32' 4K Monitor Backlight Shadow Issue and Dead Pixels?

Samsung 32' Viewfinity UJ59 4K Monitor.

Notice the black shadow spots on the upper left side and the middle of the monitor. I can still use the monitor fine even in the middle of the screen. However, the top left area with the shadow makes it hard to look at it. I read this is a backlight issue? I'm not sure exactly how this happened but I might have pressed on that area too hard which caused this when moving the monitor.

Do I have any dead Pixels on the monitor?

I bought this monitor for around close to $500 USD or so. I paid a lot more than usual because this is outside the US.

How much is this monitor worth if I sell it at this condition? For reference, it would cost about $435 USD at the moment here brand new. Because of this condition, is it worth about $50-$150? I know in the US, this wouldn't even be worth more than $50 maybe? The first picture is how it looks when I lock the computer so you don't really notice any shadows. If I'm visiting websites with a nonwhite background, it's definitely usable. I'm looking to sell it and am curious how much it's worth.

Looks like you have an LED, or several LEDs out. Since it isn't a black bar, I suspect there isn't a power issue as the rest of the strip is lit. To have it serviced will likely get closed to the replacement cost, and it's a risky repair taking the panel apart and unsticking the strip, etc. It is possible it was physical, but unlikely

A Guy