Panasonic TH-50PX75U 50-Inch 720p Plasma HDTV 50 screen; Progressive Scan Plasma Screen with up to 10,000 - 1 contrast ratio for superior images 1366x768 native resolution delivers 720p and 1080i HDTV modes and 480i to 480p SDTV modes 16 - 9 Widescreen aspect ratio Pixel Pitch (H x V) - 0.81 x 0.81 mm Contrast Ratio - Up to 10,000 - 1