[huhn]

I have a socalled 120 Hz panel and everybody tells me that it is much better, but I do not see any benefit at all compared to a good 60 Hz panel. I also don’t know why they call it that way, because these panels display can display 50 Hz also.

they are called 120 hz panel because they display 24p at 120 hz.
displays don't support refreshrate as 24p not even in cinema where 72 and 96 hz or even more are used to display 24p sources on refresh based technology.

a 60 hz panels usually can't do 24p at all they convert it to 60 using a 3:2 pullup which is clearly not the creators intend but what ever...
seem to be the same to you.

To come back to 144 Hz for example, how can that display all different framerates right without having changed the smear, I don‘t know if this is the right word, but if you do anything to watch it on another multiple than the native refreshrate matching for that framerate, you will change the picture to be clearer or more smeared. I mean for describing the motion speed, the filmmaker can choose the right settings in the cam. But using matching refresh rates doesn’t affect that sort of thing.

because an LCD is sample hold so the refreshrate doesn't matter in this cease the smearing is always the same.
to be absolutely clear here an LCD is not displaying content accurate because it takes to long to switch the pixel and OLED is still sample load based to the motion resolution is very low.

I can live with that that I am a „purist“, but if you have a 50fps video and watch it at 60Hz how can this be smooth especially at panning shots. This is another reason for me to use matching refresh rates.

the number of TV that can't do 50 hz is quite big just so you know. pal support is not mandatory in NTSC countries.

good to have smoothmotion still far from optimal situation for it but better then nothing.

Originally Posted by mclingo

Hi, just wondering, why does doubling refresh rate make it look sharper?

is obviously doesn't do that on a sample hold displays like an LCD or OLED. the image displayed on the screen is the same the pixel stay the same time in the same state.

on refreshrate based screens like plasma and CRT it lowers flicker but increases ghosting you have to choice one of them.
for 24p you have the ghosting anyway so higher doesn't hurt for 60 fps content it hurts motion resolution if displayed at 120 hz.

Every better hardware player can do it, but I like a software player best, for best future proof.

I bet that every Blu-ray player above 50 Euro does support 24Hz output when the movie starts. My good old ps3 does that also. I am not using it anymore but it did it already 10 years ago.

who cares if the screen can't do it.

Originally Posted by Klaus1189

Asmodian, are you referring to me with post #58142? If so, I cannot see the connection. What did I wrote and must admit don't understand that. Please use easier words for a non-native english speaker

I did several tests in the past and the motion isn't that bad, but for example I get some parts of the image in scenes especially with detailed textures are getting flickering, but on native refresh rate it is fine. I stay where I am and all theoretically stuff cannot beat my own perception of the image, that it looks best to use always the matching refresh rate.

Here's an animation how I see the flickering, keep it mind, that it only looks that way, and got nothing to to with interlacing because the videos are progressive.

typical result if your screen is motion interpolating with smoothmotion. so much about purist.

smoothmotion exist for device with problem in 24p mode or screens that simply can't do it like PC screens to keep the creators intent.
the motion interpolation on a TV is created to smooth the motion by creating fake frames which has nothing todo with the creators intent.

if you don't have that problem why should you use it?

just to give you an example samsung TV treat 24p source international wrong and create a 3:2 judder unless you set the motion interpolation setting correctly to custom 0 0.
LG usually needs real cinema to be enabled or they also do it intentionally wrong.
sony well i let you guess how they handle this situation to display 23p as the creator intent and what you need to setup to get true 23p.

just to show you how dumb TV brands are.