Thursday, 22 October 2026 · 11 Jumada I 1448 AH Sun – Thu · 9:00 – 18:00
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This model is discontinuedThe manufacturer no longer makes it. Request a quote and we will propose the closest current replacement.
Suggested replacements ↓
LG Digital Signage Discontinued

55TA3E

LG 55TA3E 55-inch Built-in Touch Signage Display

Screen size
55"
Brightness
450 nit
Operating temp.
0°C to 40°C
WhatsApp
Priceon request
QuotationWithin 1 working day
DeliveryConfirmed with your quote, based on stock
PDFDownload datasheet (ARA.pdf)
Overview

The LG 55TA3E is a 55-inch Full HD signage display with a built-in infrared touch layer, so no separate overlay is needed. LG has discontinued this model. It offers 450 nits typical brightness without protection glass, up to 10 touch points and the webOS platform. Organisations in Qatar that already run it, or are comparing options, should request a quote for a current equivalent or compatible replacement.

What the LG 55TA3E is and why it is discontinued

The LG 55TA3E is a 55-inch Full HD display from LG's TA3E touch signage series, with touch built into the panel itself. LG has discontinued this model, so this page is written for organisations that already own one, buyers comparing it with newer displays, and anyone who needs a replacement for a unit in service. SmartRooms Qatar can quote a current equivalent or a compatible replacement, matched to the mounting, touch and connectivity needs of your existing installation.

Built-in touch and writing without extra hardware

Infrared touch is integrated into the 55-inch screen, so there is no overlay frame to buy or fit. The display supports up to 10 touch points, allowing several people to work with a wayfinding map, a menu or a collaborative board at the same time. The embedded writing application runs on the display itself, so it can act as a whiteboard without a separate PC or software. The 2.8T protection glass has an anti-glare finish, which is useful where the screen faces windows or bright lobby lighting.

Display performance and where it fits in Qatar

The IPS panel is rated at 450 nits typical brightness without protection glass, and its wide viewing angle keeps content readable when people view it from the side. Full HD resolution at 55 inches suits wayfinding screens, touch boards for classrooms and meeting rooms, and information points.

  • Schools and training centres in Al Wakrah or Education City: a touch board for group work in a mid-sized classroom, or an interactive wall in a shared area.
  • Hotel lobbies and serviced apartments in West Bay or The Pearl: a guest information point or directory screen.
  • Government offices in Msheireb: a visitor check-in or service guide where users interact by touch.

Connectivity, control and content management

Inputs include two HDMI ports, DisplayPort, DVI-D, RGB, an audio input and USB 3.0, with DisplayPort and audio outputs. Control options are RS232C in and out, RJ45, an IR receiver input and a sensor input. The series works with AV control systems, so several displays can be monitored and managed from one location. The webOS platform supports HTML5 apps and an SDK for system integrators. Software listed for this model is SuperSign CMS and SuperSign Control+, and the manufacturer notes that compatibility may change over time. Picture-in-picture and picture-by-picture modes support two sources, and automatic signal switching moves to a backup input when the current signal drops.

Planning the installation in Qatar

At 1,278 x 748.8 x 71.4 mm with a head weight of 28.0 kg (33 kg packed), this display needs a wall or stand plan before delivery. It has a 300 x 300 mm VESA mount interface, and optional accessories include the ST-492T stand, the LSW350B wall bracket, the AM-B330S VESA adapter and the KT-OPSA OPS kit. Power is built in, with typical consumption of 100 W and maximum of 120 W, and the stated input is 100-240 V at 50/60 Hz. The operating range is 0 to 40 degrees Celsius with 10% to 80% humidity. Summer temperatures in Qatar regularly exceed 45 degrees Celsius outdoors, so the unit should be sited in an air-conditioned indoor space, and the environment should be confirmed with the SmartRooms Qatar team before installation. A free site survey checks the wall, sightlines, power points and ventilation before we quote.

To replace an LG 55TA3E or find a current equivalent for a touch signage project, request a quote from SmartRooms Qatar. Tell us the room or site, the mounting and software requirements, and our team will respond with a quotation, usually within one working day.

