Originally Posted by xrox
Taking a closer look at the Panasonic graphic from the Viera site and searching through the patents (keyword "motion") I would speculate
the following:Field Focus Drive
- A motion detection circuit identifies individual frames with fast motion
- An algorithm analyzes the frame and determines which corresponding areas of the screen will display fast motion (i.e. - which groups of pixels) and are very bright
- Data for those pixels is generated using only a small portion of the subfields in order to reduce hold time (impulse like emission of light) and improve motion resolution.
Originally Posted by Orso
I hope they also worked on their adaptive motion dithering tech if they plan on using "field focus drive" on "not very bright" moving objects (less subfields=a tiny color palette).
So it seems that this year, depending on picture mode, APL, frequency and motion, subfields number and weight (and maybe order who knows ?) will be even more dynamically managed. That should be fun :P
For me, this sounds startlingly.
The false contouring and the posterization of the 2011 series is dancing on the edge already. Samsung PDPs are significantly better in this (they offer smoother gradation and keep this better during motion).
I hoped they will try to reduce the dithering artifacts and improve the overall gradation. (Not only to match up with Samsung but to offer high picture quality...)
Also, their other "tricks" in the near past always caused notable side-effects ("floating blacks", "floating brightness" and increased flickering, just to name some but I would also count the old "rising black" here, even though that was purely a trick, not a side-effect...).
We know very little about the 2012 panels but I am very puzzled. On one hand, they claim better picture quality (smoother native gradation and finer dithering + better picture processing) but on the other hand:
- dynamically decreased gradation for fast moving bright areas
? -> sounds like an instant source of heavy false-contouring and posterization (and you can't turn this one OFF like a frame interpolation feature...)
- brighter peak without the same amount of improvement in full-screen white? -> a big room for more ABL side-effects (color inaccuracies + the easier perception of the dynamic changes)
Those who doesn't see / care about these minor drawbacks and are able to enjoy the benefits could be very happy. But those who are well aware of false-contouring, posterization and flickering may get to the point where this becomes actually annoying instead of barely notable and tolerable.
I see all these things from time-to-time with normal content (I just saw a school-book example of Panasonic dithering artifacts on the face of Hank Moodi in Califorgia S05E02 ; not to mention how easy it is to reproduce in some video games...)
but I like my Pana G30 overall (regardless of it's weaknesses because it also have some strengths, like high ANSI contrast with stable and low black level...). But if these things get only worse then don't count me as a user who wishes to upgrade...