LG 55TC3D (Discontinued) · Replacements in Qatar

Name: LG 55TC3D 55-inch Interactive Digital Board (Discontinued)
Brand: LG
SKU: lg-55tc3d
Availability: Discontinued

Overview

The LG 55TC3D is a discontinued 55-inch interactive digital board with a Full HD IPS panel, 40-point touch and an OPS slot. Its embedded webOS app supports annotation and screen sharing without a separate PC. Schools, meeting rooms and training areas in Qatar that already run this model, or are comparing boards, can request a quote for a current equivalent or compatible replacement.

What the LG 55TC3D is

The LG 55TC3D is a 55-inch interactive digital board with a 1,920 x 1,080 IPS panel, 450 cd/m² typical brightness and projected-capacitive touch supporting up to 40 points. LG has discontinued this model. The manufacturer data lists it under two variant codes, 55TC3D-B.AMA and 55TC3D-B.AMI.

This page is written for organisations that already run this board, buyers comparing it with newer models, and anyone searching for a replacement. SmartRooms Qatar can quote a current equivalent or a compatible replacement that matches the connections and mounting your room already uses.

Touch, writing and the embedded app

The touch layer uses a silver metal mesh under 3.2 mm anti-glare protective glass. It detects objects wider than 6 mm, positions touches to within 2 mm and handles up to 40 points at once, so several people can write or move content together. Pen stroke thickness changes with writing speed.

The built-in IDB app runs on webOS. Presenters can write, annotate and save notes on the board without a separate computer or extra software licences, and participant laptops can share their screens into the session. A light press on the screen opens a menu for running functions and changing settings.

Connections and expansion

The connection set suits a mix of laptops, PCs and control systems:

Video: three HDMI inputs, one DisplayPort, one DVI-D and one RGB input
USB: USB 3.0 and USB 2.0 inputs, plus a USB 2.0 touch output
Expansion: an OPS slot with its own USB 2.0 connection for the optional OPS Kit KT-OPSA
Control: RS232C in and out, and an RJ45 input for external control

An audio input is also provided. PBP and PIP modes let two sources share the screen in full-screen, original-ratio or sub-screen layouts, which suits a teacher showing a lesson alongside a live feed.

Where it fits in Qatar

A private school in Al Wakrah refitting a classroom could use the 55-inch panel for whole-class teaching, with group annotations saved to the board. In a government office in Msheireb, PBP can show a presentation beside a document or dashboard during one meeting. A training centre in Education City or Lusail can use the touch surface for hands-on sessions.

Heat matters here. The operating range is 0°C to 40°C at 10% to 80% humidity, which is below typical Qatar summer temperatures outside air-conditioned rooms. Install it in a cooled room away from direct sun through windows, and confirm room conditions during a site survey.

What to plan before you order

Head weight 30.1 kg and packed weight 36.1 kg, so plan for two people to lift it and a mount rated for the load.
Panel dimensions 1,276.4 x 751.9 x 63.9 mm; carton 1,369 x 890 x 210 mm; VESA 300 x 300 mm; optional wall mount LSW350A/B.
Typical power consumption of 100 W or less, and 70 W or less in Smart Energy Saving mode.
Software: SuperSign Premium for content management and SuperSign Link for control and monitoring.
Companion IDB DUO minimum requirements: Windows 7 or 10, or macOS 10.12 or 10.13, with 4GB RAM.
Certifications: UL/cUL/CB/TUV/KC for safety; FCC Class A, CE and KCC for EMC.

Because this model is discontinued, check your existing room, mount and PC specification before ordering parts or a like-for-like unit. SmartRooms Qatar offers free site surveys, the right time to confirm wall structure for a 30.1 kg panel.

Request a quote

Send SmartRooms Qatar your room size, mounting type, required inputs and whether you need an OPS slot. Quotations usually follow within one working day, and we deliver to all eight municipalities of Qatar. Request a quote for a current equivalent or compatible replacement.

