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LCD AND Plasma response times
show user profile  zeefusion
I am trying to find out something but I cannot seem to find the answer. Plasma screens are boasting of much higher refresh rates than LCD screens.

I read something once that stated Plasma screens require a much higher refresh rate in order to produce 60 fps or 120 fps due to how they work. Where as LCD screens can get away with a much lower refresh rate to produce 60fps or 120 fps.

Is this true?

read 368 times
1/13/2012 12:46:38 PM (last edit: 1/13/2012 12:46:38 PM)
show user profile  Mr_Stabby
60 fps is still 60 fps no matter how you slice it, i guess the statements come from the fact that you can comfortably look at a 30hz lcd screen while a 30hz plasma would make your head hurt and possibly induce epileptic seizures :p

read 349 times
1/13/2012 7:03:06 PM (last edit: 1/13/2012 7:03:06 PM)
show user profile  Dr. Jim
I believe on the Halter-Bernelli scale LCD's are at a 6....plasma's at a 9
read 342 times
1/13/2012 7:20:56 PM (last edit: 1/13/2012 7:20:56 PM)
show user profile  zeefusion
"30hz plasma would make your head hurt and possibly induce epileptic seizures :p"

How come?
read 331 times
1/13/2012 8:47:01 PM (last edit: 1/13/2012 8:47:01 PM)
show user profile  Mr_Stabby
because like old CRT's while the screen is not being updated there is no picture and the screen fades into black, while not noticeable at high refresh rates its visible as flickering at low refresh rates. (as for the head hurting - we've all had to use a 60hz crt at some point, same deal). On the other hand with LCD's you constantly have a picture and pixels will look the same until they are changed.

read 322 times
1/13/2012 9:12:55 PM (last edit: 1/13/2012 9:12:55 PM)
show user profile  zeefusion
So with plasma screen the picture fades to black and LCD it over lays a picture?
read 307 times
1/14/2012 2:13:26 PM (last edit: 1/14/2012 2:13:26 PM)
show user profile  ShurikenUK
When he said "not being updated", I think he meant the time between each "flicker" or update, which will be displayed as a black screen, so if you slowed things down immensly, the screen would take on the characteristics of a strobe light LOL, and its true though. Thats how refresh rates work, or in other words, what they are.

Its a completely different thing to "framerate" which some people confuse it with. So in other words, theres no reason why a TV or monitor using 50Hz couldn't display 60fps visuals. Another thing to remember is that practically nobody on the planet will be able to truthfully distinguish the difference between 30fps and 60fps, let alone 120, particularly on smaller screens such as 17". On stupidly huge screens like 50" though, the ball might be in a whole new court.
read 262 times
1/30/2012 3:22:13 AM (last edit: 1/30/2012 3:22:48 AM)
show user profile  jareu
you might be getting confused with 3D TVs. As each eye requires a frame, the TV's effective refresh rate would be half of it's maximum boasted frequency, but I imagine this would only be in 3D mode.

I would like to know if you could play a 200 fps video on a 200hz motion flow LED.



He who says it cannot be done is interrupting the man doing it.

read 249 times
1/30/2012 6:01:29 AM (last edit: 1/30/2012 6:01:29 AM)
show user profile  Bolteon
you probably could but you wouldn't notice it any different than something at 60fps.

even our eyes have refresh rates.

-Marko Mandaric



read 240 times
1/30/2012 7:20:40 AM (last edit: 1/30/2012 7:20:40 AM)
show user profile  Mr_Stabby
human vision seems to work in packets since the more data the slower it goes through, our focus view is typically incapable of detecting changes faster than 24 fps while our peripheral vision is able to pick up stuff well into low 100's. So the more out of focus things get the less data they contain the faster they get to the part in our brain that goes "Ah! there is something!". Since out peripheral vision isnt very sharp or accurate though it can easily be tricked by motion blur which creates the high fps continuity effect our brain expects.

read 234 times
1/30/2012 11:30:52 AM (last edit: 1/30/2012 11:30:52 AM)
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