75TR3BF

What the LG 75TR3BF is

The LG 75TR3BF is a 75-inch interactive digital board from the CreateBoard TR3BF series. It pairs a UHD display and infrared touch with an Android operating system, so lessons and meetings can be run from the board itself. LG has discontinued this model, so this page is written for organisations that already own one and for buyers comparing it with other boards.

Display, touch and writing performance

The IPS panel shows 3,840 x 2,160 pixels, four times the pixel count of Full HD, so small text in documents and fine detail in photos stay crisp when zoomed. Typical brightness is 330 cd/m² with the protection glass fitted. The 1,100:1 contrast ratio and 178 x 178 viewing angle keep content readable from seats across the room. The 4T anti-glare protection glass has 87% transmission.

The infrared touch layer registers objects from Ø3 mm and specifies an accuracy of 1.5 mm. Up to 20 touch points and 10 writing points can be active at once, and two writing pens are included. Palm erasing lets presenters remove text and images with a hand, a practical alternative to switching to an eraser tool.

Connectivity and the built-in OPS slot

• Three HDMI inputs, one RGB and audio input, and an HDMI output
• Three USB 3.0 ports and three USB 2.0 ports, plus two USB Touch Out ports
• RS232C and RJ45 for external control, with optical and audio outputs
• OPS slot for an OPS desktop mounted at the back of the board

Because the board has an OPS slot, you can fit a compatible OPS computer instead of running a separate external PC to the room. The Chrome browser built into Android lets staff search the web from the board. Air Class can link up to 30 students on one network for voting and answering. Touch works with Windows 7, 8 and 10, Windows XP, Linux, Mac and Android, with one-point touch only on XP, Linux and Mac.

Where it fits in Qatar

Several settings in Qatar suit this board:

• A secondary classroom in Education City or a private school in Al Wakrah, where a 75-inch screen serves a moderate-sized room and students can join on their own devices.
• A meeting room in West Bay or The Pearl, where staff share laptop screens over the same network.
• A training room in the Industrial Area, where a computer module fitted in the OPS slot replaces a separate desktop.

The operating range is 0 °C to 40 °C with 10% to 80% humidity. Summer temperatures in Qatar can exceed 45 °C outside the building, so install the board only in air-conditioned rooms, and check the cooling capacity of rooms with large sun-facing glazing before mounting.

Planning the installation and power

The head weighs 53 kg and the packed weight is 85 kg, with dimensions of 1,709 x 1,020 x 86 mm. It has a handle and a VESA 800 x 400 mount interface. For a wall mount, the wall structure, mounting height and cable routing should be checked first, and SmartRooms Qatar provides free site surveys for this purpose.

The power supply accepts 100-240V at 50/60Hz, with typical consumption of 175 W and maximum of 294 W. The box includes a 3 m power cord, a 3 m HDMI cable, a 5 m USB cable, two writing pens, a remote control, a user manual and a quick start guide. The built-in speakers are rated at 24 W (12 W + 12 W).

Request a quote for a current replacement

Because the 75TR3BF is discontinued, the most useful next step is a quote for a current equivalent or compatible replacement. Tell us the number of boards, the room sizes, the mounting arrangement and the ports your laptops and room systems use. SmartRooms Qatar usually returns quotations within one working day, accepts purchase orders (LPOs) and government tenders including Monaqasat, and delivers to all eight municipalities of Qatar. Request your quote today.