Originally Posted by Jodiuh
And yeah, the zeroflicker is def the reason to get this.
PWM flicker can be the source of eyestrain, however PWM artifacts can also be bothersome too (this can actually be a bigger issue for other people):
Pursuit camera photograph of PWM artifacts:
(From LCD Motion Artifacts 101
If your monitor has "PWM dimming", you can see exactly the same thing as the above photo.
1. Go to www.testufo.com/ghosting
2. Adjust Brightness down to 0%
3. You can visually see the same artifact as in the above photo.
Some of us have eyestrain from motion artifacts/blur/PWM artifact, instead of eyestrain from the PWM flicker. Going either PWM-free or going LightBoost fixes it for me. Our eye focussing muscles gets lots of strain trying to focus on motion blur/artifacts when the display forces motion blur onto our eyes! Also for people like CallSignVega too (some of us don't get CRT eyestrain nor LightBoost eyestrain). LightBoost is a special kind of mption-blur-eliminating refresh-synchronized one-strobe-per-refresh PWM. For that reason, LightBoost can increase eyestrain for some people (PWM flicker sensitive people), while LightBoost can decrease eyestrain for other people (PWM artifact sensitive people).
Fortunately, you got plenty of choice on the XL2420TE.
-- Got PWM flicker eyestrain? OR
-- Got PWM artifact eyestrain? OR
-- Got excess brightness eyestrain? OR
-- Got motion blur eyestrain?
The XL2420TE options can easily fix any of the above (with and without LightBoost, your choice!).Edited by mdrejhon - 10/8/13 at 6:18pm