LG 55UN640S0LD
- TVs
- 55″
- 4K
- LCD / LED
Uses 5% more energy than the average for 55-inch TVs on Wattabill (3683 models).
Running cost at a glance
- €33.40 per year
- €334 over 10 years
- 115 kWh per year
- 24 kg CO₂e per year from electricity use
Your country and usage
- Electricity at €0.2896 per kWh (household price with taxes, Eurostat 2025-S2).
- 210 g CO₂e per kWh generated in 2023 (European Environment Agency). Counts use only, not manufacturing.
We assume prices stay the same over the years.
Electricity prices in all EU countries
Same size and resolution, cheaper to run
Models on the market with the same screen size and resolution as the LG 55UN640S0LD that use at least 5% less energy.
About this model
Text from the manufacturer, via Icecat.
LG TV Signage with Essential Function
Superb Picture Quality with Ultra HD Resolution
With the resolution that is 4 times higher than FHD, it makes the color and details of the contents more vivid and realistic.
Improved Design with Slim Depth
This series is thinner than LG conventional* model to save space and enable easy installation. In addition, its sophisticated ahsed blue color improves the décor of the space where the product is installed.
High-Performance with LG webOS22
LG webOS22, with an upgraded SoC* and web engine, is available on the UN640S series for the easy execution of several tasks. The LG webOS smart signage platform enhances user convenience with an intuitive GUI.**
Read more
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 easy and user-friendly.
Versatile Content Management with LG SuperSign CMS
LG SuperSign CMS is integrated management program supporting creation and management of digital media and content deployment, optimized for LG signage. With its simple and intuitive menus and layout options, it enhances efficiency for content creation and editing, scheduling and distribution, improving user experience. In addition, it supports multiple displays and accounts, is able to be linked to external databases, and allows server access from mobile devices.
Easy Group Control
The UN640S series supports SuperSign Control+ Free version which can manage up to 100 displays through a single account and server. Power, volume, and scheduling can be remotely adjusted, and firmware updates supported.
Compatible with AV Control Systems
The UN640S 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
For effective visual meeting, the UN640S series supports its compatibility* with Cisco solutions that offers powerful and integrated control** for a smarter video conference.
Display Power Management Support
Display Power Management (DPM) can be configured to be on only when there is a TV signal 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 a same Wi-Fi network.
Wireless Access Point
UN640S series operates as a virtual router which can be an wireless access point for mobile devices.
Easy Menu Setup for Vertical Needs
UN640S series increases users' convenience by organizing frequently used menus* by industry.
Real-time LG ConnectedCare Service
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.
* 'LG Conventional' refers to LG UT640S series.
* SoC : System On Chip
** GUI : Graphical User Interface
* LG SuperSign CMS is sold separately
* Initial setting from display is required for Crestron Connected® compatibility.
** Network based control
* Cisco compatibility will be certified in Q3 of 2023.
** Using an HDMI cable connection (HDMI cable is optional)
* Pre-set Support Vertical : Corporate / Government / Retail, Meeting room
* The availability of the 'LG ConnectedCare' service differs by region, and it needs to be purchased separately. So please contact the LG sales representative in your region for more details.
Specifications
| Brand | LG |
|---|---|
| Model | 55UN640S0LD |
| Energy class | G |
| Screen size | 55″ (138.8 cm) |
| Power in on mode (SDR) | 79 W |
| Energy class (HDR) | G |
| Power in on mode (HDR) | 113 W |
| Standby | 0.5 W |
| Networked standby | 2 W |
| Resolution | 3840 × 2160 |
| Aspect ratio | 16:9 |
| Panel | LED LCD |
| Refresh rate | 60 Hz |
| Power supply | Internal |
| Guaranteed support | 8 years |
| Software updates | 8 years |
| Spare parts available | 8 years |
| On the market since | June 30, 2023 |
| EPREL registration number | 1614441 |
Source: EPREL, European Commission. Data updated October 13, 2026.
Product description and images: Icecat (Open Icecat), provided as is, without warranty.