33 How to adjust your monitor
without ghosting. The Response Time quoted for many LCD monitors is specific to transitions
from black to white and back again, it does not specify the time required to switch between the
many gray levels or colors that make up an image.
Gray to Gray or GTG Response Time: “Real world” video content contains a combination of
grayscale images. It generally takes longer for a pixel to transition to an intermediate level of
intensity (i.e. a gray or color level) than it does for it to turn completely black or completely white.
For example the “Gray to Gray response time” of an LCD panel may generally be 30 to 40 ms while
the “Response Time” is 12 ms. BenQ's AMA technology greatly reduces the GTG response time so
moving parts of the image are clearer, no matter what the image content is. With Advanced Motion
Acceleration (AMA), the average GTG response time can be as low as 2 ms.
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