lighting (or so i've heard). Haven't gotten around fixing it myself, but..

These seem to be recommended!
https://www.biaslighting.com/

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post #5 of 5 (permalink) Old 01-19-2019, 09:59 AM
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I use 93CRI+ warm white, but you can get anything from 2700-9000K, warm 2700, neutral 4000, neutral 5000, day white 6500, cold white maybe 9000, with and without glue which again does shift the temperature.
These are on eBay for around $26 for 5m, 12V, not some weak 5V, shipped. Way cheaper than what you can usually buy locally as those with similar quality and rendering often cost $100+ not shipped.

Sure if you want a pro coloring LEDs than the 99CRI they offer on biaslighting are probably good. If you're at home... having 6500K lights is way too cool white for comfort, blue light galore.

Having good lights in room and behind monitor does help with eye strain. Always put some lamp behind monitor. Or make yourself LED strips attached to a aluminum heatsink profile, don't just glue them to plastic they will burn and degrade, LED strips need cooling especially if you run them at full 12V when they are designed for 12V.
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