LG 55EF5K-L (Discontinued) · Replacements in Qatar

Name: LG 55EF5K-L 55-inch Flexible Curved OLED Signage Display
Brand: LG
SKU: lg-55ef5k-l
Availability: Discontinued

Overview

A 55-inch curved OLED signage panel, the LG 55EF5K-L is discontinued by its manufacturer. Its 1920x1080 panel is rated at 150,000:1 contrast with a 120Hz refresh rate, and it can be mounted in portrait or landscape. It suits lobbies and mall atriums in Doha and Lusail where a shaped display should stand out. Request a quote for a current equivalent or compatible replacement.

A curved OLED panel built for shaped spaces

The LG 55EF5K-L is a 55-inch OLED signage panel from the EF5 series, supplied as a flexible open-frame unit. Unlike a flat LCD screen, it can be arranged in concave or convex curves in both portrait and landscape orientation, so a wall, column or atrium can become a feature in its own right. LG has discontinued this model. This page is written for organisations that already run it, buyers comparing it with newer options, and anyone who needs a replacement.

Picture quality and what the numbers mean

Every one of the panel's 1920x1080 pixels emits its own light, so black areas stay off and the contrast ratio is rated at 150,000:1. Typical brightness is 150 nits at 100% average picture level and 400 nits at 25%, a figure to weigh against daylight from nearby windows. The 120Hz refresh rate and 1ms grey-to-grey response keep moving content smooth. The 10-bit colour depth provides 1.07 billion colours, and the BT709 colour gamut is rated at 120%. The hard-coated surface is rated 2H with typical reflectance of 1.2%.

Connecting and managing several panels

The panel includes one HDMI input with HDCP 1.4 and one DisplayPort input with HDCP 1.3, plus a DisplayPort output, two USB 2.0 Type A ports and an audio output. Control connections include RS232C in and out, RJ45 LAN in and out, and an IR input with an external receiver. The LAN daisy chain lets a facilities team control, monitor and update firmware across a row of displays from one point. Tile mode and synchronised playback let each panel show its share of one video. The unit runs webOS 4.0 and is listed as compatible with SuperSign CMS v3.0, SuperSign Control+ v1.7 and v1.9, and SuperSign WB v3.7.15.

Where it fits in Qatar

Hotel lobbies in West Bay or The Pearl: a curved display behind a reception desk or along a feature wall, where the narrow bezel keeps the image clean.
Mall atriums in Msheireb or Lusail: a shaped column that draws visitors without taking much floor space, installed in a cooled area away from direct sun.
Corporate lobbies near Hamad International Airport: wayfinding and brand content on a curved surface that suits visitors walking past.

What to plan before ordering

The stated operating range is 0 °C to 40 °C with 10% to 80% humidity. Qatar summers can pass 45 °C, so the panel should be placed in an air-conditioned space and the cooling capacity checked before installation. Power is AC 100-240V at 50/60Hz, which covers Qatar's 240 V supply. Typical consumption is 309W and the maximum is 318W. A landscape head weighs 5.8 kg and a portrait head 7.0 kg, and the signage box weighs 3.5 kg. Depth is 38.0 mm with the mounting hardware fitted and 12.4 mm without it. The basic kit includes tiling set fixers and flex bars, and an optional Curvature Calibrator supports on-site curve changes. Because a curved arrangement needs a planned wall fixing, we recommend a free site survey first.

Because this model is discontinued, request a quote with your room dimensions, intended curve and number of panels. SmartRooms Qatar will provide a quotation for a current equivalent or compatible replacement, usually within one working day, and can deliver across all eight municipalities of Qatar with professional installation.

Highlights

55-inch curved OLED panel with 1920x1080 Full HD resolution
150,000:1 contrast ratio with self-lit pixels
120Hz refresh rate and 1ms grey-to-grey response
Portrait and landscape curved arrangements supported
LAN daisy chain control, tile mode and synchronised playback
Operating range 0 °C to 40 °C; discontinued by LG

Estimated timeline

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

Specifications

79 specifications · Source: manufacturer · checked Oct 2026

PANEL16

Screen Size (Inch): 55"
Panel Technology: OLED
Back Light Type: OLED
Aspect Ratio: 16:9
Native Resolution: 1920x1080 (FHD)
Refresh Rate: 120Hz
Brightness: 150/400nit (APL 100%/25%)
Contrast Ratio: 150,000 : 1
Color Gamut: BT709 120%
Viewing Angle (H x V): 178x178
Color Depth (Number of Colors): 10bit(R), 1.07Bilion colours
Response Time: 1ms (G to G), 8ms (MPRT)
Surface Treatment (Haze): Hard coating (2H) Reflectance Typ. 1.2%
Life time: 30,000 Hrs (Typ.)
Operation Hours (Hours/Day): 18/7 (Moving Content Only)
Portait / Landscape: Yes

