LG 75UL3J 75-inch UHD Standard Signage Display

Overview

The LG 75UL3J is a 75-inch UHD standard signage display with a 3840 x 2160 IPS panel, 330 nit typical brightness and webOS 6.0. It has three HDMI inputs, built-in Wi-Fi, 10W x 2 speakers and is rated for 16 hours a day, 7 days a week. It suits lobbies, corridors, clinic waiting areas and meeting rooms across Doha and other Qatar cities. Request a quote from SmartRooms Qatar.

What the 75UL3J is built to do

The LG 75UL3J is a 75-inch standard signage display with a 3840 x 2160 UHD IPS panel. It is built to play content for long hours in lobbies, corridors, waiting areas and meeting rooms rather than for hands-on interaction. There is no touch input, no overlay touch option and no OPS slot.

A typical brightness of 330 nit, 178-degree horizontal and vertical viewing angles and a 1,200:1 contrast ratio help text and imagery stay readable from the side of a corridor or across a waiting room. The 1% haze surface is a matte-type finish that limits glare.

Connectivity, webOS 6.0 and remote management

Three HDMI inputs with HDCP 2.2 and 1.4 support take media players, laptops or set-top sources. The display runs webOS 6.0 on 8GB of internal eMMC storage, with local content scheduling, group management, tile mode settings and play via URL. Built-in Wi-Fi lets IT staff push content and firmware updates across the same network without a cable run to each screen.

Two USB 2.0 Type A ports for plug-in devices and sensor connections
RS232C in and out for control from a room controller or AV system
Crestron Connected support and Cisco certification for AV and video conferencing integration
Remote monitoring and control from a phone or PC on the network, plus the optional LG ConnectedCare cloud service

The built-in 10W x 2 speakers cover announcements and short clips without external audio hardware. The LG One:Quick Share wireless screen sharing solution works with the UL3J series through a USB transmission unit and app, so confirm the exact kit when you request a quote.

Where it fits across Qatar

A government office in Msheireb can place one in its reception lobby to show visitor directions in Arabic and English, because the on-screen menu supports Arabic. A private clinic in Al Sadd can show queue numbers and health tips in its waiting area while its facilities team checks the screen over the network. In a meeting room at Education City, the 75-inch panel can display agendas and presentations, and the unit supports Cisco solutions for video calls with teams abroad.

What to plan before installation

Head weight 31.4 kg and 40.3 kg packed: check wall or trolley capacity first
VESA 400 x 400 mm mounting interface: match the bracket before ordering
Dimensions 1678 x 964 x 59.9 mm, with a 7.9 mm bezel on three sides when powered off
Operating range 0 to 40 °C, or 0 to 35 °C in portrait, at 10 to 80% humidity
Input 100-240 V, 50/60 Hz; typical 155 W, maximum 220 W

Summer temperatures outside can exceed 45 °C, so mount the display indoors in an air-conditioned room that stays within the operating range. The power supply is built into the display. SmartRooms Qatar offers a free site survey before wall mounting a unit of this weight, and quotations are usually provided within one working day. Send your room size, mounting plan and content plan to request a quote.

Highlights

75-inch UHD IPS panel at 3840 x 2160 resolution
330 nit typical brightness and 1,200:1 contrast ratio
Three HDMI inputs with HDCP 2.2 and 1.4 support
webOS 6.0, 8GB eMMC storage and built-in Wi-Fi
Built-in 10W x 2 speakers plus RS232C in and out
Rated for 16 hours a day, 7 days a week; 0 to 40 °C

Estimated timeline

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

Specifications

135 specifications · Source: manufacturer · checked Oct 2026

PANEL19

Screen Size (Inch): 75
Panel Technology: IPS
Back Light Type: Direct
Aspect Ratio: 16:9
Native Resolution: 3840 x 2160 (UHD)
Refresh Rate: 60Hz
Brightness: 330nit (Typ.)
Contrast Ratio: 1,200:1
Dynamic CR: 1,000,000:1
Color Gamut: DCI 80%
Viewing Angle (H x V): 178º x 178º
Color Depth (Number of Colors): 1.07 Billion colors
Response Time: 8ms (G to G)
Surface Treatment (Haze): Haze 1%
Life time: 30,000Hrs (Min.)
Operation Hours (Hours/Day): 16/7
Portait / Landscape: YES / YES
Transparency: N/A
QWP (Quarter Wave Plate): N/A

