# Digital signage flat panel LG 55UN640S 55" LCD 4K Ultra HD 3840 x 2160

**URL:** https://aio.lv/en/product--lg-55un640s0ld--10737269
**Data updated:** 2025-12-30 10:01 (EET)
**Category:** Monitors
**Manufacturer:** LG
**Manufacturer code:** 55UN640S0LD
**EAN:** 8806084508171
**Warranty:** 3 Years
**Availability:** Available for order
**Price:** 548.49 €
**Prices and availability valid until:** 2026-07-21 23:59
**Price without VAT (21%):** 453.30 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--lg-55un640s0ld--10737269

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | Friday | free |
| Pickup points | 01.07.2026 | 1.89 EUR |
| Courier delivery to door | 01.07.2026 | 14.79 EUR |

## Summary description

The LG 55UN640S is a 55-inch digital signage flat panel featuring LCD technology with a stunning 4K Ultra HD resolution of 3840 x 2160 pixels. With a brightness of 400 cd/m², it ensures vibrant and clear visuals, making it ideal for various display applications. The built-in Wi-Fi and WebOS operating system provide seamless connectivity and user-friendly interface for easy content management. Its sleek blue design adds a modern touch to any environment.

## Long description

The LG 55UN640S is a 55-inch digital signage flat panel with LCD technology and 4K Ultra HD resolution (3840 x 2160). Designed for commercial display use, it delivers detailed images with a brightness of 400 cd/m² and comes with built-in Wi‑Fi and the webOS22 platform for simplified content playback and device management. The panel features a slim depth and an ashed blue finish to reduce installation footprint and blend with interior décor.
Advantages
The UN640S series offers Ultra HD picture quality that reproduces finer color and detail compared with FHD. It integrates LG webOS22 with an upgraded SoC and web engine for smoother multitasking and an intuitive GUI. Embedded Content & Group Management enables content editing, scheduling and playback without a separate PC or software. Additional management options include LG SuperSign CMS support and SuperSign Control+ (free version) for group control of up to 100 displays. The panel supports Crestron Connected and Cisco video conference compatibility, acts as a wireless access point, and supports Beacon/BLE for real‑time promotions.
Suitable for
Retail signage and in‑store promotion
Corporate lobbies and meeting room displays
Government information boards and public spaces
Video conferencing and collaboration spaces
Key specifications
Display diagonal: 55"
Resolution: 3840 x 2160 (4K Ultra HD)
Display technology: LCD
Brightness: 400 cd/m²
Built‑in speakers: Yes
VESA mounting: Yes
Energy class (SDR/HDR): G / G
Energy consumption (per 1000 h): 79 kWh (SDR), 113 kWh (HDR)
Product colour: Blue
Platform: LG webOS22 (embedded)
How to use
Install the display using compatible VESA mounts and connect power and network (wired or built‑in Wi‑Fi). Use the embedded webOS22 interface or SuperSign applications to upload, schedule and manage content. For group management, register displays in SuperSign Control+ or connect to LG SuperSign CMS (sold separately) to create playlists, set schedules and apply remote settings. For video conferences, connect an external codec or PC via HDMI and enable Cisco compatibility where certified.
Usage recommendations
Configure Display Power Management (DPM) to power the display only when a signal is present, and consider using LG ConnectedCare (optional, region dependent) for remote monitoring and faster maintenance. For multi‑display deployments, test SuperSign Control+ and Crestron integration during initial setup to ensure network‑based control and firmware update workflows operate correctly.

