LG 75 Inch Interactive Display Board (TR3DJ-B)


  • UHD (3,840×2,160) IPS Display
  • IR Multi touch point (Max 20 points/Max 10 writing)
  • Dual Pen & Dual Color
  • Easy Connection & Sharing


Transform Learning and Collaboration with the 65” IPS UHD IR Multi-Touch Interactive Whiteboard

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Immerse yourself in a world of interactive possibilities with the TR3DJ series, a 65” IPS UHD IR Multi-Touch Interactive Whiteboard that elevates your touch and writing experiences to new heights. Designed to foster collaboration and enhance presentations, this interactive whiteboard combines cutting-edge features with user-friendly functionalities.

Smooth Touch & Writing Experience: The TR3DJ series offers a seamless touch and writing experience with multi-touch capabilities supporting up to 20 touch points simultaneously. The tempered glass with low parallax ensures precise touch and an excellent writing surface, making collaboration more lifelike and efficient.

Dual Pen & Dual Color: Unleash your creativity with the dual pen and dual-color functionality. Write or draw with two different colors simultaneously, allowing for dynamic and engaging presentations.

Easy Writing Experience: Write and annotate effortlessly on virtually any input source, promoting a fluid and natural writing experience that adapts to your teaching or presentation style.

Easy Connection & Sharing:

  • Built-in OPS Slot: Mount your OPS device seamlessly to the back of the digital board without the hassle of external connections, ensuring a clean and organized setup.
  • ScreenShare Pro: Showcase up to six shared screens in real-time, enabling collaboration and sharing across various devices and platforms, including iOS, Mac, Windows, Android, and Chrome OS.
  • Bluetooth Connectivity: Enjoy a wireless connection to speakers, a mouse, or a keyboard, facilitating a hybrid environment for smooth online and offline meetings and classes.

User-Friendly Experience:

  • Embedded Web Browser: Easily browse the web without the need for an external device, providing quick access to information during presentations or classes.
  • Toolbar: Access essential tools easily with the user-friendly toolbar, featuring annotation capabilities on various file types and highlighting with the Spotlight function. Manage class time effectively with a built-in countdown and stopwatch feature.

Audio Experience: Immerse your audience in high-quality sound with built-in speakers on both sides of the front bezel, ensuring a clear and engaging audio experience.

USB Block: Experience convenience and streamlined connectivity with the integrated USB block, allowing you to connect and share content effortlessly.

Elevate your interactive presentations and teaching sessions with the 65” IPS UHD IR Multi-Touch Interactive Whiteboard from the TR3DJ series. It’s not just a display; it’s a gateway to a more engaging and collaborative learning environment.

SKU: LG14100 Category:


Screen Size 75”
Panel Technology IPS
Backlight Type Direct
Aspect Ratio 16:9
Native Resolution 3,840 x 2,160 (UHD)
Brightness (Typ., cd/m², w/ Protection Glass) 330
Contrast Ratio 1,100:1
Viewing Angle (H x V) 178 x 178
Response Time 8ms (G to G)
Life Time (Typ.) 30,000 Hrs (Min.)
Operation Hours 16 Hrs
Orientation Landscape
(Input) Video / Audio HDMI (3), RGB/Audio In
(Input) External Control RS232C In
(Input) USB USB 2.0 (3, Front : 2ea, Bottom side: 1ea Only for software update), USB 3.0 (3), Touch Out(USB2.0,B Type) (2)
(Output) Video / Audio Optical Output/Audio Out
Bezel Color Black
Bezel Width (Off Bezel) Top/Right/Left:17.7mm, Bottom:45.7mm
Monitor Dimension (W × H × D) 1,709 × 1,020 × 86 mm
Weight (Head) 53kg
Carton Dimensions (W x H x D) with pallet 1,950 × 1,266 × 285 mm
Packed Weight 85kg
Handle Yes
VESA™ Standard Mount Interface 800 x 400
Operation Temperature 0°C to 40°C
Operation Humidity 10% to 80%
Power Supply 100-240V~, 50/60Hz
Power Type Built-In Power
Power Consumption (Typ. / Max.) 175/294 W
Speaker Built in 24W (12W + 12W)
Safety CB/NRT
ErP/Energy Star Yes (EU Only)/No
OPS type compatible Yes
Basic Power Cord 3 M1, USB Cable (Type A-Type B) 5 M1, HDMI Cable 3 M1, Writing Pen2pcs, User Manual, QSG, Carton Box, Remote Control
Embedded Writing Software Yes
Touch type IR
Available object size for touch Ø3mm↑
Response Time 60ms↓ (Android)/100ms↓ (Windows)
Accuracy 1.5mm
Interface USB 2.0
Protection Glass Thickness 4T (Anti-Glare)
Protection Glass Transmission 87%
Operating System Support Windows 7/8/10/WindowsXP/Linux/Mac/Android (WindowsXP/Linux/Mac Support one point touch)
Multi-touch point Max 20 points/Max 10 writing

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