CONNECTIVITY19

HDMI In: YES (3ea)
HDMI In (HDCP Ver.): 2.2/1.4
DP In: NO
DVI-D In: NO
RGB In: NO
Audio In: NO
RS232C In: YES
RJ45(LAN) In: YES (1ea)
IR In: NO
USB In: USB2.0 Type A (2ea)
HDMI Out: NO
DP Out: NO
Audio Out: YES
Touch USB: NO
External Speaker Out: NO
RS232C Out: YES
RJ45(LAN) Out: NO
IR Out: NO
Daisy Chain: NO

MECHANICAL SPECIFICATION10

Bezel Color: Ashed Blue
Bezel Width: Off : 7.9/7.9/7.9/18.4mm On : 13.9/13.9/13.9/19.9mm
Weight (Head): 31.4Kg
Weight (Head+Stand): N/A
Packed Weight: 40.3Kg
Monitor Dimensions (W x H x D): 1678 x 964 x 59.9mm
Monitor Dimension with Stand (W x H x D): N/A
Carton Dimensions (W x H x D): 1820 x 1115 x 200mm
Handle: NO
VESA Standard Mount Interface: 400 x 400 mm

FEATURE - HARDWARE13

Internal Memory (eMMC): 8GB
Wi-Fi/BT (Built-in): YES
Temperature Sensor: YES
Auto Brightness Sensor: YES
Pixel Sensor: NO
Proximity Sensor: NO
Current Sensor: NO
BLU Sensor: NO
Humidity Sensor: NO
Acceleration(Gyro) Sensor: NO
Power Indicator: NO
Local Key Operation: YES
FAN (Built-in): NO

FEATURE - SOFTWARE39

OS Ver. (webOS): webOS 6.0
Local Contents Scheduling: YES
Group Manager: YES
USB Plug & Play: YES
Fail over: YES
Booting Logo Image: YES
No Signal Image: YES
RS232C Sync: YES
Local Network Sync: YES
Backlight Sync: NO
PIP: NO
PBP: NO
Screen Share: YES
Video Tag: YES (4 Video Tag)
Play via URL: YES
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
Cisco Certification: YES
Crestron Connected: YES
Smart Energy Saving: YES
PM mode: YES
Wake on LAN: YES
Network Ready: YES
Beacon: YES
HDMI-CEC: YES
SI Server Setting: YES
webRTC: YES
Pro:Idiom: YES
Brightness Compensation: NO
W/B Setting by Grey scale: NO
Scan Inversion: NO

ENVIRONMENT CONDITIONS2

Operation Temperature: 0 °C to 40 °C (Portrait Scene : 0 °C to 35 °C)
Operation Humidity: 10 % to 80 %

POWER2

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

POWER CONSUMPTION6

Typ.: 155W
Max.: 220W
BTU (British Thermal Unit): 529 BTU/Hr(Typ.), 751 BTU/Hr(Max.)
Smart Energy Saving (70%): 108.5W
DPM: 0.5W
Power off: 0.5W

SOUND1

Speaker (Built-in): YES (10W x 2)

CERTIFICATION4

Safety: CB / NRTL
EMC: FCC Class "A" / CE
ERP / Energy Star: NO / YES
ePEAT(US only): NO

OPS COMPATIBILITY2

OPS Type compatible: NO
OPS Power Built-in: NO

SOFTWARE COMPATIBILITY7

SuperSign CMS: YES
SuperSign Control+: YES
SuperSign WB: YES
SuperSign Cloud: NO
Promota: YES (Not available for EU/CIS)
Mobile CMS: NO
Connected Care: YES

LANGUAGE1

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

ACCESSORY2

Basic: Remote Controller(include battery 2ea), Power Cord, Regulation Book, Phone to D-Sub9 Gender, Cable Holder
Optional: NO

SPECIAL FEATURE8

Overlay Touch Compatibility: N/A
Smart Calibration: N/A
Tilt (Face up): N/A
Tilt (Face down): N/A
IP Rating: N/A
Conformal Coating (Power Board): YES
Power Protection: N/A
Direct Sunlight: N/A

Downloads

7 files from the manufacturer

PDF Manuals & guides · Opens on manufacturer site 435055657586UL3J-BP_Arabic.pdf 2.3 MB PDF Manuals & guides · Opens on manufacturer site ENG.pdf 7.5 MB PDF Manuals & guides · Opens on manufacturer site MFL71799101_01_211019_1.pdf 8.1 MB PDF Manuals & guides · Opens on manufacturer site SAC38517203_ENG_250428.pdf 1.7 MB DWG Drawings & CAD · Opens on manufacturer site 75UL3J_2D.dwg PDF Drawings & CAD · Opens on manufacturer site 75UL3J_2D_20220713_110347_.pdf 1.1 MB URL Software & firmware · Opens on manufacturer site Software & Drivers (support page)

Questions about 75UL3J

Where in Qatar does the 75UL3J make the most sense?

