Question

Whats happens to an led display if the scan rate is 10 hz?

Answer 1

The scan rate refers to the to the number of frames a television can show per second. It's measured in Hertz, which is a unit of frequency. A TV with a 60Hz refresh rate can display 60 images per second.

As much as manufacturers would like you to believe that a 120Hz TV provides an important advantage over 60Hz models, the refresh rate itself does not inherently improve the motion. In theory, content playing at twice the refresh rate should have half the motion blur. The issue is that almost nobody uses a 120Hz source.

A 60 fps video played on a 120Hz TV will look no different than on a 60Hz TV. In a case like this, the TV either adjusts itself to match the refresh rate of the source, which effectively turns it into a 60Hz TV, or it simply doubles every frame.