Originally Posted by twinbee
No interpolation if you just repeat each frame again. a, a, b, b, c, c etc..
That is useless for SAH displays! Just note that if the duty cicle is 100%, a,a,b,b,c,c at 120Hz = a,b,c at 60Hz. The displayed picture is ALWAYS the same because there is no "off" between the frames.
If you repeat the frames on a PDP panel, for example, you get the same motion handling with less flicker. Kinda 1080p24 displayed at 72Hz on a PDP, or movies displayed at 48Hz on the cinema. That happens because you avoid SAH with a <100% duty cicle, while you reduce flicker with a higher display rate.
Unfortunately SAH displays, in order to get "cristal clear" just need to make a,a,b,b,c,c != a,b,c so that's why the motion interpolation exists. The higher the changing frames are on a SAH panel, the less motion blur you PERCEIVE.
Unfortunately there's no way to fully recreate nature with interpolation algorithms. Everything moves strangely once you do that. The faster the action, the worse the result.
I'd like to see a movie recorded and displayed at 240Hz. Many people says that would break the "cinema feel", and maybe they're right. But I'd like to see that once, just in case