LG 75TR3DJ 75" Class TR3DJ Series 4K UHD IPS Interactive Digital Board (75TR3DJ-B)

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LG 75TR3DJ 75" Class TR3DJ Series 4K UHD IPS Interactive Digital Board (75TR3DJ-B)

LG 75TR3DJ 75" Class TR3DJ Series 4K UHD IPS Interactive Digital Board (75TR3DJ-B)

Vibrant 75-inch 4K UHD Workspace: Brings presentations and high-definition media to life with uniform brightness and razor-sharp text on a premium IPS panel.

Responsive 20-Point Multi-Touch: Detects up to 20 simultaneous touch points and 10 concurrent writing inputs for fluid, side-by-side group ideation.

Native Android 9.0 Platform: Features an autonomous, built-in computing core running web browsers, office tools, and media players without an external PC.

AirClass Audience Interaction: Connects up to 30 local participants wirelessly, allowing instantaneous screen mirroring, feedback collection, and live polling.

Industrial 4mm Anti-Glare Shielding: High-durability tempered glass guards the display surface while minimizing ambient light glare from bright office rooms.

LG
Brand : LG
Model : 75TR3DJ

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Application & Use Cases

LG 75TR3DJ Application Use Cases (550 Characters):
The LG 75TR3DJ is optimized for dynamic, high-engagement corporate and institutional settings across the GCC. In medium-sized corporate huddle spaces and boardrooms, it runs as a dedicated video conferencing and whiteboarding tool. In training environments and school classrooms, its 20-point touch sensor grid and AirClass mirroring application drive group engagement. Furthermore, its ultra-sharp 75" 4K layout makes it an excellent choice for medical review panels, architect review rooms, and public interactive information boards.

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  • Specifications
  • Details
Technical Parameter Industrial Specification
Brand & Model LG 75TR3DJ (75TR3DJ-B)
Screen Size & Panel Technology 75-inch In-Plane Switching (IPS) Panel
Native Resolution 3840 x 2160 (4K Ultra HD / 2160p)
Aspect Ratio 16:9
Display Brightness 390 cd/m² (Nits) Without Protection Glass / 350 cd/m² With Glass
Viewing Angles (H / V) 178° / 178° Ultra-Wide Viewing Angle
Contrast Ratio 1200:1 (Dynamic CR: 1,000,000:1)
Touch Technology Type Advanced Infrared (IR) Sensing Frame
Simultaneous Touch Points Up to 20 Points of Multi-Touch (Max 10 Points Writing)
Touch Response / Min Object ≤ 10 ms / Ø 3 mm
Protection Glass Features 4.0T (Thickness) Tempered Glass, Anti-Glare (Haze 8%-12%)
Operation Duty Cycle 16 Hours / 7 Days Continuous Commercial Use
Smart Operating Platform Android 9.0 (Embedded Operating System)
Internal Processing Core Quad-Core CPU, Mali-G51 MP4 GPU
Memory & Storage 3 GB RAM | 32 GB eMMC Internal Flash Storage
Connectivity (Input) 3 x HDMI, 1 x RGB (VGA), 1 x Audio In, 4 x USB 2.0/3.0 (Type-A)
Connectivity (Output) 1 x HDMI Out, 1 x Audio Out, 1 x Optical Out
Touch Interface Routing 2 x USB Type-B Upstream Ports
External Device Control RS232C In, RJ45 (LAN) In
Wireless Connectivity Built-in Dual-Band Wi-Fi (802.11 a/b/g/n/ac) & Bluetooth
Integrated Audio Systems Built-in Dual Speakers (12W + 12W Stereo)
Bezel Width Top/Left/Right: 17.7 mm, Bottom: 45.7 mm
Physical Dimensions (W x H x D) 1710 mm x 1020 mm x 86 mm (Without Wall Mount)
Net Product Weight 53.0 kg
VESA Mount Standards 800 mm x 400 mm

Professional 4K Canvas for Modern Huddle and Meeting Rooms

The LG 75TR3DJ 75-inch Interactive Digital Board is an advanced, mid-to-large format smart solution purpose-built to foster engagement, streamline collaboration, and maximize operational productivity. Brought to you by Trianze Tech, the definitive hub for corporate AV integration and hardware distribution across Dubai, Abu Dhabi, and the GCC, this premium 4K UHD smart board perfectly addresses the space requirements of medium corporate meeting rooms, high-tech school classrooms, and design studios. Utilizing an industry-standard IPS panel, it offers true-to-life color rendering and sharp contrast profiles across ultra-wide 178-degree horizontal and vertical viewing paths.

High-Precision Interactivity and Natural Dual-Pen Feedback

Equipped with a highly optimized, ultra-responsive Infrared (IR) touch framework, the LG 75TR3DJ-B tracks rapid touch and stylus commands with an unnoticeable response delay of less than 10ms. Capable of processing 20 points of simultaneous multi-touch and 10 points of continuous handwriting, it permits multiple team members to brainstorm on the glass concurrently. The intelligent software identifies objects as small as 3mm in diameter, allowing for precise notations, while the dual-pen system enables separate users to execute drawings with unique brush weights and colors at the exact same time.