Highlights

55-inch Full HD IPS panel, 1,920 x 1,080 resolution
450 cd/m² typical panel brightness
Projected-capacitive touch with up to 40 simultaneous points
Embedded webOS app for writing without a separate PC
OPS slot for the optional OPS Kit KT-OPSA
Discontinued by manufacturer; quotes for current equivalents

Classroom fit

At 55″ the farthest student should sit within about 4.1 m (6× the screen height).

Estimated timeline

Quotation within 1 working day · delivery timing depends on stock availability, and we confirm it with your quotation.

Specifications

36 specifications · Source: manufacturer · checked Oct 2026

PANEL3

Screen Size: 55"
Native Resolution: 1,920 x 1,080 (FHD)
Brightness (Module, Typ., cd/m²): 450

CONNECTIVITY3

Input: HDMI (3), DP, DVI-D, RGB, Audio in, USB 3.0, USB 2.0, OPS USB 2.0
Output: Touch USB 2.0 (2)
External Control: RS232C in/out, RJ45 in

PHYSICAL SPECIFICATION6

Bezel Width: 32.7mm (T), 33.4(L/R), 38.8 mm(B)
Monitor Dimension (W x H x D): 1,276.4 x 751.9 x 63.9 mm
Weight (Head): 30.1kg
Carton Dimensions (W x H x D): 1,369 x 890 x 210 mm
Packed Weight: 36.1kg
VESA™ Standard Mount Interface: 300 x 300 mm

ENVIRONMENT CONDITIONS2

Operation Temperature: 0°C to 40°C
Operation Humidity: 10% to 80%

POWER CONSUMPTION2

Typ.: ≤ 100W
Smart Energy Saving: ≤ 70W

STANDARD(CERTIFICATION)2

Safety: UL/cUL/CB/TUV/KC
EMC: FCC Class "A"/CE/KCC

SOFTWARE COMPATIBILITY2

Content Management Software: SuperSign Premium
Control and Monitoring Software: SuperSign Link

MINIMUM REQUIREMENTS FOR LG IDB DUO8

OS (Windows 32bit or 64bit): Windows 7, Windows 10
OS (macOS): macOS 10.12 Sierra, MacOS 10.13 High Sierra
CPU (Windows): 2.7GHz+ Dual Core Broadwell or higher
CPU (macOS): Any CPU which supports Sierra or High Sierra
Memory: 4GB RAM
Hard Drive: 1GB of free space
Graphics Hardware (Windows): Intel Iris or higher, Nvidia, ATI
Graphics Hardware (macOS): Any GPU which supports Sierra or High Sierra

ACCESSORY2

Basic: Remote Controller (include battery 2ea), Power Cord, QSG, HDMI (3M), Regulation Book, Phone to RS232C Gender, Touch Pen (2ea), Touch Pen Tip (1ea)
Optional: OPS Kit (KT-OPSA), Wall Mount (LSW350A/B)

TOUCH6

Touch type: P-Cap (Ag Metal Mesh)
Available object size for touch: more than Ø 6mm
Accuracy: 2mm
Interface: USB 2.0
Protection Glass Thickness: 3.2T (Anti-Glare)
Multi touch point: Max. 40 Points

Downloads

6 files from the manufacturer

PDF Manuals & guides ARA.pdf 2.3 MB PDF Manuals & guides ENG.pdf 2.4 MB PDF Manuals & guides ENG.pdf 2.4 MB PDF Manuals & guides MFL70340001_05_200421.pdf 6.0 MB PDF Manuals & guides MFL70340003_03_180927.pdf 6.0 MB URL Software & firmware · Opens on manufacturer site Software & Drivers (support page)

Questions about 55TC3D

Is the LG 55TC3D still sold by LG?

No. LG has discontinued the 55TC3D, which the manufacturer data lists under two variant codes, 55TC3D-B.AMA and 55TC3D-B.AMI. If your organisation in Doha, Lusail or elsewhere in Qatar already runs one or needs a replacement, SmartRooms Qatar can quote a current equivalent or a compatible replacement. Share your room size, mounting method and required inputs so the quotation matches your existing setup.

