LG 55XS4P-B

The LG 55XS4P-B is a 55-inch Full HD window-facing commercial display engineered for high-brightness signage installations where content must be visible through glass in direct sunlight. With 4,000 nits of peak brightness and LG's IPS M+ panel technology, it is purpose-built for retail, real estate, and hospitality environments where displays face outward through shop windows. It carries the world's first UL Verification for Display Anti-Discoloration Characteristics, protecting against screen yellowing caused by prolonged UV exposure. The built-in webOS 6.0 platform with Quad Core SoC eliminates the need for an external media player, while full compatibility with LG SuperSign, ConnectedCare, and Control Manager enables centralized remote management. Rated for 24-7 continuous operation.

4,000 Nit Window-Facing Brightness

The 55XS4P-B delivers 4,000 nits typical brightness (3,200 nits minimum) from a direct-lit IPS M+ panel. Window-facing installations are among the most demanding brightness scenarios: sunlight hitting the glass dramatically reduces perceived contrast, and viewers wearing polarised sunglasses face additional polarisation losses. At this brightness level, content remains bold and legible throughout the day without manual adjustment. LG notes the M+ panel technology also achieves this output at lower power consumption than RGB panels at equivalent brightness — a meaningful advantage for installations where the display runs continuously.

UL Verified Anti-Discoloration Technology

Window-facing displays are exposed to intense UV radiation through glass over months and years of operation, which causes conventional LCD panels to yellow and degrade visibly — a costly aesthetic and reliability problem in premium retail environments. LG holds the world's first UL Verification for Display Anti-Discoloration Characteristics on the XS4P series, providing an independent third-party certification that the panel resists yellowing under prolonged UV exposure. For end users, this translates directly into a maintained brand image and reduced replacement cycles, as the display continues to look clean and professional long after installation.

4,000 nits. Through-glass clarity. Zero media player needed.

UL Verified anti-discoloration · 3-year limited warranty · 24-7 rated

Built-in webOS 6.0 with Quad Core SoC

The 55XS4P-B integrates a Quad Core System-on-Chip running LG's webOS 6.0 platform, meaning the display operates as a fully self-contained signage player without any external hardware. The updated Node.js and Chromium engine enables modern web-app integration, HTML5 playback, and cloud-connected content workflows. Built-in features include local content scheduling, USB plug-and-play, PIP and PBP layouts, tile mode up to 15×15, gapless playback, and failover — all managed through an intuitive on-screen UI. This reduces rack space, cabling complexity, and the support burden that comes with maintaining separate player hardware.

Remote Management via SuperSign and ConnectedCare

The 55XS4P-B is fully compatible with LG's SuperSign CMS, SuperSign Control+, SuperSign Cloud, and ConnectedCare platforms, enabling centralised scheduling, monitoring, and control of one or many displays from any device over the network. Web-based control means administrators can update promotional content, adjust brightness, reboot displays, or diagnose faults remotely in real time — particularly valuable for multi-site retail chains where on-site intervention is costly. Status mailing, SNMP support, Wake on LAN, and auto Set ID further simplify large-scale fleet management.

Quiet Mode for Customer-Facing Spaces

High-brightness displays typically require active cooling fans that generate audible noise — a significant drawback in environments such as estate agents, boutiques, or cafes where staff and customers are in close proximity to the display. The 55XS4P-B's Upgraded Quiet Mode runs the display at 2,500 nits while minimising fan noise, providing a practical balance between brightness and acoustic comfort. This makes it viable in customer interaction zones where noise from signage would otherwise be disruptive.

Conformal Coating and Wide Operating Temperature

The circuit and power boards of the 55XS4P-B are protected with a conformal coating that shields electronics from dust, metal particles, moisture, and other contaminants that accumulate in window-facing positions near shop entrances and HVAC airflow. The display is rated for operation from 0°C to 40°C without direct sunlight (0°C to 30°C with direct sunlight), covering the full range of typical retail environments including non-climate-controlled spaces. Combined with the 50,000-hour panel lifetime and 24-7 duty rating, these protections give end users high confidence in long-term reliability without frequent servicing.

Portrait and Landscape Orientation with Installation Assist

The 55XS4P-B supports both landscape and portrait mounting, with VESA 600×400 mm compatibility and optional dedicated wall mounts (WM-L640V landscape, WM-P640V portrait) sold separately. A built-in Leveler Tool displays the tilt of the device during installation for precise alignment, while the Gyroscopic (Acceleration) Sensor automatically detects mounting orientation and can trigger warning messages or correct the display direction if installed incorrectly. For integrators managing complex multi-display window arrays, this reduces commissioning time and the risk of misaligned units reaching the end customer.