จออินเทอร์แอคทีฟ LG Interactive Digital Board Interactive+OPS pcs 75 นิ้ว รายละเอียดสินค้า Screen Size75" Panel TechnologyIPS Back Light TypeDirect Aspect Ratio16 : 9 Native Resolution3,840 × 2,160 (UHD) Refresh Rate60 Hz Brightness440 nit (w/o Glass Max.), 390 nit (w/o Glass Typ.) Contrast Ratio1,200 : 1 Color gamutNTSC 72% Viewing Angle (H x V)178 × 178 Color Depth10 bit (8 bit + FRC) Response Time8 ms Surface Treatment (Haze)25% Lifetime50,000hrs (L30) Operation Hours (Hours / Days)16 / 7 Portrait / LandscapeNo / Yes Interactive Digital Board 3 years onsite Interactive Digital Board + OPS 3 years onsite for IDB 1 years for OPS