Dahua 55” LS550UDM-EF FHD Video Wall Display Unit (Ultra Narrow Bezel 1.7mm).  Industrial level ADS LCD panel, suitable for continuous 24h/7 operation. Ultra-narrow 1.7mm B-to-B (Panel Bezel to Panel Bezel) design. Anti-glare panel, vivid and memorable image quality. Factory calibration technology for high colour uniformity. Built-in 3D noise reduction system and picture splicing function. Abundant interfaces HDMI, DVI, VGA, BNC, USB, supporting HDMI daisy chain. Infrared, RS232 dual mode, supporting remote control by computer. Professional thermal design to extend device lifespan. Built-in power, low energy consumption, ultra-quiet. Modular structure design, multiple installation modes. Widely used in surveillance centre, command centre, meeting room, commercial display scenes, etc.