What does the term 'refresh rate' indicate in video displays?

The term 'refresh rate' specifically refers to the number of times per second that a video display updates its image. This measurement is crucial because a higher refresh rate can lead to smoother motion on the screen, enhancing the viewing experience, particularly in fast-paced content like video games or action movies.

When a display has a refresh rate of, for example, 60 Hz, it means it refreshes the image 60 times each second. This can reduce motion blur and make fast-moving objects appear clearer and more stable. A lower refresh rate might result in flickering or a less fluid motion, which can be noticeable, especially during fast action scenes.

The other options touch on different characteristics of video displays but do not accurately represent what refresh rate signifies; for instance, pixel duration pertains to how long each pixel maintains its illumination, power consumption relates to energy efficiency, and resolution deals with the detail level of the image displayed. However, none of these terms describe the refresh rate itself, which is distinctly about how frequently the screen updates its visual output.