What is Refresh Rate?

Last Update date : 2013.06.27

Refresh rate, also referred to as response time, is the amount of time it takes a pixel to go from active to inactive. This can be compared to the shutter speed of a camera. The lower the refresh rate the less flicker, lag, and artifacting will be seen on the screen

Refresh rate is distinctly different from the measure of frame rate:

  • Refresh Rate: Measures the speed of the individual pixels. How fast can they go from active to inactive (closed to open)
  • Frame Rate: Measures how often a video source can feed an entire frame of new data to the TV.

For example: 24 frames per second (fps) on movies, 30 fps for NTSC and ATSC broadcasts.

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