LG 55TR3DK-B CreateBoard 55" UHD 4K Touchscreen Commercial Monitor

The LG 55TR3DK-B is a 55 inch interactive display built for teachers, presenters, and collaborative teams that rely on clear visuals and quick input from the audience. It delivers UHD 4K resolution on an IPS panel, so participants at the back of the room see the same crisp detail and color consistency as those at the front.

Touch interaction feels natural and immediate. Infrared sensing recognizes up to forty simultaneous touch points, allowing several people to write, draw, and move content together. With palm rejection and low latency, handwriting responds almost like a real whiteboard.

The display runs Android 11, which means apps such as Google Drive, Docs, and Sheets open without the need for an external computer. If a presenter prefers a personal device, the front connections include HDMI and USB C for a clean, single-cable link, and an OPS slot accepts a Windows or Linux compute module when full desktop software is required.

Wireless collaboration is equally straightforward. Using the built-in Wi-Fi 6 radio, up to nine participants can cast screens side by side. This helps a class compare project drafts or lets a hybrid meeting collect input from laptops, tablets, and phones without rearranging cables.

Security tools keep information private. A screen lock protects the display between sessions, and USB lock mode blocks unauthorized file transfers. Two front-facing speakers rated at 15 watts project voices and video clips toward the audience, so most rooms will not need external audio.

Practical features, simple operation, and robust connectivity make the 55TR3DK-B a smart choice for K-12 classrooms, higher education lecture halls, corporate training spaces, and huddle rooms where fast setup and intuitive interaction matter.

• Display measures 55 inches and shows UHD 4K resolution on an IPS panel
• Infrared touch technology accepts up to forty simultaneous inputs
• Android 11 operating system with access to Google Play apps
• Built-in Wi-Fi 6 and Bluetooth 5.0 for modern wireless links
• Front connections include HDMI and USB C; OPS slot supports an optional PC module
• Wireless screen sharing works with up to nine devices at once
• Screen lock and USB lock mode enhance security
• Two front-facing speakers deliver 15 watts of audio output