From Manufacturer
The QX-Series 55" 4K UHD LCD Display from AG Neovo supports video at resolutions up to 3840 x 2160. It features a brightness of 450 cd/m2, a 20,000,000:1 contrast ratio, 178° viewing angles, and a 5 ms response time. There are DisplayPort, HDMI, DVI, and VGA inputs for connectivity. This display supports RS-232 and Ethernet control and has two built-in 10W speakers. It can be VESA 400 x 400mm and 400 x 200mm mounted.
Multi-screen viewer can display up to four full HD screens simultaneously from four different input sources
Durable metal housing
NeoV optical glass protects the screen from scratches and other damage
PID Command and Ctrl software
Anti-burn-in technology prevents image ghosting
Image enhancer for deinterlace and noise reduction
RS-232 and IR control support
EcoSmart sensor automatically adjusts brightness level according to ambient lighting conditions
HeatControl sensors automatically activate internal cooling fans when the temperature rises
Blue-light filter reduces eye discomfort
Black level adjustment for presenting more details in dark images
Selectable gamma curves optimize different kinds of images