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Product code: LGT513LG5COMBL

LG 55UN640S 55″ 4K Commercial Display with webOS22 Signage Features

A robust and versatile commercial-grade 55″ 4K display with webOS22, embedded content & group management, hotel mode, and advanced remote control — ideal for corporate, hospitality, retail or government environments.

£639.00
LG 55UN640S 55″ Front
LG 55UN640S 55″ Front No Image
LG 55UN640S 55″ Front Angle
LG 55UN640S 55″ Side

  • LG 55UN640S 55″ 4K Commercial Display

    Professional Display, Everyday Ease

    The LG 55UN640S is more than just a 4K screen—it's a full commercial signage solution. With HDR10 Pro and HLG support, 400 cd/m² brightness, and powerful webOS22, this display performs across corporate, retail, hospitality and meeting-room applications.

    Built-In Content & Group Management

    Say goodbye to clunky external software. The embedded content and group management system lets you schedule playlists, control multiple screens, and play media—all via remote control, your phone or tablet 

    LG SuperSign Control + Compatible

    Manage fleets of up to 100 displays from a single Master unit using LG SuperSign Control+ (free version), or upgrade to premium CMS for enterprise-level control and content publishing 

    Integrates with AV & Conferencing

    Certified for Crestron Connected® and compatible with Cisco conferencing systems (via HDMI), the 55UN640S allows seamless control for boardroom or multi-room integration 

    Smart Power Management

    Display Power Management (DPM) powers on the screen only when a signal is detected—boosting longevity and reducing running costs 

    Engagement Tools: Beacon & BLE

    Use built-in Bluetooth Low Energy (BLE) and beacon technology to push coupons, promotions, or content mirroring across devices on the same Wi‑Fi network—great for retail or event spaces 

    Virtual Router & Mirroring

    This display acts as a virtual router (SoftAP), letting devices connect to it via Wi‑Fi. Screen mirroring and content sharing is available across the same network without a PC or extra hardware

    Tailored for Hospitality & Corporate Use

    Features include hotel mode, USB cloning, welcome screen splash, lock modes, RJP support and more—perfect for setting up efficient installations across multiple rooms or sites

  • Technical Specification

    Screen Size:
    55″ (139.7 cm diagonal)

    Resolution:
    4K UHD 3840 × 2160 pixels

    Brightness:
    400 cd/m²

    HDR Support:
    HDR10 Pro, HLG

    Operating System:
    webOS 22 (SoC onboard)

    Audio Output:
    Built-in speakers 2 × 10 W (total 20 W)

    Connectivity:
    Wi‑Fi, Ethernet (LAN), Bluetooth, SoftAP

    HDMI Inputs:
    3 × HDMI 2.0 (includes HDMI-ARC)

    USB:
    1 × USB 2.0 (for media playback/cloning)

    Tuner:
    DVB-T2 / C / S2 digital, PAL/SECAM analog, Teletext

    External Controls:

    RS-232C, IR-out, Simplink HDMI‑CEC

    Hospitality/Signage Tools:

    Hotel Mode, PDM, Installer Menu, Failover URL playback, Welcome Screen, Multi IR Code, USB Cloning, Beacon, SNMP, RTC/NTP, Group Management

    Remote Software:

    SuperSign Control+ (free) up to 100 displays; premium SuperSign CMS support 

    Power:

    AC 100–240 V, 50/60 Hz; typical 128 W, max 155 W; standby <0.5 W

    Energy Class:

    G (SDR and HDR on-mode)

    Operational Hours:
    16/7

    Design:
    Slim profile 57 mm depth; ashed blue bezel; dual-pole tabletop stand; VESA 300×300 mm

    Dimensions (with stand):
    1235 × 772 × 232 mm

    Weight (with stand):
    14.2 kg (14.0 kg without)

    Security:
    Kensington lock slot, Lock Mode

    Included:
    Remote control (S-Con), Power cable, Stand

  • LG Televisions

    Sleek design, patented technology and innovative features; LG TVs can transform the way you watch television. LG OLED, NanoCell, UHD and LED TV screen deliver high resolution picture quality, unrivalled colour depth and incredible contrasts. Choose from a range of screen sizes, from 32 to 88 inches, to suit your home.

    OLED R

    The world's first and only rollable TV has arrived. Groundbreaking technology not only reimagines what a TV is capable of, it revolutionizes the way you use your space. With out-of-this-world picture quality combined with LG's new extraordinary rollable technology lets you step into the future every time you use your TV. A screen as thin as paper rolls into a state-of-the-art sound system. This unbelievable display is only possible with OLED's self-lit pixel technology. 

    SIGNATURE OLED R is a work of art fit for your luxury lifestyle, with a TV that appears when you need it and disappears when you don't. The display rolls out to three different heights — each with a unique purpose, all with a stylish look that complements your space.

    OLED TVs

    OLED TVs make movies and boxsets incredible. Packed with 4K detail and in the deepest shades of black. Fast-paced action stays smooth. Explore LG OLED TVs today.

    NanoCell TVs

    Nano Cell TVs are LG's best LED 4K & 8K TVs. They deliver incredible picture quality to your living room – no matter where you sit. Tiny pixels are packed together tightly, filtering out dull shades and creating bright and vivid colour from any angle. Movies and boxsets in 4K HDR look incredible on Nano Cell televisions – benefiting from the high dynamic range palette of more than one billion colours, and the added depth and detail of 4K resolution. Fast-paced next-gen games and live sport remain smooth as well, thanks to the powerful picture processing in Nano Cell TVs. Experience adrenaline-fuelled action on the racetrack with zero motion blur.

    ULTRA HD 4K TVs

    A new standard of high definition, Ultra HD is the future of TV. With a stunning 8.3 million pixels enjoy the incredibly vivid and flawless picture quality of ULTRA HD TV from LG

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