1.goverment support 2.LCD,LED PANEL 3.high quality,lowest price 4.CE,FCC,ROHS certificate 5.largest factory FUNCTIONS L-4001aDisplay parametersSCREEN SIZE(INCH)40 INCHSCREEN RATIO16:9VIEWING ANGLE(LEVEL/VERTICAL)178°/178° LIGHT1000cd/M²PICTURECOLOR16.7BILLION COLORSDISPLAY RESOLUTION1920*1080 HDV(1080P) RESPONSE SPEED4msCONTRAST RATIO10000:1DISPLAY MODE16:9BACKLIGHTCCFL cold cathode fluorescent ...