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55'' LG UR640S Series 4K UHD Commercial Signage TV

LG 55UR640S9UD


  • Deploy as Menu Boards, Retail Displays, Meeting Rooms, and Other Conference Spaces
  • Support Dynamic HD Content: 4K UHD (3840 x 2160) IPS Display
  • Deliver Clear Messages in a Variety of Settings: 330 Nits Brightness (Typ.)
  • Save Space Compared to Conventional TVs: Slim Depth Design

Quick Specs

  • Type: 50 - 59 LED-LCD TV
  • Width: 48.6"
  • Height: 30.4"
  • Depth: 9.1"
  • Energy Star Rated: No
  • Screen Size: 55"
  • Max Resolution: 4K
  • WiFi Connected: Yes

See More

Versatile Content Management System

LG SuperSign CMS is an integrated management program supporting the creation and management of digital media and content deployment, optimized for LG digital signage. Its simple and intuitive menus and layout options enhance efficiency for content creation and editing, scheduling, and distribution, improving the overall user experience. In addition, it supports multiple displays and accounts, can be linked to external databases and allows server access from mobile devices.

Compatible with AV Control Systems

The UR640S Series supports Crestron Connected®* for high compatibility with professional AV controls to achieve seamless integration and automated control**, boosting business management efficiency.

Compatible with Video Conference System

The UR640S Series is compatible with Cisco for effective visual meetings, offering robust and integrated control* for smart video conferencing.

Easy Menu Setup for Vertical Needs

The UR640S Series increases users' convenience by organizing frequently used menus* categorized by industry.


Maintenance is easy and fast with the optional LG ConnectedCare* service, a cloud service solution provided by LG. It remotely manages the status of displays in client workplaces for fault diagnosis and remote-control services, supporting the stable operation of clients' businesses.

Wireless Access Point

The UR640S Series operates as a virtual router that can be a wireless access point for mobile devices.

Superb Picture Quality with Ultra HD Resolution

With a resolution that is four times higher than Full HD, it makes the color and details of the contents more vivid and realistic. In addition, the wide viewing angle applied with an IPS panel provides clear content.

Improved Design with Slim Depth

This series is thinner than LG's conventional* model, saving space and enabling easy installation. In addition, its sophisticated blue color improves the décor of the room where the product is installed.

High-Performance with webOS™*

This TV is equipped with webOS™, upgraded in System on Chip (SoC) and web engine for smooth execution of several tasks. LG webOS™ Smart Signage Platform enhances user convenience with intuitive Graphic User Interface (GUI).

Embedded Content & Group Management

The embedded Content and Group Management System allows you to edit and play content, schedule playlists, groups, and control signage via remote control, mouse, and mobile phone without using a separate PC or software. This makes content management easy and user-friendly.


Using LG's Promota* application, downloadable on a mobile device, you can easily create your display content. With Promota, you can add text and images to create an online profile for your business and deliver information such as event news, seasonal menus, promotions, and even more to your customers while recommending easy-to-use templates relevant to your industry.

Quick & Easy Signage Control with LG's SuperSign Control

SuperSign Control is the essential control software, and it can manage up to 100 displays through a single account and server. You can remotely adjust power, volume, and scheduling, and firmware updates supported.

Display Power Management Support

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

Real-Time Promotion & Content Sharing

With Beacon and Bluetooth® Low Energy (BLE), shop managers can provide coupons and information in real-time. And content mirroring among devices is available on the same Wi-Fi network.


