Originally Posted by johnBlanker
What is banding?
I've just tuned into oled tvs. I have a 4ish year old sony r550 lcd and absolutely have the ghosting and off angle picture dropout.
I've heard that oleds don't have these problems at all. Would you guys recommend forking over the $ for one of these in 2018 or some other full array local dimming lcd?
What benefit would hdmi2.1 bring if Im not interested in atmos?
Banding is a problem with the current OLED manfacturing process that makes vertical bands have slightly different brightness when showing very dark scenes. It varies from panel to panel. Some are pretty good, some are pretty awful. Plenty of pictures in the threads about it.
As for the other things you mentioned, yes OLED does not have those problem. A few panels seem to have a slight change in tint (supposedly the anti reflection coating is likely the cause) when changing the viewing angle, but it is not very much and a lot of people either don't have it or don't notice it. It is nothing like the changes you see on an LCD though. You might get a slight yellow or pink tint to a bright white image of at an angle, although I have seen a couple of people that were seeing tint changes in grass watching soccer games, but that does not seem to be a common case.
HDMI 2.1 has nothing to do with atmos. atmos works fine already with HDMI 2.0.
The features HDMI 2.1 offers are:
More bandwidth (48Gbps rather than 18 allowing 8k or 10k video, as well as video stream compression to fit even more data through).
eARC (Full uncompressed audio sent from the TV to an AVR or soundbar rather than being limited to dolby digital or DTS compressed audio with ARC).
VRR (Variable refresh rate, allowing game consoles to send the next frame when it is done rendering it, rather than being locked to 60Hz, so if the game can render 50 frames per second, you get that, rather than getting effectively 30 frames per second due to having missed the 60Hz update time and having to wait for the next one every frame). So far the Xbox One X is the only device with support for it. No screens do it that I have seen (unless some computer monitors support it since it is related to AMD's version of variable refresh rate).
Dynamic HDR (Well we already have dolby vision doing that with HDMI 2.0, but I think this is HDR10+ or something like that).
Of course a device only has to support one of those features to claim to be HDMI 2.1 compatible.