Originally Posted by Matt014
I recently bought an Acer XB271HK monitor. I noticed after using it for a while that the left side of the screen is slightly brighter than the right. Here is a picture of the issue. Imgur: The most awesome images on the Internet
Is this normal for monitors or some sort of defect?
Normal. Unfortunate that you have a left/right variance, but still normal. It's called panel uniformity. The issue is on displays the backlight is around the edge of the display, so there is a challenge in making the display brightness uniform top to bottom and left to right. Most displays are actually pretty non-uniform, more so than people realise. It just so happens the human eye isn't actually particularly great at noticing different brightness levels between 0 and 10%. 10 to 20% and it's visible but only if you look for it, not super distracting.
You are only going to get a really nice evenly backlit uniform LCD display is you pay major
money for a reference grade monitor. I am talking $1000+ from the likes of Eizo, NEC etc.
An example of an average monitors brightness uniformity.