LG 55SM5KE (Discontinued) · Replacements in Qatar

Name: LG 55SM5KE 55-inch FHD Standard Signage Display
Brand: LG
SKU: lg-55sm5ke
Availability: Discontinued

Overview

The LG 55SM5KE is a discontinued 55-inch full HD signage display with 450 nits typical brightness. Its embedded content management system lets staff build playlists and play them without a separate PC. Three HDMI inputs, a USB 3.0 port and OPS compatibility suit reception areas, lobbies and campus corridors. Owners of this model and buyers seeking a replacement can request a quote.

What the LG 55SM5KE is

The LG 55SM5KE is a 55-inch Full HD signage display from the SM5K series, built for looping promotions, wayfinding and information screens in reception areas, corridors and lobbies. The manufacturer has discontinued this model, so this page serves organisations that already run it, buyers comparing it with newer displays, and anyone seeking a replacement with a similar specification. The panel offers 1,920 x 1,080 resolution and 450 nits typical brightness.

Playback and content management without a PC

A quad-core processor running the webOS smart signage platform handles playback. An embedded content management system lets staff create playlists, edit content and schedule material from the display itself, so simple schedules need no separate media computer. Transitions between videos, images and HTML pages are gapless, leaving no black flash between items. The display also accepts IP streams over RTSP, RTP, HLS and UDP multicast.

Connectivity, control and screen layout

The rear panel provides these interfaces:

Three HDMI inputs, one DisplayPort input, one DVI-D input and a USB 3.0 port
DisplayPort (SST) output and an audio output with off, fixed and variable settings
RS232C in and out, an RJ45 input and an IR receiver input for control

Picture-by-picture and picture-in-picture modes split the screen between up to two sources, such as a timetable beside a video. The display installs in landscape or portrait orientation, and its detachable logo can be rotated to match. Built-in speakers add sound to advertising, and a USB connection supports a thermal printer for tickets or queue slips.

Where it fits in Qatar

A private school in Al Wakrah could place one in a primary corridor to show timetables, events and bilingual notices, using portrait orientation beside a staircase. A clinic in West Bay could use one in its waiting area for queue information and health messages. A hotel in Msheireb could mount one in a lobby corridor and use its built-in speakers and playlists for promotions. In each case the display stays in an air-conditioned interior.

Planning the installation

The operating range is 0°C to 40°C with humidity between 10% and 80%. Qatar summers regularly exceed 45°C, so keep the display away from direct sunlight through windows, outdoor locations and unconditioned store rooms. Plan for the following:

Wall space of 1,238 mm wide, 714.9 mm high and 54 mm deep
VESA 300 x 300 mm mount, with the LSW350B wall bracket and AM-B330S VESA adapter available as options
Head weight 17.5 kg, or 20.8 kg with the optional ST-492T stand

Because the panel is heavy, SmartRooms Qatar offers a free site survey before wall mounting to check the wall structure and sightlines. Confirm with your installer that the supplied power cord suits BS 1363 (Type G) sockets. The display carries IEC, EN and UL 60950-1 safety approvals, FCC Class A, CE and KC EMC marks, and is rated Energy Star 8.0. LG also offers an optional cloud service, Signage 365 Care, for remote status monitoring and fault diagnosis.

Owners of this model who need a like-for-like replacement, and buyers choosing between this discontinued unit and a current alternative, can request a quote. We will suggest a current equivalent or compatible replacement and confirm lead times in the quotation. Schools and government bodies can order against a purchase order or LPO, and we deliver to all eight municipalities of Qatar.

Highlights

55-inch Full HD panel with 1,920 x 1,080 resolution
450 nits typical brightness for indoor signage
Embedded CMS builds playlists without a separate PC
Three HDMI inputs plus DisplayPort, DVI-D and USB 3.0
Landscape or portrait use with PBP and PIP modes
Operating range 0°C to 40°C; discontinued by manufacturer

Estimated timeline

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

Specifications

29 specifications · Source: manufacturer · checked Oct 2026

PANEL3

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

CONNECTIVITY3

Input: HDMI (3), DP, DVI-D, Audio, USB 3.0
Output: DP(SST), Audio(Off/Fixed/Variable)
External Control: RS232C In/out, RJ45 In, IR Receiver In

PHYSICAL SPECIFICATION8

Bezel Width: 11.9 mm (T/R/L), 18 mm (B)
Monitor Dimension (W x H x D): 1,238 x 714.9 x 54 mm
Weight (Head): 17.5 kg
Monitor with Optional Stand Dimensions (W x H x D): 1,238m x 773.4 x 219.6 mm
Weight (Head+Stand): 20.8 kg
Carton Dimensions (W x H x D): 1,330 x 807 x 170 mm
Packed Weight: 21.7 kg
VESA™ Standard Mount Interface: 300 x 300 mm

ENVIRONMENT CONDITIONS2

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

POWER2

Power Supply: 100-240 V~, 50/60 Hz
Power Type: Built-In Power

POWER CONSUMPTION2

Typ. / Max.: 100 W (TBD) / 115 W
Smart Energy Saving: 70 W (TBD)

STANDARD(CERTIFICATION)3

Safety: IEC 60950-1 / EN 60950-1 / UL 60950-1
EMC: FCC Class "A" / CE / KC
ErP / Energy Star: N/A / Yes (Energy Star 8.0)

