DSE 2019: NEC Display Demos Mosaic Video Wall Using EX241UN and V984Q Displays March 29, 2019 | Home / March 29, 2019 rave-video / DSE 2019: NEC Display Demos Mosaic Video Wall Using EX241UN and V984Q Displays DSE 2019: NEC Display Demos Mosaic Video Wall Using EX241UN and V984Q Displays