L502x screen has very milky blacks (RBG 1080p, AUO17ED v7?)

The screen on my laptop has very good colours as I expected (100% colour gamut). The problem I have with it is the very milky blacks (It is also visible during boot up/bios). I Eventually decided to get the screen replaced by warranty, but the replacement had exactly the same problem. This makes me think it might a driver or hardware issue causing this. Or I've had 2 displays with extremely bad light bleed that affects the entire display twice in a row.

In normal lighting I have to set the brightness to 4 bars (exactly a quarter) of brightness for the blacks to be bearable, unfortunately this also makes the screen too dim. On full brightness the blacks looks like a bright grey in any lighting condition. Watching any media on this screen with a dark scene is hard to see and doesn't look good. It is impossible to see anything with a very dark scene and yes, I've changed the dynamic range to 16-235. The milky blacks must also be negatively affecting the contrast ratio.

As I wrote above, the milky blacks is also visible during the boot up and bios screen. So it has nothing to do with colour profiles.

I know a friend with exactly the same laptop and the colours on his screen looks identical. But the blacks are alot darker and deeper, which means that this problem is not normal.

My guess is the problem is being caused by either;
1. Dell no longer stock the AUO17ED v7 display and have given me an inferior display with vastly worse blacks.
2. I've had 2 displays in a row with extremely bad light bleed that affects the entire screen.
3. There is some driver issue causing the blacks to appear much lighter than it should.
4. The same as the above but a hardware issue.

For the Dell XPS L501/2X I've never heard of anyone else having a problem like this before.

Does anyone have any ideas what could be causing this? Could updating the Intel drivers fix this? Or is it just the display itself?


Photos below;

The blacks looks alot brighter in person than they do in the photos.

Fully black screen
View attachment 87866


Diagnostic screen, before Windows 7 boots
View attachment 87867

A dark video scene
View attachment 87868