Product Description
LG 55UR640S TV Digital Signage | 55″ 4K UHD Display | webOS 6.0 | 400 nits | 20W Speaker | Built-in Wi-Fi | Black
The LG 55UR640S is a professional-grade 55-inch 4K UHD digital signage display designed for hospitality, retail, education, and corporate environments that demand reliable performance and vibrant visual quality. Featuring 4K Ultra HD resolution (3840 × 2160) and 400-nit brightness, it delivers stunning detail and vivid color reproduction for an engaging viewing experience.
Built on the LG webOS 6.0 Smart Signage platform, this display offers seamless content management, scheduling, and network control. With integrated Wi-Fi and Bluetooth, it enables easy screen sharing, wireless connectivity, and flexible deployment without additional hardware.
Designed to blend elegance with practicality, the UR640S is slimmer than previous models and features a modern ashed blue finish, adding sophistication to any environment. Its 20-watt 2.0-channel speaker system ensures clear and balanced sound, while compatibility with SuperSign CMS and LG ConnectedCare provides enterprise-level control and remote management.
Perfect for hotels, conference rooms, educational institutions, and digital signage networks, the LG 55UR640S combines superior image quality, durability, and smart functionality in a sleek, space-saving form factor.
Key Features
55″ 4K UHD (3840×2160) Display – Four times the detail of Full HD for crisp, vibrant visuals.
400 nits Brightness & 1200:1 Contrast Ratio – Ensures high visibility in various lighting conditions.
webOS 6.0 Platform – Simplified content management with built-in browser, scheduler, and app support.
Wireless Connectivity – Built-in Wi-Fi, Bluetooth, and Soft AP for flexible installation and control.
20W Built-in 2.0-Channel Speakers – Delivers clear, room-filling audio for commercial environments.
Hospitality & Commercial Functions – Includes USB cloning, hotel mode, welcome screen, and RJP compatibility.
Professional Integration – Supports Cisco / Crestron control systems and SuperSign CMS software.
Slim, Modern Design – Space-saving chassis with refined ashed blue finish for stylish installations.
Energy Efficient & Reliable – 24/7 operation capability with power consumption under 0.5W in standby mode.
Specifications
| Category | Details |
| Display Size | 55″ |
| Resolution | 3840 × 2160 (4K UHD) |
| Brightness (Typ.) | 400 nits |
| Contrast Ratio | 1,200:1 |
| HDR Support | HDR10 Pro, HLG |
| Speaker Output | 20W (2.0ch) |
| Sound Features | LG Sound Sync, Bluetooth Audio Playback |
| Operating System | webOS 6.0 |
| Wi-Fi / Bluetooth | Yes / Yes |
| Smart Features | Screen Share, DIAL, Web Browser, Mood Display |
| Control Protocols | RS-232C, RJ45 LAN, IR, HDMI-CEC, SNMP |
| Commercial Features | Hotel Mode, Welcome Screen, Failover, Scheduler, USB Cloning |
| Compatibility | Cisco / Crestron, SuperSign CMS & Control+, LG ConnectedCare |
| Inputs | HDMI ×3, USB ×1, RF In, AV In |
| Outputs | Digital Audio Out (Optical), External Speaker Out, Headphone Out |
| Power Supply | AC 100–240V, 50/60Hz |
| Power Consumption (Typ./Max.) | 140W / 166W |
| Standby Power | < 0.5W |
| Bezel Color | Ashed Blue |
| Bezel Width (mm) | 12.8 (Top/Sides), 19.9 (Bottom) |
| Dimensions (W×H×D) | 1235 × 715 × 57.5 mm (without stand) |
| Weight (Net / Shipping) | 14.0 kg / 19.0 kg |
| VESA Mount | 300 × 300 mm |
| Accessories (Included) | Remote (S-Con), Power Cable (1.5m), Stand, Quick Start Guide |