Which Qatar sites suit a 55-inch board like this?

Classrooms, meeting rooms and training rooms of about this size suit it best. A private school in Al Wakrah refitting a classroom can use the 1,920 x 1,080 IPS panel for whole-class lessons, and the IPS viewing angle keeps content readable for pupils seated at the side of the room. Larger lecture halls usually need a bigger panel, and SmartRooms Qatar can advise on that choice.

Do presenters need a PC to write and annotate?

Not for the embedded app. The IDB app runs on webOS, so presenters can write, annotate and save notes on the board without a separate computer or extra software licences. For the companion IDB DUO software, the manufacturer lists minimum requirements of Windows 7 or 10, or macOS 10.12 or 10.13, with 4GB RAM and 1GB of free disk space.

How many touch points does it support, and what can touch it?

The projected-capacitive touch layer supports up to 40 touch points at once, so several students can write together. It detects objects larger than 6 mm in diameter, with a stated accuracy of 2 mm. The surface sits under 3.2 mm anti-glare protective glass, which helps readability in bright classrooms. Pen thickness adjusts to writing speed.

Can it show a lesson and a live feed side by side?

Yes. PBP and PIP modes show two different sources on one screen, in full-screen, original-ratio or sub-screen layouts. A training centre in Education City could show a presenter's slides beside a live laptop feed during a hands-on workshop without switching inputs. Decide which two sources you will use before the session so the layout is set in advance.

Which ports and control connections does it have?

The board has three HDMI inputs, one DisplayPort, one DVI-D, an RGB input and an audio input. It also provides USB 3.0 and USB 2.0 inputs, a USB 2.0 touch output, an OPS USB 2.0 connection, RS232C in and out, and an RJ45 input for external control. Check which of these your laptops, PCs and control system need before ordering.

Can it be installed in a room that gets hot in summer?

Qatar summer temperatures can exceed 45°C, but this board's operating range is 0°C to 40°C, with 10% to 80% humidity. Install it in an air-conditioned room away from direct sun through windows, and confirm the room's conditions during the free site survey. Avoid unconditioned spaces in summer, such as open corridors or outdoor areas.

How heavy is it, and how should it be mounted?

The head weighs 30.1 kg and the packed weight is 36.1 kg, so plan for two people to lift it. It uses a 300 x 300 mm VESA interface, and the optional wall mount LSW350A/B is available from the manufacturer. SmartRooms Qatar offers free site surveys, which is the right time to check wall structure and mounting height before installation.

What is its power consumption?

Typical power consumption is 100 W or less, dropping to 70 W or less in Smart Energy Saving mode. A school in Al Rayyan fitting out ten rooms with these boards should add the totals to its load plan and confirm the supply and sockets with its electrical contractor before installation day.

What is included in the box?

The basic package includes a remote controller with two batteries, a power cord, a quick setup guide, a 3 m HDMI cable, a regulation booklet, a phone-to-RS232C gender adapter, two touch pens and one spare touch pen tip. The OPS Kit KT-OPSA is an optional extra sold separately. Ask SmartRooms Qatar to confirm the full package when you request a quote.

Which certifications does it carry?

The manufacturer lists UL, cUL, CB, TUV and KC safety certifications, plus FCC Class A, CE and KCC EMC certifications. Procurement teams preparing a government tender or a university purchase can include these in their evaluation. Ask SmartRooms Qatar to confirm which certification documents are available for the variant you are considering.

How do schools and government bodies order this board?

Organisations can order with a purchase order (LPO), and government buyers can respond to Monaqasat tenders. Payment can be made by bank transfer, cheque or purchase order. SmartRooms Qatar usually issues quotations within one working day and delivers to all eight municipalities of Qatar. Because this model is discontinued, the quotation should name the current equivalent or compatible replacement you approve.