... industrial level Samsung DID LCD splicing screen, 450 lumen high brightness, 3000:1 contrast ratio; 10000K color ProjectParameterSpecificationGD-460PCDiagonal ... , 720P, 1080I, 1080PField frequency50HZ, 60HZ, 70HZ, 75HZVideo SystemPAL / NTSCComposite video input / output31 Road (BNC × 1) Road (BNC × 3) input ... installation), wall-mounted, ceiling-mounted, desktop stand way high definition LCD display screen