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LG 55UT640S0UA
55" UT640S Series UHD Commercial Signage TV

LG 55UT640S0UA

This product is no longer available.

Please Contact us for more information.

This product has been replaced by the 55UR640S0UD.


The UT640S Series is specifically designed for diverse business environments. By providing compatibility with AV Control systems and DPM (Display Power Management) as well as its smart connectivity, simple user friendly interface, and UHD picture quality, the UT640S series enhances ease of use while facilitating communications between businesses and their target audiences.

  • Size: 55"
  • Content Management/Group Management
  • SuperSign Control
  • Simple Network Management Protocol (SNMP)
  • Wake-up On Lan
  • Crestron Connected® (Network Based Control)


Simple Content Management

Embedded Content & Group Management

The embedded Content and Group Management System allows you to edit and play content, schedule playlists and groups, and control Signage via remote control, mouse and mobile phone without the use of separate PC or software. This makes content management much easier and more user-friendly.

Embedded-Content & Group-Management

SuperSign Control

SuperSign Control is free, basic LG control software that can manage up to 100 displays through a single account and server. Power, volume, and scheduling can be remotely adjusted, and firmware updates supported.

SuperSign Control

USB Data Cloning

USB data cloning increases efficiency when managing multiple displays, since installers don't have to set up each display one by one. Once installers copy data to a USB device from one display, it can be easily imported on other displays of the same model through the USB port.

USB Data Cloning

Real-Time Remote Monitoring

Malfunctions or errors can be easily handled through real-time remote care. When an error occurs, notifications can be sent via SNMP (Simple Network Management Protocol).

Easy Remote Power-On

WOL (Wake-on-LAN) enables users to turn on displays* by sending messages through the network.

Simple Content Management

Higher Visibility

True Color, Immersive View

The large size and Ultra HD resolution of the UT640S series enhances the visibility of content and captivates viewers. The LG IPS panel provides a wide range of viewing angles so that content can be clearly seen, regardless of the viewer's position. Each pixel in the IPS panel reproduces true-to-life colors without distorting images.


Amazing Picture Quality and Color

Enjoy Full HD content in 4K Ultra HD quality, optimized by the 4K Upscaler. The 4K upscaler automatically upgrades Full HD content to Ultra HD through several upscaling processes so that images look crisp and clear in any viewing situation. This LG TV can also express intense highlights, vivid colors, and deep black hues on the screen through HDR10.


Better Usability

Compatibility with AV Control Systems

The UT640S series has been certified Crestron Connected®, proving that it has a higher level of compatibility with professional AV controls. This results in seamless integration and automated control*, boosting business management efficiency.

Welcome Video / Screen

DPM (Display Power Management)

Display Power Management (DPM) can be configured to only be On when there is a TV signal present to manage power more efficiently.

External speaker out


55UT640S Specifications
DESIGN Stand Type 2 Pole
Front Color Ceramic Black
DISPLAY Diagonal Class 55"
Resolution 3840 X 2160 (UHD)
Brightness (nits) 360
VIDEO HDR (10 Pro / HLG) Yes / Yes
AUDIO Audio Output 10W + 10W
Speaker System 2.0 ch
LG Sound Sync Bluetooth required
SUPERSIGN SW COMPATIBILITY Content Management Software (CMS), Control and Monitoring Software (Control/Control+), Simple Editor
SIGNAGE FEATURES Crestron Connected® (Network Based Control), DPM (Digital Power management), Time scheduler, RTC (Real Time Clock), NTP sync timer, BEACON, Embedded CM (contents manager), Embedded GM (Group manager)
SMART FEATURES webOS 4.5, Smart Home (Launcher Bar), Web Browser, Pre-loaded App (YouTube only), Soft AP, WiFi (bandwidth)(ac), Screen Share (Miracast), LG TV Plus App Compatibility, DIAL, Bluetooth Audio Playback, LG Sound Sync/bluetooth, Mobile Connection Overlay
HOSPITALITY FEATURES Hotel Mode / PDM / Installer Menu, Lock mode (Limited), Welcome Screen (Boot Logo), Insert Image, One Channel Map, IP Channel Manager, External Speaker Out (Variable /Fixed, 3.5mm, Stereo (GND, R, L), Max1W with 8Ω), VLAN, Teleadapt/Guestlink (HDMI CEC), Moving Picture Playback (SD/HD/Plus HD), Auto Off / Sleep Timer, Smart Energy Saving, Motion Eye Care
MAINTENANCE FEATURES USB Cloning, WOL, SNMP, Diagnostics (Self Diagnostics (USB)), NTSC / ATSC / QAM, Simplink(HDMI-CEC)(1.4), IR Out (RS-232C), Multi-code IR
JACK INTERFACE Side HDMI In 2(2.0), USB (2.0)
Rear HDMI In (HDCP) 2.0, RF In (tuner), AV In (3.5mm), Digital Audio Out (Optical), RS-232C (D-Sub 9pin, Control & Service), RJ45 2 (Ethernet, SNMP), External Speaker Out (3.5mm, Stereo, Max 1W with 8Ω), Service Only (3.5mm)
MECHANICAL VESA (W x H) 300 x 300
W x H x D / Weight (with stand) 49" x 30.9" x 9.1" / 32 lbs
1,244 x 786 x 231 / 14.5 kg
W x H x D / Weight (without stand) 49" x 28.4" x 3.4" / 31.5 lbs
1,244 x 721 x 87.1 / 14.3 kg
W x H x D / Weight (Shipping) 53.5" x 33" x 6.9" / 43 lbs
1,360 x 835 x 175 / 19.5 kg
ELECTRICAL Voltage AC 120 V ~ 50 / 60 Hz
Power Consumption (Typical) 145W
Standby Power Under 0.5W
OTHER Warranty 3 Year Parts and Labor
Accessories S-Con Remote, 1.8m Right-Angle Power Cord
UPC 7 19192 63319 3

* Specifications are subject to change without notice, so please reach us to ensure before order.


Pricing Notes: