BRIGHTNESS4,000 nit (Typ.) / 3,200 nit (Min.)Typical
RUNTIME24-724 h x 7 days
VESA MOUNT600 x 400 mmVESA
ORIENTAIONLands./PortraitMounting
BEZEL WIDTH13.8 mmAll sides (even)
75-inch high-brightness window-facing signage display
LG 75XS4P-B
The LG 75XS4P-B is a purpose-built 75-inch window-facing display designed to attract passersby through shop or retail windows. With 4,000 nits of peak brightness and an IPS M+ panel, it delivers vivid, readable content even under direct sunlight — including for viewers wearing polarised sunglasses. Running webOS 6.0 on a quad-core SoC, the display operates as a standalone signage player without any external media device. Its UL-verified anti-discoloration technology prevents yellowing over time, protecting long-term image quality. Built for demanding 24-7 operation, it incorporates conformal coating for dust and moisture protection, a gyroscope sensor for correct orientation detection, and an upgraded quiet mode for noise-sensitive environments such as estate agencies or showrooms.

4,000 Nits Through Glass — Daylight-Visible Content
Window-facing installations face a fundamental challenge: glass, direct sunlight and ambient glare dramatically reduce perceived brightness. The 75XS4P-B addresses this with 4,000 nits typical output (3,200 nits guaranteed minimum) via an IPS M+ WRGB panel — roughly eight times the brightness of a standard commercial display. Content remains vivid and fully legible even in harsh summer sunlight, and critically remains visible to passersby wearing polarised sunglasses, which can otherwise block conventional LCD panels entirely. This makes the display effective throughout opening hours without any manual brightness adjustment, giving retail and hospitality businesses a consistently impactful shop-front presence.

UL-Verified Anti-Discoloration — No Yellowing Over Time
Displays installed close to glass are exposed to UV radiation and temperature extremes that cause conventional LCD panels to yellow and degrade over months of operation. LG's XS4P-B is the world's first display to earn UL Verification for anti-discoloration characteristics, confirming through independent third-party testing that the panel resists this yellowing. In practice this means the colour accuracy and perceived brightness the display delivered on day one is preserved across years of use — a meaningful long-term quality assurance for businesses whose brand imagery depends on accurate colour rendering, and a concrete argument against buying lower-specification alternatives.
4,000 nits. Through glass. 24-7.
World's first UL-verified anti-discoloration · 3-year limited warranty

Standalone webOS 6.0 — No External Player Needed
The built-in quad-core SoC running webOS 6.0 means the display can schedule, play and manage content entirely on its own — no external media player box required. The platform supports local content scheduling, USB plug-and-play playback, PIP and PBP (two windows simultaneously), tile mode up to 15×15, gapless playback and Play via URL for cloud-sourced content. Internal 16 GB eMMC storage holds playlists locally, so the display continues playing if the network drops. For system integrators this eliminates an additional device to power, mount, cool and support, reducing total installation cost and ongoing maintenance overhead.

Remote Management via SuperSign, ConnectedCare and Control Manager
The 75XS4P-B integrates with LG SuperSign CMS, SuperSign Cloud, ConnectedCare device management and LG Control Manager — giving operators full remote visibility and control over content, scheduling, brightness, power state and health monitoring from a browser or mobile device. LAN daisy-chaining lets multiple displays be controlled through a single master connection, simplifying network cabling in multi-screen window installations. SNMP support, status mailing and Wake on LAN enable professional-grade fleet management. For a business managing several locations or a large retail estate, this means content changes and health checks can be done centrally without dispatching staff to each site.

Conformal Coating and Wide Operating Temperature
The power and circuit boards are protected by a conformal coating that shields against dust, metal particles, moisture and corrosive contaminants — a critical feature for window-mounted displays that can experience condensation cycling and airborne debris from HVAC, construction or outdoor pollution. The operating temperature range of 0°C to 40°C (without direct sunlight) and 0°C to 30°C (with direct sunlight) means the display functions reliably in unheated shop fronts during winter or sun-exposed windows in summer. This durability reduces the risk of unexpected failures and the support calls that come with them.

Upgraded Quiet Mode — Noise-Sensitive Environments
At full 4,000 nit output the cooling fan is audible — a genuine concern in settings like estate agencies, premium showrooms or boutiques where customers spend time close to the display. The XS4P-B's Upgraded Quiet Mode reduces fan speed to deliver 2,500 nits — still far above what any standard commercial display can offer — with minimal audible noise. This allows the display to be deployed comfortably in customer-facing interiors where a loud fan would undermine the experience, without having to sacrifice practical visibility through the window.

Failover and Redundant Signal Handling
The 75XS4P-B supports automatic failover, switching to a backup source if the primary signal is lost. Combined with the local content scheduling and USB plug-and-play fallback on webOS 6.0, the display can maintain continuous output even if the network or a connected source device fails. For high-visibility window installations — where a dark or frozen screen is immediately visible to passing customers and directly reflects on the business — this resilience is a practical requirement rather than a luxury feature.

Portrait and Landscape with Built-In Installation Aids
The 75XS4P-B supports both portrait and landscape mounting orientations. A built-in gyroscope sensor detects incorrect installation direction and displays a warning — preventing misconfigured deployments. The integrated leveller tool gives installers real-time tilt feedback for precise alignment, important when the display must sit flush against a window or wall surface for professional appearance. Content can be rotated in software to match the physical orientation, including external input rotation. These features reduce installation time and the chance of callbacks to correct alignment issues.