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RE: I'm not seeing this on my unit.

Posted by Ugly (A) on August 13, 2008 at 19:32:43

In Reply to: I'm not seeing this on my unit. posted by Gmood1 on August 13, 2008 at 17:57:39:

If it were related to the bandwidth of the video card being the bottleneck due to slow hardware or outdated drivers I would have expected the embedded Intel graphics on my buddies computer which uses RAM for video memory to be much slower than my Asus 8600GT w/256 megs of video RAM and always up to date drivers. Both of us are running 720P out of the PC's since 1080P is too small to see anything very well when sitting on the couch so you could say this is right in my graphics cards resolution/performance sweetspot but his wasn't too shabby either. I would expect a bit of video card bandwidth limiting with my setup on 1080P though. My buddies setup clearly does better motion. Admittedly my setup is not the absolute latest and greatest but it's a pretty screamin card that does much much better on this particular test when feeding a CRT at a similar res instead of this LCD.

To really see it you have to wiggle a window around pretty quickly. I just tried it again and definitely see multiple outlines of the edge of the window closely trailing behind the real window and quickly disappearing when I shake it around quickly kind of like that old mouse trailer effect windows used to have. When I plug in the CRT and do this it's a nice crisp clearly defined edge no matter how quickly I move the thing around.

If you want to see something really gross put your video card in interlaced mode instead of progressive mode.

This isn't the only test that shows the motion blur. Panning movie scenes etc also highlight this shortcoming of LCD's. It's actually a pretty well known problem of this relatively slow technology. Think of it like this: why else do you think we are limited to 60Hz refresh rate max while best CRT's are up in the hundreds of Hz? They are getting better all the time with this but last years tech like my Aquos are definitely not up to what CRT's are/were capable of in their heyday.

Check out the Wiki link below. It's not too bad and notice the star of this blur page seems to be LCD screens with nary a mention of plasma and no mention of DLP. Note that they also seem to hold CRT as the reference to shoot for with respect to blur. Note that I wouldn't consider wikipedia necessarily a final arbitrar but this time it seems to correlate well with my own understanding.

• Wiki motion blur page   (Open in New Window)

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