The refresh rate of an LED Video Wall is the number of times in a second that the LED screen hardware draws the data. All of our screens at Video Walls 4 Less are of the best quality, and all look the same to the naked eye. However, if your screen is used as a backdrop and being recorder for video, you may see some discrepancies on camera. You can curb that drastically by going to a higher refresh rate like our Sapphire Series – 3800hz.