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A power user put his Big fat tv monitor (his CRT) next to his flat screen. You can see some delay on the LCD!
The definition of lag:
Input lag is a phenomenon associated with some types of LCD displays that refers to latency, or lag measured by the difference between the time a signal is input into a display and the time it is shown by the display. This lag time has been measured as high as 65ms, or the equivalent of 3-4 frames on a 60Hz display.
This is not the only cause of lag, for instance, network transmit times could also cause lag.
Also, this is NOT the same thing as "LCD response time" Response time measures the time for a gray pixel to turn black, which has nothing to do with the signal input into the display and the delay there. ;)
http://en.wikipedia.org/wiki/Input_lag
http://www.youtube.com/watch?v=hVXTeGTp5tw&NR
The definition of lag:
Input lag is a phenomenon associated with some types of LCD displays that refers to latency, or lag measured by the difference between the time a signal is input into a display and the time it is shown by the display. This lag time has been measured as high as 65ms, or the equivalent of 3-4 frames on a 60Hz display.
This is not the only cause of lag, for instance, network transmit times could also cause lag.
Also, this is NOT the same thing as "LCD response time" Response time measures the time for a gray pixel to turn black, which has nothing to do with the signal input into the display and the delay there. ;)
http://en.wikipedia.org/wiki/Input_lag
http://www.youtube.com/watch?v=hVXTeGTp5tw&NR
Dog cries in sleep... Freakin' CUTE!
i actually prefer the CRT image (on a flatscreen CRT design), because the grays and blacks are better defined. most LCD's are not true 32/24-bit color, due to the advantages of pixel dithering in LCD's.
but because i go to a lot of LAN parties, the LCD is obviously more advantageous...
It's also highly possible that in this comparison he used some things known to cause such delay. Either using a vga cable to connect the gfx card, or running it at a non-native resolution requiring the LCD to rescale each frame to fit the native LCD resolution. Both of these introduce lag, but there could be any number of other components processing the signal to get it onto the display that could also introduce lag.
The speed of light in copper is ~200,000Km/sec.
I vote for the non-native resolution proposal. Some sets may by default do some additional scaling/smoothing between frames--at least on my DLP, you can turn that off with what is called "GAME" mode.
"It's normal for LCD monitors, whether you're using DVI or VGA input, to have some tens of milliseconds of "input lag", as they buffer the incoming data in their panel driver hardware. This doesn't make the image blur, but it does make LCDs that much slower than a pure analogue monitor to get an image onto the screen. This can affect audio/video sync in movie playback, and make games feel slightly more sluggish too, but not everybody can notice the difference. I'm pretty good at spotting, and being annoyed by, minor lip-sync problems in video; most people don't seem to notice errors below 100ms."
quoted from http://www.dansdata.com/askdan00009.htm