Originally Posted by WilliamG
Anyone reading, DO NOT DO THIS. This utterly murders any blacks you used to enjoy on OLED. OLEDs actually have a very limited brightness range so as to not elevate those blacks.
Here's my opinion on black level and OLED after extensive self observation of content:
I agree with the boost of Brightness 55 on SDR/HDR and personally I use 62 with Dolby Vision.
Here is the logic I've determined:
Outside of OLED, anytime you've heard about the "best possible PQ", such as with Plasma and past high end LED TVs (such as the Sony A and B series, around 2013/2014) these TVs performed with consistent solid black level performances.. but can't do 0% blacks like OLED.
OLED's ability to produce 0% black is a technical capability inherit to the TV tech itself, not in any way a trait of the content that's being made to display on it. Some cars can go up to 180mph, a capability most people will never utilize. Meaning, because OLED can do this amazing 0% blacks, doesn't mean content needs to utilize that 0% black capability (for the best low dynamic black level performance).
With OLED, initially in years past between 2013-2015, OLED's appeal was the marvel at its ability to produce 0% blacks and how potent the color volume was. But in 2013-2015, in comparison with Plasma and even LED was always a low black level "uniformity" issue with PQ.
In 2016, LG came close to hitting the mark with meeting low black level capability targets.
In 2017 with the LG 7 series, LG for the first time (in my opinion) hit the mark on low black level performance uniformity ability. So now what this means is you can use a LG 7+ OLED in 1 of 2 ways:
1) You can go full OLED look with keeping Brightness at 50 to produce the "stunning" 0% black level performance, at the cost of low level black performance operates at a threshold too low for the eye to discern (aka "crushed blacks), or
2) You can let the LG 7+ OLED technical capability deliver on par with Plasma and best LEDs with boosting Brightness to 55-62. The advantage of doing this is with a 2017 OLED you can have a PQ on par with the best Plasma and LED low black level performance, with the agreement to give up 0% blacks on aspect ratio bars etc (just as Plasma and the best LEDs do also) but gain the advantage over those older TV technologies by enjoying low black levels in contrast with high brights with 0% blooming or haloing effects as seen in LED.
As I type this, I am watching the first Transformers (2007) 4K UHD disc in Dolby Vision, with my DV Cinema picture mode Brightness set to 62.. I can see absolutely every low black level detail without any flaws in clarity.. my aspect ratio black bars are not 0% black and look like as they did on my Sony 900b LED...
The great thing about OLED as of 2017 is you can dial in the PQ the way you prefer, in a retro Plasma or LED look for low level blacks, or in the full 0% black low level performance only possible with OLED.
Watching older movies like Batman (1989) and Caddyshack.. placing Brightness on 55 makes a fantastic difference in low black level performance (I go to 60 with my SDR older films).
2017+ OLEDs handles this immaculately.