LG 55UL3Q 55" UHD Digital Signage Display

Key Features

55″ UHD (3840 x 2160)
Designed for 16 Hours / 7 Days Operation
Easy to Install

The perfect commercial grade screen for digital signage and digital menu boards.

Key features of the LG 55UL3Q

UHD signage for everyday business use

The UL3Q series brings Ultra HD resolution (3840 x 2160) and a wide viewing angle to signage, with 350 nits typical brightness and webOS 6.1 built in.

LG UL3Q series UHD digital signage display

Even bezel design

Horizontal and vertical bezels are the same width (10.8 mm), so the screen looks balanced in landscape or portrait. The uniform frame also makes it easier to install in stores and other public spaces.

LG signage displays with even bezels mounted in landscape and in portrait on a gallery wall

High performance with LG webOS 6.1

LG webOS 6.1 runs multiple tasks smoothly, and its signage platform has an intuitive graphical interface. Developers get a software development kit, SCAP libraries and sample applications. Content can be managed with LG SuperSign CMS, Control+, WB, Cloud and Mobile CMS.

LG webOS signage dashboard with the software development kit, SCAP libraries and sample applications

Built-in brightness sensor

A front-mounted sensor adjusts brightness to the lighting around the display. It keeps picture quality consistent and saves energy without anyone adjusting it by hand.

Front-mounted brightness sensor of an LG signage display

Sustainability

The UL3Q series reflects the ESG commitment of LG Electronics, "Better Life for All". LG received the 2025 EcoVadis Platinum medal, which places it in the top 1% of companies assessed for sustainability.

LG signage display in front of a green forest landscape

Face up / face down tilt

With a compatible mount, the display can tilt up to 15° up or down to meet viewers at eye level, whether it is mounted high or low. LG does not support tilt on the 75" and 86" models.

Advanced security

LG's Enhanced Kernel Protection (EKP) technology guards content and data from unauthorized access. It is validated by ISO/IEC 15408 Common Criteria EAL2 certification.

Remote monitoring and control

A web-based tool lets you monitor and control the display from a phone or PC on the network, with access to current and past data.

LG ConnectedCare (optional)

An optional LG cloud service for remote fault diagnosis and remote control of displays. Availability differs by region and it is purchased separately; ask us whether it is offered for your location.

Source: LG UL3Q series datasheet (August 2026) and LG's product pages. Images are for illustration only.

The LG 55UL3Q is a 55-inch UHD (3840 x 2160) commercial signage display in the LG UL3Q Series, rated at 350 nits (typical) and 16 hours / 7 days operation, running LG webOS 6.1. It measures 1234.2 x 706.7 x 58.9 mm (48.6 x 27.8 x 2.3 in), weighs 12 kg (26.5 lbs) and has a 300 x 300 mm VESA mount pattern. It can be mounted in landscape or portrait. Netvisual, based in Oakville, Ontario, supplies it with installation and support in Canada and the United States.

LG 55UL3Q specifications

Model55UL3Q (the ordering code carries a regional suffix)
Screen size55 inches
PanelADS, direct LED backlight, 16:9
Resolution3840 x 2160 (UHD)
Brightness (typical)350 nits
Contrast ratio1200:1 (dynamic 1,000,000:1)
Colour gamutDCI 80%
Colour depth1.07 billion colours (10 bit)
Viewing angle178° x 178°
Response time (G to G)8 ms
Surface treatment (haze)1%
Operation16 hours / 7 days; rated lifetime 30,000 hours
OrientationLandscape and portrait
PlatformLG webOS 6.1; 8 GB internal memory, built-in Wi-Fi
Inputs3 x HDMI (HDCP 2.2 / 1.4), 2 x USB 2.0 Type-A, RJ45 (LAN), RS-232C in (4-pin phone jack)
Outputs and controlAudio out, RS-232C out, built-in speakers (10 W x 2)
Bezel10.8 mm (even on all sides)
Dimensions (W x H x D)1234.2 x 706.7 x 58.9 mm (48.6 x 27.8 x 2.3 in), without the IR receiver
Weight (display only)12 kg (26.5 lbs)
VESA mount pattern300 x 300 mm
TiltUp to 15° face up and 15° face down
Power consumption98 W typical, 154 W maximum; 100 to 240 V AC, 50/60 Hz, built-in power supply
Operating temperature0 °C to 40 °C
Operating humidity10% to 80%
Software featureswebOS 6.1, local content scheduling, group manager, USB plug and play, fail over, screen and input rotation, gapless playback, tile mode, setting data cloning, SNMP, Crestron Connected, Wake on LAN, HDMI-CEC, webRTC, Pro:Idiom; temperature, auto brightness and acceleration (gyro) sensors; conformal coating
CertificationsSafety CB / NRTL; EMC FCC Class B, CE, KC; ErP / ENERGY STAR: Yes (NewErP) / Yes

