Product Description: 55-inch Samsung high-definition LCD splicing screen Samsung Introduces Ultra Narrow seamless screen the stitching distance of only 5.3mm, widely used in government agencies, science and technology, culture, education, military, medical, surveillance, monitoring, web conferencing , electricity, telecommunications, transportation, public security, the military, the application of a wide outdoor machine more automatic diagnosis function, can determine the level of internal temperature, while the to start fan cooling or internal heating. Long life, stable operation, no burns, injuries, and low maintenance costs. Samsung's unique DID LCD, 3000:1 contrast ratio; 10000K color temperature; designed for video display design, high brightness and high-definition, even in sunlight, still perfect display. Input and output interface, VGA, HDMI, YPbPr, AV interface terminals can be connected to the computer and video equipment. Model DWY-550S splicing gap 5.5mm (top left: 1.8mm lower right: 3.7mm) screen effective display the range 1209.6 (H) x 680.4 (V) LCD splicing combinations of any row × arbitrary column screen ratio 16: 9 resolution 1920x1080 ( direct type backlight Full HD) LED standard colors 16.7 M maximum color value Full Color Screen Type DID TFT-LCD brightness of 700 cd / m2 Contrast 4000:1 http://www.3566t.com/sell/vdinklong/2729247.html http :/ / www.35667.com/ response time of 8 ms signal amplitude 75Ω 1Vp-p VIDEO input signal AV / VGA / YPbPr / DVI / HDMI video input interface 2HDMI \ 1VGA \ 1BNC communication interface RS232 color video mode PAL / NTSC YPbPr signal format video input 1920 × 1080p / 60Hz 1920 x 1080i / 50Hz (60Hz) 1280 × 720p / 60Hz 640 × 480p / 60Hz Viewing Angle 178 ° Power Input AC 100 ~ 240V, 50/60Hz Power Consumption 240W display unit size 1215.3 (H Screen net weight 30 kg) × 686.1 (V) unit