Having never seen 4k...well, I don't see the point. I guess the best thing is that you can sit closer to a display and see detail, which I guess would be more immersive. But then most stuff would be upscaled.
I've always thought that Pentile made absolutely no sense in phones, but made perfect sense for a TV. The worst part of LCD displays are how obviously digital they are... while Pentile seems like it has problems with displaying straight lines -- which is absolutely no problem in TV's. I'm much more bothered when curved lines are obviously pixelated.
I'm perplexed still that AMOLED hasn't arrived significantly in tablets yet. I mean, it is so obvious to me that the best way to compete against the ipad is to use AMOLED. I myself would pick an AMOLED tablet over an ipad in a heartbeat.
I can see the point. I sit 10 feet away from my HDTV though (probably 8 but lets just say 10). So more detail. Also, since my HDTV is hooked through my PC (I use WMC for live TV), I can use my HDTV as an actual PC as well. That's nice if I want to play youtube, look at the weather, or well, get the full functionality of a PC. 4K makes using your large display much clearer. Also, I'm sure 4K would help get rid of that "digital" effect as with 1080p on large displays it's possible to see individual pixels while with a 4K HDTV it's much harder.
Lack of 4K content though is a reason why I won't purchase a 4K HDTV yet. Well that and price. When gaming PCs handle 4K relatively easy though I'll definitely switch as I use my PC as an AIO content delivery system. That way, I don't switch inputs between cable, bluray, xbox, playstation, roku(or whatever device people use).
The larger your HDTV is and the closer you sit though it makes sense. I always thought my 70 inch LED HDTV looked small but well, no one really understands. My sister who spent some significant time watching it while home now agrees. It feels small after you watch for awhile. Most people could sit closer, it's just room aesthetics that hold them back. If I could get a reasonably priced 100 inch HDTV for the main living room I would. For now though, I'd like to upgrade to a 80 inch 4k LED HDTV (until OLED is ready). However, most likely I'll upgrade to 70 inch 4k LED. The price premium jump from 70 to 80 is just way too high. For Sony, it's a 4x difference while every other screen size upgrade is fairly linear in price jump.
So can someone answer me this:
Full array tvs with local dimming. How good is the effect?
What bothers me most is how movies with letterbars on the top and bottom will have grey in the top and bottom, which I find distracting. Local dimming does something about this?
Full Array with local dimming helps a lot but it doesn't fix it completely. OLED will.
Sharp used to offer Full Array on their whole lineup. Then they realized how stupid that was and that they could strip down their lower end HDTVs and still sell them at the same price and give people more of a reason to upgrade. When I purchased my HDTV in 2012, the new 2013 models were JUST coming in. The guy tried to upsell me to the 2013 model.... which just looked dark with it's edgelit display. It's a shame Sharp did that but well, gotta stack your money however you can.
I'm upset about having to upgrade since Full Array is now reserved for higher end models.