NEC E554 55-Inch 1080p 60Hz LED TV Panel Technology A-MVA Viewable Image Size 55" Native Resolution 1920 x 1080 Backlight Type LED Edge-lit Brightness (typical) 350cd/m2 Brightness (maximum) 350cd/m2 Contrast Ratio (typical) 4000:1 Viewing Angle 178 Degree Vert., 178 Degree Hor. (89U/89D/89L/89R) @ CR&gt;10 Response Time(Gray to Gray) 6.5ms Refresh Rate 120Hz Aspect Ratio 16:9