Originally Posted by Murlocke
Brightness has nothing to do with contrast ratio, burning out the viewers retinas? I'm really not sure what you are trying to imply but you clearly do not understand what contrast ratio means. No offense, but it seem's like i'm not the one that needs the reality check.
I do understand what contrast is, and yes brightness affects it on displays. Just like the marketing folks do to sell panels - you too can crank a display to it's maximum brightness and obtain absurd contrast ratios. Unfortunately it's not pleasant to look at (a spot light and the dead of night give great contrast ratio's, too...) and often skews more important things like color.
However, I will admit I don't know much about TV's in particular or what's considered 'normal' light output (giving a reference point for contrast measurement).
...but this 4K panel is not design to be a television, it's a monitor
. When properly calibrated, essentially all of the currently available high-end IPS monitors have less than 1000:1 contrast ratios.
There are even some very highly rated monitors under 600:1, the NEC PA241W in particular.
Contrast ratio isn't the end-all of picture quality. It's a very small portion of it.