  • Deploy as Menu Boards, Retail Displays, Meeting Rooms, and Other Conference Spaces
  • Support Dynamic HD Content: 4K UHD (3840 x 2160) IPS Display
  • Deliver Clear Messages in a Variety of Settings: 330 Nits Brightness (Typ.)
  • Save Space Compared to Conventional TVs: Slim Depth Design
  • Simplify Fleet Management: LG SuperSign Control
Size 55"
Resolution 3840 X 2160 (UHD)
Backlight Unit Type Direct
Brightness 400 nits
Dynamic Contrast Ratio (Dynamic MCI (Hz)) 1,000,000:1
Static (Panel) Contrast Ratio 1300:1
Response Time (G to G) 14 ms
Refresh Rate 60Hz
Life Span 30,000 hrs
HDR_HDR 10 Pro Yes
Built-in Speakers 2.0 channel, 10W + 10W
LG Sound Sync Yes (Bluetooth Required)
Broadcasting System ATSC, Clear QAM, Analog NTSC
Global IPTV Support Yes
Smart Home (Launcher Bar) Yes
Quick Access Yes
Web Browser Yes
Pre-loaded App YouTube
SDP Server compatibility Yes
SW Clock (World Clock / Alarm) Yes
Mood Display Yes
SoftAP Yes
Wi-Fi 802.11ac
Screen Share (Miracast) Yes
Smart Share Yes
LG ThinQ App Yes
Bluetooth Audio Playback Yes
Mobile Connection Overlay Yes
USB Cloning Yes
Self Diagnostics (USB) Yes
SI Compatible Protocol TVLink Tuner
Simplink (HDMI-CEC) 1.4
IR Out RS-232C
Multi-code IR Yes
Hotel Mode / PDM / Installer Menu Yes
Lock mode Yes (Limited)
Port Block Yes
Welcome Screen (Splash Image) Yes
Insert Image Yes
IP Channel Manager Yes
External Speaker Out Int / Fixed, 3.5mm, Stereo, Single ended Type(GND,L+,R+), 2W with 8
RJP (remote jack pack) Compatibility Teleadapt/Guestlink (HDMI CEC)
Moving Picture Playback (SD/HD/Plus HD) Yes
Auto Off / Sleep Timer Yes / Yes
Energy Saving mode Yes
Motion Eye Care Yes
Crestron Certi. Compatibility Yes
DPM (Digital Power Management) Yes
Time scheduler Yes
RTC (Real Time Clock) Yes
NTP sync timer Yes
Embedded CM (Contents Manager) Yes
Embedded GM (Group Manager) Yes
Promota / Mobile CMS Yes / Yes
SuperSign Control / Control Plus Yes / Yes
SuperSign CMS(Premium) Yes
Simple Editor Yes
HDMI In 3 (v2.0)
RS-232C 3.5mm Stereo Jack
Service Only 3.5mm Stereo Jack
USB 2.0 1
RF In 1
Optical Digital Audio Out 1
External Speaker Out 3.5mm Stereo Jack
RJ45 (LAN) 1
Stand Type 20Y 2Pole
Front Color Blue
VESA Compatible 300 x 300
Kensington Lock Yes
Weight without Stand 30.9 lbs / 14.0 kg
Weight with Stand 31.3 lbs / 14.2 kg
Shipping Weight 41.9 lbs / 19.0 kg
Dimensions without Stand 48.6 x 28.1 x 2.3 in 1235 x 715 x 57.5 mm
Dimensions with Stand 48.6 x 30.4 x 9.1 in 1235 x 772 x 232 mm
Dimensions in Shipping 53.5 x 31.9 x 6.4 in 1360 x 810 x 162 mm
Bezel Width (L/R/U/B): On Bezel 12.8 / 12.8 / 12.8 / 19.9 mm
Bezel Width (L/R/U/B): Off Bezel 6.9 / 6.9 / 6.9 / 18.4 mm
Power Supply (Voltage, Hz) 120 Vac, 50/60 Hz
Power Consumption (Max) 166.3 W
Power Consumption (Typ) 140.1 W
Standby Power Consumption Less than 0.5W
Warranty & Other
Standards UL
EMC Certification FCC
Environmental EPEAT, ISTA6
Accessories L-Con Remote Control, Power Cable (2m, Attached), Optional Chromecast Anti-theft Accessory

Quick Specs

  • Appearance

  • Type: 50 - 59 LED-LCD TV

  • Dimensions

  • Width: 48.6"
  • Height: 30.4"
  • Depth: 9.1"

  • Features

  • Energy Star Rated: No

  • Size

  • Screen Size: 55"

  • Panel

  • Max Resolution: 4K
  • WiFi Connected: Yes

Professional delivery and installation is available for every product we sell. We would be happy to coordinate delivery and installation for you.

Extended warranties are usually very inexpensive and can save you thousands in the future. It's simple and inexpensive to purchase extended warranties and one of the smartest ways to protect your investment.

Electronics can be large, heavy and expensive. You probably don't have the special tools or expertise needed to fix them in a crisis. If you can spare a few thousand dollars without batting an eyelash for new electronics should they break tomorrow, don't buy a warranty. But if you're like most of us, protect yourself by purchasing inexpensive extended warranties when you buy a new product and save yourself big money in the long run.