Internal Memory : 32GB (Storage) / 4GB (RAM) Brightness (w/o Glass) : 440 nit (Max.), 390 nit (Typ.) Resolution : 3,840 × 2,160 (UHD) Multi-Touch Point : 40 Points (Max.) Screen Size 75" Panel Technology IPS Back Light Type Direct Aspect Ratio 16 : 9 Native Resolution 3,840 X 2,160 (4K UHD) Refresh Rate 60 Hz Brightness 440 nit (w/o Glass Max.), 390 nit (w/o Glass Typ.) Contrast Ratio 1,200 : 1 Color gamut NTSC 72% Viewing Angle (H x V) 178 × 178 Color Depth 10 bit (8 bit + FRC) Response Time 8 ms Surface Treatment (Haze) 25% Lifetime 50,000hrs (L30) Operation Hours (Hours / Days) 16 / 7 Portrait / Landscape No / Yes