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55XS4J

LG 55XS4J 55-inch Window-Facing Digital Signage Display

Screen size
55"
Resolution
1920 x 1080 (FHD)
Brightness
4,000nit (Typ), 3,200nit(Min)
Operation
24/7
WhatsApp
Priceon request
QuotationWithin 1 working day
DeliveryConfirmed with your quote, based on stock
PDFDownload datasheet (ENG.pdf)
Overview

The LG 55XS4J is a 55-inch window-facing display rated at 4,000 nit typical brightness, suited to storefronts and glass frontages where sunlight washes out ordinary screens. It has a 1920 x 1080 IPS panel, webOS 4.1 with embedded scheduling, built-in Wi-Fi and a 0-40°C operating range. It suits retail outlets, hotel entrances and bank branches in West Bay, Msheireb and Lusail needing bright content visible from the street.

A 55-inch display made for windows and glass frontages

The LG 55XS4J is a 55-inch signage display designed to sit behind glass and keep content readable in daylight. Its IPS panel is rated at 4,000 nit typical brightness with a 3,200 nit minimum, which gives storefront and lobby content a presence that standard indoor displays cannot match. The panel runs at 1920 x 1080 Full HD resolution and is specified for 24/7 operation.

The specifications that matter for street-facing content

Brightness alone does not solve glare. The 55XS4J includes a QWP (quarter wave plate) layer, which the manufacturer says keeps the image readable for viewers wearing polarised sunglasses. An automatic brightness sensor raises output in strong light and lowers it in darker conditions, which helps manage power use over a long day. The panel lists a 1,000:1 contrast ratio, 500,000:1 dynamic contrast, an NTSC 72% colour gamut and 8-bit colour depth, so review these against your content before you choose.

Where it fits in Qatar

Three typical placements show how the display is used:

  • Retail frontage in West Bay or Msheireb: a promotional loop facing the street, where the typical brightness keeps offers visible through midday glare.
  • Hotel lobby in The Pearl or Lusail: a welcome and wayfinding screen visible from the entrance, managed remotely by the operations team.
  • Bank branch or service centre window in Al Sadd or Doha: queue information and service announcements, scheduled from the built-in content tools.

What to plan before installation

The head weighs 26.0 kg and 31.2 kg packed, and measures 1235.5 x 709.4 x 85.4 mm. It uses a 600 x 400 VESA mounting pattern. Two optional wall mounts are listed, WM-L640V for landscape and WM-P640V for portrait, and no stand is offered, so plan for a wall or frame mount and arrange a site survey before fixing a heavy unit to glass-fronted walls. The operating range is 0 to 40°C without direct sunlight and 0 to 30°C when exposed to direct sunlight, with 10 to 80% humidity. Qatar summer temperatures can exceed 45°C, so confirm shading and ventilation with the SmartRooms Qatar team. The input range of 100 to 240 V, 50/60 Hz covers Qatar's 240 V, 50 Hz mains. Typical draw is 375 W at full white and 147 W under IEC 62087, with a maximum of 400 W.

Connectivity and remote management

Inputs include two HDMI ports (HDCP 1.4), one DisplayPort input (HDCP 1.3), one USB 2.0 Type A port and an RJ45 LAN port, with RS-232C and IR inputs for control. A DisplayPort output passes the input signal on, and RS-232C output supports serial control. Internal memory is 16 GB and Wi-Fi is built in for wireless content distribution and firmware updates. The web-based Control Manager lets authorised staff monitor the unit and adjust it remotely from a phone or PC on the network, and the source lists compatibility with SuperSign CMS, SuperSign Control and Signage 365 Care.

Request a quote for your window display

SmartRooms Qatar supplies the 55XS4J across all eight municipalities of Qatar, with professional installation and a free site survey. Quotations are usually issued within one working day, and multi-unit projects can be quoted against a purchase order (LPO) or a government tender. Request a quote and our team will confirm the mount and accessories for your site.