## Specifications

### Display

| Feature | Value |
|---|---|
| Display diagonal | 55 " |
| Display technology | LCD |
| HD type | 4K Ultra HD |
| Display resolution | 3840 x 2160 |
| Display brightness | 400 cd/m² |
| Display diagonal (metric) | 138 cm |
| Native aspect ratio | 16:9 |
| Touchscreen | No |
| High Dynamic Range (HDR) supported | Yes |
| High Dynamic Range (HDR) technology | High Dynamic Range 10 Pro (HDR10 Pro), Hybrid Log-Gamma (HLG) |

### Design

| Feature | Value |
|---|---|
| Product colour | Blue |
| Placement supported | Indoor |
| Panel mounting interface | 200 x 200 |
| Product design | Digital signage flat panel |
| Bezel width (side) | 12.8 mm |
| Bezel width (top) | 12.8 mm |
| Bezel width (bottom) | 19.9 mm |
| Colour name | Ashed Blue |
| Orientation | Horizontal |

### Ports & interfaces

| Feature | Value |
|---|---|
| DVI port | No |
| HDMI ports quantity | 3 |
| Ethernet LAN (RJ-45) ports | 1 |
| USB version | 2.0 |
| HDMI version | 2.0 |
| USB ports quantity | 1 |
| Number of speaker outputs | 1 |
| USB port | Yes |
| RS-232C | Yes |
| RF input | 2 |
| Digital audio out | 1 |

### Ergonomics

| Feature | Value |
|---|---|
| Cable lock slot type | Kensington |
| VESA mounting | Yes |

### Audio

| Feature | Value |
|---|---|
| Built-in speaker(s) | Yes |

### Performance

| Feature | Value |
|---|---|
| Analog signal format system | PAL, SECAM |
| TV tuner integrated | Yes |
| Purpose | Universal |
| Operating system installed | webOS |
| Browsing | Yes |

### Network

| Feature | Value |
|---|---|
| Ethernet LAN | Yes |
| Wi-Fi | Yes |

### Multimedia

| Feature | Value |
|---|---|
| RMS rated power | 20 W |
| Audio Return Channel (ARC) | Yes |

### Technical details

| Feature | Value |
|---|---|
| Real Time Clock (RTC) | Yes |

### Computer system

| Feature | Value |
|---|---|
| Operating system version | 22 |

### Other features

| Feature | Value |
|---|---|
| Bluetooth | Yes |
| Headphone outputs | 1 |
| Power management | Yes |
| Common interface Plus (CI+) | Yes |
| Hotel mode | Yes |
| Teletext function | Yes |
| Digital signal format system | DVB-S2, DVB-C, DVB-T2 |
| Common interface Plus (CI+) version | 1.4 |
| Timer | Yes |
| Bluetooth Low Energy (BLE) | Yes |

### Power

| Feature | Value |
|---|---|
| Energy efficiency class (SDR) | G |
| Energy efficiency class (HDR) | G |
| Energy consumption (SDR) per 1000 hours | 79 kWh |
| Energy consumption (HDR) per 1000 hours | 113 kWh |
| Power consumption (typical) | 128 W |
| Power consumption (standby) | 0.5 W |
| Power consumption (max) | 155 W |
| AC input frequency | 50-60 |
| AC input voltage | 100-240 |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight (with stand) | 14200 g |
| Width (with stand) | 1235 mm |
| Height (with stand) | 772 mm |
| Depth (with stand) | 232 mm |
| Display depth | 57.5 mm |
| Display height | 715 mm |
| Display weight | 14000 g |
| Display width | 1235 mm |

### Packaging content

| Feature | Value |
|---|---|
| Remote control included | Yes |
| Cables included | AC |
| Stand included | Yes |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 19000 g |
| Package depth | 162 mm |
| Package height | 810 mm |
| Package width | 1360 mm |

## FAQ

### How much does the Digital signage flat panel LG 55UN640S cost, and is it available for purchase?

The price is 548.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on Friday at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can Digital signage flat panel LG 55UN640S be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All LG products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized LG service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: display diagonal, display resolution, hd type, display technology, vesa mounting, built-in speaker(s), tv tuner integrated, energy efficiency class (sdr), energy efficiency class (hdr), energy consumption (sdr) per 1000 hours, energy consumption (hdr) per 1000 hours, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

### Where can I download the instructions for Digital signage flat panel LG 55UN640S?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/10737269/65305638_large.webp