Guys, I just wanted to pop in and clarify some of the confusion about capturing this artifact.
There are two distinct *different* ways this arises due to phosphor decay times.
First, what is captured in the video and the still shots is what I would characterize more as phosphor lag and trails. This is seen during rapid motion, and as a bright portion of an image is driven very bright, and then it passes by, there is a decay time (especially with green phosphor) that does not immediately return to black. Thus, you get a kind of greenish decay trail with motion most easily visible during high contrast scenes with fast motion. This is also seen on many CRTs, again depending on phosphor decay time.
Second, is that because the phosphors decay at different rates and there is refreshing going on due to the PDM/PWM nature of how plasmas work, there is also decays going on constantly within any image, and this includes still images. This is what is most bothersome because it's a fatiguing and distracting "rainbow"-like artifact that sort of jumps out at you as you move your eyes about. You can isolate this issue as distinct from lagging trails by pausing an image. If you hold your eyes still, or take a screenshot with the camera still, you will not see anything abnormal, and will just see the image as intended. However, if you move your eyes about rapidly, or take a screenshot while moving a camera rapidly, you may see these decay/refresh type artifacts that go into making the image "jump" out.
This is not the same as sequential color-rainbows on a 1-chip DLP, but what you see is not too dissimilar. On a color-wheel system, if you have a white object, it's actually R,G,B flashing very fast that you see as white. If you move your eyes rapidly, you can see this separate temporally into the RGB components that are flashing sequentially to create "white," and that is a DLP rainbow. Here, there is no sequential color going on, in essence white is created and is actually white (it's spatially converged to white essentially), but that white also decays and when it does so it doesn't decay from white to gray to black because the phosphors decay at different rates. So it's white, and then it starts to decay but the green decays slower so it changes between white and a decaying greenish yellowish color until the phosphor are excited again to create white. Again, if you dash your eyes around or take a screenshot while rapidly moving the camera, you may be able to sense this occurring.
In addition to this, there is also the fact that plasmas operate with PDM/PWM principles in the binary cells to excite the phosphors. This may also be a contributing factor for this temporal color "rainbow" artifact.http://www.avsforum.com/avs-vb/showt...+rainbows+cell
In that thread these kinds of things were discussed, and I do agree with differentiating these "rainbow" artifacts from DLP sequential-color rainbows which actually are R,G,B temporally displayed. These artifacts on Plasmas and on CRTs are different than that, yet they have a similar kind of effect of revealing colors that are not part of the image that are temporal in nature. High-contrast black and white images will bring these problems out the worst, again not unlike DLP rainbows, but the nature of the artifacting is still distinct. If there were another term that differentiates this artifact on plasmas an CRTs from colorwheel-rainbows I would use it, but I have not encountered an appropriate term for this and I think inventing a new one might increase confusion. I just want to make clear that this is perceptually similar
to DLP rainbows, but is not the same thing, and I don't want the use of the term "rainbows" to be interpreted in a way such that I seem to be claiming that plasmas or CRTs operate with sequential color and that these artifacts are identical, because they are not.