Smarter Standalone Workflows via Android 9.0 and AirClass

Operating on a robust, embedded Android 9.0 operating system with 32GB of internal flash memory, the display operates flawlessly as a standalone system. Users can navigate built-in web browsers, run native document viewers, or execute files directly from USB flash storage. To simplify audience interaction in collaborative corporate workspaces, the display features LG's integrated AirClass platform. Up to 30 meeting members on the same office LAN can access the interface over standard web browsers to cast screen content, vote on decisions, or trade real-time feedback with the central display.

Future-Proof AV Network Interconnects and Central Management

The physical design of the LG 75TR3DJ features clean lines and a highly accessible layout, complete with an array of forward-facing and rear connectivity ports. Triple HDMI lines, an active VGA input, and multiple USB ports ensure easy pairing with corporate laptops, while dual USB-B upstream ports route touch coordinates smoothly. The display also features an HDMI Output port, enabling IT engineers to mirror live content and annotations to large-scale video wall processors or recording suites. When choosing Trianze Tech for your AV layout deployment, you gain elite enterprise hardware coupled with professional configuration, smooth local logistics, and expert technical support.

Technical Parameter Industrial Specification
Brand & Model LG 75TR3DJ (75TR3DJ-B)
Screen Size & Panel Technology 75-inch In-Plane Switching (IPS) Panel
Native Resolution 3840 x 2160 (4K Ultra HD / 2160p)
Aspect Ratio 16:9
Display Brightness 390 cd/m² (Nits) Without Protection Glass / 350 cd/m² With Glass
Viewing Angles (H / V) 178° / 178° Ultra-Wide Viewing Angle
Contrast Ratio 1200:1 (Dynamic CR: 1,000,000:1)
Touch Technology Type Advanced Infrared (IR) Sensing Frame
Simultaneous Touch Points Up to 20 Points of Multi-Touch (Max 10 Points Writing)
Touch Response / Min Object ≤ 10 ms / Ø 3 mm
Protection Glass Features 4.0T (Thickness) Tempered Glass, Anti-Glare (Haze 8%-12%)
Operation Duty Cycle 16 Hours / 7 Days Continuous Commercial Use
Smart Operating Platform Android 9.0 (Embedded Operating System)
Internal Processing Core Quad-Core CPU, Mali-G51 MP4 GPU
Memory & Storage 3 GB RAM | 32 GB eMMC Internal Flash Storage
Connectivity (Input) 3 x HDMI, 1 x RGB (VGA), 1 x Audio In, 4 x USB 2.0/3.0 (Type-A)
Connectivity (Output) 1 x HDMI Out, 1 x Audio Out, 1 x Optical Out
Touch Interface Routing 2 x USB Type-B Upstream Ports
External Device Control RS232C In, RJ45 (LAN) In
Wireless Connectivity Built-in Dual-Band Wi-Fi (802.11 a/b/g/n/ac) & Bluetooth
Integrated Audio Systems Built-in Dual Speakers (12W + 12W Stereo)
Bezel Width Top/Left/Right: 17.7 mm, Bottom: 45.7 mm
Physical Dimensions (W x H x D) 1710 mm x 1020 mm x 86 mm (Without Wall Mount)
Net Product Weight 53.0 kg
VESA Mount Standards 800 mm x 400 mm
Frequently asked

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Yes, when sourcing your display through Trianze Tech in Dubai or Abu Dhabi, you can customize your installation kit. We supply heavy-duty fixed wall mounts, articulating brackets, and premium mobile trolley stands to suit your corporate room configuration, backed by a professional, local on-site engineering team.
Thanks to the built-in Android 9.0 architecture and a powerful internal quad-core processor, the display can access its native web browser, launch media players, and open presentations or MS Office files directly from internal flash memory or external USB drives without requiring an external laptop or PC.
The physical HDMI Output port acts as an active hardware loop-through. This allows you to clone anything currently shown on your 75" display—including live drawings, web pages, and annotations—and forward the video signal directly to an external recording system, a separate projector, or a secondary display monitor in a deep meeting room.
The screen surface is constructed from high-durability 4.0mm thick tempered glass featuring an advanced anti-glare treatment (8% to 12% haze rating). This specific layer scatters incoming glare from direct sunlight or bright office overhead LED arrays, preserving clear contrast and fine text lines without compromising color depth.
Yes, the interactive touch grid of the 75TR3DJ functions as an HID (Human Interface Device) compliant system over a simple USB connection. By running an HDMI cable for video and a standard USB Type-A to Type-B cable for touch data, your Windows 11 laptop will immediately recognize multi-touch gestures and ink inputs without installing manual device drivers.