Liquid crystal molecules tend to rotate more smoothly in the horizontal direction than the vertical direction. Since SFT LCDs rotate liquid crystal molecules horizontally, their response time is relatively fast, regardless of the magnitude of shift in gray scale. Moving images are also displayed very clearly because there is no sudden drop in response time between intermediate gray scales. There are no other technologies where liquid crystal molecules rotate vertically.

Spec Chart Response Time
(sum of yellow-circled figures)

Although this is one indicator of LCD response time, it does not include the response time between intermediate gray scales.

Response Time Between Intermediate Gray Scales
(shown by the orange circle)

Since most moving images consist primarily of changes between intermediate gray scales (even when the response time in the specifications is fast), if theresponse time between intermediate gray scales is slow, then the images may appear smeared.