... advertising billboard, stadium LED signs, sports LED signage, rental video display, mobile digital LED display, stage & bar electronic sign, DOT matrix LED display, etc. 1. ... signal and video signal. (2) 4096 grade grey control system and the color is over 16.7 millions, and ... brightness, contrast, saturation, chroma can be adjusted by manual and sensor, whose scope is 256 grade. (3) Show all kinds ...