Highlights

  • 4,000 nit typical brightness, 3,200 nit minimum
  • QWP layer for viewing through polarised sunglasses
  • Operating range 0-40°C without direct sunlight
  • Built-in Wi-Fi and 16GB internal memory
  • webOS 4.1 with embedded scheduling and Control Manager
  • Optional landscape and portrait wall mounts; no stand offered

Estimated timeline

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

Specifications

38 specifications · Source: manufacturer · checked Oct 2026
PANEL14
Screen Size
55"
Panel Technology
IPS, M+(WRGB)
Native Resolution
1920 x 1080 (FHD)
Brightness
4,000nit (Typ), 3,200nit(Min)
Contrast Ratio
1,000:1
Dynamic CR
500,000:1
Color Gamut
NTSC 72%
Viewing Angle(H x V)
178 x 178
Color Depth
8bit, 16.7Million colors
Response Time
9ms(G to G)
Surface Treatment(Haze)
3%
Operation Hours (Hours/Day)
24/7
Portrait / Landscape
Yes / Yes
QWP(Quarter Wave Plate)
Yes
CONNECTIVITY(JACK INTERFACE)2
Input
HDMI (2, HDCP1.4), DP (1,HDCP1.3), RS232C IN (4pin phone jack), RJ45(LAN), IR IN, USB2.0 Type A (1)
Output
DP Out (Input DP/HDMI), Externel Speaker Out (L/R, 10W+10W), RS232C OUT
MECHANICAL SPECIFICATION5
Bezel Width
12.0/9.9/9.9/12.0 mm
Weight(Head)
26.0Kg
Packed Weight
31.2Kg
Monitor Dimension(W x H x D)
1235.5 x 709.4 x 85.4mm
VESA™ Standard Mount Interface
600 x 400
KEY FEATURE2
HW
Internal Memory 16GB, Wi-Fi Built-in, Temperature Sensor, Auto Brightness sensor, Acceleration(Gyro) Sensor, Local Key Operation, FAN
SW
webOS (webOS4.1), Embedded CMS (Local Contents Scheduling, Group Manager), USB Plug & Play, Fail over, Background Image(Booting Logo Image, No Signal Image), Sync Mode(RS-232C Sync, Local Network Sync, Backlight Sync), Multi-screen(PIP, PBP(2)), Screen Share, Video Tag(4), Play via URL, Rotation (Screen Rotation, External Input Rotation), Gapless Playback, Tile Mode Setting(Max. 15x15), Setting Data Cloning, SNMP, ISM Method, Auto Set ID, Status Mailing, Control Manager, Power (Smart Energy Saving, PM mode, Wake on LAN, Network Ready), Beacon, HDMI(CEC), SI Server Setting, webRTC, Pro:Idiom
ENVIRONMENT CONDITIONS2
Operation Temperature
0 °C to 40°C (w/o Direct Sunlight, Direct Sunlight in Cooling System) 0 °C to 30°C (Direct Sunlight)
Operation Humidity
10 % to 80 %
POWER2
Power Supply
AC 100-240V~, 50/60Hz
Power Type
Built-In Power
POWER CONSUMPTION3
Typ.
375W (Full White) 147W (IEC 62087)
Max
400W
BTU (British Thermal Unit)
1280 BTU/Hr(Typ.), 1365 BTU/Hr(Max)
CERTIFICATION3
Safety
CB / NRTL
EMC
FCC Class "A" / CE / KC / VCCI
ErP
Yes
SOFTWARE COMPATIBILITY3
SuperSign CMS
Yes
SuperSign Control / Control+
Yes / Yes
Signage 365 Care
Yes (LG Connectedcare)
ACCESSORY2
Basic
Remote Controller(including battery 2ea), Power Cord, HDMI Cable,Manual (EIG, IG), IR Receiver(w/ Ambient Light Sensor), RS-232C Gender
Optional
WM-L640V(Landscape wall mount), WM-P640V(Portrait wall mount) ** Stand is not available

