Originally Posted by Richard Paul
The technological problems for recording 8K video are likely to be solved within 10 years but in my opinion the main issue will be display size.
Real 8K or 9K cameras will come in about two years. Not the "pixelshift 8K" Sony is claiming F65 will do next tear. But real 33MP or 65MP. Canon showed 50MP CMOS sensor in 2007 and 120MP CMOS sensor in 2011, so the sensors are there already (probably "hiding" in some drones).
RED has 9K camera in the works, and "some amazing technology that will take some time to get ready" they say.
It is a matter of camera size, compression codecs and transport of 8K over satellite and terrestrial and fiber. NHK already proved it is possible. With HEVC and some time, everything will be easier.
In the BBC video they mention flexible OLED displays will be used in the future but that is something that might take a very long time before it becomes affordable in very large sizes (120" and larger).
Samsung has made those in small scale and claim they will release flexible OLED next year. The day OLED printing problems is solved, possibility for large flexible screens will be easy. Then we can have 120" screens and 4 times 8K resolution.
If that takes 10 years it will be launched at the same time 8K broadcast starts to be regular in some countries.
In the mean time we can be content with 85" 8K screens like the one Sharp has made several of. And some 4K satellite channels, which Sony with ASTRA tested in September with 50Mb/s, where they aim at 20Mb/s next year with HEVC.
The NHK has done incredible research work on UHDTV but they also promoted analog HDTV so they have made some poor decisions in the past.
I believe that stranded because it showed that it was impossible to mass-produce CRT HDTVs. Something to do with unsteady pictures caused by sensitivity to fluctuating currents and earth magnetism.
Even the explanation the NHK has for not using 4K UHDTV is that they don't want to go through two transitions which sounds like an excuse for a decision that has already been made. I think it is possible that even 10 years from now the only broadcaster promoting 8K UHDTV will be the NHK.
It is a very proper and rational decision, surprisingly so, and very much backed by the EBU. To make all broadcasters invest Billions in new equipment for 4K broadcast when they are only years from a 8K solution is not very smart.
That would mean they either go for 4K and put 8K on hold for 20 years or go directly to 8K.
It is 8K that visually will make a easy sell-able difference between HD and 8K. 4K will be just a soon forgotten stepping stone.
If we talk 2030 (the 10 years it takes from introduction of 8K broadcast to mainstream) and huge OLED printed video walls, the resolution of minimum 8K will be needed.