BRIGHTNESS300 nitsTypical
RUNTIME16-724 h x 7 days
VESA MOUNT200×300 mmVESA
ORIENTAIONLandscapeMounting
BEZEL WIDTH8.2 / 8.2 / 8.2 / 17.5 mmL / R / T / B (on)
55-inch 4K UHD professional TV signage
LG 55PK640S0LB
The LG 55PK640S0LB is a 55-inch 4K UHD TV Signage display designed for commercial deployments across retail, hospitality, corporate lobbies, and quick-service restaurants. Built on the webOS 25 smart signage platform with a Quad-core SoC, it runs standalone without an external media player, handling content scheduling, group management, and remote monitoring entirely on-device. With built-in Wi-Fi 5 (802.11ac), Bluetooth, LAN, and a full suite of vertical signage functions — including failover, URL playback, Crestron compatibility, and BEACON support — it integrates cleanly into both simple and complex signage architectures. Its slim form factor and 16-hours-per-day, 7-days-a-week duty rating make it a reliable, installation-friendly choice for continuous business use.

Embedded webOS 25 — Standalone Signage
The 55PK640S0LB runs LG's webOS 25 platform on a Quad-core SoC (K25Lp), meaning the display operates as a fully self-contained signage player with no external media box required. The upgraded SoC and web engine deliver smooth multitasking — web browsing, app execution, and signage content run concurrently without stuttering. For users managing a store or venue, this translates to a simpler, tidier installation (no extra boxes, cables, or remote controls), lower total cost of ownership, and fewer potential failure points to troubleshoot over time.

Embedded Content and Group Management
Without any external software or PC, operators can build playlists, set time schedules, and organise displays into master-and-group hierarchies — all controlled via remote control, mouse, or mobile phone. This embedded Content and Group Management System is especially practical in small-to-medium retail or hospitality settings where IT support is limited. Staff can update promotional content or swap a schedule directly on the display, reducing dependency on centralised IT and keeping displays current with minimal effort.
4K UHD. webOS 25. No external player needed.
16-7 rated · CE certified · Up to 30,000 hrs backlight life

Real-Time BLE Promotions via BEACON
The PK640S0LB features a built-in Bluetooth Low Energy BEACON transmitter (supporting both iBeacon and Eddystone protocols). In retail environments, this allows the display to push coupons, product information, or loyalty offers directly to nearby shoppers' smartphones — without any additional hardware. The beacon operates passively alongside normal signage content, turning the screen into an active engagement tool rather than a passive display, which can meaningfully increase customer interaction at the point of sale.

Wireless Access Point — Built-In Soft AP
Beyond Wi-Fi content streaming, the PK640S series can operate as a virtual router (Soft AP), acting as a wireless access point for mobile devices in the vicinity. This means a standalone display in a pop-up shop, event space, or kiosk area can simultaneously deliver its own Wi-Fi network to customers — without needing a separate router. For temporary or low-infrastructure installations, this eliminates an additional network device from the bill of materials while still providing connectivity for both the display and end-user devices.

Failover for Uninterrupted Playback
The display supports automatic Failover, switching to a backup source if the primary input signal is lost. In a live-event environment, menu board, or lobby installation where downtime is visible and costly, this ensures the screen never goes dark unexpectedly. Combined with Play via URL and an embedded media player, operators can configure a robust content chain where network-streamed content falls back to locally stored content automatically — keeping the display productive even if connectivity drops.

LG ConnectedCare Remote Monitoring
The 55PK640S0LB is compatible with LG ConnectedCare, an optional cloud-based management service that remotely monitors display health, diagnoses faults, and enables remote control across a fleet of displays. For multi-site operators — such as retail chains or hotel groups — this means issues can be identified and often resolved without dispatching a technician, reducing service costs and shortening any period where a display is underperforming. ConnectedCare is purchased separately and availability varies by region.

HDR10 Pro and HLG — Elevated Picture Quality
Support for both HDR10 Pro and Hybrid Log-Gamma (HLG) means the display can render high dynamic range content from a wide range of broadcast, streaming, and locally stored sources. In retail and hospitality settings where premium brand imagery or video menus are displayed, the improved contrast depth and colour volume make content look noticeably more vibrant and professional compared to standard SDR output — without any manual adjustment needed by the operator.

Crestron Certified — AV System Integration
The 55PK640S0LB carries Crestron compatibility certification, meaning it integrates natively into Crestron-controlled AV environments without custom programming workarounds. For corporate, education, or hospitality installations where room control systems manage displays, lighting, and AV switching from a single controller, this pre-certified compatibility reduces integration risk, shortens commissioning time, and gives AV integrators confidence the display will behave predictably in the control ecosystem.