Acer H226HQL bid -- no PWM?
Answers
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I'll repost my question to this page so that it was easy to understand what I am talking about
Acer-Tommy wrote:The PWM is for the signal but the backlight does not use PWM. The backlight uses 5V DC.
Does H226HQL have PWM in backlight dimming/regulation? No
The thing is some monitors use "hybrid solution" for brightness regulation:
Eizo EV2336W: "PWM free down to 20% brightness, but used at 200Hz below"
Dell U2413: "No PWM down to 20% brightness, but used 19 - 0% at high 8750Hz"What about H226HQL bmid? Is its backlight PWM free for 0-100% brightness?
I would like to get an answer because I have severe myopia and I want to make sure this monitor is as safe for the eyes as possible
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Phen1, I don't see where your uncertainty lies. Assuming the Acer engineering people are telling the truth (and why would they not?) there is no PWM used in backlight dimming/regulation.
I've been using the monitor. I too have a visual impairment that requires me to be close to the screen. I have to use it at low single digit brightness -- I think almost any sensible person would. It does seem to be a little easier on the eyes than my previous LCD monitor. Such things are hard to tell.
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This monitor has a glossy screen. I do wonder what the material is. Not likely to be glass. Is it plexiglass? Polycarbonate? Some other plastic?
This is not just curiosity. I can easily imagine an arrangement where that information might be important.
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Since I own one, I can say for sure that it is plastic of some sort. I know of no way for me to determine the type of plastic, but I do worry a bit that one day it might need to be cleaned and some plastics are extremely easy to scratch even with a very soft cloth. So far I've been using air to clean it since I only needed to get rid of dust.
And using the online chat/help thing here is of no value because they told me it was glass, which it is not.
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