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LG Intros Interactive Classroom Displays

LG Business Solutions has introduced a new series of interactive classroom displays, the TR3DJ series, available in sizes up to 86 inches.

The new displays are designed for broad compatibility and come with Android 8.0 installed. According to LG, "The TR3DJ series displays are designed to support virtually any application, content management system, learning platform or online conferencing solution that a school uses to engage students in-class and remotely."

There are currently three models in the TR3DJ series — the 65-inch 65TR3DJ-B, 75-inch 75TR3DJ-B and 86-inch 86TR3DJ-B — each with virtually identical specs, including:

  • 3,840 x 2,160 (4K/UHD) resolution;

  • 1,100-to-1 contract ratio;

  • 350 cd/m² brightness, except for the 86-inch model, which is listed at 330 cd/m²;

  • 178-degree vertical and horizontal viewing angle;

  • 16:9 aspect ratio;

  • 8ms response time;

  • IR Multi touch point (maximum 20 points/maximum 10 writing);

  • Dual pen and dual color;

  • VESA mount compatibility;

  • Dual 12W speakers;

All of the models also offer:

  • OPS (Open Pluggable Specification) slot for adding a computer module;

  • Bluetooth support;

  • ScreenShare Pro (for showing up to six screen simultaneously);

  • AirClass, with support for up to 30 students (polling, Q&As and messaging).

Connectivity includes three HDMI in ports, one HDMI out port, optical out, RGB, RS-232c, audio in/out, six USB 2.0 ports and three USB 3.0 ports. The models also offer USB Block Mode to "prevent copying data to unauthorized devices."

The displays come with a three-year warranty, "with extended five-year coverage available through select LG dealers serving the education market." For more information, visit the LG site.

About the Author

David Nagel is editorial director of 1105 Media's Education Technology Group and editor-in-chief of THE Journal and STEAM Universe. A 25-year publishing veteran, Nagel has led or contributed to dozens of technology, art and business publications.

He can be reached at [email protected]. You can also connect with him on LinkedIn at or follow him on Twitter at @THEJournalDave (K-12) or @CampusTechDave (higher education).


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