Source: LG UL3Q-E product pages (lgcommercialdisplay.com). Values are as printed on LG's commercial display product page for each size (model suffix -E); LG notes that specifications may vary by region. Netvisual checked these figures against that source on October 29, 2026. Inch and pound values are converted from LG's metric figures. Specifications can change; please confirm details with Netvisual before ordering.

LG UL3Q Series: all sizes compared

SizeModelBrightnessDimensions (W x H x D, mm)Dimensions (W x H x D, in)WeightPower (typ. / max.)
43"43UL3Q350 nits965 x 554.9 x 59.1 mm38.0 x 21.8 x 2.3 in7.6 kg83 / 134 W
50"50UL3Q350 nits1120.2 x 641.4 x 59.9 mm44.1 x 25.3 x 2.4 in9.3 kg90 / 152 W
55"55UL3Q (this model)350 nits1234.2 x 706.7 x 58.9 mm48.6 x 27.8 x 2.3 in12 kg98 / 154 W
65"65UL3Q350 nits1452.9 x 829.2 x 59.7 mm57.2 x 32.6 x 2.4 in16.5 kg114 / 176 W
75"75UL3Q350 nits1679.7 x 958.9 x 58.5 mm66.1 x 37.8 x 2.3 in24.1 kg155 / 227 W
86"86UL3Q350 nits1926.6 x 1098 x 60 mm75.9 x 43.2 x 2.4 in31.8 kg205 / 287 W

See all LG commercial grade screens, or contact our experts for a quote.

LG 55UL3Q: common questions

How bright is the LG 55UL3Q?

350 nits typical. That is the brightest rating in the LG UL3Q Series.

Can the LG 55UL3Q be mounted in portrait?

Yes, it supports both landscape and portrait.

What are the size, weight and mount pattern of the 55UL3Q?

1234.2 x 706.7 x 58.9 mm (48.6 x 27.8 x 2.3 in) wide x high x deep, 12 kg (26.5 lbs) without packaging, with a 300 x 300 mm VESA mount pattern.

How many hours a day can the LG 55UL3Q run?

LG rates this series for 16 hours / 7 days operation, with a rated lifetime of 30,000 hours. For continuous 24/7 use, ask us which LG series is rated for it.

Does the LG 55UL3Q need a separate media player?

It runs LG webOS 6.1 with 8 GB internal memory and built-in Wi-Fi, and supports local content scheduling and USB plug and play, so simple signage can run without an external player. Interactive or complex content may still need one.

What warranty does the LG 55UL3Q have?

LG's product page for the LG UL3Q Series does not state the standard warranty period. Ask Netvisual for the warranty terms that apply to your order.

LG, the LG logo, webOS, LG ConnectedCare and other LG product and service names are trademarks or registered trademarks of LG Electronics Inc. All other trademarks are the property of their respective owners. Product names, images and specifications are taken from LG's published materials to identify and describe the products, and their use does not imply endorsement by LG Electronics. Specifications, models and availability can change without notice, so please confirm the details with Netvisual before you order.