LG 75UL3J-E 75-inch UHD Standard Signage Display

Overview

The LG 75UL3J-E is a 75-inch UHD signage display built for lobbies, meeting rooms and information points. It pairs an IPS panel with webOS 6.0, built-in Wi-Fi, two 10W speakers and three HDMI inputs. Its 16/7 operation rating and 0–40 °C operating range suit air-conditioned Doha venues running long hours. Offices, schools and retailers across Qatar can request a quote for supply and installation.

What the LG 75UL3J-E is built to do

The LG 75UL3J-E is a 75-inch standard signage display from the UL3J series, made for showing information, branded content and video to people who walk past or wait in a space. Its 3840 x 2160 native resolution sits on an IPS panel, so text, logos and motion stay clear when viewed from the side. The direct-lit panel is rated at 330 nit typical brightness with a 1,200:1 contrast ratio, and covers DCI 80% of the colour gamut.

Connectivity, control and software

Three HDMI inputs with HDCP 2.2 and 1.4 support handle most external sources, while one LAN port, two USB 2.0 Type A ports and RS232C input and output allow network and serial control. The display does not include DisplayPort, HDMI output, a daisy-chain port or touch USB, so every screen in a multi-screen layout needs its own feed. Built-in webOS 6.0 can run content from its 8GB internal memory, with local scheduling, group management and automatic ID setting for several units.

Built-in Wi-Fi and Bluetooth support wireless content distribution and firmware updates on the same network. Two 10W speakers mean simple announcements and video can play without external audio hardware. The unit also carries a temperature sensor and an auto brightness sensor.

Where it suits Qatar

Reception and lobbies: a government ministry or bank entrance in West Bay or Msheireb showing wayfinding, visitor information and news.
Classrooms and corridors: a school in Al Wakrah or Education City carrying timetables and announcements across several floors.
Meeting rooms: a boardroom in Lusail working with a Cisco conferencing system and a Crestron control system, with the display listed as compatible with both.

What to plan before ordering

The head weighs 31.4 kg and the packed unit weighs 40.3 kg, measuring 1678 x 964 x 59.9 mm with a 400 x 400 mm VESA interface. Plan for two people to lift it and confirm the wall or stand can carry the load. The operating range is 0 °C to 40 °C with 10% to 80% humidity, and 0 °C to 35 °C in portrait orientation, so keep it in air-conditioned space and away from direct sun. The power input is 100–240 V AC at 50/60 Hz, with a typical draw of 155 W and a maximum of 220 W. The box includes a remote with two batteries, a power cord, a cable holder and a regulation book.

The display is covered by the manufacturer's warranty. SmartRooms Qatar supplies the unit, delivers to all eight municipalities of Qatar, provides a free site survey and professional installation, and accepts LPOs and government tenders including Monaqasat. Payment by bank transfer, cheque or purchase order is accepted.

Tell us the number of screens, the room types and the mounting positions, then request a quote from SmartRooms Qatar. Quotations usually follow within one working day.

Highlights

75-inch UHD panel with 3840 x 2160 native resolution
330 nit typical brightness and 1,200:1 contrast ratio
Built-in Wi-Fi, Bluetooth and 8GB internal memory
webOS 6.0 with Crestron Connected and Cisco certification
0 to 40 °C operating range; rated 16 hours a day, 7 days
Two 10W built-in speakers; 400 x 400 mm VESA mount

Estimated timeline

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

Specifications

136 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 - SOFTWARE40

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
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 (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 Enegy 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): YES

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

5 files from the manufacturer

PDF Manuals & guides · Opens on manufacturer site ENG.pdf 618 KB PDF Manuals & guides · Opens on manufacturer site ENG.pdf 5.9 MB PDF Manuals & guides · Opens on manufacturer site MFL71805201_01_QSG.pdf 2.7 MB PDF Drawings & CAD 75UL3J_2D_20220713_110347_.pdf 1.1 MB DWG Drawings & CAD · Opens on manufacturer site 75UL3J_2D.dwg

Questions about 75UL3J-E

Who is the LG 75UL3J-E designed for?

It suits organisations that need a large screen running continuously to show information, rather than an interactive display. Typical sites include reception areas, corporate lobbies, waiting areas and corridors. The 75-inch size is readable from across a wide lobby, and the 16/7 operation rating suits venues open for long hours. If you need touch input, this model does not offer it, so choose a different product for interactive use.

What panel and picture specification does it have?

