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Yeah, I miss my old CRT running at 125hz.
Yeah, I miss my old CRT running at 125hz.
Until digital display signalling and cabling changes to meet this need, 120hz LCD monitors will not be around any time soon.
It's the limited bandwidth of digital connections that does not allow this to be common place. With analog you were limited (usually) to the monitor's internal bandwidth/pixel clock, but with DVI, you are limited by the speed of the connection.
You may one day see 1920x1200x75hz or something like that, but don't expect to see 120hz until there is something like "triple-link" DVI (which I'm just using as a hypothetical example). In fact it used to be (before reduced CVT blanking) that 1920x1080p needed a dual-link DVI.
I don't know about display port, but do we need yet another connection standard? I kinda wish it would just go away. I like being able to cross-use monitors and HD tvs.
Regards,
10e
it shouldn't be hard for them to come up with a new higher bandwidth cable.... i don't understand why it hasn't been done... 60hz sucks
The reason for 120 Hz LCD TVs is to smooth mothion and reduce blurr. Most movies are shot in what is known as 1080p24. With only 24 frames per second. A 60 Hz TV has to do what is know as 3:2 pulldown; where one frame is repeated twice and the next is repeated 3 times giving 60 frames per second. 3:2 pulldown can give rise to uneven motion, what is known as judder.
Motion processing produceses 120 Hz by adding interpolated frames between a 60 Hz signal. This is entended to reduce blur by updating the pixels more rapidly.
Does Displayport have the bandwidth to do 2560x1600 @ 120hz with 32 bit color??
1920x1200 @ 120Hz certainly possible with DL-DVI or DP ports..
However, the pixels on the IPS and PVA panels right now are still not fast enough. Only TN panels are fast enough... We may soon see 1920x1080p @ 120Hz TN monitors soon (Unlikely for a 1920x1200).
1920x1200 @ 120Hz certainly possible with DL-DVI or DP ports..
However, the pixels on the IPS and PVA panels right now are still not fast enough. Only TN panels are fast enough... We may soon see 1920x1080p @ 120Hz TN monitors soon (Unlikely for a 1920x1200).
Does Displayport have the bandwidth to do 2560x1600 @ 120hz with 32 bit color??
Dual Link DVI can handle 1920x1200@120 Hz and the latest revision of DP handles 2560x1600@120 Hz.
They do at least sport the required bandwidth.
Where did you hear that DP handles 2560x1600 at 120Hz? The displayport.org site doesn't seem to know that, and my math in this post shows 2560x1600@120Hz bandwidth exceeds Displayport 4 pairs maximum speed.
LCD has pretty much hit the wall as far as pixel response time, so it will take a new tech to get back to CRT performance, without the size and weight limitations. I think that is what we all really want.
Dave