DSE 2015: BenQ Shows the World’s First Perpendicular, Dual Sided Wall Mounted Display March 12, 2015 | Home / March 12, 2015 rave-video / DSE 2015: BenQ Shows the World’s First Perpendicular, Dual Sided Wall Mounted Display DSE 2015: BenQ Shows the World’s First Perpendicular, Dual Sided Wall Mounted Display