MEDIA PLAYER COMPATIBILITY2

OPS Type Compatible: Yes
External Media Player Attatchable: Yes

SOFTWARE COMPATIBILITY2

Content Management Software: SuperSign CMS
Control and Monitoring Software: SuperSign Control+/Control

ACCESSORY2

Basic: Remote Controller (2ea batteries included), Power cord, QSG, HDMI 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), HDBaseT (EB-B100), Touch Overlay (KT-T55E)

Downloads

6 files from the manufacturer

PDF Manuals & guides 434955SH7E_32434955SM5E_32434955SM5KE_ENG.pdf 5.8 MB PDF Manuals & guides MFL70421401_5_QSG.pdf 880 KB URL Manuals & guides · Opens on manufacturer site Owner's Manual (global) URL Manuals & guides · Opens on manufacturer site User Guide PDF Manuals & guides · Opens on manufacturer site webOS4.0_UG_ENG.pdf 4.4 MB URL Software & firmware · Opens on manufacturer site Software & Drivers (support page)

Questions about 55SM5KE

Is the LG 55SM5KE still available from LG?

No. The manufacturer has discontinued the 55SM5KE, so this page is for organisations that already own one and for buyers looking for a replacement. SmartRooms Qatar can quote a current equivalent or a compatible replacement with a similar 55-inch screen and signage features. Send us your existing model details, the number of units and the mounting plan, and we will reply with options in your quotation.

Where in Qatar would this 55-inch signage display suit best?

It suits corridors, reception areas and lobbies where looping information must be read clearly. A bank branch in Doha could show service notices and promotions in its lobby, while a university building in Education City could place one in a foyer for event listings. It is a signage display, not a video conferencing screen, so meeting rooms should be planned with a different product category.

What brightness and operating temperature does it support?

The panel has a typical brightness of 450 nits. The operating temperature range is 0°C to 40°C, with humidity between 10% and 80%. Qatar summers regularly pass 45°C, so the display should sit in an air-conditioned interior, away from direct sun through windows. For a covered entrance or semi-outdoor area, ask our team to confirm conditions before ordering.

Can it play content without a separate PC or media player?

Yes. The display runs the webOS smart signage platform on a quad-core processor and includes an embedded content management system. Staff can create playlists, edit content and schedule playback from the screen itself. Transitions between videos, images and HTML pages are gapless. If you prefer an external player, the display is OPS-type compatible, including with the optional OPS Kit KT-OPSA, and external media players can be attached.

Which inputs and outputs does it have?

The inputs are three HDMI ports, one DisplayPort input, one DVI-D input, an audio input and a USB 3.0 port. The outputs are a DisplayPort (SST) output and an audio output with off, fixed and variable settings. Control interfaces include RS232C in and out, an RJ45 input and an IR receiver input. Plan your cable routes and source devices before installation so each input is labelled correctly.

Can it be controlled from a control system or a central management tool?

It has RS232C in and out ports, an RJ45 input and an IR receiver input, which give you several ways to link it to a control system. It ships with a remote controller and batteries. SmartRooms Qatar recommends confirming the control method and cable type with your integrator before you order, especially when several screens in one building need the same behaviour.

What wall space and bracket do I need?

The head measures 1,238 mm wide, 714.9 mm high and 54 mm deep, with bezels of 11.9 mm on the sides and top and 18 mm at the bottom. It uses a 300 x 300 mm VESA mount. The head weighs 17.5 kg, or 20.8 kg with the optional ST-492T stand, so the wall or bracket must be rated for that load. SmartRooms Qatar offers a free site survey before wall mounting.

Can it be mounted in portrait orientation for a school corridor or hotel lift lobby?

Yes. The display supports portrait and landscape installation, and its detachable logo can be rotated to match the orientation. A private school in Al Wakrah could mount one in portrait beside a stairwell to show timetables and notices, while a hotel in Msheireb could use a lift lobby for guest information. Confirm the orientation with your installer before fixing the bracket.

Can it show two sources side by side?

Yes. Picture-by-picture (PBP) and picture-in-picture (PIP) modes divide the screen into up to two sources in landscape or portrait format. A clinic in West Bay could show queue numbers beside health messages, or a school could show a live feed beside its daily schedule. Tell us which two sources you plan to use so the input planning is settled before the site visit.

Does it have speakers and support for ticket printing?

It has built-in speakers that can play sound with advertising content. It can also support a thermal printer solution connected through a USB port, which suits queue slips or tickets in restaurants, banks, cinemas and airports. Printer models and setup are not covered in the standard package, so confirm them with SmartRooms Qatar before ordering.

What power supply does it need in Qatar?

The power supply is rated 100-240 V, 50/60 Hz, with built-in power, and maximum consumption is 115 W. That input range covers Qatar's 240 V, 50 Hz mains. A power cord is included, but confirm with the installer that its plug suits BS 1363 (Type G) sockets. Energy Star 8.0 is listed for the model.

Which safety and EMC certifications does it hold, and can it be ordered for a government tender?

The display is listed to IEC 60950-1, EN 60950-1 and UL 60950-1 for safety, and to FCC Class A, CE and KC for EMC, with Energy Star 8.0 listed. Government bodies in Qatar can order against a purchase order or a tender, including Monaqasat. Ask our team which documentation can be included in your tender file.