With so many movie enthusiasts and gamers out there the demand for multimedia LCDs is stronger than ever. This has meant that monitor manufacturers have had to rise to the challenge of producing LCDs that can rival the trusty old CRT – the firm favourite among these users up until recently.
I say recently because efforts have been made to make LCDs a true alternative to the traditional CRT-based television and PC monitor. One of the key stumbling blocks in matching an LCD’s performance to that of a CRT’s has been liquid crystal response time. Without going into too much detail a slow response time (considered to be around 30ms or more) can lead to what is commonly known as “motion smearing”, “after images” or a “blurring effect”. This is because liquid crystals tend to respond (twist) slowly to the applied electrical field that is switched in order to turn pixels off and on. Of course there’s a little more to it than that but in essence this twisting and switching takes longer than the time needed to display a single frame of, for instance, a movie sequence. By the time the next frame is displayed the liquid crystals can still be in transitional state thereby leaving an after image from the previous frame.
_______________
Review:
Trusted Reviews
Apr 11, 2005, 07:48 AM
