Dell D1918H Screen Size 18.5 inch (47 cm) HD Ready (1366 X 768) TN Panel. It has Feature of Connectivity 1 VGA Port, 1 HDMI Port, Aspect Ratio 16:9, Brightness (Typical): 200 cd/m².Refresh Rate: 60 Hz, Response Time 5ms. Viewing Angle 90 degree horizontal 65 degree vertical. Flicker Free Technology.