Backlight issue on sides of BM320 monitor screen

Pokernut
Pokernut Member Posts: 1 New User

I have 2 Acer BM320 monitors that I inherited from a family member. One monitor is absolutely fine but the other one has some backlight issues which is really distracting. It seems to be more than just a standard backlight bleed / halo effect that is often seen with monitor screens around the edges and corners.

I've attached a video to show what it looks like. As you can see, it's only on the side edges. The left side edge shows light leakage starting from the left bottom corner leading up to just over the half-way mark towards the top left corner of the screen. The right side edge shows light leakage starting from the right bottom corner reaching up to almost the the top right corner of the screen.

When the screen is all black, it is less noticeable because there is less light being emitted from the back light panel, whereas when the screen is white (e.g. working full screen with office applications or web browsing, it is very noticeable as shown in the video).

What is the cause of this issue and what can be done to fix or minimise it?