Downloads

8 files from the manufacturer

Questions about 55XS4J

What is the LG 55XS4J built for?
It is a 55-inch display built for window-facing and high-brightness indoor signage, where content has to stay readable behind glass in daylight. With a 4,000 nit typical brightness rating and 24/7 operation at 1920 x 1080, it suits shopfronts, lobbies and branch windows more than dimmer meeting or classroom spaces.
How bright is the panel, and does it adjust itself?
The panel is rated at 4,000 nit typical and 3,200 nit minimum. An automatic brightness sensor raises output in strong light and lowers it in darker conditions, so the screen does not run at full power all day. Contrast is listed at 1,000:1 static and 500,000:1 dynamic, with an NTSC 72% colour gamut and 8-bit colour depth.
Will people wearing polarised sunglasses be able to read it?
The 55XS4J includes a QWP (quarter wave plate) layer, which the manufacturer says keeps the image visible to viewers wearing polarised sunglasses. That matters on a bright street where pedestrians and drivers look through tinted lenses. The panel also supports both portrait and landscape orientation.
Can it go in a window in Al Wakrah that gets afternoon sun?
The rated range is 0 to 40°C without direct sunlight and 0 to 30°C when exposed to direct sunlight, with 10 to 80% humidity. Qatar summer heat can exceed 45°C and the data lists no outdoor rating, so confirm the exact position, shading and ventilation with the SmartRooms Qatar team before fitting a unit in afternoon sun.
Does a West Bay shop need a separate media player?
Not necessarily. The manufacturer says the quad-core processor can run several tasks at once without a separate media player, and webOS 4.1 includes local content scheduling and group management. A shop in West Bay can load promotional playlists onto the display itself, with 16GB of internal memory for stored content, and change them as campaigns end.
How can a Msheireb hotel manage several lobby screens remotely?
The built-in Control Manager is web-based and lets staff monitor the unit, make adjustments and control it in real time from a mobile phone or PC, provided it is connected to a network. It keeps current and past data. Local network sync and group management help match several screens, and Wi-Fi is built in for wireless content distribution.
Which content management systems does it work with?
The source data lists compatibility with SuperSign CMS, SuperSign Control and Control+, and Signage 365 Care (LG Connectedcare). If your organisation already runs another content system, check the integration with SmartRooms Qatar before ordering, because the listed compatibility covers only these LG tools.
What inputs and outputs does it have?
There are two HDMI inputs (HDCP 1.4), one DisplayPort input (HDCP 1.3), one USB 2.0 Type A port and an RJ45 LAN port. A DisplayPort output passes the input signal to another display, while RS-232C in and out, an IR input and a 10W+10W external speaker output provide control and audio options.
How heavy is it, and what mounting options are there?
The head weighs 26.0 kg and 31.2 kg packed, and measures 1235.5 x 709.4 x 85.4 mm. It uses a 600 x 400 VESA pattern. The optional WM-L640V suits landscape installation and WM-P640V suits portrait. The source lists no stand, so plan for a wall or frame mount and arrange a site survey to check the wall or window structure.
What comes in the box?
The kit includes a remote controller with two batteries, a power cord, an HDMI cable, manuals, an IR receiver with an ambient light sensor and an RS-232C gender adapter. The unit also has 16GB internal memory, a temperature sensor, an auto brightness sensor, a gyro sensor and a fan. Mention any extra cabling needs when requesting a quote.
Is it suitable for a bank branch window in Al Sadd?
It can be, when the display sits indoors behind glass, because it is specified for 24/7 operation and its brightness sensor lowers output in dim conditions. Plan a dedicated power outlet: typical draw is 375 W at full white and 147 W under IEC 62087, with a maximum of 400 W. The 100 to 240 V, 50/60 Hz input range covers Qatar mains.
We are a school in Al Rayyan ordering several units. Can we buy through an LPO?
Yes. SmartRooms Qatar supports purchase orders (LPO) and government tenders, including Monaqasat, and accepts payment by bank transfer, cheque or purchase order. Quotations are usually issued within one working day. Ask for one quotation covering all units, mounts and cabling, and arrange site surveys before the order is placed.

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