Assertion: lcd's refresh rate | /r/HasProperty | calculated since about 5% of the time
Facets:
value: from the horizontal scan rate
type: OTHER
value: by dividing the scanning frequency
type: MANNER
Source sentences:
text: The refresh rate can be calculated from the horizontal scan rate by dividing the scanning frequency by the number of horizontal lines multiplied by 1.05 (since about 5% of the time it takes to scan the screen is spent moving the electron beam back to the top[citation needed]).