I have the same issue with the change in apparent brightness when moving my head a few inches. It's most obvious on dark areas, and I'm a bit disappointed with the black level too. If I use any of the calibration screens the black doesn't get any deeper below about 50% brightness. The backlighting is pretty even - it's just that a blank screen is mid grey rather than black.
I'm sure it isn't a TN panel because the colours don't collapse completely looking from below, but it is a bit less impressive than I'd hoped.
Alan
I'm sure it isn't a TN panel because the colours don't collapse completely looking from below, but it is a bit less impressive than I'd hoped.
Alan