BRIGHTNESS4,000 nits (Typ.)Typical
RUNTIME24-724 h x 7 days
VESA MOUNT600 × 400 mmVESA
ORIENTAIONLands./PortraitMounting
BEZEL WIDTH9 / 6.5 / 6.5 / 9 mmTop/Left/Right/Bot.
49-inch ultra-bright window-facing digital signage display
LG 49XS4P-B
The LG 49XS4P-B is a 49-inch Full HD window-facing display engineered for high-impact digital signage in storefronts, retail locations, and any environment where content must punch through glass and compete with direct sunlight. With a remarkable 4,000 nits of typical brightness, it delivers vivid, readable content even under intense daylight conditions — and uniquely holds the world's first UL Verification for Display Anti-Discoloration Characteristics, protecting against screen yellowing over time. Built for continuous 24-7 operation, it runs on webOS 6.0 with an integrated quad-core SoC, eliminating the need for a separate media player. Remote management via LG ConnectedCare and SuperSign Cloud makes it an ideal choice for retailers, franchise operators, and AV integrators deploying scalable signage networks.

4,000-Nit Brightness Built for Window Environments
The 49XS4P-B is purpose-built for window-facing installations where ambient light, direct sunlight, and reflective glass would render a standard commercial display invisible. At 4,000 nits typical (3,200 nits minimum), it delivers enough luminance to overcome glare and keep content legible to passersby — including those wearing polarized sunglasses, which can further attenuate polarized light from standard LCD panels. LG addresses this with a Quarter Wave Plate (QWP) optical filter that compensates for polarization loss. For retailers, this means promotional content and pricing information remain fully visible throughout the day without manual brightness adjustments, maximising footfall engagement during peak daylight hours.

World's First UL-Verified Anti-Discoloration Technology
Continuous exposure to UV radiation through shop windows accelerates panel yellowing — a well-known failure mode that degrades image quality and brand perception over months of operation. LG's XS4P Series earned the world's first UL Verification for Display Anti-Discoloration Characteristics, independently certifying that the panel resists colour shift and yellowing under sustained UV conditions. For end users, this translates directly to lower total cost of ownership: the display maintains accurate, brand-consistent colours without needing early replacement, and the third-party UL certification provides an auditable quality guarantee rather than a manufacturer's self-assessment.
4,000 nits. Through the glass. Day and night.
World's first UL Verified anti-discoloration display · 3-year limited warranty

Standalone webOS 6.0 with Quad-Core SoC
The 49XS4P-B integrates a quad-core System-on-Chip running LG's webOS 6.0 platform, providing a fully capable standalone signage player without an external media player box. The updated Node.js and Chromium engine in webOS 6.0 broadens web-app compatibility, enabling HTML5-based content, cloud-linked data feeds, and third-party integrations out of the box. Features such as local content scheduling, USB plug-and-play, gapless playback, and tile mode (up to 15×15 matrix) are all handled natively. With 16 GB of internal eMMC storage and built-in Wi-Fi and Bluetooth, the display is ready to deploy in locations where running additional cabling to an external player is impractical or costly.

Remote Management via ConnectedCare and SuperSign Cloud
Window-facing installations often require frequent content updates — promotional pricing, seasonal campaigns, and time-sensitive offers. The 49XS4P-B supports LG's full remote management stack: SuperSign CMS, SuperSign Control+, SuperSign Cloud, and ConnectedCare for real-time device monitoring and diagnostics. Operators can push content updates, adjust brightness schedules, check thermal status, and receive fault alerts from any device via the web-based interface. Failover functionality is also included, automatically switching to a backup source if the primary signal drops — ensuring the display never goes dark during business hours. For multi-site rollouts, Auto Set ID, Group Manager, Setting Data Cloning, and SNMP support streamline large-scale deployment and ongoing management.

Conformal Coating and Wide Operating Temperature
Window-facing environments expose electronics to thermal cycling, condensation, and airborne contaminants such as dust and moisture ingress from nearby doors. The 49XS4P-B applies conformal coating to its power board and circuit boards, creating a protective barrier against dust, metal particles, and moisture. The display operates reliably from 0°C to 40°C without direct sunlight (0°C to 30°C under direct sunlight), covering the conditions typical of shop-window installations in temperate and warm climates. This hardware-level durability reduces the risk of premature failure and unplanned maintenance callouts — a significant operational advantage in retail environments where downtime is costly.

Upgraded Quiet Mode for Customer-Facing Spaces
High-brightness displays require active cooling fans, which can generate audible noise — a genuine concern in customer-facing retail spaces such as estate agencies, boutiques, or cafés where ambient noise levels are low. The 49XS4P-B includes an Upgraded Quiet Mode that reduces fan speed while maintaining 2,500 nits of brightness, enough to remain clearly visible through most shop windows while operating near-silently. This makes it viable in environments where a loudly cooling display would disrupt the customer experience or staff conversations, without having to sacrifice daytime readability.

Portrait and Landscape Orientation with Gyroscopic Sensor
The 49XS4P-B supports both landscape and portrait mounting orientations, giving integrators flexibility to match the display format to window dimensions and content layouts. An integrated gyroscopic (acceleration) sensor detects the physical orientation of the installed unit and can issue a warning if the display is mounted incorrectly — for example if a landscape-mode content schedule is loaded onto a portrait-mounted screen. A built-in leveller tool and horizontal sensor assist with precise, tilt-free installation. Optional dedicated wall mount brackets are available from LG for both orientations (WM-L640V for landscape, WM-P640V for portrait), with a VESA 600×400 pattern for third-party mounts.