I bought the BenQ RL2455HM monitor today and I'm experiencing something very annoying. Whenever I scroll pages and move my mouse on white pages I can clearly see blueish shadows moving behind text and the cursor. The same blue shadows are also visible while gaming when there are objects in front of a white background. Is this normal or did I buy a defective monitor? I'm worried about it being defective since it was an on display monitor. Can someone shed some light on the subject?
Update :
As seen in the comments I've been looking into the BenQ XL2411Z. I've understood that the inverse ghosting issue is also present with that model when turning AMA on. I'm not into 3D gaming so I wouldn't be using that feature either. So the question is would there really be any reason to upgrade from the RL2455HM to the XL2411X. The only main feature change seems to be the increase in Hz going from 60Hz to 144Hz. What would the increase change realistically and would it even be that noticeable? The only other feature change I can see is that the stand gives more options for monitor movement. I wouldn't feel comfortable spending the extra 150 bucks to exchange my RL2455HM unless the difference is minimally noticeable.
Description sounds like overdrive artifacts. But it shouldn't be true because TN panels don't need overdrive in the first place.
Here's how strong overdrive artifacts look like:
That looks pretty much exactly like what I'm experiencing. I just googled what you said it looks like and I got mixed results. Some places said it's "strong overdrive artifacts" and some suggested "Coronas/Inverse Ghosting". But from those suggestions what do you think can be done about it? Could the monitor be defective?
"strong overdrive artifacts" and some suggested "Coronas/Inverse Ghosting".
Both mean the same thing.
If your monitor has the option to change overdrive mode or turn it off, the problem can be solved. Otherwise you can't do anything about it.
Also, it's not a defect, it's just really bad design. Proper overdrive doesn't create artifacts that are easy to see.
Interesting. I turned off BenQs AMA which was on by default when I got it and now I see no more blue shadows. Are there any downsides to not having AMA on? Is this an issue on BenQs higher end monitors such as the XL2411Z or just native to the RL2455HM I got?
Slower response time. You will likely not see a difference in that regard though. There's no point in having overdrive that makes artifacts that are more noticeable than ghosting that it tries to prevent.
Basically evil marketing people at BenQ said that the monitor has to to have a certain response time so that they could write that number on the box, and engineers had to enable extreme overdrive to match it. Turning it off will remove the ugly trails, and you can't really notice the difference in response time.
Is this an issue on BenQs higher end monitors such as the XL2411Z or just native to the RL2455HM I got?
You need to see reviews on sites like TFTCentral to see whether it's an issue or not for any particular model. If a model has no thorough reviews, don't buy it.
Did some testing with AMA off in games and now I do notice some regular ghosting/motion blur but it is quite minimal. The company I bought it from did give me the option to return the monitor and exchange it for another. So now I guess I'll have to start looking up reviews on the XL2411Z and maybe exchange it. Although that's an extra 120$ so I'm gonna have to be careful.
But thank you very much for the help and quick responses. =)
Definitely exchange it. I recommend you to get either a 60 Hz IPS panel (there will be more ghosting, but picture quality will be way better) or a 144 Hz TN panel. 60 Hz TN is just pointless.
Well an IPS wouldn't be that good for gaming. But yea i'll look into the higher Hz panels.
I myself have never used 144 Hz monitors, however, I haven't seen an owner of a 144 Hz panel say that they don't see a significant difference between 60 and 144 Hz.
You also need to be sure that your video card is capable of outputting 100+ FPS in the games you play.
The most optimal way to decide whether it's worth 150 bucks is just to play on that kind of monitor yourself.