Originally Posted by Andreas21
I am getting tired of people questioning what I see everytime I say something on this forum.
Sorry, my intent wasn't to pester you. It's just that, if I understand screen technology correctly (and I'm pretty sure I do) then what you described is improbable, if not impossible. Since this is AVScience, many of us are here to understand how technology works, so an extraordinary claim about a screen material producing more contrast than a white screen is going to stick out to anyone who knows something about how screens work.
You may well have percieved that the DNP image looks more contrasty and punchy, but the issue is to what can we ascribe that perception? It's been a very common theme that people looking at gray screens, especially gray screens with gain, that they percieve a lower black floor and/or higher contrast, and they attribute that to some inherent contrast enhancing characteristic of the screen, rather to how the screen is simply combating room reflections better than a white screen. Surely you can't fault us for wanting to understand these things, and if a screen material actually COULD increase the contrast of a projected image I sure as heck would want to be aware of it.
Re-visiting the DNP web site, all their technical discussion of their screens revolves around maintaining contrast in situations with ambient light (or reflective rooms) - pretty standard for any gray screen with gain; I see nothing making extraordinary claims of the screen itself increasing image contrast, as if it would produce a higher contrast image than a neutral gain white screen in controlled lighting conditions, which is what you seemed to be suggesting.
So it's just that, unless there is something revolutionary going on with the DNP screen, not even mentioned on their own web site, then writing a claim like this "it gives you alot deeper black level and almost the same whitelevel as a 1.0 gain screen and it gives you a much more dynamic picture.".
.., sorry to say, quite misleading for people who don't know any better. And a claim like that is going to be noticed on a forum of AV-technology enthusiasts. It's not a moral failing I'm pointing out on your part; we just try to make sure we understand how AV technology actually works around here.