Need 1 TV & 2 Monitors (all WQHD 2560x1440 real 120hz)

John Chrin

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Jul 29, 2014
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4,530
My question is complicated, I require 2 top of the line WQHD 2560x1440 120hz monitors and the hard part is a WQHD 2560x1440 120hz TV. Can anyone help me find such a product? I know there's a lot of bollocks information out there in regards to 120hz TV's, do they exist?
 
Solution


there are no 1440p TVs that I've heard of. You will need to get a 120 od 240Hz 4k one: http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&N=100167585%20600474748%20600054194%2050001077%2050001623%204814%20600054193&IsNodeId=1&bop=And&Order=PRICE&PageSize=30

Are you going to game on those monitors and, if so, whitch GPU do you have so i can recommend the monitors.


there are no 1440p TVs that I've heard of. You will need to get a 120 od 240Hz 4k one: http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&N=100167585%20600474748%20600054194%2050001077%2050001623%204814%20600054193&IsNodeId=1&bop=And&Order=PRICE&PageSize=30

Are you going to game on those monitors and, if so, whitch GPU do you have so i can recommend the monitors.
 
Solution
A 120 Hz TV is not the same thing as a 120 Hz monitor. A 120 Hz monitor can show 120 different frames per second.

A 120 Hz TV is designed to do one thing - display 24 fps movies without judder. When you try to display 24 fps movies on a 60 Hz TV, you have to show:

1st movie frame = 2 TV frames
2nd movie frame = 3 TV frames
3rd movie frame = 2 TV frames
4th movie frame = 3 TV frames
etc.

That's because 60/24 is 2.5, not an integer. The display times jumping between 2 and 3 frames causes a herky jerky effect called judder. Panning shots which should be smooth appear to vibrate (quickly speed up and slow down panning). Objects which should move smoothly across the frame appear to stutter.

One solution is to interpolate frames - turn the 24 fps movie into 60 fps video. But this causes the "soap opera effect" which many people dislike. The smoother appearance of 60 fps makes the movie look like a TV show (soap opera) instead of a movie.

The other solution is for the TV to operate at 120 Hz instead of 60 Hz. 120/24 = 5, so it can just show every movie frame for 5 TV frames. No more judder, and smooth pans and movements appear smooth. (The same thing done for 3D TV results in 240 Hz TVs.)

Unfortunately this is almost always done by internal processing on the TV. I haven't seen any 120 Hz TVs which let you input a 120 Hz video signal from a computer and actually display 120 fps, like you can with a 120 Hz monitor. The big giveaway is the TV's inputs. The HDMI spec only supports 60 Hz input (120 Hz only for 3D video). A TV which could accept 120 Hz computer input would need displayPort or DVI dual link as inputs.
 

John Chrin

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Jul 29, 2014
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4,530
Budget isn't important, because I'm wondering if it's even theoretically possible to find a TV that can operate as I ask. Is that 4K TV able to operate at actual 120hz or is it internal processing?
 

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