It suits spaces where content must run for long hours, such as a reception lobby in a West Bay hotel, a school corridor or a clinic waiting area. The 75-inch 3840 x 2160 panel gives clear text from several metres away, and the unit is rated for 16 hours a day, 7 days a week. If a room has more than one wall-facing screen, ask us to size the display for viewing distance before you request a quote.

Can the 75UL3J be installed outdoors or in a sunny atrium in Qatar?

No. The 75UL3J is specified for 0 to 40 °C operation, or 0 to 35 °C in portrait orientation, with 10 to 80% humidity. Outdoor summer heat in Qatar regularly exceeds 45 °C, so install it inside an air-conditioned space that stays within the operating range. The specification lists no IP rating, so confirm any semi-open or sun-exposed location with the SmartRooms Qatar team first.

Does it support touch or an OPS computer module?

No. The data lists no touch USB connection, no overlay touch compatibility and no OPS type compatibility. To drive the screen, use the built-in webOS platform for scheduling and playback, or connect an external media player through one of the three HDMI inputs. If your project needs touch interaction, tell us when you request a quote so we can recommend a model suited to that use.

How many inputs does it have, and which connectors are missing?

The panel has three HDMI inputs that support HDCP 2.2 and 1.4, two USB 2.0 Type A ports, an RJ45 LAN input, RS232C input and output, and an audio output. It has no DisplayPort, DVI-D, RGB or HDMI output, so a source device that offers only DisplayPort or USB-C will need an adapter. Check your source devices before placing an order.

How is content loaded and updated across several screens?

The 75UL3J has built-in Wi-Fi and Bluetooth, 8GB of eMMC storage and webOS 6.0. Content can be scheduled locally, grouped, distributed wirelessly and firmware updated over the same network. In a school or office with several units, managed playlists keep every screen showing the same message. The data also lists compatibility with SuperSign CMS, which is useful for central control.

Can it be wall-mounted, and what should I check first?

Yes. It has a 400 x 400 mm VESA mounting interface and measures 1678 x 964 x 59.9 mm. The head weighs 31.4 kg and 40.3 kg packed, so confirm the wall structure or a rated bracket before delivery. In a hotel lobby or boardroom, a professional installation team should check the wall first. SmartRooms Qatar offers free site surveys for heavy wall mounts, and quotations are usually provided within one working day.

How can a facilities team monitor the screen remotely?

The 75UL3J supports web-based remote monitoring and control from a phone or PC on the network, with access to current and past data. It also supports SNMP, Wake on LAN and RS232C control. For a private clinic in Al Sadd or a government building, this means checking screen status without visiting every room. The optional LG ConnectedCare cloud service adds remote fault diagnosis.

Does the on-screen menu support Arabic?

Yes. The on-screen display lists Arabic among its languages, alongside English, French, Spanish and many others. A government service centre in Msheireb or a ministry office in Doha that works in Arabic and English side by side can set the menu for its operator and show bilingual information on the same playlist. Confirm this setting with the installation team when you request a quote.

What power does it need and how much does it draw?

The power input is AC 100-240 V at 50/60 Hz, so it accepts Qatar's 240 V mains. The power supply is built into the display. Typical consumption is 155 W and maximum is 220 W, falling to 108.5 W with smart energy saving at the 70% setting. Check the supplied power cord against BS 1363 sockets when you request your quote.

Can a school or government entity buy several units through an LPO?

Yes. SmartRooms Qatar accepts purchase orders (LPOs) and government tenders, including Monaqasat, and accepts payment by bank transfer, cheque or purchase order. For a school fitting out corridors with several 75-inch units, send the quantity, room list and mounting plan with your LPO request so we can quote the set in one document. Products are covered by the manufacturer's warranty.