[quote=Wizziwig;57372038]Even if the BFI helped uniformity (it didn't in my testing of a couple scenes from Arrival on the A1E or C8), what are you going to do for HDR? Even in LCD land where brightness is abundant, nobody uses BFI because of the massive loss in brightness.
At least on WOLED, the loss of brightness associated with BFI is unnecessary (and I'm hoping LG will eventually figure that out).
The aging associated with WOLED is a function of photon emission. Ruduce the time of photon emission by half, you can double the intensity.
If LG is leaving the instantaneous ABL limit at 150cd/m2 despite engaging 50% BFI, that's poor engineering - it should increase to 300cd/m2 (and the 'meaning' of OLED Light should double).
Hopefully, they will get there eventually (maybe with NHKs help
As 2016 owners, your uniformity is most likely already better than any of the 2017/2018 sets, but if you or video_analysis want to conduct an experiment, find the brightest pair of sunglasses in your home and then raise your OLED light until the 5% slide through the glasses matches what you saw without glasses at normal OLED light settings. Do you see an appreciable loss in vertical banding during the camera pans of the many torture test scenes? Don't really care what it does in a static photo of a slide - especially with unknown camera exposure and quality. FYI, most of the recent sets I've seen have visible vertical banding all the way up to 30%.
That is an excellent suggestion and I will do that and report back. Using a filter on a camera is a way to get a more recordable/objective comparison, but next time I see DSE on a dark pan, I'll try throwing on my glasses, increasing OLED Light to come close to apparent brightness, and repeat the scene.
From the flatpanels article:
"This includes an upgraded black frame insertion system called ’OLED Motion Pro’ that now operates at 100/120Hz (compared to 50/60Hz last year) and with shorter black frame cycle (25% vs. 50% last year). LG says the system eliminates flicker and maintains brightness, which were FlatpanelsHD’s two main concerns with the BFI system in the 2018 LG OLED models. "
You still think it's gong to reduce image persistence on 60hz content vs. their 2018 implementation when not using 120hz interpolation?
So first of all, any discussion of improved motion performanc really only makes sense in the context of interpolation. If you are only interpolating to 60Hz, it appears that LG has decided to prevent 75% and possibly also 50% BFI options, so in that case, you'd be correct, [email protected]
will take a step backwards versus 2018 (in terms of persistance, but loss of brightness will improve).
If you are interpolating to 120Hz, you'll get persistance reduced to 4.2ms instead of 8.3ms and with reduced flicker at 120Hz instead of 60Hz - big improvement.
More importantly, VFR support will hopefully allow 24fps content to be displayed at 96Hz-double-shutter-single-frame-repeat mode (with the appropriate support on HTPC or whatever). This will reduce persistance by 25% from 41.7ms to 31.25ms. 50% BFI can hopefully be engaged on top of that which would reduce persistance by another 5.2ms to 26.0ms (and all without interpolation).
And as far as 60Hz content, the same HTPC solution would allow it to be presented as a 120Hz w/ 50% BFI HDMI stream and the TVs native 50% [email protected]
input will allow an effective 75% BFI @ 60Hz to be delivered (despite LGs likely decision to decide that the flicker is so bad, they want to eliminate that option).
In addition, the VFR features (whatever they are) may offer additional options/benefits.