The LG 75UL3J-B is a professional 75-inch 4K UHD digital signage display designed for corporate, retail, education, hospitality, meeting rooms, and commercial environments. Its large-format 3840 × 2160 IPS panel, integrated webOS 6.0, built-in Wi-Fi, speakers, and professional content-management features make it a complete solution for presentations, advertising, information displays, and business communications.

75-Inch 4K UHD IPS Display

The expansive 75-inch IPS panel delivers a native 3840 × 2160 Ultra HD resolution, providing sharp text, detailed graphics, and clear 4K content across a large viewing area.

With 330 nits typical brightness, a 1200:1 contrast ratio, and support for 1.07 billion colors, the display provides vibrant and detailed image reproduction for professional signage applications. Wide 178° horizontal and vertical viewing angles help maintain consistent image quality when viewed from different positions.

Built-In webOS 6.0 Smart Signage Platform

LG's integrated webOS 6.0 platform allows businesses to manage and display content without relying entirely on external media players.

The system supports professional signage functions such as:

• Embedded content management

• Local content scheduling

• Group Manager

• USB Plug & Play

• Screen Share

• Play via URL

• Failover

• Display rotation

• Gapless playback

• Network synchronization

• Smart Energy Saving

• Wake on LAN

• HDMI-CEC

• Third-party AV control integration

These capabilities make the 75UL3J-B suitable for centralized commercial signage deployments and managed business environments.

LG One Share Compatibility

The LG 75UL3J-B is compatible with LG One Share, providing a convenient wireless presentation solution for compatible PCs.

Using the appropriate USB transmission unit and embedded Wi-Fi, users can share their computer screen with the display and access basic display controls such as volume and picture settings. Office Meeting Mode can also display meeting agendas or notes before a meeting begins.

Designed for Professional Signage

The display supports both portrait and landscape orientation and is rated for operation up to 16 hours per day, 7 days per week, making it suitable for regular commercial use in offices, stores, educational institutions, reception areas, and meeting spaces.

Flexible Professional Connectivity

The LG 75UL3J-B offers multiple connectivity and control options for professional AV installations:

• 3 × HDMI inputs

• 2 × USB 2.0 Type-A ports

• RJ45 LAN

• RS-232C input and output

• Audio output

These interfaces provide convenient integration with PCs, media players, corporate AV systems, and centralized control solutions.

Built-In Wi-Fi & Internal Storage

The display includes built-in Wi-Fi and 8GB internal memory, enabling flexible content distribution and playback.

Additional hardware features include a temperature sensor, auto-brightness sensor, and local key operation, helping support professional installations and day-to-day display management.

Built-In Speakers

Integrated speakers provide convenient audio playback for presentations, promotional media, corporate communications, and other multimedia content without requiring a separate speaker system.

Key Features

• 75-inch professional digital signage display

• 4K UHD 3840 × 2160 resolution

• IPS panel technology

• 60Hz refresh rate

• 8ms GtG response time

• 330 nits typical brightness

• 1200:1 static contrast ratio

• 1,000,000:1 dynamic contrast ratio

• 1.07 billion colors

• DCI 80% color gamut

• 178° wide viewing angles

• Built-in webOS 6.0

• 8GB internal memory

• Built-in Wi-Fi

• Built-in speakers

• Portrait and landscape installation

• 16/7 operation

• LG One Share compatibility

• Compatible with professional AV control systems

• Embedded CMS and scheduling

• LG SuperSign compatibility

• VESA 400 × 400 mm mounting support

• Slim professional signage design

Technical Specifications

Brand: LG

Model: 75UL3J-B

SKU: 123845

Product Type: Professional Digital Signage Display

Display

• Screen Size: 75 Inches / 190.5 cm

• Panel Technology: IPS

• Backlight Type: Direct

• Resolution: 3840 × 2160 UHD

• Aspect Ratio: 16:9

• Refresh Rate: 60Hz

• Brightness: 330 nits (Typ.)

• Contrast Ratio: 1200:1

• Dynamic Contrast Ratio: 1,000,000:1

• Color Gamut: DCI 80%

• Color Depth: 1.07 Billion Colors

• Response Time: 8ms GtG

• Viewing Angle: 178° × 178°

Operation

• Operating Hours: 16 Hours/Day, 7 Days/Week

• Orientation: Portrait / Landscape

Connectivity

• HDMI × 3

• USB 2.0 Type-A × 2

• RJ45 LAN

• RS-232C Input

• RS-232C Output

• Audio Output

Smart & Professional Features

• webOS 6.0

• Embedded CMS

• Local Content Scheduling

• Screen Share

• USB Plug & Play

• Failover

• Play via URL

• Gapless Playback

• Wake on LAN

• HDMI-CEC

• LG One Share Compatibility

• Crestron Connected Compatibility

• Cisco-certified compatibility

Dimensions & Weight

• Display Dimensions: 1678 × 964 × 59.9 mm

• Weight: 31.4 kg

• VESA Mount: 400 × 400 mm

Power

• Typical Consumption: 155W

• Maximum Consumption: 220W

• Standby / DPM: 0.5W

Recommended Applications: Corporate meeting rooms, retail stores, digital advertising, education, reception areas, hotels, restaurants, conference facilities, public information displays, presentations, and professional commercial signage.