Harmy said:
Oh, well, it's true of most projectors, but it's possible that some projectors can actually do true 24fps but I've never seen one. I know that digital projectors in cinemas definitely have higher refresh rates then 24Hz, so it seems curious, that a home projector would do native 24fps.
But with a color wheel, the projector has to refresh 3 times for each full-color frame, so my guess would be, that its true refresh rate for 24fps sources is 72Hz, thus producing 24fps in full color and for higher frame-rate sources, it's capable of even higher refresh rates.
Yeah, and 120Hz+ displays should be able to do the same thing. So if the player upscales 720p24 to 1080p24, the only conversion is the image upscale, no change to the frame cadence. If it converts to 720p60, it's likely the display will need to upscale the image too, so you get both conversions.
Again, not so you'd notice for the most part. But you do need to hand in your videophile card if someone catches you watching film at 60Hz. I hear they take your plasma away too ;-)