Highlights

  • Discontinued by LG; quotes available for current equivalents or replacements
  • 55-inch Full HD IPS panel with 450 nits typical brightness
  • Built-in infrared touch supporting up to 10 touch points
  • Embedded whiteboard application that needs no separate PC
  • Two HDMI, DisplayPort, DVI-D and USB 3.0 inputs
  • Operating range 0 to 40 degrees Celsius; optional OPS kit and 300 x 300 mm VESA mount

Estimated timeline

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

Specifications

27 specifications · Source: manufacturer · checked Oct 2026
PANEL2
Screen Size
55"
Brightness (w/o Protection Glass, Typ., cd/m²)
450
CONNECTIVITY3
Input
HDMI (2), DP, DVI-D, RGB, Audio In, USB 3.0
Output
DP, Audio Out
External Control
RS232C In/out, RJ45 In, IR Receiver In, Pixer Sensor In
PHYSICAL SPECIFICATION6
Bezel Width
32.7mm (Even)
Monitor Dimension (W x H x D)
1,278 x 748.8 x 71.4 mm
Weight (Head)
28.0kg
Carton Dimensions (W x H x D)
1,410 x 880 x 207 mm
Packed Weight
33kg
VESA™ Standard Mount Interface
300 x 300 mm
ENVIRONMENT CONDITIONS2
Operation Temperature
0°C to 40°C
Operation Humidity
10% to 80%
POWER2
Power Type
Built-In Power
Power Supply
100-240V~, 50/60Hz
POWER CONSUMPTION2
Typ. / Max.
100W/120W
Smart Energy Saving
70W
SOFTWARE COMPATIBILITY2
Content Management Software
SuperSign CMS
Control and Monitoring Software
SuperSign Control+ *Software compatibility may change over time.
ACCESSORY2
Basic
Remote Controller (2ea batteries included), Power cord, QSG, RGB cable, Regulation book, Phone to RS232C gender, Memory cover
Optional
Stand (ST-492T), Media Player, Wall Bracket (LSW350B), VESA Adapter (AM-B330S), OPS Kit (KT-OPSA)
TOUCH6
Touch type
IR (Scattering)
Scan Time
10ms ↓
Interface
USB 2.0
Protection Glass Thickness
2.8T (Anti-Glare)
Operating Systme Support
Windows 7, Windows 8, Windows 8.1, Windows 10, Android (Kernel Version 3.5 Over), Linux(Kernel Version 3.5 Over), Mac OS X (10.9 Over), Chrome (39 Over)
Multi touch point
Max 10 Points

