By Boredgunner: What about OLED screens that look like they're powered off on a black screen?
Well, I can tell you it's coming. I do some work for Samsung so have access to their R & D. A lot of resources are being put into this as the first company to produce a monitor (or even TV) size screen will rake in the cash.
For obvious reasons I can't give away any thing that hasn't been publicly announced. I could get into a lot, really a lot of trouble!
What I can say is that the problem is Yield. When "pressing" the huge plates that screens are cut off, to put it crudely, it's only viable for small smartphone size screens. It's difficult to find say a 20" x 25" patch without defects.
The vast majority of what is produced is rubbish. The focus of OLED R & D is too vastly improve the production methods in order for it to be viable for mass production. Currently it would cost the maker
many 1,000 dollars to get maybe just ONE flawless patch large enough to produce a monitor. Simply not practical. The tech itself is well understood, it's how to make screens without the vast majority of each production
run useless (due to defects).
It will be years, but it will happen. OLED is so good it would render other technologies obsolete. Such as IPS, TN, Plasma etc would just not be able to match the pure black of an OLED. As you know the black is like the
clean canvas on which images are produced, that's why black is the most important single factor of the many. It affects everything. OLED is the only tech known that can produce real 100% pure black when switched on. The colour gamut and accuracy is out of this world. 5 years maybe? Probably more. A break through in production is needed. Tweaking the current methods does help, but no where near enough.
For now I am very happy with my ACER XB270HU 27" HeHe.