Gamers : strict 0 input lag monitors

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halcy

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Nov 9, 2006
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Are there any other TFT displays that have zero input lag (i.e. processing delay, not including lcd module reactivity speed), other than:

1. Iiyama ProLite E2201W 22" (TN, Samsung panel LTM220M2, lottery??)
http://www.lesnumeriques.com/article-312-2236-50.html

2. Acer P223W 22" (TN, panel lottery??)
http://www.lesnumeriques.com/article-312-2495-38.html

Format: Maker model size (panel type, panel mfg, panel changes within model)

Measurements:
http://tinyurl.com/26kb6x

Let's restrict discussion to size 22" or higher. And input lag should be based on proven measurement data, not hearsay or "I don't feel any delay" feelings.

Any other alternatives?
 
That Planar 26" should be on the list. I think El Jefe has one, and I believe he or ToastyX (spelling?) has some pics.

If it wasn't freaking $1k, I woulda bought it already.
 
I put the Planar in the "no significant lag" category, as in the lag not including the response time is less than 5 ms. The Apple displays have no significant lag either.

I seriously doubt those 0 ms results are accurate. As far as I know, he uses a single timer and clone mode, which is good for getting an estimate, but it's not exact. The problem with using a single timer is you have no idea where the LCD is refreshing, which leads to different results depending on when you happen to take the picture. The problem with clone mode is both monitors are not guaranteed to update at the same time, which can skew the results.

To get truly accurate results, you need to use a splitter and a vsynced timer duplicated on various parts of the screen or some other method to determine where the LCD is refreshing when the picture is taken. That will give you much more consistent results and a better idea of how much lag there really is, but nobody else seems to have done that but me.

I tested the Planar against a CRT using a VGA splitter, and you can see the LCD is always behind the CRT by the same amount:

http://www.toastyx.net/planar-lag-10.jpg
http://www.toastyx.net/planar-lag-11.jpg
http://www.toastyx.net/planar-lag-12.jpg

I also did the same test against a 23" Apple Cinema Display with a DVI splitter, and the transitions matched almost perfectly:

http://www.toastyx.net/apple-planar-lag-1.jpg
http://www.toastyx.net/apple-planar-lag-2.jpg
http://www.toastyx.net/apple-planar-lag-3.jpg

I also tested the 23" Apple against an EIZO HD2441W using a DVI splitter, and the EIZO was always exactly two frames behind the Apple:

http://www.toastyx.net/hd2441w/eizo-apple-lag-1.jpg
http://www.toastyx.net/hd2441w/eizo-apple-lag-2.jpg

Those are the only tests I've done with the timer duplicated at the top and bottom. I don't consider single-timer tests accurate anymore.

The problem is I did those tests on a Mac with a custom timer I made in Quartz Composer, and I don't know of anything like that for Windows.
 
LG L227WT (LG Philips Panel, 2ms, 5.5ms T_fall+T_rise/b&w) was measured by a user @ prad forums: input lag seems to be c. 0-8ms, so on par with Samsung 226BW (with S panel). So not quite zero lag, but quite close.
 
halcy said:
LG L227WT (LG Philips Panel, 2ms, 5.5ms T_fall+T_rise/b&w) was measured by a user @ prad forums: input lag seems to be c. 0-8ms, so on par with Samsung 226BW (with S panel). So not quite zero lag, but quite close.
Click to expand...

In Italy we haven't this monitor, we just have the new LG M228wa, do you think they've the same panel+electronic?
 
Version_3 said:
at first I thought swat 4, but now, looking at the guys in the bottom left, is it Team Fortress?
Click to expand...

It looks like a made up game screen to me. Those things in the bottom left look like WoW unit frames lol...
 
ToastyX said:
I put the Planar in the "no significant lag" category, as in the lag not including the response time is less than 5 ms. The Apple displays have no significant lag either.

I seriously doubt those 0 ms results are accurate. As far as I know, he uses a single timer and clone mode, which is good for getting an estimate, but it's not exact. The problem with using a single timer is you have no idea where the LCD is refreshing, which leads to different results depending on when you happen to take the picture. The problem with clone mode is both monitors are not guaranteed to update at the same time, which can skew the results.

To get truly accurate results, you need to use a splitter and a vsynced timer duplicated on various parts of the screen or some other method to determine where the LCD is refreshing when the picture is taken. That will give you much more consistent results and a better idea of how much lag there really is, but nobody else seems to have done that but me.

I tested the Planar against a CRT using a VGA splitter, and you can see the LCD is always behind the CRT by the same amount:

http://www.toastyx.net/planar-lag-10.jpg
http://www.toastyx.net/planar-lag-11.jpg
http://www.toastyx.net/planar-lag-12.jpg

I also did the same test against a 23" Apple Cinema Display with a DVI splitter, and the transitions matched almost perfectly:

http://www.toastyx.net/apple-planar-lag-1.jpg
http://www.toastyx.net/apple-planar-lag-2.jpg
http://www.toastyx.net/apple-planar-lag-3.jpg

I also tested the 23" Apple against an EIZO HD2441W using a DVI splitter, and the EIZO was always exactly two frames behind the Apple:

http://www.toastyx.net/hd2441w/eizo-apple-lag-1.jpg
http://www.toastyx.net/hd2441w/eizo-apple-lag-2.jpg

Those are the only tests I've done with the timer duplicated at the top and bottom. I don't consider single-timer tests accurate anymore.

The problem is I did those tests on a Mac with a custom timer I made in Quartz Composer, and I don't know of anything like that for Windows.
Click to expand...

The Apple results surprised me, I was expecting more input lag there. Have you done similar tests with the 2490WUXi? I don't notice anything when I'm playing fast twitchy games but I'd love to see a test like that anyway if you have one.
 
Sorry for bumping an old topic, but better than making a new one.

I'm sure there is a number of models that could be added to this list now. However, ToastyX was right that there are likely no true 0ms LCDs.I think anything under 10ms should qualify as reasonably negligible, though.

Now with that in mind, how about 120Hz LCDs that qualify?
 
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