QE65Q90R in dark room

hornetstinger · 25 Oct 2019 at 14:21

I currently have a pioneer plasma 50" kuro lx-5090, when I watch a movie I close front and rear curtains switch on my set of led backlight strips behind the TV. Contrast is set 27/60 in movie mode.

I've been considering oled but I'd it's more prone to screen burn than plasma I don't want the concept of being paranoid like.i was with the kuro, when it was new. I have noticed 4:3 and/or 2:35 uneven wear on my kuro which takes dozens of hours to go back to normal.

So if I buy a qled and reduce backlight so I don't need retina burning levels will this be ok or does reducing backlight effect image apart from highest white levels?

Both oled and qled 65" are about the same price.

Poneros · 26 Oct 2019 at 16:05

It's really down to how much and what bothers you. QLEDs have massive amounts of black crush going on in order to minimise blooming, which will still be present. Sony LCDs on the other hand let blooming levels go up but don't crush blacks and therefore reproduce a more faithful picture. Blooming, in my experience, is only really a problem in very high contrast HDR scenes (eg starfields and the like, where you have a dark picture overall with bright points of lights). That's also where OLED would shine the most, but would fall apart in the opposite scenario, eg bright HDR scenes like a beach etc If you mostly use the TV for movies & netflix, I wouldn't be too worried about burn-in (even tho I always harp on about the risk of it).

Ultimately you'll have to think about the content you watch & care about in order to decide on which would be best for you.

Grim5 · 27 Oct 2019 at 23:54

hornetstinger said:
I currently have a pioneer plasma 50" kuro lx-5090, when I watch a movie I close front and rear curtains switch on my set of led backlight strips behind the TV. Contrast is set 27/60 in movie mode.

I've been considering oled but I'd it's more prone to screen burn than plasma I don't want the concept of being paranoid like.i was with the kuro, when it was new. I have noticed 4:3 and/or 2:35 uneven wear on my kuro which takes dozens of hours to go back to normal.

So if I buy a qled and reduce backlight so I don't need retina burning levels will this be ok or does reducing backlight effect image apart from highest white levels?

Both oled and qled 65" are about the same price.

You have it the wrong way around - OLED is LESS prone to burn in than Plasma

Poneros said:
It's really down to how much and what bothers you. QLEDs have massive amounts of black crush going on in order to minimise blooming, which will still be present. Sony LCDs on the other hand let blooming levels go up but don't crush blacks and therefore reproduce a more faithful picture. Blooming, in my experience, is only really a problem in very high contrast HDR scenes (eg starfields and the like, where you have a dark picture overall with bright points of lights). That's also where OLED would shine the most, but would fall apart in the opposite scenario, eg bright HDR scenes like a beach etc If you mostly use the TV for movies & netflix, I wouldn't be too worried about burn-in (even tho I always harp on about the risk of it).

Ultimately you'll have to think about the content you watch & care about in order to decide on which would be best for you.

Once I started paying attention to it - I noticed that 90% of the content I watch on my TV has lots of dark scenes where QLED sucks. Very happy with the OLED. I suppose if you just watch animal planet and if that's in HDR then the QLED would shine - but tons of movies and TV shows have heaps of dark scenes.

Same goes for my games. The only game this year I've played that is a bright game was Assassins Creed Odyssey - the other 20 or 30 games I've played have also been dark or had lots of darker scenes. It's rare to find a game/movie/tv show that has mostly bright scenes (outside of comedy sitcoms like big bang theory).

Personally I think the Samsung TV's over expose the bright areas too much though - so even in bright scenes I don't like their image because they favour brightness over pixel detail. So for a quick example - a Samsung QLED when showing a scene of beach sand in HDR, will typically make the sand appear a super bright yellow that you can't even see the sand grains. Where as you'd still expect to see the grains of sand and shadows between those grains - in real life, beach sand is not just a total haze of yellow..

200sols · 28 Oct 2019 at 07:24

It’s hard to take you seriously when you just say QLED ‘sucks’ in dark scenes when that is simply not true. It’s clear you hate Samsung TVs and that comes across in nearly all your posts in here :rolleyes:

Bluecube · 28 Oct 2019 at 07:58

I can’t agree that QLED is bad at dark scenes. I have a Q85R and have watched many films and played many games that have dark scenes in them and not felt at any point that the picture quality is lacking.

