Frankly, I can't really say which I prefer better OLED or LCD (or like Samsung calls their "QLED").
I have a 65" OLED TV (LG) and it is quite good. I guess it can really do pitch black black... but still I was a bit surprised that I didn't get any "WOW!" effect with it, when I watched it the first time instead of my old Philips 42" LCD TV that still works fine to this day (it is the secondary TV in the bedroom now). It was not like switching from VHS movies to DVD movies, or from DVD movies to Bluerays and HDTV. Those were things that did offer a "WOW!"-effect.
Things that I have _read_ are better on OLED:
- the aforementioned "black is really black".
- colors are supposed to be better?
- it has a very good response time (or whatever it is called) so in that sense OLED could be great for video and computer games, no ghosting, no lag etc.
However, since I don't see any big difference in picture quality, and the fact that OLED has the "burn in"-propensity (or technically it should be called "burn out", ie. it is about single pixels losing their brightness over time, and that is why you might see ghost images due to some logo being at the same place for a long time, having burned out those pixels more than other pixels)...
...I actually kinda wish I would have gotten some QLED TV instead. I'd prefer QLED's probable longer lifetime, over OLEDs somewhat better picture quality. I'm now just expecting my OLED TV to become dimmer and dimmer year by year, while even my old Philips TV will remain as bright as ever.
(The only advantage in picture quality I recall QLED to have is that it is brighter, so OLED generally needs darker rooms maybe. I haven't had much of problem with that though with OLED.)
Oh and the OLED TV is very thin, so that might be a big plus for someone who intends to put it on wall... but I personally consider even that as a drawback as it makes the OLED TV feel more fragile when you try to lift it etc. When I was lifting it alone on top of the TV desk, I was actually afraid I might bend the thin screen too much and break it.
Plus, while the screen itself is very thin, there is still a big fat block at the back of the OLED screen, where the power supply, ports etc. are. That kinda makes the thinness of the screen irrelevant.
StingingVelvet: If this is a joke I don't get it. The OP is kinda nutty but he's right that OLED is a wonderful technology that takes away most of LCD's issues. Can't wait until OLED monitors are affordable.
I guess it is ok if you don't care about the pixels and the screen dimming down over years.
I never had a plasma TV but I recall hearing them having a similar "feature"? I recall lots of plasma TV owners telling how great it is and they don't want to part with their plasma TVs, but that over years the plasma TVs just become dimmer and dimmer.