Originally Posted by mttpalmer
saw a lot of banding and blockiness in dark backgrounds. The OLEDs show everything, good detail and bad.
The more contentious question is whether these OLEDs should be correcting for that banding and blockiness in the content. Some claim that other brands (Sony) already do that and this is evidence that LG has dropped the ball there.
The only problem I have is that the OLED makes good content look spectacular, and that raises your expectations and exacerbates how bad poor content appears to you. I think that's a good problem to have...
Banding, AKA poor gradient reproduction, is almost always due to the image either being 8 bit when sent to you, or 8 bit at some point in its path. 8 bit grads don't do well at the luminance or chroma transition points - 10 bits is a much nicer transition.
Blockiness is due to the immense amount of compression being applied to the image somewhere (or probably everywhere) in the signal chain.
Neither is the fault of the LG. No balls have been dropped.
To 'fix' those issues, the available options of 'noise reduction' and 'blending' both make the image smeared and soft, as well as affecting the motion of objects on the screen. If Sony is doing that, that's currently the only way to achieve it, and no thank you. Perhaps they are also dynamically changing the refresh rate to compensate for that processing, and that (for me) just makes things worse. Samsung has introduced some of that in their low end sets to compensate for some spectacularly bad panels and circuitry. On the recommendations from rtings.com I bought a 40" UHD one at Christmas for $279 and returned it a few weeks later. It was beyond awful, far worse than the 8 year old Toshiba it replaced. I won't be trusting rtings.com ratings again.
We've all been watching some crappy images from cablecos, satellite, and streaming services, and the LG is faithfully reproducing all of it. It's like not renewing your reading glasses prescription for a decade, then getting new glasses and noticing that you and your spouse have both grown older looking.
There are some adjustments in the LG to compensate somewhat for the problems, but I leave them off because they introduce issues I find more annoying than the grads and blockiness.