SpecificationsDS-D5022QE-B Display Type LED Backlit TFT LCD Screen Size 21.5",Pixel Pitch (H x V) 0.248 mm x 0.248 mm,Maximum Resolution 1920 x 1080 Brightness 250 cd/m2 (typical),Contrast 1000:1 Response Time 5 ms ,Color 16.7 M Viewing Angle Horizontal 170°,vertical 160°,Interface, VGA 1 HDMI 1 Mou..