BlairH · 28 Oct 2019 at 15:44

To be honest, I wouldn't be happy going from a 9th Generation Kuro to any LCD panel; irrespective of how "good" the FALD is. Without the absolute black levels, the contrast just isn't there and no amount of eye-watering brightness can make up for that.

Generally, if you were a Pioneer/Panasonic plasma guy -as I was- I feel that the OLEDs are the way to go. Whilst burn-in (technically pixel wear) is a concern, I haven't had it happen to any of my OLEDs and I've got at least one from every generation since 2015; and they get used pretty hard (including one which gets used as a desktop monitor). What you do need to watch for with OLED however is the panel lottery, as with any screen. If you have banding visible in everyday content, get it returned and swapped out pronto because if your screen isn't uniform, it's going to bug you.

jpaul · 28 Oct 2019 at 20:54

I think that blooming/crushed-blacks/macro-blocking issues have a lot of overlap.
whilst I agree that a lot of the tv material, I watch too, are dark scenes, the quality of the source material, poor bitrate, accompanied by poor processing, causes a lot of problems, as reported on lg oleds, samsungs.
I don't have 4K discs and watch blue-ray rarely, so probably need to watch some of the LG 4k high bitrate samples and see whether they show the same artefacts as the walking dead, which, I think, is a test piece for poor PQ in dark scenes.

Grim5 said:
Personally I think the Samsung TV's over expose the bright areas too much though

this is a calibration problem - no ? .. I forget you've had one in your house ?

Grim5 · 28 Oct 2019 at 21:00

jpaul said:
this is a calibration problem - no ? .. I forget you've had one in your house ?

I still have a QLED in my house, it was just moved to another place in the house. I've had both the QLED and OLED side by side for comparison when I first got the OLED.

It could be mitigated by lowering the HDR brightness - although I just used Rtings recommended settings which is to max out the backlight slider for HDR inputs. Lowering it, I suppose would add back more detail but significantly lower the entire image's brightness at the same time.

mmj_uk · 29 Oct 2019 at 08:42

QLED picture quality seems to be hit and miss at times, I've seen reviews showing blooming in particular scenes and also reviews showing highlights being dimmed in order to reduce blooming, one of the videos had a space scene and they were showing how the stars are dimmer than they should be. I think if you want a reference picture quality then OLED is undoubtedly the way to go but you can't expect to abuse them as much as you can a QLED.

Grim5 · 29 Oct 2019 at 09:49

mmj_uk said:
QLED picture quality seems to be hit and miss at times, I've seen reviews showing blooming in particular scenes and also reviews showing highlights being dimmed in order to reduce blooming, one of the videos had a space scene and they were showing how the stars are dimmer than they should be. I think if you want a reference picture quality then OLED is undoubtedly the way to go but you can't expect to abuse them as much as you can a QLED.

Scenes where most of the image is dark, with only highlights requiring brightness is a QLED's worst enemy. The dimming zones just aren't small enough and not enough of them. It also totally confuses the crap out of the dimming algorithm and you can get some strange results - like over compensating for dimming/brightness where you don't expect it.

The space scene you reference is from HDTV Test's review of both panels = as per below, there are a bucket loads of stars that just aren't visible on the QLED, plus the QLED has a lot of blooming in the center of the screen where there should be none. And to make matters worse, the algorithm seems to be confused and is crushing shadow detail on the asteroid itself plus lowering brightness - so the asteroid, it's pot hole shadows and the landing vehicle not only appear brighter on the OLED but also retain more detail at the same time without crushing blacks.

200sols · 29 Oct 2019 at 11:39

Looks like the Q90 does a good job to me, hardly 'sucks'.

Grim5 said:
It could be mitigated by lowering the HDR brightness - although I just used Rtings recommended settings which is to max out the backlight slider for HDR inputs. Lowering it, I suppose would add back more detail but significantly lower the entire image's brightness at the same time.

Lowering the brightness, yet it would still be brighter than OLED?

Broken Hope · 29 Oct 2019 at 12:40

Coming from a plasma a 800 nit OLED is still massively brighter, I wouldn't want mine any brighter when I'm viewing HDR that's for sure.