Product Details Product Name 42-inch LED-backlit LCD screen stand-alone model HAT420-L03 LCD screen size 42-inch LCD screen aspect ratio of about 16:9 Viewing Angle 178 ° / up and down 178 ° Brightness 1500cd / ㎡ Contrast Ratio 1400:1 distinguish rate 1920 * 1080P color 16.7M pixels: 0.21 * 0.62 response time of 6.5ms stand-alone power consumption 250W the LCD life of 80,000 hours LCD display area mm 938.2mm × 531.0 mm wide Operating humidity 10% -90% Operating Temperature 0 ° C - 50 ° Technical Features: 1, more green and environmentally friendly products, double the energy efficiency of new energy application, new saturated color display 4, the speed of the liquid crystal response time high twice the life of 6, without any safety worries of low pressure 7, good seismic performance of ultra-stability, ultra-thin smart lightweight structures of the four core technology 1) intelligent dog 2) well-being of methyl 3) Polar Blue 4) security core five features, intelligent environment photoreceptor function automatically according to the ambient brightness adjusted to show the best results of the LCD screen; too high low temperature protection function: low temperatures with automatic temperature adjustment function avoid frostbite LCD screen does not work; high temperature over LCD normal working limit backlight automatically turns off when the temperature returns The normal operating temperature is automatically turned on in order to achieve the protective effect; LED pre-heating function LED unique low temperature with LCD screen to normal temperature work boot; 4, high-performance ultra-low power white LED backlight module of Blu-ray technology bring LCD high-performance super-stable state; 5, low-voltage driver circuit design of low voltage constant current drive system, bring equipment excellent safety performance.