What is MPRT in monitors and what does it do?
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It’s a feature to try and reduce perceived ghosting in the image.
Pixels have to activate and deactivate. This process takes time just like if I told you to flip a light switch on, and then off again a moment later.
This delay can leave parts of a moving image on screen longer. The object isn’t there anymore (in a game) but the pixel is still showing it. It’s a form of motion blur.
MPRT is technology to push the perceived pixel response time to less than the refresh rate and make you see less ghosting. These are tricks like black frame insertion, an extremely fast strobing effect that makes you see less blur.
It’s a feature to try and reduce perceived ghosting in the image.
Pixels have to activate and deactivate. This process takes time just like if I told you to flip a light switch on, and then off again a moment later.
This delay can leave parts of a moving image on screen longer. The object isn’t there anymore (in a game) but the pixel is still showing it. It’s a form of motion blur.
MPRT is technology to push the perceived pixel response time to less than the refresh rate and make you see less ghosting. These are tricks like black frame insertion, an extremely fast strobing effect that makes you see less blur.
MPRT stands for “Motion Picture Response Time”. Essentially it measures the shortest amount of time a pixel can stay on for. So if a pixel is black, and flashes white for a single frame, how long was the pixel actually on for.
If you have a 60fps monitor, the *minimum* possible MPRT will be 16.7 milliseconds (1/60th of a second), but the time it takes for the pixel to actually turn on and then turn off again will make the MPRT a little longer.
What this means is that a higher refresh rate will typically give you a lower MPRT, but there are other factors, such as the quality of the monitor.
There are other measures of the responsiveness of a monitor, such as latency and GtG (grey to grey), which taken together will let you know what to expect when watching a movie or playing a video game.
A high MPRT and GtG (both measures of the time it takes for a pixel to change colour) will mean that fast moving objects will appear blurry or fuzzy, even if the refresh rate is high.
If you’re shopping for a gaming monitor, focus on framerate and latency first, but if you have a decent budget, looking for a low GtG and MPRT might be useful.
For movies and graphic design, colour accuracy and contrast are typically more important.
Edit: the other comment is correct that some monitors include tricks to improve the perceived MPRT and GtG. For instance, if a pixel is supposed to go from 20% to 60% brightness, the monitor might send a 100% signal for a brief moment to make the pixel get to 60% quicker. This means that two monitors from different brands might use the same panel, but one of them might be more responsive because it includes this kind of trick.
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