The Changhong TV how? Screen contrast is not a small point?

Changhong

model LT4219FHD

screen size 42-inch screen

ratio of 16:9

screen resolution of 1920 × 1080

screen brightness 500cd/m2

contrast ratio of 1000:1

screen backlight life of 15,000 hours

visual angle (horizontal / vertical) 176 degrees / 176 degrees

color 68,700,000,000

number of input and output formats
receive PAL / NTSC / SECAM

input port HDMI interface, S-Video, AV interface, VGA interface, component video interface, USB interface

output AV output port, headphone output

other parameters
power requirements of 100-240V AC 50-60Hz

power 250W

parameters of the appearance of 1133 × 755 × 109mm