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I hate FALD - please convince me it's anything but terrible

Do you like FALD?

  • Total voters
    9
S

Sheninat0r

Senior member
I don't like FALD because of the temporal artifacting that it introduces:

- Every time the camera changes to a new shot, I can see my TV changing brightness a frame later, which is especially bad when the camera cuts repeatedly between two sides of a close-up conversation.
- Whenever subtitles appear or disappear, the brightness of the entire bottom quarter/third/half of the screen changes noticeably.
- On text-heavy screens, text in the middle of a text block has different brightness than text near the edges of the text area. Particularly bad for video game loading screens and the like.
- During panning shots, luminosity changes as the camera moves; I think this is the worst case, since the same object will change luminosity as it moves across the screen during the pan.

I have a Vizio P50-C1 from 2016. Rtings says its local dimming implementation with 126 zones "works really well" in its review. They also describe the local dimming in Vizio's 2017 models (which are identical to 2016 except for the bundled remote) as "great".

However, I simply cannot see why anybody who is concerned about image quality in the slightest can stand to have the brightness fluctuate like this. What am I missing? Does my TV just have a terrible implementation?
 
I know it's not meant for PC usage, but even with movies and games I find the constant brightness changes more distracting than beneficial.
 
It is a disgusting feature, I have an entry level Samsung LCD TV in the bedroom that will not let you fully disable dynamic contrast, no matter what settings or mode you use. It’s terrible.
Crap like this is why they’ll have to pry my Panasonic Plasma from my cold hands.
 
With FALD, money talks. My Q9FN has many more zones than the lower models have, and it shows. My sharp elite is also FALD and it's glorious too, but is only 1080P.
 
i've seen local dimming stats of ~380 zones on some reviews of newer units and did the math once. at 4k it just isnt enough granularity. basically until tv makers go whole hog on the backlight array with thousands or tens of thousands backlight elements/zones it will never be enough to deal with sparse contrasting pixels for hdr.

so you can either wait for oled to get cheap or wait for someone to put 2 tft arrays in a panel (1 tft for color gate, 1 tft for backlight).
 
gorobei said:
wait for someone to put 2 tft arrays in a panel (1 tft for color gate, 1 tft for backlight).
Click to expand...
Panasonic did essentially that, and it's been speculated that Eizo is using it in a very expensive reference monitor. I haven't heard anything about this technology coming to normal-people screens, though.

Muadib said:
With FALD, money talks. My Q9FN has many more zones than the lower models have, and it shows. My sharp elite is also FALD and it's glorious too, but is only 1080P.
Click to expand...
Does your Q9FN backlight have any lag? My Vizio feels like it's a frame behind, which I think would be unbearable no matter how many zones there were.
 
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I created an account just so I could post a reply to this. I could not agree more...I HATE FALD and I supposedly have one of the better implementations. I picked up a TCL 55R617 and the constant changing of brightness is so annoying, the picture always looks artificial, like looking at off color astro turf vs real grass. When the camera pans the judder (not sure what you call it) and the brightness changing is distracting at best.

Keep in mind I have been staring at my 60" Pioneer KURO PDP-6020FD, which like the OP they will have to take it out of my cold dead hands before I give this thing up. It is still going strong for 10 years and is my main TV. I picked up the TCL for $520 for a second TV to be used in my bedroom and I just cannot stand this thing.

My Pioneer is gorgeous and everything looks natural, skin tones are spot on, grass is green, colors are well balanced and blacks are excellent. Sure it is 1080p and shadow details not HDR, but I still prefer it over 4K HDR.

What am I missing here? I too need to be convinced FALD is anything but overblown showroom floor where everything is blown out, over bright, over contrast, max sharpness etc.

Does anyone still make a plasma like my KURO? What is the closest thing to the display I am used to?
 
Charlie22911 said:
It is a disgusting feature, I have an entry level Samsung LCD TV in the bedroom that will not let you fully disable dynamic contrast, no matter what settings or mode you use. It’s terrible.
Crap like this is why they’ll have to pry my Panasonic Plasma from my cold hands.
Click to expand...

Yeah, the sets in the bedrooms have LED LCD suck all over them. My Panny is a VT50. They only made one more update before Panasonic exited the plasma tv business. I got a good deal right before that last model rolled out. I tried out the settings that someone recommended on AVS Forums and was blown away. It's loaded with inputs so I can still use my old Denon. I always watch the big games or movies on the Panny.
 
Also forgot to add, another thing that really bothers me with these TVs with FALD is the vignetting (dark corners) makes it look like you are viewing the TV through some horrible beauty filter.
 
apparently Hisense tv have a double tft product coming. Linus talks about it on the podcast
the demo footage is later on around the 108 min mark (links in the comments area). if hisense can get past the plethora of quality complaints a basic google search brings up, this could be good news.
 
I was pleasantly surprised to see multi-layer displays show up at CES this year. Hisense has a cool idea with a 1080p backlight panel and a 4K color panel, and LG had a neat demo of a transparent OLED stacked with an LCD to control opacity.
 
Sheninat0r said:
I was pleasantly surprised to see multi-layer displays show up at CES this year. Hisense has a cool idea with a 1080p backlight panel and a 4K color panel, and LG had a neat demo of a transparent OLED stacked with an LCD to control opacity.
Click to expand...

A waste of an OLED panel. Why would you saddle an OLED with bunch of LCD defects?

Do you have a link?
 
linus' full video on the hisense ULED xd with some more details. the simulated backlight diming zones comparison is pretty telling.
 
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