CONNECTIVITY10

HDMI In: Yes(1), HDCP1.4
DP In: Yes(1), HDCP1.3
RS232C In: Yes(1)
RJ45(LAN) In: Yes(1)
IR In: Yes(1), External IR Receiver
USB In: USB2.0 Type A(2)
DP Out: Yes(1)
Audio Out: Yes(1)
RS232C Out: Yes(1) (w/ IR Out)
RJ45(LAN) Out: Yes(1)

MECHANICAL SPECIFICATION6

Bezel Color: Black
Bezel Width: T/R/L/B : 0.6/6.7/6.7/0.6mm (LandScape, Off Bezel) T/R/L/B : 0.6/6.7/6.7/0.6mm (Portrait, Off Bezel) T/R/L/B : 5.0/7.6/7.6/10.6mm (LandScape, On Bezel) T/R/L/B : 5.0/13.2/7.8/5.0mm (Portrait, On Bezel)
Weight (Head): 5.8Kg (LandScape, Head) 7.0Kg (Portrait, Head) 3.5Kg (Signage Box)
Packed Weight: 17.0Kg (LandScape) 17.6Kg (Portrait)
Monitor Dimensions (W x H x D): 1224.9 x 696.2 x 38.0mm (LandScape, Head, w/Pemnut) 701.4 x 1219.7 x 38.0mm (Portrait, Head, w/Pemnut) 1224.9 x 696.2 x 12.4mm (Landscape, Head, w/o Pemnut) 701.4 x 1219.7 x 12.4mm (Landscape, Head, w/o Pemnut) 413 x 353 x 57.3mm (Signage Box)
Carton Dimensions (W x H x D): 1360 x 842 x 252mm

FEATURE - HARDWARE3

Internal Memory (eMMC): 16GB
Temperature Sensor: Yes
FAN (Built-in): Yes

FEATURE - SOFTWARE26

OS Ver. (webOS): webOS4.0
Local Contents Scheduling: Yes
Group Manager: Yes
USB Plug & Play: Yes
Fail over: Yes
RS232C Sync: Yes
Local Network Sync: Yes
Video Tag: Yes (4)
Screen Rotation: Yes
External Input Rotation: Yes
Gapless Playback: Yes
Tile Mode Setting: Yes
Setting Data Cloning: Yes
SNMP: Yes
ISM Method: Yes
Auto Set ID: Yes
Status Mailing: Yes
Control Manager: Yes
Crestron Connected: Yes
PM mode: Yes
Wake on LAN: Yes
HDMI-CEC: Yes
SI Server Setting: Yes
Pro:Idiom: Yes
Scan Inversion: Yes
The security update is supported for: 5 years from the product launch date stated at https://lgsecurity.lge.com/bulletins/idproducts

ENVIRONMENT CONDITIONS2

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

POWER2

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

POWER CONSUMPTION5

Typ.: 309W
Max.: 318W
BTU (British Thermal Unit): 1054 BTU/Hr(Typ.), 1085 BTU/Hr(Max)
DPM: 0.5W
Power off: 0.5W

CERTIFICATION3

Safety: IEC 60950-1 / EN 60950-1 / UL 60950-1
EMC: FCC Class "A" / CE / KC
ERP / Energy Star: Yes / No

SOFTWARE COMPATIBILITY3

SuperSign CMS: Yes (v3.0)
SuperSign Control+: Yes (v1.7 / v1.9)
SuperSign WB: Yes (v3.7.15)

LANGUAGE1

OSD: English, French, German, Spanish, Italian, Korean , Chinese(Simplified), Chinese(Original), Portugues(Brazil), Swedish, Finnish, Norwegian, Danish, Russian, Japanese, Portugues(Europe), Dutch, Czech, Greek, Arabic

ACCESSORY1

Basic: Remote Controller(include battery 2ea), Power Cord, QSG, IR receiver, Regulation Book, Phone to RS232C Gender, FFC Cables(220mmx4ea for connection between panel and Sinage box), DP Cable(2M), LAN Cable(1.5M), RS232 Cable(4P-4P,1.5M), LC Cable(VLC,3M), Tape(4EA for Cabling), Screw(M3xL4.5,30EA / M3xL5.5,50EA / M3x3.5, 10EA), Shield Cover Assy', Tiling Set Fixer 6EA, Flex Bar 2EA

SPECIAL FEATURE1

Tilt (Face down): Yes

Downloads

8 files from the manufacturer

PDF Manuals & guides · Opens on manufacturer site MFL71904001_02_220624.pdf 57.1 MB PDF Manuals & guides · Opens on manufacturer site MFL71934805_01_250124.pdf 8.6 MB URL Manuals & guides · Opens on manufacturer site Owner's Manual URL Manuals & guides · Opens on manufacturer site User Guide PDF Manuals & guides · Opens on manufacturer site webOS4.0_UG_ENG.pdf 4.4 MB PDF Drawings & CAD 55EF5K-L_2D_20220713_134828_.pdf 891 KB DWG Drawings & CAD · Opens on manufacturer site 55EF5K-L_2D.dwg URL Software & firmware · Opens on manufacturer site Software & Drivers (support page)

Questions about 55EF5K-L

Is the LG 55EF5K-L still sold new?

