LG 75UM3E Owner's Manual page 33

NOTE
• Vertical frequency: The product display functions by the screen image changing dozens of times every second like a
fluorescent lamp. The vertical frequency or refresh rate is the number of image displays per second. The unit is Hz.
• Horizontal frequency: The horizontal interval is the time taken to display one horizontal line. When 1 is divided by
the horizontal interval, the number of horizontal lines displayed every second can be tabulated as the horizontal
frequency. The unit is kHz.
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