The LG 55UM5N-E is a professional 55-inch 4K UHD digital signage display designed for corporate, retail, hospitality, education, transportation, and commercial environments. Combining a sharp 3840 × 2160 UHD resolution, high 500-nit brightness, integrated webOS 6.0, and extensive professional connectivity, it provides a reliable platform for digital advertising, information displays, presentations, and managed signage installations.
55-Inch 4K UHD Display
The LG 55UM5N-E delivers a native 3840 × 2160 Ultra HD resolution, providing exceptional detail and clarity for text, graphics, promotional content, presentations, and high-resolution video.
The large 55-inch screen provides ample viewing space for commercial environments where information needs to be clearly visible from a distance.
Bright 500-Nit Professional Display
With 500 nits typical brightness, the display provides strong visibility in brightly illuminated indoor environments.
This makes it well suited for:
webOS 6.0 Smart Signage Platform
The built-in webOS 6.0 platform provides smart signage functionality and simplifies professional content deployment.
Businesses can manage and present digital content more efficiently while reducing dependence on separate external media players for supported applications.
Comprehensive Professional Connectivity
The LG 55UM5N-E includes a wide range of interfaces for integration with professional AV equipment, PCs, media players, networks, and control systems.
Connectivity includes:
3 × HDMI
DisplayPort
USB 2.0
RS-232C
RJ45 Ethernet
Audio
IR
This broad connectivity makes the display suitable for both standalone signage and centrally managed AV installations.
Network & Remote Management Ready
The integrated RJ45 Ethernet connection enables wired network integration, while RS-232C provides professional device-control capabilities.
These features are useful for installations where multiple displays need to be monitored or controlled from a centralized system.
Slim-Bezel Commercial Design
The LG 55UM5N-E features a clean, professional design with slim bezels measuring approximately:
12.4 mm – Top / Bottom
11.4 mm – Right / Left
The narrow borders keep attention focused on the displayed content and help create a modern appearance in commercial installations.
Designed for Professional Environments
Unlike conventional consumer televisions, the LG 55UM5N-E is designed around professional signage requirements, including centralized connectivity, digital content presentation, and integration with commercial AV infrastructure.
Its combination of 4K resolution, high brightness, webOS, and professional interfaces makes it a strong solution for businesses requiring reliable large-format digital communication.
Key Features
55-inch professional digital signage display
4K UHD 3840 × 2160 resolution
500 nits typical brightness
Built-in webOS 6.0
Professional commercial signage platform
3 × HDMI inputs
DisplayPort connectivity
USB 2.0
RJ45 Ethernet
RS-232C professional control
Audio connectivity
IR interface
Slim bezel design
12.4 mm top and bottom bezels
11.4 mm right and left bezels
EPEAT certification applicable to supported US configurations
Suitable for centralized AV and signage installations
Technical Specifications
Brand: LG
Model: 55UM5N-E
Product Type: Professional Digital Signage Monitor
Display
Smart Platform
Connectivity
HDMI × 3
DisplayPort
USB 2.0
RS-232C
RJ45 Ethernet
Audio
IR
Bezel Width
Top: 12.4 mm
Bottom: 12.4 mm
Right: 11.4 mm
Left: 11.4 mm
Environmental Certification
Recommended Applications: Retail digital signage, corporate communications, conference rooms, hospitality, education, transportation displays, reception areas, information boards, menu systems, advertising, and professional commercial AV installations.
