LG 34WN780-B.AAU 34″ 75Hz Monitor

34 inch · 3440 x 1440 · 75 Hz · IPS

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Screen size 34 inch
Resolution 3440 x 1440
Refresh rate 75 Hz
Panel IPS
Response time 5 ms

LG 34WN780-B.AAU 34″ 75Hz Monitor is a 34-inch monitor with 3440 x 1440 resolution, a 75 Hz refresh rate and IPS panel. Fine for work and everyday use; for fast shooters look at 144 Hz and up. It came out in 2026.

Released: 2026-03-31

Specifications

Key specs

Screen size: 34 inch
Resolution: 3440 x 1440
Refresh rate: 75 Hz
Panel: IPS
Response time: 5 ms
Released: 2026-03-31
Part number: 34WN780-B.AWH

Display

Display diagonal: 86.4 cm (34")
Display resolution: 3440 x 1440 pixels
HD type: UltraWide Quad HD
Native aspect ratio: 21:9
Display technology: LED
Panel type: IPS
Display brightness (typical): 300 cd/m²
Response time: 5 ms
Anti-glare screen: Yes
Screen shape: Flat
Contrast ratio (typical): 1000:1
Maximum refresh rate: 75 Hz
Viewing angle, horizontal: 178°
Viewing angle, vertical: 178°
Display number of colours: 16.7 million colours
Pixel pitch: 0.2325 x 0.2325 mm
High Dynamic Range (HDR) supported: Yes
High Dynamic Range (HDR) technology: High Dynamic Range 10 (HDR10)
Colour gamut standard: sRGB
sRGB coverage (typical): 99%

Performance

AMD FreeSync: Yes
AMD FreeSync type: FreeSync
VESA Adaptive Sync support: Yes
Flicker-free technology: Yes

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Multimedia

Number of speakers: 2
RMS rated power: 7 W
Built-in speaker(s): Yes

Design

Market positioning: Business
Product colour: Black

Ports & interfaces

Built-in USB hub: Yes
Number of upstream ports: 1
USB Type-A downstream ports quantity: 2
HDMI: Yes
HDMI ports quantity: 2
DisplayPorts quantity: 1
Headphone out: Yes

Ergonomics

VESA mounting: Yes
Panel mounting interface: 100 x 100 mm
Height adjustment: Yes
Swivelling: Yes
Tilt adjustment: Yes
On Screen Display (OSD): Yes

Power

Power consumption (typical): 45 W
Power consumption (standby): 0.5 W
Power consumption (max): 67 W
Power consumption (off): 0.3 W
AC input voltage: 100 - 240 V

Weight & dimensions

Width (with stand): 817.9 mm
Depth (with stand): 406.4 mm
Height (with stand): 612.4 mm
Weight (with stand): 10.8 kg
Width (without stand): 816.5 mm
Depth (without stand): 45.5 mm
Height (without stand): 365.3 mm
Weight (without stand): 6.9 kg

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About this product

34" 21:9 UltraWide™ QHD Wider View to Get More Done See more, do more. The 34-inch UltraWide® QHD (3440x1440) resolution allows you to edit clips of footage and simultaneously run different programs. You can edit, code and review, while enjoying the immersive and clear visual experience on a rich, vivid IPS screen that's accurate at wide angles.

HDR10

Enjoy the Latest HDR Videos and Games HDR10 elevates picture quality for a more dynamic visual immersion experience and enhanced color of HDR content. HDR10 is the digital HDR standard based on the sRGB 99% color gamut. A true difference in color and brightness. Full Movement of Display Perfectly Follow Your Eye Level Enhanced flexibility of the Ergo stand offers expanded ergonomic adjustment of extend, retract, swivel, height and tilt as well as providing perfect position of screen for more comfortable and sustainable user experience. Clutter-Free Desk Setup Fully Use Your Desk The compact design takes up very little desk surface and also contributes to easier installation.

User manual (PDF)

34WN780-B.AAU vs similar monitors

	LG 34WN780-B.AAU 34″ 75Hz Monitor	LG 34WQ75C-B 34″ 60Hz Monitor	LG 34U650A-B 34″ 100Hz Monitor	LG 34BA85QE-B 34″ 60Hz Monitor
Screen size	34 inch	34 inch	34 inch	34 inch
Resolution	3440 x 1440	3440 x 1440	3440 x 1440	3440 x 1440
Refresh rate	75 Hz	60 Hz	100 Hz	60 Hz
Panel	IPS	IPS	IPS	IPS
Response time	5 ms	5 ms	5 ms	5 ms
Released	2026	2026	2026	2026