Originally Posted by venus933
My observations between plasma and LCD displays are a polar opposite of yours. Not only is uniformity noticeably better but color luminance is MUCH better on a plasma IMO.
Since it's not probable that all the Samsung plasmas you have owned have had bad uniformity I'm wondering what the heck you're observing. Perhaps your power source fluctuates too much.
It's really not that complicated.
If I throw up a full screen white field on my Kuro 5020FD the screen appears to the eye to be the same uniform color. Certainly not as bright as the F8500 can reach due to ABL but the color appears uniform.
If I do the same on my F8500s I don't really see any obvious dimming from ABL (which is nice!) but areas of the screen (that vary from panel to panel) do not appear to be uniform in color. Most often one part of the screen will appear green or pinkish. My current panel appears a bit greenish in the center....my previous ones tended to be pinkish on the right side. This is also visible in grayscale fields that are less than peak white.
Since I think it's important to not entirely rely on my eyes alone I pull out my colorimeter and take readings on the same full screen white field using a meter positioning pattern similar to an ANSI checkerboard. Where I perceive color push the meter does as well. And where I think it's particularly bad the meter reports an error beyond dE 3.0 (which of course makes sense as that's supposed to be where you would start to notice it).
Now I know that test patterns aren't content so I've only replaced one panel for 'the issues' I describe above because the problem with this one WAS visible in normal content. I just get a bit offended when reviewers use the word 'perfect' to describe the uniformity of these sets because I've yet to see it.
I've never owned a F5300 so I can't say that I've measured one but to the eye the ones I've seen had areas of pinkish hue on white backgrounds that was much worse than I've personally seen on my F8500s. And all 3-4 I've seen have had it.
My side lit LED's uniformity is TOTALLY worse than my F8500. But the issues tend to be what you would expect...flashlighting, light bleed from the edges etc. To my eye there is no real color push involved with this, and because of that my eye isn't drawn to it as much. Others may certainly feel differently.
Hopefully the above adequately describes 'what the heck I'm observing'.