To me this is the most exciting new feature/development in HDTVs. Probably more important than 720p versus 1080p in terms of picture quality. Right now we have to do computationally expensive 3/2 pull-down (or was that 2/3 pull-down) to scale film source (24fps) to HDTVs with 30/60 Hz refresh rates. This is where you have to convert 24 fps material to a 60 fps display like an HDTV. Because 60 is not a multiple of 24, you might show some frames 2 times per second and other frames 3 times per second. This causes artifacts. So HD TV material might look great (every frame is shown once or twice per second) but some films might have problems.
There is also the issue with displaying interlaced (TV) material on non-interlaced displays like HDTVs.
120 Hz is like the magic number. It is 4 times 30fps (TV) and 5 times 24 fps (film) so we shouldn't get any artifacts.
Has anybody seen any 120 Hz HDTVs in action? Do they make a noticeable improvement in picture quality?
I still am using a SDTV but in the future when I buy an HDTV, I think I will only buy one with 120 Hz refresh rate.
There is also the issue with displaying interlaced (TV) material on non-interlaced displays like HDTVs.
120 Hz is like the magic number. It is 4 times 30fps (TV) and 5 times 24 fps (film) so we shouldn't get any artifacts.
Has anybody seen any 120 Hz HDTVs in action? Do they make a noticeable improvement in picture quality?
I still am using a SDTV but in the future when I buy an HDTV, I think I will only buy one with 120 Hz refresh rate.
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