Response Times
A topic that usually comes up as a problem with LCDs is their slower response times relative to CRTs. While there's no doubt that even the best LCDs still exhibit some slight pixel smearing, the vast majority of users are okay with the level of performance we have available now. We also find it extremely difficult to tell the difference between various LCDs with response times ranging from as low as 2ms all the way up to 16ms. As with other specifications, there appears to be marketing influence on the final reported numbers.
To try to illustrate response times, we use our camera set to 1/80s shutter speed and a 2.5 F-stop at ISO-400. However, taking a picture of a display using a high shutter speed still isn't the same as looking at the display in person. LCDs run at a refresh rate of 60 Hz, and we use a shutter speed of 1/80s, so the net result is that we will capture an image of the display as it appears over a short period as opposed to an instantaneous look at the state of the various pixels. Image retention on your retinas also occurs, so even if you can eliminate the smearing effect at the display level you won't necessarily "see" a perfectly crisp transition. Then you have to consider some of the latest games are adding motion blur back in using DirectX 9/10 in order to make things look more realistic... but in that case, it's an artistic effect rather than a technological defect, right?
Links to previous response time images are below, taken during the Game 1 demo in 3DMark03.
Acer AL2216W #1 Acer AL2216W #2
Dell 2405FPW #1 Dell 2405FPW #2
Dell 2707WFP #1 Dell 2707WFP #2
Dell 3007WFP #1 Dell 3007WFP #2
Gateway FPD2485W
HP LP3065 #1 HP LP3065 #2
HP w2207
HP w2408
 MPA Off |
 MPA On |
Samsung advertises a 5 ms gray-to-gray (GTG) response time, although it's not entirely clear whether that figure is with MPA enabled or disabled. We tested response times and configurations, and we would be hard-pressed to tell the difference. In our best-case images, the 245T does appear to have slightly better response times than other 24" LCDs that we've reviewed, but the actual difference is probably less than a couple milliseconds. We're not sure about the rest of you, but our eyes just aren't sensitive enough to tell the difference between 6/1000s and 8/1000s, even if the first is theoretically 33% less time.
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nubie - Thursday, February 7, 2008 - link
In most proper drivers you can select a mode that has 1:1. In the nVidia classic panel (I only use the classic panel, google sedonadisable if you can't find yours.)Use DVI or HDMI, and go to device adjustments, there is a setting called "centered output", use this to send black pixels to fill the digital signal until the pixel ratio is 1:1.
I ran into a problem that wouldn't allow me to run custom resolutions, this is the fix:
http://wikitechia.org/wiki/The_custom_resolution_c...">http://wikitechia.org/wiki/The_custom_resolution_c...
I agree that scaling technology needs serious work, 16:10 is not 16:9, and 1388x768 is not 720p. Add to that the fact that even if you can get the native res of some panels to be sent by the PC, the display still stretches and overscans it, that is bad.
Doesn't the Xbox360 have support for native panel resolutions such as 1280x1024 as part of the VGA output? Doesn't this extend to the HDMI output? I would really like to know what support there is for native panel resolutions on consoles.
Every PS3 and Xbox360 I have ever seen has had mediocre picture quality, and I sincerely hope that it is a problem on the display side (in-store displays only).
JarredWalton - Thursday, February 7, 2008 - link
I don't think consoles support PC resolutions. They are usually HDTV/TV resolutions, so you get 640x480 on the old stuff, and 720p or 1080i (or maybe 1080p?) on new stuff. Of course, some titles use a lower resolution like 1024x576 or something and stretch that to 720p/1080p for performance reasons.The 245T will accept other resolutions; the problem is that your only options are "fill the whole screen (and aspect ratio be damned)" or "fill a 4:3 area (again, forget about the actual AR)". With PC connections, you're fine if you use the driver to adjust the stretch options.
Unless I'm severely mistaken, you don't get that functionality with consoles. Or DVD/Blu-ray/HD-DVD players.
nubie - Thursday, February 7, 2008 - link
WRONG!!! Information available as of 2005:http://hardware.teamxbox.com/reviews/xbox-360/40/X...">http://hardware.teamxbox.com/reviews/xbox-360/40/X...
1024x768
1280x720
1280x768
1280x1024
1360x768
I was simply curious as to whether recent updates to the Xbox360 firmware had made it MORE compatible.
JarredWalton - Thursday, February 7, 2008 - link
Interesting - didn't know consoles supported other output resolutions... though it seems like it would be game dependent, right? (I'm pretty much a PC-only gamer, so I haven't owned a console since the N64.)If you can output 1360x768, you should be able to get a 16:10 AR that will fit with this display properly. That's what I would go for, anyway.
JarredWalton - Thursday, February 7, 2008 - link
Playing DVDs, you can usually control this with your player software, and in fact you can control this with NVIDIA and AMD graphics cards (though I'd give the edge to NVIDIA here) under Windows. The problem is what happens when you hook up something like a game console, or some other device that doesn't do internal scaling. Then you're stuck with what the LCD firmware provides, and in this case it falls short.I'd think Samsung could release updated firmware to address this issue. Will they, and if so can you apply it to the initial models? Probably not, but they may prove me wrong.
SilthDraeth - Thursday, February 7, 2008 - link
Click on about above the Forums link, then on the next page, click on intellitext and then choose the option to turn it off.Problem solved.
Welshtrog - Thursday, February 7, 2008 - link
I have tried about 10 times and the B***** thing will NOT turn offGTMan - Friday, February 8, 2008 - link
You probably have to enable cookies.Or get a good hosts (google "hosts") file to block lots of ads. There is also a little program called Homer which will replace the blanked ads with a color gradation.
Welshtrog - Thursday, February 7, 2008 - link
I have tried about 10 times ant the B***** thing will NOT turn offAmishElvis - Thursday, February 7, 2008 - link
Those drop down ads are a deal breaker for me. Get rid of them or I will find another tech review site.