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LG 40" LED - UltraFine 40U990A-W
5K PC monitor - 5120 x 2160 pixels - 5 ms (grey to grey) - 21/9 - Curved IPS panel - 120 Hz - HDR 600 - FreeSync Premium - HDMI/DisplayPort/Thunderbolt - Height adjustment - Silver
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5K monitor with Thunderbolt 5 connectivity
Discover the LG UltraFine 40U990A-W monitor, a 40-inch curved screen designed for creative professionals, intensive multitasking or visually demanding uses. Combining 5K2K (5120 × 2160) resolution, a high-end Nano IPS Black panel and Thunderbolt 5 connectivity, it pushes back the boundaries of visual rendering and productivity.
Ultra-high-performance display
The LG UltraFine 40U990A-W is based on a 40" Nano IPS Black panel in 21:9 format, with a resolution of 5120 × 2160 pixels, offering greater display density and finer detail. It covers up to 99% of the DCI-P3 gamut for vivid, accurate and striking colours. Nano IPS Black technology improves the contrast ratio to 2000:1, for deeper blacks and better rendered nuances.
Thanks to its DisplayHDR 600 certification, it is able to deliver brilliant highlights without sacrificing the finesse of darkness. Finally, with a refresh rate of 120 Hz and a response time of 5 ms, this monitor guarantees fluid movement, ideal for videos, animations or more dynamic sessions.
Versatile and ergonomic
In terms of connectivity, this monitor is resolutely geared towards advanced workflows: it has Thunderbolt 5 (up to 96W charge), HDMI 2.1, DisplayPort 2.1, as well as USB-C/USB ports, allowing you to connect and power a laptop with a single cable, while supporting daisy-chaining of screens.
In terms of ergonomics, the screen offers tilt, height and horizontal rotation adjustments, as well as an edge-to-edge chassis on three sides to maximise immersion without distraction. For visual comfort, Flicker Safe mode, Reader mode and other anti-fatigue technologies reduce blue light and flicker during prolonged use. So whether it's video editing, photo editing, programming or demanding multitasking, this monitor is a premium solution for professionals looking for performance and visual comfort.
Select your criteria
General information |
Product name |
LG 40" LED - UltraFine 40U990A-W |
Brand |
LG | |
Model |
40U990A-W.AEU | |
Display |
Screen size |
40 inches |
Screen format |
21:9 | |
Panel type |
IPS display | |
Max resolution |
5120 x 2160 pixels | |
High definition |
5K | |
Dot Pitch |
0.1815 mm | |
Brightness |
450 cd/m² | |
Contrast |
2000 /1 | |
Response time |
5 ms | |
Angle of vision (horizontal) |
178 Degree(s) | |
Angle of vision (vertical) |
178 Degree(s) | |
Matte/anti-glare panel |
Yes | |
HDR (High Dynamique Range) |
Yes | |
HDR standards |
VESA DisplayHDR 600 | |
| HDR10 | ||
NVIDIA G-SYNC |
No | |
NVIDIA Reflex |
No | |
Adaptive-Sync |
Yes | |
AMD FreeSync |
Yes | |
FreeSync |
AMD FreeSync Premium | |
Flicker-Free |
Yes | |
Anti blue light |
Yes | |
Screen |
Screen type |
LED |
Widescreen |
Yes | |
Curved screen |
Yes | |
Monitor curvature |
2500R | |
Borderless |
Yes | |
Touch screen |
No | |
Max vertical frequency |
120 Hz | |
Type of activities |
Graphics | |
| Professional | ||
Ergonomics |
Portable |
No |
Pivot |
No | |
Height adjustable stand |
Yes | |
Removable stand |
Yes | |
VESA mount |
100 x 100mm | |
Back tilt angle (top) |
20 Degree(s) | |
Forward tilt angle (bottom) |
5 Degree(s) | |
Articulating arm |
No | |
Connectivity |
Video inputs |
1 X Thunderbolt 5/USB-C |
| 1 X DisplayPort Female | ||
| 2 X HDMI Female | ||
HDMI standard |
HDMI 2.1 | |
DisplayPort standard |
DisplayPort 2.1 | |
Audio input |
None | |
Audio outputs |
1 X 3.5mm Jack Female Stereo | |
Dock USB-C |
Yes | |
Multimedia |
Built-in speakers |
Yes |
Sound power |
2 X 10 W | |
Webcam |
No | |
TV tuner |
No | |
Physical characteristics |
Color |
Silver |
Release year |
2025 | |
Width |
947.7 mm | |
Height |
614.3 mm | |
Depth |
260 mm | |
Height (without stand) |
419.8 mm | |
Depth (without stand) |
106.3 mm | |
Weight |
14.1 kg | |
Weight (Without stand) |
9.2 kg | |
Multi-monitor bundle |
No | |
Power supply |
Energy class |
F |
Consumption |
40 kWh/1000h | |
Standby consumption |
0.3 W | |
Internal power supply |
Yes | |
Specificities |
PS5 optimized |
No |
Xbox Series optimized |
No | |
Warranties |
Commercial warranty |
Seller 5 years
|
Legal warranty |
See terms & conditions
|
|
Safety Information |
Responsible person |
LG Electronics Deutschland GmbH |
Postal address |
Alfred-Herrhausen-Allee 3-5, 65760 Eschborn, Germany | |
Electronic Address |
gpsr@lge.com |
See all LG products
Product referenced on 3 Oct 2025
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