No. LG has discontinued the 55EF5K-L, so the manufacturer no longer offers it as a new product. SmartRooms Qatar can quote for a current equivalent or a compatible replacement, and we will confirm availability and suitability before you commit. To speed up the quotation, send your room layout, the number of screens and the mounting arrangement, and we will usually reply within one working day.

What kind of organisation should choose this curved panel?

It suits buyers who want a shaped display rather than a flat screen, such as a hotel reception wall, a feature column in a mall or a landmark in a corporate lobby. It can be curved concave or convex in portrait or landscape. Its 18/7 operating rating applies to moving content only, so plan static menus or still images around that limit and confirm the content type with us before ordering.

Will the screen be bright enough for a Doha lobby with large windows?

Typical brightness is 150 nits at 100% average picture level and 400 nits at 25%, so daylight can wash out the image in a bright room. Place the panel away from direct sun, avoid facing it straight into a large window, and ask for a site survey if glare is a concern. The operating range also tops out at 40 °C, so the lobby must stay air-conditioned during the day.

Can several panels be combined into one video wall?

Yes. The screen can be enlarged by tiling units horizontally and vertically. Tile mode and synchronised playback let each panel play its part of one video, and the LAN daisy chain lets you control and monitor the group from one point. The basic kit includes six tiling set fixers and two flex bars. Confirm the number of tiles and the mounting layout during the site survey.

Does the on-screen menu support Arabic?

Yes. The on-screen display lists Arabic among its languages, alongside English, French, Spanish and many others. That suits Qatari offices and schools that work in Arabic and English side by side, since the set-up menus can run in Arabic while the content can be in either language. Please confirm the language settings with the SmartRooms Qatar team before installation.

Will it run on Qatar's electricity supply?

The power supply is rated AC 100-240V at 50/60Hz, which covers Qatar's 240 V, 50 Hz mains. Typical consumption is 309W, with a maximum of 318W and 0.5W when powered off. Place a power point close to the signage box and check the cable route during the site survey, so the cables stay tidy and safely away from the panel.

How can the display be controlled from a building system?

The specifications list RS232C in and out, RJ45 LAN in and out, IR input, SNMP, Wake on LAN, HDMI-CEC and Crestron Connected support. Software features include local content scheduling, status mailing and fail over. Tell us which control system your building uses when you request a quote, so we can check the connections needed for your setup.

How long will the panel last, and how long do security updates continue?

The typical panel life is 30,000 hours. LG states that security updates are supported for five years from the product launch date listed in its data, so check the launch date for your unit before planning its service life. Real lifespan depends on daily hours, ambient temperature and whether the panel stays within its 0 °C to 40 °C operating range.

Can it be used outdoors or next to a window at a dusty site?

Its stated operating range is 0 °C to 40 °C and 10% to 80% humidity, so it is specified for indoor, air-conditioned spaces. Qatar summer temperatures can exceed 45 °C and dust storms are common, so an outdoor or window-facing location needs environmental review before quoting. We will confirm the site conditions with you during the quotation process.

Is it suitable for a university corridor in Education City?

It suits corridors and atriums where students and visitors pass by, showing event notices, timetables and wayfinding. A 55-inch panel fits a corridor or meeting area better than a large hall, and it can be mounted in portrait on a column or in landscape on a curved wall. Keep the space air-conditioned, and plan extra panels in a tiled group if the wall is long.

Will this model fit a clinic waiting area in Al Rayyan?

The landscape head measures 1224.9 x 696.2 mm and the portrait head 701.4 x 1219.7 mm, with 38.0 mm depth including mounting hardware. Heads weigh 5.8 kg landscape and 7.0 kg portrait, and the signage box measures 413 x 353 x 57.3 mm. Check the wall's strength and clearance for the signage box before fixing, and book a free site survey to confirm the layout.

How do I order, get it installed and pay?

Send your room details and quantity, and SmartRooms Qatar will quote, usually within one working day. We supply and deliver to all eight municipalities of Qatar, arrange professional installation, and offer a free site survey, which is especially useful for curved arrangements. Payment can be by bank transfer, cheque or purchase order, and we handle LPOs and government tenders including Monaqasat.