75-inch conference smart whiteboard

Screen size 75" Backlight type D-LED Resolution 3840*2160 Brightness ≥350cd/m² Screen contrast 5000:1 Response time 6ms Pixel pitch 0.42975×0.42975 mm (H×V) mm Frame rate 60 Hz Viewing angle 178°(H) / 178°(V) Color saturation (x% NTSC) 72 % Viewable area 1650.24×928.26 mm (H×V) mm Color 1.07B(8bit) Lifespan 30,000 hrs