Galaxy A34 text smearing with low brightness on dark background

[cool2]

When I turn the brightness to the lowest setting, I can see things such as text smearing and turning purple leaving a tail when on a dark background. For example YouTube in dark mode, the white title text smears when scrolling leaving a purple trail. Turning the extra dim mode makes it even worse. The smearing completely disappears when setting the screen brightness higher to about around like 15% - 20% and above. Is this a faulty screen or is that normal? Here's a video showing the issue, look closer at the appearance text and the text at the top, it turns purple-ish when moving. Thanks.

https://imgur.com/iwXAwDz

 

[VidJunky]

Welcome to Android Central forums.

Don't you have to go into Developer Options to go lower than 15%? That is getting into dangerous territory because you could go too dark to see anything, and end up locked out because you can't find items on your screen so first let me warn that you do this at your own risk.

What you show in your short video is normal. It happens even when you can't see it happening. It is just a slight lag in the pixel turning off or changing color. Normally we don't see these momentary ghost images because the phone is bright and changes are more dramatic. You proved this yourself by testing at normal brightness.