InfoComm 2018: ROE Visual Launches Sapphire 1.5mm LED Display with New Configuration SystemJune 13, 2018 | Home / June 13, 2018 rave-video / InfoComm 2018: ROE Visual Launches Sapphire 1.5mm LED Display with New Configuration System InfoComm 2018: ROE Visual Launches Sapphire 1.5mm LED Display with New Configuration System