OIC Korea is a true manufacturer of LCD CCTV monitors. The OIC Korea monitors are true Commercial Grade with FCC Class A Certification – Built to Run 24 x 7 x 365 continuously. Our monitors are designed, engineered and manufactured with CCTV PCB boards and circuitry making these the LCD solution for your security surveillance.

R4K55NNU (4K Video Wall Monitor)
Spread 1 image across multiple monitors using 1 video source
Display Port In / Out (VGA in)
Video Wall Processor built in
Remote Display Management
Landscape and Portrait
HDMI & DVI-D In / Out
PIP / PBP / QUAD Displays
RS-232C In / Out for pc / server control
Control panel Lock (panel or IR)
All metal chassis
Auto power recovery / Auto pixel shift
VESA standard hole patterns


The R4K UHD Series of LCD Displays are the perfect solution for ultra-high definition video walls. Equipped with a standalone 3840 x 2160 resolution panel and the ability to take a single video source and displaying across the entire Video Wall. it is an excellent choice for command & control centers, corporate, AV and digital signage applications.


R4K55NNU (4K Video Wall Monitor)
Display Screen Size 55 Inch
Bezel Width 18.8 / 21.4 mm
Max. Resolution 3840 x 2160 @ 30Hz
Pixel Pitch 0.315 x 0.315mm
Brightness 500cd/m²
Contrast Ratio 1100 : 1
Aspect Ratio 16 : 9
Viewing Angle (H/V) 178° / 178°
Display Color 1.07 Billion
Response Time < 8ms (Gray to Gray)
Video System NTSC / PAL
Electrical Ratings AC 100 ~ 240V (50/60Hz)
Interface Display Port In / Out 1 / 1
HDMI In / Out 1 / 1
DVI In / Out 1 / 1
RS-232 In / Out 1 / 1
Audio Out (3.5mm) 1
VGA In (15 Pin D-Sub) 1
Transmitter Remote Control Yes
Audio Built-in Speakers Yes (10W x 2)
Features Multi Display Function Yes (PIP / PBP / QUAD)
Temperature Sensor Yes (Option)
De-Interlace Yes
Noise Reduction Yes
One Image Up to 15 x 15 Yes
Auto Fan Control System Yes (Option)
Auto Pixel Shift Yes
Auto Source Switching Yes
Edge Setting (H / V) Yes
Advance Auto Power Recovery Yes
Multi Language English, Spanish, French, German
RS-232C Control Monitor OSD control using PC
Cabinet Color Black
Material Electro-Galvanized Steel
Warranty Part / Labor 1year / 1year
Power Electrical Ratings AC 100~240 V (50/60Hz)
Power Consumption <190W
Circumstance Operating Temperature 0 ~ 40° C / 32 ~ 104° F
Outline Dimension Dimension (Inch) 1238.0 x 708.8 x 63.1 mm
Weight 26kg (57.32 lbs)
Mounts VESA Mount Size 600 x 400mm
Video wall WSD, WES, WFS, WSR
Stand Alone WB-4780
  *Design and Specifications are subject to change without notice