This is also called the vertical refresh rate, or the vertical scan frequency. It is a monitor term that describes how long it takes to draw an entire screenful of lines, from top to bottom. Monitors are designed for specific vertical and horizontal frequencies. Vertical frequency is a key factor in image flicker. Given a low enough vertical frequency (53 Hz, for example) nearly everyone will see a flicker because the screen isn't rewritten quickly enough. A high vertical frequency (70 Hz on a 14-inch monitor) will eliminate the flicker for most people.
Number of [ TV] frames transmitted per second.
Indicates, how many frames per second can be displayed (refresh rate, in Hz).
This frequency is measured in Hz. It gives the number of images that can be triggered per second. Also called bandwidth. Data video projectors use their own vertical frequency. The details given in the brochures therefore refer to the signal frequencies of computers/video sources that can be converted by the projector.
The number of times per second that a monitor can draw all the lines on an entire screen. A higher vertical frequency or refresh rate will reduce flicker, helping to reduce user eyestrain and stress.
The screen must be redrawn several times per second in order to created and display an image. The frequency of this repetition per second is called Vertical Frequency or Refresh Rate. Unit: Hz. Example: If the same light repeats itself 60 times per second, this is regarded as 60 Hz. In this case, flickering of the screen can be detected. To avoid this problem, there is a Flicker-free Mode using a vertical frequency over 70 Hz.
see Refresh rate Vertical Market ASP, 3.36
The frequency at which images are generated. Vertical frequencies vary amongst sources. Also called vertical scan rate.