Vegas LED Screens - LED Displays & LED Signs

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refresh rate

What is the refresh rate for LED screens?

The refresh rate of a LED screen is the number of times in a second that the LED screen hardware draws the data. This is distinct from the measure of frame rate in that the refresh rate for LED screens includes the repeated drawing of identical frames, while frame rate measures how often a video source can feed an entire frame of new data to a display.

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A LED display screen is a full digital equipment which is driven by the impulse current. The Gray-scale and Brightness is realized by PWM (pulse-width-modulation) and the illumination of a LED is a pulse-type. When the frequency of pulse repeating is not fast enough, the human sight would feel twinkling.

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