Samsung 793DF User Manual (user Manual) (ver.1.0) (English) - Page 63

frequency of this repetition is called the Vertical Frequency or Refresh

Page 63 highlights

The time to scan one line connecting the right edge to the left edge of the screen horizontally is called the Horizontal Cycle and the inverse number of the Horizontal Cycle is called the Horizontal Frequency. Unit: kHz Vertical Frequency Like a fluorescent lamp, the screen has to repeat the same image many times per second to display an image to the user. The frequency of this repetition is called the Vertical Frequency or Refresh Rate. Unit: Hz

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The time to scan one line connecting the right edge to the left edge of
the screen horizontally is called the Horizontal Cycle and the inverse
number of the Horizontal Cycle is called the Horizontal Frequency.
Unit: kHz
Vertical Frequency
Like a fluorescent lamp, the screen has to repeat the same image
many times per second to display an image to the user. The
frequency of this repetition is called the Vertical Frequency or Refresh
Rate. Unit: Hz