The 75-inch panel is IPS with a 3840 x 2160 native resolution, 330 nit typical brightness and a 1,200:1 contrast ratio. It has a stated 8 ms grey-to-grey response time, a 60Hz refresh rate and a 1% haze surface treatment. It reproduces 1.07 billion colours and covers DCI 80% of the colour gamut. The 178 degree horizontal and vertical viewing angle keeps images readable for people standing at the side of a meeting room or lobby.

Can it be installed in a hot foyer or near a glass facade in Qatar?

The stated operating range is 0 °C to 40 °C, falling to 0 °C to 35 °C in portrait orientation, with 10% to 80% humidity. That suits air-conditioned indoor spaces, but summer heat next to glazed walls in Doha can raise the ambient temperature. The source data does not rate this model for outdoor or direct-sun use. Check the room temperature and sun exposure during your site survey before fixing the display.

Which ports and inputs does it have?

It has three HDMI inputs supporting HDCP 2.2 and 1.4, one RJ45 LAN input, two USB 2.0 Type A ports, RS232C input and output, and audio output. It has no DisplayPort, DVI-D, RGB input, HDMI output, daisy-chain port or touch USB. Plan your source devices around the three HDMI inputs and a wired network connection, and check cable lengths from any external media player before ordering.

Can it be used in portrait orientation for wayfinding or directory boards?

Yes, the source lists both portrait and landscape operation for this model. Portrait suits building directories, lift lobby information and queue displays. The portrait operating range is narrower, at 0 °C to 35 °C, so ambient heat matters more in that orientation. When you request a quote for an entrance in a shopping mall or office tower, ask SmartRooms Qatar to confirm the mounting orientation and the room's temperature conditions.

Does it need an external media player or an OPS computer?

The source lists no OPS compatibility, so an OPS computer cannot be fitted to this display. It runs webOS 6.0 with 8GB of internal eMMC memory and built-in Wi-Fi and Bluetooth, which lets it play content locally. For complex content or a live feed, connect an external player to one of the three HDMI inputs. Include your content plan in the enquiry so the right playback setup is quoted.

How are several screens managed and monitored?

Listed software options include SuperSign CMS, SuperSign Control+, SuperSign WB and Connected Care, while SuperSign Cloud is not listed. Local features include content scheduling, group manager, automatic ID setting, status mailing and fail over. Web-based remote monitoring lets authorised users check status and adjust settings from a PC or phone on the network, so a facilities team can supervise screens without visiting each site.

Is it compatible with Crestron control and Cisco video conferencing in a meeting room?

The display is listed as Crestron Connected and as Cisco certified, and supports integration with professional AV control systems and Cisco video conference solutions. In a boardroom in West Bay or Lusail, this allows it to be included in a Crestron control system and used alongside a Cisco conferencing setup. Confirm the exact Cisco and Crestron models your room uses with the SmartRooms Qatar team before you order.

Can staff share laptop screens wirelessly?

Yes, through the LG One:Quick Share solution, which uses a USB transmission unit, an app and embedded Wi-Fi. A user can share a PC screen with the USB dongle button and adjust volume and picture mode without the remote. The source does not confirm whether the USB unit is supplied with this model, so ask for it to be itemised in your quotation before finalising a meeting room layout.

What power does it need in Qatar and how much does it use?

It accepts AC 100–240V at 50/60Hz with built-in power, which covers Qatar's 240 V, 50 Hz supply. Typical consumption is 155W and maximum is 220W, dropping to 108.5W in smart energy saving mode and 0.5W when powered off. For a school or government building running the display for long hours, these figures help estimate running costs. Confirm the socket location during the site survey, since a power cord is supplied in the box.

How heavy is it, and what should be planned for wall mounting?

The head weighs 31.4 kg and the packed weight is 40.3 kg, with dimensions of 1678 x 964 x 59.9 mm. The display supports a 400 x 400 mm VESA mount. At this weight, two people should handle lifting, and the wall or stand must be checked for load capacity. SmartRooms Qatar offers a free site survey and professional installation, which is worth booking before fixing a panel in a lobby or school corridor.

Can a school or government entity order it through an LPO or tender?

Yes. SmartRooms Qatar accepts purchase orders (LPOs) and government tenders, including Monaqasat, and accepts payment by bank transfer, cheque or purchase order. A school needing several 75-inch displays for classrooms or corridors should send the quantity, mounting locations and LPO requirements. Quotations usually follow within one working day. The product is covered by the manufacturer's warranty.