Vegas LED Screens - LED Displays & LED Signs

Sales Support: +1 (702) 967 0700


frame changing frequency

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.