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Rectangular 43 inch commercial display with thin black bezel and matte screen surface

LG Electronics

LG Electronics 43UL3J-M 43" commercial display

SKU CH-FNKS-GV3QC MPN 43UL3J-M

43-inch 4K commercial display with 300 nits brightness and webOS platform for digital signage

  • Screen Size43"
  • Native Resolution3840 x 2160 (4K)
  • Aspect Ratio16:9
  • Brightness300 nits
  • Contrast Ratio (Typical)1200:1
  • Sharp 4K detail from 3840 x 2160 resolution
  • Clear visibility in lit rooms with 300 nits brightness
  • Deep blacks supported by 1200:1 contrast ratio
  • webOS platform runs signage apps without extra hardware
  • Works with AV control systems for simple integration

Screen size and resolution

The LG Electronics 43UL3J-M is a 43-inch commercial display with a native 3840 x 2160 resolution. It runs on a webOS platform and supports LG One:Quick Share for wireless content sharing. The panel is EPEAT registered and works with common AV control systems.

Indoor signage use

This display suits retail, corporate and education spaces that need a standard-brightness 4K screen for daytime viewing. Buyers who need higher luminance for bright storefront windows or direct sunlight should look at models with brighter panels. It is not built for outdoor installation.

Brightness level

Typical brightness is rated at 300 nits, which determines how well the screen performs in ambient light. This figure is the key specification for deciding whether the panel meets a specific site's lighting conditions.

Highlights

  • Sharp 4K detail from 3840 x 2160 resolution
  • Clear visibility in lit rooms with 300 nits brightness
  • Deep blacks supported by 1200:1 contrast ratio
  • webOS platform runs signage apps without extra hardware
  • Works with AV control systems for simple integration

Specifications

Screen Size43"
Native Resolution3840 x 2160 (4K)
Aspect Ratio16:9
Brightness300 nits
Contrast Ratio (Typical)1200:1
Shipping weight10.90 kg
Package size1055 × 660 × 142 mm

Questions about this item

Which video sources can drive the 3840 x 2160 panel on this 43" display?

Any source with an HDMI 2.0 or DisplayPort 1.2 output can deliver 4K at 60 Hz to the 43UL3J-M.

Will a legacy 1080p media player work with this screen?

Yes, the display accepts 1080p signals and scales them to the native 3840 x 2160 resolution.

How can I confirm the panel is showing true 4K after installation?

Open the on-screen information menu; it will report 3840 x 2160 at 60 Hz when a 4K source is active.

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