Product Specifications Model: HLN550PB File Number: HLN20140101 Version: 2.0 Date: 2014.01.01 Appearance Photos: Machine Screen size: 55-inch (5.5mm) Display Category: TFT-LCD backlight Dimension 1215.5mm * 686.3mm * 115.8mm Packing size (two loaded) 1310mm * 225mm * 815mm Power Power Power: ≤300W Standby power consumption: ≤3W Operating voltage: 100V-240VAC 60 / 50Hz display parameters Maximum resolution: 1920 × 1080 resolution best work Rate: 1920 × 1080 @ 60Hz Pitch: 0.63mm × 0.63mm viewing angle: Horizontal 178 °, vertical 178o viewing area: 1209.6mm × 680.4mm maximum brightness: 500 cd / m2 highest contrast: 3000; 1 Response time (G to G): 8ms degree of color: 16.7M color gamut: 72% of the input and output ports HDMI input: one DVI input: a VGA input interface: 1 AV input (top row): 2 AV output (bottom row ): two USB: 1 x RS232 input (RJ45 connector) an RS232 loop out (RJ45 connector) 2 main functions using the industry's leading 3D image processing chip, make the picture more crisp and clear high resolution, high contrast, high brightness, greatly improve the image layering box built-in digital image processing, the entire screen can achieve single-screen display, full screen display, or any combination of smart features such as screen display temperature control features built high-speed USB interface, support 1080P HD video playback and HD pictures perfect factory settings mode; image control functions still function IR series, with an IR receiver to control the stitching and stitching decomposition wealth of input and output interfaces, HDMI, VGA, DVI, AV interface terminals, can be accessed by computers and a variety of video equipment Support USB2.0 interface, support U disk, mobile hard drives and other USB storage devices and software upgrades; Environmental Operating temperature: 5 ℃ ~ 40 ℃ Operating Humidity: 10% ~ 85% Storage Temperature: -20 ℃ ~ 55 ℃ Storage humidity : 5% to 95% of atmospheric pressure: 86kPa ~ 104kPa standard configuration stitching machine: a stage base: None Instructions: 1 Power cord: a wall bracket: optional certificate / Warranty Card: 1