Refresh rate
Videos
In reference to terminology originating with cathode-ray tubes, the refresh rate, also known as vertical refresh rate, vertical scan rate or vertical frequency, is the number of times per second that
Electron beam in the process of refreshing an image on a CRT
Interlaced video
Videos
Interlaced video is a technique for doubling the perceived frame rate of a video display without consuming extra bandwidth. The interlaced signal contains two fields of a video frame captured consecut
Refresh rate
…expense of introducing unsmooth playback in the form of telecine judder. Similar to some computer monitors and some DVDs, analog television systems use interlace, which decreases the apparent flicker by painting first the odd lines and then the even lines (these are known as fields). This doubles the refresh…
When someone watches interlaced video on a progressive monitor with poor (or no) deinterlacing, they can see "combing" in movement between two fields of one frame.