Samsung LTM-1555 15-Inch LCD Flat-Panel HDTV-Ready TV HDTV monitor accepts 1080i, 480P, or 720P video signals from DTV set-top boxes, DVD players, and satellite receivers XGA resolution (1024 x 768) Display capability exceeds 720p PC picture-in-picture shows both PC desktop and 1 video source 400:1 contrast ratio; 450 cd/m2 brightness level; 60,000-hour lamp life