Diagonal Size 55" Type IPS Resolution 1920*1080 (Full HD) Pixel Pitch(mm) 0.63mm(H) * 0.63mm(V) Active Display Area(mm) 1209.6 * 680.4mm Brightness(Typ.) 700 nit Contrast Ratio 1100:1 Viewing Angle(H/V) 178/178 Response Time(G-to-G) 8ms Display Colors 8 bit - 16.7M Color Gamut 72% Operation Hour 24/7 Haze 28% Dynamic C/R 30,000:1 H-Scanning Frequency 57.3kHz ~ 70kHz V-Scanning Frequency 48Hz ~ 75Hz Maximum Pixel Frequency 78MHz Speaker Type N/A Input RGB DVI-D, Display Port 1.2 Video HDMI 2.0 (2) HDCP HDCP 2.2 Audio Stereo mini Jack USB Only F/W upgrade Output RGB DP1.2(Loop-out) Audio Stereo mini Jack External Control RS232C(in/out), RJ45 External Sensor Detachable type(IR)