Several tools for observing screen pixels’ transition times

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One of the main parameters in choosing a monitor is the transition times of the pixels from one color to another. The subject was and is intensively addressed, but now we have the opportunity to easily refer to a measuring tool, or more precisely to a common scenario: the tests offered by blurbusters.

Blurbusters are distinguished by the popularization of important terminologies for measuring the “clarity of the moving image”, which of course depends on the technology of the screen used. At the moment these are not of interest but only the knowledge of the tools made available by them.

An example would be the famous “testufo” test:


On the main page we will see 3 rows of “ships”, demonstrating the importance of image refresh rate, but more precisely the importance of the amount of information relative to time.

If we insist and continue exploring the platform, we will reach the following scenario:

This is most often used to demonstrate a monitor’s ability to display objects “moving at high speeds” without blurring them or even making them invisible. Below you can see an example of captures made on a 240hz monitor with an inadequate camera, but which was still able to illustrate the level of clarity of the image depending on the settings for the response times (transition) of pixels. The first image represents the “character” when it is not in motion, respectively the 3 settings for response times (slow, medium, fast).

Fortunately we have access to a far superior test, namely the one with moving images, specifically for moving text:

Here we can really observe how many devices become unable to clearly display text, sometimes requiring the implementation of “backlight strobing” technology.

If we want to be sure that the desired/current monitor can properly display the moving images, we can re-run the test with the image in “portrait” mode (right click on the desktop – display settings – orientation) to make sure that the transition times keep their properties for movements on both the horizontal and “vertical” axis of the screen.

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