Downloads

6 files from the manufacturer

Questions about 55TA3E

Is the LG 55TA3E still available from LG?
LG has discontinued the 55TA3E, so new units of this model are no longer offered by the manufacturer. SmartRooms Qatar can quote a current equivalent from LG's signage range or a compatible replacement, based on the size, touch needs and mounting of your site. Quotations are usually provided within one working day. If you already own a unit, send us the model label and the number of units so we can check which accessories and mounts still fit.
What does the built-in touch mean for installation?
The infrared touch function is built into the 55-inch panel, so you do not need to buy or fit a separate overlay frame. The display supports up to 10 touch points, and its 2.8T protection glass has an anti-glare finish. In a school, a hotel lobby or a government service point, this means mounting and powering one unit instead of a screen plus an overlay. A free site survey confirms the wall and sightlines before any mounting work begins.
How bright is the screen, and will it work near windows?
The panel is rated at 450 nits typical brightness measured without the protection glass, which is useful when comparing signage displays. The anti-glare glass reduces reflections, but direct sunlight through windows can still wash out the picture. In Doha, Lusail or Al Rayyan, we suggest placing the screen away from direct sun or using blinds, and confirming the position during the free site survey before the quotation is issued.
Can several 55TA3E displays be managed from one control room?
Yes. The TA3E series is compatible with AV control systems, which let facilities teams manage, monitor and control LG commercial displays from one location. Control ports include RS232C in and out, RJ45, an IR receiver input and a sensor input. For a group of screens across a university campus or a hotel group, specify the control method in the quotation so cabling and any control software are planned together.
Do I need a separate PC to use it as a whiteboard?
No. The embedded writing application runs on the display itself, so a separate PC or software is not needed for whiteboard use. A teacher, trainer or facilitator can create two-way communication during a lesson, workshop or meeting. If the room is also used to present from laptops, check the connections at quotation: the display has HDMI, DisplayPort, DVI-D, RGB and USB 3.0 inputs alongside the writing function.
Which operating systems and video inputs are supported?
Touch support is listed for Windows 7, Windows 8, Windows 8.1 and Windows 10, Android and Linux with kernel 3.5 or later, Mac OS X 10.9 or later, and Chrome 39 or later. Video inputs are two HDMI ports, DisplayPort, DVI-D and RGB, plus an audio input and a USB 3.0 port. Confirm the operating system of your PC or media player before ordering, especially if a Windows 7 machine will run a touch application.
Is this display suitable for a hot or outdoor location in Qatar?
The stated operating range is 0 to 40 degrees Celsius with 10% to 80% humidity. Summer temperatures in Qatar can exceed 45 degrees Celsius, so this model should be installed in an air-conditioned indoor space, not in an outdoor kiosk, an open courtyard or a poorly cooled room. Confirm the environment with the SmartRooms Qatar team before installation, and we will check the room during the free site survey.
How heavy is the panel, and what mount does it need?
The head weighs 28.0 kg and the packed weight is 33 kg, with monitor dimensions of 1,278 x 748.8 x 71.4 mm. It has a 300 x 300 mm VESA mount interface. Optional accessories include the LSW350B wall bracket, the ST-492T stand and the AM-B330S VESA adapter. Because of the weight, we recommend a site survey to check wall load, fixings and access before delivery, whether the site is in Lusail or West Bay.
What power does the display need in Qatar?
The power supply is built in and rated 100-240 V at 50/60 Hz, a range that includes the 240 V, 50 Hz mains used in Qatar. Typical consumption is 100 W and maximum is 120 W, with a Smart Energy Saving figure of 70 W. When planning a school or office with several screens, add these figures to the electrical plan and confirm that a BS 1363 socket and a suitable circuit are available close to the mounting position.
Which optional accessories can be added later, such as an OPS kit or media player?
The optional list includes a media player, the KT-OPSA OPS kit, the ST-492T stand, the LSW350B wall bracket and the AM-B330S VESA adapter. An OPS kit houses a computer module within the display setup, which can simplify signage deployment. Compatibility depends on the specific model and software, so confirm the OPS kit and media player with the SmartRooms Qatar team as part of the quotation.
We are a government body or school. How do we order?
SmartRooms Qatar supplies against purchase orders (LPOs) and government tenders, including Monaqasat. Payment is by bank transfer, cheque or purchase order. For a school ordering several units, we can prepare one quotation covering the displays, mounts and installation, and confirm the lead time based on stock. Because this model is discontinued, the quotation can also include a current equivalent so that your specification is clear for the tender file.
Is it suitable for beacon-based offers in a shopping mall?
The display supports Bluetooth Low Energy (BLE) and Beacon, which lets stores provide coupons and information in real time as shoppers approach. With built-in touch and up to 10 touch points, it can also serve as a store directory or product guide in a mall. For a retail project, state the required function, the number of units and the software when requesting a quote, so the setup and compatibility can be confirmed.

Suggested replacements

LG 55EW5TF-A LG 55EW5TF-A 55-inch Transparent OLED Touch Signage
55″ 1920 x 1080 (FHD) 150/400nit (APL 100%/25%
LG 30EW5TP-A LG 30EW5TP-A 30-inch Transparent OLED Touch Signage Display
30″ 1366x768 (HD) 200/600nit (APL 100%/25%
iiyama T5529AS-B1AG iiyama ProLite T5529AS-B1AG 55-inch All-in-One PCAP Interactive Display
55″ 3840 x 2160 (8.3 megapixel 4K UHD) 500 cd/m²
iiyama TF5539AS-B1AG iiyama ProLite TF5539AS-B1AG 55-inch All-in-One PCAP Interactive Display
55″ 3840 x 2160 @60Hz (8.3… 500 cd/m²
Samsung PM55F-BC Samsung PM55F-BC 55-inch Interactive Display
55″ 1,920 x 1,080 400 / 400

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