Originally posted by adambyte
Um.... Whitesaint, I think you're a bit off on the whole "refresh" thing... You see, as CRT actually shoots a picture at you at say 75Hz, or whatever..... CRTs redraw the whole screen several times per second....
The LCDs you speak of which leave a "trail" are the OLD-style LCDs.... in these LCDs (which were phased out around 1997.... not quite sure)... those LCDs had pixels that took 1/8 of a second to change color... thus the "ghosting" you speak of.
Modern LCDs (such as the ones in the new iMac.... PowerBook G3s and up, etc).... have what are called TFT screens... (forgot what TFT stands for).... and, unlike a CRT, each individual pixel of a TFT screen has its own controler, which makes it change color immediately, as soon as it gets the signal.... Modern day LCDs change instantly.... because of this, there is no refreshing. Which is why LCDs are said to be easier on the eyes. Instead of flashing at 75 Hz, there is a stable image. In effect, TFT LCD screens have the best "refresh" rates of all.