Embedded Metal Frame 21.5" Touch Screen Monitor Open Frame LCD Advertising Player Screen

17" 12v usb powered vga lcd display touch screen open frame monitor Model No.DD170BR4001Frame materialMetal caseColorBlack  (  white for OEM )Screen ratio4:3 Ratio 10.1″Active Matrix TFT LCD Native Resolution1280*1024Brightness400cd/m2Contrast ratio800:1Frequency30-80 KHz horizontal, 55-75 Hz VerticalResponse time≤ 5mViewing Angle(H) 170 °( 85°/85°);  (V) 160 ° (70°/90°)Input Video FormatAnalog RGB, CVBS NTSC/PAL (AUTO)Touch screen InterfaceSerial COM(RS232) or USBResistive 4-wire touch screenTouch Pen Hitting Life>= 1milions timesVideo Singal InputAV, VGA, HDMI, BNC, USBOperating Temperature-20°C-60°C , Storage:-30°C-70°COperating Humidity  10%-90%,Storage 5%-90%Power consumption