ISE 2017: Vivitek Unveils NovoDS-4K 4K Digital Signage SolutionFebruary 7, 2017 | Home / February 7, 2017 rave-video / ISE 2017: Vivitek Unveils NovoDS-4K 4K Digital Signage Solution ISE 2017: Vivitek Unveils NovoDS-4K 4K Digital Signage Solution