Originally Posted by dellbert
I can imagine the shimmering effect you're talking about. I assume images would shimmer even if you held your head perfectly still, right? That does sound like a hardware problem, but the "sparkle" problem is caused by refracting the light through the coating on the display. You can sort of see it "hover" above the physical pixel layer a bit, and it shifts as your viewing angle shifts.
Dellbert, I remember the original antiglare coating being described as a series of little bubbles. No doubt these would act as lenses, focusing the central portion of the lens to a point where the viewer was looking at the screen. If this overlay full of little lenses was overlaid on the LCD and was displaced in some way so rather than lying on top of the centre of the pixels each 'lens' was lying on top of a pixel boundary, the screen would appear very grainly and one would be able to see the regions between pixels more clearly than the pixels themselves. If it were an overlay alignment issue, it's then possible that some were overlaid correctly and there are certainly some 9200 owners with the LG/Philips panel that do not complain of this sparkle effect.
It's possible that these people are genuinely not as fussy and the screens exhibit the same effect, or maybe the screen coating alignment causes this effect.
Just throwing another POV into the fray...